公开(公告)号：US11094247B2

公开(公告)日：2021-08-17

申请号：US16822031

申请日：2020-03-18

Applicant: Novatek Microelectronics Corp.

Inventor： Kun-Yueh Lin ,  Hui-Hung Chang ,  Chien-Yu Chen

IPC: G09G3/32 ,  G09G3/3233

Abstract: A driving apparatus of a light emitting diode (LED) display device is provided. The driving apparatus includes a timing control circuit. The timing control circuit outputs a plurality of driving control signals to a gate driving circuit on an LED display panel of the LED display device. Wherein, the plurality of driving control signals includes a first driving control signal and a second driving control signal, and the pulse width of the first driving control signal in a first horizontal line period is different from the pulse width of a second driving control signal in a second horizontal line period preceding to the first horizontal line period.

公开(公告)号：US10304393B2

公开(公告)日：2019-05-28

申请号：US15681480

申请日：2017-08-21

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Cheng-Wen Lin ,  Chin-Yuan Tu ,  Hui-Hung Chang ,  Chien-Yu Chen

IPC: G09G3/34

Abstract: A brightness compensation method and a brightness compensation circuit for a display device are provided. The brightness compensation method includes the following steps. Receive original image data. Receive backlight timing parameters. Perform brightness compensation according to the image data and the backlight timing parameters. The step of performing brightness compensation includes adjusting at least one of pixel driving data, a driving gamma level, and a driver boost level.

公开(公告)号：US20140092033A1

公开(公告)日：2014-04-03

申请号：US13747486

申请日：2013-01-23

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hui-Hung Chang ,  Chun-Hung Chen

IPC: G06F3/041

CPC classification number: G06F3/041 ,  G06F3/0418 ,  G06F3/044

Abstract: A touch detection method for a touch panel. The touch panel has a plurality of sensing nodes. Each sensing node has a baseline value. Each sensing node is sensed to obtain a scanned value. A touch event is detected according to a comparison with a finger-on threshold. When there is no touch event, the method detects whether or not an abnormal object has entered the sensing node. When entered, the method judges whether a difference count between the scanned value and baseline value is larger than a calibration level. When the difference count is larger, then the scanned value is used to update the baseline value. When no abnormal object, then the method judges whether the difference count is larger than a noise threshold. When the difference count is larger, then the scanned value is used to update the baseline value. The calibration level is smaller than finger-on threshold.

Abstract translation: 触摸面板的触摸检测方法。 触摸面板具有多个感测节点。 每个感测节点具有基线值。 感测每个感测节点以获得扫描值。 根据与手指阈值的比较来检测触摸事件。 当没有触摸事件时，该方法检测异常对象是否已进入感测节点。 当输入时，该方法判断扫描值和基线值之间的差异计数是否大于校准水平。 当差值计数较大时，则使用扫描值更新基线值。 当没有异常对象时，该方法判断差值是否大于噪声阈值。 当差值计数较大时，则使用扫描值更新基线值。 校准水平小于手指阈值。

公开(公告)号：US20220309993A1

公开(公告)日：2022-09-29

申请号：US17701675

申请日：2022-03-23

Applicant: Novatek Microelectronics Corp.

Inventor： Wei-Jhe Ma ,  Feng-Ting Pai ,  Hui-Hung Chang

IPC: G09G3/20

Abstract: A display driver integrated circuit and a display driving method are provided. The display driver integrated circuit is suitable for driving a display panel of an electronic device. The display driver integrated circuit includes an image processing circuit, a timing controller, and a data driving circuit. The image processing circuit is configured to generate an output image based on time information, a background image, and an original time indication image. The timing controller is coupled to the image processing circuit, and configured to receive the output image. The data driving circuit is coupled to the timing controller, and configured to receive the output image and generate data voltages according to the output image. The data driving circuit drives the display panel according to the data voltages regarding to the output image.

公开(公告)号：US20200219437A1

公开(公告)日：2020-07-09

申请号：US16822031

申请日：2020-03-18

Applicant: Novatek Microelectronics Corp.

Inventor： Kun-Yueh Lin ,  Hui-Hung Chang ,  Chien-Yu Chen

IPC: G09G3/32 ,  G09G3/3233

Abstract: A driving apparatus of a light emitting diode (LED) display device is provided. The driving apparatus includes a timing control circuit. The timing control circuit outputs a plurality of driving control signals to a gate driving circuit on an LED display panel of the LED display device. Wherein, the plurality of driving control signals includes a first driving control signal and a second driving control signal, and the pulse width of the first driving control signal in a first horizontal line period is different from the pulse width of a second driving control signal in a second horizontal line period preceding to the first horizontal line period.

公开(公告)号：US20130246821A1

公开(公告)日：2013-09-19

申请号：US13677270

申请日：2012-11-14

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hui-Hung Chang ,  Chun-Ching Huang ,  Shih-Ming Lin

IPC: G06F1/32

CPC classification number: G06F1/3215 ,  G06F1/325

Abstract: The present invention discloses a serial interface transmitting method utilized in a serial interface for connecting between a master controller and a peripheral device. The serial interface transmitting method comprises receiving a saving power signal from the master controller, a peripheral clock source and a serial interface clock source for generating a clock source selection result, switching an operational mode of the peripheral device according to the clock source selection result, and transmitting a datum to a peripheral-device register or a serial interface register according to the saving power signal and the operational mode.

Abstract translation: 本发明公开了一种在串行接口中用于连接主控制器和外围设备之间的串行接口发送方法。 串行接口发送方法包括从主控制器，外围时钟源和串行接口时钟源接收用于产生时钟源选择结果的保存功率信号，根据时钟源选择结果切换外围设备的操作模式， 以及根据所述保存功率信号和所述操作模式将数据发送到外围设备寄存器或串行接口寄存器。