Organic light emitting device and method for manufacturing the same

PURPOSE: An organic light emitting device and a manufacturing method thereof are provided to improve luminous efficiency and a lifetime by minimizing the change of light emitted from the organic light emitting device. CONSTITUTION: A first electrode layer(520) is formed on a substrate. An organic layer(530) is formed on the first electrode layer and includes a hole injection layer(550), a hole transport layer(560), a light emitting layer(570), an electron transport layer(580), and an electron injection layer(590). The hole transport layer transmits holes from the hole injection layer to the light emitting layer. A second electrode layer(540) is formed on the electron injection layer. [Reference numerals] (AA) First color dopant; (BB) Second color dopant; (CC) Third color dopant