14 Reference Infomation
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.
During progressing ADC, Device makes clock syn- chronizing HSYNC with Video clock
Device that supply Power to LCD panel lamp. this device gernerate about 1,500~2,000V.
AC Adapter
Device that converts AC(90V~240V) to DC(+12V or 14V)
SMPS(Switching Mode Power Supply)
This means "Fineness adjustment " in LCD Monitor, the features are "Fine" and "Coarse"
"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 inde- pendent. this interface is primarily forcused at pro- viding a connection between a computer and
its display device.
Switching Mode Power supply. This design tech- nology is used to step up/down the input power by switching on/off
-FRC(Frame Rate Controller)
Technology that change image frame quantity dis- played on screen for one second.
Actually
so,this technology is needed to convert input image to 60 pcs regardless input frame quantity.
Technology that convert various input resolution to other resolution.(ex. 640* 480 to 1024*768)
a kind of transmission method for Digital.It can be used from Main PBA to Panel.
(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
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.
Extended Display Identification Data PC can rec- ognize the monitor information as Product data, Product name,Display mode,Serial number and Signal source,etc through DDC Line communicat- ing with PC and Monitor.