WO2014109489A1 - Affichage à cristaux liquides - Google Patents

Affichage à cristaux liquides Download PDF

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Publication number
WO2014109489A1
WO2014109489A1 PCT/KR2013/011746 KR2013011746W WO2014109489A1 WO 2014109489 A1 WO2014109489 A1 WO 2014109489A1 KR 2013011746 W KR2013011746 W KR 2013011746W WO 2014109489 A1 WO2014109489 A1 WO 2014109489A1
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WO
WIPO (PCT)
Prior art keywords
polarizer
polarizing plate
liquid crystal
crystal display
lower polarizer
Prior art date
Application number
PCT/KR2013/011746
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English (en)
Korean (ko)
Inventor
김민석
김나연
김준석
Original Assignee
동우화인켐 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 동우화인켐 주식회사 filed Critical 동우화인켐 주식회사
Priority to JP2015552567A priority Critical patent/JP2016504632A/ja
Priority to CN201380069847.9A priority patent/CN104919363A/zh
Publication of WO2014109489A1 publication Critical patent/WO2014109489A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements

Definitions

  • the present invention relates to a liquid crystal display device.
  • Liquid crystal display device is one of the image display devices, and has the advantage of realizing light and small size and low power consumption compared to the cathode ray tube (CRT) which is a typical image display device. Since CRTs are not devices that emit light by themselves, unlike CRTs, they require light sources other than liquid crystal panels, and fluorescent lamps are mainly used as light sources for liquid crystal display devices.
  • the lower polarizer and the upper polarizer are attached, respectively, The lower polarizer and the upper polarizer block or pass light from the lamp.
  • the polarizing plate has a structure including a pressure-sensitive adhesive layer for bonding to a liquid crystal cell on one side of a laminate including a first polarizer protective film, a polarizer and a second polarizer protective film, and a surface protective film on the other side.
  • a polarizing plate having the same configuration as the upper polarizing plate and the lower polarizing plate may be bonded to both surfaces of the liquid crystal cell.
  • polarizing plates having different characteristics as upper and lower polarizing plates have been applied.
  • a polarizer having a wide viewing angle compensation film, a functional coating layer (hard coating layer, an antistatic layer, an antireflection layer, etc.) or a laminate thereof is further applied to the upper polarizer in addition to the polarizer protective film on the viewing side of the polarizer.
  • the polarizing plate in addition to a polarizer protective film, the polarizing plate provided with the brightness improving film, a diffusion protective film, these laminated bodies, etc. are applied to the backlight unit side surface of a polarizer.
  • Functional films, coating layers or laminates for imparting these different properties have different physical properties such as material, thickness, stretching direction, and moisture permeability, respectively.
  • Conventional polarizers include a polyvinyl alcohol (PVA) film drawn in a direction and dyed with a dichroic dye as a polarizer, and the stretched PVA film shrinks in the stretching direction according to temperature or humidity change.
  • PVA polyvinyl alcohol
  • the shrinkage is increased due to the difference in their moisture permeability, which causes the liquid crystal panel to curl. The phenomenon occurs badly. As a result, light leakage may occur and cause a defect of the liquid crystal panel.
  • Korean Patent Laid-Open No. 2012-99172 discloses a polarizing plate, a method of manufacturing the same, and an image display apparatus using the same, but does not provide an alternative to the problem.
  • An object of the present invention is to provide a liquid crystal display device in which light leakage is suppressed by improving warpage.
  • An object of the present invention is to provide a liquid crystal display device in which the Newton ring phenomenon is suppressed.
  • An upper polarizing plate and a lower polarizing plate each comprising a polarizer having a protective film bonded to at least one surface, wherein a liquid crystal cell is disposed between the upper polarizing plate and the lower polarizing plate, the lower polarizing plate has at least one optical functional layer
  • the upper polarizer and the lower polarizer have absorption axes perpendicular to each other, the contracting force of the lower polarizer is 3.5 N / 2 mm or less, and the contracting force of the lower polarizer / shrinkage of the upper polarizer is 1 or less.
  • the lower polarizer is bonded to the lower surface of the liquid crystal cell, respectively.
  • the optical functional layer is a liquid crystal display device selected from the group consisting of a reflective polarization separation layer, a phase difference layer, an antireflection layer, a reflection layer and a brightness enhancement layer.
  • the present invention suppresses warping of a liquid crystal display device, in particular, warping of a CAP type, thereby suppressing occurrence of light leakage and Newton ring phenomenon.
  • FIG. 1 is a cross-sectional view showing an embodiment of a liquid crystal display of the present invention.
  • FIG. 2 is a warpage image of Example 1.
  • FIG. 3 is a light leakage image of Example 1.
  • the present invention includes an upper polarizing plate and a lower polarizing plate each including a polarizer having a protective film bonded to at least one surface, wherein a liquid crystal cell is disposed between the upper polarizing plate and the lower polarizing plate, and the lower polarizing plate has optical functionality on at least one surface.
  • the present invention relates to a liquid crystal display device capable of suppressing warpage of a liquid crystal display device, in particular, warping of a CAP type, thereby suppressing light leakage phenomenon and Newton ring phenomenon.
  • the liquid crystal display of the present invention includes an upper polarizing plate and a lower polarizing plate each including a polarizer having a protective film bonded to at least one surface, and a liquid crystal cell is disposed between the upper polarizing plate and the lower polarizing plate, and the lower polarizing plate is at least An optical functional layer is provided on one surface, and the upper polarizer and the lower polarizer are disposed such that absorption axes are perpendicular to each other.
  • FIG. 1 is a schematic cross-sectional view of an embodiment of a liquid crystal display of the present invention.
  • the upper polarizing plate 107 is a polarizing plate positioned so that the light emitted from the light source passes through the liquid crystal cell 103 and passes through the polarizing plate, and the lower polarizing plate 108 is the light emitted from the light source.
  • the upper polarizer 107 and the lower polarizer 108 are provided with protective films 101a, b; 104a, b bonded to at least one surface of the polarizers 102, 105, respectively.
  • the upper polarizer 102 and the lower polarizer 105 have a dichroic dye adsorbed on a polyvinyl alcohol-based film.
  • the polyvinyl alcohol resin constituting the polarizers 102 and 105 can be obtained by saponifying a polyvinyl acetate resin.
  • polyvinyl acetate type resin As polyvinyl acetate type resin, the copolymer etc. of vinyl acetate and the other monomer copolymerizable with this besides the polyvinyl acetate which is a homopolymer of vinyl acetate are mentioned.
  • an unsaturated carboxylic acid type an unsaturated sulfonic acid type, an olefin type, a vinyl ether type, an acrylamide type monomer which has an ammonium group, etc.
  • the polyvinyl alcohol resin may be modified, for example, polyvinyl formal, polyvinyl acetal, or the like modified with aldehydes may also be used.
  • the saponification degree of the polyvinyl alcohol-based resin is usually 85 to 100 mol%, preferably 98 mol% or more, and the polymerization degree is usually 1,000 to 10,000, preferably 1,500 to 5,000.
  • the film formation method of polyvinyl alcohol-type resin is not specifically limited, A well-known method can be used.
  • the film thickness of the polyvinyl alcohol based film is not particularly limited, and may be, for example, 10 to 150 ⁇ m.
  • the polarizers 102 and 105 are usually manufactured through the steps of swelling, dyeing, crosslinking, stretching, washing and drying the polyvinyl alcohol base film as described above.
  • the order, the number of repetitions, the process conditions, and the like of each process are not particularly limited as long as they do not depart from the object of the present invention, and some steps may be omitted as necessary.
  • the value of (shrinkage force of the lower polarizer) / (shrinkage force of the upper polarizer) is 1 or less, preferably 0.95 or less.
  • the contracting force of the lower polarizer 105 may be 3.5N / 2mm or less, preferably 3.4N / 2mm or less.
  • the contracting force of the lower polarizer 105 is within the above range, the effect of preventing the CAP type warpage may be maximized.
  • the method of controlling the contraction force of the polarizers 102 and 105 is not particularly limited and may be a conventional method used for controlling the contraction force in the art, for example, the draw ratio in the stretching step in the polarizer manufacturing process, performing the crosslinking step. It can be adjusted by the temperature, boric acid concentration of the aqueous solution for crosslinking.
  • the thickness of the polarizers 102 and 105 is not particularly limited, and may be, for example, 15 to 35 ⁇ m. The same thickness of the upper polarizer 102 and the lower polarizer 105 is preferable in view of efficiency and productivity improvement in the manufacturing process.
  • the thickness of the polarizers 102 and 105 may be adjusted by a method of changing the draw ratio and the total cumulative draw ratio in each step during manufacturing, or by using a thin film of polyvinyl alcohol-based raw film having a thin thickness.
  • the total cumulative draw ratio can be 4 to 8 times, preferably 4.5 to 7 times, more preferably 5 to 6.5 times.
  • the protective films 101a, b; 104a, b are not particularly limited as long as they are excellent in transparency, mechanical strength, thermal stability, moisture shielding, and isotropy.
  • polyester film such as polyethylene terephthalate, polyethylene isophthalate, polybutylene terephthalate; Cellulose films such as diacetyl cellulose and triacetyl cellulose; Polycarbonate film; Acrylic films such as polymethyl (meth) acrylate and polyethyl (meth) acrylate; Styrene films such as polystyrene and acrylonitrile-styrene copolymers; Polyolefin-based film; Vinyl chloride film; Polyamide films such as nylon and aromatic polyamides; Imide film; Sulfone film; Polyether ketone film; Sulfided polyphenylene-based films; Vinyl alcohol film; Vinylidene chloride-based film; Vinyl butyral film; Allylate film; Polyoxymethylene film; Urethane film; Ep
  • the protective films 101a and b; 104a and b may be films having an optical compensation function such as a retardation function.
  • Bonding may be made of an adhesive commonly used in the manufacture of polarizers in the art, and may be subjected to a drying step after bonding.
  • the drying temperature and time are not particularly limited, and for example, may be performed at 40 to 100 ° C. for 20 to 1200 seconds.
  • the upper polarizer 102 included in the upper polarizer 107 and the lower polarizer 105 included in the lower polarizer 108 are disposed such that absorption axes are perpendicular to each other.
  • the upper polarizer 102 may have a long side direction parallel to the stretching direction
  • the lower polarizer 105 may have a long side direction perpendicular to the stretching direction, or vice versa.
  • the liquid crystal cell 103 is disposed between the upper polarizer 107 and the lower polarizer 108.
  • the upper polarizer 107 is bonded to the upper surface of the liquid crystal cell 103
  • the lower polarizer 108 is bonded to the lower surface of the liquid crystal cell 103, respectively.
  • the lower polarizer 108 includes an optical functional layer 106 on a surface opposite to the surface in contact with the liquid crystal cell 103.
  • the liquid crystal cell 103 is not particularly limited and may be a liquid crystal cell commonly used in the art.
  • the optical functional layer 106 may be applied by a coating method or may be a separate functional film.
  • the optical functional layer 106 is not particularly limited, and examples thereof include a reflective polarization separation layer, a retardation layer, an antireflection layer, a reflection layer, and a brightness enhancement layer.
  • the brightness enhancement layer for example, a multilayer thin film of a dielectric material or a multilayer laminate of a thin film film having a different refractive index anisotropy, which exhibits a characteristic of transmitting other linearly polarized light of a predetermined polarization axis and reflecting other light (Sumitomo 3M Co., Ltd.) Manufactured D-BEF, etc.), the one which turns left or turns right, such as supporting the oriented film of the cholesteric liquid crystal polymer or the oriented liquid crystal layer on the film substrate (such as PCF350 manufactured by Nitto Denko Co. or Transmax manufactured by Merck) And reflecting circularly polarized light and transmitting other light.
  • a multilayer thin film of a dielectric material or a multilayer laminate of a thin film film having a different refractive index anisotropy which exhibits a characteristic of transmitting other linearly polarized light of a predetermined polarization axis and reflecting other light
  • Including the optical functional layer improves the optical performance of the liquid crystal display, but may cause warpage of the liquid crystal display. However, since the warpage of the liquid crystal display device of the present invention is improved, even if the optical functional layer is included, warpage can be minimized.
  • Bonding is performed by an adhesion layer.
  • the pressure-sensitive adhesive layer may be formed from a pressure-sensitive adhesive composition containing a pressure-sensitive adhesive resin, a crosslinking agent, and a silane coupling agent as necessary.
  • adhesive resin what has acrylic or urethane resin as a main component can be used, Among these, acrylic resin is preferable at the point that transparency is favorable.
  • the polyvinyl alcohol film having a thickness of 75 ⁇ m was stretched three times while immersing in an aqueous solution of iodine at 30 ° C. and 0.3%, and stretched 5.5 times in total by immersing in an aqueous solution for crosslinking containing 4% boric acid and 10% potassium iodide at 60 ° C. . Thereafter, the solution was immersed in 1.5% aqueous potassium iodide solution at 30 ° C. for 10 seconds, washed, and dried at 50 ° C. for 4 minutes to prepare a polarizer.
  • a 40- ⁇ m saponified triacetylcellulose film was bonded to both surfaces of the prepared polarizer with a polyvinyl alcohol adhesive and dried at 60 ° C. for 4 minutes to prepare a polarizing plate.
  • a polarizing plate was manufactured in the same manner as in the preparation of the upper polarizing plate.
  • a polarizing plate was manufactured in the same manner as in the preparation of the upper polarizing plate of Example 1, except that the boric acid content of the aqueous solution for crosslinking was 6%.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 1.
  • a polarizing plate was manufactured in the same manner as in the preparation of the upper polarizing plate of Example 1, except that the boric acid content of the aqueous solution for crosslinking was 6% and the total draw ratio was 6 times.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 1.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 1.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 1.
  • the polarizing plate was manufactured by the same method as the manufacturing of the lower polarizing plate of Example 1.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 1.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 1.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 2.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 2.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 2.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 3.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 2.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 1.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 3.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 2.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 3.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 3.
  • the polarizing plate was manufactured by the same method as the manufacturing of the upper polarizing plate of Example 3.
  • the polarizers prepared in Examples and Preparation Examples were bonded to both surfaces of 0.5T Glass. After leaving for 24 hours in an oven at 60 °C and again for 2 hours at room temperature after measuring the warp in a two-dimensional measuring instrument of INTEK IMS, the maximum value is shown in Table 1 below.
  • Example 1 The warpage images of Example 1 and Comparative Example 3 are shown in FIGS. 2 and 4, respectively.
  • the polarizers prepared in Examples and Preparation Examples were bonded to both surfaces of 0.5T Glass. After leaving for 24 hours in an oven at 60 °C and again for 1 hour at room temperature, it was mounted on the backlight to observe whether the light leakage occurs.
  • Examples 1 to 4 in which the relationship between the contracting force of the lower polarizer and the contracting force of the upper polarizer are included in the scope of the present invention have a maximum value of the CAP type bending height of 0.13 to 0.22. You can see that no light leakage occurs.
  • liquid crystal display device 101a liquid crystal display device 101a
  • b protective film
  • optical functional layer 107 upper polarizing plate

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

La présente invention concerne un affichage à cristaux liquides, et plus particulièrement un affichage à cristaux liquides comportant: des plaques polarisantes supérieure et inférieure, chacune comprenant un polariseur doté d'un film protecteur déposé sur au moins une face, une cellule à cristaux liquides interposée entre les plaques polarisantes supérieure et inférieure, et une couche à fonction optique déposée sur au moins une face de la plaque polarisante inférieure, les axes d'absorption des polariseurs supérieur et inférieur étant perpendiculaires entre eux, la force de contraction du polariseur inférieur étant inférieure ou égale à 3,5N/2mm, le rapport de la force de contraction du polariseur inférieur/la force de contraction du polariseur supérieur étant inférieur ou égal à 1, de façon à empêcher la flexion de l'affichage à cristaux liquides, en particulier la flexion de type CAP, inhibant ainsi les phénomènes de fuites de lumière et d'anneaux de Newton.
PCT/KR2013/011746 2013-01-11 2013-12-17 Affichage à cristaux liquides WO2014109489A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2015552567A JP2016504632A (ja) 2013-01-11 2013-12-17 液晶表示装置
CN201380069847.9A CN104919363A (zh) 2013-01-11 2013-12-17 液晶显示装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2013-0003540 2013-01-11
KR1020130003540A KR20140091363A (ko) 2013-01-11 2013-01-11 액정표시장치

Publications (1)

Publication Number Publication Date
WO2014109489A1 true WO2014109489A1 (fr) 2014-07-17

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PCT/KR2013/011746 WO2014109489A1 (fr) 2013-01-11 2013-12-17 Affichage à cristaux liquides

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JP (1) JP2016504632A (fr)
KR (1) KR20140091363A (fr)
CN (1) CN104919363A (fr)
TW (1) TW201428362A (fr)
WO (1) WO2014109489A1 (fr)

Cited By (1)

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US11760078B2 (en) 2019-01-11 2023-09-19 Shanjin Optoelectronics (Suzhou) Co., Ltd. Production method of polarizing plate

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JP4888853B2 (ja) 2009-11-12 2012-02-29 学校法人慶應義塾 液晶表示装置の視認性改善方法、及びそれを用いた液晶表示装置
KR101699497B1 (ko) 2010-06-22 2017-01-24 도요보 가부시키가이샤 액정표시장치, 편광판 및 편광자 보호 필름
EP2711748A4 (fr) 2011-05-18 2014-12-03 Toyo Boseki Plaque de polarisation appropriée pour un dispositif d'affichage à cristaux liquides pouvant afficher des images tridimensionnelles, et dispositif d'affichage à cristaux liquides
KR101719862B1 (ko) 2011-05-18 2017-03-24 도요보 가부시키가이샤 액정표시장치, 편광판 및 편광자 보호 필름
US10234727B2 (en) * 2014-10-28 2019-03-19 Sharp Kabushiki Kaisha Mirror display comprising a half mirror plate including a reflective polarizer and a polarization conversion layer
JP2017156399A (ja) * 2016-02-29 2017-09-07 住友化学株式会社 偏光板のセットおよび液晶パネル
WO2017170216A1 (fr) * 2016-03-31 2017-10-05 東洋紡株式会社 Afficheur a cristaux liquides
KR102024248B1 (ko) * 2017-07-14 2019-09-23 주식회사 엘지화학 편광판
JP2018067020A (ja) * 2018-01-23 2018-04-26 住友化学株式会社 偏光板のセットおよび液晶パネル
KR102621169B1 (ko) * 2019-01-11 2024-01-05 산진 옵토일렉트로닉스 (난징) 컴퍼니 리미티드 편광판의 제조 방법
KR20200087435A (ko) * 2019-01-11 2020-07-21 주식회사 엘지화학 편광판
KR20230012745A (ko) * 2021-07-16 2023-01-26 동우 화인켐 주식회사 광학 적층체 및 이의 제조방법과, 이를 포함하는 스마트 윈도우 및 이를 적용한 자동차 또는 건물용 창호
KR20230018356A (ko) * 2021-07-26 2023-02-07 동우 화인켐 주식회사 광학 적층체 및 이를 포함하는 스마트 윈도우

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JP2009109993A (ja) * 2007-10-12 2009-05-21 Sumitomo Chemical Co Ltd 偏光板のセット、ならびにこれを用いた液晶パネルおよび液晶表示装置
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Publication number Priority date Publication date Assignee Title
US11760078B2 (en) 2019-01-11 2023-09-19 Shanjin Optoelectronics (Suzhou) Co., Ltd. Production method of polarizing plate

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CN104919363A (zh) 2015-09-16
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TW201428362A (zh) 2014-07-16

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