Projection type image display apparatus

Details Projection type image display apparatus Projection type image display apparatus

G - Physics

02

B

G02B 27/18 (2006.01) G02B 27/00 (2006.01) H04N 9/31 (2006.01)

Patent

CA 2178889

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 byreflecting 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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