WO2020215617A1

WO2020215617A1 - Display device

Info

Publication number: WO2020215617A1
Application number: PCT/CN2019/110671
Authority: WO
Inventors: 卢改平
Original assignee: 武汉华星光电技术有限公司
Priority date: 2019-04-26
Filing date: 2019-10-11
Publication date: 2020-10-29
Also published as: CN109981855A

Abstract

Disclosed is a display device; a first scan line and a first data line in a first region are taken as a transparent lead; the first scan line is electrically connected to a second scan line; the first data line is electrically connected to a second data line; and a blind via is arranged between a camera and the transparent lead so as to cause the first region to be a transparent region, such that the border between the camera and the display region of the display device approaches zero.

Description

Display device

Technical field

This application relates to the field of display technology, and in particular to a display device.

Background technique

As mobile display technology plays an increasingly important role in life applications, the diversity of mobile phones also tends to diversify, more and more mobile phones adopt full-screen designs, and under-screen camera technology has become a trend. It can not only guarantee the normal display effect, but also ensure the normal use of the camera, but the space reserved for the camera is bound to bring other limitations of the design.

As shown in FIGS. 1 and 2, FIG. 1 is a schematic diagram of a light-transmitting area formed by digging holes in the surface of a conventional display panel 100, and FIG. 2 is a partial enlarged schematic diagram of FIG. The display panel 100 forms a light-transmitting area by digging holes, and the camera is arranged on one side of the display panel 100 and corresponding to the light-transmitting area. Since the display panel 100 has a hole dug to form a light-transmitting area, the opaque traces such as the data line D and the scan line S adopt a winding design. The winding design makes the first edge a of the display area AA and the upper hole of the display panel 100 A frame (about 0.8 mm) is formed between the second edge b of the, which causes the frame area around the camera to increase, and the increase of the edge frame area of the display area requires additional space.

Therefore, it is necessary to propose a technical solution to ensure that the position of the display panel corresponding to the camera is the light-transmitting area while reducing the frame of the camera.

technical problem

The purpose of the present application is to provide a display device that has a light-transmitting area corresponding to a camera and can make the border between the camera and the display area of the display device approach zero.

Technical solutions

A display device comprising a display panel and a camera,

The display panel has a first area and a second area located at the periphery of the first area, the first area is provided with a first scan line and a first data line, and the second area is provided with a second scan line and The second data line, the first scan line is electrically connected to the second scan line, the first data line is electrically connected to the second data line, and the first scan line is electrically connected to the first scan line. The data lines are transparent wires;

The display panel further has a blind hole, and the blind hole is located in the first area and between the transparent wire and the camera;

The camera is arranged on one side of the display panel and corresponding to the first area;

The preparation material of the transparent wire is any one of indium tin oxide and indium zinc oxide.

In the above display device, the display panel includes:

A substrate, the substrate having the first area and the second area;

The second scan line formed in the second area of the substrate;

A first insulating layer formed in the second area of the substrate and covering the second scan line;

The second data line formed on the first insulating layer and located in the second area;

A second insulating layer formed in the second area and covering the second data line;

All formed in the first region and electrically connected to the second scan line through the via holes that penetrate the second insulating layer of the second region and the first insulating layer of the second region The first scan line;

A third insulating layer formed on the second insulating layer and covering the first scan line;

Formed on the third insulating layer of the first region and passing through the third insulating layer of the second region and the second insulating layer of the second region to communicate with the The first data line connected to the second data line.

In the above display device, the display device further includes a common electrode formed on the second insulating layer in the second region and a pixel electrode formed on the third insulating layer in the second region, The first scan line and the common electrode are formed in the same layer and the same process, and the first data line and the pixel electrode are formed in the same layer and the same process.

In the above display device, the vertical projections of the first scan line and the first data line on the substrate perpendicularly intersect each other, and both ends of the first scan line pass through the second area. The via holes of the first insulating layer and the second insulating layer of the second area are electrically connected to the second scan lines on both sides of the first area, and both ends of the first data line The second data lines on both sides of the first area are electrically connected through via holes penetrating the third insulating layer of the second area and the second insulating layer of the second area.

In the above display device, the first insulating layer and the third insulating layer are both inorganic insulating layers, and the second insulating layer is an organic insulating layer.

In the above display device, the material for preparing the second scan line and the second data line is at least one of molybdenum, aluminum, titanium, and copper.

In the above display device, the vertical projection of the camera on the display panel coincides with the first area.

In the above display device, the first area is circular.

In the above display device, the second area is a display area, and the first area is a non-display area.

A display device includes a display panel and a camera. The display panel has a first area and a second area located outside the first area. The first area is provided with a first scan line and a first scan line. A data line, the second area is provided with a second scan line and a second data line, the first scan line and the second scan line are electrically connected, the first data line and the second data line Electrically connected, the first scan line and the first data line are both transparent wires;

The camera is arranged on one side of the display panel and corresponding to the first area.

In the above display device, the display panel includes:

A substrate, the substrate having the first area and the second area;

The second scan line formed in the second area of the substrate;

In the above display device, the first area is circular.

Beneficial effect

The present application provides a display device. The first scan line and the first data line in the first area are transparent wires, the first scan line is electrically connected to the second scan line, and the first data line is electrically connected to the second data line. A blind hole is arranged between the camera and the transparent wire to make the first area a transparent area, and at the same time make the border between the camera and the display area of the display device approach zero.

Description of the drawings

FIG. 1 is a schematic diagram of a light-transmitting area formed by digging holes in the surface of a traditional display panel;

Figure 2 is a partial enlarged schematic diagram of Figure 1;

3 is a schematic diagram of a display device according to an embodiment of the application;

4 is a cross-sectional view taken along the line C-C of the display device shown in FIG. 3;

FIG. 5 is a cross-sectional view taken along the line D-D of the display device shown in FIG. 3;

FIG. 6 is a partial enlarged schematic diagram of the display device shown in FIG. 3.

Reference signs:

100, 200 display panel; 300 camera; data line D; scan line S; first edge a; second edge b; AA display area; 200a first area; 200b second area; 200c blind hole; 20 substrate;

21 second scan line; 22 first insulating layer; 23 second data line; 24 second insulating layer;

25 third insulating layer; 26 first scan line; 27 first data line; 28 common electrode; 29 pixel electrode.

Embodiments of the invention

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of this application.

Please refer to FIG. 3, FIG. 4 and FIG. 5. FIG. 3 is a schematic diagram of a display device according to an embodiment of the application. FIG. 4 is a cross-sectional view taken along the CC line of the display device shown in FIG. 3, and FIG. Sectional view of DD tangent. The display device is a fringe field switching (Fringe Field Switching, FFS) type liquid crystal display or a plane switching (In-Plane Switching, IPS) type liquid crystal display. In other embodiments, the display device may also be a vertical alignment (VA, Vertical Alignment) type liquid crystal display. The display device includes a display panel 200 and a camera 300.

The display panel 200 has a first area 200a and a second area 200b located at the periphery of the first area 200a. The first area 200 a is provided with a first scan line 26 and a first data line 27. The second area 200b is provided with a second scan line 21 and a second data line 23. The first data line 27 and the second data line 23 are electrically connected, and the first scan line 26 and the second scan line 21 are electrically connected. Both the first scan line 26 and the first data line 27 are transparent conductive lines. The display panel 200 also has a blind hole 200c, which is located in the first area 200a and between the transparent wires (the first scan line 26 and the first data line 27) and the camera 300. The camera 300 is located on one side of the display panel 200 and is provided corresponding to the first area 200a.

The display device in the embodiment of the present application uses transparent conductive lines for the first scan line and the first data line in the first area, the first scan line is electrically connected to the second scan line, and the first data line is electrically connected to the second data line. , And a blind hole is arranged between the camera and the transparent wire to make the first area a transparent area, and at the same time make the border between the camera and the display area of the display device approach zero.

The display panel 200 includes a substrate 20, a second scan line 21, a first insulating layer 22, a second data line 23, a second insulating layer 24, a first scan line 26, a third insulating layer 25, a first data line 27, a blind The hole 200c, the pixel electrode 29, and the common electrode 28.

The substrate 20 is a transparent substrate, and the transparent substrate may be a glass substrate. The substrate 20 has a first area 200a and a second area 200b, and the second area 200b is located at the periphery of the first area 200a. Specifically, the first area 200a is a non-display area, and the second area 200b is a display area.

The second scan line 21 is formed in the second area 200b of the substrate 20 and located on both sides of the first area 200a. The preparation material of the second scan line 21 is at least one of molybdenum, aluminum, titanium and copper. Before forming the second scan line 21, a buffer layer, an active layer formed on the buffer layer, and a gate insulating layer formed on the active layer are also formed on the substrate 20. The second scan line 21 and the gate of the thin film transistor (not shown) formed in the second region 200b are arranged in the same layer.

The first insulating layer 22 is an interlayer dielectric (IDL), which is used to insulate the second scan line 21 and the second data line 23. The first insulating layer 22 is formed in the second region 200 b and covers the second scan line 21. The first insulating layer 22 is an inorganic insulating layer, and the material of the first insulating layer 22 is at least one of silicon nitride and silicon oxide.

The second data line 23 is formed on the first insulating layer 22 and is located in the second area 200b, and the second data line 23 is located on both sides of the first area 200a. The preparation material of the second data line 23 is at least one of molybdenum, aluminum, titanium and copper. The vertical projections of the second data line 23 and the second scan line 21 on the substrate 20 perpendicularly intersect each other. The second data line 23 is arranged in the same layer as the source and drain electrodes of the thin film transistor formed in the second region 200b.

The second insulating layer 24 is a planarization layer, which is used to level the surface of the substrate 20 on which the thin film transistor is formed. The planarization layer may be an organic insulating layer. The organic insulating layer is a photoresist, a polyimide layer, or a polyacrylate layer. The second insulating layer 24 is formed in the second region 200 b and covers the second data line 23.

The first scan line 26 is formed in the first area 200 a and is electrically connected to the second scan line 21 through a via hole that penetrates the second insulating layer 24 of the second area 200 b and the first insulating layer 22 of the second area 200 b. Specifically, both ends of the first scan line 26 pass through the via holes that penetrate the first insulating layer 22 of the second region 200b and the second insulating layer 24 of the second region 200b and the second scan lines 21 on both sides of the first region 200a. Connection, that is, the first scan line 26 acts as a transparent bridging line to bridge the second scan lines 21 on both sides of the first area 200a to avoid metal winding design.

The third insulating layer 25 is a passivation layer. The third insulating layer 25 is formed on the second insulating layer 24 and covers the first scan line 26 of the first region 200a, and the third insulating layer 25 is formed on the first region 200a and the second region 200b. The third insulating layer 25 is used to insulate the pixel electrode 29 and the common electrode 28 from each other. The third insulating layer 25 is an inorganic insulating layer, and the material of the third insulating layer 25 is at least one of silicon nitride and silicon oxide.

The first data line 27 is formed on the third insulating layer 25 of the first region 200a and passes through the via hole and the second data line passing through the third insulating layer 25 of the second region 200b and the second insulating layer 24 of the second region 200b 23 connection. Specifically, both ends of the first data line 27 pass through the via holes that penetrate the third insulating layer 25 of the second region 200b and the second insulating layer 24 of the second region 200b to connect with the second data lines on both sides of the first region 200a. 23 connection, that is, the first data line 27 is used as a transparent bridge to bridge the second data line 23 on both sides of the first area 200a to avoid metal winding design.

The blind hole 200c is located in the first region 200a and penetrates the first insulating layer 22 and the second insulating layer 24. It should be noted that the blind hole 200c also penetrates other layers between the first scan line 26 and the substrate except the buffer layer, including the gate insulating layer, the active layer, etc., so that in the second area 200a, the transparent wire There is a transparent area between (including the first data line 27 and the first scan line 26) and the substrate 20 to avoid forming too many layers in the first area 200a to affect the effect of light incident on the camera 300.

Please refer to FIG. 6, which is a partial enlarged schematic diagram of the display device shown in FIG. The vertical projections of the first scan line 26 and the first data line 27 on the substrate 20 perpendicularly intersect each other. The edge of the first area 200a coincides with the edge of the second area 200b, so that there is no border between the camera 300 and the display area 200b of the display device.

4 and 5, the common electrode 28 is formed on the second insulating layer 24 of the second region 200b, and the first scan line 26 and the common electrode 28 are formed in the same layer and in the same process. The pixel electrode 29 is formed on the third insulating layer 25 in the second region 200b, and the first data line 27 and the pixel electrode 29 are formed in the same layer and in the same process. Both the common electrode 28 and the pixel electrode 29 are transparent electrodes. Both the first scan line 26 and the first data line 27 are transparent wires, and the transparent wires are made of any one of indium tin oxide and indium zinc oxide.

The descriptions of the above embodiments are only used to help understand the technical solutions and core ideas of this application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or modify some of the technologies. The features are equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

A display device, wherein the display device includes a display panel and a camera,

The display panel has a first area and a second area located at the periphery of the first area, the first area is provided with a first scan line and a first data line, and the second area is provided with a second scan line and The second data line, the first scan line is electrically connected to the second scan line, the first data line is electrically connected to the second data line, and the first scan line is electrically connected to the first scan line. The data lines are transparent wires;

The display panel further has a blind hole, and the blind hole is located in the first area and between the transparent wire and the camera;

The camera is arranged on one side of the display panel and corresponding to the first area;

The preparation material of the transparent wire is any one of indium tin oxide and indium zinc oxide.
The display device according to claim 1, wherein the display panel comprises:

A substrate, the substrate having the first area and the second area;

The second scan line formed in the second area of the substrate;

A first insulating layer formed in the second area of the substrate and covering the second scan line;

The second data line formed on the first insulating layer and located in the second area;

A second insulating layer formed in the second area and covering the second data line;

All formed in the first area and electrically connected to the second scan line through the second insulating layer of the second area and the via hole of the first insulating layer of the second area The first scan line;

A third insulating layer formed on the second insulating layer and covering the first scan line;

Formed on the third insulating layer of the first region and passing through the third insulating layer of the second region and the second insulating layer of the second region to communicate with the The first data line connected to the second data line.
3. The display device of claim 2, wherein the display device further comprises a common electrode formed on the second insulating layer in the second region and the third insulating layer formed in the second region The pixel electrode on the layer, the first scan line and the common electrode are formed in the same layer and the same process, and the first data line and the pixel electrode are formed in the same layer and the same process.
4. The display device of claim 2, wherein the vertical projections of the first scan line and the first data line on the substrate intersect each other perpendicularly, and both ends of the first scan line pass through the The via holes of the first insulating layer in the second region and the second insulating layer in the second region are respectively electrically connected to the second scan lines on both sides of the first region, and the first region Both ends of a data line pass through the via holes that penetrate the third insulating layer of the second area and the second insulating layer of the second area to connect with the second insulating layer on both sides of the first area. The data line is electrically connected.
3. The display device according to claim 2, wherein the first insulating layer and the third insulating layer are both inorganic insulating layers, and the second insulating layer is an organic insulating layer.
The display device according to claim 1, wherein the material for preparing the second scan line and the second data line is at least one of molybdenum, aluminum, titanium, and copper.
The display device according to claim 1, wherein the vertical projection of the camera on the display panel coincides with the first area.
The display device according to claim 7, wherein the first area is circular.
The display device according to claim 1, wherein the second area is a display area, and the first area is a non-display area.
A display device, wherein the display device includes a display panel and a camera,

The display panel has a first area and a second area located at the periphery of the first area, the first area is provided with a first scan line and a first data line, and the second area is provided with a second scan line and The second data line, the first scan line is electrically connected to the second scan line, the first data line is electrically connected to the second data line, and the first scan line is electrically connected to the first scan line. The data lines are transparent wires;

The display panel further has a blind hole, and the blind hole is located in the first area and between the transparent wire and the camera;

The camera is arranged on one side of the display panel and corresponding to the first area.
The display device according to claim 10, wherein the display panel comprises:

A substrate, the substrate having the first area and the second area;

The second scan line formed in the second area of the substrate;

A first insulating layer formed in the second area of the substrate and covering the second scan line;

The second data line formed on the first insulating layer and located in the second area;

A second insulating layer formed in the second area and covering the second data line;

All formed in the first area and electrically connected to the second scan line through the second insulating layer of the second area and the via hole of the first insulating layer of the second area The first scan line;

A third insulating layer formed on the second insulating layer and covering the first scan line;

Formed on the third insulating layer of the first region and passing through the third insulating layer of the second region and the second insulating layer of the second region to communicate with the The first data line connected to the second data line.
11. The display device of claim 11, wherein the display device further comprises a common electrode formed on the second insulating layer in the second region and the third insulating layer formed in the second region The pixel electrode on the layer, the first scan line and the common electrode are formed in the same layer and the same process, and the first data line and the pixel electrode are formed in the same layer and the same process.
11. The display device of claim 11, wherein the vertical projections of the first scan line and the first data line on the substrate perpendicularly intersect each other, and both ends of the first scan line pass through the The via holes of the first insulating layer in the second region and the second insulating layer in the second region are respectively electrically connected to the second scan lines on both sides of the first region, and the first region Both ends of a data line pass through the via holes that penetrate the third insulating layer of the second area and the second insulating layer of the second area to connect with the second insulating layer on both sides of the first area. The data line is electrically connected.
11. The display device of claim 11, wherein the first insulating layer and the third insulating layer are both inorganic insulating layers, and the second insulating layer is an organic insulating layer.
10. The display device of claim 10, wherein the second scan line and the second data line are made of at least one of molybdenum, aluminum, titanium, and copper.
10. The display device of claim 10, wherein the vertical projection of the camera on the display panel coincides with the first area.
The display device of claim 16, wherein the first area is circular.
11. The display device according to claim 10, wherein the second area is a display area and the first area is a non-display area.