WorksheetsDisplay Devices Review
Total questions: 15
Worksheet time: 5mins
The very first touchscreens were developed in what decade?
1950s
1960s
1970s
1980s
This touchscreen technology has you pressing two layers together much like a keyboard.
Resistive
Capacitive
Surface acoustic wave
Near field
This touchscreen tech uses the current in your body to complete a circuit and record a touch.
Resistive
Capacitive
Surface acoustic wave
Near field
This type of touchscreen uses a grid of light. When your finger breaks the grid it records a touch.
Capacitive
Resistive
Infrared
Surface Acoustic Wave
This type of touchscreen technology uses sound waves across the surface of the glass. When the waves are disrupted a touch is recorded.
Surface acoustic wave
Capacitive
Resistive
Infrared
Which touchscreen technology supports multi touch gestures and is the most commonly used today?
Capacitive
Resistive
Near field
Surface acoustic wave
This is a flat panel tech that uses a liquid crystal solution sandwiched between two polarizing filters and glass panels.
LED
LCD
Plasma
OLED
In an LCD panel, what do the crystals do in order to achieve desired colors?
Turn to plasma
Straighten and twist
Turn on and off
Brighten and dim
This type of LCD panel has an LCD at each intersection that represents a single pixel.
Passive matrix
Active matrix
Active matrix LCD screens have a(n) ___ at each intersection which controls the light for each pixel.
Anode
Diode
LCD element
Transistor
This type of display tech uses an organic substrate as the semi-conductor material in LCDs.
LCD
CRT
OLED
Plasma
This technology has the blackest blacks due to being able to turn off the diodes to make black.
LCD
LED
OLED
Plasma
In OLED devices of red, green, and blue, this one wears out the earliest.
(a)
This display device uses small cells filled with xenon and neon gases to create color.
Plasma
LCD
LED
OLED
This technology uses and emitter to shoot a stream of electrons at a phosphor covered screen. They are big and bulky and hardly used any more.
Plasma
LCD
CRT
LED
