Organic light emitting display apparatus and manufacturing method thereof
An organic light emitting display apparatus includes a pixel part including a pixel electrode, a light emitting layer and an opposite electrode, and a contact part in which the opposite electrode contacts a power line, wherein a first thickness of the opposite electrode in the pixel part is different from a second thickness of the opposite electrode in the contact part.
1. An organic light emitting display apparatus comprising:
a pixel part which generates and emits light, the pixel part comprising:
an organic light emitting device comprising a pixel electrode, a light emitting layer and an opposite electrode; and
a thin film transistor which provides a driving signal to the organic light emitting device; and
a contact part disposed adjacent to the pixel part, in which the opposite electrode contacts a power line and from which power is supplied to the pixel part opposite electrode via the power line,
wherein a first thickness of the opposite electrode within the pixel part comprising the organic light emitting device and the thin film transistor, is different from a second thickness of the opposite electrode within the contact part comprising the opposite electrode in contact with the power line.
2. The organic light emitting display apparatus of claim 1 , wherein the second thickness in the contact part is greater than the first thickness in the pixel part.
3. The organic light emitting display apparatus of claim 2 , wherein the opposite electrode comprises:
a first layer disposed in the pixel part and in the contact part; and
a second layer disposed on the first layer in the contact part.
4. The organic light emitting display apparatus of claim 2 , wherein
the first thickness is in a range of about 700 Å to about 1,000 Å, and
the second thickness is equal to or greater than about 2,000 Å.
5. The organic light emitting display apparatus of claim 1 , wherein the opposite electrode comprises a reflection electrode which reflects the light generated from the light emitting layer toward the pixel electrode.
6. A method of manufacturing an organic light emitting display apparatus, the method comprising:
disposing a thin film transistor, an opposite electrode, a pixel electrode and a light emitting layer on a substrate within a pixel part which generates and emits light; and
disposing the opposite electrode in contact with a power line on the substrate within a contact part which is adjacent to the pixel part and supplies power to the pixel part opposite electrode via the power line,
wherein a first thickness of the opposite electrode within the pixel part comprising the thin film transistor, the pixel electrode and the light emitting layer and, is different from a second thickness of the opposite electrode within the contact part comprising the opposite electrode in contact with the power line.
7. The method of claim 6 , wherein the second thickness in the contact part is equal to or greater than the first thickness in the pixel part.
8. The method of claim 7 , wherein disposing the opposite electrode comprises:
disposing a first layer of the opposite electrode in the pixel part and in the contact part; and
disposing a second layer of the opposite electrode on the first layer in the contact part.
9. The method of claim 7 , wherein
the first thickness is in a range of about 700 Å to about 1,000 Å, and
the second thickness is equal to or greater than about 2,000 Å.
10. The method of claim 7 , wherein the opposite electrode comprises a reflection electrode which reflects the light generated from the light emitting layer toward the pixel electrode.