公开(公告)号：US20090021179A1

公开(公告)日：2009-01-22

申请号：US12044683

申请日：2008-03-07

申请人： Jin Wook KIM ,  Dong Seong Oh ,  Jong Duck Kim ,  Sug Chin Sakong ,  Sung Soo Hong ,  Sang Kyoo Han ,  Chung Wook Roh ,  Dea Min Jang ,  Sung Ho Kim ,  Jin Woo Cho ,  Kwang Seung Cho

发明人： Jin Wook KIM ,  Dong Seong Oh ,  Jong Duck Kim ,  Sug Chin Sakong ,  Sung Soo Hong ,  Sang Kyoo Han ,  Chung Wook Roh ,  Dea Min Jang ,  Sung Ho Kim ,  Jin Woo Cho ,  Kwang Seung Cho

IPC分类号： H05B41/24

CPC分类号： H05B41/282 ,  H05B41/2822 ,  Y02B20/183

摘要： There is provided a backlight driving system for a liquid crystal display that can reduce size and weight of a product because a DC-DC converter is not used when commercial AC power is converted into lamp driving power. A backlight driving system for a liquid crystal display according to an aspect of the invention includes a power supply unit converting commercial alternating current (AC) power into direct current (DC) power having a voltage level set beforehand, an inverter unit converting the DC power from the power supply unit into AC power at a one-to-one conversion ratio set beforehand, a boosting unit boosting the AC power from the inverter unit into lamp lighting power set beforehand; and a lamp group receiving the lamp lighting power from the boosting unit to emit light.

摘要翻译： 提供了一种用于液晶显示器的背光驱动系统，其可以减小商品的尺寸和重量，因为当商业AC电力被转换成灯驱动功率时，不使用DC-DC转换器。 根据本发明的一个方面的用于液晶显示器的背光驱动系统包括将商用交流（AC）电力转换为预先设定的电压电平的直流（DC）电力的电源单元，将直流电力 从所述电源单元以预先设定的一对一转换比从所述电源单元输入到交流电力;升压单元，其将来自所述逆变器单元的交流电力提前预先设定为灯发光功率; 以及灯组，其从所述升压单元接收所述灯的点亮功率以发光。

公开(公告)号：US07663322B2

公开(公告)日：2010-02-16

申请号：US12044683

申请日：2008-03-07

申请人： Jin Wook Kim ,  Dong Seong Oh ,  Jong Duck Kim ,  Sug Chin Sakong ,  Sung Soo Hong ,  Sang Kyoo Han ,  Chung Wook Roh ,  Dea Min Jang ,  Sung Ho Kim ,  Jin Woo Cho ,  Kwang Seung Cho

发明人： Jin Wook Kim ,  Dong Seong Oh ,  Jong Duck Kim ,  Sug Chin Sakong ,  Sung Soo Hong ,  Sang Kyoo Han ,  Chung Wook Roh ,  Dea Min Jang ,  Sung Ho Kim ,  Jin Woo Cho ,  Kwang Seung Cho

IPC分类号： H05B41/16

CPC分类号： H05B41/282 ,  H05B41/2822 ,  Y02B20/183

摘要： There is provided a backlight driving system for a liquid crystal display that can reduce size and weight of a product because a DC-DC converter is not used when commercial AC power is converted into lamp driving power. A backlight driving system for a liquid crystal display according to an aspect of the invention includes a power supply unit converting commercial alternating current (AC) power into direct current (DC) power having a voltage level set beforehand, an inverter unit converting the DC power from the power supply unit into AC power at a one-to-one conversion ratio set beforehand, a boosting unit boosting the AC power from the inverter unit into lamp lighting power set beforehand; and a lamp group receiving the lamp lighting power from the boosting unit to emit light.

摘要翻译： 提供了一种用于液晶显示器的背光驱动系统，其可以减小商品的尺寸和重量，因为当商业AC电力被转换成灯驱动功率时，不使用DC-DC转换器。 根据本发明的一个方面的用于液晶显示器的背光驱动系统包括将商用交流（AC）电力转换为预先设定的电压电平的直流（DC）电力的电源单元，将直流电力 从所述电源单元以预先设定的一对一转换比从所述电源单元输入到交流电力;升压单元，其将来自所述逆变器单元的交流电力提前预先设定为灯发光功率; 以及灯组，其从所述升压单元接收所述灯的点亮功率以发光。

公开(公告)号：US08233297B2

公开(公告)日：2012-07-31

申请号：US12838077

申请日：2010-07-16

申请人： Jong Duck Kim ,  Chang Hee Lee

发明人： Jong Duck Kim ,  Chang Hee Lee

IPC分类号： H02M1/00 ,  G05F1/00

CPC分类号： H02M3/155 ,  H02M2001/007 ,  H05B33/0815 ,  H05B33/0851

摘要： There is provided a multi-stage power supply. A multi-stage power supply according to an aspect of the invention may include: a voltage converter circuit section including a plurality of first to n-th DC/DC converters connected in series between an input terminal and an output terminal, in order to supply a DC driving voltage to an LED array having a plurality of LEDs therein; a voltage detection section detecting an output voltage from the voltage converter circuit section; and a PWM control section generating a PWM control signal on the basis of a first detection voltage from the voltage detection section, a second detection voltage obtained by detecting current flowing through the LED array, and a third detection voltage obtained by detecting a current waveform flowing through an internal switch of the n-th DC/DC converter, and supplying the PWM control signal to each of the first through n-th DC/DC converters.

摘要翻译： 提供了多级电源。 根据本发明的一个方面的多级电源可以包括：电压转换器电路部分，包括串联连接在输入端子和输出端子之间的多个第一至第n个DC / DC转换器，以便提供 向其中具有多个LED的LED阵列的DC驱动电压; 检测来自所述电压转换电路部的输出电压的电压检测部; 以及PWM控制部，其基于来自电压检测部的第一检测电压生成PWM控制信号，通过检测流过LED阵列的电流而获得的第二检测电压，以及通过检测流过的电流波形而获得的第三检测电压 通过第n个DC / DC转换器的内部开关，并将PWM控制信号提供给第一至第n个DC / DC转换器。

公开(公告)号：US20110043510A1

公开(公告)日：2011-02-24

申请号：US12640288

申请日：2009-12-17

申请人： Jong Duck Kim ,  Ho Jae Lee

发明人： Jong Duck Kim ,  Ho Jae Lee

IPC分类号： G09G5/00

CPC分类号： G09G3/3696 ,  G09G2330/02

摘要： The invention relates to a power supply for a liquid crystal display using a light emitting diode for a backlight unit, and more particularly, to a power supply combining a DC power supply outside the liquid crystal display with a driving power supply inside the liquid crystal display into a single power supply. The power supply for a liquid crystal display according to an aspect of the invention may include: a power conversion section converting commercial AC power into at least one operating power having a predetermined voltage level through a switching operation; a backlight driving section switching the operating power from the power conversion section into backlight driving power; and a power switching control section controlling the switching operation of the power conversion section on the basis of a first feedback signal having a voltage level of the operating power from the power conversion section and a second feedback signal having a voltage level of the backlight driving power from the backlight driving section, wherein the power conversion section, the backlight driving section and the power switching control section are mounted on a single printed circuit board.

摘要翻译： 本发明涉及一种使用背光单元的发光二极管的液晶显示器的电源，更具体地，涉及将液晶显示器外部的直流电源与液晶显示器内的驱动电源组合的电源 成为单电源。 根据本发明的一个方面的用于液晶显示器的电源可以包括：功率转换部分，其通过切换操作将商用交流电转换成具有预定电压电平的至少一个操作功率; 背光驱动部，其将来自所述电力转换部的动力切换为背光驱动电力; 以及功率切换控制部，其基于来自功率转换部的工作电力的电压电平的第一反馈信号和具有背光驱动电力的电压电平的第二反馈信号，控制电力转换部的切换动作 其中电源转换部分，背光驱动部分和电源切换控制部分安装在单个印刷电路板上。

公开(公告)号：US08203278B2

公开(公告)日：2012-06-19

申请号：US12535387

申请日：2009-08-04

申请人： Jong Duck Kim ,  Jae Eun Kim ,  Ki Soo Kim

发明人： Jong Duck Kim ,  Jae Eun Kim ,  Ki Soo Kim

IPC分类号： H05B37/02 ,  G02F1/133

CPC分类号： H05B33/0815 ,  G09G2330/02 ,  H05B33/089 ,  H05K1/18

摘要： There is provided a power supply for a light emitting diode display using a light emitting diode as a backlight unit that unites a DC power supply provided from outside the light emitting diode display and a driving power supply provided inside the light emitting diode display. A power supply of a light emitting diode display according to an aspect of the invention may include: a power conversion unit converting commercial AC power into at least one driving power having a predetermined voltage level; and a backlight driving unit generating a backlight driving signal using the driving power from the power conversion unit, wherein the power conversion unit and the backlight driving unit are mounted onto one printed circuit board.

摘要翻译： 提供了一种使用发光二极管作为背光单元的发光二极管显示器的电源，该背光单元将从发光二极管显示器外部提供的直流电源与设置在发光二极管显示器内部的驱动电源相结合。 根据本发明的一个方面的发光二极管显示器的电源可以包括：功率转换单元，将商用AC电力转换成具有预定电压电平的至少一个驱动功率; 以及背光驱动单元，其使用来自所述电力转换单元的驱动电力产生背光驱动信号，其中所述电力转换单元和所述背光驱动单元安装在一个印刷电路板上。

公开(公告)号：US08441428B2

公开(公告)日：2013-05-14

申请号：US12640288

申请日：2009-12-17

申请人： Jong Duck Kim ,  Ho Jae Lee

发明人： Jong Duck Kim ,  Ho Jae Lee

IPC分类号： G09G5/00

CPC分类号： G09G3/3696 ,  G09G2330/02

摘要： The invention relates to a power supply for a liquid crystal display using a light emitting diode for a backlight unit, and more particularly, to a power supply combining a DC power supply outside the liquid crystal display with a driving power supply inside the liquid crystal display into a single power supply. The power supply for a liquid crystal display according to an aspect of the invention may include: a power conversion section converting commercial AC power into at least one operating power having a predetermined voltage level through a switching operation; a backlight driving section switching the operating power from the power conversion section into backlight driving power; and a power switching control section controlling the switching operation of the power conversion section on the basis of a first feedback signal having a voltage level of the operating power from the power conversion section and a second feedback signal having a voltage level of the backlight driving power from the backlight driving section, wherein the power conversion section, the backlight driving section and the power switching control section are mounted on a single printed circuit board.

摘要翻译： 本发明涉及一种使用背光单元的发光二极管的液晶显示器的电源，更具体地，涉及将液晶显示器外部的直流电源与液晶显示器内的驱动电源组合的电源 成为单电源。 根据本发明的一个方面的用于液晶显示器的电源可以包括：功率转换部分，其通过切换操作将商用交流电转换成具有预定电压电平的至少一个操作功率; 背光驱动部，其将来自所述电力转换部的动力切换为背光驱动电力; 以及功率切换控制部，其基于来自功率转换部的工作电力的电压电平的第一反馈信号和具有背光驱动电力的电压电平的第二反馈信号，控制电力转换部的切换动作 其中电源转换部分，背光驱动部分和电源切换控制部分安装在单个印刷电路板上。

公开(公告)号：US20120056544A1

公开(公告)日：2012-03-08

申请号：US13227123

申请日：2011-09-07

申请人： Nak Jun JEONG ,  Jae Eun Kim ,  Jong Duck Kim ,  Kwang Hee Sung

发明人： Nak Jun JEONG ,  Jae Eun Kim ,  Jong Duck Kim ,  Kwang Hee Sung

IPC分类号： H05B37/02

CPC分类号： H05B33/089 ,  H05B33/0824 ,  Y02B20/341

摘要： An apparatus for driving a light emitting device includes: a current control unit generating a current control signal according to a preset current setting value; a constant current circuit unit varying a current resistance value according to the current control signal of the current control unit, detecting a current flowing in a light emitting unit including a plurality of emitting devices by using the current resistance value, and controlling the current flowing in the light emitting unit based on the detected current; and a voltage control unit varying a voltage resistance value according to a preset voltage setting value, detecting a voltage supplied to the light emitting unit by using the voltage resistance value, and determining whether or not the voltage is in an over-voltage state, based on the detected voltage.

摘要翻译： 一种用于驱动发光装置的装置，包括：电流控制单元，根据预设的当前设定值产生电流控制信号; 恒流电路单元根据电流控制单元的电流控制信号改变电流电阻值，通过使用电流电阻值检测在包括多个发光器件的发光单元中流动的电流，并控制流过的电流 所述发光单元基于所检测的电流; 以及电压控制单元，根据预设电压设定值改变电压电阻值，通过使用电压电阻值检测供给到发光单元的电压，并基于电压是否处于过电压状态 检测电压。