ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE

• Main Authors: JEON SEONG SU, KUM TAE IL, JUNG YOUNG-KWAN, KIM HYUNG JUNE, KIM HYO SEOK
• Format: Patent
• Language: English; Japanese
• Published: 09.07.2015
• Subjects: ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY

PROBLEM TO BE SOLVED: To overcome limitations in increasing the emission efficiency of an organic light emitting diode, and minimize power consumption of an organic light emitting diode display device.SOLUTION: An organic light emitting diode includes: an anode and a cathode separated each other; a first emitting material layer positioned between the anode and the cathode and including a first host material having a first triplet energy; and a hole transporting layer positioned between the first emitting material layer and the anode and including a material having a second triplet energy being larger than the first triplet energy. 【課題】有機発光ダイオードの発光効率増加における限界を克服し、また、有機発光ダイオード表示装置の消費電力を最小化する。【解決手段】互いに離隔する陽極及び陰極と、前記陽極と前記陰極の間に位置し、第１三重項エネルギーを有する第１ホスト物質を含む第１発光物質層と、前記第１発光物質層と前記陽極の間に位置し、前記第１三重項エネルギーより大きい第２三重項エネルギーを有する物質を含む正孔輸送層とを備える有機発光ダイオードを提供する。【選択図】図５