Display device with controlled driving source

Details Display device with controlled driving source Display device with controlled driving source

2006-05-23

2006-05-23

Awad, Amr A. (Department: 2677)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S078000, C315S169300

Reexamination Certificate

active

07050023

ABSTRACT:
The upper limit VHof the driving voltage PVdd is set in such way that the brightness of an organic EL element is lower than the first standard brightness L1when the video signal Dm is at the black signal level (V0), in an EL display device with the driving source for driving the organic EL element. Also, the lower limit VLof the driving voltage PVdd is set in such way the brightness of the organic EL element is higher than the second standard brightness L2when the video signal Dm is at the white signal level (V1). The electroluminescent display device displays black and white with a proper contrast.

REFERENCES:
patent: 5903246 (1999-05-01), Dingwall
patent: 6204610 (2001-03-01), Komiya
patent: 6580409 (2003-06-01), Ito et al.
patent: 6738034 (2004-05-01), Kaneko et al.
patent: 6771243 (2004-08-01), Hirohata

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