Display panel and display device

Abstract

The utility model discloses a display panel and a display device. In the display panel, scanning lines extend in the first direction, data lines extend in the second direction, any two adjacent color resistance layers in the first direction have the same color, and the color resistance layers in the second direction are arranged in an array according to the sequence of a first sub color resistance layer, a second sub color resistance layer and a third sub color resistance layer; an overlapping area is formed between at least two adjacent color resistance layers with different colors in the second direction, the black light shielding layer covers the overlapping area, the black light shielding layer is used for shielding scanning lines and the overlapping area of the color resistance layers with different colors, and therefore mixed-color light rays penetrating through the overlapping area are prevented from being emitted out, and the color mixing effect is improved. The problem of color cast can be improved, and the image quality can be further improved while the distance between the adjacent sub-pixels is reduced.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] like Figure 1 and Figure 2 As shown, a TSS (Transparent Storage capacity and Shielding Layer) pixel structure is generally adopted, by adding a transparent shielding layer 2' between the data line 5' and the pixel electrode layer 1' to replace the usual shielding metal and DBS, so as to improve the transmittance and solve the problems such as crosstalk.

[0003] Based on the TSS pixel structure, the data line 5' can be placed below the pixel electrode layer 1' so that the pixel electrode layer 1' partially covers the data line 5', further reducing the distance between two adjacent sub-pixels and maximizing the ratio of the sub-pixel opening area.

[0004] The current sub-pixels include a first sub-pixel R, a second sub-pixel G and a third sub-pixel B of different colors. The sub-pixels are arranged along the extension direction of the scan line (e.g., G1, G2, G3) according to the first sub-pixel R, the second sub-pixel G and the third sub-pixel B. The sub-pixels in each column along the extension direction of the data line (e.g., D1, D2, D3, D4, D5, D6) have the same color. When the data line 5' is placed below the pixel electrode layer 1', the spacing L1 between two adjacent sub-pixels arranged along the extension direction of the scan line is reduced, which easily leads to the formation of an overlapping area 301' between the color resist layers 3' of two adjacent sub-pixels of different colors arranged along the extension direction of the scan line (e.g., the first sub-color resist layer 31' of the first sub-pixel R and the second sub-color resist layer 32' of the second sub-pixel G), resulting in a color mixing phenomenon in the overlapping area 301', resulting in a color shift phenomenon of the entire picture when the display panel performs pixel display. Utility Model Content

[0005] The embodiments of the present application provide a display panel and a display device, which are used to solve the problem in the prior art that color mixing occurs in the overlapping area between the color resist layers of two adjacent sub-pixels with different colors arranged along the extension direction of the scan line, resulting in color deviation of the display panel.

[0006] An embodiment of the present application provides a display panel, comprising a plurality of scan lines extending along a first direction, a plurality of data lines extending along a second direction, a plurality of sub-pixels arranged in an array, and a black light-shielding layer covering the scan lines; wherein the first direction intersects with the second direction; each of the sub-pixels comprises a color-resist layer, a transparent shielding layer, and a pixel electrode layer stacked in sequence; wherein the pixel electrode layer at least partially covers the data line; wherein the color-resist layer comprises a first sub-color-resist layer, a second sub-color-resist layer, and a third sub-color-resist layer of different colors, any two adjacent color-resist layers in the first direction have the same color, and the color-resist layers in the second direction are arranged in an array in the order of the first sub-color-resist layer, the second sub-color-resist layer, and the third sub-color-resist layer; an overlapping area is formed between at least two adjacent color-resist layers in the second direction and of different colors, and the black light-shielding layer covers the overlapping area.

[0007] Furthermore, the distance between any two adjacent pixel electrode layers in the first direction ranges from 3 to 15 um.

[0008] Furthermore, the width of the black light shielding layer is greater than or equal to the width of the overlapping area.

[0009] Furthermore, the display panel includes an array substrate, and the black light shielding layer is arranged on the array substrate.

[0010] Furthermore, the sub-pixel includes a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel includes the first sub-color resist layer, the second sub-pixel includes the second sub-color resist layer, and the third sub-pixel includes the third sub-color resist layer.

[0011] Furthermore, the display panel includes a color filter substrate, and the black light-shielding layer is arranged on the color filter substrate.

[0012] Furthermore, the data line is located on a side of the color resist layer away from the transparent shielding layer; and a middle portion of the pixel electrode layer covers the data line.

[0013] Furthermore, the pixel electrode layer includes a main electrode and branch electrodes connected to the main electrode; the main electrode includes a first main electrode extending along the first direction and a second main electrode extending along the second direction, and the second main electrode partially covers the data line.

[0014] Furthermore, a central axis of the second trunk electrode parallel to the second direction coincides with a central axis of the data line covered by the second trunk electrode parallel to the second direction.

[0015] An embodiment of the present application further provides a display device, which includes the display panel described above.

[0016] The advantages of the present invention are: in the display panel of the present application, the scanning line extends along the first direction, the data line extends along the second direction, the colors of any two adjacent color resist layers in the first direction are the same, and the color resist layers in the second direction are arranged in an array in the order of a first sub-color resist layer, a second sub-color resist layer and a third sub-color resist layer; an overlapping area is formed between at least two adjacent color resist layers in the second direction and having different colors, and the black shading layer covers the overlapping area. The black shading layer is used to shield the scanning line and the overlapping area of ​​the color resist layers with different colors, thereby avoiding the emission of mixed color light passing through the overlapping area, which can improve the color deviation problem and further improve the image quality while reducing the spacing between adjacent sub-pixels. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a schematic diagram of a TSS pixel structure of a display panel in the prior art;

[0019] Figure 2 for Figure 1 Cross-sectional view at AA in the middle;

[0020] Figure 3 A schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0021] Figure 4 for Figure 3 Cross-section at the middle BB;

[0022] Figure 5 A schematic diagram of the structure of a sub-pixel provided in an embodiment of the present application.

[0023] The markings in the figure are as follows:

[0024] Pixel electrode layer 1, transparent shielding layer 2, color resist layer 3, scanning line 4, data line 5, black light shielding layer 6, trunk electrode 11, branch electrode 12, first trunk electrode 111, second trunk electrode 112, red sub-pixel R, green sub-pixel G, blue sub-pixel B, overlapping area 301. DETAILED DESCRIPTION

[0025] The following describes in detail the preferred embodiments of the present invention in conjunction with the drawings in the specification, so as to fully introduce the technical content of the present invention to those skilled in the art, to illustrate that the present invention can be implemented, to make the technical content disclosed by the present invention clearer, and to make it easier for those skilled in the art to understand how to implement the present invention. However, the present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text, and the description of the embodiments below is not intended to limit the scope of the present invention.

[0026] The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only directions in the drawings. The directional terms used in this article are used to explain and illustrate the present invention, and are not used to limit the scope of protection of the present invention.

[0027] In the drawings, components with the same structure are represented by the same numerical labels, and components with similar structures or functions are represented by similar numerical labels. In addition, for the convenience of understanding and description, the size and thickness of each component shown in the drawings are arbitrarily shown, and the utility model does not limit the size and thickness of each component.

[0028] The embodiment of the present application provides a display panel. The display panel of the embodiment can be applied to a 2-domain pixel structure or a 4-domain pixel structure.

[0029] like Figure 3 , Figure 4 As shown, the display panel includes: a plurality of scanning lines 4 , a plurality of data lines 5 , a plurality of sub-pixels and a black light shielding layer 6 covering the scanning lines 4 .

[0030] The plurality of scanning lines 4 extend along the first direction M and are spaced apart from each other.

[0031] The plurality of data lines 5 extend along the second direction N and are spaced apart from each other. The first direction M intersects the second direction N. In this embodiment, the first direction M and the second direction N are perpendicular to each other. The data lines 5 are located on a side of the color resist layer 3 away from the transparent shielding layer 2 .

[0032] Wherein, a plurality of sub-pixels are arranged in an array. In this embodiment, the sub-pixels include a first sub-pixel R, a second sub-pixel G, and a third sub-pixel B of different colors. In other embodiments, the sub-pixels may also be other colors, which is not limited in this application.

[0033] Each sub-pixel includes a color resist layer 3, a transparent shielding layer 2 and a pixel electrode layer 1 which are stacked in sequence.

[0034] The color resist layer 3 includes a first sub-color resist layer 31, a second sub-color resist layer 32 and a third sub-color resist layer (not shown) of different colors. The first sub-pixel R includes the first sub-color resist layer 31, the second sub-pixel G includes the second sub-color resist layer 32, and the third sub-pixel B includes the third sub-color resist layer.

[0035] like Figure 3 As shown, any two adjacent sub-pixels in the first direction M have the same color. Therefore, any two adjacent color-resist layers 3 in the first direction M have the same color.

[0036] like Figure 3 As shown, the sub-pixels in the second direction N are arranged in an array in the order of the first sub-pixel R, the second sub-pixel G and the third sub-pixel B. Therefore, the color resist layer 3 in the second direction N is arranged in an array in the order of the first sub-color resist layer 31, the second sub-color resist layer 32 and the third sub-color resist layer.

[0037] like Figure 4 As shown, an overlapping region 301 is formed between at least two adjacent color resist layers 3 of different colors in the second direction N. For example, an overlapping region 301 is formed between two adjacent first sub-color resist layers 31 and second sub-color resist layers 32 in the second direction N.

[0038] like Figure 4 As shown, the transparent shielding layer 2 is formed between the data line 5 and the pixel electrode layer 1. The transparent shielding layer 2 overlaps with the data line 5 to shield the data electric field, and at the same time, the transmittance of the display panel can be improved.

[0039] like Figure 3 As shown, the pixel electrode layer 1 at least partially covers the data line 5. The middle part of the pixel electrode layer 1 covers the data line 5.

[0040] like Figure 5 As shown, the pixel electrode layer 1 includes a trunk electrode 11 and a branch electrode 12 connected to the trunk electrode 11. The trunk electrode 11 includes a first trunk electrode 111 extending along the first direction M and a second trunk electrode 112 extending along the second direction N. The second trunk electrode 112 partially covers the data line 5. Furthermore, the central axis of the second trunk electrode 112 parallel to the second direction N coincides with the central axis of the data line 5 covered by the second trunk electrode 112 parallel to the second direction N. The data line 5 is placed below the pixel electrode layer 1, so that the pixel electrode layer 1 partially covers the data line 5, further reducing the distance between two adjacent sub-pixels. At this time, the width of the sub-pixel can also be increased, the opening area of ​​the sub-pixel can be increased, and the proportion of the opening area of ​​the sub-pixel can be maximized, which is conducive to improving the image quality.

[0041] The distance L1 between any two adjacent pixel electrode layers 1 in the first direction M is in the range of 3-15 um. In this embodiment, the distance L1 between any two adjacent pixel electrode layers 1 in the first direction M is 8.8 um.

[0042] like Figure 4 As shown, the black shading layer 6 covers the overlapping area 301. The black shading layer 6 is used to cover the overlapping area 301 of the scanning line 4 and the color resist layer 3 of different colors, thereby preventing the mixed color light from passing through the overlapping area 301 from being emitted, which can improve the color deviation problem and further improve the image quality while increasing the aperture ratio.

[0043] The display panel includes an array substrate and a color filter substrate arranged opposite to each other. The pixel electrode layer 1, the transparent shielding layer 2, the color resist layer 3, the scanning line 4, and the data line 5 are all arranged on the array substrate. The color resist layer 3 is on the array substrate, which is a COA (CF on array) process. In this embodiment, the black light shielding layer 6 is arranged on the color filter substrate. In other embodiments, the black light shielding layer 6 can also be arranged on the array substrate, which is not limited in this application.

[0044] The width of the black light shielding layer 6 is greater than or equal to the width of the overlapping area of ​​the color resist layers 3 of different colors. Thus, the black light shielding layer 6 can completely shield the scanning line 4 and the overlapping area 301 of the color resist layers 3 of different colors, thereby preventing mixed light from leaking out and color deviation. In this embodiment, the width of the black light shielding layer 6 is greater than the width of the overlapping area of ​​the color resist layers 3 of different colors.

[0045] An embodiment of the present application further provides a display device, which includes the display panel described in any one of the above items.

[0046] The display panel and the display device provided in the embodiments of the present application change the arrangement of sub-pixels, and arrange the overlapping area 301 of the color resist layers of two adjacent sub-pixels of different colors corresponding to the scanning line 4. The black light-shielding layer 6 on the scanning line 4 is used to shield the scanning line 4 and the overlapping area 301 of the color resist layer 3 of different colors, thereby preventing the mixed color light passing through the overlapping area 301 from being emitted, which can improve the color deviation problem and further improve the image quality while increasing the aperture ratio.

[0047] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0048] The above is a detailed introduction to a display panel and a display device provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, characterized in that: It comprises a plurality of scanning lines (4) extending along a first direction (M), a plurality of data lines (5) extending along a second direction (N), a plurality of sub-pixels arranged in an array, and a black light shielding layer (6) covering the scanning lines (4); Wherein, the first direction (M) intersects with the second direction (N); each of the sub-pixels comprises a color resist layer (3), a transparent shielding layer (2) and a pixel electrode layer (1) which are stacked in sequence; Wherein, the pixel electrode layer (1) at least partially covers the data line (5); The color resist layer (3) comprises a first sub-color resist layer, a second sub-color resist layer and a third sub-color resist layer of different colors, any two adjacent color resist layers (3) in the first direction (M) have the same color, and the color resist layers (3) in the second direction (N) are arranged in an array in the order of the first sub-color resist layer, the second sub-color resist layer and the third sub-color resist layer; An overlapping area is formed between at least two adjacent color-resisting layers (3) of different colors in the second direction (N), and the black light-shielding layer (6) covers the overlapping area.

2. The display panel according to claim 1, characterized in that: The distance between any two adjacent pixel electrode layers (1) in the first direction (M) is in the range of 3-15 um.

3. The display panel according to claim 1, characterized in that: The width of the black light shielding layer (6) is greater than or equal to the width of the overlapping area.

4. The display panel according to claim 1, characterized in that: The display panel comprises an array substrate, and the black light shielding layer (6) is arranged on the array substrate.

5. The display panel according to claim 4, characterized in that: The sub-pixels include a first sub-pixel (R), a second sub-pixel (G) and a third sub-pixel (B), the first sub-pixel (R) includes the first sub-color-resistance layer, the second sub-pixel (G) includes the second sub-color-resistance layer, and the third sub-pixel (B) includes the third sub-color-resistance layer.

6. The display panel according to claim 1, characterized in that: The display panel comprises a color film substrate, and the black light shielding layer (6) is arranged on the color film substrate.

7. The display panel according to claim 1, characterized in that: The data line (5) is located on a side of the color resist layer (3) away from the transparent shielding layer (2); The middle portion of the pixel electrode layer (1) covers the data line (5).

8. The display panel according to claim 7, characterized in that: The pixel electrode layer (1) comprises a main electrode (11) and branch electrodes (12) connected to the main electrode (11); The trunk electrode (11) comprises a first trunk electrode (111) extending along the first direction (M) and a second trunk electrode (112) extending along the second direction (N), and the second trunk electrode (112) partially covers the data line (5).

9. The display panel according to claim 8, characterized in that: The central axis of the second trunk electrode (112) parallel to the second direction (N) coincides with the central axis of the data line (5) covered by the second trunk electrode (112) parallel to the second direction (N).

10. A display device, characterized in that: A display panel comprising any one of claims 1-9.

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