how to initialize the LCD Panel

void Lcd_Init(void)
{
  // ... Do things dependant upon the particular type of LCD and your particular target hardware

  // ... WILL require careful reading of documentation !
}

You might also refer to www.8052.com/tutlcd.phtml and www.8052.com/tutlcd2.phtml and, in fact, the whole of www.8052.com/tutorial.phtml - not to mention http://www.keil.com/support/man_c51.htm

void Lcd_Init(void)
{
  // ... Do things dependant upon the particular type of LCD and your particular target hardware

  // ... WILL require careful reading of documentation !
}

You might also refer to www.8052.com/tutlcd.phtml and www.8052.com/tutlcd2.phtml and, in fact, the whole of www.8052.com/tutorial.phtml - not to mention http://www.keil.com/support/man_c51.htm