Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2002-10-24
2008-11-25
Liang, Regina (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S082000
Reexamination Certificate
active
07456810
ABSTRACT:
In a light emitting device, luminance irregularities caused by fluctuation in threshold of TFTs for supplying a current to EL elements among pixels hinder the light emitting device from improving the image quality. A voltage equal to the threshold of a TFT110is held in capacitor means111in advance. When a video signal is inputted from a source signal line, the voltage held in the capacitor means is added to the signal, which is then applied to a gate electrode of the TFT110. Even when threshold is fluctuated among pixels, each threshold is held in the capacitor means111of each pixel, and therefore, influence of the threshold fluctuation can be removed. Since the threshold is stored in the capacitor means111alone and the voltage between two electrodes is not changed while a video signal is written, fluctuation in capacitance value has no influence.
REFERENCES:
patent: 3564135 (1971-02-01), Weimer
patent: 5095248 (1992-03-01), Sato
patent: 5359341 (1994-10-01), Hutchings
patent: 5581160 (1996-12-01), Fujita
patent: 5673058 (1997-09-01), Uragami et al.
patent: 5689205 (1997-11-01), Hughes et al.
patent: 5783952 (1998-07-01), Kazazian
patent: 6037719 (2000-03-01), Yap et al.
patent: 6091203 (2000-07-01), Kawashima et al.
patent: 6229506 (2001-05-01), Dawson et al.
patent: 6229508 (2001-05-01), Kane
patent: 6246180 (2001-06-01), Nishigaki
patent: 6278131 (2001-08-01), Yamazaki et al.
patent: 6348906 (2002-02-01), Dawson et al.
patent: 6362798 (2002-03-01), Kimura et al.
patent: 6380687 (2002-04-01), Yamazaki
patent: 6445371 (2002-09-01), Miyazawa et al.
patent: 6501466 (2002-12-01), Yamagishi et al.
patent: 6525704 (2003-02-01), Kondo et al.
patent: 6570338 (2003-05-01), Bae
patent: 6580408 (2003-06-01), Bae et al.
patent: 6750833 (2004-06-01), Kasai
patent: 6859193 (2005-02-01), Yumoto
patent: 6909242 (2005-06-01), Kimura
patent: 7193591 (2007-03-01), Yumoto
patent: 2001/0029070 (2001-10-01), Yamazaki et al.
patent: 2002/0005825 (2002-01-01), Lee et al.
patent: 2002/0070913 (2002-06-01), Kimura et al.
patent: 2003/0020413 (2003-01-01), Oomura
patent: 2003/0069658 (2003-04-01), Yamazaki
patent: 2003/0091871 (2003-05-01), Yamazaki et al.
patent: 2003/0117352 (2003-06-01), Kimura
patent: 2003/0169218 (2003-09-01), Kimura et al.
patent: 2003/0174009 (2003-09-01), Kimura et al.
patent: 2004/0207615 (2004-10-01), Yumoto
patent: 2005/0190177 (2005-09-01), Yumoto
patent: 1 003 150 (2000-05-01), None
patent: 1 020 920 (2000-07-01), None
patent: 1 063 630 (2000-12-01), None
patent: 1 103 946 (2001-05-01), None
patent: 2000-086968 (2000-03-01), None
patent: 2000-347159 (2000-12-01), None
patent: 2000-347621 (2000-12-01), None
patent: 2001-005426 (2001-01-01), None
patent: 2001-83924 (2001-03-01), None
patent: 2001-324958 (2001-11-01), None
patent: 2001-343933 (2001-12-01), None
patent: 2003-099000 (2003-04-01), None
patent: 2003-114644 (2003-04-01), None
patent: WO-1998/048403 (1998-10-01), None
patent: WO99-065011 (1999-12-01), None
patent: WO-2001/006484 (2001-01-01), None
Tsutsui et al., “Electroluminescence In Organic Thin Films,”Photochemical Processes in Organized Molecular Systems Proceedings of the Memorial Conference, pp. 437-450, Sep. 22, 1990.
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 electrophosphorescence,”Applied Physics Letters, vol. 75, No. 1, pp. 4-6, Jul. 5, 1999.
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, No. 12B, pp. L1502-L1504.
Kida et al., “LN-4: A 3.8 Inch Half-VGA Transflective Color TFT-LCD With Completely Integrated 6Bit RGB Parallel Interface Drivers,” Eurodisplay 2000: procedings of the 22ndIDRC (Interantional Display Research Conference). pp. 831-834.
Goh et al., “A New Poly-SI TFT Pixel Circuit Scheme for an Active-Matrix Organic Light Emitting Diode Displays,” Asia Display/ IDW '01, pp. 319-322.
Sekine et al., “3.2: Amplifier Compensations Method for a Poly-SI TFT LCLV With an Integrated Data-Driver,” Conference Record of the 1997 IDRC (International Display research Conference), pp. 45-48.
Dawson et al., “4.2: Design of an Improved Pixel for a Polysilicon Active-Matrix Organic LED Display,” SID Digest '98, SID International Symposium Digest of Technical Papers, pp. 11-14.
D. Pribat et al., “Matrix Addressing for Organic Electroluminescent Displays,” Thin Solid Films, 2001, pp. 25-30, vol. 383.
Tsutsui et al., “Electroluminescence In Organic Thin Films,”Photochemical Processes in Organized Molecular Systems Proceedings of the Memorial Conference, pp. 437-450, Sep. 22, 1990.
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 electrophosphorescence,”Applied Physics Letters, vol. 75, No. 1, pp. 4-6, Jul. 5, 1999.
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, No. 12B, pp. L1502-L1504. Dec. 15, 1999.
Fish & Richardson P.C.
Liang Regina
Semiconductor Energy Laboratory Co,. Ltd.
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