Organic EL element and method of forming the same

Details Organic EL element and method of forming the same Organic EL element and method of forming the same

2007-11-27

2007-11-27

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S504000, C445S023000

Reexamination Certificate

active

11012237

ABSTRACT:
An organic EL element includes a plurality of light-emitting units which exhibit organic EL luminescence and at least two different luminous colors and are connected in series; and a light-emitting surface formed by overlapping partly or wholly light-emitting surfaces of the light-emitting units. The plurality of light-emitting units includes light-emitting units which exhibit one color and are formed in multiple stages. A desired mixed color is obtained from the light-emitting surface by combining the different luminous colors.

REFERENCES:
patent: 5917280 (1999-06-01), Burrows et al.
patent: 6936961 (2005-08-01), Liao et al.
patent: 2003-45676 (2003-02-01), None
patent: 2003-272860 (2003-09-01), None
Dai 49 kai oyobutsurigaku kanren rengo koenkai yokoshu, Mar. 27, 2002; p. 1308.
Dai 63 kai oyobutsurigakkai gakujutsu koenkai yokoshu, Sep. 24, 2002; p. 1165.

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