CN110579914A - Special-shaped display panel and display device - Google Patents
Special-shaped display panel and display device Download PDFInfo
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- CN110579914A CN110579914A CN201910903283.3A CN201910903283A CN110579914A CN 110579914 A CN110579914 A CN 110579914A CN 201910903283 A CN201910903283 A CN 201910903283A CN 110579914 A CN110579914 A CN 110579914A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
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Abstract
The invention discloses a special-shaped display panel and a display device, which relate to the technical field of display and comprise a plurality of pixels, wherein the pixels comprise low-brightness pixels and conventional pixels, and the brightness of the low-brightness pixels is smaller than that of the conventional pixels; at least part of sub-pixels in the low-brightness pixel also comprise auxiliary electrodes, in the pixel opening of the low-brightness pixel, the extending direction of the auxiliary electrodes is crossed with the extending direction of the electrode strips, and at least part of the auxiliary electrodes are positioned in the slits along the orthographic projection of the plane which is vertical to the substrate; or at least part of the sub-pixels in the low-brightness pixel further comprise at least one electrode notch, and the electrode notch is positioned on the first electrode and/or the electrode notch is positioned on the second electrode in the pixel opening of the low-brightness pixel. This application introduces auxiliary electrode or electrode breach in low luminance pixel, is favorable to further reducing the grey scale of low luminance pixel to satisfy littleer grey scale transition demand, further weaken the sawtooth phenomenon of dysmorphism border department, promote display effect.
Description
Technical Field
the invention relates to the technical field of display, in particular to a special-shaped display panel and a display device.
background
With the application of display technology in intelligent wearing and other portable electronic devices, the appearance of the display panel has diversified requirements, and a special-shaped display panel appears.
compared with the conventional display panel, the special-shaped display panel is mainly characterized in that the display area of the special-shaped display panel is in a non-rectangular special shape, such as a circle, a ring, a diamond and the like, and most of the pixel units in the display panel are in a rectangular structure or other more regular structures.
In order to solve the above technical problem, a common method is to make the area of the pixel opening of the sub-pixel close to the special-shaped boundary small, for example, the area of the pixel opening gradually increases from the special-shaped boundary to the direction of the display area, so as to obtain a certain gray scale transition effect, and realize gradual change of brightness to weaken the sawtooth phenomenon. However, due to the limitation of process capability, the minimum area of the pixel opening can only be 8 μm by 8 μm, the minimum gray scale obtained by calculation can only be 61, and when the sawtooth phenomenon needs to be weakened better, the gray scale needs to be further reduced, but the current process cannot meet the requirement of smaller gray scale transition.
Disclosure of Invention
In view of this, the invention provides a special-shaped display panel and a display device, wherein an auxiliary electrode or an electrode notch is introduced into a low-brightness pixel, which is beneficial to further reducing the gray scale of the low-brightness pixel, thereby meeting the requirement of smaller gray scale transition, further weakening the sawtooth phenomenon at the special-shaped boundary, and improving the display effect.
in a first aspect, the present application provides a contoured display panel comprising: an array substrate including a substrate; the display area of the special-shaped display panel is provided with a special-shaped boundary;
The special-shaped display panel comprises a plurality of pixels, wherein the pixels comprise low-brightness pixels and normal pixels, and the brightness of the low-brightness pixels is smaller than that of the normal pixels;
A plurality of the pixels form a plurality of pixel rows extending in a first direction and a plurality of pixel columns extending in a second direction, the pixel rows or the pixel columns include a pixel group, the pixel group includes the low-luminance pixel and the normal pixel, the normal pixel is located on a side of the low-luminance pixel away from the deformed boundary, and the first direction intersects the second direction; in the same pixel group, the area of the pixel opening of the low-brightness pixel is gradually increased in the direction from the special-shaped boundary to the display area;
The pixel comprises at least three sub-pixels with different colors, each sub-pixel comprises a first electrode and a second electrode, the first electrode and the second electrode are arranged on the array substrate, and the second electrode is positioned between the substrate and the first electrode along the direction perpendicular to the plane of the substrate; the first electrode comprises a plurality of electrode strips extending along a third direction and arranged along a fourth direction, a slit is arranged between any two adjacent electrode strips, the third direction is crossed with the fourth direction, the third direction is the same as or crossed with the second direction, and the fourth direction is the same as or crossed with the first direction;
At least part of sub-pixels in the low-brightness pixel further comprise auxiliary electrodes, in the pixel openings of the low-brightness pixel, the extending directions of the auxiliary electrodes are crossed with the extending directions of the electrode strips, and at least part of the auxiliary electrodes are positioned in the slits along the orthographic projection perpendicular to the plane of the substrate base plate;
Or, at least some of the sub-pixels in the low-brightness pixel further include at least one electrode notch, and in the pixel opening of the low-brightness pixel, the electrode notch is located on the first electrode and/or the electrode notch is located on the second electrode.
In a second aspect, the present application further provides a display device including the special-shaped display panel provided in the present application.
compared with the prior art, the special-shaped display panel and the display device provided by the invention at least realize the following beneficial effects:
The special-shaped display panel and the display device provided by the invention are provided with the conventional pixels and the low-brightness pixels with the brightness smaller than that of the conventional pixels, wherein the low-brightness pixels are positioned on one side of the conventional pixels, which is close to the special-shaped boundary; in the same pixel group, the area of the pixel opening of the low-brightness pixel is gradually increased in the direction from the special-shaped boundary to the display area. In particular, the present application introduces auxiliary electrodes or electrode gaps in at least some of the sub-pixels in the low brightness pixels:
When the auxiliary electrode is introduced, in the pixel opening of the low-brightness pixel, the extending direction of the auxiliary electrode is crossed with the extending direction of the electrode strip in the corresponding sub-pixel, so that the electric field direction formed at the position of the auxiliary electrode is crossed with the electric field direction formed at the position of the electrode strip, meanwhile, the auxiliary electrode is positioned in the slit, and the effect of blocking the electric field at the position of the auxiliary electrode is also achieved.
When the electrode notch is introduced into the sub-pixel opening, in the pixel opening of the low-brightness pixel, the existence of the electrode notch is equivalent to the reduction of the overlapping area of the first electrode and the second electrode in the direction perpendicular to the plane of the substrate base plate, the overlapping area is reduced, the electric field intensity formed between the first electrode and the second electrode is also reduced, the rotation amplitude of the liquid crystal can be reduced, the gray scale corresponding to the sub-pixel in the corresponding low-brightness pixel is further reduced, the requirement of adapting to the smaller gray scale transition of the special-shaped display panel is facilitated, the sawtooth phenomenon at the special-shaped boundary is further weakened, and the display effect is improved.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram of a portion of a pixel of a prior art display panel with a special shape;
Fig. 2 is a schematic top view of a special-shaped display panel according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a pixel group of the special-shaped display panel according to the embodiment of the invention;
Fig. 4 is a diagram illustrating a relative position relationship between a first electrode and a second electrode of a sub-pixel in a conventional pixel according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of an AA' of the embodiment of FIG. 4;
Fig. 6 is a diagram illustrating a relative position relationship between a first electrode and a second electrode of a sub-pixel in a low-luminance pixel according to an embodiment of the invention;
FIG. 7 is a diagram illustrating another relative position relationship between a first electrode and a second electrode of a sub-pixel according to an embodiment of the present invention;
FIG. 8 is a diagram illustrating another relative position relationship between a first electrode and a second electrode of a sub-pixel according to an embodiment of the present invention;
FIG. 9 is a diagram illustrating another relative position relationship between a first electrode and a second electrode of a sub-pixel according to an embodiment of the present invention;
FIG. 10 is a diagram illustrating another relative position relationship between a first electrode and a second electrode of a sub-pixel according to an embodiment of the present invention;
FIG. 11 is a diagram illustrating another relative position relationship between a first electrode and a second electrode of a sub-pixel according to an embodiment of the present invention;
FIG. 12 is a diagram illustrating another relative position relationship between a first electrode and a second electrode of a sub-pixel according to an embodiment of the present invention;
FIG. 13 is a diagram illustrating another relative position relationship between a first electrode and a second electrode of a sub-pixel according to an embodiment of the present invention;
FIG. 14 is a schematic view of the opening on the first electrode;
FIG. 15 is a schematic view of the opening on the second electrode;
FIG. 16 is a schematic diagram illustrating a portion of a pixel of the irregular-shaped display panel provided in the present application;
FIG. 17 is a schematic diagram illustrating a portion of a pixel of the irregular-shaped display panel provided in the present application;
fig. 18 is a schematic top view of an alternative implementation of a display device according to an embodiment of the disclosure.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
the following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
fig. 1 is a schematic diagram of a part of pixels of an irregular-shaped display panel provided in the prior art, please refer to fig. 1, in order to weaken the sawtooth phenomenon at the irregular-shaped boundary, the area of the pixel opening of the sub-pixel adjacent to the irregular-shaped boundary is reduced, so as to reduce the brightness of the sub-pixel, and the area of the opening of the sub-pixel is gradually changed, so that the gradual change of the brightness is realized at the position of the irregular-shaped boundary, which is beneficial to weakening the sawtooth phenomenon at the irregular-shaped boundary. In the sub-pixel, an opaque region blocked by a Black Matrix (BM) and a transparent region not blocked by the Black Matrix are usually included, wherein the transparent region corresponds to the pixel opening 203, and an area of the pixel opening 203 corresponds to an area of the transparent region. In the prior art, when the area of the pixel opening corresponding to the sub-pixel at the special-shaped boundary needs to be reduced, due to the limitation of the process capability, the minimum area PK of the pixel opening can only be 8 μm by 8 μm, and the minimum gray scale obtained by corresponding calculation can only be 61. For example, in the pixels 201 and 202 in fig. 1, the area of the pixel opening of each sub-pixel is already the smallest within the process capability range, and when it is required to weaken the aliasing phenomenon better to improve the display effect, for example, when the brightness of the pixel 201 needs to be designed to be smaller than the brightness of the pixel 202, the grayscale of the pixel 201 needs to be further reduced, but the current process cannot meet the requirement of smaller grayscale transition, and it is difficult to further improve the edge aliasing phenomenon existing in the special-shaped display panel.
in view of this, the invention provides a special-shaped display panel and a display device, wherein an auxiliary electrode or an electrode notch is introduced into a low-brightness pixel, which is beneficial to further reducing the gray scale of the low-brightness pixel, thereby meeting the requirement of smaller gray scale transition, further weakening the sawtooth phenomenon at the special-shaped boundary, and improving the display effect.
The application provides a special-shaped display panel, which comprises an array substrate, wherein the array substrate comprises a substrate; the display area of the special-shaped display panel is provided with a special-shaped boundary;
The special-shaped display panel comprises a plurality of pixels, wherein the pixels comprise low-brightness pixels and conventional pixels, and the brightness of the low-brightness pixels is smaller than that of the conventional pixels;
The plurality of pixels form a plurality of pixel rows extending in a first direction and a plurality of pixel columns extending in a second direction, the pixel rows or the pixel columns comprise pixel groups, each pixel group comprises a low-brightness pixel and a conventional pixel, the conventional pixel is positioned on one side of the low-brightness pixel, which is far away from the special-shaped boundary, and the first direction and the second direction are crossed; in the same pixel group, the area of the pixel opening of the low-brightness pixel is gradually increased in the direction from the special-shaped boundary to the display area;
the pixel comprises at least three sub-pixels with different colors, each sub-pixel comprises a first electrode and a second electrode, the first electrode and the second electrode are arranged on the array substrate, and the second electrode is positioned between the substrate and the first electrode along the direction perpendicular to the plane where the substrate is positioned; the first electrode comprises a plurality of electrode strips which extend along a third direction and are arranged along a fourth direction, a slit is arranged between any two adjacent electrode strips, the third direction is crossed with the fourth direction, the third direction is the same as or crossed with the second direction, and the fourth direction is the same as or crossed with the first direction;
At least part of sub-pixels in the low-brightness pixel also comprise auxiliary electrodes, in the pixel opening of the low-brightness pixel, the extending direction of the auxiliary electrodes is crossed with the extending direction of the electrode strips, and at least part of the auxiliary electrodes are positioned in the slits along the orthographic projection of the plane which is vertical to the substrate;
Or at least part of the sub-pixels in the low-brightness pixel further comprise at least one electrode notch, and the electrode notch is positioned on the first electrode and/or the electrode notch is positioned on the second electrode in the pixel opening of the low-brightness pixel.
The following detailed description will be made in conjunction with the accompanying drawings.
Fig. 2 is a schematic top view illustrating an irregular display panel provided in an embodiment of the present application, in which the irregular display panel 100 includes a plurality of pixels, each of the pixels includes a low-brightness pixel PD and a normal pixel PC, and the brightness of the low-brightness pixel PD is smaller than that of the normal pixel PC; the plurality of pixels form a plurality of pixel rows PH extending in a first direction, a plurality of pixel columns PL extending in a second direction, the pixel rows PH or the pixel columns PL include a pixel group PZ, the pixel group PZ includes a low-luminance pixel PD and a normal pixel PC, the normal pixel PC is located on a side of the low-luminance pixel PD away from the irregular boundary Y, and the first direction intersects the second direction; in order to ensure gradual and smooth transition of luminance, the number of the low-luminance pixels PD may be greater than the number of pixels adjacent to the special-shaped boundary Y in the pixel group PZ including the low-luminance pixels PD, that is, the low-luminance pixels PD not adjacent to the special-shaped boundary Y may exist in the special-shaped display panel 100.
Fig. 3 is a schematic diagram of a pixel group PZ of the irregular-shaped display panel 100 according to the embodiment of the present invention, and fig. 3 illustrates that the pixel group PZ and the pixel P in one pixel row PH include three sub-pixels with different colors, as shown in fig. 3, in the same pixel group PZ, the area of the pixel aperture PK of the low-luminance pixel PD gradually increases in the direction from the irregular-shaped boundary Y to the display area. It should be noted that the aperture areas of the sub-pixels in the same low-luminance pixel PD may be the same or different, taking a liquid crystal display panel as an example, the liquid crystal display panel includes a black matrix, the black matrix divides the display panel into a plurality of sub-pixels, and the difference of the pixel aperture PK areas in the low-luminance pixel PD can be realized by adjusting the size of the black matrix surrounding the sub-pixels along the first direction or the second direction. In the same pixel group PZ, the special-shaped boundary Y points to the direction of the display area, the area of the pixel opening PK of the low-brightness pixel PD is gradually increased, the brightness of the low-brightness pixel PD is gradually increased, the gradual transition of the brightness from small to large in the direction of the special-shaped boundary Y points to the display area is realized, and the edge sawtooth phenomenon can be weakened to a certain extent.
fig. 4 is a relative positional relationship diagram of the first electrode 11 and the second electrode 12 in the sub-pixel ZP1 in the conventional pixel PC according to an embodiment of the present invention, and fig. 5 is an AA' cross-sectional view of the embodiment in fig. 4, which only shows the relative positional relationship between the first electrode 11 and the second electrode 12 and the substrate 10, and does not show other film structures; fig. 6 is a diagram illustrating a relative position relationship between the first electrode 11 and the second electrode 12 in the sub-pixel ZP2 in the low-brightness pixel PD according to the embodiment of the present invention. Referring to fig. 4 to 6, the pixel includes at least three sub-pixels with different colors, each sub-pixel includes a first electrode 11 and a second electrode 12 disposed on the array substrate, and the second electrode 12 is disposed between the substrate 10 and the first electrode 11 along a direction perpendicular to a plane of the substrate 10; referring to fig. 4 and 6, the first electrode 11 includes a plurality of electrode strips 60 extending along a third direction and arranged along a fourth direction, a slit 61 is included between any two adjacent electrode strips 60, the third direction intersects with the fourth direction, the third direction is the same as or intersects with the second direction, and the fourth direction is the same as or intersects with the first direction; here, only the case where the third direction intersects the second direction and the fourth direction intersects the first direction will be described as an example. The second electrode 12 is typically a planar electrode which is arranged opposite the electrode strips 60 on the first electrode 11, and when a voltage is applied to the first electrode 11 and the second electrode 12, respectively, an electric field is formed between the first electrode 11 and the second electrode 12 which drives the liquid crystal to deflect. It should be noted that, in this application, the first electrode may be a pixel electrode and the second electrode is a common electrode, or the first electrode is a common electrode and the second electrode is a pixel electrode, which is not specifically limited in this application.
in particular, with continued reference to fig. 6, at least some of the sub-pixels ZP2 in the low-luminance pixel PD further include the auxiliary electrodes 20, in the pixel openings PK of the low-luminance pixel PD, the extending direction of the auxiliary electrodes 20 intersects with the extending direction of the electrode strips 60, and at least some of the auxiliary electrodes 20 are located in the slits 61 along the orthogonal projection perpendicular to the plane of the substrate; in this embodiment, the auxiliary electrode 20 whose extending direction intersects with the extending direction of the electrode bar 60 is introduced on the basis of the existing first electrode 11 and second electrode 12, so that the direction of the electric field formed at the auxiliary electrode 20 intersects with the direction of the electric field formed between the original first electrode 11 and second electrode 12, the electric field strength between the first electrode 11 and second electrode 12 is weakened, and the orthogonal projection of the auxiliary electrode 20 is located in the slit 61, and the path of the electric field penetrating from the position of the auxiliary electrode 20 into the liquid crystal cell is also blocked, so as to further weaken the electric field strength reaching the liquid crystal cell, reduce the rotation amplitude of the liquid crystal, further reduce the gray scale of the corresponding sub-pixel in the corresponding low-brightness pixel PD, and facilitate the special-shaped display panel 100 to meet the requirement of smaller gray scale transition, thereby further weakening the sawtooth phenomenon at the special-shaped boundary Y, and the display effect is improved.
alternatively, referring to fig. 7, fig. 7 is another relative position diagram of the first electrode 11 and the second electrode 12 in the sub-pixel provided in the embodiment of the present invention, and at least a part of the sub-pixel ZP2 in the low-luminance pixel PD further includes at least one electrode notch 40, and in the pixel opening PK of the low-luminance pixel PD, the electrode notch 40 is located on the first electrode 11 and/or the electrode notch 40 is located on the second electrode 12. The existence of electrode breach 40 has reduced first electrode 11 and second electrode 12 in the area of overlapping along the direction on the plane of perpendicular to substrate base plate place equivalently, the area of overlapping reduces, the electric field intensity that forms between first electrode 11 and the second electrode 12 will also reduce, can reduce the rotatory range of liquid crystal equally, thereby make the grey scale that corresponds the sub-pixel in the corresponding low-luminance pixel PD obtain further reduction, be favorable to adapting to the demand that the littleer grey scale of special-shaped display panel 100 transits, thereby further weaken the sawtooth phenomenon of special-shaped border Y department, promote display effect.
according to the application, the auxiliary electrode 20 or the electrode notch 40 is introduced into the pixel opening PK in at least part of the sub-pixels ZP2 corresponding to the low-brightness pixel PD, so that the electric field intensity in the corresponding pixel opening PK can be reduced, and the gray scale of the low-brightness pixel PD is further reduced on the premise of not further reducing the area of the pixel opening PK, so that the requirement of smaller gray scale transition of the special-shaped display panel 100 is favorably met.
It should be noted that, after the auxiliary electrode 20 or the electrode notch 40 is introduced into the pixel opening PK, the area occupied by the auxiliary electrode 20 or the electrode notch 40 in the pixel opening PK may be adjusted according to the actual gray scale requirement to realize the requirement of the low-brightness sub-pixel for the lower gray scale, for example, when the gray scale of the sub-pixel needs to be reduced from 61 to 30, the auxiliary electrode 20 or the electrode notch 40 with the first area may be introduced into the pixel opening PK; when the gray scale of another sub-pixel needs to be reduced from 61 to 20, the auxiliary electrode 20 or the electrode notch 40 with a second area can be introduced into the pixel opening PK, wherein the second area is larger than the first area, thereby being beneficial to realizing the fine setting of the lower gray scale of the low-brightness sub-pixel.
An embodiment in which the auxiliary electrode 20 is introduced in the low-luminance pixel PD will be described below.
in some alternative embodiments, with continuing reference to fig. 6, when at least some of the sub-pixels in the low-brightness pixel PD further include the auxiliary electrode 20, the auxiliary electrode 20 is on the same layer as the first electrode 11, the auxiliary electrode 20 includes at least one strip-shaped electrode 21, and the strip-shaped electrode 21 is connected to at least some of the electrode strips 60.
In this embodiment, when the auxiliary electrode 20 and the first electrode 11 are disposed on the same layer, the auxiliary electrode 20 and the first electrode 11 can be fabricated in the same mask process, so that a process of fabricating the auxiliary electrode 20 separately is omitted, and the improvement of the production efficiency of the special-shaped display panel 100 after the auxiliary electrode 20 is introduced is facilitated. In addition, because the width of the slit 61 between two adjacent electrode strips 60 in the first electrode 11 along the fourth direction is smaller, and the length along the third direction is larger, when the application connects the strip-shaped electrode 21 in the auxiliary electrode 20 with at least part of the electrode strips 60 in the first electrode 11, it is equivalent to increase the auxiliary electrode 20 in the slit 61 without considering the interval size of the auxiliary electrode 20 and the strip-shaped electrode 21 along the fourth direction, and different low gray scale design requirements can be realized by only adjusting the length of the auxiliary electrode 20 along the third direction, so that the method is also beneficial to reducing the process complexity for arranging the auxiliary electrode 20.
In some alternative embodiments, referring to fig. 6, the extending direction of the stripe electrodes 21 is parallel to the first direction, or referring to fig. 8, the extending direction of the stripe electrodes 21 is parallel to the fourth direction, where fig. 8 is another relative position relationship diagram of the first electrode 11 and the second electrode 12 in the sub-pixel provided in the embodiment of the present invention.
the present application sets the extending direction of the strip-shaped electrodes 21 in the auxiliary electrodes 20 to be parallel to the first direction, that is, perpendicular to the extending direction of the electrode strips 60; or is disposed parallel to the fourth direction, that is, parallel to the arrangement direction of the electrode bars 60; in the actual manufacturing process, the two setting modes of the strip-shaped electrode 21 are regular, which is beneficial to simplifying the manufacturing process of the strip-shaped electrode 21.
in order to realize the design of lower gray scale of the low-brightness sub-pixel, the strip-shaped electrode 21 can be arranged in the pixel opening PK, and the gray scale of the corresponding sub-pixel can be adjusted by adjusting the area of the strip-shaped electrode 21. In addition to this implementation, in some alternative embodiments, at least some of the sub-pixels in the low-luminance pixel PD include two strip-shaped electrodes 21; in this way, the ratio of the area of the strip-shaped electrodes 21 in the pixel openings PK can be changed by adjusting the number of the strip-shaped electrodes 21 in the pixel openings PK, and the design requirements of the low-brightness sub-pixels for different low gray levels can also be met.
Fig. 9 is a diagram illustrating another relative position relationship between the first electrode 11 and the second electrode 12 in the sub-pixel provided in the embodiment of the present invention, in which the extending directions of the two strip electrodes 21 are the same; thus, the two strip-shaped electrodes 21 can be manufactured by adopting the same specification process, which is beneficial to reducing the complexity of the manufacturing process;
Alternatively, fig. 10 is a diagram illustrating another relative position relationship between the first electrode 11 and the second electrode 12 in the sub-pixel provided in the embodiment of the present invention, when the fourth direction crosses the first direction, the extending direction of one of the two stripe electrodes 21 is parallel to the first direction, and the extending direction of the other is parallel to the fourth direction. By forming two strip-shaped electrodes 21 in the same sub-pixel in this way, the effects of weakening the electric field and reducing the gray scale can be achieved.
In some alternative embodiments, the same strip-shaped electrode 21 is connected to two electrode strips 60, respectively. Thus, when the strip-shaped electrodes 21 are disposed in the slits 61 formed by the two electrode strips 60, the strip-shaped electrodes 21 cover some regions of the slits 61 along the first direction or the fourth direction, that is, both sides of the strip-shaped electrodes 21 along the first direction or the fourth direction are connected to the electrode strips 60, and there is no need to consider a process of separating the strip-shaped electrodes 21 from the electrode strips 60 by a distance along the first direction or the fourth direction, which is beneficial to reducing a manufacturing process of manufacturing the strip-shaped electrodes 21.
In some optional embodiments, referring to fig. 8-10, the orthographic projection of the auxiliary electrode 20 on the plane of the substrate is completely located in the pixel opening PK, at this time, the area of the auxiliary electrode 20 in the pixel opening PK is equal to the actual area of the auxiliary electrode 20, and the gray scale of the corresponding sub-pixel can be controlled by controlling the actual area of the auxiliary electrode 20.
alternatively, in some optional embodiments, fig. 11 is a diagram illustrating another relative position relationship between the first electrode 11 and the second electrode 12 in the sub-pixel provided in an embodiment of the present invention, in which a part of the orthogonal projection of the auxiliary electrode 20 on the plane of the substrate is located in the pixel opening PK, and another part of the orthogonal projection is located outside the pixel opening PK. At this time, the area of the portion of the auxiliary electrode 20 in the pixel opening PK is smaller than the actual area of the auxiliary electrode 20, and the gray scale of the corresponding sub-pixel can be controlled by controlling the size of the area of the portion of the auxiliary electrode 20 in the pixel opening PK.
An example of introducing the electrode notch 40 in the low-luminance pixel PD will be described below.
in some alternative embodiments, fig. 12 is a diagram illustrating another relative position relationship between the first electrode 11 and the second electrode 12 in the sub-pixel provided in the embodiment of the present invention, when the electrode notch 40 is located on the first electrode 11, the notch penetrates at least a portion of the electrode stripe 60 in the pixel opening PK of the low-brightness pixel PD.
In this embodiment, the area of the first electrode 11 in the sub-pixel opening PK is reduced, so that the overlapping area of the first electrode 11 and the second electrode 12 in the direction perpendicular to the plane of the substrate is reduced, the electric field intensity formed between the first electrode 11 and the second electrode 12 is reduced, the liquid crystal deflection amplitude is reduced, and the gray scale of the corresponding sub-pixel is reduced. It should be noted that the electrode notch 40 may be formed at the same time when the first electrode 11 is formed, for example, the first electrode 11 and the electrode notch 40 are formed simultaneously in a mask process, which is advantageous to simplify the manufacturing process and improve the production efficiency. Of course, the electrode gap 40 may be formed by etching a partial region of the electrode bar 60 after the electrode bar 60 is formed. This is not particularly limited in the present application. The present application can also achieve the different low gray level requirements in the low brightness pixel PD by adjusting the area of the electrode bar 60 gap in the pixel opening PK, for example, when the required gray level is lower, the area of the portion of the electrode gap 40 in the pixel opening PK can be designed to be larger, otherwise, the area can be designed to be smaller. Fig. 11 shows the case where the electrode gap 40 penetrates through the electrode bar 60, but of course, in some other embodiments of the present application, the electrode gap 40 need not penetrate through the electrode bar 60 as long as the area of the electrode gap 40 in the pixel opening PK meets the size requirement.
In some alternative embodiments, fig. 13 is a diagram illustrating another relative position relationship between the first electrode 11 and the second electrode 12 in the sub-pixel provided in the embodiment of the present invention, when the electrode notch 40 is located on the second electrode 12, the notch extends along the first direction (as shown in fig. 13) or along the fourth direction (as shown in fig. 7) in the pixel opening PK of the low-brightness pixel PD;
in the pixel aperture PK of the low brightness pixel PD, the electrode indentation 40 and at least part of the electrode stripe 60 overlap in a forward projection onto the plane of the substrate base plate.
in the embodiment shown in fig. 7 and 13, the electrode notches 40 are formed on the second electrode 12, and the electrode notches 40 and the electrode bars 60 overlap with each other in the orthogonal projection direction of the substrate, which is equivalent to reducing the overlapping area of the second electrode 12 and the first electrode 11 in the pixel opening PK along the direction perpendicular to the substrate, thereby also being beneficial to reducing the electric field strength formed between the first electrode 11 and the second electrode 12, reducing the liquid crystal deflection amplitude, reducing the gray scale of the corresponding sub-pixel, and further meeting the transition requirement of the low-brightness sub-pixel for lower gray scale.
in some alternative embodiments, fig. 14 is a schematic diagram of the hollow portion 41 on the first electrode 11, and fig. 15 is a schematic diagram of the hollow portion 41 on the second electrode 12, when the electrode gap 40 is located on the first electrode 11 and/or the electrode gap 40 is located on the second electrode 12, the electrode gap 40 includes the hollow portion 41 penetrating through the first electrode 11 and/or the second electrode 12 along a direction perpendicular to a plane of the substrate.
In the pixel opening PK, the hollow portion 41 may be located on only one of the first electrode 11 or the second electrode 12, or the hollow portions 41 may be disposed on both the first electrode 11 and the second electrode 12, please refer to fig. 14 and fig. 15, and the specific number, size and position of the arrangement may be determined according to the requirement of the sub-pixel on the gray scale. When the electrode gap 40 includes the hollow portion 41, the introduction of the hollow portion 41 can also weaken the electric field intensity between the first electrode 11 and the second electrode 12, thereby realizing a lower gray scale design of the sub-pixel.
In some alternative embodiments, the shape of the orthogonal projection of the hollow portion 41 on the plane of the substrate base plate is a circle or a polygon. For example, the hollow portion 41 shown in fig. 14 is a circle or an ellipse, and the hollow portion 41 shown in fig. 15 is a polygon, but the shape of the hollow portion 41 may be flexibly set according to actual requirements, and the present application is not particularly limited thereto.
In some alternative embodiments, fig. 16 is a schematic diagram of a part of pixels of the profiled display panel 100 provided in the present application, where the low-luminance pixel PD includes a first low-luminance pixel PD1 and a second low-luminance pixel PD2, the first low-luminance pixel PD1 is adjacent to the profiled boundary Y, the second low-luminance pixel PD2 is located on a side of the first low-luminance pixel PD1 away from the profiled boundary Y, and the sub-pixels in the first low-luminance pixel PD1 include the auxiliary electrode 20 or the electrode notch 40 in the foregoing embodiments.
In an actual manufacturing process, the opening area of the first low-luminance pixel PD1 may be designed to be equal to the opening area of the second low-luminance pixel PD2, for example, each opening area is designed to be 8 μm by 8 μm, but since the first low-luminance pixel PD1 is closer to the irregular boundary Y, it is more beneficial to realize the transition of edge luminance and weaken the jaggy phenomenon when the gray scale of the first low-luminance pixel is designed to be smaller than that of the second low-luminance pixel PD 2. At this time, on the premise that the opening area of the sub-pixel in the first low-luminance pixel PD1 is not changed, the auxiliary electrode 20 or the electrode notch 40 may be respectively disposed in each sub-pixel corresponding to the first low-luminance pixel PD1, so as to weaken the electric field intensity in the sub-pixel corresponding to the first low-luminance pixel, so that the gray scales of the sub-pixels are smaller than the gray scale of the sub-pixel corresponding to the second low-luminance pixel PD2, for example, when the gray scale of the second low-luminance sub-pixel is 61, the gray scale of the first low-luminance pixel PD1 may be reduced to be less than 61 by introducing the auxiliary electrode 20 or the electrode notch 40, so that a better luminance transition is realized at the irregular boundary Y, which is more favorable for weakening the saw tooth phenomenon, and improving the visual experience effect.
In the above embodiment, the auxiliary electrode 20 or the electrode notch 40 is disposed in the first low-luminance pixel PD1 adjacent to the irregular boundary Y, and in some alternative embodiments, fig. 17 is a schematic diagram of a part of pixels of the irregular display panel 100 provided in the present application, and at least a part of the sub-pixels in the second low-luminance pixel PD2 include the auxiliary electrode 20 or the electrode notch 40.
When a more refined low-gray level transition is required at the special-shaped boundary Y of the display panel, for example, sub-pixels in several consecutive pixels at the special-shaped boundary Y are required to be designed to have a gray level lower than 61 (for example, the first low-brightness pixel PD1 and the second low-brightness pixel PD2 are required to have a lower gray level), the part of pixels includes both the first low-brightness pixel PD1 adjacent to the special-shaped boundary Y and at least one second low-brightness pixel PD2 not adjacent to the special-shaped boundary Y, when the gray scale cannot be reduced by changing the area of the pixel opening PK in the process, the design of lower gray scale can also be realized by disposing the auxiliary electrode 20 or the electrode notch 40 in each second low-brightness pixel PD2, for example, the gray levels are sequentially represented as 15, 31, 48, and the like, so that a finer brightness transition effect is realized, and the visual experience effect is more favorably improved.
based on the same inventive concept, the present application further provides a display device 300 including any one of the special-shaped display panels 100 provided in the embodiments of the present application. Fig. 18 is a schematic top view of an alternative implementation of a display device 300 according to an embodiment of the present invention, and as shown in fig. 18, the display device 300 includes a special-shaped display panel 100 having an arc-shaped boundary Y. The display device 300 provided by the present application may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. In the present application, the embodiment of the display device 300 can be referred to the embodiment of the special-shaped display panel 100, and repeated descriptions are omitted here.
according to the embodiment, the special-shaped display panel and the display device disclosed by the invention have the following beneficial effects:
The special-shaped display panel and the display device provided by the invention are provided with the conventional pixels and the low-brightness pixels with the brightness smaller than that of the conventional pixels, wherein the low-brightness pixels are positioned on one side of the conventional pixels, which is close to the special-shaped boundary; in the same pixel group, the area of the pixel opening of the low-brightness pixel is gradually increased in the direction from the special-shaped boundary to the display area. In particular, the present application introduces auxiliary electrodes or electrode gaps in at least some of the sub-pixels in the low brightness pixels:
when the auxiliary electrode is introduced, in the pixel opening of the low-brightness pixel, the extending direction of the auxiliary electrode is crossed with the extending direction of the electrode strip in the corresponding sub-pixel, so that the electric field direction formed at the position of the auxiliary electrode is crossed with the electric field direction formed at the position of the electrode strip, meanwhile, the auxiliary electrode is positioned in the slit, and the effect of blocking the electric field at the position of the auxiliary electrode is also achieved.
When the electrode notch is introduced into the sub-pixel opening, in the pixel opening of the low-brightness pixel, the existence of the electrode notch is equivalent to the reduction of the overlapping area of the first electrode and the second electrode in the direction perpendicular to the plane of the substrate base plate, the overlapping area is reduced, the electric field intensity formed between the first electrode and the second electrode is also reduced, the rotation amplitude of the liquid crystal can be reduced, the gray scale corresponding to the sub-pixel in the corresponding low-brightness pixel is further reduced, the requirement of adapting to the smaller gray scale transition of the special-shaped display panel is facilitated, the sawtooth phenomenon at the special-shaped boundary is further weakened, and the display effect is improved.
although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (13)
1. The special-shaped display panel is characterized by comprising an array substrate, wherein the array substrate comprises a substrate; the display area of the special-shaped display panel is provided with a special-shaped boundary;
The special-shaped display panel comprises a plurality of pixels, wherein the pixels comprise low-brightness pixels and normal pixels, and the brightness of the low-brightness pixels is smaller than that of the normal pixels;
a plurality of the pixels form a plurality of pixel rows extending in a first direction and a plurality of pixel columns extending in a second direction, the pixel rows or the pixel columns include a pixel group, the pixel group includes the low-luminance pixel and the normal pixel, the normal pixel is located on a side of the low-luminance pixel away from the deformed boundary, and the first direction intersects the second direction; in the same pixel group, the area of the pixel opening of the low-brightness pixel is gradually increased in the direction from the special-shaped boundary to the display area;
the pixel comprises at least three sub-pixels with different colors, each sub-pixel comprises a first electrode and a second electrode, the first electrode and the second electrode are arranged on the array substrate, and the second electrode is positioned between the substrate and the first electrode along the direction perpendicular to the plane of the substrate; the first electrode comprises a plurality of electrode strips extending along a third direction and arranged along a fourth direction, a slit is arranged between any two adjacent electrode strips, the third direction is crossed with the fourth direction, the third direction is the same as or crossed with the second direction, and the fourth direction is the same as or crossed with the first direction;
at least part of sub-pixels in the low-brightness pixel further comprise auxiliary electrodes, in the pixel openings of the low-brightness pixel, the extending directions of the auxiliary electrodes are crossed with the extending directions of the electrode strips, and at least part of the auxiliary electrodes are positioned in the slits along the orthographic projection perpendicular to the plane of the substrate base plate;
Or, at least some of the sub-pixels in the low-brightness pixel further include at least one electrode notch, and in the pixel opening of the low-brightness pixel, the electrode notch is located on the first electrode and/or the electrode notch is located on the second electrode.
2. The shaped display panel according to claim 1, wherein when at least some of the sub-pixels in the low-brightness pixel further comprise an auxiliary electrode, the auxiliary electrode is on the same layer as the first electrode, the auxiliary electrode comprises at least one stripe electrode, and the stripe electrode is connected to at least some of the electrode stripes.
3. The shaped display panel according to claim 2, characterized in that the direction of extension of the strip-shaped electrodes is parallel to the first direction or the direction of extension of the strip-shaped electrodes is parallel to the fourth direction.
4. The shaped display panel according to claim 3, wherein at least some of the sub-pixels in the low brightness pixels comprise two of the strip electrodes;
The extending directions of the two strip-shaped electrodes are the same;
or, when the fourth direction crosses the first direction, the extending direction of one of the two strip-shaped electrodes is parallel to the first direction, and the extending direction of the other one of the two strip-shaped electrodes is parallel to the fourth direction.
5. the shaped display panel according to claim 3, wherein the same bar-shaped electrode is connected to both of said electrode bars, respectively.
6. The shaped display panel according to claim 2, wherein an orthographic projection of the auxiliary electrode on the plane of the substrate base plate is entirely located in the pixel opening; or, a part of the orthographic projection of the auxiliary electrode on the plane of the substrate base plate is positioned in the pixel opening, and the other part of the orthographic projection of the auxiliary electrode is positioned outside the pixel opening.
7. The shaped display panel according to claim 1, wherein the electrode gaps extend through at least part of the electrode strips in the pixel openings of the low brightness pixels when the electrode gaps are located on the first electrodes.
8. The shaped display panel according to claim 1, wherein when the electrode gap is located on the second electrode, the gap extends in the first direction or the fourth direction in the pixel opening of the low brightness pixel;
In the pixel opening of the low-brightness pixel, the electrode notch and at least part of the electrode strip are overlapped in the orthographic projection of the electrode notch to the plane of the substrate base plate.
9. The shaped display panel according to claim 1, wherein the electrode notch comprises a hollowed-out portion that penetrates the first electrode and/or the second electrode in a direction perpendicular to the plane of the substrate when the electrode notch is located on the first electrode and/or the electrode notch is located on the second electrode.
10. the shaped display panel according to claim 1, wherein the shape of the orthogonal projection of the hollowed-out portion on the plane of the substrate base plate is circular or polygonal.
11. the shaped display panel of claim 1, wherein the low luminance pixels comprise a first low luminance pixel adjacent to the shaped boundary and a second low luminance pixel on a side of the first low luminance pixel away from the shaped boundary, the sub-pixels in the first low luminance pixel comprising the auxiliary electrode or the electrode notch.
12. The shaped display panel according to claim 11, wherein at least some of the sub-pixels in the second low-luminance pixels comprise the auxiliary electrode or the electrode gap.
13. a display device comprising the shaped display panel according to any one of claims 1 to 12.
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