Liquid crystal display screen heating device and control method
A liquid crystal display and heating device technology, which is applied to electric heating devices, optics, instruments, etc., can solve the problems of low heating control accuracy, and achieve the effect of ensuring normal display and high heating control accuracy.
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[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0038] like figure 1 , image 3 The embodiment shown is a liquid crystal display heating device, comprising a metal wire 2 arranged on the inner surface of a liquid crystal display 1 of an electric energy meter, a single-chip microcomputer 3, a memory 4, a temperature detection circuit 5 and a heating device arranged in the electric energy meter. Control circuit 6; the single-chip microcomputer is electrically connected to the memory and the temperature detection circuit respectively, the metal wire is electrically connected to the VCC and the heating control circuit respectively, and the PWM switch signal output pin of the single-chip microcomputer and the metal wire heating control signal TXD pin are both electrically connected to the heating control circuit. connect. The metal wire is composed of a metal electroplating layer, and the metal w...
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