RGB颜色模型
发光二极管
光学
材料科学
光电子学
二极管
蓝移
LED灯
物理
计算机科学
人工智能
光致发光
作者
Fangwang Gou,En-Lin Hsiang,Guanjun Tan,Pei-Ting Chou,Yun-Li Li,Yi-Fen Lan,Shin-Tson Wu
出处
期刊:Optics Express
[The Optical Society]
日期:2019-05-14
卷期号:27 (12): A746-A746
被引量:82
摘要
Sidewall emission of a micro-scale light emitting diode (micro-LED) improves the light extraction efficiency, but it causes mismatched angular distributions between AlGaInP-based red micro-LED and InGaN-based blue/green counterparts due to material difference. As a result, color shift of RGB micro-LED displays may become visually noticeable. To address this issue, we first analyze the angular distributions of RGB micro-LEDs and obtain good agreement between simulation and experiment. Next, we propose a device structure with top black matrix and taper angle in micro-LEDs, which greatly suppresses the color shift while keeping a reasonably high light extraction efficiency.
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