为了使液晶显示器可以在低温等恶劣环境下稳定可靠地工作，需要对液晶显示器进行加固设计。针对传统ITO膜加热模式中经常造成的热场不均匀而导致的“爆屏”现象，文章利用有限元仿真结果并基于热设计基本方法，提出了一种采用多电极加热的新型加热模式。在大量实验的基础上，实验样机不仅实现了环境温度在-50℃时的迅速启动，并避免了在加热过程中可能出现的“爆屏”现象。这种设计拓宽了液晶显示器的工作范围，取得了良好的应用效果。

In order to make liquid crystal displays can be reliable at low temperatures, and the other abominable work environments, it needs the reinforcement design of the liquid crystal displays. The traditional model of ITO films often has led to the thermal field so uneven, even a “screen explosion” phenomenon. This paper based on the basic method of thermal design, and the result of finite element simulation, proposed a new type of multi-electrode heating mode of heat. On the basis of a large number of experiments,testing prototype achieved a prompt start of the ambient temperature is -50℃, but also to avoid “screen explosion” phenomenon. For liquid crystal displays, this design Broadens the scope of work,and obtains a very good effect.