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US 9,871,228 B2Granted
Organic light emitting device comprising flexible substrate and method for preparing thereof
AssigneeLG Display Co., Ltd.
InventorsJung Hyoung Lee, Junrye Choi, Jihee Kim
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Abstract
The present application relates to an organic light emitting device including a flexible substrate, and a preparing method thereof, and the method includes: 1) forming a polyimide layer on a carrier substrate; 2) forming a plastic substrate on the carrier substrate and the polyimide layer; 3) forming an organic light emitting device on the plastic substrate; and 4) separating the carrier substrate.
Claims22
A method for preparing a flexible organic light emitting device, comprising:
- 1) forming and patterning a polyimide layer on a carrier substrate;
- 2) surface treating the carrier substrate and the polyimide layer;
- 3) forming a plastic substrate on a surface treated polyimide layer to have a wider area than that of the surface treated polyimide layer;
- 4) forming an organic light emitting device on the plastic substrate;
- and
- 5) separating the carrier substrate,
- wherein the polyimide layer is a photosensitive polyimide layer, and
- wherein the plastic substrate of step 3) is in contact with both a surface treated carrier substrate and the surface treated polyimide layer.
5 more elements
A flexible organic light emitting device manufactured by the method for preparing the organic light emitting device, comprising:
- 1) forming and patterning a polyimide layer on a carrier substrate;
- 2) surface treating the carrier substrate and the polyimide layer;
- 3) forming a plastic substrate on a surface treated polyimide layer to have a wider area than that of the surface treated polyimide layer;
- 4) forming an organic light emitting device on the plastic substrate;
- and
- 5) separating the carrier substrate,
- wherein the polyimide layer is a photosensitive polyimide layer, and
- wherein the plastic substrate of step 3) is in contact with both a surface treated carrier substrate and the surface treated polyimide layer.
5 more elements
Dependencies are inferred from the claim text.