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1.发明授权公开(公告)号：US11301072B2
公开(公告)日：2022-04-12
申请号：US17000375
申请日：2020-08-24
Applicant: Novatek Microelectronics Corp.
Inventor： Sheng-Wen Hsiao , Liang-Chi Cheng
Abstract: A driving circuit configured to drive a display panel having a touch panel is provided. The driving circuit modulates a plurality of first voltage signals on a plurality of different first signals and provides the modulated first signals to the gate control circuit on the display panel. A plurality of gate lines of the display panel are driven according to the modulated first signals during a sensing period. The driving circuit modulates a plurality of second voltage signals on a second signal. The sensor pads of the touch panel are driven according to the modulated second signal during the sensing period. The driving circuit modulates a plurality of third voltage signals on a third signal and provides the modulated third signal to non-active sensor pads during the sensing period. A method for driving a display panel having a touch panel and a display apparatus are also provided.
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公开(公告)号：US11308306B2
公开(公告)日：2022-04-19
申请号：US17107962
申请日：2020-12-01
Applicant: NOVATEK Microelectronics Corp.
Inventor： Tsen-Wei Chang , Chih-Peng Hsia , Wei-Lun Shih , Hong-Chu Chen , Su-Wei Lien , Sheng-Wen Hsiao , Liang-Chi Cheng
Abstract: A control method for an optical fingerprint sensor and a touch controller are provided for canceling or reducing capacitive loading. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes the step of applying an anti-loading driving (ALD) signal on at least one of the first control signal line, the second control signal line, the first voltage source line, the second voltage source line and the sensing line when the touch controller is in a touch operation period.
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3.发明申请公开(公告)号：US20200342196A1
公开(公告)日：2020-10-29
申请号：US16907176
申请日：2020-06-20
Applicant: NOVATEK Microelectronics Corp.
Inventor： Tsen-Wei Chang , Chih-Peng Hsia , Wei-Lun Shih , Hong-Chu Chen , Su-Wei Lien , Sheng-Wen Hsiao , Liang-Chi Cheng
Abstract: The present invention provides a control method for an optical fingerprint sensor. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes a plurality of steps, and the steps are applying a first anti-loading driving (ALD) signal on the second control signal line, and applying a second ALD signal on at least one of the first control signal line, the first voltage source line, the second voltage source line and the sensing line.
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公开(公告)号：US11656716B2
公开(公告)日：2023-05-23
申请号：US17690016
申请日：2022-03-09
Applicant: NOVATEK Microelectronics Corp.
Inventor： Tsen-Wei Chang , Chih-Peng Hsia , Wei-Lun Shih , Hong-Chu Chen , Su-Wei Lien , Sheng-Wen Hsiao , Liang-Chi Cheng
CPC classification number: G06F3/04164 , G06F3/0412 , G06F3/0421 , G06F3/0446 , G06V40/1318
Abstract: A control method for an optical fingerprint sensor and a touch controller is provided, for canceling or reducing capacitive loading. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes the step of configuring at least one of the first control signal line, the second control signal line, the first voltage source line, the second voltage source line and the sensing line to be floating when the touch controller is in a touch operation period.
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公开(公告)号：US20220197466A1
公开(公告)日：2022-06-23
申请号：US17690016
申请日：2022-03-09
Applicant: NOVATEK Microelectronics Corp.
Inventor： Tsen-Wei Chang , Chih-Peng Hsia , Wei-Lun Shih , Hong-Chu Chen , Su-Wei Lien , Sheng-Wen Hsiao , Liang-Chi Cheng
Abstract: A control method for an optical fingerprint sensor and a touch controller is provided, for canceling or reducing capacitive loading. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes the step of configuring at least one of the first control signal line, the second control signal line, the first voltage source line, the second voltage source line and the sensing line to be floating when the touch controller is in a touch operation period.
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Patent Agency Ranking
公开(公告)号：US11861089B2
公开(公告)日：2024-01-02
申请号：US17686422
申请日：2022-03-04
Applicant: Novatek Microelectronics Corp.
Inventor： Sheng-Wen Hsiao , Liang-Chi Cheng
CPC classification number: G06F3/0412 , G06F3/041 , G06F3/044 , G06F3/0416 , G06F3/0446 , G06F3/04164 , G06F3/04166 , G06F3/04186 , G09G3/20 , G09G3/3688
Abstract: A driving circuit configured to drive a touch display panel is provided. The driving circuit includes a signal generating circuit and a sensor driving circuit. The signal generating circuit is configurable to be coupled to gate lines of the touch display panel via a gate control circuit. The signal generating circuit modulates a plurality of voltage signals on a first driving signal and a second driving signal, and provides the modulated first driving signal and the modulated second driving signal to the gate control circuit to drive the gate lines during a sensing period. The sensor driving circuit is configurable to be coupled to sensor pads of the touch display panel. The sensor driving circuit modulates the voltage signals on a third driving signal, and drives the sensor pads with the modulated third driving signal during the sensing period. A method for driving a touch display panel is also provided.
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公开(公告)号：US20220187940A1
公开(公告)日：2022-06-16
申请号：US17686422
申请日：2022-03-04
Applicant: Novatek Microelectronics Corp.
Inventor： Sheng-Wen Hsiao , Liang-Chi Cheng
Abstract: A driving circuit configured to drive a touch display panel is provided. The driving circuit includes a signal generating circuit and a sensor driving circuit. The signal generating circuit is configurable to be coupled to gate lines of the touch display panel via a gate control circuit. The signal generating circuit modulates a plurality of voltage signals on a first driving signal and a second driving signal, and provides the modulated first driving signal and the modulated second driving signal to the gate control circuit to drive the gate lines during a sensing period. The sensor driving circuit is configurable to be coupled to sensor pads of the touch display panel. The sensor driving circuit modulates the voltage signals on a third driving signal, and drives the sensor pads with the modulated third driving signal during the sensing period. A method for driving a touch display panel is also provided.
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公开(公告)号：US11295108B2
公开(公告)日：2022-04-05
申请号：US16907176
申请日：2020-06-20
Applicant: NOVATEK Microelectronics Corp.
Inventor： Tsen-Wei Chang , Chih-Peng Hsia , Wei-Lun Shih , Hong-Chu Chen , Su-Wei Lien , Sheng-Wen Hsiao , Liang-Chi Cheng
Abstract: A control method for an optical fingerprint sensor is provided for canceling or reducing capacitive loading. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes a plurality of steps, and the steps are applying a first anti-loading driving (ALD) signal on the second control signal line, and applying a second ALD signal on at least one of the first control signal line, the first voltage source line, the second voltage source line and the sensing line.
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公开(公告)号：US20210081640A1
公开(公告)日：2021-03-18
申请号：US17107962
申请日：2020-12-01
Applicant: NOVATEK Microelectronics Corp.
Inventor： Tsen-Wei Chang , Chih-Peng Hsia , Wei-Lun Shih , Hong-Chu Chen , Su-Wei Lien , Sheng-Wen Hsiao , Liang-Chi Cheng
Abstract: The present invention provides a control method for an optical fingerprint sensor and a touch controller. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes the step of applying an anti-loading driving (ALD) signal on at least one of the first control signal line, the second control signal line, the first voltage source line, the second voltage source line and the sensing line when the touch controller is in a touch operation period.
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公开(公告)号：US10809855B2
公开(公告)日：2020-10-20
申请号：US15086073
申请日：2016-03-31
Applicant: Novatek Microelectronics Corp.
Inventor： Sheng-Wen Hsiao , Liang-Chi Cheng
Abstract: A driving circuit configured to drive a display panel having a touch panel is provided. The driving circuit includes a signal generating circuit, a sensor driving circuit, and a source driving circuit. The signal generating circuit modulates a plurality of voltage signals on a first driving signal and a second driving signal, and drives the gate lines with the modulated first driving signal and the modulated second driving signal during a sensing period. The sensor driving circuit modulates the voltage signals on a third driving signal, and drives the sensor pads with the modulated third driving signal during the sensing period. The data lines are controlled to be electrically floating during the sensing period. In addition, a method for driving a display panel having a touch panel is also provided.
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