Olympic Games big screen display LED screen world

If the screen size is larger than 33 feet (higher than a floor), what would you choose? The use of LCD or PDP screen may not meet the requirements, CRT, of course, can not, and not to mention the organic light-emitting.

I'm afraid there is only one display technology to meet the requirements, that is, LED-display.cnLEDw.com/ >LED display.

It is very difficult to make large display screen. Currently, the largest LCD screen can do 108 inches (diagonal), and the plasma (PDP) screen can be done in 150 inches, to be greater, special equipment needs to be developed.

The projector seems to be a good solution, but it's not the case. In the room, the projection device works well, but in the outdoor open space, the external environment light will make the projection screen very fuzzy, especially for the front projection equipment.

This is why Panasonic will install LED display at the venue. The Japanese consumer electronics giant will provide the Olympic Games with 25 code named ASTROVISION large LED display, with a total area of up to 4000 square feet. Using two LED units of ----7.5x7.5 or 14x14 inches in size, a 551 square foot screen, the 16:9 screen will be installed in the 1296 LED units. The Astrovision installed 58000 LED units.

The benefit of self luminous LED is that it can easily increase brightness. The brightness of Astrovision reached 5000cd/m2, the brightest PDP can reach 1600cd/m2, and the Astrovision is not flat, so the tilt of the light to the ground, not as to the audience,

Wide angle high

In public, the installation of the display must have a good perspective, so that the audience can get a clear image in different locations. This is precisely the advantage of LED.

Because the Astrovision screen is made up of LED units, each LED can be used as a light source but can be viewed at a 150 degree angle, and will not appear the same as the LCD screen because of the distortion of the angle. An audience of 656 feet on a 33*33 foot LED screen can not only clearly see the motion picture, but also can clearly see the results of the game and the name of the player.

Astrovision has installed 1728 LED units in a metal lattice, each unit is installed R, G, B three LED lights in the 8mm interval, as long as the watch in the far distance of 10 feet, can be mixed color light full color image, the image vividly shows the real. Because each LED lamp operating frequency of 1.6kHz, can provide very fast response time.

Of course, for less than 23 feet of the display, LCD and PDP screen is more suitable, because the LED screen is composed of large LED array, it is difficult to achieve miniaturization.

Source: International Electronic Business