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公开(公告)号：US20210157439A1
公开(公告)日：2021-05-27
申请号：US16884056
申请日：2020-05-27
Applicant: Novatek Microelectronics Corp.
Inventor： Yi-Ying Lin , Chih-Chang Lai
Abstract: A touch sensing device and a driving method for driving the touch sensing device are provided. The touch sensing device includes a plurality of electrodes and a driving circuit. The electrodes includes a touch sensing electrode and a force sensing electrode. During a touch sensing driving period, the driving circuit provides a first driving signal to one of the touch sensing electrode and the force sensing electrode, provides a second driving signal to another one of the touch sensing electrode and the force sensing electrode or controls the another one of the touch sensing electrode and the force sensing electrode to enter a floating state.
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公开(公告)号：US12153753B1
公开(公告)日：2024-11-26
申请号：US18474206
申请日：2023-09-25
Applicant: Novatek Microelectronics Corp.
Inventor： Yi-Ying Lin , Chih-Chang Lai
Abstract: An electronic device including a foldable touch display panel and a driver circuit is provided. The foldable touch display panel includes a foldable substrate and a plurality of touch sensors. The foldable substrate includes a first portion and a second portion. The first portion and the second portion face each other in a folded state. The driver circuit is coupled to the foldable touch display panel. The driver circuit is configured to drive the foldable touch display panel to perform a touch sensing operation in a touch sensing state. The driver circuit is configured to determine a folding angle between the first portion and the second portion according to a capacitance variation of the touch sensors in the folded state.
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Patent Agency Ranking
公开(公告)号：US12050745B2
公开(公告)日：2024-07-30
申请号：US18341776
申请日：2023-06-27
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yi-Ying Lin , Chih-Chang Lai
CPC classification number: G06F3/0416 , G06F3/0446
Abstract: A control method, suitable for a controller in an interface device having capacitive sensors, includes following steps. The capacitive sensors are arranged on a plane. During a first period, the controller is configured to set the capacitive sensors as self-capacitance sensors individually. During a second period, the controller is configured to divide the capacitive sensors into at least a first group and a second group, set the first group of capacitive sensors as a mutual-capacitance transmitter and generate a pulse signal to the mutual-capacitance transmitter, set the second group of capacitive sensors as a mutual-capacitance receiver and collect a sensing signal from the mutual-capacitance receiver in response to the pulse signal.
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公开(公告)号：US11726610B1
公开(公告)日：2023-08-15
申请号：US17813608
申请日：2022-07-20
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yi-Ying Lin , Chih-Chang Lai
CPC classification number: G06F3/041662 , G06F3/017 , G06F3/0446 , G06F2203/04108
Abstract: A control method, suitable for a controller in an interface device having capacitive sensors, includes following steps. The capacitive sensors are arranged on a plane. During a first period, the controller is configured to set the capacitive sensors as self-capacitance sensors individually. During a second period, the controller is configured to divide the capacitive sensors into at least a first group and a second group, set the first group of capacitive sensors as a mutual-capacitance transmitter and generate a pulse signal to the mutual-capacitance transmitter, set the second group of capacitive sensors as a mutual-capacitance receiver and collect a sensing signal from the mutual-capacitance receiver in response to the pulse signal.
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公开(公告)号：US11500492B2
公开(公告)日：2022-11-15
申请号：US17213154
申请日：2021-03-25
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yi-Ying Lin , Chih-Chang Lai
Abstract: The present invention provides a method of controlling a display panel having a sensing area and a non-sensing area. The sensing area includes a plurality of fingerprint sensing pixels, each of which is coupled to at least one control line. The non-sensing area includes a plurality of dummy pixels, each of which is coupled to at least one dummy line. The method includes steps of: applying a control signal on a first control line among the at least one control line or configuring the first control line to be floating, and applying a first anti-loading driving (ALD) signal corresponding to the control signal on a first dummy line among the at least one dummy line or configuring the first dummy line to be floating.
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公开(公告)号：US20220171487A1
公开(公告)日：2022-06-02
申请号：US17674817
申请日：2022-02-17
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yi-Ying Lin , Chih-Chang Lai
IPC: G06F3/041 , G09G3/3225 , G06F3/044 , H01L27/32
Abstract: The disclosure provides a method of driving a touch panel which includes a plurality of touch sensing electrodes and a plurality of display pixels. Each of the display pixels includes a light emission element and a driving transistor. Each of the touch sensing electrodes is coupled to the light emission element of at least one of the plurality of display pixels and served as an electrode of the light emission element. The method includes transmitting a first driving signal to at least one of the touch sensing electrodes during a touch sensing period, wherein the touch sensing electrode is coupled to a first power receiving terminal of the corresponding display pixel; transmitting a first power supply voltage to the first power receiving terminal during a display period; and controlling the light emission element of the corresponding display pixel to keep turned on when the first driving signal is transmitted.
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公开(公告)号：US10895927B2
公开(公告)日：2021-01-19
申请号：US16702662
申请日：2019-12-04
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Yi-Ying Lin , Chih-Chang Lai
Abstract: A touch display device including a drive chip and a touch display panel is provided. The drive chip includes a first common voltage source and a second common voltage source. The touch display panel includes a plurality of touch electrode including a plurality of rows and columns, wherein the number of columns is odd-numbered. The touch display panel includes a middle column, a first region and a second region. The middle column is interposed between the first region and the second region having the same number of touch electrodes. The touch electrodes in the first region and that in the second region are coupled to the first common voltage source and the second common voltage source respectively. The middle column is divided into a first half and a second half by a reference line. The first half and the second half have the same number of touch electrodes.
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