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公开(公告)号：US12198583B1
公开(公告)日：2025-01-14
申请号：US18349973
申请日：2023-07-11
Applicant: NOVATEK Microelectronics Corp.
Inventor： Ching-Wu Tseng , Wei-Lun Shih
IPC: G09G3/00 , G09G3/3233
Abstract: A driver circuit is coupled to a control circuit which is configured to control a plurality of pixels. The driver circuit includes a detector circuit and an outputting circuit. The detector circuit is configured to detect whether an error occurs or not. The outputting circuit is configured to output an enable signal to the control circuit. When the error occurs, the enable signal changes from a first level to a second level such that the control circuit stops outputting a plurality of control signals to the plurality of pixels.
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公开(公告)号：US12014564B2
公开(公告)日：2024-06-18
申请号：US17407133
申请日：2021-08-19
Applicant: Novatek Microelectronics Corp.
Inventor： Wei-Lun Shih , Wu Wei Lin , Kuei Jung Chen
CPC classification number: G06V40/13 , G06F3/0412 , G09G3/36 , G09G2300/0408 , G09G2310/0286
Abstract: An electronic circuit adapted to control an operation of a gate driver circuit is provided. The electronic circuit includes a gate control circuit. The gate control circuit outputs control signals to the gate driver circuit in a display period and a fingerprint sensing period via the same output nodes. The control signals include a start pulse signal and a switch control signal. The switch control signal controls the gate driver circuit to operate in the display period or the fingerprint sensing period. The gate driver circuit includes a plurality of shift register groups and a switch circuit. The shift register groups output scan signals according to the start pulse signal. The switch circuit receives and outputs the scan signals to display scan lines in the display period and outputs the scan signals to fingerprint scan lines in the fingerprint sensing period according to the switch control signal.
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3.发明公开公开(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
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.
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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
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.
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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
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.
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Patent Agency Ranking
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
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.
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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.
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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
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.
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公开(公告)号：US12032767B2
公开(公告)日：2024-07-09
申请号：US18199970
申请日：2023-05-21
Applicant: NOVATEK Microelectronics Corp.
Inventor： Wei-Lun Shih , Ting-Hsuan Hung
CPC classification number: G06F3/0412 , G06F3/0421 , G06F3/1407 , G06F2203/04106
Abstract: A panel device includes a touch sensor, a first light sensor and a second light sensor, a first trace, a second trace and a control circuit. The touch sensor is disposed in a first area of the panel device to generate a touch sensing signal. The first light sensor and the second light sensor are disposed in a second area of the panel device to sense ambient light and generate a first light sensing signal and a second light sensing signal. The first trace is coupled to the first light sensor. The second trace is coupled to the second light sensor. The control circuit connects the first trace and the second trace and receives the first light sensing signal and the second light sensing signal at the same time to determine an ambient brightness. Sensitivities of the first light sensor and the second light sensor are different.
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公开(公告)号：US20240212551A1
公开(公告)日：2024-06-27
申请号：US18595470
申请日：2024-03-05
Applicant: Novatek Microelectronics Corp.
Inventor： Wei-Lun Shih , Wu-Wei Lin , Jiun-Jie Tsai , Huang-Chin Tang , Ching-Chun Lin
CPC classification number: G09G3/20 , G06F3/0412 , G06F3/04184 , G06V40/1318 , G09G2310/0286 , G09G2360/144
Abstract: An integrated driving device is provided. The integrated driving device includes a touch sensing circuit and an optical sensing circuit. The touch sensing circuit is configured to perform touch sensing in a plurality of touch sensing periods during a first frame period. The optical sensing circuit is configured to perform optical sensing during at least one optical sensing period during the first frame period to obtain optical sensing signals for generating first ambient light information. The touch sensing periods and the optical sensing period are non-overlapping. Correspondingly, an operation method of an integrated driving device is also provided.
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