Transcript new technology

2006 NAHBA
CONFERENCE
NEW SIGN
TECHNONOGY
DIGITAL OUTDOOR
ADVERTISING
LIGHT EMITTING DIODE
A Light Emitting Diode (LED)
is a very small light source
that fits easily into an
electrical circuit. But unlike an
ordinary incandescent bulb,
the LED don't have a filament
that will burn out, and it
doesn't get especially hot. It is
illuminated solely by the
movement of electrons in a
semiconductor material, and it
lasts just as long as a
standard transistor.
Evolution of Digital Technology
In the beginning…
High Voltage
Incandescent Lamps
•15 to 55 watts per lamp = high
operating costs
• 1000 hour life = high maintenance
costs
• Pixel spacing of 2.5” to 10” =
viewing distances of 900’ to 3,600’
Evolution of Digital Technology
Then in the late ’80’s…
Low Voltage
Incandescent Lamps
•3 to 5 watts per lamp = lower
operating costs
• 5,000 hour life = lower
maintenance costs
• Pixel spacing of 1” to 2” =
viewing distances of 350’ to 700’
Evolution of Digital Technology
Today’s technology…
Light Emitting Diodes (LED)
• 1/10 to 1/40 the energy of the
incandescent light bulbs
• 100,000 hour life = very long life
• Pixel spacing of .5” to 2” = wide
range of viewing distances and high
resolution allowing for clear and
concise messages that can duplicate
the traditional printed content.
LIGHT OUTPUT
An LED has a wide
range of light output
based on the quality of
the part, the ‘bin’ and
the amount of current
that is passed through
it. The light output
from an LED is focused
light. The epoxy
‘package’ around the
die and reflector
assembly creates a
specific output pattern.
CIRCUIT BOARD
LED’s are soldered onto a printed circuit board
(PCB) along with other components required to
control them. The CIRCUIT BOARD is the first
step in building an LED matrix display.
PIXEL… MATRIX
A PIXEL is one or more LEDs forming one point of
a picture. Pixels can be made up of single color
(monochrome) or multiple colored LED’s (RGB).
Pixels are arranged with different spacing
to produce character sizes that can be
read at different viewing distances. The
spacing is measured from the center
of one pixel to the center of the next…
called PIXEL SPACING.
An image is made up of pixels and is
programmable. A matrix is
designated by X pixels high x Y
pixels wide.
HOST COMPUTER
The HOST refers to the
editing computer that is not
directly connected to the
sign. It typically has a phone
line and modem to allow for
communications between
itself and the remote.
Because of this, the host
can be located any distance
from the display.
REMOTE COMPUTER
The computer located in
the sign is called the
REMOTE. It typically
receives data from the
host via a phone line
and modem to run the
sign. The remote
contains memory for
storage of messages.
POWER SUPPLY
POWER SUPPLIES
are mounted onto the
rear of the Back Plates
to distribute power to
LED Circuit Boards.
FACE PAN
The FACE PAN is a
sheet metal
structure with holes
designed for holding
the back plate and
LED circuit boards.
GASKET
The GASKET is a rubber seal between the back plate
and face pan to prevent moisture from penetrating
around the LED holes in the face pan and back plate.
FACE FRAME
The FACE FRAME is a structure designed
to support LED Face Pans.
LOUVERS
LOUVERS are
extruded aluminum
strips placed above
each row of LED’s. The
louver serves two
purposes; to block
sunlight from washing
out color from LEDs
and they also help to
stiffen the face.
CABINET
The face frame is then attached to a CABINET which
also houses the distribution panels and other power
components. The cabinet also further protects the
electronics from the environment.
LIGHT SENSING PROBE
The LIGHT SENSING PROBE is located outside the
display and faces downward. The probe reads the
ambient light, then sends this data to the remote
controller. The factory setting is 85% of light output
capacity during the day and 8% of light output capacity
during the night. These settings can be modified by a
sunrise/sunset table and/or manually.
SOFTWARE BRIGHTNESS
ADJUSTMENT
The LIGHT SENSING PROBE is located outside the
display and faces downward. The probe reads the
ambient light, then sends this data to the remote
controller. The factory setting is 85% of light output
capacity during the day and 8% of light output capacity
during the night. These settings can be modified by a
sunrise/sunset table and/or manually.
DIGITAL OUTDOOR
ADVERTISING
THANK YOU