The liquid crystal display module is the display component of the power terminal, instrumentation, etc., and its status is equivalent to the picture tube in the CRT. The module is mainly divided into screen and backlight components. The two parts are assembled together, but are independent of each other when working (that is, the circuits are not related).

The common digital display liquid crystal display modules are as follows:
1. Counting module
2. Metering module
3. Timing module