Mask, substrate with light reflecting film, method for manufacturing light reflecting film, optical display device, and electronic apparatus
AssigneeSeiko Epson Corporation
InventorsToshihiro Otake, Mutsumi Matsuo, Tadashi Tsuyuki
Life of this patent
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Abstract
A light reflecting film is formed such that a plurality of concave portions or convex portions formed on a base are aligned randomly over a plane by using a mask in which the positions of light-transmitting parts or non-light-transmitting parts are allocated according to a random function, and the light-transmitting parts or non-light-transmitting parts are aligned randomly over a plane.
Claims17
A mask for manufacturing a substrate with a light reflecting film, the mask comprising:
- light-transmitting parts and non-light transmitting parts, wherein positions of light-transmitting parts or non-light-transmitting parts are allocated according to a random function, and the light-transmitting parts or non-light-transmitting parts are aligned randomly over a plane.
A substrate with a light reflecting film comprising:
- a base;
- and
- a reflecting layer on the base, wherein positions of a plurality of concave portions or convex portions formed on the base are allocated according to a random function, and the concave portions or convex portions are aligned randomly over a plane.
A method of manufacturing a light reflecting film including a base and a reflecting layer, the method comprising the steps of:
- forming a first base having a plurality of concave portions or convex portions aligned randomly over a plane by exposing a coated photosensitive resin by using a mask in which positions of light-transmitting parts or non-light-transmitting parts are allocated according to a random function, and the light-transmitting parts or non-light-transmitting parts are aligned randomly over a plane;
- forming a second base having a plurality of continuous concave portions or convex portions by coating the first base with a photosensitive resin and exposing it;
- and
- forming the reflecting layer on the second base.
An optical display device comprising:
- an optical device interposed between substrates;
- and
- a light reflecting film provided on one of substrates opposite to the viewing side of the optical device, wherein the light reflecting film includes a base and a reflecting layer, and a plurality of concave portions or convex portions are formed on the base at positions allocated according to a random function, and the plurality of concave portions or convex portions are aligned randomly over a plane.
17 An electronic apparatus comprising an optical display device including a light reflecting film, wherein the light reflecting film comprises a base and a reflecting layer, the positions of a plurality of concave portions or convex portions formed on the base are allocated according to a random function, and the plurality of concave portions or convex portions are aligned randomly over a plane.
Dependencies are inferred from the claim text.