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公开(公告)号：US20240021124A1
公开(公告)日：2024-01-18
申请号：US17608141
申请日：2021-08-24
Inventor： Haoran LI
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/08 , G09G2300/0842 , G09G2300/0819 , G09G2330/021
Abstract: The disclosure discloses a drive circuit included a first transistor electrically connected to a first control terminal, a first voltage terminal, and a first node; an inductor electrically connected to the first node and a second voltage terminal; a first diode electrically connected to a grounding terminal and the first node; a first capacitor electrically connected to a second voltage terminal and the grounding terminal; and a discharging circuit module electrically connected to the first node and the grounding terminal to provide a discharging circuit to discharge the capacitor.
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公开(公告)号：US20240013706A1
公开(公告)日：2024-01-11
申请号：US17295450
申请日：2021-04-13
Inventor： Haoran LI
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2330/021 , G09G2310/08
Abstract: A light-emitting diode (LED) panel and a driving method thereof are disclosed. The LED panel includes a clock generation module configured to provide a clock signal; a control module including a plurality of output terminal groups, wherein, each of the output terminal groups includes at least one first output terminal, and the control module is configured to output electrical signals through different output terminal groups in sequence in a same frame time according to the clock signal; and a plurality of LED modules, wherein, each of the LED modules is correspondingly connected to the at least one first output terminal by one to one, and the LED modules are configured to emit light in sequence according to the electrical signals.
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公开(公告)号：US20240029627A1
公开(公告)日：2024-01-25
申请号：US17419078
申请日：2021-05-21
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2360/16 , G09G2320/0626
Abstract: The present application provides a driving method, a driving device, and a display terminal of a display panel. The display panel includes light emitting elements. The driving method includes: obtaining a grayscale data of a displayed image; determining a target current level from preset multiple current levels according to the grayscale data; determining a pulse width modulation signal according to the grayscale data; and driving the light emitting elements to emit light according to the target current level and the pulse width modulation signal.
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公开(公告)号：US20240022067A1
公开(公告)日：2024-01-18
申请号：US17605024
申请日：2021-07-27
Inventor： Haoran LI
IPC: H02H9/02
CPC classification number: H02H9/02
Abstract: A current limiting circuit includes a first voltage terminal, a second voltage terminal, a first transistor and a current limiting module. An input terminal of the first transistor is electrically connected to the first voltage terminal, and an output terminal of the first transistor is electrically connected to the second voltage terminal. The current limiting module is electrically connected to the input terminal of the first transistor and a control terminal of the first transistor. The current limiting module is configured to control voltage difference between the control terminal of the first transistor and the input terminal of the first transistor for controlling a state of the first transistor so that a current limiting value of the current limiting circuit is adjustable.
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公开(公告)号：US20240021123A1
公开(公告)日：2024-01-18
申请号：US17608138
申请日：2021-08-24
Inventor： Haoran LI , Jianfeng XIAO
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2330/021 , G09G2320/043 , G09G2320/041 , G09G2330/08
Abstract: A driving circuit is provided and includes a first transistor electrically connected to a first control terminal, a first voltage terminal and a first node; and a second transistor electrically connected to a second control terminal, the first node and a ground terminal; and an inductor, a first terminal thereof is electrically connected to the first node, and a second terminal thereof is electrically connected to a second voltage terminal; and a shunt module electrically connected to the first node and the ground terminal, and the shunt module is configured to provide a current loop to shunt a current flowing through the second transistor.
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Patent Agency Ranking
公开(公告)号：US20220415229A1
公开(公告)日：2022-12-29
申请号：US17429337
申请日：2021-07-27
Inventor： Haoran LI , Jianfeng XIAO
IPC: G09G3/20
Abstract: Please replace Abstract with the following amended Abstract: A reference voltage generation circuit is provided. The reference voltage generation circuit reduces a potential difference between a reference voltage less than a first data driving voltage and a data driving voltage, namely, the potential difference between a lower reference voltage and the data driving voltage is reduced. Therefore, the power loss of a voltage dividing module is reduced to prevent the problems of reduced reliability and reduced service life of a drive circuit board due to excessive internal temperature.
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公开(公告)号：US20220319450A1
公开(公告)日：2022-10-06
申请号：US17251896
申请日：2020-11-19
IPC: G09G3/34
Abstract: A display device and a controlling method thereof are provided. The display device includes a display panel, a backlight unit, and a time schedule controller. The display panel is configured to display images. Areas where afterimages of dynamic images occur are identified according to comparison results of dither values. Tailing phenomenon of the dynamic images may be relieved by transmitting backlight data without brightness to a second backlight sub-area corresponding to where the afterimages occur. Furthermore, because frequency multiplication is not applied, risks of display instability will not increase.
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公开(公告)号：US20240170955A1
公开(公告)日：2024-05-23
申请号：US17603073
申请日：2021-07-29
Inventor： Haoran LI
Abstract: A current limiting circuit includes a first voltage terminal, a second voltage terminal, a first transistor and a current limiting module. The first transistor includes an input terminal and an output terminal of the first transistor that are connected in series on a path formed by the first voltage terminal and the second voltage terminal. The current limiting module is electrically connected to a control terminal of the first transistor. The current limiting module is configured to output a control signal to the control terminal of the first transistor for controlling a state of the first transistor so that a current limiting value of the current limiting circuit is adjustable.
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公开(公告)号：US20230419880A1
公开(公告)日：2023-12-28
申请号：US17274801
申请日：2020-12-29
Inventor： Haoran LI
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2320/0633 , G09G2320/0271
Abstract: A driver chip, a display panel, and a driving method thereof are provided. The driver chip uses a pulse width modulation module and a pulse amplitude modulation module to control a waveform and a strength of a data signal respectively, which can obtain more display grayscales, a to-be-displayed brightness of a light emitting unit is larger, and a gradation level of the light-emitting unit is better. The pulse amplitude modulation module can modulate the strength of the data signal, can compensate the pixels, and improve the display quality of the display panel.
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公开(公告)号：US20230206822A1
公开(公告)日：2023-06-29
申请号：US18176199
申请日：2023-02-28
Inventor： Yongfeng WU , Wenfang LI , Haoran LI
IPC: G09G3/20 , G09G3/32 , H03K3/012 , H03K17/687
CPC classification number: G09G3/2096 , G09G3/32 , H03K3/012 , H03K17/6872 , G09G2310/08
Abstract: A switch device includes: a switch circuit; a control signal input terminal configured to input a control signal to the switch circuit; a voltage input terminal configured to input an initial voltage to the switch circuit; and a voltage output terminal configured to output an output voltage to a light-emitting device. The switch circuit includes: a first input terminal and a second input terminal electrically connected to the control signal input terminal and the voltage input terminal, respectively; and a first output terminal electrically connected to the voltage output terminal.
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