Ultrabright “BrightEra” Transmissive Microdisplays
Sony Original Inorganic Alignment Film and New LCD Technologies
Achieve the Industry’s Highest Level of Brightness
||Use of an inorganic
alignment film enhances
light resistance, making
it possible to increase
||A new drive system and
leading-edge fine fabrication
a high aperture ratio
and high picture quality.
||Normally black mode improves
||These technologies have
enabled development of
the ultrabright 0.79-type “BrightEra” transmissive
||* “BrightEra” and are trademarks
of Sony Corporation.
Figure 1 Development Background
|Demand for business front projectors is
expanding yearly as use for business presentations
increases and the education
market adopts information technology. In
addition, even higher projection brightness
is desired in teleconferencing rooms,
open spaces where meetings are held,
classrooms and other bright environments.
As a result, market growth for
high-brightness projectors in the 3,000 to
5,000 lm class is expected in the future.
In particular, devices in the 4,000 to 5,000
lm class are capable of providing sufficient
screen contrast with a 100-inch class
screen even without turning off the room
lights, making this a critical brightness
zone that can project clear video images
even under bright ambient lighting conditions.
Earlier projectors could only
achieve this brightness range with largescale
devices in the 0.99 to 1.3-type class
that use organic alignment films. Sony has
employed unique inorganic alignment
film technology to develop the 0.79-type
“BrightEra” transmissive microdisplay
that achieves the industry’s highest level
of brightness, making it possible to realize
bright portable projectors. This issue
introduces the core technologies that have
contributed to the creation of “BrightEra”
microdisplays for high-brightness projectors.