公开(公告)号：US08564507B2

公开(公告)日：2013-10-22

申请号：US12973209

申请日：2010-12-20

申请人： Jin-Won Jang ,  Youngsup Kwon ,  Won Sik Oh ,  Min-Soo Choi

发明人： Jin-Won Jang ,  Youngsup Kwon ,  Won Sik Oh ,  Min-Soo Choi

IPC分类号： G09G3/30

CPC分类号： G09G3/342 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2360/16

摘要： A display apparatus includes a backlight unit which emits a light, and a display panel which receives the light to display an image. The backlight unit includes a driving circuit which outputs a driving voltage and a reference voltage; and p light source blocks connected to the driving circuit, p being a natural number greater than or equal to 2, where each light source block of the p light source blocks receives the driving voltage through a first terminal thereof and the reference voltage through a second terminal thereof to generate the light, and the p light source blocks are divided into a plurality of groups, each group including at least two light source blocks. The driving circuit includes a first switching section which applies the driving voltage to first terminals of the p light source blocks, and a second switching section which applies the reference voltage to the second terminal of at least one of the p light source blocks.

摘要翻译： 显示装置包括发光的背光单元和接收光以显示图像的显示面板。 背光单元包括输出驱动电压和参考电压的驱动电路; 和连接到驱动电路的p个光源块，p是大于或等于2的自然数，其中p个光源块的每个光源块通过其第一端接收驱动电压，并通过第二个第二端接收参考电压 端子以产生光，并且p个光源块被分成多个组，每个组包括至少两个光源块。 驱动电路包括对p个光源块的第一端施加驱动电压的第一开关部和向p个光源块中的至少一个的第二端施加基准电压的第二开关部。

公开(公告)号：US08531132B2

公开(公告)日：2013-09-10

申请号：US12902731

申请日：2010-10-12

申请人： Won-Sik Oh ,  Youngsup Kwon ,  Min-Soo Choi

发明人： Won-Sik Oh ,  Youngsup Kwon ,  Min-Soo Choi

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0893 ,  H05B37/036

摘要： A backlight unit includes a driving circuit, a plurality of light source strings, and an error detector. The driving circuit outputs a driving voltage. Each of the light source strings includes a plurality of light sources and receives the driving voltage through input terminals of the light source strings to generate a light. The error detector is connected to output terminals of the light source strings and senses voltages between the input terminals and the output terminals of the light source strings to detect an error in the light sources using a first voltage and a second voltage. The first voltage is a voltage difference between a maximum and a minimum of the sensed voltages and the second voltage is obtained by dividing one sensed voltage of the sensed voltages by a number of the light sources of a light source string from which the one sensed voltage is sensed.

摘要翻译： 背光单元包括驱动电路，多个光源串和误差检测器。 驱动电路输出驱动电压。 每个光源串包括多个光源，并且通过光源串的输入端接收驱动电压以产生光。 误差检测器连接到光源串的输出端，并感测输入端和光源串的输出端之间的电压，以使用第一电压和第二电压来检测光源中的误差。 第一电压是感测电压的最大值和最小值之间的电压差，并且第二电压是通过将感测电压的一个感测电压除以光源串的光源数量而获得的，其中一个感测电压 被感测。

公开(公告)号：US08963443B2

公开(公告)日：2015-02-24

申请号：US13219322

申请日：2011-08-26

申请人： Min-Soo Choi ,  Jin-Won Jang ,  Won-Sik Oh

发明人： Min-Soo Choi ,  Jin-Won Jang ,  Won-Sik Oh

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0827

摘要： A light source apparatus includes a plurality of light source parts, a power supply part, a current selection part and a current control part. The plurality of the light source parts are connected in parallel and the power supply part provides power to a first terminal of each of the light source parts. The current selection part selects the current level of one of the light source parts as a reference current level. The current control part adjusts the levels of the currents flowing through the light source parts to be substantially equal to the reference current level. Selection of the light source part that provides the reference current level is dynamically changed.

摘要翻译： 光源装置包括多个光源部，电源部，电流选择部和电流控制部。 多个光源部并联连接，电源部向每个光源部的第一端子供电。 当前选择部分选择一个光源部分的当前电平作为参考电流电平。 电流控制部分调节流过光源部分的电流的电平基本上等于参考电流电平。 动态地改变提供参考电流电平的光源部分的选择。

公开(公告)号：US08314768B2

公开(公告)日：2012-11-20

申请号：US12705608

申请日：2010-02-14

申请人： Min-Soo Choi ,  Hwanwoong Lee ,  Won Sik Oh

发明人： Min-Soo Choi ,  Hwanwoong Lee ,  Won Sik Oh

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G3/006

摘要： A backlight unit includes light source groups, a converter, a compensator, a detector and a protector. Each of the light source groups includes a light source, and the converter boosts an input voltage to a driving voltage that is supplied to the light source groups. The compensator is connected to the light source groups and compensates a deviation between currents fed back to the compensator from each of the light source groups. The detector is connected between the compensator and the light source groups and detects a maximum voltage from among feedback voltages fed back to the compensator from each of the light source groups. The protector is connected to the detector and receives the maximum voltage, and compares the maximum voltage to a reference voltage to generate a compared result. The protector outputs a protection signal to the converter based on the compared result.

摘要翻译： 背光单元包括光源组，转换器，补偿器，检测器和保护器。 每个光源组包括光源，并且转换器将输入电压升压到提供给光源组的驱动电压。 补偿器连接到光源组并补偿从每个光源组反馈到补偿器的电流之间的偏差。 检测器连接在补偿器和光源组之间，并检测从每个光源组反馈给补偿器的反馈电压中的最大电压。 保护器连接到检测器并接收最大电压，并将最大电压与参考电压进行比较，以产生比较结果。 保护器根据比较结果向转换器输出保护信号。

公开(公告)号：US08283871B2

公开(公告)日：2012-10-09

申请号：US12764277

申请日：2010-04-21

申请人： Won-SiK Oh ,  Moon-Shik Kang ,  Young-Sup Kwon ,  Hwan-Woong Lee ,  Min-Soo Choi ,  Byeong-Hwan Kim

发明人： Won-SiK Oh ,  Moon-Shik Kang ,  Young-Sup Kwon ,  Hwan-Woong Lee ,  Min-Soo Choi ,  Byeong-Hwan Kim

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0827

摘要： A method of driving a light source apparatus includes inverting a direct current voltage to generate a first alternating current voltage, transforming the first alternating current voltage into a second alternating current voltage having a voltage level that is greater than a voltage level of the first alternating current voltage, compensating a driving alternating current voltage based on the second alternating current voltage to generate a compensated driving alternating current voltage such that a substantially equal current flows through each light emitting string of a plurality of light emitting string included in the light source apparatus, and rectifying the compensated driving alternating current voltage to apply a driving voltage to the light emitting strings.

摘要翻译： 一种驱动光源装置的方法包括使直流电压反相以产生第一交流电压，将第一交流电压转换成具有大于第一交流电压电平的电压电平的第二交流电压 电压，基于所述第二交流电压补偿驱动交流电压，以产生经补偿的驱动交流电压，使得基本相等的电流流过包括在所述光源装置中的多个发光串的每个发光串，以及 整流补偿的驱动交流电压以向驱动电压施加驱动电压。

公开(公告)号：US20110032179A1

公开(公告)日：2011-02-10

申请号：US12705608

申请日：2010-02-14

申请人： Min-Soo Choi ,  Hwanwoong Lee ,  Won Sik Oh

发明人： Min-Soo Choi ,  Hwanwoong Lee ,  Won Sik Oh

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G3/006

摘要： A backlight unit includes light source groups, a converter, a compensator, a detector and a protector. Each of the light source groups includes a light source, and the converter boosts an input voltage to a driving voltage that is supplied to the light source groups. The compensator is connected to the light source groups and compensates a deviation between currents fed back to the compensator from each of the light source groups. The detector is connected between the compensator and the light source groups and detects a maximum voltage from among feedback voltages fed back to the compensator from each of the light source groups. The protector is connected to the detector and receives the maximum voltage, and compares the maximum voltage to a reference voltage to generate a compared result. The protector outputs a protection signal to the converter based on the compared result.

摘要翻译： 背光单元包括光源组，转换器，补偿器，检测器和保护器。 每个光源组包括光源，并且转换器将输入电压升压到提供给光源组的驱动电压。 补偿器连接到光源组并补偿从每个光源组反馈到补偿器的电流之间的偏差。 检测器连接在补偿器和光源组之间，并检测从每个光源组反馈给补偿器的反馈电压中的最大电压。 保护器连接到检测器并接收最大电压，并将最大电压与参考电压进行比较，以产生比较结果。 保护器根据比较结果向转换器输出保护信号。

公开(公告)号：US09030459B2

公开(公告)日：2015-05-12

申请号：US13240228

申请日：2011-09-22

申请人： Jin-Won Jang ,  Min-Soo Choi ,  Young Sup Kwon

发明人： Jin-Won Jang ,  Min-Soo Choi ,  Young Sup Kwon

IPC分类号： G09G5/00 ,  H05B33/08 ,  G09G3/34 ,  G09G3/36

CPC分类号： H05B33/0857 ,  G09G3/342 ,  G09G3/3648 ,  G09G2320/0233 ,  G09G2320/064 ,  G09G2330/021 ,  H05B33/0815 ,  H05B33/0827

摘要： A backlight unit includes a DC-DC converter; a voltage control unit which controls output voltage of the DC-DC converter; a plurality of unit light emitting diode arrays; and current deviation compensating unit in connection with input terminals of the plurality of unit light emitting diode arrays. The current deviation compensating unit receives the controlled voltage of the voltage control unit and transfers a feedback signal to the voltage control unit based on the received voltage, and actively compensates a current deviation generated by electrical characteristics of the plurality of unit light emitting diode arrays and transfers the compensated current deviation to the input terminals of the plurality of unit light emitting diode arrays.

摘要翻译： 背光单元包括DC-DC转换器; 控制DC-DC转换器的输出电压的电压控制单元; 多个单位发光二极管阵列; 和电流偏差补偿单元，与多个单位发光二极管阵列的输入端相连。 电流偏差补偿单元接收电压控制单元的受控电压，并基于接收电压将反馈信号传送到电压控制单元，并且主动地补偿由多个单位发光二极管阵列的电特性产生的电流偏差，以及 将补偿的电流偏差传送到多个单位发光二极管阵列的输入端子。

公开(公告)号：US08704972B2

公开(公告)日：2014-04-22

申请号：US13181555

申请日：2011-07-13

申请人： Jin-Won Jang ,  Moon-Shik Kang ,  Young-Sup Kwon ,  Min-Soo Choi ,  Seung-Wan Kim

发明人： Jin-Won Jang ,  Moon-Shik Kang ,  Young-Sup Kwon ,  Min-Soo Choi ,  Seung-Wan Kim

IPC分类号： G02F1/1335

CPC分类号： H01R12/721 ,  G02F1/133603 ,  G02F2001/133612 ,  H01R12/737 ,  H01R13/74 ,  H05K1/117 ,  H05K3/366 ,  H05K2201/10189

摘要： A connector for a light source module includes a body portion and a terminal portion. The body portion includes a first opening portion and a second opening portion. The first opening portion receives a portion of the light source module. The second opening portion receives a portion of a light source driver which drives the light source module. The terminal portion includes a first terminal and a second terminal. The first terminal is in the first opening portion of the body portion. The second terminal is connected to the first terminal. The second terminal is in the second opening portion of the body portion.

摘要翻译： 用于光源模块的连接器包括主体部分和端子部分。 主体部分包括第一开口部分和第二开口部分。 第一开口部分接收光源模块的一部分。 第二开口部分接收驱动光源模块的光源驱动器的一部分。 端子部分包括第一端子和第二端子。 第一端子位于主体部分的第一开口部分中。 第二终端连接到第一终端。 第二端子位于主体部分的第二开口部分中。

公开(公告)号：US08030858B2

公开(公告)日：2011-10-04

申请号：US12262396

申请日：2008-10-31

申请人： Min-Soo Choi ,  Osamu Sengoku ,  Tatsuhisa Shimura

发明人： Min-Soo Choi ,  Osamu Sengoku ,  Tatsuhisa Shimura

IPC分类号： H05B37/00 ,  H05B39/00 ,  H05B41/00

CPC分类号： H05B41/282 ,  H05B41/2855 ,  Y02B20/183

摘要： An inverter circuit for a backlight device includes an inverter transformer which supplies a high AC voltage to a plurality of discharge tubes, a filter circuit connected to an output terminal of the inverter transformer, and an abnormal discharge detection circuit. The filter circuit passes a current signal having a high frequency component of the high AC voltage to the abnormal discharge detection circuit, and the abnormal discharge detection circuit detects an abnormal discharge current based on the current signal.

摘要翻译： 用于背光装置的逆变器电路包括向多个放电管提供高AC电压的逆变器变压器，连接到逆变器变压器的输出端子的滤波器电路和异常放电检测电路。 滤波器电路将具有高交流电压的高频分量的电流信号传送到异常放电检测电路，异常放电检测电路根据电流信号检测异常放电电流。

公开(公告)号：US20080258645A1

公开(公告)日：2008-10-23

申请号：US12058952

申请日：2008-03-31

申请人： Song-Yi Han ,  Min-Soo Choi ,  Jin-Taek Hong

发明人： Song-Yi Han ,  Min-Soo Choi ,  Jin-Taek Hong

IPC分类号： H05B41/16

CPC分类号： H05B41/2824 ,  Y02B20/186 ,  Y10S315/05

摘要： A backlight inverter includes a transformer boosting an input voltage at a ratio of a primary winding to a secondary winding of the transformer and outputting a first voltage and a second voltage; a protection level signal generator causing a phase delay between the first voltage and the second voltage, and generating a protection level signal, the protection level signal being a sum of the phase reversed first voltage and the second voltage; and an arc state detector comparing the protection level signal with a reference voltage and generating a detection signal; and a diving controller maintaining or stopping a supplying of an input voltage to the transformer in response to the detection signal, wherein in addition to the phase delay, another phase delay is caused by an open circuit in the transformer, so that a maximum value of the protection level signal is larger than the reference voltage and the input voltage is stopped.

摘要翻译： 背光源逆变器包括：变压器，其以初级绕组与变压器的次级绕组的比率升高输入电压，并输出第一电压和第二电压; 保护电平信号发生器，其引起所述第一电压和所述第二电压之间的相位延迟，并且产生保护电平信号，所述保护电平信号是相位反转的第一电压和所述第二电压的和; 以及电弧状态检测器，将保护电平信号与参考电压进行比较并产生检测信号; 以及潜水控制器，其响应于所述检测信号而保持或停止向所述变压器提供输入电压，其中除了所述相位延迟之外，另一相位延迟是由所述变压器中的开路引起的， 保护电平信号大于参考电压，输入电压停止。