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:
Aug. 15, 2006
Filed:
Feb. 28, 2002
Michiaki Sakamoto, Tokyo, JP;
Yuichi Yamaguchi, Tokyo, JP;
Hidenori Ikeno, Tokyo, JP;
Fumihiko Matsuno, Tokyo, JP;
Hironori Kikkawa, Tokyo, JP;
Michiaki Sakamoto, Tokyo, JP;
Yuichi Yamaguchi, Tokyo, JP;
Hidenori Ikeno, Tokyo, JP;
Fumihiko Matsuno, Tokyo, JP;
Hironori Kikkawa, Tokyo, JP;
NEC LCD Technologies, Ltd., Kanagawa, JP;
Abstract
A reflector for a reflection-type LCD device is provided, which reflects efficiently incident light to the viewer's side and that suppresses the change of color tone. The reflector comprises a roughened surface having a protrusion pattern. The protrusion pattern gives inclination angle to the surface according to a specific distribution where a first component with an inclination angle value of 0° is 15% or less in area and a second component with an inclination angle value from 2° to 10° is 50% or greater in area. The protrusion pattern gives a variation range of chromaticity coordinates (x, y) on a chromaticity diagram dependent on an angle of view. The variation range is limited in a circle on the chromaticity diagram. The circle has a radius of approximately 0.05 and a center at a point corresponding to white color.