Light emitting element, method for manufacturing same, and light emitting device
First Claim
1. A double-sided light-emitter that emits light from both sides thereof, comprising:
- a first electrode;
a layered body disposed on the first electrode, the layered body including a charge injection layer and a functional layer, the functional layer including a light-emitting layer;
a second electrode disposed on the layered body; and
a bank that defines a position of the light-emitting layer, whereinthe first electrode and the second electrode are transparent electrodes,the charge injection layer is formed by oxidation of an upper portion of a metal,the first electrode includes a metal layer that is a lower portion of the metal,an inner portion of the charge injection layer is depressed to define a recess,an upper peripheral edge of the recess is covered with a portion of the bank,a portion of the light-emitting layer is interposed between the second electrode and the upper peripheral edge of the recess,the portion of the light-emitting layer is interposed between the second electrode and the portion of the bank, and undergoes charge injection from the second electrode, andthe portion of the bank is interposed between the upper peripheral edge of the recess and the part of the light-emitting layer.
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Accused Products
Abstract
Organic light-emitting elements each have the following structure: a transparent anode, a functional layer including a charge injection layer and an organic light-emitting layer, and a transparent cathode are layered on a substrate in the stated order; a bank defines a formation area of the organic light-emitting layer; the charge injection layer is a metal oxide layer formed by oxidizing an upper surface portion of the anode composed of the metal layer, and a portion of the charge injection layer that is positioned under the area is depressed so as to form a recess; and the upper peripheral edge of the recess is covered with a covering portion of the bank.
50 Citations
15 Claims
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1. A double-sided light-emitter that emits light from both sides thereof, comprising:
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a first electrode; a layered body disposed on the first electrode, the layered body including a charge injection layer and a functional layer, the functional layer including a light-emitting layer; a second electrode disposed on the layered body; and a bank that defines a position of the light-emitting layer, wherein the first electrode and the second electrode are transparent electrodes, the charge injection layer is formed by oxidation of an upper portion of a metal, the first electrode includes a metal layer that is a lower portion of the metal, an inner portion of the charge injection layer is depressed to define a recess, an upper peripheral edge of the recess is covered with a portion of the bank, a portion of the light-emitting layer is interposed between the second electrode and the upper peripheral edge of the recess, the portion of the light-emitting layer is interposed between the second electrode and the portion of the bank, and undergoes charge injection from the second electrode, and the portion of the bank is interposed between the upper peripheral edge of the recess and the part of the light-emitting layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification