Display device and television receiver

• US 8,432,499 B2
• Filed: 04/21/2010
• Issued: 04/30/2013
• Est. Priority Date: 06/17/2009
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Yokota, Masashi
• Primary Examiner(s): Natnael, Paulos M
• Application Number:
  US13/377,234
• Publication Number:
  US 20120086876A1
• Time in Patent Office: 1,105 Days
• Field of Search: 348/794, 348/790, 348/792, 348/725, 348/779, 348/836, 362/97.1, 362/97.4, 362/561, 362/294
• US Class Current: 348/794
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133314 Back frames
• CPC Class Codes: G02F 1/133322 Mechanical guidance or alignment of LCD panel support components
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means
• CPC Class Codes: G02F 2201/465 Snap -fit

Abstract

The present invention provides a display device that can be provided as a final product such as a television receiver simply by assembling a display panel and a backlight and is excellent in workability in assembling the display panel to the backlight while securing a wide effective display region. The display device according to the present invention includes an LED 52, an LED board 51 on which the LED 52 is mounted, a liquid crystal panel 11, a first cabinet Ca, a second cabinet Cb, and a reflection sheet 60. The liquid crystal panel 11 is configured to provide display using light from the LED 52. The liquid crystal panel 11 is attached to the first cabinet Ca. The LED board 51 is attached to the second cabinet Cb. The reflection sheet 60 is configured to reflect the light from the LED 52. The first cabinet Ca and the second cabinet Cb are engaged with each other and configured as an outer case that forms an exterior of a liquid crystal display device 10. The reflection sheet 60 is arranged on the inner surface of the second cabinet Cb in a state in which the reflection sheet 60 is supported by the LED board 51.

Claims

1. A display device comprising:

a light source;

a board on which the light source is mounted;

a display panel configured to provide display using light from the light source;

a first cabinet to which the display panel is attached;

a second cabinet to which the board is attached;

a reflection sheet configured to reflect the light from the light source; and

a power supply board arranged on a bottom surface of the second cabinet and arranged to supply electric power to the light source, wherein the second cabinet includes a board supporting section that is defined by projecting a portion of the bottom surface of the second cabinet toward the reflection sheet and supports the board, wherein

the first cabinet and the second cabinet are engaged with each other, and provided as an outer case that defines an exterior of the display device, and

the reflection sheet is arranged on an inner surface of the second cabinet in a state in which the reflection sheet is supported by the board.

2. The display device according to claim 1, further comprising a holding member that holds both of the reflection sheet and the board between the holding member and the second cabinet.

3. The display device according to claim 2, further comprising an optical sheet arranged between the first cabinet and the second cabinet and configured to diffuse the light from the light source, wherein the holding member includes a sheet supporting section that projects toward the optical sheet and supports the optical sheet.

4. The display device according to claim 1, wherein the board is arranged over at least an entire region of a bottom surface of the second cabinet in plan view.

5. The display device according to claim 2, wherein the holding member includes a projection piece projecting toward the second cabinet and is fixed to the second cabinet while piercing through both of the reflection sheet and the board.

6. The display device according to claim 5, wherein the projection piece pierces through the second cabinet, the reflection sheet, and the board, and is locked to the second cabinet from a side away from the board.

7. The display device according to claim 1, wherein the board includes a first wire for supplying electric power to the light source on a surface opposite the second cabinet.

8. The display device according to claim 1, wherein the board includes a second wire for supplying electric power to the light source on a surface opposite the reflection sheet.

9. The display device according to claim 1, wherein the display panel is a liquid crystal panel including liquid crystals.

10. A television receiver comprising the display device according to claim 1.

11. A display device comprising:

a light source;

a board on which the light source is mounted;

a display panel configured to provide display using light from the light source;

a first cabinet to which the display panel is attached;

a second cabinet to which the board is attached;

a reflection sheet configured to reflect the light from the light source; and

a holding member that is arranged to hold both of the reflection sheet and the board between the holding member and the second cabinet;

wherein

the first cabinet and the second cabinet are engaged with each other, and provided as an outer case that defines an exterior of the display device;

the reflection sheet is arranged on an inner surface of the second cabinet in a state in which the reflection sheet is supported by the board; and

the holding member includes a projection piece projecting toward the second cabinet and is fixed to the second cabinet while piercing through both of the reflection sheet and the board.

12. The display device according to claim 11, further comprising an optical sheet arranged between the first cabinet and the second cabinet and arranged to diffuse the light from the light source, wherein the holding member includes a sheet supporting section that projects toward the optical sheet and supports the optical sheet.

13. The display device according to claim 11, further comprising a power supply board arranged on a bottom surface of the second cabinet and arranged to supply electric power to the light source, wherein the second cabinet includes a board supporting section that is defined by projecting a portion of the bottom surface of the second cabinet toward the reflection sheet and supports the board.

14. The display device according to claim 11, wherein the board is arranged over at least an entire region of a bottom surface of the second cabinet in plan view.

15. The display device according to claim 11, wherein the projection piece pierces through the second cabinet, the reflection sheet, and the board, and is locked to the second cabinet from a side away from the board.

16. The display device according to claim 11, wherein the board includes a first wire arranged to supply electric power to the light source on a surface opposite the second cabinet.

17. The display device according to claim 11, wherein the board includes a second wire arranged to supply electric power to the light source on a surface opposite the reflection sheet.

18. The display device according to claim 11, wherein the display panel is a liquid crystal panel including liquid crystals.

19. A television receiver comprising the display device according to claim 11.