Patents by Inventor Weiwei Li

Weiwei 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: 11374191
    Abstract: Provided are an OLED, display panel and display device. The OLED includes a first electrode, a second electrode, a light emitting layer and at least one blocking layer. The second electrode is arranged opposite to the first electrode. The light emitting layer is arranged between the first electrode and the second electrode. The blocking layer is arranged between the light emitting layer and the second electrode and/or between the light emitting layer and the first electrode. Each blocking layer of the at least one blocking layer comprises at least two blocking materials, electron mobility of at least one blocking material of the at least two blocking materials is lower than a first preset value, electron mobility of at least another blocking material of the at least two blocking materials is higher than a second preset value, and the first preset value is lower than the second preset value.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: June 28, 2022
    Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
    Inventors: Weiwei Li, Lin He, Mengzhen Li, Jingwen Tian, Tiantian Li
  • Publication number: 20220190297
    Abstract: An organic light-emitting diode display device is provided, including an anode layer, a cathode layer, a first light-emitting layer, and a second light-emitting layer disposed between the anode layer and the cathode layer, wherein the first light-emitting layer comprises a first light-emitting part, a second light-emitting part, and a third light-emitting part arranged side-by-side, the second light-emitting layer is configured to emit light of a same color as light emitted from the first light-emitting part, and the organic light-emitting diode display device further includes a charge generating layer disposed between the second light-emitting layer and the first light-emitting part.
    Type: Application
    Filed: June 30, 2020
    Publication date: June 16, 2022
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Shengfang LIU, Weiwei LI
  • Publication number: 20220190253
    Abstract: An organic light emitting diode device and a display panel are provided. The display panel includes the organic light emitting diode device. The organic light emitting diode device includes an emitting material layer. The emitting material layer includes a first common blue-light light-emitting layer, a red-green-blue light emitting layer, and a second common blue-light light-emitting layer.
    Type: Application
    Filed: August 26, 2020
    Publication date: June 16, 2022
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Shengfang LIU, Weiwei LI, Mugyeom KIM
  • Publication number: 20220190254
    Abstract: An organic light-emitting diode device and a display panel are provided. The display panel includes the organic light-emitting diode device. The organic light-emitting diode device includes a light-emitting material layer. The light-emitting material layer includes a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit; wherein the blue light-emitting unit includes a blue light-emitting layer and a charge connecting layer arranged in a stack.
    Type: Application
    Filed: August 26, 2020
    Publication date: June 16, 2022
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Weiwei LI, Shengfang LIU
  • Patent number: 11362294
    Abstract: Provided is an organic light-emitting diode. The organic light-emitting diode includes a first electrode, a second electrode, a light-emitting layer and a hole blocking layer, where the first electrode and the second electrode are oppositely disposed; the light-emitting layer is disposed between the first electrode and the second electrode; the hole blocking layer is disposed between the light-emitting layer and the second electrode; and the hole blocking layer includes at least two hole blocking sub-layers which are stacked, where a lowest unoccupied molecular orbital (LUMO) energy level decreases sequentially in the at least two hole blocking sub-layers.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: June 14, 2022
    Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
    Inventors: Weiwei Li, Chao Chi Peng, Lin He, Jingwen Tian, Tiantian Li, Mengzhen Li
  • Patent number: 11338384
    Abstract: The present disclosure discloses a numerically-controlled plasma special-shaped cutting machine tool including a bracket, a cross beam, a feeding mechanism, a clamping mechanism, a gun head moving mechanism, a material conveying system, a material receiving device, a dedusting system, an electrical control system, and an outer cover. The present disclosure adopts plasma cutting, and the surface quality is obviously improved. Material conveying and cutting are performed by a predetermined program programmed in advance, and the dimensional precision of the machining is well ensured. Workers only need to place a workpiece material on the material conveying system, and the machine tool can perform automatic cutting. The labor intensity of the workers is greatly reduced, the cutting is continuously performed, and the machining efficiency is remarkably improved.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: May 24, 2022
    Assignee: Beijing Jinsuohengdun Protective Equipment Co., Ltd
    Inventors: Guoxi Liu, Tianyu Lan, Weiwei Li
  • Patent number: 11322548
    Abstract: A top emitting OLED device for improving viewing angle characteristics, comprising a substrate, a first electrode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, a second electrode and a light output coupling layer sequentially stacked on the substrate, wherein the second electrode has a light transmittance no less than 25%, and the hole injection layer has a refractive index no less than 1.8.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: May 3, 2022
    Assignees: KUNSHAN NEW FLAT PANEL DISPLAY TECHNOLOGY CENTER CO., LTD., BEIJING VISIONOX TECHNOLOGY CO., LTD.
    Inventors: Weiwei Li, Song Liu, Lin He
  • Patent number: 11295251
    Abstract: Embodiments for implementing intelligent opportunity recommendation and management by a processor. A channel selection model mat be applied to a selected opportunity in view of a plurality of opportunity attributes to identify one or more team candidates of an entity or one or more entity partners ranked by alignment with the selected opportunity and determine a recommended opportunity owner from the one or more team candidates of the entity, the one or more entity partners, or a combination thereof.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: April 5, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Alice J. Chang, Benjamin Dubiel, Xiaoxi Tian, Elizabeth Daly, Inge L. Vejsbjerg, Massimiliano Mattetti, Bei Chen, Oznur Alkan, Adi I. Botea, Sanjmeet Abrol, Weiwei Li, Alan Zwiren
  • Patent number: 11284926
    Abstract: The invention provides the internal fixation system of multi-function adjustable spine posterior screw-rod. It not only includes the vertebral plate, but also includes the adjustable connecting rod, screw and lock nut. Among them, vertebral plate is curved, its internal cambered surface directly faces the spine, and external cambered surface of vertebral plate is equipped with a reinforcing rib. The vertebral plate is set with the perforative injecting hole, and the external cambered surface of vertebral plate is set with the located block. The surface of the located block is set with the concave threaded hole, and the located block on two sides of the threaded hole is set with the U-shaped bracket. The top of screw expands to form a locking block, which surface is set with the concave locking hole. The locking block on both sides of locking hole is set with the U-shaped locking groove.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: March 29, 2022
    Assignee: Central South University Xiangya Hospital
    Inventors: Xiyang Wang, Zheng Liu, Yilu Zhang, Yunqi Wu, Zhenchao Xu, Weiwei Li, Zhicheng Sun, Yilin Wang, Zhen Zhang, Dingchao Rong, Hongru Ye, Xiao Xiao
  • Patent number: 11284925
    Abstract: The invention provides the internal fixation system of spine posterior screw-plate, including the vertebral plate. The vertebral plate is curved, its internal cambered surface directly faces the spine, and external cambered surface of vertebral plate is equipped with a reinforcing rib. The vertebral plate is set with the perforative injecting hole. One side of vertebral plate is fixed with a fixed connecting plate, and the end of the fixed connecting plate away from the vertebral plate is set with the first regulating hole. The bottom of the fixed connecting plate on two sides of the first regulating hole is set with n-shaped caulking groove.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: March 29, 2022
    Assignee: Central South University Xiangya Hospital
    Inventors: Xiyang Wang, Zheng Liu, Yilu Zhang, Yunqi Wu, Zhenchao Xu, Weiwei Li, Zhicheng Sun, Yilin Wang, Zhen Zhang, Dingchao Rong, Hongru Ye, Xiao Xiao
  • Patent number: 11276227
    Abstract: This application discloses an object rendering method and apparatus, a storage medium, and an electronic device. The method includes obtaining a target pixel point to be processed in a diffuse map and a normal map of a to-be-rendered object; determining a first rendering color of the target pixel point according to a pre-integration simulation module and a normal direction parameter corresponding to the target pixel point, the pre-integration simulation module being configured to simulate a pre-integration map, the pre-integration map representing a correspondence between curvature and a color band, and the normal direction parameter representing a normal direction of the target pixel point in a world space coordinate system; determining a target rendering color of the target pixel point according to the first rendering color; and rendering the target pixel point by using the target rendering color.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: March 15, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Dian Liu, Yucheng Qu, Chaoyu Hua, Weiwei Li, Jianeng Lu
  • Publication number: 20220058008
    Abstract: The disclosed systems, structures, and methods are directed to optimizing memory access to constants in heterogeneous parallel computers, including systems that support OpenCL. This is achieved in an optimizing compiler that transforms program scope constants and constants at the outermost scope of kernels into implicit constant pointer arguments. The optimizing compiler also attempts to determine access patterns for constants at compile-time and places the constants in a variety of memory types available in a compute device architecture based on these access patterns.
    Type: Application
    Filed: August 24, 2020
    Publication date: February 24, 2022
    Inventors: Guansong ZHANG, Weiwei LI
  • Publication number: 20220049283
    Abstract: The present invention provides the methods of detecting the cleavage activity of PCs and proteases that are in purified form or from a biological sample and target to SARS-CoV-2 spike protein cleavage.
    Type: Application
    Filed: August 14, 2020
    Publication date: February 17, 2022
    Inventors: Weiwei Li Li, Jessica Mliu Li, William Lei Lee
  • Patent number: 11233201
    Abstract: The present disclosure relates to an organic electroluminescent device and a preparation method thereof. The organic electroluminescent device includes a hole injection layer including a first doped layer and/or a second doped layer. The first doped layer includes a P-type dopant, and the second doped layer includes a P-type dopant and a hole transport material. The organic electroluminescent device includes a hole transport layer formed on the hole injection layer, and an electron blocking layer formed on the hole transport layer. A difference in HOMO energy level between the electron blocking layer and the hole transport layer is less than or equal to 0.2 eV. The power consumption of the organic electroluminescent device can be reduced. The lifetime of the mass production device therefore can be increased.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: January 25, 2022
    Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.
    Inventors: Weiwei Li, Shengfang Liu, Chao Min, Lei Xu, Xiaoyu Gao, Xiuqi Huang
  • Patent number: 11205763
    Abstract: An organic electroluminescent device and an organic electroluminescent apparatus are disclosed. The organic electroluminescent device includes a first electrode layer, a first carrier functional layer, a light-emitting layer and a second electrode layer stacked in sequence, wherein a P-doped layer is arranged between the first carrier functional layer and the light-emitting layer. Thus the energy level bending of an interface between the first carrier functional layer and the light-emitting layer is modified, and the hole injection potential barrier at the interface between the two is reduced, thereby effectively reducing the turn-on voltage of the organic electroluminescent device.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: December 21, 2021
    Assignee: Yungu (Gu'an) Technology Co., Ltd.
    Inventors: Weiwei Li, Lin He, Mengzhen Li, Jingwen Tian, Tiantian Li
  • Publication number: 20210391746
    Abstract: Method for determining parameter of a passive impedance adapter applicable to VSC-HVDC, including: S1. obtaining VSC-HVDC impedance and VSC-HVDC impedance curve X(f) based on VSC-HVDC impedance; S2. estimating upper limit value of the main capacitor in the passive impedance adapter; S3. calculating adapter parameter curve Xadapter(f); S4. determining value of the main capacitor and varying value of the main resistor until min[X(f)?Xadapter(f)] is maximized; determining whether min[X(f)?Xadapter(f)]>k holds; S5. If min[X(f)?Xadapter(f)]>k does not hold, increasing the value of the main capacitor and performing steps S2-S4 until min[X(f)?Xadapter(f)]>k holds when the value of the main capacitor is within the range of the value of the main capacitor, storing the parameters in an available parameter set; S6. reducing the value of the main capacitor, and storing the parameters when min[X(f)?Xadapter(f)]>k holds in the available parameter set; S7.
    Type: Application
    Filed: August 27, 2021
    Publication date: December 16, 2021
    Inventors: Changyue Zou, Hong Rao, Xiaobin Zhao, Shukai Xu, Yan Li, Jun Chen, Qingming Xin, Weiwei Li, Shuangfei Yang, Junjie Feng
  • Patent number: 11194200
    Abstract: A liquid crystal display panel and a preparation method therefor are provided, including: an array substrate and a color filter substrate arranged opposite; the array substrate and the color filter substrate are correspondingly provided with a pixel region, during display the pixel region has an alignment dark fringe caused by photo-alignment, and the alignment dark fringe includes a dark fringe branch line located at an edge of the pixel region, wherein the color filter substrate is provided with a common electrode and a black matrix configured to define the pixel region, the array substrate is provided with a main pixel electrode and an edge voltage source, the edge voltage source is located at an edge of the pixel region and below the black matrix.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: December 7, 2021
    Assignee: CHENGDU CEC PANDA DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Xingkai Fu, Guidong Yang, Yinghui Chen, Weiwei Li
  • Publication number: 20210368749
    Abstract: A test device for noninvasive testing of fish habitat selection and application thereof is described herein. The device includes a camera device, a water circulating system, a fish transporting barrel, and a test water tank. The fish transporting barrel is a water barrel with an openable bottom. The central area of the test water tank is arranged as a closed adaptation area, a water outlet is formed in the bottom of the adaptation area. Fish passages are formed in the adaptation area. Test areas with equal sizes are formed around the adaptation area through partition plates. A water inlet is formed in each test area. Water flow buffering plates are arranged corresponding to the water inlets. Fish passages are formed in the bottoms of the partition plates of the test areas. The water inlets of the test areas are connected to the water circulating system.
    Type: Application
    Filed: March 29, 2021
    Publication date: December 2, 2021
    Inventors: Ming DUAN, Weiwei LI, Jianghui BAO, Chaoshuo ZHANG, Xiangyuan MI, Dongxu ZHANG
  • Patent number: 11158821
    Abstract: The present application provides an organic electroluminescent device and a manufacturing method thereof. A host material of a light-emitting layer of the organic electroluminescent device is co-evaporated by a donor host material and a acceptor host material in a same evaporation source to form an exciplex, which solves the technical problems such as low luminous efficiency, short service life or complicated operation process of the organic electroluminescent device in the prior art. The organic electroluminescent device according to the present application includes an anode, a cathode and a light-emitting layer disposed between the anode and the cathode, a host material of the light-emitting layer is formed by premixing a donor host material and a acceptor host material, the donor host material and the acceptor host material are co-evaporated in a same evaporation source to form an exciplex, and the host material is doped with a guest material.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: October 26, 2021
    Assignees: Kunshan New Flat Panel Display Technology Center Co., Ltd., KunShan Go-Visionox Opto-Electronics Co., Ltd
    Inventors: Weiwei Li, Fei Zhao, Chao Min, Song Liu, Wei Ao, Yucheng Liu
  • Patent number: 11121344
    Abstract: The present application discloses an organic electroluminescent device that includes a plurality of kinds of light-emitting units having different light-emitting wavelengths, wherein the light-emitting units are organic light-emitting diodes, the organic light-emitting diodes include a plurality of single-colored organic light-emitting diodes and/or a plurality of white-light organic light-emitting diodes provided with optical filters; at least one kind of the organic light-emitting diodes has a microcavity structure; a microcavity optical length Li of the organic light-emitting diode having the microcavity structure and a light-emitting wavelength ?i of the corresponding light-emitting unit meet the following formula: Li=ni?i, wherein ni?2, ni is a positive integer, and the ni corresponding to at least one of the plurality of kinds of light-emitting units having different light-emitting wavelengths ?i is larger than or equal to 3; m is the number of the kinds of the light-emitting units, m?i?1, i and m are p
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: September 14, 2021
    Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
    Inventors: Xiaokang Zhou, Mengzhen Li, Lin He, Weiwei Li, Hui Pang, Tiantian Li, Jingwen Tian, Xiaoyu Gao, Xiuqi Huang