Light-scattering substrate, method of manufacturing the same, organic light-emitting display device including the same, and method of manufacturing the organic light-emitting display device

摘要

A light-scattering substrate which can be thinned and has improved thermal resistance, a method of manufacturing the same, an organic light-emitting display device including the same, and a method of manufacturing the organic light-emitting display device are disclosed. The light-scattering substrate includes a light-scattering layer composed of a plurality of metal nanoparticles which are attached to at least a surface of a substrate. The metal nanoparticles are formed by agglomeration of a metal on the substrate, and show a surface plasmon phenomenon.

主权项

1. An organic light-emitting display device, comprising:
a first light-scattering layer including metal nanoparticles which are attached to a surface of a transparent substrate; a buffer layer formed on the transparent substrate so as to contain the metal nanoparticles; an active layer formed on the buffer layer and including a channel region, a source region, and a drain region; a gate insulating film formed on the transparent substrate and the active layer; a gate electrode formed on the gate insulating film so as to overlap the channel region; an interlayer insulating film formed on the gate insulating film so as to cover the gate electrode, and including contact holes which expose predetermined regions of the source region and the drain region, respectively; source and drain electrodes formed on the interlayer insulating film and connected to the source region and drain regions, respectively, by the contact holes; a passivation layer formed on the interlayer insulating film so as to cover the source region and drain electrodes; a first electrode formed on the passivation layer, and connected to one of the source and drain electrodes; and a pixel defined layer formed on the passivation layer, and exposing a predetermined region of the first electrode; the metal nanoparticles showing a surface plasmon phenomenon, and the metal nanoparticles are formed by stacking a metal thin film on the substrate and annealing the metal thin film so as to agglomerate a metal of the metal thin film.