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1. WO2022045185 - CIRCULARLY POLARIZING PLATE, ORGANIC ELECTROLUMINESCENCE DISPLAY DEVICE, AND DISPLAY DEVICE

Publication Number WO/2022/045185
Publication Date 03.03.2022
International Application No. PCT/JP2021/031140
International Filing Date 25.08.2021
IPC
G02B 5/30 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
G09F 9/00 2006.1
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
G09F 9/30 2006.1
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30in which the desired character or characters are formed by combining individual elements
H01L 27/32 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
G02F 1/13363 2006.1
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13363Birefringent elements, e.g. for optical compensation
G02F 1/1337 2006.1
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
CPC
G02B 5/30
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
G02F 1/13363
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13363Birefringent elements, e.g. for optical compensation
G02F 1/1337
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
G09F 9/00
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
G09F 9/30
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30in which the desired character or characters are formed by combining individual elements
H01L 27/32
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
Applicants
  • 富士フイルム株式会社 FUJIFILM CORPORATION [JP]/[JP]
Inventors
  • 久門 義明 HISAKADO Yoshiaki
  • 高橋 勇太 TAKAHASHI Yuta
  • 吉田 慎平 YOSHIDA Shinpei
Agents
  • 伊東 秀明 ITOH Hideaki
  • 三橋 史生 MITSUHASHI Fumio
Priority Data
2020-14154825.08.2020JP
2020-15762618.09.2020JP
2020-15767218.09.2020JP
2021-00940025.01.2021JP
2021-00940225.01.2021JP
2021-02606722.02.2021JP
2021-03845710.03.2021JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) CIRCULARLY POLARIZING PLATE, ORGANIC ELECTROLUMINESCENCE DISPLAY DEVICE, AND DISPLAY DEVICE
(FR) PLAQUE DE POLARISATION CIRCULAIRE, DISPOSITIF D'AFFICHAGE ÉLECTROLUMINESCENT ORGANIQUE ET DISPOSITIF D'AFFICHAGE
(JA) 円偏光板、有機エレクトロルミネッセンス表示装置、表示装置
Abstract
(EN) Provided is a circularly polarizing plate in which color unevenness in the oblique direction can be suppressed and color unevenness in the oblique direction is unlikely to occur over time in application to an organic EL display device (in particular, a curved display and an in-vehicle display having a high aspect ratio), and also provided are an organic electroluminescence display device and an optical device. The circularly polarizing plate according to the present invention includes a polarizing element and a retardation film laminated on one surface side of the polarizing element, wherein the water content of the retardation film is 1.8% or less; the circularly polarizing plate and an aluminum sheet are bonded together so that the retardation film in the circularly polarizing plate faces the aluminum sheet; where a chromaticity a* and a chromaticity b* are measured at all azimuth angles and a polar angle of 40° from the normal direction of the circularly polarizing plate of the obtained laminated body, the absolute value of the chromaticity a* and the absolute value of the chromaticity b* are 10 or less at any of the azimuth angles; and where a reflectance is measured at all azimuth angles and a polar angle of 40° from the normal direction of the circularly polarizing plate of the laminated body, the reflectance is 3.0% or less at any of the azimuth angles.
(FR) L'invention concerne une plaque de polarisation circulaire dans laquelle une irrégularité de couleur dans la direction oblique peut être supprimée et une irrégularité de couleur dans la direction oblique est peu susceptible de se produire dans le temps lors de l'application à un dispositif d'affichage électroluminescent organique (en particulier, un affichage incurvé et un affichage embarqué ayant un rapport d'aspect élevé), ainsi qu'un dispositif d'affichage électroluminescent organique et un dispositif optique. La plaque de polarisation circulaire selon la présente invention comprend un élément de polarisation et un film de retard stratifié sur un côté de surface de l'élément de polarisation, la teneur en eau du film de retard étant de 1,8 % ou moins ; la plaque de polarisation circulaire et une feuille d'aluminium sont liées ensemble de telle sorte que le film de retard dans la plaque de polarisation circulaire fait face à la feuille d'aluminium ; où une chromaticité a* et une chromaticité b* sont mesurées à tous les angles d'azimut et un angle polaire de 40° par rapport à la direction normale de la plaque de polarisation circulaire du corps stratifié obtenu, la valeur absolue de la chromaticité a* et la valeur absolue de la chromaticité b* sont inférieures ou égales à 10 à l'un quelconque des angles d'azimut ; et où un facteur de réflexion est mesuré à tous les angles d'azimut et un angle polaire de 40° par rapport à la direction normale de la plaque de polarisation circulaire du corps stratifié, la réflectance est inférieure ou égale à 3,0 % à l'un quelconque des angles d'azimut.
(JA) 有機EL表示装置(特に、曲面ディスプレイおよび高アスペクト比の車載用ディスプレイ)に適用した際に、斜め方向における色味ムラが抑制でき、かつ、上記斜め方向における色味ムラが経時によっても生じにくい、円偏光板、有機エレクトロルミネッセンス表示装置および光学装置を提供する。本発明の円偏光板は、偏光子と、偏光子の一方の表面側に積層されている位相差フィルムとを含む、円偏光板であって、位相差フィルムの含水率が1.8%以下であり、円偏光板中の位相差フィルムがアルミシートと対向するように、円偏光板とアルミシートとを貼合し、得られた積層体の円偏光板の法線方向から極角40°の全方位角での色度aおよび色度bを測定した際に、いずれの方位角においても色度aの絶対値および色度bの絶対値が10以下であり、積層体の円偏光板の法線方向から極角40°の全方位角での反射率を測定した際に、いずれの方位角においても反射率が3.0%以下である、円偏光板である。
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