公开(公告)号：US09554434B2

公开(公告)日：2017-01-24

申请号：US14874477

申请日：2015-10-05

Applicant: AU Optronics Corp.

Inventor： Kuan-Cheng Chen ,  Yung-Hsu Lin

IPC: H05B33/08 ,  G09G3/34

CPC classification number: H05B33/0818 ,  G09G3/3406 ,  G09G2320/064 ,  G09G2330/021 ,  G09G2330/06 ,  H05B33/0815 ,  H05B33/0845 ,  Y02B20/346 ,  Y02B20/42

Abstract: A light-emitting diode driver includes a power switch, a logic unit and a pulse adjustment signal generator. The power switch is used to control a charging level of a light-emitting diode voltage terminal, and controlled to be turned on or off by a pulse-width modulation signal. The logic unit is coupled to a control terminal of the power switch, and used to generate a frequency control signal. The pulse adjustment signal generator is coupled to the logic unit, and used to generate an operational wave according to the frequency control signal and update the pulse-width modulation signal according to the operational wave. When the duty cycle of the pulse-width modulation signal is smaller than a pulse-width modulation threshold, the operational wave has a first frequency. When the duty cycle of the pulse-width modulation signal is larger than the pulse-width modulation threshold, the operational wave has a second frequency higher than the first frequency.

Abstract translation: 发光二极管驱动器包括电源开关，逻辑单元和脉冲调整信号发生器。 电源开关用于控制发光二极管电压端子的充电电平，并通过脉宽调制信号控制为导通或关断。 逻辑单元耦合到电源开关的控制端，用于产生频率控制信号。 脉冲调整信号发生器耦合到逻辑单元，用于根据频率控制信号产生工作波，并根据工作波更新脉冲宽度调制信号。 当脉宽调制信号的占空比小于脉冲宽度调制阈值时，工作波具有第一频率。 当脉冲宽度调制信号的占空比大于脉冲宽度调制阈值时，工作波具有高于第一频率的第二频率。

公开(公告)号：US09082364B2

公开(公告)日：2015-07-14

申请号：US13654385

申请日：2012-10-17

Applicant: AU Optronics Corp.

Inventor： Yung-Hsu Lin ,  Ming-Hung Tu ,  Chun-Fan Chung ,  Chih-Che Hsu

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3688 ,  G09G3/3406 ,  G09G2370/08

Abstract: A source driving system includes first and second source driving integrated circuits. The first driving integrated circuit includes a first source driver for receiving first display data and driving pixels in a first block of a display panel according to the first display data. The second source driving integrated circuit includes a second source driver electrically connected to the first source driver for receiving second display data and driving pixels in a second block of the display panel according to the second display data. The first and the second source drivers generate first and second display parameters according to the first and the second display data respectively. The second display parameter is transmitted from the second source driver to the first source driver. The first source driver generates a third display parameter according to the first and second parameters and transmits the third display parameter to the second source driver.

Abstract translation: 源驱动系统包括第一和第二源极驱动集成电路。 第一驱动集成电路包括用于根据第一显示数据接收第一显示数据和驱动显示面板的第一块中的像素的第一源驱动器。 第二源极驱动集成电路包括电连接到第一源极驱动器的第二源极驱动器，用于根据第二显示数据接收第二显示数据并驱动显示面板的第二块中的像素。 第一和第二源驱动器分别根据第一和第二显示数据生成第一和第二显示参数。 第二显示参数从第二源驱动器发送到第一源驱动器。 第一源驱动器根据第一和第二参数生成第三显示参数，并将第三显示参数发送到第二源驱动器。

公开(公告)号：US20160219663A1

公开(公告)日：2016-07-28

申请号：US14874477

申请日：2015-10-05

Applicant: AU Optronics Corp.

Inventor： Kuan-Cheng Chen ,  Yung-Hsu Lin

IPC: H05B33/08 ,  G09G3/34

CPC classification number: H05B33/0818 ,  G09G3/3406 ,  G09G2320/064 ,  G09G2330/021 ,  G09G2330/06 ,  H05B33/0815 ,  H05B33/0845 ,  Y02B20/346 ,  Y02B20/42

Abstract: A light-emitting diode driver includes a power switch, a logic unit and a pulse adjustment signal generator. The power switch is used to control a charging level of a light-emitting diode voltage terminal, and controlled to be turned on or off by a pulse-width modulation signal. The logic unit is coupled to a control terminal of the power switch, and used to generate a frequency control signal. The pulse adjustment signal generator is coupled to the logic unit, and used to generate an operational wave according to the frequency control signal and update the pulse-width modulation signal according to the operational wave. When the duty cycle of the pulse-width modulation signal is smaller than a pulse-width modulation threshold, the operational wave has a first frequency. When the duty cycle of the pulse-width modulation signal is larger than the pulse-width modulation threshold, the operational wave has a second frequency higher than the first frequency.

Abstract translation: 发光二极管驱动器包括电源开关，逻辑单元和脉冲调整信号发生器。 电源开关用于控制发光二极管电压端子的充电电平，并通过脉宽调制信号控制为导通或关断。 逻辑单元耦合到电源开关的控制端，用于产生频率控制信号。 脉冲调整信号发生器耦合到逻辑单元，用于根据频率控制信号产生工作波，并根据工作波更新脉冲宽度调制信号。 当脉宽调制信号的占空比小于脉冲宽度调制阈值时，工作波具有第一频率。 当脉冲宽度调制信号的占空比大于脉冲宽度调制阈值时，工作波具有高于第一频率的第二频率。

公开(公告)号：US20130093742A1

公开(公告)日：2013-04-18

申请号：US13654385

申请日：2012-10-17

Applicant: AU Optronics Corp.

Inventor： Yung-Hsu Lin ,  Ming-Hung Tu ,  Chun-Fan Chung ,  Chih-Che Hsu

IPC: G09G5/00

CPC classification number: G09G3/3688 ,  G09G3/3406 ,  G09G2370/08

Abstract: A source driving system includes first and second source driving integrated circuits. The first driving integrated circuit includes a first source driver for receiving first display data and driving pixels in a first block of a display panel according to the first display data. The second source driving integrated circuit includes a second source driver electrically connected to the first source driver for receiving second display data and driving pixels in a second block of the display panel according to the second display data. The first and the second source drivers generate first and second display parameters according to the first and the second display data respectively. The second display parameter is transmitted from the second source driver to the first source driver. The first source driver generates a third display parameter according to the first and second parameters and transmits the third display parameter to the second source driver.

Abstract translation: 源驱动系统包括第一和第二源极驱动集成电路。 第一驱动集成电路包括用于根据第一显示数据接收第一显示数据和驱动显示面板的第一块中的像素的第一源驱动器。 第二源极驱动集成电路包括电连接到第一源极驱动器的第二源极驱动器，用于根据第二显示数据接收第二显示数据并驱动显示面板的第二块中的像素。 第一和第二源驱动器分别根据第一和第二显示数据生成第一和第二显示参数。 第二显示参数从第二源驱动器发送到第一源驱动器。 第一源驱动器根据第一和第二参数生成第三显示参数，并将第三显示参数发送到第二源驱动器。