Patents by Inventor Ke Dai

Ke Dai 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: 20220382115
    Abstract: An Embodiment of the present disclosure provide a display substrate, including a base substrate, and a plurality of first scanning lines, a plurality of second scanning lines, a plurality of data lines, a plurality of common electrodes and a plurality of pixel electrodes on the base substrate. The second scanning lines are parallel to the data lines, and the second scanning lines, the common electrodes and the pixel electrodes are in different layers. The common electrodes are located on a side of the second scanning lines and the data lines away from the base substrate, and on a side of the pixel electrodes proximal to the base substrate. An orthographic projection of one of the data line and the second scanning line on the base substrate is located in a spacer region between adjacent pixel electrodes.
    Type: Application
    Filed: July 7, 2021
    Publication date: December 1, 2022
    Inventors: Yuntian ZHANG, Maoxiu ZHOU, Haipeng YANG, Ke DAI, Mengmeng LI, Yanping LIAO, Lei GUO
  • Patent number: 11506941
    Abstract: The present disclosure relates to a display panel. The display panel may include a first substrate, a second substrate opposite the first substrate, and a frame supporting structure between the first substrate and the second substrate in a frame area of the display panel. The frame area of the display panel may surround a display area of the display panel. The frame supporting structure may include a first frame supporting portion on at least one part of a circumference of the display area, the first frame supporting portion comprises an elastic material, and an elastic recovery rate of the elastic material is above about 80%.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: November 22, 2022
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Lin Zhang, Hongliang Wang, Ke Dai
  • Patent number: 11497096
    Abstract: A source driver includes at least one data input terminal, a plurality of data output terminals, at least two control terminals and a plurality of source driving circuits. Each source driving circuit is connected to a data input terminal of the at least one data input terminal, a data output terminal of the plurality of data output terminals and the at least two control terminals. The source driving circuit is configured such that: the source driving circuit converts a format of a data signal from the data input terminal; and in response to one of different control signals that is received by all the at least two control terminals, the source driving circuit has a corresponding different output impedance, and transmits the converted data signal to the data output terminal.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: November 8, 2022
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Jianwei Sun, Liugang Zhou, Ke Dai, Yizhan Han, Yulong Xiong, Tao Li, Xiaofeng Yin, Maoyang Zhu, Pengjun Fang
  • Patent number: 11487151
    Abstract: According to a liquid crystal display panel and a display device in the present disclosure, since at least one of a first polarizer and a second polarizer has a light scattering structure, polarized light of corresponding colors transmitted by sub-pixel units with different colors in a liquid crystal display structure can be uniformly diffused by the light scattering structure. That is to say, the light scattering structure plays a role for uniformly mixing the polarized light of different colors. Therefore, the rainbow pattern phenomenon is effectively improved or even eliminated, and the display quality is improved.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: November 1, 2022
    Assignees: Hefei Boe Display Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Lin Zhang, Hongliang Wang, Ke Dai, Lei Guo, Yanping Liao
  • Patent number: 11487175
    Abstract: The present disclosure provides an array substrate, a dimming liquid crystal panel and a display panel. The array substrate includes: a first transparent electrode layer with a plurality of slit structures, wherein the first transparent electrode layer includes a plurality of domains with an equal area, the plurality of domains include at least two types of domains, the at least two types of domains are arranged in a mosaic shape; a plurality of gate lines extending along a row direction and a plurality of data lines extending along a column direction, the plurality of gate lines and the plurality of data lines crossing to define a plurality of dimming regions arranged in an array.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: November 1, 2022
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Yue Du, Yuntian Zhang, Liangliang Jiang, Lei Guo, Ke Dai, Jiaqing Liu
  • Publication number: 20220342263
    Abstract: The present disclosure provides a liquid crystal display panel and a liquid crystal display device. The liquid crystal display panel includes a plurality of sub-pixels defined by a light shielding matrix, and an array substrate and an opposing substrate arranged to be spaced apart from each other. The opposing substrate includes a first substrate and a plurality of spacers, wherein the spacers are on a side of the first substrate close to the array substrate and being within a light shielding area of the light shielding matrix. The array substrate includes a second substrate and a plurality of protrusion structures, wherein the protrusion structures are on a side of the second substrate close to the opposing substrate, and being within the light shielding area of the light shielding matrix.
    Type: Application
    Filed: February 26, 2020
    Publication date: October 27, 2022
    Inventors: Liangliang Jiang, Heng Li, Lei Guo, Ke Dai, Yanping Liao, Seungmin Lee
  • Patent number: 11476771
    Abstract: A system and a method for power conversion. The system includes a rectifier; an inverter; a DC-link capacitor coupled between the rectifier and the inverter; and a controller. The controller is configured to obtain a current value at an output of the inverter and a voltage value across the DC-link capacitor, determine an average component and a fluctuating component of an output voltage of the inverter based on the obtained current value and the voltage value, and determine a current reference for controlling the rectifier based on the average component and the fluctuating component of the output voltage.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: October 18, 2022
    Assignee: ABB SCHWEIZ AG
    Inventors: Ke Dai, Derong Lin, Chengjing Li, Tian Tan, Tinho Li, Kai Tian
  • Publication number: 20220327988
    Abstract: A display device, a gate drive circuit, a shift register and a control method are disclosed. The shift register includes a first shift register unit and a second shift register unit, the first shift register unit is configured to write a first control signal to the first node, and write a first clock signal to the first signal output terminal under control of a voltage of the first node; the second shift register unit is configured to write a second clock signal to the second signal output terminal under control of the voltage of the first node; during time of a frame, the first clock signal and a first input signal provided by a first signal input terminal are pulse signals, and the second clock signal is a DC signal.
    Type: Application
    Filed: June 27, 2022
    Publication date: October 13, 2022
    Inventors: Zuquan HU, Zhenyu ZHANG, Haipeng YANG, Ke DAI
  • Publication number: 20220326582
    Abstract: The present disclosure provides an array substrate, a dimming liquid crystal panel and a display panel. The array substrate includes: a first transparent electrode layer with a plurality of slit structures, wherein the first transparent electrode layer comprises a plurality of domains, the plurality of domains comprise at least two types of domains, each of the plurality of domains is adjacent to different types of domains along both a row direction and a column direction; and a plurality of gate lines extending along the row direction and a plurality of data lines extending along the column direction, the plurality of gate lines and the plurality of data lines crossing to define a plurality of dimming regions arranged in an array.
    Type: Application
    Filed: November 28, 2019
    Publication date: October 13, 2022
    Applicants: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yue DU, Wei GUO, Ke DAI, Lei GUO, Liangliang JIANG, Jiaqing LIU, Yuanhui GUO
  • Publication number: 20220319448
    Abstract: A method for improving a halo is applied to a display panel. The display panel includes a dimming sub-panel and a display sub-panel that are superposed. The dimming sub-panel includes a plurality of first pixels, the display sub-panel includes a plurality of second pixels, and each first pixel corresponds to at least two second pixels. The method for improving the halo includes: as for the first pixel: acquiring a second brightness datum of each of the at least two second pixels corresponding to the first pixel; calculating a target brightness datum of the first pixel according to second brightness data of the at least two second pixels; determining a first gray-scale datum of the first pixel according to the target brightness datum.
    Type: Application
    Filed: October 15, 2019
    Publication date: October 6, 2022
    Inventors: Ruilian LI, Xueqin WEI, Lixin ZHU, Lei SHI, Chunyang NIE, Ke DAI
  • Publication number: 20220317528
    Abstract: An array substrate includes a base substrate, pixel electrodes and common electrodes, first scan lines, second scan lines and data lines. The pixel electrode has first electrode strips disposed at intervals in a row direction. The common electrodes and the pixel electrodes are disposed on the same layer, and the common electrodes have second electrode strips disposed at intervals. The second electrode strips and the first electrode strips are alternatively arranged. The first scan line is located between two adjacent rows of pixel electrodes. The second scan line is located between two adjacent columns of pixel electrodes and is electrically connected to the first scan line, and the second scan line has a scan signal input terminal. The data line has a data signal input terminal. An orthographic projection of the data line on the base substrate intersects with a central region of the pixel electrode on the base substrate.
    Type: Application
    Filed: September 7, 2020
    Publication date: October 6, 2022
    Inventors: Maoxiu ZHOU, Yanping LIAO, Yingmeng MIAO, Yuntian ZHANG, Lei GUO, Ke DAI, Haipeng YANG, Zhihua SUN, Xibin SHAO, Zhangtao WANG
  • Publication number: 20220308412
    Abstract: There is provided a display substrate, including gate lines and data lines, which define pixel units, each pixel unit includes a pixel electrode, at least some pixel units are provided with a conductive bridge line in a same layer as the pixel electrode; in the pixel unit with the conductive bridge line, a first hollow structure is on a first side of a first or second end part of the pixel electrode, an end of the conductive bridge line is in the first hollow structure, a second hollow structure is on a second side of the first end part, an absolute value of a difference between parasitic capacitances respectively formed between the pixel electrode and the data lines on two sides of the pixel electrode and closest thereto is less than or equal to a preset capacitance difference value. A display panel and a display device are further provided.
    Type: Application
    Filed: September 17, 2020
    Publication date: September 29, 2022
    Inventors: Chunxu ZHANG, Ke DAI, Haipeng YANG, Yuntian ZHANG, Xiaoting JIANG, Min CHENG
  • Publication number: 20220308397
    Abstract: A display device and a manufacturing method thereof, an electronic device, and a light control panel are provided. The display device includes a light control panel and a display liquid crystal panel. The display liquid crystal panel is on a light-emitting side of the light control panel; the light control panel includes a light control region, and the light control region is configured to provide adjusted backlight to the display liquid crystal panel; the display liquid crystal panel includes a display region, and the display region is configured to receive the adjusted backlight to perform display; and a distance between two opposite edges of the light control region in at least one direction is greater than a distance between two opposite edges of the display region in the at least one direction.
    Type: Application
    Filed: October 14, 2020
    Publication date: September 29, 2022
    Inventors: Yuntian ZHANG, Zhou RUI, Peng JIANG, Haipeng YANG, Chunxu ZHANG, Zhonghou WU, Li TIAN, Ke DAI
  • Patent number: 11455923
    Abstract: The present disclosure generally relates to display technologies. An array substrate includes a plurality of repeating units arranged in a first direction, each repeating unit including a plurality of connection areas and a plurality of shared testing areas arranged in an alternating manner in a row along the first direction. Each of the plurality of shared testing areas is between two adjacent connection areas and coupled to each of the two adjacent connection areas, and each of the plurality of shared testing areas includes a plurality of testing pads, a first portion of the plurality of testing pads being coupled to one of the two adjacent connection areas, a second portion of the plurality of testing pads being coupled to the other one of the two adjacent connection areas.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: September 27, 2022
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Chunxu Zhang, Ke Dai, Zhonghou Wu, Peng Jiang, Yuntian Zhang, Yafei Deng
  • Publication number: 20220293539
    Abstract: Provided is an array substrate. The array substrate includes at least one pad group disposed in a peripheral region of a base substrate, wherein the at least one pad group includes a sector pad group in which the pads are distributed in a sector shape. Therefore, the bonding yield between the array substrate and the circuit board is increased.
    Type: Application
    Filed: October 21, 2021
    Publication date: September 15, 2022
    Inventors: Chunxu ZHANG, Xiaoting JIANG, Min CHENG, Maoxiu ZHOU, Haipeng YANG, Ke DAI
  • Publication number: 20220291541
    Abstract: Disclose are a display substrate, a liquid crystal display panel and a display device. The display substrate is provided with a display region. The display substrate includes: a base substrate, and a black matrix arranged on a side of the base substrate. The black matrix includes: a first region corresponding to the display region, and a plurality of frame regions arranged on a periphery of the first region. At least one rectilinear first slit and at least one rectilinear second slit intersecting with the at least one rectilinear first slit are arranged in the at least one of the frame regions, and an extending direction of the at least one rectilinear first slit is same as an extending direction of the at least one of the frame regions.
    Type: Application
    Filed: November 18, 2021
    Publication date: September 15, 2022
    Inventors: Min CHENG, Ke DAI, Haipeng YANG, Maoxiu ZHOU, Xiaoting JIANG, Chunxu ZHANG
  • Patent number: 11443682
    Abstract: A display device, a gate drive circuit, a shift register and a control method are disclosed. A first shift register unit of the shift register is configured to write a first control signal to a first node under control of a first input signal, write a first clock signal to a first signal output terminal; a second shift register unit of the shift register is configured to write a second control signal to the first node under control of a second input signal, write a second clock signal to a second signal output terminal; during the first frame, the first clock signal and the first input signal are pulse signals, the second clock signal and the second input signal are DC signals; during the second frame, the first clock signal and the first input signal are DC signals, the second clock signal and the second input signal are pulse signals.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: September 13, 2022
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zuquan Hu, Zhenyu Zhang, Haipeng Yang, Ke Dai
  • Patent number: 11443989
    Abstract: An array substrate having a display area, a peripheral area, and a bonding area inside the peripheral area is provided. The array substrate includes a bonding pad in the bonding area, the bonding pad configured to be connected to a peripheral circuit through a bonding connector, a test signal line including a first portion and a second portion. The first portion is in the peripheral area and substantially surrounds the display area. The first portion is electrically connected to the bonding pad. The first portion is completely inside the array substrate and has no exposed terminal. The second portion is in the bonding area. A first terminal of the second portion is electrically connected to the bonding pad. A second terminal of the second portion has an end along an edge of the array substrate in the bonding area.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: September 13, 2022
    Assignees: Hefei BOE Display Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Ke Dai, Peng Jiang, Yanping Liao, Wenchao Wang
  • Patent number: 11434543
    Abstract: A method for extracting and enriching gold with a selenide includes: mixing an isocyanate and a selenium-containing compound of a formula of HO—R—Se—R—OH in a solvent to obtain a mixture system, where R is selected from linear or branched C2 to C11 alkylene groups; adding a tin-based catalyst into the mixture system to activate a reaction, drying the mixture system after the reaction, and obtaining a powdery selenium-containing polymer by grinding; immersing the selenium-containing polymer in an aqueous solution containing gold ions to allow gold to be extracted from the aqueous solution; and removing the selenium-containing polymer attached to a surface of extracted gold, thereby obtaining an extracted and enriched gold.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: September 6, 2022
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Huaping Xu, Yiheng Dai, Wentian Xiang, Ke Zheng
  • Publication number: 20220271107
    Abstract: An array substrate, a manufacturing method thereof and a display panel are provided. The array substrate includes sub-pixel units, and each sub-pixel unit includes a light emitting region and a non-light emitting region; each sub-pixel unit includes a light emitting element, the light emitting element includes a light emitting layer and a first electrode, and at least a part of the first electrode is in the light emitting region. A plurality of first wires are configured to supply a power signal to the light emitting element and include a first sub-wire; the first sub-wire includes a plurality of portions, adjacent two of the plurality of portions are spaced apart from each other by an opening in the light emitting region; at least a part of an orthographic projection of the opening on the array substrate does not overlap with an orthographic projection of the first electrode on the array substrate.
    Type: Application
    Filed: May 12, 2022
    Publication date: August 25, 2022
    Inventors: Tingliang LIU, Zhen ZHANG, Ke DAI