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公开(公告)号：US09378701B2
公开(公告)日：2016-06-28
申请号：US14369935
申请日：2012-12-28
发明人： Hye Man Jung , Hyun Gu Kang , Oh Seok Kim , Young Eun Yang
CPC分类号： H05B33/0824 , G09G3/32 , G09G3/3696 , G09G2360/145 , H05B33/0815
摘要： A backlight driving apparatus that drives a backlight unit having a plurality of LEDs is provided, which includes a rectifying unit rectifying an AC voltage and generating a driving voltage for the plurality of LEDs, a plurality of connection changing units changing connection relations between the plurality of LEDs depending on a level of the driving voltage, and a light output compensation unit generating a compensation voltage using the driving voltage and selectively supplying the compensation voltage to the plurality of LEDs.
摘要翻译： 提供了一种驱动具有多个LED的背光单元的背光驱动装置，其包括整流单元，对整流电压进行整流，并产生多个LED的驱动电压;多个连接改变单元，其改变多个LED之间的连接关系 LED取决于驱动电压的电平，以及光输出补偿单元，其使用驱动电压产生补偿电压，并且选择性地将补偿电压提供给多个LED。
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2.发明申请BACKLIGHT MODULE, METHOD FOR DRIVING SAME AND DISPLAY DEVICE USING SAME 审中-公开背光模块，用于驱动它的方法和使用它的显示装置公开(公告)号：US20150154917A1
公开(公告)日：2015-06-04
申请号：US14367227
申请日：2012-12-21
发明人： Hye Man Jung , Oh Sug Kim , Hyun Gu Kang , II Kyung Suh , Young Eun Yang
CPC分类号： G09G3/342 , G09G2330/021 , H05B33/0815
摘要： A display device includes a power rectifying unit for rectifying alternating power, a power factor correction unit correcting the power factor of the alternating power and outputting a power factor corrected voltage containing a direct current voltage component having at least a predetermined size, a display module driven by the power factor corrected voltage, a backlight unit, and a driving unit supplying the main driving voltage to a backlight unit, receiving the power factor corrected voltage when the size of the rectified voltage is smaller than a preset threshold value to generate a supplementary driving voltage.
摘要翻译： 显示装置包括用于整流交流电力的功率整流单元，校正交流功率的功率因数的功率因数校正单元，并输出包含至少具有预定尺寸的直流电压分量的功率因数校正电压，驱动的显示模块 通过功率因数校正电压，背光单元和向背光单元提供主驱动电压的驱动单元，当整流电压的大小小于预设阈值时接收功率因数校正电压，以产生辅助驱动 电压。
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公开(公告)号：US10028344B2
公开(公告)日：2018-07-17
申请号：US15191811
申请日：2016-06-24
发明人： Hye Man Jung , Hyun Gu Kang , Oh Seok Kim , Young Eun Yang
摘要： A lighting apparatus includes a light-emitting diode (LED) array, a rectifying unit configured to rectify an alternating current (AC) voltage and to generate a driving voltage for the LED array, a switch control signal generation unit configured to generate a switching control signal depending on the driving voltage, the switching control signal including connection control signals and a compensation control signal, connection changing units configured to change a connection between the LEDs according to the connection control signals, and a light output compensation unit configured to generate a compensation voltage according to the compensation control signal, and selectively supply the compensation voltage to the LED array.
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公开(公告)号：US20170164435A1
公开(公告)日：2017-06-08
申请号：US15438737
申请日：2017-02-21
发明人： Hyung Jin LEE , Hyun Gu Kang , Sang Wook Han
IPC分类号： H05B33/08
CPC分类号： H05B33/0851 , H05B33/0809 , H05B33/0824 , H05B33/083 , H05B33/0845 , H05B39/044
摘要： An LED lighting apparatus according to exemplary embodiments includes a rectification circuit configured to rectify a modulated AC voltage to generate a drive voltage, an LED driving module connected to a plurality of LED groups and configured to apply a drive current to at least one of the plurality of LED groups according to a level of the drive voltage, and a dimming level detector configured to detect a dimming level corresponding to the drive voltage. The LED driving module is configured to compare the detected dimming level to a reference value and block the drive current based on a result of the comparison.
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5.发明申请公开(公告)号：US20150245427A1
公开(公告)日：2015-08-27
申请号：US14434031
申请日：2013-10-07
发明人： Hye Man Jung , Hyun Gu Kang , Sang Wook Han
IPC分类号： H05B33/08
CPC分类号： H05B33/083 , H05B33/0812 , H05B33/0824
摘要： Disclosed herein are a light emitting diode (LED) driving apparatus and driving method for continuously driving an LED. According to the present invention, an LED driving apparatus and driving method for continuously driving an LED capable of compensating for a light output of an LED lighting using an energy chargeable and dischargeable element and/or circuit are proposed.
摘要翻译： 这里公开了一种用于连续驱动LED的发光二极管（LED）驱动装置和驱动方法。 根据本发明，提出了一种LED驱动装置和驱动方法，用于使用能量可充放电元件和/或电路连续驱动能够补偿LED照明的光输出的LED。
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公开(公告)号：US09674912B2
公开(公告)日：2017-06-06
申请号：US14750580
申请日：2015-06-25
发明人： Young Do Jong , Hyun Gu Kang , Hye Man Jung , Kang Nyung Lee
IPC分类号： H05B33/08
CPC分类号： H05B33/083 , H01L2224/05554 , H01L2224/32225 , H01L2224/45139 , H01L2224/48091 , H01L2224/4813 , H01L2224/48137 , H01L2224/48227 , H01L2224/49113 , H01L2924/181 , H05B33/0803 , H05B33/0809 , H05B33/0818 , H05B33/0824 , Y02B20/347 , H01L2924/00014 , H01L2924/00 , H01L2924/00012 , H01L2924/00011
摘要： A light-emitting diode (LED) driving circuit configured to drive LED units includes a rectification circuit unit to receive an alternating current (AC) power voltage and rectify the AC power voltage to output a unidirectional ripple voltage, a pulse-width modulation (PWM) signal generation unit to generate PWM decision signals. The PWM signal generation unit is configured to sequentially drive the LEDs according to the PWM decision signals.
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7.发明授权LED driving circuit for continuously driving LED, LED lighting device comprising same and driving method 有权LED驱动电路，用于连续驱动LED，LED照明装置及其驱动方法公开(公告)号：US09585214B2
公开(公告)日：2017-02-28
申请号：US14753612
申请日：2015-06-29
发明人： Hye Man Jung , Hyun Gu Kang , Sang Wook Han
IPC分类号： H05B33/08
CPC分类号： H05B33/083 , H05B33/0824 , H05B33/0842 , H05B33/089
摘要： An exemplary embodiment discloses a light-emitting diode (LED) driving circuit including an LED driving module configured to provide a first driving voltage to an LED light emitting module including a first LED group to an n-th LED group, n is an integer which is equal to or larger than 2, and sequentially drive the first LED group to the n-th LED group depending on a voltage level of the first driving voltage and a second driving voltage providing module configured to store some of the first driving voltage and selectively provide a second driving voltage to some of the LED groups other than at least the first LED group to an m-th LED group among the LED groups in a Vfm compensation section, 1≦m≦n−1, according to a control of the LED driving module.
摘要翻译： 示例性实施例公开了一种发光二极管（LED）驱动电路，其包括LED驱动模块，其被配置为向包括第一LED组的LED发光模块提供第一驱动电压至第n个LED组，n为整数， 等于或大于2，并且根据第一驱动电压的电压电平依次驱动第一LED组到第n LED组，以及第二驱动电压提供模块，其被配置为存储第一驱动电压中的一些，并且选择性地 在Vfm补偿部分中的LED组中的至少第一LED组至第一LED组之间的一些LED组提供第二驱动电压，即1≤m≤n-1，根据 LED驱动模块
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8.发明授权公开(公告)号：US09357605B2
公开(公告)日：2016-05-31
申请号：US14434031
申请日：2013-10-07
发明人： Hye Man Jung , Hyun Gu Kang , Sang Wook Han
CPC分类号： H05B33/083 , H05B33/0812 , H05B33/0824
摘要： Disclosed herein are a light emitting diode (LED) driving apparatus and driving method for continuously driving an LED. According to the present invention, an LED driving apparatus and driving method for continuously driving an LED capable of compensating for a light output of an LED lighting using an energy chargeable and dischargeable element and/or circuit are proposed.
摘要翻译： 这里公开了一种用于连续驱动LED的发光二极管（LED）驱动装置和驱动方法。 根据本发明，提出了一种LED驱动装置和驱动方法，用于使用能量可充放电元件和/或电路连续驱动能够补偿LED照明的光输出的LED。
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公开(公告)号：US10080267B2
公开(公告)日：2018-09-18
申请号：US15317737
申请日：2015-06-04
发明人： Hyung Jin Lee , Hyun Gu Kang , Sang Wook Han
IPC分类号： H05B33/08
摘要： An AC-driven LED lighting apparatus includes: a triac dimmer to generate a modulated AC voltage by modulating a phase of AC power according to a selected level of dimming; a rectifying circuit to generate drive voltage by full-wave-rectifying the AC voltage having the phase modulated by the triac dimmer; a dimming level detector to detect a dimming level according to the drive voltage; a phase cut reference setting unit for setting a phase cut reference value; and a LED driving module for constant-current-controlling a plurality of LED groups by comparing the detected dimming level with the phase cut reference value, wherein the light emitting element driving module comprises a LED current blocking unit for blocking a drive current supplied to the plurality of LED groups when the dimming level is lower than the phase cut reference value.
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公开(公告)号：US09713213B2
公开(公告)日：2017-07-18
申请号：US15296836
申请日：2016-10-18
发明人： Hye Man Jung , Hyun Gu Kang , Snag Wook Han , Young Do Jung
CPC分类号： H05B33/083 , H05B33/0809 , H05B33/0812 , H05B33/0815 , H05B33/0824 , H05B33/0827 , H05B33/0845 , H05B33/0887 , H05B33/089
摘要： An LED luminescence apparatus is provided, which includes a rectifying unit rectifying an AC voltage and generating a rectified voltage; a plurality of LEDs connected in series to an output terminal of the rectifying unit; a plurality of switches having drain terminals connected to cathodes of the plurality of LEDs, respectively; and a switch control unit sensing current through a plurality of resistors connected to source terminals of the plurality of switches, respectively, comparing the sensed current with a set reference current, and outputting a voltage corresponding to a difference between the sensed current and the set reference current to a gate terminal of each of the plurality of switches.
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