Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2007-04-03
2007-04-03
Patel, Nimeshkumar D. (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S506000, C313S505000, C313S509000, C428S917000, C428S690000
Reexamination Certificate
active
10158233
ABSTRACT:
An organic light emitting element which can employ non-sublimable (non-volatile) or insoluble materials while keeping the same level of light emission as prior art is provided. Dispersive particles (202a) of an insoluble organic material that is dispersed in a solvent (201) in which a soluble organic material (203a) is dissolved is applied to a substrate (200) that has an electrode. Then, the solvent (201) is vaporized by heat treatment to form a uniform film (203b) of the soluble organic material in which aggregations (clusters) of the insoluble organic material are scattered. Since the soluble organic material film (203b) is thoroughly uniform, defects such as breakdown can be avoided to make it a fully functional organic light emitting element.
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Murakami Masakazu
Seo Satoshi
Yamazaki Shunpei
Costellia Jeffrey L.
Macchiarolo Peter
Nixon & Peabody LLP
Patel Nimeshkumar D.
Semiconductor Energy Laboratory Co,. Ltd.
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