Patents by Inventor Liugang Zhou
Liugang Zhou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240386859Abstract: 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).Type: ApplicationFiled: November 2, 2021Publication date: November 21, 2024Inventors: Yanting HUANG, Liugang ZHOU, Lei GUO, Jianwei SUN, Kai CHEN
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Publication number: 20240347016Abstract: A method for driving a display panel and a display device, the method includes: acquiring an original grayscale value of each sub-pixel in an mth row and a target grayscale value corresponding to a data voltage input to each sub-pixel in an (m?1)th row m being an integer greater than 1; if, in a same column, the original grayscale value of the sub-pixel in the mth row is larger than the target grayscale value corresponding to the data voltage input to the sub-pixel in the (m?1)th row, determining a target grayscale value of each sub-pixel in the mth row according to the original grayscale value of the sub-pixel in the mth row and the target grayscale value of the sub-pixel in the (m?1)th row inputting a data voltage to a data line in the display panel according to the target grayscale value of each sub-pixel in the mth row.Type: ApplicationFiled: January 3, 2023Publication date: October 17, 2024Inventors: Qing LI, Panhui ZHAO, Liugang ZHOU, Ke DAI, Jun WANG, Jianwei SUN, Yunyun LIANG, Yanting HUANG, Yu QUAN, Yunlu CHEN, Zhengru PAN, Jiantao LIU
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Publication number: 20240321226Abstract: 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).Type: ApplicationFiled: May 25, 2022Publication date: September 26, 2024Inventors: Huiming WANG, Liugang ZHOU, Chunyang NIE, Wenlong FENG, Yue YANG, Jianwei SUN, Heng ZHANG
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Publication number: 20240304130Abstract: A driving method of a display panel and a display apparatus provided by embodiments of the present disclosure include: when a display mode switching startup instruction is received, a non-counting state is entered. The display panel is driven to display a first set picture, and a current display mode is switched to a target display mode. When a data mode switching completing instruction is received, a counting state is entered.Type: ApplicationFiled: May 16, 2022Publication date: September 12, 2024Inventors: Yanting HUANG, Ke DAI, Chunyang NIE, Liugang ZHOU, Yunlu CHEN, Qing LI, Jun WANG, Zhi MENG, Wei SUN, Tianxun XIU, Yue YANG
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Publication number: 20240298403Abstract: The present disclosure provides a circuit board, a chip on film, a display apparatus and a bonding method. The circuit board has a plurality of bonding regions for bonding with a chip on film, each bonding region includes: a plurality of first pins extending along a first direction and sequentially arranged along a second direction; and at least one first alignment mark group on an arrangement path along which the plurality of first pins are arranged and configured to be aligned with a second alignment mark group of the chip on film in a buckled way, so that the plurality of first pins are bonded and attached to second pins of the chip on film in one-to-one correspondence.Type: ApplicationFiled: May 13, 2021Publication date: September 5, 2024Inventors: Yunyun LIANG, Changcheng LIU, Jiantao LIU, Liugang ZHOU, Jianwei SUN, Liu HE, Jun WANG, Qing LI, Yu QUAN, Yanting HUANG, Yunlu CHEN, Zhengru PAN
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Publication number: 20240249658Abstract: Provided are a method for driving a display panel, and a display device. The method includes: obtaining a gray scale value of each sub-pixels in a current row and a gray scale value of each sub-pixels in a previous row; determining a target gray scale value of each sub-pixel in the current row according to the gray scale value of each sub-pixel in the current row, the gray scale value of each sub-pixel in the previous row, and a target compensation value in a predetermined target compensation lookup table; and inputting a data voltage into a data line in the display panel according to the target gray scale value of each sub-pixel in the current row, to charge with a corresponding data voltage to each sub-pixel in the current row.Type: ApplicationFiled: February 24, 2022Publication date: July 25, 2024Inventors: Liugang ZHOU, Jinshui CHEN, Jianwei SUN, Zhihua SUN, Wu WANG, Jun WANG, Jiao LIU, Jie DENG, Jiantao LIU
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Publication number: 20240249659Abstract: A method and a circuit for driving a display panel, and a display device are disclosed. The display panel includes rows of sub-pixels. The method includes a display process, which includes: generating an initial driving signal for each row of sub-pixels according to image information of an image to be displayed; adjusting the initial driving signal for each row of sub-pixels according to a compensation gain of each row of sub-pixels, so as to obtain a target driving signal, the compensation gain of each row of sub-pixels is an actual brightness coefficient of the row of sub-pixels with respect to a reference row of sub-pixels during the display panel displaying an image with a test gray scale; and driving each row of sub-pixels to display according to the target driving signal for the row of sub-pixels, so as to enable each row of sub-pixels to reach target brightness.Type: ApplicationFiled: February 28, 2022Publication date: July 25, 2024Inventors: Jianwei SUN, Liugang ZHOU, Jiao LIU, Jiantao LIU, Jun WANG, Yunyun LIANG, Qing LI
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Publication number: 20240233663Abstract: Disclosed are a method for adjusting a signal of a display panel, a time controller integrated circuit, a display panel, and a storage medium. The method includes: converting first data into a first data voltage signal using a first data voltage, in response to a set condition being reached, sending the first data voltage signal to a chip on film integrated circuit, the chip on film integrated circuit identifies the first data voltage signal to obtain a second data; acquiring the second data from the chip on film integrated circuit, determining that the chip on film integrated circuit fails to identify the first data in response to the second data being different from the first data; and adjusting the first data voltage until a second data voltage signal converted from the first data using a second data voltage after adjustment being successfully identified by the chip on film integrated circuit.Type: ApplicationFiled: March 3, 2021Publication date: July 11, 2024Inventors: Yunlu CHEN, Changcheng LIU, Liugang ZHOU, Liu HE, Kun YANG, Jianwei SUN, Jun WANG, Yunyun LIANG, Qing LI, Yu QUAN, Yanting HUANG, Zhengru PAN, Bingbing YAN, Jiantao LIU
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Patent number: 12027134Abstract: 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).Type: GrantFiled: April 20, 2021Date of Patent: July 2, 2024Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Shou Li, Xingliang Li, Liugang Zhou, Jian Zhang, Zhanchang Bu, Hui Zhang, Hongli Yue
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Publication number: 20240135892Abstract: Disclosed are a method for adjusting a signal of a display panel, a time controller integrated circuit, a display panel, and a storage medium. The method includes: converting first data into a first data voltage signal using a first data voltage, in response to a set condition being reached, sending the first data voltage signal to a chip on film integrated circuit, the chip on film integrated circuit identifies the first data voltage signal to obtain a second data; acquiring the second data from the chip on film integrated circuit, determining that the chip on film integrated circuit fails to identify the first data in response to the second data being different from the first data; and adjusting the first data voltage until a second data voltage signal converted from the first data using a second data voltage after adjustment being successfully identified by the chip on film integrated circuit.Type: ApplicationFiled: March 3, 2021Publication date: April 25, 2024Inventors: Yunlu CHEN, Changcheng LIU, Liugang ZHOU, Liu HE, Kun YANG, Jianwei SUN, Jun WANG, Yunyun LIANG, Qing LI, Yu QUAN, Yanting HUANG, Zhengru PAN, Bingbing YAN, Jiantao LIU
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Publication number: 20240105140Abstract: 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).Type: ApplicationFiled: April 20, 2021Publication date: March 28, 2024Inventors: Shou LI, Xingliang LI, Liugang ZHOU, Jian ZHANG, Zhanchang BU, Hui ZHANG, Hongli YUE
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Patent number: 11847991Abstract: 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.Type: GrantFiled: May 11, 2021Date of Patent: December 19, 2023Assignees: Hefei BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yunyun Liang, Liugang Zhou, Ke Dai, Liu He, Jianwei Sun, Jun Wang, Qing Li, Yu Quan
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Patent number: 11626059Abstract: 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.Type: GrantFiled: November 6, 2019Date of Patent: April 11, 2023Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chunheng Zhang, Yizhan Han, Jun Wang, Jianwei Sun, Liugang Zhou
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Publication number: 20220415280Abstract: 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.Type: ApplicationFiled: May 11, 2021Publication date: December 29, 2022Inventors: Yunyun LIANG, Liugang ZHOU, Ke DAI, Liu HE, Jianwei SUN, Jun WANG, Qing LI, Yu QUAN
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Patent number: 11497096Abstract: 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.Type: GrantFiled: August 11, 2020Date of Patent: November 8, 2022Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Jianwei Sun, Liugang Zhou, Ke Dai, Yizhan Han, Yulong Xiong, Tao Li, Xiaofeng Yin, Maoyang Zhu, Pengjun Fang
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Publication number: 20220301468Abstract: A control method of a display apparatus is provided. The method includes: obtaining to-be-displayed data; starting to generate first image data of a first display panel based on the to-be-displayed data; sending image data to a second processing component based on the to-be-displayed data; and after generating the first image data, delaying sending the first image data to the first display panel based on a first difference between second duration taken by the second processing component to generate second image data and first duration taken by a first processing component to generate the first image data.Type: ApplicationFiled: January 30, 2022Publication date: September 22, 2022Inventors: Jun WANG, Liugang ZHOU, Jianwei SUN, Zhengru PAN, Liu HE, Qing LI, Yunyun LIANG, Yu QUAN, Yanting HUANG, Yunlu CHEN
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Patent number: 11380240Abstract: 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.Type: GrantFiled: June 22, 2020Date of Patent: July 5, 2022Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: 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
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Patent number: 11348547Abstract: 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.Type: GrantFiled: December 3, 2019Date of Patent: May 31, 2022Assignees: Hefei BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yulong Xiong, Liugang Zhou, Tao Li, Yizhan Han, Jianwei Sun, Liu He, Yunyun Liang
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Publication number: 20220076645Abstract: A pixel driving circuit, a pixel driving method, an array substrate and a display device are provided. The pixel driving circuit includes a plurality of pixel regions; a pixel electrode array; and a thin film transistor switch, where at least one thin film transistor switch is arranged in each pixel region; the polarities of input voltage signals to two adjacent pixel electrodes are opposite in a same row of pixel electrodes; M rows of pixel electrodes are divided into Q pixel groups, including a first pixel group, a second pixel group and (Q?2) third pixel groups located between the first pixel group and the second pixel group, and each third pixel group includes at least q rows of pixel electrodes; and in the same column of pixel electrodes, the polarities of input voltage signals to the pixel electrodes in the same pixel group are the same, and the polarities of input voltage signals to the pixel electrodes of two adjacent pixel groups are opposite.Type: ApplicationFiled: August 27, 2021Publication date: March 10, 2022Inventors: Bingbing YAN, Ke DAI, Liugang ZHOU, Chunyang NIE
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Patent number: 11250802Abstract: 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.Type: GrantFiled: July 27, 2018Date of Patent: February 15, 2022Assignees: Hefei Boe Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Liugang Zhou, Yifang Chu, Shou Li