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:
Feb. 16, 2016
Filed:
Oct. 07, 2011
Applicants:
Kwang-woo Nam, Seoul, KR;
Jun-deok Choi, Seoul, KR;
Min-ki Ahn, Seoul, KR;
Inventors:
Assignee:
ROHM CO., LTD., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); G09G 3/36 (2006.01); G09G 3/34 (2006.01);
U.S. Cl.
CPC ...
H05B 37/02 (2013.01); G09G 3/3426 (2013.01); G09G 3/36 (2013.01); H05B 37/0218 (2013.01); G09G 2330/021 (2013.01); G09G 2330/028 (2013.01); G09G 2360/144 (2013.01); Y02B 20/46 (2013.01);
Abstract
A display device includes a lamp unit, a dimming signal controller, and an inverter device. The dimming signal controller receives a lamp brightness signal and an external environment illumination signal, selects the lamp brightness signal or a signal based on the received external environment illumination signal, and outputs the selected signal as a dimming signal. The inverter device may operate to control brightness of the lamp unit based on the dimming signal.