Luminous Properties of Red, Green, and Blue Micro-LEDs and the Impacts on Color Gamut

被引：9

作者：

Tong, Chang-Dong ^{[1
]}

Li, Guang-Yao ^{[1
]}

Zheng, Xi ^{[1
]}

Chen, Can-Bin ^{[1
]}

Ke, Zhi-Jie ^{[2
]}

Wu, Rong-Xing ^{[3
]}

Wu, Ting-Zhu ^{[1
]}

Lu, Yi-Jun ^{[1
]}

Chen, Zhong ^{[1
]}

Zhuang, Jian-Bang ^{[4
]}

Guo, Wei-Jie ^{[1
]}

机构：

[1] Xiamen Univ, Sch Elect Sci & Engn, Dept Elect Sci, Natl Innovat Platform Fus Ind & Educ inIntegrated, Xiamen 361005, Peoples R China

[2] Xiamen Changelight Co Ltd, Xiamen 361101, Peoples R China

[3] Amoi Intelligent IOT Technol Co Ltd, Xiamen 361101, Peoples R China

[4] AUO Xiamen Co Ltd, Xiamen 361102, Peoples R China

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2023年 / 70卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Light emitting diodes; Temperature distribution; Temperature measurement; Pulse width modulation; Distance measurement; Technological innovation; Substrates; Color gamut; display; micro-LEDs; INGAN; EMISSION;

D O I：

10.1109/TED.2023.3247362

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Electrical-chromatic characteristics of red, green, and blue micro-LEDs (10 x 10 mu m) are investigated at temperatures ranging from 300 to 340 K. The external quantum efficiency (EQE) of red micro-LEDs decreases significantly with the increasement in temperature, sug-gesting that heat dissipation is crucial for red micro-LEDs. The impacts of temperature and driving current on the chromaticity coordinates of the light emission from micro-LEDs are determined. When the trichromatic micro-LEDs are driven by the currents corresponding to the maximum EQE, the influence of temperature on the color gamut is limited, facilitating the achievement of high color gamut and high efficiency.

引用

页码：1733 / 1738

页数：6

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