Engineering:Comparison of CRT, LCD, and plasma
From HandWiki
Revision as of 00:37, 16 December 2020 by imported>NBrushPhys (change)
| 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subpixel panels;[7] smaller dot pitch, better detail[8] | 6 to 8-bit per subpixel panels; best color gamut[9][resource out of date, not impartial][10][resource out of date; source not credible/reputable] | |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
- ↑ 1.0 1.1 1.2 Display "Technology Shoot-Out: Comparing CRT, LCD, Plasma and DLP Displays", Dr. Raymond M. Soneira, DisplayMate Technologies website
- ↑ "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.
- ↑ 3.0 3.1 "Samsung KS9500 Review (UN55KS9500, UN65KS9500) - RTINGS.com" (in en-US). https://www.rtings.com/tv/reviews/samsung/ks9500.
- ↑ "LCD-Plasma Display Technology Shoot-Out". http://www.displaymate.com/LCD_Plasma_ShootOut.htm.
- ↑ "Contrast Ratio of TVs" (in en-US). RTINGS.com. https://www.rtings.com/tv/tests/picture-quality/contrast-ratio.
- ↑ "LG C7 OLED Review (OLED55C7P, OLED65C7P) - RTINGS.com" (in en-US). https://www.rtings.com/tv/reviews/lg/c7-oled.
- ↑ "What is Samsung's SUHD?" (in en). CNET. http://www.cnet.com/news/what-is-samsung-suhd/.
- ↑ COP 3502 Introduction to Computer Science
- ↑ [1]
- ↑ CNET Australiareferences– Plasma vs. LCD: Which is right for you?
- ↑ "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"
- ↑ "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
- ↑ "Wayback Machine". 2017-01-12. https://web.archive.org/web/20170112001123/http://www.trustedreviews.com/opinions/plasma-and-lcd-tv-tech-explained_Page-2.
- ↑ http://downloads.bbc.co.uk/rd/pubs/whp/whp-pdf-files/WHP169.pdf
- ↑ HDTV Refresh Rates Explained: 60Hz, 120Hz, and Beyond, Retrieved April 2013
- ↑ "What is 600Hz Sub Field Drive?", Retrieved April 2013
- ↑ Does Altitude or Temperature Affect LCD Monitors?
- ↑ PlasmaTVBuyingGuide.com Plasma TVs at Altitude
- ↑ "CRT Monitor Flickering?". http://www.pcmech.com/article/crt-monitor-flickering/. Retrieved 4 October 2009.
- ↑ Explanation of why pulse width modulated backlighting is used, and its side-effects, "Pulse Width Modulation on LCD monitors", TFT Central. Retrieved June 2012.
- ↑ How Do Plasma TVs Create No Flicker?
- ↑ "Sharp to Introduce World's Largest*1 108-Inch LCD Monitor for Commercial Applications; Now Accepting Orders" (Press release). Sharp Corporation. 13 June 2008.
- ↑ 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.
- ↑ 24.0 24.1 Tom's Hardware: Power Consumption Benchmark Results for CRT versus TFT LCD "Benchmark Results: Different Brightness Testing"
- ↑ "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.
- ↑ Plasma vs LCD power consumption shootout
- ↑ Plasma vs LCD vs LED - Digital Direct
- ↑ Power! | Sound & Vision
- ↑ "Monitors: Earth's Magnetic Field Affects Performance". Apple Support Knowledgebase. Apple. http://support.apple.com/kb/TA45151?viewlocale=en_US. Retrieved 21 June 2012.
- ↑ "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.
- ↑ "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.
- ↑ Plasma Repair Answers
- ↑ "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.
- ↑ eham Amateur Radio Forum "Plasma TV – Mother of All RFI Producers", Retrieved April 2013
- ↑ Native Resolution - AfterDawn: Glossary of technology terms & acronyms
- ↑ "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. - ↑ 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.
- ↑ "Plasma Television Guide". 2012-04-26. https://web.archive.org/web/20120426051605/http://www.home-theater-automation-and-electronics.com/PlasmaTelevisionGuide.html.
 |
