| 摘要 |
<p>PURPOSE: An organic electroluminescent device is provided to extend the radiation generating area within each light-emitting layer, thereby improving the luminance property. CONSTITUTION: A first light emitting layer (151) is comprised of a first and a second host material and one dopant (151c). In a first area (A1), a first host layer (151a), which is comprised of the first host material, is formed. In a second area (A2), a second host layer (151b), which is comprised of the second host material, is formed. In a third area (A3), the first host layer and the second host layer are overlapped. The third area has a width of 80% to 95% width of the first host layer and the second host layer.</p> |
