公开(公告)号：US08217592B2

公开(公告)日：2012-07-10

申请号：US12621775

申请日：2009-11-19

申请人： Ching-Chou Yu ,  Hung-Ching Lee ,  Po-Tang Hsu

发明人： Ching-Chou Yu ,  Hung-Ching Lee ,  Po-Tang Hsu

IPC分类号： H05B37/02

CPC分类号： H05B33/0818 ,  H05B33/0848 ,  Y02B20/347

摘要： A light emitting diode driving device and driving method thereof are provided. The light emitting diode driving device includes a duty cycle setup unit, a current setup unit, a control unit, and a light emitting diode driving circuit. The duty cycle setup unit is used for outputting duty cycle setup signal. The current set up unit is used for outputting a current setup signal. The control unit is used for receiving the duty cycle setup signal and the current setup signal, and outputting a current control signal and a duty cycle control signal in response to the duty cycle setup signal and the current setup signal. The light emitting diode driving circuit is used for driving at least one light emitting diode in response to the current control signal and the duty cycle control signal.

摘要翻译： 提供一种发光二极管驱动装置及其驱动方法。 发光二极管驱动装置包括占空比设置单元，当前设置单元，控制单元和发光二极管驱动电路。 占空比设置单元用于输出占空比设置信号。 当前设置单元用于输出当前设置信号。 控制单元用于接收占空比设置信号和当前设置信号，并且响应于占空比设置信号和当前设置信号输出电流控制信号和占空比控制信号。 发光二极管驱动电路用于响应于电流控制信号和占空比控制信号来驱动至少一个发光二极管。

公开(公告)号：US20100201282A1

公开(公告)日：2010-08-12

申请号：US12621775

申请日：2009-11-19

申请人： Ching-Chou Yu ,  Hung-Ching Lee ,  Po-Tang Hsu

发明人： Ching-Chou Yu ,  Hung-Ching Lee ,  Po-Tang Hsu

IPC分类号： H05B37/02

CPC分类号： H05B33/0818 ,  H05B33/0848 ,  Y02B20/347

摘要： A light emitting diode driving device and driving method thereof are provided. The light emitting diode driving device includes a duty cycle setup unit, a current setup unit, a control unit, and a light emitting diode driving circuit. The duty cycle setup unit is used for outputting duty cycle setup signal. The current set up unit is used for outputting a current setup signal. The control unit is used for receiving the duty cycle setup signal and the current setup signal, and outputting a current control signal and a duty cycle control signal in response to the duty cycle setup signal and the current setup signal. The light emitting diode driving circuit is used for driving at least one light emitting diode in response to the current control signal and the duty cycle control signal.

摘要翻译： 提供一种发光二极管驱动装置及其驱动方法。 发光二极管驱动装置包括占空比设置单元，当前设置单元，控制单元和发光二极管驱动电路。 占空比设置单元用于输出占空比设置信号。 当前设置单元用于输出当前设置信号。 控制单元用于接收占空比设置信号和当前设置信号，并且响应于占空比设置信号和当前设置信号输出电流控制信号和占空比控制信号。 发光二极管驱动电路用于响应于电流控制信号和占空比控制信号来驱动至少一个发光二极管。

公开(公告)号：US07956375B2

公开(公告)日：2011-06-07

申请号：US12485237

申请日：2009-06-16

申请人： Yueh-Han Li ,  Po-Tang Hsu ,  Chien-Ming Ko ,  Hung-Ching Lee ,  Chih-Wei Lin

发明人： Yueh-Han Li ,  Po-Tang Hsu ,  Chien-Ming Ko ,  Hung-Ching Lee ,  Chih-Wei Lin

IPC分类号： H01L29/22 ,  H01L29/227 ,  H01L33/00 ,  H01L31/0203

CPC分类号： H01L33/54 ,  H01L33/58

摘要： A light emitting diode structure and a light emitting diode structure forming method are provided. The light emitting diode structure includes a base, a diode chip, and a package lens. The diode chip is mounted on the base. The package lens covers the diode chip. The surface of the package lens includes a plurality of dot structures. The steps of the method include mounting a light-emitting diode chip on a base, assembling a package lens to cover the light emitting diodes chip, and forming a plurality of dot structures on the surface of the package lens.

摘要翻译： 提供了发光二极管结构和发光二极管结构形成方法。 发光二极管结构包括基座，二极管芯片和封装透镜。 二极管芯片安装在基座上。 封装透镜覆盖二极管芯片。 封装透镜的表面包括多个点结构。 该方法的步骤包括将发光二极管芯片安装在基座上，组装封装透镜以覆盖发光二极管芯片，以及在封装透镜的表面上形成多个点状结构。

公开(公告)号：US20100044732A1

公开(公告)日：2010-02-25

申请号：US12485237

申请日：2009-06-16

申请人： Yueh-Han Li ,  Po-Tang Hsu ,  Chien-Ming Ko ,  Hung-Ching Lee ,  Chih-Wei Lin

发明人： Yueh-Han Li ,  Po-Tang Hsu ,  Chien-Ming Ko ,  Hung-Ching Lee ,  Chih-Wei Lin

IPC分类号： H01L33/00 ,  H01L21/00

CPC分类号： H01L33/54 ,  H01L33/58

摘要： A light emitting diode structure and a light emitting diode structure forming method are provided. The light emitting diode structure includes a base, a diode chip, and a package lens. The diode chip is mounted on the base. The package lens covers the diode chip. The surface of the package lens includes a plurality of dot structures. The steps of the method include mounting a light-emitting diode chip on a base, assembling a package lens to cover the light emitting diodes chip, and forming a plurality of dot structures on the surface of the package lens.

摘要翻译： 提供了发光二极管结构和发光二极管结构形成方法。 发光二极管结构包括基座，二极管芯片和封装透镜。 二极管芯片安装在基座上。 封装透镜覆盖二极管芯片。 封装透镜的表面包括多个点结构。 该方法的步骤包括将发光二极管芯片安装在基座上，组装封装透镜以覆盖发光二极管芯片，以及在封装透镜的表面上形成多个点状结构。

公开(公告)号：US20120049750A1

公开(公告)日：2012-03-01

申请号：US13110154

申请日：2011-05-18

申请人： Dang-Ko Wang ,  Hung-Ching Lee ,  Ching-Chou Yu

发明人： Dang-Ko Wang ,  Hung-Ching Lee ,  Ching-Chou Yu

IPC分类号： H05B37/02

CPC分类号： H05B33/0827

摘要： An exemplary LED driving method is adapted for driving multiple LED strings. Each of the LED strings includes single one LED or multiple LEDs connected in series. In particular, the LED driving method includes steps of: obtaining an initial value of a duty-on period of a driving current in a frequency period to thereby acquire a target accumulative luminosity in the initial value of the duty-on period for each of the LED strings; and prolonging the duty-on period of the driving current in the frequency period and assuring an accumulative luminosity in the prolonged duty-on period to be substantially equal to the target accumulative luminosity for each of the LED strings, when the maximum one of the initial values of the duty-on periods of the driving currents in the frequency period for the LED strings is shorter than the frequency period.

摘要翻译： LED驱动方法适用于驱动多个LED串。 每个LED串包括串联连接的单个LED或多个LED。 特别地，LED驱动方法包括以下步骤：获得频率周期中的驱动电流的占空比周期的初始值，从而获得每个的每个的占空比期间的初始值的目标累积亮度 LED灯串; 并且在频率周期中延长驱动电流的占空比时间，并且在延长的占空比时间段中确保每个LED串的目标累积亮度基本上等于目标累积亮度的累积亮度，当最初的 LED串的频率周期中的驱动电流的占空比周期的值比频率周期短。

公开(公告)号：US08541956B2

公开(公告)日：2013-09-24

申请号：US13042946

申请日：2011-03-08

申请人： Hung-Ching Lee ,  Ching-Chou Yu ,  Sheng-Kai Hsu ,  Dang-Ko Wang

发明人： Hung-Ching Lee ,  Ching-Chou Yu ,  Sheng-Kai Hsu ,  Dang-Ko Wang

IPC分类号： H05B37/02

CPC分类号： H05B33/0851

摘要： A LED driving method includes steps of: providing a first pulse width modulation (PWM) signal for determining a brightness of a LED; obtaining a duty cycle of the first PWM signal; and selectively enabling the LED to work with a PWM dimming mode or a direct current (DC) dimming mode according to a relative relationship between a magnitude of the obtained duty cycle and a preset threshold value. Since the LED is performed with a two stage brightness control by use of mixed dimming mode, the driving efficiency of the LED can be improved.

摘要翻译： LED驱动方法包括以下步骤：提供用于确定LED的亮度的第一脉冲宽度调制（PWM）信号; 获得第一PWM信号的占空比; 以及根据所获得的占空比的幅度与预设的阈值之间的相对关系，选择性地使得LED能够以PWM调光模式或直流（DC）调光模式工作。 由于通过使用混合调光模式通过两级亮度控制来执行LED，因此可以提高LED的驱动效率。

公开(公告)号：US08604720B2

公开(公告)日：2013-12-10

申请号：US13110154

申请日：2011-05-18

申请人： Dang-Ko Wang ,  Hung-Ching Lee ,  Ching-Chou Yu

发明人： Dang-Ko Wang ,  Hung-Ching Lee ,  Ching-Chou Yu

IPC分类号： H05B37/02

CPC分类号： H05B33/0827

摘要： An exemplary LED driving method is adapted for driving multiple LED strings. Each of the LED strings includes single one LED or multiple LEDs connected in series. In particular, the LED driving method includes steps of: obtaining an initial value of a duty-on period of a driving current in a frequency period to thereby acquire a target accumulative luminosity in the initial value of the duty-on period for each of the LED strings; and prolonging the duty-on period of the driving current in the frequency period and assuring an accumulative luminosity in the prolonged duty-on period to be substantially equal to the target accumulative luminosity for each of the LED strings, when the maximum one of the initial values of the duty-on periods of the driving currents in the frequency period for the LED strings is shorter than the frequency period.

摘要翻译： LED驱动方法适用于驱动多个LED串。 每个LED串包括串联连接的单个LED或多个LED。 特别地，LED驱动方法包括以下步骤：获得频率周期中的驱动电流的占空比周期的初始值，从而获得每个的每个的占空比期间的初始值的目标累积亮度 LED灯串; 并且在频率周期中延长驱动电流的占空比时间，并且在延长的占空比时间段中确保每个LED串的目标累积亮度基本上等于目标累积亮度的累积亮度，当最初的 LED串的频率周期中的驱动电流的占空比周期的值比频率周期短。

公开(公告)号：US08084959B2

公开(公告)日：2011-12-27

申请号：US12356546

申请日：2009-01-21

申请人： Ching-Chou Yu ,  Chien-Ming Ko ,  Yueh-Han Li ,  Hung-Ching Lee

发明人： Ching-Chou Yu ,  Chien-Ming Ko ,  Yueh-Han Li ,  Hung-Ching Lee

IPC分类号： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

CPC分类号： H05B33/0818 ,  G09G3/3426 ,  G09G2320/064 ,  H05B33/0857 ,  Y02B20/346

摘要： A light emitting diode (LED) backlight module, a driving apparatus and a driving method thereof are provided. The driving apparatus is adapted to drive at least one LED of at least one lighting unit within the LED backlight module. The driving apparatus includes a latch unit and a switch unit. The latch unit is used for receiving a control backlight data and latching the control backlight data during a frame period according to a trigger signal, so as to output a control signal. The switch unit is coupled to the latch unit and the LED for receiving the control signal to determine whether the LED emits or not.

摘要翻译： 提供了一种发光二极管（LED）背光模块，驱动装置及其驱动方法。 所述驱动装置适于驱动所述LED背光模块内的至少一个照明单元的至少一个LED。 驱动装置包括闩锁单元和开关单元。 闩锁单元用于接收控制背光数据，并且根据触发信号在帧周期期间锁存控制背光数据，以便输出控制信号。 开关单元耦合到锁存单元和用于接收控制信号的LED，以确定LED是否发光。

公开(公告)号：US20100134039A1

公开(公告)日：2010-06-03

申请号：US12356546

申请日：2009-01-21

申请人： Ching-Chou Yu ,  Chien-Ming Ko ,  Yueh-Han Li ,  Hung-Ching Lee

发明人： Ching-Chou Yu ,  Chien-Ming Ko ,  Yueh-Han Li ,  Hung-Ching Lee

IPC分类号： H05B41/36

CPC分类号： H05B33/0818 ,  G09G3/3426 ,  G09G2320/064 ,  H05B33/0857 ,  Y02B20/346

摘要： A light emitting diode (LED) backlight module, a driving apparatus and a driving method thereof are provided. The driving apparatus is adapted to drive at least one LED of at least one lighting unit within the LED backlight module. The driving apparatus includes a latch unit and a switch unit. The latch unit is used for receiving a control backlight data and latching the control backlight data during a frame period according to a trigger signal, so as to output a control signal. The switch unit is coupled to the latch unit and the LED for receiving the control signal to determine whether the LED emits or not.

摘要翻译： 提供了一种发光二极管（LED）背光模块，驱动装置及其驱动方法。 所述驱动装置适于驱动所述LED背光模块内的至少一个照明单元的至少一个LED。 驱动装置包括闩锁单元和开关单元。 闩锁单元用于接收控制背光数据，并且根据触发信号在帧周期期间锁存控制背光数据，以便输出控制信号。 开关单元耦合到锁存单元和用于接收控制信号的LED，以确定LED是否发光。

公开(公告)号：US20110156603A1

公开(公告)日：2011-06-30

申请号：US12952607

申请日：2010-11-23

申请人： Chien-Ming KO ,  Yueh-Han Li ,  Sheng-Kai Hsu ,  Hung-Ching Lee

发明人： Chien-Ming KO ,  Yueh-Han Li ,  Sheng-Kai Hsu ,  Hung-Ching Lee

IPC分类号： H05B37/02

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  H05B33/0818 ,  H05B33/0827 ,  H05B33/089

摘要： An exemplary light-emitting diode (LED) driving circuit includes a LED driving IC, at least a LED string and at least a resistor. The LED string each is electrically coupled between a power source voltage and a control terminal of the LED driving IC and whereby a driving current of the LED string is subjected to the control of the LED driving IC. The resistor each is electrically coupled to between the control terminal and a predetermined potential. Moreover, a LED driving method also is provided.

摘要翻译： 示例性的发光二极管（LED）驱动电路包括LED驱动IC，至少LED串和至少一个电阻器。 LED串各自电连接在LED驱动IC的电源电压和控制端子之间，由此对LED串的驱动电流进行LED驱动IC的控制。 电阻器各自电连接到控制端子和预定电位之间。 此外，还提供了LED驱动方法。