公开(公告)号：US20160209002A1

公开(公告)日：2016-07-21

申请号：US14886867

申请日：2015-10-19

Applicant: QD VISION, INC.

Inventor： SETH COE-SULLIVAN ,  JOHN R. LINTON ,  SRIDHAR SADASIVAN ,  EMILY M. SQUIRES ,  MOUNGI G. BAWENDI

IPC: F21V9/16 ,  H01L33/50 ,  F21V3/04

CPC classification number: H05B33/145 ,  F21V3/0625 ,  F21V3/08 ,  F21V3/12 ,  F21V9/30 ,  F21Y2115/10 ,  H01L33/502 ,  H01L2933/0091

Abstract: A solid state lighting device including a light source capable of emitting white light including a blue spectral component and having a deficiency in a spectral region, and an optical component that is positioned to receive at least a portion of the light generated by the light source, the optical component comprising an optical material for converting at least a portion of the blue spectral component of the light to one or more predetermined wavelengths such that light emitted by the solid state lighting device includes light emission from the light source supplemented with light emission at one or more predetermined wavelengths, wherein the optical material comprises quantum confined semiconductor nanoparticles. Also disclosed is lighting fixture, a cover plate for a lighting fixture and a method.

Abstract translation: 一种固态照明装置，包括能够发射包括蓝色光谱分量的白光并且具有光谱区域不足的光源的光源，以及被定位成接收由光源产生的光的至少一部分的光学部件， 所述光学部件包括用于将所述光的蓝色光谱分量的至少一部分转换为一个或多个预定波长的光学材料，使得由所述固态照明装置发射的光包括来自所述光源的光发射，所述光源补充有一个光发射 或更多的预定波长，其中所述光学材料包括量子限制的半导体纳米颗粒。 还公开了照明器具，照明器具用盖板和方法。

公开(公告)号：US09391244B2

公开(公告)日：2016-07-12

申请号：US14644810

申请日：2015-03-11

Applicant: QD VISION, INC.

Inventor： John R. Linton ,  Emily M. Squires ,  Rohit Modi

IPC: H01L21/00 ,  H01L33/50 ,  C09K11/02 ,  C09K11/88 ,  H05B33/14 ,  H01L33/58

CPC classification number: H01L33/50 ,  C09K11/025 ,  C09K11/883 ,  H01L33/504 ,  H01L33/58 ,  H05B33/14 ,  Y02B20/181

Abstract: A white-light emitting lighting device comprising one or more light emitting light sources (preferably solid state semiconductor light emitting diodes) that emit off-white light during operation, wherein the off-white light includes a spectral output including at least one spectral component in a first spectral region from about 360 nm to about 475 nm, at least one spectral component in a second spectral region from about 475 nm to about 575 nm, and at least one deficiency in at least one other spectral region, and an optical component that is positioned to receive at least a portion of the off-white light generated by the one or more light sources, the optical component comprising an optical material for converting at least a portion of the off-white light to one or more predetermined wavelengths, at least one of which has a wavelength in at least one deficient spectral region, such that light emitted by the lighting device comprises white light, wherein the optical material comprises quantum confined semiconductor nanoparticles. Also disclosed is an optical component, lighting fixture, a cover plate for a lighting fixture, and methods.

Abstract translation: 一种白光发射照明装置，包括在操作期间发出灰白色光的一个或多个发光光源（优选固态半导体发光二极管），其中所述灰白色光包括光谱输出，所述光谱输出包括至少一个光谱分量 约360nm至约475nm的第一光谱区域，在约475nm至约575nm的第二光谱区域中的至少一个光谱分量和至少一个其它光谱区域中的至少一个缺陷，以及光学部件， 被定位成接收由一个或多个光源产生的灰白色光的至少一部分，光学部件包括用于将灰白色光的至少一部分转换成一个或多个预定波长的光学材料，在 其中至少一个在至少一个不足的光谱区域中具有波长，使得由照明装置发射的光包括白光，其中光学材料包括 量子限制半导体纳米粒子。 还公开了一种光学部件，照明器具，照明器具的盖板以及方法。

公开(公告)号：US09276168B2

公开(公告)日：2016-03-01

申请号：US14311542

申请日：2014-06-23

Applicant: QD Vision, Inc.

Inventor： Seth Coe-Sullivan ,  Peter T. Kazlas

IPC: H01L33/04 ,  H01L33/58 ,  H01L33/42 ,  H01L33/60 ,  H01L33/50 ,  H05B33/14 ,  H01L33/06 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L33/06 ,  H01L27/322 ,  H01L31/035218 ,  H01L33/04 ,  H01L33/42 ,  H01L33/50 ,  H01L33/507 ,  H01L33/58 ,  H01L33/60 ,  H01L51/5036 ,  H01L51/5088 ,  H01L51/5268 ,  H01L51/56 ,  H01L2251/5369 ,  H05B33/145 ,  Y10S977/774

Abstract: A component including a substrate, at least one layer including a color conversion material comprising quantum dots disposed over the substrate, and a layer comprising a conductive material (e.g., indium-tin-oxide) disposed over the at least one layer. (Embodiments of such component are also referred to herein as a QD light-enhancement substrate (QD-LES).) In certain preferred embodiments, the substrate is transparent to light, for example, visible light, ultraviolet light, and/or infrared radiation. In certain embodiments, the substrate is flexible. In certain embodiments, the substrate includes an outcoupling element (e.g., a microlens array). A film including a color conversion material comprising quantum dots and a conductive material is also provided. In certain embodiments, a component includes a film described herein. Lighting devices are also provided. In certain embodiments, a lighting device includes a film described herein. In certain embodiments, a lighting device includes a component described herein.

Abstract translation: 包括衬底的组件，包括设置在衬底上的包括量子点的颜色转换材料的至少一个层以及设置在至少一个层上的导电材料（例如，氧化铟锡）的层。 （这种组件的实施例在本文中也称为QD光增强基板（QD-LES）。）在某些优选实施例中，基板对光是透明的，例如可见光，紫外光和/或红外辐射 。 在某些实施方案中，基底是柔性的。 在某些实施例中，衬底包括外耦合元件（例如，微透镜阵列）。 还提供了包括包括量子点和导电材料的颜色转换材料的膜。 在某些实施方案中，组分包括本文所述的膜。 还提供照明设备。 在某些实施例中，照明装置包括本文所述的膜。 在某些实施例中，照明装置包括本文所述的部件。

公开(公告)号：US20160027960A1

公开(公告)日：2016-01-28

申请号：US14732772

申请日：2015-06-07

Applicant: QD VISION, INC.

Inventor： SETH COE-SULLIVAN ,  MARSHALL COX ,  CAROLINE J. ROUSH ,  JONATHAN S. STECKEL

IPC: H01L33/06 ,  H01L51/50 ,  H01L27/15 ,  H01L33/00 ,  H01L33/28

CPC classification number: H01L33/06 ,  B82Y20/00 ,  B82Y30/00 ,  C09K11/02 ,  C09K11/565 ,  C09K11/883 ,  H01L27/156 ,  H01L33/0029 ,  H01L33/28 ,  H01L51/5012 ,  H01L51/502 ,  H05B33/145

Abstract: Light-emitting devices and displays with improved performance are disclosed. A light-emitting device includes an emissive material disposed between a first electrode, and a second electrode. Various embodiments include a device having a peak external quantum efficiency of at least about 2.2%; a device that emits light having a CIE color coordinate of x greater than 0.63; a device having an external quantum efficiency of at least about 2.2 percent when measured at a current density of 5 mA/cm2. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a peak luminescent efficiency of at least about 1.5 lumens per watt. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a luminescent efficiency of at least about 1.5 lumens per watt when measured at a current density of 5 milliamps/square centimeter. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting green light upon excitation, wherein the device has a peak external quantum efficiency of at least about 1.1 percent. Further disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals, wherein the device has a luminescent efficiency of at least about 3 lumens per watt when measured at a current density of 5 mA/cm2. Further disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting green light upon excitation, wherein the device has an external quantum efficiency of at least about 2% when measured at a current density of 5 mA/cm2. Other light-emitting devices and displays with improved performance are disclosed. Also disclosed are methods for preparing and for purifying semiconductor nanocrystals.

Abstract translation: 公开了具有改进性能的发光装置和显示器。 发光装置包括设置在第一电极和第二电极之间的发光材料。 各种实施方案包括具有至少约2.2％的峰值外部量子效率的器件; 发射具有x大于0.63的CIE色坐标的光的装置; 当以5mA / cm 2的电流密度测量时，具有至少约2.2％的外部量子效率的器件。 还公开了包括能够在激发时发射红光的多个半导体纳米晶体的发光器件，其中该器件具有至少约1.5流明/瓦特的峰值发光效率。 还公开了一种发光器件，其包括能够在激发时发射红光的多个半导体纳米晶体，其中当以5毫安/平方厘米的电流密度测量时，该器件具有至少约1.5流明/瓦特的发光效率。 还公开了一种发光器件，其包括在激发时能够发射绿光的多个半导体纳米晶体，其中该器件具有至少约1.1％的峰值外部量子效率。 还公开了包括多个半导体纳米晶体的发光器件，其中当以5mA / cm 2的电流密度测量时，该器件具有至少约3流明/瓦的发光效率。 进一步公开的是一种发光器件，其包括能够在激发时发出绿光的多个半导体纳米晶体，其中当以5mA / cm 2的电流密度测量时，该器件具有至少约2％的外部量子效率。 公开了其他具有改进性能的发光装置和显示器。 还公开了制备和纯化半导体纳米晶体的方法。

公开(公告)号：US20150362654A1

公开(公告)日：2015-12-17

申请号：US14737369

申请日：2015-06-11

Applicant: QD VISION, INC.

Inventor： SRIDHAR SADASIVAN ,  KAREN TWIETMEYER ,  WARREN P. PUMYEA ,  VICTORIA K. HINCHEY

IPC: F21V8/00

CPC classification number: G02B6/009 ,  B82Y20/00 ,  G02B6/0023 ,  Y10S977/774

Abstract: A light mixing chamber of a backlight includes a housing having a channel and a chamber exposed to the channel, an LED positioned within the chamber, and a capillary containing quantum dots positioned in the channel. A light guide plate is positioned adjacent the housing and adjacent the capillary. Relative dimensions of the elements of the light mixing chamber, as well as features added to the elements of the light mixing chamber, can be varied to balance efficiency and uniformity of light generated in the backlight.

Abstract translation: 背光的光混合室包括具有通道的通道和暴露于通道的室，位于室内的LED和位于通道中的含有量子点的毛细管。 导光板位于壳体附近并与毛细管相邻。 可以改变光混合室的元件的相对尺寸以及添加到光混合室的元件的特征，以平衡在背光中产生的光的效率和均匀性。

公开(公告)号：US20150048403A1

公开(公告)日：2015-02-19

申请号：US14461384

申请日：2014-08-16

Applicant: QD VISION, INC.

Inventor： BUDHADIPTA DAN ,  SETH COE-SULLIVAN

IPC: H01L33/50 ,  F16J15/02

CPC classification number: H01L51/5246 ,  H01L33/505 ,  H01L2251/566 ,  H01L2933/0041 ,  Y10T428/24851

Abstract: Methods for making multiple hermetically sealed optical components are disclosed. Methods for making an individual hermetically sealed optical component are disclosed. An individual hermetically sealed optical component and products including same are also disclosed.

Abstract translation: 公开了制造多个密封的光学部件的方法。 公开了制造单个密封的光学部件的方法。 还公开了单个密封的光学部件及包括它们的产品。

公开(公告)号：US20150021551A1

公开(公告)日：2015-01-22

申请号：US14284265

申请日：2014-05-21

Applicant: QD VISION, INC.

Inventor： CRAIG BREEN ,  WENHAO LIU

IPC: H01L29/15 ,  H01L21/02 ,  H01L29/225

CPC classification number: H01L33/06 ,  B82Y20/00 ,  B82Y30/00 ,  C09D11/52 ,  C09K11/02 ,  C09K11/565 ,  C09K11/595 ,  C09K11/883 ,  H01L21/02406 ,  H01L21/02422 ,  H01L21/02521 ,  H01L21/02557 ,  H01L21/0256 ,  H01L21/02601 ,  H01L21/02628 ,  H01L29/151 ,  H01L29/225 ,  H01L33/0029 ,  H01L33/28 ,  H01L33/502 ,  Y10S977/774 ,  Y10S977/95

Abstract: A coated quantum dot and methods of making coated quantum dots are provided. Products including quantum dots described herein are also disclosed.

Abstract translation: 提供涂覆量子点和制备涂覆量子点的方法。 还公开了包括本文所述的量子点的产品。

公开(公告)号：US20150021548A1

公开(公告)日：2015-01-22

申请号：US14451125

申请日：2014-08-04

Applicant: QD Vision, Inc.

Inventor： WENHAO LIU ,  CRAIG BREEN ,  SETH COE-SULLIVAN

IPC: H01L33/06 ,  H01L33/00 ,  H01L33/28

CPC classification number: H01L33/06 ,  B82Y20/00 ,  C09D11/52 ,  C09K11/02 ,  C09K11/565 ,  C09K11/883 ,  H01L33/0029 ,  H01L33/28 ,  H01L33/502 ,  Y10S977/774

Abstract: A semiconductor nanocrystal characterized by having a solid state photoluminescence external quantum efficiency at a temperature of 90° C. or above that is at least 95% of the solid state photoluminescence external quantum efficiency of the semiconductor nanocrystal at 25° C. is disclosed. A semiconductor nanocrystal having a multiple LO phonon assisted charge thermal escape activation energy of at least 0.5 eV is also disclosed. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 590 nm to 650 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 5.5. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 545 nm to 590 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 7. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 495 nm to 545 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 10. A composition comprising a plurality of semiconductor nanocrystals wherein the solid state photoluminescence efficiency of the composition at a temperature of 90° C. or above is at least 95% of the solid state photoluminescence efficiency of the composition 25° C. is further disclosed. A method for preparing semiconductor nanocrystals comprises introducing one or more first shell chalcogenide precursors and one or more first shell metal precursors to a reaction mixture including semiconductor nanocrystal cores, wherein the first shell chalcogenide precursors are added in an amount greater than the first shell metal precursors by a factor of at least about 2 molar equivalents and reacting the first shell precursors at a first reaction temperature of at least 300° C. to form a first shell on the semiconductor nanocrystal cores. Populations, compositions, components and other products including semiconductor nanocrystals of the invention are disclosed. Populations, compositions, components and other products including semiconductor nanocrystals made in accordance with any method of the invention is also disclosed.

公开(公告)号：US08906265B2

公开(公告)日：2014-12-09

申请号：US13849676

申请日：2013-03-25

Applicant: QD Vision, Inc.

Inventor： Craig Breen ,  Jonathan S. Steckel ,  Dorai Ramprasad

IPC: C09K11/02 ,  C09K11/54 ,  C09K11/56 ,  C09K11/88 ,  B82Y30/00 ,  H01L33/06 ,  B82Y20/00

CPC classification number: C09K11/883 ,  B82Y20/00 ,  B82Y30/00 ,  C09K11/02 ,  C09K11/025 ,  C09K11/0811 ,  C09K11/565 ,  C09K11/574 ,  H01L33/06 ,  Y10S428/917 ,  Y10T428/2991 ,  Y10T428/2993

Abstract: A semiconductor nanocrystal capable of emitting blue light upon excitation. Also disclosed are devices, populations of semiconductor nanocrystals, and compositions including a semiconductor nanocrystal capable of emitting blue light upon excitation. In one embodiment, a semiconductor nanocrystal capable of emitting blue light including a maximum peak emission at a wavelength not greater than about 470 nm with a photoluminescence quantum efficiency greater than about 65% upon excitation. In another embodiment, a semiconductor nanocrystal includes a core comprising a first semiconductor material comprising at least three chemical elements and a shell disposed over at least a portion of the core, the shell comprising a second semiconductor material, wherein the semiconductor nanocrystal is capable of emitting blue light with a photoluminescence quantum efficiency greater than about 65% upon excitation. In a further embodiment, a semiconductor nanocrystal includes a core comprising a first semiconductor material comprising at least three chemical elements and a shell disposed over at least a portion of the core, the shell comprising a second semiconductor material comprising at least three chemical elements, wherein the semiconductor nanocrystal is capable of emitting light including a maximum peak emission in the blue region of the spectrum upon excitation.

Abstract translation: 激发后能够发出蓝光的半导体纳米晶体。 还公开了半导体纳米晶体的器件，群体，以及包括在激发时能够发射蓝光的半导体纳米晶体的组合物。 在一个实施方案中，能够发射包括波长不大于约470nm的最大峰值发射的蓝光的半导体纳米晶体，其光致发光量子效率在激发时大于约65％。 在另一个实施例中，半导体纳米晶体包括芯，其包含包含至少三个化学元素的第一半导体材料和设置在芯的至少一部分上的壳，壳包括第二半导体材料，其中半导体纳米晶体能够发射 激发后光致发光量子效率大于约65％的蓝光。 在另一实施例中，半导体纳米晶体包括芯，其包括包含至少三个化学元件的第一半导体材料和设置在芯的至少一部分上的外壳，壳包括包含至少三个化学元素的第二半导体材料，其中 半导体纳米晶体在激发时能够发射包括光谱的蓝色区域中的最大峰值发射的光。

公开(公告)号：US20140091275A1

公开(公告)日：2014-04-03

申请号：US13849700

申请日：2013-03-25

Applicant: QD Vision, Inc.

Inventor： Seth Coe-Sullivan ,  Peter T. Kazlas

IPC: H01L33/06 ,  H01L33/50

CPC classification number: H01L33/06 ,  H01L27/322 ,  H01L31/035218 ,  H01L33/04 ,  H01L33/42 ,  H01L33/50 ,  H01L33/507 ,  H01L33/58 ,  H01L33/60 ,  H01L51/5036 ,  H01L51/5088 ,  H01L51/5268 ,  H01L51/56 ,  H01L2251/5369 ,  H05B33/145 ,  Y10S977/774

Abstract: A component including a substrate, at least one layer including a color conversion material including quantum dots disposed over the substrate, and a layer including a conductive material (e.g., indium-tin-oxide) disposed over the at least one layer. (Embodiments of such component are also referred to herein as a QD light-enhancement substrate (QD-LES).) In certain preferred embodiments, the substrate is transparent to light, for example, visible light, ultraviolet light, and/or infrared radiation. In certain embodiments, the substrate is flexible. In certain embodiments, the substrate includes an outcoupling element (e.g., a microlens array). A film including a color conversion material including quantum dots and a conductive material is also provided. In certain embodiments, a component includes a film described herein. Lighting devices are also provided. In certain embodiments, a lighting device includes a film described herein. In certain embodiments, a lighting device includes a component described herein.

Abstract translation: 包括衬底的组件，包括包括设置在衬底上的量子点的颜色转换材料的至少一个层以及包括设置在所述至少一层上的导电材料（例如，氧化铟锡）的层。 （这种组件的实施例在本文中也称为QD光增强基板（QD-LES）。）在某些优选实施例中，基板对光是透明的，例如可见光，紫外光和/或红外辐射 。 在某些实施方案中，基底是柔性的。 在某些实施例中，衬底包括外耦合元件（例如，微透镜阵列）。 还提供了包括包括量子点和导电材料的颜色转换材料的膜。 在某些实施方案中，组分包括本文所述的膜。 还提供照明设备。 在某些实施例中，照明装置包括本文所述的膜。 在某些实施例中，照明装置包括本文所述的部件。