Title:
PLANAR ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/009525
Kind Code:
A1
Abstract:
A planar illumination device (1) of one embodiment comprises: a bottom frame (3); a recess (7b); a center pin (11); and a fixing part. The bottom frame (3): has a floor section (3a) and a side wall (3b) which is erected on a peripheral edge of the floor section (3a); and accommodates a light guide plate (7).
The recess (7b) is provided in approximately the center of the light incidence side of the light guide plate (7).
The center pin (11) is erected on the floor section (3a), and is fit with the recess (7b). The fixing part fixes the light guide plate (7) to the bottom frame (3) within the range of a predetermined distance from the center pin (11) on the light incidence side of the light guide plate (7).
Inventors:
ADACHI KAZUMASA (JP)
KURATA RYOTA (JP)
KURATA RYOTA (JP)
Application Number:
PCT/JP2021/018548
Publication Date:
January 13, 2022
Filing Date:
May 17, 2021
Export Citation:
Assignee:
MINEBEA MITSUMI INC (JP)
International Classes:
F21S2/00; G02F1/1333; G02F1/13357; F21Y105/00; F21Y115/10
Domestic Patent References:
| WO2012020592A1 | 2012-02-16 | |||
| WO2014073425A1 | 2014-05-15 |
Foreign References:
| JP2017117520A | 2017-06-29 |
Attorney, Agent or Firm:
TORANOMON INTELLECTUAL PROPERTY FIRM (JP)
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