公开(公告)号：KR20070113361A

公开(公告)日：2007-11-29

申请号：KR20060046090

申请日：2006-05-23

Applicant: LG PHILIPS LCD CO LTD

Inventor： KIM GYU SAM ,  LEE JEONG GEUN

IPC: G02F1/13357

CPC classification number: G02F1/133604 ,  G02B6/0025 ,  G02B6/0031 ,  G02F1/133611

Abstract: A backlight unit and an LCD(Liquid Crystal Display) device are provided to prevent the leakage of a tube current by forming equalized potential by a coil, which is connected to portions adjacent to the inverter of lamps while surrounding the portions and of which both ends are connected to a bottom cover, so that the lamps can maintain the same tube current irrespective of the position of the lamps and generate the uniform brightness by the same tube current. A backlight unit(50) has plural lamps(55), a bottom cover(52) and an optical member(54). One side part of the plurality of lamps is connected by a coil(57). The upper part of the bottom cover is opened and the lamps are arranged within the inner space. The optical member is arranged on the lamps. The coil is connected to the bottom cover. The one side part is a portion adjacent to an inverter.

Abstract translation: 提供了背光单元和LCD（液晶显示器）装置，以通过由线圈形成均衡电位来防止管电流泄漏，线圈连接到灯的逆变器附近的部分，同时围绕部分，并且其两端 连接到底盖，使得灯可以保持相同的管电流，而与灯的位置无关，并且通过相同的管电流产生均匀的亮度。 背光单元（50）具有多个灯（55），底盖（52）和光学构件（54）。 多个灯的一侧部分通过线圈（57）连接。 底盖的上部打开，灯被布置在内部空间内。 光学构件设置在灯上。 线圈连接到底盖。 一侧部分是与逆变器相邻的部分。

公开(公告)号：KR20070105569A

公开(公告)日：2007-10-31

申请号：KR20060037847

申请日：2006-04-26

Applicant: LG PHILIPS LCD CO LTD

Inventor： LEE JEONG GEUN

IPC: H05B41/02 ,  G02F1/1335

CPC classification number: G02F1/133385 ,  G02F1/133604 ,  H05B41/2822 ,  H05B41/2824 ,  H05B41/295

Abstract: An inverter and a liquid crystal display device having the same are provided to decrease heat generated at a transformer by forming a heat radiating unit on a printed circuit board to flow air by convection current. A liquid crystal display device includes a liquid crystal panel, at least one light emitting lamp, an inverter(110), and a printed circuit board(115). The at least one light emitting lamp supplies light to the liquid crystal panel. The inverter converts external voltage to supply the converted voltage to the light emitting lamp, and has at least one transformer(111). The printed circuit board mounts the inverter thereon, and has a heat radiating unit(120) at the lower part of the transformer. The light emitting lamp is selected from a group of a CCFL(Cold Cathode Fluorescent Lamp), an HCFL(Hot Cathode Fluorescence Lamp), an EL(Electro Luminescence) and an LED(Light Emitting Diode).

Abstract translation: 通过在印刷电路板上形成热辐射单元以通过对流流动空气来提供逆变器和具有该逆变器的液晶显示装置以减少在变压器处产生的热量。 液晶显示装置包括液晶面板，至少一个发光灯，逆变器（110）和印刷电路板（115）。 至少一个发光灯将光提供给液晶面板。 逆变器转换外部电压以将转换的电压提供给发光灯，并且具有至少一个变压器（111）。 印刷电路板在其上安装逆变器，并且在变压器的下部具有散热单元（120）。 发光灯选自CCFL（冷阴极荧光灯），HCFL（热阴极荧光灯），EL（电致发光）和LED（发光二极管））组。