摘要
为保证有源液晶显示器（Ａｍ－ＬＣＤ）能在低温环境和温度变化较快的情况下可靠地工作，必须掌握器件内部温度场的分布及其对迅变温度的动态响应，以便提供间接测量器件内部温度的理论依据．通过经典解析法求解得到了内部温度分布和动态响应，并用温度传感器去测试阶跃响应，其响应曲线与经典解析法的解相符．上述２种结果表明液晶屏后表面上的温度在动态情况下要滞后环境温度４３ ｓ．故其后表面温度不能及时地反映环境温度的变化．
In order to assure that the Active Matrix Liquid Crystal Display(Am - LCD) can work reliably under the condition of low temperature and rapidly changing temperature. The distribution of temperature field inside device and its dynamical temperature response must be well-known to provide the theoreticol basis for indirect measure to the temperature inside device. By means of classical analytics, the temperature distribution and dynamical response are obtained. By using temperature transducer to test for step response, its curve goes well with the solation of classical analytics. Both above results show that the tamperature on the rear surface of the screen lags to 43 s behind the one in the-dynamical environment. The temperature on rear surface does not indicate in time the change of environmental temperature.
出处
《安徽机电学院学报》
2000年第3期10-13,共4页
Journal of Anhui Institute of Mechanical and Electrical Engineering
基金
中国人民解放军总装备部资助项目
关键词
液晶显示器
温度测量
非稳态响应
微分方程
liquid crystal display
temperature measurement
unsteady response
differential function
