Patent ID: 7164454
Filing Date: 2007-01-16
Classification: G02B,G02F

Abstract:
1. A color display device, comprising: a light source; wavelength separation means for separating a light irradiated from the light source into lights of a plurality of wavelength regions; condensing means for receiving the light separated by the wavelength separation means and condensing lights of predetermined wavelength regions while corresponding to predetermined sub-pixels; and angle correcting means for emitting the light of each sub-pixel, the light being condensed by the condensing means for each of the sub-pixels, while giving thereto a distribution of emission angles approximately symmetric and equivalent with respect to a frontal direction as a center, wherein the angle correcting means is constituted of an optical structure in which a light incident side is made of a high refractive index layer, a light emitting side is made of a low refractive index layer, and a shape is made to differ for each of the sub-pixels.