Patents by Inventor Yunyun LIANG
Yunyun LIANG 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: 20250006151Abstract: 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.Type: ApplicationFiled: September 20, 2022Publication date: January 2, 2025Inventors: Liugang ZHOU, Huiming WANG, Jianwei SUN, Jun WANG, Yunyun LIANG, Qing LI, Yu QUAN, Yanting HUANG, Yunlu CHEN, Zhengru PAN
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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: 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: 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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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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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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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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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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Patent number: 11250798Abstract: 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.Type: GrantFiled: August 14, 2020Date of Patent: February 15, 2022Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jun Wang, Liugang Zhou, Jingang Liu, Ke Dai, Xiaofeng Yin, Jianwei Sun, Liu He, Zhenlin Qu, Qing Li, Yunyun Liang, Yulong Xiong, Yu Quan
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Patent number: 11114013Abstract: 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.Type: GrantFiled: November 10, 2020Date of Patent: September 7, 2021Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: 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
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Publication number: 20210225308Abstract: 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: ApplicationFiled: December 3, 2019Publication date: July 22, 2021Applicants: 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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Patent number: 11062669Abstract: 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.Type: GrantFiled: August 17, 2020Date of Patent: July 13, 2021Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.Inventors: 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
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Publication number: 20210150962Abstract: 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.Type: ApplicationFiled: November 10, 2020Publication date: May 20, 2021Inventors: 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
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Publication number: 20210097950Abstract: 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.Type: ApplicationFiled: August 17, 2020Publication date: April 1, 2021Inventors: 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
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Publication number: 20210049969Abstract: 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.Type: ApplicationFiled: August 14, 2020Publication date: February 18, 2021Inventors: Jun WANG, Liugang ZHOU, Jingang LIU, Ke DAI, Xiaofeng YIN, Jianwei SUN, Liu HE, Zhenlin QU, Qing LI, Yunyun LIANG, Yulong XIONG, Yu QUAN
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Publication number: 20210012699Abstract: 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: ApplicationFiled: June 22, 2020Publication date: January 14, 2021Inventors: 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