COLOR TELEVISION DISPLAY TUBES
The color
television picture tube screen is coated with three different phosphors, one
for each of the chosen red, green and blue primaries.
The three
phosphors are physically separate from one another and each is energized by an
electron beam of intensity that is proportional to the respective color voltage
reproduced in the television receiver.
The
object is to produce three coincident raster’s with produce the red, green and
blue contents of the transmitted picture.
While
seeing from a normal viewing distance the eye integrates the three color
information to convey the sensation of the hue at each part of the picture.
Based on the gun configuration and the manner in which phosphors are arranged
on the screen, three different types of color picture tubes have been
developed.
These
are:
Delta-gun
color picture tube
Guns-in-line
or Precision-in-line (P-I-L) color picture tube.
Single
sun or Trinitron Color picture tube.
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