US 7,744,265 B2 · Backlight assembly without a bottom chassis

Abstract

A backlight assembly that does not use a bottom chassis is presented. The absence of bottom chassis reduces manufacturing cost, simplifies the assembly process, and facilitates heat dissipation. The backlight assembly includes a lamp, a light guide plate, a mold frame and a securing mold. The lamp unit includes a lamp that generates light and a lamp cover that partially encloses the lamp. The light guide plate receives the light from the lamp unit and guides the light toward the front of the backlight assembly. The mold frame receives the lamp unit and the light guide plate through an open portion. The securing mold is coupled to the lamp unit and combines with the mold frame to secure the first lamp unit. The backlight assembly relies on one mold frame to hold its components together.

Claims22

Dependent claims

A backlight assembly for providing a display panel with light, comprising:

a first lamp unit including a lamp that generates light and a lamp cover that partially encloses the lamp;
a light guide plate positioned to receive the light generated from the first lamp unit and guide the light toward the front of the backlight assembly;
a mold frame receiving the first lamp unit and the light guide plate;
and
a securing mold including:
a connecting portion for coupling with the mold frame;
and
a cover portion extending from the connecting portion and disposed between the first lamp unit and the display panel to fix the first lamp unit between the mold frame and the securing mold.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

11/509,243Filed 23 Aug 2006

Priority

KR 10-2005-007766024 Aug 2005

Published

US 2007/0047265 A11 Mar 2007

Granted

29 Jun 2010

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

G02B 6/0086
Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides,…:…
G02B 6/0031
Provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source: reflecting…
G02B 6/0083
Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides,…:…
G02B 6/0085
Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides,…:…

Backlight assembly without a bottom chassis

Life of this patent

Backlight assembly without a bottom chassis

Life of this patent

Abstract

Claims22