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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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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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Patent Agency Ranking
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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公开(公告)号：US20200348785A1
公开(公告)日：2020-11-05
申请号：US16853763
申请日：2020-04-21
Applicant: Novatek Microelectronics Corp.
Inventor： Yu-Ying Tang , Chih-Chang Lai
IPC: G06F3/041 , H01L27/32 , G02F1/1333 , G06F3/044
Abstract: A touch display panel including a substrate, a first touch sensor layer and a display electrode layer is provided. The first touch sensor layer is disposed on the substrate and patternized into a plurality of blocks for serving as a plurality of first touch sensor electrodes. The first touch sensor electrodes are grouped into a plurality of touch sensor units. Each touch sensor unit includes one or more first touch sensor electrodes. At least one first touch sensor electrode of each touch sensor unit serves as a transmitting electrode during a touch sensing period. The display electrode layer is disposed between the substrate and the first touch sensor layer and patternized into a plurality of blocks for serving as a plurality of display electrodes. The display electrodes are grouped into a plurality of display units. Each display unit includes one or more display electrodes. Each display unit is respectively corresponding to a touch sensor unit of the plurality of touch sensor units.
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公开(公告)号：US10678369B2
公开(公告)日：2020-06-09
申请号：US16049823
申请日：2018-07-31
Applicant: NOVATEK Microelectronics Corp.
Inventor： Chih-Chang Lai , Chih-Yuan Chang
Abstract: A touch sensor system includes a touch panel, at least one multiplexer and a touch controller. The touch panel includes one or more touch sensing areas. The at least one multiplexer is coupled to the one or more touch sensing areas through one or more connecting wire groups on the touch panel, wherein each of the connecting wire groups includes one or more connecting wires. The touch controller is coupled to the at least one multiplexer via one or more touch control wires and one or more touch sensing wires. Each of the at least one multiplexer includes one or more switch groups each coupled between one of the one or more touch sensing wires and one of the connecting wire groups, and each of the switch groups includes one or more switches respectively controlled by one or more control signals transmitted through the one or more touch control wires.
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公开(公告)号：US20200042138A1
公开(公告)日：2020-02-06
申请号：US16600545
申请日：2019-10-13
Applicant: NOVATEK Microelectronics Corp.
Inventor： Chih-Chang Lai , Kuan-Yi Yang , Jer-Hao Hsu
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.
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公开(公告)号：US20180364857A1
公开(公告)日：2018-12-20
申请号：US16049823
申请日：2018-07-31
Applicant: NOVATEK Microelectronics Corp.
Inventor： Chih-Chang Lai , Chih-Yuan Chang
IPC: G06F3/041
CPC classification number: G06F3/0416 , G06F3/044
Abstract: A touch sensor system includes a touch panel, at least one multiplexer and a touch controller. The touch panel includes one or more touch sensing areas. The at least one multiplexer is coupled to the one or more touch sensing areas through one or more connecting wire groups on the touch panel, wherein each of the connecting wire groups includes one or more connecting wires. The touch controller is coupled to the at least one multiplexer via one or more touch control wires and one or more touch sensing wires. Each of the at least one multiplexer includes one or more switch groups each coupled between one of the one or more touch sensing wires and one of the connecting wire groups, and each of the switch groups includes one or more switches respectively controlled by one or more control signals transmitted through the one or more touch control wires.
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