Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PHOSPHOR-CONTAINING FILM AND BACKLIGHT UNIT
Document Type and Number:
WIPO Patent Application WO/2018/043616
Kind Code:
A1
Abstract:
Provided is a phosphor-containing film which is able to be suppressed in deterioration of a phosphor, and which is able to be suppressed in formation of bright dots due to deficits of a resin layer and in decrease of the luminance. This phosphor-containing film comprises: a phosphor-containing layer comprising a resin layer which has impermeability with respect to oxygen and is provided with a plurality of discretely arranged recesses, and a plurality of fluorescent regions, each of which is arranged in a recess of the resin layer and contains a phosphor that is deteriorated through a reaction with oxygen when exposed to oxygen; and a first substrate film and a second substrate film, which are respectively laminated on one main surface and the other main surface of the phosphor-containing layer. The fluorescent regions contain a binder and quantum dots serving as the phosphor. The resin layer has an elastic modulus of from 0.5 GPa to 10 GPa (inclusive); the recesses of the resin layer have a depth h of from 1 μm to 100 μm (inclusive); the width t between adjacent fluorescent regions is from 5 μm to 300 μm (inclusive); and the aspect ratio between the depth h and the width t between adjacent fluorescent regions, namely h/t is 3.0 or less.

Inventors:
OBA Tatsuya (210 Nakanuma, Minami-ashigara-sh, Kanagawa 93, 〒2500193, JP)
CHIKUSHI Natsuru (210 Nakanuma, Minami-ashigara-sh, Kanagawa 93, 〒2500193, JP)
KAKISHITA Kenichi (210 Nakanuma, Minami-ashigara-sh, Kanagawa 93, 〒2500193, JP)
KUSUMOTO Masayuki (210 Nakanuma, Minami-ashigara-sh, Kanagawa 93, 〒2500193, JP)
SATAKE Ryo (210 Nakanuma, Minami-ashigara-sh, Kanagawa 93, 〒2500193, JP)
SEKIGUCHI Megumi (210 Nakanuma, Minami-ashigara-sh, Kanagawa 93, 〒2500193, JP)
Application Number:
JP2017/031278
Publication Date:
March 08, 2018
Filing Date:
August 30, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJIFILM CORPORATION (26-30, Nishiazabu 2-chome Minato-k, Tokyo 20, 〒1068620, JP)
International Classes:
G02B5/20; F21S2/00; G02F1/13357; H01L33/50; F21Y115/10
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (Yusen Iwamoto-cho Bldg. 6F, 3-3 Iwamoto-cho 2-chome, Chiyoda-k, Tokyo 32, 〒1010032, JP)
Download PDF: