How to display the total usage time of the device and display device

摘要

The total usage time display method and the display device of the present invention allow the total usage time of the device to be counted and displayed and can be simply confirmed. Conventionally, only the present time is counted and displayed, and the total usage time of the device is counted The purchaser of the device can not confirm whether the product is displayed for a long period of time or whether it is a product that is resold after it has been repaired and repaired. If it is requested to repair the fault, the deterioration due to long-, And it was also difficult to confirm the basic heat run time in the production of the device.;The present invention uses the timer function of the microcomputer more variouby counting and displaying the total usage time of the device in the EEPROM, and the purchaser can easily confirm whether the device is a product that is displayed for a long time or a product to be resold, In addition, it is possible to precisely check the heat run time and prevent defects due to insufficient heat run time.