发明名称 |
Liquid crystal on silicon (LCOS) display device having a uniform cell gap |
摘要 |
A liquid crystal on silicon (LCOS) device includes a wafer, glass, and walls formed at opposite ends of an upper surface of the wafer to define a predetermined cell gap between the glass and the wafer. A thin piezo-electric layer is attached onto a surface of the wafer and an electrode is applied with external power to expand and/or contract the thin piezo-electric layer. The LCOS device further includes a voltage detection unit for detecting a voltage generated by the deformation of the thin piezo-electric layer; and a feedback control unit for compensating for deformation of the thin piezo-electric layer according to the voltage detected by the voltage detection unit. The LCOS device achieves uniformity of the cell gap by adjusting the voltage level of the thin piezo-electric layer after bonding the wafer and the glass, and therefore, spacers are not required. <IMAGE>
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申请公布号 |
EP1550900(A1) |
申请公布日期 |
2005.07.06 |
申请号 |
EP20040256531 |
申请日期 |
2004.10.22 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
BOOH, SEONG-WOON;KIM, SU-GUN;SHIN, SU-HO;CHO, JIN-WOO;WANG, JONG-MIN |
分类号 |
G02F1/1339;G02F1/133;G02F1/1333;G02F1/1362;H01L41/08;(IPC1-7):G02F1/133 |
主分类号 |
G02F1/1339 |
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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