Organic light-emitting device

An organic light-emitting device comprising:

• a first electrode;
• a second electrode;
• and
• an organic layer between the first electrode and the second electrode,
• wherein the organic layer comprises:
• an emission layer;
• a hole transport region between the first electrode and the emission layer;
• and
• an electron transport region between the emission layer and the second electrode,
• wherein 50% or more of a total volume of the second electrode is silver (Ag), the hole transport region comprises an amine-based polymer, and an absorption coefficient (k) of the amine-based polymer in a visible light region satisfies Equation 1:
• 0≤k<0.02. Equation 1

An organic light-emitting device comprising:

• a substrate divided into a first sub-pixel region, a second sub-pixel region, and a third sub-pixel region;
• a plurality of first electrodes respectively arranged in the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region of the substrate;
• a second electrode facing the plurality of first electrodes;
• and
• an organic layer between the plurality of first electrodes and the second electrode,
• wherein the organic layer comprises:
• a first emission layer, a second emission layer, and a third emission layer respectively arranged in the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region of the substrate;
• a hole transport region between the plurality of first electrodes and the first to third emission layers;
• and
• an electron transport region between the first to third emission layers and the second electrode,
• wherein 50% or more of a total volume of the second electrode is silver (Ag), the hole transport region comprises an amine-based polymer comprising a first repeating unit represented by Formula 1, and a number average molecular weight of the amine-based polymer is about 1,000 or more:
• wherein, in Formula 1,
• L11 to L13 are each independently selected from a substituted or unsubstituted C3-C10 cycloalkenylene group, a substituted or unsubstituted C1-C10 heterocycloalkenylene group, a substituted or unsubstituted C6-C60 arylene group, a substituted or unsubstituted C1-C60 heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,
• n11 to n13 are each independently selected from 0, 1, 2, and 3,
• R11 is selected from a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, and
• * and *′ each indicate a binding site to a neighboring atom.