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    Backlight Module and Switching Method thereof
    3.
    发明申请
    Backlight Module and Switching Method thereof 审中-公开
    背光模块及其切换方法

    公开(公告)号：US20140160095A1

    公开(公告)日：2014-06-12

    申请号：US13964113

    申请日：2013-08-12

    Applicant: NOVATEK MICROELECTRONICS CORP.

    Inventor： Kuei-Chung Chang ,  Hsien-Wen Lo ,  Chih-Cheng Chang

    IPC: G09G3/34

    CPC classification number: G09G3/3406 ,  G09G2310/0237

    Abstract: A backlight module for a display device includes a clock generation module for generating a clock signal, a control module for generating a control signal and a selection control signal, a selection module coupled to the clock generation module and the control module for generating a selection result according to the clock signal and the control signal, and an output module coupled to the selection module for outputting the selection result according to the selection control signal, wherein the selection result controls the display device to be operated in a normal backlight mode, a transition mode or a flashing backlight mode.

    Abstract translation: 用于显示装置的背光模块包括用于产生时钟信号的时钟产生模块，用于产生控制信号和选择控制信号的控制模块，连接到时钟发生模块的选择模块和用于产生选择结果的控制模块 根据所述时钟信号和所述控制信号，以及耦合到所述选择模块的输出模块，用于根据所述选择控制信号输出所述选择结果，其中所述选择结果控制所述显示装置以正常背光模式操作， 模式或闪光背光模式。

    Data compression system for liquid crystal display and related power saving method
    4.
    发明授权
    Data compression system for liquid crystal display and related power saving method 有权

    公开(公告)号：US10534422B2

    公开(公告)日：2020-01-14

    申请号：US16021041

    申请日：2018-06-28

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Kuei-Chung Chang ,  Feng-Jung Kuo ,  Hsi-Chi Ho

    IPC: G06F1/3234 ,  G06T1/60 ,  G09G3/36

    Abstract: A drive circuit applicable to a display device includes a first signal path and a second signal path. The first signal path, configured to receive and transmit image data, includes a compression unit configured to perform a compression procedure on the image data to generate compression data; a storage unit configured to store the compression data; and a de-compression unit configured to perform a de-compression procedure on the compression data to recover the image data. The second signal path is configured to transmit the image data to the storage unit so as to bypass the compression unit, and transmit the image data received from the storage unit to a display unit so as to bypass the de-compression unit when the image data is not transmitted by the first signal path. The received image data is passed through the first signal path or the second signal path depending upon its characteristics.

    DISPLAY DRIVER AND METHOD FOR ADJUSTING COLOR TEMPERATURE OF IMAGE
    5.
    发明申请
    DISPLAY DRIVER AND METHOD FOR ADJUSTING COLOR TEMPERATURE OF IMAGE 有权
    显示驱动器和调整图像颜色温度的方法

    公开(公告)号：US20160351165A1

    公开(公告)日：2016-12-01

    申请号：US14727763

    申请日：2015-06-01

    Applicant: Novatek Microelectronics Corp.

    Inventor： Kuei-Chung Chang ,  Wan-Yu Kuo ,  Tzu-Chu Yin ,  Chun-Ta Wu ,  I-Te Liu

    IPC: G09G5/04 ,  G09G5/30 ,  G09G5/10 ,  G06F3/0484 ,  G09G5/00

    CPC classification number: G06F3/04842 ,  G09G3/2003 ,  G09G2320/0276 ,  G09G2320/0606 ,  G09G2320/0666 ,  G09G2320/0673

    Abstract: A display driver configured to drive a display panel to display an image is provided. The display driver includes an interpolation operation unit and a gamma circuit. The interpolation operation unit is configured to receive two gamma reference curves, and perform an interpolation operation on the two gamma reference curves to generate a plurality of gamma curves. The gamma circuit is configured to select one of the generated gamma curves based on a user selection signal, and drive the display panel to display the image based on the selected gamma curve, so as to adjust a color temperature of the image based on the user selection signal. Color temperatures of the generated gamma curves are distinct, and the generated gamma curves have the same gamma value. Furthermore, a method for adjusting a color temperature of an image is also provided.

    Abstract translation: 提供了配置成驱动显示面板显示图像的显示驱动器。 显示驱动器包括内插运算单元和伽马电路。 内插运算单元被配置为接收两个伽马参考曲线，并对两个伽马参考曲线进行插值运算以产生多个伽马曲线。 伽马电路被配置为基于用户选择信号来选择所生成的伽马曲线中的一个，并且基于所选择的伽马曲线驱动显示面板显示图像，以便基于用户来调整图像的色温 选择信号。 产生的伽马曲线的色温是不同的，所产生的伽马曲线具有相同的伽马值。 此外，还提供了一种用于调节图像的色温的方法。

    Image Processing Method and Display System Thereof
    6.
    发明申请
    Image Processing Method and Display System Thereof 审中-公开
    图像处理方法及显示系统

    公开(公告)号：US20140063036A1

    公开(公告)日：2014-03-06

    申请号：US13964111

    申请日：2013-08-12

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Huan-Yu Lin ,  Kuei-Chung Chang ,  Tzung-Yuan Lee

    IPC: G06T5/00

    CPC classification number: G06T5/00 ,  G06T5/009

    Abstract: An image processing method for an image processing device is disclosed. The image processing method includes receiving a setting value and a display data; calculating and converting a plurality of input pixel values of the display data according to the setting value, to obtain a plurality of target output pixel values of the display data; and adjusting a plurality of output pixel values of the display data to the plurality of target output pixel values in a plurality of frames gradually.

    Abstract translation: 公开了一种用于图像处理装置的图像处理方法。 图像处理方法包括：接收设定值和显示数据; 根据设定值计算并转换显示数据的多个输入像素值，以获得显示数据的多个目标输出像素值; 以及将所述显示数据的多个输出像素值逐渐调整为多个帧中的多个目标输出像素值。

    Fingerprint recognition device, readout circuit and operating method of fingerprint recognition device
    7.
    发明授权
    Fingerprint recognition device, readout circuit and operating method of fingerprint recognition device 有权

    公开(公告)号：US12026969B2

    公开(公告)日：2024-07-02

    申请号：US17863409

    申请日：2022-07-13

    Applicant: Novatek Microelectronics Corp.

    Inventor： Kuei-Chung Chang

    IPC: G06V40/13

    CPC classification number: G06V40/1318

    Abstract: A fingerprint recognition device including a sensor panel, a readout circuit and a host circuit is provided. The sensor panel includes a plurality of sensor pixels arranged in an array. The sensor pixels are configured to output sensing signals. The readout circuit is coupled to the sensor pixels. The readout circuit is configured to read out the sensing signals from the sensor pixels after a first exposure period to obtain a first fingerprint image, and read out the sensing signals after a second exposure period to obtain a second fingerprint image. The sensor pixels are reset before the first exposure period and after the second exposure period. The host circuit is coupled to the readout circuit. The host circuit is configured to perform a fingerprint recognition operation according to the first fingerprint image or the second fingerprint image.

    FINGERPRINT RECOGNITION DEVICE, READOUT CIRCUIT AND OPERATING METHOD OF FINGERPRINT RECOGNITION DEVICE
    8.
    发明公开
    FINGERPRINT RECOGNITION DEVICE, READOUT CIRCUIT AND OPERATING METHOD OF FINGERPRINT RECOGNITION DEVICE 审中-公开

    公开(公告)号：US20230162526A1

    公开(公告)日：2023-05-25

    申请号：US17863409

    申请日：2022-07-13

    Applicant: Novatek Microelectronics Corp.

    Inventor： Kuei-Chung Chang

    IPC: G06V40/13

    CPC classification number: G06V40/1318

    Abstract: A fingerprint recognition device including a sensor panel, a readout circuit and a host circuit is provided. The sensor panel includes a plurality of sensor pixels arranged in an array. The sensor pixels are configured to output sensing signals. The readout circuit is coupled to the sensor pixels. The readout circuit is configured to read out the sensing signals from the sensor pixels after a first exposure period to obtain a first fingerprint image, and read out the sensing signals after a second exposure period to obtain a second fingerprint image. The sensor pixels are reset before the first exposure period and after the second exposure period. The host circuit is coupled to the readout circuit. The host circuit is configured to perform a fingerprint recognition operation according to the first fingerprint image or the second fingerprint image.

    Fingerprint sensing control device and operation method thereof
    9.
    发明授权
    Fingerprint sensing control device and operation method thereof 有权

    公开(公告)号：US11244137B2

    公开(公告)日：2022-02-08

    申请号：US17110331

    申请日：2020-12-03

    Applicant: Novatek Microelectronics Corp.

    Inventor： Kuei-Chung Chang ,  Wu Wei Lin

    IPC: G06K9/00 ,  G06F3/041 ,  G09G3/20

    Abstract: A fingerprint sensing control device and an operation method thereof are provided. The fingerprint sensing control device includes a touch control circuit and a fingerprint sensing control circuit. The touch control circuit determines a touched region of an object on the touch panel. The fingerprint sensing control circuit performs a fingerprint sensing control on the touch panel and determines a target sensing sub-region overlaid by the touched region from a plurality of sensing sub-regions of the fingerprint sensing region of the touch panel. When the target sensing sub-region comprises a first sensing sub-region and a second sensing sub-region that are adjacent to each other, the fingerprint sensing control circuit starts to scan the first sensing sub-region in a first direction from a common edge between the first sensing sub-region and the second sensing sub-region and starts to scan the second sensing sub-region in a second direction from the common edge.

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