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1. WO2020008912 - PHOTOCURABLE INK FOR OPTICAL SHEET

Publication Number WO/2020/008912
Publication Date 09.01.2020
International Application No. PCT/JP2019/024676
International Filing Date 21.06.2019
IPC
[IPC code unknown for C09D 11/101]
[IPC code unknown for B32B 7/023]
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
30
comprising vinyl resin; comprising acrylic resin
[IPC code unknown for C09D 11/106]
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
S
NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF
2
Systems of lighting devices, not provided for in main groups F21S4/-F21S10/119
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
3
Globes; Bowls; Cover glasses
[IPC code unknown for F21V 3/10]
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
02
Diffusing elements; Afocal elements
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333
Constructional arrangements
1335
Structural association of optical devices, e.g. polarisers, reflectors, with the cell
[IPC code unknown for ERROR IPC Code incorrect: invalid subgroup (0=>999999)!]
C09D 11/101 (2014.01)
B32B 7/023 (2019.01)
B32B 27/30 (2006.01)
C09D 11/106 (2014.01)
F21S 2/00 (2016.01)
F21V 3/00 (2015.01)
CPC
B32B 27/30
B32B 7/023
C09D 11/101
C09D 11/106
F21S 2/00
F21V 3/00
Applicants
  • JNC株式会社 JNC CORPORATION [JP/JP]; 東京都千代田区大手町二丁目2番1号 2-1, Otemachi 2-chome, Chiyoda-ku, Tokyo 1008105, JP
Inventors
  • 吉富 康亮 YOSHITOMI Kohsuke; JP
  • 杉原 克幸 SUGIHARA Katsuyuki; JP
  • 菊地 彩子 KIKUCHI Ayako; JP
Priority Data
2018-12624402.07.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) PHOTOCURABLE INK FOR OPTICAL SHEET
(FR) ENCRE PHOTODURCISSABLE DESTINÉE À UNE FEUILLE OPTIQUE
(JA) 光学シート用光硬化性インク
Abstract
(EN)
To provide a photocurable ink which has excellent adhesion to a polyethylene terephthalate film not treated for easy bonding, and in which discoloration of a cured product thereof in a high-temperature and high-humidity (65°C and 95% RH) atmosphere is suppressed. The present invention is: a photocurable ink containing a polymer (A) obtained by polymerizing at least one species of (meth)acrylate having a ring structure, a polyfunctional (meth)acrylate (B), and a photopolymerization initiator (D); a cured film comprising a cured product of the photocurable ink; an optical sheet having the cured film; a backlight unit having the optical sheet; and a liquid crystal display element in which the backlight unit is mounted.
(FR)
L'invention vise à fournir une encre photodurcissable qui possède une excellente adhérence à un film de poly(téréphtalate d'éthylène) non traité pour faciliter le collage, et qui permet de supprimer le changement de couleur d'un produit durci correspondant, dans une atmosphère à température élevée et à humidité élevée (65 °C et 95 % d'humidité relative). La présente invention porte sur : une encre photodurcissable contenant un polymère (A) obtenu par polymérisation d'au moins une espèce de (méth)acrylate possédant une structure cyclique, un (méth)acrylate polyfonctionnel (B) et un amorceur de photopolymérisation (D) ; un film durci comprenant un produit durci de l'encre photodurcissable ; une feuille optique possédant le film durci ; une unité de rétro-éclairage possédant la feuille optique ; et un dispositif d'affichage à cristaux liquides dans lequel est montée l'unité de rétro-éclairage.
(JA)
易接着処理されていないポリエチレンテレフタレートフィルムに対して密着性に優れ、且つ高温高湿(65℃、95%RH)雰囲気における硬化物の黄変が抑制された光硬化性インクを提供すること。 環構造を有する(メタ)アクリレートを少なくとも1種を重合させて得られる重合体(A)、多官能(メタ)アクリレート(B)および光重合開始剤(D)を含有する光硬化性インク、該光硬化性インクの硬化物からなる硬化膜、該硬化膜を有する光学シート、該光学シートを有するバックライトユニット、および該バックライトユニットを搭載した液晶表示素子。
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