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1. WO2020140778 - WAVELENGTH CONVERSION DEVICE, LIGHT SOURCE SYSTEM AND DISPLAY DEVICE

Publication Number WO/2020/140778
Publication Date 09.07.2020
International Application No. PCT/CN2019/127266
International Filing Date 23.12.2019
IPC
G03B 21/20 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
14Details
20Lamp housings
CPC
G03B 21/20
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
14Details
20Lamp housings
G03B 21/2033
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
14Details
20Lamp housings
2006characterised by the light source
2033LED or laser light sources
G03B 21/204
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
14Details
20Lamp housings
2006characterised by the light source
2033LED or laser light sources
204using secondary light emission, e.g. luminescence or fluorescence
G03B 21/2053
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
14Details
20Lamp housings
2053Intensity control of illuminating light
Applicants
  • 深圳光峰科技股份有限公司 APPOTRONICS CORPORATION LIMITED [CN]/[CN]
Inventors
  • 田梓峰 TIAN, Zifeng
  • 徐虎 XU, Hu
  • 李屹 LI, Yi
Priority Data
201910008220.104.01.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) WAVELENGTH CONVERSION DEVICE, LIGHT SOURCE SYSTEM AND DISPLAY DEVICE
(FR) DISPOSITIF DE CONVERSION DE LONGUEUR D'ONDE, SYSTÈME DE SOURCE DE LUMIÈRE ET DISPOSITIF D'AFFICHAGE
(ZH) 波长转换装置、光源系统与显示设备
Abstract
(EN)
A wavelength conversion device, a light source system comprising the wavelength conversion device, and a display device. The wavelength conversion device comprises a first wavelength conversion element (121) for converting first excitation light into first excited light, and a second wavelength conversion element (122) for converting second excitation light into second excited light; the first excitation light and the second excitation light are transmitted in different optical paths, the wavelength of the first excited light is within a first wavelength range, the wavelength of the second excited light is within a second wavelength range, and the bandwidth of the first wavelength range is relatively wider than that of the second wavelength range. The present invention is beneficial to improving the brightness and colour purity of illumination light for displaying, and the structure used has the advantages of simple process and low cost.
(FR)
La présente invention concerne un dispositif de conversion de longueur d'onde, un système de source de lumière comprenant ce dispositif de conversion de longueur d'onde, et un dispositif d'affichage. Le dispositif de conversion de longueur d'onde comprend un premier élément de conversion de longueur d'onde (121) servant à convertir une première lumière d'excitation en une première lumière excitée, et un second élément de conversion de longueur d'onde (122) servant à convertir une seconde lumière d'excitation en une seconde lumière excitée ; la première lumière d'excitation et la seconde lumière d'excitation sont transmises dans différents chemins optiques, la longueur d'onde de la première lumière excitée se situe dans une première plage de longueurs d'onde, la longueur d'onde de la seconde lumière excitée se situe dans une seconde plage de longueurs d'onde, et la largeur de bande de la première plage de longueurs d'onde est relativement plus large que celle de la seconde plage de longueurs d'onde. La présente invention est avantageuse pour améliorer la luminosité et la pureté de la couleur de la lumière d'éclairage servant à l'affichage, et la structure utilisée présente les avantages d'avoir un processus simple et un faible coût.
(ZH)
一种波长转换装置、包含波长转换装置的光源系统及显示设备,包括第一波长转换元件(121),用于将第一激发光转换为第一受激光;以及第二波长转换元件(122),用于将第二激发光转换为第二受激光,第一激发光和第二激发光沿不同的光路传输,第一受激光的波长处于第一波长范围内,第二受激光的波长处于第二波长范围内,第一波长范围相较于第二波长范围的带宽较宽,有利于提升用于显示的照明光的亮度以及色纯度,且所采用的结构具有工艺简单、成本低廉的优点。
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