POLYMER LIGHT-EMITTING ELEMENT

• Main Authors: YAMAUCHI SHOGO, NAITO KOJI, MATSUSUE TETSUYUKI, NISHIMURA SEIKI
• Format: Patent
• Language: English; Japanese
• Published: 21.05.2015
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; 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

PROBLEM TO BE SOLVED: To provide a polymer light-emitting element in which the luminance of emission is stable with time.SOLUTION: A polymer light-emitting element comprises: a cathode; an anode; a light-emitting layer including a first polymer compound provided between the cathode and the anode; and a first functional layer and a second functional layer which are provided between the light-emitting layer and the anode. The first functional layer includes a transition metal oxide. The second functional layer includes a second polymer compound or a polymer compound formed by crosslinking the second polymer compound. The second polymer compound is a polymer compound which includes 51 mol% or more of arylamine-based constitutional units to the total of mole numbers of all of constitutional units. 【課題】発光輝度が経時的に安定した高分子発光素子を提供すること。【解決手段】陰極と、陽極と、該陰極と該陽極との間に設けられた第１の高分子化合物を含む発光層と、該発光層と該陽極との間に設けられた第１の機能層および第２の機能層を有し、該第１の機能層が遷移金属の酸化物を含み、該第２の機能層が、第２の高分子化合物、または第２の高分子化合物を架橋させて形成した高分子化合物を含み、該第２の高分子化合物が、アリールアミン系構成単位を全構成単位の合計に対して５１モル％以上含む高分子化合物である、高分子発光素子。【選択図】なし