Open AccessAnalysis and fabrication of a prism film with roll-to-roll fabrication process
Author(s) -
Min-Wen Wang,
Chih-Chin Tseng
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.004718
Subject(s) - prism , materials science , optics , refractive index , fabrication , substrate (aquarium) , brightness , roll to roll processing , optoelectronics , composite material , medicine , oceanography , physics , alternative medicine , pathology , geology
A prism-based brightness enhancement film (BEF), has been investigated through computer-aided optical analysis and experiments in this study. The prism film was fabricated on a 100 microm thick PET film substrate using roll-to-roll (R2R) process with UV curable resins of different refractive indices. The results from both optical analysis and experiments showed that resins with higher refractive indices have better on-axis luminous gain. The prism structures fabricated on the substrate achieved a replication rate of 97.54% in this study. Compared with the 3M BEF, the prism films developed in this study are improved in on-axis luminous gains when the refractive index of the resin is higher than 1.53.