TRI-COLOR MOLDED BACKLIGHTS
OFFER MORE BRIGHTNESS IN DIFFERENT
COLOR MODES WITH FEWER LEDs
Strongsville,
OH, February 2001 – New Tri-Color LED Molded Backlights from
Global Lighting Technologies, Inc. (GLTI), Inc. employ patented
MicroLens‰ molded light guide technology to enable display designers
to achieve virtually any color in their backlit LCD displays,
with as few as just one LED.
They are ideal for small to mid-size displays
where different colors would be used to convey information. As
an example, cellular phones could use tri-color LED backlights
to convey information, such as warnings, menu options or urgent
incoming calls, by the color of the display.
The molded light guides utilize an LED with 3
chips that can combine Red, Green and/or Blue in the varying saturations
to yield the colors desired by the display designer. A certain
percentage of light from each of the chips is utilized to achieve
the color desired (e.g., amber, violet or white).
MicroLens™ is a patented, LED–based
technology that offers similar or greater initial brightness than
EL (electroluminescent) backlighting technology, with 20,000 to
50,000 hours or more time to half brightness over its life, depending
on the chip colors used and the drive current.
Designers of LCD modules can employ fewer LEDs
using MicroLens technology than with other conventional light
pipe or light guide backlighting technologies, with smaller displays
using as few as one LED. MicroLens light extraction features are
molded into the light guides that encase the LEDs, enabling a
larger area to be lit with a single LED than with any other LED-based
backlighting technology. For example, an area measuring 3" square
or 1" x 3" can be backlit with a single LED using these MicroLens
molded light guides, whereas other technologies may require 2
or more LEDs. In addition to saving costs by reducing the number
of LEDs from 2 or more to 1, the complications that can arise
from mixing the colors from two LEDs are eliminated.
GLTI's tri-color molded backlights can be used
for cellular phones, medical instruments, test & measurement instrumentation,
PDAs, pagers and other portable devices. Pricing is approximately
$4.00 each in volumes of 250,000 or more for single-LED backlights
that are up to 2 square inches or less.
For more information on MicroLens™
and backlighting technology, contact David DeAgazio at Global
Lighting Technologies, Inc., 25 Andrews Circle, Brecksville, OH
44141. Tel: 440-922-4584; Toll-Free: 866-922-4584. Fax: 440-922-4585.
e-mail: info@glthome.com; web: www.glthome.com.
