# US 7,744,234 B2 · Backlight assembly and liquid crystal display having the same

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- Number: US 7,744,234 B2
- Document ID: US7744234B2
- Status: Granted
- Kind: B2
- Application number: 11/819,940
- Filed: 2007-06-29
- Published: 2008-01-03
- Granted: 2010-06-29
- Earliest claimed: 2006-06-30
- Assignees: LG Display Co., Ltd.
- Inventors: Gi Ryong Jeong; Hyung Yun Lee
- Web page: https://patentgrep.com/patent/US7744234B2

## CPC

- G02F 1/133608: {including particular frames or supporting 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 backlight assembly is suitable for preventing generation of foreign materials. The backlight assembly comprises a reflector on a bottom cover, a set of optical sheets supported by the bottom cover, stoppers on opposite edges of the bottom cover to prevent movement of the optical sheet set, and supports extending from the reflector at least partially contacting inner sides of the first stoppers.

## Claims

### Claim 1

A backlight assembly comprising:
a reflector on a bottom cover;
a set of optical sheets supported by the bottom cover;
stoppers on opposite edges of the bottom cover to prevent movement of the optical sheet set; and
supports extending from the reflector at least partially contacting inner sides of the first stoppers,
wherein the supports contact the opposite sides of the optical sheets and each of the supports has a width greater than that of each of the stoppers.

### Claim 2 (depends on 1)

The backlight assembly as claimed in claim 1, wherein the supports a step-shaped cross section.

### Claim 3 (depends on 1)

The backlight assembly as claimed in claim 1, wherein the supports are integrally formed with the reflector.

### Claim 4

A liquid crystal display comprising:
a backlight assembly including a plurality of light sources arranged on a reflector disposed on a bottom cover, a set of optical sheets supported by the bottom cover to diffuse and collect light from the light sources, stoppers formed on opposite edges of the bottom cover to prevent movement of the optical sheet set, and supports extending from the reflector to at least partially contacting inner sides of the first stoppers; and
a liquid crystal panel adjusting the light from the optical sheet set to display an image.
Wherein the supports contact the opposite sides of the optical sheets and each of the supports has a width greater than that of the stoppers.

### Claim 5 (depends on 4)

The liquid crystal display as claimed in claim 4, wherein the supports include a step-shaped cross section.

### Claim 6 (depends on 4)

The liquid crystal display as claimed in claim 4, wherein the supports are integrally formed with the reflector.