公开(公告)号：KR1020080080272A

公开(公告)日：2008-09-03

申请号：KR1020080082267

申请日：2008-08-22

Applicant: 삼성전자주식회사

Inventor： 이인성 ,  강문식 ,  한송이

IPC: G02F1/133 ,  G09G3/36

CPC classification number: H02M1/4225 ,  G09G3/3406 ,  G09G3/36 ,  G09G2330/02 ,  H02M5/458 ,  H02M2001/007 ,  H02M2001/009 ,  H05B41/2822 ,  Y02B70/126 ,  Y10T307/406

Abstract: An LCD is provided to supply high voltage to a fluorescent lamp through simple circuit configuration and integrate an external DC power device adopted in a large LCD panel into the LCD panel. An LCD(Liquid Crystal Display) comprises an LCD panel driver, an LCD panel(850) and a backlight unit. A first power converter(300) is installed in an LCD module unit(800) including the LCD panel, and receives first AC(Alternating Current) power from the outside to rectify the first AC power and convert the first AC power into first DC(Direct Current) power. The first power converter converts the first DC power into second DC power higher than the first DC power. A second power converter(400) is installed in the LCD module unit, and converts the second DC power into second AC power so as to be suitable for the backlight unit. After that, the second power converter outputs the converted second AC power to the backlight unit. A third power converter(700) is installed in the LCD module unit, and converts the first DC power into plural third DC powers so as to be suitable for the LCD panel driver. After that, the third power converter outputs the converted plural third DC powers to the LCD panel driver.

Abstract translation: 提供LCD，通过简单的电路配置向荧光灯提供高电压，并将大型LCD面板中采用的外部直流电源设备集成到LCD面板中。 LCD（液晶显示器）包括LCD面板驱动器，LCD面板（850）和背光单元。 第一电力转换器（300）安装在包括LCD面板的LCD模块单元（800）中，并且从外部接收第一AC（交流）电力以对第一AC电力进行整流，并将第一AC电力转换为第一DC（ 直流电）电源。 第一功率转换器将第一DC功率转换成高于第一DC功率的第二DC功率。 第二电力转换器（400）安装在LCD模块单元中，并将第二DC电力转换为第二AC电力以适合于背光单元。 之后，第二电力转换器将转换的第二AC电力输出到背光单元。 第三电力转换器（700）安装在LCD模块单元中，并且将第一DC电力转换成多个第三DC电力以适合于LCD面板驱动器。 之后，第三电力转换器将转换的多个第三直流电力输出到LCD面板驱动器。

公开(公告)号：KR1020070005219A

公开(公告)日：2007-01-10

申请号：KR1020050060407

申请日：2005-07-05

Applicant: 삼성전자주식회사

Inventor： 한송이

IPC: G02F1/133

CPC classification number: G09G3/3406 ,  G09G2320/0633 ,  G09G2320/064

Abstract: An LCD is provided to use no plural complicated input pins for receiving dimming signals, thereby simplifying the constitution of a circuit, by receiving the dimming signals only through one input terminal. An input terminal(20) receives DC power from the outside. A first dimming circuit(40) and a second dimming circuit(50) control the voltage level of the DC power. A controller(30) outputs the DC power to the first dimming circuit if the voltage level of the DC power is lower than a reference level, and outputs the DC power to the second dimming circuit if the voltage level of the DC power is higher than the reference level.

Abstract translation: 提供了一个LCD，不用多个复杂的输入引脚来接收调光信号，从而通过仅通过一个输入端接收调光信号来简化电路的结构。 输入端子（20）从外部接收直流电力。 第一调光电路（40）和第二调光电路（50）控制直流电源的电压电平。 如果DC电源的电压低于参考电平，则控制器（30）将DC电力输出到第一调光电路，并且如果DC电力的电压电平高于基准电平，则将DC电力输出到第二调光电路 参考水平。

公开(公告)号：KR1020050064260A

公开(公告)日：2005-06-29

申请号：KR1020030095614

申请日：2003-12-23

Applicant: 삼성전자주식회사

Inventor： 한송이

IPC: G02F1/1333

Abstract: 들뜸 방지부를 가지는 평판 표시 장치가 개시된다. 제1 수납 용기는 평판 표시 패널을 수납하고, 제2 수납 용기는 제1 수납 용기와의 밀착을 위한 들뜸 방지부를 갖고서, 제1 수납 용기에 체결되어 평판 표시 패널을 수납한다. 이에 따라 제2 수납용기와 평판 표시 패널 사이에 틈이 생기는 것을 차단할 수 있다.

公开(公告)号：KR1020050015371A

公开(公告)日：2005-02-21

申请号：KR1020030054155

申请日：2003-08-05

Applicant: 삼성전자주식회사

Inventor： 한송이

IPC: G02F1/1335

Abstract: PURPOSE: A back light assembly is provided to allow an equal tube current to flow through lamps included in a lamp reflector by supplying different voltages to lamps adjacent to one face of the lamp reflector and lamps adjacent to two faces of the lamp reflector, to thereby prevent the life span of the lamps from being reduced. CONSTITUTION: A back light assembly(100) includes a light guide plate(110) having a light input part and a light output part, a plurality of lamps arranged in the light input part to project light, and a lamp reflector(130,132) for reflecting the light projected by the lamps to the light input part. The back light assembly further includes the first power supply for supplying the first voltage to lamps adjacent to one face of the lamp reflector, and the second power supply for supplying the second voltage to lamps adjacent to two faces of the lamp reflector.

Abstract translation: 目的：提供背光组件，以通过向邻近灯反射器的一个面和邻近灯反射器的两个面的灯提供不同的电压，使相等的管电流流过灯反射器中所包含的灯，由此 防止灯泡的使用寿命缩短。 背景技术背光组件（100）包括具有光输入部分和光输出部分的导光板（110），布置在光输入部分中以投射光的多个灯和用于投射光的灯反射器（130,132），用于 将由灯投射的光反射到光输入部。 背光组件还包括用于将第一电压提供给与灯反射器的一个面相邻的灯的第一电源，以及用于将第二电压提供给与灯反射器的两个面相邻的灯的第二电源。

公开(公告)号：KR1020030065219A

公开(公告)日：2003-08-06

申请号：KR1020020005731

申请日：2002-01-31

Applicant: 삼성전자주식회사

Inventor： 이인성 ,  강문식 ,  한송이

IPC: G02F1/133

CPC classification number: H05B41/2858 ,  G02F2001/133612 ,  Y02B20/186

Abstract: PURPOSE: A device for driving lamps and a liquid crystal display having the same are provided to prevent the lifespan of the lamps from being reduced due to current variation between the lamps when excessive current flows in a specific lamp. CONSTITUTION: A DC/DC(Direct Current to Direct Current) converter(10) converts DC voltage provided from the outside into a certain level of voltage. A DC/AC(Direct Current to Alternating Current) inverter(20) converts the converted DC voltage into AC voltage to be supplied to inputs of a plurality of lamps. A power control unit includes a plurality of lamp current sensing units(31,32,33,34) and a plurality of bypassing units(41,42,43,44). The lamp current sensing units check lamp current of the lamps through outputs of the lamps for controlling the voltage level conversion of the DC/DC converter. In the case that the checked lamp current of the lamps exceeds a threshold preliminarily set, the bypassing units bypass part of current supplied to the inputs of the lamps.

Abstract translation: 目的：提供一种用于驱动灯的装置和具有该装置的液晶显示器，以防止在特定的灯中过量的电流流动时灯的寿命由于灯之间的电流变化而被减小。 构成：直流/直流（直流直流）转换器（10）将从外部提供的直流电压转换成一定电压。 直流/交流（直流到交流电）逆变器（20）将转换的直流电压转换为交流电压以提供给多个灯的输入。 功率控制单元包括多个灯电流检测单元（31,32,33,34）和多个旁路单元（41,42,43,44）。 灯电流检测单元通过用于控制DC / DC转换器的电压电平转换的灯的输出来检查灯的灯电流。 在灯的检查的灯电流超过预先设定的阈值的情况下，旁路单元旁路供给到灯的输入的一部分电流。