发明名称 Liquid crystal display having light indicia on a dark background
摘要 A liquid crystal display of the twisted-nematic type in which light numerals or other indicia appear on a darker background. This is achieved with the use of three polarizers, one of which covers only the transparent conductive electrode regions in the display forming a desired image.
申请公布号 US4188094(A) 申请公布日期 1980.02.12
申请号 US19780877923 申请日期 1978.02.15
申请人 FERGASON, JAMES L 发明人 FERGASON, JAMES L
分类号 G02F1/1335;(IPC1-7):G02F1/13 主分类号 G02F1/1335
代理机构 代理人
主权项
地址