Organic electroluminescent element, organic electroluminescent display device, and electronic equipment
US-2024423010-A1 · Dec 19, 2024 · US
Method of manufacturing a display device
US2016301034A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016301034-A1 |
| Application number | US-201615092801-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 7, 2016 |
| Priority date | Apr 10, 2015 |
| Publication date | Oct 13, 2016 |
| Grant date | — |
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Abstract
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A method for manufacturing a display device is provided including forming a light emitting element by stacking in sequence a pixel electrode, light emitting layer and common electrode above a substrate, and forming an organic material pattern including a plurality of protrusions by evaporating an organic material above the common electrode, wherein the evaporation is performed under a reduced pressure in at a substrate temperature that is equal to or less than a glass transition temperature of the organic material.
First claim
Opening claim text (preview).
1 . A method for manufacturing a display device comprising: forming a light emitting element by stacking in sequence a pixel electrode, light emitting layer and common electrode above a substrate; and forming an organic material pattern including a plurality of protrusions by evaporating an organic material above the common electrode; wherein the evaporating is performed under a reduced pressure at a substrate temperature that is equal to or less than a glass transition temperature of the organic material. 2 . The method for manufacturing a display device according to claim 1 , wherein the substrate temperature range is 70°C. to 100°C. 3 . The method for manufacturing a display device according to claim 1 , wherein the evaporating is performed under a vacuum of 10 −5 Pa to 10 −7 Pa. 4 . The method for manufacturing a display device according to claim 3 further comprising forming a first protection film so as to cover a pattern including the plurality of protrusions. 5 . The method for manufacturing a display device according to claim 4 , wherein the pattern of the plurality of protrusions has a spherical surface. 6 . The method for manufacturing a display device according to claim 5 , wherein the pattern of the plurality of protrusions has a diameter of 0.1 μm or more and 10 μm or less. 7 . The method for manufacturing a display device according to claim 6 , wherein the pattern of the plurality of protrusions has a height of 0.01 μm or more and 0.5 μm or less. 8 . The method for manufacturing a display device according to claim 7 , wherein the pattern of the plurality of protrusions has a variation in diameter of 0.01 μm or more and 10 μm or less. 9 . The method for manufacturing a display device according to claim 8 , wherein the pattern of the plurality of protrusions is formed with 100 or more and 1000000 or less protrusion patterns per pixel. 10 . The method for manufacturing a display device according to claim 9 further comprising forming a second protection film above the light emitting element before forming the pattern of the plurality of protrusions.
Assignees
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Classifications
comprising refractive means, e.g. lenses · CPC title
- H10K59/879Primary
comprising refractive means, e.g. lenses · CPC title
Electricity · mapped topic
- H01L51/5275Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US2016301034A1 cover?
- A method for manufacturing a display device is provided including forming a light emitting element by stacking in sequence a pixel electrode, light emitting layer and common electrode above a substrate, and forming an organic material pattern including a plurality of protrusions by evaporating an organic material above the common electrode, wherein the evaporation is performed under a reduced p…
- Who is the assignee on this patent?
- Japan Display Inc
- 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 Thu Oct 13 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).