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Our Dead Pixel Policy
Ref: 437
Introduction
LCD displays are made up of a set number of pixels and each pixel is
made from 3 subpixels; one Red, one Blue and one Green. Every sub-pixel
is addressed by its own transistor and so the manufacture of a glass
substrate is very complex. Due to the nature of the manufacturing
process, occasional defects can occur. Pixel defects or failures
cannot be fixed or repaired and can happen at any stage in the LCD’s
life.
To regulate the acceptability of defects and to
protect the end user, ISO have created a standard for manufacturers
to follow. ISO 13406-2 recommends how many defects are acceptable
in a display before it should be replaced, within the terms & conditions
of warranty. All reputable manufacturers conform to and support the
ISO 13406-2 standard.
Pixel defects
The table below shows the allowable number of malfunctioning pixels
that are acceptable, depending on the native resolution of the LCD
and allowing for 2 malfunctioning pixels per million pixels.
| Native Resolution |
No. of Pixels |
No. of Million Pixels |
Allowable Defects |
| 1024 x 768 |
786,432 |
0.79 |
2 |
| 1280 x 1024 |
1,310,720 |
1.31 |
3 |
| 1600 x 1200 |
1,920,000 |
1.92 |
4 |
| 2048 x 1536 |
3,145,728 |
3.15 |
6 |
The table below shows the allowable number of malfunctioning
sub-pixels that are acceptable, depending on the native resolution
of the LCD and allowing for 5 malfunctioning sub-pixels per million
pixels.
| Native Resolution |
No. of Pixels |
No. of Million Pixels |
Allowable Defects |
| 1024 x 768 |
786,432 |
0.79 |
4 |
| 1280 x 1024 |
1,310,720 |
1.31 |
7 |
| 1600 x 1200 |
1,920,000 |
1.92 |
10 |
| 2048 x 1536 |
3,145,728 |
3.15 |
16 |
The table below shows the allowable number of malfunctioning
sub-pixels that are acceptable within a 5 x 5 block of pixels, depending
on the native resolution and allowing for 2 malfunctioning sub-pixels
within a 5 x 5 block, per million pixels.
| Native Resolution |
No. of Pixels |
No. of Million Pixels |
Allowable Sub-pixel
Defects Within 5 x 5 Block |
| 1024 x 768 |
786,432 |
0.79 |
4 |
| 1280 x 1024 |
1,310,720 |
1.31 |
7 |
| 1600 x 1200 |
1,920,000 |
1.92 |
10 |
| 2048 x 1536 |
3,145,728 |
3.15 |
16 |
The above is relevant to Class II LCD panels. |
CATALOG SUSPENDED
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17" Viewsonic VA703b
Ref: 762
The ViewSonic® 17" VA703b LCD delivers impressive front-of- screen performance thanks to fast 8MS VIDEO RESPONSE, 280 nits of brightness (typ) and a 600:1 contrast ratio (typ). The VA703b delivers crystal-clear graphics and SMOOTH, FULL-MOTION VIDEO IN BRILLIANT COLOR. The OSD power lock secures your screen settings and the Kensington® security port provides theft deterrence. The stylish, slim bezel makes the VA703b an easy fit with any desktop decor while saving valuable desktop real estate. Home users, small office, education and government users will find that the elegant, affordable VA703b is an ideal fit
Price:
£99.00 exc VAT
(£113.85 Including VAT at 15%)
CATALOG SUSPENDED
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17" Asus VB172T
Ref: 765
ASUS SPLENDID™ Video Intelligence Technology carefully evaluates every pixel in every frame and dynamically adjusts them according to conditions most favorable to the human eye.
VB172T comes with a narrow frame and provides a wide viewing angle to ensure that it looks as good as the images being displayed.
Splendid Video Intelligence Technology fine tunes the color, brightness, contrast and sharpness of images in different video applications and offers 5 preset video modes selection via hotkey and 3 skin tone options.
Adopt ASCR (ASUS Smart Contrast Ratio) Technology to provide the high contrast ratio of 1400:1, which can dynamically adjust contrast between black and white, and to create sharper and brighter images, especially during video and movies.
Quick 5 ms response time delivering smooth video display
Price:
£116.95 exc VAT
(£134.49 Including VAT at 15%)
CATALOG SUSPENDED
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19" Asus VW192S
Ref: 210
Large screen space
With the 16:10 golden ratio for widescreens, the VW192S LCD monitors can accommodate multiple Windows on screen to increase productivity. It's 16:10 widescreen delivers a wider viewing angle that is most comfortable to human eyes. For entertainment, the VW192S is perfect for displaying DVDs and high-resolution graphics without losing image details.
5ms response time to deliver smooth video quality
Intelligent image enhancement
Splendid Video Intelligence Technology fine tunes the color, brightness, contrast and sharpness of images in different video applications and offers 5 preset video modes selection via hotkey and 3 skin tone options, providing video quality comparable to the best TVs.
Blast music with 2 x 1W hidden speakers
Sophisticated ID Design
The VW192S is decorated with shining diamond-cut alumium strip and its detachable base with concentric-circle lines is easy for wall mount.
Cable Management
The VW192S is designed with cable holder to get rid of tangling cables and wires and keep desks neat.
Price:
£118.00 exc VAT
(£135.70 Including VAT at 15%)
CATALOG SUSPENDED
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19" Samsung SM960BG
Ref: 212
The new SM960BG is a Samsung display that comes with the groundbreaking MagicClear system. And that means a whole new world of clarity. Thanks to its innovative coating, a MagicClear display reflects light and reveals crystal clear images that are impossible to achieve with a conventional LCD display. What’s more, this high-brightness, anti-reflective coating produces distortion-free images and eliminates glare. So you truly feel you’re at the heart of the action.
19 inch TFT LCD Display
Brightness - 300cd/m2
Contrast Ratio 700:1
Viewing Angle (H/V): 160°/160° (CR>5)
Pixel Pitch: 0.294 (mm)
Response Time - 4ms
Special Features: .Magic Clear . MagicTune with Asset Management .Safe Mode(Down Scaling in UXGA) .MagicBright2 .MagicColor .MagicZone .Magic Rotation(Auto Pivot)
Stand: Type - Magic Stand • Function - Height Adjustable, Pivot, Foldable
Price:
£118.00 exc VAT
(£135.70 Including VAT at 15%)
CATALOG SUSPENDED
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22" Asus MW221U
Ref: 248
High-quality 16:10 widescreen panel
1680 x 1050 high resolution and wide viewing angle make the LCD monitor perfect for viewing high-quality DVD images. 16.7 million display colors deliver rich and colorful images to surprise your eyes.
Fit two A4 size pages on screen
The 22" widescreen of MW221U provides a 27% wider viewing area compared with 19" monitors and can also fit two A4 size pages at the same time, meaning ample screen space for different contents. The MW221U helps double your working efficiency.
DVI Video Input with HDCP Supported
One of the first LCD monitors to incorporate DVI input with HDCP (High-Bandwidth Digital Content Protection) supported to ensure video signal integrety and image quality and prepare for next generation upgrade of computer operation system.
No more ghostings
Trace Free Technology accelerates the fastest response time to 2ms among 22" widescreen LCD monitors, meaning no more ghostings and video latency during movies or games.
Intelligent image enhancement
Splendid Video Intelligence Technology fine tunes the color, brightness, contrast and sharpness of images in different video applications and offers 5 preset video modes (Scenery, Theater, Games, Night View and Standard) selection via hotkey and 3 skin tone options (Reddish, Yellowish and Natural).
Price:
£220.00 exc VAT
(£253.00 Including VAT at 15%)
CATALOG SUSPENDED
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22" Samsung SM225BW
Ref: 244
Imagine having more room to spread out. The Samsung 225BW combines a 22" screen with a 16:10 widescreen aspect ratio to give you a bigger window on your world. Whether you use that power to work more efficiently or to watch a bigger blockbuster, you get shart text and crisp motion through a fast 5 ms (GTG) response time, 700:1 contrast ratio and exclusive technologies like MagicColor™ and MagicBright2™. And it's all topped off by a height-adjustable stand! With the Samsung 225BW, it's not hard to imagine.
Viewable area: 22 inch wide
Pixel Pitch: 0.282 mm
Brightness (Typical): 280 cd/m2
Response Time (Typical): 5ms (GTG)
Viewing Angle (H/V, Typical): 160°/160° (CR>5)
Native Resolution: 1680 x 1050
Interface: Analog/Digital
Special Features: MagicTune with asset management, MagicColor, MagicBright2
Price:
£232.00 exc VAT
(£266.80 Including VAT at 15%)
CATALOG SUSPENDED
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Clearance Items
