Patent ID: 6147937
Filing Date: 2000-11-14
Classification: G02F

Abstract:
A display device comprising:a polarization axis changing element that selectively changes a polarization axis of light transmitted therethrough;a first polarization separator and a second polarization separator respectively arranged on front and rear sides of said polarization changing element with said polarization changing element interposed therebetween; anda light source arranged on a side of said second polarization separator opposed to said polarization axis changing element with said second polarization separator interposed therebetween;said first polarization separator transmitting all wavelengths, in the visible light region, of light linearly polarized in a first direction, and transmitting a specific wavelength, in the visible light region, of light linearly polarized in a second direction perpendicular to said first direction, and not transmitting other wavelengths of light linearly polarized in the second direction therethrough;said second polarization separator transmitting light linearly polarized in a third direction while reflecting light linearly polarized in a direction perpendicular to said third direction; andsaid light source emits colored light.