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Cathode ray tube: SAGE display scope

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	** [[Contrast ratio]] is the ratio of the luminosity of the brightest color (white) to that of the darkest color (black) that the monitor is capable of producing simultaneously. For example, a ratio of {{ratio\|20,000:1}} means that the brightest shade (white) is 20,000 times brighter than its darkest shade (black). Dynamic contrast ratio is measured with the LCD backlight turned off. ANSI contrast is with both black and white simultaneously adjacent onscreen.		** [[Contrast ratio]] is the ratio of the luminosity of the brightest color (white) to that of the darkest color (black) that the monitor is capable of producing simultaneously. For example, a ratio of {{ratio\|20,000:1}} means that the brightest shade (white) is 20,000 times brighter than its darkest shade (black). Dynamic contrast ratio is measured with the LCD backlight turned off. ANSI contrast is with both black and white simultaneously adjacent onscreen.
	** [[Color depth]] – measured in bits per primary color or bits for all colors. Those with 10{{nbsp}}bpc (bits per channel) or more can display more shades of color (approximately 1 billion shades) than traditional 8{{nbsp}}bpc monitors (approximately 16.8 million shades or colors), and can do so more precisely without having to resort to [[dithering]].		** [[Color depth]] – measured in bits per primary color or bits for all colors. Those with 10{{nbsp}}bpc (bits per channel) or more can display more shades of color (approximately 1 billion shades) than traditional 8{{nbsp}}bpc monitors (approximately 16.8 million shades or colors), and can do so more precisely without having to resort to [[dithering]].
	** [[Gamut]] – measured as ~~coordinates in~~ the [[CIE 1931 color space]]. ~~The names~~ [[sRGB]] or [[Adobe RGB color space\|Adobe RGB]] ~~are shorthand notations~~.		** [[Gamut]] – measured as a subset of the [[CIE 1931 color space]]. [[sRGB]] and [[Adobe RGB color space\|Adobe RGB]] have different gamuts, with Adobe RGB able to show a wider range of color than sRGB.
	** [[Color difference\|Color accuracy]] – measured in ΔE (delta-E); the lower the ΔE, the more accurate the color representation. A ΔE of below 1 is imperceptible to the human eye. A ΔE of 2{{ndash}}4 is considered good and requires a sensitive eye to spot the difference.		** [[Color difference\|Color accuracy]] – measured in ΔE (delta-E); the lower the ΔE, the more accurate the color representation. A ΔE of below 1 is imperceptible to the human eye. A ΔE of 2{{ndash}}4 is considered good and requires a sensitive eye to spot the difference.
	** [[Viewing angle]] is the maximum angle at which images on the monitor can be viewed, without subjectively excessive degradation to the image. It is measured in degrees horizontally and vertically.		** [[Viewing angle]] is the maximum angle at which images on the monitor can be viewed, without subjectively excessive degradation to the image. It is measured in degrees horizontally and vertically.
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	===Aspect ratio===		===Aspect ratio===
	{{Main\|Display aspect ratio}}		{{Main\|Display aspect ratio}}
	Until about ~~2003~~, most computer monitors had a [[4:3]] [[Display aspect ratio\|aspect ratio]] and some had [[5:4]]. Between ~~2003~~ and 2006, monitors with [[16:9]] and mostly [[16:10]] (8:5) aspect ratios became commonly available, first in laptops and later also in standalone monitors. Reasons for this transition included productive uses (i.e. [[field of view in video games]] and movie viewing) such as the word processor display of two standard letter pages side by side, as well as CAD displays of large-size drawings and application menus at the same time.<ref>NEMATech Computer Display Standards {{cite web \|url=http://www.millertech.com/Technical_Specs.htm \|title=NEMA Specifications \|access-date=2011-04-29 \|url-status=dead \|archive-url=https://web.archive.org/web/20120302030131/http://www.millertech.com/Technical_Specs.htm \|archive-date=2012-03-02 }}</ref><ref>{{cite web \|archive-url=https://web.archive.org/web/20070315085244/http://www.necdisplay.com/support/css/monitortechguide/index05.htm \|archive-date=2007-03-15 \|url=http://www.necdisplay.com/support/css/monitortechguide/index05.htm \|title=Introduction—Monitor Technology Guide \|publisher=NEC Display Solutions }}</ref> In 2008 16:10 became the most common sold aspect ratio for [[LCD monitor]]s and the same year 16:10 was the mainstream standard for laptops and [[notebook computers]].<ref name="displaysearch1">{{cite web \|url=http://www.displaysearch.com/cps/rde/xchg/SID-0A424DE8-28DF6E59/displaysearch/hs.xsl/070108_16by9_PR.asp \|title=Product Planners and Marketers Must Act Before 16:9 Panels Replace Mainstream 16:10 and Monitor LCD Panels, New DisplaySearch Topical Report Advises \|publisher=DisplaySearch \|date=1 July 2008 \|access-date=2011-05-20 \|url-status=dead \|archive-url=https://web.archive.org/web/20110721072242/http://www.displaysearch.com/cps/rde/xchg/SID-0A424DE8-28DF6E59/displaysearch/hs.xsl/070108_16by9_PR.asp \|archive-date=2011-07-21 }}</ref>		Until about 2001, most computer monitors had a [[4:3]] [[Display aspect ratio\|aspect ratio]] and some had [[5:4]] or [[8:7]]. Between 2001 and 2006, monitors with [[16:9]] and mostly [[16:10]] (8:5) aspect ratios became commonly available, first in laptops and later also in standalone monitors. Reasons for this transition included productive uses (i.e. [[field of view in video games]] and movie viewing) such as the word processor display of two standard letter pages side by side, as well as CAD displays of large-size drawings and application menus at the same time.<ref>NEMATech Computer Display Standards {{cite web \|url=http://www.millertech.com/Technical_Specs.htm \|title=NEMA Specifications \|access-date=2011-04-29 \|url-status=dead \|archive-url=https://web.archive.org/web/20120302030131/http://www.millertech.com/Technical_Specs.htm \|archive-date=2012-03-02 }}</ref><ref>{{cite web \|archive-url=https://web.archive.org/web/20070315085244/http://www.necdisplay.com/support/css/monitortechguide/index05.htm \|archive-date=2007-03-15 \|url=http://www.necdisplay.com/support/css/monitortechguide/index05.htm \|title=Introduction—Monitor Technology Guide \|publisher=NEC Display Solutions }}</ref> In 2008 16:10 became the most common sold aspect ratio for [[LCD monitor]]s and the same year 16:10 was the mainstream standard for laptops and [[notebook computers]].<ref name="displaysearch1">{{cite web \|url=http://www.displaysearch.com/cps/rde/xchg/SID-0A424DE8-28DF6E59/displaysearch/hs.xsl/070108_16by9_PR.asp \|title=Product Planners and Marketers Must Act Before 16:9 Panels Replace Mainstream 16:10 and Monitor LCD Panels, New DisplaySearch Topical Report Advises \|publisher=DisplaySearch \|date=1 July 2008 \|access-date=2011-05-20 \|url-status=dead \|archive-url=https://web.archive.org/web/20110721072242/http://www.displaysearch.com/cps/rde/xchg/SID-0A424DE8-28DF6E59/displaysearch/hs.xsl/070108_16by9_PR.asp \|archive-date=2011-07-21 }}</ref>

	In 2010, the computer industry started to move over from [[16:10]] to [[16:9]] because 16:9 was chosen to be the standard [[high-definition television]] display size, and because they were cheaper to manufacture.{{cn\|date = ~~November 2021~~}}		In 2010, the computer industry started to move over from [[16:10]] to [[16:9]] because 16:9 was chosen to be the standard [[high-definition television]] display size, and because they were cheaper to manufacture.<ref>{{cite web \|url=https://www.anandtech.com/show/2804/10 \|title=The Death of the 30" 16:10 Display \|publisher=AnandTech \|date=2009-03-02 \|access-date=2025-10-01}}</ref>

	In 2011, non-widescreen displays with 4:3 aspect ratios were only being manufactured in small quantities. According to [[Samsung]], this was because the "Demand for the old 'Square monitors' has decreased rapidly over the last couple of years," and "I predict that by the end of 2011, production on all 4:3 or similar panels will be halted due to a lack of demand."<ref name="mybroadband1">{{cite web \|url-status=live \|url=http://mybroadband.co.za/news/hardware/17621-Widescreen-monitors-Where-did-1920x1200.html \|title=Widescreen monitors: Where did 1920×1200 go? \|archive-url=https://web.archive.org/web/20110113080158/http://mybroadband.co.za/news/hardware/17621-Widescreen-monitors-Where-did-1920x1200.html \|archive-date=2011-01-13 \|website=MyBroadband \|date=10 January 2011 \|first1=Jan \|last1=Vermeulen \|access-date=2011-12-24}}</ref>		In 2011, non-widescreen displays with 4:3 aspect ratios were only being manufactured in small quantities. According to [[Samsung]], this was because the "Demand for the old 'Square monitors' has decreased rapidly over the last couple of years," and "I predict that by the end of 2011, production on all 4:3 or similar panels will be halted due to a lack of demand."<ref name="mybroadband1">{{cite web \|url-status=live \|url=http://mybroadband.co.za/news/hardware/17621-Widescreen-monitors-Where-did-1920x1200.html \|title=Widescreen monitors: Where did 1920×1200 go? \|archive-url=https://web.archive.org/web/20110113080158/http://mybroadband.co.za/news/hardware/17621-Widescreen-monitors-Where-did-1920x1200.html \|archive-date=2011-01-13 \|website=MyBroadband \|date=10 January 2011 \|first1=Jan \|last1=Vermeulen \|access-date=2011-12-24}}</ref>
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	==See also==		==See also==
			* [[Comparison of CRT, LCD, plasma, and OLED displays]]
	* [[Composite monitor]]		* [[Composite monitor]]
	* [[History of display technology]]
	* [[Comparison of CRT, LCD, plasma, and OLED displays]]
	* [[Flat-panel display]]		* [[Flat-panel display]]
	* [[Head-mounted display]]		* [[Head-mounted display]]
	* [[High frame rate]]		* [[High frame rate]]
			* [[History of display technology]]
	* [[Liquid-crystal display]]		* [[Liquid-crystal display]]
			* [[Monochrome monitor]]
	* [[Multi-monitor]]		* [[Multi-monitor]]
			* [[Variable refresh rate]]
	* [[Vector monitor]]		* [[Vector monitor]]
	* [[Virtual desktop]]		* [[Virtual desktop]]
	* [[Variable refresh rate]]

	==References==		==References==

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