Color filter and display device comprising same
US-12058911-B2 · Aug 6, 2024 · US
Display device and fabrication method thereof
US2025151512A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025151512-A1 |
| Application number | US-202519014440-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 9, 2025 |
| Priority date | May 11, 2018 |
| Publication date | May 8, 2025 |
| Grant date | — |
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- Title
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Abstract
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A high-resolution display device is provided. The display device includes a plurality of light-emitting units emitting light of different colors. The light-emitting unit has a microcavity structure and intensifies light with a specific wavelength. In the light-emitting units emitting light of different colors, reflective layers with different thicknesses are formed, an insulating layer is formed to cover the reflective layers, and then a top surface of the insulating layer is subjected to planarization treatment, whereby an insulating layer with different thicknesses is formed. After that, light-emitting elements emitting white light are formed over the planarized top surface of the insulating layer to overlap with the respective reflective layers, whereby the light-emitting units that intensify different colors due to different optical path lengths are separately formed.
First claim
Opening claim text (preview).
1 . A display device comprising: a first light-emitting element, a second light-emitting element, a first insulating layer, a first optical adjustment layer, and a second optical adjustment layer, wherein in each of the first light-emitting element and the second light-emitting element, a lower electrode having a light-transmitting property, a light-emitting layer, and an upper electrode having a semi-transmissive property and a semi-reflective property are stacked in this order, wherein at least top surfaces of the first optical adjustment layer and the second optical adjustment layer each have a function of reflecting visible light, wherein the first optical adjustment layer is thinner than the second optical adjustment layer, wherein the first insulating layer is provided to cover the first optical adjustment layer and the second optical adjustment layer and has a planarized top surface, wherein the first light-emitting element overlaps with the first optical adjustment layer with the first insulating layer therebetween, and wherein the second light-emitting element overlaps with the second optical adjustment layer with the first insulating layer therebetween.
Assignees
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Classifications
comprising reflective means · CPC title
comprising a resonant cavity structure, e.g. Bragg reflector pair · CPC title
Multilayers, e.g. transparent multilayers · CPC title
Interconnections, e.g. wiring lines or terminals · CPC title
- H10K50/856Primary
comprising reflective means · CPC title
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- What does patent US2025151512A1 cover?
- A high-resolution display device is provided. The display device includes a plurality of light-emitting units emitting light of different colors. The light-emitting unit has a microcavity structure and intensifies light with a specific wavelength. In the light-emitting units emitting light of different colors, reflective layers with different thicknesses are formed, an insulating layer is forme…
- Who is the assignee on this patent?
- Semiconductor Energy Lab
- What technology area does this patent fall under?
- Primary CPC classification H10K50/856. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu May 08 2025 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).