Effect of Patterned Board Configuration on Luminous and Chromatic Performance for COB Packaged LED

ZHANG Qing-mei; ZHU Da-qing

doi:10.3788/fgxb20143510.1276

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Effect of Patterned Board Configuration on Luminous and Chromatic Performance for COB Packaged LED

更新时间：2020-08-12

- Effect of Patterned Board Configuration on Luminous and Chromatic Performance for COB Packaged LED
- Chinese Journal of Luminescence Vol. 35, Issue 10, Pages: 1276-1282(2014)
- 作者机构：
  
  1. 华侨大学信息科学与工程学院,福建厦门,361021
  2. 福建省光传输与变换重点实验室,福建厦门,361021
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143510.1276
  CLC： TN312+.8
- Received：19 May 2014，
  
  Revised：11 August 2014，
  
  Published：03 October 2014
- 稿件说明：
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张清梅, 朱大庆,. 图案化基板对集成封装LED的光色品质的影响[J]. 发光学报, 2014,35(10): 1276-1282

ZHANG Qing-mei, ZHU Da-qing,. Effect of Patterned Board Configuration on Luminous and Chromatic Performance for COB Packaged LED[J]. Chinese Journal of Luminescence, 2014,35(10): 1276-1282
张清梅, 朱大庆,. 图案化基板对集成封装LED的光色品质的影响[J]. 发光学报, 2014,35(10): 1276-1282 DOI： 10.3788/fgxb20143510.1276.

ZHANG Qing-mei, ZHU Da-qing,. Effect of Patterned Board Configuration on Luminous and Chromatic Performance for COB Packaged LED[J]. Chinese Journal of Luminescence, 2014,35(10): 1276-1282 DOI： 10.3788/fgxb20143510.1276.

摘要

为了分析图案化结构对LED封装出光效率和空间颜色分布的影响，采用蒙特卡洛光线追迹的方法进行仿真分析。模拟结果表明：图案化基板不但能提高LED的出光效率，而且能改变光源的空间颜色分布。对于平面基板和带反光杯阵列基板加图案化结构，在本文的参数下，倒圆锥倾斜角

=25时，出光效率分别比传统平面封装提高66.2%、73.6%。无图案平面基板和带反光杯阵列平面基板结构的颜色均匀度分别为0.697和0.777；当

=30时，颜色均匀度分别为0.799和0.814。

Abstract

A patterned board configuration for light-emitting diode chip-on-board devices (LED COBs) with regular concave structures on it was presented. Optical models of LED chip and the phosphor were presented

and a Monte Carlo ray-tracing simulation procedure was used to simulate the light emission process. The inclination angle of the concave was the controlling parameter. The results show that the patterned board can not only improve the light extraction efficiency but also the angular color uniformity (ACU) of LED. When the inclination angles

=25

simulations show a maximum 66.2% and 73.6% light extraction efficiency improvement for this configuration compared with the conventional configuration

respectively. Without the pattern

the ACU of LED are 0.695 and 0.777 for planar board and for the board with reflecting cups

respectively. While with the pattern

the ACU are 0.799 and 0.814

respectively

when

=30.

关键词

Keywords

references

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