Luminescent device having drive-current controlled pixels and me

Details Luminescent device having drive-current controlled pixels and me Luminescent device having drive-current controlled pixels and me

1996-10-08

1999-03-23

Le, Hoanganh

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

3151693, 315366, 345 76, H01J 2970

Patent

active

058864741

ABSTRACT:
A luminescent device (for example an autoluminescent flat display and particularly an organic electroluminescent device or display using an organic thin film as an electroluminescent layer) having a plurality of luminescing units (pixels PX) each selectively made to luminesce by a current is provided with a control part (current control circuit part 40) for accurately controlling the brightness of the luminescing units by controlling the current flowing through each luminescing unit on the basis of a brightness signal from outside, which is preferably supplied as pre-programmed memory information. As a result, it is possible to realize distinct luminescing (image display) at all times even with a passive matrix type pixel structure.

REFERENCES:
patent: 4525653 (1985-06-01), Smith
patent: 5262698 (1993-11-01), Dunham
patent: 5578906 (1996-11-01), Smith
patent: 5581159 (1996-12-01), Lee et al.
patent: 5583528 (1996-12-01), Ebihara

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