SUBSTRATE AND DISPLAY DEVICE INCLUDING THE SAME

• US 20120146040A1
• Filed: 03/22/2011
• Published: 06/14/2012
• Est. Priority Date: 12/14/2010
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Mobile Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: LEE, Jung-Min, LEE, Choong-Ho
• Application Number:
  US13/069,284
• Publication Number:
  US 20120146040A1
• Time in Patent Office: Days
• US Class Current: 257/72
• CPC Class Codes: H10K 50/87 Arrangements for heating or cooling
• CPC Class Codes: H10K 59/873 Encapsulations
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/549 Organic PV cells
• CPC Class Codes: Y10T 428/26 Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
• CPC Class Codes: Y10T 428/264 Up to 3 mils
• CPC Class Codes: Y10T 428/31529 Next to metal
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane
• CPC Class Codes: Y10T 428/31678 Of metal
• CPC Class Codes: Y10T 428/31681 Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]

Abstract

Disclosed is a substrate for a display device that includes a composite material layer including an inorganic fiber material and a resin, and a metal layer disposed on the composite material layer, and a display device including the substrate.

Claims

1. A substrate for a display device, comprising:

a composite material layer comprising an inorganic fiber material and a resin, and

a metal layer disposed on the composite material layer.

2. The substrate of claim 1, wherein the inorganic fiber material comprises a carbon fiber, a Kevlar fiber, or a combination thereof.

3. The substrate of claim 1, wherein the resin has a thermal expansion ratio of about 20*10⁻

7 [1/°

C.] to about 50*10<sup>−

7</sup> [1/°

C.] at about 200 to about 400°

C.

4. The substrate of claim 1, wherein the resin comprises a polyimide resin, a bismaleimide-based resin, a phenol resin, an epoxy resin, a novolac resin, a derivative thereof, or a combination thereof.

5. The substrate of claim 1, wherein the composite material layer has a fracture toughness of at least about 12 MPa·

m^1/2.

6. The substrate of claim 1, wherein the metal layer comprises aluminum (Al), copper (Cu), nickel (Ni), an alloy thereof, or a combination thereof.

7. The substrate of claim 1, wherein the metal layer has a thickness of about 10 μ

m to about 1000 μ

m.

8. The substrate of claim 1, wherein the metal layer has a thickness of about 10 μ

m to about 50 μ

m.

9. The substrate of claim 1, wherein the substrate further comprises an insulation layer disposed on the metal layer.

10. The substrate of claim 9, wherein the insulation layer comprises silicon oxide, silicon nitride, or a combination thereof.

11. A display device comprising

a substrate,

a thin film transistor disposed on the substrate, and

a pixel electrode electrically connected to the thin film transistor,

wherein the substrate comprises:

a composite material layer comprising an inorganic fiber material and a resin, and

a metal layer disposed on the composite material layer.

12. The display device of claim 11, wherein the thin film transistor comprises polycrystalline silicon.

13. The display device of claim 11, further comprising a common electrode facing the pixel electrode, and

an emission layer disposed between the pixel electrode and the common electrode,

wherein the common electrode is a transparent electrode.

14. The display device of claim 11, wherein the inorganic fiber material comprises a carbon fiber, a Kevlar fiber, or a combination thereof.

15. The display device of claim 11, wherein the resin has a thermal expansion ratio of about 20*10⁻

7 [1/°

C.] to about 50*10<sup>−

7</sup> [1/°

C.] at about 200 to about 400°

C.

16. The display device of claim 11, wherein the resin comprises a polyimide resin, a bismaleimide-based resin, a phenol resin, an epoxy resin, a novolac resin, a derivative thereof, or a combination thereof.

17. The display device of claim 11, wherein the metal layer comprises aluminum (Al), copper (Cu), nickel (Ni), an alloy thereof, or a combination thereof.

18. The display device of claim 11, wherein the substrate further comprises an insulation layer disposed on the metal layer.

19. The display device of claim 18, wherein the insulation layer comprises silicon oxide, silicon nitride, or a combination thereof.