The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 20, 2001
Filed:
Jan. 28, 1998
Narutoshi Hayashi, Ehime, JP;
Nobuyuki Kurata, Ehime, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A reflector having one or two reflection angles exhibiting maximums in an angle-dependent distribution curve of intensity of reflected light which is generated when light is illuminated from a light source on the surface of the reflector at specific angles, wherein at least one angle exhibiting the maximum deviates by at least 5 degrees from a regular reflection angle in relation to the incidence angle of the light, and the surface roughness of the reflector is between 200 nm and 1500 nm in terms of a center line average roughness (Ra), and a semi-transmissive reflector having one or two reflection angles which exhibit maximums in an angle-dependent distribution curve of intensity of reflected light which is generated when light is illuminated from a light source on the surface of the reflector at specific angles, wherein at least one angle exhibiting the maximum deviates by at least 5 degrees from a regular reflection angle in relation to the incidence angle of the light. A reflective liquid crystal can display bright images with good visibility, when such a reflector is attached on the liquid crystal display and the screen is viewed from an angle at which the reflection of the external light is avoided.