Zero-Optical-Distance Mini-LED Backlight with Cone-Shaped Light Coupling Microstructures-Reference-Cited by-同舟云学术

Zero-Optical-Distance Mini-LED Backlight with Cone-Shaped Light Coupling Microstructures

Published:2023-01-31 Issue:2 Volume:13 Page:241
ISSN:2073-4352
Container-title:Crystals
language:en
Short-container-title:Crystals

Author:

Lin Zibin¹,Jiang Haonan¹,Ye Daochun²³,Zhang Wenyan²³,Chen Enguo¹²³^ORCID,Ye Yun¹²³,Xu Sheng¹²³,Yan Qun¹²³^ORCID,Guo Tailiang²³

Affiliation:

1. School of Advanced Manufacturing, Fuzhou University, Quanzhou 362200, China

2. College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China

3. Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China

Abstract

This paper presents a zero-optical-distance mini-LED backlight with cone-shaped light coupling microstructures to achieve an ultra-thin backlight architecture (~0.1 mm thickness) by combining the characteristics of direct-lit and edge-lit backlights. There is no gap between the light guide plate (LGP) and the reflector, as well as between the LGP and the mini-LED embedded in the reflector. The illuminance uniformity and light extraction efficiency (LEE) of the whole structure reach 91.47% and 77.09%, respectively. Nine sub-modules are spliced together to realize 2D local dimming with 0.29% crosstalk. The structure shows high optical performance while reducing the thickness of the backlight module, which is of great significance for the development of mini-LED backlights.

Funder

National Natural Science Foundation of China

Fujian Provincial Key Science and Technology Project

Fujian Provincial Natural Science Foundation Project

Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China

Publisher

MDPI AG

Subject

Inorganic Chemistry,Condensed Matter Physics,General Materials Science,General Chemical Engineering

Link

https://www.mdpi.com/2073-4352/13/2/241/pdf

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