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公开(公告)号：US20230343266A1
公开(公告)日：2023-10-26
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：US20220293032A1
公开(公告)日：2022-09-15
申请号：US16972891
申请日：2020-10-22
Inventor： Wenfang LI , Yuhua CHANG
IPC: G09G3/20
Abstract: An electronic equipment and a display driving system are provided. The display driving system includes a power management circuit and a timing circuit electrically connected to the power management circuit. The power management circuit receives an input voltage and output a working voltage according to the input voltage. The timing circuit receives the working voltage and output a predetermined command to the power management circuit. The power management circuit is further configured to select a predetermined working mode according to the predetermined command such that the power management circuit works in the predetermined working mode.
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公开(公告)号：US20210366337A1
公开(公告)日：2021-11-25
申请号：US16619473
申请日：2019-11-14
Inventor： Wenfang LI , Dan CAO
Abstract: The present disclosure proposes a power management chip, a driving method, and a driving system. The power management chip includes a register, a signal receiving circuit configured to receive a second voltage data, and a processing circuit configured to examine the first voltage data and the second voltage data and write the second voltage data into the register when the first voltage data and the second voltage data are different. After the signal receiving circuit receives the second voltage data, the processing circuit examines the first voltage data and the second voltage data to prevent the first voltage data from being modified. This prevents the abnormality of the display and solves the above-mentioned problem of a conventional power management chip, whose data may be modified such that the display panel abnormally displays.
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公开(公告)号：US20210152177A1
公开(公告)日：2021-05-20
申请号：US16627301
申请日：2019-11-27
Inventor： Wenfang LI , Xianming ZHANG
IPC: H03K19/0185 , G09G3/20
Abstract: The present disclosure discloses a level shifter circuit and a display panel. The level shifter circuit includes a level shifter module, a compare module connected to the level shifter module. The level shifter module includes a level shifter unit, a control unit connected to the level shifter unit. The level shifter unit receives a first voltage signal and a second voltage signal and generates a level shifter result signal according to the first voltage signal and the second voltage signal. The compare module is configured to compare a voltage corresponding to the level shifter result signal with a reference voltage at a predetermined time and generate a comparison result. The control unit stops the shifter unit when the voltage corresponding to the level shifter result signal is less than the reference voltage. The present disclosure prevents the display panel from being damaged by short circuiting.
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公开(公告)号：US20240296761A1
公开(公告)日：2024-09-05
申请号：US17295452
申请日：2021-04-26
Inventor： Wenfang LI
CPC classification number: G09G3/006 , G01K7/22 , G09G3/36 , G09G2320/041
Abstract: The embodiments of the present disclosure provide a control circuit, a display device, and electronic equipment. The control circuit includes a temperature detection unit, a control unit, a voltage output unit, and a thin-film transistor. The display device includes anyone control circuit described above. The electronic equipment includes anyone control circuit described above. The embodiments of the present disclosure perform temperature compensation on the output voltage, so that the liquid crystal display panel can achieve better display effects at different temperature conditions.
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Patent Agency Ranking
公开(公告)号：US20240127736A1
公开(公告)日：2024-04-18
申请号：US17295149
申请日：2021-04-30
Inventor： Wenfang LI
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0842 , 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：US20240029614A1
公开(公告)日：2024-01-25
申请号：US17419458
申请日：2021-05-19
Inventor： Wenfang LI
IPC: G09G3/20
CPC classification number: G09G3/2007 , G09G2340/00 , G09G2320/0626 , G09G2320/0242
Abstract: A display device and a driving method are proposed to obtain the gray value difference data of the display device when the gray value of the display device changes. So, the display device could determine the corresponding compensation data according to the gray value difference of the display device and then the compensation data and the driving data are used to drive the display device. In this way, the driving data are compensated when the display device has a variance of gray value such that the charging operation becomes sufficient to charge the display device. For example, the charging speed becomes faster to allow the display device to reach sufficient luminance such that the issues of color shifts or insufficient luminance could be avoided.
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公开(公告)号：US20240021140A1
公开(公告)日：2024-01-18
申请号：US17422214
申请日：2021-05-31
Inventor： Wenfang LI
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2320/0626
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：US20220406241A1
公开(公告)日：2022-12-22
申请号：US17255505
申请日：2020-12-18
Inventor： Wenfang LI
Abstract: The present disclosure provides a display device. The display device includes at least one display panel including at least one light-emitting diode (LED) light board, a drive control module connected to the LED light board, and a detecting module respectively connected to the LED light board and the drive control module. The LED light board includes at least one LED. The drive control module is configured to drive the LED of the LED light board to display.
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公开(公告)号：US20220319384A1
公开(公告)日：2022-10-06
申请号：US16972901
申请日：2020-10-22
Inventor： Wenfang LI
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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