Patent ID: 8337022
Filing Date: 2012-12-25
Classification: G03B,H04N

Abstract:
1. A rear projection image display apparatus comprising: a projector configured to project an image having a high luminance; a transmission type screen including a first screen having a fibrous texture and configured to diffract light incident from the projector in accordance with a fiber roughness of the fibrous texture, and a second screen comprising diffusing particles in a vinyl chloride resin attached to the first screen on a side of the first screen opposite the projector and configured to diffuse light incident from the first screen and output the diffused light; a first polarizing plate having a first polarization direction, the first polarizing plate disposed in front of an exit pupil of the projector and at a first distance from the transmission type screen; and a second polarizing plate having a second polarizing direction that is substantially orthogonal to the first polarizing direction, the second polarizing plate being disposed near a rear surface side opposite to an irradiation surface of the transmission type screen and at a second distance from the transmission type screen, which is smaller than the first distance, wherein only the first polarizing plate and the second polarizing plate are configured to polarize the image projected from the projector.