Translucent conductive substrate for organic light emitting devices
US-9222641-B2 · Dec 29, 2015 · US
Compound optical film
US9170352B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9170352-B2 |
| Application number | US-201213556224-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 24, 2012 |
| Priority date | Aug 3, 2011 |
| Publication date | Oct 27, 2015 |
| Grant date | Oct 27, 2015 |
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- Title
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- Abstract
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Abstract
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A compound optical film includes an unitary two-layer structure with of a light guide layer and a light reflective layer attached on the light guide layer. A number of light scattering particles are dispersed in the light guide layer adjacent to an interface between the light guide layer and the light reflective layer. The compound optical film can reduce the thickness of backlight module while the compound optical film is used in backlight module.
First claim
Opening claim text (preview).
What is claimed is: 1. A compound optical film comprising an unitary two-layer structure consisting of a light guide layer and a light reflective layer attached on the light guide layer; the light guide layer comprises a light incident surface, a first contact surface adjoining the light incident surface, and a light emitting surface adjoining the light incident surface and facing away from the first contact surface; the light reflective layer comprises a second contact surface in contact with the first contact surface and a bottom surface facing away from the second contact surface; and a plurality of light scattering particles formed on the light reflective layer, and all of the light scattering particles contacting the second contact surface. 2. The compound optical film of claim 1 , wherein a distribution density of the light scattering particles gradually increases along a direction away from the light incident surface. 3. The compound optical film of claim 1 , wherein a material of the light guide layer is selected from the group consisting of Polymethyl Methacrylate (PMMA), Cocio Olefines Polymers (COP), and Polycarbonate (PC).
Assignees
Inventors
Classifications
Light guides · CPC title
- G02B5/0242Primary
by means of dispersed particles · CPC title
with positional variation of the diffusing properties, e.g. gradient or patterned diffuser · CPC title
- G02B5/0268Primary
characterized by the fabrication or manufacturing method · CPC title
Light guides, optical cables · CPC title
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Frequently asked questions
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- What does patent US9170352B2 cover?
- A compound optical film includes an unitary two-layer structure with of a light guide layer and a light reflective layer attached on the light guide layer. A number of light scattering particles are dispersed in the light guide layer adjacent to an interface between the light guide layer and the light reflective layer. The compound optical film can reduce the thickness of backlight module while…
- Who is the assignee on this patent?
- Lin Da-Wei, Yu Tai-Cherng, Hon Hai Prec Ind Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G02B5/0242. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Oct 27 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).