Not familiar with that particular screen,
the 245 and 1 are some sort of clearscreen command?
the loop() part will print the word hello over and over again , try this for a change
void setup()
{
Serial.begin(9600);
pinMode(1, OUTPUT);
Serial.print(245, BYTE);
Serial.print(1, BYTE);
Serial.print("Hello ");
}
void loop ()
{
}