Title:
PLANAR LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/100304
Kind Code:
A1
Abstract:
A planar light-emitting device 1 is provided with: a base member 3 to which a light source 2 is mounted; a cover member 4 which covers the base member 3 and is provided with a display unit illuminated by light emitted from the light source 2; and a diffusion sheet 6 which is disposed in an internal space 10, formed by the base member 3 and the cover member 4, substantially in parallel to the base member 3 without contacting the cover member 4, and which has a diffusion pattern 60 for diffusing light substantially centered directly above the light source 2.
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Inventors:
NAGASHITA KOSUKE (JP)
IWAZAKI HIROKI (JP)
HASEGAWA MOYU (JP)
IWAZAKI HIROKI (JP)
HASEGAWA MOYU (JP)
Application Number:
PCT/JP2018/042510
Publication Date:
May 22, 2020
Filing Date:
November 16, 2018
Export Citation:
Assignee:
KOHA CO LTD (JP)
International Classes:
H01L33/58; F21S2/00; G09F9/33; F21Y115/10
Domestic Patent References:
| WO2013111338A1 | 2013-08-01 |
Foreign References:
| JPS62126856U | 1987-08-12 | |||
| JP2009301738A | 2009-12-24 | |||
| JP2010508544A | 2010-03-18 | |||
| JP2012234729A | 2012-11-29 | |||
| JP2014143113A | 2014-08-07 | |||
| US20170317243A1 | 2017-11-02 |
Attorney, Agent or Firm:
HIRATA & PARTNERS (JP)
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