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公开(公告)号：US11847985B2
公开(公告)日：2023-12-19
申请号：US17255000
申请日：2020-12-18
Inventor： Wenfang Li
IPC: G09G3/32 , G09G3/34 , H01L25/075
CPC classification number: G09G3/342 , G09G3/32 , H01L25/0753 , G09G2310/0264 , H01L2225/04
Abstract: The present application proposes a display device and a driving method thereof. The display device includes a display panel and a driving control module. The display panel includes first data lines and second data lines. The driving control module controls each of the first data lines and each of the second data lines to output a first data signal and a second data signal. A high electric potential period of the first data signal is within a low electric potential period of the second data signal. A high electric potential period of the second data signal is within a low electric potential period of the first data signal.
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公开(公告)号：US20210335302A1
公开(公告)日：2021-10-28
申请号：US16617306
申请日：2019-11-12
Inventor： Wenfang Li , Xianming Zhang
IPC: G09G3/36
Abstract: A gate driver on array (GOA) driving circuit including a power management IC and a level shifter circuit connected in order, wherein the level shifter circuit at least includes a first switch transistor, a second switch transistor, a detection unit, and a clock signal output terminal, the first switch transistor is connected to the second switch transistor, and the clock signal output terminal is configured to connect to the GOA circuit, and wherein the detection unit is connected to the first switch transistor and the second switch transistor respectively, configured to detect power consumption of the first switch transistor and the second switch transistor and feedback a detection result that is configured to control an on/off state of a signal output of the power management IC.
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13.发明授权公开(公告)号：US12175920B2
公开(公告)日：2024-12-24
申请号：US17422214
申请日：2021-05-31
Inventor： Wenfang Li
IPC: G09G3/32
Abstract: The present application discloses a driving circuit, a display panel and an electronic device. The driving circuit includes a voltage output module, a light-emitting device connected between the voltage output module and a second voltage terminal, and a brightness adjusting module connected between the light-emitting device and the voltage output module. In a light-emitting phase, the brightness adjusting module controls a frequency a first voltage signal outputted by the voltage output module applies to the light-emitting device such that the light-emitting device is changed between a light-emitting state and a non-light-emitting state.
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公开(公告)号：US12118920B2
公开(公告)日：2024-10-15
申请号：US17295149
申请日：2021-04-30
Inventor： Wenfang Li
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0842 , G09G2320/029 , G09G2320/041 , G09G2330/021
Abstract: A display panel and a driving method thereof are provided. The display panel includes a power supply module, a driving module, a current detection module, and a control module. The current detection module detects a driving current of the driving module and outputs a first detection signal when a driving current is greater than a threshold current. The control module receives the first detection signal, regulates and outputs a first data voltage equal to a driving voltage according to the first detection signal, and transmits the first data voltage into the driving module.
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公开(公告)号：US12118917B2
公开(公告)日：2024-10-15
申请号：US17600396
申请日：2021-07-26
Inventor： Wenfang Li
CPC classification number: G09G3/2096 , G09G3/2007 , G09G3/3611 , G09G2310/027 , G09G2320/0209 , G09G2320/103 , G09G2330/021 , G09G2340/00
Abstract: A driving system and a display panel are provided. The driving system includes a timing controller and a driving chip. The driving chip receives the video signal and processes the video signal to output a characteristic current or a regular current to the display panel. The driving chip outputs the characteristic current to the display panel when the driving chip receives the characteristic video signal and to output the regular current to the display panel when the driving chip receives the regular video signal, and the characteristic current is smaller than regular current. The driving system of the display panel according to the present disclosure could alleviate the capacitor coupling effect caused by the large voltage jump introduced by the huge gray value difference when the display panel in a frame transition and thus improve the horizontal crosstalk of the display panel.
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Patent Agency Ranking
公开(公告)号：US11948491B2
公开(公告)日：2024-04-02
申请号：US17426487
申请日：2021-06-08
Inventor： Wenfang Li
CPC classification number: G09G3/2007 , G09G3/3406 , G09G3/32 , G09G2320/0233 , G09G2360/16
Abstract: The present invention provides a grayscale controlling method and a display panel applied to the display panel including a backlight unit. The grayscale controlling method includes: in a frame time, acquiring a duration of a current driving current output to the backlight unit exceeding a predetermined current value, and then adjusting a grayscale value of the backlight unit as a target grayscale value.
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公开(公告)号：US11922852B2
公开(公告)日：2024-03-05
申请号：US16972901
申请日：2020-10-22
Inventor： Wenfang Li
CPC classification number: G09G3/2092 , G09G3/006 , G09G2330/028 , G09G2330/12
Abstract: A display device and a driving system thereof are provided. The driving system of the display device includes a control module, a voltage conversion module, and a detection module which are interconnected. The detection module is added in the driving system of the display device to ensure that the voltage conversion module outputs a stable target voltage when the voltage conversion module is operated normally.
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公开(公告)号：US11908359B2
公开(公告)日：2024-02-20
申请号：US17294800
申请日：2021-04-16
Inventor： Wenfang Li
CPC classification number: G09G3/006 , G09G2330/04 , H01L25/167
Abstract: The present disclosure provides a driving circuit and a display device. An output control module of the driving circuit includes a first resistor, a second resistor, a third resistor, and a switching control unit. The switching control unit connected in series with the third resistor is connected in parallel with the second resistor, and then connected in series with the first resistor. During a first state, the switching control unit is turned off, and the driving circuit outputs a voltage Vout1. During a second state, the switching control unit is turned on, and the driving circuit outputs a voltage Vout2. An absolute value of Vout2 is greater than an absolute value of Vout1.
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公开(公告)号：US20240029618A1
公开(公告)日：2024-01-25
申请号：US17609278
申请日：2021-09-07
Inventor： Zhisheng Li , Dan Cao , Wenfang Li
CPC classification number: G09G3/2074 , G09G3/2096 , G09G3/3607 , G09G3/3648 , G09G2320/0209 , G09G2330/021
Abstract: The present application provides a display panel and a controlling method thereof. The method includes: obtaining two grayscale values corresponding to two locations in a same frame, wherein two data voltages of the two locations are transmitted by the same data line; obtaining a grayscale threshold value, and determining a grayscale difference value according to the two grayscale values; when an absolute value of the grayscale difference value is greater than grayscale threshold value, obtaining a first voltage range, and determining the two data voltages corresponding to the two locations according to the first voltage range and the two grayscale values.
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公开(公告)号：US11735100B2
公开(公告)日：2023-08-22
申请号：US17255514
申请日：2020-12-18
Inventor： Wenfang Li
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2320/043 , G09G2320/0626
Abstract: The present disclosure provides a display panel and a driving method thereof. The display panel includes a power supply module configured to provide a drive current for the drive module, a drive module configured to output a drive current to drive the light-emitting module to emit light, a current detection module configured to detect the drive current and output detection signals to the control module according to the detection result, and a control module configured to adjust the grayscale value of the pixels of the display panel according to the detection signals.
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