Скачать или смотреть Video Display Devices In Computer Graphics in HINDI | Display devices in computer graphics in HINDI

IN THIS VIDEO WE WILL LEARN THE OVERVIEW OF COMPUTER GRAPHICS IN HINDI.
I already have made this video in English in-case you want to watch it:    • Video Display Devices In Computer Graphics  


FIRSTLY WE WILL SEE SOME OF THE IMPORTANT TERMS RELATED TO COMPUTER GRAPHICS:
CLASSIFICATIONS OF COMPUTER GRAPHICS:
1. INTERACTIVE/ACTIVE/ONLINE GRAPHICS:
PERSON INVOLVES HIMSELF IN THE GRAPHICS i.e. INTERACTS WITH IT.
E.g.. GAMES,CHATTING,etc.
2. NON INTERACTIVE/PASSIVE/OFFLINE GRAPHICS:
Person is not involved. E.g. Movie,TVs,etc.

APPLICATION OF CG

ENTERTAINMENT
e.g. games, chatting, etc.
2. SIMULATORS
e.g. AutoCAD
3. 3d printing
4. Presentation Graphics
5. Computer Art
6. CAD (COMPUTER AIDED DESIGN)
7. GUI (GRAPHICAL USER INTERFACE)
8. EDUCATION & ICT(INFO & COMMUNICATION TECH)
9. VIRTUAL REALITY
10. Image processing & computer vision

CHARACTERISTICS OF CG
It has to be interactive
It has to be user friendly
Dynamics
Motion dynamics: Deals with how the objects going to move
Update dynamics: Deals with what changes the object is going to undergo
4. Animations



VIDEO DISPLAY DEVICES
CATHODE RAY TUBE
OPERATION OF CRT:The operation of CRT is very simple −
The electron gun emits a beam of electrons (cathode rays).
The electron beam passes through focusing and deflection systems that direct it towards specified positions on the phosphor-coated screen.
When the beam hits the screen, the phosphor emits a small spot of light at each position contacted by the electron beam.
It redraws the picture by directing the electron beam back over the same screen points quickly.
STRUCTURE OF CATHODE RAY TUBE
WHAT IS A PIXEL/PEL?
SMALLEST ADDRESSIBLE SCREEN ELEMENT IS KNOWN AS A PIXEL OR PEL.
RESOLUTION: THE MAX NUMBER OF POINTS THAT CAN BE DISPLAYED WITHOUT OVERLAP IS REFERRED TO AS RESOLUTION.
NUMBER OF POINTS PER CM THAT CAN BE PLOTTED HORIZONTALLY AND VERTICALLY
EXAMPLE 1024X640(HORIZONTAL &VERTICAL)


TYPES OF RESOLUTIONS:
1. IMAGE RESOLUTION(SPACING)
DISTANCE FROM ONE PIXEL TO NEXT PIXEL IS CALLED AS IMAGE RESOLUTION(SPACING)
2. SCREEN RESOLUTION:
NUMBER OF PIXELS IN THE HORIZONTAL & ERTICAL DIRECTIONS.
ASPECT RATIO:
THE RATIO OF VERTICAL POINTS TO THE HORIZONTAL POINTS NECESSARY TO PRODUCE EQUAL LENGTH LINES IN BOTH DIRECTIONS ON THE SCREEN.
2. FRAME BUFFER:
THE MEMORY WHREIN THE PICTURE DEFINITION IS STORED IS KNOWN AS FRAME BUFFER(REFRESH BUFFER). THIS M/M AREA HOLDS THE SET OF INTENSITY VALUES FOR ALL THE SCREEN POINTS.
TYPES OF DISPLAYS:
1. A CRT monitor displays color pictures by using a combination of phosphors that emit different-colored light. By combining the emitted light from the different phosphors, a range of colors can be generated. The two basic techniques for producing color displays with a CRT are the beam-penetration method and the shadow-mask method.
1. BEAM PENETRATION DISPLAY
2. SHADOW MASK DISPLAY
3. DIRECT VIEW STORAGE TUBE
ADVANTAGES AND DISADVANTAGES OF DVST
4. Flat-Panel Displays
TYPES OF FLAT PANEL DISPLAYS
EMISSIVE DISPLAY
NON-EMISSIVE DISPLAY
Liquid crystal display
LIGHT EMITTING DIODE
THANK YOU VERY MUCH GUYS FOR WATCHING THIS VIDEO.
PLEASE SUBSCRIBE TO THIS CHANNEL AND HIT THE LIKE BUTTON. ASK ANY DOUBTS IN COMMENTS SECTION BELOW.
THANK YOU!!!!!!!