Organic light emitting device
Disclosed is an organic light emitting device.
1. An organic light emitting device comprising:
a first electrode;
an organic material layer including an at least five-layered emission layer provided between the first electrode and a second electrode; and
a secondary electrode provided on a top, a bottom, or a side surface of the first electrode and electrically connected to the first electrode, the secondary electrode having a mesh structure,
wherein
each of meshes of the secondary electrode configures a pixel of the organic light emitting device,
a sheet resistance of the first electrode is 5,000Ω/□ or more and a sheet resistance of the secondary electrode is 3Ω/□ or less,
an area of the pixel is 0.01 mm 2 to 0.64 cm 2 and an aperture ratio of the secondary electrode is 70% or more,
a multiplication of the sheet resistance of the first electrode and the area of one of the pixels is 3,200, V cm 2 /A or less, and
a multiplication of the sheet resistance of the secondary electrode and a whole pixel area of the organic light emitting device is 960 V cm 2 /A or less.
2. The organic light emitting device of claim 1 , wherein number of pixels may be 1,000 to 1,000,000.
3. The organic light emitting device of claim 1 , wherein the first electrode comprises one or more materials selected from a group consisting of Nb-based oxide, Ti-based oxide, Zn-based oxide, and a conductive polymer.
4. The organic light emitting device of claim 1 , wherein a luminance difference between one pixel and another pixel is within 30%.
5. The organic light emitting device of claim 1 , wherein a luminance difference in a whole emissive area of the organic light emitting device is within 10%.
6. The organic light emitting device of claim 1 , wherein a resistance between a first electrode included in one pixel and a first electrode included in another pixel is 2,000Ω to 800,000 Ω.
7. The organic light emitting device of claim 1 , wherein the pixel is provided in plurality, and each of the plurality of pixels emits white light of 2,000 K to 12,000 K.
8. The organic light emitting device of claim 1 , further comprising:
a substrate provided on a surface of the first electrode opposite to a surface on which the organic material layer is provided; and
a light scattering layer provided between the substrate and the first electrode,
wherein the light scattering layer comprises a planarization layer.
9. The organic light emitting device of claim 1 , further comprising:
a substrate provided on a surface of the first electrode opposite to a surface on which the organic material layer is provided;
a light scattering layer provided on a surface of the substrate opposite to a surface on which the first electrode is provided.
10. The organic light emitting device of claim 1 , wherein the organic light emitting device is a flexible organic light emitting device.
11. An organic light emitting device comprising:
a first electrode;
an organic material layer including at least two layered emission layer provided between the first electrode and a second electrode; and
a secondary electrode provided on a top, a bottom, or a side surface of the first electrode and electrically connected to the first electrode, the secondary electrode having a mesh structure,
wherein
each of meshes of the secondary electrode configures a pixel of the organic light emitting device,
the sheet resistance of the first electrode is 5,000Ω/□ or more and a sheet resistance of the secondary electrode is 3Ω/□ or less,
an area of the pixel is 0.01 mm 2 to 0.64 cm 2 and an aperture ratio of the secondary electrode is 70% or more,
a multiplication of the sheet resistance of the first electrode and the area of one of the pixels is 1,600 V cm 2 /A or less, and
a multiplication of the sheet resistance of the secondary electrode and a whole pixel area of the organic light emitting device is 480 V cm 2 /A or less.
12. A lighting device comprising an organic light emitting device,
wherein the organic light emitting device including:
a first electrode;
a second electrode provided opposite to the first electrode;
an organic material layer including an at least five-layered emission layer provided between the first electrode and the second electrode; and
a secondary electrode provided on a top, a bottom, or a side surface of the first electrode and electrically connected to the first electrode, the secondary electrode having a mesh structure,
wherein
each of meshes of the secondary electrode configures a pixel of the organic light emitting device,
a sheet resistance of the first electrode is 5,000Ω/□ or more, and a sheet resistance of the secondary electrode is 3Ω/□ or less,
an area of the pixel is 0.01 mm 2 to 0.64 cm 2 and an aperture ratio of the secondary electrode is 70% or more,
a multiplication of the sheet resistance of the first electrode and the area of one of the pixels is 3,200, V cm 2 /A or less, and
a multiplication of the sheet resistance of the secondary electrode and a whole pixel area of the organic light emitting device is 960 V cm 2 /A or less.