Nowadays various LED displays are used for
outdoor advertising. They can hardly attract the attention of the audience with
time, as the audience have been accustomed to outdoor LED displays. However, 3D
LED displays, a new invention of outdoor advertising, are introduced to market.
With the new technology, the audience can watch the 3D video on the large LED
display without wearing glasses, thus the new technology is becoming more and
more popular.
The article gives you a brief introduction
of the 3D outdoor LED display
First, based on the perspective principle,
you need two LED displays installed at 90 degrees or being curved. The curved
shape is used to present two viewing angles of one image at the same time. The
left eyes of the audience can get the left view of the image presented by the
left display, while the right eyes of the audience can get the right view of
the image presented by the right display. As there is a certain parallax when
people observe the scene of an object, the left and right eyes can obtain
images of the same object from different angles, so the subtle difference
allows the brain to calculate the spatial coordinates between objects, and the
audience can feel the image is 3 dimensional.
Second, specially-made 3D Video Contents
The most important factor to create a 3D
led screen is the 3D video content. Currently, most of 3D effects are achieved
by combination of distance, size and shadow, perspective of objects to make a
3D effect in 2D picture.