Lamp for vehicle and vehicle including the same
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Optical plate and tiled display apparatus having the same
US8958152B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8958152-B2 |
| Application number | US-201113219338-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 26, 2011 |
| Priority date | Sep 9, 2010 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
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An optical plate and a tiled display apparatus having the optical plate of the present invention include a base substrate and a Fresnel lens having a plurality of Fresnel patterns protruding toward the base substrate from a flat upper surface. The optical plate further comprises an anti-reflection layer, and a high-refraction layer having a refractive index higher than that of the anti-reflection layer. The optical plate comprises an adhesive layer disposed between the Fresnel lens and the base substrate to affix the Fresnel lens to the base substrate, and a spacer disposed between the Fresnel lens and the adhesive layer to maintain a distance between the Fresnel lens and the adhesive layer. The base substrate includes a first portion having a first thickness, a second portion having a second thickness thinner than the first thickness and a connecting portion disposed between the first and second portions.
First claim
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What is claimed is: 1. An optical plate comprising: a base substrate into which an image is to be directed; a Fresnel lens affixed to an upper surface of the base substrate, the Fresnel lens having a plurality of Fresnel patterns extending toward the base substrate; and an anti-reflection layer formed on an upper surface of the Fresnel lens and configured to reduce a reflection of ambient light; wherein the optical plate is configured to include: a peripheral portion having…
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- What does patent US8958152B2 cover?
- An optical plate and a tiled display apparatus having the optical plate of the present invention include a base substrate and a Fresnel lens having a plurality of Fresnel patterns protruding toward the base substrate from a flat upper surface. The optical plate further comprises an anti-reflection layer, and a high-refraction layer having a refractive index higher than that of the anti-reflecti…
- Who is the assignee on this patent?
- Kim Joong-Hyun, Lee Sang-Hoon, Song Min-Young, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification G02B3/08. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 17 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).