发明名称 Liquid crystal display device for display with gray levels.
摘要 <p>A liquid crystal display device having an arrangement of a plurality of pixel display regions (82) each including a plurality of divided pixels (A-D), and being capable of effecting display with a large number of gray levels. Each of the divided pixels (A-D) is displayed individually and selectively with at least two gray levels. The liquid crystal device further includes pixel electrodes (31-36) for individually and selectively enabling the divided pixels (A-D), and a gray level setting circuit for controlling the sum of the areas of the enabled divided pixels (A-D), thereby setting the gray levels of the pixels. In this device, one pixel display region (82) includes n divided pixels (A-D) and if each pixel (A-D) can be displayed with m gray levels, the areas of the pixels (A-D) are set to form a geometric progression using m as a common ratio, whereby display with m&lt;n&gt; gray levels for one display region (82) can be effected with high precision.</p>
申请公布号 EP0361981(A2) 申请公布日期 1990.04.04
申请号 EP19890310055 申请日期 1989.10.02
申请人 SHARP KABUSHIKI KAISHA 发明人 NAKAGAWA, KENICHI;NUMAO, TAKAJI
分类号 G02F1/133;G02F1/1343;G09F9/30;G09G3/20;G09G3/36 主分类号 G02F1/133
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