IP Library Granted Patent US 7,385,342
Granted Patent B2
US 7,385,342 · App. 10/842,456 · Granted Jun 10, 2008

Flat lamp for emitting lights to a surface area and liquid crystal display using the same

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Quick Facts
Patent No.
US 7,385,342
App. No.
10/842,456
Granted
Jun 10, 2008
Kind
B2
Abstract

A flat lamp for emitting light to a surface area of a liquid crystal display device includes a bottom having a channel uniformly crossing an entire surface of the bottom, an arc-discharging gas is disposed within the channel, a cover disposed upon an upper junction surface of the bottom, the cover is coated with a fluorescent material, and an electric field generating means for generating an electric field, wherein the electric field generating means is placed along opposing lateral sides of the channel.

Claims (13)

1. A liquid crystal display device, comprising:

a LCD panel;

a backlight assembly disposed adjacent to the LCD panel, wherein the backlight unit comprises:

a bottom having a channel uniformly crossing an entire surface thereof;

an arc-discharging gas injected into the channel;

a cover disposed on an upper junction surface of the bottom; and

an electric field generating means for generating an electric field, wherein the electric field generating means is disposed along opposing inner walls of the channel, and the electric field generating means is disposed in the channel.

2. The liquid crystal display device according to claim 1 , wherein the LCD panel comprises a lower glass substrate on which at least one thin film transistor is formed, an upper glass substrate on which at least one color filter is formed, and a liquid crystal material injected between the lower glass substrate and the upper glass substrate.

3. The liquid crystal display device according to claim 1 , wherein the electric field generating means comprises a cathode disposed at one of the opposing inner walls of the channel, an anode disposed at another of the opposing inner walls of the channel, and a connector connected to an end portion of the electric field generating means, wherein the connector applies an external power source to the electric field generating means.

4. The liquid crystal display device according to claim 1 , wherein the cover is coated with a fluorescent material.

5. The liquid crystal display device according to claim 1 , wherein the channel is of a serpentine shape.

6. The liquid crystal display device according to claim 1 , wherein the channel is of a volute shape.

7. The liquid crystal display device according to claim 1 , wherein the bottom and cover are round shaped.

Assignments (1)
CHANGE OF NAME Recorded Jun 19, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021147/0009 →