|
補償膜將顯示 （TN
/ STN / TFT（VA / IPS / OCB ))
液晶各视角产生的相位差做修正
,让液晶分子的双折射性质得到对称性的补偿。功能区分单纯改变相位的相位差膜、色差补偿膜及视角扩大膜。补偿膜能降低液晶显示器暗态时漏光量，在一定视角内大幅提高影像之对比、色度与灰阶反转问题。
Quarter Wave Optical
Light Retarder Base Film
DLC
QW and QWEP Grade Films are
high clarity, chromatic quarter- wave plates made from a
single layer of polymer film. Therefore QW & QWEP Grade
film products have superior light transmission and
dimensional stability. They are more economical than
traditional PVA laminates because QW Grade film can serve
as both a retarder layer as well as a protective base
film. Our QW
& QWEP Grade Film products are easy to handle
and apply in a variety of retarder applications such as
circular polarizers, LCD's, fiber optics, and other
coherent and polarized light applications.
QWEP Grade Films are high performance, with
high heat resistance up to 150 degrees C.
This grade of retarder contains no plasticizers or anti-block additives
so transparency is maximized while haze and light
scattering is minimized. Further this film will not yellow
over time and can withstand high lux and temperature
exposure without shifts in its optical properties.
QW Grade films are an excellent high clarity
general purpose products for use in room temperature
applications.
Our
Quarter-Wave Optical Film can be custom manufactured to
meet specific customer requirements:
e
Manufactured to custom levels of birefringence up to
200nm.
|
Thickness |
OPD |
|
005": |
120nm to 200nm (±
10nm) |
|
Standard Widths: 20+", available up to 42+" |
Custom
manufactured film with additives such as color filter
dyes, pigments, fluorescent dyes, optical brighteners, UV
inhibitors and other additives available.
|
Product
Features:
Very
Uniform Birefringence
50% Thinner Than Most Polymer Light Retarder Plates
A Solid Polymer Film (Not a Composite Lamination)
High Clarity, Low Haze, Excellent Optical
Transmission
Minimal Defect Count
Good Dimensional Stability
Commercially Available
Cost
Effective Alternative to PVA Laminates
|
 |
Optical Light Retarder Base Film
Properties based on .005" Gloss/Gloss Base
Film properties of other gauges and finishes of may vary.
The following technical information and data should be
considered representative or typical only,and not used for
specification purposes.
TYPICAL OPTICAL PROPERTIES
| |
QW Grade |
QWEP
Grade |
|
|
|
Property |
Value |
Values |
Units |
Test
Method |
|
Phase Uniformity: |
<
5 |
<
5 |
% |
|
|
Transparency: |
>90 |
>93 |
ASTM D1476 |
|
Hazy |
1.1 |
<1 |
ASTM D1003 |
|
Gloss
|
137 |
140 |
200 ASTM D523 |
| |
145 |
145 |
600 ASTM D523 |
| |
122 |
115 |
850 ASTM D523 |
|
Refractive Index |
1.485 |
1.485 |
|
ASTM D542 |
TYPICAL PHYSICAL PROPERTIES
| |
QW
Grade |
QWEP
Grade |
|
|
|
Property |
Value |
Values |
Units |
Test
Method |
|
Specific Gravity |
1.31 |
1.31 |
|
|
|
Softening Temp. |
110 |
150 |
°C |
|
|
Linear Heat
Shrinkage
80°C
@ 85% RH for 20 Hrs..
|
1.17 |
0 |
% |
ASTM
D1204-4 |
|
Water Vapor
Permeability |
685 |
685 |
g/m2/day |
|
|
Gas Permeability -
O2 |
1800 |
1800 |
|
|
Yield Strength MD |
65.4 |
65.4 |
Yield/Nmm2 |
ASTM
D882-91 |
|
TD |
61.5 |
61.5 |
|
Tensile Strength |
58.6 |
58.6 |
|
Elongation at
Break |
47.2 |
47.2 |
% |
|
Modulus of
Elasticity MD |
975 |
975 |
Nmm2 |
|
Mullen Bursting
Strength |
72.5
|
72.5
|
PSI |
BS
4768 |
Cellophane film as half wave retarder of
wide spectrum
Multi-twist retarders for broadband polarization
transformation
If you don't find what you're looking for,
Contact Us.
We may have a suitable product that's not listed, or we may be
able to develop a material to fit your specific needs.
Tel : (02)2217-3442 / Fax : (02)2704-4070
|
|
