Method of manufacturing organic light-emitting display apparatus and organic light-emitting display apparatus

Patent metadata

Field	Value
Publication number	US-9893285-B2
Application number	US-201615093319-A
Country	US
Kind code	B2
Filing date	Apr 7, 2016
Priority date	Oct 23, 2015
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

A method of manufacturing an organic light-emitting display apparatus using a light-blocking photoresist layer which minimizes damage to an intermediate layer, including an emission layer, during a process for manufacturing the organic light-emitting display apparatus.

First claim

What is claimed is:

1. An organic light-emitting display apparatus comprising:
a first thin film transistor comprising a first source electrode and a first drain electrode;
a second thin film transistor comprising a second source electrode and a second drain electrode;
a first pixel electrode and a second pixel electrode spaced apart from the first pixel electrode, the first pixel electrode being electrically connected to one of the first source electrode and the first drain electrode and the second pixel electrode being electrically connected to one of the second source electrode and the second drain electrode;
an insulating layer exposing at least a center portion of each of the first pixel electrode and the second pixel electrode;
a first intermediate layer disposed over the first pixel electrode and comprising a first emission layer;
a second intermediate layer disposed over the second pixel electrode and comprising a second emission layer;
a first upper electrode and a second upper electrode that respectively correspond to the first intermediate layer and the second intermediate layer and are spaced apart from each other, the first upper electrode contacting an upper surface of the first intermediate layer and the second upper electrode contacting an upper surface of the second intermediate layer;
a filling layer covering the first upper electrode and the second upper electrode and comprising first contact holes that expose a part of each of the first upper electrode and the second upper electrode; and
a common electrode disposed over the filling layer and contacting the first upper electrode and the second upper electrode through the first contact holes.

2. An organic light-emitting display apparatus comprising:
a first pixel electrode and a second pixel electrode spaced apart from the first pixel electrode;
an insulating layer exposing at least a center portion of each of the first pixel electrode and the second pixel electrode;
a first intermediate layer disposed over the first pixel electrode and comprising a first emission layer;
a second intermediate layer disposed over the second pixel electrode and comprising a second emission layer;
a first upper electrode and a second upper electrode that respectively correspond to the first intermediate layer and the second intermediate layer and are spaced apart from each other, the first upper electrode contacting an upper surface of the first intermediate layer and the second upper electrode contacting an upper surface of the second intermediate layer;
a filling layer covering the first upper electrode and the second upper electrode and comprising first contact holes that expose a part of each of the first upper electrode and the second upper electrode; and
a common electrode disposed over the filling layer and contacting the first upper electrode and the second upper electrode through the first contact holes,
wherein the filling layer comprises the first contact holes at locations corresponding to the insulating layer.

3. An organic light-emitting display apparatus comprising:
a first pixel electrode and a second pixel electrode spaced apart from the first pixel electrode;
an insulating layer exposing at least a center portion of each of the first pixel electrode and the second pixel electrode;
a first intermediate layer disposed over the first pixel electrode and comprising a first emission layer;
a second intermediate layer disposed over the second pixel electrode and comprising a second emission layer;
a first upper electrode and a second upper electrode that respectively correspond to the first intermediate layer and the second intermediate layer and are spaced apart from each other, the first upper electrode contacting an upper surface of the first intermediate layer and the second upper electrode contacting an upper surface of the second intermediate layer;
a filling layer covering the first upper electrode and the second upper electrode and comprising first contact holes that expose a part of each of the first upper electrode and the second upper electrode;
a common electrode disposed over the filling layer and contacting the first upper electrode and the second upper electrode through the first contact holes; and
a protection layer disposed between the first upper electrode and the second upper electrode and the filling layer,
wherein:
the protection layer comprises second contact holes; and
the common electrode contacts the first upper electrode and the second upper electrode through the second contact holes.

4. The organic light-emitting display apparatus of claim 3 , wherein the protection layer covers side surfaces of the first upper electrode, the second upper electrode, the first intermediate layer, and the second intermediate layer.

5. The organic light-emitting display apparatus of claim 1 , further comprising:
a first protection layer disposed between the first upper electrode and the filling layer; and
a second protection layer disposed between the second upper electrode and the filling layer and spaced apart from the first protection layer,
wherein:
the first and second protection layers comprise second contact holes; and
the common electrode contacts the first upper electrode and the second upper electrode through the second contact holes.

6. The organic light-emitting display apparatus of claim 5 ,
wherein:
the first protection layer is patterned in the same shape as that of the first upper electrode; and
the second protection layer is patterned in the same shape as that of the second upper electrode.

7. The organic light-emitting display apparatus of claim 5 ,
wherein:
a side surface of the first protection layer is flush with a side surface of the first upper electrode; and
a side surface of the second protection layer is flush with a side surface of the second upper electrode.

8. The organic light-emitting display apparatus of claim 5 , wherein the filling layer is in direct contact with side surfaces of the first intermediate layer, the second intermediate layer, the first upper electrode, and the second upper electrode.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Waljun
• Kim Yeonhong
• Kim Junghyun
• Kim Jongyun
• Lee Sungeun
• Choi Kwangyoung

Classifications

• H01L51/0018 Primary

  Electricity · mapped topic

• H01L27/3244

  Electricity · mapped topic

• H01L2227/323

  Electricity · mapped topic

• H01L51/5221

  Electricity · mapped topic

• H01L51/56

  Electricity · mapped topic