Comparison of CRT, LCD, Plasma, and OLED displays

Further information: Comparison of display technology
Parameter CRT LCD Plasma OLED
Static Contrast ratio Over 15,000:1[1] 150 to 6,600:1[2][3] 3,800:1[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 8 to 10-bit per subpixel, with some HDR models capable of 12-bit per subpixel.[9]
Response time 0.01 ms[10] to less than 1 µs[11] 1–8 ms typical (according to manufacturer data), older units could be as slow as 35 ms[12] Typically less than 0.001 ms, as low as 0.00001 ms[10] Estimates varying from under 0.01 ms to as low as 0.001 ms.[13][14]
Frame rate 60–85 fps typically, some CRTs can go even higher (200 fps at reduced resolution[15]);
internally, display refreshed at input frame rate speed		 60 fps typically, gaming monitors can do up to 240 fps;
internally, display refreshed at up to 240 Hz[16]		 60 fps typically, some can do 120 fps;
internally, display refreshed at e.g. 480 or 600 Hz[17]		 60 fps typically.
Flicker Perceptible on lower refresh rates (60 Hz and below)[18] Depends; as of 2013, most LCDs use PWM (strobing) to dim the backlight[19] Does not normally occur due to high refresh rate.[20] Does not normally occur.
Risk of image persistence or burn-in High[21] Low[21] High[21] Medium[22]
Energy consumption and heat generation High[23] Low[23]
 Varies with brightness but usually higher than LCD[24][25][26][27] Varies based on image brightness and color. For the majority of images it will consume 60–80% of the power of an LCD.

OLED displays use 40% of the power of an LCD displaying an image that is primarily black as they lack the need for a backlight,[28] while OLED can use more than three times as much power to display a mostly white image compared to an LCD.[29]

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[30] High altitude pressure difference may cause poor function or buzzing noises[31] Can have poor brightness.
Electro-magnetic radiation emission Can emit a small amount of X-ray radiation. Only emits non-ionizing radiation.[32] Emits strong radio frequency electromagnetic radiation[33]
Size Up to 43" (1.09 m) Up to 108" (2.78 m)[34] Up to 150" (3.8 m)[35] Up to 88" (2.24 m)[36]
Maintenance Hazardous to repair or service due to high-voltage,
requires skilled convergence calibration and adjustments for geographic location changes.[37] Glass display tube is evacuated and carries risk of implosion if improperly handled.		 Risky and expensive to repair due to complexity of the display;[38] units with mercury lamps are a minor environmental health hazard[39] Screen itself cannot be repaired if the gas used to generate images leaks[40]
Other No native resolution. Currently, the only display technology capable of multi-syncing (displaying different resolutions and refresh rates without the need for scaling).[41] 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.[42] Extremely bulky and heavy construction in comparison to other display technologies. Large displays would be unsuitable for wall mounting. New models are no longer produced. The LCD grid can mask effects of spatial and grayscale quantization, creating the illusion of higher image quality. [43]
Is the cheapest display technology currently produced, with some entry-level models selling for less than $100.		 Screen-door effects are more noticeable than LCD when up close, or on larger sizes. [44] New models are no longer produced. Coloured sub-pixels may age at different rates, leading to a colour shift. Sensitive to UV light from direct sunlight. Is considered the highest quality but also the most expensive display technology currently produced, with products rarely being available for less than $1000.

References
  1. 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". Notebookcheck. Retrieved 2018-09-09.
  3. "Samsung KS9500 Review (UN55KS9500, UN65KS9500) – RTINGS.com". www.rtings.com. Retrieved 2018-09-09.
  4. "LCD-Plasma Display Technology Shoot-Out". www.displaymate.com. Retrieved 2018-09-09.
  5. "Contrast Ratio of TVs". RTINGS.com. Retrieved 2018-09-09.
  6. "LG C7 OLED Review (OLED55C7P, OLED65C7P) – RTINGS.com". www.rtings.com. Retrieved 2018-09-09.
  7. "What is Samsung's SUHD?". CNET. Retrieved 2017-08-28.
  8. COP 3502 Introduction to Computer Science
  9. "4K HDR – what is it, and what's the different between 8,10, and 12-bit HDR?". dgit.com. Retrieved 2019-01-17.
  10. "Wayback Machine". 2017-01-12. Archived from the original on 2017-01-12. Retrieved 2017-08-28.
  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. "LG 55EM9700 | OLED-Info". www.oled-info.com. Retrieved 2019-02-21.
  14. Pino, Nick; Porter, Jon; TV, Henry St Leger 2018-09-25T22:00:00Z. "OLED TV: what you need to know". TechRadar. Retrieved 2019-02-21.
  15. http://downloads.bbc.co.uk/rd/pubs/whp/whp-pdf-files/WHP169.pdf
  16. HDTV Refresh Rates Explained: 60 Hz, 120 Hz, and Beyond, Retrieved April 2013
  17. "What is 600 Hz Sub Field Drive?", Retrieved April 2013
  18. "CRT Monitor Flickering?". Archived from the original on 15 May 2016. Retrieved 4 October 2009.
  19. Explanation of why pulse width modulated backlighting is used, and its side-effects, "Pulse Width Modulation on LCD monitors", TFT Central. Retrieved June 2012.
  20. How Do Plasma TVs Create No Flicker?
  21. Gordon, Whitson. "Is "Burn-In" Still an Issue on TVs and Monitors?". Lifehacker. Retrieved 2018-09-20.
  22. John Archer. "The OLED Screen Burn Debate - Everything You Need To Know". Retrieved 2020-05-11.
  23. Tom's Hardware: Power Consumption Benchmark Results for CRT versus TFT LCD "Benchmark Results: Different Brightness Testing"
  24. "LCD vs Plasma TVs". Which?. Retrieved 26 October 2011.
  25. "Plasma vs LCD power consumption shootout". Archived from the original on 2016-05-13. Retrieved 2016-05-13.
  26. Plasma vs LCD vs LED - Digital Direct
  27. Power! | Sound & Vision
  28. "How OLEDs Work". HowStuffWorks. 2005-03-24. Retrieved 2019-02-21.
  29. Stokes, Jon (2009-08-11). "This September, OLED no longer "three to five years away"". Ars Technica. Retrieved 2019-02-21.
  30. Does Altitude or Temperature Affect LCD Monitors?
  31. PlasmaTVBuyingGuide.com Plasma TVs at Altitude
  32. "Do TVs emit harmful radioactive rays?". Telegraph.co.uk. Retrieved 2017-08-28.
  33. eham Amateur Radio Forum "Plasma TV – Mother of All RFI Producers", Retrieved April 2013
  34. "Sharp to Introduce World's Largest*1 108-Inch LCD Monitor for Commercial Applications; Now Accepting Orders" (Press release). Sharp Corporation. 13 June 2008.
  35. Dugan, Emily (8 January 2008). "6ft by 150 inches – and that's just the TV". The Independent. London.
  36. https://www.cnet.com/google-amp/news/lg-88-inch-8k-oled-tv-costs-30000-impresses-friends-and-neighbors/
  37. "Monitors: Earth's Magnetic Field Affects Performance". Apple Support Knowledgebase. Apple. Retrieved 21 June 2012.
  38. "HP Notebook PCs – Diagnosing a Liquid Crystal Display (LCD) for Damage". 2017-01-12. Archived from the original on 2017-01-12. Retrieved 2017-08-28.
  39. "LCD and LED TV Care Guide; How to clean and maintain an LCD or LED Television". 2016-01-11. Archived from the original on 2016-01-11. Retrieved 2017-08-28.
  40. Plasma Repair Answers
  41. Native Resolution - AfterDawn: Glossary of technology terms & acronyms
  42. "Meleeiton.me". Archived from the original on February 20, 2015. Retrieved February 22, 2015.
  43. 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.
  44. "Plasma Television Guide". 2012-04-26. Archived from the original on 2012-04-26. Retrieved 2017-08-28.
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