Patents by Inventor Dianzheng DONG

Dianzheng 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: 10176782
    Abstract: The present disclosure discloses a TFT and a manufacturing method thereof, an array substrate, a display panel and a driving method thereof, and a display device, which relates to the field of display technology, and is provided for solving a problem of a larger overall power consumption of the display device. The TFT comprises a substrate; a first gate, a bottom gate dielectric layer and an insulating layer sequentially stacked on the substrate; a source and a drain arranged on the insulating layer; and a top gate dielectric layer, a second gate and a passivation layer sequentially stacked on the source, the drain and the insulating layer, wherein the first gate or the second gate is a photosensitive material gate. The TFT and the display panel provided by the present disclosure are applied in the display device.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: January 8, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Bin Zhang, Dianzheng Dong, Kan Zhang, Pengming Chen
  • Patent number: 10140922
    Abstract: A pixel driving circuit and a driving method thereof, and a display device are provided. The pixel driving circuit includes input module, compensation module, drive module, light emitting module and control signal input module. The input module is configured to transmit a signal of a data voltage terminal to the compensation module under control of first gate signal terminal. The compensation module is configured to compensate for a threshold voltage of the drive module under control of the input module and a threshold voltage control terminal. The drive module is configured to drive the light emitting module to emit light under control of first control signal terminal. The control signal input module is configured to transmit a signal of second voltage terminal or third voltage terminal to the first control signal terminal under control of second control signal terminal and third control signal terminal.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: November 27, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Guangxing Wang, Bin Zhang, Dianzheng Dong, Qiang Zhang, Kan Zhang
  • Patent number: 10139659
    Abstract: The present disclosure provides a buffer structure and a display device. The buffer structure includes a deformable sealed capsule, and a flowable filler in a hollow part of the sealed capsule. For the buffer structure according to the present disclosure, the hollow part of the deformable sealed capsule is provided with the flowable filler, when the display device suffers uneven internal forces resulting from deformation of the liquid crystal panel or the backboard, the flowable filler in the hollow part of the buffer structure flows to a position suffering a smaller force from a position suffering a larger force until achieving the force balance, thereby to reduce difference of forces at different positions in the display device and further improve light leakage phenomenon caused by uneven forces.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: November 27, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Dianzheng Dong
  • Publication number: 20180293925
    Abstract: The disclosure discloses a shift register unit, a driving method thereof, a gate driving circuit and a display device. The shift register unit comprises an input circuit, a reset circuit, a control circuit, a pull-down circuit and an output circuit, a first control terminal of the output circuit is coupled to a first node, its first input terminal is coupled to a second clock signal terminal, its first output terminal is coupled to a signal output terminal, both terminals of the pull-down circuit are coupled to a first clock signal terminal and the first node, respectively, and the pull-down circuit may pull down the potential of the first node via the first clock signal terminal, which may thus avoid that the potential of the first node also rises when the potential of the second clock signal terminal rises, and the signal of the second clock signal terminal is mistakenly provided to the signal output terminal to cause various poor display.
    Type: Application
    Filed: May 10, 2017
    Publication date: October 11, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Dianzheng DONG, Bin ZHANG, Ming TIAN, Qiang ZHANG, Guangxing WANG, Kan ZHANG, Pengming CHEN
  • Publication number: 20180240426
    Abstract: Embodiments of the present disclosure relate to a pixel circuit, comprising: a liquid crystal capacitor; a selection unit having a first input terminal for receiving a row control signal and a second input terminal for receiving a column control signal, and configured to generate a selection signal indicating whether to select the liquid crystal capacitor according to the row control signal and the column control signal and output the selection signal via an output terminal of the selection unit; and a grayscale voltage writing unit having a first input terminal connected to the output terminal of the selection unit, a second input terminal for receiving a grayscale voltage, a first output terminal connected to a first terminal of the liquid crystal capacitor, and a second output terminal connected to a first voltage, and configured to write a corresponding grayscale voltage of multiple grayscale voltages into the liquid crystal capacitor when the selection signal indicates that the liquid crystal capacitor i
    Type: Application
    Filed: February 20, 2017
    Publication date: August 23, 2018
    Inventors: Pengming Chen, Weitao Chen, Bin Zhang, Dianzheng Dong, Kan Zhang
  • Publication number: 20180233073
    Abstract: This disclosure relates to a device and method for detecting performance of panel driving circuit. The device comprises a plurality of point light sources, a plurality of optical fibers, a light source driving circuit and a detection circuit. The predetermined point light sources are corresponding to predetermined optical fibers, the predetermined optical fibers being one optical fiber or multiple optical fibers of a predetermined combination corresponding to elements of the panel driving circuit. The optical fibers are configured for transmitting the light emitted by the point light sources onto the elements of the panel driving circuit. The detection circuit is for obtaining a performance parameter of the element of the panel driving circuit based on a corresponding relationship between an intensity of illumination for the element of the panel driving circuit and a current value of the element as well as an output signal of the panel driving circuit.
    Type: Application
    Filed: September 5, 2016
    Publication date: August 16, 2018
    Inventors: Dianzheng Dong, Bin Zhang, Qiang Zhang, Guangxing Wang, Kan Zhang, Junwei Wang, Xin Gai
  • Patent number: 10049634
    Abstract: The disclosure provides a pixel circuit and a driving method thereof, a driving circuit, and a display device, which pertains to the field of pixel driving technology. The pixel circuit includes a capacitor, a capacitor charging transistor, a first and second capacitor discharging transistor. The capacitor is charged to a first voltage greater than the pixel voltage when the capacitor charging transistor is turned on. The capacitor is connected in series with the first and second capacitor discharging transistor to form a discharge circuit, and the capacitor is discharged when the first and second capacitor discharging transistor are turned on so that the voltage across the capacitor drops from the first voltage to the pixel voltage. There is no need to arrange a Gamma resistor for the driving circuit for the pixel circuit array provided by the disclosure, which makes the structure simple and the power consumption in driving low.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: August 14, 2018
    Assignees: Boe Technology Group Co., Ltd., Beijing Boe Display Technology Co., Ltd.
    Inventors: Kan Zhang, Bin Zhang, Pengming Chen, Guangxing Wang, Qiang Zhang, Dianzheng Dong
  • Publication number: 20180226027
    Abstract: A pixel driving circuit and a driving method thereof, and a display device are provided. The pixel driving circuit includes input module, compensation module, drive module, light emitting module and control signal input module. The input module is configured to transmit a signal of a data voltage terminal to the compensation module under control of first gate signal terminal. The compensation module is configured to compensate for a threshold voltage of the drive module under control of the input module and a threshold voltage control terminal. The drive module is configured to drive the light emitting module to emit light under control of first control signal terminal. The control signal input module is configured to transmit a signal of second voltage terminal or third voltage terminal to the first control signal terminal under control of second control signal terminal and third control signal terminal.
    Type: Application
    Filed: August 19, 2016
    Publication date: August 9, 2018
    Inventors: Guangxing WANG, Bin ZHANG, Dianzheng DONG, Qiang ZHANG, Kan ZHANG
  • Patent number: 10031616
    Abstract: A touch feedback circuit and driving method thereof, and a touch display device are disclosed, so that the user's finger can feel feedback from a touch display, thereby improving the user experience. The touch feedback circuit comprises a deformation element, at least one control module, a control line, a first signal line and a first voltage terminal, wherein the control module is configured to output a signal provided by the first signal line to the deformation element under the control of the control line, the deformation element is configured to deform under the control of the control module and the first voltage terminal, the control line and the first signal line are used to control the deformation element corresponding to a determined touch position.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: July 24, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Guangxing Wang, Bin Zhang, Kan Zhang, Dianzheng Dong, Qiang Zhang, Pengming Chen
  • Patent number: 10026376
    Abstract: The present disclosure provides a power management integrated circuit (PMIC) and a display device. The PMIC includes an FBN and a DC voltage output unit configured to output different DC voltages to the FBN in a time-division manner.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: July 17, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Chiachia Sung, Lei Liu, Dianzheng Dong, Chengte Lai, Guangxing Wang
  • Publication number: 20180174552
    Abstract: The present disclosure discloses a TFT and a manufacturing method thereof, an array substrate, a display panel and a driving method thereof, and a display device, which relates to the field of display technology, and is provided for solving a problem of a larger overall power consumption of the display device. The TFT comprises a substrate; a first gate, a bottom gate dielectric layer and an insulating layer sequentially stacked on the substrate; a source and a drain arranged on the insulating layer; and a top gate dielectric layer, a second gate and a passivation layer sequentially stacked on the source, the drain and the insulating layer, wherein the first gate or the second gate is a photosensitive material gate. The TFT and the display panel provided by the present disclosure are applied in the display device.
    Type: Application
    Filed: July 1, 2016
    Publication date: June 21, 2018
    Inventors: Bin Zhang, Dianzheng Dong, Kan Zhang, Pengming Chen
  • Patent number: 9972249
    Abstract: A pixel structure, a driving method of the pixel structure, an organic light emitting display panel and a display apparatus. The pixel structure includes N light emitting devices, pixel compensation circuits connected with the light emitting devices in one-to-one correspondence, one potential conversion circuit, and one voltage input control circuit. The pixel compensation circuits are connected to the same potential conversion circuit and the same voltage input control circuit, so that pixel compensation circuits share one potential conversion circuit and one voltage input control circuit, the occupation area of the pixel compensation circuits in pixel regions can be reduced, so that the aperture ratio of each pixel region is improved.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: May 15, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Kan Zhang, Dianzheng Dong, Bin Zhang, Qiang Zhang, Guangxing Wang, Pengming Chen
  • Publication number: 20180096654
    Abstract: Disclosed are a pixel circuit, a display panel and a display device. The pixel circuit includes driving circuits which are in one-to-one correspondence to data lines, each driving circuit being disposed in a peripheral area of a display panel; compensating circuits which are in one-to-one correspondence to gate lines, each compensating circuit being disposed in a peripheral area of the display panel; and light emitting devices. Each compensating circuit outputs a first reference signal or a second reference signal to the corresponding driving circuit. Each driving circuit drives a corresponding light emitting device to emit light through a signal from the corresponding compensating circuit and a data signal from the corresponding data line. The pixel circuit of the present disclosure can improve the aperture ratio of a pixel unit.
    Type: Application
    Filed: September 30, 2016
    Publication date: April 5, 2018
    Inventors: Guangxing WANG, Bin ZHANG, Dianzheng DONG, Kan ZHANG, Qiang ZHANG
  • Publication number: 20180082637
    Abstract: A pixel structure, a driving method of the pixel structure, an organic light emitting display panel and a display apparatus. The pixel structure includes N light emitting devices, pixel compensation circuits connected with the light emitting devices in one-to-one correspondence, one potential conversion circuit, and one voltage input control circuit. The pixel compensation circuits are connected to the same potential conversion circuit and the same voltage input control circuit, so that pixel compensation circuits share one potential conversion circuit and one voltage input control circuit, the occupation area of the pixel compensation circuits in pixel regions can be reduced, so that the aperture ratio of each pixel region is improved.
    Type: Application
    Filed: November 8, 2016
    Publication date: March 22, 2018
    Inventors: Kan ZHANG, Dianzheng DONG, Bin ZHANG, Qiang ZHANG, Guangxing WANG, Pengming CHEN
  • Publication number: 20180047364
    Abstract: A circuit for powering off a liquid crystal panel, a peripheral drive device, and a liquid crystal panel. In the circuit for powering off a liquid crystal panel, a switch module is coupled to an enable signal transmission line, a common electrode and respective data lines of the liquid crystal panel, and is configured to be switched on upon receiving an enable signal, to connect the respective data lines to the common electrode. A peripheral drive device comprises: a reset signal generation module, a first, second and third control module, a data line drive module, a common electrode drive module, and a gate drive module. The reset signal generation module outputs a first reset signal when a driving voltage of a liquid crystal panel is less than a set value. The first control module outputs an enable signal in response to the first reset signal. The second control module drives the gate drive module to scan of gate lines for at least one frame in response to the first reset signal.
    Type: Application
    Filed: June 28, 2016
    Publication date: February 15, 2018
    Inventors: Dianzheng DONG, Bin ZHANG, Qiang ZHANG, Guangxing WANG, Kan ZHANG, Yu HE
  • Publication number: 20180045986
    Abstract: An array substrate and a magneto-optical switch display. The array substrate includes: a thin film transistor T, a coil connected with the thin film transistor, and a magneto-optic crystal interposed in the coil, the coil and the magneto-optic crystal constituting a magneto-optical switch structure, and the magneto-optical switch structure can change a transmission rate of emergent light transmitting through the array substrate.
    Type: Application
    Filed: October 12, 2016
    Publication date: February 15, 2018
    Inventors: Pengming CHEN, Bin ZHANG, Dianzheng DONG, Kan ZHANG, Qiang ZHANG, Guangxing WANG
  • Publication number: 20180047358
    Abstract: There are disclosed a display substrate and a display device. The display substrate comprises a common electrode line, a plurality of pixel units with each comprising a pixel electrode and a plurality of first switch units disposed respectively between the common electrode line and the pixel electrodes. Each of the first switch unit is configured to be turned on within a pre-set time period after the display substrate is powered off to connect the pixel electrode to the common electrode line and be turned off when the display substrate is powered on to disconnect the pixel electrode from the common electrode line. In this way, after the power-off, the charges stored in the pixel electrode are neutralized in the common electrode line. Thus, the pixel electrode and the common electrode can be discharged by the same discharge circuit, which guarantees no DC residue in the discharged pixel electrode.
    Type: Application
    Filed: November 11, 2016
    Publication date: February 15, 2018
    Inventors: Kan ZHANG, Bin ZHANG, Dianzheng DONG, Guangxing WANG, Qiang ZHANG, Yu HE
  • Publication number: 20180012555
    Abstract: The disclosure provides a pixel circuit and a driving method thereof, a driving circuit, and a display device, which pertains to the field of pixel driving technology. The pixel circuit includes a capacitor, a capacitor charging transistor, a first and second capacitor discharging transistor. The capacitor is charged to a first voltage greater than the pixel voltage when the capacitor charging transistor is turned on. The capacitor is connected in series with the first and second capacitor discharging transistor to form a discharge circuit, and the capacitor is discharged when the first and second capacitor discharging transistor are turned on so that the voltage across the capacitor drops from the first voltage to the pixel voltage. There is no need to arrange a Gamma resistor for the driving circuit for the pixel circuit array provided by the disclosure, which makes the structure simple and the power consumption in driving low.
    Type: Application
    Filed: October 11, 2016
    Publication date: January 11, 2018
    Inventors: Kan Zhang, Bin Zhang, Pengming Chen, Guangxing Wang, Qiang Zhang, Dianzheng Dong
  • Publication number: 20180007793
    Abstract: This disclosure discloses a flexible printed circuit, a chip on film, and a bonding method and a display device using this flexible printed circuit and chip on film. The flexible printed circuit/chip on film of this disclosure a humidity detection layer located between a flexible base film and a metal foil, wherein the humidity detection layer and the flexible base film, and/or the humidity detection layer and the metal foil, are optionally bonded by an adhesive layer. The humidity detection layer can change resistance and/or color according to the humidity, so that intuitive and rapid localization of coating badness is performed directly (by color change) or by means of a detecting lead and an impedance/voltage detecting circuit, and finally the object of reducing the ratio of defective products is achieved.
    Type: Application
    Filed: September 22, 2016
    Publication date: January 4, 2018
    Inventors: Qiang Zhang, Bin Zhang, Dianzheng Dong, Guangxing Wang, Kan Zhang
  • Publication number: 20170371440
    Abstract: An optical touch substrate, an in-cell touch panel and a display device are disclosed. The optical touch substrate includes a base substrate, a light shielding matrix and a plurality of pixel regions defined by the light shielding matrix. The light shielding matrix includes a plurality of first optical touch electrodes and a plurality of second optical touch electrodes arranged to cross each other. The first optical touch electrodes are insulated from the second optical touch electrodes, and at least one optical touch electrode of the plurality of first optical touch electrodes and the plurality of second optical touch electrodes includes a photosensitive layer and a conductive layer provided in a stacked manner. A sensing signal on each optical touch electrode changes as an intensity of light irradiated to a corresponding photosensitive layer changes.
    Type: Application
    Filed: February 4, 2016
    Publication date: December 28, 2017
    Inventors: Jiajia Song, Dianzheng Dong, Junwei Wang