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公开(公告)号：US12087193B2
公开(公告)日：2024-09-10
申请号：US17608138
申请日：2021-08-24
发明人： Haoran Li , Jianfeng Xiao
IPC分类号： G09G3/20
CPC分类号： G09G3/20 , G09G2320/041 , G09G2320/043 , G09G2330/021 , G09G2330/08
摘要： 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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公开(公告)号：US11620958B2
公开(公告)日：2023-04-04
申请号：US17251896
申请日：2020-11-19
IPC分类号： G09G3/34
摘要： 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：US11538386B1
公开(公告)日：2022-12-27
申请号：US17429337
申请日：2021-07-27
发明人： Haoran Li , Jianfeng Xiao
IPC分类号： G09G3/20
摘要： 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：US11705053B2
公开(公告)日：2023-07-18
申请号：US17252204
申请日：2020-11-16
发明人： Haoran Li
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2330/06 , G09G2370/14
摘要： A display panel and a driving method thereof are provided, including a time schedule controller and at least one driver integrated circuit (driver IC). Pulse width modulation (PCM) data between the time schedule controller and the driver IC is transmitted in a decoded manner, and pulse amplitude modulation (PAM) data is transmitted in an undecoded manner, reducing a transmission rate between the time schedule controller and the driver IC, and thereby reducing or eliminating risks of electromagnetic interference (EMI). Furthermore, using this transmission method can reduce the number of latches used in the driver IC.
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公开(公告)号：US12112686B2
公开(公告)日：2024-10-08
申请号：US17419078
申请日：2021-05-21
CPC分类号： G09G3/32 , G09G3/2014 , G09G3/30 , G09G2320/0271 , G09G2320/0626 , G09G2360/16
摘要： 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：US12112672B2
公开(公告)日：2024-10-08
申请号：US17608141
申请日：2021-08-24
发明人： Haoran Li
IPC分类号： G09G3/20
CPC分类号： G09G3/20 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2330/021
摘要： 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：US12132307B2
公开(公告)日：2024-10-29
申请号：US17603073
申请日：2021-07-29
发明人： Haoran Li
摘要： 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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8.发明授权公开(公告)号：US11790825B2
公开(公告)日：2023-10-17
申请号：US17295481
申请日：2021-04-20
CPC分类号： G09G3/2018 , G09G3/3406 , G09G2320/0233 , G09G2320/064 , G09G2320/066 , G09G2320/0633 , G09G2330/021
摘要： A backlight brightness control method, a backlight brightness control device, and a display equipment are provided. By using a constant current integrated circuit to input constant current to backlight sources in backlight partitions, uniformity of backlight brightness is allowed to be improved. By determining a target peak current inputted to the backlight sources in the backlight partitions according to a grayscale level of partition images, not only can the backlight brightness required by a high grayscale level be ensured, but fine adjustment of the backlight brightness under a low grayscale level can also be ensured.
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公开(公告)号：US11756478B2
公开(公告)日：2023-09-12
申请号：US17417793
申请日：2021-05-24
发明人： Haoran Li
CPC分类号： G09G3/32 , G09G3/342 , G09G2300/0819 , G09G2320/0223 , G09G2330/021
摘要： A driving circuit, a display panel, and a panel are provided. The driving circuit includes a substrate and signal lines and a plurality of load components disposed on the substrate. The plurality of load components are distributed along a first direction. Each of the load components is connected to the signal lines. The signal lines include at least two signal input terminals. Signals are loaded to signal lines through the at least two signal input terminals.
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公开(公告)号：US20220351670A1
公开(公告)日：2022-11-03
申请号：US17252204
申请日：2020-11-16
发明人： Haoran Li
IPC分类号： G09G3/32
摘要： A display panel and a driving method thereof are provided, including a time schedule controller and at least one driver integrated circuit (driver IC). Pulse width modulation (PCM) data between the time schedule controller and the driver IC is transmitted in a decoded manner, and pulse amplitude modulation (PAM) data is transmitted in an undecoded manner, reducing a transmission rate between the time schedule controller and the driver IC, and thereby reducing or eliminating risks of electromagnetic interference (EMI). Furthermore, using this transmission method can reduce the number of latches used in the driver IC.
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