Patent ID: 7250999

Claim:
An electro-optical device comprising: an electro-optical material; and a plurality of pixel regions separately controlling optical states of the electro-optical material, the plurality of pixel regions being arranged in a matrix with pixels aligned in a first direction and in a second direction that intersects with the first direction, each pixel having a substantially rectangular shape with two opposing short sides extending in the first direction, each pixel region having a light transmitting portion and a light reflecting portion; and light reflectors provided for each pixel region, each light reflector including the respective light reflecting portion and an aperture at the light transmitting portion of the corresponding pixel region, the apertures in adjacent pixel regions having the same width in the first direction and a different two-dimensional area, each aperture having first and second edges that oppose each other and that extend in the first direction, the first edges of apertures in adjacent pixel regions being aligned in a straight line, and the second edges of apertures in adjacent pixel regions being out of alignment, in the first direction.