Organic light emitting diode (OLED) structure and method of maki

Details Organic light emitting diode (OLED) structure and method of maki Organic light emitting diode (OLED) structure and method of maki

Filed on

1998-02-02

Date issued

1999-11-30

Examiner

Patel, Vip

Patent Class

Electric lamp and discharge devices

SubClass

With luminescent solid or liquid material

SubSubClass

Solid-state type

Other Related Categories

313506, H01J 162

Type

Patent

Status

active

Patent number

059948361

Description

ABSTRACT:
An organic light emitting diode (OLED) array structure, and corresponding method of making same are provided. Each OLED pixel includes a first electrode on a substrate, a second electrode on a substrate, and an organic emission layer disposed between the first and second electrodes so as to emit visible light when a suitable potential is applied thereto by the electrodes. In accordance with certain embodiments of this invention, a step covering or coverage layer is provided over step or edge areas of the first electrode in order to reduce the structures susceptibility to breakdown at pixel edges thereby improving yields.

REFERENCES:
patent: 5151629 (1992-09-01), Vanslyke
patent: 5495224 (1996-02-01), Adar
patent: 5670792 (1997-09-01), Utsugi et al.
patent: 5693956 (1997-12-01), Shi et al.
patent: 5703436 (1997-12-01), Forrest et al.
patent: 5707745 (1998-01-01), Forrest et al.

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