公开(公告)号：US20140375620A1

公开(公告)日：2014-12-25

申请号：US14054853

申请日：2013-10-16

Applicant: Novatek Microelectronics Corp.

Inventor： Cheng-Hung Chen ,  Jen-Chieh Hu ,  Ju-Lin Huang ,  Yi-Chuan Liu ,  Jhih-Siou Cheng

IPC: G09G3/36

CPC classification number: G09G3/3685 ,  G09G3/20 ,  G09G2310/0275 ,  G09G2320/041 ,  G09G2330/045

Abstract: A display apparatus and a source driver thereof are disclosed. The source driver includes a temperature sensor and a power switch. The temperature sensor is configured to measure a first working temperature of the source driver, and generate an over-temperature protection enable signal by comparing the first working temperature with a preset temperature. The power switch is coupled to a power transmission path for a core circuit of the source driver to receive an operating power, and configured to turn on or cut off the power transmission path according to the over-temperature protection enable signal.

Abstract translation: 公开了一种显示装置及其源驱动器。 源驱动器包括温度传感器和电源开关。 温度传感器被配置为测量源极驱动器的第一工作温度，并且通过将第一工作温度与预设温度进行比较来产生过温保护使能信号。 电源开关耦合到用于源极驱动器的核心电路的电力传输路径以接收工作电力，并且被配置为根据过温度保护使能信号接通或切断电力传输路径。

公开(公告)号：US20140132580A1

公开(公告)日：2014-05-15

申请号：US13863388

申请日：2013-04-16

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Jen-Chieh Hu

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3688 ,  G09G2320/0209

Abstract: A liquid crystal display (LCD) monitor including an LCD display panel for displaying a frame, a timing controller for generating a polarity control signal and a latch signal, and a driving circuit including a plurality of source drivers, each of the plurality of source drivers including a comparison unit for comparing a common electrode voltage with a first and a second reference voltages to generate a comparison result, an enabling unit for generating an enabling signal according to the comparison result, a source driving signal and a reset signal, a horizontal dot inversion control unit for generating a horizontal dot inversion control signal according to the enabling signal, and a polarity control unit for generating a polarity inversion control signal and the reset signal according to the enabling signal, the polarity control signal and the latch signal.

Abstract translation: 一种包括用于显示帧的LCD显示面板的液晶显示器（LCD）监视器，用于产生极性控制信号的定时控制器和锁存信号，以及包括多个源极驱动器的驱动电路，所述多个源极驱动器 包括用于比较公共电极电压与第一和第二参考电压以产生比较结果的比较单元，用于根据比较结果产生使能信号的使能单元，源驱动信号和复位信号，水平点 反转控制单元，用于根据使能信号产生水平点反转控制信号，以及极性控制单元，用于根据使能信号，极性控制信号和锁存信号产生极性反转控制信号和复位信号。

公开(公告)号：US20130176197A1

公开(公告)日：2013-07-11

申请号：US13736069

申请日：2013-01-08

Applicant: Novatek Microelectronics Corp.

Inventor： Jen-Chieh Hu

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2230/00 ,  G09G2310/0224 ,  G09G2330/021

Abstract: A display driving apparatus for driving a display panel is disclosed. The display driving apparatus includes a controller, a source driving circuit, and a gate driving circuit. The controller receives a display data and enables a specific driving mode when the display data is a specific display mode data. The source driving circuit generates a plurality of source driving signals. When the specific driving mode is enabled, the source driving circuit makes each source driving signal to hold at a DC driving voltage during a first sub-frame period of a frame period and at another DC driving voltage during a second sub-frame period of the frame period. When the specific driving mode is enabled, the gate driving circuit masks a first part of a plurality of gate scanning signals during the first sub-frame period and masks a second part of the gate scanning signals during the second sub-frame period.

Abstract translation: 公开了一种用于驱动显示面板的显示驱动装置。 显示驱动装置包括控制器，源极驱动电路和栅极驱动电路。 当显示数据是特定显示模式数据时，控制器接收显示数据并启用特定的驾驶模式。 源极驱动电路产生多个源极驱动信号。 当启用特定驱动模式时，源驱动电路使得每个源驱动信号在帧周期的第一子帧周期期间以DC驱动电压保持，并且在第二子帧周期期间在另一DC驱动电压期间保持 帧周期。 当启用特定驱动模式时，栅极驱动电路在第一子帧周期期间屏蔽多个栅极扫描信号的第一部分，并在第二子帧周期期间屏蔽第二部分栅极扫描信号。

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：US11170720B2

公开(公告)日：2021-11-09

申请号：US16028429

申请日：2018-07-06

Applicant: Novatek Microelectronics Corp.

Inventor： Pang-Jen Chiang ,  Jen-Chieh Hu ,  Chin-Hung Hsu

IPC: G09G3/3275 ,  G09G3/36 ,  G09G3/20

Abstract: The invention provides a display panel driving apparatus and a driving method thereof. The display panel driving apparatus includes a source driver circuit and a timing controller circuit. The source driver circuit loads data to data lines of the display panel in load data periods. The timing controller circuit controls the source driver circuit for dynamically configuring a time length of one of the load data periods according to whether charge sharing occurs. When a charge sharing operation is not performed on at least two of the data lines in the load data period, the load data period has a first time length. When the charge sharing operation is performed on at least two of the data lines in the load data period, the load data period has a second time length longer than the first time length.

公开(公告)号：US10762873B2

公开(公告)日：2020-09-01

申请号：US16261588

申请日：2019-01-30

Applicant: Novatek Microelectronics Corp.

Inventor： Jen-Chieh Hu ,  Chin-Hung Hsu

IPC: G09G5/00

Abstract: A driving circuit and an anti-interference method thereof are provided. The driving circuit includes a source driver. The source driver is configured to be controlled by a timing controller. The source driver is configured to adjust at least one of an operation frequency and a receiving bandwidth of a source driving circuit of the source driver when at least one of the timing controller and the source driver detects that an interference event occurs.

公开(公告)号：US20200258472A1

公开(公告)日：2020-08-13

申请号：US16858751

申请日：2020-04-27

Applicant: Novatek Microelectronics Corp.

Inventor： Jen-Chieh Hu ,  Chin-Hung Hsu

IPC: G09G5/00

Abstract: A timing controller and an anti-interference method thereof are provided. The timing controller includes a timing control circuit. The timing control circuit provides an input signal for controlling a source driver. When at least one of the timing control circuit and the source driver detects that an interference event occurs to the input signal, the timing control circuit is configured to adjust a frequency of a data signal or a clock signal from a normal operation frequency to at least one anti-interference frequency. The timing control signal is further configured to provide at least one of the data signal and the clock signal to the source driver.

公开(公告)号：US20170229055A1

公开(公告)日：2017-08-10

申请号：US15016294

申请日：2016-02-05

Applicant: Novatek Microelectronics Corp.

Inventor： Jen-Chieh Hu ,  Jung-Chieh Cheng

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/3677 ,  G09G5/18 ,  G09G2230/00 ,  G09G2310/0291 ,  G09G2310/063 ,  G09G2310/08 ,  G09G2320/0219 ,  G09G2320/0693 ,  G09G2330/026 ,  G09G2330/12

Abstract: A display apparatus, a gate driver and an operation method thereof are provided. The gate driver includes a first input buffer and a gate line driving circuit. An input terminal of the first input buffer is configured to receive a timing control signal from the outside of the gate driver. The gate line driving circuit is coupled to an output terminal of the first input buffer. The gate line driving circuit is configured to scan a plurality of gate lines of the display panel based on the control of the timing control signal. An output impedance of the first input buffer is correspondingly adjusted according to the coupling noise of the gate driver.