FILM CONTAINING POLYIMIDE OR POLY(AMIDE-IMIDE) COPOLYMER, DISPLAY DEVICE INCLUDING THAT FILM, AND METHOD FOR PREPARING THAT FILM

• Main Authors: AHN CHANJAE, SONG SUN JIN, JO A RA, JANG WON-SEOK, JEONG BOREUM, CHOI SUNGWON
• Format: Patent
• Language: English; Japanese
• Published: 10.01.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

To provide: a film containing a polyimide or poly(amide-imide) copolymer having reduced unevenness present on its surface; a display device including that film; and a method for preparing that film.SOLUTION: A film comprises a polyimide or poly(amide-imide) copolymer, where the film has an amplitude of a surface roughness curve of 270 nm or less.SELECTED DRAWING: Figure 1 【課題】表面に存在するムラが減少したポリイミドまたはポリ（アミド−イミド）コポリマーを含むフィルム、該フィルムを含む表示装置、および該フィルムの製造方法に関する。【解決手段】表面粗さ曲線の振幅が２７０ｎｍ以下であり、ポリイミドまたはポリ（アミド−イミド）コポリマーを含む、フィルム。【選択図】図１