公开(公告)号：US11886073B2

公开(公告)日：2024-01-30

申请号：US17991404

申请日：2022-11-21

申请人： Shoei Chemical Inc.

发明人： Ernest Chung-Wei Lee ,  Charles Hotz

IPC分类号： G02F1/13357 ,  G02F1/1335

CPC分类号： G02F1/133603 ,  G02F1/133504 ,  G02F1/133509 ,  G02F1/133528 ,  G02F2202/36

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.

公开(公告)号：US12089437B2

公开(公告)日：2024-09-10

申请号：US17604684

申请日：2020-04-17

申请人： Shoei Chemical Inc.

发明人： Ruiqing Ma ,  Jason Hartlove ,  Charles Hotz

IPC分类号： H10K50/858 ,  H10K50/115 ,  H10K50/844 ,  H10K50/87 ,  H10K71/00 ,  H10K77/10 ,  H10K102/00

CPC分类号： H10K50/858 ,  H10K50/115 ,  H10K71/00 ,  H10K50/844 ,  H10K50/87 ,  H10K77/111 ,  H10K2102/311

摘要： Embodiments of a flexible electroluminescent (FEE) device are described. An FEE device includes a device stack with a quantum dot (QD) film configured to generate a first light having a first peak wavelength and a flexible substrate configured to support the device stack and emit a first portion of the first light. The FEE device further includes an encapsulation layer disposed on the device stack and an outcoupling layer disposed on the flexible substrate. The encapsulation layer can be configured to provide mechanical and environmental protection to the FEE device from moisture or oxygen. The outcoupling layer can be configured to prevent total internal reflection of a second portion of the first light within the flexible substrate and extract the second portion from the flexible substrate. The outcoupling layer can be further configured to eliminate air gaps at an interface between the outcoupling layer and a surface to be illuminated by the extracted second portion in response to the FEE device being substantially conformally placed on the surface.

公开(公告)号：US11988922B2

公开(公告)日：2024-05-21

申请号：US17609205

申请日：2020-05-07

申请人： Shoei Chemical Inc.

发明人： Ernest C. Lee ,  David Olmeijer ,  Charles Hotz ,  Ruiqing Ma ,  Jason Hartlove

IPC分类号： G02F1/1335 ,  G02F1/13357

CPC分类号： G02F1/133614 ,  G02F1/133512 ,  G02F1/133603 ,  G02F1/133528 ,  G02F2202/36

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 LCD module includes a nanostructure-based color conversion (NS-based CC) layer and a light extraction layer. The NS-based CC layer 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 first portion of a secondary light having a second peak wavelength. The second peak wavelength is different from the first peak wavelength. The light extraction layer is optically coupled to the NS-based CC layer and is configured to prevent total internal reflection of a second portion of the secondary light. The light extraction layer has patterned features with one or more dimension in nanometer scale.

公开(公告)号：US12049582B2

公开(公告)日：2024-07-30

申请号：US16847782

申请日：2020-04-14

申请人： Shoei Chemical Inc.

发明人： Yeewah Annie Chow ,  Jason Hartlove ,  Charles Hotz ,  Chunming Wang ,  Wenzhou Guo ,  Ilan Jen-La Plante ,  Jason Travis Tillman ,  John J. Curley ,  Christian Ippen ,  Alexander Tu ,  Ke Gong ,  Minghu Tu

IPC分类号： H10K50/115 ,  C09K11/02 ,  C09K11/08 ,  C09K11/88 ,  G02F1/13357 ,  B82Y20/00 ,  B82Y40/00 ,  F21V8/00 ,  G02F1/1335

CPC分类号： C09K11/883 ,  C09K11/02 ,  C09K11/0883 ,  G02F1/1336 ,  H10K50/115 ,  B82Y20/00 ,  B82Y40/00 ,  G02B6/005 ,  G02F1/133614 ,  G02F2202/36

摘要： This disclosure pertains to the field of nanotechnology. The disclosure provides methods of preparing nanostructures using in situ prepared zinc dioleate and/or a metal halide. 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：US11824146B2

公开(公告)日：2023-11-21

申请号：US17081667

申请日：2020-10-27

申请人： Shoei Chemical Inc.

发明人： Shihai Kan ,  Jay Yamanaga ,  Charles Hotz ,  Jason Hartlove ,  Veeral Hardev ,  Jian Chen ,  Christian Ippen ,  Wenzhou Guo ,  Robert Wilson

IPC分类号： H01L33/56 ,  H01L33/50 ,  C09K11/70 ,  C09K11/88 ,  C09K11/02 ,  B82Y40/00 ,  C09K11/56 ,  H10K50/84 ,  B82Y20/00 ,  B82Y30/00

CPC分类号： H01L33/56 ,  B82Y40/00 ,  C09K11/025 ,  C09K11/565 ,  C09K11/70 ,  C09K11/703 ,  C09K11/883 ,  H01L33/502 ,  H10K50/84 ,  B82Y20/00 ,  B82Y30/00 ,  Y10S977/774 ,  Y10S977/892 ,  Y10S977/95

摘要： Quantum dots and methods of making quantum dots are described. A method begins with forming quantum dots having a core-shell structure with a plurality of ligands on the shell structure. The method includes exchanging the plurality of ligands with a plurality of second ligands. The plurality of second ligands have a weaker binding affinity to the shell structure than the plurality of first ligands. The plurality of second ligands are then exchanged with hydrolyzed alkoxysilane to form a monolayer of hydrolyzed alkoxysilane on a surface of the shell structure. The method includes forming a barrier layer around the shell structure by using the hydrolyzed alkoxysilane as a nucleation center.