Multimedia - Displays

Question 1

List the 3 types of monitor Displays

Answer 1

1. Cathode Ray Tube (CRT)
2. Liquid Crystal Diode (LCD)
3. Light Emitting Diode (LED)

Question 2

Describe the Characteristics of CRT - Cathode Ray Tube Monitors

Answer 2

• Electroguns causes electrons to collide with the phosphorescent screen and makes the dots glow to create an image
• Electroguns are glass shell vacuum tubes
• Monintor doesn’t worsen with age
• Cheap
• Quick response time

Question 3

Describe Characteristics of LCD - Liquid Crystal Diode

Answer 3

• More modern form of CRT
• Emits electrons which light up the fluorescent coated monitor screen
• Fluorescent panel determines how many electrons pass through, this creates the shapes of objects
• Smaller space, less energy, affordable

Question 4

Describe Characteristics of LED - Light Emitting Diode

Answer 4

• Improved LCD, created to eliminate LCD problems
• uses light emitting diode instead of cathode ray
• increases sharpness of the image
• high quality images with vibrant colours
• less energy consumption
• less eye strain

Question 5

Define Resolution

Answer 5

The number of pixels contained on a monitor

• high resolution = sharper image
• low resolution will look better on a smaller scale

Common Resolutions: 1920 x 1080 || 1280x720 || 3840x2160