发明名称 |
Drive circuit for improved brightness control in liquid crystal displays and method therefor |
摘要 |
A display driver for a display unit having a memory element and a liquid crystal cell includes a first display driver circuit having a first storage capacitor and a first differential amplifier coupled between the first storage capacitor and the liquid crystal cell and a second display driver circuit having a second storage capacitor (14') an a second differential amplifier (16') coupled between the second storage capacitor and the liquid crystal cell. The display driver also includes a first switching mechanism enabling the switching of the display driver between the first display driver circuit during a positive frame and a second display driver circuit during a negative frame and a second switching mechanism coupled to a supply voltage. The second switching mechanism is controlled by at least one global address line.
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申请公布号 |
US7508367(B2) |
申请公布日期 |
2009.03.24 |
申请号 |
US20020182479 |
申请日期 |
2002.07.30 |
申请人 |
THOMSON LICENSING |
发明人 |
O'DONNELL EUGENE MURPHY |
分类号 |
G02F1/133;G09G3/36;G09G3/20 |
主分类号 |
G02F1/133 |
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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