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公开(公告)号：US20210150962A1
公开(公告)日：2021-05-20
申请号：US17094737
申请日：2020-11-10
发明人： Qing LI , Liugang ZHOU , Ke DAI , Yizhan HAN , Liu HE , Yunyun LIANG , Jun WANG , Zhenlin QU , Jianwei SUN , Yulong XIONG , Tao LI , Yu QUAN , Xiaofeng YIN , Qian ZHOU , Pengjun FANG
IPC分类号： G09G3/20
摘要： A display driving device, a display driving method, a display module and a display device are provided. The display driving device includes: a PWM signal generating circuit configured to generate a PWM signal; a PWM signal acquisition circuit, configured to identify whether the PWM signal output by the PWM signal generating circuit is at a high level or a low level; a gamma voltage debugging circuit, configured to debug a gamma voltage to obtain a first group of gamma voltage reference data corresponding to the PWM signal at the high level and a second group of gamma voltage reference data corresponding to the PWM signal at the low level in each gray-scale image; and a gamma voltage switching circuit.
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2.发明申请公开(公告)号：US20210051780A1
公开(公告)日：2021-02-18
申请号：US16990768
申请日：2020-08-11
发明人： Jianwei SUN , Liugang ZHOU , Ke DAI , Yizhan HAN , Yulong XIONG , Tao LI , Xiaofeng YIN , Maoyang ZHU , Pengjun FANG
IPC分类号： H05B45/325 , G02F1/1362 , G02F1/1345
摘要： 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：US20210012699A1
公开(公告)日：2021-01-14
申请号：US16908283
申请日：2020-06-22
发明人： 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
摘要： 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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公开(公告)号：US20200013354A1
公开(公告)日：2020-01-09
申请号：US16479764
申请日：2018-11-23
发明人： Yizhan HAN , Shou LI , Liugang ZHOU , Tao LI , Yulong XIONG , Jianwei SUN
IPC分类号： G09G3/36
摘要： The disclosure discloses a display panel, a voltage adjustment method thereof, and a display device, and the display panel includes: at least two reference sub-pixels; a voltage compensation element coupled respectively with respective reference sub-pixels; and a power management element coupled with the voltage compensation element, wherein the voltage compensation element is configured to acquire valid values of pixel voltage of the respective reference sub-pixels when the at least two reference sub-pixels receive the same data voltage, and to generate a compensation signal of gate off voltage for the purpose of making the acquired valid values of the pixel voltage of the respective reference sub-pixels uniform; and the power management element is configured to adjust a voltage value of the gate off voltage according to the compensation signal of the gate off voltage.
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公开(公告)号：US20210049969A1
公开(公告)日：2021-02-18
申请号：US16994217
申请日：2020-08-14
发明人： Jun WANG , Liugang ZHOU , Jingang LIU , Ke DAI , Xiaofeng YIN , Jianwei SUN , Liu HE , Zhenlin QU , Qing LI , Yunyun LIANG , Yulong XIONG , Yu QUAN
摘要： 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：US20200211669A1
公开(公告)日：2020-07-02
申请号：US16568751
申请日：2019-09-12
发明人： Tao LI , Liugang ZHOU , Ke DAI , Yizhan HAN , Jianwei SUN , Yulong XIONG
摘要： 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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公开(公告)号：US20190094640A1
公开(公告)日：2019-03-28
申请号：US16019985
申请日：2018-06-27
发明人： Yizhan HAN , Zhonghou WU , Liugang ZHOU , Shou LI , Jianwei SUN , Yulong XIONG , Tao LI
IPC分类号： G02F1/1362 , H01L27/12 , G02F1/1343 , G02F1/1368
摘要： The disclosure provides an array substrate, a liquid crystal display panel, and a display device. The array substrate according to the disclosure includes: an underlying substrate, and a plurality of scan lines and a plurality of data lines, the scan lines and the data lines are arranged to intersect with each other on the underlying substrate, wherein at least one of the scan lines is connected with a capacitor for adjusting common electrode voltage, and the capacitor has one end connected with one of the scan lines, and the other end connected with the common electrode voltage.
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公开(公告)号：US20210225239A1
公开(公告)日：2021-07-22
申请号：US16957748
申请日：2019-12-11
发明人： Jianwei SUN , Liugang ZHOU , Yizhan HAN , Tao LI , Yulong XIONG
IPC分类号： G09G3/20
摘要： 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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公开(公告)号：US20210074201A1
公开(公告)日：2021-03-11
申请号：US16965917
申请日：2019-12-18
发明人： Yizhan HAN , Liugang ZHOU , Jianwei SUN , Tao LI , Yulong XIONG , Chunheng ZHANG , Qing LI
IPC分类号： G09G3/20
摘要： The present disclosure provides a voltage compensation circuit and a voltage compensation method, a display driving circuit and a display device. The voltage compensation circuit includes: a voltage analyzing sub-circuit and a gamma voltage generating sub-circuit. The voltage analyzing sub-circuit is coupled to the display panel and configured to obtain pixel voltages of target pixels in the image to be detected; judge whether the display panel is abnormal according to the pixel voltages; generate a compensation control signal in response to that the display panel is abnormal. The gamma voltage generating sub-circuit is coupled to the voltage analyzing sub-circuit and is configured to compensate a gamma voltage corresponding to the image to be detected according to the compensation control signal so as to enable the pixel voltages of the target pixels to be consistent.
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公开(公告)号：US20210043154A1
公开(公告)日：2021-02-11
申请号：US16968532
申请日：2020-01-07
发明人： Tao LI , Liugang ZHOU , Ke DAI , Yizhan HAN , Jianwei SUN , Yulong XIONG , Zhenlin QU
IPC分类号： G09G3/36
摘要： 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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