公开(公告)号：KR1020040000974A

公开(公告)日：2004-01-07

申请号：KR1020020036018

申请日：2002-06-26

Applicant: 삼성전자주식회사

Inventor： 강성용 ,  이정환 ,  박종대 ,  강문식 ,  이근우 ,  윤상혁 ,  유형석 ,  정재호 ,  김규석

IPC: G02F1/13357

CPC classification number: G02F1/133611 ,  F21V5/02 ,  G02B6/0051 ,  G02F1/133604 ,  G02F2001/133607

Abstract: PURPOSE: A back light assembly and a direct type liquid crystal display having the same are provided to equalize brightness of first lights emitted from lamps by an optical path changing layer, thereby improving the uniformity of brightness of a back light assembly. CONSTITUTION: At least one or more lamps(310) are provided to generate first lights. A light diffusion plate(330) includes a diffusion layer diffusing the first lights, and an optical path changing layer protruded from one plane of the diffusing layer for changing paths of the first lights, so that the light diffusion plate emit the first lights as second lights having uniform brightness distribution. The optical path changing layer includes at least one or more protrusions including first optical path changing planes inclined at a first angle from an incident plane, and second optical path changing planes inclined at a second angle from the incident plane.

Abstract translation: 目的：提供背光组件和具有该背光组件的直接型液晶显示器，以通过光路改变层来均衡由灯发出的第一光的亮度，从而提高背光组件的亮度的均匀性。 构成：提供至少一个或多个灯（310）以产生第一灯。 光漫射板（330）包括扩散第一光的扩散层和从扩散层的一个平面突出的光路改变层，用于改变第一光的路径，使得光扩散板以第二光发射第一光 具有均匀亮度分布的灯。 光路改变层包括至少一个或多个突起，其包括从入射平面倾斜第一角度的第一光路改变平面和从入射平面以第二角度倾斜的第二光路改变平面。

公开(公告)号：KR1020040000802A

公开(公告)日：2004-01-07

申请号：KR1020020035753

申请日：2002-06-25

Applicant: 삼성전자주식회사

Inventor： 강문식 ,  이인성 ,  한송이

IPC: G02F1/13357

CPC classification number: G09G3/36 ,  G09G3/2014 ,  G09G3/3406 ,  G09G2310/0235 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2320/064

Abstract: PURPOSE: A device for driving a back light is provided to grasp a state of a lamp by detecting the size of a current that flows through a lamp without installing the leading wire for feeding back the current directly to an inverter PCB(Printed Circuit Board). CONSTITUTION: A lamp unit(600) includes a lamp(601) and an electric condenser(C1). A transformer(T1) is connected to the lamp unit for supplying a current which turns on the lamp. An oscillator(200) is connected with primary coils(L11,L12) of the transformer for supplying an alternating current. A current detector(300) detects a current flowing through the oscillator or the primary coils of the transformer. A switching unit(Tr1) switches an external current for supplying the same to the transformer and the oscillator. A pulse width modulator(400) controls the switching unit according to the signal and a dimming control signal.

Abstract translation: 目的：提供一种用于驱动背光的装置，通过检测流过灯的电流的尺寸来掌握灯的状态，而不安装用于将电流直接馈送到逆变器PCB（印刷电路板）的引线， 。 构成：灯单元（600）包括灯（601）和电冷凝器（C1）。 变压器（T1）连接到灯单元，用于提供接通灯的电流。 振荡器（200）与变压器的初级线圈（L11，L12）连接，用于提供交流电。 电流检测器（300）检测流经振荡器或变压器初级线圈的电流。 开关单元（Tr1）将外部电流切换到变压器和振荡器。 脉冲宽度调制器（400）根据该信号和调光控制信号来控制切换单元。

公开(公告)号：KR1020030097508A

公开(公告)日：2003-12-31

申请号：KR1020020034906

申请日：2002-06-21

Applicant: 삼성전자주식회사

Inventor： 강문식 ,  이인성 ,  한송이

IPC: G02F1/133

CPC classification number: G02F1/133 ,  G09G3/3406 ,  G09G3/3614 ,  H05B41/24

Abstract: PURPOSE: An LCD backlight is provided to control the illumination of respective lamps connected to a single inverter circuit by using switching elements connected to cold terminals of the lamps and control switching states of the switching elements according to control signals synchronized with graphic information, thereby realizing the impulse type driving. CONSTITUTION: An LCD backlight includes an inverter(1), a capacitor(C), and first and second lamps(2,3). The respective lamps have cold terminals connected to two parallel resistors(R1,R2/R3,R4). Switching elements(SW1,SW2) are respectively connected to paths positioned by the resistors. The switching elements are controlled by on/off signals output from a timing control IC and synchronized with graphic information.

Abstract translation: 目的：提供LCD背光，通过使用连接到灯的冷端的开关元件和根据与图形信息同步的控制信号来控制开关元件的开关状态来控制连接到单个逆变器电路的各个灯的照明，从而实现 脉冲式驾驶。 构成：LCD背光源包括逆变器（1），电容器（C）和第一和第二灯（2,3）。 相应的灯具有冷端子连接到两个并联电阻器（R1，R2 / R3，R4）。 开关元件（SW1，SW2）分别连接到由电阻器定位的路径。 开关元件由来自定时控制IC输出的开/关信号控制，并与图形信息同步。

公开(公告)号：KR1020030089299A

公开(公告)日：2003-11-21

申请号：KR1020020027461

申请日：2002-05-17

Applicant: 삼성전자주식회사

Inventor： 유형석 ,  강성철 ,  강문식 ,  이정환 ,  이근우

IPC: G02F1/133

CPC classification number: H05B41/2824 ,  G02F1/133604 ,  G02F2001/133612 ,  H01J65/046 ,  Y02B20/186

Abstract: PURPOSE: A backlight assembly for an external electrode fluorescent lamp, a method for driving the same, and a liquid crystal display with the same are provided to drive EEFL(External Electrode Fluorescent Lamp)s having external electrodes on both sides or EIFL(External Inner electrode Fluorescent Lamp)s having external electrodes on one side with maintaining constant current. CONSTITUTION: A power transistor(Q1) controls output of direct current power supply inputted through a second terminal in response to a switching signal inputted through a first terminal. A diode(D1) has a cathode terminal connected with a third terminal of the power transistor and a grounded anode terminal for interrupting inrush current rushed into the power transistor. An inverter(120) has one end connected with the third terminal of the power transistor for converting direct current into alternating current and boosts the voltage of the converted alternating power supply for supplying the same to a fluorescent lamp. A pulse width modulation control unit(140) is started by on and off signals for providing the switching signal for adjusting a level of the alternating power to be provided to the fluorescent lamp.

Abstract translation: 目的：提供一种用于外部电极荧光灯的背光组件，其驱动方法及其液晶显示器，以驱动在两侧具有外部电极的EEFL（外部电极荧光灯）或EIFL（外部内部 电极荧光灯）在一侧具有保持恒定电流的外部电极。 构成：响应于通过第一端子输入的开关信号，功率晶体管（Q1）控制通过第二端子输入的直流电源的输出。 二极管（D1）具有与功率晶体管的第三端子连接的阴极端子和用于中断涌入功率晶体管的浪涌电流的接地阳极端子。 逆变器（120）的一端与功率晶体管的第三端连接，用于将直流电转换为交流电流，并将转换后的交流电源的电压升压至荧光灯。 脉宽调制控制单元（140）通过用于提供用于调节要提供给荧光灯的交流电力的电平的开关信号的开和关信号而启动。

公开(公告)号：KR100870007B1

公开(公告)日：2008-11-21

申请号：KR1020020035753

申请日：2002-06-25

Applicant: 삼성전자주식회사

Inventor： 강문식 ,  이인성 ,  한송이

IPC: G02F1/13357

CPC classification number: G09G3/36 ,  G09G3/2014 ,  G09G3/3406 ,  G09G2310/0235 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2320/064

Abstract: 본 발명의 백라이트 구동 장치는 광원에 전류를 공급하는 전류 공급부, 상기 전류 공급부에서 출력되는 전류를 검출하는 전류 감지기, 그리고 상기 전류 감지기로부터의 신호와 외부에서 인가되는 디밍 제어 신호에 따라 상기 전류 공급부에 공급되는 신호를 제어하는 광원 제어부를 포함한다. 따라서 광원에 흐르는 전류를 구동 장치에 피드백하는 도선을 따로 설치하지 않고도 광원에 흐르는 전류의 크기를 감지한다. 그로 인해 각 광원에 대한 제어를 적절히 수행하여 백라이트의 수명을 연장시킬 수 있고, 광원의 상태가 비정상적일 때 광원에 인가되는 전류를 차단하므로 안전성이 향상된다.
액정표시장치, LCD, 직하형 백라이트, 인버터, 셧다운, 병렬구동

公开(公告)号：KR100857848B1

公开(公告)日：2008-09-10

申请号：KR1020020027461

申请日：2002-05-17

Applicant: 삼성전자주식회사

Inventor： 유형석 ,  강성철 ,  강문식 ,  이정환 ,  이근우

IPC: G02F1/133

CPC classification number: H05B41/2824 ,  G02F1/133604 ,  G02F2001/133612 ,  H01J65/046 ,  Y02B20/186

Abstract: 무전극 유리관의 일측 또는 양측에 관외전극을 각각 형성한 복수의 관외전극 형광램프를 병렬 연결하여 정전류를 유지하면서 구동하기 위한 백라이트 어셈블리와 이의 구동 방법과 이를 갖는 액정 표시 장치를 개시한다. 파워 스위칭 소자는 제1단을 통해 입력되는 스위칭 신호에 응답하여 제2단을 통해 입력되는 직류전원의 출력을 제어하고, 다이오드는 캐소드단이 파워 스위칭 소자의 제3단에 연결되고, 애노드단이 접지되어 파워 스위칭 소자에 돌입되는 돌입 전류를 차단하며, 인버터는 일단이 스위칭 소자의 제3단에 연결되어 직류전원을 교류전원으로 변환하고, 변환된 교류전원을 승압하여 형광램프에 제공하고, 펄스폭 변조 제어부는 외부로부터 제공되는 온/오프 신호에 의해 기동됨에 따라 형광램프에 공급하는 교류전원 레벨의 조정을 위한 스위칭 신호를 파워 스위칭 소자에 제공하는 펄스폭 변조 제어부를 포함하여 이루어진다.
액정, 램프, 병렬, 외부전극, 관외전극, 펄스폭, 위상차

公开(公告)号：KR1020080044984A

公开(公告)日：2008-05-22

申请号：KR1020060113863

申请日：2006-11-17

Applicant: 삼성전자주식회사

Inventor： 강문식

IPC: H05B41/24 ,  H05B41/30 ,  H05B41/14 ,  G02F1/13357

CPC classification number: H05B41/2827 ,  G09G3/3406 ,  G09G2320/064 ,  H05B41/2828

Abstract: A lamp driving circuit and a display apparatus having the same are provided to reduce the number of switching elements by boosting a first driving voltage defined by a potential difference between first and second square wave voltages to a second driving voltage and applying the boosted second driving voltage to a lamp. A lamp driving circuit(100) includes a first voltage generation unit(110), a second voltage unit(120), and a transformer(130). The first voltage generation unit receives direct current voltage and outputs a first square wave voltage in response to a first switching signal and a second switching signal having an inverted phase of the first switching signal. The second voltage generation unit receives the direct current voltages and outputs a second square wave voltage in response to a third switching signal shifted by a predetermined phase from the first switching signal and a fourth switching signal having an inverted phase of the third switching signal. The transformer boosts a first driving voltage defined by a potential difference between the first and second square wave voltages to a second driving voltage having a voltage level higher than that of the first driving voltage by receiving each of the first and second square wave voltages through first and second input terminals and applies the boosted voltage to a lamp.

Abstract translation: 提供一种灯驱动电路及其显示装置，用于通过将由第一和第二方波电压之间的电位差限定的第一驱动电压升压到第二驱动电压来减小开关元件的数量，并将升压的第二驱动电压 到一盏灯 灯驱动电路（100）包括第一电压产生单元（110），第二电压单元（120）和变压器（130）。 第一电压产生单元接收直流电压并且响应于第一开关信号和具有第一开关信号的反相的第二开关信号而输出第一方波电压。 第二电压产生单元接收直流电压并响应于从第一开关信号偏移预定相位的第三开关信号和具有第三开关信号的反相的第四开关信号输出第二方波电压。 变压器通过首先接收第一和第二方波电压中的每一个，将由第一和第二方波电压之间的电位差定义的第一驱动电压提升到具有比第一驱动电压的电压高的电压电平的第二驱动电压 和第二输入端子，并将升压电压施加到灯。

公开(公告)号：KR1020080042255A

公开(公告)日：2008-05-15

申请号：KR1020060110420

申请日：2006-11-09

Applicant: 삼성전자주식회사

Inventor： 양유신 ,  전충삼 ,  김종안 ,  강문식 ,  김지혜

IPC: H01L21/66

CPC classification number: G06T7/001 ,  G06T2207/10056 ,  G06T2207/20056 ,  G06T2207/30148

Abstract: A method and an apparatus for detecting pattern defects are provided to obtain an image whose frequency region is removed due to a periodic pattern by performing a Fourier transform on the image of the periodic pattern like a cell region and a low-pass filtering on the frequency region obtained through the Fourier transform. A first image of an examining region on a semiconductor substrate is acquired(S200). A Fourier transform and a low-pass filtering are performed to acquire a second image(S300). The Fourier transform converts a space region into a frequency region with respect to the first image. The low-pass filtering is performed to preserve a low frequency region in the frequency region and to attenuate a high frequency region. The second image is compared with a pre-set reference image to detect defects of the examining region(S400). The examining region includes a periodic pattern. Before the first image is acquired, the reference image is set.

Abstract translation: 提供一种用于检测图案缺陷的方法和装置，以通过对像周期性图案的图像进行傅立叶变换来获得由于周期性图案而去除其频率区域的图像，如同频率区域和频率上的低通滤波 通过傅立叶变换获得的区域。 获取半导体基板上的检查区域的第一图像（S200）。 执行傅里叶变换和低通滤波以获取第二图像（S300）。 傅里叶变换将空间区域相对于第一图像转换成频率区域。 执行低通滤波以保持频率区域中的低频区域并衰减高频区域。 将第二图像与预设参考图像进行比较以检测检查区域的缺陷（S400）。 检查区域包括周期性图案。 在获取第一张图像之前，设置参考图像。

公开(公告)号：KR1020080036438A

公开(公告)日：2008-04-28

申请号：KR1020060103031

申请日：2006-10-23

Applicant: 삼성전자주식회사

Inventor： 한송이 ,  강문식

IPC: G02F1/133 ,  G02F1/13357 ,  H05B41/24

CPC classification number: G09G3/3406 ,  G02F1/133604 ,  G09G3/006

Abstract: An inverter assembly, a backlight assembly having the same, and a method for detecting the fault of the backlight assembly are provided to check a state of a lamp in real time without forming a separate capacitor in the inverter assembly and manufacture the inverter assembly using a one-sided PCB(Printed Circuit Board), thereby controlling the operation of the backlight assembly and reducing the production cost of the inverter assembly. An inverter assembly comprises a lamp driving unit(250), a sensing line(230), and a control unit(260). The lamp driving unit is formed on an insulating substrate, converts a DC(Direct Current) voltage(VDC) supplied from the outside into an AC(Alternating Current) voltage(VAC) to generate a lamp driving voltage(VLD), and outputs the lamp driving voltage through at least one signal transmission line(220). The sensing line is spaced from the signal transmission line and is substantially formed in parallel, and induced electromotive force(VLD') is induced from the signal transmission line. The control unit is connected to the sensing line to receive the induced electromotive force and controls the operation of the lamp driving unit using the induced electromotive force.

Abstract translation: 提供一种逆变器组件，具有该逆变器组件的背光组件和用于检测背光组件的故障的方法，以在实际中检查灯的状态，而不在逆变器组件中形成单独的电容器，并使用 单面PCB（印刷电路板），从而控制背光组件的操作并降低逆变器组件的生产成本。 逆变器组件包括灯驱动单元（250），感测线（230）和控制单元（260）。 灯驱动单元形成在绝缘基板上，将从外部供给的DC（直流）电压（DCC）转换为AC（交流）电压（VAC）以产生灯驱动电压（VLD），并输出 灯驱动电压通过至少一个信号传输线（220）。 感测线与信号传输线隔开，基本上平行地形成，并且从信号传输线感应感应电动势（VLD'）。 控制单元连接到感测线以接收感应电动势，并且使用感应电动势来控制灯驱动单元的操作。

公开(公告)号：KR1020060116111A

公开(公告)日：2006-11-14

申请号：KR1020050038486

申请日：2005-05-09

Applicant: 삼성전자주식회사

Inventor： 강문식

IPC: G02F1/13357

CPC classification number: G02F1/133615 ,  G02F1/133524 ,  G02F2201/12

Abstract: A backlight assembly and an LCD comprising the same are provided to minimize the size of the LCD and reduce the manufacturing cost, by improving the connection structure of electrode lines of respective lamps. A lamp assembly(143) is composed of a plurality of lamps disposed in parallel. High voltage portions and grounding portions of respective lamps are alternately arranged. A light guiding plate(142) is positioned at a lateral surface of the lamp assembly, and guides the light emitted from the lamps. A container(160) has a sidewall formed along an edge of an upper surface thereof. The lamp assembly and the light guiding plate are placed within the sidewall of the container.

Abstract translation: 提供一种背光组件和包括该背光组件的LCD，以通过改善相应灯的电极线的连接结构来最小化LCD的尺寸并降低制造成本。 灯组件（143）由并排布置的多个灯组成。 各灯的高电压部分和接地部分交替布置。 导光板（142）位于灯组件的侧面，并引导从灯发出的光。 容器（160）具有沿着其上表面的边缘形成的侧壁。 灯组件和导光板被放置在容器的侧壁内。