Liquid crystal panel having micro-lens array with extended focal

Details Liquid crystal panel having micro-lens array with extended focal Liquid crystal panel having micro-lens array with extended focal

1997-11-20

1999-12-14

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349 5, G02F 11335

Patent

active

060024593

ABSTRACT:
According to a liquid crystal panel of the present invention, the focal length of micro-lenses is set to be longer than the distance between the micro-lens array and the first substrate, while light collected by each micro-lens is arranged to focus inside the first substrate. Thus, the divergence angle after focusing can be reduced. Therefore, the maximum light-emerging angle from the LCD panel can be reduced, and eclipse of the light which causes chrominance or luminance non-uniformity does not occur even when a lens having a high F number is used as a projection lens.

REFERENCES:
patent: 5052783 (1991-10-01), Hamada
patent: 5161042 (1992-11-01), Hamada
patent: 5543942 (1996-08-01), Mizuguchi et al.
patent: 5548349 (1996-08-01), Mizuguchi et al.
"Asia Display'95", Proceedings of the Fifteenth International Display Research Conference, Oct. 16 to 18, 1995, pp. 887 to 890.

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