专利检索 ap:("ALPS ELECTRIC NORTH AMERICA IN") AND inv:"TANG SUNING" 第 1 页

1.

发明公开
OPTICAL SWITCHING DEVICE USING HOLOGRAPHIC POLYMER DISPERSED LIQUID CRYSTALS 审中-公开
标题翻译：全息聚合物分散型液晶光学旁路开关

公开(公告)号：EP1766462A4

公开(公告)日：2008-08-13

申请号：EP05754190

申请日：2005-05-19

申请人： ALPS ELECTRIC NORTH AMERICA IN

发明人： LIN JIBING , TANG SUNING , TANG YUANJI , AIHARA MASAMI , ITO NAOKI

IPC分类号： G02F1/13 , G02F1/1334 , G02F1/1335 , G02F1/31 , H04M1/02

CPC分类号： G02F1/31 , G02F1/13342 , G02F1/133615 , G02F2203/06

摘要： A thin holographic optical switch (100) used in a liquid crystal display device (800) contains opposing transparent substrates, (102) transparent electrodes (104) between the substrates (102) and a diffraction grating (105) between the electrodes (104). The diffraction grating (105) contains regions of transparent polymerized photopolymers and cholesteric liquid crystal microdroplets. Refractive indexes of the photopolymers and liquid crystal are substantially the same when the electrodes have the same potential. The holographic optical switch (100) transmits broadband LED light when the potential difference between the electrodes (104) is zero and is polarization independent. The holographic optical switch (100) diffracts broadband LED light when the potential difference between the electrodes (102) is non-zero and is polarization independent.