公开(公告)号：US08730222B2

公开(公告)日：2014-05-20

申请号：US13342211

申请日：2012-01-03

申请人： Chih-Wei Chang ,  Shu-Wen Chang ,  Chien-Yang Chen

发明人： Chih-Wei Chang ,  Shu-Wen Chang ,  Chien-Yang Chen

IPC分类号： G06F3/038 ,  G09G5/00

CPC分类号： G09G3/2096 ,  G09G3/2092 ,  G09G2310/0289 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2310/08 ,  G09G2320/0238 ,  G09G2320/0252

摘要： A display capable of improving frame quality includes a display panel, a timing controller, and a source driver. The timing controller is used for generating a scan start signal, and generating at least one control signal in a blanking time of the display panel according to polarity of a last datum before the blanking time and polarity of a first datum after the blanking time. The source driver is used for generating at least one datum synchronized with the at least one control signal according to the polarity of the last datum before the blanking time, a voltage of the first datum after the blanking time and the at least one control signal. The source driver does not change a last datum of the at least one datum after the at least one control signal in the blanking time.

摘要翻译： 能够提高帧质量的显示器包括显示面板，定时控制器和源驱动器。 定时控制器用于产生扫描开始信号，并且根据消隐时间之前的最后数据的极性和消隐时间之后的第一数据的极性，在显示面板的消隐时间中产生至少一个控制信号。 源驱动器用于根据消隐时间之前的最后数据的极性，消隐时间之后的第一数据的电压和至少一个控制信号，产生与至少一个控制信号同步的至少一个数据。 在消隐时间中，源驱动器不改变至少一个控制信号之后的至少一个数据的最后数据。

公开(公告)号：US20130113769A1

公开(公告)日：2013-05-09

申请号：US13342211

申请日：2012-01-03

申请人： Chih-Wei Chang ,  Shu-Wen Chang ,  Chien-Yang Chen

发明人： Chih-Wei Chang ,  Shu-Wen Chang ,  Chien-Yang Chen

IPC分类号： G09G5/00

CPC分类号： G09G3/2096 ,  G09G3/2092 ,  G09G2310/0289 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2310/08 ,  G09G2320/0238 ,  G09G2320/0252

摘要： A display capable of improving frame quality includes a display panel, a timing controller, and a source driver. The timing controller is used for generating a scan start signal, and generating at least one control signal in a blanking time of the display panel according to polarity of a last datum before the blanking time and polarity of a first datum after the blanking time. The source driver is used for generating at least one datum synchronized with the at least one control signal according to the polarity of the last datum before the blanking time, a voltage of the first datum after the blanking time and the at least one control signal. The source driver does not change a last datum of the at least one datum after the at least one control signal in the blanking time.

摘要翻译： 能够提高帧质量的显示器包括显示面板，定时控制器和源驱动器。 定时控制器用于产生扫描开始信号，并且根据消隐时间之前的最后数据的极性和消隐时间之后的第一数据的极性，在显示面板的消隐时间中产生至少一个控制信号。 源驱动器用于根据消隐时间之前的最后数据的极性，消隐时间之后的第一数据的电压和至少一个控制信号，产生与至少一个控制信号同步的至少一个数据。 在消隐时间中，源驱动器不改变至少一个控制信号之后的至少一个数据的最后数据。

公开(公告)号：US20120019154A1

公开(公告)日：2012-01-26

申请号：US12880161

申请日：2010-09-13

申请人： Chien-Yang Chen ,  Po-Kun Hsieh ,  Tung-Hsin Lan ,  Ming-Chang Lin

发明人： Chien-Yang Chen ,  Po-Kun Hsieh ,  Tung-Hsin Lan ,  Ming-Chang Lin

IPC分类号： H05B37/02 ,  H05B41/16

CPC分类号： H05B33/0818 ,  H05B33/0848

摘要： A power supply unit provides a voltage, and a driving current to a series of light emitting diodes. A dimming unit adjusts a duty cycle of an original dimming signal to generate a dimming signal according to the driving current and an ideal current. A current sink coupled to the series of light emitting diodes adjusts a duty cycle of the driving current according to the dimming signal.

摘要翻译： 电源单元向一系列发光二极管提供电压和驱动电流。 调光单元调节原始调光信号的占空比，根据驱动电流和理想电流产生调光信号。 耦合到一系列发光二极管的电流吸收器根据调光信号来调节驱动电流的占空比。

公开(公告)号：US20100283411A1

公开(公告)日：2010-11-11

申请号：US12534858

申请日：2009-08-04

申请人： Chien-Yang Chen ,  Chi-Hsiu Lin

发明人： Chien-Yang Chen ,  Chi-Hsiu Lin

IPC分类号： H05B41/36

CPC分类号： H05B33/0812 ,  Y02B20/343

摘要： A light emitting diode (LED) driving device and an LED driving method thereof are provided. The LED driving device includes a voltage generator, a circuit and a compensation circuit. The voltage generator is used to provide a positive voltage and a negative voltage, and the circuit is coupled to the positive voltage and the negative voltage. Herein, the circuit includes a load and an LED which are coupled to each other in series. The compensation circuit is used to sense voltages of two ends of the load, so as to generate a compensation signal and adjust the positive voltage and the negative voltage through the compensation signal. Therefore, voltage stress of the LED driving device is reduced by using the provided positive voltage and the provided negative voltage.

摘要翻译： 提供了一种发光二极管（LED）驱动装置及其LED驱动方法。 LED驱动装置包括电压发生器，电路和补偿电路。 电压发生器用于提供正电压和负电压，并且电路耦合到正电压和负电压。 这里，电路包括串联耦合的负载和LED。 补偿电路用于检测负载两端的电压，以产生补偿信号，并通过补偿信号调节正电压和负电压。 因此，通过使用所提供的正电压和所提供的负电压来降低LED驱动装置的电压应力。

公开(公告)号：US20150173153A1

公开(公告)日：2015-06-18

申请号：US14559927

申请日：2014-12-04

申请人： Leng-Nien Hsiu ,  Pei-Yuan Chen ,  Chien-Yang Chen

发明人： Leng-Nien Hsiu ,  Pei-Yuan Chen ,  Chien-Yang Chen

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0815

摘要： The present invention discloses a light emitting device control circuit with dimming function and a control method thereof. The light emitting device control circuit includes: a dimmer circuit, a rectifier and filter circuit, a power converter circuit, and a headroom voltage regulation circuit. The dimmer circuit generates an AC dimming voltage according to an AC voltage. The rectifier and filter circuit generates an input voltage according to the AC dimming voltage. The power converter circuit operates according to a control signal to convert the input voltage to an output voltage which is supplied to a light emitting device circuit. The headroom voltage regulation circuit generates the control signal according to a reference value and a difference between the input voltage and the output voltage, and regulates the difference at a level corresponding to the reference value by a feedback control loop.

摘要翻译： 本发明公开了一种具有调光功能的发光装置控制电路及其控制方法。 发光器件控制电路包括：调光器电路，整流器和滤波器电路，功率转换器电路和裕量调节电路。 调光电路根据交流电压产生交流调光电压。 整流器和滤波电路根据交流调光电压产生输入电压。 功率转换器电路根据控制信号进行工作，将输入电压转换为提供给发光器件电路的输出电压。 余量调压电路根据参考值和输入电压与输出电压之间的差产生控制信号，并通过反馈控制回路将该差值调节到与参考值相对应的电平。

公开(公告)号：US08115409B2

公开(公告)日：2012-02-14

申请号：US12424535

申请日：2009-04-15

申请人： Chi-Hsiu Lin ,  Shin-Chang Lin ,  Chien-Yang Chen

发明人： Chi-Hsiu Lin ,  Shin-Chang Lin ,  Chien-Yang Chen

IPC分类号： H05B37/02

CPC分类号： H05B41/2828 ,  H05B41/295

摘要： A driving circuit includes a signal generator, a resonant circuit, a control circuit and an adjusting circuit. The signal generator is utilized for generating an alternating current (AC) signal having a fixed frequency. The resonant circuit is coupled to the signal generator, and is utilized for generating an oscillation signal to drive a backlight source according to the alternating current signal. The control circuit is utilized for providing a control signal. The adjusting circuit is coupled to the control circuit, the resonant circuit and the backlight source, and is utilized for providing an impedance according to the control signal to thereby adjust a current value of the backlight source.

摘要翻译： 驱动电路包括信号发生器，谐振电路，控制电路和调整电路。 信号发生器用于产生具有固定频率的交流（AC）信号。 谐振电路耦合到信号发生器，并用于根据交流信号产生振荡信号以驱动背光源。 控制电路用于提供控制信号。 调节电路耦合到控制电路，谐振电路和背光源，并用于根据控制信号提供阻抗，从而调节背光源的电流值。

公开(公告)号：US08004205B2

公开(公告)日：2011-08-23

申请号：US12345689

申请日：2008-12-30

申请人： Chi-Hsiu Lin ,  Wei-Wen Chung ,  Chien-Yang Chen ,  Shih-Hen Chao

发明人： Chi-Hsiu Lin ,  Wei-Wen Chung ,  Chien-Yang Chen ,  Shih-Hen Chao

IPC分类号： H05B41/16

CPC分类号： H05B41/2822

摘要： A backlight module control system includes a power supply, a first backlight sub-module, a second backlight sub-module, a first transformer and a second transformer. The power supply is utilized for providing an operating power to the backlight module control system. A primary side and a secondary side of the first transformer are respectively coupled to the power supply and a first node of the first backlight sub-module. A primary side of the second transformer is coupled to the power supply, and a secondary side of the second transformer is coupled to the secondary side of the second transformer and a first node of the second backlight sub-module.

摘要翻译： 背光模块控制系统包括电源，第一背光子模块，第二背光子模块，第一变压器和第二变压器。 电源用于为背光模块控制系统提供工作电源。 第一变压器的初级侧和次级侧分别耦合到电源和第一背光子模块的第一节点。 第二变压器的初级侧耦合到电源，并且第二变压器的次级侧耦合到第二变压器的次级侧和第二背光子模块的第一节点。

公开(公告)号：US20100123416A1

公开(公告)日：2010-05-20

申请号：US12490348

申请日：2009-06-24

申请人： Chi-Hsiu Lin ,  Chun-Chien Chiu ,  Chien-Yang Chen

发明人： Chi-Hsiu Lin ,  Chun-Chien Chiu ,  Chien-Yang Chen

IPC分类号： H05B39/00

CPC分类号： H05B41/3925 ,  G09G3/3406 ,  H05B41/3927 ,  Y10S315/05

摘要： A control signal is provided for turning on and turning off a lamp of a backlight source. For a first duration when the liquid crystal is rotating, adjust a frequency of the control signal to turn on and turn off the lamp of the backlight source consecutively or adjust a duty cycle of the control signal to turn off and then turn on the lamp of the backlight source. Thus, the backlight source has a luminance value for the first duration, and the control signal turns on the lamp of the backlight source for a second duration when the liquid crystal is in the steady state.

摘要翻译： 提供控制信号用于打开和关闭背光源的灯。 在液晶旋转的第一个持续时间内，调节控制信号的频率以接通并连续关闭背光源的灯泡，或调节控制信号的占空比关闭，然后打开 背光源。 因此，背光源具有第一持续时间的亮度值，并且当液晶处于稳定状态时，控制信号使背光源的灯持续第二持续时间。

公开(公告)号：US07663599B1

公开(公告)日：2010-02-16

申请号：US12390511

申请日：2009-02-23

申请人： Chi-Hsiu Lin ,  Chien-Yang Chen ,  Shin-Chang Lin

发明人： Chi-Hsiu Lin ,  Chien-Yang Chen ,  Shin-Chang Lin

IPC分类号： G09G3/36

CPC分类号： G09G3/342 ,  G09G2320/041 ,  G09G2320/064 ,  H05B33/0818

摘要： A driving circuit for an LED backlight system is disclosed. The driving circuit includes an input voltage, an input resistor, an operational amplifier, a first transistor and a current calculation unit. The operational amplifier has a positive input terminal electrically connected to the input voltage through the input resistor, and an output terminal electrically connected to its negative input terminal thorough a feedback network. The first transistor is utilized for draining a reference current to control an output voltage of the operational amplifier according to the input voltage and the input resistor. The current calculation unit is utilized for generating a plurality of working currents proportional to the reference current to drive a plurality of LED strings according to the output voltage of the operational amplifier.

摘要翻译： 公开了一种用于LED背光系统的驱动电路。 驱动电路包括输入电压，输入电阻，运算放大器，第一晶体管和电流计算单元。 运算放大器具有通过输入电阻器电连接到输入电压的正输入端子，以及通过反馈网络电连接到其负输入端子的输出端子。 第一晶体管用于排放参考电流，以根据输入电压和输入电阻来控制运算放大器的输出电压。 当前计算单元用于产生与参考电流成比例的多个工作电流，以根据运算放大器的输出电压来驱动多个LED串。

公开(公告)号：US20100007288A1

公开(公告)日：2010-01-14

申请号：US12345689

申请日：2008-12-30

申请人： Chi-Hsiu Lin ,  Wei-Wen Chung ,  Chien-Yang Chen ,  Shih-Hen Chao

发明人： Chi-Hsiu Lin ,  Wei-Wen Chung ,  Chien-Yang Chen ,  Shih-Hen Chao

IPC分类号： H05B37/02

CPC分类号： H05B41/2822

摘要： A backlight module control system includes a power supply, a first backlight sub-module, a second backlight sub-module, a first transformer and a second transformer. The power supply is utilized for providing an operating power to the backlight module control system. A primary side and a secondary side of the first transformer are respectively coupled to the power supply and a first node of the first backlight sub-module. A primary side of the second transformer is coupled to the power supply, and a secondary side of the second transformer is coupled to the secondary side of the second transformer and a first node of the second backlight sub-module.

摘要翻译： 背光模块控制系统包括电源，第一背光子模块，第二背光子模块，第一变压器和第二变压器。 电源用于为背光模块控制系统提供工作电源。 第一变压器的初级侧和次级侧分别耦合到电源和第一背光子模块的第一节点。 第二变压器的初级侧耦合到电源，并且第二变压器的次级侧耦合到第二变压器的次级侧和第二背光子模块的第一节点。