Display device and organic light emitting diode display

Patent metadata

Field	Value
Publication number	US-9281494-B2
Application number	US-201113064721-A
Country	US
Kind code	B2
Filing date	Apr 11, 2011
Priority date	Jul 29, 2010
Publication date	Mar 8, 2016
Grant date	Mar 8, 2016

Abstract

A display device includes: a display substrate; a display unit formed on the display substrate and a sealing substrate affixed to the display substrate by an adhering layer that surrounds the display unit. The sealing substrate includes a composite member including a resin and a plurality of carbon fibers and an insulating member attached to the composite member. The insulating member includes a through hole. A metal film is disposed at one side of the sealing substrate, facing the display substrate; and a conductive connection portion contact the metal film through the through hole.

First claim

What is claimed is:

1. A display device, comprising:
a display substrate;
a display unit disposed on the display substrate;
a sealing substrate affixed to the display substrate by an adhering layer located outside an outer periphery of the display unit, the sealing substrate located outside of a display area of the display substrate, the sealing substrate including a composite member including a resin and a plurality of carbon fibers and an insulating member affixed to the composite member, the insulating member including a plurality of first through holes through the insulating member;
a metal film disposed at one side of the sealing substrate, facing the display substrate; and
a conductive connection portion contacting the metal film through a plurality of second through holes through the sealing substrate;
wherein the insulating member is affixed to the composite member at a peripherally outward side of at least three peripheral edges of the composite member, and
wherein the adhering layer includes a first non-conductive adhering layer located outside the outer periphery of the display unit, a second non-conductive adhering layer located peripherally outward from the first non-conductive adhering layer, and a conductive adhering layer between the first non-conductive adhering layer and the second non-conductive adhering layer.

2. The display device as claimed in claim 1 , wherein the carbon fibers cross each other in the resin.

3. The display device as claimed in claim 1 , wherein the composite member includes a plurality of layers, each of the plurality of layers including a resin and a plurality of carbon fibers, wherein a plurality of carbon fibers arranged in at least one of the plurality of layers and a plurality of carbon fibers arranged in at least another layer among the plurality of layers cross each other.

4. The display device as claimed in claim 1 , further comprising:
a first conductive portion extending between inner and outer sides of the insulating member through the plurality of first through holes and receiving a first electric signal; and
a second conductive portion extending between inner and outer sides of the composite member through the plurality of second through holes and receiving a second electric signal.

5. The display device as claimed in claim 1 , wherein the insulating member is affixed to the composite member at a peripherally outward side of all peripheral edges of the composite member.

6. The display device as claimed in claim 5 , further comprising:
a first conductive portion extending between inner and outer sides of the insulating member through the plurality of first through holes and receiving a first electric signal; and
a second conductive portion extending between an inner side of the insulating member, an inner side of the composite member, and an outer side of the insulating member through the plurality of second through holes and receiving a second electric signal.

7. The display device as claimed in claim 1 , wherein the composite member includes a protrusion at a side surface that faces the insulating member, and the insulating member includes a groove receiving the protrusion.

8. The display device as claimed in claim 1 , wherein the composite member includes a plurality of protruding portions spaced apart from each other at a side surface facing the insulating member, and the insulating member includes a plurality of recess portions receiving the protruding portions.

9. The display device as claimed in claim 1 , wherein the insulating member further includes an insulating plate covering an external surface of the composite member.

10. The display device of claim 1 , wherein the insulating member further includes a protection portion that protectively covers the adhering layer and a side surface of the display substrate.

11. The display device as claimed in claim 1 , wherein the insulating member is a plastic injection molded material.

12. The display device as claimed in claim 11 , wherein the insulating member includes a negative thermal expansion filler.

13. The display device as claimed in claim 1 , wherein the metal film includes at least one of an aluminum film, an aluminum alloy film, a copper film, and a copper alloy film.

14. An organic light emitting diode (OLED) display, comprising:
a display substrate;
a display unit disposed on the display substrate and including a common power line and a common electrode;
a sealing substrate affixed to the display substrate by at least one adhering layer located outside an outer periphery of the display unit, the sealing substrate located outside of a display area of the display substrate, the sealing substrate including first and second through holes through the sealing substrate;
a first conductive portion disposed on inner and outer sides of the sealing substrate and extending through the first through holes, the first conductive portion supplying a first electric signal to the common power line; and
a second conductive portion disposed on the inner and outer sides of the sealing substrate and extending through the second through holes, the second conductive portion supplying a second electric signal to the common electrode,
wherein the sealing substrate includes,
a composite member including a resin and a plurality of carbon fibers, and
an insulating member attached to the composite member and including at least one through hole among the first and second through holes;
wherein the insulating member is attached to the composite member at peripherally outward sides of at least three peripheral edges of the composite member, and wherein the insulating member includes the first through holes, and the composite member includes the second through holes, and
wherein the at least one adhering layer includes a first non-conductive adhering layer located outside the outer periphery of the display unit, a second non-conductive adhering layer located peripherally outward from the first non-conductive adhering layer, and a conductive adhering layer between the first non-conductive adhering layer and the second non-conductive adhering layer.

15. The OLED display as claimed in claim 14 , further comprising:
a pad unit disposed peripherally outward from the display unit, and including a first pad connected with the common power line and a second pad connected with the common electrode; and
the conductive adhering layer is disposed between the first pad and the first conductive portion and between the second pad and the second conductive portion.

16. The OLED display as claimed in claim 15 , wherein the common power line includes a first common power line and a second common power line that cross each other, and wherein the pad unit includes a plurality of the first pad and the second pad iteratively alternated along one direction of the display substrate.

17. The OLED display as claimed in claim 15 , wherein the conductive adhering layer is electrically conductive in the thickness direction and electrically insulating in directions other than the thickness direction.

18. The OLED display as claimed in claim 14 , further comprising a first pad disposed at an outer side of the display unit and the conductive adhering layer is disposed between the first pad and the first conductive portion, and wherein the second conductive portion is directly attached to the common electrode.

19. The OLED display as claimed in claim 18 , further comprising a plurality of spacers disposed at a lower portion of the common electrode,
wherein the com

Assignees

• Lee Choong-Ho
• Nam Kie Hyun
• Lee Jung-Min
• Samsung Display Co Ltd

Inventors

• Lee Choong-Ho
• Nam Kie Hyun
• Lee Jung-Min

Classifications

• H10K59/8722

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K59/8721

  Metallic sealing arrangements · CPC title

• H10K50/84

  Passivation; Containers; Encapsulations · CPC title

• H10K59/131 Primary

  Interconnections, e.g. wiring lines or terminals · CPC title

• H01L51/5246

  Electricity · mapped topic