(19)
(11)EP 2 228 787 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
17.08.2011 Bulletin 2011/33

(43)Date of publication A2:
15.09.2010 Bulletin 2010/37

(21)Application number: 10156374.0

(22)Date of filing:  12.03.2010
(51)International Patent Classification (IPC): 
G09G 3/34(2006.01)
H05B 33/08(2006.01)
(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
AL BA ME RS

(30)Priority: 13.03.2009 KR 20090021803

(71)Applicant: SAMSUNG ELECTRONICS CO., LTD.
Suwon-si Gyeonggi-do 442-742 (KR)

(72)Inventors:
  • KEH, Yong-Chan
    442-742, Gyeonggi-do (KR)
  • PARK, Byeong-Hoon
    442-742, Gyeonggi-do (KR)
  • KIM, Yong-Kwan
    442-742, Gyeonggi-do (KR)

(74)Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Leopoldstrasse 4
80802 München
80802 München (DE)

  


(54)Light source driving apparatus


(57) A light source driving apparatus is disclosed which includes a power supply including a power supp ly terminal connected to a first path through which a power source is supplied to a light source and including a feedback terminal for receiving a feedback of the power source supplied to the light source, a feedback resistor con nected to the feedback terminal, and a current divider for branching a current flowing into the first path and supplying the branched current to the feedback resistor.







Search report