# US 9,519,168 B2 · Display apparatus

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- Number: US 9,519,168 B2
- Document ID: US9519168B2
- Status: Granted
- Kind: B2
- Application number: 13/869,324
- Filed: 2013-04-24
- Published: 2013-10-24
- Granted: 2016-12-13
- Earliest claimed: 2012-04-24
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Suk-ju Choi; Kye-hoon Lee; Yong-hun Kwon; Young-min Lee; Kun-ho Cho; Gil-tae Hur
- Web page: https://patentgrep.com/patent/US9519168B2

## CPC

- G02F 1/133308: {Support structures for LCD panels, e.g. frames or bezels}
- G02F 1/133603: {with LEDs}
- G02F 1/133608: {including particular frames or supporting means}
- G02F 1/133612: {Electrical details}
- G02F 1/133613: {characterized by the sequence of light sources}
- G02F 1/133628: {with cooling means}
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## 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

### Claim 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) and a plurality of light source packages installed on the main PCB,
wherein the main PCB comprises a conductive pattern layer to supply power to the plurality of light source packages,
wherein the conductive pattern layer comprises a first region and a second region, and an area of the first region is larger than an area of the second region,
wherein each of the light source packages comprises a light source, a first electrode, and a second electrode spaced apart from the first electrode in a width direction of the main PCB, and the light source is installed on the first electrode,
wherein the first region contacts the first electrode of a light source package and the second region contacts the second electrode of the light source package, and
wherein the second region is entirely separated from the first region by an insulation layer.

### Claim 2 (depends on 1)

The display apparatus of claim 1, 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.

### Claim 3 (depends on 2)

The display apparatus of claim 2, 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.

### Claim 4 (depends on 2)

The display apparatus of claim 2, wherein the light sources are light-emitting diodes (LEDs).

### Claim 5 (depends on 2)

The display apparatus of claim 2, wherein the main PCB comprises:
a board main body;
and
a heat diffusion sheet which is formed on a lower surface of the board main body,
wherein the conductive pattern layer is formed on an upper surface of the board main body.

### Claim 6 (depends on 1)

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.

### Claim 7 (depends on 6)

The display apparatus of claim 6, 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.

### Claim 8 (depends on 7)

The display apparatus of claim 7, 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.

### Claim 9 (depends on 8)

The display apparatus of claim 8, 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.

### Claim 10 (depends on 9)

The display apparatus of claim 9, 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.

### Claim 11 (depends on 7)

The display apparatus of claim 7, 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.

### Claim 12 (depends on 1)

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

### Claim 13 (depends on 12)

The display apparatus of claim 12, wherein the hooks extend along a width direction of the bottom chassis.

### Claim 14 (depends on 13)

The display apparatus of claim 13, wherein the main PCBs are hooked to the hooks through transverse movements of the light-emitting board units.

### Claim 15 (depends on 12)

The display apparatus of claim 12, 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.

### Claim 16 (depends on 15)

The display apparatus of claim 15, wherein the plurality of hooks extend along the longitudinal direction of the bottom chassis.

### Claim 17 (depends on 16)

The display apparatus of claim 16, wherein the main PCBs are hooked to the hooks through longitudinal movements of the light-emitting board units.

### Claim 18

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 source packages 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,
wherein each of the plurality of hooks is formed in a single body with the bottom chassis,
wherein the main PCB comprises a conductive pattern layer to supply power to the plurality of light source packages,
wherein the conductive pattern layer comprises a first region and a second region, and an area of the first region is larger than an area of the second region,
wherein each of the light source packages comprises a light source, a first electrode, and a second electrode spaced apart from the first electrode in a width direction of the main PCB, and the light source is installed on the first electrode,
wherein the first region contacts the first electrode of a light source package and the second region contacts the second electrode of the light source package,
wherein the second region is entirely separated from the first region by an insulation layer.

### Claim 19 (depends on 18)

The display apparatus according to claim 18, 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.