Patents by Inventor Kui-Chiang Liu

Kui-Chiang Liu 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: 8316534
    Abstract: A method for packaging an airtight multi-layer array type LED is disclosed. The method includes: integrally forming a metal substrate with an airtight metal frame surrounding an accommodating space; forming a light outlet platform surrounding a light outlet opening on a bottom of the accommodating space; forming two horizontal sealing through holes in the airtight metal frame, wherein each sealing through hole has one lead frame inserted therethrough, and all interstitial space in the two horizontal sealing through holes is completely sealed with a sealing material; disposing the optical units and optical components in the accommodating space; sequentially forming a dice protection layer, a fluorescent layer, and a silicone layer on the LED dices; and installing an optical glass cover on the top surface of the airtight metal frame to seal the packaging structure of the present invention.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: November 27, 2012
    Assignee: GEM Weltronics TWN Corporation
    Inventors: Jon-Fwu Hwu, Yung-Fu Wu, Kui-Chiang Liu
  • Publication number: 20120218627
    Abstract: An optical lens assembly having a fluorescent layer is disclosed, which includes a partition frame with a partition ring protruding inwardly from an inner wall surface of the partition frame, two optical lenses, and a fluorescent layer, wherein a slot space is defined by the two optical lenses and the partition ring of the partition frame, and the fluorescent layer is accommodated within the slot space. The top optical lens can be a flat slab lens, or a convex lens. When the optical lens assembly having a fluorescent layer is used in the optical device, the moisture can be prevented from entering the fluorescent layer, and thus the optical performance of the fluorescent layer can be maintained over a long period.
    Type: Application
    Filed: February 25, 2011
    Publication date: August 30, 2012
    Inventors: JON-FWU HWU, Yung-Fu Wu, Kui-Chiang Liu
  • Patent number: 8253330
    Abstract: An airtight multi-layer array type LED is disclosed, which comprises a metal substrate with an airtight metal frame formed thereon, and the metal substrate is integrally formed with the airtight metal frame, and an airtight sealing frame slot is formed around the upper surface of the airtight metal frame, the airtight metal frame is installed with two sets of sealing through hole pairs accommodating the lead frames. The interior of the airtight metal frame can be installed with packaging materials or optical components. The sealing holes are sealed with a glass or ceramic material. A fluorescent layer is formed on a silica gel layer, wherein the fluorescent layer can also be installed inside a silica glass package cover. The silica glass package cover is installed on the top surface of the airtight metal frame, and the silica glass package cover is engaged and sealed to a sealing rack.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: August 28, 2012
    Assignee: Gem Weltronics TWN Corporation
    Inventors: Jon-Fwu Hwu, Yung-Fu Wu, Kui-Chiang Liu
  • Patent number: 8248701
    Abstract: An optical lens assembly having a fluorescent layer is disclosed, which includes a partition frame with a partition ring protruding inwardly from an inner wall surface of the partition frame, two optical lenses, and a fluorescent layer, wherein a slot space is defined by the two optical lenses and the partition ring of the partition frame, and the fluorescent layer is accommodated within the slot space. The top optical lens can be a flat slab lens, or a convex lens. When the optical lens assembly having a fluorescent layer is used in the optical device, the moisture can be prevented from entering the fluorescent layer, and thus the optical performance of the fluorescent layer can be maintained over a long period.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: August 21, 2012
    Assignee: Gem Weltronics TWN Corporation
    Inventors: Jon-Fwu Hwu, Yung-Fu Wu, Kui-Chiang Liu
  • Patent number: 8247969
    Abstract: An optical lens having a fluorescent layer is provided. The optical lens is adapted for being employed in an LED packaging structure. The optical lens includes a substrate, at least one lens body, a lens shade, and a packaging member. The substrate is positioned at a bottommost side of the packaging structure, and the lens shade is positioned at a topmost side of the packaging structure. The lens body is positioned over the substrate and beneath the lens shade. A plurality of light emitting units are disposed on the substrate. The packaging member is adapted for packaging the substrate and the lens shade. The lens body is secured by the packing member so as to be positioned over the light emitting units. The lens body includes a fluorescent layer buried inside the lens body, and the lens body is positioned apart from the light emitting units for a certain distance.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: August 21, 2012
    Assignee: Gem Weltronics TWN Corporation
    Inventors: Jon-Fwu Hwu, Yung-Fu Wu, Kui-Chiang Liu
  • Publication number: 20120186726
    Abstract: A method of filling and sealing a fluorescent layer in a slot space defined by two optical lenses and a partition ring is disclosed, in which a slot space is defined by two optical glasses and a partition frame having a partition ring on the inner wall surface. The partition frame is installed with two slots diametrically opposite to each other, and the slot space is evacuated to allow filling of a fluorescent material, and then the two slots are sealed so that the moisture is prevented from permeating into the fluorescent layer, and thus the optical performance can be maintained over a long period.
    Type: Application
    Filed: January 26, 2011
    Publication date: July 26, 2012
    Inventors: JON-FWU HWU, Yung-Fu Wu, Kui-Chiang Liu
  • Publication number: 20120186077
    Abstract: A method for packaging an airtight multi-layer array type LED is disclosed. The method includes: integrally forming a metal substrate with an airtight metal frame surrounding an accommodating space; forming a light outlet platform surrounding a light outlet opening on a bottom of the accommodating space; forming two sets of sealing through hole pairs in the airtight metal frame, wherein each set of the sealing through hole pairs has one lead frame inserted therethrough, and all interstitial space in the two sets of the sealing through hole pairs is completely sealed with a sealing material; disposing the optical units and optical components in the accommodating space; sequentially forming a dice protection layer, a fluorescent layer, and a silicone layer on the LED dices; and installing an optical glass cover on the top surface of the airtight metal frame to seal the packaging structure of the present invention.
    Type: Application
    Filed: January 26, 2011
    Publication date: July 26, 2012
    Inventors: JON-FWU HWU, Yung-Fu Wu, Kui-Chiang Liu
  • Publication number: 20120133268
    Abstract: An airtight multi-layer array type LED is disclosed, which comprises a metal substrate with an airtight metal frame formed thereon, and the metal substrate is integrally formed with the airtight metal frame, and an airtight sealing frame slot is formed around the upper surface of the airtight metal frame, the airtight metal frame is installed with two sets of sealing through hole pairs accommodating the lead frames. The interior of the airtight metal frame can be installed with packaging materials or optical components. The sealing holes are sealed with a glass or ceramic material. A fluorescent layer is formed on a silica gel layer, wherein the fluorescent layer can also be installed inside a silica glass package cover. The silica glass package cover is installed on the top surface of the airtight metal frame, and the silica glass package cover is engaged and sealed to a sealing rack.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Inventors: Jon-Fwu Hwu, Yung-Fu Wu, Kui-Chiang Liu
  • Publication number: 20120074837
    Abstract: An optical lens having a fluorescent layer is provided. The optical lens is adapted for being employed in an LED packaging structure. The optical lens includes a substrate, at least one lens body, a lens shade, and a packaging member. The substrate is positioned at a bottommost side of the packaging structure, and the lens shade is positioned at a topmost side of the packaging structure. The lens body is positioned over the substrate and beneath the lens shade. A plurality of light emitting units are disposed on the substrate. The packaging member is adapted for packaging the substrate and the lens shade. The lens body is secured by the packing member so as to be positioned over the light emitting units. The lens body includes a fluorescent layer buried inside the lens body, and the lens body is positioned apart from the light emitting units for a certain distance.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 29, 2012
    Inventors: Jon-Fwu Hwu, Yung-Fu Wu, Kui-Chiang Liu
  • Publication number: 20120057343
    Abstract: An illuminating apparatus having a heat dissipation base and a multilayer array-type LED module is provided. The multilayer array-type LED module serves as a light source, and a heat dissipation element is provided. The multilayer array-type LED module is featured with a high luminescent efficiency and consumes less power, and the heat dissipation element is adapted for dissipating the heat generated by the multilayer array-type LED module by natural air convection. The combination of the multilayer array-type LED module and the heat dissipation element achieves a better performance of the illuminating apparatus, and can be conveniently further combined with other lamps, or even customized for satisfying different requirements and demands.
    Type: Application
    Filed: September 7, 2010
    Publication date: March 8, 2012
    Applicant: GEM WELTRONICS TWN CORPORATION
    Inventors: Jon-Fwu Hwu, Yung-Fu Wu, Kui-Chiang Liu