Powertip alphanumeric lcd display modules powertip pc2004 a the powertip alphanumeric lcd display 20x4 is an intelligent alphanumeric dot matrix display 20x4 transmissive employing supertwist nematic technology providing a superior viewing angle and high contrast over conventional designs very low on power consumption and ttl and cmos compatible this quality lcd display can be easily interfaced to 4 or 8 bit microprocessors cmos controllers and drivers powertip pc2004 a 20x4 alphanum