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D-ILA™ — Projector Device Innovation
D-ILA™ Structure
The D-ILA™ device is a reflective type of LCD that
delivers a higher aperture ratio (more than 93%)
than a transmissive LCD panel, and is comprised of
groups of pixels which correspond to each image
dot. Also unlike conventional transmissive LCD
panels (in which the driving transistor is mounted on
the same surface as the pixels), the D-ILA™ s
driving IC substrate is located behind the liquid
crystal layer. As a result, the D-ILA™ device can
achieve higher brightness and higher resolution at
the same time. In addition, thanks to the vertical
alignment ("homeotropic" structure) of the liquid
crystal layer, projected images also have much
higher contrast.
D-ILA™ Operation
The light from the xenon lamp travels through a
polarized beam splitter (PBS), which is reflected off
the D-ILA™ device, then passed through the
projection lens and onto the screen.
Device Structure
Front view
Side view
Driving IC
(CMOS substrate)
Planarized layer
Pixel
Reflective pixel
electrode
Liquid crystal layer
Transparent electrode
Glass substrate
Input signal written directly in
a form of electric signal
Operation Principle
D-ILA™
PBS (Polarized
device
Beam Splitter)
Projection lens
Input signal
Screen
Lamp
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