公开(公告)号：US20140022233A1

公开(公告)日：2014-01-23

申请号：US14042739

申请日：2013-10-01

Applicant: NOVATEK Microelectronics Corp.

Inventor： Tung-Shuan Cheng ,  Yueh-Hsiu Liu ,  Kai-Shu Han

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3674 ,  G09G3/3685 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/02 ,  G09G2330/06

Abstract: A driving device of a liquid crystal display (LCD) utilized for preventing noises of a clock signal from causing error operation of a shift register is disclosed. The driving device includes a shift register, a reception terminal, a noise elimination circuit and a control signal generation circuit. The reception terminal is utilized for receiving a first clock signal. The noise elimination circuit is coupled to the reception terminal, and is utilized for eliminating noises of the first clock signal and delaying the first clock signal for a preset time to generate a second clock signal. The control signal generation circuit is coupled to the reception terminal, the noise elimination circuit and the shift register, and is utilized for generating a first control signal and a second control signal to control the shift register.

Abstract translation: 公开了一种用于防止时钟信号的噪声引起移位寄存器的错误操作的液晶显示器（LCD）的驱动装置。 驱动装置包括移位寄存器，接收端子，噪声消除电路和控制信号生成电路。 接收终端用于接收第一时钟信号。 噪声消除电路耦合到接收终端，并且用于消除第一时钟信号的噪声并且延迟第一时钟信号达预设时间以产生第二时钟信号。 控制信号产生电路耦合到接收终端，噪声消除电路和移位寄存器，并用于产生第一控制信号和第二控制信号以控制移位寄存器。

公开(公告)号：US20220343837A1

公开(公告)日：2022-10-27

申请号：US17726558

申请日：2022-04-22

Applicant: Novatek Microelectronics Corp.

Inventor： Jhih-Siou Cheng ,  Chun-Fu Lin ,  Tung-Shuan Cheng ,  Po-Hsiang Fang ,  Ju-Lin Huang

IPC: G09G3/32

Abstract: A display driver for driving a display device including a pixel array is provided. The display driver includes a plurality of driving channels. The driving channels is configured to output driving signals in a pulse width modulation manner to drive the pixel array to illuminate in a first frame period which is being divided into a plurality of subframe periods. A first driving channel of the plurality of driving channels outputs a first driving signal in a first subframe period combination. A second driving channel of the plurality of driving channels outputs a second driving signal in a second subframe period combination different than the first subframe period combination. Each of the first subframe period combination and the second subframe period combination comprises at least one subframe period of the first frame period.

公开(公告)号：US11682343B2

公开(公告)日：2023-06-20

申请号：US17726558

申请日：2022-04-22

Applicant: Novatek Microelectronics Corp.

Inventor： Jhih-Siou Cheng ,  Chun-Fu Lin ,  Tung-Shuan Cheng ,  Po-Hsiang Fang ,  Ju-Lin Huang

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/08 ,  G09G2320/0247

Abstract: A display driver for driving a display device including a pixel array is provided. The display driver includes a plurality of driving channels. The driving channels is configured to output driving signals in a pulse width modulation manner to drive the pixel array to illuminate in a first frame period which is being divided into a plurality of subframe periods. A first driving channel of the plurality of driving channels outputs a first driving signal in a first subframe period combination. A second driving channel of the plurality of driving channels outputs a second driving signal in a second subframe period combination different than the first subframe period combination. Each of the first subframe period combination and the second subframe period combination comprises at least one subframe period of the first frame period.

公开(公告)号：US08773346B2

公开(公告)日：2014-07-08

申请号：US14042739

申请日：2013-10-01

Applicant: NOVATEK Microelectronics Corp.

Inventor： Tung-Shuan Cheng ,  Yueh-Hsiu Liu ,  Kai-Shu Han

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3674 ,  G09G3/3685 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/02 ,  G09G2330/06

Abstract: A driving device of a liquid crystal display (LCD) utilized for preventing noises of a clock signal from causing error operation of a shift register is disclosed. The driving device includes a shift register, a reception terminal, a noise elimination circuit and a control signal generation circuit. The reception terminal is utilized for receiving a first clock signal. The noise elimination circuit is coupled to the reception terminal, and is utilized for eliminating noises of the first clock signal and delaying the first clock signal for a preset time to generate a second clock signal. The control signal generation circuit is coupled to the reception terminal, the noise elimination circuit and the shift register, and is utilized for generating a first control signal and a second control signal to control the shift register.

Abstract translation: 公开了一种用于防止时钟信号的噪声引起移位寄存器的错误操作的液晶显示器（LCD）的驱动装置。 驱动装置包括移位寄存器，接收端子，噪声消除电路和控制信号生成电路。 接收终端用于接收第一时钟信号。 噪声消除电路耦合到接收终端，并且用于消除第一时钟信号的噪声并且延迟第一时钟信号达预设时间以产生第二时钟信号。 控制信号产生电路耦合到接收终端，噪声消除电路和移位寄存器，并用于产生第一控制信号和第二控制信号以控制移位寄存器。