Patents by Inventor Lifei Cai

Lifei Cai 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: 20220115603
    Abstract: The present invention relates to an organic metal compound and application thereof. The organometallic compound has a structure as shown in Formula I. The compound provided by the present invention has the advantages of low sublimation temperature, high light and electricity stability, high luminous efficiency, long lifetime, high color saturation and the like, can be used in an organic light-emitting device, and particularly has a possibility of being applied to an AMOLED industry as a red luminescent phosphorescent material.
    Type: Application
    Filed: November 2, 2019
    Publication date: April 14, 2022
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD
    Inventors: Liangliang YAN, Lei DAI, Lifei CAI
  • Publication number: 20220115599
    Abstract: The invention provides an organic electroluminescent material and application thereof. The organic electroluminescent material of the invention contains pyrazine and cyano groups, has the structure of Formula (I). The organic electroluminescent device manufactured by doping with the compound of the invention can significantly improve the power efficiency, and can reduce the turn-on voltage.
    Type: Application
    Filed: November 2, 2019
    Publication date: April 14, 2022
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD
    Inventors: Huiyang LI, Lei DAI, Lifei CAI
  • Publication number: 20220112230
    Abstract: Preparation of n{circumflex over (?)}n{circumflex over (?)}c{circumflex over (?)}n tetradentate platinum (ii) complex and uses thereof are provided. The complex of the present invention has a structure as shown in Formula (11). The performance of an organic electroluminescence device prepared from the complex of the present invention is better than that of a reference device. A great application value is realized on an OLED (organic light-emitting diode), and the N{circumflex over (?)}N{circumflex over (?)}C{circumflex over (?)}N tetradentate platinum (II) complex can be used as a phosphorescent doped material to manufacture an orange red light OLED device with a high luminous efficiency.
    Type: Application
    Filed: November 2, 2019
    Publication date: April 14, 2022
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD
    Inventors: Jian KANG, Lei DAI, Lifei CAI
  • Publication number: 20220081458
    Abstract: The invention relates to a platinum (ii) tetradentate onno complex luminescent material, preparation method and application thereof in organic light emitting diode. A platinum (II) tetradentate pyridine diphenol ONNO complex light-emitting material having the chemical structure of Formula (I) can be used for manufacturing organic light-emitting diodes emitting pure red light. The light-emitting material of the invention, because the end of the left side thereof is connected to benzofuran, has more red shift than the emission spectrum of the bipyridyl phenol ONNO-Pt(II) complex without a benzofuran group, and the anti-aggregation performance of the platinum(II) complex is effectively increased, as a B group is introduced on the phenolic ring on the right side thereof, so the self-quenching rate constant is low, and the color purity emitting deep red light and better luminous efficiency can be maintained in a certain range of doping concentration, which is more suitable for industrial preparation systems.
    Type: Application
    Filed: November 2, 2019
    Publication date: March 17, 2022
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD
    Inventors: Jiahuan PENG, Huiyang LI, Lei DAI, Lifei CAI
  • Publication number: 20220033421
    Abstract: The invention provides an organic electroluminescent material, preparation method thereof and an organic electroluminescent device. The organic electroluminescent material of the invention is a class of compounds based on imidazole [1,5-a][1,8]naphthyridine, and has a structure presented by Formula (I) as below. The invention also provides application of the material in organic light-emitting diodes (OLED). The compound of the invention has high stability, and the organic electroluminescent device according to the invention has high efficiency.
    Type: Application
    Filed: November 2, 2019
    Publication date: February 3, 2022
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD
    Inventors: Jiahuan PENG, Huiyang LI, Lei DAI, Lifei CAI
  • Publication number: 20220033420
    Abstract: The invention provides an organic electroluminescent material and application thereof in optoelectronic devices. The organic electroluminescent material according to the invention having the structure of Formula (I), the compound of which contains a unit formed by imidazole and indenopyrrole, with its spiro structure molecule that is beneficial to inhibit the stacking between molecules. The compound has better thermal stability and will be applied to organic electroluminescent devices with characteristics such as luminous efficiency and color purity, has the potential to be applied to organic electroluminescent devices. The invention further provides an optoelectronic device including a cathode, an anode, and an organic layer. The organic layer is one or more of a hole injection layer, a hole transport layer, a light-emitting layer, a hole-blocking layer, an electron injection layer, and an electron transport layer. At least one layer of the organic layer contains the compound having Formula (I).
    Type: Application
    Filed: November 2, 2019
    Publication date: February 3, 2022
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD
    Inventors: Huiyang LI, Lei DAI, Lifei CAI
  • Publication number: 20210332290
    Abstract: The present invention relates to an organic light-emitting material based on a platinum tetradentate ONCN complex, a preparation method and application thereof in organic light-emitting diodes, A platinum (II) tetradentate ONCN complex light-emitting material having the chemical structure of Formula I can be used for manufacturing organic light emitting diodes with pure greenemission. The material has been optimized in structure and has better anti-aggregation ability compared with the reported platinum (II) tetradentate ONCN complex light-emitting material. The emission spectrum of the material only slightly changes or even remains unchanged at high doping concentration, so the organic light-emitting diode made of this material obviously has higher emission efficiency. The preparation method for the complex light-emitting material is simple and does not require the use of highly toxic and harmful reagents, and is more suitable for industrial preparation systems.
    Type: Application
    Filed: July 25, 2019
    Publication date: October 28, 2021
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD
    Inventors: Jiahuan PENG, Huiyang LI, Lei DAI, Lifei CAI
  • Publication number: 20200287085
    Abstract: A device containing an organometal-complex luminescent material has a luminescent layer that includes an organometal complex having a structural formula (I), wherein A, B and C refer to substituted or unsubstituted C, N, O and S atoms independently; a dashed ring for linkage between A and B atoms refers to a substituted or unsubstituted conjugated ring structure; L1, L2, L3 and L4 are single or double bonds independently, L3 and L4 are part of the conjugated ring structure for linkage between A and B atoms; X, X1, Y and Y1 are C, N, O and S atoms independently; Ar1 and Ar2 are substituted or unsubstituted conjugated ring structures independently; M refers to Pt, W and Au atoms. An organometal complex in the luminescent material is high in fluorescence quantum efficiency and heat stability and low in quenching constant and can be used for manufacturing high-efficiency and low-efficiency roll-off red-light OLEDs.
    Type: Application
    Filed: September 25, 2018
    Publication date: September 10, 2020
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD
    Inventors: Mingquan YU, Lei DAI, Lifei CAI
  • Publication number: 20200287145
    Abstract: The present invention relates to an organometal-complex luminescent material which has a structural formula (I), wherein A, B and C refer to substituted or unsubstituted C, N, O and S atoms independently; a dashed ring for linkage between A and B atoms refers to a substituted or unsubstituted conjugated ring structure; L1, L2, L3 and L4 are single bonds or double bonds independently, wherein L3 and L4 are part of the conjugated ring structure for linkage between A and B atoms; X, X1, Y and Y1 are C, N, O and S atoms independently; Ar1 and Ar2 are substituted or unsubstituted conjugated ring structures independently; M refers to Pt, W and Au atoms. An organometal complex in the luminescent material is high in fluorescence quantum efficiency and heat stability and low in quenching constant and can be used for manufacturing high-efficiency and low-efficiency roll-off red-light OLEDs.
    Type: Application
    Filed: September 25, 2018
    Publication date: September 10, 2020
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD
    Inventors: Mingquan YU, Lei DAI, Lifei CAI
  • Patent number: 10533129
    Abstract: This invention relates to an OLED, comprising an anode, a cathode, and an organic layer, the organic layer at least contains one or more layers containing light emitting layer from the hole injection layer, hole transport layer, electron injection layer, electron transport layer, light emitting layer; the light emitting layer is composed of a single compound with the structure of formula (I). The OLED can emit blue light and has the advantages of high light emitting efficiency, excellent color purity and long lifetime.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: January 14, 2020
    Assignees: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD., BEIJING AGLAIA TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Kam-Hung Low, Zhe Li, Jinxin Chen, Lifei Cai
  • Patent number: 10505118
    Abstract: This invention relates to an OLED, comprising an anode, a cathode, and an organic layer, the organic layer at least contains one or more layers containing light emitting layer from the hole injection layer, hole transport layer, electron injection layer, electron transport layer, light emitting layer; the light emitting layer is a host guest doping system composed of host materials and guest materials. The light-emitting zone of the light emitting layer is blue 440-490 nm, and the host material or guest material has a structure with the formula (I). The OLED has the advantages of excellent light emitting efficiency, excellent color purity and long lifetime.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: December 10, 2019
    Assignees: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD., BEIJING AGLAIA TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Kam-Hung Low, Zhe Li, Jinxin Chen, Lifei Cai
  • Publication number: 20190263735
    Abstract: This invention relates to an OLED, comprising an anode, a cathode, and an organic layer, the organic layer at least contains one or more layers containing light emitting layer from the hole injection layer, hole transport layer, electron injection layer, electron transport layer, light emitting layer; the light emitting layer is a host guest doping system composed of host materials and guest materials. The light-emitting zone of the light emitting layer is 490-750 nm, and the host material has a structure with the formula (I). The OLED can emit red or green light, with the advantages of excellent light emitting efficiency, excellent color purity and long lifetime.
    Type: Application
    Filed: September 1, 2015
    Publication date: August 29, 2019
    Applicants: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD ., BEIJING AGLAIA TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Kam-Hung LOW, Zhe LI, Jinxin CHEN, Lifei CAI
  • Patent number: 10374169
    Abstract: The present invention relates to an organic hole transport material having a compound of the structure shown in formula (I), wherein R1-R2 independently represent hydrogen, C1-C8 substituted or substituted alkyl, C2-C8 substituted or unsubstituted alkenyl, C2-C8 substituted or unsubstituted alkynyl, or C6-C10 substituted or substituted aryl, the substituents being C1-C4 alkyl or halogen. Device experiments show that the organic hole transport material of the present invention has high glass-transition temperature and high thermal stability; a hole-only organic semiconductor diode device and an organic electroluminescent device manufactured by the organic hole transport material have good hole transport performance, high and stable current efficiency, and a long device life.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: August 6, 2019
    Assignee: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO. LTD
    Inventors: Kam-Hung Low, Chin-Hsin Chen, Zhe Li, Lei Dai, Lifei Cai
  • Patent number: 10347843
    Abstract: The present invention discloses an “organic electronic material”, belonging to the organic light-emitting device (OLED) display materials field. The organic electronic material in the present invention has a structural formula (I), having good thermal stability, high luminous efficiency, high purity of light emission. The OLED made by this kind of organic light-emitting material has the advantages of excellent organic light-emitting efficiency, excellent color purity and long service life.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: July 9, 2019
    Assignees: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD., BEIJING AGLAIA TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Kam-Hung Low, Zhe Li, Jinxin Chen, Lifei Cai
  • Publication number: 20190207121
    Abstract: The present invention relates to a hole-only organic semiconductor diode device, comprising an anode, a cathode, and organic layers, wherein the anode and the cathode are made of metal, inorganic materials or organic compounds; the organic layers are a hole injection layer, a hole transport layer, and an electron barrier layer; the electron barrier layer, the hole transport layer and/or the hole injection layer contain the compound of formula (I). Device experiments show that the hole-only organic semiconductor diode device of the present invention has good electron transport performance, high and stable current efficiency, and a long device life.
    Type: Application
    Filed: November 30, 2016
    Publication date: July 4, 2019
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO. LTD
    Inventors: Kam-Hung LOW, Chin-Hsin CHEN, Zhe LI, Lei DAI, Lifei CAI
  • Publication number: 20180366655
    Abstract: The present invention relates to an organic hole transport material having a compound of the structure shown in formula (I), wherein R1-R2 independently represent hydrogen, C1-C8 substituted or substituted alkyl, C2-C8 substituted or unsubstituted alkenyl, C2-C8 substituted or unsubstituted alkynyl, or C6-C10 substituted or substituted aryl, the substituents being C1-C4 alkyl or halogen. Device experiments show that the organic hole transport material of the present invention has high glass-transition temperature and high thermal stability; a hole-only organic semiconductor diode device and an organic electroluminescent device manufactured by the organic hole transport material have good hole transport performance, high and stable current efficiency, and a long device life.
    Type: Application
    Filed: November 30, 2016
    Publication date: December 20, 2018
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO. LTD
    Inventors: Kam-Hung LOW, Chin-Hsin CHEN, Zhe LI, Lei DAI, Lifei CAI
  • Publication number: 20180358561
    Abstract: The present invention relates to an organic electron transport material having a compound of the structure shown in formula (I), wherein R1-R4 independently represent hydrogen, C1-C8 substituted or substituted alkyl, C2-C8 substituted or unsubstituted alkenyl, or C2-C8 substituted or unsubstituted alkynyl, the substituents being C1-C4 alkyl or halogen. Device experiments show that an electronic-only organic semiconductor diode device and an organic electroluminescent device manufactured by the organic electron transport material of the present invention have good electron transport performance, high and stable luminance, and a long device life.
    Type: Application
    Filed: November 30, 2016
    Publication date: December 13, 2018
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO. LTD
    Inventors: Kam-Hung LOW, Chin-Hsin CHEN, Zhe LI, Lei DAI, Lifei CAI
  • Publication number: 20180337362
    Abstract: An electronic-only organic semiconductor diode device comprises an anode, a cathode and organic layers. The anode and the cathode are made of metal, inorganic matters and organic compounds. The organic layers are a hole barrier layer, an electron transport layer and an electron injection layer. The hole barrier layer, the electron transport layer and/or the electron injection layer contains the compound of formula (I), wherein R1-R4 independently represent hydrogen, C1-C8 substituted or substituted alkyl, C2-C8 substituted or unsubstituted alkenyl, or C2-C8 substituted or unsubstituted alkynyl, the substituents being C1-C4 alkyl or halogen. Device experiments show that the electronic-only organic semiconductor diode device and an organic electroluminescent device manufactured by the organic electron transport material of the present invention have good electron transport performance, high and stable luminance, and a long device life.
    Type: Application
    Filed: November 30, 2016
    Publication date: November 22, 2018
    Applicant: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO. LTD
    Inventors: Kam-Hung LOW, Chin-Hsin CHEN, Zhe LI, Lei DAI, Lifei CAI
  • Publication number: 20180297950
    Abstract: The present invention discloses an organic electronic luminescent material, with the chemical formula (I). The compounds having the chemical formula (I) in the present invention have highly stable electron-withdrawing groups and electron-donating groups with stable chemical bonds between them but without a strong conjugation. With these features, the compounds with the formula (I) have high fluorescence quantum efficiency and excellent charge transport ability. These compounds are closer to the dark color of international standard, which is conducive to achieve full color displays with higher color purity.
    Type: Application
    Filed: April 27, 2016
    Publication date: October 18, 2018
    Applicants: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD ., BEIJING AGLAIA TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Zhe LI, Kam-Hung LOW, Lei DAI, Lifei CAI
  • Publication number: 20180301637
    Abstract: The present invention relates to an OLED, comprising an anode, a cathode and one or more organic layers, and at least one of the organic layers comprising a material having the following chemical formula I or II. Since the compound having the formula (I) in the present invention has electron-withdrawing groups and electron-donating groups with high stability, stable chemical bonds exist between them, without strong conjugation. With these characteristics, the compound having the formula (I) has higher fluorescence quantum efficiency and excellent charge transport ability, and its emission spectra are closer to the international standard of dark blue, to facilitate to the realization of full-color displays with higher color purity.
    Type: Application
    Filed: April 27, 2016
    Publication date: October 18, 2018
    Applicants: GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD ., BEIJING AGLAIA TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Zhe LI, Kam-Hung LOW, Lei DAI, Lifei CAI