Display panel and display device
US-2024423023-A1 · Dec 19, 2024 · US
Organic electroluminescence element and method of manufacturing thereof
US9048448B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9048448-B2 |
| Application number | US-201313742584-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 16, 2013 |
| Priority date | Aug 6, 2010 |
| Publication date | Jun 2, 2015 |
| Grant date | Jun 2, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An organic EL element comprises: an anode; a cathode; a functional layer including at least a light-emitting layer; a hole injection layer disposed between the anode and the functional layer; and a bank. The hole injection layer contains tungsten oxide. Tungsten atoms constituting the tungsten oxide include both tungsten atoms with a valence of six and tungsten atoms with a valence less than six. The hole injection layer includes a crystal of the tungsten oxide. A particle diameter of the crystal is on an order of nanometers. The hole injection layer has a recessed portion whose inner side surface has an upper edge that is one of (i) aligned with part of a lower edge of the bank, the part being in contact with the light-emitting layer, and (ii) in contact with a bottom surface of the bank.
First claim
Opening claim text (preview).
The invention claimed is: 1. An organic EL element, comprising: an anode; a cathode; a functional layer that is disposed between the anode and the cathode and includes at least a light-emitting layer made of an organic material; a hole injection layer disposed between the anode and the functional layer; and a bank that defines a region in which the light-emitting layer is to be formed, wherein the hole injection layer contains tungsten oxide, tungsten atoms constituting…
Assignees
Inventors
Classifications
Electricity · mapped topic
Electricity · mapped topic
- H10K59/122Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9048448B2 cover?
- An organic EL element comprises: an anode; a cathode; a functional layer including at least a light-emitting layer; a hole injection layer disposed between the anode and the functional layer; and a bank. The hole injection layer contains tungsten oxide. Tungsten atoms constituting the tungsten oxide include both tungsten atoms with a valence of six and tungsten atoms with a valence less than si…
- Who is the assignee on this patent?
- Panasonic Corp, Joled Inc
- What technology area does this patent fall under?
- Primary CPC classification H10K59/122. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 02 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).