C09K2323/057

Acryl-based adhesive composition, polarizing plate, and display device
11492523 · 2022-11-08 · ·

The present invention relates to an acryl-based adhesive composition containing an acryl-based copolymer, which is formed by polymerization of a monomer mixture that contains a (meth)acryl-based monomer having an acetoacetyl group, a (meth)acryl-based monomer having a hydroxy group, a (meth)acrylate monomer having an alicyclic group, and an alkyl (meth) acrylate-based monomer; and a curing agent containing a metal chelate compound and an isocyanate compound, in which the acryl-based adhesive composition has a glass transition temperature of −30° C. or greater after curing; and a polarizing plate and a display device prepared using the same.

Method for producing image display apparatus

Exemplary embodiments enable a high-luminance and high-contrast image to be displayed so that there are no defects resulting from deforming an image display part, the curable resin composition has a uniform thickness, and air bubbles are prevented in the curable resin composition. A method for producing an image display apparatus includes coating a curable resin composition onto a base and/or protective part, arranging the base and the protective part to face each other, and forming a cured resin layer between the base and the protective part, wherein the curable resin composition has a curing shrinkage ratio of 5% or less and includes polyurethane acrylate and isobornyl acrylate, and the cured resin layer has a storage modulus of 1×10.sup.7 Pa or less at 25° C. and a light transmittance in a visible region of 90% or more, and wherein the curable resin composition coated onto the base or the protective part has a pattern with a prescribed shape.

Pressure-sensitive adhesive composition
11485885 · 2022-11-01 · ·

The present application relates to a pressure-sensitive adhesive composition and a use thereof. The polarizing plate to which the pressure-sensitive adhesive composition of the present application is applied has an advantage that the performance capable of blocking the blue light, for example, the light having a wavelength region of 380 nm or more, is particularly excellent, when attached to an organic light emitting panel, especially, an organic light emitting panel comprising a plastic substrate.

Dual cure protective display film

A display film includes a transparent polymeric substrate layer and a transparent energy dissipation layer disposed on the transparent polymeric substrate layer. The transparent energy dissipation layer includes cross-linked polyurethane and a polyacrylate polymer. The transparent energy dissipation layer has a glass transition temperature of 27 degrees Celsius or less and a Tan Delta peak value of 0.5 or greater.

Image display device and circularly polarizing plate with photosensitive adhesive

An image display device which suppresses destruction of an image display panel due to static electricity carried by a phase difference film, and has excellent adhesiveness between the phase difference film and the image display panel even in a moisture-heat environment, and a circularly polarizing plate with a photosensitive adhesive. The image display device includes a circularly polarizing plate having a linear polarizer and a phase difference film, and an image display panel in this order from a viewing side, in which the phase difference film and the image display panel are bonded by a pressure-sensitive adhesive, the phase difference film has an optically anisotropic layer obtained by polymerizing a polymerizable liquid crystal composition containing at least one kind of polymerizable liquid crystal compound having a predetermined structure, and the pressure-sensitive adhesive contains a polymer having an acid value of 1 to 30 mgKOH/g and an antistatic agent.

Adhesive composition, cured product, and bonded body
11466183 · 2022-10-11 · ·

An adhesive composition which is excellent in adhesion to various hardly adhesive materials such as polyethylene terephthalate, polyethylene, polypropylene, modified polyphenylene ether, polyphenylene sulfide, and a cycloolefin polymer. Further, an adhesive composition containing the following components (A) to (C) may be described Component (A): (Meth) acrylic triblock elastomer having a weight average molecular weight of 80,000 or more, Component (B): (Meth) acrylate monomer having no hydroxyl group and having a phenoxy group, and Component (C): Radical initiator.

DISPLAY DEVICE
20220334290 · 2022-10-20 · ·

A display device includes a display panel and a cover window on the display panel, and the cover window includes a cover glass, a flame retardant layer, and a functional coating layer, and a cover window having a flame retardant characteristic and an anti-scattering characteristic by using a flame retardant layer is used to improve the durability and the heat-resistance of the display device.

Adhesive film for polarizing plate, polarizing plate comprising the same, and optical display apparatus comprising the same

An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display apparatus including the same are provided. An adhesive film for polarizing plates includes: a (meth)acrylic copolymer, a curing agent, a (meth)acrylic oligomer, and an antistatic agent, and has a modulus of about 0.5 MPa or more at about 25° C. and a surface resistance difference ΔSR of about 1.0 log (Ω/□) or less, as calculated by Equation 1 herein.

Frame-sealing agent, display panel and display device

The invention discloses a frame-sealing agent, a display panel and a display device. The frame-sealing agent comprises an acrylic resin, an epoxy resin, a thermal curing agent and an ultraviolet photoinitiator, wherein the frame-sealing agent further comprises a compound which decomposes to produce a gas under a condition of light irradiation, heating or high temperature. In the invention, by providing a compound that decomposes to produce a gas under a condition of light irradiation, heating or high temperature, when the frame-sealing agent is cured, the compound decomposes to produce a gas with the effect of light irradiation, heating or high temperature. The light leak of the display screen at the position of backlight is obstructed by the gas. Additionally, the pressure of the gas can retard the diffusion of liquid crystal molecules, so that the contamination of the liquid crystal caused by the too early contact between the liquid crystal and the frame-sealing agent and the relevant display badness are avoided.

OPTICAL FILM WITH ADHESIVE LAYER, IMAGE DISPLAY PANEL AND IMAGE DISPLAY DEVICE

A pressure-sensitive adhesive layer attached optical film is disclosed, including a one-side-protected polarizing film including a thin polarizer and a transparent protective film (excluding a retardation film) on one surface of the polarizer, and the pressure-sensitive adhesive layer is provided on a side of the one-side-protected polarizing film on which the transparent protective film is not provided, and the pressure-sensitive adhesive layer is formed of a pressure-sensitive adhesive composition including a (meth)acrylic polymer (A) containing 80 mass % or more of a prescribed monomer (a) as a monofunctional monomer unit and 20 mass % or more of n-butyl acrylate or 70 mass % or more of an alkoxyalkyl (meth)acrylate are contained as the prescribed monomer (a), and a silane coupling agent (B), not containing polyether compound having a polyether skeleton and a reactive silyl group.