（1）Product
features
produced in 1000 grade dust-free clean workshop;This product with the imported optical base material can effectively prevent the screen scratches by surface Scratch-resistant treatment, with a pencil hardness up to 3H;joint won't produce bubbles and removed without residual;High light transmittance, high rigidity, high heat resistance, high cleanliness, high pressure paste.
（2）Product usage
This product can effectively block the damage of human eye retina
from the mobile terminals such as tablet PC and smart phones which can generate
high-frequency, high-energy blue light, and then the effective protection of
human eye vision.
（3）Product
main technical parameters
|
item
|
unit
|
specification
|
|
full light transmittance of
the used layer
|
%
|
≥70
|
|
haze of
the used layer
|
%
|
≤5
|
|
Blue light transmittance
|
%
|
400nm：≤10%；350 nm：≤5%
|
|
Surface hardness of the used layer
|
H
|
≥2
|
