(*English translation)
Q. Is it failure although there are a point which is not turned on on
the liquid crystal screen of "PSP" and an always turned-on point?
A. Although the liquid crystal screen is made with the technology in
which the degree of precision is very high and there is 99.99%
or more of effective pixel, a pixel chip (black point) may appear
in about 0.01% of probability, or red, blue, and a green point
may not disappear. Moreover, neither is failure although a screen
display may become unusual for several seconds when a power
supply is shut off.