Patent ID: 8669701

Claim:
A production method of an organic EL element array comprising a first organic EL element and a second organic EL element disposed adjacent to the first organic EL element, each organic EL element comprising a first electrode, a first carrier-transporting layer, a light-emitting layer, a second carrier-transporting layer, and a second electrode, the production method comprising the steps of: forming a plurality of first electrodes; forming a first carrier-transporting layer in common to and on the plurality of first electrodes through an interpixel region; forming a first light-emitting layer of a first organic EL element on the first carrier-transporting layer and in a region in which the first organic EL element is formed a film thickness of the first light-emitting layer being larger on the first electrode than on the interpixel region; forming a second light-emitting layer of a second organic EL element on the first carrier-transporting layer and in a region in which the second organic EL element is formed a film thickness of the second light-emitting layer being larger on the first electrode than on the interpixel region; and forming a second carrier-transporting layer in common to and on the first light-emitting layer and the second light-emitting layer through the interpixel region wherein the second light-emitting layer covers a portion of the first light-emitting layer in the interpixel region, wherein carrier-transporting property of one of the first light-emitting layer and the second light-emitting layer is electron-transporting property and carrier-transporting property of the other is hole-transporting property, wherein carrier-transporting property of the first light-emitting layer is hole-transporting property when carrier-transporting property of the first carrier-transporting layer is electron-transporting property or is electron-transporting property when carrier-transporting property of the first carrier-transporting layer is hole-transporting property.