# US 7,609,335 B2 · Backlight assembly and liquid crystal display having the same

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- Number: US 7,609,335 B2
- Document ID: US7609335B2
- Status: Granted
- Kind: B2
- Application number: 12/043,324
- Filed: 2008-03-06
- Published: 2008-10-30
- Granted: 2009-10-27
- Earliest claimed: 2007-04-24
- Assignees: Samsung Electronic Co., Ltd.
- Inventors: Ho-Han Ryu
- Web page: https://patentgrep.com/patent/US7609335B2

## CPC

- G02F 1/133604: {with lamps}
- 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 backlight assembly and a liquid crystal display having the same which can prevent a lamp wire from being damaged, simplify the manufacturing process, and reduce the manufacturing cost. The backlight assembly includes a receiving container for receiving a lamp, a lamp wire, connected to the lamp, for supplying power to the lamp, and a lamp holder, coupled to the receiving container and connected to the lamp, for guiding the lamp wire in parallel with the lamp.

## Claims

### Claim 1

A backlight assembly comprising:
a receiving container;
a lamp placed in the receiving container;
a lamp wire connected to the lamp for supplying power to the lamp; and
a lamp holder, coupled to the receiving container, fixing an end portion of the lamp and guiding the lamp wire, wherein the lamp holder guides the lamp wire along an outer side of the receiving container in a first direction substantially parallel with the lamp.

### Claim 2 (depends on 1)

The backlight assembly according to claim 1, further comprising:
a connector connecting the lamp wire to a driving unit generating the power.

### Claim 3 (depends on 1)

The backlight assembly according to claim 1, wherein the lamp holder comprises:
a fixing portion fixing the end portion of the lamp, the fixing portion being positioned at an inner side of the receiving container;
a direction switching portion positioned at an outer side of the receiving container, wherein the direction switching portion switches the lamp wire from a second direction substantially perpendicular to the lamp to the first direction; and
a connection portion connecting the fixing portion and the direction switching portion.

### Claim 4 (depends on 3)

The backlight assembly according to claim 3, wherein the direction switching portion comprises:
an insertion portion into which the lamp wire oriented perpendicular to the lamp is inserted, the insertion portion being formed in an upper surface of the direction switching portion;
a guiding portion, formed in a side surface of the direction switching portion, guiding the lamp wire to the first direction; and
a connection passage linking the insertion portion and the guiding portion.

### Claim 5 (depends on 3)

The backlight assembly according to claim 3, wherein the fixing portion comprises a lamp fixing groove receiving the end portion of the lamp.

### Claim 6 (depends on 3)

The backlight assembly according to claim 3, wherein the lamp holder further comprises a joint groove for fixing the lamp holder to the receiving container.

### Claim 7 (depends on 6)

The backlight assembly according to claim 6, wherein the receiving container comprises a joint portion positioned in the joint groove.

### Claim 8 (depends on 7)

The backlight assembly according to claim 7, wherein the lamp holder is coupled to a lower part of the receiving container.

### Claim 9 (depends on 7)

The backlight assembly according to claim 7, wherein the lamp holder is coupled to a side surface of the receiving container.

### Claim 10 (depends on 2)

The backlight assembly according to claim 2, further comprising:
a reflective member disposed between the lamp and the receiving container.

### Claim 11

A liquid crystal display comprising:
a liquid crystal display panel;
a backlight assembly for supplying light to the liquid crystal display panel, wherein the backlight assembly comprises:
a lamp;
an optical plate;
an optical sheet formed above the optical plate;
a receiving container for receiving the lamp, the optical plate, and the optical sheet;
a lamp wire connected to the lamp for supplying power to the lamp; and
a lamp holder, coupled to the receiving container, fixing an end portion of the lamp and guiding the lamp wire,
wherein the lamp holder guides the lamp wire along an outer side of the receiving container in a first direction substantially parallel with the lamp.

### Claim 12 (depends on 11)

The liquid crystal display according to claim 11, further comprising:
a connector connecting the lamp wire to a driving unit generating the power.

### Claim 13 (depends on 11)

The liquid crystal display according to claim 11, wherein the lamp holder comprises:
a fixing portion fixing the end portion of the lamp, the fixing portion being positioned at an inner side of the receiving container;
a direction switching portion positioned at an outer side of the receiving container,
wherein the direction switching portion switches the lamp wire from a second direction substantially perpendicular to the lamp to the first direction; and
a connection portion connecting the fixing portion and the direction switching portion.

### Claim 14 (depends on 13)

The liquid crystal display according to claim 13, wherein the direction switching portion comprises:
an insertion portion into which the lamp wire oriented perpendicular to the lamp is inserted, the insertion portion being formed in an upper surface of the direction switching portion;
a guiding portion, formed in a side surface of the direction switching portion, guiding the lamp wire to the first direction; and
a connection passage linking the insertion portion and the guiding portion.

### Claim 15 (depends on 13)

The liquid crystal display according to claim 13, wherein the fixing portion comprises a lamp fixing groove receiving the end portion of the lamp.

### Claim 16 (depends on 11)

The liquid crystal display according to claim 11, wherein the lamp holder further comprises a joint groove for fixing the lamp holder to the receiving container.

### Claim 17 (depends on 16)

The liquid crystal display according to claim 16, wherein the receiving container comprises a joint portion positioned in the joint groove.

### Claim 18 (depends on 17)

The liquid crystal display according to claim 17, wherein the lamp holder is coupled to a lower part of the receiving container.

### Claim 19 (depends on 17)

The liquid crystal display according to claim 17, wherein the lamp holder is coupled to a side surface of the receiving container.

### Claim 20 (depends on 19)

The liquid crystal display according to claim 19, further comprising:
a reflective member disposed between the lamp and the receiving container.
