Chapter 14 Visual Display Systems

Question 1

What is contrast ratio?

Answer 1

A ratio between the projected
image and the ambient light
condition at the image location
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Question 2

Name 3 advantages of
liquid crystal displays
(LCDs).

Answer 2

1 .More robust in terms of long-
term performance
2.Resistant to image burn-in
3.Ability to re-lamp the LCD
display for greater product
longevity
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Question 3

What is the most common
disadvantage associated
with LCDs?

Answer 3

No true black level, which
adversely affects the color
rendition
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Question 4

What makes LEDs ideal for
outdoor applications even
under daylight conditions?

Answer 4

Their extreme brightness
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Question 5

What is the most common
disadvantage associated
with organic light-emitting
diode (OLED) displays?

Answer 5

The limited lifespan of the
organic materials
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Question 6

Name the 2 general
categories of project
display solutions.

Answer 6

1 .Front projection
2.Rear projection
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Question 7

Which project display
solution is the most
commonly used today?

Answer 7

Front projection
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Question 8

True or False
Typically, a rear projection
space becomes an ER.

Answer 8

True. Typically, the rear projection
space becomes an ER with space
allocated for supporting equipment
racks, installed video cameras, IR
emitters, wireless microphone
antennae, or audio loudspeakers.
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