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    FORMING THIN FILM VERTICAL LIGHT EMITTING DIODES
    61.
    发明申请
    FORMING THIN FILM VERTICAL LIGHT EMITTING DIODES 审中-公开
    形成薄膜垂直发光二极管

    公开(公告)号：US20140170792A1

    公开(公告)日：2014-06-19

    申请号：US14103464

    申请日：2013-12-11

    Applicant: Nthdegree Technologies Worldwide Inc.

    Inventor： Bradley S. Oraw

    IPC: H01L33/24 ,  H01L33/08

    CPC classification number: H01L33/0079 ,  H01L33/0095

    Abstract: A thin film vertical light emitting diode (VLED) structure and process are described. Features of the design include the following: bonding multiple smaller diameter LED wafers to a larger diameter carrier wafer, which reduces the per LED fabrication cost; using thin film techniques to metalize the anode and cathode and using respective annealing steps prior to photolithography patterning of LED structures; enabling the thin film process by semi-permanent bonding techniques which provide thermal and chemical stability, while allowing bond release at an opportune time by thermal, optical, or chemical means; using epitaxial substrate removal techniques to separate the entire LED film from its growth substrate; and patterning various vertical LED devices which can emit light from the n-type side (cathode), p-type side (anode), side wall, or a combination of the surfaces by using mirror layers and electrically conductive and optically transmissive layers.

    Abstract translation: 描述了薄膜垂直发光二极管（VLED）结构和工艺。 该设计的特点包括：将多个较小直径的LED晶片连接到较大直径的载体晶片，从而降低每个LED制造成本; 使用薄膜技术使阳极和阴极金属化，并且在LED结构的光刻图案化之前使用各自的退火步骤; 通过提供热和化学稳定性的半永久粘合技术实现薄膜过程，同时通过热，光学或化学方式在适当的时间允许粘合释放; 使用外延衬底去除技术将整个LED膜与其生长衬底分离; 并且通过使用镜面层和导电和光学透射层来构图可以从n型侧（阴极），p型侧（阳极），侧壁或表面的组合发射光的各种垂直LED器件。

    Metallic Nanowire Ink Composition for a Substantially Transparent Conductor
    63.
    发明申请
    Metallic Nanowire Ink Composition for a Substantially Transparent Conductor 审中-公开
    用于基本透明导体的金属纳米线油墨组合物

    公开(公告)号：US20140054515A1

    公开(公告)日：2014-02-27

    申请号：US14072136

    申请日：2013-11-05

    Applicant: NthDegree Technologies Worldwide Inc.

    Inventor： Mark David Lowenthal ,  Mark Lewandowski ,  Jeffrey Baldridge ,  Lixin Zheng ,  David Michael Chesler

    IPC: H01B1/22

    CPC classification number: H01B1/22 ,  B82Y30/00 ,  C09D11/033 ,  C09D11/106 ,  C09D11/52 ,  H01L31/022466 ,  H01L31/1884 ,  Y02E10/50

    Abstract: An exemplary printable composition comprises a liquid or gel suspension of a plurality of metallic nanofibers or nanowires; a first solvent; and a viscosity modifier, resin, or binder. In various embodiments, an exemplary metallic nanowire ink which can be printed to produce a substantially transparent conductor comprises a plurality of metallic nanowires at least partially coated with a first polymer comprising polyvinyl pyrrolidone having a molecular weight less than about 50,000; one or more solvents such as 1-butanol, ethanol, 1-pentanol, n-methylpyrrolidone, cyclohexanone, cyclopentanone, 1-hexanol, acetic acid, cyclohexanol, and mixtures thereof; and a second polymer or polymeric precursor such as polyvinyl pyrrolidone or a polyimide, having a molecular weight greater than about 500,000.

    Abstract translation: 示例性可印刷组合物包含多个金属纳米纤维或纳米线的液体或凝胶悬浮液; 第一溶剂; 和粘度调节剂，树脂或粘合剂。 在各种实施方案中，可印刷以制备基本上透明导体的示例性金属纳米线油墨包括至少部分涂覆有包含分子量小于约50,000的聚乙烯吡咯烷酮的第一聚合物的多个金属纳米线; 一种或多种溶剂如1-丁醇，乙醇，1-戊醇，正 - 甲基吡咯烷酮，环己酮，环戊酮，1-己醇，乙酸，环己醇及其混合物; 以及分子量大于约500,000的第二聚合物或聚合物前体，例如聚乙烯吡咯烷酮或聚酰亚胺。

    SYSTEMS AND METHODS FOR FABRICATION OF NANOSTRUCTURES
    64.
    发明申请
    SYSTEMS AND METHODS FOR FABRICATION OF NANOSTRUCTURES 审中-公开
    用于制造纳米结构的系统和方法

    公开(公告)号：US20140001421A1

    公开(公告)日：2014-01-02

    申请号：US13928143

    申请日：2013-06-26

    Applicant: NthDegree Technologies Worldwide Inc.

    Inventor： Vera N. Lockett ,  Mark D. Lowenthal ,  William J. Ray ,  John Gustafson

    IPC: H01B1/02 ,  H01B13/00

    CPC classification number: B22F9/24 ,  C09D11/52 ,  H01B1/02 ,  H01B1/026 ,  H01B13/00

    Abstract: Systems and methods for fabricating nanostructures using other nanostructures as templates. A method includes mixing a dispersion and a reagent solution. The dispersion includes nanostructures such as nanowires including a first element such as copper. The reagent solution includes a second element such as silver. The second element at least partially replaces the first element in the nanostructures. The nanostructures are optionally washed, filtered, and/or deoxidized.

    Abstract translation: 使用其他纳米结构作为模板制造纳米结构的系统和方法。 一种方法包括混合分散体和试剂溶液。 分散体包括纳米结构，例如包括第一元素如铜的纳米线。 试剂溶液包括第二元素如银。 第二元素至少部分替代纳米结构中的第一元素。 任选地对纳米结构进行洗涤，过滤和/或脱氧。

    Three-layer color display using active LED dies
    66.
    发明授权
    Three-layer color display using active LED dies 有权

    公开(公告)号：US11164851B2

    公开(公告)日：2021-11-02

    申请号：US16843590

    申请日：2020-04-08

    Applicant: Nthdegree Technologies Worldwide Inc.

    Inventor： William Johnstone Ray ,  Michael LeFebvre ,  Darin Wagner ,  Richard A. Blanchard

    IPC: H01L25/075 ,  H01L25/065

    Abstract: Over a flexible substrate are deposited stacked pixel layers including a bottom layer of LEDs forming blue pixels, a middle layer of LEDs forming green pixels, and a top layer of LEDs forming red pixels. Each LED die comprises an LED portion and an integrated transistor portion. Applying a voltage to a control terminal of the transistor portion energizes the LED portion. The pixels are substantially transparent, due to the LEDs being microscopic and the pixel areas being much larger, to allow light from the underlying layers to pass through. The three layers of pixels are aligned so that a combination of a single top red pixel, a single underlying green pixel, and a single underlying blue pixel form a single multi-color pixel. The different layers have transparent column and row lines.

    Self-alignment of optical structures to random array of printed micro-LEDs
    69.
    发明授权
    Self-alignment of optical structures to random array of printed micro-LEDs 有权

    公开(公告)号：US10510928B2

    公开(公告)日：2019-12-17

    申请号：US16439141

    申请日：2019-06-12

    Applicant: Nthdegree Technologies Worldwide Inc.

    Inventor： William Johnstone Ray ,  Richard A. Blanchard

    IPC: H01L33/42 ,  G02B27/09 ,  G02B5/02 ,  H01L33/50 ,  H01L23/00 ,  H01L33/38 ,  H01L25/075 ,  H01L33/54 ,  H01L33/40

    Abstract: Printed micro-LEDs have a top metal anode electrode that is relatively tall and narrow and a bottom cathode electrode. After the LED ink is cured, the bottom electrodes are in electrical contact with a conductive layer on a substrate. The locations of the LEDs are random. A thin dielectric layer is then printed between the LEDs, and a thin conductive layer, such as a nano-wire layer, is then printed over the dielectric layer to contact the anode electrodes. The top conductive layer over the tall anode electrodes has bumps corresponding with the locations of the LEDs. An omniphobic liquid is then printed which only resides in the “low” areas of the top conductive layer between the bumps. Any optical material is then uniformly printed over the resulting surface. The printed optical material accumulates only on the bump areas by adhesion and surface tension, so is self-aligned with the individual LEDs.

    LED display with patterned pixel landings and printed LEDs
    70.
    发明授权
    LED display with patterned pixel landings and printed LEDs 有权

    公开(公告)号：US10417956B2

    公开(公告)日：2019-09-17

    申请号：US16219463

    申请日：2018-12-13

    Applicant: Nthdegree Technologies Worldwide Inc.

    Inventor： Brian D. Ogonowsky

    IPC: G09G3/32 ,  H01L23/00 ,  H01L33/06 ,  H01L33/32 ,  H01L33/40 ,  H01L33/00 ,  H01L33/48 ,  H01L33/62 ,  H01L33/58 ,  H01L33/54 ,  H01L33/50 ,  H01L25/075

    Abstract: Pixel locations in an addressable display are defined by metal landings on a top surface of a flexible substrate, such as by depositing a metal film and etching the film. The substrate surface may be hydrophobic so that the hydrophobic surface is exposed between the metal landings. The substrate has conductive vias that connect the metal landings to traces on a bottom surface of the substrate for connection to addressing circuitry. LED ink is then blanket-printed over the top surface and cured to electrically connect bottom electrodes of the LEDs to the metal landings. LEDs that fall between the landings are ineffective. A dielectric layer is blanket-printed which exposes the top electrodes, and a transparent conductor layer is blanket-printed over the LEDs to connect all LEDs associated with an individual pixel location in parallel. Accordingly, all printed steps can be performed without any alignment.

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