公开(公告)号：US20080062105A1

公开(公告)日：2008-03-13

申请号：US11853631

申请日：2007-09-11

申请人： Song-Yi HAN ,  Tatsuhisa SHIMURA ,  Osamu SENGOKU

发明人： Song-Yi HAN ,  Tatsuhisa SHIMURA ,  Osamu SENGOKU

IPC分类号： G09G3/36 ,  G09G5/10

CPC分类号： H05B41/3927

摘要： A brightness adjusting device includes a multiplication circuit, which multiplies a vertical signal by a predetermined multiplication ratio to output a multiplication signal, a differential circuit that distinguishes between different multiplication signals, a serrated wave generator that charges/discharges a condenser according to a signal output from the differential circuit and generates a serrated wave having constant amplitude independently of a frequency of the multiplication signal, a brightness adjusting voltage generator that generates a reference voltage to determine a pulse duty, and a comparator that outputs a pulse signal by comparing a voltage of the serrated wave with the brightness adjusting voltage. The brightness adjusting voltage generator includes a circuit that outputs a variable voltage, and the multiplication circuit includes a circuit having a variable multiplication ratio.

摘要翻译： 亮度调节装置包括乘法电路，该乘法电路将垂直信号乘以预定乘法比率以输出乘法信号，区分不同乘法信号的差分电路，根据信号输出对冷凝器进行充放电的锯齿波发生器 从所述差分电路产生与所述乘法信号的频率无关的具有恒定幅度的锯齿波，生成参考电压以确定脉冲占空比的亮度调节电压发生器，以及比较器，通过比较所述脉冲占空比的电压 锯齿波具有亮度调节电压。 亮度调节电压发生器包括输出可变电压的电路，并且乘法电路包括具有可变倍率的电路。

公开(公告)号：US20080024073A1

公开(公告)日：2008-01-31

申请号：US11777450

申请日：2007-07-13

申请人： Hyeon-Yong JANG ,  Seong-Sik CHOI ,  Du-Hwan CHUNG ,  Moon-Shik KANG ,  Song-Yi HAN

发明人： Hyeon-Yong JANG ,  Seong-Sik CHOI ,  Du-Hwan CHUNG ,  Moon-Shik KANG ,  Song-Yi HAN

IPC分类号： H05B41/16

CPC分类号： H05B41/2851 ,  H05B41/2855

摘要： A lamp driving circuit includes: a voltage supply part including a first voltage supply part and a second voltage supply part; a first circuit part including a first terminal, a second terminal and a first coil; a second circuit part including a second coil electromagnetically coupled to the first coil and which supplies a voltage to a lamp; and an electric current detecting part which detects an electric current of the first coil and includes a detecting resistor and an electric current detector.

摘要翻译： 灯驱动电路包括：电压供给部，包括第一电压供给部和第二电压供给部; 包括第一端子，第二端子和第一线圈的第一电路部件; 第二电路部分，包括电磁耦合到所述第一线圈并向灯提供电压的第二线圈; 以及检测第一线圈的电流并且包括检测电阻器和电流检测器的电流检测部。

公开(公告)号：US20130038232A1

公开(公告)日：2013-02-14

申请号：US13346050

申请日：2012-01-09

申请人： Ju-Sung CHO ,  Song-Yi HAN ,  Kyun-Ho KIM ,  Seung-Young CHOI

发明人： Ju-Sung CHO ,  Song-Yi HAN ,  Kyun-Ho KIM ,  Seung-Young CHOI

IPC分类号： H05B37/02

CPC分类号： G09G3/3406 ,  G09G3/006 ,  G09G2330/02 ,  G09G2330/04

摘要： A light unit includes: an integrated power (“IP”) board which receives power supply and converts the power supply into a high voltage and a supply voltage; a lamp; and a terminal board (“T board”) which receives the high voltage from the IP board to turn on the lamp, receives the supply voltage from the IP board to transfer the supply voltage to the IP board, in which the IP board transfers the high voltage to the T board after the IP board receives the supply voltage from the T board.

摘要翻译： 光单元包括：集成电源（IP）板，其接收电源并将电源转换成高电压和电源电压; 一盏灯; 以及接收来自IP板的高电压以接通灯的端子板（T板），从IP板接收电源电压以将电源电压传送到IP板，其中IP板传输高电压 在IP板从T板接收电源电压之后到T板。

公开(公告)号：US20090015068A1

公开(公告)日：2009-01-15

申请号：US11933374

申请日：2007-10-31

申请人： Inn-Sung LEE ,  Moon-Shik KANG ,  Song-Yi HAN

发明人： Inn-Sung LEE ,  Moon-Shik KANG ,  Song-Yi HAN

IPC分类号： G02F1/133

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

摘要： Disclosed are a power supplying apparatus and a LCD having the same that reduces manufacturing cost of a large-scale LCD module and enhances power efficiency by integrating an external dc power supply used in a large-scale LCD panel into a LCD panel. A first voltage converter converts an external ac voltage into a first dc voltage, and changes a voltage level of the first dc voltage into a second dc voltage having a higher voltage level than that of the first dc voltage. A second voltage converter converts the second dc voltage into an ac voltage, raises a voltage level of the converted ac voltage, and provides the raised ac voltage to a load. A current detector detects a current flowing through the load, and provides a current detection signal as a feedback signal to the first voltage converter so that the first voltage provide a constant direct current output voltage.

摘要翻译： 公开了一种具有该功率供给装置和LCD的LCD，其通过将大型LCD面板中使用的外部直流电源集成到LCD面板中而降低大型LCD模块的制造成本并提高功率效率。 第一电压转换器将外部交流电压转换为第一直流电压，并将第一直流电压的电压电平改变为具有比第一直流电压更高的电压电平的第二直流电压。 第二电压转换器将第二直流电压转换为交流电压，提高转换交流电压的电压电平，并将升高的交流电压提供给负载。 电流检测器检测流过负载的电流，并将电流检测信号作为反馈信号提供给第一电压转换器，使得第一电压提供恒定的直流输出电压。

公开(公告)号：US20100181917A1

公开(公告)日：2010-07-22

申请号：US12573073

申请日：2009-10-02

申请人： Song-Yi HAN ,  Sung-Kyu Park ,  Yun-Gun Lee

发明人： Song-Yi HAN ,  Sung-Kyu Park ,  Yun-Gun Lee

IPC分类号： H05B37/00

CPC分类号： H05B41/282 ,  H05B41/2853 ,  Y02B20/186

摘要： According to one or more embodiments, an inverter provides a light source with an input voltage. A protection circuit shuts down the inverter based on an overvoltage protection level that is detected based on the input voltage. A protection circuit control part shuts down the operation of the protection circuit during a predetermined interval. Abnormal operation of the protection circuit caused by a high voltage provided when the light source is turned on may be prevented. Therefore, a turn-on defect of the light source may be prevented.

摘要翻译： 根据一个或多个实施例，逆变器为光源提供输入电压。 保护电路根据输入电压检测到的过电压保护电平关闭变频器。 保护电路控制部分在预定间隔期间关闭保护电路的操作。 可以防止当光源接通时提供的高电压引起的保护电路的异常操作。 因此，可以防止光源的导通缺陷。