Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Reexamination Certificate
2006-12-12
2006-12-12
Philogene, Haissa (Department: 2828)
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
C345S045000, C345S076000, C345S092000, C257SE29279, C257SE27116
Reexamination Certificate
active
07148630
ABSTRACT:
There is provided an active matrix EL display device that can display a clear multi gray-scale color display to reduce the shift in the potential caused by the potential drop due to the wiring resistance of a power source supply line, in order to decrease the unevenness in a display region. A plurality of drawing out ports of the power source supply line are arranged. Further, in the wiring resistance between the external input terminal and the pixel portion power source supply line, potential compensation is performed by supplying potential to the power source supply line by a feedback amplifier. Further, in addition to above structure, the power source supply line may be arranged in a matrix.
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Kimura Hajime
Koyama Jun
Cook Alex McFarron Manzo Cummings & Mehler, Ltd.
Philogene Haissa
Semiconductor Energy Laboratory Co,. Ltd.
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