Element substrate and light emitting device

Details Element substrate and light emitting device Element substrate and light emitting device

2006-10-16

2010-06-22

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

Reexamination Certificate

active

07742024

ABSTRACT:
No need of lowering off-current of a switching transistor, fewer luminance variations of a light emitting element between pixels due to characteristic variations of a driving transistor, and less risk of steps due to increase in the number of wirings. A video signal for light emission or non-emission of a pixel is input to a gate of a current controlling transistor operated in a linear region, which is connected in series with the driving transistor, through a switching transistor. Since a voltage Vds between a source and a drain of the current controlling transistor is small, small changes in a voltage Vgs between a gate and a source thereof do not affect a current flowing in a load. The current flowing in the light emitting element is determined by the driving transistor operated in a saturation region, and a fixed potential is input to the gate thereof during light emission.

REFERENCES:
patent: 5517207 (1996-05-01), Kawada et al.
patent: 5684365 (1997-11-01), Tang et al.
patent: 5949483 (1999-09-01), Fossum et al.
patent: 6166768 (2000-12-01), Fossum et al.
patent: 6207969 (2001-03-01), Yamazaki
patent: 6246384 (2001-06-01), Sano
patent: 6542222 (2003-04-01), Tsuji et al.
patent: 6661180 (2003-12-01), Koyama
patent: 6714178 (2004-03-01), Koyama et al.
patent: 6730966 (2004-05-01), Koyama
patent: 6753654 (2004-06-01), Koyama
patent: 6972743 (2005-12-01), Kim et al.
patent: 7061451 (2006-06-01), Kimura
patent: 7141934 (2006-11-01), Osame et al.
patent: 7173586 (2007-02-01), Osame et al.
patent: 7187350 (2007-03-01), Yoshida
patent: 7358942 (2008-04-01), Yamazaki et al.
patent: 2002/0005825 (2002-01-01), Lee et al.
patent: 2002/0101394 (2002-08-01), Anzai
patent: 2002/0196212 (2002-12-01), Nishitoba et al.
patent: 2003/0058687 (2003-03-01), Kimura
patent: 2003/0067424 (2003-04-01), Akimoto et al.
patent: 2003/0117352 (2003-06-01), Kimura
patent: 2003/0137503 (2003-07-01), Kimura et al.
patent: 2003/0222589 (2003-12-01), Osame et al.
patent: 2004/0041752 (2004-03-01), Kimura
patent: 2004/0189214 (2004-09-01), Osame et al.
patent: 2004/0207615 (2004-10-01), Yumoto
patent: 2004/0252565 (2004-12-01), Yamazaki et al.
patent: 2004/0263506 (2004-12-01), Koyama et al.
patent: 2005/0162354 (2005-07-01), Osame et al.
patent: 0 717 446 (1996-06-01), None
patent: 08-234683 (1996-09-01), None
patent: WO 2004021326 (2004-03-01), None

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