Display device

• US 8,274,789 B2
• Filed: 09/29/2009
• Issued: 09/25/2012
• Est. Priority Date: 09/30/2008
• Status: Active Grant

• Current Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Nakamichi, Masaya, Takahashi, Shohei
• Primary Examiner(s): Datskovskiy, Michail V
• Application Number:
  US12/568,764
• Publication Number:
  US 20100078152A1
• Time in Patent Office: 1,092 Days
• Field of Search: 36167946-67954, 361688-697, 361/701, 361721-727, 361/831, 165/104.14, 165/104.26, 165/104.33, 165/104.34, 165121-126, 165/185, 313/46, 313/48, 313/582, 313 22- 25, 313/35, 313/36, 313/44, 313/27, 313/11, 313/13, 313/17, 345/1.1, 345/84, 345/87, 345/214, 349/161, 349 60- 65, 349/20, 362/31, 362/373, 362/97.1, 362/632, 362/240, 362/294
• US Class Current: 361/688
• CPC Class Codes: F28D 15/0275 Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133311 Environmental protection, e.g. against dust or humidity
• CPC Class Codes: G02F 2201/36 Airflow channels, e.g. constructional arrangements facilitating the flow of air
• CPC Class Codes: H05K 7/20972 Forced ventilation, e.g. on heat dissipaters coupled to components

Abstract

A display device according to the present invention comprises a housing having a waterproof structure and provided with an accommodation room formed therein, a ventilation part defined outside the accommodation room and leading to outside of the housing, a display panel arranged inside the accommodation room and including a display screen viewable from a front surface side of the housing, and one or a plurality of heat pipes arranged on a rear surface side of the display panel. The heat pipe passes through a side surface wall forming the accommodation room and extends from inside of the accommodation room to inside of the ventilation part.

Claims

1. A display device comprising:

a housing having a waterproof structure and provided with an accommodation room formed therein;

a ventilation part defined outside the accommodation room and leading to outside of the housing;

a display panel arranged inside the accommodation room and including a display screen viewable from a front surface side of the housing; and

one or a plurality of heat pipes arranged on a rear surface side of the display panel,

the heat pipe passing through a side surface wall forming the accommodation room and extending from inside of the accommodation room to inside of the ventilation part,

wherein a heat releasing member is connected to the heat pipe in the ventilation part.

2. The display device according to claim 1, wherein the heat releasing member comprises a first heat releasing part and a second heat releasing part which sandwich the heat pipe from both sides, a pair of grooves is defined in the first heat releasing part and the second heat releasing part, and the heat pipe fits in the pair of grooves.

3. The display device according to claim 2, wherein the plurality of heat pipes are arranged in line in the vertical direction on the rear surface side of the display panel, the heat releasing member which comprises the first heat releasing part and the second heat releasing part is connected to each of the plurality of heat pipes, the first heat releasing parts are arranged on the front surface of the housing side of the heat pipes and formed integrally, and the second heat releasing parts are arranged on the rear surface of the housing side of the heat pipes and formed integrally.

4. The display device according to claim 1, wherein a groove in which the heat pipe is to fit in the ventilation part is defined in the heat releasing member.

5. A display device comprising:

a housing having a waterproof structure and provided with an accommodation room formed therein;

a ventilation part defined outside the accommodation room and leading to outside of the housing;

a display panel arranged inside the accommodation room and including a display screen viewable from a front surface side of the housing; and

one or a plurality of heat pipes arranged on a rear surface side of the display panel,

the heat pipe passing through a side surface wall forming the accommodation room and extending from inside of the accommodation room to inside of the ventilation part,

wherein the heat pipe is fixed to the rear surface of the display panel.

6. A display device comprising:

a display panel;

a housing sealing around the display panel and making a display screen of the display panel viewable from outside;

a ventilation part extending in the vertical direction on a side surface side of the display panel;

a heat pipe arranged on a rear surface side of the display panel and extending into the ventilation part; and

a fan making air in the ventilation part flow from one end to the other end of the ventilation part.