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Molecular Crystals and Liquid Crystals Volume 676, 2018 - Issue 1: 22nd International Symposium on Advanced Display Materials and Devices (ADMD2018), Part 1
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Articles

LED with a Zener Chip coated with a highly reflective material

Jae Keon KimDepartment of Sensor and Display Engineering, Kyungpook National University, Daegu41566, Korea; ;Aircraft System Technology Group, Korea Institute of Industrial Technology (KITECH), Daegu42994, Korea
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Ma Eum HanSchool of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu41566, Korea;
,
Jun Yeop LeeSchool of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu41566, Korea; ;Aircraft System Technology Group, Korea Institute of Industrial Technology (KITECH), Daegu42994, Korea
,
Seong Ho KongDepartment of Sensor and Display Engineering, Kyungpook National University, Daegu41566, Korea; ;School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu41566, Korea; Correspondence[email protected] [email protected]
&
Daewoong JungAircraft System Technology Group, Korea Institute of Industrial Technology (KITECH), Daegu42994, KoreaCorrespondence[email protected] [email protected]
Pages 114-122 | Published online: 11 Jul 2019
 
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Abstract

In this study, we have studied coating method using high reflective White silicon on the whole Zener diode in order to resolve the reducing the luminance of the LED problem caused by the Zener diode that are used to achieve electrical stability of White LED. Zener chips were placed inside the LED cavity to provide electrical stability, and the highly reflective white silicon was coated all over the surface of the Zener chip to solve the problem of LED luminance degradation caused by Zener chips. As a result, LED with white silicon has higher luminance of 3.3% than LED without it.

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