Patents by Inventor Song Meng

Song Meng 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: 11955047
    Abstract: The present disclosure relates to the field of display technology, and provides a display panel and a driving method thereof, a compensation data compression method and a compensation data decompression method. The display panel includes a data compression unit and a data decompression unit. The data compression unit is used to acquire a plurality of first compensation data and a common parameter, and compress each of the first compensation data into second compensation data according to a preset compression rule based on the first compensation data and the common parameter. The data decompression unit is used to acquire a plurality of second compensation data and the common parameter, and decompress each of the second compensation data into the first compensation data according to a preset decompression rule based on the second compensation data and the common parameter.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: April 9, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Song Meng
  • Publication number: 20240071284
    Abstract: A method for driving a display panel is provided. The method includes receiving image data of a frame of image, the image data including a plurality of initial grayscale values respectively for a plurality of subpixels in the display panel; and converting the image data into a converted image data including a plurality of converted grayscale values respectively for the plurality of subpixels. Converting the image data includes compensating a respective initial grayscale value for a respective subpixel by at least a respective delay-compensating factor to obtain a respective converted grayscale value. With respect to a p-th subpixel and a q-th subpixel respectively connected to a respective data line and having a same initial grayscale values, a p-th delay-compensating factor for the p-th subpixel is greater than a q-th delay-compensating factor for the q-th subpixel.
    Type: Application
    Filed: June 29, 2021
    Publication date: February 29, 2024
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Song Meng, Jingbo Xu, Pan Li
  • Publication number: 20240054925
    Abstract: A method for sensing a display panel includes: sensing an electrical characteristic parameter of a driving transistor of a pixel circuit of a sub-pixel in an X-th row in a blank stage between an N-th frame and an (N+1)-th frame, wherein X is a random number, and both N and X are positive integers.
    Type: Application
    Filed: May 28, 2021
    Publication date: February 15, 2024
    Inventors: Xiaolong WEI, Fei YANG, Song MENG, Jingbo XU, Jianbo XIAN
  • Publication number: 20240046879
    Abstract: A data driving integrated circuit includes a digital-to-analog converter configured to receive a respective digital data signal from a timing controller and convert the respective digital data signal to a respective analog data signal, which is output to a display panel through a respective data line; an analog-to-digital converter configured to receive a respective analog sensing signal from a respective sensing line in the display panel and convert respective analog sensing signal to a respective digital sensing signal, which is output to the timing controller; a first sensing switch configured to control a connection between a first reference voltage line and the respective sensing line; a second sensing switch configured to control a connection between a second reference voltage line and the respective sensing line; and a third sensing switch configured to control the connection between the analog-to-digital converter and the respective sensing line.
    Type: Application
    Filed: May 26, 2021
    Publication date: February 8, 2024
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Fei Yang, Song Meng, Zhiqiang Dong, Yi Chen, Jingbo Xu, Jianbo Xian
  • Publication number: 20230274695
    Abstract: The present disclosure relates to the field of display technology, and describes a pixel driving circuit detection method, a display panel, a driving method thereof, and a display device. The detection method includes inputting a reference voltage to the data line during at least part of the initial phase; turning on the first and second switch sub-circuits during the charging phase, to input the detection voltage to the data line, while inputting the reset voltage to the sensing line; turning on the second switch sub-circuit during the charging phase, to input the driving current by the driving transistor to the sensing line under the effect of the detection voltage; turning off the first and second switch sub-circuits during the detection phase, to detect the voltage on the sensing line; and obtaining the mobility of the driving transistor according to the voltage on the sensing line detected in the detection phase.
    Type: Application
    Filed: May 8, 2023
    Publication date: August 31, 2023
    Inventors: Song MENG, Xuehuan Feng
  • Patent number: 11705069
    Abstract: The present application discloses a method for compensating data voltages in a display apparatus. The method for individually compensating a data voltage to be applied to one of the multiple pixel circuits in the display apparatus. The method includes obtaining a threshold voltage of the driving transistor in the one of the multiple pixel circuits. Additionally, the method includes applying a testing voltage to a gate electrode of the driving transistor for charging the sense line up to a first time period to determine a first monitoring voltage associated with the sense line. The testing voltage is set to be a sum of the threshold voltage and a first setting voltage. Moreover, the method includes compensating a data voltage to be applied to the one of the multiple pixel circuits based on the first monitoring voltage and the threshold voltage.
    Type: Grant
    Filed: September 6, 2021
    Date of Patent: July 18, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Song Meng, Zhongyuan Wu, Fei Yang
  • Patent number: 11682347
    Abstract: The present disclosure relates to the field of display technology, and describes a pixel driving circuit detection method, a display panel, a driving method thereof, and a display device. The detection method includes inputting a reference voltage to the data line during at least part of the initial phase; turning on the first and second switch sub-circuits during the charging phase, to input the detection voltage to the data line, while inputting the reset voltage to the sensing line; turning on the second switch sub-circuit during the charging phase, to input the driving current by the driving transistor to the sensing line under the effect of the detection voltage; turning off the first and second switch sub-circuits during the detection phase, to detect the voltage on the sensing line; and obtaining the mobility of the driving transistor according to the voltage on the sensing line detected in the detection phase.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: June 20, 2023
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Song Meng, Xuehuan Feng
  • Publication number: 20230054734
    Abstract: An electrical connector includes an insulating case and a first terminal set including a first grounding terminal set, a first signal terminal set and a second signal terminal set arranged at intervals in the horizontal direction. The first grounding terminal set includes a first grounding terminal, a second grounding terminal and a third grounding terminal. The first signal terminal set is vertically staggered between the first grounding terminal and the second grounding terminal and includes a first signal terminal and a second signal terminal arranged at intervals in the vertical direction. The second signal terminal set is vertically staggered between the second grounding terminal and the third grounding terminal and includes a third signal terminal and a fourth signal terminal arranged at intervals in the vertical direction.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 23, 2023
    Inventors: Song MENG, HSU-FENG CHANG
  • Patent number: 11527214
    Abstract: An image processing method, an image processing circuit and a display apparatus are provided. The image processing method includes: converting an RGB gray-scale value of each pixel in a current image frame into an RGB luminance value; converting the RGB luminance value into a first RGBW luminance value; determining a luminance level of the current image frame according to the first RGBW luminance value corresponding to each pixel; determining a luminance gain value of the current image frame according to the luminance level of the current image frame; calculating a second RGBW luminance value according to the luminance gain value and the first RGBW luminance value; and converting the second RGBW luminance value into an RGBW gray-scale value.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: December 13, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Song Meng, Zhongyuan Wu
  • Publication number: 20220284853
    Abstract: 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: Application
    Filed: March 22, 2022
    Publication date: September 8, 2022
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenchao BAO, Song MENG, Min HE, Huihui LI
  • Publication number: 20220269123
    Abstract: 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: Application
    Filed: September 17, 2021
    Publication date: August 25, 2022
    Inventors: Huihui LI, Wenchao BAO, Song MENG
  • Patent number: 11393394
    Abstract: A compensation method and a compensation apparatus for an organic light-emitting display, and a display device are disclosed. The compensation method includes: determining a write-back voltage of each sub-pixel to be compensated in a row to be compensated in a current frame according to a data voltage and a gain value of the sub-pixel to be compensated in the row to be compensated in the current frame, the gain value being greater than 1; and respectively writing back the write-back voltage of each sub-pixel to be compensated in the row to be compensated in the current frame correspondingly to the sub-pixel to be compensated in the row to be compensated in scan time of a blank period of the current frame.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: July 19, 2022
    Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.
    Inventors: Haixia Xu, Song Meng, Yue Wu, Wenchao Bao, Min He
  • Patent number: 11341914
    Abstract: The present disclosure relates to a method for driving an organic light emitting display device, a driving controller, and a display device. When startup detection is required to be performed on the display compensation parameter of the organic light emitting display device, the startup detection is performed on the display compensation parameter of the organic light emitting display device to obtain a new compensation parameter value, and startup compensation display is performed based on the new compensation parameter value. When shutdown detection is required to be performed on the display compensation parameter of the organic light emitting display device, the shutdown detection is performed on the organic light emitting display device to obtain an updated compensation parameter value, and the updated compensation parameter value is stored.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: May 24, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Fei Yang, Song Meng
  • Patent number: 11335266
    Abstract: A compensation method for a display panel and a display device are provided. The display panel includes a plurality of sub-pixels, and at least one of the plurality of sub-pixels includes a sensing capacitor. The method includes: obtaining a first voltage value and a second voltage value of the sensing capacitor, obtaining a temperature change amount of a sub-pixel corresponding to the sensing capacitor according to the first voltage value and the second voltage value of the sensing capacitor, determining a value of a compensation parameter of the sub-pixel according to the temperature change amount of the sub-pixel and a preset correspondence between the temperature change amount of the sub-pixel and the compensation parameter; and performing a compensation on a driving voltage of the sub-pixel according to the value of the compensation parameter as determined.
    Type: Grant
    Filed: September 29, 2019
    Date of Patent: May 17, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Song Meng, Fei Yang, Chun Cao, Xiaolong Wei
  • Publication number: 20220122556
    Abstract: An image processing method, an image processing circuit and a display apparatus are provided. The image processing method includes: converting an RGB gray-scale value of each pixel in a current image frame into an RGB luminance value; converting the RGB luminance value into a first RGBW luminance value; determining a luminance level of the current image frame according to the first RGBW luminance value corresponding to each pixel; determining a luminance gain value of the current image frame according to the luminance level of the current image frame; calculating a second RGBW luminance value according to the luminance gain value and the first RGBW luminance value; and converting the second RGBW luminance value into an RGBW gray-scale value.
    Type: Application
    Filed: January 20, 2021
    Publication date: April 21, 2022
    Inventors: Song MENG, Zhongyuan WU
  • Publication number: 20220122529
    Abstract: The present disclosure relates to the field of display technology, and describes a pixel driving circuit detection method, a display panel, a driving method thereof, and a display device. The detection method includes inputting a reference voltage to the data line during at least part of the initial phase; turning on the first and second switch sub-circuits during the charging phase, to input the detection voltage to the data line, while inputting the reset voltage to the sensing line; turning on the second switch sub-circuit during the charging phase, to input the driving current by the driving transistor to the sensing line under the effect of the detection voltage; turning off the first and second switch sub-circuits during the detection phase, to detect the voltage on the sensing line; and obtaining the mobility of the driving transistor according to the voltage on the sensing line detected in the detection phase.
    Type: Application
    Filed: June 29, 2021
    Publication date: April 21, 2022
    Inventors: Song MENG, Xuehuan FENG
  • Patent number: 11302254
    Abstract: The present disclosure discloses a pixel circuit compensation method and device, and a display device. The method includes: when the display panel is in a preset display state, sensing a preset mobility compensation value corresponding to a driving transistor in the pixel circuit; according to the preset mobility compensation value, adjusting an initial mobility compensation value corresponding to the driving transistor to a target mobility compensation value, wherein a difference between the target mobility compensation value and the preset mobility compensation value is less than a threshold; based on the target mobility compensation value, when the display panel is in a non-display state, compensating a mobility of the driving transistor in a preset compensation manner.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: April 12, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chun Cao, Song Meng, Min He
  • Patent number: 11295667
    Abstract: Provided are a pixel structure, a display panel and a control method thereof. The pixel structure includes four sub-pixel units, wherein the i-th sub-pixel unit includes: an i-th element to be driven and an i-th drive circuit, 1?i?4, and the i-th drive circuit is respectively connected with an M-th data line and an N-th scanning line, and is configured to drive the i-th element to be driven according to a data signal of the M-th data line under control of the N-th scanning line, M = { 1 , 1 ? i ? 2 2 , 3 ? i ? 4 , N = { 1 , 2 ? i ? 3 2 , i ? ? is ? ? 1 ? ? or ? ? 4 .
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: April 5, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhidong Yuan, Yongqian Li, Song Meng, Can Yuan
  • Patent number: 11270642
    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: Grant
    Filed: November 5, 2019
    Date of Patent: March 8, 2022
    Assignees: 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
  • Patent number: 11263969
    Abstract: A pixel circuit, a parameter detection method, a display panel and a display device are provided. The pixel circuit includes a data writing-in circuit, a driving circuit, a reset control circuit, a detection control circuit, and a light emitting element. The detection control circuit is configured to control the connection or disconnection between the first electrode of the light emitting element and the sensing line under the control of a detection control signal provided by the detection control line. The reset control circuit is configured to control the connection or disconnection between the first electrode of the light emitting element and the second electrode of the light emitting element under the control of a reset control signal provided by the reset control line.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: March 1, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fei Yang, Song Meng, Xiaolong Wei