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1. WO2020004303 - POLARIZER AND IMAGE DISPLAY DEVICE

Publication Number WO/2020/004303
Publication Date 02.01.2020
International Application No. PCT/JP2019/024891
International Filing Date 24.06.2019
IPC
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
30
Polarising 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
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9
Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30
in which the desired character or characters are formed by combining individual elements
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27
Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28
including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32
with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51
Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50
specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33
Electroluminescent light sources
02
Details
G02B 5/30 (2006.01)
G02F 1/1335 (2006.01)
G09F 9/30 (2006.01)
H01L 27/32 (2006.01)
H01L 51/50 (2006.01)
H05B 33/02 (2006.01)
CPC
G02B 5/30
G02F 1/1335
G09F 9/30
H01L 27/32
H01L 51/50
H05B 33/02
Applicants
  • 富士フイルム株式会社 FUJIFILM CORPORATION [JP/JP]; 東京都港区西麻布2丁目26番30号 26-30, Nishiazabu 2-chome, Minato-ku, Tokyo 1068620, JP
Inventors
  • 星野 渉 HOSHINO Wataru; JP
  • 山下 達也 YAMASHITA Tatsuya; JP
  • 多田 志保 TADA Shiho; JP
  • 林 直毅 HAYASHI Naoki; JP
  • 笠原 健裕 KASAHARA Takehiro; JP
Agents
  • 伊東 秀明 ITOH Hideaki; JP
  • 三橋 史生 MITSUHASHI Fumio; JP
Priority Data
2018-12244927.06.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) POLARIZER AND IMAGE DISPLAY DEVICE
(FR) POLARISEUR ET DISPOSITIF D'AFFICHAGE D'IMAGE
(JA) 偏光子、および、画像表示装置
Abstract
(EN)
The present invention addresses the problem of providing a polarizer having a high degree of orientation, and an image display device using the polarizer. The problem is solved by a polarizer formed from a polarizer-forming composition containing a liquid crystalline compound and a dichroic material, wherein the liquid crystalline compound and the dichroic material are horizontally oriented, aggregates are observed on a surface observed by a scanning electron microscope, and when the length of the long axis of the aggregates is L and the length of the short axis thereof is D, the number of needle-shaped aggregates satisfying L ≥ 300 nm and L/D > 2 is 15 or more per 40 μm2, and the number of needle-shaped aggregates satisfying L ≤ 500 nm is 80% or more.
(FR)
La présente invention vise à régler le problème de la fourniture d'un polariseur à haut degré d'orientation et d'un dispositif d'affichage d'image utilisant le polariseur. Le problème est réglé au moyen d'un polariseur en une composition de formation de polariseur contenant un composé cristallin liquide et un matériau dichroïque. Le composé cristallin liquide et le matériau dichroïque sont orientés horizontalement. Des agrégats sont visibles sur une surface observée par un microscope électronique à balayage. Si la longueur de l'axe long des agrégats est L et la longueur de leur axe court D, le nombre d'agrégats en forme d'aiguille satisfaisant L ≥ 300 nm et L/D > 2 est supérieur ou égal à 15 pour 40 μm2 et le nombre d'agrégats en forme d'aiguille satisfaisant L ≤ 500 nm est supérieur ou égal à 80 %.
(JA)
配向度の高い偏光子、および、この偏光子を用いる画像表示装置の提供を課題とする。液晶性化合物と二色性物質とを含有する偏光子形成用組成物から形成される偏光子であって、液晶性化合物および二色性物質が水平配向され、走査型電子顕微鏡で観察した表面で凝集体が観察され、凝集体の長軸の長さをL、短軸の長さをDとした際に、L≧300nmおよびL/D>2を満たす針状凝集体が、40μm2当たり15個以上で、L≦500nmを満たす針状凝集体の数が80%以上であることにより、課題を解決する。
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