Optimal chip size for reducing the power consumption of micro-LED displays

En-Lin Hsiang; Ziqian He; Yuge Hung; Fangwang Gou; Yi-Fen Lan; Shin-Tson Wu

doi:10.1117/12.2578671

5 March 2021 Optimal chip size for reducing the power consumption of micro-LED displays

En-Lin Hsiang, Ziqian He, Yuge Hung, Fangwang Gou, Yi-Fen Lan, Shin-Tson Wu

Proceedings Volume 11708, Advances in Display Technologies XI; 117080M (2021) https://doi.org/10.1117/12.2578671
Event: SPIE OPTO, 2021, Online Only

Abstract

Micro-light-emitting-diode (μLED) displays with low power consumption are highly desirable for the mobile devices powered by batteries. However, since the smaller LED chip size corresponds to lower optical efficiency, this advantage is compromised. In this paper, we develop a model to evaluate the power consumption of micro-LED displays based on ambient contrast ratio. Then, the optimal μLED chip sizes to achieve the lowest power consumption for smartphones, laptop computers, and TVs, are obtained. Furthermore, we propose to employ different RGB chip sizes in μLED displays. In comparison with the optimal results with uniform LED chip size, our new design offers an additional 12% average power saving for real image contents.

Conference Presentation

Citation Download Citation

En-Lin Hsiang, Ziqian He, Yuge Hung, Fangwang Gou, Yi-Fen Lan, and Shin-Tson Wu "Optimal chip size for reducing the power consumption of micro-LED displays", Proc. SPIE 11708, Advances in Display Technologies XI, 117080M (5 March 2021); https://doi.org/10.1117/12.2578671

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