发明名称 AC activated liquid crystal display cell employing dual switching devices
摘要 An active matrix liquid crystal display cell for AC operation including a first field effect transistor switch for switching video information to a first storage capacitor and a second field effect transistor switch for switching the voltage of the first storage capacitor to one side of a liquid crystal cell. The second transistor is connected to be switched on by a common signal, for example, a vertical sync signal, and the top plate voltage applied to the liquid crystal cell is alternated in synchronism with the common signal, resulting in a doubling of the effective potential applied across the liquid crystal cell.
申请公布号 US4870396(A) 申请公布日期 1989.09.26
申请号 US19870090189 申请日期 1987.08.27
申请人 HUGHES AIRCRAFT COMPANY 发明人 SHIELDS, STEVEN E.
分类号 G02F1/133;G02F1/136;G02F1/1362;G02F1/1368;G09F9/35;G09G3/36;H04N5/66 主分类号 G02F1/133
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