论述加固机载TFT－LCD设计中温度控制技术所涉及的问题，实现了机载TFT－LCD显示器在－43℃至71C的范围内正常工作。在研究TFT－LCD特点的基础上，提出了利用ITO膜加热液晶模块以及采用加热丝加热背光源CCFL灯管的加热方式，设计了加热电路的方法，从而确保了机载TFT－LCD在低温环境下的启动和正常工作。基于热设计的基本方法，分析并提出了加固机载TFT－LCD高温工作时的散热解决方案。作为一个自动温控系统，扩展了机载TFT－LCD的工作温度范围。在实际设计中获得了满意的效果。

Some problems on temperature control technology of the rugged airborne TFT-LCD are discussed and the operation temperature of － 43℃～ +71℃ for the airborne TFT-LCD is achieved. Based on the characteristic analysis of TFT-LCD,some methods of the circuit heating are designed to heat LCD module with ITO and heat CCFL with heating wire. Thus the airborne TFT-LCD can be started up and operated under low temperature. Based on thermal design methods,the cooling scheme for the airborne TFT-LCD operating under high temperature is also proposed. The operation temperature range of the ruggedized airborne TFT-LCD is increased with the automatic temperature control system.