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公开(公告)号：US11195451B2
公开(公告)日：2021-12-07
申请号：US16965917
申请日：2019-12-18
Inventor： Yizhan Han , Liugang Zhou , Jianwei Sun , Tao Li , Yulong Xiong , Chunheng Zhang , Qing Li
IPC: G09G3/20
Abstract: 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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22.发明申请公开(公告)号：US20210225308A1
公开(公告)日：2021-07-22
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：US10510283B2
公开(公告)日：2019-12-17
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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24.发明授权公开(公告)号：US10438557B2
公开(公告)日：2019-10-08
申请号：US15720109
申请日：2017-09-29
Inventor： Jianming Wang , Liugang Zhou , Shou Li , Luqiang Guo , Jian Zhang , Chao Zhang
IPC: G09G3/36
Abstract: Provided are voltage compensation circuit, voltage compensation method thereof, display panel and display apparatus. The voltage compensation circuit includes counting unit, voltage generation unit, compensation voltage output unit and power supply unit; the counting unit is connected with timing control unit of a display panel and the voltage generation unit, and configured to count rising edges output from the timing control unit and output corresponding control signal based on the counted number of rising edges; the voltage generation unit is connected with the compensation voltage output unit and configured to output corresponding control voltage based on the control signal output from the counting unit; the compensation voltage output unit is connected with feedback terminal and voltage output terminal of the power supply unit and low level terminal, and configured to output corresponding compensation voltage to the voltage output terminal based on the control voltage output from the voltage generation unit.
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公开(公告)号：US20150085203A1
公开(公告)日：2015-03-26
申请号：US14342161
申请日：2013-12-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wenbo Li , Liugang Zhou , Naifu Wu
IPC: G02F1/13 , G02F1/1343 , G06F3/044 , A61B3/113 , G02F1/1333 , G02F1/1335
CPC classification number: G02F1/1323 , A61B3/113 , G02F1/13338 , G02F1/133512 , G02F1/133514 , G02F1/13439 , G06F3/0412 , G06F3/044
Abstract: Embodiments of the present invention provide a double-vision touch display device and a manufacturing method thereof, and the double-vision touch display device comprises: a touch circuit; a grating, wherein, the touch circuit comprises: first touch electrodes, second touch electrodes, and a touch control module, and the first touch electrodes cross with and are insulated from the second touch electrodes, and the first touch electrodes and the second touch electrodes are connected with the touch control module, respectively, and the grating is made from an opaque conductive material and formed with the first touch electrodes synchronously.
Abstract translation: 本发明的实施例提供一种双视觉触摸显示装置及其制造方法，双视触摸显示装置包括：触摸电路; 光栅，其中，所述触摸电路包括：第一触摸电极，第二触摸电极和触摸控制模块，并且所述第一触摸电极与所述第二触摸电极交叉并与所述第二触摸电极绝缘，并且所述第一触摸电极和所述第二触摸电极 分别与触摸控制模块连接，并且光栅由不透明导电材料制成并与第一触摸电极同步地形成。
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Patent Agency Ranking
公开(公告)号：US12293736B2
公开(公告)日：2025-05-06
申请号：US18696296
申请日：2022-09-20
Inventor： Liugang Zhou , Huiming Wang , Jianwei Sun , Jun Wang , Yunyun Liang , Qing Li , Yu Quan , Yanting Huang , Yunlu Chen , Zhengru Pan
Abstract: Disclosed are a driving method of a display panel and a display device. The driving method of the display panel includes: obtaining display data of a current display frame (S100); and inputting a data voltage to a data line according to the display data, so that the corresponding data voltages are charged into sub-pixels electrically connected to the data line (S200), where the data voltages inputted on the data line are divided into a plurality of voltage groups, each voltage group includes at least two adjacent data voltages, the polarities corresponding to the data voltages in a same voltage group are the same, the polarities corresponding to the data voltages of the two adjacent voltage groups inputted into a same data line are different, and the polarities of the corresponding voltage groups on the two adjacent data lines are different.
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公开(公告)号：US11250802B2
公开(公告)日：2022-02-15
申请号：US16328934
申请日：2018-07-27
Inventor： Liugang Zhou , Yifang Chu , Shou Li
IPC: G09G3/36
Abstract: The disclosure discloses a method and apparatus for driving a display panel, and a display device. A method for driving a display panel according to an embodiment of this disclosure includes: determining a charging length of time of the current row of pixels; determining a common voltage value corresponding to the charging length of time; and driving the current row of pixels using the common voltage value.
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公开(公告)号：US11114013B2
公开(公告)日：2021-09-07
申请号：US17094737
申请日：2020-11-10
Inventor： 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: G09G3/20
Abstract: 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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公开(公告)号：US11087705B2
公开(公告)日：2021-08-10
申请号：US15776086
申请日：2017-08-29
Inventor： Liugang Zhou , Jianming Wang , Shou Li , Tao Li , Yuan Shi
IPC: G09G3/36
Abstract: A driving method of a display panel, a driving circuitry of a display panel and a display device are provided. The display panel includes Y gate lines, the Y gate lines are divided into a plurality of gate line groups based on a scanning sequence of the Y gate lines, and each gate line group includes at least one gate line; the driving method includes: determining an ith gate line to be scanned; adjusting an original charging duration of a scanning signal corresponding to the ith gate line to an adjustment charging duration, where the adjustment charging duration of every gate line in each gate line group are identical, and the adjustment charging durations of respective gate line groups gradually increase in a direction away from a source driver; and outputting the scanning signal corresponding to the ith gate line to the ith gate line, based on the adjustment charging duration of the ith gate line.
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公开(公告)号：US11069320B2
公开(公告)日：2021-07-20
申请号：US16668211
申请日：2019-10-30
Inventor： Yizhan Han , Ke Dai , Liugang Zhou
IPC: G09G5/00
Abstract: A chip-on-film and a display device. The chip-on-film includes a substrate, at least one chip on the substrate, input terminals on the substrate, and output terminals on the substrate. The input terminals are configured to receive printed-circuit-board signals. The output terminals include data signal output sub-terminals configured to output display panel data signals. The output terminals lack an output sub-terminal configured to output a display panel scanning signal.
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