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Topic: Aperture grille

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	Aperture grille - Wikipedia, the free encyclopedia
		Additionally, aperture grille displays tend to be vertically flat and are often horizontally flat as well, while shadow mask displays usually have a spherical curvature.
		The first patented aperture grille televisions were manufactured by Sony in the late 1960s under the Trinitron brand name, which the company carried over to its line of CRT computer monitors.
		One significant drawback to the use of aperture grille monitors are the faint lines that appear at one third and two thirds of the screens' height (often at just one location—usually 2/3rds—on smaller displays).
	en.wikipedia.org /wiki/Aperture_grille (384 words)

	Tweak3D.net - How Monitors Work
		Aperture grille technology has the same intentions as shadow masks, to prevent pixel glow leakage.
		Another advantage aperture grilles have over shadow masks is that they only need to be curved horizontally instead of both planes.
		Each grille wire is stretched vertically very tightly to ensure that wire "shimmering" doesn't occur and that a sharp image is produced.
	www.tweak3d.net /articles/howmonitors/4.shtml (420 words)

	[No title]
		Aperture grille tubes use stripe pitch or aperture grille pitch to measure the horizontal distance between its phosphor stripes.
		A given aperture grille pitch is roughly equivalent to a slightly bigger dot pitch.
		For example, a 0.25mm aperture grille pitch is roughly equivalent to a 0.27mm dot pitch.
	users.iafrica.com /t/ti/timray.frozen/monitor3.doc (1390 words)

	Review: Sony CDP-G400 19" monitor
		The Sony's aperture grille pitch is roughly equivalent to a 0.27 or 0.28mm conventional dot pitch.
		Aperture grille monitors shimmer more when you tap them than shadow mask monitors, because of the instability of the grille - which is why they need the damper wires.
		Aperture grille monitors have a quite different phosphor pattern from shadow mask ones, which makes it hard to compare their resolution capabilities with those of shadow mask monitors.
	www.dansdata.com /sg400.htm (4326 words)

	Grill Room
		Gas grills are available in sizes ranging from small, single steak grills up to large, industrial sized restaurant grills which are able to cook enough meat to feed a hundred or more people.
		Gas Grills are designed for either LP or NG, although it is possible to convert a grill from one gas source to another.
		H variant of the Grille, this was located at the rear of the vehicle, as well as somewhat smaller and higher.
	www.artistbooking.com /trips/72/grill-room.html (1410 words)

	Imagewerks Computers
		Aperture grille technology employs a series of thin, closely-spaced vertical wires to isolate pixels horizontally.
		A third advantage of an aperture grille is that it is much less susceptible than a shadow mask to warping caused by heat.
		To keep the vertical wires in an aperture grille properly aligned within the picture tube, one or two horizontal damper wires are required.
	www.imagewerkscomputers.com /msg7.htm (403 words)

	Smart Computing Article - The P’s & Q’s Of Your CRT (Site not responding. Last check: 2007-10-13)
		The distance between two same-colored phosphors is called the dot pitch for the shadow mask, the stripe pitch for the aperture grille, and the slot mask pitch for the slot mask.
		An aperture grille display with the same pixel density would claim a pixel pitch of 0.22mm while the shadow mask display measures it as 0.26mm.
		Aperture grille displays measure stripe pitch, the horizontal distance between same-colored phosphor stripes.
	www.smartcomputing.com /editorial/article.asp?article=articles/archive/r0403/12r03/12r03.asp (3702 words)

	Aperture
		The aperture area of a collector is the opening or projected area of a collector through which the unconcentrated solar energy is admitted.
		Reducing the aperture size increases the depth of field, which describes the extent to which subject matter lying closer than or farther from the actual plane of focus appears to be in focus.
		In general, the smaller the aperture, the greater the distance from the plane of focus the subject matter may be while still appearing in focus.
	www.websters-online-dictionary.com /definition/english/ap/aperture.html (2000 words)

	Introduction--Monitor Technology Guide (Site not responding. Last check: 2007-10-13)
		In a CRT that utilizes an Invar shadow mask, millions of bundles of red, green and blue phosphors are organized in a triangular arrangement, sometimes referred to as a delta pattern, that correspond with a circular opening in the mask.
		Aperture grille CRTs do not have vertical breaks between the stripes of phosphors, so the distance between the like-colored stripes are measured only on the horizontal plane (Fig.
		Grille pitch for aperture grille CRT monitors is measured on the horizontal plane between like-colored stripes.
	www.necdisplay.com /support/css/monitortechguide/index02.htm (705 words)

	Fixed Frequency FAQ -- Why does my monitor have 1/2/3 faint horizontal lines on it?-- MonitorWorld.com
		An Aperture Grille consists of a series of long vertical slits fastened with strong vertical tension to a steel supporting frame.
		The vertical tension of the Aperture Grille absorbs any thermal expansion, thus eliminating the problem of doming or color spill and resulting in a superior picture quality.
		Since the CRT requires a vacuum to function, a damper wire which is approximately 15 microns in diameter is strategically placed on the Aperture Grille to reduce susceptibility to resonance.
	www.monitorworld.com /faq_pages/q28_page.html (607 words)

	Videoseven (Site not responding. Last check: 2007-10-13)
		This is an intrinsic characteristic of aperture grille CRTs.
		This CRT technology is unique in its construction in that it has an aperture grille rather than the conventional shadow mask.
		The aperture grille is comprised of a frame with hundreds of very fine wires strung vertically.
	www.videoseven.de /website/displays/en/support/faq/monitore/index.php (520 words)

	Shadow Mask or Aperture Grille - Neowin.net
		Apparently, aperture grille monitors are brighter and have better contrast than the invar shadow masks.
		Aperture grill has better image quality in my opinion.
		They kinda invented the trinitron tube (which is aperture grill) and they make stylish monitors of very good quality.
	www.neowin.net /forum/index.php?showtopic=79496 (1116 words)

	ViewSonic: Monitor University: Monitor Technology 101: CRT Basics
		Aperture grille tubes send their electron beams through an array of thin vertical wires.
		The grille is supported by one or two horizontal wires that may cause a faint line to appear on a white screen.
		Aperture grilles deliver bright, saturated colors ideal for desktop publishers and graphic artists.
	www.viewsonic.com /monitoruniversity/crtbasics.htm (588 words)

	Trinitron - Wikipedia, the free encyclopedia
		Trinitron is Sony's brand name for its line of aperture grille cathode ray tube televisions and computer monitors.
		"Trinitron" is sometimes used as a generic term for CRT monitors equipped with an aperture grille tube.
		Because of the expiration of Sony's Trinitron patent, manufacturers like Mitsubishi are now free to use the Trinitron design for their own product line without licence from Sony.
	en.wikipedia.org /wiki/Trinitron (334 words)

	WinMag (Site not responding. Last check: 2007-10-13)
		Aperture grille tubes use stripe pitch (or aperture-grille pitch), which is the measure of the horizontal distance between phosphor stripes.
		A given aperture grille pitch is roughly equivalent to a slightly larger dot pitch.
		The aperture grille displays a brighter, richer image, but the shadow mask monitor provides a finer, more detailed image.
	www.winmag.com /library/1997/0501/howto165.htm (475 words)

	Home Office Computing: Expand your vision - reviews of eight 17-in color monitors - includes related articles on ...
		In front of the mask or grille are red, green, and blue phosphors.
		Aperture grille tubes produce more brilliant colors but are more expensive.
		Shadow mask monitors should have a 0.28mm dot pitch or smaller; aperture grille monitors should have a grille pitch of 0.31mm or smaller.
	www.findarticles.com /p/articles/mi_m1563/is_n4_v15/ai_19273831 (1520 words)

	BenQ United Kingdom - Knowledge Base (Site not responding. Last check: 2007-10-13)
		It is usually said that aperture grille monitors are brighter and have richer colour.
		On the other hand, dot mask images are crisper because of the tight grouping of phosphor trios and their flat screen provides a truer perspective for fine CAD and complex graphics work.
		API offers both dot type shadow mask and aperture grille monitors, and by any standard, the image quality of both is excellent.
	www.benq.co.uk /serviceandsupport/library.cfm?ac=1&alid=566 (208 words)

	Aperture Grille??? - Topic Ars OpenForum
		Seems like one of the common differences between a $400 monitor and $600 monitor is the Aperture Grille type display.
		Apperture grille are supposed to have better saturated colors and more contrast than shadowmask tubes...
		The result of this difference in technology is that a Trinitron monitor is brighter because less of the display is blocked by the grille.
	episteme.arstechnica.com /6/ubb.x?q=Y&a=tpc&s=50009562&f=67909965&m=72009969 (1083 words)

	RetouchPRO - Need a little help!
		The Sony I had, had the aperture grille, and I'm wondering if that had something to do with eye strain.
		I have a 17 inch Viewsonic with the aperture grille, but it didn't bother my eyes like the 19 inch model.
		I thought if a monitor had an aperture grille, it was a CRT, but a CRT is not necessarily aperture grille.
	www.retouchpro.com /forums/printthread.php?t=4961 (894 words)

	NECLINE (Site not responding. Last check: 2007-10-13)
		Aperture Grille tehnologijom ekrana ima perfektno ravan ekran koji daje 85% manji odsjaj i podržava
		Aperture Grille CRT, 90 degree deflection, 0.25 mm grille pitch, medium-short persistence phospohor, multi-layered, antistatic screen coating, dark-tint and opticlear screen surface.
		Aperture Grille tehnologijom ekrana ima perfektno ravan ekran koji daje 85% manji odsjaj i sliku bez ikakvih izobličenja.
	www.necline.co.yu /f_enterprise.htm (508 words)

	RetouchPRO - Monitor type
		Aperture Grille uses vertical lines instead of the round holes to display.
		It's sort of a combination of shadow mask and Aperture grill, but I'm not sure it ever caught on.
		Like Greg, I'm using an aperture grill, and at the beginning, it was noticeable.
	www.retouchpro.com /forums/showthread.php?t=1898 (1248 words)

	The Hank Files - INVAR Shadow Mask Vs Aperture Grille (Site not responding. Last check: 2007-10-13)
		Both are types of filters used in CRT monitors to restrict light in precise ways so that the final image displayed will be accurate and sharp.
		An aperture grille uses very thin bands for the process of restricting light.
		Aperture grille accuracy is measured using grille pitch.
	hankfiles.pcvsconsole.com /answer.php?file=91 (154 words)

	Ramblings 2: Controllers, CRTs, Demos, More
		As the image below shows, Aperture Grille consists of a series of wires that go from the top to the bottom of the display, with one, perhaps two stabilizer wires going across them to help minimize vibration and color bleed.
		Aperture Grille seems to 'flicker' when the wires vibrate (caused by a variety of things) and those stabilization wires really get on my nerves.
		It is a 22" with 20" viewable and also lacks the USB hub, but if you crave Aperture Grille, it is available.
	www.firingsquad.com /features/ramblings2/page2.asp (689 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		B) Aperture Grille (AG) Manufacturing Division AG department produces aperture grilles or masks- a CRT component- that are a thin sheet of cold rolled steel located inside a cathode ray tube (CRT) between the electron gun and panel glass.
		B1) Aperture Grille Process The aperture grille or mask serves as a screen to block stray electrons from hitting the wrong color phosphor on the panel glass.
		In addition, several sensors that are capable of detecting chlorine are installed around the supply system, fume scrubber stacks, etching process, and the aperture grille building.
	www.rtk.net /rmp/sum7/PA/fac100000063502 (2144 words)

	Compare Prices and Read Reviews on NEC MultiSync FP2141SB (Black) 22" CRT Monitor at Epinions.com
		Next decision was aperture grille or shadow mask.
		I had not had any previous experience with aperture grille monitors and many reviewers comment about the appearance of the two horizontal lines running across the screen that are part of the display of any aperture grille monitor.
		I then started looking at various aperture grille monitors and found that the intensity of the two lines could vary a fair amount.
	www.epinions.com /content_136481574532 (960 words)

	The PC Guide Discussion Forums - Aperture grille vs. stripe pitch? (Site not responding. Last check: 2007-10-13)
		The 95 is aperture grille and the 90 is stripe pitch.
		No difference between stripe pitch and aperture grille.
		Aperture grille is the Trinitron technology, and because it is based on stripes rather than dots, the measurement is called "stripe pitch." Of course!!!
	www.pcguide.com /vb/printthread.php?t=15102 (161 words)

	SONY CONTINUES TO BROADEN VISUAL HORIZONS WITH PREMIER 24-INCH FD TRINITRON DISPLAY (Site not responding. Last check: 2007-10-13)
		Four technical elements—the flat glass panel, the fine pitch aperture grille, a high-focus electron gun and a high-precision deflection yoke—work together to produce images with outstanding color, clarity and detail.
		The fine pitch aperture grille uses higher tension and thicker support members, which help focus the electrons for enhanced detail.
		This technology combines small aperture grids, which greatly refines the electron beam and ensures consistent, accurate focus across the entire screen—even in the corners.
	news.sel.sony.com /pressrelease/295 (1199 words)

	ÉireSpace - Display Technologies explained (Site not responding. Last check: 2007-10-13)
		Originally invented as Trinitron by Sony in 1968, the Aperture Grille uses lines of phosphor rather than dot trios, with a grille of vertical metal strips to direct the electron beam.
		Due to their design, aperture grille monitors can be prone to moiré patterns and can exhibit a bias towards line detail in the horizontal.
		Screen geometry will always be perfect as there is no aperture grille or shadow mask to cause alignment problems and no need to worry about convergence errors in the corners.
	www.eirespace.com /display.htm (2196 words)

	Color CRT's, Shadowmasks, Magnetic Fields and Degauss
		All color CRTs utilize a shadowmask or aperture grill a fraction of an inch(1/2" typical) behind the phosphor screen to direct the electron beamsfor the red, green, and blue video signals to the proper phosphor dots.
		Since the electron beams for the R, G, and B phosphors originate from slightly different positions (individual electron guns for each) and thus arrive at slightly different angles, only the proper phosphors are excited when the purity is properly adjusted and the necessary magnetic field free region is maintained inside the CRT.
		An aperture grille, used exclusively in Sony Trinitrons (and now their clones as well), replaces the shadowmask with an array of finely tensioned vertical wires.
	www.anatekcorp.com /smask.htm (1607 words)

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