Graphic design

1. COMPUTER
GRAPHICS

2. VIDEO
DISPLAY
GRAPHICS
WHAT IS VDG ?
ANS
VIDEO DISPLAY GRAPHICS.
The display device is an output device used to
represent the information in the form of images (visual
form). Display systems are mostly called a video
monitor or Video display unit (VDU).
Display devices are designed to model, display, view, o
r display information. The purpose of display
technology is to simplify information sharing.
TYPES
Different types of video display devices
in computer graphics are –
1.Electronic Paper Displays (E-paper)
2.Head-Mounted Displays (HMDs)
3.Touchscreen Displays
4.Direct View Storage Tubes
5.Cathode Ray Tube (CRT) Monitors
6.Liquid Crystal Displays (LCDs)
7.Plasma Display
8.3D Display
9.Color CRT Monitor

4. CATHODE RAY TUBE
CRT stands for Cathode Ray
Tube. CRT is a
technology used in
traditional computer
monitors and
televisions.
The image on CRT
display is created by
firing electrons from
the back of the tube
of phosphorus located
towards the front of the
screen.

6. MAIN PARTS OF CATHODE RAY TUBE
CONNECTOR PINS
BASE
ELECTRON GUN
FOCUSING SYSTEM
DEFLECTION SYSTEM
PHROPHOR
COATED
SYSTEM/LAYER
PHOSOHOR COATED
SYSTEM / LAYER

7. CATHODE RAY TUBE

8. FOCUSING SYSTEM
It is used to create a clear picture
by focusing the electrons into a
narrow beam.
As light beam can be
focused varying the
focal length of the
system, the electron
beam also can be
focused on to the
screen, to offer a fine
spot of illumination.

9. DEFLECTION SYSTEM
DEPERSSION SYSTEM
‡ VERTICAL DEPERSSION
‡ HORIZONTAL DEPERSSION

11. THIS IS THE WHOLE WORKING OF CRT
(CATHODE RAY TUBE)
BUT NOW WE USE LCD-FLUORESCENT
AND LCD-LED

12. BY
DIKSHA SHARMA (1102)
AND
RIYA SHARMA (1104)