Multicolor luminescent device

Details Multicolor luminescent device Multicolor luminescent device

1997-05-15

1999-02-09

Patel, Vip

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313461, 313473, H01J 162

Patent

active

058699295

ABSTRACT:
A multicolor luminescent device comprising a color conversion material in which a plurality of shielding layers and a plurality of different color conversion layers are separately and repeatedly assembled on the same flat, alternating with each other, and an organic EL emitting material including a plurality of organic EL elements separately assembled on the same flat at each position corresponding to the plurality of color conversion layers, the color conversion material and the organic EL emitting material being disposed so as to sandwich a transmittable medium between them, characterized in that the distance (d.sub.1) between the color conversion material and the organic EL emitting material and the width (d.sub.2) of the shielding layer satisfy the equation, d.sub.2 .gtoreq.d.sub.1. This multicolor luminescent device has excellent characteristics in the angle of view, is capable of inhibiting the occurrence of color drift, and has excellent visibility and practical use

REFERENCES:
patent: 5661371 (1997-08-01), Salerno et al.

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