Corporate . Public Sector . Education . SME . Healthcare . Leisure
0208 893 1333
At Viscom we supply most of the major Plasma and LCD brands. and as such have the purchasing power to offer our customers competitive pricing across the entire range, we work closely with a number of leading manufacturers that between them provide a flat screen display solution for every application. We have selected these suppliers because of product reliability, value for money and because their products come with comprehensive warranties.
Large screen displays (30” diagonal or larger) are dominated by two major technologies – plasma and LCD (sometimes known as TFT). Which is best? This is a difficult question as their advantages associated with both series of products.
Plasma has the following advantages
• Grey scale response / contrast - Plasma technology can deliver superior subtleties - which means plasmas can generally give you more detail in dark picture areas.
• Response Times - Response time is the amount of time, measured in milliseconds, that it takes for a pixel to go from inactive to active and back again. Although the latest LCD screens have made big improvements in this area, plasma is still considerably better, so its picture quality generally suffers less.
• Size - LCD is catching up, but it's still cheaper for manufacturers to use Plasma for really big screen sizes - certainly 42in and above - than it is for them to use LCD. On the other hand, plasma isn't really viable at sizes smaller than 32in.
• Viewing Angle - LCD pictures start to lose lots of contrast and colour when viewed at an angle. Pretty much all plasma screens, on the other hand, retain their quality up to around 160 degrees.
• Colour Saturation - Plasma traditionally scores high here because of the way it blocks light, turning off pixels when they're not needed so that no stray light can dilute its colours. With LCD there's always some stray light in the mechanism, which adds a greying influence to colours thus makes authentic tones more difficult to see.
LCD DISPLAYS
• No screen burn - Plasma screens are susceptible to something called screen burn, which occurs when a bright image, like the sky news logo, is displayed on screen for an extended period of time. The constant saturation 'tires' plasma's phosphors, leaving a permanent shadow of the bright image behind. LCD technology is pretty much immune to this problem.
• Slimness - Because there is no need for gas filled or heavy glass fronts in a LCD screen, LCDs tend to be slimmer and lighter than plasmas.
• Brightness - LCD technology can generally deliver brighter pictures than a plasma - though more brightness isn't automatically better if it is used to disguise a lack of contrast.
• Power consumption - LCDs generally use less power than plasma TVs because they don’t need to power hundreds of electrodes to stimulate phosphors.
Free Technical Support – all Viscom customers are automatically entitled to free, unlimited technical support by telephone, e-mail or video conference.
Presentation Furniture, Cabinets and Lecterns
Plasma LCD Trolleys
Rail Systems and Equipment
PA Equipment
Induction Loop Systems
Mixer Amplifiers
Audio Speakers
Wireless Microphones
CD and Digital Media Players
Recording Equipment
Microphones
Audio Mixers
0208 893 1333
We welcome government, educational and other public sector customers.
These organisations can order by official purchase order to receive an automatic credit account.
This includes:
Schools & Colleges
Universities
NHS and Health Service
Police, Fire and Ambulance Services
Local Authorities and Councils
Government Agencies
MOD Establishments
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