US 11,656,727 B2
Touch electrode structure and manufacture method thereof, touch panel, and electronic device
Xiaoqing Shu, Beijing (CN); Jiping Zhao, Beijing (CN); Yunsheng Xiao, Beijing (CN); Xiangdan Dong, Beijing (CN); Fan He, Beijing (CN); and Zhengwei Luo, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 16/977,895
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Chengdu (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Nov. 28, 2019, PCT No. PCT/CN2019/121599
§ 371(c)(1), (2) Date Sep. 3, 2020,
PCT Pub. No. WO2021/102798, PCT Pub. Date Jun. 3, 2021.
Prior Publication US 2022/0404929 A1, Dec. 22, 2022
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/0445 (2019.05) [G06F 3/0412 (2013.01); G06F 3/0446 (2019.05); G06F 3/0448 (2019.05)] 18 Claims
OG exemplary drawing
 
1. A touch electrode structure, comprising a first touch electrode and a second touch electrode, wherein:
the first touch electrode extends along a first direction, the second touch electrode extends along a second direction, the first direction intersects with the second direction, and a size of the first touch electrode in the first direction is greater than a size of the second touch electrode in the second direction;
the first touch electrode and the second touch electrode are insulated from and intersect with each other to form a mutual capacitance for touch detection;
the first touch electrode comprises a first hollow region, the second touch electrode comprises a second hollow region, and a hollow area of the first touch electrode is greater than a hollow area of the second touch electrode; and
the touch electrode structure further comprises at least one first dummy electrode, the at least one first dummy electrode is within the first hollow region and is arranged in a same layer as at least part of the first touch electrode, and the at least one first dummy electrode and the at least part of the first touch electrode are insulated from each other;
wherein the first touch electrode comprises a plurality of first touch electrode portions connected in sequence in the first direction, and the second touch electrode comprises a plurality of second touch electrode portions connected in sequence in the second direction; and
the plurality of first sub-hollow regions are within the plurality of first touch electrode portions, and the plurality of first dummy electrodes and the plurality of first touch electrode portions are arranged in a same layer and insulated from each other; wherein each first dummy electrode comprises a plurality of first interdigital structures, and each first interdigital structure are embedded in the first touch electrode portion where the first interdigital structure is located in a same plane.