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:
Dec. 06, 2011
Filed:
Jul. 13, 2005
Applicants:
Naoyasu Ikeda, Tokyo, JP;
Hiroshi Haga, Tokyo, JP;
Tomohiko Otose, Tokyo, JP;
Tatsuya Uchikawa, Tokyo, JP;
Daisuke Suzuki, Tokyo, JP;
Inventors:
Naoyasu Ikeda, Tokyo, JP;
Hiroshi Haga, Tokyo, JP;
Tomohiko Otose, Tokyo, JP;
Tatsuya Uchikawa, Tokyo, JP;
Daisuke Suzuki, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/038 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light-detecting element, an analog-to-digital converter circuit, and a parallel-serial converter circuit are mounted on a substrate, using a thin film transistor, of an active matrix-type display device, and when a circuit is selected by an external chip-select signal, the luminance is adjusted by transmitting a signal of the light-detecting element, converted into digital data, to a luminance control circuit in sync with a clock signal.