Method and device for driving an organic EL display device

Details Method and device for driving an organic EL display device Method and device for driving an organic EL display device

2006-12-26

2006-12-26

Vo, Tuyet Thi (Department: 2821)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S211000, C345S082000, C345S077000

Reexamination Certificate

active

07154494

ABSTRACT:
Although the driving voltage of an organic EL element is gradually reduced (gradually decreases) as an ambient temperature increases, a supply voltage VSEG, which is supplied to a data electrode driver, is controlled to so as to be kept at a higher value than the driving voltage of the organic EL element by about 6 V as a margin value for supply source in an intermediate temperature range (e.g., from 20 to 60° C.). In a high temperature range, the supply voltage VSEGis decreased, according to temperature rise, in a higher degree as the gradual decrease in the supply voltage VSEGin the intermediate temperature range.

REFERENCES:
patent: 6313821 (2001-11-01), Mizuno
patent: 2004/0061670 (2004-04-01), Muruyama et al.

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