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Types of large screens

Application of large screens

How to choose type & size of large screen?

Prices of large screens

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Large electronic LAMP SCREENS, wedgebase displays, electronic signs

Also read issue "Outdoor Video and outdoor TV Systems" of Vladimir Krylov about different types of large electronic screens.

The world practice has shown that the latest generation full color electronic lamp screens are indispensable in conditions of changeable climate, extreme temperatures and high humidity. This is the only type of electronic displays / screens / signs capable of working under conditions of direct sunlight, 5-10 years in the round-the-clock mode in any weather!

Long life (approximately 20,000 hours), reliability, simple maintenance and service and modular principle of construction are the general advantages of lamp electronic signs / displays / screens.

Full color lamp electronic video screens with color palette of 65536 and 16, 7 million colors are competing successfully with famous SONY screens. The leading advertising companies throughout the world prefer them to all other types (E.g, Times Square in New-York (AT&T, ITT).

Lamp screens are the brightest and most suitable for operation facing direct sunbeams (no other type can ensure that: in direct sunlight many screens lose color and images become practically indistinguishable). Besides, reasonable prices and quick assembly (from 2 to 5 months) provide additional motivation to customers.

However, there is also a number of drawbacks - low (especially for small screens - less than 5x7m) resolution and somewhat greater energy consumption in comparison with led signs.

It is necessary to note that resolution is proportional to the sizes of an electronic sign / screen / display: the bigger is the screen, the better is the resolution. The improvement of image quality for electronic lamp displays / signs / screens can be achieved also by reducing the distance between lamps (pitch). Lamp signs / screens / displays with the pitch of 2; 1.75; 1.5; 1 and 0.85 inches are now available.

Besides, one should always consider the concept of "minimally sufficient resolution" (for systems with big linear dimensions). It is determined, first of all, by linear sizes and the distance between the screen and the ground, concerning the view level of potential spectators (for example, if the screen has linear sizes of 6x8m and is located more than 7 meters above the ground, its minimal sufficient resolution for a TV image is 70x100 and its optimum resolution is 120x160 pixels. If the linear sizes are 9x12m and its height is more than 10 meters, minimal sufficient resolution for a TV image is 90x120, optimum resolution is 120x160 pixels).

Large linear sizes of an electronic screen are especially important for the efficiency of influencing the audience. Both sphere and the range of influence are increasing, hence the information displayed becomes accessible to the greater audience and has more effective influence.

Thus if you need large bright screens (from 4x6m) for using them in round-the-clock mode in any weather in squares, on house roofs, at central highways, etc., large electronic full color lamp screen is unconditionally the best for you, especially if you consider the correlation "price / features".

Technical characteristics of large full color lamp electronic screens/ signs/displays

• Function under any weather conditions at temperatures from -50C up to +50C.
• Can have any rectangular or square configuration.
• Round-the-clock mode of operation.
• Are controlled by IBM PC-compatible computer.
• Are assembled from modules of two types with the resolution of 64 pixels and the pitch of 1 inch; 16 pixels at 1.5 inches pitch.
• Special louvers ensure excellent visibility under direct sunbeams.
• Computer animation, direct TV and video broadcast.
• The bulbs with 3.85-5.0 W capacity.
• Pixel composition with 4 components - red, green, blue, white or red, green, blue, blue.
• The clearness and brightness of image depend on screen dimensions, its position relatively direct sunbeams and the module resolution of 64 pixels with 1 inch pitch - higher resolution - and 16 pixels with 1.5 inches pitch - standard resolution.
• Color palette of more than 65536 or 16.7 million colors - dynamical image
• A standard 6x8 meter size of a lamp screen displays the image close to the TV image quality.

An average time for manufacture is 12-20 weeks.

If you have a look at the "price" section you will notice that if you need a large electronic screen with the image area more than 35 m2 (i.e. with the linear sizes of 5x7m), you should choose a new generation lamp full color screen. This screen should be chosen if you need it for advertising or informational activities on wide busy city streets, central highways, squares, stadiums; for large concerts or meetings.

The main feature of new generation full color lamp signs / screens / displays is that the bigger is the size, the better is the system as a whole - its resolution, its advertising efficiency and informational influence. And, moreover, the less is the average price for 1 m2!!!

Besides, the prices for led signs are higher than for lamp ones (3 000 $ - 15 000 $ more for every!!! square meter).

The prices for gas discharging screens (including CRT type of screen - Jumbo Sony type) are also higher than for lamp systems (2 000 $ - 25 000 $ more for each square meter!!!).