Patent ID: 7190417
Filing Date: 2007-03-13
Classification: G02F,H04N

Abstract:
1. An optical address type spatial light modulator comprising a plurality of optical address type light modulation layers stacked on each other, wherein each of optical address type light modulation layers comprises: wherein each of liquid crystal layers and each of photoconductive layers are stacked on each other; wherein the specific wavelength bands of the respective liquid crystal layers are substantially different from, each other; wherein each of the optical address type light modulation layers further comprises a light absorption layer stacked between the liquid crystal layer and the photoconductive layer; wherein in each optical address type light modulation layer, the light absorption layer absorbs the visible light in a specific wavelength band substantially identical with the specific wavelength band of the liquid crystal layer; and wherein the light absorption layers transmit visible light in wavelength bands except the specific wavelength bands.