See-through computer display systems
US-2024210705-A1 · Jun 27, 2024 · US
Planar light source
US9703032B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9703032-B2 |
| Application number | US-201414297630-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 6, 2014 |
| Priority date | Jun 19, 2013 |
| Publication date | Jul 11, 2017 |
| Grant date | Jul 11, 2017 |
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- Title
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- Abstract
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Abstract
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A planar light source including a light guide plate (LGP) and a light source device is provided. The LGP includes a plate portion and at least one prism portion. The plate portion has a light incident surface, a reflective surface, a bottom surface, and a light exiting surface. The prism portion is disposed on the bottom surface of the plate portion, and has a first plane and a second plane. An included angle between the first plane and the bottom surface is smaller than an included angle between the second plane and the bottom surface, and a shortest distance between the first plane and the light incident surface is smaller than a shortest distance between the second plane and the light incident surface. The light source device is disposed adjacent to the light incident surface. The disclosure provides planar light source with good light uniformity.
First claim
Opening claim text (preview).
What is claimed is: 1. A planar light source, comprising: a light guide plate, comprising: a plate portion, having a light incident surface, a reflective surface opposite to the light incident surface, a bottom surface, and a light exiting surface opposite to the bottom surface, wherein the light incident surface and the reflective surface are respectively connected to the bottom surface and the light exiting surface, and a height of the light incident surface, a height of the re…
Assignees
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Classifications
Physics · mapped topic
Physics · mapped topic
- G02B6/0055Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9703032B2 cover?
- A planar light source including a light guide plate (LGP) and a light source device is provided. The LGP includes a plate portion and at least one prism portion. The plate portion has a light incident surface, a reflective surface, a bottom surface, and a light exiting surface. The prism portion is disposed on the bottom surface of the plate portion, and has a first plane and a second plane. An…
- Who is the assignee on this patent?
- Wu Jhong-Hao, Liu Chin-Ku, Young Lighting Technology Inc
- What technology area does this patent fall under?
- Primary CPC classification G02B6/0055. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 11 2017 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).