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

Patent metadata

Field	Value
Publication number	US-2016164033-A1
Application number	US-201514960818-A
Country	US
Kind code	A1
Filing date	Dec 7, 2015
Priority date	Dec 8, 2014
Publication date	Jun 9, 2016
Grant date	—

Abstract

An organic light-emitting display apparatus includes a substrate, a display unit formed on the substrate and including a plurality of emission regions, an encapsulant formed on the display unit and including at least one organic layer and at least one inorganic layer; and a plurality of reflectors formed on the encapsulant and disposed to respectively overlap at least regions around the plurality of emission regions.

First claim

What is claimed is:

1 . An organic light-emitting display apparatus comprising:
a substrate; a display unit formed on the substrate and comprising a plurality of emission regions; an encapsulant formed on the display unit and including at least one organic layer and at least one inorganic layer; and a plurality of reflectors formed on the encapsulant and disposed to respectively overlap at least regions around the plurality of emission regions.

2 . The organic light-emitting display apparatus of claim 1 , wherein the at least one organic layer comprises an organic layer disposed as a top layer of the encapsulant.

3 . The organic light-emitting display apparatus of claim 1 , further comprising a planarization layer formed between the encapsulant and the plurality of reflectors.

4 . The organic light-emitting display apparatus of claim 1 , further comprising a plurality of openings disposed to be adjacent to the plurality of reflectors and corresponding to the plurality of emission regions respectively.

5 . The organic light-emitting display apparatus of claim 4 , further comprising a plurality of color filters formed to fill the plurality of openings.

6 . The organic light-emitting display apparatus of claim 5 , wherein the color filter has a same color as a light emitted from the emission region.

7 . The organic light-emitting display apparatus of claim 4 , wherein a width of each of the openings is different from a width of the emission region corresponding to each of the openings.

8 . The organic light-emitting display apparatus of claim 7 , wherein a difference between the width of each of the openings and the width of the emission region corresponding to each of the openings is about 20 μm or less.

9 . The organic light-emitting display apparatus of claim 4 , wherein a sum of areas of the plurality of reflectors is larger than a sum of areas of the plurality of openings.

10 . The organic light-emitting display apparatus of claim 1 , wherein the reflector comprises at least one of aluminum (Al), Al alloy, argentum (Ag), Ag alloy, aurum (Au), or Au alloy.

11 . The organic light-emitting display apparatus of claim 1 , wherein the reflector has a thickness of about 100 nm or more.

12 . The organic light-emitting display apparatus of claim 3 , wherein the planarization layer comprises at least one of polyimide, polyacryl, or polysiloxane.

13 . The organic light-emitting display apparatus of claim 1 , wherein the display unit further comprises a pixel definition layer that defines the plurality of emission regions.

14 . The organic light-emitting display apparatus of claim 13 , wherein the pixel definition layer comprises at least one of a black material or a material having an optical density (OD) of about 1.

15 . The organic light-emitting display apparatus of claim 1 , wherein the display unit comprises a plurality of organic light-emitting devices respectively disposed in the plurality of emission regions and the plurality of organic light-emitting devices emit light at least toward the encapsulant.

16 . A method of manufacturing an organic light-emitting display apparatus, the method comprising:
forming a display unit on a substrate; forming an encapsulant by alternately stacking at least one organic layer and at least one inorganic layer on the display unit; and forming a plurality of reflectors on the encapsulant to respectively overlap at least regions around the plurality of emission regions.

17 . The method of claim 16 , wherein the at least one organic layer comprises an organic layer is disposed as a top layer of the encapsulant.

18 . The method of claim 16 , further comprising forming a planarization layer between the encapsulant and the plurality of reflectors.

19 . The method of claim 16 , further comprising forming a plurality of color filters to fill a plurality of openings adjacent to the plurality of reflectors respectively.

20 . The method of claim 16 , wherein forming the display unit comprises:
forming a pixel electrode in the emission region on the substrate; forming a pixel definition layer to surround side surfaces of the pixel electrode; forming an organic emission layer on the pixel electrode; and forming an opposite electrode to cover the organic emission layer and the pixel definition layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Moon Jeongwoo
• Park Sangho
• Kim Joonyoup
• Park Joungkeun

Classifications

• H10K59/878

  comprising reflective means · CPC title

• H10K50/856

  comprising reflective means · CPC title

• H10K59/8731 Primary

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H01L51/0094

  Electricity · mapped topic

• H01L51/56

  Electricity · mapped topic