Samsung VG-PRSP120S/ZA The Premiere 120" Rollable Screen (2022) - Manual (Page 13)

12
For the black spot defect which can be
measured in appearance, if it can not
be found by visual inspection, the prod-
uct is normal.
For the appearance of specific measur-
able white spot defects, if visual inspec-
tion can not be found, then the product is
normal.
f the visible dirt is within the allowable
range of defects, the product is normal.
For the faint linear printing trace, if within
the allowable range of defects, the prod-
uct is normal.
For the inks caused by uneven printing
traces, if within the allowable range of
defects, the product is normal.
(1).The white screen is listed as the quality standard because it is not only the reflection surface of the projector image (the
black surface is observed from the upper and lower direction, and the white surface is observed from the bottom direction),
but also the main function surface of the viewing image, so the white screen is listed as the quality standard. It should be
noted that if the white screen surface does not exceed the quality specification, it will be regarded as meeting the factory
qualification standard.
(2).Different from the white screen, the black screen is used as a functional surface to absorb indoor ambient light. In view
of the fact that there is no direct correlation between the black screen surface and the image viewing quality, its quality
specifications are quite different from that of the white surface. It should be noted that the slight black marks on the black
screen surface are inevitable appearance phenomena in the production process of industrial products, which meet the
factory qualification standard.
Conclusion: it should be noted that the slight black marks and white spots on the black screen surface of the anti light
projection screen products are normal product appearance phenomena, which will never affect the image viewing quality.
Please use it at ease.