学会発表

基本情報

氏名 高頭 孝毅
氏名(カナ) タカトウ コウキ
氏名(英語) TAKATOH Kohki

発表題目

Three Dimensional Birefringence Control Using Nanoparticles for Uniaxially Oriented Films

代表発表者名

Kohki Takatoh

共同発表者名

 

学会・会議名

Nano Science & Technology-2017

発表形態

口頭発表(招待・特別)

発表開始年月

2017/10/25

 

発表終了年月

2017/10/25

概要

To improve the LCD picture quality from oblique directions, two optical compensation films (retardation films) have been applied to LCD panels. However, nowadays, the optical compensation using only one film is required to realize thin LCD panels. For this purpose, both in-plane and out-of-plane birefringence (3-dimensional birefringence) must be controlled. In this paper, a method for achieving three dimensional birefringence control of uniaxial films will be presented. In uniaxial films, in-plane and out-of-plane birefringence cannot be controlled independently. However, it was found that when adding plate-shaped smectite nanoparticles to uniaxial films, the value of the out-of-plane birefringence increased more than expected values. Using these results, uniaxial films with no out-of-plane birefringence and negative in-plane birefringence can be formed by adding smectite nanoparticles to polymer films with negative in-plane birefringences. By these methods, the three dimensional birefringence of uniaxial polymer can be controlled and the possibility of the uniaxial films could be drastically extended.