Apparatus for driving electroluminescence device and method of d

Details Apparatus for driving electroluminescence device and method of d Apparatus for driving electroluminescence device and method of d

1998-03-17

2000-05-09

Wu, Xiao

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 77, G09G 330

Patent

active

060610417

ABSTRACT:
An apparatus for driving an electroluminescence device by supplying an alternating current to the electroluminescence device, the apparatus having: a direct voltage source; a constant voltage control device for generating a direct current having a constant voltage on the basis of an output of the direct voltage source; a constant current control device for generating a direct current having a constant current on the basis of the output of the direct voltage source; a selecting device for selecting either one of the direct current having the constant voltage and the direct current having the constant current; and a converting device for converting the selected direct current to the alternating current to be supplied to the electroluminescence device.

REFERENCES:
patent: 4443741 (1984-04-01), Tanaka et al.
patent: 5519288 (1996-05-01), Tatsumi et al.
patent: 5550557 (1996-08-01), Kapoor et al.
patent: 5559402 (1996-09-01), Corrigan, III

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