Display device

Details Display device Display device

2007-11-20

2007-11-20

Lee, Wilson (Department: 2163)

Computer graphics processing and selective visual display system

Plural physical display element control system

Segmented display elements

C345S092000, C315S169300

Reexamination Certificate

active

10347241

ABSTRACT:
The image quality of a display device using a bottom gate TFT is improved. In particular, fluctuation in luminance is controlled and the frequency characteristic of a driver circuit is compensated by suppressing a change in amount of current flowing through an EL element which is caused by a change in surrounding temperature while the device is in use. A monitoring EL element is provided in addition to a pixel portion EL element. The monitoring EL element constitutes a temperature compensation circuit together with a buffer amplifier and the like. A current is supplied to the pixel portion EL element through the temperature compensation circuit. This makes it possible to keep the amount of current flowing through the pixel portion EL element constant against a change in temperature, and to control the fluctuation in luminance. An input signal is subjected to time base expansion to perform sampling with accuracy.

REFERENCES:
patent: 4308556 (1981-12-01), Osaka
patent: 5247190 (1993-09-01), Friend et al.
patent: 5399502 (1995-03-01), Friend et al.
patent: 5594463 (1997-01-01), Sakamoto
patent: 5597223 (1997-01-01), Watanabe et al.
patent: 5745085 (1998-04-01), Tomio et al.
patent: 5844535 (1998-12-01), Itoh et al.
patent: 5882761 (1999-03-01), Kawami et al.
patent: 5886474 (1999-03-01), Asai et al.
patent: 5893730 (1999-04-01), Yamazaki et al.
patent: 5990629 (1999-11-01), Yamada et al.
patent: 5999242 (1999-12-01), Walton et al.
patent: 6002385 (1999-12-01), Silverbrook
patent: 6005350 (1999-12-01), Hachiya et al.
patent: 6049321 (2000-04-01), Sasaki
patent: 6054976 (2000-04-01), Kubota et al.
patent: 6069676 (2000-05-01), Yuyama
patent: 6072448 (2000-06-01), Kojima et al.
patent: 6097302 (2000-08-01), Zinzell
patent: 6147451 (2000-11-01), Shibata et al.
patent: 6219113 (2001-04-01), Takahara
patent: 6320325 (2001-11-01), Cok et al.
patent: 6335713 (2002-01-01), Imai
patent: 6373459 (2002-04-01), Jeong
patent: 6376994 (2002-04-01), Ochi et al.
patent: 6380558 (2002-04-01), Yamazaki et al.
patent: 6392617 (2002-05-01), Gleason
patent: 6396468 (2002-05-01), Matsushima et al.
patent: 6396508 (2002-05-01), Noecker
patent: 6404137 (2002-06-01), Shodo
patent: 6411306 (2002-06-01), Miller et al.
patent: 6414661 (2002-07-01), Shen et al.
patent: 6417824 (2002-07-01), Tokunaga et al.
patent: 6424326 (2002-07-01), Yamazaki et al.
patent: 6452576 (2002-09-01), Van Velzen et al.
patent: 6486862 (2002-11-01), Jacobsen et al.
patent: 6496218 (2002-12-01), Takigawa et al.
patent: 6518941 (2003-02-01), Kimura
patent: 6518962 (2003-02-01), Kimura et al.
patent: 6525704 (2003-02-01), Kondo et al.
patent: 6528951 (2003-03-01), Yamazaki et al.
patent: 6534925 (2003-03-01), Kawashima
patent: 6552736 (2003-04-01), Honda et al.
patent: 6677936 (2004-01-01), Jacobsen et al.
patent: 6816144 (2004-11-01), Tsuchi
patent: 2001/0017618 (2001-08-01), Azami
patent: 2001/0026257 (2001-10-01), Kimura
patent: 2001/0033252 (2001-10-01), Yamazaki et al.
patent: 2002/0053884 (2002-05-01), Kimura
patent: 2002/0145602 (2002-10-01), Matsueda
patent: 2002/0154151 (2002-10-01), Koyama
patent: 2002/0180672 (2002-12-01), Yamazaki et al.
patent: 2002/0180721 (2002-12-01), Kimura et al.
patent: 2003/0063081 (2003-04-01), Kimura et al.
patent: 2003/0132716 (2003-07-01), Yamazaki et al.
patent: 2005/0012731 (2005-01-01), Yamazaki et al.
patent: 2005/0017963 (2005-01-01), Yamazaki et al.
patent: 2005/0017964 (2005-01-01), Yamazaki et al.
patent: 1318818 (2001-10-01), None
patent: 0 923 067 (1999-06-01), None
patent: 01-92576 (1989-04-01), None
patent: 10-092576 (1989-04-01), None
patent: 05-094151 (1993-04-01), None
patent: 07-036410 (1995-02-01), None
patent: 09-148066 (1997-06-01), None
patent: 10-092576 (1998-04-01), None
patent: 10-214060 (1998-08-01), None
patent: 10-232649 (1998-09-01), None
patent: 11-272223 (1999-10-01), None
patent: 11-273856 (1999-10-01), None
patent: 2001-109433 (2001-04-01), None
patent: 250560 (1995-07-01), None
patent: WO90-13148 (1990-11-01), None
patent: WO90/13148 (1990-11-01), None
patent: WO98-40871 (1998-09-01), None
patent: WO01-27910 (2001-04-01), None
Ronald J. Tocci. Fundamentals of Electronic Devices 2nd edition in 1975. Charles E. Merrill Publishing Co. pp. 228-229.
H. Shenk et al.; “Polymers for Light-Emitting Diodes”;Euro Display Proceedings; pp. 33-37; 1999.
Schenk et al., “Polymers for Light Emitting Diodes”, EuroDisplay '99, The 19thInternational Display Research Conference, pp. 33-37, Berlin, Germany, Sep. 6, 1999.
Mizukami et al., “6-Bit Digital VGA OLED,”SID'00 Digest, pp. 912-915, 2000.
Dawson et al., “Design of an Improved Pixel for a Polysilicon Active-Matrix Organic LED Display,”SID'98 Digest, pp. 11-14, 1998.

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