Harness, Dickey & Pierce, P.L.C.
Hybrid sensing touchscreen apparatus capable of light touch sensing and physical touch sensing and method of driving the same
A touchscreen apparatus includes pixel rows including pixels configured to display an image, a touch-sensing unit configured to sense a physical touch, light-sensing unit configured to sense incident light, a first sensor gate line configured to provide a first gate signal for activating the light-sensing unit and resetting the touch-sensing unit, a second sensor gate line configured to provide a second gate signal for activating the touch-sensing unit and resetting the light-sensing unit, and a reset circuit configured to provide a common voltage to the pixels based on the operation of at least one of the light-sensing unit and the touch-sensing unit.
SAMSUNG ELECTRONICS CO., LTD.
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Seung-eon Ji-hoon I-hun Seung-hyup Yong-woo
Ahn Ahn Song Lee Jeon