Patents by Inventor Yi-Hwa Song

Yi-Hwa Song 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: 11196015
    Abstract: A display apparatus and a manufacturing method of the display apparatus are provided. The display apparatus includes a substrate and a first sub-pixel located on the substrate. The first sub-pixel includes a first bottom electrode, a first light-emitting layer, and a first top electrode. The first light-emitting layer is located on the first bottom electrode. The first light-emitting layer includes a first groove structure or a first protrusion structure. The first top electrode is located on the first light-emitting layer.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: December 7, 2021
    Assignee: Au Optronics Corporation
    Inventors: Shang-Ta Tsai, Yi-Hwa Song, Hsien-Hung Chen, Hsi-An Chen
  • Publication number: 20200358019
    Abstract: A display apparatus and a manufacturing method of the display apparatus are provided. The display apparatus includes a substrate and a first sub-pixel located on the substrate. The first sub-pixel includes a first bottom electrode, a first light-emitting layer, and a first top electrode. The first light-emitting layer is located on the first bottom electrode. The first light-emitting layer includes a first groove structure or a first protrusion structure. The first top electrode is located on the first light-emitting layer.
    Type: Application
    Filed: November 4, 2019
    Publication date: November 12, 2020
    Applicant: Au Optronics Corporation
    Inventors: Shang-Ta Tsai, Yi-Hwa Song, Hsien-Hung Chen, Hsi-An Chen
  • Patent number: 8592585
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: November 26, 2013
    Assignee: National Tsing Hua University
    Inventors: Yun Chi, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Patent number: 8410269
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: April 2, 2013
    Assignee: National Tsing Hua University
    Inventors: Yun Chi, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Publication number: 20110313161
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Application
    Filed: August 29, 2011
    Publication date: December 22, 2011
    Applicant: National Tsing Hua University
    Inventors: Yun CHI, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Publication number: 20110313162
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Application
    Filed: August 29, 2011
    Publication date: December 22, 2011
    Applicant: National Tsing Hua University
    Inventors: Yun CHI, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Patent number: 8030490
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: October 4, 2011
    Assignee: National Tsing Hua University
    Inventors: Yun Chi, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Publication number: 20110159774
    Abstract: A shadow mask includes a frame, at least a support structure and at least a mask. The frame substantially defines a central opening region. The support structure is substantially disposed in the central opening region, and the support structure is connected to the frame in a movable manner. The mask is substantially disposed in the central opening region, and supported by the support structure.
    Type: Application
    Filed: December 1, 2010
    Publication date: June 30, 2011
    Inventors: Yi-Hwa Song, Shih-Feng Hsu
  • Publication number: 20080217582
    Abstract: A new class of luminescent iridium(III) complexes, luminescent material and organic electroluminescent device thereof had been disclosed. The novel luminescent iridium(III) complexes comprises the formula [(C?N)2Ir(P?O)] with 2-(diphenylphosphino)phenolate as the ancillary chelate. The iridium complexes of the present invention can be used as the red, blue or green-emitting dopants. These luminescent materials can be applied in the fabrication of light-emitting layer of organic electroluminescent devices and providing the high efficiently red, blue or green light organic electroluminescent devices of commercial pursuits.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 11, 2008
    Inventors: Yun Chi, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Publication number: 20080161568
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Application
    Filed: December 7, 2007
    Publication date: July 3, 2008
    Applicant: YUN CHI
    Inventors: Yun Chi, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Patent number: 7112690
    Abstract: A series of noble metal organometallic complexes of the general formula (I): MLaXb(FBC)c, wherein M is a noble metal such as iridium, ruthenium or osmium, and L is a neutral ligand such as carbonyl, alkene or diene; X is an anionic ligand such as chloride, bromide, iodide and trifluoroacetate group; and FBC is a fluorinated bidentate chelate ligand such as beta diketonate, beta-ketoiminate, amino-alcoholate and amino-alcoholate ligand, wherein a is an integer of from zero (0) to three (3), b is an integer of from zero (0) to one (1) and c is an 10 integer of from one (1) to three (3). The resulting noble metal complexes possess enhanced volatility and thermal stability characteristics, and are suitable for chemical vapor deposition(CVD) applications. The corresponding noble metal complex is formed by treatment of the FBC ligand with a less volatile metal halide.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: September 26, 2006
    Assignees: National Research Council of Canada, National Tsing Hua University
    Inventors: Yun Chi, Yao-Lun Chen, Chao-Shiuan Liu, Yi-Hwa Song, Ying-Hui Lai, Arthur J. Carty
  • Publication number: 20050033075
    Abstract: A series of noble metal organometallic complexes of the general formula (I): MLaXb(FBC)c, wherein M is a noble metal such as iridium, ruthenium or osmium, and L is a neutral ligand such as carbonyl, alkene or diene; X is an anionic ligand such as chloride, bromide, iodide and trifluoroacetate group; and FBC is a fluorinated bidentate chelate ligand such as beta diketonate, beta-ketoiminate, amino-alcoholate and amino-alcoholate ligand, wherein a is an integer of from zero (0) to three (3), b is an integer of from zero (0) to one (1) and c is an 10 integer of from one (1) to three (3). The resulting noble metal complexes possess enhanced volatility and thermal stability characteristics, and are suitable for chemical vapor deposition(CVD) applications. The corresponding noble metal complex is formed by treatment of the FBC ligand with a less volatile metal halide.
    Type: Application
    Filed: November 8, 2002
    Publication date: February 10, 2005
    Inventors: Yun Chi, Yao-Lun Chen, Chao-Shiuan Liu, Yi-Hwa Song, Ying-Hui Lai, Arthur Carty