公开(公告)号：US11862065B2

公开(公告)日：2024-01-02

申请号：US17692190

申请日：2022-03-11

Applicant: Novatek Microelectronics Corp.

Inventor： Grace Li ,  Jen-Ta Yang ,  Yen-Tao Liao ,  Yu-Hung Su

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G2310/08 ,  G09G2340/0435

Abstract: A timing control device for the display panel includes a control circuit. The control circuit is configured to generate a plurality of gate scanning control signals and a data transmission control signal. In response to that a display refresh rate changes from a first frequency to a second frequency, the control circuit adjusts the plurality of gate scanning control signals to generate a plurality of adjusted gate scanning control signals, or adjusts the data transmission control signal to generate an adjusted data transmission control signal, for driving a display panel under the second frequency as the display refresh rate.

公开(公告)号：US20240054968A1

公开(公告)日：2024-02-15

申请号：US17883634

申请日：2022-08-09

Applicant: Novatek Microelectronics Corp.

Inventor： Fu-Jung Wen ,  Heng-Yao Lin ,  Yen-Tao Liao ,  Jen-Ta Yang ,  Yu-Hung Su

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G2320/0242 ,  G09G2320/0247 ,  G09G2310/061 ,  G09G2340/0435

Abstract: The disclosure provides a display driving device and a display control device and an operation method thereof. The display control device includes a data analyzing circuit and a data compensation circuit. The data analyzing circuit performs arithmetic operation on multiple sub-pixel data output by a target driving channel of a source driver in a current frame to obtain a resultant value corresponding to the target driving channel. The data compensation circuit determines at least one compensation grayscale value corresponding to the resultant value. The compensation grayscale value is to be displayed by the target driving channel in a vertical blank period of a frame period in which the current frame is displayed. The target driving channel of the source driver outputs at least one compensation voltage corresponding to the at least one compensation grayscale value in the vertical blank period of the frame period.

公开(公告)号：US11222614B1

公开(公告)日：2022-01-11

申请号：US16985622

申请日：2020-08-05

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yun-Shu Yang ,  Yen-Tao Liao ,  Jen-Ta Yang

IPC: G09G5/10 ,  G06F1/16

Abstract: An image processing method with auto-adjusting gamma value is provided. This image processing method includes: receiving a detected value dependent upon a view angle between a normal direction of a screen and a sight direction of a viewer to the screen; receiving an original video frame with a plurality of pixels; determining at least one gamma table to obtain a gamma value for a pixel of the plurality of pixels according to the detected value, wherein there is an original pixel value corresponding to the pixel; and generating and outputting a corrected pixel value of the pixel based on the gamma value and the original pixel value of the pixel, wherein the screen is configured to show a corrected video frame having the pixel with the corrected pixel value. An image processing assembly and an image processing system are also provided.

公开(公告)号：US20200342801A1

公开(公告)日：2020-10-29

申请号：US16395247

申请日：2019-04-26

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yen-Tao Liao ,  Hung-Hsiang Chen ,  Jen-Ta Yang ,  Yi-Wei Lin ,  Huang-Chin Tang

IPC: G09G3/20

Abstract: The present invention discloses a driving method for a source driver, for driving a source line of a display panel. The driving method includes the steps of: driving the source line with a first voltage or a second voltage smaller than the first voltage in a first driving cycle; driving the source line with the first voltage in a second driving cycle next to the first driving cycle when the source line is driven with the first voltage in the first driving cycle; and driving the source line with an overdrive voltage in the second driving cycle when the source line is driven with the second voltage in the first driving cycle. The first voltage is a normal high voltage of the display panel, and the overdrive voltage is greater than the normal high voltage.

公开(公告)号：US20140340384A1

公开(公告)日：2014-11-20

申请号：US14447627

申请日：2014-07-31

Applicant: Novatek Microelectronics Corp.

Inventor： Hsin-Yi Chang ,  Jen-Ta Yang ,  Min-Jung Chen

IPC: G09G3/36 ,  G09G3/34

Abstract: A display device includes an image receiving unit, a power-saving control device, a display control unit, and a backlight module control unit. The power-saving control device judges whether or not received frames are still for a predetermined time. If the power-saving control device judges that the received frames are still for the predetermined time, the power-saving control device outputs a first control signal to the display control unit for controlling the display panel to perform power saving to reduce its power consumption while continuing displaying frames, and the backlight module control unit controls the backlight module to continue providing the backlight; while if the received frames are not still or are still for a time shorter than the predetermined time, the power-saving control device does not output the first control signal to the display control unit for controlling the display panel to perform power saving to reduce its power consumption.

Abstract translation: 显示装置包括图像接收单元，省电控制装置，显示控制单元和背光模块控制单元。 节电控制装置判断接收帧是否仍然在预定时间。 如果节电控制装置判定接收帧仍然在预定时间内，则省电控制装置向显示控制单元输出第一控制信号，以控制显示面板进行功率节省以降低其功耗，同时 继续显示帧，并且背光模块控制单元控制背光模块以继续提供背光; 而如果接收到的帧不是静止时间还是比预定时间短的时间，则省电控制装置不向显示控制单元输出第一控制信号，以控制显示面板进行省电以减少其 能量消耗。

公开(公告)号：US10957236B2

公开(公告)日：2021-03-23

申请号：US16395247

申请日：2019-04-26

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yen-Tao Liao ,  Hung-Hsiang Chen ,  Jen-Ta Yang ,  Yi-Wei Lin ,  Huang-Chin Tang

IPC: G09G3/20

Abstract: The present invention discloses a driving method for a source driver, for driving a source line of a display panel. The driving method includes the steps of: driving the source line with a first voltage or a second voltage smaller than the first voltage in a first driving cycle; driving the source line with the first voltage in a second driving cycle next to the first driving cycle when the source line is driven with the first voltage in the first driving cycle; and driving the source line with an overdrive voltage in the second driving cycle when the source line is driven with the second voltage in the first driving cycle. The first voltage is a normal high voltage of the display panel, and the overdrive voltage is greater than the normal high voltage.

公开(公告)号：US11887552B1

公开(公告)日：2024-01-30

申请号：US17883634

申请日：2022-08-09

Applicant: Novatek Microelectronics Corp.

Inventor： Fu-Jung Wen ,  Heng-Yao Lin ,  Yen-Tao Liao ,  Jen-Ta Yang ,  Yu-Hung Su

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G2310/061 ,  G09G2320/0242 ,  G09G2320/0247 ,  G09G2340/0435

Abstract: The disclosure provides a display driving device and a display control device and an operation method thereof. The display control device includes a data analyzing circuit and a data compensation circuit. The data analyzing circuit performs arithmetic operation on multiple sub-pixel data output by a target driving channel of a source driver in a current frame to obtain a resultant value corresponding to the target driving channel. The data compensation circuit determines at least one compensation grayscale value corresponding to the resultant value. The compensation grayscale value is to be displayed by the target driving channel in a vertical blank period of a frame period in which the current frame is displayed. The target driving channel of the source driver outputs at least one compensation voltage corresponding to the at least one compensation grayscale value in the vertical blank period of the frame period.

公开(公告)号：US20220293028A1

公开(公告)日：2022-09-15

申请号：US17692190

申请日：2022-03-11

Applicant: Novatek Microelectronics Corp.

Inventor： Grace Li ,  Jen-Ta Yang ,  Yen-Tao Liao ,  Yu-Hung Su

IPC: G09G3/20

Abstract: A timing control device for the display panel includes a control circuit. The control circuit is configured to generate a plurality of gate scanning control signals and a data transmission control signal. In response to that a display refresh rate changes from a first frequency to a second frequency, the control circuit adjusts the plurality of gate scanning control signals to generate a plurality of adjusted gate scanning control signals, or adjusts the data transmission control signal to generate an adjusted data transmission control signal, for driving a display panel under the second frequency as the display refresh rate.

公开(公告)号：US10795426B2

公开(公告)日：2020-10-06

申请号：US14447627

申请日：2014-07-31

Applicant: Novatek Microelectronics Corp.

Inventor： Hsin-Yi Chang ,  Jen-Ta Yang ,  Min-Jung Chen

IPC: G06F1/3234 ,  G09G3/36 ,  G09G3/34 ,  G06F1/3218

Abstract: A display device includes an image receiving unit, a power-saving control device, a display control unit, and a backlight module control unit. The power-saving control device judges whether or not received frames are still for a predetermined time. If the power-saving control device judges that the received frames are still for the predetermined time, the power-saving control device outputs a first control signal to the display control unit for controlling the display panel to perform power saving to reduce its power consumption while continuing displaying frames, and the backlight module control unit controls the backlight module to continue providing the backlight; while if the received frames are not still or are still for a time shorter than the predetermined time, the power-saving control device does not output the first control signal to the display control unit for controlling the display panel to perform power saving to reduce its power consumption.