发明名称 |
Diffractive spatial light modulator and display |
摘要 |
<p>A diffractive spatial light modulator comprises an array of pixels (40) which can be actively or passively addressed. Each pixel comprises a material such as a ferroelectric liquid crystal addressed on one side by interdigitated elongate first and second electrodes (3a, 3b). The interdigitated electrodes are connected to an address signal generator, such as a strobe signal generator (43) and a data signal generator (41, 42). The address signal generator supplies signals which allow each pixel to be switched to any one of a non-diffractive state and a plurality of different diffractive states of different diffraction efficiencies. This may be achieved by varying the diffraction grating mark/space ratios. Alternatively or additionally, the individual interdigitated electrodes may be controlled so as to allow non-periodic gratings to be written at each pixel. <IMAGE></p> |
申请公布号 |
EP0884628(A2) |
申请公布日期 |
1998.12.16 |
申请号 |
EP19980304499 |
申请日期 |
1998.06.08 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
MAYHEW, NICHOLAS;ROBINSON, MICHAEL GERAINT;TOMBLING, CRAIG;KODEN, MITSUHIRO |
分类号 |
G02F1/01;G02F1/133;G02F1/1343;G02F1/141;G02F1/29;(IPC1-7):G02F1/29;G09G3/36 |
主分类号 |
G02F1/01 |
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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