Display device and television receiver

• US 9,091,418 B2
• Filed: 04/02/2012
• Issued: 07/28/2015
• Est. Priority Date: 06/07/2011
• Status: Expired due to Fees

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Nakamura, Shinichi, Ueno, Yohichi
• Primary Examiner(s): Dastouri, Mehrdad
• Assistant Examiner(s): RAHAMAN, MOHAMMED S
• Application Number:
  US14/124,205
• Publication Number:
  US 20140125877A1
• Time in Patent Office: 1,212 Days
• Field of Search: 348836-843
• US Class Current: 1/1
• CPC Class Codes: F21V 29/15 Thermal insulation
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: H04N 5/64 Constructional details of receivers, e.g. cabinets or dust covers furniture aspects of television cabinets A47B81/06
• CPC Class Codes: H04N 5/655 Construction or mounting of chassis, e.g. for varying the elevation of the tube

Abstract

The display device includes a display unit having a display surface on a front side thereof, a front cabinet enclosing a peripheral edge part of the display unit, and a back cabinet covering a back side of the display unit. In the display device, a light source is installed on an inner surface of the front cabinet facing an outer peripheral surface of the display unit, and the front cabinet and the back cabinet have grooves formed on the outer surfaces thereof. The front cabinet includes an elongated cavity formed in a front corner of the front cabinet. The cavity extends substantially parallel to an array direction of an LED.

Claims

1. A display device comprising:

a display unit having a display surface on its front side,

a front cabinet enclosing a peripheral edge part of the display unit, and

a back cabinet covering a back side of the display unit,

wherein the front cabinet includes a cavity that prevents transference of heat,

a light source is installed on an inner surface of the front cabinet facing an outer peripheral surface of the display unit,

the front cabinet includes a front surface part and a peripheral surface part,

the front surface part covers a peripheral edge of the display surface,

the peripheral surface part protrudes rearward from the front surface part to enclose the outer peripheral surface of the display unit,

the cavity is formed at a corner where the front surface part and the peripheral surface part join,

the peripheral surface part comprises a groove formed on an outer surface of the peripheral surface part including the corner, and

a depth of the groove on the outer surface of the corner is deeper than the depth of grooves formed on the other portion of the peripheral surface part.

2. The display device according to claim 1, wherein the front surface part encloses a circumference of the display surface, and

the peripheral surface part is formed on a rear side of the front surface part along an outer peripheral edge of the front surface part to enclose the outer peripheral surface of the display unit.

3. The display device according to claim 2, wherein the front cabinet has grooves formed on the outer surface of the front cabinet including the corner, and a depth of the groove on the outer surface of the corner is deeper than the depth of the groove formed on the other portion of the front cabinet.

4. The display device according to claim 1, wherein a portion where the cavity is formed in the front cabinet protrudes further than other portions.

5. The display device according to claim 1, wherein the front cabinet includes a communication hole which is formed in the cavity to communicate with the outside.

6. The display device according to claim 5, wherein a plurality of communication holes are formed in the front cabinet.

7. The display device according to claim 1, wherein

the cavity is formed at a front corner where the front surface part and the peripheral surface part join;

the groove is formed on an outer surface of the front cabinet including the front corner;

a plurality of light sources are installed on the inner surface of the front cabinet facing the outer peripheral surface of the display unit to be arrayed in a direction substantially orthogonal to the normal line of the outer peripheral surface of the display unit and the normal line of the display surface; and

the groove is formed substantially parallel to the array direction of the light source.

8. The display device according to claim 7, wherein a cross-sectional shape, width, or depth of the groove is substantially constant in the array direction of the light source.

9. The display device according to claim 7, wherein the cavity is penetrated substantially parallel to the array direction of the light source.

10. The display device according to claim 1, wherein the light source is a light emitting diode which is mounted on a substrate made of aluminum, and

the substrate is installed in the front cabinet.

11. The display device according to claim 1, wherein the front cabinet is formed by extrusion molding.

12. The display device according to claim 11, wherein the front cabinet is made of metal.

13. The display device according to claim 12, wherein the front cabinet is made of aluminum.

14. The display device according to claim 1, comprising a light guide plate which is disposed on the rear side of the display unit to emit an incident light toward the display unit,

wherein the display unit and the light guide plate are held in the front and back between the front cabinet and the back cabinet.

15. The display device according to claim 14, wherein the front cabinet protrudes rearward, and the light guide plate includes a pressing part configured to press the light guide plate to the rear side.

16. The display device according to claim 1, wherein the back cabinet is made of aluminum.

17. The display device according to claim 1, comprising a cover which covers at least a part of the front cabinet.

18. The display device according to claim 17, wherein the front cabinet is formed by jointing a plurality of rod-shaped members, and

the cover covers a joint part between the rod-shaped members.

19. The display device according to claim 17, wherein the light source is installed on the inner surface of the front cabinet facing the outer peripheral surface of the display unit, and

the cover covers a portion corresponding to the inner surface on which the light source is installed, in an outer surface of the front cabinet.

20. The display device according to claim 19, wherein a through hole is formed in a portion of the cover which covers the outer surface of the front cabinet.

21. The display device according to claim 17, wherein the cover has a non-covering part.

22. A television receiver comprising:

the display device according to claims 1; and

a receiving unit which receives television broadcasts,

wherein the display device is configured to display an image of the television broadcasts received by the receiving unit.

23. A display device comprising:

a display unit having a display surface on its front side,

a front cabinet enclosing a peripheral edge part of the display unit, and

a back cabinet covering a back side of the display unit,

wherein the front cabinet includes a cavity that prevents transference of heat,

a light source is installed on an inner surface of the front cabinet facing an outer peripheral surface of the display unit,

the front cabinet includes a front surface part and a peripheral surface part,

the front surface part covers a peripheral edge of the display surface,

the peripheral surface part protrudes rearward from the front surface part to enclose the outer peripheral surface of the display unit,

the cavity is formed at a front corner where the front surface part and the peripheral surface part join,

the front cabinet has a groove formed on an outer surface of the front cabinet including the front corner, and

a depth of the groove on the outer surface of the front corner is deeper than the depth of grooves formed on the other portion of the front cabinet.