When do I need "reset" pin of TFT Screen

Projects Programming
1

I've encountered a reset pin on ILI9341 based 2.8 inch SPI TFT LCD screen. I'm planning to connect it to Reset pin of Arduino but I've doubts.

  1. Does tft.reset() or any hardware reset command need to drive that pin?
  2. After activating power save mode by "writecommand(0x10);", we need to reinitialize the screen at wake up and initialization functions call reset at first as I know. Will there be any problem?
  3. If it is no problem at all what would be possible reasons I would like to have Reset pin connected to a GPIO? A stuck screen maybe? Maybe for robustness in case voltage fluctuation?
2

I usually connects the RESET pin with 3.3v . I don't know any particular use of that pin

3

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