(19)
(11)EP 2 204 862 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
30.11.2011 Bulletin 2011/48

(43)Date of publication A2:
07.07.2010 Bulletin 2010/27

(21)Application number: 09252745.6

(22)Date of filing:  08.12.2009
(51)International Patent Classification (IPC): 
H01L 51/50(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 RS

(30)Priority: 26.12.2008 KR 20080134984

(71)Applicant: Samsung Mobile Display Co., Ltd.
Yongin-city, Gyunggi-do 446-711 (KR)

(72)Inventors:
  • Kho, Sam-Il
    Yongin-city, Gyunggi-do 446-711 (KR)
  • Jeong, Dong-Seob
    Yongin-city, Gyunggi-do 446-711 (KR)
  • Cho, Jae-Young
    Yongin-city, Gyunggi-do 446-711 (KR)
  • Sung-Woo Cho
    Yongin-city, Gyunggi-do 446-711 (KR)
  • Min-Chul Suh
    Yongin-city, Gyunggi-do 446-711 (KR)

(74)Representative: Mounteney, Simon James 
Marks & Clerk LLP 90 Long Acre
London WC2E 9RA
London WC2E 9RA (GB)

  


(54)Organic light emitting device


(57) An organic light emitting device (OLED) including: a substrate (110); a first electrode (210) a second electrode (230) facing the first electrode; a first blue light emitting layer (EML1), a green light emitting layer (EML2), a red light emitting layer (EML3), and a second blue light emitting layer (EML4) all interposed between the first electrode and the second electrode; and a color filter (300) disposed in a path of light emitted from the light emitting layers, wherein the first blue light emitting layer includes a deep blue dopant, and the second blue light emitting layer includes a sky blue dopant.










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