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

Patent metadata

Field	Value
Publication number	US-2016111685-A1
Application number	US-201514657609-A
Country	US
Kind code	A1
Filing date	Mar 13, 2015
Priority date	Oct 15, 2014
Publication date	Apr 21, 2016
Grant date	—

Abstract

An organic light-emitting illumination apparatus that may be easily manufactured and may provide high-brightness illumination, and a method of manufacturing the same. The organic light-emitting illumination apparatus includes: a first flexible substrate; a first electrode disposed on the first flexible substrate and configured to transmit light; an intermediate layer disposed on the first electrode and including a light emission layer; a second electrode disposed on the intermediate layer and configured to transmit light; a second flexible substrate disposed on the second electrode; and a reflector interposed between the second flexible substrate and the second electrode to correspond to a first region of the second flexible substrate.

First claim

What is claimed is:

1 . An organic light-emitting illumination apparatus comprising:
a first flexible substrate; a first electrode disposed on the first flexible substrate and configured to transmit light; an intermediate layer disposed on the first electrode and comprising a light emission layer; a second electrode disposed on the intermediate layer and configured to transmit light; a second flexible substrate disposed on the second electrode; and a reflector interposed between the second flexible substrate and the second electrode to correspond to a first region of the second flexible substrate.

2 . The organic light-emitting illumination apparatus of claim 1 , further comprising a buffer layer interposed between the second flexible substrate and the second electrode and between the reflector and the second electrode.

3 . The organic light-emitting illumination apparatus of claim 2 , wherein:
the buffer layer corresponds to the first region of the second flexible substrate and a second region of the second flexible substrate; and the second region comprises a residual portion of the second flexible substrate other than the first region.

4 . The organic light-emitting illumination apparatus of claim 3 , wherein a first thickness of the buffer layer in the first region of the second flexible substrate is less than a second thickness of the buffer layer in the second region of the second flexible substrate.

5 . The organic light-emitting illumination apparatus of claim 2 , wherein the buffer layer has an elastic characteristic.

6 . The organic light-emitting illumination apparatus of claim 2 , wherein the buffer layer comprises a hole transport material.

7 . The organic light-emitting illumination apparatus of claim 1 , wherein the first flexible substrate and the second flexible substrate are bent and folded a plurality of times to provide a light emission area corresponding to the reflector.

8 . The organic light-emitting illumination apparatus of claim 7 , wherein a portion of the second flexible substrate corresponding to the reflector is not covered by the first flexible substrate or other portions of the second flexible substrate.

9 . The organic light-emitting illumination apparatus of claim 1 , wherein one edge of the reflector is adjacent to one edge of the second flexible substrate.

10 . A method of manufacturing an organic light-emitting illumination apparatus, comprising:
preparing a first flexible substrate; forming a first electrode configured to transmit light on the first flexible substrate; forming an intermediate layer comprising a light emission layer on the first electrode; forming a second electrode configured to transmit light onto the intermediate layer; preparing a second flexible substrate; forming a reflector corresponding to a first region of the second flexible substrate; and attaching the first flexible substrate and the second flexible substrate such that the reflector faces the second electrode.

11 . The method of claim 10 , further comprising forming a buffer layer on the second electrode,
wherein the attaching of the first flexible substrate and the second flexible substrate comprises attaching the first flexible substrate and the second flexible substrate such that the reflector faces the buffer layer.

12 . The method of claim 11 , wherein the forming of the buffer layer on the second electrode comprises forming the buffer layer on an entire region of the second electrode.

13 . The method of claim 12 , wherein the attaching of the first flexible substrate and the second flexible substrate comprises attaching the first flexible substrate and the second flexible substrate such that a first thickness of the buffer layer in the first region of the second flexible substrate is less than a second thickness of the buffer layer in the second region of the second flexible substrate.

14 . The method of claim 11 , wherein the forming of the buffer layer on the second electrode comprises forming the buffer layer by using an elastic material.

15 . The method of claim 11 , wherein the forming of the buffer layer on the second electrode comprises forming the buffer layer by using a hole transport material.

Assignees

• Samsung Display Co Ltd

Inventors

• Naijo Tsuyoshi

Classifications

• H10K59/878

  comprising reflective means · CPC title

• H10K59/80524

  Transparent cathodes, e.g. comprising thin metal layers · CPC title

• H10K50/856

  comprising reflective means · CPC title

• H10K59/871 Primary

  Self-supporting sealing arrangements · CPC title

• H01L51/5056

  Electricity · mapped topic