US 7,404,751 B2 · Method of manufacturing a light emitting display panel and a light emitting display panel

Abstract

The present invention is a method of manufacturing a light emitting display panel, which includes a laminated structure formed by laminating at least a flexible base layer, a first electrode layer, an EL layer, a second electrode layer and a flexible sealing layer in that order. The flexible base layer is provisionally attached to a rigid flat plate, and thereafter supplied to a main manufacturing step of the light emitting display panel. According to the feature, no significant unevenness in the thicknesses of layers formed on or above the flexible base layer is generated. Therefore, a light emitting display panel whose light emitting strength is uniform can be produced.

Claims6

Dependent claims

A method of manufacturing a light emitting display panel, comprising:

laminating at least a flexible base layer, a first electrode layer, an EL layer, a second electrode layer and a flexible sealing layer in order;
wherein:
the flexible base layer is attached to a rigid flat plate during lamination of one or more of the first electrode layer, the EL layer, the second electrode layer and the flexible sealing layer to the flexible base layer;
the flexible base layer is removed from the rigid flat plate prior to completion of the method;
and
the flexible base layer comprises a laminate of a thin glass sheet and a preformed protective plastic sheet, and has sufficient flexibility to be freely rolled and/or curved.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/662,805Filed 16 Sep 2003

Priority

JP 2002-27061217 Sep 2002

Published

US 2004/0135503 A115 Jul 2004

Granted

29 Jul 2008

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H05B 33/04
Details: sealing arrangements , e.g. against humidity
H10K 59/873
Passivation; Containers; Encapsulations: encapsulations
H10K 77/10
Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80: substrates,…
H10K 59/1201
Active-matrix OLED [AMOLED] displays: manufacture or treatment

Method of manufacturing a light emitting display panel and a light emitting display panel

Life of this patent

Method of manufacturing a light emitting display panel and a light emitting display panel

Life of this patent

Abstract

Claims6