Title:
PLANAR LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/034111
Kind Code:
A1
Abstract:
A planar light source device (2) comprises: a first light source (31); a first light guide member (51) having a cross sectional shape tapered toward the first light source (31); a light guide plate (40) through which a ray of light outputted from the first light guide member (51) passes; and a light control sheet (20) that changes the direction of the ray of light that entered from the light guide plate (40).
Inventors:
SAWANAKA TOMOHIKO (JP)
SOYAMA SHUNSUKE (JP)
SOYAMA SHUNSUKE (JP)
Application Number:
PCT/JP2022/030709
Publication Date:
February 15, 2024
Filing Date:
August 12, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F21S2/00
Domestic Patent References:
| WO2013035788A1 | 2013-03-14 |
Foreign References:
| JP2008198615A | 2008-08-28 | |||
| JPH09292531A | 1997-11-11 | |||
| JP2006140125A | 2006-06-01 |
Attorney, Agent or Firm:
YAMAGATA Yoichi et al. (JP)
Download PDF: