Light emitting device and manufacturing method thereof

Details Light emitting device and manufacturing method thereof Light emitting device and manufacturing method thereof

2010-07-15

2011-10-25

Kebede, Brook (Department: 2894)

Active solid-state devices (e.g., transistors, solid-state diode

Organic semiconductor material

C257SE31095

Reexamination Certificate

active

08044393

ABSTRACT:
A light emitting device is provided, which uses alternating current drive as a method of driving the light emitting device, and in which light emission is always obtained when voltages having different polarities are alternately applied, and a method of manufacturing the light emitting device is also provided. A first light emitting element made from an anode, an organic compound layer, and a cathode, and a second electrode made from an anode, an organic compound layer, and a cathode are formed. The light emitting elements are formed sandwiching the same organic compound layer. The anode of the first light emitting element and the anode of the second light emitting element, and the cathode of the first light emitting element and the cathode of the second light emitting element, are formed on opposite sides of the organic compound layer, respectively, thus sandwiching the organic compound layer. Note that voltages having an inverse polarity are applied alternately by the alternating current drive, and therefore light can always be emitted by any one of the first light emitting element or the second light emitting element.

REFERENCES:
patent: 4678285 (1987-07-01), Ohta et al.
patent: 5319480 (1994-06-01), McCartney
patent: 5552678 (1996-09-01), Tang et al.
patent: 5717474 (1998-02-01), Sarma
patent: 5748276 (1998-05-01), Uno et al.
patent: 5834894 (1998-11-01), Shirasaki et al.
patent: 5937272 (1999-08-01), Tang
patent: 5982345 (1999-11-01), Takayama et al.
patent: 6008588 (1999-12-01), Fujii
patent: 6057647 (2000-05-01), Kurosawa et al.
patent: 6114715 (2000-09-01), Hamada
patent: 6147451 (2000-11-01), Shibata et al.
patent: 6166489 (2000-12-01), Thompson et al.
patent: 6297516 (2001-10-01), Forrest et al.
patent: 6384529 (2002-05-01), Tang et al.
patent: 6400426 (2002-06-01), Yamazaki et al.
patent: 6522315 (2003-02-01), Ozawa et al.
patent: 6525466 (2003-02-01), Jabbour et al.
patent: 6538390 (2003-03-01), Fujita et al.
patent: 6541910 (2003-04-01), Uchida et al.
patent: 6545424 (2003-04-01), Ozawa
patent: 6608620 (2003-08-01), Suzuki et al.
patent: 6611108 (2003-08-01), Kimura
patent: 6657260 (2003-12-01), Yamazaki et al.
patent: 6685524 (2004-02-01), Moriyama et al.
patent: 6698077 (2004-03-01), Buchwalter et al.
patent: 6727008 (2004-04-01), Antoniadis et al.
patent: 6768482 (2004-07-01), Asano et al.
patent: 6809710 (2004-10-01), Prache et al.
patent: 6836068 (2004-12-01), Furugori et al.
patent: 6872973 (2005-03-01), Koyama et al.
patent: 6882102 (2005-04-01), Yamazaki
patent: 6909413 (2005-06-01), Nanno et al.
patent: 6965365 (2005-11-01), Nakamura
patent: 7030847 (2006-04-01), Kimura
patent: 7075610 (2006-07-01), Scalora et al.
patent: 7084848 (2006-08-01), Senda et al.
patent: 7113154 (2006-09-01), Inukai
patent: 7403179 (2008-07-01), Koyama et al.
patent: 7462372 (2008-12-01), Konuma et al.
patent: 7817116 (2010-10-01), Kimura
patent: 2002/0053884 (2002-05-01), Kimura
patent: 2002/0084993 (2002-07-01), Taneya et al.
patent: 2006/0192733 (2006-08-01), Kimura
patent: 2011/0090206 (2011-04-01), Kimura
patent: 1294375 (2001-05-01), None
patent: 0 895 219 (1999-02-01), None
patent: 0 942 407 (1999-09-01), None
patent: 1 094 436 (2001-04-01), None
patent: 03-205788 (1991-09-01), None
patent: 04-000772 (1992-01-01), None
patent: 04-349388 (1992-12-01), None
patent: 09-218664 (1997-08-01), None
patent: 2000-075836 (2000-03-01), None
patent: 2000-101136 (2000-04-01), None
patent: 2000-0075335 (2000-12-01), None
patent: 2001-0018261 (2001-03-01), None
patent: 2001-0057760 (2001-07-01), None
Tang et al., “Organic Electroluminescent Diodes,” Appl. Phys. Lett. (Applied Physics Letters), Sep. 21, 1987, vol. 51, No. 12, pp. 913-915.
Vanslyke et al., “Organic Electroluminescent Devices With Improved Stability,” Appl. Phys. Lett. (Applied Physics Letters), Oct. 7, 1996, vol. 69, No. 15, pp. 2160-2162.
“Stripe/On,” Merriam-Webster Online Dictionary http://www.m-w.com/cgi-bin/dictionary, Aug. 22, 2006, Merriam-Webster Online.
Search Report (Application No. 02025658.2) dated Jan. 29, 2007.
Office Action (Application No. 02152806.3) dated Dec. 22, 2006.
European Search Report (Application No. 10011692.0) Dated May 11, 2011.

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