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Background lighting unit of liquid crystal display

A technology of liquid crystal display and background lighting, which is applied in the direction of lighting devices, static indicators, lighting and heating equipment, etc., and can solve the problems of lamp 40 performance deterioration and the like

Inactive Publication Date: 2004-07-21
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] However, arranging the lamp 40 in the vertical direction of the light-emitting surface will cause the mercury in the tube of the lamp 40 to move to its bottom, which will cause the performance of the lamp 40 to deteriorate when the background lighting unit is used for a long time

Method used

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  • Background lighting unit of liquid crystal display
  • Background lighting unit of liquid crystal display
  • Background lighting unit of liquid crystal display

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Embodiment Construction

[0048] Preferred embodiments of the present invention shown in the accompanying drawings are described in detail below. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0049] The invention includes a plurality of lamps arranged in a staggered manner, the length of each lamp is significantly shorter than the length of the light-emitting surface of the background lighting unit, a common electrode member commonly connected to the external electrodes of the lamps arranged on the inner side, and a common electrode member for maintaining A fixing member for the inner lamp.

[0050] The background lighting unit of the present invention will be described below with reference to the accompanying drawings.

[0051] see Figure 5 , the background lighting unit of the present invention includes a plurality of lamps 50, and the opposite ends of a tube arranged staggeredly on the left and right sides of the entire li...

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Abstract

A backlight unit for a liquid crystal display device includes a plurality of lamps alternately arranged on at least two regions of a light emission surface, wherein each lamp has a length substantially shorter than that of the light emission surface, first, second, and third supports spaced apart from one another, wherein each support has a matching shape for mounting the lamps, a bottom support supporting the first, second, and third supports, and first, second, and third common electrodes respectively attached on the first, second, and third supports.

Description

[0001] This application claims the benefit of Korean Patent Application No. 2002-087871 filed on December 31, 2002, which is incorporated herein by reference. technical field [0002] The invention relates to a background lighting unit, in particular to a background lighting unit of a liquid crystal display. Although the invention is suitable for a wide range of applications, it is particularly suited to increasing lamp efficiency and enabling better wiring of lamps. Background technique [0003] Cathode ray tubes (CRTs), which are mainly used for monitors of TV receivers, measuring instruments, information terminals, etc., cannot meet the demand for reducing the size and weight of electronic products because they are bulky and large in size. [0004] Therefore, the size and weight of the CRT constitute a certain limit to the trend of miniaturization and light weight of electronic products. [0005] Devices expected to replace CRTs include liquid crystal displays (LCDs) usi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333F21S2/00F21V19/00F21Y103/00G02F1/13357
CPCG02F1/133604G02F1/1335
Inventor 文晶珉
Owner LG DISPLAY CO LTD
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