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:
Nov. 07, 2006
Filed:
Feb. 26, 2004
Masaaki Kabe, Kanagawa, JP;
Youko Takada, Kanagawa, JP;
Eiji Sakai, Kanagawa, JP;
Makoto Jisaki, Kanagawa, JP;
Hidemasa Yamaguchi, Kanagawa, JP;
Shuichi Tatemori, Kanagawa, JP;
Masaaki Kabe, Kanagawa, JP;
Youko Takada, Kanagawa, JP;
Eiji Sakai, Kanagawa, JP;
Makoto Jisaki, Kanagawa, JP;
Hidemasa Yamaguchi, Kanagawa, JP;
Shuichi Tatemori, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A liquid crystal display device free from reduction of chromaticity and having a good image quality in comparison with a normally white mode semi-transmission liquid crystal display device even in a case of employing a normally black mode, able to secure a gap of a reflection portion able to suppress occurrence of defects, enabling a reduction of voltage, able to realize a reduction of power consumption, exhibiting a more natural color of the dark state of transmission, and able to improve the image quality, wherein a reflection portion and a transmission portion are provided in one pixel, a normally black mode which becomes a dark state when no voltage is supplied is employed, an orientation mode of the liquid crystals is a twist orientation, a polarization plate and one phase difference plate are provided on a viewing surface side, and a polarization plate is provided on a back surface side.