Organic light-emitting display device and method of manufacturing the same

摘要

An organic light-emitting display device includes a substrate. A buffer layer is formed on the substrate. A thin film transistor is disposed on the buffer layer. The thin film transistor includes an active layer, a gate electrode, a source electrode, a drain electrode, a first insulating layer, and a second insulating layer. An uneven pattern is formed by patterning the buffer layer. A first pixel electrode is disposed in an opening formed in the second insulating layer. The first pixel electrode includes a transparent conductive oxide. A second pixel electrode is disposed on the first pixel electrode. The second pixel electrode includes a semi-transmissive layer. An organic lighting-emitting layer is formed on the second pixel electrode. An opposite electrode is formed on the organic lighting-emitting layer.

主权项

1. An organic light-emitting display device comprising:
a substrate; a buffer layer disposed on the substrate; a thin film transistor disposed on the buffer layer, wherein the thin film transistor comprises an active layer, a gate electrode, a source electrode, a drain electrode, a first insulating layer disposed between the active layer and the gate electrode, and a second insulating layer, wherein the second insulating layer is disposed between the gate electrode and the source electrode and between the gate electrode and the drain electrode; an uneven pattern unit comprising an uneven pattern formed by patterning the buffer layer, the uneven pattern including a plurality of alternating peaks and valleys; a first pixel electrode disposed in an opening formed in the second insulating layer, wherein the first pixel electrode comprises a transparent conductive oxide; a second pixel electrode disposed on the first pixel electrode, wherein the second pixel electrode comprises a semi-transmissive layer, the second pixel electrode directly contacting the first pixel electrode; an organic lighting-emitting layer formed on the second pixel electrode; and an opposite electrode formed on the organic lighting-emitting layer and disposed opposite to the second pixel electrode, wherein the organic light-emitting display device comprises a pixel area, a transistor area, and a capacitor area and the uneven pattern unit is located within the pixel area, wherein the capacitor area comprises a first capacitor electrode and a second capacitor electrode, the second capacitor electrode comprising two layers;
the first capacitor electrode formed from a same layer as the active layer, the first capacitor electrode comprising ion impurities;a first layer of the two layers of the second capacitor electrode disposed on the first insulating layer, the first layer of the two layers of the second capacitor electrode formed of same materials as the first pixel electrode; anda second layer of the two layers of the second capacitor electrode disposed directly on the first layer of the two layers of the second capacitor electrode, the second layer of the two layers of the second capacitor electrode formed of same materials as the second pixel electrode.