Emissive display using organic light emitting diodes

Details Emissive display using organic light emitting diodes Emissive display using organic light emitting diodes

1998-05-08

1999-07-06

Tran, Minh Loan

Active solid-state devices (e.g., transistors, solid-state diode

Organic semiconductor material

257 98, 257103, 313509, H01L 3524, H01L 3300

Patent

active

059200804

ABSTRACT:
An organic light emitting device ("OLED") for a color video display. The OLED is a layered structure formed on a substrate. A layer of light emitting organic material is sandwiched between two conductive layers and placed on the substrate. Overlying the conductors and organic layer is a transparent cover layer. The OLED of the present invention includes an innovative microcavity enhancing structure, which restricts light emission in directions parallel to the substrate and provides increased light output toward the viewer.

REFERENCES:
patent: 5189405 (1993-02-01), Yamashita et al.
patent: 5482896 (1996-01-01), Tang
patent: 5530269 (1996-06-01), Tang
patent: 5619045 (1997-04-01), Konuma et al.
patent: 5641974 (1997-06-01), den Boer et al.

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