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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

XBH Chem 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
 

 

 

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