Patents by Inventor Han-Cheng YEH

Han-Cheng YEH 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).

  • ORGANIC METAL COMPLEXES AND ORGANIC ELECTROLUMINESCENT DEVICES COMPRISING THE SAME
    Publication number: 20150188059
    Abstract: An organic metal complex and an organic electroluminescent device including the same are provided. The organic metal complex is represented by the formula of wherein Ar includes 1-naphthyl, 2-naphthyl or benzothienyl, and L includes acetylacetone, N,N-diisopropyl-benzamidinate or N,N-diisopropyl-diisopropyl-guanidinate. The organic electroluminescent device includes a pair of electrodes and an electroluminescent element disposed between the pair of electrodes, wherein the electroluminescent element includes the organic metal complex.
    Type: Application
    Filed: May 16, 2014
    Publication date: July 2, 2015
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Teng-Chih CHAO, Meng-Hao CHANG, Han-Cheng YEH, Ching-Hui CHOU
  • ORGANOMETALLIC COMPOUNDS AND ORGANIC ELECTROLUMINESCENCE DEVICES EMPLOYING THE SAME
    Publication number: 20150188060
    Abstract: Organometallic compounds and organic electroluminescence devices employing the same are provided. The organometallic compound has a chemical structure as represented by wherein R1, R2 are hydrogen, phenyl, biphenyl, diisopropyl amino, or derivatives thereof. The organic electroluminescence device includes a pair of electrodes and an electroluminescent element disposed between the pair of electrodes, wherein the electroluminescent element includes the organometallic compound.
    Type: Application
    Filed: May 16, 2014
    Publication date: July 2, 2015
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Ritdisplay Corporation
    Inventors: Teng-Chih CHAO, Meng-Hao CHANG, Han-Cheng YEH, Ching-Hui CHOU
  • ORGANIC METAL COMPOUND, ORGANIC LIGHT-EMITTING DEVICE EMPLOYING THE SAME, AND METHOD FOR PREPARING THE SAME
    Publication number: 20150179959
    Abstract: Organic metal compounds, organic light-emitting devices, and a method for preparing the same are provided. The organic metal compound has a chemical structure represented by Formula (I): wherein one of R1 and R2 is hydrogen, and the other is trialkyl silyl group; and L is an acetylacetone ligand, a picolinate ligand, a 2-(imidazol-2-yl) pyridine ligand, a 2-(4,5-dimethyl-imidazol-2-yl)pyridine ligand, a 3-(trifluoromethyl)-5-(pyridine-2-yl)-1,2,4-triazolate ligand, or a 3-(tert-butyl)-5-(pyridine-2-yl)-1,2,4-triazolate ligand.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 25, 2015
    Applicants: RITDISPLAY CORPORATION, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jin-Sheng LIN, Jia-Lun LIOU, Chun-Neng KU, Meng-Hao CHANG, Han-Cheng YEH