Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With heterojunction
Reexamination Certificate
2005-06-10
2009-06-09
Weiss, Howard (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
With heterojunction
C257S013000, C257S084000, C257SE33074
Reexamination Certificate
active
07544972
ABSTRACT:
An organic electroluminescent display device and a method of preparing the same are provided. The organic electroluminescent display device may include a first electrode formed on a substrate. A second electrode may be formed so as to be insulated from the first electrode. One or more organic layers may be interposed between the first electrode and the second electrode and include at least an emission layer. A protective layer may be formed so as to cover the second electrode. The protective layer may have a surface roughness (rms) of about 5 Å to about 50 Å. The organic electroluminescent display device including a protective layer having a low surface roughness may benefit from superior lifespan characteristics.
REFERENCES:
patent: 6319867 (2001-11-01), Chacon et al.
patent: 6406802 (2002-06-01), Arai et al.
patent: 6602606 (2003-08-01), Fujisawa et al.
patent: 2001/0035713 (2001-11-01), Kimura
patent: 2004/0259387 (2004-12-01), Yamazaki et al.
patent: 2005/0285510 (2005-12-01), Han et al.
patent: 1501750 (2004-06-01), None
patent: 10-2001-0067868 (2001-07-01), None
patent: 02-091064 (2002-11-01), None
Chinese Office Action dated Oct. 10, 2008.
Han Dong-Won
Kwon Jang-Hyuk
Park Jin-Woo
H.C. Park & Associates PLC
Ingham John C
Samsung Mobile Display Co., Ltd.
Weiss Howard
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