Patents by Inventor Xiaohu Li

Xiaohu Li 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: 12575285
    Abstract: A display substrate and a display device. The display substrate comprises a base substrate and at least two first electrodes provided on one side of the base substrate and spaced apart; a pixel film layer is provided on the sides of the first electrodes away from the base substrate; a spacing area is formed between the adjacent first electrodes; an isolation recess is formed on the side of the spacing area away from the base substrate; the isolation recess electrically cuts off the pixel film layer on the adjacent first electrodes.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: March 10, 2026
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xiaoyun Liu, Liangliang Kang, Xiaohu Li, Juan Zhang, Qingyu Huang, Huajie Yan, Zhiqiang Jiao, Jiaqi Wei
  • Patent number: 12543438
    Abstract: The present disclosure relates to a display device, a display panel and a manufacturing method thereof. The display panel includes a driving backplane and a light emitting device layer, and the driving backplane includes multiple pixel driving circuits, the light emitting device layer includes multiple light emitting units distributed in an array, the light emitting unit includes multiple light emitting devices stacked in a direction away from the driving backplane, and light emitting devices other than a light emitting device closest to the driving backplane in a direction perpendicular to the driving backplane are transparent devices; and in the same light emitting unit, at least part of the light emitting devices are coupled to the pixel driving circuits for emitting light under driving of the pixel driving circuits, and at least two light emitting devices in the same light emitting unit have different light emitting materials.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: February 3, 2026
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Huajie Yan, Xiaohu Li, Zhiqiang Jiao, Lu Wang
  • Patent number: 12543445
    Abstract: A display substrate is provided, the display substrate has a plurality of sub-pixels, and includes a driving circuit substrate, a plurality of first electrodes, a pixel definition layer and a light-emitting material layer. The driving circuit substrate includes a plurality of pixel driving circuits and a protective insulating layer, the protective insulating layer includes a plurality of first vias, and the plurality of first electrodes are respectively electrically connected to output terminals of the plurality of pixel driving circuits through the first vias. The pixel definition layer includes a plurality of sub-pixel openings and at least one partition structure. The light-emitting material layer is at least in the plurality of sub-pixel openings, the pixel definition layer includes a first pixel definition sub-layer and a second pixel definition sub-layer, and a width of the second pixel definition sub-layer is greater than a width of the first pixel defining sub-layer.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: February 3, 2026
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Lei Zhao, Zhiqiang Jiao, Xiaohu Li, Xiaoyun Liu, Shuilang Dong, Guangcai Yuan, Lilei Zhang
  • Publication number: 20260033133
    Abstract: A light-emitting transistor is disposed on a base substrate and includes a gate layer, a first insulating layer, a source layer, a barrier layer, a light-emitting functional layer, and a drain layer arranged in sequence along a direction away from the base substrate. The source layer includes a first wire grid structure, the first wire grid structure includes a plurality of first conductive strips arranged at intervals, and the plurality of first conductive strips are parallel to each other. The barrier layer covers surfaces of the plurality of first conductive strips, and a surface of the barrier layer away from the base substrate is parallel to the base substrate.
    Type: Application
    Filed: February 28, 2024
    Publication date: January 29, 2026
    Inventors: Xiaohu Li, Jinglu Bai, Zhiqiang Jiao, Liangliang Kang, Guangcai Yuan
  • Patent number: 12538643
    Abstract: A light emitting device includes: a first electrode layer, a first dielectric layer, a first luminescent layer, a second luminescent layer, a second dielectric layer and a second electrode layer that are arranged sequentially in stack; a source electrode and a drain electrode, wherein the source electrode and the drain electrode are arranged in a same layer, and are both located between the first luminescent layer and the second luminescent layer; and an insulating layer provided in the same layer as the source electrode and the drain electrode, and located between the source electrode and the drain electrode. By controlling the two electrode layers separately, the two luminescent layers may separately and independently emit light. By providing different materials of the luminescent layers, the effect of light emission of multiple mixed colors or the effect of an increased light intensity may be realized.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: January 27, 2026
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Peng Wang, Xiaohu Li, Juan Zhang, Zhiqiang Jiao
  • Publication number: 20260026197
    Abstract: A display substrate and a display screen are provided. A trapezoidal reflection structure is arranged on a TFE layer, a low-refractive-index reflection layer is arranged on the trapezoidal reflection structure, a high-refractive-index reflection layer is arranged on the low-refractive-index reflection layer, and a cover plate is attached. In a case that light is reflected by the high-refractive-index reflection layer toward the low-refractive-index reflection layer, due to a difference between refractive indices, a part of the light is totally reflected after an incident angle is greater than a critical angle. The low-refractive-index reflection layer serves as a condensing lens to change large-angle transverse light into active forward light, so as to improve the light transmittance of the display substrate, and increase the brightness at a front viewing angle.
    Type: Application
    Filed: May 17, 2024
    Publication date: January 22, 2026
    Applicants: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenqi Liu, Yutong Yan, Xiaohu Li, Zhongyuan Sun, Mengna Sun, Zhiqiang Jiao, Hongli Wang, Xu Liu, Tong Wu
  • Patent number: 12532620
    Abstract: A display panel includes a plurality of driving base plates stacked, each of the driving base plates includes a substrate and a driving unit located on the substrate, orientations of the driving base plates are the same; a plurality of pixel units arranged in an array, each of the pixel units includes a plurality of sub-pixels, and orthographic projections on the substrate of light emitting regions of the sub-pixels in the same pixel unit do not overlap with each other; and each of the driving base plates is provided with at least one sub-pixel on one side away from the substrate, and the driving unit on each of the driving base plates is electrically connected to the at least one sub-pixel; and a quantity of the driving base plates is less than or equal to a quantity of the sub-pixels in one of the pixel units.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: January 20, 2026
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaohu Li, Weijie Wang, Liangliang Kang, Zhiqiang Jiao, Lu Wang
  • Patent number: 12514095
    Abstract: A display substrate includes a first display region disposed on a substrate, wherein the first display region includes a plurality of light-emitting regions arranged in an array and a plurality of light-transmitting regions arranged in an array. The plurality of light-emitting regions and the plurality of light-transmitting regions are arranged alternately. Each of the light-emitting regions includes: a conductive layer disposed in the light-emitting region; and a cathode block disposed on the conductive layer. The first display region further includes connection portions that are disposed in the light-transmitting regions and located in a same layer and made of a same material as the conductive layers, and respectively configured to electrically connect cathode blocks of two adjacent light-emitting regions. Further provided is a manufacturing method of a display substrate.
    Type: Grant
    Filed: February 7, 2021
    Date of Patent: December 30, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Chengyuan Luo, Xiaolei Zhang, Xiaohu Li
  • Publication number: 20250393345
    Abstract: Provided is a light-emitting chip. The light-emitting unit includes a plurality of light-emitting parts; the light-emitting unit further includes a second semiconductor layer, wherein the second semiconductor layer is disposed on light-emitting sides of the plurality of light-emitting parts; wherein a surface of the second semiconductor layer facing away from the color converting unit is a second surface, and the second semiconductor layer includes a first groove that opens in the second surface; and the light-emitting chip further includes a filling part disposed in the first groove, wherein the filling part is made of an opaque material.
    Type: Application
    Filed: May 20, 2024
    Publication date: December 25, 2025
    Applicants: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xiang LI, Mingxing WANG, Qian WANG, Che AN, Qian JIN, Xiaohu LI, Yu TIAN, Xue DONG, Yingtao WANG, Xinxing WANG
  • Patent number: 12484388
    Abstract: Proposed are a display substrate, a manufacturing method thereof and a display device. The display substrate includes a base and multiple pixel units disposed on the base, wherein, at least one pixel unit of the multiple pixel units includes multiple sub-pixels with different colors, and at least one sub-pixel of the multiple sub-pixels includes multiple sub-pixel components with the same color; anodes of the sub-pixel components are electrically connected with driving circuits, and the driving circuits are independent of each other, and in a plane perpendicular to the display substrate, a side of the anode of the sub-pixel component away from the base at least includes a partial surface, and a normal of the partial surface is not perpendicular to the base.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: November 25, 2025
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Huajie Yan, Xiaohu Li, Renquan Gu, Qingyu Huang
  • Publication number: 20250359462
    Abstract: Provided is a display panel, which relates to the field of display technology. The display panel includes: a base substrate, having a display region and a peripheral region around the display region; a pixel circuit layer, disposed on a side of the base substrate and in the display region; a pixel defining layer, disposed on a side of the pixel circuit layer away from the base substrate, wherein the pixel defining layer is provided with a plurality of pixel openings; a plurality of electroluminescent layers, disposed in the plurality of pixel openings; a first electrode layer, disposed on a side of the plurality of electroluminescent layers away from the base substrate; and an auxiliary electrode structure and a light-transmissive electrode patterning structure, wherein the auxiliary electrode structure and the electrode patterning structure are disposed on a side of the first electrode layer away from the base substrate.
    Type: Application
    Filed: February 7, 2024
    Publication date: November 20, 2025
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Xiaohu LI, Yuxin ZHANG, Zhiqiang JIAO, Liangliang KANG, Guangcai YUAN
  • Patent number: 12426444
    Abstract: The present disclosure relates to a display device, a display panel and a driving circuit, and a driving method. The display panel includes a driving backplane and a light emitting device layer, and the driving backplane includes multiple pixel driving circuits, the light emitting device layer includes multiple light emitting units distributed in an array, the light emitting unit includes multiple light emitting devices stacked in a direction away from the driving backplane, and light emitting devices other than a light emitting device closest to the driving backplane in a direction perpendicular to the driving backplane are transparent devices; and in the same light emitting unit, at least part of the light emitting devices are coupled to the pixel driving circuits for emitting light under driving of the pixel driving circuits, and at least two light emitting devices in the same light emitting unit have different light emitting materials.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: September 23, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Huajie Yan, Haibin Zhu, Xiaohu Li, Zhiqiang Jiao
  • Publication number: 20250248285
    Abstract: A display substrate is provided, including: a base substrate; pixel units arranged in an array in a display region, each pixel unit includes sub-pixels each including a sub-pixel opening defined by a pixel defining layer on the base substrate; sub-pixel lenses arranged in an array on a side of the pixel defining layer away from the base substrate. Each pixel unit includes at least two sub-pixels having a same color, an orthographic projection of the sub-pixel opening on the base substrate is parallelogram, and is located within that of the corresponding sub-pixel lens on the base substrate which is circle. Adjacent side edges of two adjacent sub-pixel openings are arranged parallel to each other and spaced apart by a first distance D1, and closest points between adjacent sub-pixel lenses are spaced apart by a second distance D2 less than the first distance D1.
    Type: Application
    Filed: July 27, 2023
    Publication date: July 31, 2025
    Inventors: Tianhao Lu, Xiaohu Li, Qian Jin, Xu Liu, Hongli Wang, Tong Wu
  • Patent number: 12341347
    Abstract: An electrical system includes a first conduction terminal, a second conduction terminal, N power units and N supporting devices. The N power units are electrically connected between the first conduction terminal and the second conduction terminal in series, and N is an integer greater than or equal to 2. Each of the N supporting devices includes a conductive part and a support part. Each of the N power units is disposed on the corresponding conductive part. The conductive part is electrically connected with a power terminal of one of the N power units or electrically connected with a reference potential of the electrical system. The support part is connected between the corresponding conductive part and a ground potential.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: June 24, 2025
    Assignee: Delta Electronics (Shanghai) Co., Ltd.
    Inventors: Teng Liu, Jianxing Dong, Xiaohu Li, Ming Wang
  • Publication number: 20250199196
    Abstract: A sediment dating correction method and system are provided, relating to the technical field of sediment dating. By utilizing Isotope characteristics of 210Pb, a sediment layer before 210Pb reaches equilibrium is taken as a modern substance (namely, modern sediment horizon), AMS14C dating data of the modern sediment horizon and AMS14C dating data of sediment to be dated obtained by an AMS14C dating method are interpolated to obtain a correction value of an old carbon, so as to correct all 14C dating data to obtain a chronological framework of the sediment to be dated.
    Type: Application
    Filed: July 10, 2024
    Publication date: June 19, 2025
    Applicant: Second Institute of Oceanography, MNR
    Inventors: Xibin HAN, Yi Zhang, Yizhuo Wang, Pengyun MA, Rui Han, Xiaohu Li, Xiaowen Luo, Ziyin Wu, Wendong Wu, Chen Sun
  • Patent number: 12324315
    Abstract: Provided is a display panel including a plurality of sub-pixels and includes a substrate and a pixel defining layer, a light emitting device and a color film layer disposed on the substrate. The pixel defining includes M layers and M being a positive integer equal to or greater than 2, an m-th layer of pixel defining layer is covered on a surface of an (m?1)-th layer of pixel defining layer, and a refractive index nm?1 of the (m?1)-th layer of pixel defining layer is greater than a refractive index nm of the m-th layer of pixel defining layer, and wherein 2?m?M.
    Type: Grant
    Filed: May 8, 2021
    Date of Patent: June 3, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qingyu Huang, Zhiqiang Jiao, Huajie Yan, Fudong Chen, Xiaohu Li
  • Publication number: 20250143033
    Abstract: A chip structure and a method for manufacturing the same, and a display apparatus. The chip structure includes a chip wafer unit and a color conversion unit disposed on a light exit side of the chip wafer unit. The color conversion unit includes a base substrate; the base substrate includes a body portion and an edge portion surrounding the body portion; the edge portion includes original layers and modified layers alternately arranged along a first direction; and in the edge portion, layers located on outermost two sides in the first direction are both original layers, the first direction being perpendicular to a surface of the base substrate away from the chip wafer unit. A light reflectivity of the original layers and a light reflectivity of the modified layers are different.
    Type: Application
    Filed: March 29, 2023
    Publication date: May 1, 2025
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaohu LI, Yichi ZHANG, Wei LI, Zhiqiang JIAO, Lu WANG
  • Publication number: 20250143130
    Abstract: A display substrate and a display device. The display substrate comprises a base substrate and at least two first electrodes provided on one side of the base substrate and spaced apart; a pixel film layer is provided on the sides of the first electrodes away from the base substrate; a interval region is formed between the adjacent first electrodes; an isolation groove is formed on the side of the interval region away from the base substrate; the isolation groove electrically cuts off the pixel film layer on the adjacent first electrodes.
    Type: Application
    Filed: January 4, 2025
    Publication date: May 1, 2025
    Inventors: Xiaoyun LIU, Liangliang KANG, Xiaohu LI, Juan ZHANG, Qingyu HUANG, Huajie YAN, Zhiqiang JIAO, Jiaqi WEI
  • Patent number: 12289960
    Abstract: A display panel comprises a driving substrate (1), a light-emitting layer (2) and a light guide layer (3); the light-emitting layer (2) is arranged on one side of the driving substrate (1) and comprises a plurality of front light-emitting units (21) and a plurality of rear light-emitting units (22), each of the rear light-emitting units (22) comprising a light source part (221) and a light extracting part (222), and the front light-emitting units (21) and the light source parts (221) being configured for emitting light towards a side away from the driving substrate (1); and the light guide layer (3) comprises a plurality of light guide parts (31), each light guide part (31) being configured to guide light emitted by the light source part (221) of a corresponding rear light-emitting unit (22) to the light extracting part (222).
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: April 29, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Huajie Yan, Zhiqiang Jiao, Lu Wang, Xiaohu Li
  • Publication number: 20250072201
    Abstract: A light emitting device, a display substrate and a display device, relate to the technical field of displaying. The light emitting device including: a plurality of luminescent layers, wherein each of the plurality of luminescent layers includes at least one subject sublayer and at least one object sublayer, and the at least one subject sublayer and the at least one object sublayer are disposed alternately; wherein thicknesses of at least a part of subject sublayers are greater than or equal to a thickness of the object sublayer. The concentration quenching phenomenon of the luminescent layer in the light emitting device is improved, the luminous efficiency is improved, and the service life of the device is extended.
    Type: Application
    Filed: November 24, 2022
    Publication date: February 27, 2025
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Xiaoyun Liu, Liangliang Kang, Xiaohu Li