发明名称 |
Liquid crystal display device, method of driving the same, and method of driving a portable information device having the liquid crystal display device |
摘要 |
A liquid crystal display device that displays an image by inputting n (n is a natural number) bit digital signals has n memory circuits in each pixel. The n memory circuits store n bit digital signals, which are converted into corresponding analog signals by a D/A converter provided in each pixel so that the analog signals are inputted to a liquid crystal element. Therefore, when a still image is to be displayed, the stored digital signals are repeatedly used once the digital signals are written in the memory circuits. During the still image is displayed, a source signal line driving circuit and other circuits can stop their driving. Power consumption of the liquid crystal display device thus can be reduced.
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申请公布号 |
US2002021274(A1) |
申请公布日期 |
2002.02.21 |
申请号 |
US20010923433 |
申请日期 |
2001.08.08 |
申请人 |
KOYAMA JUN;YAMAZAKI SHUNPEI |
发明人 |
KOYAMA JUN;YAMAZAKI SHUNPEI |
分类号 |
G09G3/32;G09G3/36;(IPC1-7):G09G3/36 |
主分类号 |
G09G3/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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