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1. 发明授权

US11637258B2 Display devices with different light sources 有权
公开(公告)号：US11637258B2
公开(公告)日：2023-04-25
申请号：US16938239
申请日：2020-07-24
申请人： Nanosys, Inc.
发明人： Jesse R. Manders
IPC分类号： H01L27/32 , H01L51/50 , H01L51/52
摘要： 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.

2. 发明授权

US11549058B2 Small molecule passivation of quantum dots for increased quantum yield 有权
公开(公告)号：US11549058B2
公开(公告)日：2023-01-10
申请号：US16751632
申请日：2020-01-24
申请人： Nanosys, Inc.
发明人： Ilan Jen-La Plante , Yeewah Annie Chow , John J. Curley , Wenzhou Guo , Alexander Tu , Chunming Wang
IPC分类号： C09K11/70 , C09K11/02 , H01L33/00 , H01L33/06 , B82Y20/00 , B82Y40/00
摘要： 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.

3. 发明申请

US20220411691A1 ROHS COMPLIANT MIXED QUANTUM DOT FILMS 有权
公开(公告)号：US20220411691A1
公开(公告)日：2022-12-29
申请号：US17858238
申请日：2022-07-06
申请人： Nanosys, Inc.
发明人： Ernest LEE , ZhongSheng LUO
IPC分类号： C09K11/02 , C09K11/88 , C09K11/08
摘要： 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.

4. 发明授权

US11506929B2 Nanostructure based display devices 有权
公开(公告)号：US11506929B2
公开(公告)日：2022-11-22
申请号：US16540541
申请日：2019-08-14
申请人： Nanosys, Inc.
发明人： Ernest Chung-Wei Lee , Charles Hotz
IPC分类号： G02F1/13357 , G02F1/1335
摘要： 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.

5. 发明授权

US11499097B2 Synthesis of blue-emitting ZnSe1-xTex alloy nanocrystals with low full width at half-maximum 有权
公开(公告)号：US11499097B2
公开(公告)日：2022-11-15
申请号：US16991096
申请日：2020-08-12
申请人： NANOSYS, INC.
发明人： Benjamin Newmeyer , Christian Ippen , Ruiqing Ma
IPC分类号： C09K11/88 , H01L33/00 , H01L33/06 , H01L33/50 , B82Y20/00
摘要： 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.

6. 发明授权

US11428988B2 Increasing color gamut performance and efficiency in quantum dot color conversion layers 有权
公开(公告)号：US11428988B2
公开(公告)日：2022-08-30
申请号：US16549276
申请日：2019-08-23
申请人： Nanosys, Inc.
发明人： Ernest C. Lee , Ilan Jen-La Plante
IPC分类号： G02F1/1335 , H01L33/06 , G02F1/13357
摘要： 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.

7. 发明授权

US11420412B2 Quantum dot films, lighting devices, and lighting methods 有权
公开(公告)号：US11420412B2
公开(公告)日：2022-08-23
申请号：US17477265
申请日：2021-09-16
申请人： Nanosys, Inc.
发明人： Robert S. Dubrow , William P. Freeman , Ernest Lee , Paul Furuta
IPC分类号： B32B5/16 , F21V9/30 , B32B9/04 , B82Y20/00 , F21V8/00 , G02F1/13357 , F21Y115/10 , G02F1/1335
摘要： 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.

8. 发明授权

US11407940B2 Films comprising bright silver based quaternary nanostructures 有权
公开(公告)号：US11407940B2
公开(公告)日：2022-08-09
申请号：US17166788
申请日：2021-02-03
申请人： Nanosys, Inc.
发明人： Ravisubhash Tangirala , Jay Yamanaga , Wenzhou Guo , Christopher Sunderland , Ashenafi Damtew Mamuye , Chunming Wang , Eunhee Hwang , Nahyoung Kim
IPC分类号： 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
摘要： 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.

9. 发明申请

US20220228060A1 BLUE-EMITTING NANOCRYSTALS WITH CUBIC SHAPE AND FLUORIDE PASSIVATION 有权
公开(公告)号：US20220228060A1
公开(公告)日：2022-07-21
申请号：US17712505
申请日：2022-04-04
申请人： Nanosys, Inc.
发明人： Benjamin NEWMEYER , Christian IPPEN , Ruiqing MA , Diego BARRERA , Jesse Robert MANDERS
IPC分类号： C09K11/88 , C09K11/02 , C09K11/08 , C09K11/61
摘要： 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.

10. 发明申请

US20220223769A1 LIGHT-EMITTING DIODE DEVICE CONTAINING MICROLENSES AND METHOD OF MAKING THE SAME 有权
公开(公告)号：US20220223769A1
公开(公告)日：2022-07-14
申请号：US17551578
申请日：2021-12-15
申请人： NANOSYS, INC.
发明人： Brian KIM , Ivan HUANG , Saket CHADDA
IPC分类号： H01L33/58 , H01L27/15 , H01L33/32
摘要： 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.

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