LCD with integral light confinement having a pair of afocal lens

Details LCD with integral light confinement having a pair of afocal lens LCD with integral light confinement having a pair of afocal lens

1995-12-12

1996-11-12

Gross, Anita Pellman

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 40, 359 53, 359 64, G02F 11335, G02F 11347

Patent

active

055745806

ABSTRACT:
Telecentric afocal microlens combinations are inserted between the liquid crystal cells of an active matrix liquid crystal subtractive color display to retain light within a projection of each liquid crystal pixel as the light propagates through the system. A resulting reduction in light losses at the edge of each pixel significantly improves the output brightness and resolution.

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U.S. Patent application Ser. No. 08/046,060, filed Apr. 12, 1992 by Gratrix "Method Of Manufacturing Micro-Optical Elements."
Gary A. Dir, Twisted Nematic Display With Improved Multiplexability Utilizing Simple Alignment Technique, Sep./Oct. 1980, pp. 561-562, vol. 5, number 5.
Hetch et al, Optics, Addison-Wesley Series In Physics, Feb. 1979, pp. 152-153.

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