Patents by Inventor Chuanyan LAN

Chuanyan LAN 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: 11170708
    Abstract: The present disclosure provides a gamma correcting method and device, a display device, and a computer storage medium, which belong to the field of display technologies. The method includes: acquiring measurement data of a first display panel, wherein the measurement data includes m display brightness levels to be compensated and m sets of compensation parameters corresponding to the m display brightness levels, where m is a positive integer; and compensating a second display panel at a corresponding display brightness level with the m sets of compensation parameters respectively, wherein the second display panel and the first display panel have same structure and material.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: November 9, 2021
    Assignee: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yong Yu, Chuanyan Lan, Xin Wang
  • Publication number: 20210335189
    Abstract: An image processing method, a drive device, a display panel, and a wearable device are disclosed. The image processing method includes: determining an adjacent display pixel adjacent to each grayscale transition region in the row direction or in the column direction in the display image region according to a position of the grayscale transition region; determining a transition pixel in the grayscale transition region; acquiring a first pixel grayscale, in which the first pixel grayscale is a grayscale of the adjacent display pixel; acquiring a second pixel grayscale; adjusting a third pixel grayscale of the transition pixel according to the first pixel grayscale, the second pixel grayscale and the transition pixel, in which the third pixel grayscale is between the first pixel grayscale and the second pixel grayscale; and transmitting the third pixel grayscale to the display panel for display.
    Type: Application
    Filed: May 22, 2018
    Publication date: October 28, 2021
    Inventors: Yong YU, Yuan YAO, Chuanyan LAN, Taehyun KIM
  • Publication number: 20210327370
    Abstract: An image processing method, an image processing method device, a display device and a computer-readable storage medium are provided. The image processing method includes: receiving an original display screen; determining a target area in the original display screen, wherein an initial brightness of the target area is larger than a maximum allowable brightness; determining a target grayscale value of the target area; and adjusting a grayscale value of the target area to the target grayscale value, so that the brightness of the target area does not exceed the maximum allowable brightness.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 21, 2021
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chuanyan LAN, Guoqiang WU, Yong YU
  • Patent number: 11127356
    Abstract: Embodiments of the present disclosure relate to a method for compensating brightness unevenness of a display device. In an embodiment of the present disclosure, a display device includes a display screen, a data driving circuit, and a mainboard. The method for compensating brightness unevenness according to an embodiment of the present disclosure includes obtaining, by the data driving circuit, first brightness compensation data from the mainboard. Then, the data driving circuit adjusts image data according to the first brightness compensation data.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: September 21, 2021
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qifeng Li, Chuanyan Lan, Yong Yu
  • Publication number: 20210256283
    Abstract: The present disclosure provides a display module, and a display method and a terminal thereof, in the field of display technology. The display module includes a display panel and a control circuit; wherein the control circuit is configured to control a target region on the display panel to display a target image when the display panel is in an off-screen state, and the target region includes a fingerprint collection region. The present disclosure solves the problem that fingerprint collection operations on the terminal in the related art are complicated, and reliability is poor. The present disclosure is for fingerprint collection.
    Type: Application
    Filed: May 11, 2018
    Publication date: August 19, 2021
    Inventors: Lianbin Liu, Chuanyan Lan, Lixia Shen, Yong Yu
  • Publication number: 20210233449
    Abstract: The disclosure relates to a gamma correction method. The gamma correction method may include controlling a display panel to perform image display, the display panel comprising a plurality of display subareas and at least two of the plurality of display subareas having different resolutions; obtaining display brightness of the plurality of display subareas performing image display; and performing gamma correction on the display panel based on the display brightness of the plurality of display subareas respectively to obtain a correction parameter of each of the plurality of display subareas, An image displayed by the display panel may have an image resolution that is greater than a resolution of at least one of the plurality of display subareas.
    Type: Application
    Filed: October 17, 2019
    Publication date: July 29, 2021
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kun Zuo, Chuanyan Lan, Guoqiang Wu
  • Patent number: 11069296
    Abstract: The invention provides a regulating device and a regulating method for a gray scale voltage, and a display device. The regulating device includes a voltage dividing circuit configured to generate a gray scale voltage according to a first input voltage and a second input voltage; a first voltage regulator configured to regulate a first fixed voltage to output the first input voltage, such that the voltage dividing circuit can generate a predetermined number of gray scale steps for all display brightness.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: July 20, 2021
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Chuanyan Lan, Lixia Shen, Yong Yu
  • Publication number: 20210193011
    Abstract: A color shift compensation method, a color shift compensation system and a display panel are provided. The color shift compensation method includes: accumulating actual display time of a display panel; determining whether or not the actual display time reaches a preset cumulative display time threshold; and in a case where the actual display time reaches the preset cumulative display time threshold, driving the display panel to display according to compensated adjustment voltages that are pre-stored, and in a case where the actual display time does not reach the preset cumulative display time threshold, driving the display panel to display according to current adjustment voltages that are pre-stored.
    Type: Application
    Filed: February 9, 2018
    Publication date: June 24, 2021
    Inventors: Xiaohuan CHANG, Chuanyan LAN, Yong YU
  • Publication number: 20210166654
    Abstract: A method and device for detecting compensation parameters of brightness, a method and device for compensating brightness, a display device, and a non-volatile storage medium are disclosed. The method for detecting compensation parameters is applied for a display panel, and the display panel includes a first region and a second region, which include first pixel units arranged and second pixel units arranged, respectively. The method includes selecting a first target region from the first region, and determining a first compensation parameter, according to brightness of the first target region, for at least part of the first pixel units in the first region to perform brightness compensation; and selecting a second target region from the second region, and determining a second compensation parameter, according to brightness of the second target region, for at least part of the second pixel units in the second region to perform brightness compensation.
    Type: Application
    Filed: April 22, 2019
    Publication date: June 3, 2021
    Inventors: Yong YU, Chuanyan LAN, Lixia SHEN
  • Publication number: 20210134246
    Abstract: Embodiments of the present disclosure relate to a method for compensating brightness unevenness of a display device. In an embodiment of the present disclosure, a display device includes a display screen, a data driving circuit, and a mainboard. The method for compensating brightness unevenness according to an embodiment of the present disclosure includes obtaining, by the data driving circuit, first brightness compensation data from the mainboard. Then, the data driving circuit adjusts image data according to the first brightness compensation data.
    Type: Application
    Filed: January 4, 2019
    Publication date: May 6, 2021
    Inventors: Qifeng LI, Chuanyan LAN, Yong YU
  • Patent number: 10971070
    Abstract: The present disclosure provides a driver circuit and its working method and a display device. The driver circuit includes: a driver chip coupled with a plurality of signal lines; a plurality of signal line leads that are corresponding to the plurality of signal lines in a one-to-one manner; and a plurality of short-circuit shielding circuits that are corresponding to the plurality of signal line leads in a one-to-one manner. Each of the plurality of short-circuit shielding circuits is coupled between corresponding one of the plurality of signal line leads and corresponding one of the plurality of signal lines, and is configured to turn on or off a connection between the corresponding one of the plurality of signal line leads and the corresponding one of the plurality of signal lines.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: April 6, 2021
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lianbin Liu, Hengzhen Liang, Chuanyan Lan, Xu Lu, Hui Wen, Shihao Wang
  • Publication number: 20210097920
    Abstract: A gamma correction method applied to a display screen to be debugged includes: for a color of the display screen to be debugged, arranging a plurality of reference points, arranging at least one transition point between two adjacent reference points, and obtaining a brightness adjustment curve representing a corresponding relationship between a brightness adjustment value and a gamma band according to the plurality of reference points and the at least one transition point. Each gamma band represents a set of register values corresponding to gray scales of the color at the brightness adjustment value corresponding to the gamma band.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 1, 2021
    Inventors: Yong YU, Chang ZHANG, Renjie DING, Chuanyan LAN
  • Patent number: 10923039
    Abstract: Provided are an OLED pixel circuit and a driving method thereof, and a display device. The OLED pixel circuit includes: an initialization sub-circuit coupled to a driving sub-circuit, a first signal terminal, a first voltage terminal and an initial voltage terminal, respectively, and configured to initialize the driving sub-circuit; a data writing and compensation sub-circuit coupled to the driving sub-circuit, a scan signal terminal and a data voltage terminal, respectively, and configured to perform threshold voltage compensation for the driving sub-circuit; the driving sub-circuit further coupled to a light-emitting control sub-circuit and the first voltage terminal, and configured to drive a light-emitting sub-circuit to emit light after threshold voltage compensation has been performed.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: February 16, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yong Yu, Chuanyan Lan, Jing Liu, Kwang Gyun Jang
  • Publication number: 20200388221
    Abstract: The invention provides a regulating device and a regulating method for a gray scale voltage, and a display device. The regulating device includes a voltage dividing circuit configured to generate a gray scale voltage according to a first input voltage and a second input voltage; a first voltage regulator configured to regulate a first fixed voltage to output the first input voltage, such that the voltage dividing circuit can generate a predetermined number of gray scale steps for all display brightness.
    Type: Application
    Filed: May 16, 2019
    Publication date: December 10, 2020
    Inventors: Chuanyan LAN, Lixia SHEN, Yong YU
  • Publication number: 20200286423
    Abstract: The present disclosure provides a gamma correcting method and device, a display device, and a computer storage medium, which belong to the field of display technologies. The method includes: acquiring measurement data of a first display panel, wherein the measurement data includes m display brightness levels to be compensated and m sets of compensation parameters corresponding to the m display brightness levels, where m is a positive integer; and compensating a second display panel at a corresponding display brightness level with the m sets of compensation parameters respectively, wherein the second display panel and the first display panel have same structure and material.
    Type: Application
    Filed: July 9, 2019
    Publication date: September 10, 2020
    Inventors: Yong Yu, Chuanyan Lan, Xin Wang
  • Publication number: 20200273831
    Abstract: A driving chip and a display device are provided herein. The driving chip includes a substrate, a plurality of connection bumps and a plurality of buffer bumps on the substrate. Each of the connection bumps and the buffer bumps is disposed on a first substrate of the substrate. The buffer bump includes a first end face with a height a, and the connection bump has a connection bump end face with a height b, a<b. The height is a distance from a corresponding end face of the connection bump or the buffer bump to the first surface. With the buffer bumps on the driving chip, stress buffering can be achieved, which can further improve the bonding effect of the driving chip.
    Type: Application
    Filed: October 30, 2018
    Publication date: August 27, 2020
    Inventors: Lianbin LIU, Hengzhen LIANG, Chuanyan LAN, Guoqiang WU
  • Publication number: 20200273410
    Abstract: Provided are an OLED pixel circuit and a driving method thereof, and a display device. The OLED pixel circuit includes: an initialization sub-circuit coupled to a driving sub-circuit, a first signal terminal, a first voltage terminal and an initial voltage terminal, respectively, and configured to initialize the driving sub-circuit; a data writing and compensation sub-circuit coupled to the driving sub-circuit, a scan signal terminal and a data voltage terminal, respectively, and configured to perform threshold voltage compensation for the driving sub-circuit; the driving sub-circuit further coupled to a light-emitting control sub-circuit and the first voltage terminal, and configured to drive a light-emitting sub-circuit to emit light after threshold voltage compensation has been performed.
    Type: Application
    Filed: October 25, 2017
    Publication date: August 27, 2020
    Inventors: Yong YU, Chuanyan LAN, Jing LIU, Kwang Gyun JANG
  • Publication number: 20200234637
    Abstract: The present disclosure provides a display device, a display control device and a display control method and it relates to the field of display technology. The display control device of the present disclosure includes: a plurality of shift registers, each of the shift registers being configured to output a display control signal and duty ratios of the display control signals output by the shift registers being not exactly the same; and a gating circuit coupled to the shift registers and configured to select the display control signal outputted by one of the shift registers to be transmitted to a pixel circuit in each pulse period in response to a gating signal.
    Type: Application
    Filed: August 30, 2019
    Publication date: July 23, 2020
    Inventors: Xuerui Gong, Chuanyan Lan, Yong Yu
  • Publication number: 20200219449
    Abstract: The present disclosure provides a driver circuit and its working method and a display device. The driver circuit includes: a driver chip coupled with a plurality of signal lines; a plurality of signal line leads that are corresponding to the plurality of signal lines in a one-to-one manner; and a plurality of short-circuit shielding circuits that are corresponding to the plurality of signal line leads in a one-to-one manner. Each of the plurality of short-circuit shielding circuits is coupled between corresponding one of the plurality of signal line leads and corresponding one of the plurality of signal lines, and is configured to turn on or off a connection between the corresponding one of the plurality of signal line leads and the corresponding one of the plurality of signal lines.
    Type: Application
    Filed: November 4, 2019
    Publication date: July 9, 2020
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lianbin LIU, Hengzhen LIANG, Chuanyan LAN, Xu LU, Hui WEN, Shihao WANG
  • Publication number: 20200192554
    Abstract: Embodiments of the present disclosure provide a terminal device, a display control method implemented by the terminal device, a computer readable storage medium, and a computer program product. The display control method includes: displaying, during a first time period of a display period, a first display sub-interface in a first display area of a display unit of the terminal device using a first color combination scheme; and displaying, during a second time period of the display period, the first display sub-interface in the first display area using a second color combination scheme different from the first color combination scheme.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 18, 2020
    Inventors: Shuai Ye, Yong Yu, Xiaohuan Chang, Chuanyan Lan, Lianbin Liu