Organic EL element array with improved aperture ratio

An organic EL element array comprising a plurality of organic EL elements, each said 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,

• wherein said first carrier-transporting layer of a first organic EL element of said plurality of organic EL elements is formed in common with said first carrier-transporting layer of a second organic EL element disposed adjacent to said first organic EL element through an interpixel region,
• said second carrier-transporting layer of said first organic EL element is formed in common with said second carrier-transporting layer of said second organic EL element through said interpixel region,
• said interpixel region has a configuration such that a first electrode of said second organic EL element, said first carrier-transporting layer, a first light-emitting layer which is the light-emitting layer of said first organic EL element, a second light-emitting layer which is the light-emitting layer of said second organic EL element, said second carrier-transporting layer, and a second electrode of said second organic EL element are arranged in this order,
• said first light-emitting layer and said second light-emitting layer mutually are in contact with each other and overlap in said interpixel region,
• carrier-transporting property of one of said first light-emitting layer and said second light-emitting layer is electron-transporting property and carrier-transporting property of the other is hole-transporting property and
• carrier-transporting property of said first light-emitting layer is hole-transporting property when carrier-transporting property of said first carrier-transporting layer is electron-transporting property or is electron transporting property when carrier-transporting property of said first carrier-transporting layer is hole transporting property.

An organic EL element array comprising a plurality of organic EL elements disposed, each said organic EL element comprising, in sequence, a first electrode, a first carrier-transporting layer, a light-emitting layer, a second carrier-transporting layer, and a second electrode,

• wherein said first carrier-transporting layer of a first organic EL element of said plurality of organic EL elements is formed in common with said first carrier-transporting layer of a second organic EL element disposed adjacent to said first organic EL element through an interpixel region,
• said second carrier-transporting layer of said first organic EL element is formed in common with said second carrier-transporting layer of said second organic EL element through said interpixel region,
• said interpixel region has a configuration such that said first carrier-transporting layer, a first light-emitting layer which is the light-emitting layer of said first organic EL element, a second light-emitting layer which is the light-emitting layer of said second organic EL element, and said second carrier-transporting layer are arranged in this order,
• said first light-emitting layer and said second light-emitting layer mutually are in contact with each other and overlap in said interpixel region, and
• said first carrier-transporting layer has electron-transporting property, said first light-emitting layer has hole-transporting property, said second light-emitting layer has electron-transporting property, and said second carrier-transporting layer has hole-transporting property.