Light emitting device and drive method thereof

Details Light emitting device and drive method thereof Light emitting device and drive method thereof

2006-04-04

2006-04-04

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

C345S077000, C345S079000, C345S214000

Reexamination Certificate

active

07023141

ABSTRACT:
The reliability of an EL element is enhanced while the increase of the electric power consumption is suppressed. It becomes possible that in a SES drive, the reverse bias is applied to the EL element driven at a constant electric current. Moreover, the application of the reverse bias is performed by varying only the counter electrode, and thus withstand voltage of TFT and the increase of the electric power consumption due to the increase of voltage of the gate signal line drive circuit, which becomes a problem when changing greatly the electric current supplying line, can be suppressed.

REFERENCES:
patent: 5552678 (1996-09-01), Tang et al.
patent: 6175345 (2001-01-01), Kuribayashi et al.
patent: 6373455 (2002-04-01), Kuribayashi et al.
patent: 2002/0042152 (2002-04-01), Yamazaki et al.
patent: 1 103 946 (2001-05-01), None
patent: 8-180972 (1996-07-01), None
patent: 2001-343933 (2001-12-01), None
English Abstract re Japanese Patent Application No. JP 8-180972 published Jul. 12, 1996.
English Abstract re Japanese Patent Application No. JP 2001-343933 published Dec. 14, 2001.

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