US 12,248,651 B2
Touch substrate and display device
Chenghao Zhang, Hubei (CN); and Leilei Luo, Hubei (CN)
Assigned to Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
Filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Hubei (CN)
Filed on Nov. 8, 2023, as Appl. No. 18/504,290.
Claims priority of application No. 202310923231.9 (CN), filed on Jul. 24, 2023.
Prior Publication US 2025/0036243 A1, Jan. 30, 2025
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/0446 (2019.05) [G06F 3/0412 (2013.01); G06F 3/04164 (2019.05)] 16 Claims
OG exemplary drawing
 
1. A touch substrate, having a folding line, the touch substrate comprising:
a touch region; and
a non-touch region, wherein the non-touch region comprises a first non-touch region and a second non-touch region respectively on two sides of the touch region, and a third non-touch region between the first non-touch region and the second non-touch region;
the touch substrate comprising:
a plurality of first electrode groups, extending along a first direction parallel to the folding line, spaced along a second direction intersecting the first direction, and disposed in the touch region, wherein at least one of the plurality of first electrode groups comprises a first sub-electrode group on a side of the folding line away from the third non-touch region and a second sub-electrode group on a side of the folding line close to the third non-touch region;
a plurality of second electrode groups, extending along the second direction, spaced along the first direction, and disposed in the touch region;
a touch integrated circuit (IC) in the third non-touch region;
a plurality of first sub-electrode group connecting lines in the first non-touch region, wherein a terminal of each of the plurality of first sub-electrode group connecting lines is correspondingly electrically connected to one of the plurality of first sub-electrode groups, and another terminal of each of the plurality of first sub-electrode group connecting lines is electrically connected to the touch IC; and
a shielded line between the touch region and one of the plurality of first sub-electrode groups connecting line electrically connected to one of the plurality of first sub-electrode groups adjacent to the folding line;
wherein each of the plurality of second electrode groups comprises a plurality of driving electrodes electrically connected to each other, wherein each of the plurality of driving electrodes comprises:
a second main electrode extending along the second direction;
one or more second branch electrodes connected to the second main electrode and crossing the second main electrode, wherein the one or more second branch electrodes comprise one or more first sub-branch electrodes on a side of the folding line away from the third non-touch region, and one or more second sub-branch electrodes on a side of the folding line close to the third non-touch region; and
one or more virtual test blocks, wherein each of the one or more virtual test blocks is between one of the one or more sub-branch electrodes and the shielded line.