CN-117311536-B - Touch display structure and display device

Abstract

The disclosure relates to the technical field of display, and in particular relates to a touch display structure and a display device, which are used for optimizing the touch effect and the display effect of the display device. The touch display structure comprises a light-emitting substrate and a touch structure arranged on at least one side of the light-emitting substrate. In the touch structure, two adjacent first sub-touch channels in the same first touch channel are electrically connected. Two adjacent second sub-touch channels in the same second touch channel are electrically connected. The touch structure comprises a plurality of metal wires, and the metal wires are mutually intersected to form a plurality of metal grids. The light emitting substrate includes a plurality of sub-pixels. The orthographic projection of the luminous areas of at least two sub-pixels on the reference surface is positioned in the orthographic projection range of the same metal grid on the reference surface. The touch display structure can improve the light transmittance of the touch structure, optimize the display effect of the display device, reduce the resistance of the touch structure and ensure the touch effect of the display device.

Inventors

• ZHAO ERJIN
• YAN JUN
• JIANG ZHILIANG
• HU MING

Assignees

• 京东方科技集团股份有限公司
• 成都京东方光电科技有限公司

Dates

Publication Date

20260508

Application Date

20220624

Claims (20)

1. 1. The touch display structure is characterized by comprising a light-emitting substrate and a touch structure arranged on at least one side of the light-emitting substrate; The touch structure comprises a plurality of first touch channels extending along a first direction and a plurality of second touch channels extending along a second direction, wherein the first direction and the second direction are mutually intersected; Wherein at least one first touch channel comprises a plurality of adjacent first sub-touch channels, each first sub-touch channel comprises a plurality of first touch electrodes which are arranged along the first direction and are electrically connected in sequence, and in the same first touch channel, two adjacent first sub-touch channels are electrically connected, and/or, The at least one second touch channel comprises a plurality of adjacent second sub-touch channels, wherein each second sub-touch channel comprises a plurality of second touch electrodes which are arranged along the second direction and are electrically connected in sequence; the touch structure comprises a plurality of metal wires, and the metal wires are mutually intersected to form a plurality of metal grids; The light-emitting substrate comprises a plurality of sub-pixels, wherein each sub-pixel comprises a light-emitting area, orthographic projections of the light-emitting areas of at least two sub-pixels on a reference plane, which is positioned in the orthographic projection range of the same metal grid on the reference plane, wherein the reference plane is the plane where the light-emitting substrate is positioned; The light emitting substrate includes a plurality of pixel units, each including a plurality of sub-pixels capable of emitting light of different colors; The metal grid is positioned in the orthographic projection range of the reference plane, and the orthographic projection of the luminous areas of at least two sub-pixels in the plurality of sub-pixels of the pixel unit is positioned in the orthographic projection range of the same metal grid on the reference plane.
2. 2. The touch display structure according to claim 1, wherein, along the second direction, first touch electrodes in two adjacent first sub-touch channels are arranged in one-to-one correspondence in the same first touch channel, and at least one pair of the correspondingly arranged first touch electrodes are electrically connected.
3. 3. The touch display structure according to claim 2, wherein the first touch channel further comprises a first connection portion, at least one pair of correspondingly disposed first touch electrodes are electrically connected through the first connection portion, and the first connection portion extends substantially along the second direction.
4. 4. The touch display structure according to claim 1, wherein, along the first direction, the second touch electrodes in two adjacent second sub-touch channels are arranged in a one-to-one correspondence manner in the same second touch channel, and at least one pair of the second touch electrodes arranged in a corresponding manner are electrically connected.
5. 5. The touch display structure according to claim 4, wherein the second touch channel further comprises a second connection portion, at least one pair of correspondingly disposed second touch electrodes are electrically connected through the second connection portion, and the second connection portion extends along the first direction.
6. 6. The touch display structure of claim 1, wherein the first touch channel comprises a plurality of first connection portions and the second touch channel comprises a plurality of second connection portions, at least one first connection portion and at least one second connection portion intersecting.
7. 7. The touch display structure according to claim 6, comprising a first conductive layer, an insulating layer, and a second conductive layer stacked together, wherein the insulating layer is located between the first conductive layer and the second conductive layer, and a via hole is provided in the insulating layer; the first touch electrode and the second touch electrode are positioned on the first conductive layer; the first connecting part is positioned on the first conductive layer, the second connecting part is positioned on the second conductive layer and is electrically connected with the corresponding second touch electrode through the via hole, or The second connecting part is positioned on the first conductive layer, the first connecting part is positioned on the second conductive layer, and the first connecting part is electrically connected with the corresponding first touch electrode through the via hole.
8. 8. The touch display structure according to claim 1, wherein the first touch channel further comprises a third connection portion, and any two adjacent first touch electrodes are electrically connected through the third connection portion along the first direction; The second touch channel further comprises a fourth connecting part, and any two adjacent second touch electrodes are electrically connected through the fourth connecting part along the second direction.
9. 9. The touch display structure of claim 8, wherein the first touch electrode and the second touch electrode are each substantially diamond-shaped electrodes; The first touch channel is located in a first rectangular area extending along the first direction, the second touch channel is located in a second rectangular area extending along the second direction, and a rectangular area where the first rectangular area and the second rectangular area intersect is a touch unit area; the third connecting part and the fourth connecting part are intersected to form a first connecting structure; At least two first connection structures are arranged in the touch control unit area.
10. 10. The touch display structure of claim 9, wherein the first touch channel comprises a first connection portion and the second touch channel comprises a second connection portion; the first connecting part and the second connecting part are intersected to form a second connecting structure; At least one second connecting structure is arranged in the touch control unit area.
11. 11. The touch display structure according to claim 10, wherein the touch unit area includes at least one first touch electrode and/or the touch unit area includes at least one second touch electrode.
12. 12. The touch display structure according to claim 11, wherein the touch unit area includes two first touch electrodes located in the same first sub-touch channel and disposed adjacent to each other, and two second touch electrodes located in the same second sub-touch channel and disposed adjacent to each other; wherein, in the two first touch electrodes, each first touch electrode is arranged adjacent to the two second touch electrodes respectively.
13. 13. The touch display structure according to claim 8, wherein the first touch electrode, the second touch electrode, the third connection portion, and the fourth connection portion are each formed of a plurality of the metal meshes; In the case that the first touch channel includes a first connection portion and/or the second touch channel includes a second connection portion, the first connection portion and/or the second connection portion is formed of a plurality of the metal grids.
14. 14. The touch display structure according to claim 1, wherein the pixel unit includes one sub-pixel capable of emitting red light, one sub-pixel capable of emitting blue light, and two sub-pixels capable of emitting green light; And the orthographic projection of the luminous areas of all the sub-pixels in the pixel unit on the reference plane is positioned in the orthographic projection range of the same metal grid on the reference plane.
15. 15. The touch display structure of claim 14, wherein the plurality of sub-pixels are arranged in GGRB.
16. 16. The touch display structure according to claim 1, wherein the pixel unit includes one sub-pixel capable of emitting red light, one sub-pixel capable of emitting blue light, and one sub-pixel capable of emitting green light; orthographic projection of the light emitting areas of all the sub-pixels in the pixel unit on the reference plane, within the range of orthographic projection of the same metal grid on the reference plane, or In the pixel unit, the orthographic projection of the luminous area of the sub-pixel capable of emitting red light on the reference surface is positioned in the orthographic projection range of one metal grid on the reference surface, and the orthographic projection of the luminous area of the sub-pixel capable of emitting blue light and the orthographic projection of the luminous area of the sub-pixel capable of emitting green light on the reference surface are positioned in the orthographic projection range of the other metal grid on the reference surface.
17. 17. The touch display structure of claim 16, wherein the plurality of sub-pixels are arranged in Real RGB.
18. 18. The touch display structure according to any one of claims 1 to 13, wherein the plurality of metal grids comprise a plurality of first sub-grid groups and a plurality of second sub-grid groups, the first sub-grid groups and the second sub-grid groups being alternately arranged; The method comprises the steps of carrying out forward projection on a reference plane on luminous areas of partial sub-pixels in a plurality of sub-pixels of a pixel unit, wherein the forward projection is positioned in the range of the forward projection of the same first sub-grid on the reference plane, and the forward projection is positioned in the range of the forward projection of the luminous areas of all sub-pixels in the pixel unit on the reference plane, and the same second sub-grid on the reference plane.
19. 19. The touch display structure according to claim 1, wherein the metal lines extend in a straight line, the metal grid formed by the plurality of metal lines crossing each other is rectangular, and/or, The metal wires extend in a fold line, and the metal grids formed by the mutual intersection of the metal wires are polygonal.
20. 20. The touch display structure according to claim 1, wherein a plurality of metal lines are disposed between the light emitting regions of at least one pair of adjacent sub-pixels, and the plurality of metal lines are electrically connected to each other.

Description

Touch display structure and display device Technical Field The disclosure relates to the technical field of display, and in particular relates to a touch display structure and a display device. Background With the continuous development of electronic products, the display device with the touch control function and the display function can realize simple and flexible man-machine interaction, so that the display device is widely applied. AMOLED (Active Matrix Organic Light-Emitting Diode) display device can realize full screen, narrow frame, high resolution, curly wearing, folding, etc., and becomes the important development direction in the display technology field. Disclosure of Invention The embodiment of the disclosure provides a touch display structure and a display device, which aim to increase the light transmittance of the touch structure, prevent the touch structure from shielding a light-emitting path of a light-emitting substrate, thereby improving the display effect of the display device, and simultaneously reduce the resistance of the touch structure and prevent the touch effect of the touch structure from being reduced due to overhigh resistance. In order to achieve the above object, the embodiments of the present disclosure adopt the following technical solutions: In one aspect, a touch display structure is provided, including a light emitting substrate and a touch structure disposed on at least one side of the light emitting substrate. The touch structure comprises a plurality of first touch channels extending along a first direction and a plurality of second touch channels extending along a second direction. The first direction and the second direction intersect each other. The plurality of first touch channels and the plurality of second touch channels are insulated from each other. The at least one first touch channel comprises a plurality of adjacent first sub-touch channels, each first sub-touch channel comprises a plurality of first touch electrodes which are arranged along the first direction and are electrically connected in sequence, and two adjacent first sub-touch channels in the same first touch channel are electrically connected. And/or the number of the groups of groups, The at least one second touch channel comprises a plurality of adjacent second sub-touch channels, each second sub-touch channel comprises a plurality of second touch electrodes which are arranged along the second direction and are electrically connected in sequence, and two adjacent second sub-touch channels in the same second touch channel are electrically connected. The touch structure comprises a plurality of metal wires, and the metal wires are mutually intersected to form a plurality of metal grids. The light-emitting substrate comprises a plurality of sub-pixels, wherein each sub-pixel comprises a light-emitting area, orthographic projections of the light-emitting areas of at least two sub-pixels are positioned in an orthographic projection range of the same metal grid on a reference surface, and the reference surface is a plane where the light-emitting substrate is positioned. In some embodiments, in the same first touch channel along the second direction, the first touch electrodes in two adjacent first sub-touch channels are arranged in a one-to-one correspondence manner, and at least one pair of the first touch electrodes arranged in a corresponding manner are electrically connected. In some embodiments, the first touch channel further includes a first connection portion, and at least one pair of corresponding first touch electrodes are electrically connected through the first connection portion, where the first connection portion extends substantially along the second direction. In some embodiments, in the same second touch channel along the first direction, the second touch electrodes in two adjacent second sub-touch channels are arranged in a one-to-one correspondence manner, and at least one pair of the second touch electrodes arranged in a corresponding manner are electrically connected. In some embodiments, the second touch channel further includes a second connection portion, and at least one pair of correspondingly disposed second touch electrodes are electrically connected through the second connection portion, where the second connection portion extends substantially along the first direction. In some embodiments, the first touch channel includes a plurality of first connection portions, and the second touch channel includes a plurality of second connection portions, at least one first connection portion intersecting at least one second connection portion. In some embodiments, the touch structure includes a first conductive layer, an insulating layer, and a second conductive layer that are stacked. The insulating layer is positioned between the first conductive layer and the second conductive layer, and a via hole is arranged in the insulating layer. The first touch electrode and the second t