公开(公告)号：US10316250B2

公开(公告)日：2019-06-11

申请号：US15599848

申请日：2017-05-19

Applicant: NANOSYS, Inc.

Inventor： Wenzhou Guo ,  Christian Ippen ,  Charles Hotz ,  Rose Beeler ,  Jared Lynch ,  Shihai Kan ,  Jonathan Truskier ,  Minghu Tu

IPC: C09K11/88 ,  B82Y40/00 ,  B82Y20/00 ,  C09K11/02 ,  C09K11/56 ,  C09K11/70

Abstract: Highly luminescent nanostructures, particularly highly luminescent quantum dots, comprising a nanocrystal core are provided. Also provided are methods of increasing the sphericity of nanostructures comprising subjecting nanocrystal cores to an acid etch step, an annealing step, or a combination of an acid etch step and an annealing step.

公开(公告)号：US10302845B2

公开(公告)日：2019-05-28

申请号：US15245020

申请日：2016-08-23

Applicant: Nanosys, Inc.

Inventor： Robert S. Dubrow ,  William P. Freeman ,  Ernest Lee ,  Paul Furuta

IPC: F21V8/00 ,  B82Y20/00 ,  B32B5/16 ,  B32B9/04 ,  G02F1/1335 ,  F21V9/30 ,  F21Y115/10

Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.

公开(公告)号：US20190064591A1

公开(公告)日：2019-02-28

申请号：US16108319

申请日：2018-08-22

Applicant: Nanosys, Inc.

Inventor： Ernest Lee ,  Jason Hartlove ,  Shihai Kan ,  Jian Chen

IPC: G02F1/1335

Abstract: Embodiments of a display device are described. A display device includes a backlight unit having a light source and a liquid crystal display (LCD) module. The LCD module includes a phosphor film and a filter element. The phosphor film is configured to receive a primary light, from the light source, having a first peak wavelength and to convert a portion of the primary light to emit a secondary light having a second peak wavelength. The second peak wavelength is different from the first peak wavelength. The filter element is optically coupled to the phosphor film and is configured to allow the secondary light to pass through the filter element and to block an unconverted portion of the primary light from passing through the filter element.

公开(公告)号：US10214686B2

公开(公告)日：2019-02-26

申请号：US15695220

申请日：2017-09-05

Applicant: Nanosys, Inc.

Inventor： Robert S. Dubrow

IPC: C09K11/56 ,  C23C16/455 ,  B32B37/14 ,  C09K11/70 ,  C09K11/88 ,  C23C16/40 ,  C09K11/02 ,  C23C14/08 ,  C23C14/10 ,  C09K11/62 ,  B32B37/18

Abstract: The present invention provides methods for hermetically sealing luminescent nanocrystals, as well as compositions and containers comprising hermetically sealed luminescent nanocrystals. By hermetically sealing the luminescent nanocrystals, enhanced lifetime and luminescence can be achieved.

公开(公告)号：US10128417B2

公开(公告)日：2018-11-13

申请号：US15368334

申请日：2016-12-02

Applicant: Nanosys, Inc.

Inventor： Jason Hartlove ,  Veeral Hardev ,  Shihai Kan ,  Jian Chen ,  Jay Yamanaga ,  Christian Ippen ,  Wenzhuo Guo ,  Charles Hotz ,  Robert Wilson

IPC: H01L33/50 ,  B01J13/08 ,  C09K11/02 ,  C09K11/88 ,  H01L27/32 ,  H05B33/14 ,  H05B33/20 ,  B82Y20/00 ,  B82Y40/00

Abstract: Embodiments of a display device including barrier layer coated quantum dots and a method of making the barrier layer coated quantum dots are described. Each of the barrier layer coated quantum dots includes a core-shell structure and a hydrophobic barrier layer disposed on the core-shell structure. The hydrophobic barrier layer is configured to provide a distance between the core-shell structure of one of the quantum dots with the core-shell structures of other quantum dots that are in substantial contact with the one of the quantum dots. The method for making the barrier layer coated quantum dots includes forming reverse micro-micelles using surfactants and incorporating quantum dots into the reverse micro-micelles. The method further includes individually coating the incorporated quantum dots with a barrier layer and isolating the barrier layer coated quantum dots with the surfactants of the reverse micro-micelles disposed on the barrier layer.

公开(公告)号：US10066161B2

公开(公告)日：2018-09-04

申请号：US15406227

申请日：2017-01-13

Applicant: NANOSYS, Inc.

Inventor： John J. Curley ,  Chunming Wang

IPC: H01L33/00 ,  C09K11/70 ,  C09K11/02 ,  C09K11/08 ,  H01L33/50 ,  H01L33/58 ,  B82Y40/00 ,  B82Y20/00

CPC classification number: C09K11/706 ,  B82Y20/00 ,  B82Y40/00 ,  C09K11/02 ,  C09K11/025 ,  C09K11/0883 ,  C09K11/62 ,  C09K11/70 ,  C09K11/703 ,  H01L33/502 ,  H01L33/58 ,  H05B33/14 ,  Y10S977/774 ,  Y10S977/818 ,  Y10S977/892 ,  Y10S977/95

Abstract: Disclosed are highly luminescent nanostructures, particularly highly luminescent quantum dots, comprising a nanocrystal core of InP and shell layers of GaP and AlP. The nanostructures may have an additional shell layer. Also provided are methods of preparing the nanostructures, films comprising the nanostructure and devices comprising the nanostructures.

公开(公告)号：US10029972B2

公开(公告)日：2018-07-24

申请号：US15348540

申请日：2016-11-10

Applicant: NANOSYS, Inc.

Inventor： John J. Curley ,  Tim Slugocki ,  Charlie Hotz

IPC: C07C51/02 ,  C09K11/08 ,  C01B25/08 ,  C09K11/70 ,  C07C53/10 ,  H01L21/02 ,  C07F5/00

Abstract: The present invention is in the field of nanostructure synthesis. The present invention is directed to methods for producing nanostructures, particularly Group III-V semiconductor nanostructures. The present invention is also directed to preparing Group III inorganic compounds that can be used as precursors for nanostructure synthesis.

公开(公告)号：US20180158984A1

公开(公告)日：2018-06-07

申请号：US15824701

申请日：2017-11-28

Applicant: Nanosys, Inc.

Inventor： Jesse Manders ,  Christian Ippen ,  Don Zehnder ,  Jonathan Truskier ,  Charlie Hotz

IPC: H01L33/06 ,  H01L33/42 ,  H01L33/14 ,  H01L33/00

Abstract: Embodiments of the present application relate to the use of quantum dots mixed with spacer particles. An illumination device includes a first conductive layer, a second conductive layer, and an active layer disposed between the first conductive layer and the second conductive layer. The active layer includes a plurality of quantum dots that emit light when an electric field is generated between the first and second conductive layers. The quantum dots are interspersed with spacer particles that do not emit light when the electric field is generated between the first and second conductive layers.

公开(公告)号：US20180155623A1

公开(公告)日：2018-06-07

申请号：US15852249

申请日：2017-12-22

Applicant: Nanosys, Inc.

Inventor： Wenzhuo GUO ,  Jian CHEN ,  Robert DUBROW ,  William P. FREEMAN

IPC: C09K11/88 ,  B82Y40/00 ,  C09K11/02 ,  C09K11/06 ,  H01L33/50 ,  C09K11/70 ,  H01L33/00 ,  H01L33/06 ,  C09K11/56 ,  B82Y20/00

CPC classification number: H01L33/0083 ,  B82Y20/00 ,  B82Y40/00 ,  C09K11/02 ,  C09K11/025 ,  C09K11/06 ,  C09K11/565 ,  C09K11/70 ,  C09K11/883 ,  H01L33/005 ,  H01L33/06 ,  H01L33/502 ,  H01L2933/0025 ,  H01L2933/0041 ,  Y10S977/774 ,  Y10S977/778 ,  Y10S977/818 ,  Y10S977/824 ,  Y10S977/825 ,  Y10S977/84 ,  Y10S977/892 ,  Y10S977/95

Abstract: Highly luminescent nanostructures, particularly highly luminescent quantum dots, are provided. The nanostructures have high photoluminescence quantum yields and in certain embodiments emit light at particular wavelengths and have a narrow size distribution. The nanostructures can comprise ligands, including C5-C8 carboxylic acid ligands employed during shell formation and/or dicarboxylic or polycarboxylic acid ligands provided after synthesis. Processes for producing such highly luminescent nanostructures are also provided, including methods for enriching nanostructure cores with indium and techniques for shell synthesis.

公开(公告)号：US20180120492A1

公开(公告)日：2018-05-03

申请号：US15788346

申请日：2017-10-19

Applicant: Nanosys, Inc.

Inventor： Ernest LEE ,  Jason HARTLOVE

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/005 ,  B82Y30/00 ,  B82Y40/00 ,  C09K11/025 ,  C09K11/703 ,  C09K11/883 ,  G02B6/00 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0068 ,  G02F1/1336 ,  G02F1/133603 ,  G02F1/133615 ,  G02F1/133621 ,  G02F2001/133614 ,  G02F2001/133624 ,  G02F2202/36 ,  H01L33/502 ,  H01L33/507 ,  H05B33/14

Abstract: Embodiments of a display device are described. The display device includes a backlight unit having a light source, a quantum dot film, and a radiation absorbing element. The quantum dot film is optically coupled to the light source and is configured to process light received from the light source. The radiation absorbing element is optically coupled to the quantum dot film and is configured to tune a spectral emission width of the processed light received from the quantum dot film to achieve over 90% color gamut coverage of a standard RGB color space