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ADDITIONAL
INFORMATION
ADDITIONAL INFORMATION
■ Glossary
DLP™ technology
This stands for Digital Light Processing. DLP uses the DMD™
optical semiconductor chip developed by Texas Instruments.
Component video signal
This signal is sent with its luminance signal and color signal
independent. It creates higher image quality compared with an
ordinary composite video signal because it bypasses the mixing
and separating circuits. This signal is sent in three lines: the
luminance signal (Y) and two color difference signals (P
B/CB,
P
R/CR).
S video signal
S stands for Separate. This signal is sent with its luminance
signal (Y) and color signal (C) separately. A 4-pin mini DIN
connector and cable are used for connection.
Composite video signal
This is the most common type of video signal. The luminance
signal and color signal are sent combined in one line. Mixing
and separating processes are necessary on both the send and
receive sides. A pin cable is used for connection.
RGB signal
An RGB signal transmits color information by using a numeric
representation of the primary colors of red, green and blue
separately. When the signal is received, it can be expressed in
various colors by adding and mixing colors. This signal is
widely used for sending and receiving color images between
computers. Horizontal and vertical sync signals are also
necessary.
D connector
* This connector is designed for the Japanese D format only.
This connector is used for sending and receiving the image
signal between the latest type of A/V components. This
connector can receive the component signal by using a D
connector cable. There are five levels (D1—D5) of perfor-
mance characteristics. This unit is compatible with D1, 2, 3 and
4.
DVI connector
A digital RGB signal is sent from a computer to this connector
differencially. A 24-pin connector and cable are used for
connection.
Standby
The state under which the circuit to receive infrared-signals
from the remote control is activated but other main circuits are
turned off. A small amount of power is consumed in this state.
Test pattern
Test patterns are stored in this unit to adjust the position and
focus of the projected image on the screen.
Aspect ratio (aspect)
This basically means the length-to-width ratio of an image.
This unit’s menu deals with two kinds of aspect ratio: the
screen aspect that sets the length-to-width ratio of the screen to
be used, and the display aspect that changes the size and aspect
ratio of the images to be projected for different types of input
signal.
Additional information
Ceiling mount bracket
This is the mounting hardware used when hanging this unit
from the ceiling. Two types of ceiling mount bracket (low
ceiling and high ceiling) are available for different heights of
the ceiling. These mounts are optional.
Interlace
The common type of scanning for most televisions. It divides
into two fields: even and odd numbered lines of the field to
build one frame of an image.
Progressive
This displays all the scanning lines of the entire frame at one
time. It greatly reduces the flicker that is more noticeable on a
larger screen to create a sharp and smooth image. This unit
projects by progressive scanning.
Key stone
If this unit has an elevation or depression angle when project-
ing on the screen, the image is distorted in a trapezoid. This
item electrically corrects the distortion. Two types of correction
are available; “Normal correction” and “Full correction”.
Letter box
This is the method to convert the content of a film in landscape
orientation to 4:3 signal. It is possible to watch the landscape
image without trimming by adding a black bar on the top and
bottom of the screen. Vertical resolution may be sacrificed to
some extent.
Squeeze
This method horizontally squeezes the film so that the aspect
ratio is 4:3 when recording the film on a video medium. The
squeezed image must be passed through the desqueezing circuit
otherwise the image remains in a slender shape.
Vista size
One of the film sizes. The aspect ratio is 1.85:1 in North
America and 1.66:1 in Europe.
Cinema scope size
This is the widest film size that uses a 70 mm film. The aspect
ratio is 2.35:1.
• DLP™ and DMD™ are trademarks of Texas Instruments.