1. display screens and ergonomics
Done by: ms.Hanan Albarigi

2. How can you measure your display?
Monitor = Screen = Display
How can you measure your display?
:Aspect ratio
the width × the height
Screen size:
Diagonally, form the top left to the bottom right.

3. What is pixel resolution?
The total number of pixels contained in a display.
1 pixel on screen = 1 bit on memory
What are kinds of the display?
1-( OLEDs – Organic Light Emitting Diodes ).
2-( LCD – Liquid Crystal Display ).
3-( CRT – Cathode Ray Tube ).
4-Plasma.
5-video projector .

4. What technology is used by active-matrix LCDs?
( TFT – Thin Film Transistor ).
What are the three advantages of OLED displays?
Consume less energy,
produce brighter colors
flexible (they can be rolled up).

5. Pixel the smallest unit on a display screen or bitmapped image (usually a colored dot).
Video Adapter an expansion card that generates the video single sent to a computer display.
Aspect Ratio the width of the screen in proportion to its height.
Plasma Screen also called gas discharge display.
Resolution the number of pixels contained in a display; horizontally and vertical.
Colour depth the number of pits used to hold a colour pixel; this determines the maximum number of colour that can be displayed.