| TIAN Chao,GUO Shu-xu,LIANG Jing-qiu,LIANG Zhong-zhu,GAO Feng-li.Effects of unit size on current density and illuminance of micro-LED-array[J].Optoelectronics Letters,2017,13(2):84-89 |
| Effects of unit size on current density and illuminance of micro-LED-array |
| Author Name | Affiliation | | TIAN Chao | State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
Semiconductor Manufacturing North China Beijing Corporation, Beijing 100176, China | | GUO Shu-xu | State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China | | LIANG Jing-qiu | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China | | LIANG Zhong-zhu | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China | | GAO Feng-li | State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China |
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| Abstract: |
| A 300 μm×300 μm light emitting diode (LED) chip is divided into nine 80 μm×80 μm units with 30 ?m 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. |
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