发明名称 ELECTRO-OPTIC INDICATING DEVICE
摘要 <p>ELECTRO-OPTIC INDICATING DEVICE A display apparatus including a liquid crystal device is disposed to turn on or off in the presence or absence of a control voltage repsectively. Information located under the liquid crystal device and normally occulted, becomes visible when the display turns on.</p>
申请公布号 CA1217886(A) 申请公布日期 1987.02.07
申请号 CA19830430539 申请日期 1983.06.16
申请人 GTE AUTOMATIC ELECTRIC INCORPORATED 发明人 GEORGOPULOS, THOMAS;CIOPER, THOMAS A.
分类号 G02F1/13;H04M9/00;(IPC1-7):G02F1/13;H04M1/26 主分类号 G02F1/13
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