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AssigneeSeiko Epson Corporation
InventorsToshihiro Otake, Mutsumi Matsuo, Tadashi Tsuyuki
Estimating the term…
A substrate is provided with a light reflecting film in which the depths of a plurality of concave portions formed on the surface of the base or the heights of a plurality of convex portions formed on the surface of the base are substantially equal, the planar shapes of the plurality of concave portions or the convex portions are overlapped circles and overlapped polygons, or any one of the aforesaid circles and polygons, and a plurality of concave portions or convex portions are randomly arranged over a plane, the substrate with the light reflecting film being prepared by using a mask comprising light-transmitting parts or non-light-transmitting parts formed by a plurality of dots less than the number of the dot regions as one unit, in which the light-transmitting parts or the non-light-transmitting parts are randomly arranged in the unit, and a plurality of the one unit is repeated.
A mask for forming a pattern on a substrate having a plurality of dot regions, the mask comprising:
A substrate comprising:
An electro-optical device having a plurality of dot regions, comprising:
An electro-optical device comprising:
A method for forming a light reflecting film on a base having a plurality of dot regions, comprising the steps of:
Dependencies are inferred from the claim text.