Patents by Inventor Tian DONG

Tian DONG 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: 11227521
    Abstract: The present disclosure relates to a gate driving circuit applied to a foldable display panel comprising B display areas arranged in order. The gate driving circuit may include B gate driving subcircuits and a control circuit. Each of the gate driving subcircuits may correspond to one of the display areas and each of the gate driving subcircuits may comprise a plurality of stage gate driving units. The control circuit may be configured to, when the foldable display panel is in a full screen display state, control a type of an input signal in a last stage gate driving unit of a bth gate driving subcircuit to be the same as a type of an input signal in a first stage gate driving unit of a (b+1)th gate driving subcircuit, where B is an integer greater than 1 and b is a positive integer less than B.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: January 18, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Zheng, Libin Liu, Li Wang, Tian Dong, Guangliang Shang, Xinshe Yin
  • Publication number: 20210407417
    Abstract: A pixel driving circuit is disclosed which includes an input circuit, a reset circuit, a driving transistor and a compensation circuit. The input circuit is configured to provide a data voltage from an input signal terminal to a first node according to a gate driving signal from a gate driving signal terminal. The reset circuit is configured to provide a first voltage from a first voltage terminal to a second node according to a reset control signal from a reset control signal terminal. The driving transistor is configured to output a current corresponding to a voltage difference between a control electrode and a first electrode to a light emitting device. The compensation circuit is configured to compensate a threshold voltage of the driving transistor based on a threshold voltage of a reference transistor.
    Type: Application
    Filed: July 2, 2019
    Publication date: December 30, 2021
    Inventor: Tian DONG
  • Patent number: 11200842
    Abstract: Embodiments of the present disclosure provide a pixel driving circuit and a driving method thereof, a display panel, and a display device. The pixel driving circuit comprises: a driving transistor connected to a first node, a first power supply voltage terminal and one end of a light emitting unit; a switching subcircuit connected to a first scanning terminal, the first node and a data voltage terminal; and a compensation subcircuit connected to the first node, a second scanning terminal, a first voltage terminal and a reference voltage terminal.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: December 14, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Tian Dong
  • Publication number: 20210376046
    Abstract: Disclosed are a display substrate and a manufacturing method thereof, and a display apparatus. The display substrate includes, in a plane parallel to the display substrate, a plurality of gate lines, a plurality of data lines, a plurality of power lines and a plurality of sub-pixels arranged on a base substrate. At least one sub-pixel includes a light-emitting device and a driving circuit configured to drive the light-emitting device to emit light. The driving circuit includes a plurality of transistors and a storage capacitor. The display substrate includes, in a plane perpendicular to the display substrate, a base substrate and a plurality of functional layers. The plurality of functional layers includes a semiconductor layer, a first conductive layer, a second conductive layer, a third conductive layer and a fourth conductive layer which are sequentially arranged.
    Type: Application
    Filed: October 29, 2020
    Publication date: December 2, 2021
    Inventor: Tian DONG
  • Publication number: 20210375205
    Abstract: The present disclosure discloses a display compensation circuit and a method for controlling the same, and a display apparatus. The display compensation circuit comprises a pixel circuit and a power supply selection circuit. The pixel circuit comprises: a light-emitting control sub-circuit; a driving transistor; a first compensation sub-circuit; a second compensation sub-circuit; and a light-emitting element. The power supply selection circuit is coupled to the first power supply terminal, the second power supply terminal, a first switch control terminal, a second switch control terminal and the third node respectively, and is configured to selectively transmit a first power supply signal at the first power supply terminal and a second power supply signal at the second power supply terminal to the third node under control of the first switch control terminal and the second switch control terminal.
    Type: Application
    Filed: January 13, 2020
    Publication date: December 2, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Tian Dong
  • Publication number: 20210350748
    Abstract: A driving backplane includes: a base, and first, second and third insulating layers, pixel driving circuits, data lines and first power supply voltage lines that are disposed on the base. The pixel driving circuit is electrically connected to a data line and a first power supply voltage line. The pixel driving circuit includes a driving transistor, a first switching transistor, and a first conductive pattern located on a side, away from the base, of a gate of the driving transistor and a gate of the first switching transistor. The first conductive pattern is electrically connected to the gate of the driving transistor through a first via, and to a second electrode of the first switching transistor through a second via. An orthogonal projection of the first conductive pattern on the base is located within an orthogonal projection of the first power supply voltage line on the base.
    Type: Application
    Filed: July 20, 2021
    Publication date: November 11, 2021
    Inventors: Tian DONG, Li WANG
  • Publication number: 20210327348
    Abstract: A pixel circuit, comprising: a compensation sub-circuit (30), and a storage sub-circuit (40). The compensation sub-circuit (30) is configured to adjust a potential of a second node (P2) based on a potential of a first node (P1) in response to a first control signal from a first control signal terminal (S1), and to adjust a potential of the control node (P3) based on a potential of a first terminal of a driving transistor (M0) in response to a second control signal from a second control signal terminal (S2). The storage sub-circuit (40) is configured to adjust the potential of the control node (P3) based on the potential of the second node (P2). The driving transistor (M0) is a N-type transistor.
    Type: Application
    Filed: May 31, 2019
    Publication date: October 21, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Tian Dong
  • Publication number: 20210327344
    Abstract: A pixel circuit and a driving method thereof, a display panel and a display device are provided. The pixel circuit includes a drive circuit, a first reset bias circuit, and a second reset bias circuit. A control terminal of the drive circuit is electrically connected to the first reset bias circuit, a first terminal of the drive circuit is electrically connected to the second reset bias circuit; the first reset bias circuit is further electrically connected to a first control terminal and a first bias voltage terminal; the second reset bias circuit is further electrically connected to a bias control terminal and a second bias voltage terminal; the first reset bias circuit and the second reset bias circuit are configured to control the drive circuit to be in a bias state during a reset phase.
    Type: Application
    Filed: August 24, 2018
    Publication date: October 21, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Tian DONG
  • Publication number: 20210327360
    Abstract: The disclosure relates to a display panel. The display panel may include a pixel unit group and a scanning circuit. The pixel unit group may include a first pixel unit and a second pixel unit. The scanning circuit may include a first scan signal terminal and a second scan signal terminal. The first scan signal terminal may be configured to simultaneously provide a same gate signal to the first pixel unit and the second pixel unit, and/or the second scan signal terminal may be configured to simultaneously provide a same light emitting control signal to the first pixel unit and the second pixel unit.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 21, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Tian Dong
  • Patent number: 11114005
    Abstract: A pixel structure is disclosed. The pixel structure includes: a plurality of scanning lines; a plurality of data lines intersecting the plurality of scanning lines; and a plurality of sub-pixels which are located at respective intersections of the plurality of scanning lines and the plurality of data lines and are arranged in rows and columns. (4n+1)th and (4n+2)th data lines of the plurality of data lines are located on opposite sides of a (2n+1)th column of sub-pixels respectively. (4n+3)th and (4n+4)th data lines of the plurality of data lines are located on opposite sides of a (2n+2)th column of sub-pixels respectively. The (4n+2)th and (4n+3)th data lines of the plurality of data lines are located between the (2n+1)th column of sub-pixels and the (2n+2)th column of sub-pixels, where n is an integer greater than or equal to 0.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: September 7, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tian Dong, Li Wang, Qian Yang
  • Publication number: 20210233450
    Abstract: A driving circuit for a display panel is disclosed, where the display panel comprises data lines. The driving circuit for the display panel includes a share line coupled to the data lines; a power supply circuit connected to the share line, and configured to provide a share voltage to the share line; and switch units coupled to the data lines, where each of the switch units has a first end coupled to the share line and a second end coupled to a corresponding one of the data lines, and the switch units are configured to, in a share phase, connect the data lines and transmit the share voltage on the share line to the data lines in response to a control signal. The display panel drive circuit can reduce the power consumption of a source drive circuit of the display panel.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 29, 2021
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Xinshe YIN, Tian DONG
  • Publication number: 20210217339
    Abstract: The present disclosure relates to a gate driving circuit applied to a foldable display panel comprising B display areas arranged in order. The gate driving circuit may include B gate driving subcircuits and a control circuit. Each of the gate driving subcircuits may correspond to one of the display areas and each of the gate driving subcircuits may comprise a plurality of stage gate driving units. The control circuit may be configured to, when the foldable display panel is in a full screen display state, control a type of an input signal in a last stage gate driving unit of a bth gate driving subcircuit to be the same as a type of an input signal in a first stage gate driving unit of a (b+1)th gate driving subcircuit, where B is an integer greater than 1 and b is a positive integer less than B.
    Type: Application
    Filed: October 18, 2019
    Publication date: July 15, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Zheng, Libin Liu, Li Wang, Tian Dong, Guangliang Shang, Xinshe Yin
  • Publication number: 20210183313
    Abstract: Embodiments of the present disclosure provide a driving backplane and a display panel. The driving backplane has a plurality of sub-pixel regions, and includes: a base; a plurality of pixel driving circuits disposed on the base, one of the plurality of pixel driving circuits being disposed in one of the plurality of sub-pixel regions; and a plurality of data lines and a plurality of first power supply voltage lines disposed on the base. The pixel driving circuit is electrically connected to a data line and a first power supply voltage line. The data line and the first power supply voltage line are disposed on a side, away from the base, of the pixel driving circuit, and the data line and the first power supply voltage line are disposed at intervals in a same layer. An orthographic projection of the data line on the base overlaps with an orthographic projection of the pixel driving circuit on the base.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 17, 2021
    Inventors: Tian DONG, Li WANG
  • Publication number: 20210090484
    Abstract: A shift register unit, a driving method, a gate driving circuit and a display device are provided. The shift register unit includes a first gate driving output circuit and a second gate driving output circuit. The first gate driving output circuit is used to output a first gate driving signal through the first gate driving signal output terminal; the second gate driving output circuit is used to generate a second gate driving signal outputted simultaneously with the first gate driving signal based on the first gate driving signal, a first clock signal and a second clock signal. In the present disclosure, the second gate driving output circuit is added, the first gate driving signal, the first clock signal, and the second clock signal are used to generate an inverted second gate driving signal, so that positive and negative switching control signals are generated by one stage of shift register unit.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 25, 2021
    Inventors: Guangliang SHANG, Can ZHENG, Jiangnan LU, Tian DONG, Libin LIU, Long HAN, Shiming SHI, Dawei WANG
  • Patent number: 10923027
    Abstract: The present disclosure provides a driving method, a display panel and a control method thereof. The driving circuit is configured to drive pixel circuits arranged in an array. The driving circuit includes a plurality of driving modules and a plurality of data writing modules. Each of the plurality of driving modules is connected to two adjacent rows of the pixel circuits through a controlling line and is configured to drive the two adjacent rows of the pixel circuits simultaneously. Each of the plurality of data writing modules is connected to a data line and one column of the pixel circuits, respectively, and is configured to write display data of the data line into a pixel circuit of odd row and a pixel circuit of even row in the one column of pixel circuits in a time sharing manner in response to the driving modules driving the pixel circuits.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: February 16, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tian Dong, Shiming Shi
  • Publication number: 20210012713
    Abstract: Embodiments of the present disclosure provide a pixel driving circuit and a driving method thereof, a display panel, and a display device. The pixel driving circuit comprises: a driving transistor connected to a first node, a first power supply voltage terminal and one end of a light emitting unit; a switching subcircuit connected to a first scanning terminal, the first node and a data voltage terminal; and a compensation subcircuit connected to the first node, a second scanning terminal, a first voltage terminal and a reference voltage terminal.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 14, 2021
    Applicant: BOE Technology Group Co., Ltd.
    Inventor: Tian Dong
  • Patent number: 10887990
    Abstract: A power line structure, an array substrate including the power line structure and a display panel are provided. The power line structure (100) includes a conductive plate (110), the conductive plate (110) includes a through hole disposing area (103), the through hole disposing area (103) is provided with a plurality of via holes (101); in at least one sub-area of the through hole disposing area (103), a distribution density of the via holes (101) increases along a direction of decreasing a current density in the conductive plate (110).
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: January 5, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yunfei Li, Tian Dong
  • Publication number: 20200380903
    Abstract: A pixel structure is disclosed structure includes: a plurality of scanning lines; a plurality of data lines intersecting the plurality of scanning lines; and a plurality of sub-pixels which are located at respective intersections of the plurality of scanning lines and the plurality of data lines and are arranged in rows and columns. (4n+1)th and (4n+2)th data lines of the plurality of data lines are located on opposite sides of a (2n+1)th column of sub-pixels respectively. (4n+3)th and (4n+4)th data lines of the plurality of data lines are located on opposite sides of a (2n+2)th column of sub-pixels respectively. The (4n+2)th and (4n+3)th data lines of the plurality of data lines are located between the (2n+1)th column of sub-pixels and the (2n+2)th column of sub-pixels, where n is an integer greater than or equal to 0.
    Type: Application
    Filed: July 23, 2019
    Publication date: December 3, 2020
    Inventors: Tian Dong, Li Wang, Qian Yang
  • Publication number: 20200348787
    Abstract: The present disclosure provides a flexible touch panel and a display device. The flexible touch panel includes a flexible substrate baseplate, and a touch electrode layer including a plurality of touch electrodes arranged on the flexible substrate baseplate. The flexible touch panel includes at least one bendable area, and at least one of the plurality of touch electrodes has a cutoff region within the bendable area to disconnect the touch electrode.
    Type: Application
    Filed: July 17, 2020
    Publication date: November 5, 2020
    Inventors: Lingran WANG, Tian DONG, Shiming SHI
  • Patent number: 10806025
    Abstract: A foldable display device is provided. The foldable display device includes a flexible display panel including a first display region, a second display region and a bending region and having a first state and a second state; and a first panel supporting frame and a second panel supporting frame configured to support the first display region and the second display region, respectively. In the first state, the first and the second panel supporting frames overlap with each other; and in the second state, the first and the second panel supporting frames are in a same plane and form an accommodation space in which the bending region is accommodated, and a first border of the first display region and a fifth border of the second display region abut against and are in contact with each other to form a structure of flat panel display.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: October 13, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Tian Dong