公开(公告)号：US08638049B2

公开(公告)日：2014-01-28

申请号：US13042957

申请日：2011-03-08

申请人： Cheng-Feng Yang ,  Cheng-I Wu ,  Li-Wei Mao

发明人： Cheng-Feng Yang ,  Cheng-I Wu ,  Li-Wei Mao

IPC分类号： H05B37/02

CPC分类号： H05B33/0818 ,  H05B33/0824

摘要： A driving device, a light emitting diode (LED) driving device and a method thereof are provided. The driving device includes a driving unit and a plurality of selection units. The driving unit produces a driving signal to drive a light emitting diode. The selection units are coupled to the driving unit and respectively correspond to a current value. The driving unit selects one of the selection units according a first pulse width modulation (PWM) signal. The current value corresponding to the selected selection unit is taken as the current value of the driving signal. The driving unit generates a duty cycle of a second PWM signal according to the duty cycle of the first PWM signal to serve as a duty cycle of the driving signal. In this way, power consumption of the LED is reduced.

摘要翻译： 提供驱动装置，发光二极管（LED）驱动装置及其方法。 驱动装置包括驱动单元和多个选择单元。 驱动单元产生驱动信号以驱动发光二极管。 选择单元耦合到驱动单元并且分别对应于当前值。 驱动单元根据第一脉宽调制（PWM）信号选择一个选择单元。 将与所选择的选择单元对应的当前值作为驱动信号的当前值。 驱动单元根据第一PWM信号的占空比产生第二PWM信号的占空比，用作驱动信号的占空比。 以这种方式，LED的功耗降低。

公开(公告)号：US20110221358A1

公开(公告)日：2011-09-15

申请号：US13042957

申请日：2011-03-08

申请人： Cheng-Feng Yang ,  Cheng-I Wu ,  Li-Wei Mao

发明人： Cheng-Feng Yang ,  Cheng-I Wu ,  Li-Wei Mao

IPC分类号： H05B41/282

CPC分类号： H05B33/0818 ,  H05B33/0824

摘要： A driving device, a light emitting diode (LED) driving device and a method thereof are provided. The driving device includes a driving unit and a plurality of selection units. The driving unit produces a driving signal to drive a light emitting diode. The selection units are coupled to the driving unit and respectively correspond to a current value. The driving unit selects one of the selection units according a first pulse width modulation (PWM) signal. The current value corresponding to the selected selection unit is taken as the current value of the driving signal. The driving unit generates a duty cycle of a second PWM signal according to the duty cycle of the first PWM signal to serve as a duty cycle of the driving signal. In this way, power consumption of the LED is reduced.

摘要翻译： 提供驱动装置，发光二极管（LED）驱动装置及其方法。 驱动装置包括驱动单元和多个选择单元。 驱动单元产生驱动信号以驱动发光二极管。 选择单元耦合到驱动单元并且分别对应于当前值。 驱动单元根据第一脉宽调制（PWM）信号选择一个选择单元。 将与所选择的选择单元对应的当前值作为驱动信号的当前值。 驱动单元根据第一PWM信号的占空比产生第二PWM信号的占空比，用作驱动信号的占空比。 以这种方式，LED的功耗降低。

公开(公告)号：US06897908B2

公开(公告)日：2005-05-24

申请号：US10064777

申请日：2002-08-16

申请人： Hsin-Ta Lee ,  Yuan-Liang Wu ,  Cheng-I Wu ,  Wen-Chieh Lin

发明人： Hsin-Ta Lee ,  Yuan-Liang Wu ,  Cheng-I Wu ,  Wen-Chieh Lin

IPC分类号： G02F1/1362 ,  H01L27/12 ,  G02F1/136

CPC分类号： G02F1/136213 ,  G02F1/136286 ,  H01L27/12

摘要： A liquid crystal display panel includes an upper substrate, a lower substrate, and a plurality of pixels located between the upper substrate and the lower substrate. Each of the pixels has at least a compensating capacitor for providing an approximately identical feed-through voltage for each of the pixels, thus reducing a flicker effect of the liquid crystal display device.

摘要翻译： 液晶显示面板包括上基板，下基板和位于上基板和下基板之间的多个像素。 每个像素具有至少一个补偿电容器，用于为每个像素提供大致相同的馈通电压，从而降低液晶显示装置的闪烁效果。

公开(公告)号：US08760383B2

公开(公告)日：2014-06-24

申请号：US12428076

申请日：2009-04-22

申请人： Cheng-Feng Yang ,  Cheng-I Wu ,  Shih-Pin Huang

发明人： Cheng-Feng Yang ,  Cheng-I Wu ,  Shih-Pin Huang

IPC分类号： H05B41/16 ,  H05B41/24 ,  G09G3/36

CPC分类号： H05B33/0818

摘要： A backlight module includes a light-emitting unit, and a controller to receive a first control signal and generate a second control signal to control the light-emitting unit. The controller controls a frequency of the second control signal according to a duty cycle of the first control signal.

摘要翻译： 背光模块包括发光单元和控制器，用于接收第一控制信号并产生第二控制信号以控制发光单元。 控制器根据第一控制信号的占空比来控制第二控制信号的频率。

公开(公告)号：US20090267530A1

公开(公告)日：2009-10-29

申请号：US12428076

申请日：2009-04-22

申请人： Cheng-Feng Yang ,  Cheng-I Wu ,  Shih-Pin Huang

发明人： Cheng-Feng Yang ,  Cheng-I Wu ,  Shih-Pin Huang

IPC分类号： H05B41/24

CPC分类号： H05B33/0818

摘要： A backlight module includes a light-emitting unit, and a controller to receive a first control signal and generate a second control signal to control the light-emitting unit. The controller controls a frequency of the second control signal according to a duty cycle of the first control signal.

摘要翻译： 背光模块包括发光单元和控制器，用于接收第一控制信号并产生第二控制信号以控制发光单元。 控制器根据第一控制信号的占空比来控制第二控制信号的频率。

公开(公告)号：US06809719B2

公开(公告)日：2004-10-26

申请号：US10063877

申请日：2002-05-21

申请人： Cheng-I Wu ,  Chin-Lung Ting

发明人： Cheng-I Wu ,  Chin-Lung Ting

IPC分类号： G09G336

CPC分类号： G09G3/3648 ,  G09G3/3688 ,  G09G2310/0205 ,  G09G2310/0297

摘要： A thin film transistor liquid crystal display (TFT LCD) has row pairs of pixels. Each row pair of pixels includes first row pixels arrayed in a first row, and second row pixels arrayed in a second row, together forming columns of pixels. First and second data drivers are provided for each column of pixels. Scan line drivers are provided for each row pair of pixels so that every pixel in a row pair of pixels is connected to the same scan line driver. Every first row pixel in a column of pixels is connected to the same first data driver, and every second row pixel in a column of pixels is connected to the same second data driver.

摘要翻译： 薄膜晶体管液晶显示器（TFT LCD）具有行对像素。 每行像素包括排列在第一行中的第一行像素和排列在第二行中的第二行像素，一起形成像素列。 为每列像素提供第一和第二数据驱动程序。 为每行像素提供扫描线驱动器，使得一行像素中的每个像素连接到同一扫描线驱动器。 像素列中的每个第一行像素连接到相同的第一数据驱动器，并且像素列中的每个第二行像素连接到相同的第二数据驱动器。