WO2015145656A1 - Polariseur et dispositif d'affichage d'image - Google Patents

Polariseur et dispositif d'affichage d'image Download PDF

Info

Publication number
WO2015145656A1
WO2015145656A1 PCT/JP2014/058843 JP2014058843W WO2015145656A1 WO 2015145656 A1 WO2015145656 A1 WO 2015145656A1 JP 2014058843 W JP2014058843 W JP 2014058843W WO 2015145656 A1 WO2015145656 A1 WO 2015145656A1
Authority
WO
WIPO (PCT)
Prior art keywords
polarizer
image display
laser
resin film
display device
Prior art date
Application number
PCT/JP2014/058843
Other languages
English (en)
Japanese (ja)
Inventor
章典 伊▲崎▼
西田　幹司
直之 松尾
済木　雄二
本村　弘則
Original Assignee
日東電工株式会社
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.)
Filing date
Publication date
Application filed by 日東電工株式会社 filed Critical 日東電工株式会社
Priority to PCT/JP2014/058843 priority Critical patent/WO2015145656A1/fr
Publication of WO2015145656A1 publication Critical patent/WO2015145656A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid

Definitions

  • the present invention relates to a polarizer and an image display device.
  • Cameras are usually mounted on image display devices such as mobile phones and notebook personal computers (PCs).
  • image display devices such as mobile phones and notebook personal computers (PCs).
  • PCs notebook personal computers
  • Various studies have been made for the purpose of improving the camera performance of such an image display device (for example, Patent Document 1).
  • Patent Document 1 For example, Patent Document 1
  • smartphones and touch panel type information processing devices further improvement in camera performance is desired.
  • the present invention has been made to solve the above-described conventional problems, and a main object thereof is to provide a polarizer capable of realizing an image display device having excellent camera performance.
  • the present inventors have paid attention to a polarizer mounted on an image display device and found that the above object can be achieved by forming a decoloring part in the polarizer, and have completed the present invention.
  • the polarizer of the present invention is composed of a resin film containing a dichroic substance and has a decolorized part that is partially decolored.
  • the transmittance of the decolorization part is 46% or more.
  • the decolorization part is formed by irradiating a laser beam including light having a wavelength of at least 1500 nm.
  • the decoloring unit corresponds to the camera hole unit of the image display device to be mounted.
  • the dichroic material is iodine.
  • the thickness is 30 ⁇ m or less. According to another aspect of the present invention, a method for producing a polarizer is provided.
  • This manufacturing method of a polarizer has a process of forming a decoloring part by irradiating a resin film containing a dichroic substance with a laser beam.
  • the laser beam includes light having a wavelength of at least 1500 nm or less.
  • the laser is a solid state laser.
  • an image display device is provided.
  • the image display device includes the polarizer.
  • the manufacturing method of the said image display apparatus is provided. This manufacturing method includes a step of irradiating a laser beam onto an image display panel laminated so that a resin film containing a dichroic material is on the surface side to form the decolorized portion.
  • the present invention by forming a decoloring part in a resin film containing a dichroic substance, it is possible to ensure the transparency of the camera hole part and contribute to the improvement of the camera performance of the obtained image display device. .
  • receiving electronic devices such as images and monitors (for example, camera devices having a photographing optical system), but also transmitting electronic devices such as LED lights and infrared sensors, and the naked eye. It is also possible to provide an image display device that ensures the transparency of the image.
  • FIG. 1 is a plan view of a polarizer according to one embodiment of the present invention.
  • FIG. 1 is a plan view of a polarizer according to a preferred embodiment of the present invention.
  • the polarizer 1 is made of a resin film and has a decoloring part 2 that is partially decolored. According to such a configuration, compared to a case where a hole is formed in the resin film mechanically (specifically, by a method of mechanically pulling out using an engraving blade punching, a plotter, a water jet, or the like) It is possible to avoid quality problems such as cracks, delamination (delamination), and paste sticking.
  • the resin film contains a dichroic substance.
  • the dichroic substance include iodine and organic dyes. These may be used alone or in combination of two or more.
  • iodine is used. Iodine has properties suitable for use as a camera hole as a result of the complex with the resin (for example, polyvinyl alcohol-based resin) constituting the resin film disintegrating at an appropriate rate by the predetermined laser irradiation described later.
  • a decolorization part can be formed.
  • any appropriate resin can be used as the resin forming the resin film.
  • PVA resin polyvinyl alcohol resin
  • the complex of the PVA-based resin and iodine is collapsed at an appropriate ratio by irradiation with a predetermined laser, and as a result, a decolorization part having characteristics suitable for use as a camera hole can be formed.
  • the PVA resin include polyvinyl alcohol and ethylene-vinyl alcohol copolymer.
  • Polyvinyl alcohol is obtained by saponifying polyvinyl acetate.
  • the ethylene-vinyl alcohol copolymer can be obtained by saponifying an ethylene-vinyl acetate copolymer.
  • the saponification degree of the PVA resin is usually 85 mol% or more and less than 100 mol%, preferably 95.0 mol% to 99.95 mol%, more preferably 99.0 mol% to 99.93 mol%. is there.
  • the degree of saponification can be determined according to JIS K 6726-1994. By using a PVA-based resin having such a saponification degree, a polarizer having excellent durability can be obtained. If the degree of saponification is too high, there is a risk of gelation.
  • the average degree of polymerization of the PVA resin can be appropriately selected according to the purpose.
  • the average degree of polymerization is usually 1000 to 10,000, preferably 1200 to 4500, and more preferably 1500 to 4300.
  • the average degree of polymerization can be determined according to JIS K 6726-1994.
  • the polarizer (excluding the decoloring part) preferably exhibits absorption dichroism in the wavelength range of 380 nm to 780 nm.
  • the single transmittance (Ts) of the polarizer (excluding the decolorized part) is preferably 40% or more, more preferably 41% or more, still more preferably 42% or more, and particularly preferably 43% or more.
  • the theoretical upper limit of the single transmittance is 50%, and the practical upper limit is 46%.
  • the single transmittance (Ts) is a Y value measured by a JIS Z8701 two-degree field of view (C light source) and corrected for visibility. Can be measured.
  • the degree of polarization of the polarizer (excluding the decolorization part) is preferably 99.8% or more, more preferably 99.9% or more, and further preferably 99.95% or more.
  • the thickness of the polarizer can be set to any appropriate value.
  • the thickness is typically about 1 ⁇ m to 80 ⁇ m, and preferably 30 ⁇ m or less. The thinner the thickness, the better the decolorization part can be formed. For example, in laser light irradiation described later, the absorbance per unit film thickness is high, and a decolorized portion can be formed efficiently.
  • the small-color decoloring part 2 is formed at the center of the upper end of the resin film, but the arrangement, shape, size, etc. of the decoloring part can be designed as appropriate. Preferably, it is designed according to the position, shape, size, etc. of the camera hole part of the mounted image display device. Specifically, it is designed so that the decoloring part does not correspond to the display screen of the mounted image display device.
  • the transmittance of the decolorized part (for example, transmittance measured with light having a wavelength of 550 nm at 23 ° C.) is preferably 46% or more, more preferably 60% or more, still more preferably 75% or more, and particularly preferably 90% or more. It is. With such a transmittance, desired transparency as a decoloring part can be ensured. As a result, when the decoloring part is used as the camera hole part of the image display device, it is possible to prevent an adverse effect on the photographing performance of the camera.
  • the polarizer of the present invention can be used in any appropriate form.
  • a polarizer is used by laminating a protective film on at least one side thereof (as a polarizing film).
  • the material for forming the protective film include cellulose resins such as diacetyl cellulose and triacetyl cellulose, (meth) acrylic resins, cycloolefin resins, olefin resins such as polypropylene, and ester resins such as polyethylene terephthalate resins. , Polyamide resins, polycarbonate resins, copolymer resins thereof, and the like.
  • the surface of the protective film on which the polarizer is not laminated may be subjected to a treatment for the purpose of a hard coat layer, antireflection treatment, diffusion or antiglare as a surface treatment layer.
  • the surface treatment layer is preferably a layer having a low moisture permeability for the purpose of improving the humidification durability of the polarizer.
  • the hard coat treatment is performed for the purpose of preventing scratches on the surface of the polarizing film.
  • the hard coat layer can be formed by, for example, a method of adding a cured film excellent in hardness, slipping properties, etc., to an appropriate ultraviolet curable resin such as acrylic or silicone.
  • the hard coat layer preferably has a pencil hardness of 2H or more.
  • the antireflection treatment is performed for the purpose of preventing the reflection of external light on the surface of the polarizing film, and is based on the interference action of light as disclosed in, for example, Japanese Patent Application Laid-Open No. 2005-248173.
  • Anti-glare treatment is performed for the purpose of preventing external light from being reflected on the surface of the polarizing film and obstructing the visibility of the light transmitted through the polarizing film.
  • a roughening method using a sandblasting method or an embossing method For example, a roughening method using a sandblasting method or an embossing method. Or by applying a fine concavo-convex structure to the surface of the protective film by an appropriate method such as a blending method of transparent fine particles.
  • the antiglare layer may also serve as a diffusion layer (viewing angle expanding function or the like) for diffusing the light transmitted through the polarizing film to expand the viewing angle.
  • the thickness of the protective film is preferably 20 ⁇ m to 100 ⁇ m.
  • the protective film is typically laminated on the polarizer via an adhesive layer (specifically, an adhesive layer or an adhesive layer).
  • the adhesive layer is typically formed of a PVA adhesive.
  • the pressure-sensitive adhesive layer is typically formed of an acrylic pressure-sensitive adhesive.
  • the polarizer is preferably produced by subjecting a resin film containing a dichroic material to a decolorization treatment to form the decolorization part.
  • the resin film containing the dichroic substance is preferably produced by subjecting the resin film to a treatment such as dyeing.
  • the resin film may be a resin layer (PVA resin layer) formed on a resin base material. According to such a form, a thin polarizer (for example, 10 micrometers or less) can be obtained.
  • the dyeing is preferably performed by adsorbing iodine to the resin film.
  • the adsorption method include a method of immersing a resin film in a staining solution containing iodine, a method of applying the staining solution to a resin film, and a method of spraying the staining solution onto the resin film.
  • the resin film is immersed in the dyeing solution. This is because iodine can be adsorbed well.
  • the staining solution is preferably an iodine aqueous solution.
  • the amount of iodine is preferably 0.04 to 5.0 parts by weight per 100 parts by weight of water.
  • an iodide to the aqueous iodine solution.
  • the iodide include potassium iodide, lithium iodide, sodium iodide, zinc iodide, aluminum iodide, lead iodide, copper iodide, barium iodide, calcium iodide, tin iodide, and titanium iodide. Etc. Among these, potassium iodide is preferable.
  • the blending amount of iodide is preferably 0.3 to 15 parts by weight with respect to 100 parts by weight of water.
  • the liquid temperature during staining of the staining liquid is preferably 20 ° C. to 50 ° C.
  • the immersion time is preferably 5 seconds to 5 minutes.
  • the resin film may be appropriately subjected to treatment for making a polarizer.
  • the treatment for obtaining a polarizer include stretching treatment, insolubilization treatment, crosslinking treatment, washing treatment, and drying treatment.
  • count, order, etc. of these processes are not specifically limited.
  • any appropriate method can be adopted as the stretching method of the stretching treatment. Specifically, free end stretching or fixed end stretching may be used.
  • the stretching direction can be set as appropriate. In one embodiment, it extends in the longitudinal direction of the long resin film. In this case, typically, a method of stretching through a resin film between rolls having different peripheral speeds is employed. In another embodiment, it extends
  • the stretching method is not particularly limited, and may be wet or dry.
  • the stretching temperature can be appropriately set according to the stretching method, for example.
  • the draw ratio is typically 3 to 7 times. Stretching may be performed in one stage or in multiple stages. When performing in multiple stages, for example, the free end stretching and fixed end stretching may be combined, or the wet stretching and dry stretching may be combined. In addition, when performing by multistep, the said draw ratio is a product of the draw ratio of each step.
  • the resin film is a resin layer (PVA resin layer) formed on a resin base material
  • PVA resin layer resin layer
  • stretching conditions it describes in the patent 4804588 gazette, for example. The description is incorporated herein by reference.
  • the insolubilization treatment and the crosslinking treatment are typically performed by immersing a resin film in an aqueous boric acid solution.
  • the cleaning treatment is typically performed by immersing a resin film in an aqueous potassium iodide solution.
  • the drying temperature in the drying treatment is preferably 30 ° C. to 100 ° C.
  • the decolorization part is preferably formed by irradiating the resin film containing the dichroic substance with laser light. According to laser light irradiation, a decoloring part having a desired shape can be favorably formed at a desired position. More specifically, in recent years, there has been a strong demand for making the image non-display portion of the image display device as small as possible due to a design requirement.
  • the decolorization part must be formed at the extreme end (for example, the central part of the uppermost end). In this case, if a hole is mechanically formed as a camera hole instead of the decoloring portion, the end portion of the polarizing film may be cut out.
  • the laser beam preferably includes light having a wavelength of at least 1500 nm or less.
  • a decoloring part can be formed. More preferably, it contains light with a wavelength of at least 1000 nm, more preferably contains light with a wavelength of 800 nm or less, and particularly preferably contains light with a wavelength of 600 nm or less.
  • the decoloring part can be formed while achieving surface uniformity. Specifically, the decoloring part can be formed without damaging (for example, thermal deformation) the polarizer peripheral optical member (for example, the protective film).
  • a decoloring part can be favorably formed without damaging the resin film itself.
  • the flatness of the obtained image display device image display panel
  • the transmittance of the decoloring part can be achieved satisfactorily.
  • the laser examples include solid lasers such as YAG laser, YLF laser, and YVO4 laser, argon ion laser, gas laser including krypton ion laser, fiber laser, and semiconductor laser.
  • a solid laser particularly a YAG laser is used.
  • a short pulse laser (laser that irradiates light having a pulse width of 1 nanosecond or less, such as a picosecond laser or a femtosecond laser) is preferably used.
  • a pulse width of 500 picoseconds or less is particularly preferable.
  • the laser light irradiation condition can be set to any appropriate condition.
  • the pulse energy is preferably 25 ⁇ J to 71 ⁇ J.
  • the scanning speed is preferably 10 mm / second to 100 mm / second.
  • the number of repetitive pulses is preferably 100 Hz to 12480 Hz. According to such conditions, a decoloring part can be satisfactorily formed without damaging the polarizing film peripheral member and the resin film itself. Moreover, the transmittance can be achieved satisfactorily.
  • the laser beam includes polarized light substantially coaxial with the absorption axis of the resin film (polarizer).
  • polarizer resin film
  • a galvano mirror may be driven to scan and position the laser.
  • a homogenizer (DOE: Diffractive Optical Element) for uniformizing the laser light intensity mainly having a Gaussian distribution may be used for the purpose of obtaining surface uniformity of the decolorized portion.
  • the said decoloring part can be formed favorably, achieving surface uniformity also by irradiating X-rays.
  • the decoloring part can also be formed by a heating means such as a light source (for example, an Xe lamp) that emits light having a wavelength of 100 pm to 1500 nm, a heating plate for barcode printing, and the like.
  • An image display device of the present invention includes the polarizer.
  • the image display device include a liquid crystal display device and an organic EL device.
  • the liquid crystal display device includes a liquid crystal panel including a liquid crystal cell and the polarizer disposed on one side or both sides of the liquid crystal cell.
  • the organic EL device includes an organic EL panel in which the polarizer is disposed on the viewing side.
  • the polarizer is arranged so as to correspond to the camera hole part of the image display device on which the decoloring part is mounted.
  • the image display device includes an image display panel (for example, a liquid crystal panel or an organic EL panel) laminated such that the resin film containing the dichroic material is on the surface side. ) Is irradiated with a laser beam (from the front surface side) to form the decoloring part. According to such a method, positioning of the decoloring part can be facilitated.
  • an image display panel for example, a liquid crystal panel or an organic EL panel
  • Ts Transmissivity
  • Measurement was performed using a microspectroscopic system (Lambda Vision Co., Ltd., LVmicro). Note that Ts is a Y value measured by a two-degree field of view (C light source) of JIS Z8701 and corrected for visibility.
  • Example 1 Using a solid-state laser (wavelength: 532 nm), a glued polarizing film (adhesive layer (thickness 20 ⁇ m) / second) with a total thickness of 129 ⁇ m under irradiation conditions of a pulse energy of 40 ⁇ J, a scanning speed of 100 mm / sec, and a repetition pulse number of 3120 Hz
  • the protective film (thickness 58 ⁇ m) / polarizer (thickness 5 ⁇ m) / first protective film (thickness 46 ⁇ m)) was irradiated with laser light from the viewing side (first protective film side). In this way, the decoloring part was formed in the polarizing film (polarizer).
  • Example 2 A decolorized portion was formed in the same manner as in Example 1 except that the laser beam was irradiated under irradiation conditions of a pulse energy of 71 ⁇ J, a scanning speed of 100 mm / sec, and a repetition pulse number of 6240 Hz.
  • Example 3 A decolorized portion was formed in the same manner as in Example 1 except that laser light was irradiated under irradiation conditions of a pulse energy of 71 ⁇ J, a scanning speed of 100 mm / sec, and a repetition pulse number of 12480 Hz.
  • Example 4 Using a semiconductor laser (wavelength: 940 nm), a decolorized portion was formed in the same manner as in Example 1 except that laser light was irradiated under irradiation conditions of continuous wave energy of 30 W, scanning speed of 10 mm / sec, and spot diameter of 2 mm ⁇ . .
  • the area irradiated with the laser beam was slightly discolored, the transmittance of the irradiated portion was 44.0%, and the transmittance of the irradiated portion was 49.2%.
  • the transmittance of the irradiated portion was 44.0%, and the transmittance of the irradiated portion was 49.2%.
  • Example 3 A CO 2 gas laser (wavelength: 10.6 ⁇ m) was used in the same manner as in Example 1 except that laser light was irradiated under irradiation conditions of a pulse energy of 0.8 mJ, a scanning speed of 300 mm / sec, and a repetition pulse number of 3000 Hz. An attempt was made to form a decoloring part.
  • the area irradiated with the laser beam was not decolorized, and the transmittance (44.0%) of the unirradiated portion and the transmittance of the irradiated portion were the same. Moreover, when the surface shape of the irradiation area was confirmed, the remarkable unevenness
  • the polarizer of the present invention is suitably used for a mobile phone such as a smartphone, an image display device with a camera (liquid crystal display device, organic EL device) such as a notebook PC or tablet PC.
  • a mobile phone such as a smartphone
  • an image display device with a camera liquid crystal display device, organic EL device
  • a notebook PC or tablet PC such as a notebook PC or tablet PC.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un polariseur qui permet d'obtenir un dispositif d'affichage d'image à performance de prise de vue améliorée. Le polariseur selon ce mode de réalisation est composé d'un film de résine qui comprend une substance dichroïque et qui a une partie partiellement décolorée.
PCT/JP2014/058843 2014-03-27 2014-03-27 Polariseur et dispositif d'affichage d'image WO2015145656A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/058843 WO2015145656A1 (fr) 2014-03-27 2014-03-27 Polariseur et dispositif d'affichage d'image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/058843 WO2015145656A1 (fr) 2014-03-27 2014-03-27 Polariseur et dispositif d'affichage d'image

Publications (1)

Publication Number Publication Date
WO2015145656A1 true WO2015145656A1 (fr) 2015-10-01

Family

ID=54194249

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/058843 WO2015145656A1 (fr) 2014-03-27 2014-03-27 Polariseur et dispositif d'affichage d'image

Country Status (1)

Country Link
WO (1) WO2015145656A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10215901B2 (en) * 2015-11-04 2019-02-26 Nitto Denko Corporation Polarizer, polarizing plate, and method of producing polarizer
CN111316144A (zh) * 2017-11-10 2020-06-19 住友化学株式会社 圆偏振板及显示装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06245209A (ja) * 1993-02-19 1994-09-02 Sony Corp カメラ一体型ディスプレイ装置
US20040212555A1 (en) * 2003-04-23 2004-10-28 Falco Mark A. Portable electronic device with integrated display and camera and method therefore
JP2009015272A (ja) * 2007-07-06 2009-01-22 Wise Media Technology Inc カメラ内蔵ディスプレイ装置
US20110109829A1 (en) * 2009-11-10 2011-05-12 Mathew Dinesh C Methods for fabricating display structures
JP2012048046A (ja) * 2010-08-27 2012-03-08 Nitto Denko Corp 光学機能フィルム連続ロール、およびそれを用いた液晶表示素子の製造方法、ならびに光学機能フィルム貼り合せ装置
JP2012098726A (ja) * 2010-10-29 2012-05-24 Apple Inc 電子機器用のカメラレンズ構造体およびディスプレイ構造体
JP2012137738A (ja) * 2010-10-29 2012-07-19 Apple Inc 偏光窓及び不透明マスク層を有する電子デバイスのディスプレイ
JP2013205840A (ja) * 2012-03-28 2013-10-07 Lg Display Co Ltd ディスプレイ装置
WO2014017541A1 (fr) * 2012-07-27 2014-01-30 富士フイルム株式会社 Plaque polarisante et dispositif d'affichage à cristaux liquides

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06245209A (ja) * 1993-02-19 1994-09-02 Sony Corp カメラ一体型ディスプレイ装置
US20040212555A1 (en) * 2003-04-23 2004-10-28 Falco Mark A. Portable electronic device with integrated display and camera and method therefore
JP2009015272A (ja) * 2007-07-06 2009-01-22 Wise Media Technology Inc カメラ内蔵ディスプレイ装置
US20110109829A1 (en) * 2009-11-10 2011-05-12 Mathew Dinesh C Methods for fabricating display structures
JP2012048046A (ja) * 2010-08-27 2012-03-08 Nitto Denko Corp 光学機能フィルム連続ロール、およびそれを用いた液晶表示素子の製造方法、ならびに光学機能フィルム貼り合せ装置
JP2012098726A (ja) * 2010-10-29 2012-05-24 Apple Inc 電子機器用のカメラレンズ構造体およびディスプレイ構造体
JP2012137738A (ja) * 2010-10-29 2012-07-19 Apple Inc 偏光窓及び不透明マスク層を有する電子デバイスのディスプレイ
JP2013205840A (ja) * 2012-03-28 2013-10-07 Lg Display Co Ltd ディスプレイ装置
WO2014017541A1 (fr) * 2012-07-27 2014-01-30 富士フイルム株式会社 Plaque polarisante et dispositif d'affichage à cristaux liquides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10215901B2 (en) * 2015-11-04 2019-02-26 Nitto Denko Corporation Polarizer, polarizing plate, and method of producing polarizer
US10578786B2 (en) 2015-11-04 2020-03-03 Nitto Denko Corporation Polarizer, polarizing plate, and method of producing polarizer
CN111316144A (zh) * 2017-11-10 2020-06-19 住友化学株式会社 圆偏振板及显示装置
CN111316144B (zh) * 2017-11-10 2023-01-06 住友化学株式会社 圆偏振板及显示装置

Similar Documents

Publication Publication Date Title
JP2014081482A (ja) 偏光子および画像表示装置
JP2014164085A (ja) 偏光子および画像表示装置
US11385391B2 (en) Polarizer having non-polarization portions, a long polarizing plate and image display device comprising the polarizer
KR102338450B1 (ko) 편광자, 편광판, 및 화상 표시 장치
KR102337923B1 (ko) 편광자, 편광판, 및 화상 표시 장치
JP6215262B2 (ja) 長尺状の偏光子の製造方法
KR102337921B1 (ko) 편광자, 편광판, 및 화상 표시 장치
TW201706640A (zh) 偏光件
JP6152128B2 (ja) 偏光子の製造方法
JP2014167548A (ja) 画像表示装置の製造方法および該製造方法により得られる画像表示装置
WO2015145658A1 (fr) Polariseur et dispositif d'affichage d'image
JP2014164084A (ja) 偏光子および画像表示装置
JP2014191050A (ja) 偏光子のレーザー加工方法
WO2015145656A1 (fr) Polariseur et dispositif d'affichage d'image
TW201539057A (zh) 偏光元件及圖像顯示裝置
WO2015145657A1 (fr) Polariseur et dispositif d'affichage d'image
TW201539052A (zh) 偏光元件及圖像顯示裝置
TW201539058A (zh) 偏光元件及圖像顯示裝置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14887658

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14887658

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP