Patents Assigned to BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
  • Patent number: 11887994
    Abstract: The present disclosure provides a display substrate and a display device. A display substrate provided by an embodiment of the present disclosure includes: a display region and a peripheral region surrounding the display region; the display region includes: a plurality of gate lines, a plurality of data lines, and a plurality of pixel units, and each of the plurality of pixel units includes a driving transistor and a pixel electrode that are connected to each other; the peripheral region includes: signal lines and at least one electrostatic discharge structure for performing electrostatic discharge on the signal lines, and the electrostatic discharge structure includes a comb-shaped sixth electrostatic discharge pattern and a seventh electrostatic discharge pattern.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: January 30, 2024
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pan Li, Xinyin Wu, Yong Qiao
  • Patent number: 11883822
    Abstract: A reaction device for a detection chip and a reaction system are provided. The reaction device includes a chip carrier and an electrical signal control unit. The chip carrier is configured to place and fix the detection chip; and the electrical signal control unit is configured to apply an electrical signal to the detection chip so as to drive a heating electrode of the detection chip.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: January 30, 2024
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zijian Zhao, Mengjun Hou, Yudan Yin
  • Patent number: 11888488
    Abstract: An integrated circuit is provided. The integrated circuit includes: a clock source configured to: generate a clock signal of the integrated circuit; at least two functional circuits; and at least two clock generators corresponding to the functional circuits and configured to: determine initial phases of the corresponding functional circuits, and generate clock signals of the functional circuits based on the clock signal of the integrated circuit and the initial phases, so as to keep the clock signals of all the functional circuits synchronized, wherein the initial phases are determined based on transmission distances, over which the clock signal of the integrated circuit is transmitted from the clock source to the functional circuits, and loads of the functional circuits.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: January 30, 2024
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xiangye Wei, Liming Xiu
  • Patent number: 11887401
    Abstract: The present disclosure provides a display backplane, a method for manufacturing the same and a full-screen fingerprint identification display device. The display backplane includes a substrate; a circuit layer disposed on a surface of the substrate; a light emitting device layer disposed on a surface of the circuit layer away from the substrate; and a plurality of fingerprint identification photodetectors disposed in at least one of the circuit layer and the light emitting device layer.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: January 30, 2024
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xueguang Hao, Hongfei Cheng, Yongda Ma
  • Patent number: 11881631
    Abstract: An antenna includes: a substrate; a first reference electrode on a first surface of the substrate; a radiating element on a second surface of the substrate, feeding directions of a first port and a second port of the radiating element are different; and at least one transmission structure on the second surface of the substrate and connected to at least one of the first port and the second port. The transmission structure includes: a signal electrode, a second reference electrode on at least one side of the signal electrode, and at least one membrane bridge; the signal electrode feeds a microwave signal into the radiating element, is positioned in a space surrounded by the membrane bridge and the substrate, and is insulated from the membrane bridge through an interlayer dielectric layer; orthographic projections of the membrane bridge and the second reference electrode on the substrate are overlapped.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: January 23, 2024
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qianhong Wu, Jingwen Guo, Chunxin Li, Jia Fang, Feng Qu
  • Patent number: 11876861
    Abstract: A data management method based on blockchain, a device, a blockchain network, and a system are provided. The data management method is applied to a plurality of blockchain network nodes, and includes: creating a data subscription contract, where the data subscription contract is configured for subscribing to a data provider; receiving a data acquisition request which includes data identification information of requested data; executing the data subscription contract to subscribe to the data provider for the requested data in the case where the requested data does not exist in the blockchain network; and receiving a transaction request including the requested data from the data provider, and writing the requested data into the blockchain network after passing a verification of the requested data.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: January 16, 2024
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD. CHINA
    Inventor: Junjie Zhao
  • Patent number: 11870011
    Abstract: A light-emitting diode includes a first semiconductor layer, a second semiconductor layer, a light-emitting layer disposed between the first semiconductor layer and the second semiconductor layer, and a barrier layer disposed on at least part of a side face of at least one of the first semiconductor layer and the second semiconductor layer. The barrier layer is configured to form a charge depletion region between the barrier layer and the at least part of the side face.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: January 9, 2024
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Hu Meng
  • Patent number: 11868511
    Abstract: Provided is a digital fingerprint generator. The digital fingerprint generator includes: a control circuit, configured to generate a control word; a first pulse generation circuit, connected to the control circuit, and configured to output a first pulse signal in response to the control word; a second pulse generation circuit, connected to the control circuit, having a same structure as the first pulse generation circuit, and configured to output a second pulse signal in response to the control word; and an output circuit, connected to the first pulse generation circuit and the second pulse generation circuit, and configured to output a digital fingerprint based on the first pulse signal and the second pulse signal according to a predetermined first rule.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: January 9, 2024
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xiangye Wei, Yiming Bai, Liming Xiu
  • Patent number: 11852925
    Abstract: A display panel includes an array substrate, a color filter substrate, a liquid crystal layer and a plurality of spacers located between the array substrate and the color filter substrate. The plurality of spacers include at least one first spacer, at least one second spacer and at least one third spacer. The at least one first spacer is on the array substrate, the at least one second spacer and the at least one third spacer are on the color filter substrate and respectively overlap the at least one first spacer in a direction perpendicular to the display panel. The at least one first spacer, the at least one second spacer and the at least one third spacer have a first height, a second height and a third height respectively along the direction perpendicular to the display panel, and the second height is different from the third height.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: December 26, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Hongfei Cheng
  • Patent number: 11851593
    Abstract: The present disclosure discloses a nanoparticle, a nanoparticle layer patterning method and related application. When the nanoparticle disclosed by the present disclosure is adopted to form a patterned nanoparticle layer on a substrate, a photosensitive material is added in the nanoparticle, then a protective group in a first ligand is dissociated to form an amino under the irradiation of light with a preset wavelength, a second ligand including an amino is formed on a surface of a nanometer particle, and a polarity of the second ligand is different from a polarity of the first ligand; and the amino of the second ligand is cross-linked with an adjacent nanoparticle.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: December 26, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhuo Chen, Tieshi Wang
  • Publication number: 20230409074
    Abstract: A method for generating spread-spectrum synchronous clock signals includes comparing an input signal of a first frequency with a feedback signal of a second frequency in a loop of feedback; generating a first control signal and a second control signal; determining an integer part I of a control word F to track the first frequency; registering n levels for the first control signal and the second control signal to introduce n phase delays for randomly changing a fraction part r (0<r<1) of the control word F to provide a broadened boundary in frequency spectrum; and generating a synthesized periodic signal with the second frequency based on a base time unit ?, the first frequency, and the control word F, the synthesized periodic signal being fed back as the feedback signal in the loop of feedback and outputted with the second frequency being locked within the broadened boundary.
    Type: Application
    Filed: August 31, 2023
    Publication date: December 21, 2023
    Applicants: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xiangye Wei, Liming Xiu
  • Patent number: 11848679
    Abstract: The present application discloses a circuit for generating spread-spectrum synchronous clock signal. The circuit includes a frequency detector comprising a fraction controller configured to compare an input signal of a first frequency with a feedback signal of a second frequency in a loop of feedback to generate a first control signal and a second control signal alternately for determining a control word to track the first frequency and a phase-shift controller configured to register n levels for the first control signal and the second control signal to introduce n phase delays for changing a fraction part of the control word randomly to provide a broadened boundary. The circuit also includes a digitally controlled oscillator configured to generate a synthesized periodic signal based on a base time unit, the first frequency, and the control word, with the second frequency being locked within the broadened boundary of the first frequency.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: December 19, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xiangye Wei, Liming Xiu
  • Patent number: 11822196
    Abstract: An array substrate includes at least one driving electrode region and at least one sensing electrode region which are alternately arranged along a row direction and are disconnected from each other, each driving electrode region and each sensing electrode region include one first common electrode and one second common electrode respectively, at least one driving electrode line continuously passes through the driving electrode region and the sensing electrode region alternately arranged along the row direction. The first common electrode in the driving electrode region is connected to the driving electrode line through at least one first through hole, the second common electrode in the sensing electrode region is disconnected from the driving electrode line.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: November 21, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongfei Cheng, Pan Li
  • Patent number: 11823597
    Abstract: The present disclosure relates to a driving unit, including a first driving sub-circuit, a second driving sub-circuit, and a driving control circuit. The first driving sub-circuit includes first switching elements, configured to output a first signal to the driving unit in response to a control signal from the driving control circuit. The second driving sub-circuit includes one or more second switching elements, and at least one of the second switching elements is configured to output a second signal to the driving unit in response to the control signal. The driving control circuit is configured to output the control signal at a control signal output terminal. Each of the first switching elements and second switching elements includes a transistor. Control signal input terminals of the first switching elements are coupled to the control signal output terminal through a control signal input line having a ring structure.
    Type: Grant
    Filed: January 10, 2023
    Date of Patent: November 21, 2023
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianbo Xian, Chunping Long, Hui Li, Yong Qiao
  • Patent number: 11804065
    Abstract: A display apparatus includes display recognition units and a first processing device. Each of the display recognition units includes one or more sub-pixels and a photosensitive sensing device. The photosensitive sensing device is configured to convert reflected light of light emitted from at least one sub-pixel into a first electrical signal, and convert external light containing information entering from a display side into a second electrical signal. The first processing device is connected to photosensitive sensing devices of the display recognition units, and configured to obtain a texture image according to first electrical signals output by the photosensitive sensing devices, and determine the information contained in the external light according to a second electrical signal output by at least one photosensitive sensing device.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: October 31, 2023
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Wenbo Li
  • Patent number: 11803088
    Abstract: The disclosure relates to the technical field of display, and discloses an electrode structure, a capacitor, a GOA circuit, an array substrate, a display panel and a display device, wherein the electrode structure includes a body and a first opening formed in the body, the first opening has a half-enclosed shape, and a part, enclosed by the first opening, of the body has a tip structure. Each of the capacitor, the GOA circuit, the array substrate, the display panel and the display device includes the above-mentioned electrode structure.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: October 31, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Hongfei Cheng, Jianbo Xian, Hui Li
  • Patent number: 11799578
    Abstract: This is provided a time synchronization method, including: an adjustment stage including N adjustment cycles, N being an integer greater than 1; in each adjustment cycle, generating a physical clock signal at least according to a pre-acquired frequency control word corresponding to the adjustment cycle, and obtaining logical time at least according to the physical clock signal and a physical time deviation; a clock slope of the physical clock signal generated in each adjustment cycle reaches its corresponding target value, and the target values of the clock slopes of the physical clock signals in the N adjustment cycles gradually approach 1; the physical time deviation is: a time difference between the reference time and the physical time corresponding to the physical clock signal in an Nth adjustment cycle at the end of the Nth adjustment cycle. A time synchronization device and a network node device are provided.
    Type: Grant
    Filed: January 19, 2020
    Date of Patent: October 24, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiangye Wei, Liming Xiu, Yiming Bai
  • Publication number: 20230337447
    Abstract: The present disclosure discloses a quantum dot light emitting device, a preparation method therefor and a display apparatus. In the present disclosure, at least one of one or more layers of light emitting functional layers is disposed to include at least two sub-function layers, the sub-function layers comprise ligands, and surface energies of the ligands corresponding to sub-function layers change in gradient along a transmission direction of carriers in the sub-function layers, so that energy levels of the sub-function layers change in gradient. In this way, the energy levels of the sub-function layers can be matched with the energy levels of the adjacent light emitting function layers, so that carrier transmission and balance as well as device efficiency can be improved.
    Type: Application
    Filed: August 6, 2021
    Publication date: October 19, 2023
    Applicants: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Wenhai Mei, Zhigao Lu
  • Patent number: 11789537
    Abstract: The application provides a haptic feedback method and apparatus for virtual keys, and an electronic device, and relates to the field of piezoelectric techniques. A touch display panel is controlled to display at least one virtual key, a touch position detected by the touch display panel is acquired, a target waveform parameter is determined according to a positional relationship between the touch position and each region in a target area corresponding to a target virtual key, and a target drive signal is generated according to the target waveform parameter and is sent to a piezoelectric element.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: October 17, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yuju Chen, Hui Hua, Xiaotong Liu, Yongchun Tao, Jijing Huang
  • Patent number: 11783743
    Abstract: A shifting register, a driving method thereof, a driving circuit and a display device are provided. The shifting register includes a control circuit (10), a first output circuit (20), a second output circuit (30) and a first switching transistor (T1). Shifting output of signals may be realized through interaction of all of the circuits. Moreover, an influence of a leak current on a signal of a second end of the first switching transistor is reduced by setting the first switching transistor (T1) to isolate the second output circuit (30) and a second node (N2).
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: October 10, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Hongfei Cheng