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    • 7. 发明授权
    • Liquid crystal on silicon (LCOS) display device having a uniform cell gap
    • 具有均匀单元间隙的硅液晶(LCOS)显示装置
    • US07535446B2
    • 2009-05-19
    • US11011031
    • 2004-12-15
    • Seong-woon BoohSu-ho ShinSu-gun KimJin-woo ChoJong-min Wang
    • Seong-woon BoohSu-ho ShinSu-gun KimJin-woo ChoJong-min Wang
    • G09G3/36
    • G02F1/1333G02F1/133305G02F1/136277G02F2001/133368G02F2203/18
    • A liquid crystal on silicon (LCOS) device includes a wafer, glass, and walls formed at opposite ends of an upper surface of the wafer to define a predetermined cell gap between the glass and the wafer. A thin piezo-electric layer is attached onto a surface of the wafer and an electrode is applied with external power to expand and/or contract the thin piezo-electric layer. The LCOS device further includes a voltage detection unit for detecting a voltage generated by the deformation of the thin piezo-electric layer; and a feedback control unit for compensating for deformation of the thin piezo-electric layer according to the voltage detected by the voltage detection unit. The LCOS device achieves uniformity of the cell gap by adjusting the voltage level of the thin piezo-electric layer after bonding the wafer and the glass, and therefore, spacers are not required.
    • 硅液晶(LCOS)器件包括在晶片的上表面的相对端形成的晶片,玻璃和壁,以限定玻璃和晶片之间的预定单元间隙。 将薄的压电层附着到晶片的表面上,并且施加外部电力的电极以使薄压电层膨胀和/或收缩。 LCOS器件还包括用于检测由薄压电层的变形产生的电压的电压检测单元; 以及反馈控制单元,用于根据由电压检测单元检测到的电压来补偿薄压电层的变形。 LCOS器件通过在晶片和玻璃结合之后调节薄压电层的电压水平来实现单元间隙的均匀性,因此不需要间隔物。