Display apparatus including an insulating material and heat transfer particles

Patent metadata

Field	Value
Publication number	US-11234349-B2
Application number	US-201916660955-A
Country	US
Kind code	B2
Filing date	Oct 23, 2019
Priority date	Sep 3, 2014
Publication date	Jan 25, 2022
Grant date	Jan 25, 2022

Abstract

Provided is a display apparatus including a display panel, a covering member, and an intermediate member. The intermediate member includes a base material including an insulating material and a heat transfer particle, and is disposed between the display panel and the covering member The display panel includes: a substrate; an encapsulation member which faces the substrate; and a display device which is arranged between the substrate and the encapsulation member and displays an image, the covering member is arranged to face the display panel, and the intermediate member is disposed in a gap between the covering member and an area of the substrate where the encapsulation member is not disposed.

First claim

What is claimed is:

1. A display apparatus comprising:
a display panel;
a covering member;
a bonding member arranged between the display panel and the covering member; and
an intermediate member having a different composition than the bonding member and comprising a base material comprising an insulating material and a plurality of heat transfer particles, the intermediate member disposed between the display panel and the covering member,
wherein:
the display panel comprises:
a substrate;
an encapsulation member which faces the substrate; and
a display device arranged between the substrate and the encapsulation member;

the covering member is arranged to face the display panel;
the intermediate member is disposed in a gap between the covering member and an area of the substrate where the encapsulation member is not disposed;
the plurality of heat transfer particles comprise at least two particles spaced apart from each other;
the plurality of heat transfer particles comprise at least a particle spaced apart from the substrate and at least a particle spaced apart from the covering member; and
the intermediate member is disposed to be non-overlapping with the bonding member in a thickness direction.

2. The display apparatus of claim 1 , wherein the insulating material comprises an organic material.

3. The display apparatus of claim 1 , wherein the insulating material comprises a resin-based material.

4. The display apparatus of claim 1 , wherein the intermediate member is arranged to contact sides of the bonding member.

5. The display apparatus of claim 1 , wherein the bonding member is arranged to correspond to a surface of the encapsulation member which faces the covering member.

6. The display apparatus of claim 1 , wherein the intermediate member is disposed in a gap between the covering member and an area of the encapsulation member.

7. The display apparatus of claim 1 , further comprising:
an integrated circuit (IC) to transmit an electric signal to the display device, the IC being disposed on a surface of the substrate which is not covered by the encapsulation member; and
a main circuit member which is electrically connected to the IC,
wherein the intermediate member covers portions of the IC and the main circuit member, the portions of the IC and the main circuit member being disposed within the gap between the covering member and the area of the substrate where the encapsulation member is not disposed.

8. The display apparatus of claim 1 , wherein the intermediate member is arranged to contact sides of the encapsulation member.

9. The display apparatus of claim 1 , wherein the display device comprises:
an organic light-emitting device comprising a first electrode, a second electrode, and an emission layer disposed between the first and second electrodes,
wherein the organic light-emitting device is arranged between the substrate and the encapsulation layer.

10. The display apparatus of claim 1 , wherein the heat transfer particles comprise metals or carbon-based materials.

11. A display apparatus comprising:
a display panel comprising one or more display devices to display an image to a user;
a covering member arranged to face the display panel;
a bonding member to bond the display panel and the covering member, the bonding member being arranged between the display panel and the covering member; and
an intermediate member disposed in a gap between the display panel and the covering member, the intermediate member having a different composition than the bonding member and comprising a base material comprising an insulating material and a plurality of heat transfer particles,
wherein:
the plurality of heat transfer particles comprise at least two particles spaced apart from each other;
the plurality of heat transfer particles comprise at least a particle spaced apart from the substrate and at least a particle spaced apart from the covering member; and
the intermediate member is disposed to be non-overlapping with the bonding member in a thickness direction.

12. The display apparatus of claim 11 , wherein the insulating material comprises an organic material.

13. The display apparatus of claim 11 , wherein the display panel comprises a substrate and an encapsulation member which faces the substrate,
wherein the one or more display devices are arranged between the substrate and the encapsulation member, and
wherein the intermediate member is disposed in a gap between the covering member and the display panel where the encapsulation member is not arranged.

14. The display apparatus of claim 11 , wherein the intermediate member is arranged to contact sides of the bonding member.

15. The display apparatus of claim 11 , wherein the intermediate member is arranged to fill spaces in a gap between the display panel and the covering member.

16. The display apparatus of claim 11 , wherein the one or more display devices comprise an organic light-emitting device or a liquid crystal display device.

17. The display apparatus of claim 11 , wherein the heat transfer particles comprise metals or carbon-based materials.

Assignees

• Samsung Display Co Ltd

Inventors

• Park Jaechun
• Kim Yunho
• Oh Jeongseok

Classifications

• H05K2201/10128

  Display · CPC title

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• H05K1/147

  at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit (H05K1/148 takes precedence) · CPC title

• G02F1/13454

  Drivers integrated on the active matrix substrate (G02F1/136277 takes precedence) · CPC title

• H05K7/20963 Primary

  Heat transfer by conduction from internal heat source to heat radiating structure (H05K7/20972 takes precedence) · CPC title