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公开(公告)号：US12293733B2
公开(公告)日：2025-05-06
申请号：US18028328
申请日：2022-05-25
Inventor： Huiming Wang , Liugang Zhou , Chunyang Nie , Wenlong Feng , Yue Yang , Jianwei Sun , Heng Zhang
IPC: G09G3/36
Abstract: A drive method for a display panel (100) includes: obtaining display data corresponding to a current display frame, and a current refresh rate (S10); determining a target rate level corresponding to the current refresh rate according to the current refresh rate and prestored rate levels corresponding one-to-one to different refresh rate intervals (S20); and controlling sub-pixels in the display panel (100) to be charged with a data voltage according to the target rate level and the display data (S30).
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公开(公告)号：US12272327B2
公开(公告)日：2025-04-08
申请号：US18687600
申请日：2021-11-02
Inventor： Yanting Huang , Liugang Zhou , Lei Guo , Jianwei Sun , Kai Chen
Abstract: A driving method for a display panel (100), and a display apparatus. The method includes: acquiring display data of a current frame and display data of a previous frame (S10); determining whether the display data of the current frame is the same as the display data of the previous frame (S20); if not, converting a default gray scale voltage corresponding to at least one sub-pixel among default gray scale voltages corresponding to a default gray scale bit number carried by the display data of the current frame into a target gray scale voltage of a target gray scale bit number, and driving the display panel (100) to display (S30).
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3.发明授权公开(公告)号：US11497096B2
公开(公告)日：2022-11-08
申请号：US16990768
申请日：2020-08-11
Inventor： Jianwei Sun , Liugang Zhou , Ke Dai , Yizhan Han , Yulong Xiong , Tao Li , Xiaofeng Yin , Maoyang Zhu , Pengjun Fang
IPC: G02F1/1345 , H05B45/325 , G02F1/1362
Abstract: A source driver includes at least one data input terminal, a plurality of data output terminals, at least two control terminals and a plurality of source driving circuits. Each source driving circuit is connected to a data input terminal of the at least one data input terminal, a data output terminal of the plurality of data output terminals and the at least two control terminals. The source driving circuit is configured such that: the source driving circuit converts a format of a data signal from the data input terminal; and in response to one of different control signals that is received by all the at least two control terminals, the source driving circuit has a corresponding different output impedance, and transmits the converted data signal to the data output terminal.
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公开(公告)号：US11250764B2
公开(公告)日：2022-02-15
申请号：US16957748
申请日：2019-12-11
Inventor： Jianwei Sun , Liugang Zhou , Yizhan Han , Tao Li , Yulong Xiong
IPC: G09G3/20
Abstract: The present disclosure provides a mura compensation device, display panel, display device, and mura compensation method, which belongs to the field of panel technology. The mura compensation device includes a first flexible circuit board and a de-mura circuit, including a storage unit for storing mura compensation data, wherein the de-mura circuit is provided in the first flexible circuit board.
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5.发明申请公开(公告)号：US20180268753A1
公开(公告)日：2018-09-20
申请号：US15795867
申请日：2017-10-27
Inventor： Jianming Wang , Liugang Zhou , Ming Chen , Jieqiong Wang , Shou Li , Chao Zhang , Hao Zhu
IPC: G09G3/20
Abstract: The present disclosure discloses a grayscale signal compensation unit, a grayscale signal compensation method, a source driver, and a display apparatus. The grayscale signal compensation unit comprises: a compensation coefficient determination sub-unit configured to determine a compensation coefficient according to a position of a pixel to be driven; an inquiry sub-unit configured to inquire a reference compensation value corresponding to the initial grayscale signal according to a pre-stored grayscale compensation correspondence table for a row of pixels farthest from the source driving circuit, wherein the grayscale compensation correspondence table contains different grayscale signals and corresponding reference compensation values thereof; a calculation sub-unit configured to calculate an actual compensation value corresponding to the pixel to be driven according to the compensation coefficient and the inquired reference compensation value; and a compensation sub-unit configured to compensate for the initial grayscale signal according to the actual compensation value.
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Patent Agency Ranking
公开(公告)号：US12027134B2
公开(公告)日：2024-07-02
申请号：US17768828
申请日：2021-04-20
Inventor： Shou Li , Xingliang Li , Liugang Zhou , Jian Zhang , Zhanchang Bu , Hui Zhang , Hongli Yue
IPC: G09G3/36 , G02F1/1335 , G02F1/1362
CPC classification number: G09G3/3696 , G02F1/133512 , G02F1/133514 , G02F1/136286
Abstract: A display panel (20), a display device and a debugging method thereof are provided. The display panel (20) includes: a base substrate (1), including a display region (A) and a non-display region (B) surrounding the display region (A), the non-display region (B) including a binding region (C) located on one side of the display region (A); and a plurality of sub-pixels (2), located in the display region (A). Areas of pixel aperture regions of the plurality of sub-pixels (2) tend to increase in a direction from the binding region (C) to the display region (A).
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7.发明授权公开(公告)号：US11847991B2
公开(公告)日：2023-12-19
申请号：US17778125
申请日：2021-05-11
Inventor： Yunyun Liang , Liugang Zhou , Ke Dai , Liu He , Jianwei Sun , Jun Wang , Qing Li , Yu Quan
IPC: G09G3/36
CPC classification number: G09G3/3696 , G09G3/3614 , G09G2310/08 , G09G2320/0247 , G09G2330/021
Abstract: There is provided a voltage supply circuit, in which a signal output end of a power management integrated circuit, a signal input end of a transmission branch, and a signal input end of a voltage reduction branch are coupled to a first node; a signal output end of transmission branch and a signal output end of the voltage reduction branch are coupled to a second node; the power management integrated circuit supplies an initial voltage to the first node; the transmission branch is coupled to a control signal terminal, and switch between a conducting state and a cutoff state in response to control of a control signal, and write the initial voltage into the second node in the conducting state; and the voltage reduction branch performs voltage reduction on the initial voltage at the first node to obtain a reduced voltage to be written into the second node.
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公开(公告)号：US11250806B2
公开(公告)日：2022-02-15
申请号：US16768273
申请日：2019-12-18
Inventor： Yizhan Han , Jianwei Sun , Liugang Zhou , Xiaolong Suo
IPC: G09G3/36
Abstract: The present disclosure provides a common voltage regulating circuit and a common voltage regulating method, a display driving circuit and a display device, the common voltage regulating circuit is applied to a display panel, and the display panel includes a pixel electrode and a common electrode, the common voltage regulating circuit includes: a first regulating sub-circuit configured to provide a signal from a second signal input terminal to a first signal output terminal under the control of an enabling signal terminal in a power-on stage of the display panel; the first signal input terminal is configured to input a signal to be provided to the common electrode in a display stage of the display panel, the second signal input terminal is configured to input a signal to be provided to the pixel electrode in the power-on stage, the first signal output terminal is coupled with the common electrode.
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公开(公告)号：US11183131B2
公开(公告)日：2021-11-23
申请号：US16968532
申请日：2020-01-07
Inventor： Tao Li , Liugang Zhou , Ke Dai , Yizhan Han , Jianwei Sun , Yulong Xiong , Zhenlin Qu
IPC: G09G3/36
Abstract: A gray-scale drive table generating device is described that includes a sampling circuit configured to collect a first voltage between a drive electrode of a sub-pixel of a positive-frame and a common electrode and a second voltage between a drive electrode of a sub-pixel of a negative-frame and the common electrode in a display panel in each gray-scale; a processing circuit configured to generate a trigger signal when a voltage difference between the first voltage and the second voltage is greater than a voltage threshold; an adjustment circuit configured to adjust drive gray-scales of the sub-pixel of the positive-frame and/or the sub-pixel of the negative-frame in response to the trigger signal to make the voltage difference less than the voltage threshold; and a recording circuit configured to generate an adjusted gray-scale drive table according to the drive gray-scales of the sub-pixel of the positive-frame and the sub-pixel of the negative-frame in each gray-scale.
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公开(公告)号：US11062669B2
公开(公告)日：2021-07-13
申请号：US16994891
申请日：2020-08-17
Inventor： Ke Dai , Yunyun Liang , Liugang Zhou , Zhenlin Qu , Liu He , Qing Li , Jun Wang , Yu Quan , Xiaofeng Yin , Liwei Zhou , Lin Zhang , Tao Li , Yulong Xiong
Abstract: The present disclosure provides a driving circuit and driving method for a liquid crystal display panel, and a display device. The driving circuit includes: a signal collector, configured to collect a backlight control signal; and a timing control chip, configured to determine whether a BLU is in the bright state time period or in the dark state time period, and retrieve a first gate control signal from a memory chip and output the first gate control signal to a gate driving circuit, when determining that the BLU is in the bright state time period, or retrieve a second gate control signal from the memory chip and output the second gate control signal to the gate driving circuit, when determining that the BLU is in the dark state time period.
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