Display Solutions

 
 

 

 

Prism Films
The Prism Film Series is a line of light collimating films that enhance display brightness.

PF (prism film) produces a light collimating effect by refracting light within a designed viewing cone, up to 35° off the perpendicular, toward the viewer. Light outside this viewing cone is reflected back into the backlight unit and recycled until it exits at the proper angle.

EDF (enhanced diffusion film) employs the same principles of PF on a diffuse substrate, combining collimation and diffusion into one film. EDF can be used as a high gain bottom diffuser or even a replacement of bottom diffuser + prism film.
Prism Film, contrast, viewing angle, light control
|
|
industry standard
PF

HOW IT WORKS

Fusion Optix Prism Film are made up of a prismatic structure coated on a polyester substrate.

When light moves between a prism and air, it bends based on the difference in the index of refraction (Snell’s law.) If light hits the prism with an angle near normal – total internal reflection (TIR) can occur- and light will be recycled into the backlight unit.

If the light hits the prismatic structure at a larger angle, it may exit the prism bend due to the change in the index of refraction and re-enter the film when it meets the next prism structure.

Most of the light (92+%) exits the film with the total effect of a unidirectional lensing effect increasing the brightness at the desired viewing angle.

 Double Reflection, Refractions, Angle Control, PET, substrateGain distribution
     
  © 2003-08 FUSION OPTIX, INC. All Rights Reserved
Lighting Solutions | Display Solutions | Services | Capabilities | Technology | Resource Center
Disclaimer | Privacy Policy | Terms of Use |Sitemap