Title:
BACKLIGHT UNIT USING SEMICONDUCTOR LIGHT-EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2020/251131
Kind Code:
A1
Abstract:
The present invention provides a backlight unit comprising: a base substrate; a partition wall disposed on the base substrate and including a plurality of grooves formed thereon; a semiconductor light-emitting element mounted on the base substrate and disposed inside each of the grooves; a fluorescent substance layer formed inside the groove to cover the semiconductor light-emitting element and absorbing light of a predetermined wavelength band so as to emit light of a wavelength band which is different from the light of the predetermined wavelength band; a light diffusion layer disposed above the fluorescent substance layer to diffuse the light; and a spacer disposed between the partition wall and the light diffusion layer, wherein the spacer comprises a body part attached to the partition wall, and a protruding part protruding toward the light diffusion layer and attached to the light diffusion layer, such that the light diffusion layer and the fluorescent substance layer are spaced apart from each other.
Inventors:
LEE HYUNHO (KR)
KIM WOOTAE (KR)
JEONG MOONGI (KR)
LEE CHANGGUK (KR)
LEE JINSEOK (KR)
KIM WOOTAE (KR)
JEONG MOONGI (KR)
LEE CHANGGUK (KR)
LEE JINSEOK (KR)
Application Number:
PCT/KR2020/001694
Publication Date:
December 17, 2020
Filing Date:
February 06, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
G02F1/13357
Foreign References:
| KR20170061535A | 2017-06-05 | |||
| US20170139276A1 | 2017-05-18 | |||
| KR20140021358A | 2014-02-20 | |||
| KR20160076346A | 2016-06-30 | |||
| KR100622183B1 | 2006-09-14 |
Attorney, Agent or Firm:
PARK, Jang-Won (KR)
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