NDLI: Improving the Power Efficiency of Micro-LED Displays with Optimized LED Chip Sizes

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Improving the Power Efficiency of Micro-LED Displays with Optimized LED Chip Sizes

Content Provider	MDPI
Author	Hsiang, En-Lin He, Ziqian Huang, Yuge Gou, Fangwang Lan, Yi-Fen Wu, Shin-Tson
Copyright Year	2020
Description	Micro-LED (light-emitting diode) is a potentially disruptive display technology, while power consumption is a critical issue for all display devices. In this paper, we develop a physical model to evaluate the power consumption of micro-LED displays under different ambient lighting conditions. Both power efficiency and ambient reflectance are investigated in two types of full color display structures: red/green/blue (RGB) micro-LEDs, and blue-LED pumped quantum dots color-conversion. For each type of display with uniform RGB chip size, our simulation results indicate that there exists an optimal LED chip size, which leads to 30–40% power saving. We then extend our model to analyze different RGB chip sizes, and find that with optimized chip sizes an additional 12% average power saving can be achieved over that with uniform chip size.
Starting Page	494
e-ISSN	20734352
DOI	10.3390/cryst10060494
Journal	Crystals
Issue Number	6
Volume Number	10
Language	English
Publisher	MDPI
Publisher Date	2020-06-08
Access Restriction	Open
Subject Keyword	Crystals Quantum Science and Technology Telecommunications Micro-led Display Color-conversion Power Consumption Ambient Contrast Ratio
Content Type	Text
Resource Type	Article

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