Patents by Inventor Chi-Tsung Lo

Chi-Tsung Lo 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: 8575832
    Abstract: The present invention relates to a field emission display, which includes: a base substrate; a plurality of cathode strips, disposed over the base substrate; an insulating layer, disposed over the cathode strips and having a plurality of openings, therewith the openings corresponding to the cathode strips; a plurality of anode strips, disposed over the insulating layer, where the cathode strips and the anode strips are arranged into a matrix and the anode strips individually have at least one impacted surface; and a plurality of subpixel units, individually including: an emissive region having a phosphor layer disposed over the impacted surface; and at least one emissive protrusion, corresponding to the emissive region and disposed in the openings to electrically connect to the cathode strips and protrude out of the openings. Accordingly, the present invention can enhance light utilization efficiency of a field emission display.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: November 5, 2013
    Assignee: Tatung Company
    Inventors: Tzung-Han Yang, Chi-Tsung Lo
  • Patent number: 8390186
    Abstract: The present invention relates to a field emission planar lighting lamp, which comprises: a base substrate; cathodes disposed on the base substrate; anodes disposed on the base substrate, wherein the cathodes are disposed beside the anodes, each anode has an impacted surface corresponding to the cathodes, and the impacted surface is an inclined plane or a curved plane; a phosphor layer disposed on the impacted surface of the anode; and a front substrate corresponding to the base substrate, wherein the anodes and the cathodes are disposed between the base substrate and the front substrate.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: March 5, 2013
    Assignee: Tatung Company
    Inventors: Tzung-Han Yang, Chi-Tsung Lo
  • Patent number: 8294354
    Abstract: The present invention relates to a field emission light source device, which includes: a base substrate; at least one cathode strip, disposed over the base substrate; at least one emissive protrusion, disposed over the cathode strip and electrically connected to the cathode strip; an insulating layer, disposed over the cathode strip and having at least one opening to allow the emissive protrusion to protrude out of the opening; at least one anode strip, disposed over the insulating layer, where the cathode strip and the anode strip are arranged into an m×n matrix and the at least one anode strip individually has an impacted surface corresponding to the emissive protrude; and a phosphor layer disposed over the impacted surface. Accordingly, the present invention can enhance light utilization efficiency of a field emission light source device.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: October 23, 2012
    Assignee: Tatung Company
    Inventors: Tzung-Han Yang, Chi-Tsung Lo
  • Publication number: 20120153811
    Abstract: The present invention relates to a field emission planar lighting lamp, which comprises: a base substrate; cathodes disposed on the base substrate; anodes disposed on the base substrate, wherein the cathodes are disposed beside the anodes, each anode has an impacted surface corresponding to the cathodes, and the impacted surface is an inclined plane or a curved plane; a phosphor layer disposed on the impacted surface of the anode; and a front substrate corresponding to the base substrate, wherein the anodes and the cathodes are disposed between the base substrate and the front substrate.
    Type: Application
    Filed: April 13, 2011
    Publication date: June 21, 2012
    Applicant: Tatung Company
    Inventors: Tzung-Han Yang, Chi-Tsung Lo
  • Publication number: 20120153808
    Abstract: The present invention relates to a field emission light source device, which includes: a base substrate; at least one cathode strip, disposed over the base substrate; at least one emissive protrusion, disposed over the cathode strip and electrically connected to the cathode strip; an insulating layer, disposed over the cathode strip and having at least one opening to allow the emissive protrusion to protrude out of the opening; at least one anode strip, disposed over the insulating layer, where the cathode strip and the anode strip are arranged into an m×n matrix and the at least one anode strip individually has an impacted surface corresponding to the emissive protrude; and a phosphor layer disposed over the impacted surface. Accordingly, the present invention can enhance light utilization efficiency of a field emission light source device.
    Type: Application
    Filed: April 13, 2011
    Publication date: June 21, 2012
    Applicant: Tatung Company
    Inventors: Tzung-Han Yang, Chi-Tsung Lo
  • Publication number: 20120153809
    Abstract: The present invention relates to a field emission display, which includes: a base substrate; a plurality of cathode strips, disposed over the base substrate; an insulating layer, disposed over the cathode strips and having a plurality of openings, therewith the openings corresponding to the cathode strips; a plurality of anode strips, disposed over the insulating layer, where the cathode strips and the anode strips are arranged into a matrix and the anode strips individually have at least one impacted surface; and a plurality of subpixel units, individually including: an emissive region having a phosphor layer disposed over the impacted surface; and at least one emissive protrusion, corresponding to the emissive region and disposed in the openings to electrically connect to the cathode strips and protrude out of the openings. Accordingly, the present invention can enhance light utilization efficiency of a field emission display.
    Type: Application
    Filed: April 13, 2011
    Publication date: June 21, 2012
    Applicant: Tatung Company
    Inventors: Tzung-Han Yang, Chi-Tsung Lo
  • Publication number: 20110254868
    Abstract: A field emission lamp is disclosed, which comprises: a substrate, a plurality of first field emission units, a plurality of second field emission units, and a driving control unit. The plurality of first field emission units and the plurality of second field emission units are located on the substrate. Besides, the first phosphor layer of the plurality of first field emission units has a first color temperature. The second phosphor layer of the plurality of second field emission units has a second color temperature, wherein the first color temperature is higher than the second color temperature. Moreover, the driving control unit drives and controls the plurality of first field emission units and the plurality of second field emission units based on a predetermined driving mode, for modulating the light emission mode of the field emission lamp and the color temperature of the mixed light emitted from the field emission lamp.
    Type: Application
    Filed: June 8, 2010
    Publication date: October 20, 2011
    Applicant: Tatung Company
    Inventors: Chi-Tsung Lo, Tzung-Han Yang, Yung-Chih Yu, Ching-Hsuang Cheng
  • Patent number: 8016630
    Abstract: A substrate 200 is provided with conductive cathode tracks and a field electron emission material on the tracks. Septa 201 and pillars 202 are provided as raised elements over the emission material. An electrically insulating layer is formed over the emission material and raised elements 201, 202, such that boundary walls are formed in the insulating layer where it contacts the raised elements. The raised elements 201, 202 are then removed, to leave emitter cells and voids for other components, defined by the boundary walls with the insulating layer. A gate electrode is provided over the insulating layer.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: September 13, 2011
    Assignee: Tatung Company
    Inventors: Chi-Tsung Lo, Tzung-Han Yang, Richard Allan Tuck
  • Publication number: 20090140629
    Abstract: A substrate 200 is provided with conductive cathode tracks and a field electron emission material on the tracks. Septa 201 and pillars 202 are provided as raised elements over the emission material. An electrically insulating layer is formed over the emission material and raised elements 201, 202, such that boundary walls are formed in the insulating layer where it contacts the raised elements. The raised elements 201, 202 are then removed, to leave emitter cells and voids for other components, defined by the boundary walls with the insulating layer. A gate electrode is provided over the insulating layer.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 4, 2009
    Applicant: Tatung Company
    Inventors: Chi-Tsung Lo, Tzung-Han Yang, Richard Allan Tuck
  • Publication number: 20090136761
    Abstract: A method for manufacturing a spacer of field emission display panel comprises the following steps: first, providing a substrate; forming a colloid on the substrate; then, forming a patterned photoresist layer on the colloid of the substrate; making the colloid with a pattern the same as the patterned photoresist layer; subsequently, removing the patterned photoresist layer, and hardening the colloid on the substrate; and finally, removing the substrate. The present invention also discloses a base material utilized for the spacer, resulting in a low manufacturing cost of the spacer and achieving economic benefits of large product quantity.
    Type: Application
    Filed: April 18, 2007
    Publication date: May 28, 2009
    Applicant: TATUNG CO., LTD.
    Inventors: Ming-Chung Fan, Chi-Tsung Lo
  • Patent number: 7495374
    Abstract: The present invention provides an electron amplification plate placed between a first substrate and a second substrate of a field emission display device. The electron amplification plate comprises at least two insulating layers for electrical insulation; and at least one conductive electrode layer having plural apertures, wherein the conductive electrode layer is sandwiched between the insulating layers. The surface of the inner wall of the apertures is coated with an electron-amplifying material for multiplying the quantity of electrons as the surface is impacted. The inner wall of each aperture comprises an upper concave wall and a lower concave wall, and the lower concave wall is used for collecting electrons, and the upper concave wall is used for focusing electrons. Thereby, the electron beam emitted from the emitters can be effectively amplified, and color purity of the field emission display device is high.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: February 24, 2009
    Assignees: Tatung Company, Industrial Technology Research Institute
    Inventors: Chi-Tsung Lo, Tzung-Han Yang, Jeng-Maw Chiou, Shy-Wen Lai, Cheng-Feng Lin, Chao-Hsun Lin
  • Publication number: 20060290254
    Abstract: The present invention provides a spacer placed between a top substrate and a bottom substrate for a field emission display device. The spacer comprises at least two insulating layers for electrical insulation; and at least one metal layer sandwiched between the insulating layers, wherein the metal layer has plural apertures for electrons passing therethrough and disturbing pathway of electrons as the electrons impact the apertures.
    Type: Application
    Filed: June 20, 2006
    Publication date: December 28, 2006
    Applicants: Tatung Company, Industrial Technology Research Institute
    Inventors: Chi-Tsung Lo, Tzung-Han Yang, Jeng-Maw Chiou, Shy-Wen Lai, Cheng-Feng Lin, Chao-Hsun Lin
  • Publication number: 20060290252
    Abstract: The present invention provides an electron amplification plate placed between a first substrate and a second substrate of a field emission display device. The electron amplification plate comprises at least two insulating layers for electrical insulation; and at least one conductive electrode layer having plural apertures, wherein the conductive electrode layer is sandwiched between the insulating layers. The surface of the inner wall of the apertures is coated with an electron-amplifying material for multiplying the quantity of electrons as the surface is impacted. The inner wall of each aperture comprises an upper concave wall and a lower concave wall, and the lower concave wall is used for collecting electrons, and the upper concave wall is used for focusing electrons. Thereby, the electron beam emitted from the emitters can be effectively amplified, and color purity of the field emission display device is high.
    Type: Application
    Filed: June 20, 2006
    Publication date: December 28, 2006
    Applicants: Tatung Company, Industrial Technology Research Institute
    Inventors: Chi-Tsung Lo, Tzung-Han Yang, Jeng-Maw Chiou, Shy-Wen Lai, Cheng-Feng Lin, Chao-Hsun Lin