WO2020062463A1

WO2020062463A1 - Array substrate, display panel and display device

Info

Publication number: WO2020062463A1
Application number: PCT/CN2018/114523
Authority: WO
Inventors: 杨艳娜
Original assignee: 惠科股份有限公司; 重庆惠科金渝光电科技有限公司
Priority date: 2018-09-30
Filing date: 2018-11-08
Publication date: 2020-04-02
Also published as: CN208737168U

Abstract

An array substrate (10), comprising a first substrate (11), a metal shielding layer (12), a first black shading layer (14), and a data line (15). The metal shielding layer (12) is provided on the surface of the first substrate (11). An insulating layer (13) is provided on the metal shielding layer (12) and the surface of the first substrate (11) exposed from the metal shielding layer (12). The first black shading layer (14) is provided on the surface of the insulating layer (13). The data line (15) is provided on the surface of the first black shading layer (14). The metal shielding layer (12) comprises a first metal shielding line (121). An orthographic projection of the first black shading layer (14) on the first substrate (11) partially overlaps orthographic projections of two first metal shielding lines (121) located on opposite sides of the data line (15) on the first substrate (11). A gap between an orthographic projection of the data line (15) on the first substrate (11) and an orthographic projection of the first metal shielding line (121) on the first substrate (11) is completely shielded by means of the first black shading layer (14), so as to effectively solve the technical problem of a light-leakage defect between the metal shielding line (12) and the data line (15) caused by deviation of the position of the black matrix from the design position, reduce the light-leakage risk of the array substrate (10), and improve the yield of the display panel (1).

Description

Array substrate, display panel and display device

Technical field

The present application belongs to the technical field of display devices, and more particularly, relates to an array substrate, a display panel, and a display device.

Background technique

Display devices, such as mobile phones, personal digital assistants, digital cameras, desktop computers, or notebook computers, are widely used due to their thin body, power saving, and radiation-free advantages. Existing display devices generally use a display panel as a main image display component. The display panel is generally formed by a pair of upper and lower substrates, namely, an array substrate and a color filter substrate. On the array substrate and the color filter substrate, polarizing plates whose polarization directions are perpendicular to each other are respectively pasted. Shielded metal lines, data lines, and thin film transistors and pixel electrodes arranged in a matrix are formed on the array substrate. A black matrix, a color resin, and a common electrode are formed on the black matrix. The main purpose of the black matrix is to isolate the color resin (red resin, blue resin, and green resin), and at the same time to block light in the light leakage area. In the current design, the black matrix is set on the color filter substrate, and its position corresponds to the shielding metal lines, data lines, and thin film transistors of the array substrate. When the color film substrate and the array substrate are accurately aligned with each other, the black matrix can block the shield. Light emitted from metal lines and data lines at any angle can effectively prevent light leakage.

In the actual production process of the display panel, due to the limitation of equipment accuracy and process conditions, it is difficult to accurately align the color film substrate and the array substrate, which will cause the position of the black matrix to deviate from the design position. When the substrate is impacted by an external force, the position of the black matrix is also deviated. The above two cases will cause light leakage defects between the shielded metal lines and the data lines, which will seriously affect the yield of the product. In order to solve the light leakage defect, the width of the black matrix is generally increased, but the wider black matrix will block the display area, reducing the transmittance and display brightness of the display panel.

Application content

An object of the present application is to provide an array substrate including, but not limited to, a technical problem of a light leakage defect between a shield metal line and a data line caused by a position of a black matrix deviating from a design position.

To solve the above technical problems, the technical solution adopted in the embodiments of the present application is to provide an array substrate, including:

First substrate

A metal shielding layer disposed on a surface of the first substrate;

An insulating layer is provided on the surface of the metal shielding layer and the first substrate exposed outside the metal shielding layer;

A first black light-shielding layer disposed on a surface of the insulating layer; and

A data line disposed on a surface of the first black light-shielding layer;

Wherein, the metal shielding layer includes a first shielding metal line, the first shielding metal line is provided on opposite sides of the data line, and the orthographic projection of the first black light-shielding layer on the first substrate The orthographic projections of the two first shielding metal lines on the first substrate that are opposite to the data lines partially overlap.

In one embodiment, the array substrate further includes:

A passivation layer disposed on the data line, the first black light-shielding layer exposed outside the data line, and the surface of the insulating layer exposed outside the first black light-shielding layer; and

The first conductive layer is disposed on a surface of the passivation layer.

In one embodiment, the orthographic projection of the first shielding metal line on the first substrate and the orthographic projection of the first conductive layer on the first substrate partially overlap.

In one embodiment, the metal shield layer further includes a second shield metal line, the second shield metal line is located on a bottom side of the data line, and the second shield metal line and the first shield metal line Crosswise, the orthographic projection of the first black light-shielding layer on the first substrate and the orthographic projection of the second shielding metal line on the first substrate intersect.

In one embodiment, the orthographic projection of the second shielding metal line on the first substrate and the orthographic projection of the first conductive layer on the first substrate partially overlap.

In one embodiment, the array substrate further includes:

A color resist layer is interposed between the passivation layer and the first conductive layer, and the color resist layer includes a red color resist block, a green color resist block, and a blue color resist block.

In one embodiment, the first conductive layer includes a plurality of pixel electrodes, and the red color block, the green color block, and the blue color block correspond to the pixel electrodes one to one, respectively.

In one embodiment, the array substrate further includes:

The thin film transistor is disposed on the first substrate and is electrically connected to the pixel electrode and the data line.

The array substrate provided by the embodiment of the present application has the beneficial effect that a first black light shielding layer is provided between the insulating layer and the data line, and the orthographic projection of the data line on the first substrate and the first The gap between the orthographic projection of the shielding metal line on the first substrate is completely blocked, thereby effectively solving the technical problem of light leakage defects between the shielding metal line and the data line due to the position of the black matrix deviating from the design position, reducing the The risk of light leakage from the array substrate increases the yield of the display panel.

Another object of the present application is to provide a display panel, including:

Color film substrate; and

The array substrate is opposite to and spaced from the color filter substrate;

The array substrate includes:

First substrate

A metal shielding layer disposed on a surface of the first substrate;

A data line disposed on a surface of the first black light-shielding layer;

In one embodiment, the display panel further includes:

The first conductive layer is disposed on a surface of the passivation layer.

In one embodiment, the color filter substrate includes:

Second substrate

A second black light-shielding layer is disposed on the bottom surface of the second substrate. The orthographic projection of the second black light-shielding layer on the first substrate and the orthography of the first conductive layer on the first substrate. Projections partially overlap; and

A second conductive layer is disposed on the bottom surface of the second black light-shielding layer and the second substrate exposed outside the second black light-shielding layer.

In one embodiment, the first black light-shielding layer and the second black light-shielding layer are black photoresist layers made of a carbon black material.

In one embodiment, the display panel further includes:

Liquid crystal is filled in a space between the first conductive layer and the second conductive layer.

In one embodiment, the first conductive layer and the second conductive layer are nano-indium tin metal oxide thin film layers, respectively.

A beneficial effect of the display panel provided in the embodiment of the present application is that an array substrate is used, and the orthographic projection of the data line on the first substrate and the orthographic projection of the first shield metal line on the first substrate are adopted by the first black light shielding layer. The gap between them is completely blocked, which effectively solves the technical problem of light leakage defects between the shielding metal line and the data line due to the deviation of the position of the black matrix from the design position, reduces the risk of light leakage from the array substrate, and improves the display panel. Yield rate.

Another object of the present application is to provide a display device, including:

Display panel; and

A backlight module configured to provide illumination for the display panel;

The display panel includes:

Color film substrate; and

The array substrate is opposite to and spaced from the color filter substrate;

The array substrate includes:

First substrate

A metal shielding layer disposed on a surface of the first substrate;

A data line disposed on a surface of the first black light-shielding layer;

A beneficial effect of the display device provided in the embodiment of the present application is that a display panel is adopted, and the orthographic projection of the data line on the first substrate and the orthographic projection of the first shield metal line on the first substrate are adopted by the first black light shielding layer. The gap between them is completely blocked, which effectively solves the technical problem of light leakage defects between the shielded metal lines and the data lines due to the position of the black matrix deviating from the design position, reduces the risk of light leakage in the display panel, and improves the display panel's The yield rate reduces the production cost of the display device.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present application. For some embodiments, for those of ordinary skill in the art, other drawings can be obtained according to these drawings without paying creative labor.

FIG. 1 is a schematic structural diagram of an array substrate according to an embodiment of the present application;

FIG. 2 is an enlarged schematic view of part A in FIG. 1; FIG.

3 is a schematic cross-sectional view in the direction of I-I in FIG. 2;

4 is an enlarged schematic view of a portion B in FIG. 1;

5 is a schematic cross-sectional view in the direction II-II in FIG. 4;

6 is a schematic cross-sectional view of the display panel in the I-I direction in FIG. 2;

FIG. 7 is a schematic structural diagram of a display device according to an embodiment of the present application.

Among them, each reference numeral in the figure:

1—display panel, 2—backlight module, 10—array substrate, 20—color film substrate, 30—liquid crystal, 11—first substrate, 12—metal shielding layer, 13—insulating layer, 14—first black light-shielding layer , 15- data line, 16- passivation layer, 17- color resist layer, 18- first conductive layer, 21- second substrate, 22- second black light-shielding layer, 23- second conductive layer, 100- thin film transistor , 180—pixel electrode, 121—first shielded metal wire, and 122—second shielded metal wire.

Embodiments of the invention

In order to make the technical problems, technical solutions, and beneficial effects to be more clearly understood in the present application, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and are not used to limit the application.

It should be noted that when a component is called "fixed to" or "disposed to" another component, it may be directly on another component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component. The orientations or positional relationships indicated by the terms "up", "down", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, and are for ease of description only, and do not indicate or imply the device referred to. Or the element must have a specific orientation, structure and operation in a specific orientation, so it cannot be understood as a limitation on this patent. For those of ordinary skill in the art, the specific meaning of the above terms can be understood according to specific circumstances. The terms "first" and "second" are only used for convenience of description, and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more, unless specifically defined otherwise.

Hereinafter, specific implementations of the array substrate, the display panel, and the display device provided in the embodiments of the present application will be described in detail with reference to the drawings. The sizes and shapes of the regions in the drawings do not reflect the true proportions, and the purpose is only to illustrate the content of the application.

Please refer to FIGS. 1 to 3. The array substrate 10 for a display panel 1 includes a first substrate 11, a metal shielding layer 12, an insulating layer 13, a first black light-shielding layer 14, and a data line 15, wherein the first substrate 11 A glass substrate; a metal shielding layer 12 is provided on the surface of the first substrate 11; an insulating layer 13 is provided on the surface of the metal shielding layer 12 and the first substrate 11 exposed outside the metal shielding layer 12; a first black light-shielding layer 14 The data line 15 is disposed on the surface of the first black light-shielding layer 14; here, the metal shielding layer 12 includes a first shielding metal line 121, and two opposite sides of each data line 15 are respectively A first shielding metal line 121 is provided; the orthographic projection of the first black light-shielding layer 14 on the first substrate 11 and the orthography of the two first shielding metal lines 121 on the opposite sides of the data line 15 on the first substrate 11 The projections partially overlap, that is, the first black light-shielding layer 14 extends from the bottom side of the data line 15 to the edge of the first shielding metal line 121 located on the side of the data line 15. It can be understood that there is a gap between the orthographic projection of the data line 15 on the first substrate 11 and the orthographic projection of the first shield metal line 121 on the first substrate 11, and the first black light shielding layer 14 blocks the gap.

The array substrate 10 provided in this application uses a first black light-shielding layer 14 provided between the insulating layer 13 and the data line 15. The orthographic projection of the data line 15 on the first substrate 11 and the first The gap between the orthographic projection of the shielding metal line 121 on the first substrate 11 is completely blocked, thereby effectively solving the technical problem of the light leakage defect between the shielding metal line and the data line due to the position of the black matrix deviating from the design position. The risk of light leakage from the array substrate 10 is reduced, and the yield rate of the display panel 1 is improved.

Referring to FIG. 3, in an embodiment of the array substrate provided in the present application, the above-mentioned array substrate 10 further includes a passivation layer 16 and a first conductive layer 18, wherein the passivation layer 16 is disposed on the data line 15 and is exposed on the data. The first black light-shielding layer 14 outside the line 15 and the surface of the insulating layer 13 exposed outside the first black light-shielding layer 14; the first conductive layer 18 is disposed on the surface of the passivation layer 16. Specifically, the first conductive layer 18 is used to form the pixel electrode 180, and the passivation layer 16 isolates the data line 15 from the first conductive layer 18, thereby effectively preventing the first conductive layer 18 from interfering with the data line during the conductive process. 15 The stability of the transmitted signal is affected.

Please refer to FIG. 3. In an embodiment of an array substrate provided in the present application, the orthographic projection of the first shielding metal line 121 on the first substrate 11 and the orthographic projection of the first conductive layer 18 on the first substrate 11 Partial overlap, that is, one edge of the first shield metal line 121 extends directly below the edge of the first conductive layer 18. In this way, the gap between the orthographic projection of the data line 15 on the first substrate 11 and the orthographic projection of the first conductive layer 18 on the first substrate 11 can be matched by the first black light shielding layer 14 and the first shielding metal line 121. Blocking, in this way, can avoid interference between pixels of different colors, without the need for an additional black light-shielding layer, reducing the process.

Please refer to FIG. 1, FIG. 4 and FIG. 5. In an embodiment of the array substrate provided in the present application, the metal shielding layer 12 further includes a second shielding metal line 122, and the second shielding metal line 122 is located on the data line 15. The bottom side, and the second shielding metal line 122 crosses the first shielding metal line 121, and at the same time, the orthographic projection of the first black light shielding layer 14 on the first substrate 11 and the second shielding metal line 122 on the first The orthographic projections on the substrate 11 intersect. In this way, since the first black light shielding layer 14 is located between the data line 15 and the second shield metal line 122, the distance between the data line 15 and the second shield metal line 122 can be increased, thereby effectively reducing the data line 15 The parasitic capacitance in the area overlapping with the second shielding metal line 122 can avoid the abnormal short circuit of the data line 15 and the second shielding metal line 122 resulting in a decrease in product yield.

Please refer to FIG. 5. In an embodiment of an array substrate provided in the present application, the orthographic projection of the second shielding metal line 122 on the first substrate 11 and the orthographic projection of the first conductive layer 18 on the first substrate 11 Partial overlap, that is, one side edge of the second shielding metal line 122 extends directly below the edge of the first conductive layer 18. In this way, the gap between the orthographic projection of the data line 15 on the first substrate 11 and the orthographic projection of the first conductive layer 18 on the first substrate 11 can be matched by the first black light shielding layer 14 and the second shielding metal line 122. Blocking, in this way, can avoid interference between pixels of different colors, without the need for an additional black light-shielding layer, reducing the process.

In an embodiment of the array substrate provided in the present application, the above-mentioned array substrate 10 further includes a color resist layer 17 sandwiched between the passivation layer 16 and the first conductive layer 18, that is, the color resist layer. 17 is disposed on the surface of the passivation layer 16, the first conductive layer 18 is disposed on the surface of the color resist layer 17, and the color resist layer 17 includes a red color resist block, a green color resist block, and a blue color resist block. Specifically, the red, green, and blue color blocks are arranged in a preset order. At the same time, the first conductive layer 18 includes a plurality of pixel electrodes 180, the red, green, and blue color blocks. The color resistance blocks correspond to the pixel electrodes 180 one by one. In this way, by adjusting the voltage of the pixel electrodes 180, the red color resistance blocks, the green color resistance blocks, and the blue color resistance blocks that pass through the red color resistance blocks and the blue color resistance blocks can be adjusted one by one. Brightness of colored light.

In an embodiment of the array substrate provided in the present application, the above-mentioned array substrate 10 further includes a thin film transistor 100. The thin film transistor 100 is disposed on the first substrate 11, and the thin film transistor 100 is electrically connected to the pixel electrode 180 and the data line 15. It functions as a pixel switch for connecting the pixel electrode 180 to the driving circuit and the data line 15 to the driving circuit.

Referring to FIG. 6, the present application further provides a display panel 1 including a color filter substrate 20 and the above-mentioned array substrate 10. The array substrate 10 is opposite to the color filter substrate 20 and is spaced apart.

The display panel 1 provided in the present application employs an array substrate 10, and an orthographic projection of the data line 15 on the first substrate 11 and an orthographic projection of the first shield metal line 121 on the first substrate 11 through the first black light shielding layer 14. The gap between them is completely blocked, thereby effectively solving the technical problem of the light leakage defect between the shielding metal line and the data line due to the deviation of the position of the black matrix from the design position, reducing the risk of light leakage from the array substrate 10 and improving the display panel 1 yield.

Please refer to FIG. 6. In an embodiment of the display panel provided in the present application, the color filter substrate 20 includes a second substrate 21, a second black light-shielding layer 22, and a second conductive layer 23, wherein the second substrate 21 is glass. A substrate; the second black light-shielding layer 22 is disposed on the bottom surface of the second substrate 21, and the orthographic projection of the second black light-shielding layer 22 on the first substrate 11 and the orthography of the first conductive layer 18 on the first substrate 11 The projections partially overlap, that is, one side edge of the second black light-shielding layer 22 extends directly above the edge of the first conductive layer 18; the second conductive layer 23 is disposed on the second black light-shielding layer 22 and is exposed outside the second black light-shielding layer 22 The bottom surface of the second substrate 21 is used to form a common electrode. In this way, the second black light-shielding layer 22 cooperates with the first black light-shielding layer 14 even if the color film substrate 20 and the array substrate 10 cannot be accurately aligned, or the relative position of the color film substrate 20 and the array substrate 10 is affected by an external force. In the shift, no light leakage defect will be generated between the metal shielding layer 12 and the data line 15 to ensure the yield of the display panel 1.

In an embodiment of the display panel provided in the present application, the first black light-shielding layer 14 and the second black light-shielding layer 22 are black photoresist layers made of a carbon black material, which can effectively block light from passing through.

Please refer to FIG. 6. In an embodiment of the display panel provided in the present application, the display panel 1 further includes a liquid crystal 30, and the liquid crystal 30 is filled in a space between the first conductive layer 18 and the second conductive layer 23, that is, the liquid crystal 30 It is housed between the pixel electrode 180 and the common electrode, and controls the orientation of the liquid crystal molecules in the liquid crystal 30 by applying a voltage to the first conductive layer 18 and the second conductive layer 23, thereby achieving light transmission control.

In an embodiment of the display panel provided in the present application, the first conductive layer 18 and the second conductive layer 23 may be selected as indium tin metal oxide (ITO) thin film layers, which have transparent characteristics. , And has good electrical conductivity.

The present application further provides a display device including the above-mentioned display panel 1 and a backlight module 2, wherein the backlight module 2 is used to provide illumination for the display panel 1.

The display device provided in the present application uses a display panel 1. The first projection of the data line 15 on the first substrate 11 and the orthographic projection of the first shield metal line 121 on the first substrate 11 through the first black light-shielding layer 14. The gap is completely blocked, which effectively solves the technical problem of light leakage defects between the shielding metal line and the data line due to the position of the black matrix deviating from the design position, reduces the risk of light leakage in the display panel 1, and improves the display panel 1. The yield rate reduces the production cost of the display device.

The above description is only an optional embodiment of this application, and is not intended to limit this application. Any modification, equivalent replacement, and improvement made within the spirit and principle of this application shall be included in the protection of this application. Within range.

Claims

Array substrate, including:

First substrate

A metal shielding layer disposed on a surface of the first substrate;

An insulating layer is provided on the surface of the metal shielding layer and the first substrate exposed outside the metal shielding layer;

A first black light-shielding layer disposed on a surface of the insulating layer; and

A data line disposed on a surface of the first black light-shielding layer;

Wherein, the metal shielding layer includes a first shielding metal line, the first shielding metal line is provided on opposite sides of the data line, and the orthographic projection of the first black light-shielding layer on the first substrate The orthographic projections of the two first shielding metal lines on the first substrate that are opposite to the data lines partially overlap.
The array substrate according to claim 1, further comprising:

A passivation layer disposed on the data line, the first black light-shielding layer exposed outside the data line, and the surface of the insulating layer exposed outside the first black light-shielding layer; and

The first conductive layer is disposed on a surface of the passivation layer.
The array substrate according to claim 2, wherein an orthographic projection of the first shielding metal line on the first substrate and an orthographic projection of the first conductive layer on the first substrate partially overlap.
The array substrate according to claim 3, wherein the metal shielding layer further comprises a second shielding metal line, the second shielding metal line is located on a bottom side of the data line, and the second shielding metal line and the The first shielding metal line intersects, and the orthographic projection of the first black light shielding layer on the first substrate intersects with the orthographic projection of the second shielding metal line on the first substrate.
The array substrate of claim 4, wherein an orthographic projection of the second shielding metal line on the first substrate and an orthographic projection of the first conductive layer on the first substrate partially overlap.
The array substrate according to claim 2, further comprising:

A color resist layer is interposed between the passivation layer and the first conductive layer, and the color resist layer includes a red color resist block, a green color resist block, and a blue color resist block.
The array substrate according to claim 6, wherein the first conductive layer includes a plurality of pixel electrodes, the red color block, the green color block, and the blue color block are respectively connected to the pixel electrode. One-to-one correspondence.
The array substrate according to claim 7, further comprising:

The thin film transistor is disposed on the first substrate and is electrically connected to the pixel electrode and the data line.
Display panel including:

Color film substrate; and

The array substrate is opposite to and spaced from the color filter substrate;

The array substrate includes:

First substrate

A metal shielding layer disposed on a surface of the first substrate;

An insulating layer is provided on the surface of the metal shielding layer and the first substrate exposed outside the metal shielding layer;

A first black light-shielding layer disposed on a surface of the insulating layer; and

A data line disposed on a surface of the first black light-shielding layer;

Wherein, the metal shielding layer includes a first shielding metal line, the first shielding metal line is provided on opposite sides of the data line, and the orthographic projection of the first black light-shielding layer on the first substrate The orthographic projections of the two first shielding metal lines on the first substrate that are opposite to the data lines partially overlap.
The display panel according to claim 9, further comprising:

A passivation layer disposed on the data line, the first black light-shielding layer exposed outside the data line, and the surface of the insulating layer exposed outside the first black light-shielding layer; and

The first conductive layer is disposed on a surface of the passivation layer.
The display panel according to claim 10, wherein the orthographic projection of the first shielding metal line on the first substrate and the orthographic projection of the first conductive layer on the first substrate partially overlap.
The display panel according to claim 11, wherein the metal shielding layer further comprises a second shielding metal line, the second shielding metal line is located on a bottom side of the data line, and the second shielding metal line and the The first shielding metal line intersects, and the orthographic projection of the first black light shielding layer on the first substrate intersects with the orthographic projection of the second shielding metal line on the first substrate.
The display panel of claim 12, wherein an orthographic projection of the second shielding metal line on the first substrate and an orthographic projection of the first conductive layer on the first substrate partially overlap.
The display panel according to claim 13, wherein the color filter substrate comprises:

Second substrate

A second black light-shielding layer is disposed on the bottom surface of the second substrate. The orthographic projection of the second black light-shielding layer on the first substrate and the orthography of the first conductive layer on the first substrate. Projections partially overlap; and

A second conductive layer is disposed on the bottom surface of the second black light-shielding layer and the second substrate exposed outside the second black light-shielding layer.
The display panel according to claim 14, wherein the first black light-shielding layer and the second black light-shielding layer are black photoresist layers made of a carbon black material.
The display panel according to claim 14, further comprising:

Liquid crystal is filled in a space between the first conductive layer and the second conductive layer.
The display panel of claim 16, wherein the first conductive layer and the second conductive layer are nano-indium tin metal oxide thin film layers, respectively.
Display device including:

Display panel; and

A backlight module configured to provide illumination for the display panel;

The display panel includes:

Color film substrate; and

The array substrate is opposite to and spaced from the color filter substrate;

The array substrate includes:

First substrate

A metal shielding layer disposed on a surface of the first substrate;

An insulating layer is provided on the surface of the metal shielding layer and the first substrate exposed outside the metal shielding layer;

A first black light-shielding layer disposed on a surface of the insulating layer; and

A data line disposed on a surface of the first black light-shielding layer;

Wherein, the metal shielding layer includes a first shielding metal line, the first shielding metal line is provided on opposite sides of the data line, and the orthographic projection of the first black light-shielding layer on the first substrate The orthographic projections of the two first shielding metal lines on the first substrate that are opposite to the data lines partially overlap.