1000 x thx Dave for your help!
I tried all your suggestions, but nothing on display. Also I changed 3 lcds for test ,I tried another ways to initialise, but no succes.
I can make a photo at high resolution with LCD, but is only light, nothing else.
Its possible that LCD init is well, but problems come from contrast?
How I can make a loop with set contrast with values from $00 to $FF ?
Note: the LCD Bias must set to 1/5