POLYIMIDE-BASED FILM AND FLEXIBLE DISPLAY PANEL INCLUDING THE SAME

To provide: a polyimide-based film in which a resin density is changed in a film thickness direction to impart a difference in chemical properties and surface properties on both surfaces of the film; and a flexible display panel including the same.SOLUTION: A polyimide-based film having different su...

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Bibliographische Detailangaben
Hauptverfasser:	LEE SUKCHIN, PARK JIN SU, SONG HYUNJOO, PARK MIN SANG
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADVERTISING AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION GENERAL PROCESSES OF COMPOUNDING LABELS OR NAME-PLATES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS SEALS SIGNS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	To provide: a polyimide-based film in which a resin density is changed in a film thickness direction to impart a difference in chemical properties and surface properties on both surfaces of the film; and a flexible display panel including the same.SOLUTION: A polyimide-based film having different surface properties is provided. When the strength of one surface having a higher strength of both surfaces is 100%, the strength of the other surface is 40 to 80% of the strength of the one surface, the strength being quantified by the ratio of the aromatic ring peak intensity measured by Raman spectroscopic analysis.SELECTED DRAWING: None 【課題】フィルムの厚さ方向に樹脂密度を変化させて、フィルムの両表面の化学的特性および表面特性の差を付与したポリイミド系フィルム、およびこれを含むフレキシブルディスプレイパネルを提供する。【解決手段】ラマン分光分析により測定された芳香族基のピーク強度（Ａｒｏｍａｔｉｃｒｉｎｇｐｅａｋｉｎｔｅｎｓｉｔｙ）の比で定量化し、両面の強度のうちより高い強度を有する一面の強度を１００％にしたときに、他面の強度が前記一面の強度の４０〜８０％である、相違する表面特性を有する、ポリイミド系フィルムとする。【選択図】なし