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

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 techno...

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Bibliographic Details
Published in:IEEE access 2020, Vol.8, p.138823-138833
Main Authors: Huang, Che-Hsuan, Chang, Shu Hsiu, Liaw, Been-Yu, Liu, Cheng-Yi, Chou, Chia-Yueh, Zhou, Jia-Rou, Lin, Chien-Chung, Kuo, Hao-Chung, Song, Li-Jun, Li, Feng, Liu, Xinke
Format: Article
Language:English
Subjects:
backlight
Backlights
Color
Crosstalk
Decoupling
display
Display devices
down-conversion theorem
Energy conversion efficiency
Energy dissipation
Energy exchange
energy loss
Energy measurement
Gallium nitrides
Image color analysis
Light emitting diodes
Mathematical analysis
Mathematical model
Mini-light-emitting diode
Optical losses
Saturation (color)
Semiconductor device measurement
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Summary: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.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2020.3010026