发明名称 |
Display device conversion device, display device correction circuit, display device driving device, display device, display device examination device, and display method |
摘要 |
The liquid crystal display device inputs a signal, corrected by a correction circuit provided with a sigmoid inverse function generator, to a source driver. A sigmoid function which is an S-shaped function is used to approximate an input/output characteristic (applied voltage-transmittance curve) of a liquid crystal panel. The sigmoid inverse function generator converts an input signal by using an inverse function of the sigmoid function obtained by performing the approximation. A gamma conversion circuit provided on the correction circuit and the sigmoid inverse function generator realize the desired gamma characteristic regardless of a characteristic of the liquid crystal panel. Further, since the inverse function of the sigmoid function which is an S-shaped function is used, it is possible to provide a display device which corrects the input/output characteristic of the display panel by performing the approximation in accordance with not plural functions but a single function (without dividing the characteristic into sections).
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申请公布号 |
US2004150602(A1) |
申请公布日期 |
2004.08.05 |
申请号 |
US20030740795 |
申请日期 |
2003.12.22 |
申请人 |
FURUKAWA HIROYUKI;YOSHIDA YASUHIRO;UENO MASAFUMI |
发明人 |
FURUKAWA HIROYUKI;YOSHIDA YASUHIRO;UENO MASAFUMI |
分类号 |
G02F1/133;G09G3/20;G09G3/36;H04N9/69;(IPC1-7):G09G3/36 |
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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