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：US20240339066A1

公开(公告)日：2024-10-10

申请号：US18744691

申请日：2024-06-16

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chien-Hao Li ,  Jen-Chieh Hu ,  Syang-Yun Tzeng

IPC: G09G3/20

CPC classification number: G09G3/2088 ,  G09G2300/0408 ,  G09G2310/0208 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2340/0435 ,  G09G2370/08

Abstract: A display device includes a timing controller, a transmission line, and a source driver coupled to the timing controller via the transmission line. The source driver monitors a data rate of a pixel packet in an active area of a frame, synchronizes a clock according to the data rate to generate a synchronized clock, and clocks data in the pixel packet using the synchronized clock.

公开(公告)号：US20200243041A1

公开(公告)日：2020-07-30

申请号：US16845068

申请日：2020-04-10

Applicant: Novatek Microelectronics Corp.

Inventor： Syang-Yun Tzeng ,  Cheng-Kai Kuei ,  Chin-Hung Hsu

IPC: G09G5/00

Abstract: A timing controller and an operation method thereof are provided. The timing controller includes a transmitter circuit and a control circuit. The control circuit ends a normal mode and enter a swing boost mode when quality of data signal is detected to be deteriorated in the normal mode. In the swing boost mode, the control circuit boosts the swing of the data signal to be higher than a normal level of the data signal in the normal mode.

公开(公告)号：US20190237041A1

公开(公告)日：2019-08-01

申请号：US16245232

申请日：2019-01-10

Applicant: Novatek Microelectronics Corp.

Inventor： Syang-Yun Tzeng ,  Cheng-Kai Kuei ,  Chin-Hung Hsu

IPC: G09G5/00

CPC classification number: G09G5/008 ,  G09G5/005 ,  G09G2370/08

Abstract: A timing controller and an operation method thereof are provided. The timing controller includes a transmitter circuit and a control circuit. The control circuit ends a normal mode to enter a swing boost mode when a lock signal fed back by a source driving circuit indicates that quality of data signal is deteriorated in the normal mode. In the swing boost mode, the control circuit controls the transmitter circuit to boost the swing of the data signal from a normal level to a high level. The control circuit ends the swing boost mode and enters a clock training mode when the source driving circuit causes loss of lock to the data signal in the swing boost mode. In the clock training mode, the control circuit controls the transmitter circuit to employ a clock training data string as the data signal to transmit to the source driving circuit.

公开(公告)号：US20240096259A1

公开(公告)日：2024-03-21

申请号：US18370865

申请日：2023-09-20

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chien-Hao Li ,  Jen-Chieh Hu ,  Syang-Yun Tzeng

IPC: G09G3/20

CPC classification number: G09G3/2088 ,  G09G2300/0408 ,  G09G2310/0208 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2340/0435 ,  G09G2370/08

Abstract: A method of transmitting signals in a display device includes receiving a first data signal at a first data rate in a first time interval, and receiving a second data signal at a second data rate in a second time interval. The second data signal is generated at the second data rate, the second data rate is different from the first data rate, and the second time interval is non-overlapping with the first time interval.

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：US20150310816A1

公开(公告)日：2015-10-29

申请号：US14676801

申请日：2015-04-01

Applicant: Novatek Microelectronics Corp.

Inventor： Syang-Yun Tzeng ,  Ju-Lin Huang

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G2310/0248 ,  G09G2330/023

Abstract: A source driver, a control method thereof and a display device are provided. The source driver includes a plurality of first channels, a plurality of second channels, a first conductor, a second conductor, a plurality of first switches and a plurality of second switches. During a driving period, the outputs of the first channels belong to a first polarity, and the outputs of the second channels belong to a second polarity different from the first polarity. The first terminals of the first switches are coupled to the first conductor. The second terminals of the first switches are coupled to the output terminals of the first channels, respectively. The first terminals of the second switches are coupled to the second conductor. The second terminals of the second switches are coupled to the output terminals of the second channels, respectively.

Abstract translation: 提供源驱动器，其控制方法和显示装置。 源极驱动器包括多个第一通道，多个第二通道，第一导体，第二导​​体，多个第一开关和多个第二开关。 在驱动期间，第一通道的输出属于第一极性，第二通道的输出属于与第一极性不同的第二极性。 第一开关的第一端子耦合到第一导体。 第一开关的第二端子分别耦合到第一通道的输出端子。 第二开关的第一端子耦合到第二导体。 第二开关的第二端子分别耦合到第二通道的输出端子。

公开(公告)号：US20240096253A1

公开(公告)日：2024-03-21

申请号：US18233006

申请日：2023-08-11

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Chien Hao Li ,  Jen-Chieh Hu ,  Syang-Yun Tzeng

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/08 ,  G09G2320/02 ,  G09G2330/06 ,  G09G2370/08

Abstract: The embodiments of the present disclosure provide a signal transmission method and apparatus for a display device, and a display device. The method includes: adjusting a data rate for signal transmission within a blanking time; and performing signal transmission within an active time by using the data rate adjusted within the blanking time; wherein a signal transmission period of the display device includes the blanking time and the active time. Through the method of the present disclosure, the range of data rate used for signal transmission could be significantly expanded, more abundant data rate transmission requirements could be met, Electro Magnetic Interference during signal transmission could be reduced, and the quality of pictures displayed on the display device could be guaranteed.

公开(公告)号：US11176861B2

公开(公告)日：2021-11-16

申请号：US17088600

申请日：2020-11-04

Applicant: NOVATEK Microelectronics Corp.

Inventor： Syang-Yun Tzeng ,  Cheng-Tsu Hsieh ,  Ching-Wen Hou ,  Ying-Hsiang Wang ,  Ping Chen

IPC: G09G3/00

Abstract: An electronic device includes a substrate and a display driver chip bonded on the substrate. The display driver chip includes a plurality of operational amplifiers, and each of the operational amplifiers has a first stage and a second stage. The first stage includes a first power input terminal. The second stage includes a first power input terminal and an output terminal for outputting an output voltage. The first power input terminal of the first stage is connected to a first metal trace of the substrate, and the first power input terminal of the second stage is connected to a second metal trace of the substrate. The first power input terminal of the first stage and the first power input terminal of the second stage are both provided with a first voltage level.

公开(公告)号：US11004423B2

公开(公告)日：2021-05-11

申请号：US16845068

申请日：2020-04-10

Applicant: Novatek Microelectronics Corp.

Inventor： Syang-Yun Tzeng ,  Cheng-Kai Kuei ,  Chin-Hung Hsu

IPC: G09G5/00

Abstract: A timing controller and an operation method thereof are provided. The timing controller includes a transmitter circuit and a control circuit. The control circuit ends a normal mode and enter a swing boost mode when quality of data signal is detected to be deteriorated in the normal mode. In the swing boost mode, the control circuit boosts the swing of the data signal to be higher than a normal level of the data signal in the normal mode.