(19)
(11)EP 3 038 079 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
05.10.2016 Bulletin 2016/40

(43)Date of publication A2:
29.06.2016 Bulletin 2016/26

(21)Application number: 15199085.0

(22)Date of filing:  10.12.2015
(51)Int. Cl.: 
G09G 3/00  (2006.01)
G09G 3/32  (2006.01)
G01R 31/02  (2006.01)
H05B 33/08  (2006.01)
(84)Designated Contracting States:
AL 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 RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(30)Priority: 24.12.2014 KR 20140188105

(71)Applicant: LG Display Co., Ltd.
Seoul 07336 (KR)

(72)Inventor:
  • LEE, Juseok
    413-779 Gyeonggi-do (KR)

(74)Representative: Ter Meer Steinmeister & Partner 
Patentanwälte mbB Nymphenburger Straße 4
80335 München
80335 München (DE)

  


(54)OVER-CURRENT CONTROL DEVICE AND ORGANIC LIGHT EMITTING DISPLAY DEVICE ADPOTING THE SAME


(57) The present invention relates to an over current control device and an organic light emitting display device adopting a function of interrupting an over-current. To provide a over current control device and a OLED device using the same, which allow a fast and reliable detection of an over current, an over current control device for detecting an over current provided to an OLED is provided, comprising: an over-current identification unit (410) adapted to compare a driving voltage (EVDD) on a supply line for driving the OLED with a reference voltage (V_over) on a reference voltage line for identifying the over-current; an interruption unit (420) connected between the supply line supplying the driving voltage (EVDD) and the pixel including the OLED for interrupting the power supply if the over-current identification unit (410) recognizes an over-current flowing through the supply line.