CN114428419A

CN114428419A - Display panel and display device

Info

Publication number: CN114428419A
Application number: CN202210153122.9A
Authority: CN
Inventors: 张手强; 董职福; 王威杰
Original assignee: BOE Technology Group Co Ltd; Chongqing BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chongqing BOE Optoelectronics Technology Co Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-05-03
Anticipated expiration: 2042-02-18
Also published as: CN114428419B

Abstract

The application discloses a display panel and a display device. The display panel includes: the liquid crystal display device comprises an array substrate, a liquid crystal layer and a black matrix layer. The display panel comprises a display area and a non-display area surrounding the display area, the black matrix layer comprises a groove, the groove surrounds the display area, the array substrate comprises a reference voltage wire, and the projection of the reference voltage wire on the black matrix layer covers the groove on the side edge of the display panel. The display panel of the application is arranged on the array substrate through the reference voltage, and the reference voltage is arranged in the groove formed in the side edge of the display panel covered by the projection of the black matrix layer, so that the problem of poor light leakage of the display panel can be effectively avoided, and the display quality of the display panel is improved.

Description

Display panel and display device

Technical Field

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

Background

In order to prevent electrostatic discharge (ESD) during the cutting process, a peripheral groove is usually formed in a Black Matrix (Black, Matrix, BM) on the Color Filter (CF) side to block an abnormal picture phenomenon caused by the influence of Static electricity on a display area (AA area). Meanwhile, in order to prevent light leakage at the wide viewing angle at the groove, the groove is filled with Blue (Blue) pixels, and the CF side BM groove is usually located at the Gate (Gate) or source/drain (SD) trace of the LCD reference voltage line (Vcom) at the periphery of the Array substrate (Array) side AA area, as shown in fig. 1.

However, due to the narrow frame, the widths of the LCD reference voltage lines (Vcom) at the left and right edges and the irregular display panel are limited, and the accuracy of the Touch Panel (TP) with the Array and CF alignment of the advanced panel lines is low, so that the liquid crystal alignment is abnormal due to the fringe electric field, and thus the display quality of the display panel is affected, as shown in fig. 2.

Disclosure of Invention

In view of the above, the present invention is directed to solving, at least to some extent, one of the problems in the related art. To this end, an object of the present application is to provide a display panel and a display apparatus.

The embodiment of the application provides a display panel. The display panel includes: the liquid crystal display panel comprises an array substrate, a liquid crystal layer and a black matrix layer, wherein the display panel comprises a display area and a non-display area surrounding the display area, the black matrix layer comprises a groove, the groove surrounds the display area, the array substrate comprises a reference voltage wire, and the projection of the reference voltage wire on the black matrix layer covers the groove on the side edge of the display panel.

In some embodiments, the distance from the projection edge of the reference voltage trace on the black matrix layer to the edge of the groove is greater than or equal to 10 um.

In some embodiments, the display panel includes a gap region, the array substrate includes a gate signal line, and the gate signal line includes a square portion in the gap region, and a projection of the square portion on the black matrix layer at least partially covers the groove.

In some embodiments, the reference signal trace is bent at the notch area in multiple sections and is formed with multiple corners, the square portion is located at least one of the corners, and projections of the square portion and the reference signal trace on the black matrix layer cover the groove of the notch area.

In certain embodiments, the groove comprises a blind or through groove.

In some embodiments, the array substrate includes a gate layer, an active layer, a first electrode layer, a source drain layer, a passivation layer, and a second electrode layer, which are sequentially stacked, and the second electrode layer is provided with the reference voltage trace.

In some embodiments, the array substrate includes a gate layer, an insulating layer, an active layer, a source drain layer, a planarization layer, a first electrode layer, a passivation layer, and a second electrode layer, which are sequentially stacked, where the first electrode layer is provided with the reference voltage trace.

In some embodiments, the recess is filled with a colored block.

In some embodiments, the display panel includes a color film layer, the black matrix has a plurality of openings formed in the display area, and the color film layer is disposed corresponding to the plurality of openings.

The application provides a display device. The display device includes the display panel according to any one of the above embodiments.

The display panel and the display device have the advantages that the reference voltage wiring is arranged on the array substrate, the groove in the side edge of the display panel is covered by the projection of the reference voltage wiring on the black matrix layer, the problem of poor light leakage of the display panel can be effectively avoided, and the display quality of the display panel is improved.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a conventional display panel;

FIG. 2 is a diagram illustrating a conventional light leakage phenomenon at an edge of a display panel;

FIG. 3 is a schematic structural diagram of a display panel according to some embodiments of the present application;

FIG. 4 is a schematic cross-sectional view of a display panel according to some embodiments of the present application;

FIG. 5 is a schematic top view of a display panel according to some embodiments of the present disclosure;

FIG. 6 is a schematic diagram of a substrate of a display panel according to some embodiments of the present disclosure;

fig. 7 is a schematic structural diagram of a display device according to some embodiments of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

Referring to fig. 3, in order to improve the edge light leakage phenomenon of the display panel shown in fig. 2, the present application provides a display panel 100. The display panel 100 includes: an array substrate 10, a liquid crystal layer 20 and a black matrix layer 30. The display panel 100 includes a display region 101 and a non-display region 102 surrounding the display region 101, and the black matrix layer 30 includes a groove 31, the groove 31 surrounding the display region 101. The array substrate 10 includes reference voltage traces 11, and the projection of the reference voltage traces 11 on the black matrix layer 30 covers the grooves 31 on the side of the display panel 100.

Thus, the display panel 100 of the present application can effectively avoid the problem of poor light leakage of the display panel 100 by providing the reference voltage traces 11 on the array substrate 10 and enabling the projection of the reference voltage traces 11 on the black matrix layer 30 to cover the groove 31 on the side of the display panel 100, thereby improving the display quality of the display panel 100.

Referring to fig. 3 and 4 again, the distance from the projection edge of the reference voltage trace 11 on the black matrix layer 30 to the edge of the groove 31 is greater than or equal to 10 um.

Thus, the reference voltage traces 11 can completely cover the grooves 31 in the black matrix 30, thereby further avoiding the problem of poor light leakage of the display panel 100 and further improving the display quality of the display panel 100.

In addition, the edge distance of the reference voltage wiring 11 covering the groove 31 is kept more than 10um, and a larger frame space can be reserved, so that the structural layout of the outer frame of the display panel 100 is more reasonable.

Referring to fig. 5, the display panel 100 includes a gap 103, the array substrate 10 includes a Gate (Gate) signal line 12, the Gate signal line 12 includes a square portion 121 in the gap 103, and a projection of the square portion 121 on the black matrix layer 30 at least partially covers the groove 31.

The projection of the square part 121 on the black matrix layer 30 at least partially covers the groove 31, which includes the following conditions: (1) one corner of the block 121 covers the groove 31 (shown in fig. 5); (2) the entire block portion 121 covers the groove 31; (3) the greater part of the area of more than one corner of the block 121 covers the recess 31. That is, the block portion 121 may be configured to cover the area of the groove 31, or may be configured to be larger than the area of the groove 31, which is not limited herein.

It can be understood that, in the display panel 100, the notch region 103 is disposed at the corner of the groove 31 corresponding to the gate signal line 12, so as to shorten the notch length as much as possible, and further minimize the area of the non-display region 102, thereby maximizing the area of the display region 101 and improving the user experience.

As shown in fig. 5, the square portion 121 is disposed in the gap area 103 corresponding to the gate signal line 12, and at least partially covers the groove 31, so as to avoid light leakage of the display panel 100. The block portion 121 may be a metal block or a block made of other materials, and is not limited herein.

The reference signal trace 11 is bent in multiple sections in the notch area 103 and is formed with multiple corners, the square portion 121 is located at least one corner, and the projection of the square portion 121 and the reference signal trace 11 on the black matrix layer 30 covers the groove 31 of the notch area 103. Specifically, the reference signal trace 11 is bent in multiple sections in the notch area 103, only a part of the reference signal trace 11 of the display panel 100 is shown in fig. 5, the part of the reference signal trace 11 is bent in 6 sections to form 5 corners, and 3 corners corresponding to the gate signal 12 are provided with square portions 121, that is, 3 square portions 121 are shown in fig. 5 in total.

Thus, the display panel 100 of the present application covers the groove 31 on the side of the display panel 100 through the projection of the black matrix layer 30 by setting the reference voltage routing 11 and the setting and matching combined action of the square part 121, so that the display panel 100 of the present application avoids the light leakage phenomenon of the display panel 100 on the basis that the groove 31 is reasonably arranged and is favorable for the area miniaturization of the non-display area 102.

In some embodiments, the grooves 31 comprise blind or through grooves, i.e., the grooves 31 may or may not be filled with a substance.

Specifically, if the groove 31 is a blind groove, that is, the groove 31 can be filled with opaque materials, as shown in fig. 3, the groove 31 can be filled with color resist blocks, and the color resist blocks filled in the groove 31 have a certain light transmittance, so that the light cannot be completely shielded, and the light leakage phenomenon of the display panel 100 can be further avoided.

If the groove 31 is a through groove, the color block is not filled in the groove 31, and the light leakage phenomenon of the display panel 100 can be avoided only by the matching effect of the reference voltage trace 11 on the groove 31 and the square part 121 of the side edge of the display panel 100 covered by the projection of the black matrix layer 30, and in this case, no material needs to be filled in the groove 31, so that the manufacturing of the display panel 100 is simpler.

Referring to fig. 6, the array substrate 10 includes a gate layer 131, an active layer 141, a first electrode layer 151, a source drain layer 161, a passivation layer 171, and a second electrode layer 181, which are sequentially stacked. The second electrode layer 181 is provided with a reference voltage trace 11.

So, the array substrate 10 of this application can add reference voltage on the basis that traditional level set up and walk line 11 on second electrode layer 181 to the realization is to the sheltering from of recess 31, avoids display panel 100 to appear the light leak phenomenon.

The array substrate 10 includes a gate layer 132, an insulating layer 142, an active layer 152, a source drain layer 162, a planarization layer 172, a first electrode layer 182, a passivation layer 192, and a second electrode layer 193, which are sequentially stacked, wherein the first electrode layer 182 is provided with a reference voltage trace 11.

Therefore, the array substrate 10 of the present application can add the reference voltage routing 11 on the first electrode layer 182 on the basis of the conventional level setting, so as to shield the groove 31 and avoid the light leakage phenomenon of the display panel 100.

Referring to fig. 3, the display panel 100 includes a color film layer 40, the black matrix layer 30 has a plurality of openings 32 formed in the display region 101, and the color film layer 40 is disposed corresponding to the plurality of openings 32. The color film layer 40 includes three color layers of red (R), green (G), and blue (B). The display panel 100 of the present application can realize the color display effect of the display panel 100 by disposing the color film layer 40 in the display area 101.

Referring to fig. 7, the present application further provides a display apparatus 1000. The display device 1000 comprises the display panel 100 described hereinbefore. The structure of the display panel 100 is as described above, and is not described herein again.

The display panel 100 in the display device 1000 of the application is provided with the reference voltage wiring on the array substrate, and the projection of the reference voltage wiring on the black matrix layer covers the groove on the side of the display panel, so that the problem of poor light leakage of the display panel can be effectively avoided, and the display quality of the display panel is improved.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A display panel, comprising: the liquid crystal display panel comprises an array substrate, a liquid crystal layer and a black matrix layer, wherein the display panel comprises a display area and a non-display area surrounding the display area, the black matrix layer comprises a groove, the groove surrounds the display area, the array substrate comprises a reference voltage wire, and the projection of the reference voltage wire on the black matrix layer covers the groove on the side edge of the display panel.

2. The display panel of claim 1, wherein the distance from the projection edge of the reference voltage trace on the black matrix layer to the groove edge is greater than or equal to 10 um.

3. The display panel according to claim 1, wherein the display panel comprises a gap region, the array substrate comprises a gate signal line, the gate signal line comprises a square portion in the gap region, and a projection of the square portion on the black matrix layer at least partially covers the groove.

4. The display panel according to claim 3, wherein the reference signal trace is bent at the notch area in multiple sections and is formed with a plurality of corners, the square portion is located at least one of the corners, and projections of the square portion and the reference signal trace on the black matrix layer cover the groove of the notch area.

5. The display panel of claim 1, wherein the groove comprises a blind or through groove.

6. The display panel according to claim 1, wherein the array substrate comprises a gate electrode layer, an active layer, a first electrode layer, a source drain electrode layer, a passivation layer, and a second electrode layer, which are sequentially stacked, and the second electrode layer is provided with the reference voltage trace.

7. The display panel according to claim 1, wherein the array substrate comprises a gate electrode layer, an insulating layer, an active layer, a source drain electrode layer, a planarization layer, a first electrode layer, a passivation layer, and a second electrode layer, which are sequentially stacked, and the first electrode layer is provided with the reference voltage trace.

8. The display panel of claim 1, wherein the groove is filled with a colored block.

9. The display panel according to claim 1, wherein the display panel comprises a color film layer, the black matrix layer has a plurality of openings formed in the display region, and the color film layer is disposed corresponding to the plurality of openings.

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