Patents by Inventor Tzu-Chi Cheng
Tzu-Chi Cheng 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: 11949050Abstract: An LED bulb with a screw base; a cover forming an accommodation space with the screw base; an LED filament located in the accommodation space including a substrate comprising a top surface, a side surface, and an extension direction; a plurality of LED chips disposed on the first top surface; a first electrode arranged on the top surface, electrically connected to the plurality of LED chips; and a first clamp including first and second projecting prongs. The first electrode is clamped by the first and second projecting prongs within the accommodation space. The LED bulb has an imaginary rotational axis not parallel to the extension direction.Type: GrantFiled: September 19, 2022Date of Patent: April 2, 2024Assignees: EPISTAR CORPORATION, KAISTAR LIGHTING (XIAMEN) CO., LTD.Inventors: Tzer-Perng Chen, Tzu-Chi Cheng
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Publication number: 20230142465Abstract: An LED assembly includes an omnidirectional light field. The LED assembly has a transparent substrate with first and second surfaces facing to opposite orientations respectively. LED chips are mounted on the first surface and are electrically interconnected by a circuit. A transparent capsule with a phosphor dispersed therein is formed on the first surface and substantially encloses the circuit and the LED chips. First and second electrode plates are formed on the first or second surface, and electrically connected to the LED chips.Type: ApplicationFiled: December 30, 2022Publication date: May 11, 2023Inventors: Hong-Zhi LIU, Yi-Ting KUO, Tzu-Chi CHENG
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Publication number: 20230012204Abstract: An LED bulb with a screw base; a cover forming an accommodation space with the screw base; an LED filament located in the accommodation space including a substrate comprising a top surface, a side surface, and an extension direction; a plurality of LED chips disposed on the first top surface; a first electrode arranged on the top surface, electrically connected to the plurality of LED chips; and a first clamp including first and second projecting prongs. The first electrode is clamped by the first and second projecting prongs within the accommodation space. The LED bulb has an imaginary rotational axis not parallel to the extension direction.Type: ApplicationFiled: September 19, 2022Publication date: January 12, 2023Inventors: TZER-PERNG CHEN, TZU-CHI CHENG
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Patent number: 11543081Abstract: Disclosed is an LED assembly having an omnidirectional light field. The LED assembly has a transparent substrate with first and second surfaces facing to opposite orientations respectively. LED chips are mounted on the first surface and are electrically interconnected by a circuit. A transparent capsule with a phosphor dispersed therein is formed on the first surface and substantially encloses the circuit and the LED chips. First and second electrode plates are formed on the first or second surface, and electrically connected to the LED chips.Type: GrantFiled: November 6, 2020Date of Patent: January 3, 2023Assignees: EPISTAR CORPORATION, KAISTAR LIGHTING (XIAMEN) CO., LTD.Inventors: Hong-Zhi Liu, Yi-Ting Kuo, Tzu-Chi Cheng
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Patent number: 11450791Abstract: An LED bulb with an LED assembly, including a substrate having a first top surface, longer side surface and shorter side surface; a mount disposed on the first top surface, having a first inner side surface and second inner side surface facing the first inner side surface; a plurality of LED chips on the first top surface, arranged between the first and second inner side surfaces, having a second top surface; an electrode plate formed on the mount, electrically connected to the plurality of LED chips with a third top surface which does not extend beyond the shorter side surface in a top view; and a phosphor layer covering the plurality of LED chips, mount, and electrode plate, without covering the side surfaces; and a cover covering the LED assembly. The third top surface is higher than the second top surface in an elevation based on the first top surface.Type: GrantFiled: February 1, 2021Date of Patent: September 20, 2022Assignees: EPISTAR CORPORATION, KAISTAR LIGHTING (XIAMEN) CO., LTD.Inventors: Tzer-Perng Chen, Tzu-Chi Cheng
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Publication number: 20210151640Abstract: An LED bulb with an LED assembly, including a substrate having a first top surface, longer side surface and shorter side surface; a mount disposed on the first top surface, having a first inner side surface and second inner side surface facing the first inner side surface; a plurality of LED chips on the first top surface, arranged between the first and second inner side surfaces, having a second top surface; an electrode plate formed on the mount, electrically connected to the plurality of LED chips with a third top surface which does not extend beyond the shorter side surface in a top view; and a phosphor layer covering the plurality of LED chips, mount, and electrode plate, without covering the side surfaces; and a cover covering the LED assembly. The third top surface is higher than the second top surface in an elevation based on the first top surface.Type: ApplicationFiled: February 1, 2021Publication date: May 20, 2021Inventors: TZER-PERNG CHEN, TZU-CHI CHENG
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Publication number: 20210054972Abstract: Disclosed is an LED assembly having an omnidirectional light field. The LED assembly has a transparent substrate with first and second surfaces facing to opposite orientations respectively. LED chips are mounted on the first surface and are electrically interconnected by a circuit. A transparent capsule with a phosphor dispersed therein is formed on the first surface and substantially encloses the circuit and the LED chips. First and second electrode plates are formed on the first or second surface, and electrically connected to the LED chips.Type: ApplicationFiled: November 6, 2020Publication date: February 25, 2021Inventors: Hong-Zhi LIU, Yi-Ting KUO, Tzu-Chi CHENG
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Patent number: 10910528Abstract: This disclosure discloses an LED assembly. The LED assembly includes a transparent mount with a top surface and a bottom surface opposite to the top surface, an LED chip arranged on the top surface, an electrode plate, a first phosphor layer having a first phosphor, and a second phosphor layer having a second phosphor, wherein the transparent mount and the electrode plate substantially have a same width. The electrode plate is arranged on an edge of the top surface and electrically connected to the LED chip.Type: GrantFiled: June 10, 2019Date of Patent: February 2, 2021Assignees: EPISTAR CORPORATION, KAISTAR LIGHTING (XIAMEN) CO., LTD.Inventors: Tzer-Perng Chen, Tzu-Chi Cheng
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Patent number: 10724721Abstract: A LED bulb includes a circuit board, a lighting module, an electrical connector, and a lamp shade. The circuit board includes a slot. The lighting module includes a transmissive substrate having a first surface and a second surface opposite to the first surface. The lighting module includes a circuit layer arranged on the first surface, an electrode component arranged on the first surface and electrically connected to the circuit layer, a plurality of LED dies arranged on the first surface and electrically connected to the circuit layer and the electrode component, and the phosphor layer covering the first surface and the second surface. The electrical connector is electrically connected to the circuit board. The lamp shade is associated with the electrical connector.Type: GrantFiled: March 8, 2016Date of Patent: July 28, 2020Assignee: EPISTAR CORPORATIONInventors: Hwa Su, Tzu-Chi Cheng, Hong-Zhi Liu
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Publication number: 20190296198Abstract: This disclosure discloses an LED assembly. The LED assembly includes a transparent mount with a top surface and a bottom surface opposite to the top surface, an LED chip arranged on the top surface, an electrode plate, a first phosphor layer having a first phosphor, and a second phosphor layer having a second phosphor, wherein the transparent mount and the electrode plate substantially have a same width. The electrode plate is arranged on an edge of the top surface and electrically connected to the LED chip.Type: ApplicationFiled: June 10, 2019Publication date: September 26, 2019Inventors: TZER-PERNG CHEN, TZU-CHI CHENG
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Patent number: 10323851Abstract: A UV tube for killing microorganisms in a fluid generally includes a hollow tubular body, a UV isolation layer, and at least one UV light source. The hollow tubular body has an inlet port, an outlet port, and a fluid channel portion between the inlet port and the outlet port. The fluid channel portion has an inner surface. The UV isolation layer is disposed at the inner surface of the hollow tubular body for sheltering the inner surface of the hollow tubular body. The fluid is allowed to flow through the UV isolation layer. The UV light source is provided at the hollow tubular body and/or the UV isolation layer. The UV isolation layer can absorb and/or reflect the ultraviolet light emitting from the UV light source, so that the possibility of the fluid channel portion being irradiated by the UV light can be reduced.Type: GrantFiled: December 22, 2017Date of Patent: June 18, 2019Assignee: Sentec E&E Co., Ltd.Inventors: Jason An-Cheng Huang, Tzu-Chi Cheng
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Patent number: 10319886Abstract: This disclosure discloses an LED assembly. The LED assembly includes a transparent mount with a top surface and a bottom surface opposite to the top surface, an LED chip arranged on the top surface, an electrode plate, a first phosphor layer having a first phosphor, and a second phosphor layer having a second phosphor, wherein the transparent mount and the electrode plate substantially have a same width. The electrode plate is arranged on an edge of the top surface and electrically connected to the LED chip.Type: GrantFiled: April 17, 2018Date of Patent: June 11, 2019Assignees: Epistar Corporation, Kaistar Lighting (Xiamen) Co., Ltd.Inventors: Tzer-Perng Chen, Tzu-Chi Cheng
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Publication number: 20190049129Abstract: A UV tube for killing microorganisms in a fluid generally includes a hollow tubular body, a UV isolation layer, and at least one UV light source. The hollow tubular body has an inlet port, an outlet port, and a fluid channel portion between the inlet port and the outlet port. The fluid channel portion has an inner surface. The UV isolation layer is disposed at the inner surface of the hollow tubular body for sheltering the inner surface of the hollow tubular body. The fluid is allowed to flow through the UV isolation layer. The UV light source is provided at the hollow tubular body and/or the UV isolation layer. The UV isolation layer can absorb and/or reflect the ultraviolet light emitting from the UV light source, so that the possibility of the fluid channel portion being irradiated by the UV light can be reduced.Type: ApplicationFiled: December 22, 2017Publication date: February 14, 2019Inventors: Jason An-Cheng Huang, Tzu-Chi Cheng
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Publication number: 20180233635Abstract: This disclosure discloses an LED assembly. The LED assembly includes a transparent mount with a top surface and a bottom surface opposite to the top surface, an LED chip arranged on the top surface, an electrode plate, a first phosphor layer having a first phosphor, and a second phosphor layer having a second phosphor, wherein the transparent mount and the electrode plate substantially have a same width. The electrode plate is arranged on an edge of the top surface and electrically connected to the LED chip.Type: ApplicationFiled: April 17, 2018Publication date: August 16, 2018Inventors: TZER-PERNG CHEN, TZU-CHI CHENG
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Patent number: 9947839Abstract: This disclosure discloses an LED assembly. The LED assembly includes a transparent mount with a top surface and a bottom surface opposite to the top surface, an LED chip arranged on the top surface, an electrode plate, a first phosphor layer having a first phosphor, and a second phosphor layer having a second phosphor, wherein the transparent mount and the electrode plate substantially have a same width. The electrode plate is arranged on an edge of the top surface and electrically connected to the LED chip.Type: GrantFiled: October 19, 2016Date of Patent: April 17, 2018Assignees: Huga Optotech Inc., Interlight Optotech CorporationInventors: Tzer-Perng Chen, Tzu-Chi Cheng
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Patent number: 9874318Abstract: An LED assembly, comprising: a light-transmissive substrate comprising a surface, a central region and a peripheral region surrounding the central region; a heat dissipation element, wherein a portion of the heat dissipation element is corresponding to the central region of the light-transmissive substrate; a first wavelength conversion layer arranged on the surface of the light-transmissive substrate and corresponding to the peripheral region of the light-transmissive substrate; a plurality of LED elements arranged on the first wavelength conversion layer; a second wavelength conversion layer arranged on the surface of the light-transmissive substrate and covering the plurality of LED elements and the first wavelength conversion layer; a plurality of conductive structures surrounding the plurality of LED elements and electrically connected thereto, wherein the plurality of conductive structures is formed on the surface and separated from each other; and a plurality of electrical contacts electrically connectType: GrantFiled: April 1, 2015Date of Patent: January 23, 2018Assignees: EPISTAR CORPORATION, INTERLIGHT OPTOTECH CORPORATIONInventors: Hwa Su, Tzu Chi Cheng, Hong Zhi Liu, Yu Min Li
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Patent number: 9875996Abstract: The invention relates to a composite substrate for light emitting device and a LED module equipped with the composite substrate for light emitting device. The composite substrate for light emitting device includes a metal substrate, an insulating carrier and an electrode, the metal substrate and the insulating carrier respectively have a front side and a back side that are opposite, the insulating carrier is disposed on the periphery of the metal substrate and connected to the metal substrate, the electrode is disposed on the insulating carrier, the electrode penetrates the insulating carrier, the electrode has a front side and a back side that are opposite, the heights of the back sides of the insulating carrier and the electrode are less than that of the back side of the metal substrate. The present invention also provides a LED module. The composite substrate for light emitting device can reduce costs.Type: GrantFiled: October 12, 2015Date of Patent: January 23, 2018Assignee: KAISTAR LIGHTING (XIAMEN) CO., LTD.Inventors: Jing-qiong Zhang, Tzu-chi Cheng
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Patent number: 9755113Abstract: A light emitting device includes a base, a first light emitting unit, a second light emitting unit, a light conversion layer and a lens. The base has a first side slot, a second side slot, and a central slot separated from the first side slot and the second side slot, and the first side slot is formed in a separated recess configuration with a long axis and a short axis. The first light emitting unit is installed in the central slot, and the second light emitting unit is installed in the first side slot. The light conversion layer is covered onto the first light emitting unit or the second light emitting unit, and the lens covers the light conversion layer, the central slot, the first side slot, and the second side slot. The first slot and the lens have first similar contour lines in a top view.Type: GrantFiled: June 30, 2016Date of Patent: September 5, 2017Assignee: INTERLIGHT OPTOTECH CORPORATIONInventors: Hsi-Yan Chou, Tzu-Chi Cheng
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Publication number: 20170040504Abstract: This disclosure discloses an LED assembly. The LED assembly includes a transparent mount with a top surface and a bottom surface opposite to the top surface, an LED chip arranged on the top surface, an electrode plate, a first phosphor layer having a first phosphor, and a second phosphor layer having a second phosphor, wherein the transparent mount and the electrode plate substantially have a same width. The electrode plate is arranged on an edge of the top surface and electrically connected to the LED chip.Type: ApplicationFiled: October 19, 2016Publication date: February 9, 2017Inventors: TZER-PERNG CHEN, TZU-CHI CHENG
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Patent number: RE49031Abstract: LED assemblies and related LED light bulbs. An LED assembly has a flexible, transparent substrate, an LED chip on the first surface and electrically connected to two adjacent conductive sections, a first wavelength conversion layer, formed on the first surface to substantially cover the LED chip, and a second wavelength conversion layer formed on the second surface. The flexible, transparent substrate has first and second surfaces opposite to each other, and several conductive sections, which are separately formed on the first surface.Type: GrantFiled: January 5, 2018Date of Patent: April 12, 2022Assignees: EPISTAR CORPORATION, KAISTAR LIGHTING (XIAMEN) CO., LTD.Inventors: Hong-Zhi Liu, Tzu-Chi Cheng