Planar illumination device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 6, 2018
Issued Date -
N/A
app pub date -
May 16, 2016
filing date -
May 22, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A planar illumination device according to an embodiment, including: a light guiding plate having one of a pair of opposite principal surfaces serving as a light emission surface; a light source arranged at a side surface connecting end edges of the pair of principal surfaces of the light guiding plate; and a frame, in which the light guiding plate is arranged. The frame is formed of plural frame members arranged along side surfaces of the light guiding plate. The plural frame members are configured to include a resin frame member and a metal frame member, and to have a joint portion between the resin frame member and the metal frame member, the joint portion arranged at end portions of the resin frame member and the metal frame member.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2016 Application Filing Year
- F21V Class
- 4134 Applications Filed
- 3005 Patents Issued To-Date
- 72.69 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F21V Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 6, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 6, 2029 |
