发明名称 Liquid crystal device having two super twisted nematic cells
摘要 An electro-optical device includes at least two adjacent transparent twisted nematic liquid crystal cells, each cell having a twisted nematic liquid crystal with a twist angle greater than 90 DEG between a pair of spaced apart opposed substrates with electrodes selectively disposed thereon. A linear polarizer is disposed on an exterior surface of each of the two cells. One of the two cells includes a plurality of electrodes for selectively producing a desired display. Application of a suitable voltage to the second cell compensates for changes in ambient temperature conditions or undesirable thicknesses in the liquid crystal materials of the two cells to ensure that a monochromatic display having excellent contrast is produced by the device and compensates for elliptically polarized light emitted by the first cell so that the device produces substantially linearly polarized light.
申请公布号 US5035489(A) 申请公布日期 1991.07.30
申请号 US19890343987 申请日期 1989.04.27
申请人 SEIKO EPSON CORPORATION 发明人 IIJIMA, CHIYOAKI;SATO, YUZURU;WADA, HIROSHI;OKUMURA, OSAMU;KAMADA, SATOSHI
分类号 G02F1/133;G02F1/13363;G02F1/1347;G02F1/139 主分类号 G02F1/133
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