会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 20. 发明申请
    • SELF-COMPENSATING, QUASI-HOMEOTROPIC LIQUID CRYSTAL DEVICE
    • 自补偿,准单色液晶装置
    • WO2008019227A2
    • 2008-02-14
    • PCT/US2007074492
    • 2007-07-26
    • CUSPATE LLCSCHEFFER TERRY JXUE JIUZHI
    • SCHEFFER TERRY JXUE JIUZHI
    • G02F1/1337
    • G02F1/133753G02F2001/133761G02F2001/134372G02F2001/1398
    • Self-compensating, quasi-homeotropic liquid crystal devices (100, 200, 300, 400) overcome the contrast reducing effects of smaller pretilt angles. The devices exhibit extremely high contrast ratio but at the same time suppress fringe field-induced disclination lines in high pixel density and small pixel size quasi-homeotropic displays. The surface pretilt (520, 540) and cell twist (570) angles are set at values that, in combination, contribute to establishing a cuspate singularity in the contrast ratio for normally incident light in response to a drive signal switching the liquid crystal device to the OFF director field state that provides nearly 0% optical efficiency. The OFF director field state corresponds to a subthreshold drive level that provides for the liquid crystal device self-compensation for in plane optical retardation. Setting the cell gap ("d") to provide substantially 100% optical efficiency in response to a value of the drive signal switching the liquid crystal device to the ON director field state achieves optimal dynamic range for the liquid crystal device.
    • 自补偿准垂直液晶设备(100,200,300,400)克服了较小预倾角的对比度降低效应。 该器件表现出极高的对比度,但同时在高像素密度和小像素尺寸准垂直显示器中抑制边缘场感应向错线。 表面预倾角(520,540)和单元扭转(570)角度被设定为这样的值,其组合地有助于响应于驱动信号将液晶装置切换到正常入射光而在对比率中建立尖点奇点 OFF导向器的现场状态,提供接近0%的光学效率。 OFF指示器场状态对应于为平面内光学延迟提供液晶器件自补偿的亚阈值驱动电平。 响应于将液晶装置切换到ON指示器场状态的驱动信号的值,设置单元间隙(“d”)以提供基本上100%的光学效率实现了液晶装置的最佳动态范围。