Patent ID: 9634073
Date: 2017-04-25
CPC Classifications: H01L

Claim:
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;