Optical modulating/display device and production method therefor and display apparatus mounting the optical modulating/displaying device thereon

摘要

The present invention relates to an optical modulating display device ( 200 ) such as a liquid crystal displaying device provided with a front-light type planar illuminating device. The above front-light type planar illuminating device allows illuminating light to propagate inside a substrate ( 1 ), and is provided with a low refraction layer ( 3 ) being lower in refractive index than the substrate ( 1 ) and being in close contact with the inner surface of the substrate ( 1 ), and with reflection structure ( 11 ) on the outer surface of the substrate ( 1 ). The optical modulating display device ( 200 ) provided with the above front-light type planar illuminating device can ensure a sufficient amount of guide light propagating inside the substrate ( 1 ) and reduce non-uniformity in display illumination. And a display apparatus mounting the above optical modulating display device ( 200 ) thereon can be reduced in thickness and weight and provide a high quality display.