非晶硅液晶光閥的研制
RESEARCH ON LIQUID CRYSTAL LIGHT VALVE WITH AMORPHOUS SILICON
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摘要: 用惰性小而廉價的a-Si:H膜作液晶光閥的光導層是一種理想選擇。采用阻抗匹配的方法,設計和制作了a-Si:H液晶光閥。在大屏幕投影系統(tǒng)上獲得了清晰的投影圖象,分辨率為201p/mm。光閥感光度測量表明,寫入光在100w,cm2以下,讀出光隨寫入光線性變化。在寫入光為100w/cm2時,瞬態(tài)響應測量結果為:上升時間60ms,下降時間80ms。
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關鍵詞:
- 液晶光閥; 阻抗匹配; 大屏幕投影
Abstract: It is an ideal selection to use a-Si:H film, which is cheap and with small lag, as the photoconductive layer of liquid crystal light valve. By using the method of impedance matching, an a-Si:H liquid crystal light valve is designed and fabricated, and the clear image on a large screen projective system is obtained. The resolution of the valve is 201p/mm. The sensitometry measurement shows that the projection light level varies linearly with the writing light level when the latter is below 100W/cm2. The measurement of transient response at the writing light level of 100W/cm2 indicates that the rise time is 60ms and the decay time is 80ms. -
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