| 摘要 |
Conventional transparent LCD displays have a transparent heater layer extending across the display, which is used to maintain the display above its minimum oper ating temperature. In the present invention, the display also has a resistive metal st rip, supported in a frame of low thermal conductivity, extending around its edge. A temperature se nsor is mounted at the centre of the display and another is mounted at the edge. The sen sors are connected to a heater control unit, which controls power supplied to the heater layer and the edge strip to maintain the temperatures at the centre and edge of the display eq ual.
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