visual display units - monitors
DESCRIPTION
A presentation on Visual display units(Monitors) along with factors that determines a monitor, types of monitor, and a brief evolution of colour systems in the industryTRANSCRIPT
VISUALDISPLAYUNITDefinition:Avisualdisplayunitisapieceofelectricalequipmentwhichdisplaysimages generatedbydevicessuchascomputers,withoutproducingapermanentrecord.The monitorcomprisesthedisplaydevice,circuitry,andanenclosure.
AmrithKrishna,
S4,CSEA,FISAT
WorkingofabasicMonitor
Afocusedbeamofelectronsfromelectrongunstrikethefluorescentscreen Shadesofimageisformedsectionbysectioncausingimagetobeformed.
ThepositionofbeamcorrespondstoXandYcoordinatepositionandIntensitybyZaxis Control.
Thesmallestaddressiblespotonscreenispixel
TypesofMonitors
CRTCathodeRayTube LCDTFT Plasma FDUFlexibleDisplayUnits TouchScreenMonitors
HowcanYoumeasureMonitor?
AspectRatio
ScreenSize
Colours
HowcanYoumeasureMonitor?
Width:Height 4:3normal 16:9DVDFormat
AspectRatio
HowcanYoumeasureMonitor?
Measuredininches Measuredfromonecornertotheother diagonallyoppositetoit
ScreenSize
HowcanYoumeasureMonitor?
HowcanYoumeasureMonitor?
AbilityofmonitortodisplayColourrange. Alsodependsonvideocard
Colours
HowcanYoumeasureMonitor?Monochrome
Colours
HowcanYoumeasureMonitor?ColorGraphicsAdapter(CGA)
Colours
16colours
HowcanYoumeasureMonitor?EnhancedGraphicAdapter
Colours
16colours
ThankYou