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Composite quantum dot optical film comprising first and second optical prism films
US12411271B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12411271-B2 |
| Application number | US-202117536131-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 29, 2021 |
| Priority date | Aug 9, 2021 |
| Publication date | Sep 9, 2025 |
| Grant date | Sep 9, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
The present invention discloses a quantum-dot composite film comprising: a quantum-dot prism film, comprising a quantum-dot layer and a first plurality of prisms disposed over the quantum-dot layer, wherein a first optical prism film and a second optical prism film are disposed over the quantum-dot prism film for increasing the brightness level of the quantum-dot prism film.
First claim
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What is claimed is: 1. A quantum-dot composite film, comprising: a quantum-dot prism film, comprising a quantum-dot layer and a first plurality of prisms disposed over the quantum-dot layer; a first optical prism film, comprising a second plurality of prisms on a first side of the first optical prism film and a first adhesive layer disposed on a second side of the first optical prism film that is opposite to the first side of the first optical prism film; and a second optical prism film, comprising a third plurality of prisms on a first side of the second optical prism film and a second adhesive layer disposed on a second side of the second optical prism film that is opposite to the first side of the second optical prism film, wherein a top part of the first plurality of prisms is embedded in the first adhesive layer, and a top part of the second plurality of prisms is embedded in the second adhesive layer, wherein a gap between every two adjacent prisms of the quantum-dot prism film is between 20-60 um; a gap between every two adjacent prisms of the first optical prism film is between 12-50 um; and a gap between every two adjacent prisms of the second optical prism film is between 29-58 um. 2. The quantum-dot composite film according to claim 1 , wherein the quantum-dot prism film comprises a first substrate and a second substrate, wherein the quantum-dot layer is disposed between the first substrate and the second substrate, and the first plurality of prisms are disposed on the first substrate. 3. The quantum-dot composite film according to claim 1 , wherein a thickness of the quantum-dot layer is in a range of 60-350 um. 4. The quantum-dot composite film according to claim 1 , wherein a thickness of the quantum-dot prism film is in a range of 70-380 um. 5. The quantum-dot composite film according to claim 1 , wherein a third adhesive layer is disposed on the quantum-dot layer, wherein the first plurality of prisms are adhered to the third adhesive layer. 6. The quantum-dot composite film according to claim 1 , wherein each of the first optical prism film and the second optical prism film is composed of a PET substrate, and the thickness of the PET substrate is between 25-188 um. 7. The quantum-dot composite film according to claim 1 , wherein the first optical prism film and the second optical prism film are formed as an optical composite prism film that has a total thickness in a range of 70 um-430 um. 8. The quantum-dot composite film according to claim 1 , wherein the quantum-dot layer comprises a plurality of quantum dots and a plurality of diffusing particles. 9. The quantum-dot composite film according to claim 8 , wherein the plurality of quantum dots are capable of being water-resistant and oxygen-resistant. 10. A quantum-dot composite film, comprising: a quantum-dot prism film, comprising a quantum-dot layer, a first substrate, a second substrate, and a first plurality of prisms, wherein the quantum-dot layer is disposed between the first substrate and the second substrate, and the first plurality of prisms are disposed on the first substrate; a first optical prism film, comprising a second plurality of prisms on a first side of the first optical prism film and a first adhesive layer disposed on a second side of the first optical prism film that is opposite to the first side of the first optical prism film; and a second optical prism film, comprising a third plurality of prisms on a first side of the second optical prism film and a second adhesive layer disposed on a second side of the second optical prism film that is opposite to the first side of the second optical prism film, wherein a top part of the first plurality of prisms is embedded in the first adhesive layer, and a top part of the second plurality of prisms is embedded in the second adhesive layer, wherein a gap between every two adjacent prisms of the quantum-dot prism film is between 20-60 um; a gap between every two adjacent prisms of the first optical prism film is between 12-50 um; and a gap between every two adjacent prisms of the second optical prism film is between 29-58 um. 11. The quantum-dot composite film according to claim 10 , wherein a thickness of the quantum-dot layer is in a range of 60-350 um. 12. The quantum-dot composite film according to claim 10 , wherein a thickness of the quantum-dot prism film is in a range of 70-380 um. 13. The quantum-dot composite film according to claim 10 , wherein a third adhesive layer is disposed on the quantum-dot layer, wherein the first plurality of prisms are adhered to the third adhesive layer. 14. The quantum-dot composite film according to claim 10 , wherein each of the first optical prism film and the second optical prism film is composed of a PET substrate, and the thickness of the PET substrate is between 25-188 um. 15. The quantum-dot composite film according to claim 10 , wherein the first optical prism film and the second optical prism film are formed as an optical composite prism film that has a total thickness in a range of 70 um-430 um.
Assignees
Inventors
Classifications
by means of dispersed particles · CPC title
Dimensional properties · CPC title
Optical elements · CPC title
Bright, glossy, shiny surface · CPC title
Non-permeable · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12411271B2 cover?
- The present invention discloses a quantum-dot composite film comprising: a quantum-dot prism film, comprising a quantum-dot layer and a first plurality of prisms disposed over the quantum-dot layer, wherein a first optical prism film and a second optical prism film are disposed over the quantum-dot prism film for increasing the brightness level of the quantum-dot prism film.
- Who is the assignee on this patent?
- Ubright Optronics Corp
- What technology area does this patent fall under?
- Primary CPC classification G02B5/045. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Sep 09 2025 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).