Display Types

LCD

Liquid Crystal Display

• Lightweight

• Low power

• Inexpensive

Requires separate backlight

LCD types

• TN (Twisted nematic)

• IPS (In plane switching)

• VA (vertical alignment)

Twisted Nematic (TN)

• Fast response times

• Low color quality

• Low viewing angles

In Plane Switching (IPS)

• High color quality

• Wide viewing angles

• Slow response times

Vertical Alignment (VA)

• High contrast ratios

• Good viewing angles

• Good color quality

OLED (Organic light emitting diode)

Organic compound emits light when receiving power

• Lightweight, bendable, ultra-slim screens

• Works without backlight

• Exceptional contrast ratio and black levels

Mini LED

• Backlight system w/ smaller, more densely packed LEDs

• Offer excellent contrast bc of refined backlight control

• Achieve high peak brightness

Touchscreen

Merges laptop and tablet input

Digitizer

Converts touches to digital form

Inverter

• Converts DC to AC power

• Supply voltage to backlights in older LCD panels

• Essential for operating AC-powered devices from DC sources

Pixel density

Number of individual pixels packed into a given area of the screen

Refresh rate

Number of times the screen updates the image per second

Screen resolution

Total number of pixels displayed on the screen

Color gamut

Range of colors a display can reproduce