发明名称 |
Touch sensor using capacitance detection and liquid crystal display having the same |
摘要 |
A touch sensor configured to be disposed in a liquid crystal display panel includes a plurality of x-axis read-out lines crossing and insulated from a plurality of y-axis read-out lines and a plurality of sensor units. Each sensor unit includes a reset unit, a capacitance detector, a first output unit, and a second output unit. The reset unit outputs a first reset signal based on a first control signal. The capacitance detector changes the first reset signal based on a variation of a cell gap of the liquid crystal display panel caused by a touch event. The first output unit changes an electric potential of a corresponding x-axis read-out line in response to the first reset signal changed in the capacitance detector. The second output unit changes an electric potential of a corresponding y-axis read-out line in response to the first reset signal changed in the capacitance detector. |
申请公布号 |
US8427436(B2) |
申请公布日期 |
2013.04.23 |
申请号 |
US20080327378 |
申请日期 |
2008.12.03 |
申请人 |
PARK HYUN-SANG;HAN MIN-KOO;LEE JAE-HOON;YOU BONG-HYUN;LEE BYOUNG-JUN;SAMSUNG DISPLAY CO. LTD. |
发明人 |
PARK HYUN-SANG;HAN MIN-KOO;LEE JAE-HOON;YOU BONG-HYUN;LEE BYOUNG-JUN |
分类号 |
G06F3/041 |
主分类号 |
G06F3/041 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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