Touch display device and touch driving method thereof
AssigneeLG Display Co., Ltd.
InventorsHyunWoo JANG, JuneGun CHUNG, Youngwoo JO, HongJu LEE
Life of this patent
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Abstract
Provided are a touch display device and a touch driving method thereof. Touch electrodes are grouped into a touch sensing block and non-touch blocks. The touch electrodes in the touch sensing block and the touch electrodes in the non-touch blocks are sensed at different sensing ratios. Power consumption is efficiently managed and sensitivity in touch sensing is maintained.
Claims11
A touch display device comprising:
- a display panel, wherein a touchscreen panel including a plurality of touch electrodes arranged in a matrix form is embedded in the display panel;
- and
- a touch circuit configured to sense the plurality of touch electrodes by grouping the plurality of touch electrodes into a plurality of touch blocks, and control a greater number of touch electrodes to be sensed in a touch sensing block in which a touch is detected, among the plurality of touch blocks, than in a non-touch block in which no touch is detected, among the plurality of touch blocks.
A touch driving method for a display panel, wherein a touchscreen panel including a plurality of touch electrodes arranged in a matrix form is embedded in the display panel, the touch driving method comprising:
- sensing the plurality of touch electrodes by grouping the plurality of touch electrodes into a plurality of touch blocks;
- determining a touch event in a touch block among the plurality of touch blocks;
- and
- if the touch event is present as a result of the determination, controlling the sensing so that a greater number of touch electrodes which are sensed in a touch block in which a touch is detected, among the plurality of touch blocks, than in a touch block in which no touch is detected, among the plurality of touch blocks.
Dependencies are inferred from the claim text.