Filling film and method of manufacturing organic light-emitting display apparatus by using the same

• US 9,825,227 B2
• Filed: 08/23/2013
• Issued: 11/21/2017
• Est. Priority Date: 05/22/2013
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kim, Jeong-Su
• Primary Examiner(s): Chen, Vivian
• Application Number:
  US13/974,802
• Publication Number:
  US 20140345796A1
• Time in Patent Office: 1,551 Days
• Field of Search: None
• CPC Class Codes: B29C 65/00 Joining or sealing of preformed parts , e.g. welding of plastics materials; Apparatus therefor general aspects of processes or apparatus for joining preformed parts B29C66/00; using porous material formed by internal pressure generated therein for joining preformed parts B29C44/1228, B29C44/326
• CPC Class Codes: B29C 65/48 using adhesives , i.e. using supplementary joining material; solvent bonding
• CPC Class Codes: B29C 65/50 using adhesive tape , e.g. thermoplastic tape; using threads or the like B29C65/3444 takes precedence
• CPC Class Codes: B29C 65/5007 characterised by the structure of said adhesive tape, threads or the like
• CPC Class Codes: B29C 65/5057 positioned between the surfaces to be joined B29C65/5035 takes precedence
• CPC Class Codes: B29C 66/40 General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
• CPC Class Codes: B29C 66/41 Joining substantially flat articles B29C66/47 and subgroups take precedence; Making flat seams in tubular or hollow articles B29C66/51 and subgroups take precedence
• CPC Class Codes: B29C 66/45 Joining of substantially the whole surface of the articles methods or apparatus for laminating B32B37/00
• CPC Class Codes: B29C 66/47 Joining single elements to sheets, plates or other substantially flat surfaces B29C66/5326 takes precedence
• CPC Class Codes: B29C 66/472 said single elements being substantially flat
• CPC Class Codes: B32B 2250/04 4 layers
• CPC Class Codes: B32B 2307/21 Anti-static
• CPC Class Codes: B32B 2307/748 Releasability
• CPC Class Codes: B32B 2323/00 Polyalkenes
• CPC Class Codes: B32B 2323/10 Polypropylene
• CPC Class Codes: B32B 2327/18 PTFE, i.e. polytetrafluoroethylene
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2457/20 Displays, e.g. liquid crystal displays, plasma displays
• CPC Class Codes: B32B 27/32 comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: B32B 27/322 comprising halogenated polyolefins, e.g. PTFE
• CPC Class Codes: B32B 27/36 : comprising polyesters
• CPC Class Codes: B32B 7/04 : Interconnection of layers
• CPC Class Codes: B32B 7/06 : permitting easy separation
• CPC Class Codes: B32B 7/12 : using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: C09J 2423/005 : in the release coating
• CPC Class Codes: C09J 2423/105 : in the release coating
• CPC Class Codes: C09J 2427/005 : in the release coating
• CPC Class Codes: C09J 2467/005 : in the release coating
• CPC Class Codes: C09J 7/20 : characterised by their carriers
• CPC Class Codes: C09J 7/201 : characterised by the release coating composition on the carrier layer
• CPC Class Codes: C09J 7/21 : Paper; Textile fabrics
• CPC Class Codes: C09J 7/22 : Plastics; Metallised plastics
• CPC Class Codes: C09J 7/30 : characterised by the adhesive composition
• CPC Class Codes: C09J 7/40 : characterised by release liners
• CPC Class Codes: C09J 7/401 : characterised by the release coating composition
• CPC Class Codes: C09J 7/403 : characterised by the structure of the release feature
• CPC Class Codes: H10K 50/8426 : Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 59/8722 : Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 71/00 : Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 71/50 : Forming devices by joining two substrates together, e.g. lamination techniques
• CPC Class Codes: Y10T 428/14 : Layer or component removable to expose adhesive
• CPC Class Codes: Y10T 428/1424 : Halogen containing compound
• CPC Class Codes: Y10T 428/1429 : Fluorine
• CPC Class Codes: Y10T 428/1452 : Polymer derived only from ethylenically unsaturated monomer
• CPC Class Codes: Y10T 428/2495 : Thickness [relative or absolute]
• CPC Class Codes: Y10T 428/266 : of base or substrate
• CPC Class Codes: Y10T 428/31504 : Composite [nonstructural laminate]
• CPC Class Codes: Y10T 428/3154 : Of fluorinated addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31544 : Addition polymer is perhalogenated
• CPC Class Codes: Y10T 428/31786 : Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31938 : Polymer of monoethylenically unsaturated hydrocarbon

Abstract

Provided are a filling film and a method of manufacturing an organic light-emitting display apparatus by using the filling film. The filling film includes a filling material, a first releasing film attached to a surface of the filling film, a second releasing film attached to another surface of the filling film, and a supporting layer attached to the second releasing film. The bonding force between the second releasing film and the supporting layer is greater than the bonding force between the filling material and the second releasing film.

Claims

1. A filling film, comprising:

a filling material having a thickness of 10 μ

m to 30 μ

m;

a first releasing film attached to a first surface of the filling material and having a thickness of 50 μ

m to 100 μ

m;

a second releasing film attached to a second surface of the filling material and having a thickness of 20 μ

m to 50 μ

m; and

a supporting layer attached to the second releasing film and having a thickness of 50 μ

m to 100 μ

m,

wherein the first releasing film comprises at least one of a polymethylpentene film, a polyethylene terephthalate film, a polytetrafluoroethylene (PTFE) film, and a polypropylene film, and the second releasing film comprises at least one of a polymethylpentene film, a polyethylene terephthalate film, a PTFE film, and a polypropylene film,

wherein a thickness of the first releasing film is greater than a thickness of the second releasing film, a bonding force between the first releasing film and the filling material is greater than a bonding force between the second releasing film and the filling material, and

wherein a bonding force between the second releasing film and the supporting layer is greater than a bonding force between the filling material and the second releasing film such that the supporting layer is separated from the filing material together with the second releasing film.

2. The filling film of claim 1, wherein the supporting layer comprises polyethylene terephthalate.

3. The filling film of claim 1, wherein an outer surface of the supporting layer opposite the second releasing film is coated with an anti-static agent.

4. The filling film of claim 1, wherein:

the first releasing film is 100 μ

m thick;

the filling material is 20 μ

m thick;

the second releasing film is 25 μ

m thick; and

the supporting layer is 100 μ

m thick.

5. A filling film, comprising:

a first releasing film having a first thickness of 50 μ

m to 100 μ

m;

a filling material disposed on the first releasing film and having a thickness of 10 μ

m to 30 μ

m;

a second releasing film disposed on the filling material and having a second thickness of 20 μ

m to 50 μ

m, the second thickness being less than the first thickness; and

a supporting layer disposed on the second releasing film, the supporting layer comprising polyethylene terephthalate and having a third thickness of 50 μ

m to 100 μ

m, the third thickness being greater than the second thickness,

wherein a bonding force between the first releasing film and the filling material is greater than a bonding force between the second releasing film and the filling material,

wherein a bonding force between the second releasing film and the supporting layer is greater than a bonding force between the filing material and the second releasing film such that the supporting layer is separated from the filing material together with the second releasing film, and

wherein the first releasing film comprises at least one of a polymethylpentene film, a polyethylene terephthalate film, a polytetrafluoroethylene (PTFE) film, and a polypropylene film, and the second releasing film comprises at least one of a polymethylpentene film, a polyethylene terephthalate film, a PTFE film, and a polypropylene film.

6. The filling film of claim 5, wherein:

an outer surface of the supporting layer opposite the second releasing film is coated with an anti-static agent, and

the first thickness and the third thickness both equal 100 μ

m.

7. The filling film of claim 5, wherein:

the first releasing film is 100 μ

m thick;

the filling material is 20 μ

m thick;

the second releasing film is 25 μ

m thick; and

the supporting layer is 100 μ

m thick.