发明名称 LIQUID CRYSTAL DISPLAY DEVICE
摘要 PURPOSE: An LCD device is provided to select a wavelength of a reflected circular polarization component by controlling a helical pitch of a CLC(Cholesteric Liquid Crystal) according to an electric field formed in horizontal direction, thereby increasing contrast. CONSTITUTION: An upper substrate(41) and a lower substrate(30) are faced to each other. A common electrode(34) and a data electrode(33) form a horizontal electric field on the lower substrate(30). A cholesteric liquid crystal layer(42) is interposed between the upper substrate(41) and the lower substrate(30). A liquid crystal molecule of the cholesteric liquid crystal layer(42) has a helical pitch controlled by the horizontal electric field. Light having the same wavelength as the helical pitch is reflected. The upper substrate(41) is transparent, and the lower substrate(30) is opaque.
申请公布号 KR20040061711(A) 申请公布日期 2004.07.07
申请号 KR20020088000 申请日期 2002.12.31
申请人 LG.PHILIPS LCD CO., LTD. 发明人 HONG, HYEONG GI
分类号 G02F1/1343;G02F1/1347;G02F1/137;G02F1/139;G02F1/141;(IPC1-7):G02F1/13 主分类号 G02F1/1343
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