TN ultra-high contrast ratio LCD module This is our demo kit Ultra-high contrast ratio (>600:1) display effect. 3V ,3.3V or 5V operating voltage all is ok. Black ground. Does not show where the black, and light transmission of no displayis very low. It will get different display effect with different backlight options. likes White ,blue,green,red,amber..etc. Segment display with low duty cycle.Not suitable for higher than 8duty cycles Applies to automotive electronics,Instrument,Game machine, , Home appliance, Public information display..etc. Low power consumption. Custom designdisplay only.