Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – Active layer of indirect band gap semiconductor
Reexamination Certificate
2005-02-01
2005-02-01
Zarabian, Amir (Department: 2822)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
Active layer of indirect band gap semiconductor
C257S079000, C257S083000, C257S290000, C257S359000
Reexamination Certificate
active
06849877
ABSTRACT:
The present invention has an object of providing a light emitting device including an OLED formed on a plastic substrate, which can prevent the degradation due to penetration of moisture or oxygen. On a plastic substrate, a plurality of films for preventing oxygen or moisture from penetrating into an organic light emitting layer in the OLED (hereinafter, referred to as barrier films) and a film having a smaller stress than that of the barrier films (hereinafter, referred to as a stress relaxing film), the film being interposed between the barrier films, are provided. Owing to a laminate structure of a plurality of barrier films, even if a crack occurs in one of the barrier films, the other barrier film(s) can effectively prevent moisture or oxygen from penetrating into the organic light emitting layer. Moreover, the stress relaxing film, which has a smaller stress than that of the barrier films, is interposed between the barrier films, thereby making it possible to reduce a stress of the entire sealing film. As a result, a crack due to stress hardly occurs.
REFERENCES:
patent: 4489481 (1984-12-01), Jones
patent: 5107175 (1992-04-01), Hirano et al.
patent: 5124204 (1992-06-01), Yamashita et al.
patent: 5189405 (1993-02-01), Yamashita et al.
patent: 5455625 (1995-10-01), Englander
patent: 5627364 (1997-05-01), Codama et al.
patent: 5686360 (1997-11-01), Harvey, III et al.
patent: 5693956 (1997-12-01), Shi et al.
patent: 5757126 (1998-05-01), Harvey, III et al.
patent: 5771562 (1998-06-01), Harvey, III et al.
patent: 5811177 (1998-09-01), Shi et al.
patent: 5821138 (1998-10-01), Yamazaki et al.
patent: 5952778 (1999-09-01), Haskal et al.
patent: 5973449 (1999-10-01), Nakamura et al.
patent: 6127199 (2000-10-01), Inoue et al.
patent: 6144108 (2000-11-01), Ohizumi et al.
patent: 6146225 (2000-11-01), Sheats et al.
patent: 6150187 (2000-11-01), Zyung et al.
patent: 6198217 (2001-03-01), Suzuki et al.
patent: 6198220 (2001-03-01), Jones et al.
patent: 6268695 (2001-07-01), Affinito
patent: 6287955 (2001-09-01), Wang et al.
patent: 6329087 (2001-12-01), Okamoto
patent: 6372608 (2002-04-01), Shimoda et al.
patent: 6376105 (2002-04-01), Jonas et al.
patent: 6376333 (2002-04-01), Yamazaki et al.
patent: 6413645 (2002-07-01), Graff et al.
patent: 6475845 (2002-11-01), Kimura
patent: 6522067 (2003-02-01), Graff et al.
patent: 6541294 (2003-04-01), Yamazaki et al.
patent: 6586772 (2003-07-01), Bijlsma
patent: 6639360 (2003-10-01), Roberts et al.
patent: 6771677 (2004-08-01), Furukawa et al.
patent: 20010001485 (2001-05-01), Bao et al.
patent: 20010011726 (2001-08-01), Hayashi et al.
patent: 20010026835 (2001-10-01), Tanaka
patent: 20010030323 (2001-10-01), Ikeda
patent: 20010040645 (2001-11-01), Yamazaki
patent: 20020017643 (2002-02-01), Koyama
patent: 20020047120 (2002-04-01), Inukai
patent: 20020125817 (2002-09-01), Yamazaki et al.
patent: 20030027369 (2003-02-01), Yamazaki
patent: 20030155573 (2003-08-01), Yamazaki et al.
patent: 20030206332 (2003-11-01), Yamazaki et al.
patent: 05-315630 (1993-11-01), None
patent: 08-068990 (1996-03-01), None
patent: 08-288522 (1996-11-01), None
patent: 10-125929 (1998-05-01), None
patent: 10-125931 (1998-05-01), None
patent: 2000-173027 (2000-06-01), None
patent: 2001-118674 (2001-04-01), None
patent: 2001-272923 (2001-10-01), None
patent: 2002-082633 (2002-03-01), None
Tsutsui et al., “Electroluminescence in Organic Thin Films”, Photochemical Processes in Organized Molecular Systems, 1991, pp. 437-450.
M. A. Baldo et al., “Highly Efficient Phosphorescent Emission from Organic Electroluminescent Devices”, Nature vol. 395, Sep. 10, 1998, pp. 151-154.
M. A. Baldo et al., “Very High-Efficiency Green Organic Light-Emitting Devices Based on Electrophosphorescence”, Applied Physics Letters vol. 75, No. 1, Jul. 5, 1999, pp. 4-6.
Tsutsui et al., “High Quantum Efficiency in Organic Light-Emitting Devices with Irdium-Comolex as a Triplet Emissive Center”, Japanese Journal of Applied Physics vol. 38, Part 12B, Dec. 15, 1999, pp. L1502-1504.
U.S. Appl. No. 09/760,499 filed Jan. 11, 2001.
U.S. Utility Appl. No. 10/235,839.
Costellia Jeffrey L.
Nixon & Peabody LLP
Soward Ida M.
Zarabian Amir
LandOfFree
Light emitting device and method of manufacturing 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 Light emitting device and method of manufacturing the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light emitting device and method of manufacturing the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3483114