Liquid crystal display

• US 20030007109A1
• Filed: 05/16/2002
• Published: 01/09/2003
• Est. Priority Date: 05/18/2001
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Sang-Hoon
• Granted Patent: US 6,933,990 B2
• Time in Patent Office: Days
• US Class Current: 349/58
• CPC Class Codes: G02F 1/133615 Edge-illuminating devices, i.e. illuminating from the side
• CPC Class Codes: G02F 1/133628 with cooling means

Abstract

There is disclosed a liquid crystal display (LCD) device that prevents degeneration of a displaying performance due to heat generated in the LCD. A heat shielding thin film of an aluminum-contained material, which is disposed in a receiving container, shields the heat additionally generated during a converting process of power for driving a lamp in an inverter module, thereby minimizing the heat to be transferred to a reflector panel. Therefore, the heat generated during a process of producing light is efficiently blocked and discharged, thereby minimizing the degeneration of displaying characteristic.

Claims

1. A liquid crystal display (LCD) device, comprising:

an LCD panel assembly for controlling a liquid crystal to display an image;

a backlight assembly provided with a lamp assembly for supplying light to the LCD panel assembly and a light uniformity-enhancing module for improving uniformity of the light generated from the lamp assembly;

a receiving container for receiving and securing the LCD panel assembly and the backlight assembly;

an inverter disposed at an outer surface of the receiving container to supply power needed to drive the lamp assembly; and

a heat shielding means disposed at the receiving container corresponding to a portion between the inverter and the receiving container so as to shield heat generated from the inverter and to prevent the heat from being transferred to the light uniformity- enhancing module.

2. The LCD device of claim 1, wherein the heat shielding means has a plate shape of a metal.

3. The LCD device of claim 2, wherein the heat shielding means is comprised of aluminum or an aluminum alloy.

4. The LCD device of claim 2, wherein the heat shielding means has at least one or more metal thin films, and the one or more metal thin film is bonded to another metal thin film by an adhesive material.

5. The LCD device of claim 4, wherein the heat shielding means has two metal thin films bonded to each other using the adhesive material, and each of the metal thin films has a different thickness.

6. The LCD device of claim 5, wherein a first film of the two metal thin films, which is adjacent to the backlight assembly, is thicker than a second film of the two metal thin films.

7. The LCD device of claim 1, wherein the heat shielding means has a greater surface area than does the inverter.

8. The LCD device of claim 7, wherein the heat shielding means has a surface area approximately twice as large as that of the inverter.

9. The LCD device of claim 1, wherein an opening is formed at an outer surface of the receiving container, corresponding to a portion on which the heat shielding means is mounted, so as to be smaller than the heat shielding means, and a short jaw on which the heat shielding means is mounted is formed at an edge of the opening so that at least one of the backlight assembly and the inverter is apart from the heat shielding means at a desired distance.

10. The LCD device of claim 1, wherein the heat shielding means prevents the heat generated from the inverter from being transferred to a reflector panel of the backlight assembly and thus deformation of the reflector panel is prevented.

11. The LCD device of claim 1, wherein the heat shielding means is embossed so as to increase a surface area thereof.

12. The LCD device of claim 1, wherein the heat shielding means is wrinkled so as to increase a surface area thereof

14. The LCD device of claim 13, wherein a portion of the heat shielding means is elongatively extended to be electrically connected to the conductive chassis.

13. A liquid crystal display (LCD) device, comprising:

an LCD panel assembly for controlling a liquid crystal to display an image;

a backlight assembly provided with a lamp assembly for supplying light to the LCD panel assembly, and a light uniformity-enhancing module for improving uniformity of light generated from the lamp assembly;

a receiving container for receiving and securing the LCD panel assembly and the backlight assembly;

a conductive chassis for preventing the LCD panel assembly from being separated from the outside;

an inverter disposed at an outer surface of the receiving container to supply power necessary to drive the lamp assembly;

a heat shielding means, which shields heat generated from the inverter and prevents the heat from being transferred to the light uniformity-enhancing module; and

a ground member for electrically connecting the inverter and the heat shielding means.