what i have noticed is:

when you use the sleep mode ($5A) it turns off only display like a clear lcd command.

when you use the display off command $59 it completes shut down the display.

i managed to turn on the diplsay again. I'm happy but still the program has a lot of bugs, because i dont know if this procedure is safe for the display.

what i mean:

first i initialize the display by the command $55 which is also the autobound.
this has to be paused for approximatelly 200ms or more. I have put it on 1000 ms.

Then after all i use commands to display pictures.

The first picture is the logo.

In order to shut down the display, i use the $59,$00 inside the gotosub logo, and then i turn off the display.

Then when i use a tag to RFID reader, inside the tag_found command i use the command $59,01 to turn on the display.

i will upload a video so you understand what i do. Do not panic for my bugs.....i know there are a lot but have in mind that i'm not a programmer and i dont know how to use the interrupt command at all.

thanks for understanding.