公开(公告)号：US20130141680A1

公开(公告)日：2013-06-06

申请号：US13749098

申请日：2013-01-24

Applicant: Industrial Technology Research Institute

Inventor： Hui-Lung KUO ,  Mei-Chih PENG ,  Pin-Chen CHEN ,  Ying-Jui LIN

IPC: B32B37/12

CPC classification number: B32B37/12 ,  G02B5/3016 ,  G02F2001/133633 ,  Y10T156/10

Abstract: The present invention provides an optical film with functions of light collimating, light polarization for brightness enhancement and limiting viewing angle and a method for preparing the same. The optical film includes a plurality of layers of a cholesteric liquid crystal film bound together via an optical adhesive and a quarter-wavelength retardation plate bound with the cholesteric liquid crystal film via the optical adhesive. Therein, at least one layer of the cholesteric liquid crystal film has a polarized separated wavelength range covering the wavelength range of visible light of three primary colors of red, green and blue.

Abstract translation: 本发明提供具有光准直，亮度增强的光偏振和限制视角的功能的光学膜及其制备方法。 光学膜包括通过光学粘合剂结合在一起的胆甾醇型液晶膜的多个层和经由光学粘合剂与胆甾醇型液晶膜结合的四分之一波长延迟板。 其中，至少一层胆甾型液晶膜具有覆盖红，绿，蓝三原色的可见光的波长范围的偏振分离波长范围。