Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2011-08-09
2011-08-09
Guharay, Karabi (Department: 2889)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S504000
Reexamination Certificate
active
07994713
ABSTRACT:
An organic light emitting diode (OLED) and a method of fabricating the same are provided. In the OLED, a second electron transport layer having an absolute value of a lowest unoccupied molecular orbital (LUMO) energy level smaller than that of a first electron transport layer is formed between a second electrode and the first electron transport layer, so that the second electron transport layer can suppress injection and transport of electrons under a low voltage condition to maintain a low current density. Accordingly, it is possible to prevent (or block) an element from emitting light when representing the color black. The OLED includes an emission layer on the first electrode, the first electron transport layer on the emission layer, the second electron transport layer on the first electron transport layer, and the second electrode on the second electron transport layer.
REFERENCES:
patent: 2005/0179370 (2005-08-01), Nakayama et al.
patent: 2008/0231174 (2008-09-01), Parthasarathy et al.
patent: 2009/0218934 (2009-09-01), Song et al.
patent: 2010/0243992 (2010-09-01), Tsuji et al.
patent: 2001-247498 (2001-09-01), None
patent: 2002-043063 (2002-02-01), None
patent: 2006-049438 (2006-02-01), None
patent: 2006-066872 (2006-03-01), None
patent: 10-2005-0054945 (2005-06-01), None
patent: 10-2005-0092102 (2005-09-01), None
patent: 10-2006-0134469 (2006-12-01), None
patent: 10-2007-0093881 (2007-09-01), None
patent: WO 2004/082338 (2004-09-01), None
patent: WO 2007/069741 (2007-06-01), None
Office action dated Sep. 12, 2008 for corresponding Korean Patent Application No. 10-2008-0004546 indicating relevance of KR 10-2005-0092102 and KR 10-2005-0054945.
KIPO Notice of Allowability dated Mar. 6, 2009, for priority Korean application 10-2008-0004546 noting reference listed in this IDS and KR 10-2005-0054945 and KR 10-2005-0092102 listed in the Jan. 8, 2009 IDS.
Notice of Allowance dated Dec. 21, 2010 in corresponding Japanese Patent Application No. 2008-306326, 3 pages.
Bae Sung-Jun
Chun Byung-Hoon
Kang Seong-Jong
Lee Eun-Jung
Yoon Ji-Hwan
Christie Parker & Hale LLP
Guharay Karabi
Samsung Mobile Display Co., Ltd.
LandOfFree
Organic light emitting diode and method of fabricating the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Organic light emitting diode and method of fabricating the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic light emitting diode and method of fabricating the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2686911