Method of manufacturing a light emitting display panel and a light emitting display panel
View Patent ↗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.
1. 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.
2. The method of manufacturing a light emitting display panel according to claim 1 , wherein the EL layer is formed on the flexible substrate while the flexible substrate is attached to the rigid flat plate.
3. The method of manufacturing a light emitting display panel according to claim 1 , wherein the flexible base layer is attached to and removed from the rigid flat plate at least twice before the method is complete.
4. The method of manufacturing a light emitting display panel according to claim 1 , wherein the flexible base layer is attached to the rigid flat plate by at least one method selected from the group consisting of detachable sealing attachment, bond attachment, adhesive attachment, attachment by tool, and vacuum attachment.
5. The method of manufacturing a light emitting display panel according to claim 1 , wherein the rigid flat plate is a glass substrate.
6. The method of manufacturing a light emitting display panel according to claim 1 , wherein:
the laminated structure comprises an insulating layer that insulates the first electrode layer and the second electrode layer from each other; and
the insulating layer is formed in a predetermined pattern.