High contrast organic light emitting device with electron...

Details High contrast organic light emitting device with electron... High contrast organic light emitting device with electron...

2008-04-29

2008-04-29

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S506000, C428S690000, C428S917000

Reexamination Certificate

active

10888336

ABSTRACT:
A high contrast organic light-emitting device (OLED) includes a composite electron transport layer including a generally transparent electron transport layer and a light-absorbent electron transport layer formed of buckminsterfullerene. The light-absorbent electron transport layer absorbs environmental light and the OLED provides an undistorted display with high contrast. The light-absorbent electron transport layer may be disposed directly between the generally transparent electron transport layer which may be formed of Alq, and an LiF electron injection layer of a metallic cathode.

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