公开(公告)号：US11637258B2

公开(公告)日：2023-04-25

申请号：US16938239

申请日：2020-07-24

Applicant: Nanosys, Inc.

Inventor： Jesse R. Manders

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52

Abstract: Embodiments of a display device are described. A display device includes first and second sub-pixels. The first sub-pixel includes a first light source having a quantum dot (QD) film, a blocking layer disposed on the QD film, and a first portion of an organic phosphor film disposed on the blocking layer and a first substrate configured to support the first light source. The blocking layer is configured to prevent emission of light from the first portion of the organic phosphor film and the QD film is configured to emit a primary emission peak wavelength in a red, green, cyan, yellow, or magenta wavelength region of an electromagnetic (EM) spectrum. The second sub-pixel includes a second light source and a second substrate configured to support the second light source. The second light source has a second portion of the organic phosphor film disposed adjacent to the QD film. The second portion of the organic phosphor film is configured to emit a primary emission peak wavelength in a blue, violet, or ultraviolet wavelength region of an EM spectrum.

公开(公告)号：US11549058B2

公开(公告)日：2023-01-10

申请号：US16751632

申请日：2020-01-24

Applicant: Nanosys, Inc.

Inventor： Ilan Jen-La Plante ,  Yeewah Annie Chow ,  John J. Curley ,  Wenzhou Guo ,  Alexander Tu ,  Chunming Wang

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

Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides nanostructure compositions comprising (a) at least one population of nanostructures; (b) at least one metal halide bound to the surface of the nanostructures; and (c) at least one metal carboxylate bound to the surface of the nanostructures. The nanostructure compositions have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are methods of preparing the nanostructure compositions. And, nanostructure films and molded articles comprising the nanostructure compositions are also provided.

公开(公告)号：US20220411691A1

公开(公告)日：2022-12-29

申请号：US17858238

申请日：2022-07-06

Applicant: Nanosys, Inc.

Inventor： Ernest LEE ,  ZhongSheng LUO

IPC: C09K11/02 ,  C09K11/88 ,  C09K11/08

Abstract: ROSH compliant mixed quantum dot films are disclosed which, when contained in a film within a display, exhibit high color gamut, high energy efficiency, and a narrow full width at half maximum at individual wavelength emissions.

公开(公告)号：US11506929B2

公开(公告)日：2022-11-22

申请号：US16540541

申请日：2019-08-14

Applicant: Nanosys, Inc.

Inventor： Ernest Chung-Wei Lee ,  Charles Hotz

IPC: G02F1/13357 ,  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 light source is configured to emit a primary light having a first peak wavelength. The LCD module includes a first sub-pixel having a phosphor film and a second sub-pixel having a non-phosphor film. The phosphor film is configured to receive a first portion of the primary light and to convert the first portion of the primary light to emit a secondary light having a second peak wavelength that is different from the first peak wavelength. The non-phosphor film is configured to receive a second portion of the primary light and to optically modify the second portion of the primary light to emit an optically modified primary light having a third peak wavelength that is different from the first and second peak wavelengths.

公开(公告)号：US11499097B2

公开(公告)日：2022-11-15

申请号：US16991096

申请日：2020-08-12

Applicant: NANOSYS, INC.

Inventor： Benjamin Newmeyer ,  Christian Ippen ,  Ruiqing Ma

IPC: C09K11/88 ,  H01L33/00 ,  H01L33/06 ,  H01L33/50 ,  B82Y20/00

Abstract: The invention pertains to the field of nanotechnology. The invention provides highly luminescent nanostructures, particularly highly luminescent nanostructures comprising a ZnSe1-xTex core and ZnS and/or ZnSe shell layers. The nanostructures comprising a ZnSe1-xTex core and ZnS and/or ZnSe shell layers display a low full width at half-maximum and a high quantum yield. The invention also provides methods of producing the nanostructures.

公开(公告)号：US11428988B2

公开(公告)日：2022-08-30

申请号：US16549276

申请日：2019-08-23

Applicant: Nanosys, Inc.

Inventor： Ernest C. Lee ,  Ilan Jen-La Plante

IPC: G02F1/1335 ,  H01L33/06 ,  G02F1/13357

Abstract: Embodiments of a display device are described. The display device includes a liquid crystal display (LCD) module and a backlight unit designed to emit a primary light in a first wavelength region of an electromagnetic (EM) spectrum. The LCD module includes an array of pixels having at least one pixel with a sub-pixel that includes a layer of luminescent nanostructures and a layer of fluorescent material. The layer of luminescent nanostructures absorbs the primary light and emits a second light in a second wavelength region of the EM spectrum different from the first wavelength region. The layer of fluorescent material absorbs the primary light that has passed through the layer of luminescent nanostructures, and emits a third light in the second wavelength region of the EM spectrum.

公开(公告)号：US11420412B2

公开(公告)日：2022-08-23

申请号：US17477265

申请日：2021-09-16

Applicant: Nanosys, Inc.

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

IPC: B32B5/16 ,  F21V9/30 ,  B32B9/04 ,  B82Y20/00 ,  F21V8/00 ,  G02F1/13357 ,  F21Y115/10 ,  G02F1/1335

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：US11407940B2

公开(公告)日：2022-08-09

申请号：US17166788

申请日：2021-02-03

Applicant: Nanosys, Inc.

Inventor： Ravisubhash Tangirala ,  Jay Yamanaga ,  Wenzhou Guo ,  Christopher Sunderland ,  Ashenafi Damtew Mamuye ,  Chunming Wang ,  Eunhee Hwang ,  Nahyoung Kim

IPC: C09K11/02 ,  C09K11/62 ,  B32B15/04 ,  B32B15/09 ,  B32B17/06 ,  B29B7/90 ,  C08J5/18 ,  G02B1/00 ,  G02F1/13357 ,  G02F1/1335 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00

Abstract: Disclosed are films comprising Ag, In, Ga, and S (AIGS) nanostructures and at least one ligand bound to the nanostructures. In some embodiment, the AIGS nanostructures have a photon conversion efficiency of greater than 32% and a peak wavelength emission of 480-545 nm. In some embodiments, the nanostructures have an emission spectrum with a FWHM of 24-38 nm.

公开(公告)号：US20220228060A1

公开(公告)日：2022-07-21

申请号：US17712505

申请日：2022-04-04

Applicant: Nanosys, Inc.

Inventor： Benjamin NEWMEYER ,  Christian IPPEN ,  Ruiqing MA ,  Diego BARRERA ,  Jesse Robert MANDERS

IPC: C09K11/88 ,  C09K11/02 ,  C09K11/08 ,  C09K11/61

Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides methods of preparing nanostructures with fluoride passivation. The disclosure also provides methods of preparing nanostructures with fluoride and amine passivation. The nanostructures have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are nanostructures prepared using the methods. And, nanostructure films and molded articles comprising the nanostructures are also provided.

公开(公告)号：US20220223769A1

公开(公告)日：2022-07-14

申请号：US17551578

申请日：2021-12-15

Applicant: NANOSYS, INC.

Inventor： Brian KIM ,  Ivan HUANG ,  Saket CHADDA

IPC: H01L33/58 ,  H01L27/15 ,  H01L33/32

Abstract: A light-emitting device includes a backplane, light-emitting diodes (LEDs) located over a front side of the backplane, and microlenses respectively disposed over the LEDs. Each microlens includes a back surface having a first surface area and configured to receive light emitted from a corresponding LED, an opposing front surface having a second surface area and configured to emit the received light, and at least one sidewall extending from the front surface to the back surface. The second surface area is greater than the first surface area.