LIGHT EMISSION ELEMENT AND METHOD OF MANUFACTURING THE SAME, AND DISPLAY DEVICE AND LIGHTING DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a light emission element and a method of manufacturing the same which can realize a high luminous efficiency with easy patterning. SOLUTION: This light emission element 10 comprises an anode 2 formed on a substrate 1, a cathode 4 disposed oppositely to the anode 2, and a luminous region 3 disposed between the anode 2 and the cathode 4. The luminous region 3 contains polymer 3A, luminescent molecules 3G contributing to the light emission, and a charge carrying material 3F. There is a concentration distribution of the luminescent molecules 3G and the charge carrying material 3F in the thickness direction (from the anode 2 toward the cathode 4) of the luminous region 3. That is, in the luminous region 3, the concentration of the luminescent molecules 3G and the charge carrying material 3F nearer to the cathode 4 is higher and the concentration nearer to the anode 2 is lower. Such organic luminous device can realize high luminous efficiency.