STACKED TRANSPARENT FILM, WINDOW FOR DISPLAY DEVICE, AND DISPLAY DEVICE

• Main Authors: AHN CHANJAE, SONG SUN JIN, JEON HYUNJEONG, JEE SANG-SOO, JEONG BOREUM
• Format: Patent
• Language: English; Japanese
• Published: 26.04.2018
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

PROBLEM TO BE SOLVED: To provide a stacked transparent film improved in optical and mechanical characteristics while having flexibility.SOLUTION: A stacked transparent film includes: a polymer film including at least one of an amide structural unit and an imide structural unit, where the polymer film has a refractive index of 1.65 to 1.75 for light having wavelength of 550 nm and an elastic modulus greater than or equal to 5.5 GPa; and at least one of a first coating layer on one side of the polymer film and a second coating layer on a side opposite the side of the polymer film on which the first coating layer is formed.SELECTED DRAWING: Figure 1 【課題】柔軟性を有し、かつ光学的特性および機械的特性が向上した積層透明フィルムを提供する。【解決手段】アミド構造単位およびイミド構造単位の少なくとも一方を含む高分子を含有し、波長５５０ｎｍの光の屈折率が１．６５〜１．７５であり、かつ弾性率が５．５ＧＰａ以上である高分子フィルムと、前記高分子フィルムの一方の面に配置される第１コーティング層および前記高分子フィルムの前記第１コーティング層が形成される面と反対側の面に配置される第２コーティング層の少なくとも一方を含む積層透明フィルム。【選択図】図１