Organic EL devices and operation thereof

Details Organic EL devices and operation thereof Organic EL devices and operation thereof

1997-09-22

1999-12-14

O'Shea, Sandra

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313503, 313631, 3151693, H01J 162

Patent

active

06002206&

ABSTRACT:
An organic electroluminescent device, particularly for use as a display, is disclosed which is driven according to a pulsed mode of operation which allows much higher current densities to be injected into the device. This is achieved by selection of particular pulse durations and duty cycles, and by an improved geometry for the electroluminescent device in which the resistance of anode lines is reduced.

REFERENCES:
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patent: 5399936 (1995-03-01), Namiki et al.
patent: 5670792 (1997-09-01), Utsugi et al.
patent: 5707745 (1998-01-01), Forrest et al.
patent: 5798170 (1998-08-01), Zhang et al.
"Electroluminescence in Polymer Films", published in Nature, vol. 386, Mar. 13, 1997, p. 135.
"Nanosecond Transient Electroluminescence from Polymer Light-Emitting Diodes", published in Applied Physics Letters, 61(26), Dec. 28th, 1992, pp. 3092-3094.
"Semiconducting Polymers: A New Class of Solid-State Laser Materials", published in Science, vol. 273, Sep. 27th, 1996, pp. 1833-1836.
"Photophysics of Phenylenevinylene Polymers", published in Synthetic Metals 80(1996), pp. 41-58.

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