Invention Grant
- Patent Title: White organic light emitting device (OLED)
- Patent Title (中): 白色有机发光器件(OLED)
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Application No.: US12213356Application Date: 2008-06-18
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Publication No.: US08119258B2Publication Date: 2012-02-21
- Inventor: Jung-Bae Song , Sung-Hun Lee , Sang-Yeol Kim , Mu-Gyeom Kim
- Applicant: Jung-Bae Song , Sung-Hun Lee , Sang-Yeol Kim , Mu-Gyeom Kim
- Applicant Address: KR Yeongtong-gu, Suwon-si, Gyeonggi-do KR Giheung-Gu, Yongin, Gyunggi-Do
- Assignee: Samsung Electronics Co., Ltd.,Samsung Mobile Display Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.,Samsung Mobile Display Co., Ltd.
- Current Assignee Address: KR Yeongtong-gu, Suwon-si, Gyeonggi-do KR Giheung-Gu, Yongin, Gyunggi-Do
- Agent Robert E. Bushnell, Esq.
- Priority: KR10-2008-0020083 20080304
- Main IPC: H01L51/54
- IPC: H01L51/54

Abstract:
A white Organic Light Emitting Device (OLED) includes: an anode and cathode spaced apart from each other; first, second, and third light emitting layers sequentially stacked between the anode and the cathode; and an electron injection induction layer, arranged between the second light emitting layer and the third light emitting layer, to induce the electron to flow into the second light emitting layer from the third light emitting layer. A difference between a Lowest Occupied Molecular Orbital (LUMO) energy level of the electron injection induction layer and the LUMO energy level of a dopant existing in the second light emitting layer is 0.4 eV or below.
Public/Granted literature
- US20090226757A1 White organic light emitting device (OLED) Public/Granted day:2009-09-10
Information query
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