DISPLAY APPARATUS

• US 20130278860A1
• Filed: 04/24/2013
• Published: 10/24/2013
• Est. Priority Date: 04/24/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: CHOI, Suk-ju, LEE, Kye-hoon, KWON, Yong-hun, LEE, Young-min, CHO, Kun-ho, HUR, Gil-tae
• Granted Patent: US 9,519,168 B2
• Time in Patent Office: Days
• US Class Current: 349/58
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means
• CPC Class Codes: G02F 1/133612 Electrical details
• CPC Class Codes: G02F 1/133613 characterized by the sequence of light sources
• CPC Class Codes: G02F 1/133628 with cooling means

Abstract

A display apparatus is provided. The display apparatus includes a display panel which displays an image; a top chassis and a bottom chassis which house the display panel; and a plurality of light-emitting boards which are installed on an inner surface of the bottom chassis, each of the light-emitting boards including a main printed circuit board (PCB) that extends in a longitudinal direction and light source packages installed on the main PCB, and the light source packages are arranged to be farther from a first longitudinal edge of the main PCB than a second longitudinal edge of the main PCB.

Claims

1. A display apparatus comprising:

a display panel which displays an image;

a top chassis and a bottom chassis which house the display panel; and

a plurality of light-emitting board units which are installed on an inner surface of the bottom chassis, each of the light-emitting board units comprising a main printed circuit board (PCB) that extends in a longitudinal direction and a plurality of light source packages installed on the main PCB,

wherein the light source packages are arranged to be farther from a first longitudinal edge of the main PCB than a second longitudinal edge of the main PCB.

2. The display apparatus of claim 1, wherein the main PCB has a rectangular tape shape.

3. The display apparatus of claim 2, wherein each of the light source packages comprises:

a light source;

a first electrode;

a second electrode spaced apart from the first electrode in a width direction of the main PCB,

wherein the light source is installed on the first electrode.

4. The display apparatus of claim 3, wherein the first longitudinal edge of the main PCB is closer to the first electrodes than to the second electrodes;

and

the second longitudinal edge of the main PCB is closer to the second electrodes than to the first electrodes,

wherein the light source package is arranged to be closer to the second longitudinal edge than to the first longitudinal edge.

5. The display apparatus of claim 3, wherein the light sources are light-emitting diodes (LEDs).

6. The display apparatus of claim 3, wherein the main PCB comprises:

a board main body;

a conductive pattern layer which is formed on an upper surface of the board main body and supplies power to the light sources; and

a heat diffusion sheet which is formed on a lower surface of the board main body.

7. The display apparatus of claim 1, further comprising:

a sub board unit which is installed on the inner surface of the bottom chassis and is electrically and physically connected to the plurality of light-emitting board units.

8. The display apparatus of claim 7, wherein:

each of the light-emitting board units further comprises an input receptacle and an output receptacle which are installed on the main PCB; and

the sub board unit comprises a sub PCB, and a plurality of input plugs and a plurality of output plugs which are installed on the sub PCB,

wherein the input receptacles of the light-emitting board units are attached to respective ones of the plurality of input plugs, and the output receptacles of the light-emitting board units are attached to respective ones of the plurality of output plugs.

9. The display apparatus of claim 8, wherein each input receptacle is attached to the respective input plug through a pushing operation, and each output receptacle is attached to the respective output plug through a pushing operation.

10. The display apparatus of claim 9, wherein:

each of the input and output plugs comprises a plug body and at least one locking protrusion which protrudes from the plug body; and

each of the input and output receptacles comprises a receptacle body and at least one locking groove which locks with the locking protrusions.

11. The display apparatus of claim 10, wherein each of the locking grooves comprises:

a lock maintaining part which maintains locking of the locking protrusions; and

a lock releasing part which releases locking of the locking protrusions.

12. The display apparatus of claim 8, wherein each of the input and output plugs comprises a plug contact, and each of the input and output receptacles comprises a receptacle contact,

wherein the plug contacts contact the receptacle contacts when the plugs are attached to the receptacles.

13. The display apparatus of claim 1, wherein the bottom chassis comprises a plurality of hooks, and the main PCBs are hooked to the hooks.

14. The display apparatus of claim 13, wherein the hooks extend along a width direction of the bottom chassis.

15. The display apparatus of claim 14, wherein the main PCBs are hooked to the hooks through transverse movements of the light-emitting board units.

16. The display apparatus of claim 13, wherein each of the main PCBs comprises a plurality of hooking holes, and the main PCBs are hooked to the hooks through the plurality of hooking holes.

17. The display apparatus of claim 16, wherein the plurality of hooks extend along the longitudinal direction of the bottom chassis.

18. The display apparatus of claim 17, wherein the main PCBs are hooked to the hooks through longitudinal movements of the light-emitting board units.

19. A display apparatus comprising:

a display panel which displays an image;

a top chassis and a bottom chassis which house the display panel, the bottom chassis comprising a plurality of hooks attached to an inner surface thereof;

a plurality of main printed circuit board (PCB) units that extend in a longitudinal direction and which are detachably hooked into the plurality of hooks to mount the main PCB units to the bottom chassis, each of the main PCB units comprising a plurality of light sources that emit light onto a rear of the display panel; and

a sub-PCB that is detachably electrically and physically installed across the plurality of main PCB units and that provides power to the plurality of main PCB units.

20. The display apparatus according to claim 19, wherein each of the main PCBs comprises a receptacle,

the sub-PCB comprises a plurality of plugs corresponding in number to the number of receptacles on the main PCBs, and

each plug electrically connect to and physically snaps into a corresponding one of the receptacles in order to detachably electrically and physically connect the sub-PCB to the plurality of main PCBs units.