Thanks for your reply David. I've used LCD assistant for monocrome logo. I've tried differents outputs for the logo. Code shows image, but not I spected. ¿How many pixels/byte must I select for a true dimension output?
I only have a Mega for this project. My function reads an array in another tab with PROGMEM label in code. The images I need to load are smaller. With 80x50 pixels aprox I can do my TFT interface.
If I store in PROGMEM it shows one image, and if I store in dynamic memory, there's memory problems...
I attach pictures with 4 pixels/byte
I little plus of help since my goal is very near. Thanks!!

