Performance enhancement of LED displays through optimized light distribution

IF 3.7 2区工程技术 Q1 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

Displays Pub Date : 2025-03-18 DOI:10.1016/j.displa.2025.103039

Zhihong Zhao , Qi Yao , Shenfei Chen , Peiyu Wu , Yuhui Zhang , Wenqian Xu , Bangyong Sun , Dong Wang , Ziyi Wang , Jiawei Feng

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引用次数: 0

Abstract

The improvement in light-emitting diode (LED) performance has facilitated its widespread application in areas such as urban media screens and electronic displays. However, most commercial LEDs use a circularly symmetric radiation pattern, which leads to issues like high energy consumption, significant spill light, and privacy concerns during practical applications. This study investigates the impact of light distribution in LED displays on visual performance and energy consumption. Through software simulations and experimental measurements, we established a quantitative model linking beam angle with the maximum viewing angle and energy consumption of displays. The results show that a display with a 60° beam angle consumes only half the energy of a display with a 120° beam angle, while achieving 89% of the latter’s maximum viewing angle. These findings highlight the need to balance visual performance and energy consumption based on specific application scenarios. This research provides a new technical approach for optimizing the visual performance and energy efficiency of LED displays, particularly valuable for reducing high energy consumption and severe light pollution in outdoor LED displays.

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通过优化配光优化LED显示屏的性能

发光二极管（LED）性能的提高促进了其在城市媒体屏幕和电子显示等领域的广泛应用。然而，大多数商用led使用圆形对称辐射模式，这导致在实际应用中出现高能耗、明显的溢出光和隐私问题。本研究探讨了LED显示屏的光分布对视觉性能和能耗的影响。通过软件仿真和实验测量，建立了波束角与显示器最大视角和能耗之间的定量模型。结果表明，60°光束角显示器的能量消耗仅为120°光束角显示器的一半，而后者的最大视角达到89%。这些发现强调了基于特定应用场景平衡视觉性能和能耗的必要性。本研究为优化LED显示屏的视觉性能和能效提供了新的技术途径，对降低户外LED显示屏的高能耗和严重光污染具有重要价值。

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来源期刊

Displays 工程技术-工程：电子与电气

CiteScore

4.60

自引率

25.60%

发文量

138

审稿时长

92 days

期刊介绍： Displays is the international journal covering the research and development of display technology, its effective presentation and perception of information, and applications and systems including display-human interface. Technical papers on practical developments in Displays technology provide an effective channel to promote greater understanding and cross-fertilization across the diverse disciplines of the Displays community. Original research papers solving ergonomics issues at the display-human interface advance effective presentation of information. Tutorial papers covering fundamentals intended for display technologies and human factor engineers new to the field will also occasionally featured.