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:
May. 31, 2011
Filed:
Jan. 25, 2008
Chieko Araki, Hitachi, JP;
Masaya Adachi, Hitachi, JP;
Osamu Itou, Hitachi, JP;
Shoichi Hirota, Hitachi, JP;
Shinichiro Oka, Hitachi, JP;
Jun Tanaka, Kawasaki, JP;
Miharu Otani, Yokohama, JP;
Chieko Araki, Hitachi, JP;
Masaya Adachi, Hitachi, JP;
Osamu Itou, Hitachi, JP;
Shoichi Hirota, Hitachi, JP;
Shinichiro Oka, Hitachi, JP;
Jun Tanaka, Kawasaki, JP;
Miharu Otani, Yokohama, JP;
Hitachi Displays, Ltd., Chiba, JP;
Abstract
In a transflective liquid crystal display device having a first substrate, a second substrate, a liquid crystal layer disposed between the two substrates and a reflective region and a transmissive region in each pixel; the second substrate has a pixel electrode to drive the liquid crystal layer and a common electrode; the reflective region of the second substrate is formed with an in-cell polarizer between the pixel electrode and common electrode and the reflector. In this invention, the thickness of the liquid crystal layer is set greater in the reflective region than in the transmissive region. The difference in the liquid crystal layer thickness between the reflective region and the transmissive region is provided by forming a step in the first substrate or the second substrate.