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公开(公告)号：US12057053B2
公开(公告)日：2024-08-06
申请号：US17280258
申请日：2021-03-12
Inventor： Xiong Hu , Yu Wu , Guangxing Xiao
CPC classification number: G09G3/2096 , G09G3/32 , G09G3/342 , G09G2320/045 , G09G2320/064
Abstract: A method of preventing a backlight module from overheating and a display device are provided. The method can prevent backlight partitions from having a long-time high-brightness operation and causing the backlight module to overheat by obtaining a driving current of each backlight partition in the backlight module, judging whether a brightness of each backlight partition in the backlight module exceeds a reference brightness, and adjusting the brightness of each backlight partition that exceeds the reference brightness to a target brightness.
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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 classification number: G09G3/32 , G09G3/2014 , G09G3/30 , G09G2320/0271 , G09G2320/0626 , G09G2360/16
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：US20240194156A1
公开(公告)日：2024-06-13
申请号：US17758978
申请日：2022-06-30
Inventor： Xiong Hu , Xiaolong Chen
CPC classification number: G09G3/3406 , G09G3/3607 , G09G2310/08 , G09G2320/0233
Abstract: A display device and an electronic equipment are provided. The display device includes a display panel, a backlight module, and a timing controller. By configuring pixel electrodes to have equal or approximately equal first voltages and second voltages when the backlight source is turned on or turned off, the voltages of the pixel electrodes can be prevented from being affected by the backlight. This further stabilizes a voltage difference between the pixel electrodes and the common electrode and improves brightness uniformity of the display panel.
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Patent Agency Ranking
公开(公告)号：US20240046888A1
公开(公告)日：2024-02-08
申请号：US17623000
申请日：2021-12-21
Inventor： Xiong Hu
IPC: G09G3/34
CPC classification number: G09G3/3406 , G09G2310/08 , G09G2320/0626
Abstract: The present application provides a display panel and a driving method thereof. The method of driving the display panel includes: acquiring a frequency state of the display panel; determining a target sub-backlight clock signal of a frame to be displayed according to a preset rule and a preset refresh rate of the frame to be displayed when the frequency state is a frequency conversion state, wherein a duration of the target sub-backlight clock signal is equal to a reciprocal of the preset refresh rate, and the target sub-backlight clock signal is used to drive a backlight plate in the display panel to emit light within the duration of the target sub-backlight clock signal.
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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: 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：US12020653B2
公开(公告)日：2024-06-25
申请号：US17623762
申请日：2021-12-27
Inventor： Xiong Hu , Yu Wu , Xiaolong Chen , Tao He
IPC: G09G3/34 , G02F1/13357 , G09G3/36 , G09G5/18
CPC classification number: G09G3/3406 , G02F1/133602 , G09G3/342 , G09G3/36 , G09G5/18 , G09G2310/08 , G09G2320/0626 , G09G2320/0646 , G09G2340/0435
Abstract: A display panel and a driving method thereof are provided. The driving method includes: acquiring a display synchronization signal, and according to it to determine a first backlight synchronization signal including a plurality of second pulses corresponding to a plurality of first pulses in the display synchronization signal; acquiring a display setting frequency greater than a minimum value of refresh rates of frame images, and according to it to determine a unit backlight clock signal, where a duration of the unit backlight clock signal is equal to of a reciprocal of the display setting frequency; and generating a third pulse between some two adjacent second pulses to drive a backlight plate to emit light.
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公开(公告)号：US20240119908A1
公开(公告)日：2024-04-11
申请号：US17623762
申请日：2021-12-27
Inventor： Xiong Hu , Yu Wu , Xiaolong Chen , Tao He
CPC classification number: G09G3/3406 , G09G3/36 , G09G2310/08 , G09G2320/0626
Abstract: A display panel and a driving method thereof are provided. The driving method includes: acquiring a display synchronization signal, and according to it to determine a first backlight synchronization signal including a plurality of second pulses corresponding to a plurality of first pulses in the display synchronization signal; acquiring a display setting frequency greater than a minimum value of refresh rates of frame images, and according to it to determine a unit backlight clock signal, where a duration of the unit backlight clock signal is equal to of a reciprocal of the display setting frequency; and generating a third pulse between some two adjacent second pulses to drive a backlight plate to emit light.
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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 classification number: G09G3/2018 , G09G3/3406 , G09G2320/0233 , G09G2320/064 , G09G2320/066 , G09G2320/0633 , G09G2330/021
Abstract: 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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