CN115101560A

CN115101560A - Display panel and display device

Info

Publication number: CN115101560A
Application number: CN202210724581.8A
Authority: CN
Inventors: 邓贤柱; 张萌; 杜凌霄; 邵阳
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-09-23

Abstract

The application provides a display panel and display device, includes: a light emitting region and a non-light emitting region; the display panel comprises a light emergent side and a backlight side which are oppositely arranged along the thickness direction; the display panel comprises a touch layer and a filter layer; the light-shielding layer is positioned in the touch layer and is positioned in the non-light-emitting area; the color resistor is positioned on the light emergent side of the touch layer, and at least part of the color resistor is positioned in the light emitting area. The light shield layer is arranged in the touch layer, so that the distance between the light emitting layer and the light shield layer in the display panel along the thickness direction can be reduced, the outward diffusion degree is reduced when light emitted by the light emitting layer reaches the light shield layer, the light quantity emitted from the opening in the light shield layer is increased, the display visual angle and the display brightness of the display panel and the display device are ensured, and the influence on the light emitting effect of the display panel and the display device is reduced. Therefore, the display panel and the display device provided by the application can improve the light emitting effect of the display panel and the display device.

Description

Display panel and display device

Technical Field

The application relates to the technical field of display panels, in particular to a display panel and a display device.

Background

Organic Light-Emitting diodes (OLEDs), OLEDs have the characteristics of active Light emission, high contrast, ultra-Light and thinness, low temperature resistance, high response speed, low power consumption, wide viewing angle, strong shock resistance and the like, and thus are increasingly used.

In the related art, the display panel includes a light emitting region and a non-light emitting region located at the periphery of the light emitting region. The display panel comprises a touch layer and a filter layer located on the touch layer, wherein the filter layer comprises a color resistance layer and a shading layer arranged on the periphery of the color resistance layer in a surrounding mode, the color resistance layer is located in a light emitting area, and the shading layer is located in a non-light emitting area.

However, the light-emitting effect of the display panel is poor.

Disclosure of Invention

In view of at least one of the above technical problems, embodiments of the present application provide a display panel and a display device, which can improve the light extraction effect of the display panel and the display device.

In order to achieve the above object, the embodiments of the present application provide the following technical solutions:

a first aspect of an embodiment of the present application provides a display panel, including: a light emitting region and a non-light emitting region; the display panel comprises a light emergent side and a backlight side which are oppositely arranged along the thickness direction;

the display panel comprises a touch layer and a filter layer; the light-shielding layer is positioned in the touch layer and is positioned in the non-light-emitting area; the color resistor is positioned on the light-emitting side of the touch layer, and at least part of the color resistor is positioned in the light-emitting area.

In the display panel of the embodiment of the application, the display panel may include a light emitting region and a non-light emitting region, and the light emitting region and the non-light emitting region may be adjacently disposed; the display panel comprises a light emitting side and a backlight side which are oppositely arranged along the thickness direction. The display panel comprises a touch layer and a filter layer, wherein the filter layer is used for reducing the reflection of ambient light, so that the display effect of the display panel is improved. The filter layer includes the light shield layer, and the light shield layer is located the luminous district of non-district of sending to avoid the influence to display panel aperture ratio, have the opening in the light shield layer, the opening part does not set up the light shield layer, and the opening is at least partially located the district of sending out light. The light shield layer is arranged in the touch layer, so that the distance between the light emitting layer and the light shield layer in the display panel along the thickness direction can be reduced, the outward diffusion degree is reduced when the light emitted by the light emitting layer reaches the opening, the light quantity emitted from the opening is increased, the display visual angle and the display brightness of the display panel and the display device are ensured, and the influence on the light emitting effect of the display panel and the display device is reduced. The filter layer comprises a color resistor, the color resistor is located on the light emitting side of the touch layer, at least part of the color resistor is located in the light emitting area, and the color resistor can be used for filtering light with different colors from the color of the color resistor in ambient light.

In a possible implementation manner, the touch layer includes a first touch trace and a second touch trace, and the second touch trace is located on a light exit side of the first touch trace;

the front projection of the light shielding layer on the plane where the first touch-control wires are located can cover the first touch-control wires; and/or the orthographic projection of the light shielding layer on the plane where the second touch-control wires are located covers the second touch-control wires.

Thus, the light-shielding layer has a good antireflection effect.

In a possible implementation manner, the light shielding layer includes a first light shielding layer, and the first light shielding layer is located on a side of the first touch routing close to the backlight;

what can be realized is that the face that is close to the light-emitting side of first light-shielding layer contacts with first touch-control line.

Therefore, the reflection of the light on the touch-control wires, which is irradiated by the side of the first light-shielding layer, which deviates from the touch-control wires (the first touch-control wires and the second touch-control wires), can be reduced.

In a possible implementation manner, the light shielding layer includes a second light shielding layer, and the second light shielding layer is located on a light exit side of the second touch routing;

it can be realized that the surface of the second light shielding layer close to the backlight side is in contact with the second touch control trace.

Therefore, the reflection of the light on the touch-control wires, which is irradiated by the side of the second light-shielding layer, which deviates from the touch-control wires (the first touch-control wires and the second touch-control wires), can be reduced.

In a possible implementation manner, the light-shielding layer includes a third light-shielding layer, and the third light-shielding layer is located between the first touch trace and the second touch trace.

Therefore, the reflection of the light on the touch-control wires from the side of the third light-shielding layer away from the touch-control wires (the first touch-control wires and the second touch-control wires) can be reduced.

In a possible implementation manner, a surface of the third light shielding layer close to one side of the first touch trace is in contact with the first touch trace; or an insulating layer is arranged between the third light shielding layer and the first touch routing;

the surface of one side, close to the second touch-control wiring, of the third light-shielding layer is in contact with the second touch-control wiring; or an insulating layer is arranged between the third light shielding layer and the second touch routing.

Thus, the third light-shielding layer can be provided in many ways, and can be applied to many fields.

In a possible implementation manner, the light-shielding layer includes a fourth light-shielding layer, and the fourth light-shielding layer is located on a side wall surface of the first touch trace and/or the second touch trace.

Therefore, the fourth light shielding layer can reduce the reflection of light on the side wall surface of the touch wire.

In a possible implementation manner, at least part of the color resistor extends to the non-light-emitting region, and an orthographic projection of the color resistor located in the non-light-emitting region in a plane where the light shielding layer is located is at least partially overlapped with the light shielding layer.

Thus, the antireflection effect of the filter layer is good.

In a possible implementation manner, the color filter further includes an auxiliary color resistor, the auxiliary color resistor and the color resistor are arranged in the same layer and are located in the non-light-emitting region, and the auxiliary color resistor and part of the color resistor are integrated.

Therefore, the auxiliary color resistor and part of the color resistor form an integrated piece, and the structural stability of the integrated piece is higher.

A first aspect of embodiments of the present application provides a display device, including the display panel in the first aspect.

The display device comprises a display panel, wherein the display panel can comprise a light-emitting area and a non-light-emitting area, and the light-emitting area and the non-light-emitting area can be adjacently arranged; the display panel comprises a light emitting side and a backlight side which are oppositely arranged along the thickness direction. The display panel comprises a touch layer and a filter layer, wherein the filter layer is used for reducing the reflection of ambient light, so that the display effect of the display panel is improved. The filter layer comprises a light shielding layer, the light shielding layer is located in the non-light emitting area to avoid influence on the aperture opening ratio of the display panel, an opening is formed in the light shielding layer, the light shielding layer is not arranged at the opening, and at least part of the opening is located in the light emitting area. The light shielding layer is located in the touch layer, so that the distance between the light emitting layer and the light shielding layer in the display panel along the thickness direction can be reduced, the outward diffusion degree is reduced when light emitted by the light emitting layer reaches the opening, the light quantity emitted from the opening is increased, the display visual angle and the display brightness of the display panel and the display device are ensured, and the influence on the light emitting effect of the display panel and the display device is reduced. The filter layer comprises a color resistor, the color resistor is located on the light emitting side of the touch layer, at least part of the color resistor is located in the light emitting area, and the color resistor can be used for filtering light with different colors from the color of the color resistor in ambient light.

The construction of the present application and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a first light-shielding layer according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a second light-shielding layer according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a third light-shielding layer according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a third light-shielding layer according to an embodiment of the present disclosure;

fig. 5 is a schematic view of another structure of the third light-shielding layer according to an embodiment of the disclosure;

fig. 6 is a schematic structural view of a third light-shielding layer and a fourth light-shielding layer provided in this embodiment of the application;

fig. 7 is a schematic view of another structure of the third light-shielding layer and the fourth light-shielding layer provided in this embodiment of the application;

fig. 8 is a schematic structural view of a second light-shielding layer and a fourth light-shielding layer provided in this embodiment of the application;

fig. 9 is a schematic view of another structure of the second light-shielding layer and the fourth light-shielding layer provided in this embodiment of the application;

fig. 10 is a schematic view of another structure of the second light-shielding layer and the fourth light-shielding layer provided in this embodiment of the application;

FIG. 11 is a schematic structural diagram of a color barrier extending to a non-light-emitting region according to an embodiment of the present application;

FIG. 12 is a schematic diagram illustrating a side-wall contact structure of two adjacent sub-color resists according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a filling member disposed between two adjacent sub color resists according to an embodiment of the present application.

Description of reference numerals:

100-a display panel; 100 a-a light emitting region;

100 b-a non-light emitting region; 110-an array substrate;

120-a light emitting layer; 121-pixel layer;

122-a pixel defining layer; 130-an encapsulation layer;

140-a touch layer; 141-a first touch trace;

142-a second touch trace; 143-a first insulating layer;

144-a second insulating layer; 151-first light-shielding layer;

152-a second light-shielding layer; 153 — third light-shielding layer;

154-fourth light-shielding layer; 161-color resistance;

162-filler.

Detailed Description

In the related art, a display panel includes a light-emitting region and a non-light-emitting region adjacent to the light-emitting region. The display panel comprises a touch layer and a filter layer located on the touch layer, the filter layer comprises a color resistance layer and a light shielding layer, the color resistance layer is located in a light emitting region, the light shielding layer is located in a non-light emitting region, an opening is formed in the light shielding layer, the opening penetrates through the light shielding layer along the thickness direction, and the color resistance is contained in the opening. A light emitting layer is arranged on one side, away from the filter layer, of the touch layer, and light emitted by the light emitting layer can be emitted through the opening.

However, the light-shielding layer is located on the side of the touch-control layer away from the light-emitting layer, the touch-control layer is arranged between the light-shielding layer and the light-emitting layer, and the touch-control layer has more stacked structure layers, so that the distance between the light-shielding layer and the light-emitting layer along the thickness direction is longer. When the distance between the light-shielding layer and the light-emitting layer in the thickness direction is long, the light emitted by the light-emitting layer reaches the opening and is diffused outwards to a greater extent, and the quantity of light emitted from the opening in the light-shielding layer is reduced, so that the display viewing angle and the display brightness of the display panel and the display device are poor, and the light-emitting effect of the display panel and the display device is affected.

In view of at least one of the above technical problems, embodiments of the present application provide a display panel and a display device, where the display panel may include a light-emitting region and a non-light-emitting region, and the light-emitting region and the non-light-emitting region may be disposed adjacent to each other; the display panel comprises a light emitting side and a backlight side which are oppositely arranged along the thickness direction. The display panel comprises a touch layer and a filter layer, wherein the filter layer is used for reducing the reflection of ambient light, so that the display effect of the display panel is improved. The filter layer includes the light shield layer, and the light shield layer is located the luminous district of non-district of sending to avoid the influence to display panel aperture ratio, have the opening in the light shield layer, the opening part does not set up the light shield layer, and the opening is at least partially located the district of sending out light. The light shielding layer is located in the touch layer, so that the distance between the light emitting layer and the light shielding layer in the display panel along the thickness direction can be reduced, the outward diffusion degree is reduced when light emitted by the light emitting layer reaches the opening, the light quantity emitted from the opening is increased, the display visual angle and the display brightness of the display panel and the display device are ensured, and the influence on the light emitting effect of the display panel and the display device is reduced. The filter layer comprises a color resistor, the color resistor is located on the light emitting side of the touch layer, at least part of the color resistor is located in the light emitting area, and the color resistor can be used for filtering light with different colors from the color of the color resistor in ambient light.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The display device provided in the embodiment of the present application will be described below with reference to fig. 1 to 13.

The present embodiment provides a display device including a display panel 100. The display device may be a mobile or fixed terminal having the display panel 100, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, an intelligent bracelet, an intelligent watch, a super personal computer, and a navigator.

The Display panel 100 may be an Organic Light-Emitting Diode (OLED) Display panel, a Micro Light-Emitting Diode (Micro LED or μ LED) Display panel, a Liquid Crystal Display (LCD) Display panel, or the like.

In the embodiment of the present application, the display panel 100 is taken as an OLED display panel for example.

The following describes the display panel 100 according to an embodiment of the present application.

The present embodiment provides a display panel 100, and the display panel 100 can be applied to the display device.

The display panel 100 may include a light-emitting side and a backlight side that are oppositely disposed in a thickness direction. The light-emitting side is a side for displaying a picture, and the backlight side is the other side opposite to the light-emitting side along the thickness direction of the display panel 100.

As shown in fig. 1, the display panel 100 may include an array substrate 110 and a light emitting layer 120 on the array substrate 110. The array substrate 110 has a plurality of driving units disposed therein, the plurality of driving units may be arranged in an array, and the driving units are electrically connected to the light-emitting layer 120, and the driving units are configured to provide a driving current for the light-emitting layer 120. The driving unit may include a Thin Film Transistor (TFT) and a capacitor structure. For example, the thin film transistor may include at least one of a Metal Oxide (MO) thin film transistor and a Low Temperature Polysilicon (LTPS) thin film transistor.

The following is a description of the light-emitting layer 120 provided in the examples of the present application.

The light emitting layer 120 may include an anode layer and a cathode layer, the anode layer being positioned at a side of the cathode layer facing the array substrate 110. The anode layer may be a pixel electrode and the cathode layer may be a common electrode.

As shown in fig. 1, the light emitting layer 120 may include a pixel layer 121 and a pixel defining layer 122, the pixel layer 121 being formed of a light emitting material, the pixel layer 121 and the pixel defining layer 122 being positioned between the anode layer and the cathode layer. The pixel layer 121 may generally include a plurality of pixels arranged at intervals, the plurality of pixels may be arranged in an array, and the plurality of pixels may include, but is not limited to, a red pixel, a green pixel, and a blue pixel. In other examples, the plurality of pixels may also include a white pixel. The pixel defining layer 122 is located between two adjacent pixels, for example, the pixel defining layer 122 may be disposed around the periphery of the pixels.

The light emitting layer 120 may further include at least one of a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer, and an electron injection layer.

It is understood that the display panel 100 may include a display area for displaying a picture and a non-display area disposed adjacent to the display area. The non-display area is positioned on at least one side of the display area. For example, the non-display area may surround the periphery of the display area.

As shown in fig. 1, the display region may include a light emitting region 100a and a non-light emitting region 100b, the light emitting region 100a corresponds to a pixel, and the pixel is located in the light emitting region 100a, for example, the light emitting region 100a and the pixel may coincide; in addition, a non-light emitting region 100b is disposed between the adjacent light emitting regions 100a, the non-light emitting region 100b may be disposed around the periphery of the light emitting region 100a, and the non-light emitting region 100b may correspond to at least a portion of the pixel defining layer 122.

As shown in fig. 1, the display panel 100 may further include an encapsulation layer 130, the encapsulation layer 130 is located on a side of the light emitting layer 120 away from the array substrate 110, and the encapsulation layer 130 is used to seal the light emitting layer 120 to prevent external water and oxygen from penetrating into the light emitting layer 120 and the driving unit to damage the display panel 100.

Illustratively, the Encapsulation layer 130 may employ Thin Film Encapsulation (TFE), the TFE Encapsulation layer may include a plurality of Encapsulation sub-Film layers, and the TFE may employ an overlapping inorganic/organic/inorganic multi-layer stack structure. Wherein, the inorganic layer is used for effectively blocking water and oxygen, and the organic layer is used for buffering the stress in the inorganic layer.

As shown in fig. 1, the display panel 100 may further include a touch layer 140, the touch layer 140 is located on a side of the encapsulation layer 130 away from the array substrate 110, and the touch layer 140 is used for implementing a touch function.

For example, a buffer layer may be disposed between the touch layer 140 and the encapsulation layer 130, and the buffer layer may be formed of an inorganic material (e.g., silicon nitride, silicon oxide, etc.) or an organic material. Of course, the touch layer 140 may be directly disposed on the encapsulation layer 130 without disposing a buffer layer, thereby facilitating the light weight of the display panel 100. The touch layer 140 is directly contacted with the encapsulation layer 130 in the embodiment of the present application.

The touch layer 140 provided in the embodiments of the present application is explained below.

As shown in fig. 1, the touch layer 140 may include a first touch trace 141 and a second touch trace 142, where the second touch trace 142 is located on a side of the first touch trace 141 close to the light emitting side, that is, the second touch trace 142 is located on a side of the first touch trace 141 away from the light emitting layer 120.

In the touch layer 140, one of the first touch trace 141 and the second touch trace 142 is a bridging layer, and the other of the first touch trace 141 and the second touch trace 142 can be a touch function layer. The touch function layer may include a plurality of first touch electrodes extending in a first direction, and a plurality of second touch electrodes extending in a second direction. The first direction and the second direction are different, for example, the first direction may be a length direction of the display panel 100, and the second direction may be a width direction of the display panel 100. In the embodiment of the present application, the first touch trace 141 is taken as an example of a bridging layer for explanation.

The length, width and thickness of the embodiments are described herein for convenience of description only and are not meant to limit the dimensions in any way. For example, the length may be greater than, equal to, or less than the width.

Illustratively, one of the first touch electrode and the second touch electrode is a driving electrode, and the other of the first touch electrode and the second touch electrode is a sensing electrode. It should be noted that, although both the driving electrode and the sensing electrode are formed by the second touch trace 142, the driving electrode and the sensing electrode are insulated from each other. One of the driving electrode and the sensing electrode is a continuous and uninterrupted structure along the first direction (or the second direction), and the other of the driving electrode and the sensing electrode comprises a plurality of spaced substructures along the second direction (or the first direction) and is bridged and connected through a bridging layer.

For example, the first touch trace 141 and the second touch trace 142 may be both located in the non-light emitting region 100b, so as to avoid an influence on the aperture ratio of the display panel 100.

For example, the first touch trace 141 and the second touch trace 142 may be formed by a single conductive layer or a stacked structure of multiple conductive layers.

In some embodiments, as shown in fig. 1, the touch layer 140 may include a first insulating layer 143, and the first insulating layer 143 is located between the first touch trace 141 and the second touch trace 142 and electrically isolates the first touch trace 141 from the second touch trace 142. In addition, the touch layer 140 may further include a second insulating layer 144, and the second insulating layer 144 may be located on a side of the second touch trace 142 away from the light emitting layer 120, and may protect the first touch trace 141 and the second touch trace 142.

It is understood that a via hole (not shown) may be disposed in the first insulating layer 143 for bridging connection between the first touch trace 141 and the second touch trace 142.

In this embodiment, the filter layer may include an opacifying layer, which may be formed of a material capable of opacifying light, and may have a relatively dark color (e.g., black), and the opacifying layer may be capable of absorbing light irradiated onto the opacifying layer. The light-shielding layer has an opening therein, the opening is not provided with the light-shielding layer, and the opening is at least partially located in the light-emitting region 100a, i.e., the opening may overlap with the light-emitting region 100a or the opening may extend from the light-emitting region 100a into the non-light-emitting region 100 b. The light shielding layer is located in the touch layer 140, so that the distance between the light emitting layer 120 of the display panel 100 and the light shielding layer in the thickness direction can be reduced, the degree of outward diffusion when the light emitted by the light emitting layer 120 reaches the opening in the light shielding layer is reduced, and the quantity of light emitted from the opening is increased, so that the display viewing angle and the display brightness of the display panel 100 and the display device are ensured, and the influence on the light emitting effect of the display panel 100 and the display device is reduced. In addition, the light shielding layer also has the function of preventing light mixing between adjacent pixels.

The light-shielding layer provided in the examples of the present application will be described below.

The light-shielding layer is located in the non-light-emitting region 100b, so that the influence on the aperture ratio of the display panel 100 can be avoided. The light-shielding layer may cover a part or all of the non-light-emitting region 100 b.

For example, in the display area, the orthographic projection of the light-shielding layer on the plane where the first touch trace 141 is located may cover the first touch trace 141, and the orthographic projection of the light-shielding layer on the light-emitting layer 120 may cover the orthographic projection of the first touch trace 141 on the light-emitting layer 120, that is, the size of the light-shielding layer is greater than or equal to the size of the first touch trace 141. Therefore, the reflection of the light irradiated on the first touch trace 141 by the light shielding layer on the side away from the first touch trace 141 can be better reduced.

The plane of the first touch trace 141 is a plane where the first touch trace 141 is located, and the length extending direction and the width extending direction of the first touch trace 141 are located in the plane.

For example, in the display area, the orthographic projection of the light-shielding layer on the plane where the second touch trace 142 is located may cover the second touch trace 142, and the orthographic projection of the light-shielding layer on the light-emitting layer 120 may cover the orthographic projection of the second touch trace 142 on the light-emitting layer 120, that is, the size of the light-shielding layer is greater than or equal to the size of the second touch trace 142. Therefore, the reflection of the light on the second touch trace 142 from the side of the light shielding layer away from the second touch trace 142 can be reduced.

In the first embodiment of the light-shielding layer, as shown in fig. 1, the light-shielding layer may include a first light-shielding layer 151, where the first light-shielding layer 151 is located on a side of the first touch trace 141 close to the backlight, that is, the first light-shielding layer 151 is located on a side of the first touch trace 141 facing the light-emitting layer 120. The distance between the first touch trace 141 and the light emitting layer 120 along the thickness direction is short, so that the display viewing angle and the display brightness of the display panel 100 and the display device can be better ensured.

For example, the first light-shielding layer 151 may be directly formed on the encapsulation layer 130, that is, the first light-shielding layer 151 is in contact with the encapsulation layer 130, so that the distance between the first light-shielding layer 151 and the light-emitting layer 120 in the thickness direction can be reduced, and the display panel 100 is light and thin.

Exemplarily, a surface of the first light-shielding layer 151 close to the light-emitting side may contact the first touch wire 141, that is, the first touch wire 141 may be directly prepared on a surface of the first light-shielding layer 151 away from the light-emitting layer 120, and no other structural layer is disposed between the first touch wire 141 and the first light-shielding layer 151, which is beneficial to the light and thin of the display panel 100.

In a second embodiment of the light-shielding layer, as shown in fig. 2, the light-shielding layer may include a second light-shielding layer 152, where the second light-shielding layer 152 is located on a side of the second touch trace 142 close to the light-emitting side, that is, the second light-shielding layer 152 is located on a side of the second touch trace 142 away from the light-emitting layer 120. The second light-shielding layer 152 can better reduce the reflection of the ambient light on the second touch trace 142, and in addition, the second light-shielding layer 152 can protect the second touch trace 142 and can partially replace the second insulating layer 144, thereby being beneficial to the thinning of the display panel 100.

For example, the surface of the second light-shielding layer 152 close to the backlight side may contact the second touch trace 142, that is, the second light-shielding layer 152 may be directly prepared on the surface of the second touch trace 142 away from the light-emitting layer 120, and no other structural layer is disposed between the second touch trace 142 and the second light-shielding layer 152, which is beneficial to the lightness and thinness of the display panel 100.

In a third embodiment of the light-shielding layer, as shown in fig. 3 to 5, the light-shielding layer may include a third light-shielding layer 153, and the third light-shielding layer 153 is located between the first touch trace 141 and the second touch trace 142. The third light-shielding layer 153 can reduce reflection of light irradiated onto the first touch trace 141 and the second touch trace 142 from a region between the first touch trace 141 and the second touch trace 142, and in addition, the third light-shielding layer 153 can be used for electrically isolating the first touch trace 141 and the second touch trace 142, and can partially replace the first insulating layer 143, thereby being beneficial to thinning the display panel 100.

For example, as shown in fig. 3, a surface of the third light shielding layer 153 close to the first touch trace 141 is in contact with the first touch trace 141, and a first insulating layer 143 is disposed between the third light shielding layer 153 and the second touch trace 142. At this time, the third light-shielding layer 153 is directly prepared on the surface of the first touch trace 141 facing away from the light-emitting layer 120, which is beneficial to the lightening and thinning of the display panel 100, and in addition, the reflection of light irradiated onto the first touch trace 141 from the area between the third light-shielding layer 153 and the first touch trace 141 can be reduced.

It can be understood that, since the first touch trace 141 serves as a bridging layer, the distribution area thereof in the non-light emitting region 100b is smaller. When the third light-shielding layer 153 is prepared on the surface of the first touch wire 141 away from the light-emitting layer 120, a part of the third light-shielding layer 153 may be simultaneously prepared on the surface of the encapsulation layer 130 away from the light-emitting layer 120, so that the third light-shielding layer 153 is uniformly distributed between adjacent pixels, and the third light-shielding layer 153 has good anti-reflection and anti-light-mixing effects.

For example, as shown in fig. 4, a surface of the third light shielding layer 153 close to the second touch trace 142 contacts the second touch trace 142, and a first insulating layer 143 is disposed between the third light shielding layer 153 and the first touch trace 141. At this time, the second touch trace 142 may be directly prepared on a surface of the third light-shielding layer 153 away from the light-emitting layer 120, and the principle of the second touch trace is in contact with the third light-shielding layer 153 and the first touch trace 141, which is not described in detail.

For example, as shown in fig. 5, a surface of the third light-shielding layer 153 close to the first touch trace 141 contacts the first touch trace 141, and a surface of the third light-shielding layer 153 close to the second touch trace 142 contacts the second touch trace 142. Thus, the third light-shielding layer 153 has a large thickness, and thus can provide a good antireflection effect and a good light-mixing prevention effect. At this time, the first insulating layer 143 filled in the opening of the third light shielding layer 153 may be integrated with the second insulating layer 144, so that the first insulating layer 143 and the second insulating layer 144 may be simultaneously prepared to simplify the preparation process.

For example, the opposite sides of the third light shielding layer 153 in the thickness direction may be provided with insulating layers, that is, the third light shielding layer 153 is not in contact with the first touch trace 141 and the second touch trace 142. For example, the third light-shielding layer 153 may be disposed on a surface of the first insulating layer 143 facing away from the light-emitting layer 120, and then a third insulating layer is disposed on a surface of the third light-shielding layer 153 facing away from the light-emitting layer 120, where the third insulating layer is located between the third light-shielding layer 153 and the second touch trace 142. Here, the third insulating layer may be the same as the first insulating layer 143 or the second insulating layer 144, or the third insulating layer may be different from both the first insulating layer 143 and the second insulating layer 144.

As shown in fig. 6 to 10, the light shielding layer may include a fourth light shielding layer 154, and the fourth light shielding layer 154 may be located on a sidewall surface of the first touch trace 141; alternatively, the fourth light-shielding layer 154 may be located on the side wall surface of the second touch trace 142; alternatively, the fourth light-shielding layer 154 may be disposed on the sidewall surfaces of the first touch trace 141 and the second touch trace 142 at the same time. The fourth light-shielding layer 154 can reduce the reflection of light facing the side wall of the touch trace (the first touch trace 141 and/or the second touch trace 142) to improve the display effect of the display panel 100.

As shown in fig. 6 to 9, a fourth light-shielding layer 154 may be disposed on the sidewall surface of the first touch trace 141. The fourth light-shielding layer 154 may be provided simultaneously with one or more of the first light-shielding layer 151, the second light-shielding layer 152, and the third light-shielding layer 153. In some examples, the fourth light shielding layer 154 on the sidewall surface of the first touch trace 141 may be disposed simultaneously with the first light shielding layer 151. In other examples, as shown in fig. 6 and 7, the fourth light-shielding layer 154 on the sidewall surface of the first touch trace 141 may be disposed simultaneously with the third light-shielding layer 153. In other examples, as shown in fig. 8 and fig. 9, the fourth light-shielding layer 154 on the sidewall surface of the first touch trace 141 can be disposed simultaneously with the second light-shielding layer 152, and at least a portion of the fourth light-shielding layer 154 extends from the second light-shielding layer 152 to the sidewall surface of the first touch trace 141. At this time, the fourth light-shielding layer 154 can also cover the side wall surface of the second touch trace 142, so that the area of the touch trace covered by the fourth light-shielding layer 154 is large, and light reflection and light mixing can be well prevented.

As shown in fig. 8 to 10, a fourth light-shielding layer 154 may be disposed on the sidewall surface of the second touch trace 142. The fourth light-shielding layer 154 may be provided simultaneously with one or more of the first light-shielding layer 151, the second light-shielding layer 152, and the third light-shielding layer 153. In some examples, as shown in fig. 8 to 10, the fourth light shielding layer 154 on the sidewall surface of the second touch trace 142 may be disposed simultaneously with the second light shielding layer 152. In other examples, the fourth light-shielding layer 154 on the sidewall surface of the second touch trace 142 may be disposed simultaneously with the first light-shielding layer 151, so that the fourth light-shielding layer 154 may extend from the first light-shielding layer 151 to the sidewall surface of the second touch trace 142, and the touch trace area covered by the fourth light-shielding layer 154 is large, which may better prevent light reflection and light mixing. In other examples, the fourth light-shielding layer 154 on the sidewall surface of the second touch trace 142 may be disposed simultaneously with the third light-shielding layer 153.

It is to be understood that any one or more of the first light shielding layer 151, the second light shielding layer 152, the third light shielding layer 153, and the fourth light shielding layer 154 may be provided in the embodiments of the present application.

When the fourth light-shielding layer 154 is provided and at least one of the first light-shielding layer 151, the second light-shielding layer 152, and the third light-shielding layer 153 is provided, the fourth light-shielding layer 154 and the light-shielding layer provided at the same time may form an integral piece together, and the structural stability of the integral piece formed by the fourth light-shielding layer 154 and the light-shielding layer prepared at the same time is high. Of course, the fourth light-shielding layer 154 and the light-shielding layer provided at the same time may be separate structures.

The filter layer may comprise a color resist 161, and the color resist 161 may be used to filter light of a different color from its own color in the ambient light. The color resistor 161 may be made of an organic material, which has high flexibility and is beneficial to the bending performance of the display panel 100.

The color resists 161 provided in the embodiments of the present application are explained below.

As shown in fig. 1, the color resistor 161 is located on the light exit side of the touch layer 140, that is, the color resistor 161 is located on the side of the touch layer 140 away from the light emitting layer 120. Wherein at least a portion of the color resistor 161 may be located in the light emitting area 100 a.

The color resistor 161 may include a plurality of sub-color resistors, the sub-color resistors are arranged in a one-to-one correspondence with the pixels, and the orthographic projection of the sub-color resistors on the light emitting layer 120 covers the pixels and has the same color as the covered pixels, so as to avoid the occurrence of light mixing. The plurality of sub-color resistances may include any one or more of a red sub-color resistance, a green sub-color resistance, a blue sub-color resistance, and a white sub-color resistance. For example, the sub-color resistor corresponding to the red pixel is a red sub-color resistor, which can block the light emitted by the blue pixel and the green pixel and allow the red light emitted by the red pixel or the white pixel to pass through.

The size of the sub-color resistor is larger than or equal to the size of the pixel, and the orthographic projection of the sub-color resistor on the light-emitting layer 120 can cover the pixel. In some examples, as shown in fig. 1, the orthographic projection of the sub-color resists on the light emitting layer 120 may overlap with the pixel, and in this case, the sub-color resists are the same size as the pixel. In other examples, as shown in fig. 11, the orthographic projection of the sub-color resists on the light emitting layer 120 may cover the pixel, and there is a gap between the outer edge of the orthographic projection of the sub-color resists on the light emitting layer 120 and the outer edge of the pixel, in which case, the sub-color resists extend from the light emitting region 100a to the non-light emitting region 100b, the sub-color resists are larger than the pixel, and the amount of light emitted from the sub-color resists is increased.

It is understood that the sizes of the sub-color resistors may be the same or different. For example, the size of the partial sub-color resistance may be larger than the size of the pixel, and the size of the partial sub-color resistance may be equal to the size of the pixel; or the sizes of all the sub-color resistors are larger than the size of the pixel; alternatively, the size of all the sub-color resistances is equal to the size of the pixel.

In the embodiment where the color resists 161 extend from the light emitting region 100a to the non-light emitting region 100b, the orthographic projection of the color resists 161 located in the non-light emitting region 100b on the plane where the light shielding layer is located at least partially overlaps the light shielding layer. At this time, the orthographic projection of the color resist 161 of the non-light emitting region 100b on the light emitting layer 120 at least partially overlaps with the orthographic projection of the light shielding layer on the light emitting layer 120. Thus, the area of the color resistor 161 is larger, so that more ambient light is irradiated onto the color resistor 161, and the reflection of the ambient light can be better reduced, thereby improving the display effect of the display panel 100. In addition, it can be avoided that a part of the area between the light shielding layer and the color resistor 161 is not covered by the filter layer and is highly reflected after the process error of the light shielding layer and the color resistor 161 deviates from the predetermined position, thereby avoiding affecting the display effect of the display panel 100.

The area that cannot be covered by the filter layer is an area where there is a gap between the orthographic projection of the light shielding layer on the light-emitting layer 120 and the orthographic projection of the color resist 161 on the light-emitting layer 120, and the area corresponding to the gap is an area that is not covered by the filter layer (the color resist 161 and the light shielding layer) (if light is not covered by the filter layer, high reflection occurs if the light does not irradiate the filter layer).

In the embodiment where the color resists 161 extend from the light emitting region 100a to the non-light emitting region 100b, adjacent sub-color resists may be spaced apart from each other, as shown in fig. 11. As shown in fig. 12, the side wall surfaces of the adjacent sub-color resists can be contacted, so that no other structural layer is required to be arranged between the adjacent sub-color resists, and the preparation process can be simplified. In addition, the area of the sub-color resistor is large, and the amount of light emitted from the sub-color resistor increases.

As shown in fig. 13, in the embodiment having the space between the adjacent sub-color resists, the filling member 162 may be disposed between the adjacent sub-color resists, that is, the sub-color resists are disposed on the same layer as the filling member 162. The filling member 162 may be a net structure, the filling member 162 is located in the non-light-emitting region 100b, and the filling member 162 may be the same as or different from the sub-color resists. For example, the filling member 162 may be the same as the sub color resists of one color, and at this time, the filling member 162 may form an auxiliary color resist, the auxiliary color resist has the same color as the sub color resist, the auxiliary color resist and the sub color resist having the same color form an integral member together, and the auxiliary color resist and the sub color resist having the same color are prepared simultaneously, so that the preparation process can be simplified, and the structural stability between the auxiliary color resist and the sub color resist having the same color can be improved. The sub-color resists with the same auxiliary color resist and the same color can be prepared from the same material in the same layer.

The term "same layer and same material" in the embodiment of the present application means that the same material is used to form a base film layer in the same process, and the base film layer is patterned and/or subjected to other processing processes or not processed, so that different portions of the base film layer respectively form a plurality of structural film layers. The treatment processes of the different structural film layers formed by the basic film layer can be the same or different, and the formed different structural film layers can have the same or different thicknesses and can be on the same horizontal plane or different horizontal planes.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, comprising: a light emitting region and a non-light emitting region; the display panel comprises a light emergent side and a backlight side which are oppositely arranged along the thickness direction;

the display panel comprises a touch layer and a filter layer; the light-shielding layer is positioned in the touch layer and positioned in the non-light-emitting area; the color resistor is located on the touch layer close to the light emitting side, and at least part of the color resistor is located in the light emitting area.

2. The display panel according to claim 1, wherein the touch layer includes a first touch trace and a second touch trace, and the second touch trace is located on a side of the first touch trace close to the light exit side;

preferably, the orthographic projection of the light shielding layer on the plane where the first touch trace is located covers the first touch trace; and/or the orthographic projection of the light shielding layer on the plane where the second touch-control wires are located covers the second touch-control wires.

3. The display panel according to claim 2, wherein the light shielding layer comprises a first light shielding layer, and the first light shielding layer is located on a side, close to the backlight, of the first touch trace;

preferably, a surface of the first light shielding layer close to the light emitting side is in contact with the first touch routing.

4. The display panel according to claim 2, wherein the light-shielding layer comprises a second light-shielding layer, and the second light-shielding layer is located on a side, close to the light-emitting side, of the second touch trace;

preferably, a surface of the second light shielding layer close to the backlight side is in contact with the second touch trace.

5. The display panel according to claim 2, wherein the light-shielding layer comprises a third light-shielding layer, and the third light-shielding layer is located between the first touch-control traces and the second touch-control traces.

6. The display panel according to claim 5, wherein a surface of the third light shielding layer on a side close to the first touch trace is in contact with the first touch trace; or an insulating layer is arranged between the third light shielding layer and the first touch routing;

the surface of one side, close to the second touch-control wires, of the third light-shielding layer is in contact with the second touch-control wires; or an insulating layer is arranged between the third light shielding layer and the second touch routing.

7. The display panel according to any one of claims 2 to 6, wherein the light-shielding layer includes a fourth light-shielding layer, and the fourth light-shielding layer is located on a side wall surface of the first touch trace and/or the second touch trace.

8. The display panel according to any one of claims 1 to 6, wherein at least a part of the color resists extends to the non-light-emitting region, and an orthogonal projection of the color resists in the non-light-emitting region in a plane in which the light-shielding layer is located at least partially overlaps the light-shielding layer.

9. The display panel according to any one of claims 1 to 6, further comprising an auxiliary color resistor, the auxiliary color resistor and the color resistor being disposed in the same layer and in the non-light-emitting region, wherein the auxiliary color resistor and a part of the color resistor are an integral component.

10. A display device comprising the display panel according to any one of claims 1 to 9.