公开(公告)号：US20150338698A1

公开(公告)日：2015-11-26

申请号：US14650481

申请日：2013-12-06

Applicant: TOMOEGAWA CO., LTD.

Inventor： Masahide SUGIYAMA ,  Hiroto KATAGIRI ,  Yusuke TAKECHI ,  Hiroyuki ABE

IPC: G02F1/1335 ,  G02B5/02

CPC classification number: G02B5/0263 ,  G02B5/0242 ,  G02B5/0257 ,  G02B5/0278 ,  G02F1/133504 ,  G02F1/133528 ,  G02F1/133606 ,  G02F2001/133507 ,  G02F2202/023

Abstract: Provided is a display apparatus which has a sufficient luminance even when viewed at a large viewing angle, and which can overcome a problem of color change. The display apparatus is a display apparatus including a display device showing a color change in accordance with viewer's viewing angle, and an anisotropic optical film having a diffusing property changed in accordance with the incident angle of light radiated thereinto. The anisotropic optical film has at least one scattering central axis, and an angle made between the scattering central axis and a direction along which the display device shows a minimum color change is from 20 to 65°, or −20 to −65°.

Abstract translation: 提供即使在大视角观看时也具有足够的亮度的显示装置，并且能够克服颜色变化的问题。 显示装置是包括根据观察者的视角显示颜色变化的显示装置的显示装置和具有根据照射到其中的光的入射角度而改变的漫射特性的各向异性光学膜。 各向异性光学膜具有至少一个散射中心轴，并且在散射中心轴与显示装置显示最小颜色变化的方向之间形成的角度为20°至65°或-20°至-65°。