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针对图形式液晶显示（LCD）模块低温无法正常工作的弱点，研制出了一种简便、有效地使液晶在低温下正常工作的电路装置。该装置不改变LCD模块的结构，在不影响电致发光（EL）背光源正常工作的情况下使点阵图形式LCD模块能工作于-35℃左右的低温环境中，扩大了LCD显示器的应用范围。
In view of the weakness that the graphical liquid crystal display (LCD) module can not work normally at low temperature, a circuit device that is convenient and effective for normal operation of the liquid crystal at a low temperature is developed. The device does not change the structure of the LCD module, without affecting the normal operation of the electroluminescent (EL) backlight, the dot matrix LCD module can operate at a low temperature of about -35 ° C., expanding the use of the LCD display range.