TECHNICAL TERMS - USED AS ABBREVIATION IN TV & DISPLAY FIELD
TFT-LCD: (Thin film Transistor Liquid Crystal
Display)
ADC(Analog
to Digital Converter): This is a
circuit that converts from analog signal to digital signals.
PLL(Phase
Locked Loop): During
progressing ADC, Device makes clock synchronizing HSYNC with Video clock.
Inverter: Device that supplies Power to LCD panel
lamp. This device generates about 1,500~2,000V.
AC
Adapter: Device that converts AC(90V~240V) to
DC(+12V or 14V)
SMPS(Switching
Mode Power Supply): Switching
Mode Power supply. This design technology is used to step up/down the input
power by switching on/off.
FRC(Frame
Rate Controller): Technology
that changes the number of frames displayed on screen per second. TFT-LCD panel requires 60 frames per
second. This technology is needed to
convert input image to 60 frames per second regardless input frame quantity.
Image
Scaler: Technology that converts an input
resolution to another resolution.(ex. 640* 480 to 1024*768).
Auto
Configuration(Auto adjustment): This is an
algorithm to adjust monitor to optimum condition by pushing one key.
OSD(On
Screen Display): Customers
can easily control the screen settings using the OSD.
FINE: The "Fine" adjustment is used to
adjust visibility by controlling phase difference.
COARSE: This adjustment adjusts the display by tuning
Video clock and PLL clock.
DVI
(Digital Visual Interface): This
provides a high speed digital connection for visual data types that is display
technology independent. This interface
is primarily forcused at providing a connection between a computer and its
display device.
L.V.D.S.(Low
Voltage Differential Signaling): A kind of
transmission method for Digital. It can be used from Main PBA to Panel.
T.M.D.S: (Transition minimized Differential
Signaling): a kind of
transmission method for Digital. It can
be used from Video card to Main PBA.
DDC(Display
data channel): It is a
communication method between Host Computer and related equipment. It enables Plug and Play between PC and
Monitor.
EDID: Extended Display Identification Data PC can
recognize monitor information such as Product data, Product name,Display
mode,Serial number and Signal source, etc Data is recognised via DDC Line
linking PC and Monitor.
Dot
Pitch: The image on a monitor is composed of
red, green and blue dots. The closer the dots, the higher the resolution. The
distance between two dots of the same color is called the 'Dot Pitch'. Unit: mm.
Vertical
Frequency: The screen
must be redrawn several times per second in order to create and display an
image for the user. The frequency of
this repetition per second is called Vertical Frequency or Refresh Rate. Unit:
Hz. Example: If the same light repeats
itself 60 times per second, this is regarded as 60 Hz.
Horizontal
Frequency : The time to
scan one line connecting the right edge to the left edge of the screen
horizontally is called Horizontal Cycle. The inverse number of the Horizontal
Cycle is called Horizontal Frequency.
Unit: kHz.
Interlace
and Non-Interlace Methods: Showing the
horizontal lines of the screen from the top to the bottom in order is called
the Non-Interlace method while showing odd lines and then even lines in turn is
called the Interlace method. The Non-Interlace method is used for the majority
of monitors to ensure a clear image. The Interlace method is the same as that
used in TVs.
Plug
& Play: This is a
function that provides the best quality screen for the user by allowing the
computer and the monitor to exchange information automatically. This monitor follows the international
standard VESA DDC for the Plug & Play function.
Resolution: The number of horizontal and vertical dots
used to compose the screen image is called 'resolution'. This number shows the accuracy of the
display. High resolution is good for
performing multiple tasks as more image information can be shown on the screen.
