公开(公告)号：US20200251038A1

公开(公告)日：2020-08-06

申请号：US16748781

申请日：2020-01-21

Applicant: Novatek Microelectronics Corp.

Inventor： Tso-Hua Chien ,  Hung-Hsiang Chen ,  Huang-Chin Tang

IPC: G09G3/20

Abstract: This disclosure relates to techniques for a driving apparatus including a reordering circuit and a source driving circuit. The reordering circuit can be configured to reorder a plurality of sub-pixel data of an input data string to generate a reordered data string so as to reduce a color switching number associated with a target data line. The source driving circuit can be coupled to the reordering circuit to receive the reordered data string. The source driving circuit can be configured to drive the target data line of a display panel according to the reordered data string.

公开(公告)号：US20200183562A1

公开(公告)日：2020-06-11

申请号：US16451021

申请日：2019-06-25

Applicant: Novatek Microelectronics Corp.

Inventor： Huan-Teng Cheng ,  Wen-Yi Hsieh ,  Huang-Chin Tang

IPC: G06F3/041 ,  G06F3/044

Abstract: An integrated circuit and a touch display apparatus are provided. The integrated circuit is configured to drive a touch display panel. The integrated circuit includes a regulator. An output terminal of the regulator is employed as a first node to output a common voltage, wherein the common voltage is configured to be provided to at least one common electrode of the touch display panel. An input terminal of the regulator is coupled to a second node different from the first node to receive a feedback voltage.

公开(公告)号：US20240161672A1

公开(公告)日：2024-05-16

申请号：US18421930

申请日：2024-01-24

Applicant: Novatek Microelectronics Corp.

Inventor： Huan-Teng Cheng ,  Ting-Hsuan Hung ,  Tzu-Wen Hsieh ,  Wei-Lun Shih ,  Huang-Chin Tang

IPC: G09G3/20 ,  G06F3/041 ,  G06V40/13

CPC classification number: G09G3/20 ,  G06F3/0412 ,  G06V40/13 ,  G06V40/1318 ,  G09G2310/0272

Abstract: An electronic circuit including a plurality of common terminals, a first circuit, a second circuit, and a plurality of switch units is provided. The first circuit is configured to output display driving signals to data lines of a display panel via the common terminals. The second circuit is configured to receive fingerprint sensing signals from fingerprint sensing lines of the display panel via the common terminals. Each of the switch units includes a first terminal coupled to one of the common terminals and a plurality of second terminals coupled to the first circuit and the second circuit. The switch units are grouped into a plurality of groups, and each group corresponds to a fingerprint sensing channel of the second circuit.

公开(公告)号：US11935452B2

公开(公告)日：2024-03-19

申请号：US18170541

申请日：2023-02-17

Applicant: Novatek Microelectronics Corp.

Inventor： Huan-Teng Cheng ,  Ting-Hsuan Hung ,  Tzu-Wen Hsieh ,  Wei-Lun Shih ,  Huang-Chin Tang

IPC: G06V40/13 ,  G06F3/041 ,  G09G3/20

CPC classification number: G09G3/20 ,  G06F3/0412 ,  G06V40/13 ,  G06V40/1318 ,  G09G2310/0272

Abstract: An electronic circuit for operating with a display panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit, a third circuit, a first switch circuit and a control circuit. The first circuit generates display driving signals for driving the display panel. The second circuit receives fingerprint sensing signals from the fingerprint sensors. The third circuit determines a touch information according to touch sensing signals from the touch sensors. The first switch circuit includes a plurality of first switch units, each of the first switch units includes a first switch element and a second switch element. The control circuit controls the first switch circuit to transmit the display driving signals in a first time interval, controls the first switch circuit to transmit the fingerprint sensing signals in a second time interval, and controls the third circuit to receive the fingerprint sensing signals in a third time interval.

公开(公告)号：US11749012B2

公开(公告)日：2023-09-05

申请号：US17886428

申请日：2022-08-11

Applicant: Novatek Microelectronics Corp.

Inventor： Wei-Lun Shih ,  Wu-Wei Lin ,  Huang-Chin Tang ,  Ting-Hsuan Hung

IPC: G06V40/13 ,  G09G3/20 ,  G06F3/041

CPC classification number: G06V40/1306 ,  G06F3/0412 ,  G09G3/20 ,  G06F3/04166 ,  G09G2300/0408 ,  G09G2354/00

Abstract: A chip capable of controlling a panel to perform fingerprint sensing is provided. Fingerprint sensing pixels of the panel are divided into a plurality of fingerprint zones along a first direction. The chip includes a control circuit. The control circuit provides multiple control signals for controlling the panel to perform fingerprint sensing. The control signals include multiple start pulse signals. The start pulse signals are used to indicate the selected fingerprint zone. The number of the fingerprint zones is greater than the number of the start pulse signals.

公开(公告)号：US11631373B1

公开(公告)日：2023-04-18

申请号：US17956820

申请日：2022-09-29

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Hsiang Chen ,  Che-Ching Chang ,  Huang-Chin Tang

IPC: G09G3/3266 ,  G09G3/3291

Abstract: A method of controlling a display panel includes steps of: detecting a plurality of lines of display data to generate a detection result; determining whether to apply a general timing or a compensation timing to each of the lines of display data according to the detection result; allocating a first display line period for a first line of display data determined to be applied with the general timing; outputting at least one control signal to the display panel in the first display line period according to a length of the first display line period; allocating a second display line period for a second line of display data determined to be applied with the compensation timing; and outputting the at least one control signal to the display panel in the second display line period according to a length of the second display line period different from the first display line period.

公开(公告)号：US20220383654A1

公开(公告)日：2022-12-01

申请号：US17886428

申请日：2022-08-11

Applicant: Novatek Microelectronics Corp.

Inventor： Wei-Lun Shih ,  Wu-Wei Lin ,  Huang-Chin Tang ,  Ting-Hsuan Hung

IPC: G06V40/13 ,  G09G3/20 ,  G06F3/041

Abstract: A chip capable of controlling a panel to perform fingerprint sensing is provided. Fingerprint sensing pixels of the panel are divided into a plurality of fingerprint zones along a first direction. The chip includes a control circuit. The control circuit provides multiple control signals for controlling the panel to perform fingerprint sensing. The control signals include multiple start pulse signals. The start pulse signals are used to indicate the selected fingerprint zone. The number of the fingerprint zones is greater than the number of the start pulse signals.

公开(公告)号：US20210349599A1

公开(公告)日：2021-11-11

申请号：US17313796

申请日：2021-05-06

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Hsiang Chen ,  Chang-Hung Chen ,  Huang-Chin Tang

IPC: G06F3/041 ,  G09G3/3225

Abstract: The disclosure provides a method for driving an OLED touch-and-display device, a driving circuit, and an OLED touch-and-display device. The method includes: dividing each display frame into at least one display period and at least one touch detection period which are alternated; during each display period, generating sequentially-shifted gate driving signals and sequentially-shifted light-emission control signals, and sequentially applying the sequentially-shifted gate driving signals to at least a part of gate driving lines, and sequentially applying the sequentially-shifted light-emission control signals to at least a part of light-emission control lines; during each touch detection period, suspending generation of sequentially-shifted gate driving signals without suspending generation of sequentially-shifted light-emission control signals; and during a period when a gate driving signal for each row of pixels is of active level, maintaining a light-emission control signal for the row of pixels at inactive level.

公开(公告)号：US20210056280A1

公开(公告)日：2021-02-25

申请号：US16865404

申请日：2020-05-03

Applicant: NOVATEK Microelectronics Corp.

Inventor： Huan-Teng Cheng ,  Wei-Lun Shih ,  Huang-Chin Tang

IPC: G06K9/00 ,  G06F3/0481 ,  G09G5/10 ,  G06F3/0488 ,  G06F3/041 ,  G06K9/20

Abstract: A control circuit configured to control a display panel under normal display includes a display driver circuit, a touch sensing circuit and a fingerprint sensing circuit. The touch sensing circuit, coupled to the display driver circuit, is configured to detect a predetermined touch gesture on the display panel and determine a position of the display panel on which the predetermined touch gesture is detected. The fingerprint sensing circuit, coupled to the touch sensing circuit, is configured to perform fingerprint sensing on at least one zone corresponding to the position when the predetermined touch gesture is detected, in order to perform a specific function.

公开(公告)号：US20210034833A1

公开(公告)日：2021-02-04

申请号：US16933952

申请日：2020-07-20

Applicant: Novatek Microelectronics Corp.

Inventor： Huan-Teng Cheng ,  Ting-Hsuan Hung ,  Tzu-Wen Hsieh ,  Wei-Lun Shih ,  Huang-Chin Tang

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

Abstract: An electronic circuit adapted to drive a display panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit, a first switch circuit and a control circuit. The first circuit generates display driving signals for driving the display panel. The second circuit receives fingerprint sensing signals from the fingerprint sensors. The first switch circuit is coupled to a second switch circuit on the display panel. The control circuit generates control signals for controlling the first switch circuit and the second switch circuit, so as to control the electronic circuit to transmit the display driving signals from the first circuit to the data lines through the first and the second switch circuits in a first time interval, and control the electronic circuit to receive the fingerprint sensing signals from the fingerprint sensors through the first and the second switch circuits in a second time interval.