METHOD OF MANUFACTURING LIQUID COMPOSITION FOR ORGANIC ELECTROLUMINESCENT ELEMENT

• Main Authors: MAEKAWA TAKENORI, KAKIMOTO HIDENOBU, MIURA AYUKO, KAMIOKA TAKAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 13.05.2021
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

To provide a method of manufacturing a liquid composition for organic electroluminescent element capable of stably exhibiting an excellent luminance life.SOLUTION: A method of manufacturing a liquid composition for organic electroluminescent element comprises: a preparing step for preparing the liquid composition for organic field-effect element which contains containing an organic electroluminescent compound and a specific compound; a relative amount value acquiring step for using a liquid chromatography device comprising an ultraviolet visible light detector to acquire, as a relative amount value, a ratio (B/A) of a peak area value B having a holding time corresponding to a peak of a chemical light-emission chromatogram of the liquid composition for evaluation to an area value A of a peak deriving from the specific compound; a determination step for determining whether or not the liquid composition is acceptable; and a sorting step for sorting compositions determined to be acceptable. In the method, a standard value is a value acquired as a relative amount value of a ratio (B'/A') of the area value B' of a peak of an ultraviolet visible chromatogram of a liquid composition for reference evaluation to an area valve A' of a peak deriving from a specific composition.SELECTED DRAWING: None 【課題】良好な輝度寿命を安定的に発現できる有機電界発光素子用液状組成物の製造方法を提供する。【解決手段】有機電界発光性化合物と、特定の化合物とを含有する有機電界発光素子用液状組成物を調製する調製工程、紫外可視光検出器を備えた液体クロマトグラフ装置を用いて、特定の化合物に由来するピークの面積値Ａに対する、前記評価用液状組成物の化学発光クロマトグラムにおけるピークに対応する保持時間を有するピークの面積値Ｂの比（Ｂ／Ａ）を相対量値として取得する相対量値取得工程、前記液状組成物の良否を判定する判定工程、並びに、良と判定されたものを選別する選別工程、を備え、前記規格値が、前記特定の化合物に由来するピークの面積値Ａ'に対する、前記参照評価用液状組成物の紫外可視光クロマトグラムにおけるピークの面積値Ｂ'の比（Ｂ'／Ａ'）を相対量値として取得した値である、前記有機電界発光素子用液状組成物の製造方法。【選択図】なし