10.1寸液晶屏幕总成散热模拟分析及优化设计  

Simulation Analysis and Optimization Design for the Heat Dissipation of 10.1-Inch LCD Module

作　　者：胡星晔[1] 陈贵清[1] HU Xing-ye;CHEN Gui-qing(School of Mechanical and Intelligent Manufacturing, Fujian Chuanzheng Communications College, Fuzhou 350007, China)

机构地区：[1]福建船政交通职业学院机械与智能制造学院,福州350007

出　　处：《唐山学院学报》2021年第6期34-41,共8页Journal of Tangshan University

基　　金：福建省中青年教师教育科研项目(JZ180354);福建省交通运输科技项目(201831)。

摘　　要：LED在液晶显示器使用中的发热问题,是影响其发光效率和画面质量的关键技术难题之一。为此利用Solidworks Simulation软件对某公司10.1寸手持平板电脑产品的液晶屏幕总成进行了散热效果模拟。综合主要发热源LED和驱动IC的发热分析结果,表明在金属背板和绝缘胶带的长宽尺寸均已固定的情况下,需通过调整金属背板和绝缘胶带的材质与厚度优化屏幕总成的散热性能。结合产品实际,改用热导率更高的铝合金AL5052背板和石墨片绝缘胶带,同时增加金属背板和绝缘胶带的厚度,可使稳态工况下最高温度从优化前的49.8℃下降到36.1℃,有效提升了液晶屏幕总成的散热效果。样品实物温升和机械强度测试均证明了研究的准确性,可满足实际生产组装的需要。The thermal issue of LED in its use has become one of the key technologies affecting the luminous efficiency and picture quality.Aiming at this problem,the Solidworks Simulation software is used for the simulation of heat dissipation effect of 10.1-inch LCD module in a company.The heating analysis results of LED and the driver IC show that it is necessary to adjust the materials and thickness of metal back panel and insulating tape to optimize the heat dissipation performance of the screen when their length and width are fixed.Combined with the actual product,by using aluminum AL5052 back panel and graphite insulating tape which have higher thermal conductivity,and by increasing their thickness at the same time,the maximum temperature under the steady-state condition has decreased from 49.8℃before the optimization to 36.1℃.In this way,the heat dissipation effect of LCD module is improved effectively.The temperature rise and mechanical strength test in the sample has proved the accuracy of the study,which can satisfy the needs of actual production and assembly.

关 键 词：液晶屏幕总成 散热 发光二极管 驱动IC 

分 类 号：TN873[电子电信—信息与通信工程] O346[理学—固体力学]