发明授权
US3576364A Color advertising display employing liquid crystal 失效
彩色广告显示采用液晶

Color advertising display employing liquid crystal
摘要:
A color picture is projected onto a liquid crystal display panel and becomes visible, in color, at those areas of the panel at which the liquid crystal is concurrently excited by the application of an electric field. A ''''moving'''' picture is simulated by selectively removing (or applying) the electric field from (or to) different areas of the panel during successive time intervals.
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