Organic light-emitting display apparatus with color filter

Patent metadata

Field	Value
Publication number	US-9520452-B2
Application number	US-201514702526-A
Country	US
Kind code	B2
Filing date	May 1, 2015
Priority date	Feb 28, 2013
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

In an aspect, an organic light-emitting display apparatus is provided, including: an insulating layer having a inclined structure; a first electrode disposed on the insulating layer; a selective wavelength transparent layer disposed on the first electrode; a pixel defined layer disposed on the insulating layer and the first electrode and defining an emissive region and a non-emissive region; an organic emissive layer disposed on the first electrode; and a second electrode disposed on the organic emissive layer.

First claim

What is claimed is:

1. An organic light-emitting display apparatus comprising:
a substrate;
an insulating layer disposed on the substrate and comprising a first recess and a second recess having an inclined surface;
a first organic light-emitting diode (OLED) disposed on the first recess and comprising a first pixel electrode, a first organic emissive layer, and a first opposite electrode, wherein the first organic emissive layer generates light of a first color having a first wavelength range;
a second OLED disposed on the second recess and comprising a second pixel electrode, a second organic emissive layer, and a second opposite electrode, wherein the second organic emissive layer generates light of a second color having a second wavelength range;
a first pixel defined layer disposed between the first pixel electrode and the first opposite electrode and defining a first emissive region; and
a second pixel defined layer disposed between the second pixel electrode and the second opposite electrode and defining a second emissive region,
wherein at least a portion of the first pixel defined layer is a first color filter selected to transmit only the light of the first color having the first wavelength range generated by the first organic emissive layer,
wherein at least a portion of the second pixel defined layer is a second color filter selected to transmit only the light of the second color having the second wavelength range generated by the second organic emissive layer,
wherein the first color is different than the second color.

2. The organic light-emitting display apparatus of claim 1 , wherein the inclined surface has a tilt angle in a range from about 20 degrees to about 70 degrees with respect to a parallel line of the substrate.

3. The organic light-emitting display apparatus of claim 1 , wherein the first pixel electrode is disposed on the inclined surface.

4. The organic light-emitting display apparatus of claim 1 , wherein the first pixel electrode is provided on a bottom surface and a sidewall of the inclined surface.

5. The organic light-emitting display apparatus of claim 1 , wherein the first pixel defined layer extends on an upper surface of the insulating layer, and the first emissive region comprises an opening exposing the first pixel electrode.

6. The organic light-emitting display apparatus of claim 1 , wherein the first pixel electrode has a concave shape.

7. The organic light-emitting display apparatus of claim 1 , wherein the first pixel electrode is disposed on a sidewall of the inclined surface, and reflects light generated in the first organic emissive layer.

8. The organic light-emitting display apparatus of claim 1 , wherein the first pixel electrode is a transparent electrode, and the first opposite electrode is a bottom emissive type comprising a reflective layer.

9. The organic light-emitting display apparatus of claim 1 , further comprising: a thin film transistor connected to the first pixel electrode.

10. The organic light-emitting display apparatus of claim 1 , further comprising a sealing film covering the first OLED and the second OLED.

11. The organic light-emitting display apparatus of claim 1 , wherein the first pixel defined layer comprises one or more low refractive index layers alternately stacked with one or more high refractive index layers.

Assignees

• Samsung Display Co Ltd

Inventors

• Lim Jae-Ik
• Kim Jae-Kyoung

Classifications

• H10K59/8792

  comprising light absorbing layers, e.g. black layers · CPC title

• H10K59/8791

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K59/875

  Arrangements for extracting light from the devices · CPC title

• H10K59/8052

  Cathodes · CPC title

• H10K59/80518

  Reflective anodes, e.g. ITO combined with thick metallic layers · CPC title