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1. WO2022000219 - LIGHT CONVERSION LAYER AND PREPARATION METHOD, AND LED DISPLAY PANEL AND PREPARATION METHOD

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Publication Number WO/2022/000219
Publication Date 06.01.2022
International Application No. PCT/CN2020/099056
International Filing Date 29.06.2020
IPC
G02F 1/1335 2006.1
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
H01L 27/32 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
Applicants
  • 重庆康佳光电技术研究院有限公司 CHONGQING KONKA PHOTOELECTRIC TECHNOLOGY RESEARCH INSTITUTE CO., LTD. [CN]/[CN]
Inventors
  • 翟峰 ZHAI, Feng
  • 唐彪 TANG, Biao
Agents
  • 深圳鼎合诚知识产权代理有限公司 DHC IP ATTORNEYS
Priority Data
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) LIGHT CONVERSION LAYER AND PREPARATION METHOD, AND LED DISPLAY PANEL AND PREPARATION METHOD
(FR) COUCHE DE CONVERSION DE LUMIÈRE ET PROCÉDÉ DE PRÉPARATION, ET ÉCRAN D'AFFICHAGE À DEL ET PROCÉDÉ DE PRÉPARATION
(ZH) 一种光转换层及制备方法、LED显示面板及制备方法
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Abstract
(EN) A light conversion layer (10) and a preparation method, and an LED display panel and a preparation method. A light conversion unit (20) of the light conversion layer (10) comprises a plurality of layers of colloidal crystals (21), and a light conversion material (22) dispersed in gaps between the colloidal crystals (21), wherein the particle size of the colloidal crystals (21) can ensure that the colloidal crystals (21) reflect light emitted by a blue LED chip, such that blue light irradiating the colloidal crystals (21) can be reflected once or many times, and can then irradiate the light conversion material (22) again in order to complete conversion.
(FR) L'invention concerne une couche de conversion de lumière (10) et un procédé de préparation, et un écran d'affichage à DEL et un procédé de préparation. Une unité de conversion de lumière (20) de la couche de conversion de lumière (10) comprend une pluralité de couches de cristaux colloïdaux (21), et un matériau de conversion de lumière (22) dispersé dans des espaces entre les cristaux colloïdaux (21), la taille des particules des cristaux colloïdaux (21) pouvant s'assurer que les cristaux colloïdaux (21) réfléchissent la lumière émise par une puce de DEL bleue, de telle sorte que la lumière bleue irradiant les cristaux colloïdaux (21) peut être réfléchie une fois ou plusieurs fois, et peut ensuite irradier à nouveau le matériau de conversion de lumière (22) afin d'achever la conversion.
(ZH) 一种光转换层（10）及制备方法、LED显示面板及制备方法，光转换层（10）的光转换单元（20）中包括多层胶体晶体（21）以及分散在胶体晶体（21）间隙中的光转换材料（22），胶体晶体（21）的粒径能够保证该胶体晶体（21）对蓝光LED芯片发出的光进行反射，这样射到胶体晶体（21）上的蓝光会在经过一次或多次反射后重新射到光转换材料（22）上完成转换。
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