Product guide
Pan-and-Scan A method to t source material of a
different resolution or aspect ratio onto another. Sometimes
used with computer input when the input resolution ex-
ceeds the resolution of the display device. Used extensively
for broadcast and DVDs, it simply crops the sides of wide-
screen material and the transfer operator chooses the best
part of the frame to show. Often an electronic camera pan
is used to change the area being shown. This is used when
characters are talking to each other but one is off screen
due to cropping and they become the focus of the shot.
PaneLock™ The PaneLock™ Security System works
with Premier Mounts’ CTM and PCM Series Mounts. This
patent-pending device prevents the removal of a at-panel
display from the mounting plate. The integrated theft-
resistant clips latch the mounting bracket arms to the rods
on the wall plate. A security screw then locks the pieces in
place.
PC-3D Ready A projector that is PC 3D Ready can ac-
cept a 120Hz frame-sequential 3D signal from a computer
via either NVIDIA’s 3D Vision system or one of several
educational software suites. These projectors are not
compatible with the HDMI 1.4 3D specication used on 3D
Blu-ray players and set-top boxes. This type of projector is
also referred to as 3D Ready.
PDF (Portable Document Format). Developed by Adobe
Systems to capture and deliver most document types
without changing the format or recreating it within another
application. Acrobat Reader is required to view a PDF
document.
Phosphor A direct-view, at-panel display that uses ion-
ized gas to emit ultraviolet light that then excites phosphors.
Plasma is a state of matter like solid, gas or liquid. Plasma
screens are challenged by latency issues without a priming
voltage, which causes manufacturers to leave a voltage
running across a cell in order for it to change state quickly
enough to update a picture. This tends to boost black levels
as every pixel is partially on all the time. This is why plasma
contrast ratios aren’t as high as CRT although still very
good. Also, because plasma uses phosphors it is suscep-
tible to possible burn-in. Plasma is subject to performance
issues at higher altitudes of operation such as fan buzzing
and increased power consumption.
Pico Projector A marketing term to describe a small
hand held projector that can t in your pocket. A pico
projector can be a stand-alone device that connects to a
computer or other video device or a projection module that
is integrated with a phone, portable computer, MP3 player
or other small device.
PIP (Picture-In-Picture). The ability to project a secondary
image (from another source such as a DVD, VCR or PC)
within the main projection image.
Pitch The rotational axis of a projector mount. Taken from
the aviation industry, pitch on a projector refers to the axis
of rotation that would move the image of a projector up and
down on a screen. Roll refers to the rotation around the axis
that will rotate the image on a screen. Yaw refers to the rota-
tion around the axis that will move the image on a screen
left or right.
Pivot Refers to the right and left or horizontal motion of
a at-panel mounting head attached to a articulating or
swing-out arm.
Pixel A small dot which represents a single element of a
display. The more pixels an image has, the more dened the
image will appear to the viewer.
Pixelation If compression by DVD and digital channels
is not performed with care, the image looks rougher and
coarser than it should, with a grainy effect over parts of the
picture.
Plasma Display Panel (PDP) A direct view display
made up of an array of cells, known as pixels, which are
composed of three subpixels, corresponding to the colors
red, green and blue. Gas in the plasma state is used to
react with phosphors in each subpixel to produce colored
light (red, green or blue) from a phosphor in each subpixel.
Plasma displays are thinner than cathode ray tube (CRT)
displays and brighter than liquid crystal displays (LCD).
Most of these heavy and expensive displays have been
replaced by less expensive and much lighter LCD displays.
Plasma Just as solids, liquids and gases are states of
matter, plasma is a state of matter. Specically, plasma is
ionized gas. That is, gas that has been given an electrical
charge by being stripped of electrons. Such ionized gas is
the most abundant observable form of matter in the uni-
verse, being a main ingredient in stars and nebulous. And
as if we’re not already seeing enough of the stuff, it’s also
what goes inside those at panel displays called “plasmas”
that are popping up all around us. Why? Because when you
apply an electromagnetic eld to plasma, it glows, making
for a nice, vibrant TV screen, computer monitor, or digital
signage.
PNG The le-type extension for images in the PNG
(pronounced “ping”) format. PNG is a relatively new and
advanced format, featuring both compression and exten-
sibility.
Power Zoom A zoom lens that is driven by a motor and
controlled from the projector’s control panel and/or remote
control.
Pro:Idiom LG’s Pro:Idiom® system’s high-quality secu-
rity unlocks access to premium content availability to help
assure rapid, broad deployment of HDTV and other high
value digital content. By using this embedded approach,
security is provided and helps eliminate the possibility of
customers tampering with or removing needed compo-
nents.
Progressive Scan A display mode in which all the hori-
zontal lines of an image are displayed at one time in a single
frame, unlike an interlaced scan in which a frame consists
of two separate elds with the rst eld consisting of odd
horizontal lines and the second eld even horizontal lines.
Progressive scan is used by projectors, computer monitors,
HDTV systems, and some digital camcorders. Progres-
sive Scan requires a faster horizontal scan frequency than
interlaced images of the same resolution.
Project Registration Project registration refers to the
process of submitting a bid for a given project. Dealers
benet from partnering with the manufacturer through
special pricing, discounts, and technical support. This al-
lows the dealer to provide more opportunities, build product
expertise and grow protably. Project registration provides
a competitive advantage and can help increase sales and
improve margin opportunities.
Projector Pitch The rotational axis of a projector mount.
Taken from the aviation industry, pitch on a projector refers
to the axis of rotation that would move the image of a
projector up and down on a screen. Roll refers to the rota-
tion around the axis that will rotate the image on a screen.
Yaw refers to the rotation around the axis that will move the
image on a screen left or right.
Projector Roll Taken from the aviation industry, the
roll on a projector refers to the axis of rotation that would
rotate the image of a projector on a screen. Yaw refers to
the rotation around the axis that will move the image on a
screen left or right, while pitch refers to the axis of rotation
that would move the image of a projector up and down on
a screen.
Projector Stacker Allows installation of multiple projec-
tors while permitting maximum ventilation.
Projector A projector is a device that integrates a light
source, an optics system, electronics and display(s) for the
purpose of projecting an image from a computer or video
device onto a wall or screen for large image viewing. These
devices attach to a computer or video device as you would
connect a monitor or television.
Proxy Server A server on a network between client
software and another service that intercepts requests to the
server, forwarding to other servers if necessary.
Q
QAM (Quadrature Amplitude Modulation). A type
of digital modulation technique used to carry
signals in digital cable and cable modems which
usually has a number before it denoting its bit density such
as 64-QAM. Cable is equivalent to 8VSB. A QAM tuner will
allow you to see digital cable channels without a cable box
but only those that are broadcast without restriction. A
CableCARD® will add support for restricted channels.
QXGA A display resolution of 2048 horizontal pixels
by 1536 vertical pixels giving a total display resolution of
3,145,728 pixels. A QXGA display has 4 times the resolution
of an XGA display.
R
RAID (Redundant Array of Independent Disks). A
multi-drive storage facility providing high-perfor-
mance and redundant hardware with protection
against failure.
Rainbow Effect An image anomaly that can be seen
by a small percentage of people when viewing a single
chip DLP™ front or rear projection system. The anomaly
appears as a color breakup at the edge of objects when
the eye transitions rapidly between light and dark areas of
the image. The problem is characteristic of sequential color
systems with low refresh rates.
Rear Screen Projection A presentation system in
which the image is projected through a translucent screen
toward the audience. It involves projecting an image
through a translucent screen material for viewing from the
opposite side, as opposed to front projection.
Refresh Rate The speed at which a display updates its
picture given in Hz.
Rental & Staging The rental and staging industry
typically work with special events, tradeshows, concerts
and other brief productions. These types of events require
products that are modular, portable, exible and strong.
Residential Installations that can range depending
on customer need. These can be a project as small as a
installing a single at-panel, or as large integrating an entire
home theater.
Resolution Measures how clear and detailed an image
is the higher the resolution the better the picture quality.
Resolution is expressed as the number of horizontal and
vertical lines.
Response Time A term associated with LCD technol-
ogy, this is the time an individual pixel takes to turn fully on
then off. There is a rising and falling time which gives the
overall gure.
RF Radio Frequency Interference.
RGB (Red, Green and Blue). A component signal repre-
senting each color separately. Sync signals can be sent on
green or sent separately as a composite signal or dual H / V
signals (Horizontal sync/Vertical sync). Very common signal
for analog computer displays. They are also the primary
colors of light, not to be confused with Cyan, Magenta, and
Yellow, the primary pigments.
RMA The Return Material Authorization, is the process
of returning a product to the manufacturer for repair or
replacement.
PRO AV GLOSSARY
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