Display apparatus and method of manufacturing the same
US-2018240822-A1 · Aug 23, 2018 · US
Display device structure for reducing defects
US10950673B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10950673-B2 |
| Application number | US-201816217547-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 12, 2018 |
| Priority date | May 14, 2018 |
| Publication date | Mar 16, 2021 |
| Grant date | Mar 16, 2021 |
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Abstract
Official abstract text for this publication.
Provided is a display device including an organic insulating layer; a pixel electrode on the organic insulating layer; a pixel defining layer configured to cover an edge of the pixel electrode, having an opening corresponding to the pixel electrode, the pixel defining layer including a first layer including an inorganic insulating material and a second layer having less light transmittance in a first wavelength band than the first layer; an intermediate layer on a portion of the pixel electrode exposed via the opening, and including an emission layer; and an opposite electrode on the intermediate layer.
First claim
Opening claim text (preview).
What is claimed is: 1. A display device, comprising: an organic insulating layer; a pixel electrode on the organic insulating layer; a pixel defining layer that covers an edge of the pixel electrode, the pixel defining layer having an opening corresponding to the pixel electrode, and the pixel defining layer including a first layer including an inorganic insulating material and a second layer having less light transmittance in a first wavelength band than the first layer; an intermediate layer on a portion of the pixel electrode exposed via the opening, the intermediate layer including an emission layer; and an opposite electrode on the intermediate layer. 2. The display device as claimed in claim 1 , wherein the first wavelength band is in a range of 10 nm to 400 nm. 3. The display device as claimed in claim 1 , wherein the light transmittance of the second layer in the first wavelength band is 2% or less. 4. The display device as claimed in claim 1 , wherein: the pixel electrode is a first pixel electrode, and the display device further includes a second pixel electrode neighboring the first pixel electrode, and a portion of the organic insulating layer exposed between the first pixel electrode and the second pixel electrode is entirely covered by the second layer. 5. The display device as claimed in claim 1 , wherein the first layer includes at least one of silicon oxide and silicon nitride. 6. The display device as claimed in claim 1 , wherein the second layer includes amorphous silicon. 7. The display device as claimed in claim 6 , wherein the second layer includes an amorphous silicon layer having a thickness that is 1,000 Å or greater. 8. The display device as claimed in claim 1 , wherein the second layer includes an amorphous carbon-based material that absorbs light in the first wavelength band, the amorphous carbon-based material excluding diamond-like carbon (DLC). 9. The display device as claimed in claim 1 , wherein: the first layer is between the organic insulating layer and the second layer, and a portion of the first layer directly contacts the organic insulating layer. 10. The display device as claimed in claim 1 , further comprising a third layer on the second layer, the third layer including an inorganic insulating material, wherein the second layer is between the first layer and the third layer. 11. The display device as claimed in claim 1 , wherein: the second layer includes a first sub-layer and a second sub-layer, and a sub-layer closer to the organic insulating layer from among the first sub-layer and the second sub-layer has a larger light absorption rate than the other sub-layer.
Assignees
Inventors
Classifications
- H10K59/124Primary
Insulating layers formed between TFT elements and OLED elements · CPC title
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US10950673B2 cover?
- Provided is a display device including an organic insulating layer; a pixel electrode on the organic insulating layer; a pixel defining layer configured to cover an edge of the pixel electrode, having an opening corresponding to the pixel electrode, the pixel defining layer including a first layer including an inorganic insulating material and a second layer having less light transmittance in a…
- Who is the assignee on this patent?
- Samsung Display Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H10K59/124. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 16 2021 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).