POLARIZER, METHOD OF MANUFACTURING THE SAME, AND OPTICAL LAMINATE COMPRISING THE SAME

• Main Authors: TAKADA KATSUNORI, FUCHITA TAKEHITO, GOTO SHUSAKU, KITAMURA YOSHIAKI
• Format: Patent
• Language: English; Japanese
• Published: 28.10.2021
• 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

To provide a polarizer with neutralized hue.SOLUTION: A polarizer of the present invention is characterized in that a transmittance parameter represented by a formula (1) below is 0.8 or grater, and a hue parameter represented by a formula (2) below is 5 or less. In the formula (1), T420 and T550 respectively represent a parallel transmittance at a wavelength of 420 nm and a parallel transmittance at a wavelength of 550 nm. In the formula (2), a represents "a" parallel hue a value and "b" represents a parallel hue b value.SELECTED DRAWING: Figure 2 【課題】色相がニュートラル化された偏光子を提供すること。【解決手段】本発明の偏光子は、式（１）で表される透過率パラメーターが０．８以上であり、かつ、式（２）が５以下である：【数１】（式（１）中、Ｔ４２０は波長４２０ｎｍにおける平行透過率、Ｔ５５０は波長５５０ｎｍにおける平行透過率をそれぞれ表す）【数２】（式（２）中、ａは平行色相ａ値、ｂは平行色相ｂ値をそれぞれ表す）。【選択図】図２