Invention Grant
- Patent Title: Liquid crystal display
- Patent Title (中): 液晶显示器
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Application No.: US12506562Application Date: 2009-07-21
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Publication No.: US08368629B2Publication Date: 2013-02-05
- Inventor: Yongchae Jung , Seungchul Park , Sangjin Nam
- Applicant: Yongchae Jung , Seungchul Park , Sangjin Nam
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2008-0118953 20081127
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
This document relates to a liquid crystal display capable of improving picture quality by compensating for difference in charge between liquid crystal cells. The liquid crystal display comprises a liquid crystal display panel; a gate driving circuit; a charge difference compensation circuit configured to generate, in a specific gray level range, analog positive gamma voltages having a first reference level and analog negative gamma voltages having a second reference level in synchronization with a first scan time at which a first gate line is driven, and generate the analog positive gamma voltages having a first compensation level that is lower than the first reference level and the analog negative gamma voltages having a second compensation level that is higher than the second reference level in synchronization with a second scan time at which a second gate line is driven; and a data driving circuit.
Public/Granted literature
- US20100127960A1 LIQUID CRYSTAL DISPLAY Public/Granted day:2010-05-27
Information query
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