WO2020026955A1 - Adhésif destiné à être appliqué sur un dispositif d'affichage - Google Patents

Adhésif destiné à être appliqué sur un dispositif d'affichage Download PDF

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Publication number
WO2020026955A1
WO2020026955A1 PCT/JP2019/029315 JP2019029315W WO2020026955A1 WO 2020026955 A1 WO2020026955 A1 WO 2020026955A1 JP 2019029315 W JP2019029315 W JP 2019029315W WO 2020026955 A1 WO2020026955 A1 WO 2020026955A1
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WO
WIPO (PCT)
Prior art keywords
adhesive
pigment
meth
display
mass
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Application number
PCT/JP2019/029315
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English (en)
Japanese (ja)
Inventor
佐藤　信之
裕美 吉原
Original Assignee
株式会社有沢製作所
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Publication of WO2020026955A1 publication Critical patent/WO2020026955A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J201/00—Adhesives based on unspecified macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters

Definitions

  • the present invention relates to an adhesive for attaching a display.
  • An adhesive for attaching a display, which can adjust contrast and suppress reflection of external light by being attached to a display such as a personal computer monitor, has been proposed.
  • a color tone of such an adhesive film neutral gray is usually adopted from the viewpoint of adjusting contrast and suppressing reflection of external light.
  • Patent Document 1 discloses an adhesive film for an electronic display in which a pressure-sensitive adhesive layer in which a photopolymerizable compound, a photopolymerization initiator and carbon black are dispersed is provided on one surface of a transparent substrate. Have been.
  • an object of the present invention is to provide a display sticking adhesive suitable for a touch screen panel despite being neutral gray.
  • the present inventors have conducted intensive studies to solve the above-described problems, and as a result, including a coloring material containing a red pigment, a blue pigment, and a yellow pigment, and after photocuring, a * and C * in a CIE Lab color space display system.
  • b * respectively, it found that -3.0 ⁇ a * ⁇ 3.0, -3.0 ⁇ b * satisfy ⁇ 3.0 display sticking adhesive, can solve the above problem, accomplished the present invention I let it.
  • the adhesive for pasting a display of the present invention is an adhesive for pasting a display having photocurability, which comprises a coloring material containing a red pigment, a blue pigment, and a yellow pigment, and which is CIE Lab after photocuring.
  • a * and b * in the color space display system satisfy ⁇ 3.0 ⁇ a * ⁇ 3.0 and ⁇ 3.0 ⁇ b * ⁇ 3.0, respectively.
  • the present embodiment a mode for carrying out the present invention (hereinafter, referred to as “the present embodiment”) will be described in detail.
  • the present invention is not limited to the following embodiments, and can be implemented with various modifications within the scope of the invention.
  • neutral gray means that a * and b * in the CIE Lab color space display system are ⁇ 3.0 ⁇ a * ⁇ 3.0 and ⁇ 3.0 ⁇ b * ⁇ 3.0, respectively. It means that it is 0.
  • the display bonding adhesive of the present embodiment (hereinafter, also simply referred to as “adhesive”) is a light-curable display bonding adhesive, and is a color containing a red pigment, a blue pigment, and a yellow pigment.
  • a * and b * in the CIE Lab color space display system after photo-curing satisfy ⁇ 3.0 ⁇ a * ⁇ 3.0 and ⁇ 3.0 ⁇ b * ⁇ 3.0, respectively. . a * and b * preferably satisfy ⁇ 2.0 ⁇ a * ⁇ 2.0 and ⁇ 2.0 ⁇ b * ⁇ 2.0 from the viewpoint of contrast adjustment, and ⁇ 1.0 ⁇ a *. It is more preferable to satisfy ⁇ 1.0 and ⁇ 1.0 ⁇ b * ⁇ 1.0.
  • the adhesive film described in Patent Literature 1 carbon black is used as a pigment for coloring in neutral gray. Therefore, when the adhesive film is applied to a touch screen panel, the function of the touch sensor may be impaired due to the high conductivity of carbon black.
  • the adhesive of the present embodiment enables neutral gray coloring by combining a red pigment, a blue pigment, and a yellow pigment. Since the conductivity of such a pigment is extremely low as compared with the conductivity of carbon black, the function of the touch sensor is not impaired even when the adhesive is applied to the touch screen panel. For this reason, the adhesive of the present embodiment can be suitably used for a touch screen panel despite being neutral gray.
  • the coloring material contains a red pigment, a blue pigment, and a yellow pigment.
  • a dye as a coloring material.
  • the obtained adhesive may not have sufficient environmental resistance (for example, heat resistance) and weather resistance.
  • the obtained adhesive can sufficiently improve environmental resistance and weather resistance.
  • the coloring material may contain other pigments as long as the effects of the present invention are not impaired.
  • red pigment examples include red iron oxide, cadmium red, molybdenum red, naphthol AS-based azo red, anthanthrone, anthraquinone red, perylene maroon, quinacridone-based red pigment, diketopyrrolopyrrole, watching red, permanent red, and the like.
  • red pigments are used alone or in combination of two or more.
  • the red pigment is preferably anthraquinone red. By using such a red pigment, the adhesive tends to be more excellent in environmental resistance and weather resistance.
  • the blue pigment examples include cobalt blue, Prussian blue, phthalocyanine blue, and sllen blue. These pigments are used alone or in combination of two or more. Among these, the blue pigment is preferably phthalocyanine blue. By using such a blue pigment, the adhesive tends to be more excellent in environmental resistance and weather resistance.
  • the yellow pigment for example, yellow iron oxide, titanium yellow, chrome yellow, chromium oxide, monoazo yellow, condensed azo yellow, azomethine yellow, bismuth vanadate, benzimidazolone, isoindolinone, isoindoline, quinophthalone, benzidine yellow, permanent Yellow and the like. These pigments are used alone or in combination of two or more. Among these, the yellow pigment is preferably isoindolinone. By using such a yellow pigment, the adhesive tends to be more excellent in environmental resistance and weather resistance.
  • the average particle size of each pigment is preferably from 10 to 200 nm, more preferably from 50 to 180 nm, even more preferably from 70 to 175 nm. When the average particle diameter of each pigment is within the above range, the visibility tends to be further excellent while maintaining neutral gray.
  • the average particle size of each pigment refers to a value measured using a “laser diffraction particle size distribution analyzer SALD-200” manufactured by Shimadzu Corporation. To the sample, 50 g of pure water and 5 g of a pigment to be measured are added to a glass beaker, stirred using a spatula, and then subjected to a dispersion treatment for 10 minutes by an ultrasonic cleaner.
  • the pigment solution subjected to the dispersion treatment is added drop by drop to the sampler section of the apparatus with a dropper, and it is waited for the absorbance to stabilize until it can be measured. When the absorbance becomes stable, the measurement is performed.
  • the particle size distribution is calculated from the data of the light intensity distribution of the diffraction / scattered light by the particles detected by the sensor.
  • the average particle size is determined by multiplying the measured particle size by the relative particle amount (% difference) and dividing by the total relative particle amount (100%).
  • the average particle diameter is the average diameter of the particles.
  • “%” here indicates volume%.
  • the content of each pigment is not particularly limited as long as neutral gray can be achieved, but the content of the red pigment is 37 to 41% by mass and the content of the blue pigment is 25 to 19% by mass based on the entire coloring material. It is preferable that the content of the yellow pigment is 37 to 41% by mass, the content of the red pigment is 38 to 40% by mass, the content of the blue pigment is 26 to 18% by mass, More preferably, the content is 38 to 40% by mass.
  • each value of a * and b * in the CIE Lab color space display system tends to be able to approach 0.
  • secondary particles of a coloring material having a size of 5.0 ⁇ m or more substantially exist in an optical microscope image per 5 mm 2.
  • the haze of the adhesive can be reduced, and the transmittance tends to be excellent.
  • the term "substantially free” does not mean that no present at all, meaning that no such an extent that affects the haze of the adhesive, preferably per 5 mm 2
  • the optical microscope image shows that the secondary particles cannot be found when observed at a magnification of 1500 times.
  • the adhesive of the present embodiment may contain a UV-curable prepolymer in order to have photocurability.
  • the UV-curable prepolymer include urethane (meth) acrylate having a urethane structure in a main chain and a (meth) acryl group in a side chain.
  • the urethane (meth) acrylate include urethane (meth) acrylate having a polycarbonate skeleton, urethane (meth) acrylate having a polyether skeleton, and urethane (meth) acrylate having a polyester skeleton.
  • urethane (meth) acrylate having a polycarbonate skeleton is preferable as the UV-curable prepolymer from the viewpoint of non-yellowing.
  • the urethane (meth) acrylate having a polycarbonate skeleton refers to a prepolymer having a polycarbonate structure and a urethane structure in a main chain and having a (meth) acryl group in a side chain.
  • the urethane (meth) acrylate having a polycarbonate skeleton can be obtained, for example, by reacting polycarbonate diol, diisocyanate, and carboxylic acid diol, and then reacting glycidyl (meth) acrylate.
  • the weight average molecular weight of the polycarbonate diol is preferably from 170 to 1,000, more preferably from 300 to 700, and still more preferably from 400 to 600 in terms of polystyrene by gel permeation chromatography (GPC).
  • the diisocyanate is not particularly limited.
  • Aromatic isocyanates such as 1,5-naphthalene diisocyanate (NDI); hexamethylene isocyanate (HDI), trimethylhexamethylene diisocyanate (TMHDI), lysine diisocyanate, norbornane diisocyanate
  • Aliphatic polyisocyanates such as Tomechiru (NBDI
  • the carboxylic acid diol is not particularly limited, and includes, for example, dimethylolbutanoic acid, dimethylolpropionic acid, and the like.
  • a urethane (meth) acrylate having a polyether skeleton refers to a prepolymer having a polyether structure and a urethane structure in a main chain, and having a (meth) acryl group in a side chain.
  • the urethane (meth) acrylate having a polyester skeleton refers to a prepolymer having a polyester structure and a urethane structure in a main chain and having a (meth) acryl group in a side chain.
  • prepolymers can be obtained by the same method as for the urethane (meth) acrylate having a polycarbonate skeleton except that a polyether diol and a polyester diol are used instead of the polycarbonate diol, respectively.
  • the preferable weight average molecular weight of the polyether diol and the polyester diol is the same as the preferable weight average molecular weight of the above-mentioned polycarbonate diol.
  • the weight-average molecular weight of the UV-curable prepolymer is preferably from 10,000 to 100,000, more preferably from 30,000 to 70,000, even more preferably from 40,000 to 60,000 in terms of polystyrene by GPC. 000.
  • the weight average molecular weight is in the above range, the film formability and the curability tend to be more excellent.
  • the double bond equivalent of the UV-curable prepolymer is preferably from 1,000 to 5,000 g / eq, more preferably from 1,500 to 2,500 g / eq, and still more preferably from 1,800 to 2,500 g / eq. It is 200 g / eq.
  • the double bond equivalent was calculated by dividing the solid content mass (g) of the carboxyl group-containing (meth) acrylate by the number of moles (g / mol) of the compound having an oxirane ring and an ethylenically unsaturated bond. Value.
  • the content of the coloring material may be about 1 to 10 parts by mass with respect to 100 parts by mass of the UV-curable prepolymer.
  • the content of the coloring material is a part by mass in a slurry state.
  • UV curable monomer The adhesive of the present embodiment may contain a UV curable monomer.
  • UV-curable monomers include (meth) acrylic monomers. These (meth) acrylic monomers are used alone or in combination of two or more. Among them, a hydroxyl group-containing (meth) acrylic monomer is preferable from the viewpoint of suppressing an increase in haze under a high temperature and high humidity environment. Examples of the hydroxyl group-containing (meth) acrylic monomer include 2-hydroxyethyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 5-hydroxypentyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, and 8-hydroxyethyl (meth) acrylate.
  • Hydroxyoctyl (meth) acrylate caprolactone-modified 2-hydroxyethyl (meth) acrylate, diethylene glycol (meth) acrylate, polyethylene glycol (meth) acrylate, 2-acryloyloxyethyl 2-hydroxyethyl phthalate, 2-hydroxypropyl (meth) ) Acrylate, 2-hydroxybutyl (meth) acrylate, 3-chloro-2-hydroxypropyl (meth) acrylate, 2,2-dimethyl2-hydroxyethyl (meth) acrylate And the like.
  • the content of the UV curable monomer may be about 20 to 50 parts by mass based on 100 parts by mass of the UV curable prepolymer.
  • the adhesive of the present embodiment may contain a photopolymerization initiator.
  • the photopolymerization initiator is not particularly limited, for example, any photopolymerization initiator such as an acylphosphine oxide-based photopolymerization initiator, an alkylphenone-based photopolymerization initiator, and an intramolecular hydrogen abstraction type photopolymerization initiator. Used. Among these, from the viewpoint of reactivity and uniformity of curing, the photopolymerization initiator is preferably an acylphosphine oxide-based photopolymerization initiator.
  • the photopolymerization initiator examples include 2,4,6-trimethylbenzoylphenylphosphine oxide, 2,2-dimethoxy-1,2-diphenylethan-1-one, and phenylglyoxylic acid methyl ester.
  • 2,4,6-trimethylbenzoylphenylphosphine oxide is preferred from the viewpoint of high radical generation efficiency and deep part curability.
  • the content of the photopolymerization initiator may be about 0.5 to 5.0 parts by mass based on 100 parts by mass of the UV-curable prepolymer.
  • the adhesive of the present embodiment may contain a silane coupling agent.
  • a silane coupling agent for example, any silane coupling agent such as a monomer type silane coupling agent, an alkoxy oligomer type silane coupling agent, and a polyfunctional type silane coupling agent can be used.
  • the silane coupling agent is preferably a silane coupling agent having a (meth) acrylic group ((meth) acrylic silane coupling agent), 3-acryloxypropyltrimethoxysilane is more preferred.
  • the content of the silane coupling agent may be about 0.1 to 10 parts by mass with respect to 100 parts by mass of the UV-curable prepolymer.
  • the adhesive of the present embodiment includes various fillers such as silica, alumina, and hydrated alumina, antioxidants, ultraviolet absorbers, light stabilizers, antistatic agents, leveling agents, defoamers, coloring pigments, organic solvents, and the like. , And may include additives that are usually added to the adhesive.
  • the haze after photocuring is preferably 5.0% or less, more preferably 4.0% or less, and even more preferably 3.0% or less.
  • the adhesive tends to be more excellent in transparency.
  • haze is determined by a method described in Examples described later.
  • the transmittance after photocuring is preferably 40 to 60%, more preferably 45 to 55%.
  • the adhesive tends to be more excellent in visibility while maintaining neutral gray.
  • the transmittance is determined by the method described in Examples described later.
  • the hue change ⁇ E after photo-curing is preferably 1.0 or less, more preferably 0.8 or less, and even more preferably 0.5 or less.
  • ⁇ E is within the above range, the adhesive tends to be more excellent in environmental resistance. ⁇ E is determined by a method described in Examples described later.
  • the adhesive of this embodiment is used for attaching a display.
  • the display include an electronic display such as a liquid crystal display, a plasma display, a CRT, electroluminescence, and a touch screen panel.
  • the touch screen panel is preferable because the function of the touch sensor is less likely to be impaired.
  • the adhesive of the present embodiment can effectively suppress the reflection of external light, the electronic display is preferably for a vehicle.
  • the adhesive sheet of the present embodiment includes the adhesive of the present embodiment.
  • a first base material, an adhesive layer, and a second base material are laminated in this order, and the adhesive layer is formed of the adhesive of the present embodiment.
  • the first base material and the second base material may be, for example, a known base material having releasability (for example, a PET film or the like).
  • the thickness of the adhesive sheet may be, for example, about 10 to 250 ⁇ m.
  • the obtained UV-curable prepolymer (A) had a weight average molecular weight of 50,000, a solid content concentration of 50% by mass, a double bond equivalent of 2,000 g / eq, and a Tg of 5 ° C.
  • Tg can be determined from the peak value of TAN ⁇ (tensile loss modulus E ′′ / tensile storage modulus E ′) using dynamic viscoelasticity measurement (DMA: Dynamic Mechanical Analysis). For example, it can be measured using a test piece having a width of 5 mm, a length of 50 mm, and a thickness of 0.1 ⁇ m.
  • the double bond equivalent is represented by the mass of the polymer per 1 mol of the double bond, and is calculated by the following formula.
  • Double bond equivalent (g / eq) mass (g) of (meth) acrylic polymer / molar amount of double bond (mol) of (meth) acrylic polymer
  • x 10 ⁇ Vf ⁇ 56.1 / (Wp ⁇ I) ( ⁇ ) (In the formula ( ⁇ ), x represents an acid value (mg KOH / g), Vf represents a titer (mL) of a 0.1 N KOH aqueous solution, Wp represents a measured mass (g) of the resin solution, I indicates the measured ratio of nonvolatile components in the resin solution (% by mass).)
  • Weight average molecular weight measurement method Here, the weight average molecular weight was measured by GPC using standard polystyrene having an average molecular weight of about 500 to about 1,000,000.
  • Equipment Tosoh HLC-8120GPC
  • TSKgel SuperM M and two TSKgel SuperH-2000 are connected in series. A total of three columns
  • Detector Differential refractive index detector Measurement temperature: 40 ° C
  • Examples 1 to 16 and Comparative Examples 1 to 4 The components shown in Tables 1 to 4 were added in the amounts shown in Tables 1 to 4 and stirred to obtain an adhesive (resin composition). The viscosity was adjusted while adding about 100 parts by mass of methyl ethyl ketone as a solvent during the addition. In addition, the number in Table 1 shows solid content. In the table, “4-HBA” indicates 4-hydroxybutyl acrylate, and “TPO” indicates 2,4,6-trimethylbenzoylphenylphosphine oxide.
  • the obtained adhesive was applied on release PET 50 ⁇ m so that the thickness after drying was 25 ⁇ m, and dried at 130 ° C. for 5 minutes. Then, release PET 38 ⁇ m was placed on the opposite surface to obtain an adhesive sheet. . Each physical property was evaluated using the obtained adhesive sheet. The thickness of the adhesive was determined by measuring the thickness of the entire adhesive sheet using VA-50A manufactured by Mitutoyo, and subtracting the thickness of the release PET therefrom.
  • the one-sided release PET of the obtained adhesive sheet was peeled off, and bonded to a “TAC film” made by Fuji Film with a thickness of 80 ⁇ m (40 mm square) by roll lamination. Roll lamination was performed at a temperature of 25 to 50 ° C., a pressure of 0.1 to 0.4 MPa, and a speed of 0.5 to 1.0 m / min.
  • a polycarbonate film having a thickness of 1.0 mm (40 mm square) manufactured by Mitsubishi Gas Chemical was bonded by vacuum lamination.
  • Transmissivity evaluation The same evaluation sample as that prepared in the section [Hue evaluation] was used. It was measured according to JIS K7136. ⁇ : The transmittance was within 50 ⁇ 5%. X: The transmittance was less than 45% or more than 55%.
  • the conditions are black panel temperature 63 ⁇ 3 ° C, water injection conditions (pressure 0.08 to 0.13MPa, water amount 660 ⁇ 60ml / min, injection time 12 minutes / 60 minutes, water temperature 16 ⁇ 5 ° C), relative humidity 50 ⁇ 5%, sample surface irradiance 60 ⁇ 3 W / m 2 (300 to 400 nm), 180 ⁇ 3 W / m 2 (300 to 400 nm).
  • ⁇ E [( ⁇ L * ) 2 + ( ⁇ a * ) 2 + ( ⁇ b * ) 2 ] 1/2 ⁇ ⁇ ⁇ ⁇ ⁇ E 1.0 ⁇ ⁇ ⁇ ⁇ 1.0 ⁇ E
  • Tables 1 to 4 show the evaluation results of each physical property.
  • the adhesive of the present invention has industrial applicability as an adhesive for attaching a display such as a touch screen panel.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'adhésif destiné à être appliqué sur des dispositifs d'affichage selon la présente invention présente une capacité de photopolymérisation, et contient un colorant comprenant un pigment rouge, un pigment bleu et un pigment jaune et possède, après photopolymérisation, des valeurs de a* et b*, dans le système d'espace colorimétrique CIE Lab, qui satisfont à -3,0 ≤ a* ≤ 3,0 et -3,0 ≤ b* ≤ 3,0.
PCT/JP2019/029315 2018-07-31 2019-07-25 Adhésif destiné à être appliqué sur un dispositif d'affichage WO2020026955A1 (fr)

Applications Claiming Priority (2)

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JP2018144373 2018-07-31
JP2018-144373 2018-07-31

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WO2020026955A1 true WO2020026955A1 (fr) 2020-02-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113950631A (zh) * 2020-03-04 2022-01-18 株式会社Lg化学 光学膜和包括其的显示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000265133A (ja) * 1999-03-11 2000-09-26 Tomoegawa Paper Co Ltd 電子ディスプレイ用貼着フィルム
JP2002297046A (ja) * 2001-03-30 2002-10-09 Arisawa Mfg Co Ltd 電子ディスプレイ用貼着フィルム
WO2014069542A1 (fr) * 2012-10-30 2014-05-08 旭硝子株式会社 Corps stratifié et dispositif d'affichage
WO2015015962A1 (fr) * 2013-08-01 2015-02-05 Dic株式会社 Composition de pigment pour filtre coloré et filtre coloré

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000265133A (ja) * 1999-03-11 2000-09-26 Tomoegawa Paper Co Ltd 電子ディスプレイ用貼着フィルム
JP2002297046A (ja) * 2001-03-30 2002-10-09 Arisawa Mfg Co Ltd 電子ディスプレイ用貼着フィルム
WO2014069542A1 (fr) * 2012-10-30 2014-05-08 旭硝子株式会社 Corps stratifié et dispositif d'affichage
WO2015015962A1 (fr) * 2013-08-01 2015-02-05 Dic株式会社 Composition de pigment pour filtre coloré et filtre coloré

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113950631A (zh) * 2020-03-04 2022-01-18 株式会社Lg化学 光学膜和包括其的显示装置
JP2022534874A (ja) * 2020-03-04 2022-08-04 エルジー・ケム・リミテッド 光学フィルムおよびこれを含むディスプレイ装置

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