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).
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Patent number: 8575832Abstract: 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: GrantFiled: April 13, 2011Date of Patent: November 5, 2013Assignee: Tatung CompanyInventors: Tzung-Han Yang, Chi-Tsung Lo
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Patent number: 8390186Abstract: 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: GrantFiled: April 13, 2011Date of Patent: March 5, 2013Assignee: Tatung CompanyInventors: Tzung-Han Yang, Chi-Tsung Lo
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Patent number: 8294354Abstract: 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: GrantFiled: April 13, 2011Date of Patent: October 23, 2012Assignee: Tatung CompanyInventors: Tzung-Han Yang, Chi-Tsung Lo
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Publication number: 20120153811Abstract: 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: ApplicationFiled: April 13, 2011Publication date: June 21, 2012Applicant: Tatung CompanyInventors: Tzung-Han Yang, Chi-Tsung Lo
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Publication number: 20120153808Abstract: 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: ApplicationFiled: April 13, 2011Publication date: June 21, 2012Applicant: Tatung CompanyInventors: Tzung-Han Yang, Chi-Tsung Lo
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Publication number: 20120153809Abstract: 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: ApplicationFiled: April 13, 2011Publication date: June 21, 2012Applicant: Tatung CompanyInventors: Tzung-Han Yang, Chi-Tsung Lo
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Publication number: 20110254868Abstract: 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: ApplicationFiled: June 8, 2010Publication date: October 20, 2011Applicant: Tatung CompanyInventors: Chi-Tsung Lo, Tzung-Han Yang, Yung-Chih Yu, Ching-Hsuang Cheng
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Patent number: 8016630Abstract: 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: GrantFiled: December 3, 2008Date of Patent: September 13, 2011Assignee: Tatung CompanyInventors: Chi-Tsung Lo, Tzung-Han Yang, Richard Allan Tuck
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Publication number: 20090140629Abstract: 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: ApplicationFiled: December 3, 2008Publication date: June 4, 2009Applicant: Tatung CompanyInventors: Chi-Tsung Lo, Tzung-Han Yang, Richard Allan Tuck
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Publication number: 20090136761Abstract: 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: ApplicationFiled: April 18, 2007Publication date: May 28, 2009Applicant: TATUNG CO., LTD.Inventors: Ming-Chung Fan, Chi-Tsung Lo
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Patent number: 7495374Abstract: 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: GrantFiled: June 20, 2006Date of Patent: February 24, 2009Assignees: Tatung Company, Industrial Technology Research InstituteInventors: Chi-Tsung Lo, Tzung-Han Yang, Jeng-Maw Chiou, Shy-Wen Lai, Cheng-Feng Lin, Chao-Hsun Lin
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Publication number: 20060290254Abstract: 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: ApplicationFiled: June 20, 2006Publication date: December 28, 2006Applicants: Tatung Company, Industrial Technology Research InstituteInventors: Chi-Tsung Lo, Tzung-Han Yang, Jeng-Maw Chiou, Shy-Wen Lai, Cheng-Feng Lin, Chao-Hsun Lin
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Publication number: 20060290252Abstract: 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: ApplicationFiled: June 20, 2006Publication date: December 28, 2006Applicants: Tatung Company, Industrial Technology Research InstituteInventors: Chi-Tsung Lo, Tzung-Han Yang, Jeng-Maw Chiou, Shy-Wen Lai, Cheng-Feng Lin, Chao-Hsun Lin