Organic light emitting device and flat display including the...

Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Organic light emitting device and flat display including the... 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 device and flat display including the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic light emitting device and flat display including the... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2653114

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.