POLARIZING FILM CONTAINING WATER-SOLUBLE NAPHTHALIMIDE COMPOUND OR SALT THEREOF, POLARIZED LIGHT EMITTING FILM, POLARIZED LIGHT EMITTING PLATE, AND DISPLAY DEVICE

• Main Authors: MORITA RYOTARO, YOKOYAMA YUI, FUJIWARA DAICHI
• Format: Patent
• Language: English; Japanese
• Published: 28.08.2023
• Subjects: ADHESIVES; CHEMISTRY; 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; DYES; FREQUENCY-CHANGING; LAKES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

To provide a polarized light emitting film which offers high transmittance in the visible light region and high durability in harsh environments, and to provide a polarized light emitting plate and a display device.SOLUTION: Provided herein is a polarized light emitting film containing a water-soluble naphthalimide compound represented by formula (1) below or a salt thereof. (In formula (1), A represents a naphthalimide skeleton that may have a substituent, X represents a sulfo group or carboxy group, and n represents an integer of 1 to 3.)SELECTED DRAWING: None 【課題】可視光領域で高い透過率を有し、且つ過酷な環境下で高い耐久性を有する、偏光発光膜、偏光発光板及び表示装置を提供する。【解決手段】下記式（１）で表される水溶性ナフタルイミド系化合物又はその塩を含有する、偏光発光膜。TIFF2023119333000026.tif20134（式（１）中、Ａは置換基を有してもよいナフタルイミド骨格を表し、Ｘはスルホ基又はカルボキシ基を表し、ｎは１～３の整数を表す。）【選択図】無し