Active solid-state devices (e.g. – transistors – solid-state diode – Non-single crystal – or recrystallized – semiconductor... – Amorphous semiconductor material
Reexamination Certificate
2007-01-30
2007-01-30
Owens, Douglas W. (Department: 2818)
Active solid-state devices (e.g., transistors, solid-state diode
Non-single crystal, or recrystallized, semiconductor...
Amorphous semiconductor material
C345S092000, C345S102000, C315S169300, C315S169100, C257S057000, C257S066000, C257SE23010, C257SE31113
Reexamination Certificate
active
10983749
ABSTRACT:
By controlling the luminance of light emitting element not by means of a voltage to be impressed to the TFT but by means of controlling a current that flows to the TFT in a signal line drive circuit, the current that flows to the light emitting element is held to a desired value without depending on the characteristics of the TFT. Further, a voltage of inverted bias is impressed to the light emitting element every predetermined period. Since a multiplier effect is given by the two configurations described above, it is possible to prevent the luminance from deteriorating due to a deterioration of the organic luminescent layer, and further, it is possible to maintain the current that flows to the light emitting element to a desired value without depending on the characteristics of the TFT.
REFERENCES:
patent: 4523189 (1985-06-01), Takahara et al.
patent: 4951041 (1990-08-01), Inada et al.
patent: 5247190 (1993-09-01), Friend et al.
patent: 5399502 (1995-03-01), Friend et al.
patent: 5414443 (1995-05-01), Kanatani et al.
patent: 5552678 (1996-09-01), Tang et al.
patent: 5641991 (1997-06-01), Sakoh
patent: 5748160 (1998-05-01), Shieh et al.
patent: 5847516 (1998-12-01), Kishita et al.
patent: 5882761 (1999-03-01), Kawami et al.
patent: 5990629 (1999-11-01), Yamada et al.
patent: 6023259 (2000-02-01), Howard et al.
patent: 6064158 (2000-05-01), Kishita et al.
patent: 6087245 (2000-07-01), Yamazaki et al.
patent: 6091203 (2000-07-01), Kawashima et al.
patent: 6121943 (2000-09-01), Nishioka et al.
patent: 6151006 (2000-11-01), Yanagi et al.
patent: 6175345 (2001-01-01), Kuribayashi et al.
patent: 6243069 (2001-06-01), Ogawa et al.
patent: 6373454 (2002-04-01), Knapp et al.
patent: 6373455 (2002-04-01), Kuribayashi et al.
patent: 6380689 (2002-04-01), Okuda
patent: 6452341 (2002-09-01), Yamauchi et al.
patent: 6501227 (2002-12-01), Koyama
patent: 6501466 (2002-12-01), Yamagishi et al.
patent: 6525704 (2003-02-01), Kondo et al.
patent: 6529178 (2003-03-01), Kimura
patent: 6583581 (2003-06-01), Kaneko et al.
patent: 6583775 (2003-06-01), Sekiya et al.
patent: 6700330 (2004-03-01), Koyama
patent: 6738034 (2004-05-01), Kaneko et al.
patent: 6859193 (2005-02-01), Yumoto
patent: 6882113 (2005-04-01), Kaneko et al.
patent: 2001/0054991 (2001-12-01), Kimura et al.
patent: 2001/0055828 (2001-12-01), Kaneko et al.
patent: 2002/0000613 (2002-01-01), Ohtani et al.
patent: 2002/0089291 (2002-07-01), Kaneko et al.
patent: 2003/0117083 (2003-06-01), Koyama
patent: 2003/0214249 (2003-11-01), Kaneko et al.
patent: 2004/0196219 (2004-10-01), Kaneko et al.
patent: 2004/0207615 (2004-10-01), Yumoto
patent: 2005/0167691 (2005-08-01), Kaneko et al.
patent: 2005/0190177 (2005-09-01), Yumoto
patent: 2005/0200300 (2005-09-01), Yumoto
patent: 0 883 191 (1998-12-01), None
patent: 1 061 497 (2000-12-01), None
patent: 1 087 366 (2001-03-01), None
patent: 1 102 234 (2001-05-01), None
patent: 1 130 565 (2001-09-01), None
patent: 09-138659 (1997-05-01), None
patent: 10-92576 (1998-04-01), None
patent: 11-003048 (1999-01-01), None
patent: 2000-056847 (1999-09-01), None
patent: 11-282419 (1999-10-01), None
patent: 2000-268957 (2000-09-01), None
patent: 2000-347621 (2000-12-01), None
patent: 2001-060076 (2001-03-01), None
patent: 2001-109432 (2001-04-01), None
patent: 2001-147659 (2001-05-01), None
patent: 2001-159878 (2001-06-01), None
patent: 2002-091376 (2002-03-01), None
patent: 2002-207451 (2002-07-01), None
patent: WO 90/13148 (1990-11-01), None
patent: WO99-065011 (1999-12-01), None
patent: WO01-006484 (2001-01-01), None
Baldo et al.; “Highly Efficient Phosphorescent Emission From Organic Electroluminescent Devices”;Nature, vol. 395, pp. 151-154; Sep. 10, 1998.
Baldo et al.; “Very High-Efficiency Green Organic Light-Emitting Devices Based on Electrophorescence”;Applied Physics Letters, vol. 75, No. 1; pp. 4-6; Jul. 5, 1999.
Schenk et al.; “Polymers for Light Emitting Diodes”;EuroDisplay '99; The 19thInternational Display Research Conference Proceedings; pp. 33-37; Sep. 6-9, 1999.
Tsutsui et al.; “Electroluminescence in Organic Thin Films”;Photochemical Processes in Organized Molecular Systems, pp. 437-450; 1991.
Tsutsui et al.; “High Quantum Efficiency in Organic Light-Emitting Devices with Iridium-Complex as a Triplet Emissive Center”;Japan Journal of Applied Physics, vol. 38, Part 2, No. 12B; pp. L-1502-L1504; Dec. 15, 1999.
Zou et al.; “Improvement of Current-Voltage Characteristics in Organic Light Emitting Diodes by Application of Reversed-Bias Voltage”;Japan Journal of Applied Physics, vol. 37, Part 2, No. 11B; pp. L1406-L1408; Nov. 15, 1998.
Akiba Mai
Koyama Jun
Yamazaki Shunpei
Nguyen Dao H.
Owens Douglas W.
Semiconductor Energy Laboratory Co,. Ltd.
LandOfFree
Light emitting device, driving method of light emitting... 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, driving method of light emitting..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light emitting device, driving method of light emitting... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3759244