Display apparatus using LCD panel
First Claim
1. A projection apparatus comprising:
- a) an illumination section comprising;
i) a first light source for providing a first illumination beam;
ii) a second light source for providing a second illumination beam;
iii) a third light source for providing a third illumination beam;
b) first, second, and third component wavelength modulating sections, each component wavelength modulating section accepting the corresponding first, second, or third wavelength illumination and modulating the corresponding wavelength illumination to provide a first, second, or third modulated component wavelength beam respectively, each component wavelength modulating section comprising;
i) a portion of a monochrome transmissive liquid crystal modulator panel that has been segmented into at least a first portion, a second portion, and a third portion, and wherein each portion is spatially separated from each other portion;
ii) a component wavelength polarizer in the path of the component wavelength illumination for directing substantially polarized light to the corresponding portion of the monochrome transmissive liquid crystal modulator panel;
iii) an illumination path Fresnel lens for focusing incident illumination from the component wavelength polarizer through the corresponding portion of the monochrome transmissive liquid crystal modulator panel;
iv) an analyzer for conditioning the polarization of the modulated component wavelength beam;
v) a lens for forming an image for projection onto a display surface; and
whereby the image formed on the display surface comprises a plurality of superimposed component wavelength beams.
9 Assignments
0 Petitions
Accused Products
Abstract
A projection apparatus (10) has an illumination section that provides first, second, and third light sources (20) for providing first, second, and third illumination beams. First, second, and third component wavelength modulating sections modulate the corresponding illumination to provide first, second, or third modulated component wavelength beams respectively. Each component wavelength modulating section uses a portion of a monochrome transmissive liquid crystal modulator panel (118) that has been segmented into at least a first, second, and third portion. A component wavelength polarizer in the path of the component wavelength illumination directs substantially polarized light to the corresponding portion of the monochrome transmissive liquid crystal modulator panel. An illumination path Fresnel lens focuses incident illumination from the component wavelength polarizer through the corresponding portion of the monochrome transmissive liquid crystal modulator panel. An analyzer (154) conditions the polarization of the modulated component wavelength beam. A lens forms an image for projection onto a display surface (40).
-
Citations
33 Claims
-
1. A projection apparatus comprising:
-
a) an illumination section comprising;
i) a first light source for providing a first illumination beam;
ii) a second light source for providing a second illumination beam;
iii) a third light source for providing a third illumination beam;
b) first, second, and third component wavelength modulating sections, each component wavelength modulating section accepting the corresponding first, second, or third wavelength illumination and modulating the corresponding wavelength illumination to provide a first, second, or third modulated component wavelength beam respectively, each component wavelength modulating section comprising;
i) a portion of a monochrome transmissive liquid crystal modulator panel that has been segmented into at least a first portion, a second portion, and a third portion, and wherein each portion is spatially separated from each other portion;
ii) a component wavelength polarizer in the path of the component wavelength illumination for directing substantially polarized light to the corresponding portion of the monochrome transmissive liquid crystal modulator panel;
iii) an illumination path Fresnel lens for focusing incident illumination from the component wavelength polarizer through the corresponding portion of the monochrome transmissive liquid crystal modulator panel;
iv) an analyzer for conditioning the polarization of the modulated component wavelength beam;
v) a lens for forming an image for projection onto a display surface; and
whereby the image formed on the display surface comprises a plurality of superimposed component wavelength beams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
-
Specification