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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.:

US 7298430 B1

PDFFull Text
Expired
Date of Patent:
Nov. 20, 2007

Filed:

Jan. 21, 2004

Liquid crystal display device

Applicants:

Tomonori Nishino, Mobara, JP;

Masayuki Hikiba, Mobara, JP;

Kouichi Anno, Mobara, JP;

Inventors:

Tomonori Nishino, Mobara, JP;

Masayuki Hikiba, Mobara, JP;

Kouichi Anno, Mobara, JP;

Assignee:

Hitachi Displays, Ltd., Chiba-ken, JP;

Attorneys:

Reed Smith LLP

Stanley P. Fisher, Esq.

Juan Carlos A. Marquez, Esq.

Primary Examiner:

Thoi V Duong

Int. Cl.
CPC ...
G02F 1/1343 (2006.01);
U.S. Cl.
CPC ...
Abstract

The liquid crystal display device of the present invention can prevent the generation of the frame-like brightness difference at a portion which surrounds a light transmitting region. A pixel region formed over one substrate SUBwhich constitutes a liquid crystal display device includes a light transmitting region LTA which allows transmitting of light and a light reflecting region LRA which allows reflection of light. The light transmitting region LTA includes a first pixel electrode TPX formed of a conductive layer having the light transmitting property, while the light reflecting region LRA is formed of a second pixel electrode RPX formed of a conductive film having the non-light-transmitting property. A holding capacitance electrode CT which is connected to a holding capacitance line CL is formed below the second pixel electrode RPX. The holding capacitance electrode is formed of a material having light shielding property and is arranged such that the holding capacitance electrode is overlapped to a boundary portion between the light transmitting region LTA and the light reflecting region LRA, whereby the generation of the frame-like brightness difference at the portion which surrounds the light transmitting region LTA can be prevented.

Find Patent Forward Citations

Nishino, Tomonori. (2007). Liquid crystal display device (U.S. Patent No. 7298430). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7298430

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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