发明名称 LIQUID CRYSTAL DISPLAY ELEMENT AND PROJECTION TYPE LIQUID CRYSTAL DISPLAY DEVICE
摘要 PROBLEM TO BE SOLVED: To improve utilization efficiency of light by enlarging effective numerical aperture without bringing about size increase of constitution and manufacturing difficulty. SOLUTION: A liquid crystal display element is provided with a liquid crystal layer 45, a pixel electrode part 46 having plural pixel openings 46A through which light can pass and at least one micro-lens array 42 in which plural microlenses 42M are two-dimensionally arranged and formed corresponding to the plural pixel openings. Each microlens contains a condensing lens which has at least one lens surface R1 in an optical axis direction and functions so as to converge incident beams at a pixel opening side and a field lens which has at lest one lens surface R2 in the optical axis direction and is constituted so that a focus position nearly coincides with a principal point position of the condensing lens. A synthesized focus position of the condensing lens and the field lens is constituted by being shifted from the pixel opening and shift quantity is set so that the effective numerical aperture is higher than that when the synthesized focus position coincides with the pixel opening 46A.
申请公布号 JP2002350823(A) 申请公布日期 2002.12.04
申请号 JP20010158526 申请日期 2001.05.28
申请人 SONY CORP 发明人 FUKUDA TOSHIHIRO;FURUYA TOMOYOSHI
分类号 G02F1/13;G02F1/1335;G02F1/13357;G03B21/00;G03B21/14 主分类号 G02F1/13
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