Organic electroluminescent device driving method, organic electr

Details Organic electroluminescent device driving method, organic electr Organic electroluminescent device driving method, organic electr

1997-11-13

1999-12-28

Philogene, Haissa

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

3151691, 313 498, 313504, G09G 310

Patent

active

060085886

ABSTRACT:
In causing an organic electroluminescent device to emit light upon exerting a voltage between a hole injection electrode and an electron injection electrode in the organic electroluminescent device, the frequency of electricity supplied to the organic electroluminescent device is modulated, to adjust the luminance of the light emitted from the organic electroluminescent device. In an organic electroluminescent apparatus and a display device in which the organic electroluminescent device is provided, there is provided frequency modulation means for modulating the frequency of electricity and supplying electricity to the organic electroluminescent device.

REFERENCES:
patent: 5216331 (1993-06-01), Hosokawa et al.
patent: 5456988 (1995-10-01), Sano et al.
patent: 5684365 (1997-11-01), Tang et al.
patent: 5693428 (1997-12-01), Fujii et al.
American Institute of Physics, Aug. 5, 1996 "Three-Layered Multicolor Organic Electroluminescent Device", Yoshida, M., et al.

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