Touch control screen and touch control device
AssigneeWuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorsYalong Ma, Zengjian Jin, Houfu Gong
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Abstract
A touch control screen includes a plurality of sensing units having first sensing electrodes and second sensing electrodes. Each of the first sensing electrodes includes at least one first trunk channel extending along a first direction and a plurality of first branch electrodes electrically connected to the first trunk channel. Each of the second sensing electrodes includes at least one second trunk channel extending along a second direction and a plurality of second branch electrodes electrically connected to the second trunk channel. The second branch electrodes and the first branch electrodes are alternately arranged, so that a sensing signal change amount of the touch control screen tends to change linearly.
Claims20
A touch control screen, comprising:
- a plurality of sensing units arranged along a first direction and a second direction, wherein the first direction and the second direction intersect, and each of the sensing units comprises:
- a first sensing electrode comprising at least one first trunk channel extending along the first direction and a plurality of first branch electrodes distributed on two sides of the first trunk channel, wherein the first branch electrodes are electrically connected to the first trunk channel;
- a second sensing electrode insulated from the first sensing electrode comprising at least one second trunk channel extending along the second direction and a plurality of second branch electrodes distributed on two sides of the second trunk channel, wherein the second branch electrodes are electrically connected to the second trunk channel, and the second branch electrodes and the first branch electrodes are alternatively arranged, and first dummy electrodes arranged in gaps between the first trunk channel, the first branch electrodes, the second trunk channel, and the second branch electrodes;
- wherein each first dummy electrode of the first dummy electrodes is insulated from other ones of the first dummy electrodes in ones of the gaps different from the gap in which the first dummy electrode is arranged.
A touch control device, comprising an active stylus and a touch control screen, wherein the control screen comprises a plurality of sensing units arranged along a first direction and a second direction, and the first direction and the second direction intersect, and each of the sensing units comprises:
- a first sensing electrode comprising at least one first trunk channel extending along the first direction and a plurality of first branch electrodes distributed on two sides of the first trunk channel, wherein the first branch electrodes are electrically connected to the first trunk channel;
- a second sensing electrode insulated from the first sensing electrode comprising at least one second trunk channel extending along the second direction and a plurality of second branch electrodes distributed on two sides of the second trunk channel, wherein the second branch electrodes are electrically connected to the second trunk channel, and the second branch electrodes and the first branch electrodes are alternatively arranged, and first dummy electrodes arranged in gaps between the first trunk channel, the first branch electrodes, the second trunk channel, and the second branch electrodes;
- wherein each first dummy electrode of the first dummy electrodes is insulated from other ones of the first dummy electrodes in ones of the gaps different from the gap in which the first dummy electrode is arranged.
Dependencies are inferred from the claim text.