VIEWING ANGLE EXPANSION FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE

• Main Author: NISHIOKA HIROYA
• Format: Patent
• Language: Chinese; English
• Published: 19.07.2019
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

Provided is a viewing angle expansion film for expanding the viewing angle, wherein the viewing angle expansion film is equipped with one or more resin layers among which one or more of the layers isa hole-containing layer equipped with multiple hole-containing sections which are substantially parallel to each other. The hole-containing sections contain holes, and the refractive index of the hole-containing layer is 1.53 or less. Also provided are a polarizing plate and a liquid crystal display device having this viewing angle expansion film. 本发明提供一种视角扩大膜，以及具有其的偏振片和液晶显示装置，所述视角扩大膜用于扩大视角，具有1层以上的树脂层且其中的1层以上为具有多个彼此大致平行的含孔部的含孔层，所述含孔部含有孔，所述含孔层的折射率为1.53以下。