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:
Jul. 09, 2013
Filed:
Nov. 13, 2009
Moon-hwan Chang, Yongin-si, KR;
Yong-hoon Kwon, Asan-si, KR;
Gi-cherl Kim, Yongin-si, KR;
Si-joon Song, Suwon-si, KR;
Sang-il Park, Seoul, KR;
Byoung-dae YE, Yongin-si, KR;
Moon-Hwan Chang, Yongin-si, KR;
Yong-Hoon Kwon, Asan-si, KR;
Gi-Cherl Kim, Yongin-si, KR;
Si-Joon Song, Suwon-si, KR;
Sang-Il Park, Seoul, KR;
Byoung-Dae Ye, Yongin-si, KR;
Samsung Display Co., Ltd., , KR;
Abstract
A light source apparatus includes a light source module, a local dimming control part and a light source driving part. The light source module includes a plurality of light-emitting blocks. Each of the light-emitting blocks includes a first color light source, a second color light source and a third color light source, respectively. The local dimming control part drives the light-emitting blocks by blocks. The local dimming control part sets a reference duty signal for first, second and third color driving signals in accordance with a driving mode of the light source module. The light source driving part generates the first color driving signal, the second color driving signal and the third color driving signal by using the reference duty ratio set in accordance with the driving mode and a driving current having a same peak current level in accordance with the driving mode.