C09K2323/057

Adhesive composition, adhesive layer, optical film provided with adhesive layer, image display panel, and liquid crystal display

A pressure-sensitive adhesive composition for an image display panel, a pressure-sensitive adhesive layer for an image display panel, and an optical film provided with a pressure-sensitive adhesive layer are disclosed which are free of problems regarding durability and defective appearance caused by an antistatic agent (conductive agent), and which have superior antistatic properties so as to be usable for applications such as in an image display panel. An image display panel is also disclosed in which the optical film provided with a pressure-sensitive adhesive layer is attached to the surface of the image display panel in contact with the pressure-sensitive adhesive layer without an interposed conductive layer, and a liquid crystal display device using the image display panel. Further, a liquid crystal display device is disclosed with a touch sensing function using the image display panel that can be used as various input display devices such as mobile devices.

SEALING MATERIAL COMPOSITION, LIQUID CRYSTAL CELL AND SCANNING ANTENNA
20210132423 · 2021-05-06 ·

The sealing material composition of the disclosure includes an unsaturated carbonyl compound having at least two unsaturated carbonyl groups and a curing agent that is thermally reactive with the unsaturated carbonyl compound and contains a compound having at least two of one or more kinds of functional groups selected from the group consisting of a mercaptan group, a hydroxyl group, and a secondary amine group.

Multilayer Adhesive Film

A multilayer adhesive film is provided including: a first outer adhesive layer; a second outer adhesive layer; and an intermediate adhesive layer disposed between the first outer adhesive layer and the second outer adhesive layer. The multilayer adhesive film has both high step absorbency and excellent reworkability.

Acryl-Based Adhesive Composition, Polarizing Plate, and Display Device
20210095169 · 2021-04-01 · ·

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 110.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.

Adhesive sheet
10920108 · 2021-02-16 · ·

A pressure-sensitive adhesive sheet according to the present invention includes an irradiation-curable acrylic pressure-sensitive adhesive layer. The acrylic pressure-sensitive adhesive layer includes an acrylic polymer and a multifunctional acrylic oligomer. The acrylic pressure-sensitive adhesive layer, after curing, has a Young's modulus of 500 kPa to 10000 kPa at 23 C. The acrylic pressure-sensitive adhesive layer, after curing, has an adhesive strength of 3.0 N/20 mm or more. The acrylic pressure-sensitive adhesive layer before curing may have an adhesive strength of typically 3.0 N/20 mm or more. The acrylic pressure-sensitive adhesive layer before curing may have a Young's modulus of typically 30 kPa to 200 kPa at 23 C.

Display apparatus including side sealing member and sealing composition used therein

A display apparatus includes a display panel which displays an image with light; and a side sealing member which is configured to block the light. The side sealing member contacts at least one side surface of the display panel to cover the one side surface. The side sealing member has an elongation of about 100% to about 300% inclusive.

Multilayer Adhesive Tape

The present invention relates to a multilayer adhesive tape including: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer sequentially, in which at least one of the first outer adhesive layer and the second outer adhesive layer includes a cured product of an outer adhesive composition including a high molecular weight prepolymer having a weight average molecular weight of 100,000 g/mol or more and 1,500,000 g/mol or less and a low molecular weight prepolymer having a weight average molecular weight of 1,000 g/mol or more and 80,000 g/mol or less.

Pressure-Sensitive Adhesive Composition
20210054247 · 2021-02-25 · ·

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.

Optical Laminate
20210033763 · 2021-02-04 · ·

The present application relates to an optical laminate. The present application can provide an optical laminate which can have stable durability even at a high temperature, particularly an ultra-high temperature of about 100 C. or higher, and that base material adhesiveness is excellent, other physical properties required for the optical laminate are also excellent, and even in the case of being disposed adjacent to the electrode, corrosion of the relevant electrode or the like is not induced.