CN114613826A

CN114613826A - Light adjusting structure, preparation method of light adjusting structure and display panel

Info

Publication number: CN114613826A
Application number: CN202210242990.4A
Authority: CN
Inventors: 侯鹏; 王青松
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-06-10

Abstract

The disclosure provides a light adjusting structure, a preparation method of the light adjusting structure and a display panel, relates to the technical field of display, and is used for improving the brightness uniformity of each color sub-pixel of the display panel. The light adjusting structure includes a substrate layer, a plurality of light filters, a filling portion and a light shielding pattern. The plurality of light filtering portions are located on one side of the base layer. The plurality of filter portions are arranged at intervals. The filler is located in the gap between the plurality of optical filter portions and around the entire plurality of optical filter portions. And the filling part covers the edge part of the surface of the at least one optical filter part far away from the substrate layer. The shading pattern is positioned on one side of the filling part far away from the basal layer. The light adjusting structure provided by the disclosure is applied to a display panel.

Description

Light adjusting structure, preparation method of light adjusting structure and display panel

Technical Field

The disclosure relates to the technical field of display, and in particular relates to a light adjusting structure, a preparation method of the light adjusting structure and a display panel.

Background

Self-luminous display panels, such as OLED (Organic Light-Emitting Diode) display panels, are widely used due to their characteristics of self-luminescence, fast response, wide viewing angle, and being capable of being fabricated on flexible substrates.

However, in the related art, the self-luminous display panel has a problem that luminance uniformity of each color sub-pixel is poor.

Disclosure of Invention

The present disclosure provides a light modulation structure, a method for manufacturing the light modulation structure, and a display panel, which are used to improve the brightness uniformity of each color sub-pixel of the display panel.

In order to achieve the above object, the present disclosure provides the following technical solutions:

in one aspect, a light conditioning structure is provided. The light adjusting structure includes a substrate layer, a plurality of light filters, a filling portion and a light shielding pattern. The plurality of light filtering portions are located on one side of the base layer. The plurality of filter portions are arranged at intervals. The filler is located in the gap between the plurality of optical filter portions and around the entire plurality of optical filter portions. And the filling part covers the edge part of the surface of the at least one optical filter part far away from the substrate layer. The shading pattern is positioned on one side of the filling part far away from the basal layer.

In some embodiments, the optical refractive index of the filler part is smaller than the optical refractive index of the filter part. The light filtering part comprises a light incident surface and a first inclined surface. The light incident surface is in contact with the substrate layer. One end of the first inclined plane is connected with the light incident surface, and the other end of the first inclined plane extends towards the direction far away from the light incident surface. A first included angle is formed between the first inclined plane and the light incident surface and is an obtuse angle.

In some embodiments, the orthographic projection of the first inclined face on the base layer falls within a range in which the light-shielding pattern is orthographic projected on the base layer.

In some embodiments, the light blocking pattern includes a body portion and a ring portion. The main body part is provided with a plurality of first openings. The annular portion is located within the first opening. A light transmission groove is arranged between the annular part and the main body part. A second opening is formed in the annular portion, and the second opening exposes the light-filtering portion. Wherein, at least part of the orthographic projection of the first inclined surface on the base layer is positioned between the orthographic projection of the main body part on the base layer and the orthographic projection of the annular part on the base layer.

In some embodiments, the optically transmissive groove has a first port and a second port, the second port being closer to the base layer than the first port. The orthographic projection of the edge of the first port on the substrate layer is encircled to form a first area, and the orthographic projection of the edge of the second port on the substrate layer falls into the first area.

In some embodiments, an orthographic projection of the edge of the second port on the substrate layer encloses a second region, and an orthographic projection of the first inclined face on the substrate layer falls within the second region.

In some embodiments, the light filter further includes a light emitting surface connected to one end of the first inclined surface away from the light incident surface. The filling part comprises a second inclined surface. One end of the second inclined surface is in contact with the light-emitting surface, and the other end of the second inclined surface extends towards the direction far away from the light-emitting surface and is gradually inclined towards the first direction. The first direction is a direction far away from the center line of the optical filter part, and the center line of the optical filter part is positioned at the center of the optical filter part and is perpendicular to the light-emitting surface.

In some embodiments, the light modulating structure further comprises a color filter film. The color filter film is positioned on one side of the substrate layer close to the shading pattern. The orthographic projection of the color filter film on the substrate layer is overlapped with at least part of the orthographic projection of the light-shielding pattern on the substrate layer.

In some embodiments, the light modulating structure further comprises a cover layer. The covering layer is arranged on one side of the plurality of light filtering parts, the filling part and the shading pattern, which is far away from the substrate layer. The cover layer covers the plurality of optical filter portions, the filling portion and the light shielding pattern, and the optical refractive index of the cover layer is greater than or equal to that of the optical filter portions.

In another aspect, a method of fabricating a light modulating structure is provided. The method of manufacturing the light adjusting structure includes forming a plurality of light filters on one side of a base layer. The plurality of filter portions are arranged at intervals. Forming a filling part. The filler is located in the gap between the plurality of optical filter portions and around the entire plurality of optical filter portions. And the filling part covers the edge part of the surface of the at least one optical filter part far away from the substrate layer. And forming a light shielding pattern. The shading pattern is positioned on the surface of the filling part, which is far away from the base layer side.

In yet another aspect, a display panel is provided. The display panel comprises a display substrate and the light modulation structure. The light modulating structure is located on a display side of the display substrate.

In some embodiments, the display substrate includes an encapsulation layer. The encapsulation layer is multiplexed as a base layer of the light modulating structure.

In some embodiments, the display substrate further includes a substrate, a circuit structure layer, a planarization layer, a light emitting structure layer, and an encapsulation layer. The circuit structure layer is positioned on one side of the substrate. The flat layer is positioned on the side of the circuit structure layer far away from the substrate. The light transmittance of the planarization layer is less than or equal to 10%. The light emitting structure layer is positioned on one side of the flat layer far away from the circuit structure layer. The light emitting structure layer includes a light emitting layer. The light-emitting layer includes a plurality of effective light-emitting portions, and an orthographic projection of one effective light-emitting portion on the base layer falls within a range in which one filter portion is orthographic projected on the base layer. The packaging layer is positioned on one side of the light-emitting structure layer far away from the flat layer.

In some embodiments, the display substrate further includes a substrate, a circuit structure layer, a planarization layer, a light emitting structure layer, and an encapsulation layer. The circuit structure layer is positioned on one side of the substrate. The flat layer is positioned on the side of the circuit structure layer far away from the substrate. The light emitting structure layer is positioned on one side of the flat layer far away from the circuit structure layer. The light emitting structure layer includes a pixel defining layer and a light emitting layer. The pixel defining layer has a third opening, the light emitting layer includes a plurality of effective light emitting portions, one effective light emitting portion is located in one third opening, and an orthographic projection of one effective light emitting portion on the base layer falls within a range of the orthographic projection of one light filtering portion on the base layer. Wherein the light transmittance of the pixel defining layer is less than or equal to 10%. The packaging layer is positioned on one side of the light-emitting structure layer far away from the flat layer.

The light adjusting structure, the preparation method of the light adjusting structure and the display panel provided by the disclosure have the following beneficial effects:

the embodiment of the present disclosure provides a light adjusting structure, through setting up the marginal portion that filler covered filter portion kept away from stratum basale side surface, set up filler and filter portion and keep away from the marginal portion overlap joint of stratum basale side surface promptly for filler can fill in the clearance between a plurality of filter portions, avoids appearing the gap between filler and the filter portion, leads to the reflection ray to jet out via the gap between filler and the filter portion, improves light adjusting structure's reliability.

Set up the shading pattern and be located the one side that the stratum basale was kept away from to the filling portion, not only can play the effect of sheltering from reflection ray, still avoided the shading pattern to cause the influence to the contact between filtering portion and the stratum basale, make the filtering portion be close to the surface (also be income plain noodles) of stratum basale one side and can laminate mutually with the stratum basale, thereby improve the planarization that filtering portion kept away from the surface (also be the play plain noodles) of stratum basale one side, make filtering portion can be for leveling or approximate smooth membranous layer structure.

Therefore, the refraction effect of the light on the light-emitting surface can be reduced, the light is prevented from being gathered in the central area of the light-emitting surface, the brightness of the central area of the light-emitting surface is the same as or approximately the same as that of the edge area, the brightness uniformity of the light-filtering part is improved, namely the brightness uniformity of each color sub-pixel of the display panel is improved, and the display effect of the display panel is improved.

The method for manufacturing the light modulation structure provided by the embodiment of the disclosure is used for manufacturing the light modulation structure, and therefore, all the beneficial effects are achieved, and the details are not repeated herein.

The display panel provided by the embodiment of the disclosure includes the light modulation structure, so that all the above beneficial effects are achieved, and details are not described herein.

Drawings

In order to more clearly illustrate the technical solutions in the present disclosure, the drawings needed to be used in some embodiments of the present disclosure will be briefly described below, and it is apparent that the drawings in the following description are only drawings of some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art according to the drawings. Furthermore, the drawings in the following description may be regarded as schematic diagrams, and do not limit the actual size of products, the actual flow of methods, the actual timing of signals, and the like, involved in the embodiments of the present disclosure.

FIG. 1 is a block diagram of a display panel according to some embodiments;

FIG. 2 is a block diagram of a display substrate according to some embodiments;

fig. 3 is a structural view of a light emitting structure layer according to some embodiments;

FIG. 4 is a structural diagram of a light emitting structure layer according to further embodiments;

FIG. 5 is a block diagram of a display panel according to other embodiments;

FIG. 6 is a block diagram of a display panel according to yet further embodiments;

FIG. 7 is a block diagram of a filter portion according to some embodiments;

fig. 8 is a structural view of a light-filtering part and a light-shielding pattern according to some embodiments;

FIG. 9 is a block diagram of a display panel according to further embodiments of the present disclosure;

FIG. 10 is a block diagram of a display panel according to further embodiments of the present disclosure;

FIG. 11 is a block diagram of a display panel according to further embodiments of the present disclosure;

FIG. 12 is a block diagram of a display panel according to further embodiments of the present disclosure;

FIG. 13 is a block diagram of a display panel according to further embodiments of the present disclosure;

FIG. 14 is a block diagram of a shading pattern according to some embodiments;

FIG. 15 is a block diagram of a shading pattern according to further embodiments;

FIG. 16 is a block diagram of a display panel according to still further embodiments;

FIG. 17 is a position diagram of a projection according to some embodiments;

FIG. 18 is a position diagram of a projection according to further embodiments;

FIG. 19 is a block diagram of a display panel according to still further embodiments of the present disclosure;

FIG. 20 is a block diagram of a display panel according to further embodiments of the present disclosure;

FIG. 21 is a block diagram of a display panel according to further embodiments of the present disclosure;

FIG. 22 is a block diagram of a display panel according to further embodiments of the present disclosure;

FIG. 23 is a block diagram of a display panel according to further embodiments of the present disclosure;

FIG. 24 is a flow chart of steps in a method of fabricating a light modulating structure according to some embodiments of the present disclosure;

fig. 25 is a block diagram of an electronic device according to some embodiments of the present disclosure.

Detailed Description

Technical solutions in some embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided by the present disclosure belong to the protection scope of the present disclosure.

Unless the context requires otherwise, throughout the description and the claims, the term "comprise" and its other forms, such as the third person's singular form "comprising" and the present participle form "comprising" are to be interpreted in an open, inclusive sense, i.e. as "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be included in any suitable manner in any one or more embodiments or examples.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present disclosure, "a plurality" means two or more unless otherwise specified.

In describing some embodiments, the expression "connected" and its derivatives may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more elements are in direct physical contact with each other. The embodiments disclosed herein are not necessarily limited to the contents herein.

As used herein, "approximate" includes the stated value as well as an average value that is within an acceptable deviation range for the particular value, as determined by one of ordinary skill in the art in view of the measurement in question and the error associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

As used herein, "parallel" or "perpendicular" includes the stated case and cases that approximate the stated case to within an acceptable range of deviation as determined by one of ordinary skill in the art in view of the measurement in question and the error associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximately parallel, where an acceptable deviation from approximately parallel may be, for example, within 5 °; "perpendicular" includes absolute perpendicular and approximately perpendicular, where an acceptable deviation from approximately perpendicular may also be within 5 °, for example.

It will be understood that when a layer or element is referred to as being "on" another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may also be present.

Example embodiments are described herein with reference to cross-sectional and/or plan views as idealized example figures. In the drawings, the thickness of layers and regions are exaggerated for clarity. Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, the exemplary embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of the exemplary embodiments.

Fig. 1 is a block diagram of a display panel 200 according to some embodiments.

As shown in fig. 1, an embodiment of the present disclosure provides a display panel 200, and the display panel 200 is used for displaying an image. It is understood that the display panel 200 may display still images such as pictures or photos, and may display moving images such as videos or game screens.

In some examples, the display panel 200 is any one of an Organic Light-Emitting Diode (OLED) display or a Quantum dot Light-Emitting Diode (QLED) display.

In some examples, the display panel 200 is square, circular, oval, or other irregular shape, etc., which improves the applicability of the display panel 200. It is to be understood that the shape of the display panel 200 is not further limited by the embodiments of the disclosure, and the structure of the display panel 200 is illustrated below.

In some embodiments, as shown in FIG. 1, the display panel 200 includes a display substrate 210 and a light modulating structure 100. The display substrate 210 has a display side, and light is emitted through the display side of the display substrate 210.

In some examples, the display substrate 210 is any one of an OLED display substrate, a Mini LED (Mini Light Emitting Diode, Chinese name: sub-millimeter Light Emitting Diode) display substrate, or a Micro LED (Micro Light Emitting Diode) display substrate.

It can be understood that the Mini LED display substrate, that is, the size of the LED chips is greater than or equal to 50 μm and less than 300 μm, and the distance between the LED chips ranges from 0.5mm to 1.2 mm. The size of the Micro LED display substrate, namely the LED chips, is smaller than 50 mu m, and the distance between the LED chips is smaller than 0.05 mm.

The light-modulating structure 100 is located on the display side of the display substrate 210, and light emitted from the display substrate 210 can be irradiated to the light-modulating structure 100. The light modulation structure 100 is used for filtering light and the like, so that the display panel 200 can realize an image display function.

The embodiment of the disclosure takes the display substrate 210 as an OLED display substrate as an example, and illustrates the structure of the display substrate 210.

Fig. 2 is a block diagram of a display substrate 210 according to some embodiments.

As shown in fig. 2, the display substrate 210 includes a substrate 212, a circuit structure layer 213, a planarization layer 214, a light emitting structure layer 215, and an encapsulation layer 211.

In some examples, the substrate 212 is a flexible material such that the display substrate 210 can be bent, thereby enabling the display panel 200 to implement a curved display. In other examples, substrate 212 is a rigid material.

For example, the substrate 212 may be made of any one of Polyimide (PI), Polycarbonate (PC) or polyvinyl chloride (PVC).

The circuit structure layer 213 is disposed on one side of the substrate 212, and in some examples, a plurality of pixel driving circuits are disposed in the circuit structure layer 213 and electrically connected to the light emitting structure layer 215 for driving the light emitting structure layer 215 to emit light.

In some examples, each pixel driving circuit includes a Thin Film Transistor (TFT) and a capacitor to realize a driving function for the light emitting structure layer 215.

The planarization layer 214 is located on a side of the circuit structure layer 213 away from the substrate 212, and it is understood that the surface of the planarization layer 214 is planar or approximately planar on the side away from the circuit structure layer 213. In some examples, the planarization layer 214 is an organic material.

Fig. 3 is a structural view of the light emitting structure layer 215 according to some embodiments.

As shown in fig. 2, the light emitting structure layer 215 is located on a side of the planarization layer 214 away from the circuit structure layer 213. Referring to fig. 3, the light emitting structure layer 215 will be described by way of example.

In some embodiments, as shown in fig. 3, the light emitting structure layer 215 includes a light emitting layer 2151. The light-emitting layer 2151 includes a plurality of effective light-emitting portions 2152, and the effective light-emitting portions 2152 may be provided at intervals. It is understood that the effective light emitting portion 2152 is used to emit light.

In some examples, the light emitting layer 2151 may include only a plurality of effective light emitting portions 2152, i.e., as shown in fig. 3. In other examples, the light-emitting layer 2151 may have an integral structure, that is, one portion of the light-emitting layer 2152 may be formed by a plurality of effective light-emitting portions 2152, and the other portion may connect the plurality of effective light-emitting portions 2152 together to form an integral structure.

In some examples, the active light emitting portion 2152 includes an electroluminescent material. It is understood that electroluminescence refers to a phenomenon in which an organic semiconductor material is driven by an electric field to form excitons through carrier injection, transport, electron and hole combination, and then radiative recombination leads to light emission.

In some examples, the shape of the effective light emitting portion 2152 may be a square, a circle, an irregular polygon, or the like. The shapes of the effective light emitting portions 2152 may be the same or different.

In some examples, multiple effective light emitting portions 2152 are each used to emit white light. In other examples, some of the plurality of effective light emitting portions 2152 are used to emit red light, another portion of the effective light emitting portions 2152 are used to emit green light, and another portion of the effective light emitting portions 2152 are used to emit blue light.

Illustratively, different electroluminescent materials may be selected so that the effective light emitting portion 2152 is capable of emitting different colors of light.

It is to be understood that the number of the red light-emitting effective light-emitting portions 2152, the green light-emitting effective light-emitting portions 2152, and the blue light-emitting effective light-emitting portions 2152 may be the same or different.

In some examples, the red, green, and blue light-emitting effective light-emitting

portions

2152, 2152 may be arranged in a mixed array such that red, green, and blue light of different intensities can be obtained by controlling the light-emitting intensities of the different effective light-emitting portions 2152. Mixing the red light, the green light and the blue light with different intensities can enable the display panel 200 to display a color image.

In some examples, as shown in fig. 3, the light emitting structure layer 215 further includes an anode layer AND a cathode layer CTD. The anode layer AND is located on a side of the planarization layer 214 away from the circuit structure layer 213, the plurality of effective light emitting sections 2152 are located on a side of the anode layer AND away from the planarization layer 214, AND the cathode layer CTD is located on a side of the plurality of effective light emitting sections 2152 away from the anode layer AND.

As described above, the plurality of pixel driving circuits in the circuit structure layer 213 can drive the light emitting structure layer 215 to emit light. In some examples, one pixel driving circuit is electrically connected to one effective light emitting portion 2152 through the anode layer AND, so that each pixel driving circuit can provide a driving current to each effective light emitting portion 2152 through the anode layer AND, that is, the effective light emitting portions 2152 emit light independently, thereby reducing mutual interference between the effective light emitting portions 2152 AND improving the display effect of the display substrate 210.

It can be understood that the light emission luminance of the effective light emitting portion 2152 can be adjusted by adjusting the magnitude of the drive current supplied from the pixel drive circuit to the effective light emitting portion 2152.

In some examples, the anode layer AND is a metal material, such as copper or silver. The cathode layer CTD is made of a transparent material, such as transparent Indium Tin Oxide (ITO) or transparent Indium Zinc Oxide (IZO), so that light emitted by the effective light emitting portion 2152 can be emitted through the cathode layer CTD, that is, the display substrate 210 is a top light emitting display substrate.

In other examples, the anode layer AND is made of a transparent material, such as ITO or IZO, AND the cathode layer CTD is made of a metal material, such as copper or silver, so that the light emitted from the effective light emitting portion 2152 can be emitted through the anode layer AND, in this case, the display substrate 210 is a bottom emission display substrate.

In still other examples, the anode layer AND the cathode layer CTD are both made of transparent material, such as ITO or IZO, so that the light emitted by the effective light emitting portion 2152 can be emitted through the anode layer AND the cathode layer CTD, i.e., the display substrate 210 is a dual-sided light emitting display substrate.

In some examples, at least one of a Hole Injection Layer (HIL), a Hole Transport Layer (HTL), AND an Electron Blocking Layer (EBL) is disposed between the anode Layer AND the effective light emitting portion 2152 in a direction from the anode Layer AND to the effective light emitting portion 2152. At least one of an Electron Injection Layer (EIL), an Electron Transport Layer (ETL) and a Hole Blocking Layer (HBL) is disposed between the cathode Layer CTD and the effective light emitting portion 2152 in a direction from the cathode Layer CTD to the effective light emitting portion 2152, thereby improving the light emitting reliability of the effective light emitting portion 2152.

Fig. 4 is a structural view of the light emitting structure layer 215 according to further embodiments. Next, referring to fig. 4, the light emitting structure layer 215 will be illustrated.

As is apparent from the above description, the plurality of effective light emitting portions 2152 are provided at intervals between the anode layer AND the cathode layer CTD. In other embodiments, as shown in FIG. 4, the light emitting structure Layer 215 further includes a Pixel Defining Layer 2153 (hereinafter, referred to as a Pixel Defining Layer, PDL). The pixel definition layer 2153 is located between the anode layer AND the cathode layer CTD. In some examples, the pixel defining layer 2153 is an organic material.

As shown in fig. 4, the pixel defining layer 2153 has third openings 2154, and it is understood that the number of the third openings 2154 is the same as the number of the effective light emitting portions 2152, and one effective light emitting portion 2152 is located in one third opening 2154 as shown in fig. 3.

It is to be understood that the pixel definition layer 2153 can serve as a stopper for the effective light emitting part 2252 by providing an effective light emitting part 2152 in a third opening 2154, thereby preventing the effective light emitting part 2152 from shifting. In addition, the pixel defining layer 2153 can separate the effective light-emitting portions 2152, thereby further reducing the mutual interference between the effective light-emitting portions 2152 and improving the display effect of the display substrate 210.

As shown in fig. 2, the encapsulation layer 211 of the display substrate 210 is located on a side of the light emitting structure layer 215 away from the planarization layer 214. It can be understood that the encapsulation layer 211 serves to encapsulate and protect the light emitting structure layer 215, and to extend the lifespan of the light emitting structure layer 215.

In some examples, the encapsulation layer 211 is an organic material. In other examples, the encapsulation layer 211 includes two inorganic film layers and one organic film layer, and the organic film layer is located between the two inorganic film layers which are spaced apart.

As can be seen from the above, at least one of the anode layer AND the cathode layer CTD is a transparent material, so that the light emitted from the effective light emitting portion 2152 can be emitted through at least one of the anode layer AND the cathode layer CTD. Some embodiments of the disclosure take the anode layer AND as a metal material, the cathode layer CTD as a transparent material, the encapsulation layer 211 as a transparent material, AND the light emitted by the effective light emitting portion 2152 is emitted outward through the cathode layer CTD AND the encapsulation layer 211.

It will be appreciated that light emitted by the active light emitter 2152 is emitted through the cathode layer CTD and the encapsulation layer 211 such that the side of the encapsulation layer 211 remote from the substrate 212 is the display side of the display substrate 210. The light modulating structure 100 is located on the display side of the display substrate 210, as shown in fig. 1, that is, the light modulating structure 100 is located on the side of the package layer 211 away from the substrate 212.

Fig. 5 is a block diagram of a display panel 200 according to further embodiments. FIG. 6 is a block diagram of a display panel 200 according to still further embodiments. Referring now to fig. 5 and 6, a light conditioning structure 100 is illustrated.

In some embodiments, as shown in fig. 5, the light modulating structure 100 includes a substrate layer 110 and a plurality of optical filters 120.

It is understood that the substrate layer 110 is made of a transparent material to prevent the substrate layer 110 from blocking the light emitted from the effective light emitting portion 2152, so that the light can be irradiated to the light adjusting structure 100. Illustratively, the base layer 110 may be a transparent organic material.

In some embodiments, as shown in fig. 5, the encapsulation layer 211 is reused as the base layer 110 of the light modulation structure 100, that is, the encapsulation layer 211 of the display substrate 210 and the base layer 110 of the light modulation structure 100 are in the same film structure, which simplifies the structure of the display panel 200 and reduces the cost of the display panel 200.

In some examples, the structure in which the Encapsulation layer 211 of the display substrate 210 is multiplexed as the base layer 110 of the light modulation structure 100 is referred to as a Color filter On Encapsulation (Color filter On Encapsulation).

In other embodiments, as shown in fig. 6, the base layer 110 and the encapsulation layer 211 may also be different film structures, and the base layer 110 is located on a side of the encapsulation layer 211 away from the substrate 212.

It is understood that the filter 120 serves to filter light. In some examples, the filter 120 is an organic material.

As described above, the light-emitting layer 2151 includes a plurality of effective light-emitting portions 2152. It can be understood that the number of effective light emitting portions 2152 is the same as the number of filter portions 120. As shown in fig. 5, the orthographic projection of one effective light-emitting portion 2152 on the substrate layer 110 falls within the orthographic projection range of one optical filter portion 120 on the substrate layer 110, that is, the setting position of one effective light-emitting portion 2152 corresponds to the setting position of one optical filter portion 120, and the orthographic projection area of one effective light-emitting portion 2152 on the substrate layer 110 is smaller than the orthographic projection area of one optical filter portion 120 on the substrate layer 110, so that the light emitted by the effective light-emitting portion 2152 can be emitted after being filtered by the optical filter portion 120, thereby preventing the light from being directly emitted without being filtered by the optical filter portion 120, and improving the display effect of the display panel 200.

In some examples, one effective light emitting portion 2152 and one filter portion 120 provided corresponding to the effective light emitting portion 2152 may be referred to as one sub-pixel. It is understood that the display panel 200 includes a plurality of sub-pixels of different colors.

In some examples, a portion of the plurality of optical filter portions 120 is used for filtering red light, another portion of the optical filter portions 120 is used for filtering green light, and another portion of the optical filter portions 120 is used for filtering blue light, i.e. red light, filtered light and blue light can be respectively emitted out of the light adjusting structure 100.

In some examples, when a part of the effective light emitting parts 2152 among the plurality of effective light emitting parts 2152 is used to emit red light, another part of the effective light emitting parts 2152 is used to emit green light, and another part of the effective light emitting parts 2152 is used to emit blue light, the effective light emitting part 2152 emitting red light may be provided corresponding to the position of the filter part 120 filtering red light. An effective light emitting part 2152 for emitting green light is provided corresponding to the position of the filter part 120 for filtering green light. An effective light emitting portion 2152 emitting blue light is provided corresponding to the position of the filter portion 120 filtering blue light. In this way, the red light, the green light, and the blue light can be emitted through the corresponding filter 120.

As shown in fig. 1, the light adjusting structure 100 further includes a light shielding pattern 140, and it is understood that the light shielding pattern 140 is used for shielding light. In some examples, the material of the light blocking pattern 140 may be a black organic material to play a role of blocking light. For example, a black organic material may be formed by adding carbon powder, graphite, or the like to a transparent organic material.

Referring to fig. 1, a positional relationship among the base layer 110, the plurality of optical filters 120, and the light blocking pattern 140 in some implementations is illustrated.

In some implementations, as shown in fig. 1, the light blocking pattern 140 is located on a side of the base layer 110 away from the substrate 212. The light-shielding pattern 140 has a plurality of through holes, and the through holes penetrate through the light-shielding pattern 140 along a direction from the light-shielding pattern 140 to the substrate layer 110. One filter portion 120 is located in one through hole so that a plurality of filter portions 120 can be arranged at intervals.

It is understood that a part of the light emitted from the effective light emitting portion 2152 can be irradiated between the adjacent two optical filter portions 120 by the reflection of the circuit structure layer 213 or the anode layer AND. Therefore, one of the optical filter portions 120 is disposed in one of the through holes, so that the light shielding pattern 140 can be disposed between two adjacent optical filter portions 120, thereby shielding the reflected light irradiated between two adjacent optical filter portions 120.

For example, as shown by the light ray a in fig. 1, when a part of the light emitted from the effective light emitting portion 2152 is irradiated between two adjacent light filters 120 under the reflection action of the circuit structure layer 213, the part of the light can be blocked by the light blocking pattern 140, so that the intensity of the reflected light emitted between two adjacent light filters 120 is reduced, the influence of the reflected light on the light emitted from the light filters 120 is reduced, and the display effect of the display panel 200 is improved.

In some implementations, as shown in fig. 1, an edge of the light filtering portion 120 close to a side surface of the substrate layer 110 is overlapped with an edge of the light shielding pattern 140 far from a side surface of the substrate layer 110, so as to prevent a gap from occurring between the light shielding pattern 140 and the light filtering portion 120, which causes the reflected light to be emitted through the gap between the light shielding pattern 140 and the light filtering portion 120, and further improve a shielding effect of the light shielding pattern 140 on the reflected light.

Compared with the mode of shielding the reflected light by the polarizer, the light adjusting structure 100 is used for shielding the reflected light, so that high color gamut, low power consumption and stronger controllability can be realized. Moreover, the light modulation structure 100 is convenient to integrate with other film structures (e.g., an in-screen antenna, an off-screen camera, a touch layer, or an off-screen fingerprint, etc.), which is beneficial to reducing the thickness of the display panel 200.

Fig. 7 is a structural view of the optical filter portion 120 according to some embodiments. Fig. 8 is a structural view of the light filtering part 120 and the light blocking pattern 140 according to some embodiments.

The inventors of the present disclosure have found that the above implementation has the following technical problems.

The edge of the surface of the filter portion 120 close to the substrate layer 110 is overlapped with the edge of the surface of the light-shielding pattern 140 away from the substrate layer 110, so that the edge of the surface of the filter portion 120 close to the substrate layer 110 cannot be attached to the substrate layer 110, as shown in fig. 7, and the surface of the filter portion 120 away from the substrate layer 110 is bent toward the substrate layer 110.

In some examples, as shown in fig. 8, a surface of the optical filter 120 close to the substrate layer 110 is referred to as a light incident surface 122, and a surface of the optical filter 120 away from the substrate layer 110 is referred to as a light emitting surface 126. It can be understood that the light emitted by the effective light emitting portion 2152 is irradiated to the filter portion 120 through the light incident surface 122 and emitted through the light emitting surface 126.

As shown by the arrow in fig. 8, when the light irradiates the light-emitting surface 126 through the light-incident surface 122 of the optical filter portion 120, the light-emitting surface 126 is bent toward the substrate layer 110, so that the light is refracted at the light-emitting surface 126 and is focused on the central area of the light-emitting surface 126.

Thus, the brightness of the central area of the light-emitting surface 126 is greater than the brightness of the edge area of the light-emitting surface 126, which causes the brightness of the light-filtering portion 120 to be non-uniform, that is, the brightness of each color sub-pixel of the display panel 200 to be non-uniform, thereby affecting the display effect of the display panel 200.

Fig. 9 is a block diagram of a display panel 200 according to still further embodiments of the present disclosure. Fig. 10 is a block diagram of a display panel 200 according to still further embodiments of the present disclosure. Fig. 11 is a block diagram of a display panel 200 according to further embodiments of the present disclosure. Fig. 12 is a block diagram of a display panel 200 according to still further embodiments of the present disclosure.

In order to solve the above technical problem, an embodiment of the present disclosure provides a light modulation structure 100 including a substrate layer 110, a plurality of light filters 120, a filling portion 130, and a light shielding pattern 140.

It is to be understood that the above embodiments of the present disclosure have exemplified the functions, materials, and the like of the base layer 110, the light filter 120, and the light shielding pattern 140, and also exemplified the positional relationship between the light filter 120 and the effective light emitting 2152, the relationship between the base layer 110 and the encapsulation layer 211, and the like, and are not described again herein.

Referring to fig. 9 to 12, a positional relationship among the base layer 110, the plurality of optical filters 120, the filling part 130, and the light blocking pattern 140 is exemplified below in some embodiments of the present disclosure.

As shown in fig. 5, the plurality of optical filters 120 are located on one side of the base layer 110, and it is understood that the plurality of optical filters 120 are located on one side of the base layer 110 away from the substrate 212. The plurality of optical filter portions 120 are disposed at intervals such that a gap exists between the plurality of optical filter portions 120. In some examples, the intervals between the plurality of optical filter portions 120 may be the same or different.

In some examples, as shown in fig. 9, the filter part 120 includes a red filter part 120R, a green filter part 120G, and a blue filter part 120B, and the red filter part 120R, the green filter part 120G, and the blue filter part 120B are arranged in a mixed array such that the display panel 200 can display a color image. It is understood that the arrangement of the red filter portion 120R, the green filter portion 120G and the blue filter portion 120B is not further limited by the embodiments of the disclosure.

As shown in fig. 10, the filler 130 is located in the gap between the plurality of optical filter portions 120, and as shown in fig. 9, the filler 130 is also located around the entire plurality of optical filter portions 120. It should be understood that the entirety of the plurality of optical filters 120, that is, the plurality of optical filters 120 are regarded as a whole, and the outermost optical filter 120 among the plurality of optical filters 120 is regarded as an edge of the whole. The filler 130 is located around the entire plurality of optical filters 120, and as shown in fig. 9, the filler 130 can surround the edges of the entire optical filters 120.

It is understood that the filler 130 is disposed in the gap between the plurality of optical filter portions 120 and around the entirety of the plurality of optical filter portions 120 so that the filler 130 can surround any one of the optical filter portions 120. In some examples, the filler 130 is attached to an outer surface of each of the optical filters 120, so that the filler 130 can be filled in gaps between the plurality of optical filters 120.

As shown in fig. 10, the filling portion 130 covers an edge portion of a side surface of the at least one optical filter portion 120 away from the substrate layer 110, that is, the filling portion 130 can overlap with the edge portion of the side surface of the optical filter portion 120 away from the substrate layer 110.

It can be understood that the edge portion of the side surface of the filter 120 away from the substrate layer 110 is the edge portion of the light emitting surface 126. The shape and area of the "edge portion" of the light emitting surface 126 are not further limited by the embodiments of the present disclosure. The shape and area of the edge portions of the different light emitting surfaces 126 may be the same or different.

In some examples, the filling part 130 covers an edge portion of a surface of any one of the optical filters 120 away from the substrate layer 110.

In some examples, as shown in fig. 10, the thickness H1 of the filling part 130 is greater than the thickness H2 of the optical filter part 120, so that the filling part 130 can overlap with an edge portion of a surface of the optical filter part 120 on a side away from the base layer 110. Moreover, since the thickness H1 of the filling portion 130 is large, even if the filling portion 130 overlaps with the edge portion of the surface of the filter portion 120 on the side away from the substrate layer 110, the influence on the flatness of the surface of the filling portion 130 on the side away from the substrate layer 110 is small, so that the surface of the filling portion 130 on the side away from the substrate layer 110 can be a planar or approximately planar structure, that is, the filling portion 130 can be a flat or approximately flat film structure.

It can be understood that, by disposing the filling portion 130 to cover the edge portion of the surface of the optical filter portion 120 away from the substrate layer 110, that is, disposing the filling portion 130 to overlap with the edge portion of the surface of the optical filter portion 120 away from the substrate layer 110, the filling portion 130 can be filled in the gaps between the plurality of optical filter portions 120, so as to prevent the gap from occurring between the filling portion 130 and the optical filter portion 120, which causes the reflected light to be emitted through the gap between the filling portion 130 and the optical filter portion 120, thereby improving the reliability of the light adjusting structure 100.

In some examples, the filling part 130 is a transparent organic material. For example, the filling part 130 may be transparent acryl, phenolic resin, epoxy resin, or the like.

As shown in fig. 11, the light shielding pattern 140 is located on a side of the filling portion 130 away from the base layer 110, and the light shielding pattern 140 may function to shield (e.g., absorb) the reflected light.

Illustratively, as shown in fig. 11 and 12, the light blocking pattern 140 covers a surface of the filling part 130 on a side away from the base layer 110.

Here, the light-shielding pattern 140 may be directly disposed on the surface of the filling portion 130 on the side away from the base layer 110, or another film structure may be disposed between the light-shielding pattern 140 and the filling portion 130.

For example, as shown by a light ray d in fig. 11, after the reflected light rays are irradiated to the filling part 130 through the gaps between the plurality of optical filter parts 120, the reflected light rays can be shielded by the light shielding pattern 140, so that the intensity of the reflected light rays emitted through the gaps between the plurality of optical filter parts 120 is reduced, the influence of the reflected light rays on the light rays emitted through the optical filter parts 120 is reduced, and the display effect of the display panel 200 is improved.

It is understood that the filling portion 130 is a flat or approximately flat film structure, and the light shielding pattern 140 is located on a surface of the filling portion 130 on a side away from the base layer 110, so that the light shielding pattern 140 can also be a flat or approximately flat film structure.

It can be understood that, the light-shielding pattern 140 is disposed on the side of the filling portion 130 away from the substrate layer 110, so that the light-shielding pattern 140 is prevented from affecting the contact between the optical filter portion 120 and the substrate layer 110, and the surface of the optical filter portion 120 close to the substrate layer 110 (i.e., the light incident surface 122) can be attached to the substrate layer 110, thereby improving the flatness of the surface of the optical filter portion 120 away from the substrate layer 110 (i.e., the light emergent surface 126), and enabling the optical filter portion 120 to be a flat or approximately flat film structure.

Therefore, the refraction of the light on the light emitting surface 126 can be reduced, and the light is prevented from being concentrated on the central area of the light emitting surface 126, so that the brightness of the central area of the light emitting surface 126 is the same as or approximately the same as the brightness of the edge area, thereby improving the brightness uniformity of the optical filter 120, that is, the brightness uniformity of each color sub-pixel of the display panel 200, and improving the display effect of the display panel 200.

In some examples, experiments prove that the light modulation structure 100 is configured such that the ratio of the intensity of the reflected light irradiated to the outside of the light modulation structure 100 to the total intensity of the reflected light can be less than 5%, thereby further reducing the intensity of the reflected light irradiated to the outside of the light modulation structure 100 and improving the reliability of the light modulation structure 100.

As can be seen from the above, the surface of the filter portion 120 close to the base layer 110 is the light incident surface 122, and as shown in fig. 11, the light incident surface 122 is in contact with the base layer 110. In some embodiments, the filter 120 further includes a first inclined surface 124. One end of the first inclined surface 124 is connected to the light incident surface 122, and the other end extends in a direction away from the light incident surface 122. A first included angle α is formed between the first inclined surface 124 and the light incident surface 122, and the first included angle α is an obtuse angle.

It can be understood that the first inclined surface 124 surrounds the light incident surface 122. The first included angle α between the first inclined surface 124 and the light incident surface 122 is an obtuse angle, that is, the first inclined surface 124 extends in a direction away from the center of the light incident surface 122 and gradually inclines.

It will be appreciated that the first included angle α is greater than 90 ° and less than 180 °. The first included angles α of the different optical filter portions 120 may have the same value or different values. In some examples, the first included angle α may be 95 °, 105 °, 125 °, 140 °, 150 °, 165 °, or the like.

In some examples, the shape of the filter 120 in a longitudinal cross section (a cross section perpendicular to the substrate 212) is a trapezoid, an upper base of the trapezoid is the light incident surface 122, a lower base of the trapezoid is the light emitting surface 126, and a waist of the trapezoid is the first inclined surface 124. It will be appreciated that the upper base of the trapezoid is parallel to the lower base and the length of the upper base is less than the length of the lower base.

In other examples, the shape of the filter 120 in the longitudinal section may be other irregular shapes, and the like. It is to be understood that the plurality of optical filter portions 120 may have the same shape in the longitudinal section or may have different shapes.

The optical refractive index of the filler 130 is smaller than that of the optical filter portion 120, and it is understood that the optical refractive indices of the optical filter portions 120 may be the same or different. When the optical refractive indices of the plurality of optical filter portions 120 are different, the optical refractive index of the filling portion 130 is smaller than that of any one of the optical filter portions 120.

From the total reflection condition, when light is irradiated from the optically denser medium (i.e., medium with larger optical refractive index) to the optically thinner medium (i.e., medium with smaller optical refractive index), if the incident angle θ is larger than arcsin (n2/n1) (where n2 is the optical refractive index of the optically thinner medium, n1 is the optical refractive index of the optically denser medium, and n2 < n1), the light can be totally reflected at the contact surface between the optically denser medium and the optically thinner medium.

In this way, the filling part 130 is located in the gap between the plurality of optical filter parts 120, and the optical refractive index of the filling part 130 is smaller than that of the optical filter parts 120, so that a part of the light can be totally reflected at the contact surface between the optical filter parts 120 and the filling part 130, that is, a part of the light can be totally reflected at the first inclined surface 124.

As can be seen from the above, the first included angle α between the first inclined surface 124 and the light incident surface 122 is an obtuse angle, as shown by the light ray e in fig. 11, so that the light ray irradiated to the first inclined surface 124 is easier to be emitted out of the light adjusting structure 100 under the action of total reflection, thereby improving the utilization rate of the light ray, improving the brightness of the sub-pixels displaying the colors of the display panel 200, and reducing the power consumption of the display panel 200.

Further, the light is totally reflected by the first inclined surface 124, and the intensity of the light irradiated to another filter portion 120 through the first inclined surface 124 can be reduced, thereby reducing crosstalk generated between two adjacent filter portions 120 and improving display reliability of the display panel 200.

In some embodiments, the orthographic projection of the first inclined surface 124 on the base layer 110 falls within a range where the light blocking pattern 140 is orthographic projected on the base layer 110.

It can be understood that the orthographic projection of the first inclined surface 124 on the substrate layer 110 falls within the range of the orthographic projection of the light shielding pattern 140 on the substrate layer 110, that is, the orthographic projection of the light shielding pattern 140 on the substrate layer 110, and can cover the orthographic projection of the first inclined surface 124 on the substrate layer 110.

With this arrangement, the shielding effect of the light shielding pattern 140 on the reflected light is improved, the intensity of the reflected light emitted from the light modulation structure 100 is further reduced, the influence of the reflected light on the light emitted from the light filtering portion 120 is reduced, and the display effect of the display panel 200 is improved.

As shown in fig. 1, the inventors of the present disclosure also found that, in some implementations, a part of light emitted by the effective light emitting portion 2152 can be emitted through the light filtering portion 120 (e.g., light b in fig. 1), but another part of light can be blocked by the light blocking pattern 140 (e.g., light c in fig. 1), so that the utilization rate of light is affected, the brightness of each color sub-pixel of the display panel 200 is reduced, and the power consumption of the display panel 200 is increased.

In addition, as shown by the light ray b in fig. 1, a part of the light emitted by the effective light emitting part 2152 cannot exit in a direction perpendicular or approximately perpendicular to the light exit surface 126, which results in a decrease in the brightness in the direction perpendicular or approximately perpendicular to the light exit surface 126, that is, in the direction perpendicular or approximately perpendicular to the display panel 200.

When the display panel 200 is used, the user usually observes along a direction perpendicular or approximately perpendicular to the display panel 200, thereby affecting the display effect of the display panel 200.

Fig. 13 is a block diagram of a display panel 200 according to still further embodiments of the present disclosure. Fig. 14 is a structural view of a light blocking pattern 140 according to some embodiments. Fig. 15 is a block diagram of a light blocking pattern 140 according to further embodiments. FIG. 16 is a block diagram of a display panel 200 according to still further embodiments. FIG. 17 is a position diagram of a projection according to some embodiments.

In order to solve the above technical problem, as shown in fig. 13, in other embodiments, the light blocking pattern 140 includes a main body portion 142 and an annular portion 144.

As shown in fig. 14, the main body 142 has a plurality of first openings 1421. It can be understood that the first opening 1421 penetrates the light shielding pattern 140 along the direction from the light shielding pattern 140 to the filling portion 130. In some examples, the shape of the first opening 1421 may be rectangular, circular, elliptical, or other irregular polygonal shapes, among others. The plurality of first openings 1421 may have the same shape and area, or may have different shapes and areas.

As shown in fig. 15, the annular portion 144 is located within the first opening 1421. In some examples, the annular portion 144 may be a rectangular ring, a circular ring, or other irregular ring shape, etc. The plurality of annular portions 144 may be identical in shape or different in shape.

The annular portion 144 and the body portion 142 define a light transmitting slot 146 therebetween, and it is understood that the edge of the first opening 142 and the outer edge of the annular portion 144 enclose the light transmitting slot 146. As shown in fig. 15, the light-transmitting groove 146 is annular in shape in cross section (a section parallel to the direction of the substrate 212).

As shown in fig. 15, a second opening 1441 is formed in the annular portion 144, and as shown in fig. 16, the second opening 1441 exposes the optical filter portion 120. It is understood that the second opening 1441 penetrates the light shielding pattern 140 in a direction from the light shielding pattern 140 to the filling part 130, so that the second opening 1441 can expose the optical filter part 120.

In some examples, the shape of the second opening 1441 can be rectangular, circular, elliptical, or other irregular polygonal shapes, etc. The plurality of second openings 1441 may be the same or different in shape and area. It is understood that the number of the second openings 1441 is the same as the number of the first openings 1421. The second opening 1441 may be the same shape as the first opening 1421, or may be different.

As shown in fig. 17, at least a portion of the orthographic projection of the first inclined surface 124 on the base layer 110 is located between the orthographic projection of the main body portion 142 on the base layer 110 and the orthographic projection of the annular portion 144 on the base layer 110, that is, the position where the first inclined surface 124 is disposed corresponds to the position where the light-transmitting groove 146 is disposed.

Thus, after a part of the light emitted from the effective light emitting part 2152 is irradiated onto the first inclined surface 124, the light can be emitted through the light transmitting groove 146 in a direction perpendicular or approximately perpendicular to the light emitting surface 126 (for example, the light g in fig. 13) by total reflection, and another part of the light can be directly emitted through the light transmitting groove 146 (for example, the light f in fig. 13).

That is, by providing the light transmission groove 146 between the annular portion 144 and the main body portion 142, on one hand, effective utilization of the light irradiated to the first inclined surface 126 is achieved, so that a part of the light irradiated to the first inclined surface 126 can be emitted in a direction perpendicular or approximately perpendicular to the light emitting surface 126, the brightness in the direction perpendicular or approximately perpendicular to the light emitting surface 126 is increased, the brightness of each color sub-pixel is improved, the power consumption of the display panel 200 is reduced, and the display effect of the display panel 200 is improved.

On the other hand, by providing the light-transmitting groove 146, the intensity of light irradiated to other directions (directions other than the direction perpendicular or approximately perpendicular to the light-emitting surface 126) can be increased, so that the light-emitting angle is increased, the brightness of the display panel 200 in all directions is improved, the display effect of the display panel 200 is further improved, and the power consumption of the display panel 200 is reduced.

In some examples, as shown in fig. 17, the orthographic projection of the first inclined surface 124 on the substrate layer 110 is located between the orthographic projection of the body portion 142 on the substrate layer 110 and the orthographic projection of the ring portion 144 on the substrate layer 110.

In some embodiments, as shown in fig. 13, the light transmissive groove 146 has a first port 152 and a second port 154. The second port 154 is closer to the substrate layer 110 than the first port 152. It can be understood that, as shown in fig. 13, the light is irradiated to the light-transmitting groove 146 through the second port 154 and is emitted through the first port 152.

FIG. 18 is a position diagram of a projection according to further embodiments. Fig. 19 is a block diagram of a display panel 200 according to still further embodiments of the present disclosure.

As shown in fig. 18, the first port 152 has a first edge L1 and a second edge L2, and an orthographic projection of the first edge L1 on the substrate layer 110 and an orthographic projection of the second edge L2 on the substrate layer 110 enclose a first region P1. The second port 154 has a third edge N1 and a fourth edge N2, an orthographic projection of the third edge N1 on the substrate layer 110, and the fourth edge N2 on the substrate layer 110 all falling within the first region P1.

It is understood that the orthographic projection of the third edge N1 on the substrate layer 110 and the fourth edge N2 on the substrate layer 110 both fall within the first region P1, i.e. the position of the second port 154 corresponds to the position of the first port 152, and the area of the second port 154 is smaller than the area of the first port 152.

Thus, the light irradiated to the light-transmitting groove 146 is easier to be emitted through the first port 152, the light utilization rate is further improved, the brightness of each color sub-pixel is increased, and the power consumption of the display panel 200 is reduced.

In some examples, as shown in fig. 13, the light-transmitting groove 146 is trapezoidal in shape in longitudinal section. The lower base of the trapezoid is a first port 152 and the upper base of the trapezoid is a second port 154. It can be understood that the upper base of the trapezoid is parallel to the lower base, and the length of the upper base of the trapezoid is smaller than that of the lower base of the trapezoid.

In other examples, the shape of the light-transmitting groove 146 in the longitudinal section may be irregular. It is understood that the shape of the different light-transmitting grooves 146 in the longitudinal section may be the same or different.

In some embodiments, as shown in fig. 18, an orthographic projection of the edge of the second port 154 on the substrate layer 110 circumscribes the second region P2. The orthographic projection of the first inclined surface 124 on the base layer 110 falls within the second region P2.

It will be appreciated that the second port 154 has a third edge N1 and a fourth edge N2, the orthographic projection of the third edge N1 on the substrate layer 110, and the orthographic projection of the fourth edge N2 on the substrate layer 110 enclose a second region P2.

As shown in fig. 18, an orthographic projection of the first inclined surface 124 on the substrate layer 110 falls within the second region P2, that is, an arrangement position of the first inclined surface 124 corresponds to an arrangement position of the second port 154, and an area of the orthographic projection of the first inclined surface 124 on the substrate layer 110 is smaller than or equal to an area of the second region P2.

In some examples, as shown in fig. 19, the width D1 of the orthographic projection of the first inclined surface 124 on the base layer 110 is less than or equal to the width D2 of the second port 154, such that the orthographic projection of the first inclined surface 124 on the base layer 110 can fall within the second region P2.

With such an arrangement, the light irradiated to the first inclined surface 124 is more easily irradiated to the light-transmitting groove 146 through the second port 154 and then emitted through the first port 152, so that the light utilization rate is further improved, the brightness of each color sub-pixel is increased, and the power consumption of the display panel 200 is reduced.

As can be seen from the above, the display substrate 210 further includes a planarization layer 214. In some embodiments, as shown in fig. 19, the light transmittance of the planarization layer 214 is less than or equal to 10%.

It can be understood that the transmittance of the planar layer 214 is less than or equal to 10%, i.e., the transmittance of the planar layer 214 ranges from 0 to 10%.

The light transmittance of the planarization layer 214 is set to be less than or equal to 10%, so that the planarization layer 214 can block light reflected by the circuit structure layer 213. For example, as shown by a light ray q in fig. 19, a part of the light emitted from the effective light emitting portion 2152 is reflected by the circuit structure layer 213, and is irradiated to the planarization layer 214 and blocked by the planarization layer 214.

With this arrangement, the intensity of the reflected light irradiated to the filling part 130 is reduced. Therefore, even if the light-transmitting groove 146 is formed between the main body portion 142 and the annular portion 144, the reflected light is difficult to emit through the light-transmitting groove 146, and the intensity of the reflected light emitted through the light-transmitting groove 146 is reduced, so that the influence of the reflected light on the light emitted through the light-filtering portion 120 is reduced, the display panel 200 can realize integral black display, and the display effect of the display panel 200 is improved.

In some examples, the light transmittance of the planarization layer 214 can range from 0% to 8%, 0% to 5%, 0% to 3%, 0% to 1%, or 0% to 0.5%.

In some examples, the planarization layer 214 is a black organic material to enable light transmittance of the planarization layer 214 to be less than or equal to 10%. For example, a black organic material may be formed by adding carbon powder, graphite, or the like to a transparent organic material.

Fig. 20 is a block diagram of a display panel 200 according to still further embodiments of the present disclosure.

As can be seen from the above, the display substrate 210 includes a pixel defining layer 2153. In other embodiments, as shown in fig. 20, the light transmittance of the pixel defining layer 2153 is less than or equal to 10%.

It can be understood that the light transmittance of the pixel defining layer 2153 is less than or equal to 10%, i.e., the light transmittance of the pixel defining layer 2153 ranges from 0% to 10%.

The light transmittance of the pixel defining layer 2153 is set to be less than or equal to 10% so that the pixel defining layer 2153 can block light reflected by the circuit structure layer 213. For example, as shown by a light ray m in fig. 20, a part of the light emitted from the effective light emitting portion 2152 is reflected by the circuit structure layer 213, and is irradiated to the pixel defining layer 2153 and blocked by the pixel defining layer 2153.

With this arrangement, the intensity of the reflected light irradiated to the filling part 130 is reduced. Therefore, even if the light transmission groove 146 is formed between the main body 142 and the annular portion 144, the reflected light is difficult to be emitted through the light transmission groove 146, and the intensity of the reflected light emitted through the light transmission groove 146 is reduced, so that the influence of the reflected light on the light emitted through the light filter portion 120 is reduced, the display panel 200 can realize integral black display, and the display effect of the display panel 200 is improved.

In some examples, the light transmittance of the pixel defining layer 2153 can range from 0% to 8%, 0% to 5%, 0% to 3%, 0% to 1%, or 0% to 0.5%.

In some examples, the pixel defining layer 2153 is a black organic material such that the light transmittance of the pixel defining layer 2153 can be less than or equal to 10%. For example, a black organic material may be formed by adding carbon powder, graphite, or the like to a transparent organic material.

It is understood that the light transmittance of the planarization layer 214 and the light transmittance of the pixel defining layer 2153 may be the same or different.

In still other examples, the light transmittance of the planarization layer 214 is less than or equal to 10% and the light transmittance of the pixel defining layer 2153 is less than or equal to 10%, which further reduces the intensity of the reflected light irradiated to the filling portion 130, reduces the intensity of the reflected light emitted through the light-transmitting groove 146, and improves the display effect of the display panel 200.

In some examples, the light transmittance of the planarization layer 214 and the light transmittance of the pixel definition layer 2153 are both less than or equal to 1%.

As can be seen from the above, the surface of the filter 120 away from the base layer 110 is the light emitting surface 126. As shown in fig. 11, the light emitting surface 126 is connected to an end of the first inclined surface 124 away from the light incident surface 122.

As shown in fig. 20, the filling part 130 includes a second inclined surface 132. One end of the second inclined surface 132 contacts the light emitting surface 126, and the other end extends in a direction away from the light emitting surface 126. And the second inclined surface 132 is gradually inclined toward the first direction. The first direction is a direction away from the center line H of the optical filter portion 120. The central line H of the optical filter portion 120 is located at the center of the optical filter portion 120 and perpendicular to the light emitting surface 126.

It is understood that the center line H of the filter portion 120 is a virtual straight line. The central line H of the optical filter portion 120 is located at the center or approximately at the center of each optical filter portion 120 and is perpendicular to the light emitting surface 126.

As shown in fig. 20, one end of the second inclined surface 132 contacts the light emitting surface 126, and the other end extends in a direction away from the light emitting surface 126 and gradually inclines in a direction away from the center line H of the optical filter portion 120, so that a second included angle β is formed between the second inclined surface 132 and the center area of the light emitting surface 126, and the second included angle β is an obtuse angle, that is, the second included angle β is greater than 90 ° and smaller than 180 °.

With this arrangement, when the light is irradiated to the second inclined surface 132, a part of the light can be emitted in a direction perpendicular or approximately perpendicular to the light emitting surface 126 (for example, the light ray n in fig. 20) under the reflection action of the second inclined surface 132, so as to increase the brightness in the direction perpendicular or approximately perpendicular to the light emitting surface 126, that is, in the direction perpendicular or approximately perpendicular to the display panel 200, thereby improving the display effect of the display panel 200, and also reducing the power consumption of the display panel 200.

In some examples, the values of the different second included angles β may be the same or different. For example, the second included angle β may be 95 °, 105 °, 125 °, 140 °, 150 °, 165 °, or the like.

Fig. 21 is a block diagram of a display panel 200 according to further embodiments of the present disclosure. Fig. 22 is a block diagram of a display panel 200 according to still further embodiments of the present disclosure. Fig. 23 is a block diagram of a display panel 200 according to still further embodiments of the present disclosure.

In some embodiments, as shown in FIG. 21, the light modulating structure 100 also includes a color filter film 172. The color filter 172 is disposed on a side of the substrate layer 110 adjacent to the light-shielding pattern 140. The orthographic projection of the color filter 172 on the base layer 110 overlaps at least a portion of the orthographic projection of the light-shielding pattern 140 on the base layer 110.

It will be appreciated that the color filter film 172 serves to filter light. In some examples, the color filter film 172 may be used to filter any one of red, green, and blue light, i.e., to enable any one of red, green, and blue light to pass through the color filter film 172.

The orthographic projection of the color filter 172 on the base layer 110 overlaps at least a portion of the orthographic projection of the light-shielding pattern 140 on the base layer 110. For example, the orthographic projection of the color filter 172 on the substrate layer 110 may partially overlap or completely overlap with the orthographic projection of the light-shielding pattern 140 on the substrate layer 110. In some examples, the orthographic projection of the color filter film 172 on the base layer 110 falls within the range of the orthographic projection of the light blocking pattern 140 on the base layer 110.

As is apparent from the above description, among the plurality of effective light-emitting portions 2152, a part of the effective light-emitting portions 2152 is used for emitting red light, another part of the effective light-emitting portions 2152 is used for emitting green light, and another part of the effective light-emitting portions 2152 is used for emitting blue light. The color filter film 172 may be used to filter any one of red light, green light, and blue light, that is, three of the red light emitting effective light emitting portion 2152, the green light emitting effective light emitting portion 2152, and the blue light emitting effective light emitting portion 2152, wherein one of the emitted lights can pass through the color filter film 172, and the other two emitted lights cannot pass through the color filter film 172.

The color filter 172 is disposed on a side of the substrate layer 110 close to the light-shielding pattern 140, and an orthogonal projection of the color filter 172 on the substrate layer 110 overlaps at least a portion of an orthogonal projection of the light-shielding pattern 140 on the substrate layer 110, so that the color filter 172 can filter the reflected light.

Thus, when the light emitted from the effective light-emitting portion 2152 is reflected by the circuit structure layer 213 or the anode layer AND is irradiated onto the color filter film 172, only one color of the reflected light (i.e., the same color as the color filter film 172) can pass through the color filter film 172, AND the other two colors of the reflected light cannot pass through the color filter film 172, so that the intensity of the reflected light exiting from the light modulation structure 100 can be further reduced, AND the influence of the reflected light on the light exiting through the light filter portion 120 can be reduced.

In some embodiments, the color filter 172 can expose the red filter 120R, the green filter 120G and the blue filter 120B, so as to prevent the color filter 172 from blocking light filtered by the plurality of filters 120.

In other embodiments, the color filter 172 can expose the filter portion 120 of a different color. That is, when the color filter 172 is a red color filter, the green filter 120G and the blue filter 120B can be exposed, and the color filter 172 can prevent light filtered by the filter 120 having a different color from the green filter.

In some embodiments, the color filter 172 can also expose the light-transmitting groove 146, so as to further reduce the blocking of the color filter 172 to the light filtered by the optical filter portion 120, so that the light filtered by the optical filter portion 120 can be emitted through the light-transmitting groove 146.

The color filter 172 is located on a side of the substrate layer 110 close to the light-shielding pattern 140, and it is understood that the color filter 172 may be located between the substrate layer 110 and the filling portion 130, between the filling portion 130 and the light-shielding pattern 140, or on a side of the light-shielding pattern 140 away from the filling portion 130. Next, referring to fig. 21 to 23, a positional relationship among the color filter 172, the filling part 130, and the light shielding pattern 140 will be described.

In some examples, as shown in fig. 21, the color filter film 172 is located between the base layer 110 and the filler 130. Illustratively, the color filter 172 is disposed in the gaps between the plurality of optical filters 120 and around the entire plurality of optical filters 120, and the filling part 130 is disposed on the side of the color filter 172 away from the base layer 110. In some examples, the filling portion 130 may be attached to a surface of the color filter 172 away from the base layer 110.

As shown in fig. 21, the thickness H2 of the filter 120 is larger than the thickness H3 of the color filter 172. With this arrangement, the filling portion 130 can be filled in the gaps between the plurality of light-filtering portions 120, so that a part of the light emitted from the effective light-emitting portion 2152 can be totally reflected on the contact surface between the light-filtering portion 120 and the filling portion 130 (i.e., a part of the first inclined surface 124), and can be emitted through the light-transmitting groove 146 (e.g., the light s in fig. 21), thereby improving the utilization rate of the light.

The color filter film 172 is disposed between the base layer 110 and the filling portion 130, and as shown by the ray r in fig. 21, even if the reflected ray passes through the pixel defining layer 2153 (or the planarization layer 214) having a low light transmittance and is irradiated to the color filter film 172, the reflected ray is filtered by the color filter film 172. Therefore, only the reflected light with the same color as the color filter 172 can pass through the color filter 172, and the other two colors of reflected light cannot pass through the color filter 172, so as to reduce the intensity of the reflected light irradiated to the light-shielding pattern 140, further reduce the intensity of the reflected light exiting the light-adjusting structure 100, and reduce the influence of the reflected light on the light exiting through the light-filtering portion 120.

The following illustrates a method of manufacturing the color filter film 172 in some examples of the present disclosure.

For example, an initial color filter film may be formed on the substrate layer 110 on a side away from the substrate 212, and a plurality of receiving holes may be formed at intervals on the initial color filter film to expose the substrate layer 110, and the color filter film 172 may be prepared. The plurality of optical filter portions 120 (including the plurality of red optical filter portions 120R, the plurality of green optical filter portions 120G, and the plurality of blue optical filter portions 120B) are formed in the plurality of receiving holes, and the thickness H2 of each optical filter portion 120 is larger than the thickness H3 of the color filter film 172, so that the color filter film 172 can be positioned in the gaps of the plurality of optical filter portions 120 and around the entirety of the optical filter portion 120.

In an example where the color filter film 172 is a red color filter film, after an initial color filter film is formed, a partial region of the initial color filter film may be thinned to prepare the patterned red filter 120R. A plurality of receiving holes are formed at intervals on the area where the initial color filter is thinned to expose the base layer 110, and a color filter 172 is prepared. A plurality of the filter portions 120 (including a plurality of green filter portions 120G and a plurality of blue filter portions 120B) are formed in the plurality of receiving holes, and a thickness H2 of each filter portion 120 is larger than a thickness H3 of the color filter film 172, so that the color filter film 172 can be positioned in the gaps of the plurality of filter portions 120 and around the entirety of the filter portion 120.

In other examples, as shown in fig. 22, the color filter 172 is located between the filling part 130 and the light blocking pattern 140, and as shown by a ray x in fig. 22, even if the reflected ray passes through the pixel defining layer 2153 (or the planarization layer 214) with low transmittance and irradiates the color filter 172, the reflected ray is filtered by the color filter 172. Therefore, only the reflected light with the same color as the color filter 172 can pass through the color filter 172, and the other two colors of reflected light cannot pass through the color filter 172, so as to reduce the intensity of the reflected light irradiated to the light shielding pattern 140, further reduce the intensity of the reflected light exiting the light adjusting structure 100, and reduce the influence of the reflected light on the light exiting through the light filter 120.

In still other examples, as shown in fig. 23, the color filter 172 is located on a side of the light-shielding pattern 140 away from the filling portion 130, as shown by the light ray y in fig. 23, even if the reflected light ray passes through the pixel defining layer 2153 (or the planarization layer 214) with lower light transmittance and the light-shielding pattern 140, and is filtered by the color filter 172 after being irradiated to the color filter 172. Therefore, only the reflected light with the same color as the color filter 172 can pass through the color filter 172 and irradiate the light modulation structure 100, but the other two colors of reflected light cannot pass through the color filter 172, so that the intensity of the reflected light exiting the light modulation structure 100 is reduced, and the influence of the reflected light on the light exiting through the light filter 120 is further reduced.

In some embodiments, as shown in FIG. 20, the light modulating structure 100 also includes a capping layer 160. The cover layer 160 is disposed on a side of the plurality of optical filters 120, the filling part 130 and the light blocking pattern 140 away from the base layer 110. The cover layer 160 covers the plurality of optical filter portions 120, the filling portion 130, and the light blocking pattern 140, and the optical refractive index of the cover layer 160 is greater than or equal to that of the optical filter portions 120.

It is understood that the cover layer 160 can protect the plurality of optical filters 120, the filling part 130 and the light blocking pattern 140.

In some examples, the cover layer 160 is a transparent organic material to avoid the cover layer 160 from blocking light, so that the light can exit the light modulating structure 100 through the cover layer 160.

It is to be understood that when the optical refractive index is different between the plurality of optical filter portions 120, the refractive index of the cover layer 160 is greater than or equal to that of any one of the optical filter portions 120. With such an arrangement, the light emitted from the light-filtering portion 120 is prevented from being totally reflected on the light-emitting surface 126 (i.e., the contact surface between the light-filtering portion 120 and the covering layer 160), so that the light is more easily irradiated to the covering layer 160 through the light-emitting surface 126, thereby improving the light utilization rate and reducing the power consumption of the display panel 200.

As can be seen from the above, the optical refractive index of any one of the optical filter portions 120 is greater than the optical refractive index of the filler portion 130, and thus the optical refractive index of the cover layer 160 is set to be greater than the optical refractive index of any one of the optical filter portions 120, so that the optical refractive index of the cover layer 160 can also be greater than the optical refractive index of the filler portion 130.

As shown by the light ray n in fig. 20, since the light refractive index of the covering layer 160 is greater than the light refractive index of the filling portion 130, a part of the light irradiated to the contact surface between the covering layer 160 and the filling portion 130 can be totally reflected, that is, a part of the light irradiated to the second inclined surface 132 can be totally reflected, so as to further improve the intensity of the light irradiated out of the light adjusting structure 100, thereby improving the light utilization rate, increasing the brightness of the sub-pixels of each color, and reducing the power consumption of the display panel 200.

FIG. 24 is a flow chart of steps in a method of fabricating a light modulating structure according to some embodiments of the present disclosure.

In another aspect, embodiments of the present disclosure provide a method for manufacturing a light modulation structure, which is used to manufacture the light modulation structure 100. As shown in fig. 24, the method of manufacturing the light modulation structure includes:

in step S101, a plurality of light filters are formed on one side of a base layer. The plurality of filter portions are arranged at intervals.

Step S102, forming a filling part. The filler is located in the gap between the plurality of optical filter portions and around the entire plurality of optical filter portions. And the filling part covers the edge part of the surface of the at least one optical filter part far away from the substrate layer.

Step S103, a light shielding pattern is formed. The shading pattern is positioned on the surface of the filling part, which is far away from the base layer side.

The method for manufacturing the light modulation structure provided by the embodiment of the disclosure is used for manufacturing the light modulation structure 100, and therefore, all the above beneficial effects are achieved, and are not described herein again.

In some examples, a photolithography process may be used to form a plurality of spaced apart filters 120 on one side of the base layer. The gaps between the optical filter parts 120 and the entire periphery of the plurality of optical filter parts are filled to form the filling parts 130. It is understood that, in order to enable the filling portion 130 to fill the gap between the plurality of optical filters 120 and avoid a gap between the filling portion 130 and the optical filters 120, the filling portion 130 may be disposed to cover an edge portion of a side surface of at least one optical filter 120 away from the substrate layer 110.

A light blocking pattern 140 is formed on a side of the filling part 130 away from the base layer 110. In some examples, the first and

second openings

1421 and 1441 may be formed on the light shielding pattern 140 using a photolithography process after the light shielding pattern 140 is formed.

It can be understood that the method for manufacturing the light modulation structure provided by the embodiment of the disclosure is simple in process, and reduces the production cost of the light modulation structure 100.

In some embodiments, the method of making a light modulating structure further comprises:

forming a covering layer. The covering layer is arranged on one side, far away from the basal layer, of the plurality of light filtering parts, the filling part and the shading pattern. The cover layer covers the plurality of optical filter portions, the filling portion and the light shielding pattern, and the optical refractive index of the cover layer is greater than or equal to that of the optical filter portions.

For example, as shown by the light ray n in fig. 20, since the light refractive index of the covering layer 160 is greater than the light refractive index of the filling portion 130, a part of the light irradiated to the contact surface between the covering layer 160 and the filling portion 130 can be totally reflected, that is, a part of the light irradiated to the second inclined surface 132 can be totally reflected, so as to further improve the intensity of the light irradiated out of the light modulation structure 100, thereby improving the light utilization rate, increasing the brightness of the sub-pixels of each color, and reducing the power consumption of the display panel 200.

Fig. 25 is a block diagram of an electronic device 300 according to some embodiments of the present disclosure.

In another aspect, an embodiment of the present disclosure provides an electronic device 300, which includes the display panel 200 described above to implement an image display function, and therefore, all the above advantages are provided, and are not described herein again.

In some examples, the electronic device 300 may be a mobile phone, a tablet computer, a television, a smart wearable product (e.g., a smart watch, a smart bracelet), a virtual reality terminal device, an augmented reality terminal device, or the like, the electronic device 300 having an image display function.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art will appreciate that changes or substitutions within the technical scope of the present disclosure are included in the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A light modulating structure, comprising:

a base layer;

a plurality of optical filters arranged on one side of the substrate layer, wherein the optical filters are arranged at intervals;

a filler located in a gap between the plurality of optical filters and around the entire plurality of optical filters, the filler covering an edge portion of a surface of at least one optical filter on a side away from the base layer; and the number of the first and second groups,

and the shading pattern is positioned on one side of the filling part, which is far away from the basal layer.

2. The light conditioning structure of claim 1, wherein an optical refractive index of the filler portion is smaller than an optical refractive index of the filter portion; the filter portion includes:

a light incident surface in contact with the base layer;

one end of the first inclined plane is connected with the light incident surface, and the other end of the first inclined plane extends in the direction far away from the light incident surface; a first included angle is formed between the first inclined plane and the light incident surface and is an obtuse angle.

3. The light conditioning structure of claim 2, wherein an orthographic projection of the first inclined surface on the base layer falls within a range of an orthographic projection of the light blocking pattern on the base layer.

4. The light conditioning structure of claim 2, wherein the light blocking pattern comprises:

a body portion having a plurality of first openings;

an annular portion located within the first opening; a light transmission groove is formed between the annular part and the main body part; a second opening is formed in the annular part, and the second opening exposes out of the light filtering part;

wherein at least a part of an orthographic projection of the first inclined surface on the base layer is located between an orthographic projection of the main body portion on the base layer and an orthographic projection of the annular portion on the base layer.

5. The light conditioning structure of claim 4,

the optically transmissive groove having a first port and a second port, the second port being closer to the base layer than the first port; the orthographic projection of the edge of the first port on the substrate layer is defined to form a first area, and the orthographic projection of the edge of the second port on the substrate layer falls into the first area.

6. The light conditioning structure of claim 5, wherein an orthographic projection of an edge of the second port on the base layer encloses a second region, and an orthographic projection of the first inclined surface on the base layer falls within the second region.

7. The light conditioning structure of claim 2, wherein the light filter further includes a light exiting surface connected to an end of the first inclined surface away from the light incident surface;

the filling part includes:

one end of the second inclined surface is in contact with the light-emitting surface, and the other end of the second inclined surface extends in the direction far away from the light-emitting surface and gradually inclines towards the first direction; the first direction is a direction far away from the center line of the optical filter part, and the center line of the optical filter part is positioned at the center of the optical filter part and is perpendicular to the light emergent surface.

8. The light conditioning structure of any of claims 1-7, further comprising:

the color filtering film is positioned on one side of the substrate layer close to the shading pattern; and the orthographic projection of the color filter film on the substrate layer is overlapped with at least part of the orthographic projection of the light-shielding pattern on the substrate layer.

9. The light conditioning structure of any of claims 1-7, further comprising:

a cover layer located on a side of the plurality of light-filtering parts, the filling part and the light-shielding pattern far away from the substrate layer; the cover layer covers the plurality of optical filter portions, the filling portion and the light shielding pattern, and the optical refractive index of the cover layer is greater than or equal to that of the optical filter portions.

10. A method of making a light modulating structure, comprising:

forming a plurality of optical filters on one side of the substrate layer; the plurality of light filtering parts are arranged at intervals;

forming a filling part; the filler is positioned in the gap between the plurality of optical filters and around the whole plurality of optical filters, and the filler covers the edge part of one side surface of at least one optical filter far away from the substrate layer;

forming a light shielding pattern; the shading pattern is positioned on the surface of the filling part, which is far away from the base layer side.

11. A display panel, comprising:

a display substrate; and the combination of (a) and (b),

the light modulating structure of any of claims 1-9, the light modulating structure being located on a display side of the display substrate.

12. The display panel according to claim 11, wherein the display substrate comprises:

an encapsulation layer multiplexed as the base layer of the light modulating structure.

13. The display panel of claim 11, wherein the display substrate further comprises:

a substrate;

the circuit structure layer is positioned on one side of the substrate;

the flat layer is positioned on one side of the circuit structure layer, which is far away from the substrate; the light transmittance of the flat layer is less than or equal to 10%;

the light emitting structure layer is positioned on one side of the flat layer, which is far away from the circuit structure layer; the light-emitting structure layer comprises a light-emitting layer, the light-emitting layer comprises a plurality of effective light-emitting parts, and the orthographic projection of one effective light-emitting part on the substrate layer falls within the range of the orthographic projection of one light-filtering part on the substrate layer; and (c) a second step of,

and the packaging layer is positioned on one side of the light-emitting structure layer, which is far away from the flat layer.

14. The display panel of claim 11, wherein the display substrate further comprises:

a substrate;

the circuit structure layer is positioned on one side of the substrate;

the flat layer is positioned on one side of the circuit structure layer, which is far away from the substrate;

the light emitting structure layer is positioned on one side of the flat layer, which is far away from the circuit structure layer; the light emitting structure layer comprises a pixel defining layer and a light emitting layer; the pixel defining layer is provided with a third opening, the light-emitting layer comprises a plurality of effective light-emitting parts, one effective light-emitting part is positioned in one third opening, and the orthographic projection of one effective light-emitting part on the substrate layer falls within the range of the orthographic projection of one light-filtering part on the substrate layer; wherein the light transmittance of the pixel defining layer is less than or equal to 10%; and the number of the first and second groups,