Reference Infomation; Technical Terms - Samsung 226BW Service Manual

14 Reference Infomation

14-1 Technical Terms

- 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.
- 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 change image frame quantity
displayed on screen for one second.
Actually TFT-LCD panel require 60 pcs of frame
for one second.
so,this technology is needed to convert input
image to 60 pcs regardless input frame quantity.
- Image Scaler
Technology that convert various input resolution to
other 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)
On screen display. customer can control the
screen easily with this.
- Image Lock
This means "Fineness adjustment" in LCD
Monitor, the features are "Fine" and "Coarse"
- FINE
"Fine" adjustment is used to adjust visibility by
control phase difference.
- COARSE
This is a adjustment by tuning with Video colck
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.
- 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.
- 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 can make it Plug and Play between PC and
Monitor.
- EDID
Extended Display Identification Data PC can
recognize the monitor information as Product data,
Product name,Display mode,Serial number and
Signal source,etc through DDC Line communicating
with PC and Monitor.
14 Reference Infomation
14-1