Research on a Novel GaN-Based Converted Mini-LED Backlight Module via a Spectrum-Decouple System

Che-Hsuan Huang; Shu Hsiu Chang; Been-Yu Liaw; Cheng-Yi Liu; Chia-Yueh Chou; Jia-Rou Zhou; Chien-Chung Lin; Hao-Chung Kuo; Li-Jun Song; Feng Li; Xinke Liu

doi:10.1109/ACCESS.2020.3010026

IEEE Access (Jan 2020)

Research on a Novel GaN-Based Converted Mini-LED Backlight Module via a Spectrum-Decouple System

Che-Hsuan Huang,
Shu Hsiu Chang,
Been-Yu Liaw,
Cheng-Yi Liu,
Chia-Yueh Chou,
Jia-Rou Zhou,
Chien-Chung Lin,
Hao-Chung Kuo,
Li-Jun Song,
Feng Li,
Xinke Liu

Affiliations

Che-Hsuan Huang: ORCiD; Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science, College of Electronics and Information Engineering, Shenzhen University, Shenzhen, China
Shu Hsiu Chang: Institute of Photonic System, National Chiao Tung University, Hsinchu City, Taiwan
Been-Yu Liaw: College of Information Science and Engineering, Fujian University of Technology, Fuzhou, China
Cheng-Yi Liu: Department of Chemical and Materials Engineering, National Central University, Taoyuan City, Taiwan
Chia-Yueh Chou: ORCiD; Department of Chemical and Materials Engineering, National Central University, Taoyuan City, Taiwan
Jia-Rou Zhou: Department of Photonics, Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu City, Taiwan
Chien-Chung Lin: ORCiD; Institute of Photonic System, National Chiao Tung University, Hsinchu City, Taiwan
Hao-Chung Kuo: Department of Photonics, Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu City, Taiwan
Li-Jun Song: Research Center of Guangdong Intelligent Charging and System Integration Engineering Technology, Shenzhen Winsemi Microelectronics Company Ltd., Shenzhen, China
Feng Li: Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science, College of Electronics and Information Engineering, Shenzhen University, Shenzhen, China
Xinke Liu: ORCiD; Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science, College of Electronics and Information Engineering, Shenzhen University, Shenzhen, China

DOI: https://doi.org/10.1109/ACCESS.2020.3010026
Journal volume & issue: Vol. 8
pp. 138823 – 138833

Abstract

Read online

Owing to the development of modern display technology, micro- and mini-light-emitting diodes (LEDs) have affected technological advancements in the display industry. The structure of mini-LEDs is completely different than that of traditional LED backlights because the former employs a display technology with an LED array structure, optical resonant cavity, and color conversion layer. Display backlight technology encounters difficulty in achieving a truly effective energy-loss mechanism when designing or measuring mini-LED performance. The present study proposes three major mini-LED energy loss mechanisms: cross-talk, resonant, and quantum conversion losses. Herein, the spectrum was obtained through the integrating sphere system, and the calculation mechanism was formed by the down-conversion theorem as the decoupling principle, which successfully calculated the independent energy-loss efficiency of each mechanism and effectively deduced the brightness and color saturation performance of this design combination.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

About the journal

Abstract

Keywords