Patent ID: 6798468
Filing Date: 2004-09-28
Classification: G02F

Abstract:
A display device comprising:a polarization axis varying device; a first polarizing splitter device disposed on one side of said polarization axis varying device and which transmits a light ray component linearly polarized in a first direction while reflecting or absorbing a light ray component linearly polarized in a predetermined direction different from said first direction; a second polarizing splitter device, disposed on the other side of said polarization axis varying device and which reflects a light ray component linearly polarized in a second direction while transmitting a light ray component linearly polarized in a predetermined direction different from said second direction; a lighting device disposed on the side of said second polarizing splitter device opposite to said polarization axis varying device; and a light reflective device, disposed on the side of said lighting device opposite to said second polarizing splitter device; wherein said lighting device has a number of at least one of dimples and projections on a surface thereof on the viewer's side of the lighting device opposite to the light reflective device, and said surface also serving as a light diffusing plate diffusing and reflecting a light ray coming in from said second polarizing splitter device, while outputting a light ray toward said second polarizing splitter device.