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公开(公告)号：US11004414B2
公开(公告)日：2021-05-11
申请号：US16241331
申请日：2019-01-07
Inventor： Bingbing Yan , Liugang Zhou , Wenwu Lu , Xueqin Wei , Lixin Zhu , Shenghua Hu
IPC: G09G3/36 , G02F1/1345
Abstract: A display device and a method for driving the same are provided. The display device includes an array substrate and a data driving circuit, the array substrate includes a plurality of data lines divided into multiple groups, each group includes at least two data lines, first ends of the data lines in each group are connected together by the data driving circuit during a first charge sharing phase of each scanning period, the array substrate further includes a plurality of switches; the display device further includes a control circuit configured to output a control signal during a second charge sharing phase of each scanning period, each switch is turned on according to the control signal to connect second ends of corresponding data lines in corresponding group; in each scanning period, the first charge sharing phase and the second charge sharing phase are at least partially overlapped with each other.
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公开(公告)号：US11626059B2
公开(公告)日：2023-04-11
申请号：US16675386
申请日：2019-11-06
Inventor： Chunheng Zhang , Yizhan Han , Jun Wang , Jianwei Sun , Liugang Zhou
IPC: G09G3/20
Abstract: A display device comprising a plurality of pixels arranged in multiple rows and multiple columns. The multiple pixel columns are connected with a plurality of source signal lines respectively. The pixels of odd-numbered rows in the same pixel column are connected with the source signal lines on a first side of the pixel column. The pixels of even-numbered rows in the same pixel column are connected with the source signal lines on a second side of the pixel column opposite the first side. A display control method comprising the steps of determining and storing target pixel potential data which comprises a target pixel potential for each of the plurality of source signal lines; and setting a potential of each source signal line as the target pixel potential corresponding to the source signal line in an interval zone between two adjacent frames.
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公开(公告)号：US11380240B2
公开(公告)日：2022-07-05
申请号：US16908283
申请日：2020-06-22
Inventor： Zhenlin Qu , Liugang Zhou , Ke Dai , Tao Li , Yulong Xiong , Yizhan Han , Jianwei Sun , Liu He , Yunyun Liang , Jun Wang , Qing Li , Xutong Chen , Liwei Zhou , Xiaofeng Yin
Abstract: The preset disclosure provides a display control method, a timing controller IC and a display device. The method includes: acquiring a preset grayscale voltage of a target pixel unit and a backlight brightness of a backlight region corresponding to the target pixel unit, in a current output display frame; outputting a first grayscale voltage to the target pixel unit if the backlight brightness of the corresponding backlight region is less than or equal to a first preset brightness value; outputting a second grayscale voltage to the target pixel unit if the backlight brightness of the corresponding backlight region is greater than the first preset brightness value; wherein the second grayscale voltage is greater than the first grayscale voltage, and both the second grayscale voltage and the first grayscale voltage are greater than the preset grayscale voltage.
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14.发明授权公开(公告)号：US11348547B2
公开(公告)日：2022-05-31
申请号：US16761593
申请日：2019-12-03
Inventor： Yulong Xiong , Liugang Zhou , Tao Li , Yizhan Han , Jianwei Sun , Liu He , Yunyun Liang
Abstract: The present disclosure provides a method and an apparatus for compensating the display voltage, a display apparatus and a display device, the method comprises acquiring, when performing an inversion operation with a polarity inversion signal for an arbitrary pixel, a preceding grayscale value and a subsequent grayscale value of the pixel, wherein the polarity inversion signal is configured to control the polarity of the pixel voltage of the pixel, the preceding grayscale value is a grayscale value of the pixel in a preceding frame before the inversion operation, and the subsequent grayscale value is the grayscale value of the pixel in a subsequent frame after the inversion operation. A compensated grayscale value is obtained from an inversion compensation table according to the preceding grayscale value and the subsequent grayscale value, wherein the inversion compensation table comprises a mapping relationship among the preceding grayscale value, the subsequent grayscale value and the compensated grayscale value. After displaying the subsequent frame after the inversion operation, the pixel voltage of the arbitrary pixel will be compensated.
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公开(公告)号：US11211027B2
公开(公告)日：2021-12-28
申请号：US16084027
申请日：2018-04-08
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Guangliang Shang , Liugang Zhou , Haoliang Zheng , Yaoqiu Jing , Mingfu Han , Seungwoo Han
IPC: G09G3/36
Abstract: The present disclosure is related to a driving circuit of a display panel. The driving circuit may include a turn-on voltage adjusting circuit. The turn-on voltage adjusting circuit may include a control subcircuit and a switching and voltage division subcircuit. The switching and voltage division subcircuit may include a switching subcircuit and a basic voltage division subcircuit. The switching subcircuit may be configured to perform voltage division of a signal outputted by the output terminal of the control subcircuit to form a voltage division feedback signal of the corresponding resolution under control of the control signal and output the voltage division feedback signal to the voltage division feedback node.
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Patent Agency Ranking
公开(公告)号：US11043153B2
公开(公告)日：2021-06-22
申请号：US16527560
申请日：2019-07-31
Inventor： Ke Dai , Tao Li , Liugang Zhou
Abstract: A control circuit board, an additional circuit board and a display device. The control circuit board includes a timing control circuit, the timing control circuit is configured to read a configuration code from a storage circuit on an additional circuit board outside the control circuit board, the configuration code includes a first code for configuring the timing control circuit, and the timing control circuit is further configured to generate, based on the first code, a control signal for controlling the display panel.
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公开(公告)号：US20200234622A1
公开(公告)日：2020-07-23
申请号：US16543125
申请日：2019-08-16
Inventor： Yulong Xiong , Liugang Zhou , Tao Li , Yizhan Han , Jianwei Sun , Liu He
IPC: G09G3/20
Abstract: A display driving device is disclosed. The display driving device includes: a data signal end for providing a data signal, a source line, and a switching circuit. The source line can transmit the data signal to a first pixel circuit and a second pixel circuit. Along a direction of the source line, a distance between the second pixel circuit and the data signal end is larger than a distance between the first pixel circuit and the data signal end. The switching circuit is between the data signal end and the source line, and can be turned on in response to a first control signal, and can be turned on in response to a second control signal. A turned-on time period of the switching circuit in response to the second control signal is longer than a turned-on time period of the switching circuit in response to the first control signal.
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公开(公告)号：US09847072B2
公开(公告)日：2017-12-19
申请号：US14346574
申请日：2013-07-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Liugang Zhou
CPC classification number: G09G5/003 , G09G3/20 , G09G2310/0243 , G09G2310/0251 , G09G2320/0257 , G09G2320/04
Abstract: An image sticking elimination circuit comprises signal module (11), switch control module (12) and switch module (13), the signal module (11) has input terminal connected to an enable signal and outputs first control signal according to the enable signal; the switch control module (12) receives the first control signal outputted from the signal module and outputs second control signal; the switch module (13) receives the second control signal outputted from the switch control module (12), and controls the connection or the disconnection between a first electrode (B) and a second electrode (C). By controlling the connection or disconnection of the circuits between the first electrode (B) and the second electrode (C) with the signal module (11), the switch control module (12) and the switch module (13), the charges at the two electrodes are neutralized rapidly by shorting out the first electrode (B) and the second electrode (C) when the display signal is off and the potentials at the two electrodes are equal to eliminate the phenomena of image sticking.
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公开(公告)号：US11250798B2
公开(公告)日：2022-02-15
申请号：US16994217
申请日：2020-08-14
Inventor： Jun Wang , Liugang Zhou , Jingang Liu , Ke Dai , Xiaofeng Yin , Jianwei Sun , Liu He , Zhenlin Qu , Qing Li , Yunyun Liang , Yulong Xiong , Yu Quan
Abstract: A display driving method includes: determining, by a timing controller, an actual grayscale value of a sub-pixel image in an X-th row and a Y-th column according to a preset grayscale value of a sub-pixel image in an (X−1)-th row and the Y-th column and a preset grayscale value of the sub-pixel image in the X-th row and the Y-th column of an image frame to be displayed. The image frame to be displayed includes J rows and Q columns of sub-pixel images. X is greater than or equal to 2, and is less than or equal to J. Y is greater than or equal to 1, and is less than or equal to Q, and X, Y, J, and Q are all integers.
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公开(公告)号：US11250751B2
公开(公告)日：2022-02-15
申请号：US16568751
申请日：2019-09-12
Inventor： Tao Li , Liugang Zhou , Ke Dai , Yizhan Han , Jianwei Sun , Yulong Xiong
Abstract: Some embodiments of the present disclosure provide a shift register unit, a gate driver, a driving method thereof and a display device. The shift register unit includes: an output circuit, configured to receive a clock signal and output the clock signal to an output signal terminal under control of a voltage of a pull-up control node; a pull-down control circuit, configured to receive a control voltage signal and control the voltage of the pull-up control node and a voltage of the output signal terminal according to the control voltage signal; and an output control circuit, configured to receive a first voltage signal and the control voltage signal, and control the voltage of the output signal terminal in response to the first voltage signal and the control voltage signal.
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