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).

  • Patent number: 10957259
    Abstract: The embodiment of the present application provides a data processing method, wherein the data processing method is applied to a display panel comprising pixels arranged in an M×N array, the method comprising: obtaining voltage data corresponding to pixels of n adjacent columns in the ith row determining, based on stored voltage data corresponding to pixels of n adjacent columns in (m?1) rows previous to the ith row, whether voltage data corresponding to a pixel in the ith row and jth column is abnormal; performing a filtering process on the voltage data corresponding to the pixel in the ith row and jth column if the voltage data corresponding to the pixel in the ith row and jth column is abnormal, such that a difference between a threshold voltage after the filtering process and an actual threshold voltage is less than or equal to a first threshold difference.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: March 23, 2021
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xiaolong Wei, Wenchao Bao, Min He
  • Patent number: 10950158
    Abstract: The present disclosure provides a display apparatus, including: a plurality of pixels, at least one of which includes a red sub-pixel, a green sub-pixel, a first blue sub-pixel and a second blue sub-pixel. Blue light emitted by the first blue sub-pixel has a wave band of 400˜540 nm and blue light emitted by the second blue sub-pixel has a wave band of 420˜580 nm. The red sub-pixel and the green sub-pixel are combined with the first blue sub-pixel or the second blue sub-pixel to perform a RGB three-primary-color display. The present disclosure further provides a display method for the display apparatus.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 16, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenchao Bao, Qinghua Zou
  • Publication number: 20210074224
    Abstract: The embodiment of the present application provides a data processing method, wherein the data processing method is applied to a display panel comprising pixels arranged in an M×N array, the method comprising: obtaining voltage data corresponding to pixels of n adjacent columns in the ith row; determining, based on stored voltage data corresponding to pixels of n adjacent columns in (m?1) rows previous to the ith row, whether voltage data corresponding to a pixel in the ith row and jth column is abnormal; performing a filtering process on the voltage data corresponding to the pixel in the ith row and jth column if the voltage data corresponding to the pixel in the ith row and jth column is abnormal, such that a difference between a threshold voltage after the filtering process and an actual threshold voltage is less than or equal to a first threshold difference.
    Type: Application
    Filed: January 17, 2019
    Publication date: March 11, 2021
    Inventors: Xiaolong WEI, Wenchao BAO, Min HE
  • Patent number: 10939564
    Abstract: A circuit board includes a substrate, an input binding region and at least two output binding regions disposed on the substrate. Each of the output binding regions includes a plurality of binding portions, and the number of the binding portions included in different output binding regions is different. The substrate is configured to output a signal received by the input binding region to respective binding portions included in each of the output binding regions.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: March 2, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Enming Xie, Dongxu Han, Wenchao Bao, Chun Cao
  • Publication number: 20200273405
    Abstract: A method for detecting a threshold voltage of a driving transistor includes: obtaining at least one first threshold voltage of at least one driving transistor when each driving transistor is driven by a corresponding first driving signal; obtaining a threshold reference voltage of the driving transistor according to the at least one first threshold voltage; obtaining a second driving signal of the driving transistor according to the threshold reference voltage and the first driving signal of the driving transistor, a value of the second driving signal being greater than a value of the first driving signal; and obtaining a second threshold voltage of the driving transistor when the driving transistor is driven by the second driving signal.
    Type: Application
    Filed: May 14, 2020
    Publication date: August 27, 2020
    Inventors: Fei YANG, Xiaolong WEI, Wenchao BAO, Min HE
  • Patent number: 10743405
    Abstract: The present disclosure provides a printed circuit board including a plurality of conductive layers separated by insulating medium and a plurality of connection structures. Each connection structure penetrates each of the conductive layers. The plurality of conductive layers comprises a first conductive layer in which first signal lines are located and a second conductive layer in which second signal lines are located, and the first and second signal lines are connected via the connection structures. Anti-pads surrounding the connection structures are provided on others of the plurality of conductive layers except the first and the second conductive layers. For a same connection structure, the anti-pads surrounding the connection structure include adjacent anti-pads and nonadjacent anti-pads. Size of the adjacent anti-pads in any direction parallel to the conductive layers is smaller than that of the nonadjacent anti-pads. The present disclosure also provides a display apparatus.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: August 11, 2020
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Enming Xie, Xiaolong Wei, Chun Cao, Wenchao Bao
  • Patent number: 10699643
    Abstract: The present disclosure relates to a pixel driving compensation circuit. The pixel driving compensation circuit can detect and compensate a driving current of a sub-pixel in a pixel unit. The pixel unit includes first, second, and third sub-pixels and the first to third sub-pixels respectively include first, second, and third driving transistors. The pixel driving compensation circuit includes a first switching sub-circuit configured to be turned on in a first period to transmit a driving current output from the first driving transistor to a first detection line, second switching sub-circuit configured to be turned on in a second period to transmit a driving current output from the second driving transistor to a first detection line, and a third switching sub-circuit configured to be turned on in the first period to transmit a driving current output from the third driving transistor to a second detection line.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: June 30, 2020
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Zhidong Yuan, Yongqian Li, Pan Xu, Wenchao Bao, Min He
  • Publication number: 20200202786
    Abstract: A pixel unit includes a first sub-pixel circuit and a second sub-pixel circuit. The first sub-pixel circuit includes a first sub-pixel driving circuit and a first light-emitting element, and the second sub-pixel circuit includes a second sub-pixel driving circuit and a second light-emitting element. The first sub-pixel driving circuit and the second sub-pixel driving circuit are connected to a first data line, and the first sub-pixel driving circuit is connected to a first gate line, the second sub-pixel driving circuit is connected to the second gate line. The first sub-pixel driving circuit is configured to drive the first light-emitting element by a data voltage on the first data line under the control of the first gate line. The second sub-pixel driving circuit is configured to drive the second light-emitting element by the data voltage on the first data line under the control of the second gate line.
    Type: Application
    Filed: November 5, 2019
    Publication date: June 25, 2020
    Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Meng LI, Yongqian LI, Song MENG, Zhidong YUAN, Can YUAN, Haixia XU, Wenchao BAO
  • Publication number: 20200160784
    Abstract: The present disclosure proposes a display control method and device, and a display panel. The display control method includes: acquiring a temperature compensation value of a row of pixel units in a display panel on which temperature compensation is currently performed; acquiring, according to the temperature compensation value, a brightness ratio corresponding to the temperature compensation value; and compensating for brightness of a row of pixel units in the display panel on which temperature compensation is not performed according to the brightness ratio.
    Type: Application
    Filed: August 1, 2019
    Publication date: May 21, 2020
    Inventors: Haixia Xu, Zhidong Yuan, Wenchao Bao, Can Yuan, Song Meng
  • Publication number: 20200137898
    Abstract: A circuit board includes a substrate, an input binding region and at least two output binding regions disposed on the substrate. Each of the output binding regions includes a plurality of binding portions, and the number of the binding portions included in different output binding regions is different. The substrate is configured to output a signal received by the input binding region to respective binding portions included in each of the output binding regions.
    Type: Application
    Filed: May 28, 2019
    Publication date: April 30, 2020
    Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Enming XIE, Dongxu HAN, Wenchao BAO, Chun CAO
  • Publication number: 20200135084
    Abstract: A chromaticity compensation method, a chromaticity compensation device and a storage medium are disclosed. The chromaticity compensation method includes that, according to a preset standard chromaticity value and measured chromaticity values corresponding to a plurality of sub-display regions in a display region, chromaticity compensation values of the sub-display regions are determined, and the display region is divided into the plurality of sub-display regions in close arrangement, and each of the sub-display regions includes a plurality of sub-pixels; a data smoothing treatment is performed between the chromaticity compensation values of the sub-display regions that are adjacent, so as to determine the smoothed chromaticity compensation values of the sub-pixels in the sub-display regions; and upon display, chromaticity compensation of the sub-pixels are performed by adopting the smoothed chromaticity compensation values.
    Type: Application
    Filed: June 3, 2019
    Publication date: April 30, 2020
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Wenchao Bao, Xiaolong Wei, Dongxu Han
  • Publication number: 20200104282
    Abstract: The present disclosure provides a method and a device for abnormal data processing. The method includes: acquiring a queue of data to be detected, wherein the queue of data to be detected comprises M data arranged sequentially, M being a positive integer; filtering the queue of data to be detected with a filtering algorithm in at least two different orders respectively, wherein a window used in the filtering algorithm has a size of N, N being a positive integer smaller than M; determining abnormal data in the queue of data to be detected according to the filtering result; and performing data replacement on the abnormal data according to a preset rule.
    Type: Application
    Filed: May 24, 2019
    Publication date: April 2, 2020
    Inventors: Wenchao Bao, Xiaolong Wei
  • Publication number: 20200098301
    Abstract: The present disclosure provides a display apparatus, including: a plurality of pixels, at least one of which includes a red sub-pixel, a green sub-pixel, a first blue sub-pixel and a second blue sub-pixel. Blue light emitted by the first blue sub-pixel has a wave band of 400˜540 nm and blue light emitted by the second blue sub-pixel has a wave band of 420˜580 mn. The red sub-pixel and the green sub-pixel are combined with the first blue sub-pixel or the second blue sub-pixel to perform a RGB three-primary-color display. The present disclosure further provides a display method for the display apparatus.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 26, 2020
    Inventors: Wenchao BAO, Qinghua ZOU
  • Patent number: 10593279
    Abstract: A display device, a gate driving circuit and a gate driving unit are provided. The gate driving unit includes: a signal maintenance circuit configured to, in the case that a first clock signal at a high level is received, output a high level in accordance with an inputted trigger signal at a high level; a first-level output circuit configured to, in the case that a second clock signal at a high level is received, output a first-level driving signal at a high level in accordance with the high level from an output end of the signal maintenance circuit; and a second-level output circuit configured to, in the case that a third clock signal at a high level is received, output a second-level driving signal at a high level in accordance with the high level from an output end of the first-level output circuit.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: March 17, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Meng Li, Yongqian Li, Pan Xu, Zhenfei Cai, Zhidong Yuan, Can Yuan, Xuehuan Feng, Wenchao Bao
  • Publication number: 20200068704
    Abstract: The present disclosure provides a printed circuit board including a plurality of conductive layers separated by insulating medium and a plurality of connection structures. Each connection structure penetrates each of the conductive layers. The plurality of conductive layers comprises a first conductive layer in which first signal lines are located and a second conductive layer in which second signal lines are located, and the first and second signal lines are connected via the connection structures. Anti-pads surrounding the connection structures are provided on others of the plurality of conductive layers except the first and the second conductive layers. For a same connection structure, the anti-pads surrounding the connection structure include adjacent anti-pads and nonadjacent anti-pads. Size of the adjacent anti-pads in any direction parallel to the conductive layers is smaller than that of the nonadjacent anti-pads. The present disclosure also provides a display apparatus.
    Type: Application
    Filed: June 28, 2019
    Publication date: February 27, 2020
    Inventors: Enming XIE, Xiaolong WEI, Chun CAO, Wenchao BAO
  • Publication number: 20200058265
    Abstract: The present disclosure relates to a method for converting RGB image signals into RGBW image signals. The method includes converting RGB image signals of pixels of each received image frame into corresponding RGB luminance values respectively, performing a conversion from an RGB luminance value to an RGBW luminance value for each pixel, including performing a first conversion to the RGBW luminance value by determining a first conversion amount based on the corresponding RGB luminance value of the pixel to obtain a first RGBW luminance value of the pixel, performing a second conversion to the RGBW luminance value by determining a second conversion amount based on the first RGBW luminance values of the pixel and its adjacent one or more pixels to obtain a second RGBW luminance value of the pixel, and converting the second RGBW luminance values of the pixels of the image frame into corresponding RGBW image signals respectively.
    Type: Application
    Filed: March 28, 2019
    Publication date: February 20, 2020
    Inventors: Min HE, Chun CAO, Wenchao BAO
  • Patent number: 10553151
    Abstract: Embodiments of the present disclosure disclose a current control method and an apparatus thereof. The current control method includes: generating a correspondence between grayscale brightness and a current of a display panel; detecting, in a blank interval of a display period, an actual current value and an actual grayscale brightness of the display panel; determining a target current value by looking up a correspondence between the grayscale brightness and the current according to a target grayscale brightness of the display panel; and adjusting, based on a comparison of the actual current value and the target current value, the actual grayscale brightness so that the actual current value is less than or equal to the target current value.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: February 4, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Haixia Xu, Wenchao Bao
  • Patent number: 10508949
    Abstract: Disclosed is a data acquisition device for optical compensation including a platform for carrying a display panel; and a linear image acquisition module located above the platform. The linear image acquisition module is movable relative to the platform.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: December 17, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongxu Han, Tieshi Wang, Chi Zhang, Wenchao Bao, Min He, Pan Xu, Yongqian Li, Kun Cao, Yue Wu
  • Patent number: 10504438
    Abstract: A pixel circuit and a driving method thereof, and a display panel including the same. The pixel circuit includes, a first module and a second driving circuit, the first driving circuit drives the light emitting circuit to emit light during a first period under control of a first scanning signal at the first scanning control terminal, and the second driving circuit drives the light emitting circuit to emit light during a second period under control of a second scanning signal at the second scanning control terminal, the first and the second period not overlapping with each other. A light emitting device is alternately driven to emit light by using two driving circuits, so that one driving circuit enters a recovery stage while the other driving circuit drives the light emitting device to emit light, and thus threshold voltage drift of driving transistor can be reduced, while lifespan thereof can be prolonged.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: December 10, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenchao Bao, Guangcai Yuan
  • Publication number: 20190371245
    Abstract: The present disclosure relates to a pixel driving compensation circuit. The pixel driving compensation circuit can detect and compensate a driving current of a sub-pixel in a pixel unit. The pixel unit includes first, second, and third sub-pixels and the first to third sub-pixels respectively include first, second, and third driving transistors. The pixel driving compensation circuit includes a first switching sub-circuit configured to be turned on in a first period to transmit a driving current output from the first driving transistor to a first detection line, second switching sub-circuit configured to be turned on in a second period to transmit a driving current output from the second driving transistor to a first detection line, and a third switching sub-circuit configured to be turned on in the first period to transmit a driving current output from the third driving transistor to a second detection line.
    Type: Application
    Filed: January 4, 2018
    Publication date: December 5, 2019
    Inventors: Can Yuan, Zhidong Yuan, Yongqian Li, Pan Xu, Wenchao Bao, Min He