Light emitting element and process for producing the same

Details Light emitting element and process for producing the same Light emitting element and process for producing the same

2007-11-13

2007-11-13

McPherson, John A. (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making electrical device

C430S319000, C430S321000, C445S024000, C313S498000

Reexamination Certificate

active

11100317

ABSTRACT:
Disclosed are a light emitting element that, in the formation of a plurality of luminescent layers, can effectively suppress color mixing in each luminescent layer and loss in dissolution of the luminescent layer per se, and a process for producing the same. The light emitting element comprising a plurality of luminescent layers formed by photolithography is produced by a process which comprises: forming a first electrode on a surface of a base material; forming a first luminescent layer on the first electrode; conducting treatment for rendering the first luminescent layer in its exposed area insoluble in a coating liquid for second luminescent layer formation; forming the second luminescent layer on the first electrode; repeating the steps a plurality of times to form a plurality of luminescent layers on the first electrode; and forming a second electrode on the plurality of luminescent layers.

REFERENCES:
patent: 6288486 (2001-09-01), Tsuruoka et al.
patent: 2003/0068583 (2003-04-01), Okunaka et al.
patent: 2003/0143339 (2003-07-01), Kobayashi
patent: 2001-237075 (2001-08-01), None
patent: 2002-055221 (2002-02-01), None

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