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:
Aug. 11, 2015
Filed:
Sep. 20, 2010
Applicants:
Yu-han Bae, Seoul, KR;
Young-su Kim, Daegu, KR;
Jae-hoon Lee, Seoul, KR;
Inventors:
Assignee:
SAMSUNG DISPLAY CO., LTD., , KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/07 (2006.01); G09G 3/36 (2006.01); G11C 5/14 (2006.01); G11C 19/28 (2006.01);
U.S. Cl.
CPC ...
H02M 3/07 (2013.01); G09G 3/3648 (2013.01); G09G 3/3677 (2013.01); G11C 5/145 (2013.01); G11C 19/28 (2013.01); G09G 2230/00 (2013.01); G09G 2300/0408 (2013.01); G09G 2310/0286 (2013.01); H02M 2003/072 (2013.01);
Abstract
A voltage generating circuit includes a first charge pumping part and a second charge pumping part. The first charge pumping part pumps a switching voltage, in response to a reference voltage, to output a first voltage. The second charge pumping part pumps the switching voltage, in response to the first voltage, to output a second voltage that is lower than the first voltage that is varied in accordance with time.