Comparison of CRT, LCD, Plasma, and OLED

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Parameter CRT LCD Plasma
Contrast Over 15,000:1[1]
Color depth 68 × 109[dubious ][2][3]
Response time 1–8 ms typical (according to manufacturer data), older units could be as slow as 35 ms[4]
Frame rate 60–85 fps typically, some CRTs can go even higher ("200 fps at reduced resolution"[5]);
internally, display refreshed at input frame rate speed
60 fps typically, some can do 120 fps;
internally, display refreshed at eg. 480 or 600 Hz[6]
Environmental influences High altitude pressure difference may cause poor function or buzzing noises[7]
Flicker and eyestrain Depends; as of 2013, most LCDs use PWM (strobing) to dim the backlight[8] which can cause severe eyestrain for some people[9][10][11] although the flicker isn't visible because it is normally done at 200 Hz or faster
Size Up to 150"(3.8m)[12]
Energy consumption and heat generation High[13] Low[13]
with CCFL backlight 30–50% of CRT, with LED backlight 10–25% of CRT
Varies with brightness but usually higher than LCD[14][15][16][17]
Maintenance Hazardous to repair or service due to high-voltage,
requires skilled convergence calibration and adjustments for geographic location changes[18]
Electro-magnetic radiation emission Emits strong radio-frequency electromagnetic radiation[19]
Other The LCD grid can mask effects of spatial and grayscale quantization, creating the illusion of higher image quality.[20]
Many newer models are powered by an external 12V power supply (for thinness), and could (with a special cable) be connected directly to the computer's power supply, possibly saving power, desk space and wall-outlet space
Screen-door effects are more noticeable than LCD when up close, or on larger sizes;[21]
fragile and required to be upright to avoid screen collapse

References[edit]

  1. ^ Display "Technology Shoot-Out: Comparing CRT, LCD, Plasma and DLP Displays", Dr. Raymond M. Soneira, DisplayMate Technologies website
  2. ^ CrutchfieldLCD vs. Plasma
  3. ^ CNET AustraliaPlasma vs. LCD: Which is right for you?
  4. ^ "LCD Monitors, TVs: Electronics – Microcenter", Scroll down and look at the bar on the left to see the number of monitors they offer that have certain specifications. Retrieved April 2013
  5. ^ http://downloads.bbc.co.uk/rd/pubs/whp/whp-pdf-files/WHP169.pdf
  6. ^ "What is 600Hz Sub Field Drive?", Retrieved April 2013
  7. ^ PlasmaTVBuyingGuide.com Plasma TVs at Altitude
  8. ^ Explanation of why pulse width modulated backlighting is used, and its side-effects, "Pulse Width Modulation on LCD monitors", TFT Central. Retrieved June 2012.
  9. ^ Discussions of severe eye-strain with the new MacBook Pro, "Eye strain from LED backlighting in MacBook Pro", Apple Support Communities. Retrieved June 2012.
  10. ^ A discussion of LCD monitor eye-strain, "Is a LED monitor better for eyes than a LCD?", SuperUser. Retrieved June 2012.
  11. ^ An enlightened user requests Dell to improve their LCD backlights, "Request to Dell for higher backlight PWM frequency", Dell Support Community. Retrieved June 2012.
  12. ^ Dugan, Emily (8 January 2008). "6ft by 150 inches – and that's just the TV". The Independent (London). 
  13. ^ a b Tom's Hardware: Power Consumption Benchmark Results for CRT versus TFT LCD "Benchmark Results: Different Brightness Testing"
  14. ^ "LCD vs Plasma TVs". Which?. Retrieved 26 October 2011. 
  15. ^ G4TechTV.ca: Plasma vs LCD power consumption shootout at the Wayback Machine (archived March 5, 2012)
  16. ^ http://www.digitaldirect.co.uk/articles/plasma-vs-lcd-flat-screen-differences
  17. ^ http://www.hometheater.com/gearworks/106gear/
  18. ^ "Monitors: Earth's Magnetic Field Affects Performance". Apple Support Knowledgebase. Apple. Retrieved 21 June 2012. 
  19. ^ eham Amateur Radio Forum "Plasma TV – Mother of All RFI Producers", Retrieved April 2013
  20. ^ M. d’Zmura, T. P. Janice Shen, Wei Wu, Homer Chen, and Marius Vassiliou (1998), “Contrast Gain Control for Color Image Quality,” IS&T/SPIE Conference on Human Vision and Electronic Imaging III, San Jose, California, January 1998, SPIE Vol. 3299, 194–201.
  21. ^ http://www.home-theater-automation-and-electronics.com/PlasmaTelevisionGuide.html