机载液晶显示器的散热结构优化  

An Approvement on Heat Dissipation Structure of Ruggedized Airborne TFT-LCD

作　　者：黄晓刚 叶雷 徐飞[2] 李忠良[2] 杨斌[2] HUANG Xiaogang;YE Lei;XU Fei;LI Zhongliang;YANG Bin(Aviation Military Affairs Deputy Office of PLA Navy in Nanjing Zone,Nanjing 210012,CHN;The 55th Research Institute of China Electronic Technology Group Corporation,Nanjing 210016,CHN)

机构地区：[1]海军驻南京地区航空军事代表室,南京210012 [2]中国电子科技集团公司第五十五研究所,南京210016

出　　处：《光电子技术》2019年第1期30-33,38,共5页Optoelectronic Technology

摘　　要：分析了机载液晶显示器(TFT-LCD)结构及其液晶材料温度特性。研究了液晶显示器在高温环境下容易出现的黄斑现象及其原理。分析了机载加固液晶显示器的热传导特性。提出了两种优化方案并分别进行了有限元分析,对比分析数据后选用了其中优化较好的方案进行实验验证。实验表明改进方案可以有效优化散热结构,降低液晶屏高温下的温升。The structure of airborne TFT-LCD and the temperature characteristics of LC materials were analyzed.The phenomena and principles of macula which easily appeared in the high temperature environment of the LCD were studied.The heat conduction characteristics of the airborne TFT-LCD were analyzed.Two optimization schemes were proposed and analyzed by finite element method,after data comparison and analysis,the better one was selected for experimental verification.The experiment shows that the improved scheme could effectively optimize the heat dissipation structure and reduce the working temperature of LCD at high temperature.

关 键 词：薄膜晶体管液晶显示器 高温黄斑 散热 

分 类 号：TN873.93[电子电信—信息与通信工程]