US 12,248,650 B2
Touch structure, touch display panel and display device
Yuanqi Zhang, Beijing (CN); Yi Zhang, Beijing (CN); Chang Luo, Beijing (CN); Shun Zhang, Beijing (CN); and Tianci Chen, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/262,197
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD, Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jan. 26, 2022, PCT No. PCT/CN2022/074113
§ 371(c)(1), (2) Date Jul. 20, 2023,
PCT Pub. No. WO2023/141836, PCT Pub. Date Aug. 3, 2023.
Prior Publication US 2024/0402841 A1, Dec. 5, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/0412 (2013.01) [G06F 3/0443 (2019.05); G06F 3/0446 (2019.05); G06F 3/0448 (2019.05); G06F 2203/04111 (2013.01); G06F 2203/04112 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A touch structure, arranged on a side of a display substrate, wherein the touch structure comprises
a plurality of first touch electrodes and a plurality of second touch electrodes, the first touch electrodes are distributed at intervals along a row direction, the first touch electrode comprises a plurality of first electrode blocks and an adapter bridge, the plurality of first electrode blocks are distributed at intervals along a column direction, the adapter bridge is connected to two adjacent first electrode blocks;
the second touch electrodes are distributed at intervals along the column direction, the second touch electrode comprises a plurality of second electrode blocks connected in series along the row direction;
the adapter bridge and the second touch electrode are intersected;
the first electrode blocks and the second electrode are located at a same electrode layer, the adapter bridge is located at a side of the electrode layer, and an insulating layer is arranged between the adapter bridge and the electrode layer;
each of the first touch electrode and the second touch electrode is a grid-shaped structure formed by a plurality of grid lines, a grid line of the adapter bridge is an adapter line, and a grid line of the first electrode block and a grid line of the second electrode block are channel lines; and
at least a side of the adapter bridge is connected to a guide portion disposed on the same layer as the adapter bridge;
in the adapter bridge, the first electrode block connected to the adapter bridge and the second touch electrode intersected with the adapter bridge, the guide portion overlaps with at least one channel line of a boundary of one of the first electrode block and the second touch electrode, a part of the adapter line overlaps with a part of a channel line of a boundary of at least one of the first electrode block or the second touch electrode; and
an adapter line connected to the guide portion overlaps with a part of the channel line of the boundary of one of the first electrode block and the second touch electrode;
in the guide portion and the channel line that are overlapped, an extension direction of the guide portion is the same as an extension direction of the channel line, and at least partial edge of an orthographic projection of the guide portion on the display substrate is located outside an edge of an orthographic projection of the channel line on the display substrate;
wherein in the adapter bridge and the first electrode block connected to the adapter bridge:
the adapter bridge is connected to the first electrode block through a plurality of via holes running through the insulating layer;
a region where the channel lines of the first electrode block are intersected is a channel intersection region, a region where the adapter lines are intersected is an adapter intersection region,
a boundary of the first electrode block is provided with a plurality of the channel intersection regions, and the channel intersection regions of the boundary of the first electrode block and at least a part of the adapter intersection regions are overlapped in one-to-one correspondence;
in the adapter intersection region and the channel intersection region that are overlapped on the boundary of the first electrode block,
a boundary of an orthographic projection of the adapter intersection region on the display substrate is located outside a boundary of an orthographic projection of the channel intersection region on the display substrate;
wherein a plurality of channel lines overlapped with the guide portion are provided, the guide portion comprises a plurality of guide lines, the plurality of guide lines are sequentially connected along an extension direction of a channel line corresponding to the guide portion towards a direction away from the adapter bridge, and the guide line overlaps with the channel line;
a gap between the first electrode block and the second touch electrode that are adjacent to each other is formed by the disconnection of the channel line,
a width of the gap straddled by the adapter bridge is equal to a length of the adapter line,
wherein the width of the adapter line and a guide line of the plurality of guide lines are different.