Flexible organic light-emitting display apparatus and method of manufacturing the same

• US 9,312,512 B2
• Filed: 05/12/2014
• Issued: 04/12/2016
• Est. Priority Date: 01/02/2014
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kang, Dong-Hun, Kwon, Oh-June, Choi, Young-Seo, Han, Dong-Won
• Primary Examiner(s): Nguyen, Cuong Q
• Assistant Examiner(s): Kim, Tong-Ho
• Application Number:
  US14/275,829
• Publication Number:
  US 20150188079A1
• Time in Patent Office: 701 Days
• Field of Search: 257/40, 438/28, 313/504, 445/58
• US Class Current: 1/1
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/846 comprising getter material or desiccants
• CPC Class Codes: H10K 77/111 Flexible substrates

Abstract

A flexible organic light-emitting display apparatus includes a flexible substrate, a barrier layer on the flexible substrate, a display portion on the barrier layer, an encapsulation layer covering the display portion, and a porous layer between the flexible substrate and the display portion.

Claims

1. A flexible organic light-emitting display apparatus comprising:

a flexible substrate;

a barrier layer on the flexible substrate;

a display portion on the barrier layer;

an encapsulation layer covering the display portion; and

a porous layer comprising a LiF material between the flexible substrate and the display portion,

wherein the porous layer comprising the LiF material is between the barrier layer and the display portion.

2. The flexible organic light-emitting display apparatus of claim 1, wherein the flexible substrate comprises a plurality of flexible substrates and the barrier layer comprises a plurality of barrier layers, the plurality of flexible substrates and the plurality of barrier layers being alternately stacked, and

wherein the porous layer is between a first flexible substrate of the plurality of flexible substrates and a first barrier layer of the plurality of barrier layers, the first flexible substrate being the closest to the display portion from among the plurality of flexible substrates and the first barrier layer being the closest to the display portion from among the plurality of barrier layers.

3. The flexible organic light-emitting display apparatus of claim 1, wherein the flexible substrate comprises a plurality of flexible substrates and the barrier layer comprises a plurality of barrier layers, the plurality of flexible substrates and the plurality of barrier layers being alternately stacked, and

wherein the porous layer is between a first barrier layer closest to the display portion from among the plurality of barrier layers and the display portion.

4. The flexible organic light-emitting display apparatus of claim 1, further comprising an AlOx layer between the flexible substrate and the display portion.

5. A method of manufacturing a flexible organic light-emitting display apparatus, the method comprising:

forming a flexible substrate on a carrier substrate;

forming a barrier layer on the flexible substrate;

forming a display portion on the barrier layer;

covering the display portion with an encapsulation layer; and

forming a porous layer comprising a LiF material between the flexible substrate and the display portion,

wherein the forming of the porous layer comprises forming the porous layer comprising the LiF material between the barrier layer and the display portion.

6. The method of claim 5, wherein the flexible substrate comprises a plurality of flexible substrates and the barrier layer comprises a plurality of barrier layers, the plurality of flexible substrate and the plurality of barrier layers being alternately stacked, and

wherein the porous layer is formed between a first flexible substrate of the plurality of flexible substrates and a first barrier layer of the plurality of barrier layers, the first flexible substrate being closest to the display portion from among the plurality of flexible substrates and the first barrier layer being closest to the display portion from among the plurality of barrier layers.

7. The method of claim 5, wherein the flexible substrate comprises a plurality of flexible substrates and the barrier layer comprises a plurality of barrier layers, the plurality of flexible substrates and the plurality of barrier layers being alternately stacked, and

wherein the porous layer is formed between a first barrier layer closest to the display portion from among the plurality of barrier layers and the display portion.

8. The method of claim 5, further comprising forming an AlOx layer between the flexible substrate and the display portion.