Organic light emitting device having an external microcavity

Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C313S506000, C428S690000

Reexamination Certificate

active

07728512

ABSTRACT:
A device is provided that includes an organic emissive layer and a microcavity vertically stacked with the emissive layer, where the emissive layer is not in a microcavity. The microcavity may allow for improved saturation and intensity of emitted light at a variety of viewing angles.

REFERENCES:
patent: 5707745 (1998-01-01), Forrest et al.
patent: 5920080 (1999-07-01), Jones
patent: 5932895 (1999-08-01), Shen et al.
patent: 5949187 (1999-09-01), Xu et al.
patent: 6133692 (2000-10-01), Xu et al.
patent: 6232714 (2001-05-01), Shen et al.
patent: 6326224 (2001-12-01), Xu et al.
patent: 6337492 (2002-01-01), Jones et al.
patent: 6548956 (2003-04-01), Forrest et al.
patent: 6885149 (2005-04-01), Parthasarathy et al.
patent: 7023013 (2006-04-01), Ricks et al.
patent: 2004/0263441 (2004-12-01), Tanaka et al.
patent: 2005/0249972 (2005-11-01), Hatwar et al.
patent: 2006/0006792 (2006-01-01), Strip
patent: 1 154 676 (2001-11-01), None
patent: 1 450 419 (2004-08-01), None
patent: 1 513 205 (2005-03-01), None
patent: 1 555 855 (2005-07-01), None
patent: WO 01/06816 (2001-01-01), None
patent: WO 2006/083413 (2006-08-01), None
J. Chan et al., “Cavity design and optimization for organic microcavity OLEDs,” Proc. Of SPIE, 2006, vol. 6038.
Ting-Yi Cho et al., “Microcavity two-unit tandem organic light-emitting devices having a high efficiency,” Appl. Phys. Lett., Mar. 14, 2006, vol. 88, No. 11106.
Aleksandra B. Djurisic et al., “Organic microcavity light-emitting diodes with metal mirrors: dependence of the emission wavelength on the viewing angle,” Appl. Optics, Dec. 20, 2002, vol. 41, No. 36, pp. 7650-7656.
A. Dodabalapur et al., “Microcavity effects in semiconductors,” Appl. Phys. Lett., May 9, 1994, vol. 64, No. 19, pp. 2486-2488.
A. Dodabalapur et al., “Physics and applications of organic microcavity light emitting diodes,” J. Appl. Phys., Dec. 15, 1996, vol. 80, No. 12, pp. 6954-6964.
Sijin Han, “Color tunable metal-cavity organic light-emitting diodes with fullerene layer,” J. Appl. Phys., Apr. 20, 2005, vol. 97, No. 093102.
R.H. Jordan et al., “Efficiency enhancement of microcavity organic light emitting diodes,” Appl. Phys. Lett., Sep. 30, 1996, vol. 69, No. 14, pp. 1997-1999.
X. Liu et al., “Microcavity organic light emitting diodes wwith double sided light emission of different colors,” J. Vac. Sci. Tech. A, May 11, 2004, vol. 22, No. 3, pp. 764-767.
L.J. Rothberg et al., “Resonant cavity organic electroluminescent devices,” 1994, IEEE IEDM 94, pp. 571-573.
Takahiro Shiga et al., “Design of multiwavelength resonant cavities for white organic light-emitting diodes,” J. App. Phys., Jan. 1, 2003, vol. 93, No. 1, pp. 19-22.
Shizuo Tokito, “Microcavity organic light-emitting diodes for strongly directed pure red, green, and blue emissions,” J. Appl. Phys., Sep. 1, 1999, vol. 86, No. 5, pp. 2407-2411.
PCT International Search Report and Written Opinion for PCT/US2008/001744 mailed on Jul. 4, 2008.
Adawi et al., 2006, “Improving the Light extraction efficiency of red-emitting conjugated polymer light emitting diodes”, J. Of Appl. Phys. 99:54505-1-54505-8.

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

Rate now

     

Profile ID: LFUS-PAI-O-4249754

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