Thermal Analysis of Large Scale LED Back Light Unit

ZHOU Hao; MA Qing; YOON Dae-keun; SHANG Fei; RYU Bong-yoel; HUANG Xin

doi:10.3788/YJYXS20112603.0320

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Thermal Analysis of Large Scale LED Back Light Unit

Device Technology & Physics | 更新时间：2020-08-12

- Thermal Analysis of Large Scale LED Back Light Unit
- Chinese Journal of Liquid Crystals and Displays Vol. 26, Issue 3, Pages: 320-323(2011)
- 作者机构：
  
  1. 北京京东方光电科技有限公司北京,100176
  2. 北京化工大学机械工程学院北京,100029
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20112603.0320
  CLC： TN141.9
- Received：25 September 2010，
  
  Revised：28 November 2010，
  
  Published Online：20 June 2011，
  
  Published：20 June 2011
- 稿件说明：
移动端阅览
周昊, 马青, 尹大根, 尚飞, 柳奉烈, 黄鑫. 大尺寸LED背光源的热分析[J]. 液晶与显示, 2011,26(3): 320-323

ZHOU Hao, MA Qing, YOON Dae-keun, SHANG Fei, RYU Bong-yoel, HUANG Xin. Thermal Analysis of Large Scale LED Back Light Unit[J]. , 2011,26(3): 320-323
周昊, 马青, 尹大根, 尚飞, 柳奉烈, 黄鑫. 大尺寸LED背光源的热分析[J]. 液晶与显示, 2011,26(3): 320-323 DOI： 10.3788/YJYXS20112603.0320.

ZHOU Hao, MA Qing, YOON Dae-keun, SHANG Fei, RYU Bong-yoel, HUANG Xin. Thermal Analysis of Large Scale LED Back Light Unit[J]. , 2011,26(3): 320-323 DOI： 10.3788/YJYXS20112603.0320.

摘要

以119.4 cm(47 in)侧光式LED背光源为模型

采用有限元方法对其进行热分析

计算出不同情况下的温度场。由计算结果可知:采用铝材做背板

散热性能比电镀锌钢板(EGI)材料好20%以上。对LED背光源的温度场进行了实际测量

计算结果和实测温度相一致

证明所提出的分析方法是可行的。

Abstract

The temperature field of 119.4 cm(47 in) LED backlight unit was analyzed by finite element method. As a result

the efficiency of Al back cover is better than that of EGI one over 20%. Comparing the calculation result with the real temperature

the relative error is only 1.65%.The experimental results show that the temperature field analysis method for LED backlight unit is feasible.

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Keywords

references

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