High resolution organic light-emitting diode devices, displays, and related methods

1. A method of manufacturing an organic light-emitting diode display comprising a substrate having a well defined by a confinement structure, wherein the well contains a first electrode and a second electrode spaced from each other, the method comprising:

depositing a light-emissive material in the well via ink-jet printing, thereby forming a continuous light-emissive material layer in the well from the deposited light-emissive material, wherein the continuous light-emissive material layer spans and is contained within boundaries of the well, wherein a surface of the continuous light-emissive material layer that faces away from the substrate has a non-planar topography; and

positioning a common electrode over the continuous light-emissive material layer.

2. The method of claim 1 , wherein the depositing comprises depositing the light-emissive material over a hole conducting layer.

3. The method of claim 1 , further comprising forming the confinement structure on the substrate.

4. The method of claim 3 , wherein forming the confinement structure comprises:

forming the confinement structure as a continuous layer; and

patterning the confinement structure using a mask to remove portions of the confinement structure to form the well.

5. The method of claim 1 , further comprising thermally treating the deposited light-emissive material to form the continuous light-emissive material layer.

6. A method for manufacturing an organic light-emitting diode display comprising a confinement structure defining a plurality of wells on a substrate, and a plurality of electrodes in the plurality of wells, the method comprising, comprising:

forming a first organic light-emissive layer having a first light-emissive wavelength in a first well of the plurality of wells, wherein the first well contains a plurality of electrodes;

forming a second organic light-emissive layer having a second light-emissive wavelength in a second well of the plurality of wells, wherein the second well contains a second plurality of electrodes; and

forming a third organic light-emissive layer having a third light-emissive wavelength in a third well of the plurality of wells, wherein the third well contains at least one third electrode,

wherein a number of electrodes disposed in each of the first and second wells differs from a number of electrodes disposed in the third well.

7. The method of claim 6 , wherein a pixel of the organic light-emitting diode display is defined by an electrode and a portion of the first organic light emissive layer from the first well, a portion of the second organic light emissive layer from the second well, and a portion of the third organic light-emissive layer from the third well.

8. The method of claim 6 , wherein forming the first, second, and third organic light-emissive layers comprises depositing first, second, and third organic light-emissive materials via ink-jet printing into the first, second, and third wells, respectively.

9. The method of claim 8 , wherein forming the first, second, and third organic light-emissive layers further comprises thermally treating the deposited first, second, and third organic light-emissive materials.

10. The method of claim 6 , wherein a pixel of the organic light-emitting diode display is defined by an electrode from each of the first, second, and third wells.

11. The method of claim 6 , wherein the first plurality of electrodes and the second plurality of electrodes are equal in number.

12. A method of making an organic light-emissive display comprising a substrate comprising a first plurality of electrodes disposed consecutively and in alignment in a confinement region surrounded by a first confinement structure, and a second plurality of electrodes disposed consecutively and in alignment in a second confinement region surrounded by a second confinement structure, the method comprising:

depositing a first organic light-emissive material having a first light-emissive wavelength within the first confinement region and over the first plurality of electrodes;

depositing a second organic light-emissive material having a second light-emissive wavelength within the second confinement region and over the second plurality of electrodes;

forming a first continuous light-emissive layer from the first organic light-emissive material deposited in the first confinement region, the first continuous light-emissive layer spanning and contained within a boundary defined by the first confinement structure; and

forming a second continuous light-emissive layer from the second organic light-emissive material deposited in the second confinement region, the second continuous light-emissive layer spanning and contained within a boundary defined by the second confinement structure;

wherein each of the first plurality of electrodes and the second plurality of electrodes is separately addressable to define pixels of the organic light-emissive display, each pixel comprising an electrode of the first plurality of electrodes and an electrode of the second plurality of electrodes.

13. The method of claim 12 , wherein forming the first and second continuous light-emissive layers of the first and second organic light-emissive materials comprises treating the first and second organic light-emissive materials deposited via one or more of drying and curing.

14. The method of claim 12 , wherein forming the first and second continuous light-emissive layers comprises forming solid first and second continuous light-emissive layers.

15. The method of claim 12 , further comprising depositing an additional electrode over the first and second continuous light-emissive layers.

16. The method of claim 15 , wherein the additional electrode is operably coupled to each of the first plurality and second plurality of electrodes.

17. The method of claim 15 , wherein electrodes of the first and second pluralities of electrodes are reflective electrodes and the additional electrode is a transparent electrode.

18. The method of claim 15 , wherein electrodes of the first and second pluralities of electrodes are transparent electrodes and the additional electrode is a reflective electrode.

19. The method of claim 12 , further comprising depositing an electrically insulative material layer between consecutively disposed electrodes of each of the first and second plurality of electrodes.

20. The method of claim 12 , wherein each of the first continuous light-emissive layer and the second continuous light-emissive layer has a light-emissive property corresponding to one of red, green, or blue color emission, and

wherein the light emissive property of the first continuous light-emissive layer and the second continuous light-emissive layer correspond to different color emission.

21. The method of claim 12 , wherein surfaces of each of the first and second continuous light-emissive layers that face away from the substrate have a non-planar topography.

22. The method of claim 12 , wherein the first plurality of electrodes are aligned on the substrate in a first column, and the second plurality of electrodes are aligned on the substrate in a second column, wherein the first column and the second column are parallel to each other.

23. The method of claim 12 , wherein depositing the first and second organic light-emissive materials comprises inkjet printing the first and second organic light-emissive materials.