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:
Jan. 02, 2018
Filed:
Feb. 10, 2016
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Motoaki Nishimura, Chino, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 1/00 (2006.01); G09G 3/00 (2006.01);
U.S. Cl.
CPC ...
G09G 3/006 (2013.01); G09G 2330/021 (2013.01); G09G 2330/028 (2013.01); G09G 2330/04 (2013.01); G09G 2330/12 (2013.01);
Abstract
A driver includes a power supply circuit having first to n-th boost circuits, a circuit that operates based on power supplied from the power supply circuit, and an abnormality detection circuit. The abnormality detection circuit detects an abnormality of an i-th boosted voltage that is generated based on a boost operation of an i-th boost circuit. If an abnormality of the i-th boosted voltage is detected, a j-th boost circuit performs a low-capacity boost operation with a lower current-supply capacity than an ordinary boost operation or stops the boost operation.