公开(公告)号：US10902816B2

公开(公告)日：2021-01-26

申请号：US15787710

申请日：2017-10-19

Applicant: Novatek Microelectronics Corp.

Inventor： Yu-Shao Liu

IPC: G09G3/36 ,  G09G3/20 ,  G09G5/00 ,  H03K19/0175

Abstract: A driving integrated circuit (IC) and a fan-out compensation method thereof are provided. The driving IC includes a plurality of driving channel circuits, a plurality of output buffer circuits and a compensation control circuit. The input terminals of the output buffer circuits are coupled to the output terminals of the driving channel circuits in a one-to-one manner. The output terminals of the output buffer circuits are coupled a plurality of data lines of a display panel in a one-to-one manner. The compensation control circuit is coupled to the output buffer circuits for adjusting the slew rate of the output terminals of the output buffer circuits to compensate difference in delay times between the data lines of the display panel.

公开(公告)号：US20210011601A1

公开(公告)日：2021-01-14

申请号：US16510541

申请日：2019-07-12

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Jiun-Jie TSAI ,  He-Wei HUANG

IPC: G06F3/041 ,  G06F3/0354 ,  G06F1/3218

Abstract: A method of using an active pen to wake a computer device from a power-saving mode is provided. The computer device includes a detecting apparatus, a processor, and a touch screen display panel. When the computer device is in a power-saving mode, the detecting apparatus continuously detects presence of the active pen within an effective detecting range with respect to the touch screen display panel. The detecting apparatus transmits a wakeup signal to the processor to wake the computer device when the detection circuit detects that the active pen is within the effective detecting range.

公开(公告)号：US20210004562A1

公开(公告)日：2021-01-07

申请号：US16850015

申请日：2020-04-16

Applicant: Novatek Microelectronics Corp.

Inventor： Shao-Yang Chiang ,  I-Hsiu Chen ,  Hung-Yu Yang

IPC: G06K9/00 ,  G06F3/042 ,  G06F3/041

Abstract: A fingerprint identification device and a fingerprint identification method are provided. The fingerprint identification device includes a self-emitting display panel, a fingerprint sensor and a processor. The self-emitting display panel displays at least one light pattern in a sensing region. The fingerprint sensor senses a finger object located above the sensing region of the self-emitting display panel to generate a first fingerprint image and a second fingerprint image corresponding to the at least one light pattern. The processor is coupled to the fingerprint sensor. The processor determines whether the first fingerprint image and the second fingerprint image have opposite tones to identify the finger object is a real finger or a fake finger.

公开(公告)号：US10885827B2

公开(公告)日：2021-01-05

申请号：US15925795

申请日：2018-03-20

Applicant: Novatek Microelectronics Corp.

Inventor： Shang-Yu Su ,  Feng-Ting Pai ,  Hsueh-Yen Yang ,  Kai-Min Yang

IPC: G02F1/1335 ,  G09G3/20 ,  G09G3/36

Abstract: A display panel including a plurality of sub-pixel repeating units is provided. The sub-pixel repeating units are repeatedly arranged on the display panel. Each of the sub-pixel repeating units includes at least one first color sub-pixel and at least one second color sub-pixel. On the display panel, the adjacent first color sub-pixels form a first polygon, and the adjacent second color sub-pixels form a second polygon. The area of the first polygon is at least twice the area of the second polygon.

公开(公告)号：US20200380904A1

公开(公告)日：2020-12-03

申请号：US16828971

申请日：2020-03-25

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yun-Hsuan Yeh ,  Tai-Yin Wu ,  Ying-Hsiang Wang ,  Yao-Hung Kuo

IPC: G09G3/20 ,  H03M1/74

Abstract: The present invention provides a driving circuit for a gamma voltage generator of a source driver. The gamma voltage generator includes a resistor string having a plurality of tap nodes, among which a plurality of first tap nodes are respectively connected to a plurality of first buffers. The driving circuit includes a second buffer, a digital-to-analog converter (DAC) and a control circuit. The second buffer is connected to a second tap node other than the plurality of first tap nodes among the plurality of tap nodes. The DAC is coupled to the second buffer. The control circuit, coupled to the DAC, is configured to receive a plurality of first control signals for the plurality of first buffers and calculate a second control signal for the DAC according to the plurality of first control signals.

公开(公告)号：US10852882B2

公开(公告)日：2020-12-01

申请号：US16600545

申请日：2019-10-13

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chih-Chang Lai ,  Kuan-Yi Yang ,  Jer-Hao Hsu

IPC: G06F3/041 ,  G06F3/044

Abstract: A fingerprint sensing control method for sensing one or more sensing signals from a fingerprint sensing device having a plurality of sensing areas, each of the sensing areas having a plurality of sensing units, the sensing control method includes determining a sensitivity of the fingerprint sensing device; and obtaining the one or more the fingerprint sensing signals from the fingerprint sensing device, wherein one or more of the plurality of sensing units are grouped so as to achieve the sensitivity, and for a first sensitivity of the sensing device, a first number of one or more sensing units are grouped, and for a second sensitivity of the fingerprint sensing device, a second number of one or more sensing units are grouped, and the second sensitivity is greater than the first sensitivity and the second number is greater than the first number.

公开(公告)号：US10832617B2

公开(公告)日：2020-11-10

申请号：US16830286

申请日：2020-03-26

Applicant: Novatek Microelectronics Corp.

Inventor： Jhih-Siou Cheng ,  Tzong-Honge Shieh ,  Ju-Lin Huang

IPC: G09G3/3258 ,  G06F3/041 ,  G06F3/044 ,  G09G3/3275 ,  G09G3/3208

Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals, the sensing channels are coupled to the sensing lines in an arrangement selected from one of a random arrangement and a normal arrangement. The driver further includes a signal convertor coupled to the sensing channels and configured to receive the sensing signals from the sensing channels in a sequence selected from one of a random sequence and a normal sequence.

公开(公告)号：US10803837B2

公开(公告)日：2020-10-13

申请号：US15806346

申请日：2017-11-08

Applicant: Novatek Microelectronics Corp.

Inventor： Hsueh-Yen Yang ,  Ching-Pei Cheng

IPC: G09G5/391 ,  G09G5/04 ,  G09G3/20 ,  G09G5/00

Abstract: An image processing apparatus including an image data processor unit is provided. The image data processor unit is configured to generate a plurality of partial output frames according to a plurality of input frames. With respect to one pixel in a display panel, each partial output frame among the partial output frames includes sub-pixel data corresponding to a part of sub-pixels in the pixel instead of sub-pixel data corresponding to all of the sub-pixels in the pixel. In addition, a display panel and a display apparatus are also provided.

公开(公告)号：US20200302997A1

公开(公告)日：2020-09-24

申请号：US16747559

申请日：2020-01-21

Applicant: Novatek Microelectronics Corp.

Inventor： Pin-Han Su ,  Jen-Hao Liao

IPC: G11C11/419

Abstract: A pre-charge circuit of a static random access memory (SRAM) controller and a pre-charging method thereof are provided. The pre-charge circuit of the SRAM controller includes a first switch, a second switch and a third switch. A first terminal of the first switch is coupled to a working voltage, a second terminal of the first switch is coupled to a first bit line of the SRAM controller, and the first switch is controlled by a first turn-on signal. A first terminal of the second switch is coupled to the working voltage, a second terminal of the second switch is coupled to a second bit line of the SRAM controller, and the second switch is controlled by a second turn-on signal. The third switch is coupled between the first bit line and the second bit line, and the third switch is controlled by a third turn-on signal. In a pre-charge mode, a time point at which the third switch is turned on is earlier than a time point at which the first switch is turned on and earlier than a time point at which the second switch is turned on.

公开(公告)号：US20200302857A1

公开(公告)日：2020-09-24

申请号：US16824712

申请日：2020-03-20

Applicant: Novatek Microelectronics Corp.

Inventor： Sheng-Wen Hsiao

IPC: G09G3/32

Abstract: An LED driving apparatus for driving an LED array including an output terminal group and a converter group is provided. The output terminal group includes a plurality of output terminals. The converter group includes a plurality of digital-to-analog converters. Each of the digital-to-analog converters outputs a driving current according to pixel data to drive a corresponding one of the LEDs. Each of digital-to-analog converters includes a plurality of sub-driving current generating circuits. The sub-driving current generating circuits are coupled to the corresponding output terminal of the output terminal group. Each of the sub-driving current generating circuits generates a sub-driving current having a current value corresponding to a bit order of a bit of the pixel data. The driving current is generated by summing up the sub-driving currents.