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    • 4. 发明申请
    • LIGHT-EMITTING ADJUSTMENT METHOD AND DISPLAY DEVICE
    • 发光调光方法和显示装置
    • US20110084621A1
    • 2011-04-14
    • US12786680
    • 2010-05-25
    • Chien-Ming KOHung-Ching LeeChih-Fu HsuYueh-Han Li
    • Chien-Ming KOHung-Ching LeeChih-Fu HsuYueh-Han Li
    • H05B37/02
    • H05B33/0851H05B33/0827
    • A light-emitting adjustment method and a display device are provided. The display device includes a voltage source, a light-emitting diode array, a pulse width modulator, a current sensor and a light-emitting adjuster. The voltage source provides an operating voltage. The pulse width modulator provides operating pulse signals to multiple light-emitting diodes arranged in column in order. The current sensor senses a plurality of overall current values of the light-emitting diodes at different timings during the light-emitting diodes are sequentially enabled. The light-emitting adjuster computes an operating current value of each of the light-emitting diodes according to the overall current values and performs a compensation operation based on the operating current value to obtain and output a compensation signal.
    • 提供了一种发光调节方法和显示装置。 显示装置包括电压源,发光二极管阵列,脉宽调制器,电流传感器和发光调节器。 电压源提供工作电压。 脉冲宽度调制器向按列排列的多个发光二极管提供工作脉冲信号。 电流传感器在顺序启动发光二极管期间以不同的定时感测发光二极管的多个总电流值。 发光调整器根据总电流值计算出各发光二极管的工作电流值,并根据工作电流值进行补偿动作,得到并输出补偿信号。
    • 5. 发明授权
    • Light-emitting adjustment method and display device
    • 发光调节方法及显示装置
    • US08305012B2
    • 2012-11-06
    • US12786680
    • 2010-05-25
    • Chien-Ming KoHung-Ching LeeChih-Fu HsuYueh-Han Li
    • Chien-Ming KoHung-Ching LeeChih-Fu HsuYueh-Han Li
    • H05B37/02
    • H05B33/0851H05B33/0827
    • A light-emitting adjustment method and a display device are provided. The display device includes a voltage source, a light-emitting diode array, a pulse width modulator, a current sensor and a light-emitting adjuster. The voltage source provides an operating voltage. The pulse width modulator provides operating pulse signals to multiple light-emitting diodes arranged in column in order. The current sensor senses a plurality of overall current values of the light-emitting diodes at different timings during the light-emitting diodes are sequentially enabled. The light-emitting adjuster computes an operating current value of each of the light-emitting diodes according to the overall current values and performs a compensation operation based on the operating current value to obtain and output a compensation signal.
    • 提供了一种发光调节方法和显示装置。 显示装置包括电压源,发光二极管阵列,脉宽调制器,电流传感器和发光调节器。 电压源提供工作电压。 脉冲宽度调制器向按列排列的多个发光二极管提供工作脉冲信号。 电流传感器在顺序启动发光二极管期间以不同的定时感测发光二极管的多个总电流值。 发光调整器根据总电流值计算出各发光二极管的工作电流值,并根据工作电流值进行补偿动作,得到并输出补偿信号。
    • 8. 发明授权
    • Light emitting diode driving device and driving method thereof
    • 发光二极管驱动装置及其驱动方法
    • US08217592B2
    • 2012-07-10
    • US12621775
    • 2009-11-19
    • Ching-Chou YuHung-Ching LeePo-Tang Hsu
    • Ching-Chou YuHung-Ching LeePo-Tang Hsu
    • H05B37/02
    • H05B33/0818H05B33/0848Y02B20/347
    • 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.
    • 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。
    • 9. 发明申请
    • LIGHT EMITTING DIODE DRIVING DEVICE AND DRIVING METHOD THEREOF
    • 发光二极管驱动装置及其驱动方法
    • US20100201282A1
    • 2010-08-12
    • US12621775
    • 2009-11-19
    • Ching-Chou YuHung-Ching LeePo-Tang Hsu
    • Ching-Chou YuHung-Ching LeePo-Tang Hsu
    • H05B37/02
    • H05B33/0818H05B33/0848Y02B20/347
    • 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.
    • 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。
    • 10. 发明申请
    • LIGHT EMITTING DIODE DRIVING METHOD
    • 发光二极管驱动方法
    • US20120049750A1
    • 2012-03-01
    • US13110154
    • 2011-05-18
    • Dang-Ko WangHung-Ching LeeChing-Chou Yu
    • Dang-Ko WangHung-Ching LeeChing-Chou Yu
    • H05B37/02
    • H05B33/0827
    • 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.
    • 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。