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1. WO2020063153 - LED DISPLAY SCREEN

Publication Number WO/2020/063153
Publication Date 02.04.2020
International Application No. PCT/CN2019/100477
International Filing Date 14.08.2019
IPC
H01L 33/52 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
48characterised by the semiconductor body packages
52Encapsulations
H01L 33/00 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
CPC
G09F 9/33
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30in which the desired character or characters are formed by combining individual elements
33being semiconductor devices, e.g. diodes
H01L 33/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
H01L 33/52
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
48characterised by the semiconductor body packages
52Encapsulations
Applicants
  • 深圳光峰科技股份有限公司 APPOTRONICS CORPORATION LIMITED [CN]/[CN]
Inventors
  • 胡飞 HU, Fei
  • 李士杰 LI, Shijie
  • 李屹 LI, Yi
Priority Data
201811142419.528.09.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) LED DISPLAY SCREEN
(FR) ÉCRAN D'AFFICHAGE À DEL
(ZH) 一种LED显示屏
Abstract
(EN)
An LED display screen (1), comprising a plurality of LED light sources (11, 131) distributed in an array, the LED light sources (11, 131) comprising an LED chip (111) and packaging resin (112) that covers a surface of the LED chip (111), wherein the thickness (h) range of the packaging resin (112) is 1mm-3mm. By means of enlarging the thickness (h) of the packaging resin (112), large-angle light emitted by the LED light sources (11, 131) is further reflected so as to compress the light exit angles of the LED light sources (11, 131), thus reducing the crosstalk of light beams between each pixel.
(FR)
L'invention concerne un écran d'affichage À DEL (1), comprenant une pluralité de sources de lumière à DEL (11, 131) réparties dans un réseau, les sources de lumière à DEL (11, 131) comprenant une puce de DEL (111) et une résine d'encapsulation (112) qui recouvre une surface de la puce de DEL (111), la plage d'épaisseur (h) de la résine d'encapsulation (112) étant de 1 mm à 3 mm. Au moyen de l'agrandissement de l'épaisseur (h) de la résine d'encapsulation (112), de la lumière à grand angle émise par les sources de lumière à DEL (11, 131) est en outre réfléchie de façon à compresser les angles de sortie de lumière des sources de lumière à DEL (11, 131), réduisant ainsi la diaphonie de faisceaux lumineux entre chaque pixel.
(ZH)
一种LED显示屏(1),包括多个阵列分布的LED光源(11,131),该LED光源(11,131)包括LED芯片(111)以及覆盖在LED芯片(111)表面的封装树脂(112),其中,封装树脂(112)的厚度(h)范围为1mm-3mm。通过增加封装树脂(112)的厚度(h),进一步对LED光源(11,131)出射的大角度光进行反射,以压缩LED光源(11,131)的光出射角,进而减小各像素间的光线串扰。
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Latest bibliographic data on file with the International Bureau