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公开(公告)号：US20230253880A1
公开(公告)日：2023-08-10
申请号：US17612289
申请日：2021-05-31
发明人： Yonghua ZHOU
摘要： A voltage generation module and a power supply management chip include a reference voltage generation circuit, a comparison circuit, a switch circuit and a voltage control circuit. The reference voltage generation circuit generates a first reference voltage and a second reference voltage. The comparison circuit applies a turn-on control signal or a turn-off control signal. In the case that the switch circuit controls the input terminal to be electrically disconnected from the voltage output terminal, the voltage control circuit controls an output voltage signal from the voltage output terminal in accordance with the first reference voltage.
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公开(公告)号：US11309890B1
公开(公告)日：2022-04-19
申请号：US17431622
申请日：2021-05-24
发明人： Sangmin Park , Jangjin Nam
IPC分类号： G11C19/00 , H03K19/0175 , G09G3/20
摘要： The present disclosure provides a pre-emphasis circuit, method and display device, and belongs to a field of display driving. The pre-emphasis circuit according to the disclosure can determine whether to output a pre-emphasis voltage corresponding to grayscale of current input data via an input terminal of an amplifier according to data input to a data terminal by adding an amplifier input pre-emphasis module. Rapid conversion of output voltage can be realized without increasing the quiescent current of the amplifier, while the stability of temperature of the IC is ensured.
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公开(公告)号：US11621550B2
公开(公告)日：2023-04-04
申请号：US17420991
申请日：2021-05-07
发明人： Xinjiang Zhao , Yonghua Zhou
摘要： The present disclosure provides an overcurrent protection circuit, an overcurrent protection method, a clock signal generation circuit and a display device. The overcurrent protection circuit includes N first overcurrent detection circuits, N second overcurrent detection circuits, a first signal generation circuit, a second signal generation circuit, a first level switching circuit, a second level switching circuit and a control circuit. The first signal generation circuit is configured to output a first control signal to the first level switching circuit upon the receipt of a first overcurrent indication signal. The second signal generation circuit is configured to output a second control signal to the second level switching circuit upon the receipt of a second overcurrent indication signal. The control circuit is configured to provide an OFF control signal to an nth output control module after a predetermined time period upon the receipt of a third control signal and/or a fourth control signal, where N is a positive integer, and n is a positive integer smaller than or equal to N.
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4.发明申请公开(公告)号：US20220376683A1
公开(公告)日：2022-11-24
申请号：US17421688
申请日：2021-05-13
发明人： Dongmyung LEE , Donghoon BAEK , Jangjin NAM
IPC分类号： H03K3/03
摘要： This disclosure provides a voltage controlled oscillator and a control method thereof, a P2P interface circuit, an electronic device, and relates to the field of voltage controlled oscillation technology. The voltage controlled oscillator includes N stages of delay units, and the delay unit of each stage includes: a first inverter, a second inverter, a third inverter, and a fourth inverter; both the second inverter and the third inverter are electrically connected to a frequency control terminal, and whether to activate the second inverter and the third inverter is controlled by the frequency control terminal.
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公开(公告)号：US20220189365A1
公开(公告)日：2022-06-16
申请号：US17431621
申请日：2021-05-19
发明人： Sangmin Park , Jangjin Nam
摘要： A slew rate boosting circuit, a source driver chip and a display device are provided in the present disclosure. The slew rate boosting circuit comprises: a first latch configured to receive and store first data; a second latch configured to receive and store second data, the second data being next to the first data; a first level shifter; an amplifier; and a slew rate boosting module configured to receive a high voltage data signal as current input data, and adjust a slew rate of an output stage of the amplifier according to a value of a specified bit of the first data, a value of a specified bit of the second data and the current input data.
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公开(公告)号：US11942862B2
公开(公告)日：2024-03-26
申请号：US17612289
申请日：2021-05-31
发明人： Yonghua Zhou
摘要： A voltage generation module and a power supply management chip include a reference voltage generation circuit, a comparison circuit, a switch circuit and a voltage control circuit. The reference voltage generation circuit generates a first reference voltage and a second reference voltage. The comparison circuit applies a turn-on control signal or a turn-off control signal. In the case that the switch circuit controls the input terminal to be electrically disconnected from the voltage output terminal, the voltage control circuit controls an output voltage signal from the voltage output terminal in accordance with the first reference voltage.
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公开(公告)号：US20220343840A1
公开(公告)日：2022-10-27
申请号：US17420699
申请日：2021-05-07
发明人： Xinjiang ZHAO
IPC分类号： G09G3/3225 , G11C19/28
摘要： A charge sharing circuit, a charge sharing method, a display driving module and a display device are provided. The charge sharing circuit includes a control unit and a switch unit. The control unit is electrically connected to first output control ends of two clock signal generation units, and configured to provide, when a first output module controls to not output a first voltage signal under the control of a first output control signal, an on control signal to the switch unit through a control signal output end. The switch unit is configured to control clock signal output ends of the two clock signal generation units to be electrically connected to each other under the control of the on control signal.
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公开(公告)号：US11462142B2
公开(公告)日：2022-10-04
申请号：US17431621
申请日：2021-05-19
发明人： Sangmin Park , Jangjin Nam
摘要： A slew rate boosting circuit, a source driver chip and a display device are provided in the present disclosure. The slew rate boosting circuit comprises: a first latch configured to receive and store first data; a second latch configured to receive and store second data, the second data being next to the first data; a first level shifter; an amplifier; and a slew rate boosting module configured to receive a high voltage data signal as current input data, and adjust a slew rate of an output stage of the amplifier according to a value of a specified bit of the first data, a value of a specified bit of the second data and the current input data.
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公开(公告)号：US20230011399A1
公开(公告)日：2023-01-12
申请号：US17394885
申请日：2021-08-05
发明人： Tae Jin Kim , Seungchan Byun
摘要： Embodiments of the present application relate to the field of display driving technology, and disclose a method, an apparatus, an electronic device and a storage medium for processing pixel data. The method comprises: acquiring first image parameters of a first image unit and second image parameters of a second image unit, wherein the first image unit includes pixel data, of a first image, which is located on a first horizontal line, the second image unit includes pixel data, of a second image, which is located on the first horizontal line, and the second image is a previous frame of the first image; and updating the pixel data of the first image unit when the first image parameters do not match the second image parameters. The embodiments of the present application solve the problem of high driving power consumption in the process of outputting screens of the display panel in the prior art.
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公开(公告)号：US20220416531A1
公开(公告)日：2022-12-29
申请号：US17420991
申请日：2021-05-07
发明人： Xinjiang ZHAO , Yonghua ZHOU
IPC分类号： H02H3/093
摘要： The present disclosure provides an overcurrent protection circuit, an overcurrent protection method, a clock signal generation circuit and a display device. The overcurrent protection circuit includes N first overcurrent detection circuits, N second overcurrent detection circuits, a first signal generation circuit, a second signal generation circuit, a first level switching circuit, a second level switching circuit and a control circuit. The first signal generation circuit is configured to output a first control signal to the first level switching circuit upon the receipt of a first overcurrent indication signal. The second signal generation circuit is configured to output a second control signal to the second level switching circuit upon the receipt of a second overcurrent indication signal. The control circuit is configured to provide an OFF control signal to an nth output control module after a predetermined time period upon the receipt of a third control signal and/or a fourth control signal, where N is a positive integer, and n is a positive integer smaller than or equal to N.
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