Patents by Inventor Wenpeng DAI

Wenpeng 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).

  • Patent number: 12016242
    Abstract: A heterocyclic compound containing heteroatom substituted fluorene is provided in the present disclosure. The heterocyclic compound includes a structure: Y1 is selected from O or S; X1, X2, X3, X4, X5, X6, X7, and X8 are independently selected from CRa or N; X9, X10, X11, X12, X13, X14, X15, X16, X17, X18, X19, X20, X21, X22, X23, and X24 are independently selected from CR1 or N; Ra is independently selected from hydrogen, deuterium, tritium, halogen, nitrile, cyano, nitro, hydroxyl, carbonyl, ester, carboxyl, imide, amide, C1-C20 alkoxy, C1-C20 alkyl, C3-C20 cycloalkyl, C2-C20 alkenyl, C3-C20 cycloalkenyl, silyl, boron, phosphine oxide, phosphine, sulfonyl, amine, C6-C30 aryl, C3-C30 heteroaryl, or a ring structure; Y2, and Y3 are independently selected from O, S or NR2; Ar1 and Ar2 are independently selected from aryl or heteroaryl; and R1 and R2 are independently selected from hydrogen, deuterium, C1-C20 alkyl, C6-C30 aryl, or C3-C30 heteroaryl.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: June 18, 2024
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Wei Gao, Wenpeng Dai, Lei Zhang, Quan Ran, Lu Zhai, Lilian Kuang
  • Publication number: 20240147840
    Abstract: A compound is provided as having the structure of Formula I, where: A and B are each independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; L1, L2 are each independently a single bond, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; Ar1, Ar2, Ar3, and Ar4 are each independently a hydrogen atom, a deuterium atom, a cyano group, a nitro group, an amino group, a hydroxy group, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group.
    Type: Application
    Filed: February 9, 2023
    Publication date: May 2, 2024
    Inventors: Tingting LU, Wei GAO, Wenpeng DAI, Lu ZHAI, Kebin AN
  • Publication number: 20240147746
    Abstract: Provided are an organic compound and use thereof, where the organic compound has excellent thermal stability and thin-film stability, is stable when the organic electroluminescent device works, and when applied to the organic electroluminescent device as a charge generation layer material, enables the device to have a high current efficiency, a low drive voltage and a long lifetime.
    Type: Application
    Filed: December 22, 2023
    Publication date: May 2, 2024
    Applicants: Wuhan Tianma Microelectronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Dongyang Deng, Wenpeng Dai, Lilian Kuang
  • Patent number: 11939341
    Abstract: Provided are an organic compound, an electroluminescent material and an application thereof. The organic compound has a structure represented by Formula I. With the design of the spiro parent structure and the introduction of specific substituents, the organic compound can prevent materials from stacking and reduce the crystallinity of the molecule. The design of the spiro structure and substituents make the organic material have a high triplet state energy level Ti, and the nitrogen heterocycle and its linking groups make the organic compound have characteristics of good electron and hole transport performances. The organic compound has suitable HOMO and LUMO energy levels, facilitating the coordination of adjacent layers in terms of energy level. The organic compound also has advantages of high glass-transition temperature and good molecular thermal stability. Therefore, the organic compound can effectively improve the light emitting efficiency and lifetime of the device.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: March 26, 2024
    Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Quan Ran, Wei Gao, Lei Zhang, Wenpeng Dai
  • Patent number: 11917850
    Abstract: The display panel includes a plurality of light-emitting areas and a plurality of non-light-emitting areas, the plurality of light-emitting areas being space apart from each other by the plurality of non-light-emitting area; light-emitting elements each located in one of the plurality of light-emitting areas and including an anode and a cathode that are opposite to each other, and a light-emitting layer located therebetween; a cover layer covering a light-emission side of the light-emitting element. The cover layer includes a substrate and first dopants doped in the substrate, the first dopants are magnetic. When an external magnetic field intensity applied to the cover layer is changed by an amount greater than a preset magnetic field intensity, the first dopants in the substrate are rearranged from a first mode to a second mode.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: February 27, 2024
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Wei Gao, Lei Zhang, Wenjing Xiao, Wenpeng Dai, Jinghua Niu, Ping An
  • Patent number: 11905300
    Abstract: The present disclosure relates to a compound, a material for an organic electroluminescent device and an application thereof. The compound provided by the present disclosure has a relatively high refractive index and can effectively improve the light extraction efficiency and the external quantum efficiency of an organic electroluminescent device when used in the organic electroluminescent device especially as a material for the capping layer. The compound has a relatively high refractive index in the region of visible light (400-750 nm), which is conducive to improving the light-emitting efficiency. The compound has a relatively large extinction coefficient in the ultraviolet region (less than 400 nm), which is conducive to absorbing harmful light and protecting eyesight and has a relatively small extinction coefficient in the region of blue light (400-450 nm) and hardly absorbs blue light, which is conducive to improve the light-emitting efficiency.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: February 20, 2024
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Lu Zhai, Wei Gao, Wenpeng Dai, Lei Zhang, Quan Ran
  • Patent number: 11884679
    Abstract: Provided is a compound including a moiety A and one or two moieties B fused with the moiety A at fusing sites, in which X is N, O, S or C; and when X is O or S, Ar2-L1- is absent; Y1-Y4 are each independently C or N; L1 and L2 are each independently a single bond, a substituted or unsubstituted C6-C30 arylene, a substituted or unsubstituted C10-C40 fused arylene, or a substituted or unsubstituted C4-C30 heteroarylene; Ar1 and Ar2 are each independently a substituted or unsubstituted C6-C30 aryl, a substituted or unsubstituted C10-C40 fused aryl, a substituted or unsubstituted C4-C30 heteroaryl, or a substituted or unsubstituted C6-C40 fused heteroaryl, and * represents one of the fusing sites, N or CRa, where Ra is a substituted or unsubstituted C1-C20 alkyl, a substituted or unsubstituted C6-C30 aryl, or a substituted or unsubstituted C3-C30 heteroaryl.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: January 30, 2024
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Wenpeng Dai, Wei Gao, Lei Zhang, Quan Ran
  • Publication number: 20230357188
    Abstract: Provided are a phenanthrene compound and use thereof, wherein the phenanthrene compound has the structure represented by Formula I. The phenanthrene organic compound contains a heteroarylamine structure, and at least one of Ar2 and Ar3 is selected from substituted or unsubstituted C2-C20 nitrogen-containing fused-ring heteroaryl having an electron-withdrawing property. All active sites of phenanthrene are substituted and passivated, and the phenanthrene has a stable chemical structure and high thermal stability. The phenanthrene compound thus has a high glass transition temperature and a high refractive index in the visible-light field, and when applied to the CPL layer of an organic electroluminescent device, can effectively improve the light extraction efficiency of the organic electroluminescent device, thereby improving the luminescence efficiency and service life of the organic electroluminescent device.
    Type: Application
    Filed: July 5, 2023
    Publication date: November 9, 2023
    Applicants: Wuhan Tianma Microelectronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Wei GAO, Wenpeng DAI, Lu ZHAI, Yi LIU
  • Patent number: 11807615
    Abstract: The present disclosure provides a compound having a formula (I): wherein Cy represents substituted or unsubstituted C5-C40 aryl; X represents oxygen atom or sulfur atom; L1 is selected from substituted or unsubstituted C5-C40 aryl, or substituted or unsubstituted C3-C40 heteroaryl; A includes a structure represented by formula (II): wherein each of L2 and L3 is independently selected from substituted or unsubstituted C5-C40 aryl, or substituted or unsubstituted C3-C40 heteroaryl; each of Ar1, Ar2, and Ar3 is independently selected from substituted or unsubstituted C5-C40 aryl, substituted or unsubstituted C3-C40 heteroaryl, or substituted or unsubstituted arylamine containing one or two nitrogen atoms; each of m, q, and r is independently selected from 0 or 1; and * indicates a connection position.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: November 7, 2023
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Lei Zhang, Wei Gao, Jinghua Niu, Wenpeng Dai, Wenjing Xiao, Yan Lu, Hongyan Zhu
  • Patent number: 11812660
    Abstract: An organic compound, an electroluminescent material and its application are provided in the present disclosure. The organic compound includes a structure: X is selected from O, S, N—RN1, and CRC1RC2; Y is selected from O, S, N—RN2, CRC3RC4, O?S?O, SiRS1RS2, O?P—Ar1, and S?P—Ar2, RN1, RN2, RC1, RC2, RC3, RC4, RS1, and RS2 are each independently selected from C1˜C20 linear or branched alkyl, C6˜C40 aryl, and C3˜C40 heteroaryl; Ar1 and Ar2 are each independently selected from C6˜C40 aryl and C3˜C40 heteroaryl; L1, L2, L3, L4, and L5 are each independently selected from a single bond, C6˜C40 arylene, and C3˜C40 heteroarylene; R1, R2, R3, R4, and R5 are each independently selected from deuterium, C1˜C20 linear or branched alkyl, C1˜C20 alkoxy, C1˜C20 alkylthio, C3˜C20 cycloalkyl, C6˜C40 aryl, C3˜C40 heteroaryl, and C6˜C40 arylamino; and n1, n2, n3, n4, n5, m1, m2, m3, m4, and m5 are integers each independently selected from 0-2.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: November 7, 2023
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Quan Ran, Wei Gao, Lei Zhang, Wenpeng Dai
  • Patent number: 11780846
    Abstract: A compound having a structure represented by Formula I, and an organic electroluminescent device and an electronic apparatus including the same. The compound may be used as a hole transport material of an organic electroluminescent device. The compound provided by the present disclosure has a shallow LUMO, an appropriate HOMO energy level and a high triplet energy level ET, and can effectively improve hole transport ability, and block electron transition and exciton transport; meanwhile, the compound has high electron mobility, and excellent thermal stability and thin film stability. The compound provided by the present disclosure is used as the hole transport material of an organic electroluminescent device, so that the material has good solubility and appropriate mobility and the inter-pixel cross-talk is effectively avoided, which is conducive to improving light emitting efficiency and lifetime of the device.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: October 10, 2023
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Wenpeng Dai, Wei Gao, Jinghua Niu, Lei Zhang, Wenjing Xiao
  • Patent number: 11785841
    Abstract: A compound having a D-(?)-?-(?)-A chemical structure and improving brightness and efficiency of light-emitting is described.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: October 10, 2023
    Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Wenpeng Dai, Wei Gao, Jinghua Niu, Lei Zhang, Yang Li, Dongyang Deng, Ping An
  • Patent number: 11780831
    Abstract: Provided is a compound represented by formula 1, and a display panel and a display apparatus including the compound. In formula 1, L1 and L2 are each independently selected from the group consisting of a single bond, C6-C30 aryl, and C4-C30 heteroaryl; a and b are each independently selected from 0, 1, 2, 3, or 4; D1 and D2 are each independently a nitrogen-containing electron donor unit selected from the group consisting of carbazolyl and derivative groups thereof, acridinyl and derivative groups thereof, diarylamino and derivative groups thereof, and triarylamino and derivative groups thereof; and c and d are each independently selected from 0, 1, 2, 3, or 4, and c+d?1.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: October 10, 2023
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., WUHAN TIANMA MICRO-ELECTRONICS CO., LTD
    Inventors: Wei Gao, Lei Zhang, Wenpeng Dai, Quan Ran, Lu Zhai, Wenjing Xiao, Jinghua Niu
  • Patent number: 11758809
    Abstract: A compound having a structure shown in Chemical Formula 1 is described. In an embodiment, Ar is C6-C20 aryl or C5-C20 heteroaryl; D1 and D2 are electron-donating groups, A1 and A2 are electron-accepting groups, and m, n, p and q are 1, 2, or 3; D1 and D2 are a substituted or unsubstituted C1-C20 alkyl, a substituted or unsubstituted C3-C20 cycloalkyl, a substituted or unsubstituted C1-C20 alkoxy, a substituted or unsubstituted C3-C20 heterocyclic group, a substituted or unsubstituted C6-C40 aryl, a substituted or unsubstituted C4-C40 heteroaryl, a substituted or unsubstituted C10-C60 fused aryl, a substituted or unsubstituted C10-C60 fused heteroaryl, a substituted or unsubstituted C12-C40 carbazolyl, a substituted or unsubstituted C12-C40 diphenylamino group, or a C13-C40 acridinyl; and A1 and A2 are each a nitrogen-containing heterocyclic group, a cyano-containing group, a carbonyl-containing group, a sulfone-based group, and a phosphoroso-containing group.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: September 12, 2023
    Assignees: Shanghai Tianma AM-OLED Co., Ltd., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Wei Gao, Wenjing Xiao, Lei Zhang, Jinghua Niu, Wenpeng Dai
  • Patent number: 11751475
    Abstract: The present disclosure provides an organic compound, having a structure represented by Formula 1, in which L1, L2, and L3 are each independently selected from a single bond, or C4-C30 arylene; X1, X2, and X3 are each independently selected from CRa, or N, and at least one of X1, X2, or X3 is N; Ar1, Ar2, and Ar3 are each independently selected from C6-C60 aryl, a structure represented by Formula 2, or a structure represented by Formula 3; at least one of Ar1, Ar2, or Ar3 is the structure represented by Formula 2, and at least one of Ar1, Ar2, or Ar3 is the structure represented by Formula 3; X4, X5, X6, and X7 are each independently selected from CRb, or N, and at least one of X4, X5, X6, or X7 is N; # indicates a bonding position; and Ra and Rb are specifically defined in the specification.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: September 5, 2023
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Lei Zhang, Wei Gao, Jinghua Niu, Wenpeng Dai, Wenjing Xiao
  • Patent number: 11751474
    Abstract: The present disclosure relates to the field of organic electroluminescence materials and particularly relates to a compound and an organic light emitting display device. The compound has a structure represented by Formula (I): and, m, n, p, q, r, s, u, and v are each independently selected from 0 or 1, at least one of r and s is 1, at least one of u and v is 1, L1, L2, L3, and L4 are each independently selected from substituted or unsubstituted C6-C40 aryl, or substituted or unsubstituted C3-C40 heterocyclyl, and A1, A2, A3, and A4 each are independently selected from an electron acceptor unit.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: September 5, 2023
    Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Wei Gao, Ying Liu, Lei Zhang, Wenpeng Dai, Jinghua Niu, Gaojun Huang
  • Patent number: 11691991
    Abstract: The present invention relates to a compound, a display panel and a display device. The compound has a structure represented by Formula I. The compound takes a spiro structure as a non-conjugated connecting unit, and a boron-containing group as an electron-accepting group. A light-emitting compound obtained by taking the group as a building block has a narrower half-peak width and higher color purity. The boron-containing spiro structure is connected with an electron-donating group to obtain a bipolar compound, and as a thermal activation delay fluorescence material, the bipolar compound can be used a light-emitting layer material, particularly a doped material, and can also be used as a fluorescent host material or a phosphorescent host material. The compound provided herein can achieve low drive voltages and high luminescence efficiencies when applied to organic electroluminescent devices.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: July 4, 2023
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Wei Gao, Wenpeng Dai, Lei Zhang, Quan Ran, Jinghua Niu, Xia Li
  • Publication number: 20230172057
    Abstract: A heterocyclic compound containing heteroatom substituted fluorene and an optoelectronic device are provided. The heterocyclic compound includes a structure in Formula I: where Y is selected from O or S; at least one of X1, X2, X3, X4, X5, X6, X7 and X8 is a N atom, and rest are CR2; L1, L2, and L3 are independently selected from single bond, substituted or unsubstituted aromatic groups; Ar1 and Ar2 are independently selected from substituted or unsubstituted aromatic groups or heteroaryl groups; R1 is selected from a hydrogen atom, a deuterium atom, or an aromatic group or a heteroaryl group condensed with adjacent groups; and R2 is selected from a hydrogen atom, a deuterium atom, a substituted or unsubstituted C1-C5 alkyl group, a halogen, a cyano group, or an amino group.
    Type: Application
    Filed: February 8, 2022
    Publication date: June 1, 2023
    Inventors: Wei GAO, Wenpeng DAI, Lei ZHANG, You GAO, Lu ZHAI
  • Patent number: 11665959
    Abstract: The present disclosure relates to the field of organic electroluminescence technology, and in particular to a compound, an organic electroluminescent device, and a display equipment. The compound of the present disclosure has the structure shown in Formula (I).
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: May 30, 2023
    Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Lei Zhang, Wei Gao, Wenpeng Dai, Jinghua Niu
  • Publication number: 20230151020
    Abstract: The present disclosure provides a heterocyclic compound and an organic electroluminescence device. The heterocyclic compound has a structure as shown in formula I.
    Type: Application
    Filed: January 18, 2023
    Publication date: May 18, 2023
    Applicants: WUHAN TIANMA MICROELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Wei GAO, Wenpeng DAI, Lu ZHAI, TINGTING LU, Lilian KUANG