Patents by Inventor Quan RAN

Quan RAN 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: 20210115059
    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: Application
    Filed: December 21, 2020
    Publication date: April 22, 2021
    Inventors: Wenpeng DAI, Wei GAO, Lei ZHANG, Quan RAN
  • Publication number: 20210024511
    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: Application
    Filed: September 29, 2020
    Publication date: January 28, 2021
    Inventors: Wei GAO, Lei ZHANG, Wenpeng DAI, Quan RAN, Lu ZHAI, Wenjing XIAO, Jinghua NIU
  • Publication number: 20200403159
    Abstract: Provided are a compound having a structure represented by Formula I, and an organic light-emitting element, a display panel and a display device including the same. The organic light-emitting element includes an anode, a cathode and an organic thin film disposed between the anode and the cathode; where the organic thin film includes any one or a combination of at least two of a light-emitting layer, an electron transport layer and a hole blocking layer, and includes at least the light-emitting layer, and at least one of the light-emitting layer, the electron transport layer or the hole blocking layer contains at least one of the compounds. The compound has a relatively deep LUMO energy level, a relatively deep HOMO energy level, a relatively high triplet energy level, a high electron mobility, a high Tg, and good thermal and chemical stability, and is not easy to crystallize.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Inventors: Lei ZHANG, Wei Gao, Jinghua Niu, Wenpeng Dai, Quan Ran, Xia Li
  • Publication number: 20200403161
    Abstract: Provided are a compound, an organic light-emitting element including the same, a display panel and a display device. The compound has a structure represented by Formula I. The organic light-emitting element includes an anode, a cathode and an organic thin film layer disposed between the anode and the cathode; where the organic thin film layer includes a light-emitting layer, and further includes any one or a combination of at least two of a hole transport layer, an electron blocking layer and an auxiliary light-emitting layer, and at least one of the hole transport layer, the electron blocking layer and the auxiliary light-emitting layer contains at least one of the compounds. The compound has a relatively shallow HOMO energy level, a relatively shallow LUMO energy level, a relatively high triplet energy level, an appropriate hole mobility, a relatively high Tg, a large molecular torque and good thermal stability.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Inventors: Quan RAN, Wei GAO, Jinghua NIU, Lei ZHANG, Wenpeng DAI
  • Publication number: 20200395554
    Abstract: Provided are a compound and an organic electro-optical device containing the same. The compound has a structure represented by Formula I. The organic electro-optical device comprises an anode, a cathode, and at least one organic thin film layer located between the cathode and the anode. The molecule of the compound provided by the present disclosure has higher rigidity, a large conjugated system, a deeper LUMO energy level, a higher triplet energy level and good molecular stability, and is not easy to crystallize, and thus the compound can be used as an electron transport material or a hole blocking material of the organic electro-optical device, facilitating the reduction of the turn-on voltage of the device, the improvement of current efficiency and the increase of service life.
    Type: Application
    Filed: August 31, 2020
    Publication date: December 17, 2020
    Inventors: Wenjing XIAO, Wei Gao, Lei Zhang, Wenpeng Dai, Quan Ran, Jinghua Niu
  • Publication number: 20200227655
    Abstract: The present disclosure relates provides an compound represented by Chemical Formula 1, in which Ar1, Ar2, Ar3 and Ar4 are C6-C40 aryl, or C5-C40 heteroaryl; R1 and R2 are —C(R)2—, —N(R)—, —O—, or —S—; X1, X2 and X3 are C or N; L1 and L2 are phenylene, naphthylene, or biphenylene; Y1 and Y2 are each an electron-withdrawing group selected from a N-containing heterocyclic group, or a cyano-containing group. The compound of the present disclosure has bipolar characteristics of simultaneously transmitting holes and electrons. The bipolar transmission host is beneficial to charge transmission balance in the light-emitting layer, and can widen the exciton recombination region, to simplify the device structure and improving device efficiency. The present disclosure further provides a display panel and a display apparatus.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 16, 2020
    Inventors: Quan RAN, Lei ZHANG, Wei GAO, Jinghua NIU, Wenpeng DAI