Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Reexamination Certificate
2011-01-11
2011-01-11
Such, Matthew W (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
C257SE51018, C257SE51044, C313S504000
Reexamination Certificate
active
07868321
ABSTRACT:
Provided are an organic light emitting device (OLED) and a flat display including the OLED. The OLED includes an organic layer which includes a pixel electrode, an opposite electrode, and at least an emission layer between the pixel electrode and the opposite electrode, wherein the emission layer includes a long wavelength-blue emission layer emitting blue light having a long wavelength and a short wavelength-blue emission layer emitting blue light having a short wavelength. The long wavelength-blue emission layer is positioned in a location to enhance emission of blue light from the emission layer. The OLED can emit blue light with high efficiency and high brightness.
REFERENCES:
patent: 5940053 (1999-08-01), Ikeda
patent: 2005/0100760 (2005-05-01), Yokoyama
patent: 2005/0112404 (2005-05-01), Hamada et al.
patent: 2005/0129982 (2005-06-01), Fukuoka et al.
patent: 2005/0287394 (2005-12-01), Yang et al.
patent: 2007/0009759 (2007-01-01), Burn et al.
patent: 2007/0241669 (2007-10-01), Liu et al.
patent: 2005-108726 (2005-04-01), None
patent: 2005-119156 (2005-12-01), None
patent: 2006-013488 (2006-12-01), None
patent: 10-2001-0080488 (2001-08-01), None
patent: 10-2006-0011067 (2006-02-01), None
patent: WO 98/08360 (1998-02-01), None
patent: WO 00/18193 (2000-03-01), None
patent: WO 2001/21729 (2001-03-01), None
patent: WO 2004/101707 (2004-11-01), None
Yeh, S.-J., et al. “New Dopant and Host Materials for Blue-Light-Emitting Phosphorescent Organic Electroluminescent Devices.” Adv. Mater., vol. 17 (2005): pp. 285-289.
Lee, M.-T., et al. “Highly Efficient, Deep-Blue Doped Organic Light-Emitting Devices.” Adv. Mater., vol. 17 (2005): pp. 2493- 2497.
He G., et al. “Very High-Efficiency and Low Voltage Phosphorescent Organic Light-Emitting Diodes Based on a p-i-n. Junction.” J. Appl. Phys., vol. 95 (2004): pp. 5773-5777.
Yu, M.-X., et al. “Diaminoanthracene Derivatives as High-Performance Green Host Electroluminescent Materials.” Chem. Mater., vol. 14 (2002): pp. 3958-3963.
Laskar, I.R., et al. “Investigating Photoluminescence and Electroluminescence of Iridium(III)-Based Blue-Emitting Phosphors.” Polyhedron, vol. 25 (2006): pp. 1167-1176.
Yu, M.-X., et al. “Diaminoanthracene Derivatives as High-Performance Green Host Electroluminescent Materials.” Chem. Mater., vol. 14 (2002): pp. 3958-3963.
Shi, J. & Tang, C.W., et al. “Anthracene Derivatives for Stable Blue-Emitting Organic Electroluminescent Devices.” Appl. Phys. Lett., vol. 80 (2002): pp. 3201-3203.
O'Brien, D.F., et al. “Improved Energy Transfer in Electrophosphorescent Devices.” Appl. Phys. Lett., vol. 74 (1999): pp. 442-444.
He, G., et al. “High-Efficiency and Low-Voltage p-i-n. Electrophosphorescent Organic Light-Emitting Diodes with Double-Emission Layers.” Appl. Phys. Lett., vol. 85 (2004): pp. 3911-3913.
Tokito, S., et al. “High-Efficiency Blue and White Phosphorescent Organic Light-Emitting Devices.” Curr. Appl. Phys., vol. 5 (2005): pp. 331-336.
European Search Report (a counterpart European Application No. EP 07250194.3).
Kim Hee-Yeon
Ko Hee-Joo
Lee Chang-Ho
Shin Jung-Han
Yang Seung-Gak
Knobbe Martens Olson & Bear LLP
Samsung Mobile Display Co., Ltd.
Such Matthew W
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