Title:
OPTICAL FILM FOR MINI LED OR MICRO LED BACKLIGHT UNIT
Document Type and Number:
WIPO Patent Application WO/2020/153678
Kind Code:
A1
Abstract:
Disclosed is an optical film for forming white light by transmitting light radiating from a mini light emitting diode (LED) or a micro LED. The optical film may comprise: a first base film and a second base film disposed so as to be parallel to each other; and a color conversion layer disposed between the first base film and the second base film, and comprising, at a predefined weight ratio, a red phosphor, a green phosphor, and inorganic particles for inducing the uniform scattering of light. Here, the predefined weight ratio may be defined as the ratio between the weight of the red phosphor, the weight of the green phosphor and the weight of the inorganic particles, the weight ratio being determined on the basis of a color coordinate value of white light. In addition, the weight ratio of the red phosphor may be defined so as to be greater than the weight ratio of the green phosphor, and the weight ratio of the green phosphor may be defined so as to be greater than the weight ratio of the inorganic particles.
Inventors:
KIM JIN HWAN (KR)
CHO SUNG SIK (KR)
KIM YOUNG MAN (KR)
KIM WON IL (KR)
CHO SUNG SIK (KR)
KIM YOUNG MAN (KR)
KIM WON IL (KR)
Application Number:
PCT/KR2020/000904
Publication Date:
July 30, 2020
Filing Date:
January 20, 2020
Export Citation:
Assignee:
LMS CO LTD (KR)
International Classes:
G02B5/02; F21V8/00
Foreign References:
| KR20160001568A | 2016-01-06 | |||
| KR20180044465A | 2018-05-03 | |||
| KR20150067588A | 2015-06-18 | |||
| KR101746722B1 | 2017-06-13 | |||
| KR101873099B1 | 2018-06-29 |
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