Electroluminescent device with improved light output

Details Electroluminescent device with improved light output Electroluminescent device with improved light output

2007-08-28

2007-08-28

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C428S917000

Reexamination Certificate

active

10518842

ABSTRACT:
The invention relates to an electroluminescent device comprising a substrate (1) and a laminated body composed of a first electrode (3), an electroluminescent layer (4) and a second electrode (5). The light output out of the electroluminescent device is increased by arranging a colloidal layer (2) between the substrate (1) and the laminated body. By using pigments in the colloidal layer (2), the emmission color of the electroluminescent device can be changed and the daylight contrast improved.

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patent: 62254394 (1987-11-01), None
patent: 2000019317 (2000-01-01), None
“Application of Polymer Light-Emitting Materials in Light-Emitting Diodes, Backlights and Displays”, by R.J. Visser, Philips Journal of Research, Vo. 51, 1998 pp. 467-477.

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