发明名称 |
Light valve device |
摘要 |
A light valve has a composite substrate comprised of an electrically insulating substrate and a semiconductor single crystal thin film formed over the electrically insulating substrate. A pixel array comprising semiconductor switch elements is formed in the semiconductor single crystal thin film. A peripheral circuit having circuit elements is formed in the semiconductor single crystal thin film so that a small-sized, high speed light valve is obtained. X- driver and Y-driver circuits are formed in the semiconductor single crystal thin film and controlled by a control circuit, such as a video signal processing circuit, which receives and processes video signals inputted directly from an external source. The peripheral circuit can be a DRAM sense amplifier for sensing charges stored in each pixel of the pixel array to detect defects in the pixel array. The peripheral circuit can be a photosensor circuit for detecting an intensity of incident light to monitor the performance of a light source of the light valve. The peripheral circuit can be a temperature sensor for detecting the temperature of a liquid crystal layer of the light valve, and may be comprised of Darlington connected NPN transistors formed in the semiconductor single crystal thin film. The peripheral circuit can also be a solar cell for converting incident light into electrical energy to supply power to at least one of the pixel array, X-driver and Y-driver circuits and the peripheral circuit.
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申请公布号 |
US6067062(A) |
申请公布日期 |
2000.05.23 |
申请号 |
US19910749292 |
申请日期 |
1991.08.23 |
申请人 |
SEIKO INSTRUMENTS INC. |
发明人 |
TAKASU, HIROAKI;KOJIMA, YOSHIKAZU;KAMIYA, MASAAKI;YAMAZAKI, TSUNEO;SUZUKI, HIROSHI;TAGUCHI, MASAAKI;TAKANO, RYUICHI;YABE, SATORU |
分类号 |
G02F1/1337;G02F1/136;G02F1/1362;G09G3/20;G09G3/36;G09G5/00;H01L27/12;(IPC1-7):G09G3/36 |
主分类号 |
G02F1/1337 |
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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