Glossary-85
Invar-Shadow Mask-A special type of shadow mask that is made out of Invar,
an alloy that is able to withstand high temperature generated by the electron
beam. The Invar shadow mask allows the CRT to generate a brighter imag e than
the conventional shadow mask. (See Shadow Mask). An Advanced Invader
Shadow Mask improves brightness by 40% over the standard.
J
Jitter-See Swim.
K
k-Small letter k stands for Kilo, Greek for 1,000, e.g. kg, kHz.
Keystone-A type of distortion in which the screen image is smaller at one side
of the screen than at the opposite side.
L
LCD-Liquid Crystal Display (LCD) monitors form screen images using liquid
crystals activated by electronic fields. LCD monitors are flat an d thin,
producing smooth, crisp images with less distortion. Commonly used in
notebook computers.
Linearity-The tendency for changes in an image to be constant. Non-linearity
causes images to be more distort ed in one area of the screen th an in another.
This is sometimes caused by poor voltage regulation in the monitor’s
electronics.
Low Emission-A characteristic of a monitor that has special shielding to lower
the emission of ELF (extremely low frequency) and VLF (very low frequency).
It is usually referred to as a government safety standard, e.g. MPRII.
Low Radiation-See Low Emission.
M
M-Upper case M stands for Mega, Greek for 1 million, e.g. MHz.
Microprocessor Based Monitor-This type of monitor normally has more
flexibility in accepting input signals and more adjustment functions. It also
contains internal memory to save screen image information (size, position,
signal timings, etc.).
Misconvergence-The inability of the monitor to correctly align the red, green
and blue components of an image on the screen (see primary color).
Misconvergence is often visible as fringes of color at the edge of the screen or
color around text or graphics where it should be white.
Moiré-A wavy distortion pattern caused by the interference between contrast,
brightness and other characteristics of the input signal.