Patents by Inventor Wenchao Bao
Wenchao Bao 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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Patent number: 12288514Abstract: A display method, including: performing a full-screen display refresh on a display panel at a first refresh rate; meanwhile, setting a refresh factor to n, where n is a positive integer; refreshing the local area of the display panel at the second refresh rate; increasing the refresh factor by m, where m is a positive integer; determining whether the refresh factor is greater than or equal to a set value; if yes, performing the full-screen display refresh on the display panel at the first refresh rate; setting the refresh factor to n; and if no, continuing refreshing the same local area of the display panel at the second refresh rate; increasing the refresh factor by m, where the second refresh rate is greater than the first refresh rate, and the second refresh rate is an integer multiple of the first refresh rate.Type: GrantFiled: August 18, 2022Date of Patent: April 29, 2025Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wenchao Bao, Zhidong Yuan, Xiaolong Wei, Min He, Huihui Li
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Patent number: 12288525Abstract: A method of processing data, an electronic device, and a storage medium are provided. The method includes: acquiring voltage values of a plurality of sub-pixels to be detected in the pixel array; determining a plurality of sub-pixels to be compensated from the plurality of sub-pixels to be detected according to the voltage values of the plurality of sub-pixels to be detected, where differences between the voltage values of the plurality of sub-pixels to be compensated and voltage values of corresponding adjacent sub-pixels are greater than or equal to a first filtering threshold; determining at least one sub-pixel column to be compensated according to a position of the plurality of sub-pixels to be compensated in the pixel array; and performing a filtering compensation on the voltage values of a plurality of sub-pixels in the at least one sub-pixel column to be compensated based on a second filtering threshold.Type: GrantFiled: January 16, 2023Date of Patent: April 29, 2025Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Wenchao Bao, Miao Liu, Cheng Xu, Yao Zhang
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Patent number: 12288516Abstract: A display module includes a display panel, at least one bonding circuit board, a plurality of chip-on-films, and a plurality of buffer devices. The at least one bonding circuit board each include first differential lines, and a first differential line includes a P-polarity differential sub-line and an N-polarity differential sub-line. An end of a chip-on-film is connected to the first differential line, and the other end of the chip-on-film is connected to the display panel. The buffer devices are arranged on the bonding circuit board, a buffer device is connected to ends, proximate to the chip-on-film, of the P-polarity differential sub-line and the N-polarity differential sub-line, and the buffer device is configured to reduce signal reflection between the first differential line and the chip-on-film.Type: GrantFiled: June 24, 2022Date of Patent: April 29, 2025Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wenchao Bao, Yue Wu, Huihui Li, Miao Liu, Cheng Xu, Jingbo Xu
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Publication number: 20250095523Abstract: Embodiments of the present disclosure provide a compensating method and apparatus for a display panel, and a display device. The method includes: acquiring sensing voltages of a target sub-pixel and a sub-pixel set, where the sub-pixel set includes a plurality of first sub-pixels, and the first sub-pixels are disposed within a set range around the target sub-pixel and have the same color as the target sub-pixel; determining, based on the sensing voltages of the target sub-pixel and the sub-pixel set, whether the target sub-pixel belongs to a defective pixel; replacing the sensing voltage of the target sub-pixel by a sensing voltage of a normal pixel in the sub-pixel set if the target sub-pixel belongs to the defective pixel; and electrically compensating the target sub-pixel based on the replaced sensing voltage.Type: ApplicationFiled: January 6, 2023Publication date: March 20, 2025Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Song MENG, Wenchao BAO, Cheng XU, Miao LIU
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Publication number: 20250095563Abstract: A display method, including: performing a full-screen display refresh on a display panel at a first refresh rate; meanwhile, setting a refresh factor to n, where n is a positive integer; refreshing the local area of the display panel at the second refresh rate; increasing the refresh factor by m, where m is a positive integer; determining whether the refresh factor is greater than or equal to a set value; if yes, performing the full-screen display refresh on the display panel at the first refresh rate; setting the refresh factor to n; and if no, continuing refreshing the same local area of the display panel at the second refresh rate; increasing the refresh factor by m, where the second refresh rate is greater than the first refresh rate, and the second refresh rate is an integer multiple of the first refresh rate.Type: ApplicationFiled: August 18, 2022Publication date: March 20, 2025Inventors: Wenchao BAO, Zhidong YUAN, Xiaolong WEI, Min HE, Huihui LI
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Publication number: 20250095585Abstract: A driving method and an apparatus, and a storage medium are provided. The driving method is applied to a pixel drive circuit, the pixel drive circuit including a drive transistor, the drive transistor including a second electrode and a third electrode; and the method includes: applying a data voltage acquired based on a reference gamma curve to the third electrode of the drive transistor, and applying a preset voltage to the second electrode of the drive transistor; a lowest voltage of the reference gamma curve is greater than a lowest voltage of a standard gamma curve, and the preset voltage is less than or equal to the lowest voltage of the reference gamma curve.Type: ApplicationFiled: September 26, 2022Publication date: March 20, 2025Inventors: Yao ZHANG, Wenchao BAO, Xiaolong WEI, Miao LIU, Cheng XU, Qiang FEI
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Publication number: 20250078746Abstract: Provided is a method for sensing pixel internal data in a display device. The method includes: sensing pixel internal data for each line of pixel units to determine column sequence numbers of suspected abnormal pixel units in the line of pixel units; determining, based on a number of the suspected abnormal pixel units of each column sequence number in the at least three lines of pixel units, whether a sensing signal line corresponding to the column sequence number is an abnormal sensing signal line; and in a case that there is at least one abnormal sensing signal line, replacing pixel internal data of a column of pixel units corresponding to each abnormal sensing signal line with pixel internal data of at least one column of pixel units adjacent to the abnormal sensing signal line each time the pixel internal data of all pixel units is sensed.Type: ApplicationFiled: January 6, 2023Publication date: March 6, 2025Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Yao ZHANG, Wenchao BAO, Song MENG, Xiaolong WEI, Miao LIU, Cheng XU
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Publication number: 20250034310Abstract: A (co)polymer(A)-acrylic block copolymer obtainable by reacting reactants comprising an acrylic material with a (co)polymer(A) is disclosed. The (co)polymer(A) comprises a substantially terminal ethylenically unsaturated functional group. The acrylic material is reacted with the (co)polymer(A) so that the acrylic material bonds to the (co)polymer(A) via the substantially terminal ethylenically unsaturated functional group. The disclosure extends to a coating composition comprising the block copolymer; articles, such as a package, packaging, a vehicle, a structure, or parts thereof coated with the coating composition; and methods of making the same.Type: ApplicationFiled: November 21, 2022Publication date: January 30, 2025Applicant: PPG Industries Ohio, Inc.Inventors: Kareem Kaleem, Hanzhen Bao, Michael Jonathan Motala, Youssef Moussa, Wenchao Zhang, Carl Seneker
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Patent number: 12211426Abstract: An image dis play method applied to a display apparatus includes: establishing a correspondence table between a threshold voltage of a sub-pixel and a compensation voltage, the correspondence table including at least one adjustment interval, an adjustment interval including a first and second threshold voltage endpoint values, the first threshold voltage endpoint value being less than the second threshold voltage endpoint value; acquiring a threshold voltage of each sub-pixel; determining an adjustment interval in which the acquired threshold voltage is located according to the corresponding table; acquiring a compensation voltage corresponding to the acquired threshold voltage according to the correspondence table and the determined adjustment interval; and determining, in a case where the display apparatus is to display a black image, a data voltage required by each sub-pixel according to the acquired threshold voltage and the acquired compensation voltage.Type: GrantFiled: September 8, 2021Date of Patent: January 28, 2025Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Huihui Li, Wenchao Bao, Song Meng, Jingbo Xu
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Publication number: 20250006121Abstract: Provided is a compensation method for a display device. The method includes: acquiring first detection voltages of the plurality of subpixels during a first shutdown compensation process; acquiring first position indication information based on the first detection voltages of the plurality of subpixels; and determining first compensation data based on the first position indication information. The first position indication information indicates column positions of pixels to which a plurality of first subpixels of the plurality of subpixels belong. The first compensation data includes first threshold compensation voltages of the plurality of subpixels, and an absolute value of a difference between the first threshold compensation voltage of the first subpixel and a first reference value is less than an absolute value of a difference between a second threshold compensation voltage of the first subpixel in the first compensation data and the first reference value.Type: ApplicationFiled: July 28, 2022Publication date: January 2, 2025Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Huihui LI, Wenchao BAO, Song MENG, Jingbo XU, Miao LIU, Cheng XU
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Patent number: 12164201Abstract: The present disclosure provides a chip on film and a display device. The chip on film includes: a first end, wherein a first row of bonding terminals and a second row of bonding terminals are arranged on a first surface of the first end, the first row of bonding terminals and the second row of bonding terminals are spaced apart and insulated from each other, and the first row of bonding terminals is closer to a center of the chip on film than the second row of bonding terminals; and a plurality of leads, extending in a second direction and including a first part and a second part. A first end section of each lead of the first part serves as one of the first row of bonding terminals, a first end section of each lead of the second part serves as one of the second row of bonding terminals.Type: GrantFiled: September 17, 2021Date of Patent: December 10, 2024Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Huihui Li, Wenchao Bao, Song Meng
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Publication number: 20240402966Abstract: A display device includes: a display screen, a drive circuit, a first controller and a second controller. The display screen includes a first display region and a second display region. The drive circuit is configured to transmit a control signal to at least one of the first controller or the second controller. The first controller is configured to, responding to the control signal, perform a display control on the first display region. The second controller is configured to, responding to the control signal, perform a display control on the second display region. A display time difference between the first display region and the second display region is less than a threshold time period.Type: ApplicationFiled: June 29, 2022Publication date: December 5, 2024Inventors: Xiaolong WEI, Wenchao BAO, Song MENG, Yao ZHANG, Miao LIU, Cheng XU, Jingbo XU
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Patent number: 12148374Abstract: A control device includes a memory and a processor. The memory is configured to store a time comparison table. The processor is configured to determine whether a displayed image is a still image. When the displayed image is determined to be a still image, the time comparison table is queried for a corresponding still image judgment duration according to an average pixel level and a type of the still image.Type: GrantFiled: July 21, 2021Date of Patent: November 19, 2024Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Xiaolong Wei, Song Meng, Jingbo Xu, Pan Li, Wenchao Bao
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Publication number: 20240363074Abstract: A method of processing data, an electronic device, and a storage medium are provided. The method includes: acquiring voltage values of a plurality of sub-pixels to be detected in the pixel array; determining a plurality of sub-pixels to be compensated from the plurality of sub-pixels to be detected according to the voltage values of the plurality of sub-pixels to be detected, where differences between the voltage values of the plurality of sub-pixels to be compensated and voltage values of corresponding adjacent sub-pixels are greater than or equal to a first filtering threshold; determining at least one sub-pixel column to be compensated according to a position of the plurality of sub-pixels to be compensated in the pixel array; and performing a filtering compensation on the voltage values of a plurality of sub-pixels in the at least one sub-pixel column to be compensated based on a second filtering threshold.Type: ApplicationFiled: January 16, 2023Publication date: October 31, 2024Inventors: Wenchao Bao, Miao Liu, Cheng Xu, Yao Zhang
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Publication number: 20240321195Abstract: A display module includes a display panel, at least one bonding circuit board, a plurality of chip-on-films, and a plurality of buffer devices. The at least one bonding circuit board each include first differential lines, and a first differential line includes a P-polarity differential sub-line and an N-polarity differential sub-line. An end of a chip-on-film is connected to the first differential line, and the other end of the chip-on-film is connected to the display panel. The buffer devices are arranged on the bonding circuit board, a buffer device is connected to ends, proximate to the chip-on-film, of the P-polarity differential sub-line and the N-polarity differential sub-line, and the buffer device is configured to reduce signal reflection between the first differential line and the chip-on-film.Type: ApplicationFiled: June 24, 2022Publication date: September 26, 2024Inventors: Wenchao BAO, Yue WU, Huihui LI, Miao LIU, Cheng XU, Jingbo XU
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Patent number: 12094404Abstract: A display module includes a display panel, a power supply driver, a voltage signal line, a sampling resistor and a detection and control circuit. The voltage signal line is connected between the display panel and the power supply driver. The sampling resistor is connected in series with the voltage signal line. The detection and control circuit is connected to two ends of the sampling resistor and the power supply driver. The detection and control circuit is configured to: detect a voltage across the sampling resistor or a current flowing through the sampling resistor; and control the power supply driver to generate a driving voltage equal to a preset value lower than a voltage threshold, if determining that the voltage across the sampling resistor is greater than or equal to the voltage threshold, or if determining that the current is greater than or equal to a current threshold.Type: GrantFiled: March 22, 2022Date of Patent: September 17, 2024Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wenchao Bao, Song Meng, Min He, Huihui Li
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Publication number: 20240249679Abstract: A display panel, a driving method thereof and a display apparatus, including: a plurality of sub-pixels. Each sub-pixel includes a pixel circuit, and the pixel circuit includes: a light-emitting device (L); a drive transistor (M0), configured to generate a drive current driving the light-emitting device (L) to emit light according to a data voltage at a light-emitting stage (T2); a voltage control circuit (10), coupled to the drive transistor (M0) and configured to input the data voltage into the drive transistor (M0) at a data writing stage (T1); and a black frame insertion control circuit (20), coupled to the drive transistor (M0) and configured to control the drive transistor (M0) to stop generating the drive current at a black frame insertion stage (T3) after the light-emitting stage (T2).Type: ApplicationFiled: February 11, 2022Publication date: July 25, 2024Inventors: Wenchao BAO, Xuehuan FENG, Pengfei YIN
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Publication number: 20240221607Abstract: An image dis play method applied to a display apparatus includes: establishing a correspondence table between a threshold voltage of a sub-pixel and a compensation voltage, the correspondence table including at least one adjustment interval, an adjustment interval including a first and second threshold voltage endpoint values, the first threshold voltage endpoint value being less than the second threshold voltage endpoint value; acquiring a threshold voltage of each sub-pixel; determining an adjustment interval in which the acquired threshold voltage is located according to the corresponding table; acquiring a compensation voltage corresponding to the acquired threshold voltage according to the correspondence table and the determined adjustment interval; and determining, in a case where the display apparatus is to display a black image, a data voltage required by each sub-pixel according to the acquired threshold voltage and the acquired compensation voltage.Type: ApplicationFiled: September 8, 2021Publication date: July 4, 2024Inventors: Huihui LI, Wenchao BAO, Song MENG, Jingbo XU
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Publication number: 20240169907Abstract: A control device includes a memory and a processor. The memory is configured to store a time comparison table. The processor is configured to determine whether a displayed image is a still image. When the displayed image is determined to be a still image, the time comparison table is queried for a corresponding still image judgment duration according to an average pixel level and a type of the still image.Type: ApplicationFiled: July 21, 2021Publication date: May 23, 2024Inventors: Xiaolong WEI, Song MENG, Jingbo XU, Pan LI, Wenchao BAO
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Patent number: 11984066Abstract: A processing method and a processing device for pixel data, a display device, a display method, and a storage medium are provided. The processing method includes: determining a target pixel point in pixel points of a display frame image to be revised, a pixel data of each pixel point including S initial pixel data of different primary colors and a white initial pixel data; converting a white initial pixel data in a pixel data of the target pixel point into S equivalent pixel data of the different primary colors; obtaining S target pixel data of the different primary colors and a white target pixel data of the target pixel point according to the S equivalent pixel data and according to S initial pixel data of the different primary colors in the pixel data of the target pixel point, the white target pixel data corresponding to a 0 gray scale.Type: GrantFiled: February 15, 2019Date of Patent: May 14, 2024Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventor: Wenchao Bao