发明名称 |
Liquid crystal display device having a gray-scale voltage selector circuit |
摘要 |
A liquid crystal display device has a circuit for selecting voltage levels based upon display data from an externally-supplied gray-scale voltage varying periodically. The circuit includes a plurality of series combinations of processing circuits. Each of the series combinations is associated with one of video signal lines coupled to pixels, and each of the processing circuits of a respective one of the plural series combinations is associated with a respective one of N display data lines for supplying the display data and with a respective one of plural time control signal lines for supplying time control signals varying in synchronism with the gray-scale voltage. Each of the processing circuits is disposed between two adjacent ones of the N display data lines. The time control signals uniquely determine one level of the gray-scale voltage in combination with the time control signals.
|
申请公布号 |
US6791521(B2) |
申请公布日期 |
2004.09.14 |
申请号 |
US20020084942 |
申请日期 |
2002.03.01 |
申请人 |
HITACHI, LTD.;HITACHI DEVICE ENGINEERING CO., LTD. |
发明人 |
ISAMI HIRONOBU;TAKEMOTO IWAO;MIYAZAWA TOSHIO;MATSUMOTO KATSUMI |
分类号 |
G02F1/133;G09G3/20;G09G3/36;(IPC1-7):G09G3/36 |
主分类号 |
G02F1/133 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|