Invention Grant
- Patent Title: Liquid crystal display apparatus and monitor system having the same
- Patent Title (中): 液晶显示装置及其监视系统
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Application No.: US11520594Application Date: 2006-09-14
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Publication No.: US07692616B2Publication Date: 2010-04-06
- Inventor: Yuko Nakamura , Isamu Suzuki
- Applicant: Yuko Nakamura , Isamu Suzuki
- Applicant Address: JP Kariya
- Assignee: DENSO CORPORATION
- Current Assignee: DENSO CORPORATION
- Current Assignee Address: JP Kariya
- Agency: Posz Law Group, PLC
- Priority: JP2005-275651 20050922
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A liquid crystal display apparatus includes a liquid crystal panel having a matrix of pixels, a control circuit, and a temperature sensor. The temperature sensor directly or indirectly detects a temperature of the liquid crystal panel. The control circuit reverses a polarity of a voltage applied to each pixel at a time interval variable with the detected temperature, while keeping a field frequency constant. The time interval is a positive integer multiple of the reciprocal of a field frequency, i.e., a positive integer multiple of a field period. When the temperature of the liquid crystal layer is low, the control circuit reverses the polarity of the voltage at a longer time interval. In contrast, when the temperature of the liquid crystal layer is high, the control circuit reverses the polarity of the voltage at a shorter time interval.
Public/Granted literature
- US20070070003A1 Liquid crystal display apparatus and monitor system having the same Public/Granted day:2007-03-29
Information query
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