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31.发明申请公开(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.
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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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33.发明申请公开(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：US20200293143A1
公开(公告)日：2020-09-17
申请号：US16352844
申请日：2019-03-14
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Huang-Chin Tang
Abstract: A timing control circuit and an operation method thereof are provided. The timing control circuit includes a receiving circuit, a line memory, and a timing generating circuit. The receiving circuit receives a video packet stream from the outside and provides an external horizontal sync signal and a first data signal. The line memory temporarily stores the first data signal, and outputs a second data signal to a source driver according to an internal horizontal sync signal generated by the timing generating circuit. A video frame period of the second data signal includes a video display operation period and a touch detection period. A video display operation period is divided into a plurality of sub-periods. The timing generating circuit performs a synchronization operation in each of the sub-periods, so as to synchronize the timing of the internal horizontal sync signal with the timing of the external horizontal sync signal.
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公开(公告)号：US20200251072A1
公开(公告)日：2020-08-06
申请号：US16748832
申请日：2020-01-22
Applicant: Novatek Microelectronics Corp.
Inventor： Hung-Hsiang Chen , Tso-Hua Chien , Huang-Chin Tang
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.
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Patent Agency Ranking
公开(公告)号：US20200035160A1
公开(公告)日：2020-01-30
申请号：US16045757
申请日：2018-07-26
Applicant: Novatek Microelectronics Corp.
Inventor： Ko-Fang Chen , Huang-Chin Tang
IPC: G09G3/3258
Abstract: A power management device including a power management circuit is provided. The power management circuit is configured to output a first power signal and a second power signal to a pixel circuit of a display panel. The pixel circuit includes an organic light-emitting diode. The organic light-emitting diode includes an anode terminal and a cathode terminal. The anode terminal is coupled to the first power signal. The cathode terminal is coupled to the second power signal. The second power signal is an alternating-current voltage. In addition, a pixel circuit of a display panel, and a power management method for the pixel circuit of the display panel are also provided.
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37.发明申请公开(公告)号：US20140306969A1
公开(公告)日：2014-10-16
申请号：US13972925
申请日：2013-08-22
Applicant: NOVATEK Microelectronics Corp.
Inventor： Huang-Chin Tang , Chun-Yi Chou
IPC: G09G5/00
CPC classification number: G09G5/006 , G09G5/12 , G09G2330/021 , G09G2340/0435 , G09G2360/18
Abstract: A display method for a monitor is capable of dynamically adjusting a frame rate of a display panel in a monitor. The display method includes storing a display data outputted from a host to a memory unit, generating a control signal according to a frequency of storing the display data to the memory unit, adjusting the frame rate according to the control signal and a predefined adjustment value, and outputting the display data stored in the memory unit to the display panel according to the frame rate.
Abstract translation: 监视器的显示方法能够动态地调整监视器中的显示面板的帧速率。 显示方法包括将从主机输出的显示数据存储到存储单元，根据存储显示数据的频率向存储单元生成控制信号，根据控制信号和预定义的调整值调整帧速率， 并根据帧速率将存储在存储器单元中的显示数据输出到显示面板。
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公开(公告)号：US12148237B2
公开(公告)日：2024-11-19
申请号：US18321730
申请日：2023-05-22
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Ting-Hsuan Hung , Wei-Lun Shih , Huang-Chin Tang
Abstract: An imaging control circuit for collecting object image data for an object presented on a portion of a surface of a display panel is provided. The imaging control circuit includes a first circuit, a second circuit and a third circuit. The first circuit is adapted to receive touch sensing signals from a set of touch sensors located in the display panel. The second circuit is adapted to receive object image sensing signals from a set of imaging sensors. The object image sensing signals are associated with the object detected on the surface of the display panel. The third circuit is adapted to determine a location of the object from the touch sensing signals and generate a variable sized object imaging zone based on a location and a size of an object image. The variable sized object imaging zone includes a variable subset of the imaging sensors.
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39.发明授权公开(公告)号：US12105909B2
公开(公告)日：2024-10-01
申请号：US18112642
申请日：2023-02-22
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Hung-Hsiang Chen , Chang-Hung Chen , Huang-Chin Tang
IPC: G06F3/041 , G09G3/3225
CPC classification number: G06F3/04166 , G09G3/3225 , G09G2310/08
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.
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40.发明授权公开(公告)号：US12008939B2
公开(公告)日：2024-06-11
申请号：US18163287
申请日：2023-02-02
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Ting-Hsuan Hung , Wei-Lun Shih , Huang-Chin Tang
CPC classification number: G09G3/20 , G06F3/0412 , G06V40/13 , G06V40/1318 , G09G2310/0272
Abstract: An electronic circuit includes a fingerprint sensing circuit that is configured to receive fingerprint sensing signals corresponding to a fingerprint image from fingerprint sensors via fingerprint sensing lines. The fingerprint sensing circuit is further configured to select a subset of the fingerprint sensing lines to form a fingerprint sensing zone having at least one boundary and adapted for a fingerprint sensing operation based on a fingerprint touch area. The subset of fingerprint sensing lines is selected based on the at least one boundary of the fingerprint sensing zone. The fingerprint sensing circuit is further configured to generate the fingerprint image according to the fingerprint sensing signals by a remapping operation.
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