Module 1 Prepared by Elizabeth Isaac DCS, RSET. Flat-Panel Display 1. Flat-Panel displays are thinner. 2. Its weight is less. 3. Need less power compared.

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Presentation transcript:

Module 1 Prepared by Elizabeth Isaac DCS, RSET

Flat-Panel Display 1. Flat-Panel displays are thinner. 2. Its weight is less. 3. Need less power compared to a CRT. 4. Do not emit radiation.

Flat-Panel Display Emissive display – Plasma panels – Thin-film electroluminescent displays – LED Nonemissive displays – LCD

Plasma panels Gas-discharge displays

Plasma panels

Thin-film electroluminescent display

LED A matrix of diodes is arranged to form the pixel positions Picture definition is stored in a refresh buffer

LCD Liquid –Crystal displays

graphical input & output devices graphical input device Keyboards Mouse Trackball and Spaceball Joysticks Data Glove Digitizers Image scanners

graphical input device Touch panels Light pens Voice systems

graphical input device Keyboards Event drive device Text entry

Mouse Types – Mechanical – Optical – Wireless Features – Palm-sized – 1 or 2 buttons – Wheel Position a pointer / cursor on the screen Controls drawing instruments in graphics applications Communicate commands to a program

graphical input device Z mouse

graphical input device Trackball

Space ball

graphical input device Joysticks

graphical input device-data glove

graphical input device

graphical input device-digitizer A device for drawing, painting or interactively selecting the coordinate positions Graphics Tablet or data tablet inputs a 2d coordinates by activating a hand cursor or stylus

graphical input device-digitizer

graphical input device-image scanners

Touch panels Electrical touch panel Acoustical touch panel

Light pens Pencil shaped devices are used to select screen positions by detecting the light coming from points on the screen Voice Systems

graphical output devices CRT Printers plotters

Hardcopy Output Devices Electrostatic plotters Ink jet plotters Thermal plotters Dye sublimation printers Pen and ink plotters Laser printers Color film camera

Ink jet plotters Continuous flow Drop-on-demand

Thermal plotters

Pen and ink plotters flat-bed Drum Pinch roller

Pen and ink plotters

Physical Interactive Devices Tablets Light pens Joysticks Mouse Control dials Function switches or buttons Data gloves

Physical Interactive Devices Touch screen keyboard

Data generation devices Convert data from hardcopy to digital form 1.Scanners 2.Three dimensional Digitizers 3.Motion Capture

Scanners

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