Comparison CRT / LCD

Cathode Ray Tubes

Liquid Crystal Displays (LCDs)

Advantages

  • Fast repsonse (high resolution possible)

  • Full color (large modulation depth of E-beam)

  • Saturated and natural colors

  • Inexpensive, matured technology

  • Wide angle, high contrast and brightness

 

Advantages

  • Small footprint (approx 1/6 of CRT)

  • Light weight (typ. 1/5 of CRT)

  • Low power consumption (typ. 1/4 of CRT)

  • Completely flat screen - no geometrical errors

  • Crisp pictures - digital and uniform colors

  • No electromagnetic emission

  • Fully digital signal processing possible

  • Large screens (>20 inch) on desktops

Disadvantages

  • Large and heavy (typ. 70x70 cm, 15 kg)

  • High power consumption (typ. 140W)

  • Harmful DC and AC electric and magnetic fields

  • Flickering at 50-80 Hz (no memory effect)

  • Geometrical errors at edges

Disadvantages

  • High price (presently 3x CRT)

  • Poor viewing angle (typ. +/- 50 degrees)

  • Low contrast and luminance (typ. 1:100)

  • Low luminance (typ. 200 cd/m2)