Display device
US-2024385479-A1 · Nov 21, 2024 · US
Planar illumination device and method of producing same
US8992064B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8992064-B2 |
| Application number | US-201213435301-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 30, 2012 |
| Priority date | Nov 25, 2011 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A planar illumination device includes a light source unit, including a substantially planar emitting surface, configured to emit light to illuminate a substantially planar object, and a frame, formed in a frame shape enclosing the light source unit, disposed on an outer circumferential side of the light source unit, configured to hold the light source unit. The frame includes a reflecting part configured to reflect the light, and an absorbing part, formed integral with at least a part of an outer circumferential surface of the reflecting part, configured to absorb the light. The reflecting part and the absorbing part include joint interface therebetween that is inclined to a direction vertical to the emitting surface.
First claim
Opening claim text (preview).
The invention claimed is: 1. A planar illumination device comprising a light source unit and a frame formed in a frame shape and enclosing the light source unit, the light source unit comprising: a substantially planar emitting surface, configured to emit light to illuminate a substantially planar object; and a reflection sheet disposed on a side opposite to the emitting surface and configured to reflect the light; wherein the frame is disposed on an outer circumferential s…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G02F1/133608Primary
Physics · mapped topic
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- What does patent US8992064B2 cover?
- A planar illumination device includes a light source unit, including a substantially planar emitting surface, configured to emit light to illuminate a substantially planar object, and a frame, formed in a frame shape enclosing the light source unit, disposed on an outer circumferential side of the light source unit, configured to hold the light source unit. The frame includes a reflecting part …
- Who is the assignee on this patent?
- Horikawa Tomotaka, Totsuka Masahito, Kawai Shinji, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification G02F1/133608. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 31 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).