Effects of unit size on current density and illuminance of micro-LED-array

A 300 μm×300 μm light emitting diode（LED） chip is divided into nine 80 μm×80 μm units with 30 μm spacing between adjacent ones. After arraying, the total saturation light output power and the maximum injection current are enhanced by 5.19 times and nearly 7 times, respectively. In addition, the test...

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Bibliographic Details
Published inOptoelectronics letters Vol. 13; no. 2; pp. 84 - 89
Main Author 田超 郭树旭 梁静秋 梁中翥 郜峰利
Format Journal Article
LanguageEnglish
Published Tianjin Tianjin University of Technology 01.03.2017
Springer Nature B.V
Subjects
Arrays
Illuminance
Injection current
Lasers
LED阵列
Light emitting diodes
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
单位
发光二极管
尺寸
微型
注入电流
照度均匀性
电流密度
A
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ISSN1673-1905
1993-5013
DOI10.1007/s11801-017-7002-0

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Summary:A 300 μm×300 μm light emitting diode（LED） chip is divided into nine 80 μm×80 μm units with 30 μm spacing between adjacent ones. After arraying, the total saturation light output power and the maximum injection current are enhanced by 5.19 times and nearly 7 times, respectively. In addition, the test results demonstrate that the illuminance uniformity on the receiving surface reaches the optimum when the spacing between the arrays is equal to the maximum flat condition. The larger the number of arrays, the greater the area with uniform illuminance on the receiving surface.
Bibliography:12-1370/TN
A 300 μm×300 μm light emitting diode（LED） chip is divided into nine 80 μm×80 μm units with 30 μm spacing between adjacent ones. After arraying, the total saturation light output power and the maximum injection current are enhanced by 5.19 times and nearly 7 times, respectively. In addition, the test results demonstrate that the illuminance uniformity on the receiving surface reaches the optimum when the spacing between the arrays is equal to the maximum flat condition. The larger the number of arrays, the greater the area with uniform illuminance on the receiving surface.
spacing saturation uniformity receiving reaches chips illumination sustain maintain covering
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ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-017-7002-0