Patents by Inventor Libin Liu

Libin Liu 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).

  • Publication number: 20220328572
    Abstract: A display substrate and a display device. The display substrate includes a first sub-pixel (111), a second sub-pixel (112), and a first spacer (0101). A line connecting the center (C1) of the first sub-pixel (111) and the center (C2) of the second sub-pixel (112) is a center line (CL1); the center line (CL1) is not perpendicular to a first direction (X); the first direction (X) is at least one of the row direction or the column direction. The first spacer (0101) is disposed between the first sub-pixel (111) and the second sub-pixel (112), and the extension direction (E01) of first spacer (0101) between the first sub-pixel (111) and the second sub-pixel (112) is not perpendicular to the first direction (X). Therefore, the display substrate can improve the different viewing angle color cast and improve the display quality.
    Type: Application
    Filed: June 23, 2022
    Publication date: October 13, 2022
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Libin LIU, Qian YANG, Hongli WANG, Lujiang HUANGFU
  • Patent number: 11462149
    Abstract: Embodiments of the present disclosure provide a shift register unit and a method foe driving the same, a gate driving circuit, and a display device. The shift register unit includes: a control circuit coupled to an input signal terminal, a clock signal terminal, and an output control terminal, and configured to provide an output control signal to the output control terminal based on a signal from the input signal terminal and a signal from the clock signal terminal; and an output circuit coupled to the output control terminal, an output signal terminal, and a threshold voltage control terminal, and configured to provide an output signal to the output signal terminal under control of a potential at the output control terminal, and adjust a threshold voltage of at least one of a plurality of transistors in the output circuit under control of a signal from the threshold voltage control terminal.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: October 4, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Guangliang Shang, Jiangnan Lu, Jie Zhang, Yu Feng, Libin Liu
  • Patent number: 11462591
    Abstract: A display substrate and a display device. The display substrate comprises a first sub-pixel (111), a second sub-pixel (112), and a first spacer (0101). A line connecting the center (C1) of the first sub-pixel (111) and the center (C2) of the second sub-pixel (112) is a center line (CL1); the center line (CL1) is not perpendicular to a first direction (X); the first direction (X) is at least one of the row direction or the column direction. The first spacer (0101) is disposed between the first sub-pixel (111) and the second sub-pixel (112), and the extension direction (E01) of first spacer (0101) between the first sub-pixel (111) and the second sub-pixel (112) is not perpendicular to the first direction (X). Therefore, the display substrate can improve the different viewing angle color cast and improve the display quality.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: October 4, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Libin Liu, Qian Yang, Hongli Wang, Lujiang Huangfu
  • Publication number: 20220302240
    Abstract: The present disclosure discloses a display panel, a preparation method thereof and a display device. A first conducting layer includes a first electrode layer, a second conducting layer includes a second electrode layer, a third conducting layer includes a third electrode layer, an orthographic projection of the first electrode layer on a base substrate, an orthographic projection of the second electrode layer on the base substrate and an orthographic projection of the third electrode layer on the base substrate have an overlap region with one another, in this way, the first electrode layer and the third electrode layer may be electrically connected with each other to serve as one electrode of a storage capacitor, the second electrode layer may serve as another electrode of the storage capacitor, thus the storage capacitor may be formed in a sandwich capacitor mode, and a capacitance value of the storage capacitor may be increased.
    Type: Application
    Filed: July 23, 2020
    Publication date: September 22, 2022
    Inventors: Jie ZHANG, Libin LIU
  • Patent number: 11450723
    Abstract: The present disclosure provides a wire layout of a pixel driving circuit. The circuit includes: a first switching element, a control terminal of the first switching element being coupled to a scan signal line, a first terminal of the first switching element being coupled to a data signal line; and a driving transistor, a first terminal of the driving transistor being coupled to a power signal line; wherein a first distance between the data signal line and the control terminal of the driving transistor is greater than a second distance between the first power signal line and the control terminal of the driving transistor.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: September 20, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Yipeng Chen, Libin Liu, Yunfei Li
  • Patent number: 11443543
    Abstract: An ultrasonic signal detecting circuit, an ultrasonic signal detecting method, and a display panel. The ultrasonic signal detecting circuit includes a control sub-circuit and a sensing sub-circuit. The sensing sub-circuit detects an ultrasonic echo signal, and generates a piezoelectric signal, which includes a first sub signal and a second sub-signal, according to the ultrasonic echo signal, the voltage value of one of the first and second sub-signals are higher than the value of a reference voltage signal, and that of the other one of the first and second sub-signals are lower than the reference voltage signal. The control sub-circuit is electrically connected to the sensing sub-circuit. Under control of the first sub-signal, a first power supply end and an output end of the control sub-circuit are turned on; and under control of the second sub-signal, the first power supply end and the output end of the control sub-circuit are turned on.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: September 13, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Yu Feng, Libin Liu
  • Publication number: 20220277693
    Abstract: The present disclosure provides a pixel circuit including: a driving transistor and a voltage control circuit; wherein in the voltage control circuit, at least one transistor directly coupled to a gate of the driving transistor is an oxide thin film transistor. The disclosure also provides a display substrate and a display apparatus.
    Type: Application
    Filed: May 15, 2022
    Publication date: September 1, 2022
    Inventors: Yipeng CHEN, Libin LIU, Lujiang HUANGFU
  • Publication number: 20220271114
    Abstract: Provided are a display substrate, an organic light-emitting display panel, and a display device. A shielding layer is arranged between a first gate metal layer and a source-drain metal layer such that same are insulated from each other, an orthographic projection, on a base substrate, of the shielding layer covers at least an orthographic projection, on the base substrate, of an overlapping area of a scanning signal line and a detection signal line, and the shielding layer is coupled to a fixed voltage.
    Type: Application
    Filed: January 22, 2021
    Publication date: August 25, 2022
    Inventors: Xinshe YIN, Tian DONG, Libin LIU
  • Patent number: 11417713
    Abstract: A substrate and a manufacturing method therefor, and an electronic device are provided. The substrate includes: a base substrate including a working region, and a non-working region outside of the working region, the non-working region including a peripheral circuit region near the working region and a non-circuit region away from the working region; a peripheral circuit in the peripheral circuit region; a common electrode lead in the non-working region; a common electrode; and a bridging conductive layer made of opaque conductive material in the non-working region and electrically connects the common electrode and the common electrode lead. An orthographic projection of the bridging conductive layer on the base substrate at least partially coincides with an orthographic projection of the peripheral circuit region on the base substrate, and bridging conductive layer is insulated from the peripheral circuit.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: August 16, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lujiang Huangfu, Libin Liu, Yipeng Chen
  • Patent number: 11417826
    Abstract: The embodiments of the present disclosure disclose an ultrasonic sensor, a manufacturing method thereof, and a display device. The ultrasonic sensor includes a substrate and at least one sensor component located on the substrate. The sensor component includes a first electrode, a second electrode, and a piezoelectric layer located between the first electrode and the second electrode. The substrate is provided with a groove on a side close to the sensor component, and the orthographic projection of the piezoelectric layer on the substrate has a portion overlapping with a region of the groove in the substrate.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 16, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Libin Liu, Qian Yang
  • Patent number: 11393396
    Abstract: A pixel circuit and a driving method thereof, and a display panel. The pixel circuit includes a reset circuit, a data writing circuit, a compensation circuit, and a driving circuit. The reset circuit is configured to apply a reset voltage to the first terminal of the light-emitting element to reset the first terminal of the light-emitting element; the data writing circuit is configured to write a data signal to the first terminal of the driving circuit; the compensation circuit is configured to write the reset voltage into the control terminal of the driving circuit when the reset circuit applies the reset voltage, and to write a compensation signal based on the data signal into the control terminal of the driving circuit when the data writing circuit writes the data signal; and the driving circuit is configured to control a driving current for driving the light-emitting element to emit light.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: July 19, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qian Yang, Libin Liu
  • Publication number: 20220216290
    Abstract: The present disclosure discloses a display substrate and a display device. The display substrate comprises: a display area, a binding area, and a fan-out area located between the display area and the binding area, the fan-out area comprises a touch control lead wire, a data lead wire, and at least one shielded wire located between the touch control lead wire and the data lead wire, and the at least one shielded wire is grounded or connected to a fixed potential.
    Type: Application
    Filed: October 21, 2021
    Publication date: July 7, 2022
    Inventors: Can ZHENG, Libin LIU, Shiming SHI, Zewen BO
  • Patent number: 11380374
    Abstract: Embodiments of the present disclosure disclose a shift register unit, a driving method thereof, and a device. The shift register unit includes an input circuit, a node control circuit, a first control output circuit, a second control output circuit and an output circuit. By providing the first control output circuit and the second control output circuit, the first control output circuit and the second control output circuit may operate alternately, so that the first control output circuit and the second control output circuit may have time for characteristics recovery respectively, thus improving the service life and output stability of the shift register unit.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: July 5, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Guangliang Shang, Xinshe Yin, Qian Yang, Libin Liu, Shiming Shi, Dawei Wang
  • Patent number: 11373429
    Abstract: A fingerprint recognition substrate, a fingerprint recognition apparatus, a manufacturing method thereof, a fingerprint recognition method, and a display device are provided. The fingerprint recognition substrate includes a base substrate including a plurality of pixel regions and a region between the plurality of pixel regions, a first electrode in the plurality of pixel regions, a light emitting layer at least in the plurality of pixel regions, and a second electrode at least in the plurality of pixel regions, and at least a plurality of light transmission holes penetrating the first electrode. At least one light transmission hole is in the region between the plurality of pixel regions, and the plurality of light transmission holes are configured to be optically coupled to a photosensor.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: June 28, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Libin Liu, Hao Zhang, Shuai Zhang
  • Publication number: 20220199022
    Abstract: The present disclosure provides a display panel, a pixel circuit and a method for driving the pixel circuit, the pixel circuit includes: a storage capacitor circuit; a light-emitting element; a driving transistor; a reset circuit, the reset circuit is configured to receive a reset control signal and reset a first node and a second node according to the reset control signal, or receive a writing control signal and/or a timing sequence control signal of an adjacent pixel row and reset the first node and the second node according to the writing control signal and/or the timing sequence control signal of the adjacent pixel row; a threshold compensation circuit, configured to receive a compensation control signal and write a compensation voltage into the first node according to the compensation control signal; a writing circuit; and a light-emitting control circuit.
    Type: Application
    Filed: January 14, 2021
    Publication date: June 23, 2022
    Inventors: Lujiang HUANGFU, Libin LIU, Can ZHENG
  • Patent number: 11367398
    Abstract: A pixel circuit includes a potential compensation subcircuit configured to control a junction voltage of a light emitting element to be within a preset voltage range according to an initial voltage input by an initialization reset voltage terminal and a reset sequence input by a reset sequence signal terminal. The preset voltage range is higher than zero and lower than an emission threshold voltage of the light emitting element.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: June 21, 2022
    Assignee: BOE Technology Group Co, Ltd.
    Inventors: Lujiang Huangfu, Li Wang, Libin Liu
  • Publication number: 20220189401
    Abstract: Embodiments of the present disclosure provide a pixel circuit, a display substrate, a display device and a pixel driving method. In the pixel circuit, a threshold compensation circuit is coupled to a third control signal line, a control electrode of a driving transistor, first and second electrodes of the driving transistor, a first power terminal and a fixed voltage terminal, and is configured to acquire a threshold voltage of the driving transistor, and apply first and second control voltages respectively to the control and second electrodes of the driving transistor in response to the control of a second control signal line and the control of the third control signal line, and a difference between the first control voltage and the second control voltage is related to the threshold voltage of the driving transistor. Thus, the compensation for the threshold voltage and the power supply voltage can be realized.
    Type: Application
    Filed: January 14, 2021
    Publication date: June 16, 2022
    Inventors: Tian DONG, Libin LIU
  • Publication number: 20220181419
    Abstract: A display substrate includes: a base substrate; a light-emitting unit in each pixel region and including a first electrode, an organic light-emitting layer, and a second electrode sequentially disposed in a direction away from the base substrate; an auxiliary conductive layer between the light-emitting unit and the base substrate; a pixel circuit in each pixel region and including a driving transistor. The auxiliary conductive layer is on a side of the pixel circuit away from the base substrate, the second electrode has a portion extending out of the pixel region and coupling to the auxiliary conductive layer through a via hole not overlapping the pixel region, the auxiliary conductive layer is insulated and spaced apart from the first electrode and has a mesh or chain shape, and a material of the auxiliary conductive layer is the same as a material of the first and second electrodes of the driving transistor.
    Type: Application
    Filed: February 25, 2021
    Publication date: June 9, 2022
    Inventors: Yuhan QIAN, Libin LIU, Jiangnan LU, Mei LI, Shiming SHI, Jie ZHANG
  • Publication number: 20220181093
    Abstract: A supercapacitor contains the zwitterionic polymer hydrogel electrolyte. A change rate of a capacitance retention of the supercapacitor, relative to a specific area capacity at 25° C. is less than 25% at extreme temperature. When temperature is increased to 60° C. or reduced to ?30° C. the specific area capacity is changed to 178 mF cm?2 and 134 mF cm?2, which are 104% and 78% of that at 25° C. indicating an excellent electrochemical property at the extreme temperature.
    Type: Application
    Filed: November 3, 2021
    Publication date: June 9, 2022
    Inventors: Libin LIU, Jianbo YANG, Qing BAN, Ligang GAI, Xuelin LI, Mei LI
  • Patent number: 11354927
    Abstract: A fingerprint identification device, a display panel, a fabrication method thereof, and a display device are disclosed. The fingerprint identification device includes a fingerprint sensor, an aperture diaphragm, and a first shielding structure. The fingerprint sensor includes a plurality of sensing units; the aperture diaphragm is on a light incident side of the fingerprint sensor and includes an aperture through which light is allowed to be incident on at least one sensing unit of the fingerprint sensor; and the first shielding structure is on a side of the aperture diaphragm facing away from the fingerprint sensor, and surrounds at least a portion of the aperture.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: June 7, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianchao Zhu, Libin Liu