Method of sealing organo electro-luminescent display

• US 6,872,114 B2
• Filed: 01/20/2004
• Issued: 03/29/2005
• Est. Priority Date: 10/17/2001
• Status: Expired due to Term

• Current Assignee: InnoLux Corporation
• Original Assignee: Chi Mei Optoelectronics (InnoLux Corporation), Kyocera Corporation
• Inventors: Chung, Chia-Tin, Huang, Chen Wei, Huang, Hao Jung
• Primary Examiner(s): WILLIAMS, JOSEPH L
• Application Number:
  US10/760,862
• Publication Number:
  US 20040152390A1
• Time in Patent Office: 434 Days
• Field of Search: 445/24, 445/25, 445/50, 445/51, 313504-506
• US Class Current: 445/24
• CPC Class Codes: H10K 2102/3026 Top emission
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 59/8722 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 59/873 Encapsulations

Abstract

A top-emission organic electro-luminescent display (OLED) has a substrate with at least a anode layer, an organic fluorescent film, at least a cathode layer, a barrier layer and a protection layer. A transparent sealing structure is glued to the top of the substrate. Wherein, the transparent sealing structure has an adhesion layer glued to the protection layer, a plurality of organic resin layers formed on the adhesion layer, a plurality of inorganic barrier layers disposed between the organic resin layers, a flexible polymer film formed on the organic resin layer, and a hard coat formed on the flexible polymer film.

Claims

1. A method of sealing a top-emission organic electro-luminescent display (OLED), comprising steps of:

providing a substrate which has at least an anode layer, an organic fluorescent film, at least a cathode layer, a barrier layer and a protection layer;

adhering a transparent sealing structure which has a plurality of organic resin layers formed on a first side of a flexible polymer film, a plurality of inorganic barrier layers disposed between the organic resin layers;

providing a hard coat formed on a second side of the flexible polymer film; and

adhering the transparent sealing structure to the protection layer of the substrate by a first transparent adhesion layer after forming the transparent sealing structure.

2. The method according to claim 1, wherein the first transparent adhesion layer is formed at the organic resin layer of the transparent sealing structure.

3. The method according to claim 1, wherein the first transparent adhesion layer is formed on the protection layer of the substrate.

4. The method according to claim 1, wherein the transparent sealing structure is adhered to the protection layer of the substrate by a roll-press manner.

5. The method according to claim 1, wherein the transparent sealing structure comprises forming a second transparent adhesion layer between two of the inorganic barrier layers.

6. The method according to claim 1, wherein providing the hard coat of the sealing structure is selected from one of the group consisting of hardened coating, anti-reflective coating, and ¼

λ

polarizer.