Patents by Inventor Yuheng Zhang

Yuheng Zhang 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: 20230116780
    Abstract: A display panel includes: a pixel circuit, and a light-emitting element, that the pixel circuit includes a driving transistor configured to provide a driving current for the light-emitting element; a working process of the pixel circuit includes a data writing stage, in which a gate of the driving transistor receives a data signal, and a bias adjustment stage, in which a source or drain of the driving transistor receives a bias adjustment signal; and the pixel circuit has a frame refresh frequency F1, and a data refresh frequency including a first data refresh frequency F11 and a second data refresh frequency F22, that at least one second data refresh period includes N11 bias adjustment stages, a bias adjustment signal V11 is inputted in a first bias adjustment stage, and a bias adjustment signal Vi is inputted in an i-th bias adjustment stage, where V11?Vi.
    Type: Application
    Filed: December 7, 2022
    Publication date: April 13, 2023
    Inventor: Yuheng ZHANG
  • Publication number: 20230078182
    Abstract: A display panel and a display device are provided. The display panel includes a pixel circuit, a driving circuit configured to provide a control signal for the pixel circuit, and a clock signal line configured to provide a clock signal for the driving circuit. A data refresh period of the pixel circuit includes a data writing stage and a holding stage, the holding stage includes N stage arranged in sequence and N>1. When the pixel circuit is operated in the data writing stage, the clock pulse frequency of the clock signal is a first frequency F1; when the pixel circuit is operated in the holding stage, in at least one of the N stages, the clock pulse frequency of the clock signal is a second frequency F2; and F1>F2>0.
    Type: Application
    Filed: December 30, 2021
    Publication date: March 16, 2023
    Inventors: Wanming HUANG, Jieliang LI, Yuheng ZHANG
  • Patent number: 11580898
    Abstract: A display panel and a display device are provided. The display panel includes a pixel circuit; and a light-emitting element. The operation process of the pixel circuit includes a first data refresh period, a data adjustment stage, and a second data refresh period set in sequence. The data adjustment stage includes T1 first sub-data adjustment stages set in sequence and T2 second sub-data adjustment stages set in sequence. A quantity of the data writing frames in the first sub-data adjustment stage is greater than a quantity of the data writing frames in the second sub-data adjustment stage. A quantity of the holding frames in the first sub-data adjustment stage is smaller than a quantity of the holding frames in the second sub-data adjustment stage.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: February 14, 2023
    Assignee: XIAMEN TIANMA DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wanming Huang, Jieliang Li, Yuheng Zhang
  • Publication number: 20230042293
    Abstract: A display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a driving module, and the driving module includes a driving transistor. A time period of one frame of the display panel includes a non-light-emitting stage and a light-emitting stage, and the non-light-emitting stage includes a bias adjustment stage, in which one of a source and a drain of the driving transistor receives a bias adjustment signal. An operating state of the pixel circuit includes a first mode and a second mode, a time length of the non-light-emitting stage in the first mode is L1, and a time length of the non-light-emitting stage in the second mode is L2, where L1>L2. A working process of the display panel in the first mode includes a first frame, and a working process of the display panel in the second mode includes a second frame.
    Type: Application
    Filed: September 6, 2022
    Publication date: February 9, 2023
    Inventor: Yuheng ZHANG
  • Publication number: 20230042146
    Abstract: Provided are a display panel and a display device. The display panel includes a pixel driver circuit. The pixel driver circuit includes a light-emitting module, a drive transistor and at least one light-emitting control transistor. The drive transistor, the light-emitting control transistor and the light-emitting module are connected in series between a first power supply signal terminal and a second power supply signal terminal, and at least one of the drive transistor or the light-emitting control transistor is a first double-gate transistor. The first double-gate transistor includes a first gate, a second gate and a first source, and the second gate is electrically connected to the first source.
    Type: Application
    Filed: October 17, 2022
    Publication date: February 9, 2023
    Applicant: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Lihua WANG, Yuheng ZHANG, Qiongqin MAO, Yang NAN, Tingting LI, Yimiao DING
  • Publication number: 20230045192
    Abstract: A display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a driving module, and the driving module includes a driving transistor. A time period of one frame of the display panel includes a non-light-emitting stage and a light-emitting stage, and the non-light-emitting stage includes a bias adjustment stage, in which one of a source and a drain of the driving transistor receives a bias adjustment signal. An operating state of the pixel circuit includes a first mode and a second mode, a time length of the non-light-emitting stage in the first mode is L1, and a time length of the non-light-emitting stage in the second mode is L2, where L1>L2. A working process of the display panel in the first mode includes a first frame, and a working process of the display panel in the second mode includes a second frame.
    Type: Application
    Filed: September 6, 2022
    Publication date: February 9, 2023
    Inventor: Yuheng ZHANG
  • Publication number: 20230044565
    Abstract: A display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a driving module. The driving module includes a driving transistor. A time period of one frame of the display panel includes a non-light-emitting stage and a light-emitting stage. The non-light-emitting stage includes a bias adjustment stage. A source or a drain of the driving transistor is configured to receive a bias adjustment signal in the bias adjustment stage. An operation state of the pixel circuit includes a first mode and a second mode. A time length of the non-light-emitting stage in the first mode is L1. A time length of the non-light-emitting stage in the second mode is L2. L1>L2. A time length of at least one sub-bias adjustment stage in a first frame is equal to a time length of at least one sub-bias adjustment stage in a second frame.
    Type: Application
    Filed: September 6, 2022
    Publication date: February 9, 2023
    Inventor: Yuheng ZHANG
  • Publication number: 20230039393
    Abstract: A display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a driving module and a compensation module. The driving module includes a driving transistor, and the compensation module is connected between a gate and a drain of the driving transistor. A time period of one frame of the display panel includes a non-light-emitting stage and a light-emitting stage, and the non-light-emitting stage includes a bias adjustment stage, in which one of a source and the drain of the driving transistor receives a bias adjustment signal. An operating state of the pixel circuit includes a first mode and a second mode, a time length of the non-light-emitting stage in the first mode is L1, and a time length of the non-light-emitting stage in the second mode is L2, where L1>L2.
    Type: Application
    Filed: September 6, 2022
    Publication date: February 9, 2023
    Inventor: Yuheng ZHANG
  • Publication number: 20230038629
    Abstract: A display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a driving module. The driving module includes a driving transistor. A time period of one frame of the display panel includes a non-light-emitting stage and a light-emitting stage. The non-light-emitting stage includes a bias adjustment stage. A source or a drain of the driving transistor is configured to receive a bias adjustment signal in the bias adjustment stage. In response to a frame refresh rate of the display panel being F1, a time length of the non-light-emitting stage is A1, and a time length of the bias adjustment stage is B1. In response to the frame refresh rate of the display panel being F2, the time length of the non-light-emitting stage is A2, and the time length of the bias adjustment stage is B2. F1<F2. B1/A1>B2/A2 or B1>B2.
    Type: Application
    Filed: September 6, 2022
    Publication date: February 9, 2023
    Inventor: Yuheng ZHANG
  • Publication number: 20230042030
    Abstract: A display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a driving module. The driving module includes a driving transistor, and is configured to provide a driving current for the light-emitting element. The pixel circuit includes a control terminal configured to receive a first light-emitting control signal, the first light-emitting control signal is an effective pulse, and the driving module corresponding to the control terminal is turned on during the effective pulse. A time period of one frame of the display panel includes a non-light-emitting stage and a light-emitting stage, an operating state of the pixel circuit includes a first mode and a second mode, a time length of the non-light-emitting stage in the first mode is L1, and a time length of the non-light-emitting stage in the second mode is L2, where L1>L2.
    Type: Application
    Filed: September 6, 2022
    Publication date: February 9, 2023
    Inventor: Yuheng ZHANG
  • Patent number: 11550600
    Abstract: Embodiments are generally directed to a system and method for adapting executable object to a processing unit. An embodiment of a method to adapt an executable object from a first processing unit to a second processing unit, comprises: adapting the executable object optimized for the first processing unit of a first architecture, to the second processing unit of a second architecture, wherein the second architecture is different from the first architecture, wherein the executable object is adapted to perform on the second processing unit based on a plurality of performance metrics collected while the executable object is performed on the first processing unit and the second processing unit.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: January 10, 2023
    Assignee: INTEL CORPORATION
    Inventors: Li Xu, Haihao Xiang, Feng Chen, Travis Schluessler, Yuheng Zhang, Sen Lin
  • Patent number: 11538412
    Abstract: The present disclosure provides a display panel, including: a pixel circuit, and a light-emitting element, that the pixel circuit includes a driving transistor configured to provide a driving current for the light-emitting element; a working process of the pixel circuit includes a data writing stage, in which a gate of the driving transistor receives a data signal, and a bias adjustment stage, in which a source or drain of the driving transistor receives a bias adjustment signal; and the pixel circuit has a frame refresh frequency F1, and a data refresh frequency including a first data refresh frequency F11 and a second data refresh frequency F22, that one second data refresh period includes N11 bias adjustment stages, a bias adjustment signal V11 is inputted in a first bias adjustment stage, and a bias adjustment signal Vi is inputted in an i-th bias adjustment stage, where V11?Vi.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: December 27, 2022
    Assignee: Xiamen Tianma Display Technology Co., Ltd.
    Inventor: Yuheng Zhang
  • Patent number: 11507498
    Abstract: An apparatus including a memory structure comprising non-volatile memory cells and a microcontroller. The microcontroller is configured to output Core Timing Control (CTC) signals that are used to control voltages applied in the memory structure. In one aspect, information from which the CTC signals may be generated is pre-computed and stored. This pre-computation may be performed in a power on phase of the memory system. When a request to perform a memory operation is received, the stored information may be accessed and used to generate the CTC signals to control the memory operation. Thus, considerable time and/or power is saved. Note that this time savings occurs each time the memory operation is performed. Also, power is saved due to not having to repeatedly perform the computation.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: November 22, 2022
    Assignee: SanDisk Technologies LLC
    Inventors: Yuheng Zhang, Yan Li
  • Publication number: 20220335872
    Abstract: Display panel, integrated chip and display apparatus are provided. Display panel includes pixel circuit including drive module, bias adjustment module and initialization module, and light emitting element. Drive module configured to provide drive current to light emitting element, and includes drive transistor; bias adjustment module configured to provide bias adjustment signal to first pole or second pole of drive transistor; initialization module configured to provide initialization signal to light emitting element. Operation modes of display panel include first mode and second mode, and brightness level of display panel in first mode greater than that in second mode. Bias adjustment signal Vs1 in first mode and bias adjustment signal Vs2 in second mode satisfies Vs1?Vs2; and/or, initialization signal Vi1 in first mode and initialization signal Vi2 in second mode satisfies Vi1?Vi2. With embodiments of present disclosure, display uniformity of display panel can be improved.
    Type: Application
    Filed: July 4, 2022
    Publication date: October 20, 2022
    Applicant: Hubei Yangtze Industrial Innovation Center Of Advanced Display Co., Ltd.
    Inventors: Yuheng ZHANG, Jiemiao PAN
  • Patent number: 11468814
    Abstract: A display panel and a display device are provided. The display panel includes a pixel circuit including a driving module and a compensation module. The driving module includes a driving transistor, and the compensation module is connected between a gate and a drain of the driving transistor. A time period of one frame includes a non-light-emitting stage including a bias adjustment stage. In the bias adjustment stage, the compensation module is turned off, and one of a source and the drain of the driving transistor receives a bias adjustment signal for adjusting a bias state of the driving transistor. Time lengths of the non-light-emitting stages in the first mode and the second mode are L1 and L2, respectively, where L1>L2. Time lengths of the bias adjustment stages in the first frame in the first mode and the second frame in the second mode are W1 and W2, where W1/L1<W2/L2.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: October 11, 2022
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventor: Yuheng Zhang
  • Publication number: 20220013507
    Abstract: Provided are a display panel and a display device. The display panel includes a substrate, a driving circuit layer disposed on the substrate and including driving circuits, LED chips located on side of the drive circuit layer facing away from the substrate and each electrically connected to a corresponding drive circuit, the drive circuit includes at least one first thin film transistor with a source and a drain located at first metal layer of the drive circuit layer and electrically connected to first electrode of corresponding LED chip, and at least part of edges of the display panel is provided with thermally conductive adhesive. The substrate is also provided with one or more layers of thermally conductive metal, at least one layer of thermally conductive metal extends to the edges of the display panel and is in contact with the thermally conductive adhesive.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 13, 2022
    Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventor: Yuheng ZHANG
  • Patent number: 11222581
    Abstract: A pixel circuit, a method for driving a pixel circuit and a display panel are provided. An exemplary pixel circuit includes a data writing module and a driving transistor, a voltage of a first terminal of the driving transistor being greater than a voltage of a second terminal; a light-emitting control module and a light-emitting device, the light-emitting device being configured to emit light in response to the driving current generated by the driving transistor; a first initialization module and a second initialization module; and a reset module configured to cause the voltage of the second terminal of the driving transistor to be greater than or equal to the voltage of the first terminal of the driving transistor in response to a current-stage reset signal, an enable signal of the current-stage reset signal appearing after an enable signal of the current-stage light-emitting signal.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: January 11, 2022
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Yong Yuan, Yuheng Zhang, Wanming Huang, Jieliang Li
  • Publication number: 20210279168
    Abstract: An apparatus including a memory structure comprising non-volatile memory cells and a microcontroller. The microcontroller is configured to output Core Timing Control (CTC) signals that are used to control voltages applied in the memory structure. In one aspect, information from which the CTC signals may be generated is pre-computed and stored. This pre-computation may be performed in a power on phase of the memory system. When a request to perform a memory operation is received, the stored information may be accessed and used to generate the CTC signals to control the memory operation. Thus, considerable time and/or power is saved. Note that this time savings occurs each time the memory operation is performed. Also, power is saved due to not having to repeatedly perform the computation.
    Type: Application
    Filed: March 5, 2020
    Publication date: September 9, 2021
    Applicant: SanDisk Technologies LLC
    Inventors: Yuheng Zhang, Yan Li
  • Publication number: 20210279169
    Abstract: An apparatus including a memory structure comprising non-volatile memory cells and a microcontroller. The microcontroller is configured to output Core Timing Control (CTC) signals that are used to control voltages applied in the memory structure. In one aspect, information from which the CTC signals may be generated is pre-computed and stored. This pre-computation may be performed in a power on phase of the memory system. When a request to perform a memory operation is received, the stored information may be accessed and used to generate the CTC signals to control the memory operation. Thus, considerable time and/or power is saved. Note that this time savings occurs each time the memory operation is performed. Also, power is saved due to not having to repeatedly perform the computation.
    Type: Application
    Filed: June 19, 2020
    Publication date: September 9, 2021
    Applicant: SanDisk Technologies LLC
    Inventors: Yuheng Zhang, Yan Li
  • Patent number: 11093091
    Abstract: A display panel is provided. The display panel includes a display area and a border area. The display area includes multiple display units. The border area includes a drive circuit and at least one pressure detection element. A drive signal is provided by the drive circuit to the display units. The pressure detection element and the drive circuit are arranged in different layers. The pressure detection element is used to detect a pressure signal in the display panel.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: August 17, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Jieliang Li, Yuheng Zhang, Feng Lu