OPTICAL WAVELENGTH CONVERSION MEMBER AND LIGHT-EMITTING DEVICE

To provide an optical wavelength conversion member that has an optical wavelength conversion layer containing quantum dots and has excellent folding durability, high emission efficiency retention property and high reliability, and to provide a light-emitting device that includes the wavelength conversion member and a light-emitting element and has excellent folding durability, high emission efficiency retention property and high reliability.SOLUTION: The optical wavelength conversion member is configured to have at least a base material layer, an optical wavelength conversion layer and a protective layer stacked in this order. The optical wavelength conversion layer contains quantum dots, and the protective layer contains an organic substance having oxygen gas barrier property. The light-emitting device includes the above member and a light-emitting element.SELECTED DRAWING: None 【課題】量子ドットを含む光波長変換層を有する、折り曲げ耐性に優れ、且つ、高い発光効率持続性を有する、信頼性の高い光波長変換部材の提供。並びに、当該波長変換部材と発光素子とを備える、折り曲げ耐性に優れ、且つ、高い発光効率持続性を有する、信頼性の高い発光デバイスの提供。【解決手段】上記課題は、少なくとも、基材層、光波長変換層及び保護層が、この順に積層されている構成を備えた光波長変換部材であって、前記光波長変換層が、量子ドットを含み、前記保護層が、酸素ガスバリア性を有する有機物を含む、光波長変換部材、及び、該部材と発光素子とを備える発光デバイスによって解決される。【選択図】なし