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. 25, 2015
Filed:
Oct. 15, 2013
Applicant:
Magnachip Semiconductor, Ltd., Cheongju-si, KR;
Inventors:
Assignee:
Magnachip Semiconductor, Ltd., Cheongju-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); G11C 5/14 (2006.01); G11C 7/02 (2006.01); G11C 17/16 (2006.01); G11C 17/00 (2006.01);
U.S. Cl.
CPC ...
G09G 3/36 (2013.01); G09G 3/3696 (2013.01); G11C 5/145 (2013.01); G11C 5/147 (2013.01); G11C 7/02 (2013.01); G11C 17/00 (2013.01); G11C 17/16 (2013.01); G09G 2300/0426 (2013.01);
Abstract
A display driver IC with a built-in memory device having a one-time programmable function is provided. The memory device includes: a cell array comprising a plurality of one-time programmable unit cells and configured to receive a writing voltage generated from an internal voltage generating unit to operate upon writing operation; a detecting unit configured to detect a change of the writing voltage; and a controlling unit configured to control the internal voltage generating unit and the unit cells according to an output signal of the detecting unit.