Organic light emitting diode display

Patent metadata

Field	Value
Publication number	US-9620742-B2
Application number	US-201514612112-A
Country	US
Kind code	B2
Filing date	Feb 2, 2015
Priority date	Sep 10, 2014
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

An organic light emitting diode display includes: an organic light emitting diode panel; a first composite sheet including a first heat dissipation sheet and a first buffer sheet below the organic light emitting diode panel; a second composite sheet including a second heat dissipation sheet and a second buffer sheet and disposed below the organic light emitting diode panel and spaced apart from the first composite sheet; a first heat source below the first composite sheet; and a second heat source above the second composite sheet.

First claim

What is claimed is:

1. An organic light emitting diode display comprising:
an organic light emitting diode panel;
a first composite sheet comprising a first heat dissipation sheet and a first buffer sheet below the organic light emitting diode panel;
a second composite sheet comprising a second heat dissipation sheet and a second buffer sheet below the organic light emitting diode panel and spaced apart from the first composite sheet;
a first heat source below the first composite sheet and overlapping with the first composite sheet; and
a second heat source above the second composite sheet and overlapping with the second composite sheet.

2. The organic light emitting diode display of claim 1 , wherein the organic light emitting diode panel comprises a first substrate comprising organic light emitting diodes and a second substrate on the first substrate,
wherein the first composite sheet further comprises a first adhesive sheet to bond the first substrate and the first buffer sheet to each other, and the first heat dissipation sheet is below the first buffer sheet, and
wherein the second composite sheet further comprises a second adhesive sheet to bond the first substrate and the second buffer sheet to each other, and the second heat dissipation sheet is below the second buffer sheet.

3. The organic light emitting diode display of claim 2 , wherein the first substrate comprises a base substrate comprising a glass substrate, the first adhesive sheet bonds the glass substrate and the first buffer sheet to each other, and the second adhesive sheet bonds the glass substrate and the second buffer sheet to each other.

4. The organic light emitting diode display of claim 2 , wherein the first substrate comprises a base substrate comprising a first polymer resin thin film,
wherein the organic light emitting diode display further comprises a protective film between the first polymer resin thin film and the first adhesive sheet and between the first polymer resin thin film and the second adhesive sheet to protect a lower portion of the first polymer resin thin film, and
wherein the protective film comprises a second polymer resin thin film of a protective layer and an adhesive layer for bonding the protective layer to the first polymer resin thin film.

5. The organic light emitting diode display of claim 1 , wherein the organic light emitting diode panel comprises a first substrate comprising organic light emitting diodes and a second substrate on the first substrate,
wherein the first composite sheet further comprises a first adhesive sheet to bond the first substrate and the first buffer sheet to each other, and the first heat dissipation sheet is below the first buffer sheet, and
wherein the second composite sheet further comprises a second adhesive sheet to bond the first substrate and the second heat dissipation to each other, and the second buffer sheet is below the second heat dissipation sheet.

6. The organic light emitting diode display of claim 5 , wherein the first substrate comprises a base substrate comprising a glass substrate, the first adhesive sheet bonds the glass substrate and the first buffer sheet to each other, and the second adhesive sheet bonds the glass substrate and the second heat dissipation sheet to each other.

7. The organic light emitting diode display of claim 5 , wherein the first substrate comprises a base substrate comprising a first polymer resin thin film,
wherein the organic light emitting diode display further comprises a protective film between the first polymer resin thin film and the first adhesive sheet and between the first polymer resin thin film and the second adhesive sheet to protect a lower portion of the first polymer resin thin film, and
wherein the protective film comprises a second polymer resin thin film of a protective layer and an adhesive layer for bonding the protective layer to the first polymer resin thin film.

8. The organic light emitting diode display of claim 1 , wherein each of the first heat dissipation sheet and the second heat dissipation sheet comprises at least one selected from the group consisting of a graphite sheet and a metal sheet.

9. The organic light emitting diode display of claim 1 , wherein each of the first buffer sheet and the second buffer sheet comprises a polymer resin foam.

10. The organic light emitting diode display of claim 1 , further comprising:
a polarizer on the organic light emitting diode panel;
a cover window above the polarizer; and
a resin layer between the organic light emitting diode panel and the cover window.

11. An organic light emitting diode display comprising:
an organic light emitting diode panel;
a first composite sheet comprising a first heat dissipation sheet and a first buffer sheet below the organic light emitting diode panel;
a second composite sheet comprising a second heat dissipation sheet and a second buffer sheet below the organic light emitting diode panel and spaced apart from the first composite sheet;
a first heat source below the first composite sheet;
a second heat source above the second composite sheet; and
a first printed circuit board below the first heat dissipation sheet and a second printed circuit board, at least a portion of the second printed circuit board being below the second heat dissipation sheet, wherein a support member for supporting the organic light emitting diode panel is between the first printed circuit board and the second printed circuit board.

12. The organic light emitting diode display of claim 11 , wherein the first printed circuit board is below the support member, and the first printed circuit board extends below a lower portion of the second heat dissipation sheet, and
wherein the second printed circuit board is on the support member, and the second printed circuit board extends below a lower portion of the first heat dissipation sheet.

13. The organic light emitting diode display of claim 11 , wherein the first printed circuit board comprises the first heat source, and the first heat source comprises at least one selected from the group consisting of an application processor (AP) and a direct current to direct current (DC-DC) converter.

14. The organic light emitting diode display of claim 13 , wherein the second printed circuit board is electrically coupled to the second heat source, and the second heat source comprises an integrated circuit chip mounted on the organic light emitting diode panel.

15. An organic light emitting diode display comprising:
an organic light emitting diode panel;
a first composite sheet comprising a first heat dissipation sheet and a first buffer sheet below the organic light emitting diode panel;
a second composite sheet comprising a second heat dissipation sheet and a second buffer sheet below the organic light emitting diode panel;
a first region where the first composite sheet and the second composite sheet are separated and spaced apart from each other;
a second region where the first composite sheet and the second composite sheet are coupled to each other;
a first heat source below the first composite sheet in the first region and overlapping with the first composite sheet; and
a second heat source above the second composite sheet and overlapping with the second composite sheet in the first region.

16. The organic light emitting diode display of claim 15 , wherein the organic light emitting diode panel comprises a first substrate comprising organic light emitting diodes and a second substrate on the first substrate,
wherein the first composite sheet further comprises a first adhesi

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Dong Cheol

Classifications

• H10K59/87

  Passivation; Containers; Encapsulations · CPC title

• H10K50/87

  Arrangements for heating or cooling · CPC title

• H10K59/8794 Primary

  Arrangements for heating and cooling · CPC title

• H01L51/5237

  Electricity · mapped topic

• H01L27/3244

  Electricity · mapped topic