Radiating sheet and PDP panel

• US 20030017320A1
• Filed: 07/12/2002
• Published: 01/23/2003
• Est. Priority Date: 07/13/2001
• Status: Active Grant

• Current Assignee: Mochida Corporation
• Original Assignee: Mochida Corporation
• Inventors: Ebihara, Fumitaka, Takahashi, Masahiko, Tatsuzawa, Masao
• Granted Patent: US 6,794,026 B2
• Time in Patent Office: Days
• US Class Current: 428/306.6
• CPC Class Codes: B32B 15/046 of foam
• CPC Class Codes: B32B 15/08 of synthetic resin
• CPC Class Codes: B32B 2266/0278 Polyurethane
• CPC Class Codes: B32B 5/18 characterised by features of a layer of foamed material
• CPC Class Codes: H01J 2217/492 Details
• CPC Class Codes: H01L 23/3737 Organic materials with or without a thermoconductive filler
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H05K 7/20963 Heat transfer by conduction from internal heat source to heat radiating structure H05K7/20972 takes precedence
• CPC Class Codes: Y10T 428/249953 Composite having voids in a component [e.g., porous, cellular, etc.]
• CPC Class Codes: Y10T 428/249955 Void-containing component partially impregnated with adjacent component
• CPC Class Codes: Y10T 428/249982 With component specified as adhesive or bonding agent
• CPC Class Codes: Y10T 428/249985 Composition of adhesive or bonding component specified
• CPC Class Codes: Y10T 428/249986 Void-containing component contains also a solid fiber or solid particle
• CPC Class Codes: Y10T 428/249987 With nonvoid component of specified composition
• CPC Class Codes: Y10T 428/24999 Inorganic
• CPC Class Codes: Y10T 428/31551 Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
• CPC Class Codes: Y10T 428/31598 Next to silicon-containing [silicone, cement, etc.] layer
• CPC Class Codes: Y10T 428/31601 Quartz or glass
• CPC Class Codes: Y10T 428/31605 Next to free metal
• CPC Class Codes: Y10T 428/31663 : As siloxane, silicone or silane

Abstract

To realize uniform heat distribution by adhering a radiating sheet tightly to a radiating element such as a PDP glass panel, and a heat sink such as an aluminum chassis, transfer heat smoothly to the heat sink such as the aluminum, and release foams entrapped between the radiating sheet and radiating element or heat sink efficiently. The radiating sheet is composed by impregnating a radiating material selected from the group consisting of a radiating gel and a radiating grease in a radiating base material having continuous foams, and layers excellent in heat releasing properties such as a silicone gel or an luminum foil may be formed further on the radiating sheet, or cuts may be made into these layers.

Claims

1. A radiating sheet, wherein a spongiform radiating element is formed by impregnating anyone of radiating materials selected from the group consisting of a radiating gel and a radiating grease, in a radiating base material having continuous foams.

2. The radiating sheet according to claim 1, wherein the radiating base material is a urethane foamed material.

3. The radiating sheet according to claim 1 or 2, wherein the radiating gel is composed of a silicone gel and a filler.

4. The radiating sheet according to claim 1 or 2, wherein the radiating grease is a silicone radiating grease.

5. A radiating sheet forming a spongiform radiating element-radiating material layer by coating a spongiform radiating element according to any one of claims 1 to 4 with a radiating material layer composed of the radiating material.

6. A radiating sheet forming a spongiform radiating element-aluminum foil layer by adhering an aluminum foil layer to a spongiform radiating element according to any one of claims 1 to 4.

7. A radiating sheet applying an acrylic pressure-sensitive adhesive to a radiating sheet according to any one of claims 1 to 6.

8. A radiating sheet forming a cut in the surface of a radiating sheet according to any one of claims 1 to 7.

9. A PDP panel formed by inserting a radiating sheet according to any one of claims 1 to 8 between a glass panel and an aluminum panel.