Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2005-06-14
2005-06-14
Patel, Vip (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S504000, C313S509000
Reexamination Certificate
active
06906458
ABSTRACT:
The present invention provides reduced production cost in a method for manufacturing an organic EL device including a step of forming a light-emitting layer having a predetermined pattern ink-jet method. The method achieves this objective by not forming a bank which surrounds an area in a substrate surface other than an area at which a light-emitting layer is formed. A solution-repellent treatment is performed so that a droplet of a liquid containing a light-emitting material has a contact angle of 15° to 90° with respect to the substrate surface immediately before formation of the light-emitting layer. Accordingly, a fluorine containing layer (a layer composed of a material containing fluorine) is formed. Between a step of forming the light-emitting layer and a step of forming a cathode, a step of forming a hole blocking layer over the entire surface of the substrate is performed.
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Oliff & Berridg,e PLC
Patel Vip
Seiko Epson Corporation
Zimmerman Glenn
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