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).

  • Publication number: 20210242377
    Abstract: 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: Application
    Filed: July 9, 2020
    Publication date: August 5, 2021
    Applicant: Au Optronics Corporation
    Inventors: Yi-Fen Lan, Tsung-Tien Wu
  • Publication number: 20210225820
    Abstract: 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: Application
    Filed: August 11, 2020
    Publication date: July 22, 2021
    Applicant: Au Optronics Corporation
    Inventors: Yi-Fen Lan, Tsung-Tien Wu
  • Patent number: 10910254
    Abstract: 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: Grant
    Filed: August 10, 2018
    Date of Patent: February 2, 2021
    Assignee: Au Optronics Corporation
    Inventors: Yi-Fen Lan, Tsung-Tien Wu
  • Patent number: 10862005
    Abstract: 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: Grant
    Filed: October 4, 2018
    Date of Patent: December 8, 2020
    Assignee: Au Optronics Corporation
    Inventors: Yi-Fen Lan, Chin-Yuan Ho, Tsung-Tien Wu
  • Publication number: 20200028030
    Abstract: 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: Application
    Filed: October 4, 2018
    Publication date: January 23, 2020
    Applicant: Au Optronics Corporation
    Inventors: Yi-Fen Lan, Chin-Yuan Ho, Tsung-Tien Wu
  • Publication number: 20190148213
    Abstract: 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: Application
    Filed: August 10, 2018
    Publication date: May 16, 2019
    Applicant: Au Optronics Corporation
    Inventors: Yi-Fen Lan, Tsung-Tien Wu
  • Publication number: 20190115242
    Abstract: 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: Application
    Filed: October 9, 2018
    Publication date: April 18, 2019
    Applicant: Au Optronics Corporation
    Inventors: Ze-Yu Yen, Yi-Fen Lan, Ho-Cheng Lee, Tsung-Tien Wu
  • Patent number: 10180598
    Abstract: 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: Grant
    Filed: October 26, 2016
    Date of Patent: January 15, 2019
    Assignee: A.U. Vista, Inc.
    Inventor: Yi-Fen Lan
  • Patent number: 10151953
    Abstract: 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: Grant
    Filed: February 22, 2017
    Date of Patent: December 11, 2018
    Assignee: A. U. Vista, Inc.
    Inventor: Yi-Fen Lan
  • Patent number: 10096292
    Abstract: 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: Grant
    Filed: February 26, 2016
    Date of Patent: October 9, 2018
    Assignees: 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
  • Publication number: 20180239203
    Abstract: 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: Application
    Filed: February 22, 2017
    Publication date: August 23, 2018
    Inventor: Yi-Fen LAN
  • Patent number: 10036928
    Abstract: 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: Grant
    Filed: March 2, 2017
    Date of Patent: July 31, 2018
    Assignee: Au Optronics Corporation
    Inventors: Yi-Fen Lan, Pu-Jung Huang, Cheng-Yeh Tsai
  • Publication number: 20180113362
    Abstract: 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: Application
    Filed: October 26, 2016
    Publication date: April 26, 2018
    Inventor: Yi-Fen LAN
  • Patent number: 9927666
    Abstract: 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: Grant
    Filed: April 20, 2016
    Date of Patent: March 27, 2018
    Assignees: 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
  • Publication number: 20170307942
    Abstract: 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: Application
    Filed: April 20, 2016
    Publication date: October 26, 2017
    Inventors: Yi-Fen Lan, Daming Xu, Cheng-Yeh Tsai, Norio Sugiura, Shin-Tson Wu
  • Publication number: 20170255035
    Abstract: 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: Application
    Filed: March 2, 2017
    Publication date: September 7, 2017
    Applicant: Au Optronics Corporation
    Inventors: Yi-Fen Lan, Pu-Jung Huang, Cheng-Yeh Tsai
  • Publication number: 20170249917
    Abstract: 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: Application
    Filed: February 26, 2016
    Publication date: August 31, 2017
    Inventors: Hai-Wei Chen, Shin-Tson Wu, Yi-Fen Lan, Cheng-Yeh Tsai
  • Patent number: 9664945
    Abstract: A display apparatus including a display panel, a first polarizer and a second polarizer is provided. The display panel includes a pixel array substrate, an opposite substrate and a display medium. The pixel array substrate includes a plurality of pixel units. Each pixel unit includes a first electrode and a second electrode. The first electrode and the second electrode are alternately arranged and a lateral electric field is existed between the first electrode and the second electrode. The opposite substrate is disposed opposite to the pixel array substrate. The display medium is disposed between the pixel array substrate and the opposite substrate. The first polarizer is disposed on the pixel array substrate. The second polarizer is disposed on the opposite substrate. An included angle between an optical axis of the first polarizer and an optical axis of the second polarizer is 90°±?, and ? is 1° to 9°.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: May 30, 2017
    Assignees: Au Optronics Corporation, University of Central Florida Research Foundation, Inc.
    Inventors: Yi-Fan Liu, Shin-Tson Wu, Yi-Fen Lan, Cheng-Yeh Tsai
  • Publication number: 20170097530
    Abstract: A blue phase liquid crystal display having a first substrate, a second substrate and a liquid crystal layer disposed therebetween and a photo-conversion means disposed between the second substrate and the liquid crystal layer is provided.
    Type: Application
    Filed: October 1, 2015
    Publication date: April 6, 2017
    Inventors: Tzu-Yi TSAO, Cheng-Yeh TSAI, Fang-Cheng YU, Yi-Fen LAN, Yi-Ting CHEN, Pu-Jung HUANG, Szu-Yu LIN
  • Patent number: 9121999
    Abstract: An optical film and a display device having the same are provided. The optical film has a light input face, a light output face opposite to the light input face, and a light-output structure disposed on the light output face. The light-output structure includes a plurality of light output microstructures such as prisms disposed side by side along a first direction on the light output face. Each prism has a first quadrilateral cross section parallel to the first direction. A first side of the quadrilateral cross section is connected to the light output face and includes a first angle with the light output face, wherein the first angles of the prisms continuously arranged have angle values varying in a periodic manner.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: September 1, 2015
    Assignees: AU OPTRONICS CORPORATION, UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION INC.
    Inventors: Jin Yan, Da-Ming Xu, Hui-Chuan Cheng, Shin-Tson Wu, Yi-Fen Lan, Cheng-Yeh Tsai