Patents by Inventor Yi-Fen Lan
Yi-Fen Lan 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: 11600509Abstract: A micro pick-up array used to pick up a micro device is provided. The micro pick-up array includes a substrate, a pick-up structure, and a soft polymer layer. The pick-up structure is located on the substrate. The pick-up structure includes a cured photo sensitive material. The soft polymer layer covers the pick-up structure. A manufacturing method of a micro pick-up array is also provided.Type: GrantFiled: October 9, 2018Date of Patent: March 7, 2023Assignee: Au Optronics CorporationInventors: Ze-Yu Yen, Yi-Fen Lan, Ho-Cheng Lee, Tsung-Tien Wu
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Patent number: 11393800Abstract: A display device and a manufacturing method of a display device are provided. The display device includes a substrate, a plurality of first light-emitting elements, and at least one second light-emitting element. The first light-emitting elements are arranged on the substrate. A plurality of first electrodes are provided on a surface of each of the first light-emitting elements facing away from the substrate. The second light-emitting element is disposed on the substrate. A plurality of second electrodes are provided on a surface of the second light-emitting element facing away from the substrate. An orthographic projection of the second light-emitting element on the substrate partially overlaps orthographic projections of the first light-emitting elements on the substrate.Type: GrantFiled: August 11, 2020Date of Patent: July 19, 2022Assignee: Au Optronics CorporationInventors: Yi-Fen Lan, Tsung-Tien Wu
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Patent number: 11362244Abstract: A light-emitting diode display having sub-pixel regions is provided. Each of the sub-pixel region includes a substrate, first and second electrodes, a light-emitting diode, and at least one blocking wall. The substrate has an active device. The first and second electrodes are separately disposed on the substrate. The first electrode is electrically connected to the active device, and a horizontal distance between the first and second electrodes is W1. The light-emitting diode is disposed on the substrate and includes a semiconductor stack, and first and second pads. The first pad contacts the first electrode, the second pad contacts the second electrode, and a maximum thickness of the semiconductor stack is H1. The blocking wall is disposed on the substrate and located between the first and second pads to prevent a contact therebetween. A height of the blocking wall is H2 and a width thereof is W2. H2?½H1, and W2?W1.Type: GrantFiled: July 9, 2020Date of Patent: June 14, 2022Assignee: Au Optronics CorporationInventors: Yi-Fen Lan, Tsung-Tien Wu
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Publication number: 20210242377Abstract: A light-emitting diode display having sub-pixel regions is provided. Each of the sub-pixel region includes a substrate, first and second electrodes, a light-emitting diode, and at least one blocking wall. The substrate has an active device. The first and second electrodes are separately disposed on the substrate. The first electrode is electrically connected to the active device, and a horizontal distance between the first and second electrodes is W1. The light-emitting diode is disposed on the substrate and includes a semiconductor stack, and first and second pads. The first pad contacts the first electrode, the second pad contacts the second electrode, and a maximum thickness of the semiconductor stack is H1. The blocking wall is disposed on the substrate and located between the first and second pads to prevent a contact therebetween. A height of the blocking wall is H2 and a width thereof is W2. H2?½H1, and W2?W1.Type: ApplicationFiled: July 9, 2020Publication date: August 5, 2021Applicant: Au Optronics CorporationInventors: Yi-Fen Lan, Tsung-Tien Wu
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Publication number: 20210225820Abstract: A display device and a manufacturing method of a display device are provided. The display device includes a substrate, a plurality of first light-emitting elements, and at least one second light-emitting element. The first light-emitting elements are arranged on the substrate. A plurality of first electrodes are provided on a surface of each of the first light-emitting elements facing away from the substrate. The second light-emitting element is disposed on the substrate. A plurality of second electrodes are provided on a surface of the second light-emitting element facing away from the substrate. An orthographic projection of the second light-emitting element on the substrate partially overlaps orthographic projections of the first light-emitting elements on the substrate.Type: ApplicationFiled: August 11, 2020Publication date: July 22, 2021Applicant: Au Optronics CorporationInventors: Yi-Fen Lan, Tsung-Tien Wu
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Patent number: 10910254Abstract: A transfer device including a first electrode set, a second electrode set, a shielding element, a driving circuit and an elastomer is provided. The first electrode set includes a first electrode configured to receive a first voltage and a second electrode configured to receive a second voltage and structurally separated from the first electrode, wherein a voltage difference exists between the first voltage and the second voltage. The second electrode set disposed adjacent to the first electrode set includes a third electrode configured to receive a third voltage and a fourth electrode configured to receive a fourth voltage and structurally separated from the third electrode, wherein a voltage difference exists between the third voltage and the fourth voltage. The shielding element is disposed on a substrate and located between the first electrode set and the second electrode set. The driving circuit is electrically connected to the first electrode set and the second electrode set.Type: GrantFiled: August 10, 2018Date of Patent: February 2, 2021Assignee: Au Optronics CorporationInventors: Yi-Fen Lan, Tsung-Tien Wu
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Patent number: 10862005Abstract: A light emitting device includes a substrate, an adhesion layer, a micro light emitting device (?LED), a first conductive layer, and a second conductive layer. A light emitting surface of the ?LED is away from the substrate. The ?LED includes a first semiconductive layer, a second semiconductive layer, a tether layer, a first electrode, and a second electrode. The tether layer covers a portion of sidewalls of the first semi-conductive layer, a portion of a bottom surface of the first semi-conductive layer, sidewalls of the second semiconductive layer, and a portion of a bottom surface of the second semiconductive layer. The first electrode and the second electrode are respectively electrically connected to the first semiconductive layer and the second semiconductive layer. The first conductive layer and the second conductive layer are respectively electrically connected to the first electrode and the second electrode.Type: GrantFiled: October 4, 2018Date of Patent: December 8, 2020Assignee: Au Optronics CorporationInventors: Yi-Fen Lan, Chin-Yuan Ho, Tsung-Tien Wu
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Publication number: 20200028030Abstract: A light emitting device includes a substrate, an adhesion layer, a micro light emitting device (?LED), a first conductive layer, and a second conductive layer. A light emitting surface of the ?LED is away from the substrate. The ?LED includes a first semiconductive layer, a second semiconductive layer, a tether layer, a first electrode, and a second electrode. The tether layer covers a portion of sidewalls of the first semi-conductive layer, a portion of a bottom surface of the first semi-conductive layer, sidewalls of the second semiconductive layer, and a portion of a bottom surface of the second semiconductive layer. The first electrode and the second electrode are respectively electrically connected to the first semiconductive layer and the second semiconductive layer. The first conductive layer and the second conductive layer are respectively electrically connected to the first electrode and the second electrode.Type: ApplicationFiled: October 4, 2018Publication date: January 23, 2020Applicant: Au Optronics CorporationInventors: Yi-Fen Lan, Chin-Yuan Ho, Tsung-Tien Wu
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Publication number: 20190148213Abstract: A transfer device including a first electrode set, a second electrode set, a shielding element, a driving circuit and an elastomer is provided. The first electrode set includes a first electrode configured to receive a first voltage and a second electrode configured to receive a second voltage and structurally separated from the first electrode, wherein a voltage difference exists between the first voltage and the second voltage. The second electrode set disposed adjacent to the first electrode set includes a third electrode configured to receive a third voltage and a fourth electrode configured to receive a fourth voltage and structurally separated from the third electrode, wherein a voltage difference exists between the third voltage and the fourth voltage. The shielding element is disposed on a substrate and located between the first electrode set and the second electrode set. The driving circuit is electrically connected to the first electrode set and the second electrode set.Type: ApplicationFiled: August 10, 2018Publication date: May 16, 2019Applicant: Au Optronics CorporationInventors: Yi-Fen Lan, Tsung-Tien Wu
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Publication number: 20190115242Abstract: A micro pick-up array used to pick up a micro device is provided. The micro pick-up array includes a substrate, a pick-up structure, and a soft polymer layer. The pick-up structure is located on the substrate. The pick-up structure includes a cured photo sensitive material. The soft polymer layer covers the pick-up structure. A manufacturing method of a micro pick-up array is also provided.Type: ApplicationFiled: October 9, 2018Publication date: April 18, 2019Applicant: Au Optronics CorporationInventors: Ze-Yu Yen, Yi-Fen Lan, Ho-Cheng Lee, Tsung-Tien Wu
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Patent number: 10180598Abstract: An in-plane switching liquid crystal display having a plurality of protrude electrodes of a special shape is disclosed. Each of the protrusion electrodes has a protrusion body with a surface coated with an electrically conductive material. The protrusion body has flat side located on the lower substrate of the liquid crystal display, defining the basewidth of the protrusion electrodes. The protrusion body has a top portion with a round head and a bottom portion with a waist portion, smaller than the basewidth. It has been found that, the round head of the top portion and the waist portion of the bottom portion can improve the efficiency of the optical transmissivity of the liquid crystal layer as well the contrast between the bright state and the dark state of the display.Type: GrantFiled: October 26, 2016Date of Patent: January 15, 2019Assignee: A.U. Vista, Inc.Inventor: Yi-Fen Lan
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Patent number: 10151953Abstract: An in-plane switching liquid crystal display has a plurality of protrusion electrodes. Each of the protrusion electrodes has a protrusion body with a surface coated with an electrically conductive layer made from a metal oxide. An adhesion-enhancement medium is provided between the electrically conductive layer and the surface of the protrusion body. The adhesion-enhancement medium comprises a metal such as aluminum or molybdenum or a metal alloy containing molybdenum and at least one of niobium, tantalum, titanium, zirconium, tungsten, aluminum and nitride or a metal alloy containing aluminum and at least one of niobium, tantalum, titanium, zirconium, tungsten, molybdenun and nitride. The protrusion body can have the shape of a rectangle, triangle, bell, rectangle with a round top, or a cross sectional area having a top portion with a round or flat head and a bottom portion with a waist portion, smaller than the basewidth.Type: GrantFiled: February 22, 2017Date of Patent: December 11, 2018Assignee: A. U. Vista, Inc.Inventor: Yi-Fen Lan
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Patent number: 10096292Abstract: Liquid crystal display (LCD) systems and related methods with pixel elements driven at different frequencies are provided. A representative LCD system includes: a plurality of pixel elements arranged in an array, each of the plurality of pixel elements having a first sub-region and a second sub-region; a low-frequency driving circuit operative to drive each of the first sub-regions; and a high-frequency driving circuit operative to drive each of the second sub-regions at a driving frequency different than a driving frequency of the low-frequency driving circuits; wherein the first sub-regions exhibit a different size than the second sub-regions.Type: GrantFiled: February 26, 2016Date of Patent: October 9, 2018Assignees: A.U. VISTA INC., THE UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.Inventors: Hai-Wei Chen, Shin-Tson Wu, Yi-Fen Lan, Cheng-Yeh Tsai
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Publication number: 20180239203Abstract: An in-plane switching liquid crystal display has a plurality of protrusion electrodes. Each of the protrusion electrodes has a protrusion body with a surface coated with an electrically conductive layer made from a metal oxide. An adhesion-enhancement medium is provided between the electrically conductive layer and the surface of the protrusion body. The adhesion-enhancement medium comprises a metal such as aluminum or molybdenum or a metal alloy containing molybdenum and at least one of niobium, tantalum, titanium, zirconium, tungsten, aluminum and nitride or a metal alloy containing aluminum and at least one of niobium, tantalum, titanium, zirconium, tungsten, molybdenun and nitride. The protrusion body can have the shape of a rectangle, triangle, bell, rectangle with a round top, or a cross sectional area having a top portion with a round or flat head and a bottom portion with a waist portion, smaller than the basewidth.Type: ApplicationFiled: February 22, 2017Publication date: August 23, 2018Inventor: Yi-Fen LAN
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Patent number: 10036928Abstract: A liquid crystal display (LCD) panel includes a first substrate, electrode patterns, a second substrate, and a liquid crystal (LC) layer. The electrode patterns are located on the first substrate, and a lateral electric field is generated via the electrode patterns according to a driving voltage. The second substrate is located opposite to the first substrate. The LC layer is located between the first and second substrates and includes a voltage driven LC layer and an induced LC layer. The voltage driven LC layer is located on the electrode patterns and is driven by the driving voltage to be optically anisotropic or optically isotropic. The induced LC layer is located between the voltage driven LC layer and the second substrate and induced to be optically anisotropic when the voltage driven LC layer is driven to be optically anisotropic. A thickness of the LC layer is larger than 4 ?m.Type: GrantFiled: March 2, 2017Date of Patent: July 31, 2018Assignee: Au Optronics CorporationInventors: Yi-Fen Lan, Pu-Jung Huang, Cheng-Yeh Tsai
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Publication number: 20180113362Abstract: An in-plane switching liquid crystal display having a plurality of protrude electrodes of a special shape is disclosed. Each of the protrusion electrodes has a protrusion body with a surface coated with an electrically conductive material. The protrusion body has flat side located on the lower substrate of the liquid crystal display, defining the basewidth of the protrusion electrodes. The protrusion body has a top portion with a round head and a bottom portion with a waist portion, smaller than the basewidth. It has been found that, the round head of the top portion and the waist portion of the bottom portion can improve the efficiency of the optical transmissivity of the liquid crystal layer as well the contrast between the bright state and the dark state of the display.Type: ApplicationFiled: October 26, 2016Publication date: April 26, 2018Inventor: Yi-Fen LAN
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Patent number: 9927666Abstract: A representative LCD system includes: liquid crystal material disposed between first and second substrates; protrusions supported by the first substrate and arranged in an array, each of the protrusions extending from a base; first pixel electrodes, with a corresponding one of the first pixel electrodes being positioned adjacent the base of a corresponding one of the protrusions; first common electrodes, with a corresponding one of the first common electrodes being positioned adjacent the base of a corresponding one of the protrusions such that each of the protrusions is positioned between one of the first pixel electrodes and one of the first common electrodes; second pixel electrodes, with a corresponding one of the second pixel electrodes being positioned on a corresponding one of the protrusions; and second common electrodes, with a corresponding one of the second common electrodes being positioned on a corresponding one of the protrusions.Type: GrantFiled: April 20, 2016Date of Patent: March 27, 2018Assignees: a.u. Vista Inc., The University of Central Florida Research Foundation, Inc.Inventors: Yi-Fen Lan, Daming Xu, Cheng-Yeh Tsai, Norio Sugiura, Shin-Tson Wu
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Publication number: 20170307942Abstract: A representative LCD system includes: liquid crystal material disposed between first and second substrates; protrusions supported by the first substrate and arranged in an array, each of the protrusions extending from a base; first pixel electrodes, with a corresponding one of the first pixel electrodes being positioned adjacent the base of a corresponding one of the protrusions; first common electrodes, with a corresponding one of the first common electrodes being positioned adjacent the base of a corresponding one of the protrusions such that each of the protrusions is positioned between one of the first pixel electrodes and one of the first common electrodes; second pixel electrodes, with a corresponding one of the second pixel electrodes being positioned on a corresponding one of the protrusions; and second common electrodes, with a corresponding one of the second common electrodes being positioned on a corresponding one of the protrusions.Type: ApplicationFiled: April 20, 2016Publication date: October 26, 2017Inventors: Yi-Fen Lan, Daming Xu, Cheng-Yeh Tsai, Norio Sugiura, Shin-Tson Wu
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Publication number: 20170255035Abstract: A liquid crystal display (LCD) panel includes a first substrate, electrode patterns, a second substrate, and a liquid crystal (LC) layer. The electrode patterns are located on the first substrate, and a lateral electric field is generated via the electrode patterns according to a driving voltage. The second substrate is located opposite to the first substrate. The LC layer is located between the first and second substrates and includes a voltage driven LC layer and an induced LC layer. The voltage driven LC layer is located on the electrode patterns and is driven by the driving voltage to be optically anisotropic or optically isotropic. The induced LC layer is located between the voltage driven LC layer and the second substrate and induced to be optically anisotropic when the voltage driven LC layer is driven to be optically anisotropic. A thickness of the LC layer is larger than 4 ?m.Type: ApplicationFiled: March 2, 2017Publication date: September 7, 2017Applicant: Au Optronics CorporationInventors: Yi-Fen Lan, Pu-Jung Huang, Cheng-Yeh Tsai
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Publication number: 20170249917Abstract: Liquid crystal display (LCD) systems and related methods with pixel elements driven at different frequencies are provided. A representative LCD system includes: a plurality of pixel elements arranged in an array, each of the plurality of pixel elements having a first sub-region and a second sub-region; a low-frequency driving circuit operative to drive each of the first sub-regions; and a high-frequency driving circuit operative to drive each of the second sub-regions at a driving frequency different than a driving frequency of the low-frequency driving circuits; wherein the first sub-regions exhibit a different size than the second sub-regions.Type: ApplicationFiled: February 26, 2016Publication date: August 31, 2017Inventors: Hai-Wei Chen, Shin-Tson Wu, Yi-Fen Lan, Cheng-Yeh Tsai