TECHNICAL TERMS DETAILS
- Virtual Channel
In digital channels, a virtual channel is used. A virtual
channel is a function that enables users to watch a channel by selecting a
virtual channel number regardless of the region of the user. Run Auto Channel
Scan for digital broadcasts, tune in to a UHF channel number according to the
region for terrestrial broadcasts, or tune into a channel number allocated by
the cable broadcasting station for a cable TV network, and then select a
displayed virtual channel. For example,
even if you tune into channels UHF 14(MBC),15(KBS1), 16(SBS), 17(KBS2) and
18(EBS) broadcast from Kwanak mountain in Seoul, you can watch the channels
using
virtual channels such as 11-1(MBC), 9-1(KBS1), 6-1(SBS),
7-1(KBS2) and 10-1(EBS) regardless of your region and the actual local channel
number. The virtual channel numbers may be used nationwide, but the virtual
channel numbers may vary depending on the local broadcasting stations.
(Since the digital channel numbers may vary depending on
your region and can be changed by the broadcasting policy, ask your local
broadcasting station or regional cable TV network company about the channel
numbers.) If the virtual channel numbers are saved and the TV set can receive
digital broadcasting, you can watch a digital channel by pressing the DTV+
button and pressing the first two digits of the corresponding virtual channel
number.
- Custom Color Adjustment
Using this function, a user can adjust the color according
to personal preferences (Red, Grass-Color, Sky-Color, Gold Color, Skin-Color,
White, Standard, ustom) without affecting other colors using automatic
selection mode or fine adjustment mode.
Simultaneous Screen
Using this function, a user can view two video signals from
separate video sources on a single screen at the same time. For example, you can watch TV and video
simultaneously.
- Dolby Digital
This is the digital sound standard developed by the Dolby
Laboratory. You can select your preferred digital surround mode after
connecting external speakers.
Digital Broadcasting
Digital Broadcasting is a television broadcasting signal
digitized and transmitted according to the United States' terrestrial digital
broadcast standard, or ATSC.
- Mono
A type of audio interface that transmits the audio signal
through a single channel only. Through
a mono interface, it is hard to experience stereophonic sound and the sound is
played using only one speaker.
- External Input
External Input is a connected video device such as a VCR,
camcorder, DTV receiver, DVD, etc. as a video source.
- Satellite Broadcasting
Satellite Broadcasting transmits programs via satellite so
that a program can be viable in all areas at a high visual and sound quality.
Approximately 100 channels including public broadcast channels are provided. To
view a satellite broadcast, you have to install an additional receiver.
- Wire Broadcasting
Wire Broadcasting refers to movie, entertainment and
educational programs transmitted by a broadcasting station within a hotel or
school.
- Audio Multimix
Audio Multimix provides 2 audio languages when foreign
movie, drama, news, etc. are broadcast. You can select and listen to one of the
supported languages or you can select and listen to both languages
simultaneously.
รจAfter-Image Protection
Using this function, a user can configure the options
necessary for protecting the PDP TV screen.
- Power Saving Mode
This function adjusts the screen brightness according to the
ambient brightness so as to conserve power.
- Component Port
The Component Port transmits a separate luminance signal as
well as the green, blue, and red color signal and provides the best quality of
all video connection types.
- Cable Broadcasting
Cable Broadcasting transmits programs via cable instead of
via the air. To view cable broadcasting, you have to subscribe to your local
cable broadcast service provider and install an additional receiver.
- Tuner
A device that enables the selecting of specific channel
frequencies for TV or radio.
- Panorama Screen
This refers to a screen that corrects the picture distortion
due to a screen size mismatch on the TV.
- Progressive Scan
Progressive scan displays the entire frame in a single sweep
so as to provide clearer and sharper visual quality.
- VESA Plug & Play
This function enables the automatic recognition of devices
when connecting the TV to the computer without additional settings.
- Reception Sensitivity Amplification (LNA)
A signal amplification technique that amplifies a weak
broadcasting signal by applying satellite technology to provide better visual
quality even for users in regions where only a weak broadcasting signal is
available. (LNA: Low Noise Amplifier)
- Sub Woofer
A Sub Woofer is a speaker for ultra bass sound output only
whose frequency is as low as 150Hz. There are two types: an active type which
includes an amplifier, and a passive type, which requires an additional
amplifier.
- Stereo
A type of audio interface that transmits audio signal
through 2 channels. Stereo transmits
audio signals for right and left sound so that you can experience stereophonic
sound, and the sound is played through 2 speakers.
- Partial Color Blind Person Mode
Using this function, a user can adjust the red, green or
blue colors according to the preferences of the partially color-blind person so
that he or she can view the clearest possible picture on the screen.
- Analog Broadcasting
Analog Broadcasting is a television-broadcasting signal
transmitted according to the NTSC standard.
- ANTENNA IN Port
The port connecting the TV aerial via a coaxial cable. It is
generally used for watching public broadcast programs.
- English Caption
A function that displays English captions or text
information included in the broadcast signal or video tape. You can use this
function for your English studies by watching AFKN or CC marked video tapes.
- Video/Audio Ports
You may experience poor visual and audio quality when
watching a video tape on channel 3 or 4 through the antenna cable. You can experience better visual and audio
quality by connecting the TV and VCR through the Video/Audio ports. The video
port is in yellow, and the audio ports are in white and red.
- Wide Screen
Wide Screen refers to a screen that is horizontally longer
than a conventional TV screen. While
the aspect ratio of a normal TV is 4:3, that of a wide screen is 16:9.
- Anynet
Anynet is an AV network system that enables an easy-to-use
AV interface for users by controlling all connected AV devices through the
Anynet menu when the AV devices of Samsung Electronics are connected.
- DVD (Digital Versatile Disc)
DVD is a large capacity storage media that can store
multimedia content such as video, games, audio applications, etc. using MPEG-2
video compression technology on a CD sized disc
- DRC
This is a sound quality enhancement function that automatically
controls audio output so as to prevent sound quality distortion even at loud
volumes and correct the sound to the speakers so that you can listen to the
sound at the original sound quality.
- DVI (Digital Visual Interface) Port
A DVI interface is a standard for high definition television
connectivity. It provides a clear picture on the screen using TMDS which
minimizes video signal loss.
- DVI-D Cable
A type of DVI connector. Using this cable you can only
transmit digital signals.
- DVI-I Cable
A type of DVI connector. Using this cable you can transmit
either digital or analog signals.
- HDMI
This low-voltage power is to supply power to a device that
does not use AC power from a wall outlet directly such as a camcorder. A device
with a 6-pin connector can receive or relay power to another device.
Alternatively, you can use a 6-pin connector without using the two additional
pins.
- PCM
PCM (Pulse Coded Modulation): This refers to an uncompressed
digital signal. Use this for an AV amplifier that does not support 5.1 channels
when connecting the audio output via optical or coaxial cable.
- SRS TruSurround XT
This function provides 5.1 channel surround sound using 2
channel speakers when inputting a stereo audio signal.
- S-VIDEO IN Port
This is called super video. S-Video is a type of video
signal, which has the video luminance, and the color signal separated in order
to provide better visual quality.
VHF/UHF VHF refers
to TV channels 2 to 13, and UHF refers to TV channels 14 to 69.
- Pixels, Resolution
The pixels are the number of small dots that make up the TV
screen. The resolution represents the number of pixels on a screen. For example, if the resolution of a TV is
1024 * 768, it means the width of the screen consists of 1024 pixel columns and
the height of the screen consists of 768 pixel rows. In this case, the total
number of pixels on the screen is 786,432. The more pixels there are, the
higher the visual quality that can be achieved because the picture on the
screen is displayed with more pixels and therefore with more detail.
- Gradation, Color Depth
Gradation describes the number of gradual brightness levels.
Since binary numbers represents all information in a digital system, the
Gradation is determined by the number of bits used to represent the brightness
levels of a pixel on the TV screen. For example, if 8 bits represent a pixel,
the Gradation is 28 or 256. Since a TV uses the three primary colors of light,
R,G and B, the number of possible colors for a pixel is 256 x 256 x 256,
16,777,216, or 16.7 million colors. If 12 bits are used for a pixel, the
gradation is 212 or 4096 for a color. Since three colors R, G and B are used,
4096 x 4096 x 4096 or 68.7 billion colors are supported per pixel. Since 68.7
billion colors are far more than 16.7 million colors, the picture will be
displayed by far more abundant and natural colors using a 12 bit pixel. That
is, since Gradation means the number of brightness levels, color represented by
4096 levels appears more natural than color represented by 256 levels.
- Contrast
The contrast is the ratio of brightness of the brightest
color to the darkest color. The contrast is calculated by dividing the
brightness of the brightest color by the brightness of the darkest color. For
example, if the brightness of the darkest color is 1 and the brightness of the
brightest color is 3000, then the Contrast is 3000/1 or 3000. A higher contrast
means that a dark color is displayed darker and bright color is displayed
brighter so that the screen contrast can be easily distinguished. The contrast
differs from the Gradient, which means the number of brightness levels. Therefore, if someone says that a 5000:1
contrast displays a color by 5000 levels, he is confusing Contrast with
Gradation.
- Brightness
Brightness is the brightness per unit screen area, the unit
for brightness is candela (cd). For example, 1000cd/m2 means the brightness
that is measured when 1000 candles are lit within 1 square meters area.
- Color Reproductivity
Each color displayed on the TV screen is implemented by a
pixel on color coordinates, which have an X and Y axis. For example, when a
pixel on the X oordinate 0.65 and the Y coordinate 0.74 is displayed as a color
and it becomes visible on the TV screen. While the possible color coordinate
area is very wide, the color coordinate area of the signal broadcast from a
broadcast station is smaller than that of possible color coordinates. Moreover,
a TV provides a smaller color coordinate area than that of the signal from the
broadcasting station even though the size of the color coordinate area varies
depending on the TV model. In general, Color Reproductivity
is used as follows: The Color reproductivity of a TV is a certain % of
NTSC. This means the TV displays that
particular % of the color coordinate area of the NTSC signal broadcast by the
broadcasting station. In general, a CRT TV provides the highest functional
color reproductivity.
