3.1 Compare and contrast display components & attributes

Liquid Crystal Display (LCD)

produce an image on a flat surface using liquid crystals & a backlight

Fluorescent backlight

lamps are used for backlighting

LED Backlight

uses multiple light emitting diodes arranged in a pattern

Twisted Nematic (TN)

• liquid crystals twist light as they come through

• most affordable

• best performance

• poor viewing angles on vertical axis

In-Plane Switching (IPS)

• liquid crystals stay in place and are aligned in parallel with the glass

• better color reproduction & viewing angle on a vertical axis

Vertical Alignment (VA)

• mixture of TN & IPS display

• better color reproduction than a TN

• refresh rate & response time faster than IPS

Organic Light Emitting Diode (OLED)

• used in modern smartphones & TVs

• each pixel produces its own illumination without having a separate backlight

• produces darkest black colors with highest contrast ratios

Mini -LED

• next-gen of LCD tech

• uses 1000s of microscopic LEDs

• deeper black levels, brighter highlights & greater contrast

Resolution

the number of pixels that are being used to display an image on the screen

Pixels Per Inch (PPI)

• measurement of Pixel Density

Refresh Rate

• measured in Hertz

• it is the number of times the display updates

Response Time

the time in milliseconds it takes to change from one color to another

Color Gamut

the range of colors that a device can generate or capture