公开(公告)号：US20200211488A1

公开(公告)日：2020-07-02

申请号：US16233141

申请日：2018-12-27

Applicant: NOVATEK Microelectronics Corp.

Inventor： Cheng-Kai Kuei ,  Hsi-Mao Yu ,  Syang-Yun Tzeng

IPC: G09G3/36

Abstract: The present invention discloses a method for a source driver, for preventing image sticking in a display panel coupled to the source driver. The source driver includes a first output driver and a second output driver having different polarities. The first output driver is configured with a first driving capability and the second output driver is configured with a second driving capability. The method includes the steps of: obtaining an effective voltage of a pixel in the display panel; and adjusting the second driving capability of the second output driver to be identical to the first driving capability of the first output driver, to allow the adjusted second driving capability to drive the effective voltage to reach a level having the same magnitude as a level of the effective voltage driven by the first source driver with the same variation of display data.

公开(公告)号：US10971090B2

公开(公告)日：2021-04-06

申请号：US16233141

申请日：2018-12-27

Applicant: NOVATEK Microelectronics Corp.

Inventor： Cheng-Kai Kuei ,  Hsi-Mao Yu ,  Syang-Yun Tzeng

IPC: G09G3/36

Abstract: The present invention discloses a method for a source driver, for preventing image sticking in a display panel coupled to the source driver. The source driver includes a first output driver and a second output driver having different polarities. The first output driver is configured with a first driving capability and the second output driver is configured with a second driving capability. The method includes the steps of: obtaining an effective voltage of a pixel in the display panel; and adjusting the second driving capability of the second output driver to be identical to the first driving capability of the first output driver, to allow the adjusted second driving capability to drive the effective voltage to reach a level having the same magnitude as a level of the effective voltage driven by the first source driver with the same variation of display data.

公开(公告)号：US11430361B2

公开(公告)日：2022-08-30

申请号：US16261586

申请日：2019-01-30

Applicant: Novatek Microelectronics Corp.

Inventor： Hsi-Mao Yu ,  Chin-Hung Hsu

IPC: G09G3/20 ,  H05K9/00 ,  G06F3/041

Abstract: An integrated circuit (IC), a display device and an anti-interference method thereof are provided. The IC includes an input pad, a source driving circuit and an anti-interference circuit. The input pad receives an input signal comprising image data from the external. The source driving circuit is coupled to the input pad to receive the input signal. The anti-interference circuit is coupled to the input pad to provide a variable capacitance. The anti-interference circuit adjusts the variable capacitance from a normal capacitance value to at least one anti-interference capacitance value when an interference event occurs to the input signal. The anti-interference circuit maintains the variable capacitance at the normal capacitance value when the interference event does not occur.

公开(公告)号：US12183231B1

公开(公告)日：2024-12-31

申请号：US18479124

申请日：2023-10-02

Applicant: Novatek Microelectronics Corp.

Inventor： Hsi-Mao Yu ,  Te-Hsien Kuo

IPC: G09G3/00

Abstract: A display driving circuit adapted to drive a display panel to display an image is provided. The display driving circuit includes a source driver circuit and a timing controller circuit. The source driver circuit is configured to sense whether noise occurs and output a lock signal. The lock signal indicates whether the noise occurs. The timing controller circuit is coupled to the source driver circuit, and configured to output image data to the source driver circuit and receive the lock signal from the source driver circuit. The timing controller circuit adjusts a data depth of the image data or a frame rate of the display panel when the lock signal indicates the noise occurs.

公开(公告)号：US20190236996A1

公开(公告)日：2019-08-01

申请号：US16261586

申请日：2019-01-30

Applicant: Novatek Microelectronics Corp.

Inventor： Hsi-Mao Yu ,  Chin-Hung Hsu

IPC: G09G3/20 ,  G06F3/041 ,  H05K9/00

CPC classification number: G09G3/20 ,  G06F3/0412 ,  G09G2310/0264 ,  H05K9/0022

Abstract: An integrated circuit (IC), a display device and an anti-interference method thereof are provided. The IC includes an input pad, a source driving circuit and an anti-interference circuit. The input pad receives an input signal comprising image data from the external. The source driving circuit is coupled to the input pad to receive the input signal. The anti-interference circuit is coupled to the input pad to provide a variable capacitance. The anti-interference circuit adjusts the variable capacitance from a normal capacitance value to at least one anti-interference capacitance value when an interference event occurs to the input signal. The anti-interference circuit maintains the variable capacitance at the normal capacitance value when the interference event does not occur.