Patents by Inventor Tsai-An Yu

Tsai-An Yu 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: 10520654
    Abstract: An ultra-thin broadband retardation film is provided. The broadband retardation film includes a first retardation film and a second retardation film. The second retardation film is disposed on a side of the first retardation film, wherein an in-plane retardation value Ro of the first retardation film is between 70 nm and 130 nm, an in-plane retardation value Ro of the second retardation film is between 140 nm and 260 nm, and an angle between an optic axis of the first retardation film and an optic axis of the second retardation film is between 35° and 70°.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: December 31, 2019
    Assignee: imat corporation
    Inventors: Tsai-An Yu, Da-Ren Chiou, Shih-Ming Hung, Peng-Shun Tsai, Yi-Ting Chiu, Kuo-Chen Wu, Yi-Chien Chen
  • Publication number: 20190378883
    Abstract: A display device is provided. The display device includes an organic light emitting diode display panel, a blue light brightness enhancement film and a polarizing film. The blue light brightness enhancement film is disposed on the organic light emitting diode display panel. The blue light brightness enhancement film includes a cholesteric liquid crystal layer and a quarter-wave phase retardation film, and the quarter-wave phase retardation film is disposed on the cholesteric liquid crystal layer. The polarizing film is disposed on the blue light brightness enhancement film.
    Type: Application
    Filed: September 4, 2018
    Publication date: December 12, 2019
    Applicant: imat corporation
    Inventors: Tsai-An Yu, Da-Ren Chiou, Shih-Ming Hung, Kuo-Chen Wu, Hui-Mei Liu, Hsiu-Yun Hsu
  • Publication number: 20190204486
    Abstract: An optical film with a conductive function is provided. The optical film with the conductive function includes a liquid crystal optical compensation film and a conductive layer. The conductive layer is disposed on the liquid crystal optical compensation film.
    Type: Application
    Filed: July 9, 2018
    Publication date: July 4, 2019
    Applicant: imat corporation
    Inventors: Tsai-An Yu, Da-Ren Chiou, Shih-Ming Hung, Kuo-Chen Wu, Yi-Chien Chen, Hsiu-Yun Hsu
  • Publication number: 20180313989
    Abstract: A polarizing plate with optical compensation function is provided. The polarizing plate includes a polarizer, a liquid crystal optical compensation film, a first adhesive layer, an adhesion-promoting layer, a protective film, and a second adhesive layer. The liquid crystal optical compensation film is disposed on one side of the polarizer. The first adhesive layer is disposed between the polarizer and the liquid crystal optical compensation film. The adhesion-promoting layer is disposed between the first adhesive layer and the liquid crystal optical compensation film. The protective film is disposed on one side of the polarizer relative to the liquid crystal optical compensation film. The second adhesive layer is disposed between the polarizer and the protective film.
    Type: Application
    Filed: January 11, 2018
    Publication date: November 1, 2018
    Applicant: Imat Corporation
    Inventors: Tsai-An Yu, Da-Ren Chiou, Shih-Ming Hung, Kuo-Chen Wu, Yi-Chien Chen
  • Publication number: 20180017723
    Abstract: An ultra-thin broadband retardation film is provided. The broadband retardation film includes a first retardation film and a second retardation film. The second retardation film is disposed on a side of the first retardation film, wherein an in-plane retardation value Ro of the first retardation film is between 70 nm and 130 nm, an in-plane retardation value Ro of the second retardation film is between 140 nm and 260 nm, and an angle between an optic axis of the first retardation film and an optic axis of the second retardation film is between 35° and 70°.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 18, 2018
    Applicant: imat corporation
    Inventors: Tsai-An Yu, Da-Ren Chiou, Shih-Ming Hung, Peng-Shun Tsai, Yi-Ting Chiu, Kuo-Chen Wu, Yi-Chien Chen
  • Patent number: 7956964
    Abstract: A method for making an optical device includes the steps of: rubbing an orienting film so as to stretch the molecular structure thereof and so as to permit the molecular units of the molecular structure to be aligned along a first axis and to permit the orienting space between each adjacent pair of the molecular units of the molecular structure to be oriented in a direction parallel to a second axis; and forming an optical anisotropical layer on the orienting film by applying a liquid crystal film of rod-like molecules on the orienting film which orients the rod-like molecules by virtue of spatial effect of the molecular units and the orienting spaces.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: June 7, 2011
    Assignee: Far Eastern New Century Corporation
    Inventors: Tsai-An Yu, Pi-Sung Lin, Chih-Jen Chen, Chiu-Fang Huang, Wen-Yi Lin
  • Publication number: 20090190086
    Abstract: A method for making an optical device includes the steps of: rubbing an orienting film so as to stretch the molecular structure thereof and so as to permit the molecular units of the molecular structure to be aligned along a first axis and to permit the orienting space between each adjacent pair of the molecular units of the molecular structure to be oriented in a direction parallel to a second axis; and forming an optical anisotropical layer on the orienting film by applying a liquid crystal film of rod-like molecules on the orienting film which orients the rod-like molecules by virtue of spatial effect of the molecular units and the orienting spaces.
    Type: Application
    Filed: April 7, 2009
    Publication date: July 30, 2009
    Inventors: Tsai-An Yu, Pi-Sung Lin, Chih-Jen Chen, Chiu-Fang Huang, Wen-Yi Lin
  • Patent number: 7532284
    Abstract: A method for making an optical device includes the steps of: rubbing an orienting film so as to stretch the molecular structure thereof and so as to permit the molecular units of the molecular structure to be aligned along a first axis and to permit the orienting space between each adjacent pair of the molecular units of the molecular structure to be oriented in a direction parallel to a second axis; and forming an optical anisotropical layer on the orienting film by applying a liquid crystal film of rod-like molecules on the orienting film which orients the rod-like molecules by virtue of spatial effect of the molecular units and the orienting spaces.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: May 12, 2009
    Assignee: Far Eastern Textile Ltd.
    Inventors: Tsai-An Yu, Pi-Sung Lin, Chih-Jen Chen, Chiu-Fang Huang, Wen-Yi Lin
  • Patent number: 7301594
    Abstract: An optical compensator includes a C-plate adapted to be coupled to a liquid crystal cell and made from a polymer. The C-plate has a layer thickness ranging from 5 to 60 ?m. The polymer is polyvinyl alcohol, has a polymerization degree greater than 2000 and less than 5000, and is cross-linked so that the C-plate has an optical axis substantially parallel to the direction of normally incident light, and so that the C-plate has a plate retardation, along the layer thickness of the C-plate, greater than 60 nm.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: November 27, 2007
    Assignee: Far Eastern Textile Ltd.
    Inventors: Tsai-An Yu, Pi-Sung Lin, Chih-Jen Chen, Chiu-Fang Huang, Wen-Yi Lin
  • Patent number: 7026422
    Abstract: A hydrolytic condensation coating composition includes a silane, an epoxy resin, a hydrolytic condensation catalyst, and a solvent. The weight ratio of the epoxy resin to the silane is 1:0.4˜6. The silane is reactable with the epoxy resin, and is hydrolyzable in the presence of the hydrolytic condensation catalyst to form a three-dimensional stereo-network structure. A hard coat film obtained by coating a plastic substrate with the coating composition, followed by thermo-curing, exhibits high transparency and hardness, and has excellent anti-scratch and chemical-resistant properties. The hard coat film is suitable for use as a surface protective film for displays, polarizers, touch panels, ITO conductive films, other optical elements, and the like.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: April 11, 2006
    Assignee: Far Eastern Textile Ltd.
    Inventors: Yun-Han Chang, Tsai-An Yu, Wen-Chih Lin
  • Publication number: 20060068517
    Abstract: A method for making an optical device includes the steps of: rubbing an orienting film so as to stretch the molecular structure thereof and so as to permit the molecular units of the molecular structure to be aligned along a first axis and to permit the orienting space between each adjacent pair of the molecular units of the molecular structure to be oriented in a direction parallel to a second axis; and forming an optical anisotropical layer on the orienting film by applying a liquid crystal film of rod-like molecules on the orienting film which orients the rod-like molecules by virtue of spatial effect of the molecular units and the orienting spaces.
    Type: Application
    Filed: March 9, 2005
    Publication date: March 30, 2006
    Inventors: Tsai-An Yu, Pi-Sung Lin, Chih-Jen Chen, Chiu-Fang Huang, Wen-Yi Lin
  • Publication number: 20060055854
    Abstract: An optical compensator includes a C-plate adapted to be coupled to a liquid crystal cell and made from a polymer. The C-plate has a layer thickness ranging from 5 to 60 ?m. The polymer is polyvinyl alcohol, has a polymerization degree greater than 2000 and less than 5000, and is cross-linked so that the C-plate has an optical axis substantially parallel to the direction of normally incident light, and so that the C-plate has a plate retardation, along the layer thickness of the C-plate, greater than 60 nm.
    Type: Application
    Filed: January 27, 2005
    Publication date: March 16, 2006
    Applicant: FAR EASTERN TEXTILE LTD.
    Inventors: Tsai-An Yu, Pi-Sung Lin, Chih-Jen Chen, Chiu-Fang Huang, Wen-Yi Lin
  • Publication number: 20040091725
    Abstract: A hydrolytic condensation coating composition includes a silane, an epoxy resin, a hydrolytic condensation catalyst, and a solvent. The weight ratio of the epoxy resin to the silane is 1:0.4˜6. The silane is reactable with the epoxy resin, and is hydrolyzable in the presence of the hydrolytic condensation catalyst to form a three-dimensional stereo-network structure. A hard coat film obtained by coating a plastic substrate with the coating composition, followed by thermo-curing, exhibits high transparency and hardness, and has excellent anti-scratch and chemical-resistant properties. The hard coat film is suitable for use as a surface protective film for displays, polarizers, touch panels, ITO conductive films, other optical elements, and the like.
    Type: Application
    Filed: March 13, 2003
    Publication date: May 13, 2004
    Applicant: Far Eastern Textile Ltd.
    Inventors: Yun-Han Chang, Tsai-An Yu, Wen-Chih Lin
  • Patent number: 5518779
    Abstract: An improved method for preparing copper clad laminates from a copper substrate without a conventional or infrared oven. The method contains the steps of: (a) preparing a precursory coating composition which can be subsequently cured to become polyimide; (b) coating the precursory coating composition on a copper substrate; and (c) exposing the precursory coating composition to an infrared heater provided in an infrared curing apparatus. The infrared heater is selected such that it emits infrared rays of wavelengths correponding to the absorption spectrum of the precursory coating composition. A plurality of infrared heaters can be provided in the infrared curing apparatus, each can be designed to have a different effective heating length and/or operated at a uniquely predetermined surface temperature for optimum energy efficiency.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: May 21, 1996
    Assignee: Industrial Technology Research Institute
    Inventors: Tsai-An Yu, Jing-Pin Pan
  • Patent number: 5372891
    Abstract: An improved polyimide-based coating composition comprising a polyimide upper layer and a polyimide-modified bismaleimide lower layer for use as a coating on metal substrate, such as an electrolytic copper foil. The polyimide are prepared from reactions between diamines, such as p-phenylene diamine and 4-4'-diaminodiphenyl ether, and dianhydrides, such as 3,3',4,4'-benzophenone tetracarboxylic dianhydride and biphenyl-3,3',4,4'-tetracarboxylic dianhydride. The modified bismaleimide can be prepared from reacting an N,N',4,4'-diphenyl bismaleimide with a barbituric acid or its derivative. A double-layered extrusion coating technique having a double-layered extrusion die is utilized to apply the coating composition onto the metal substrate. The final laminated products show improved peel strength between the polyimide coating and the substrate, as well as improved dimensional stability and surface flatness thereof.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: December 13, 1994
    Assignee: Industrial Technology Research Institute
    Inventors: Tsai-An Yu, Jing-Pin Pan, Han-Lung Chen, Jinn-Shing King, Tsung-Hsiung Wang