Substrate for organic electronic device

Patent metadata

Field	Value
Publication number	US-9368758-B2
Application number	US-201414490288-A
Country	US
Kind code	B2
Filing date	Sep 18, 2014
Priority date	Mar 30, 2012
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

Provided are a substrate for an organic electronic device, and the like. The substrate for an organic electronic device having a functional layer which may improve a function such as light extraction efficiency of an organic electronic system such as organic light emitting device and stability of the device due to excellent cohesive strength to the substrate may be provided. An organic electronic system including the substrate and a use thereof may also be provided.

First claim

What is claimed is:

1. A substrate for an organic electronic device, comprising:
a glass substrate; and
a functional layer which is formed on the glass substrate, and which comprises a sintered product of a glass frit, an absolute value of a difference in refractive index between the glass substrate and the sintered product being 1.0 or less, and a scattering particle that is comprised in the sintered product and that has a refractive index with respect to light having a wavelength of 550 nm of 2.0 to 3.5 and an average diameter of 50 nm or more,
wherein the sintered product of the glass frit has a refractive index with respect of light having a wavelength of 550 nm of 1.3 to 1.7.

2. The substrate according to claim 1 , wherein an average diameter of at least one scattering particle is larger than a thickness of the functional layer, and thereby an uneven structure is formed on a surface of the functional layer.

3. The substrate according to claim 1 , further comprising: a high refractive layer formed on the functional layer.

4. The substrate according to claim 3 , wherein the high refractive layer has a refractive index with respect to light having a wavelength of 550 nm of 1.8 to 3.5.

5. The substrate according to claim 3 , wherein an absolute value of a difference in refractive index between the high refractive layer and the scattering particles is more than 0.3.

6. The substrate according to claim 1 , further comprising: an electrode layer formed on the functional layer.

7. An organic electronic device, comprising:
the substrate of claim 1 ;
a first electrode layer formed on the substrate;
an organic layer formed on the first electrode layer; and
a second electrode layer formed on the organic layer.

8. The organic electronic device according to claim 7 , wherein the organic layer comprises an emitting layer.

9. Lighting comprising the organic electronic device of claim 7 .

10. A method of manufacturing a substrate for an organic electronic device, comprising: forming a coating layer comprising a glass frit capable of forming a sintered product having an absolute value of a difference in refractive index between a glass substrate and the sintered product of 1.0 or less, and a scattering particle having a refractive index with respect to light having a wavelength of 550 nm of 2.0 to 3.5 and an average diameter of 50 nm or more on a glass substrate; and sintering the coating layer,
wherein the sintered product of the glass frit has a refractive index with respect of light having a wavelength of 550 nm of 1.3 to 1.7.

11. The method according to claim 10 , wherein the sintering of the coating layer is performed by thermal treatment or laser blazing.

12. The method according to claim 11 , wherein the thermal treatment is performed by maintaining the coating layer at a temperature of 300° C. to 500° C. for 30 minutes to 3 hours.

13. The method according to claim 10 , further comprising: forming a high refractive layer having a refractive index with respect to light having a wavelength of 550 nm of 1.8 to 3.5 on the plasticized coating layer.

Assignees

• Lg Display Co Ltd

Inventors

• Lee Jung Hyoung
• Choi Jun Rye
• Oh Duck Su

Classifications

• Y02E10/549

  Organic PV cells · CPC title

• H10K50/858

  comprising refractive means, e.g. lenses · CPC title

• H10K77/10 Primary

  Substrates, e.g. flexible substrates · CPC title

• H01L51/5268

  Electricity · mapped topic

• H01L51/0096

  Electricity · mapped topic