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Backlight unit using thermal conductive resin for liquid crystal display

A liquid crystal display and backlight technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of increasing product cost and hindering the solution of thermal problems

Inactive Publication Date: 2007-08-15
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Korean Publication No. 2004-0017718 discloses a method of applying a highly thermally conductive metal material such as aluminum to the lower plate of the backlight assembly to solve the heat problem of the backlight assembly, but the problem is that since the reflector is placed between the heating element and the Between the lower plate, so it hinders the solution of the thermal problem, and increases the cost of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 10 mm in diameter and 0.3 mm in thickness made of a thermoplastic thermally conductive resin composition containing 60% by weight of polyethylene terephthalate resin (manufactured by LG Chemical Co., Ltd.) and 40% by weight of boron nitride were prepared. sample.

Embodiment 2

[0044] Prepared by containing 60% by weight of polyethylene terephthalate resin (manufactured by LG Chemical Co., Ltd.), 25% by weight of boron nitride and 15% by weight of TiO 2 A sample with a diameter of 10 mm and a thickness of 0.3 mm made of the thermoplastic thermally conductive resin composition.

Embodiment 3

[0046] Prepared by containing 60% by weight of polycarbonate resin (manufactured by LG Chemical Co., Ltd.), 20% by weight of boron nitride and 20% by weight of TiO 2 A sample with a diameter of 10 mm and a thickness of 0.3 mm made of the thermoplastic thermally conductive resin composition.

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PUM

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Abstract

The present invention relates to a reflection plate for a backlight unit in a liquid crystal display device, and more particularly, to a reflection plate for a backlight unit in a liquid crystal display device, which is made of a thermoplastic thermal conductive resin composition having a thermal conductivity of at least 0.35 W / mK, thereby effectively solving the thermal problem of the backlight unit, and having excellent properties such as shock resistance, heat resistance, mechanical strength, and the like, as well as having excellent reflectivity, thereby improving the durability of the liquid crystal display device. Furthermore, the present invention relates to a backlight unit of a liquid crystal display device, comprising a reflection plate positioned at a lower portion of a lamp of the backlight unit for reflecting the light coming out of the lamp, a supporting rod for the lamp, and a lower plate functioning as a heat sink, wherein the reflection plate and the lower plate are made of the same material, thereby effectively solving the thermal problem of the backlight unit, and simplifying the manufacturing process.

Description

technical field [0001] The present invention relates to a reflective plate used in a backlight assembly and a backlight assembly in a liquid crystal display device, more specifically, the present invention relates to a reflective plate used in a backlight assembly in a liquid crystal display device, the The reflector effectively solves the heat problem of the backlight assembly, and has excellent performance, such as impact resistance, heat resistance, mechanical strength, etc., and has excellent reflectivity, thereby improving the durability of the liquid crystal display device; the present invention It also relates to a backlight assembly of a liquid crystal display device in which all components are made of the same material, thereby effectively solving the heat problem of the backlight assembly and simplifying the manufacturing process. Background technique [0002] Unlike cathode ray tubes, generally, a liquid crystal display (LCD) device does not have a light emitting ...

Claims

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Application Information

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IPC IPC(8): G02F1/13357G02F1/1335
CPCG02F1/133604G02F1/133606G02F2203/02G02F1/133628
Inventor 李宪相金应秀李明世李奉根郭旻瀚孙先模
Owner LG CHEM LTD
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