WO2023123489 - MICRO LED STRUCTURE AND MICRO LED PROJECTOR
National phase entry is expected:
Publication Number
WO/2023/123489
Publication Date
06.07.2023
International Application No.
PCT/CN2021/143993
International Filing Date
31.12.2021
Title **
[English]
MICRO LED STRUCTURE AND MICRO LED PROJECTOR
[French]
STRUCTURE DE MICRO-DEL ET PROJECTEUR À MICRO-DEL
Applicants **
JADE BIRD DISPLAY (SHANGHAI) COMPANY
LI, Qiming
No.1889 Hongyin Road, Pudong New Area
Shanghai 200000, CN
Inventors
GUO, Jian
No.1889 Hongyin Road, Pudong New Area
Shanghai 200000, CN
XU, Huiwen
No.1889 Hongyin Road, Pudong New Area
Shanghai 200000, CN
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
CNIPA
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1756 | |
| EPO | Filing, Examination | 12139 | |
| Japan | Filing | 595 | |
| South Korea | Filing | 482 | |
| USA | Filing, Examination | 4710 |
Total: 19682 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
Disclosed herein are a micro LED structure and a micro LED projector. The micro LED structure comprises: a micro mesa structure and a micro lens formed above the micro mesa structure; the top surface area of the micro mesa structure is less than the bottom surface area of the micro mesa structure; and, the distance between the focal point of the micro lens and the top of the micro mesa structure is not more than 70%of the height of the micro mesa structure. The present disclosure increases the light emitting efficiency, control the chief ray angle of the micro LED structure and reduce the loss of the light emitting from the sidewall of the mesa structure.[French]
L'invention concerne une structure de micro-DEL et un projecteur à micro-DEL. La structure de micro-DEL comprend : une structure de micro-mésa et une microlentille formée au-dessus de la structure de micro-mésa ; la zone de surface supérieure de la structure de micro-mésa est inférieure à la zone de surface inférieure de la structure de micro-mésa ; et la distance entre le point focal de la microlentille et la partie supérieure de la structure de micro-mésa n'est pas supérieure à 70 % de la hauteur de la structure de micro-mésa. La présente invention augmente l'efficacité d'émission de lumière, commande l'angle de rayon principal de la structure de micro-DEL et réduit la perte de la lumière émise par la paroi latérale de la structure de mésa.