Projection type image display apparatus

Details Projection type image display apparatus Projection type image display apparatus

1996-06-12

1998-06-09

Lee, Michael H.

Television

Video display

Projection device

348761, 349 5, 349 95, H04N 564, G02F 11335

Patent

active

057643105

ABSTRACT:
A projection type image display apparatus of a single plate system using a single liquid crystal panel featuring compactness, light weight and high brightness is provided. The apparatus comprises a liquid crystal unit, a first filter located on the light incident side of a first picture element to be driven according to a first color signal and provided with the ability to pass light of a first wavelength only, a second filter located on the light incident side of a second picture element to be driven according to a second color signal and provided with the ability to pass light of a second wavelength only, a microlens array with a plurality of microlenses, each of which measures three times the dimension of each picture element, a reflective layer characterized by reflecting the second wavelength light and third wavelength light at places other than the place where the light from the microlens passes through, an illumination system, and a light projection system.

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patent: 5633737 (1997-05-01), Tanaka et al.
patent: 5666176 (1997-09-01), Kurematsu

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