Invention Grant
- Patent Title: Optical detection apparatus, liquid crystal display device using the same and driving method thereof
- Patent Title (中): 光学检测装置，使用其的液晶显示装置及其驱动方法
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Application No.: US11594949Application Date: 2006-11-09
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Publication No.: US07990359B2Publication Date: 2011-08-02
- Inventor: Kyoung Moon Lim
- Applicant: Kyoung Moon Lim
- 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: KR10-2006-0040465 20060504
- Main IPC: G09G3/36
- IPC: G09G3/36
Abstract:
An optical detection apparatus includes an optical/electric converter to transduce light incident on the optical/electric converter into a current flowing to a ground potential; a current mirror to supply a mirror output voltage to a current mirror output node in response to an enable signal, the mirror output voltage having a magnitude proportional to the light intensity incident on the optical/electric converter; and a switch to connect a driving node of the current mirror to the ground potential through the optical/electric converter in response to the enable signal.
Public/Granted literature
- US20070257879A1 Optical detection apparatus, liquid crystal display device using the same and driving method thereof Public/Granted day:2007-11-08
Information query
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