Invention Grant
- Patent Title: Liquid crystal display
- Patent Title (中): 液晶显示器
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Application No.: US12585110Application Date: 2009-09-03
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Publication No.: US08269740B2Publication Date: 2012-09-18
- Inventor: Minho Sohn , Jongseong Choi , Hyunguk Jang , Sangrae Lee , Jaejung Han , Sanghyuck Bae , Byungchun Yu
- Applicant: Minho Sohn , Jongseong Choi , Hyunguk Jang , Sangrae Lee , Jaejung Han , Sanghyuck Bae , Byungchun Yu
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: McKenna Long & Aldridge LLP
- Priority: KR10-2008-0129572 20081218
- Main IPC: G06F3/041
- IPC: G06F3/041

Abstract:
A multi-touch sensing method and apparatus are described. The multi-touch sensing method includes: storing, in a memory, coordinate values of a first dead zone and coordinate values of a second dead zone existing between first and second pair of image sensors, respectively; calculating coordinate values of touch points from images obtained by the first and second pairs of image sensors; comparing the coordinate values of the touch point and the coordinate values of the dead zones to identify the location of the dead zone to which the touch point belongs; selecting the coordinate values calculated in the third step if the coordinate values of the touch point belong to the first dead zone; and selecting the coordinate values calculated in the second step if the coordinate values of the touch point belong to the second dead zone.
Public/Granted literature
- US20100156825A1 Liquid crystal display Public/Granted day:2010-06-24
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