Patent ID: 7864272

Claim:
A substrate, for use in a reflection type liquid crystal display apparatus, including a semiconductor substrate placed in opposition to a transparent substrate sandwiching a liquid crystal therebetween to form the reflection type liquid crystal display apparatus comprising: a plurality of reflection electrodes arranged on an upper side of the semiconductor substrate in opposition to the transparent substrate; and a metal layer placed between the semiconductor substrate and the reflection electrodes, so as to reflect a light back incident through a gap between the reflection electrodes from the upper side of the semiconductor substrate toward the same upper side, wherein the metal layer has a first reflection surface at a region corresponding to the gap and a second reflection surface being flat at a region except for the region corresponding to the gap, and the first reflection surface is placed closer the semiconductor substrate than the second reflection surface, and wherein a distance between the second reflection surface and the reflection electrode is shorter than a wavelength range of the incident light, and a distance between the first reflection surface and a reflection surface of the reflection electrode is longer than a wavelength range of the incident light.