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US-9001027-B2 · Apr 7, 2015 · US
Organic light emitting diode display having low refraction protrusions
US9257677B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9257677-B2 |
| Application number | US-201414340456-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 24, 2014 |
| Priority date | Aug 8, 2013 |
| Publication date | Feb 9, 2016 |
| Grant date | Feb 9, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An organic light emitting diode display is provided. The organic light emitting diode display includes a flexible substrate, an organic light emitting diode disposed on the flexible substrate, a thin film encapsulator disposed on the organic light emitting diode, a plurality of low refraction protrusions disposed on at least one of a surface of the flexible substrate and the thin film encapsulator, wherein each of the low refraction protrusions is formed having an isosceles trapezoid shape, and a high refraction layer disposed covering the plurality of low refraction protrusions.
First claim
Opening claim text (preview).
What is claimed is: 1. An organic light emitting diode display comprising; a flexible substrate; an organic light emitting diode disposed on the flexible substrate; a thin film encapsulator disposed on the organic light emitting diode; a plurality of low refraction protrusions disposed on at least one of a surface of the flexible substrate and the thin film encapsulator, wherein each of the plurality of low refraction protrusions is formed having an isosceles trapezoid shape; and a high refraction layer disposed covering the plurality of low refraction protrusions. 2. The organic light emitting diode display of claim 1 , wherein a refractive index of the low refraction protrusions is less than a refractive index of the high refraction layer. 3. The organic light emitting diode display of claim 2 , wherein the refractive index of the low refraction protrusions is about 1.4, and the refractive index of the high refraction layer is about 1.6. 4. The organic light emitting diode display of claim 2 , further including: a plurality of nanobeads disposed in the low refraction protrusions. 5. The organic light emitting diode display of claim 4 , wherein the refractive index of the nanobeads is between the refractive index of the low refraction protrusions and the refractive index of the high refraction layer. 6. The organic light emitting diode display of claim 5 , wherein the refractive index of the nanobeads ranges from about 1.4 to about 1.6. 7. The organic light emitting diode display of claim 4 , wherein the organic light emitting diode is configured to emit green light having a first wavelength, and the high refraction layer is configured to absorb green light having a second wavelength. 8. The organic light emitting diode display of claim 7 , wherein the second wavelength ranges from about 460 nm to about 480 nm. 9. The organic light emitting diode display of claim 7 , further including: a retarder plate disposed on the high refraction layer, and a polarizing plate disposed on the retarder plate.
Assignees
Inventors
Classifications
Arrangements for polarized light emission (H10K59/8791 takes precedence) · CPC title
- H10K59/879Primary
comprising refractive means, e.g. lenses · CPC title
comprising refractive means, e.g. lenses · CPC title
- H10K59/873Primary
Encapsulations · CPC title
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9257677B2 cover?
- An organic light emitting diode display is provided. The organic light emitting diode display includes a flexible substrate, an organic light emitting diode disposed on the flexible substrate, a thin film encapsulator disposed on the organic light emitting diode, a plurality of low refraction protrusions disposed on at least one of a surface of the flexible substrate and the thin film encapsula…
- Who is the assignee on this patent?
- Samsung Display Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H10K59/879. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 09 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).