Organic light emitting display apparatus and method of manufacturing organic light emitting display apparatus
View Patent ↗An organic light emitting display apparatus capable of preventing or reducing an IR drop and a decrease in a contrast ratio, and a method of manufacturing the same. The organic light emitting display apparatus includes: a substrate; a plurality of thin film transistors on the substrate; a plurality of organic light emitting diodes, each of the organic light emitting diodes including: a pixel electrode electrically connected to a corresponding one of the thin film transistors, a portion of an opposite electrode, the opposite electrode being above the substrate and covering all of the substrate, and an intermediate layer between the pixel electrode and the opposite electrode and comprising at least an organic light emitting layer; an opposite electrode bus line between adjacent pixel electrodes of the organic light emitting diodes on the opposite electrode of the organic light emitting diodes; and a black matrix surrounding the opposite electrode bus line.
1. An organic light emitting display apparatus comprising:
a substrate;
a plurality of thin film transistors on the substrate;
a plurality of organic light emitting diodes, each of the organic light emitting diodes comprising:
a pixel electrode electrically connected to a corresponding one of the thin film transistors,
a portion of an opposite electrode, the opposite electrode being above the substrate and covering all of the substrate, and
an intermediate layer between the pixel electrode and the opposite electrode and comprising at least an organic light emitting layer;
an opposite electrode bus line between adjacent pixel electrodes of the organic light emitting diodes on the opposite electrode of the organic light emitting diodes; and
a black matrix covering more than one side of the opposite electrode bus line.
2. The organic light emitting display apparatus of claim 1 , wherein the opposite electrode bus line has a stripe pattern.
3. The organic light emitting display apparatus of claim 1 , wherein the opposite electrode bus line has a mesh pattern.
4. The organic light emitting display apparatus of claim 1 , wherein the opposite electrode bus line comprises a metal selected from the group consisting of silver, gold, copper, nickel, and combinations thereof.
5. The organic light emitting display apparatus of claim 1 , further comprising a planarization layer covering the thin film transistors, wherein the organic light emitting diodes are on the planarization layer, and the pixel electrodes of the organic light emitting diodes are electrically connected to the thin film transistors through contact holes formed in the planarization layer.
6. The organic light emitting display apparatus of claim 1 , wherein light generated in the organic light emitting layers of the organic light emitting diodes is emitted out of the organic light emitting display apparatus through the opposite electrode of the organic light emitting diodes.
7. The organic light emitting display apparatus of claim 1 , wherein the pixel electrodes of the organic light emitting diodes are anodes, and the opposite electrode of the organic light emitting diodes is a cathode.
8. The organic light emitting display apparatus of claim 1 , further comprising a pixel defining layer having a set thickness, the pixel defining layer being around edge portions of the pixel electrodes, wherein the opposite electrode bus line and the black matrix are on the pixel defining layer.
9. The organic light emitting display apparatus of claim 1 , further comprising an encapsulation structure on the opposite electrode, wherein the organic light emitting diodes are sealed by the encapsulation structure.
10. The organic light emitting display apparatus of claim 1 , further comprising a buffer layer on the substrate.
11. An organic light emitting display apparatus comprising:
a substrate;
a plurality of thin film transistors on the substrate;
a plurality of organic light emitting diodes, each of the organic light emitting diodes comprising:
a pixel electrode electrically connected to a corresponding one of the thin film transistors,
a portion of an opposite electrode, the opposite electrode being above the substrate and covering all of the substrate, and
an intermediate layer between the pixel electrode and the opposite electrode and comprising at least an organic light emitting layer;
a plurality of opposite electrode bus lines spaced apart from each other, each opposite electrode bus line being between adjacent pixel electrodes of the organic light emitting diodes on the opposite electrode of the organic light emitting diodes; and
a plurality of black matrices spaced apart from each other, wherein each of the black matrices covers a corresponding one of the opposite electrode bus lines.