Engineering:Comparison of CRT, LCD, and plasma

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Further information: Engineering:Comparison of display technology
Parameter CRT LCD Plasma OLED
Static Contrast ratio Over 15,000:1[1] 150 to 6,600:1[2][3] 3800:1[4] "∞" "Inf:1"[5]

Unable to be calculated as black levels are zero.

Peak Luminosity 176 cd/m²[1] 276-1460 cd/m²[3] 50-200 cd/m²[1] 100-700 cd/m² [6]
Color depth 24-bit per pixel resolution; offers better resolution for grayscale 6 to 10-bit per subpixel panels;[7] smaller dot pitch, better detail[8] 6 to 8-bit per subpixel panels; best color gamut[9][resource out of date, not impartial][10][resource out of date; source not credible/reputable]
Response time Less than 1 µs[11] 1–8 ms typical (according to manufacturer data), older units could be as slow as 35 ms[12] Less than 1 µs; can get up to 0.001 µs[13]
Frame rate 60–85 fps typically, some CRTs can go even higher (200 fps at reduced resolution[14]);
internally, display refreshed at input frame rate speed 		60 fps typically, some can do 120 fps;
internally, display refreshed at up to 240 Hz[15] 		60 fps typically, some can do 120 fps;
internally, display refreshed at e.g. 480 or 600 Hz[16]
Environmental influences Sensitive to ambient magnetic fields, which can adversely effect convergence and color purity. Prone to malfunctions on both low (below -4 °F\-20 °C) or high (above 45 °C\113 °F) temperatures[17] High altitude pressure difference may cause poor function or buzzing noises[18]
Flicker Perceptible on lower refresh rates (60 Hz and below)[19] Depends; as of 2013, most LCDs use PWM (strobing) to dim the backlight[20] Does not normally occur due to high refresh rate.[21]
Size Up to 43" Up to 108"(2.78m)[22] Up to 150"(3.8m)[23]
Energy consumption and heat generation High[24] Low[24]
 Varies with brightness but usually higher than LCD[25][26][27][28]
Maintenance Hazardous to repair or service due to high-voltage,
requires skilled convergence calibration and adjustments for geographic location changes.[29]Glass display tube is evacuated and carries risk of implosion if improperly handled. 		Risky and expensive to repair due to complexity of the display;[30] units with mercury lamps are a minor environmental hazard[31] Screen itself cannot be repaired if the gas used to generate images leaks[32]
Electro-magnetic radiation emission Can emit a small amount of X-ray radiation. Only emits non-ionizing radiation.[33] Emits strong radio frequency electromagnetic radiation[34]
Other No native resolution. Currently, the only display technology capable of multi-syncing (displaying different resolutions and refresh rates without the need for scaling).[35] Display lag is extremely low due to its nature, which does not have the ability to store image data before output, unlike LCDs, plasma displays and OLED displays.[36]Extremely bulky and heavy construction in comparison to other display technologies. Large displays would be unsuitable for wall mounting. The LCD grid can mask effects of spatial and grayscale quantization, creating the illusion of higher image quality.[37]
Screen-door effects are more noticeable than LCD when up close, or on larger sizes;[38]
Risk of image retention or 'burn-in'. 		Risk of image retention or 'burn-in'.

Coloured sub-pixels may age at different rates, leading to a colour shift.

Sensitive to UV light from direct sunlight.

References

  1. ↑ 1.0 1.1 1.2 Display "Technology Shoot-Out: Comparing CRT, LCD, Plasma and DLP Displays", Dr. Raymond M. Soneira, DisplayMate Technologies website
  2. ↑ "Review Sony Vaio VPC-SA2Z9E/B (i7, SSD, HD 6630M) Subnotebook" (in en). Notebookcheck. https://www.notebookcheck.net/Review-Sony-Vaio-VPC-SA2Z9E-B-i7-SSD-HD-6630M-Subnotebook.58359.0.html#toc-display. 
  3. ↑ 3.0 3.1 "Samsung KS9500 Review (UN55KS9500, UN65KS9500) - RTINGS.com" (in en-US). https://www.rtings.com/tv/reviews/samsung/ks9500. 
  4. ↑ "LCD-Plasma Display Technology Shoot-Out". http://www.displaymate.com/LCD_Plasma_ShootOut.htm. 
  5. ↑ "Contrast Ratio of TVs" (in en-US). RTINGS.com. https://www.rtings.com/tv/tests/picture-quality/contrast-ratio. 
  6. ↑ "LG C7 OLED Review (OLED55C7P, OLED65C7P) - RTINGS.com" (in en-US). https://www.rtings.com/tv/reviews/lg/c7-oled. 
  7. ↑ "What is Samsung's SUHD?" (in en). CNET. http://www.cnet.com/news/what-is-samsung-suhd/. 
  8. ↑ COP 3502 Introduction to Computer Science
  9. ↑ [1]
  10. ↑ CNET Australiareferences– Plasma vs. LCD: Which is right for you?
  11. ↑ "An investigation of the test process used to date for determining the response time of an LCD monitor, known as input lag – Thomas Thiemann at prad.de"
  12. ↑ "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
  13. ↑ "Wayback Machine". 2017-01-12. https://web.archive.org/web/20170112001123/http://www.trustedreviews.com/opinions/plasma-and-lcd-tv-tech-explained_Page-2. 
  14. ↑ http://downloads.bbc.co.uk/rd/pubs/whp/whp-pdf-files/WHP169.pdf
  15. ↑ HDTV Refresh Rates Explained: 60Hz, 120Hz, and Beyond, Retrieved April 2013
  16. ↑ "What is 600Hz Sub Field Drive?", Retrieved April 2013
  17. ↑ Does Altitude or Temperature Affect LCD Monitors?
  18. ↑ PlasmaTVBuyingGuide.com Plasma TVs at Altitude
  19. ↑ "CRT Monitor Flickering?". http://www.pcmech.com/article/crt-monitor-flickering/. Retrieved 4 October 2009. 
  20. ↑ Explanation of why pulse width modulated backlighting is used, and its side-effects, "Pulse Width Modulation on LCD monitors", TFT Central. Retrieved June 2012.
  21. ↑ How Do Plasma TVs Create No Flicker?
  22. ↑ "Sharp to Introduce World's Largest*1 108-Inch LCD Monitor for Commercial Applications; Now Accepting Orders" (Press release). Sharp Corporation. 13 June 2008.
  23. ↑ Dugan, Emily (8 January 2008). "6ft by 150 inches – and that's just the TV". The Independent (London). https://www.independent.co.uk/life-style/gadgets-and-tech/news/6ft-by-150-inches--and-thats-just-the-tv-768862.html. 
  24. ↑ 24.0 24.1 Tom's Hardware: Power Consumption Benchmark Results for CRT versus TFT LCD "Benchmark Results: Different Brightness Testing"
  25. ↑ "LCD vs Plasma TVs". Which?. http://www.which.co.uk/technology/tv-and-dvd/guides/lcd-vs-plasma-tvs/lcd-tv/. Retrieved 26 October 2011. 
  26. ↑ Plasma vs LCD power consumption shootout
  27. ↑ Plasma vs LCD vs LED - Digital Direct
  28. ↑ Power! | Sound & Vision
  29. ↑ "Monitors: Earth's Magnetic Field Affects Performance". Apple Support Knowledgebase. Apple. http://support.apple.com/kb/TA45151?viewlocale=en_US. Retrieved 21 June 2012. 
  30. ↑ "HP Notebook PCs - Diagnosing a Liquid Crystal Display (LCD) for Damage". 2017-01-12. https://web.archive.org/web/20170112002451/http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c01608578. 
  31. ↑ "LCD and LED TV Care Guide; How to clean and maintain an LCD or LED Television". 2016-01-11. https://web.archive.org/web/20160111060131/https://lcdtvbuyingguide.com/lcdtvcaring.shtml. 
  32. ↑ Plasma Repair Answers
  33. ↑ "Do TVs emit harmful radioactive rays?" (in en). Telegraph.co.uk. https://www.telegraph.co.uk/technology/advice/8813114/Do-TVs-emit-harmful-radioactive-rays.html. 
  34. ↑ eham Amateur Radio Forum "Plasma TV – Mother of All RFI Producers", Retrieved April 2013
  35. ↑ Native Resolution - AfterDawn: Glossary of technology terms & acronyms
  36. ↑ "Error: no |title= specified when using {{Cite web}}". Archived from the original on February 20, 2015. https://web.archive.org/web/20150220052714/http://meleeiton.me/2014/03/27/this-tv-lags-a-guide-on-input-and-display-lag/. Retrieved February 22, 2015. 
  37. ↑ 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.
  38. ↑ "Plasma Television Guide". 2012-04-26. https://web.archive.org/web/20120426051605/http://www.home-theater-automation-and-electronics.com/PlasmaTelevisionGuide.html. 




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