Organic electroluminescent element and lighting device
US-2016064682-A1 · Mar 3, 2016 · US
Electroluminescent Device
US2016359143A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016359143-A1 |
| Application number | US-201615171849-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 2, 2016 |
| Priority date | Jun 2, 2015 |
| Publication date | Dec 8, 2016 |
| Grant date | — |
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 electroluminescent device in which two or more light-emitting units which emit light identical in color are vertically stacked is configured such that a first relative maximal angle or a highest intensity angle viewed in a front direction of angular dependency of emission intensity in light emission from each light-emitting unit alone is different for each light-emitting unit, and D(θ)≧D(0)cos θ(0≦θ≦θ D ≦60 degrees) . . . Expression (1) is satisfied, where D(θ) represents angular dependency of emission intensity and θ D represents a specific angle in simultaneous light emission from all light-emitting units.
First claim
Opening claim text (preview).
What is claimed is: 1 . An electroluminescent device in which two or more light-emitting units which emit light identical in color are stacked, the electroluminescent device being configured such that a first relative maximal angle or a highest intensity angle viewed in a front direction of angular dependency of emission intensity in light emission from each light-emitting unit alone is different for each light-emitting unit, and D(θ)≧D(0)cos θ(0≦θ≦θ D ≦60 degrees) . . . Expression (1) being satisfied, where D(θ) represents angular dependency of emission intensity and θ D represents a specific angle in simultaneous light emission from all the light-emitting units. 2 . The electroluminescent device according to claim 1 , wherein θ D is set to 30 degrees. 3 . The electroluminescent device according to claim 1 , wherein a condition of θ1>θ2>θ3 is satisfied, with the number of the light-emitting units being set to 3 and θ1, θ2, and θ3 representing highest intensity angles when the light-emitting units emit light individually from a side where light emission is visually recognized, respectively. 4 . The electroluminescent device according to claim 1 , wherein a condition of θ1<θ2<θ3 is satisfied, with the number of the light-emitting units being set to 3 and θ1, θ2, and θ3 representing highest intensity angles when the light-emitting units emit light individually from a side where light emission is visually recognized, respectively. 5 . The electroluminescent device according to claim 1 , wherein a condition of θ1<θ3<θ2 is satisfied, with the number of the light-emitting units being set to 3 and θ1, θ2, and θ3 representing highest intensity angles when the light-emitting units emit light individually from a side where light emission is visually recognized, respectively. 6 . The electroluminescent device according to claim 1 , wherein the number of the light-emitting units is set to four or more.
Assignees
Inventors
Classifications
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016359143A1 cover?
- An electroluminescent device in which two or more light-emitting units which emit light identical in color are vertically stacked is configured such that a first relative maximal angle or a highest intensity angle viewed in a front direction of angular dependency of emission intensity in light emission from each light-emitting unit alone is different for each light-emitting unit, and D(θ)≧D(0)c…
- Who is the assignee on this patent?
- Konica Minolta Inc
- What technology area does this patent fall under?
- Primary CPC classification H01L51/5278. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Dec 08 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).