An organic light emitting device includes first and second metal layers
used as electrodes on a substrate, an electron transport layer on the
first metal layer, a first partition wall insulating the first metal
layer from the second metal layer and extending onto the electron
transport layer along the first metal layer, a second partition wall on
the first metal layer around the electron transport layer, a third
partition wall separated from the first partition wall and on the second
metal layer, an organic light emitting layer on the electron transport
layer, a hole transport layer on the organic light emitting layer and
contacting the second metal layer, a protecting layer covering the hole
transport layer and extending to the first and second metal layers beyond
the second and third partition walls, and sealing materials filling
spaces between the protecting layer and the first and second layers.