QXGA

The QXGA, or Quad eXtended Graphics Array, display standard is a resolution standard in display technology. Their high pixel counts and heavy display hardware requirements mean that there are currently few CRT and LCD monitors which have pixel counts at these levels. These terms are currently relegated to the highest-end consumer computer display hardware for those buying LCD.

WQXGA is often found in 30" displays like the Dell 3008WFP and the Apple Cinema Display. As of this date, there are few WQXGA displays in the consumer marketplace, but their price is higher than most displays used by graphic professionals, and their refresh speed is not close to that used in current consumer displays. It is unlikely that WQXGA, or next-generation HXGA, displays will be commonplace anytime soon. It should also be noted, however, that many standard 21" / 22" CRT monitors can be used at the QXGA resolution. Some of the highest-end 19" CRTs also support this resolution.

QXGA

Computer Standard	Resolution	Ratio	Ratio (Decimal)	Pixels
QWXGA	2048×1152	16:9	1.78	2.4M
QXGA	2048×1536	4:3	1.3333	3.1M
WQXGA	2560×1600	16:10	1.6	4.1M
QSXGA	2560×2048	5:4	1.25	5.2M
WQSXGA	3200×2048	25:16	1.5625	6.6M
QUXGA	3200×2400	4:3	1.3333	7.7M
WQUXGA	3840×2400	16:10	1.6	9.2M

QXGA (Quad eXtended Graphics Array) is a display resolution of 2048×1536 pixels with a 4:3 aspect ratio. The name comes from the fact that it has four times as many pixels as an XGA display. As of 2007, this is the highest non-experimental and non-widescreen resolution, and the number of monitors that can display images at this resolution are somewhat limited, especially among LCDs. The number of CRT monitors offering this resolution has actually dropped off, as CRT makers such as NEC and Sony have stopped offering their higher end models. Examples of LCDs with this resolution are the IBM T210 and the Eizo G33 and R31 screens, but in CRT monitors this resolution is much more common; some examples include the ViewSonic G225fB, NEC FP2141SB or Mitsubishi DP2070SB, Iiyama Vision Master Pro 514, and Dell and HP P1230. Of these monitors, none is still in production. A related display size is WQXGA, which is a wide screen version. CRTs offer a way to achieve QXGA cheaply. Models like the Mitsubishi Diamond Pro 2045U and IBM ThinkVision C220P retailed for around 200 USD, and even higher performance ones like the ViewSonic PerfectFlat P220fB remained under 500 USD. As recently as last year, many off-lease P1230s could be found on eBay for under 150 USD. The LCDs with WQXGA or QXGA resolution typically cost 4 to 5 times more for the same resolution. IDTech manufactured a 15" QXGA IPS panel. NEC had sold laptops with QXGA screens in 2002-2005 for Japanese market^[1]^[2].

WQXGA

WQXGA (Wide Quad eXtended Graphics Array) is a display resolution of 2560×1600 pixels with a 16:10 aspect ratio. The name comes from the fact that it is a wide version of QXGA, which in turn has four times as many pixels as an XGA display. Prior to 2007, devices that could display this resolution were very rare, but many manufacturers have since come out with a 27"-30" model that is capable of WQXGA, albeit at a much higher price than lower resolution monitors of the same size. Several mainstream WQXGA monitors are available with 30 inch displays, such as the Apple Cinema Display, the Dell UltraSharp 3007WFP-HC and 3008WFP, the Hewlett-Packard LP3065, the Gateway XHD3000, and the Samsung 305T. Specialist manufacturers like Planar Systems, Barco (LC-3001) and possibly others offer similar models.

One feature which is currently unique to the 30" WQXGA monitors are their ability to function as the centerpiece & main display of a three-monitor array of complementary aspect ratios, with two UXGA (1600x1200) 20" monitors turned vertically on either side. The resolutions are equal, and the size of the 1600 resolution edges (if the manufacturer is honest) is within a tenth of an inch, presenting a "picture window view" without the extreme lateral dimensions, small central panel, asymmetry, resolution differences, or dimensional difference of other three-monitor combinations. The resulting 4960x1600 composite image has a 3.1:1 aspect ratio.

Of course, this also means one UXGA 20" monitor in portrait orientation can also be flanked by two 30" WQXGA monitors for a 6320x1600 composite image with a 15.8:3 (79:15, 5.267:1) aspect ratio.

QWXGA

QWXGA (Quad Wide eXtended Graphics Array) is a display resolution of 2048×1152 pixels with a 16:9 aspect ratio. A few LCD QWXGA monitors are available with 23 and 27 inch displays, such as the Acer B233HU (23") and B273HU (27"), the Dell SP2309W, and the Samsung 2342BWX.

QSXGA

QSXGA (Quad Super Extended Graphics Array) is a display resolution of 2560×2048 pixels with a 5:4 aspect ratio. Grayscale monitors with a 2560×2048 resolution, primarily for medical use, are available from Planar Systems (Dome E5), Eizo (Radiforce G51), Barco (Nio 5,MP), WIDE (IF2105MP), IDTech (IAQS80F) and possibly others.

A similar resolution of 2560×1920 was supported by a small number of CRT displays via VGA such as the Viewsonic P225f when paired with the right graphics card.

WQSXGA

WQSXGA (Wide Quad Super eXtended Graphics Array) describes a display standard that can support a resolution up to 3200 x 2048 pixels, assuming a 1.56:1 (25:16) aspect ratio. As of July 2008, the Coronis Fusion 6MP DL by Barco supports 3280 x 2048.

QUXGA

QUXGA (Quad Ultra Extended Graphics Array) describes a display standard that can support a resolution up to 3200 x 2400 pixels, assuming a 4:3 aspect ratio. As of mid 2007, no monitor natively capable of this resolution is available.

WQUXGA

WQUXGA (Wide Quad Ultra Extended Graphics Array) describes a display standard that can support a resolution up to 3840 x 2400 pixels, assuming a 16:10 aspect ratio.

This resolution is exactly four times 1920x1200 (in pixels) and was released as a product in June 2001 by an IBM display panel built into the IBM T220 LCD monitor, IBM T221 (models DG1, DG3, DG4, DG5), Iiyama AQU5611DTBK, ViewSonic VP2290b ^[3], ADTX MD22292B and IDTech MD22292 (models B0, B1, B2, B5, C0, C2; all other brands are in fact relabeled IDTech models, IDTech does not sell these monitors^[4]). Most display cards with a DVI connector are capable of supporting the 3840x2400 resolution. However, the maximum refresh rate will be limited by the number of DVI links that are connected to the monitor. 1, 2, or 4 DVI connectors are used to drive the monitor using various tile configurations. Only the IBM T221-DG5 and IDTech MD22292B5 support the use of dual-link DVI ports using an external converter box.

Most systems using these monitors use at least 2 DVI connectors to send video to the monitor. These DVI connectors can be from the same graphics card, different graphics cards, or even different computers. Motion across the tile boundary(ies) can show tearing if the graphics card(s) are not synchronized. The display panel can be updated at a speed between 0Hz and 41Hz (48Hz for the IBM T221-DG5, and IDTech MD22292B5). The refresh rate of the video signal can be higher than 41Hz, or 48Hz, but the monitor will not update the display any faster if graphics card(s) do so.

As of January 2007, none of the WQUXGA monitors (IBM, ViewSonic, Iiyama, ADTX) are in production anymore. The highest-resolution color displays on sale are WQXGA. However, Eyevis produces a 56" LCD named EYELCD 56 QUAD HD which can deliver 3840x2160[1] And a 64 inch LCD monitor called the EYE-LCD6400-4K delivering a resolution of 4,096 x 2,160 pixels [2].

Toshiba announced its intention to market a new WQUXGA 22" monitor in November 2007^[5]. However, it has not done so to date. Neither Toshiba nor public speculation on the Internet has provided any new information since the November 2007 press release.

Comparison chart

view talk edit	x (width)	y (height)	Pixels (Mpx)	Aspect ratio	Proportion difference of total pixels							Typical sizes (inch)	Non-wide version	Note
Name	x (width)	y (height)	Pixels (Mpx)	Aspect ratio	WXGA	WXGA+	WSXGA+	WUXGA	UW-UXGA	WQHD	WQXGA	Typical sizes (inch)	Non-wide version	Note
WXGA	1280	800	1.024	1.6	—	−21%	−42%	−56%	−63%	−72%	−75%	15–19	XGA
WSXGA/WXGA+	1440	900	1.296	1.6	+27%	—	−27%	−44%	−53%	−65%	−68%	15–19	XGA+
WSXGA+	1680	1050	1.764	1.6	+72%	+36%	—	−23%	−36%	−52%	−57%	20–22	SXGA+
WUXGA	1920	1200	2.304	1.6	+125%	+78%	+31%	—	−17%	−38%	−44%	23–28	UXGA	Displays 1920×1080 video with slight letterbox
UW-UXGA	2560	1080	2.765	2.37	+170%	+113%	+57%	+20%	—	−25%	−32%	29, 34	SXGA+
WQHD	2560	1440	3.686	1.778	+260%	+184%	+109%	+60%	+33%	—	−10%	27
WQXGA	2560	1600	4.096	1.6	+300%	+216%	+132%	+78%	+48%	+11%	—	30+	QXGA	Complements portrait UXGA

References

[1] NEC: プレスリリース : 2002年07月01日-1

[2] NEC: プレスリリース : 2005年01月19日-1

[3] ViewSonic: Company Info: Press Center: Press Releases

[4] About Purchase of the Ultra High-Resolution and Ultra High-Density LCD Monitor

[5] 東芝ソリューション株式会社｜ニュース｜2007年11月1日

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[2]

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[5]

v t e Computer display standards
PC-compatible video hardware	MDA (1981) CGA (1981) HGC (1982) Plantronics (1982) Quadcolor (1983) Tandy (1984) PGC (1984) EGA (1984) JEGA (1987) MCGA (1987) VGA (1987) 8514 (1987) SVGA (1987) AX-VGA TIGA (1989) XGA (1990) EVGA (1991)
Standard display resolutions	160×120 320×200 640×200 640×350 640×480 720×348 800×600 1024×768 1152×864 1280×1024 1400×1050 1600×1200 2048×1536 2560×2048 3200×2400 4096×3072 5120×4096 6400×4800
Widescreen display resolutions	240×160 320×240 432×240 480×270 480×320 640×400 800×480 854×480 1024×576 1280×720 1280×768 1280×800 1366×768 1366×900 1440×900 1600×900 1680×945 1680×1050 1920×1080 (1080p) 1920×1200 2048×1152 2560×1440 (QHD) 2560×1600 3200×2048 3840×2160 (4K UHD) 3200×2400 3840×2400 5120×2880 5120×3200 5760×3240 6400×4096 6400×4800 7680×4320 (8K UHD) 7680×4800 15360 × 8640