if(seg_count==0)				 
{	  							  //remove switch case;to if else latency
     address(0x01);
	 write(LCD_digits[0]);
	 seg_count=1; 
}
if(seg_count==1)
{
     address(0x02);
	 write(LCD_digits[1]);
	 seg_count=2; 
}

if(seg_count==2)
{
      address(0x04);
	  write(LCD_digits[2]);
	  seg_count=3; 
}
...