US 12,236,037 B2
Touch control device
Lei Gao, Shenzhen (CN)
Assigned to SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen (CN)
Appl. No. 17/427,092
Filed by SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen (CN)
PCT Filed May 31, 2021, PCT No. PCT/CN2021/097312
§ 371(c)(1), (2) Date Jul. 30, 2021,
PCT Pub. No. WO2022/193442, PCT Pub. Date Sep. 22, 2022.
Claims priority of application No. 202110286187.6 (CN), filed on Mar. 17, 2021.
Prior Publication US 2023/0367413 A1, Nov. 16, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G06F 3/046 (2006.01)
CPC G06F 3/0416 (2013.01) [G06F 3/044 (2013.01); G06F 3/046 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A touch control device, comprising a touch control substrate, wherein the touch control substrate comprises a base and a touch control circuit arranged on the base, and the touch control device further comprises a touch control mode switching circuit electrically connected to the touch control circuit, the touch control mode switching circuit controls the touch control circuit to switch between a capacitive touch control circuit and an electromagnetic touch control circuit, and at least part of sensing signal lines of the capacitive touch control circuit also serves as sensing signal lines of the electromagnetic touch control circuit;
wherein the touch control circuit comprises a plurality of first touch control lines and a plurality of second touch control lines, the first touch control lines intersect and are insulated from the second touch control lines;
wherein the touch control mode switching circuit comprises a first switch control circuit and a second switch control circuit, at least two of the first touch control lines are electrically connected to the first switch control circuit, and at least two of the second touch control lines are electrically connected to the second switch control circuit;
wherein when each of the first switch control circuit and the second switch control circuit is in an off mode, the at least two of the first touch control lines are disconnected from each other, the at least two second touch control lines are disconnected from each other, and the touch control circuit is a mutual capacitive touch control circuit; and
wherein when each of the first switch control circuit and the second switch control circuit is in an on mode, two of the first touch control lines are electrically connected to each other, and two of the second touch control lines are electrically connected to each other, and the touch control circuit is the electromagnetic touch control circuit;
wherein the touch control device further comprises a display panel, and the first touch control lines and the second touch control lines are respectively disposed on opposite sides of a cover plate of the display panel.