B32B2457/202

Stretchable films, methods of manufacturing the same and display devices including the same

A display device including a flexible base substrate; a pixel circuit and a light emitting structure sequentially disposed on the flexible base substrate; and a stretchable film attached on a bottom of the flexible base substrate. The stretchable film includes a first region and a second region, which are divided according to curvatures of an object, and at least one of different patterns and different disposed structures are arranged in each of the first region and the second region.

Adhesive composition and polarizing plate comprising adhesive layer formed using same

An adhesive composition and a polarizing plate including an adhesive layer formed using the same are disclosed herein. In some embodiments, an adhesive composition includes 3-ethyl-3-(2-ethylhexyloxy)methyloxetane, 3-ethyl-3-hydroxymethyloxetane, 3,3′-oxybis(methylene)bis(3-ethyloxetane), an acryl-based compound, an aromatic epoxy compound, and an alicyclic epoxy compound, wherein the 3-ethyl-3-(2-ethylhexyloxy)methyloxetane is present in an amount of 20 parts by weight to 40 parts by weight, the 3-ethyl-3-hydroxymethyloxetane is present in 2 parts by weight to 8 parts by weight, the 3,3′-oxybis(methylene)bis(3-ethyloxetane) is present in 2 parts by weight to 8 parts by weight, the acryl-based compound is present in 5 parts by weight to 20 parts by weight, the aromatic epoxy compound is present in 7 parts by weight to 40 parts by weight, and the alicyclic epoxy compound is present in 10 parts by weight to 50 parts by weight, based on 100 parts by weight of the adhesive composition.

Display device using adhesion control layer
11511516 · 2022-11-29 ·

Provided is a display device using an adhesion control layer, which has excellent scratch-resistance, easily discharges air bubbles, allows proper attachment and detachment, and is stably attached regardless of whether a surface is flat or curved. The device comprises: an adhesive member; an adherend member to which the adhesive member is attached; a detachable layer disposed on one of the adhesive member and the adherend member; and an adhesion control layer to which the detachable layer is detachably attached and which is disposed on one of the adhesive member and the adherend member. The adhesion control layer is disposed on one surface of one of the adhesive member and the adherend member and includes a flat layer covering the whole of the surface and a pattern layer disposed on the flat layer, and the flat layer and the pattern layer have different adhesive forces with respect to the detachable layer.

OPTICAL BODY INCLUDING MULTILAYER OPTICAL FILM AND THIN ADHESIVE LAYER

Optical bodies are described. In particular, optical bodies having a birefringent multilayer optical film and a continuous adhesive layer with a thickness less than 20 micrometers are described. Optical bodies described herein exhibit reduced occurrence and severity of a non-uniformity defect known as “orange peel.”

Optical film stack including retardation layer

Optical film stacks are described. More particularly, optical film stacks including a half-wave retardation layer are described. Achromatic half-wave retardation layers, including achromatic half-wave layers formed from a quarter-wave and a three-quarters-wave retardation layer, are described. Film stacks including reflective polarizers tuned to reduce wavelength dispersion of the half-wave retardation layer are also described.

Adhesive composition and polarization plate comprising adhesive layer formed using same

An adhesive composition including a first epoxy-based compound, a second epoxy-based compound, an oxetane compound, and a diacrylate-based compound is provided. A polarizing plate includes a polarizer, an adhesive layer provided on at least one surface of the polarizer and formed using the adhesive composition, and a protective film provided on at least one surface of the adhesive layer. An image display device using the polarizing plate is also provided.

Adhesive composition and polarizing plate comprising adhesive layer formed using same

An adhesive composition and a polarizing plate including an adhesive layer formed using the same are disclosed herein. In some embodiments, an adhesive composition includes 3-ethyl-3-(2-ethylhexyloxy)methyloxetane, 3-ethyl-3-hydroxymethyloxetane, 3,3′-oxybis(methylene)bis(3-ethyloxetane), an aromatic epoxy compound, and an alicyclic epoxy compound, wherein the 3-ethyl-3-(2-ethylhexyloxy)methyloxetane is present in an amount of 20 parts by weight to 50 parts by weight, the 3-ethyl-3-hydroxymethyloxetane is present in an amount of 2 parts by weight to 8 parts by weight, the 3,3′-oxybis(methylene)bis(3-ethyloxetane) is present in an amount of 2 parts by weight to 8 parts by weight, the aromatic epoxy compound is present in an amount of 7 parts by weight to 38 parts by weight, and the alicyclic epoxy compound is present in amount of 10 parts by weight to 50 parts by weight, based on 100 parts by weight of the adhesive composition.

Polyurethane article and methods of making the same
11591436 · 2023-02-28 · ·

Articles are provided including at least one polyurethane prepared from: (a) about 1 equivalent of at least one polyisocyanate; (b) about 0.005 to about 0.35 equivalent of at least one polycaprolactone polyol; (c) about 0.01 to about 1.0 equivalent of at least one polyol selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,2-ethanediol, propanediol, butanediol, pentanediol, hexanediol, heptanediol, octanediol, nonanediol, decanediol, dodecane diol, octadecanediol, cyclopentanediol, 1,4-cyclohexanediol, cyclohexanedimethanol, 1,4-benzenedimethanol, xylene glycol, hydroxybenzyl alcohol, dihydroxytoluene, bis(2-hydroxyethyl) terephthalate, 1,4-bis(hydroxyethyl)piperazine, N,N′,bis(2-hydroxyethyl)oxamide and mixtures thereof; and (d) about 0.01 to about 0.5 equivalent of at least one polyol selected from the group consisting of glycerol, tetramethylolmethane, trimethylolethane, trimethylolpropane, erythritol, pentaerythritol, dipentaerythritol, tripentaerythritol, sorbitan, and mixtures thereof, each based upon the about 1 equivalent of the at least one polyisocyanate, wherein the article has a Gardner Impact strength of at least about 400 in-lb according to ASTM D-5420-04.

ELECTRICALLY DIMMABLE GLAZING

The present invention relates to a specific multilayer composite which is suitable as a constituent of liquid-crystal devices and which contains two specific polycarbonate layers inter alia. The invention further relates to a method of producing the multilayer composite. The invention further relates to a liquid-crystal device comprising a multilayer composite according to the present invention, to a method of production thereof, and to the use thereof as structural glazing, in automotive glass, as floodlight cover, in optical filters, in shutters, in flat visual display screens, in glazed advertising devices, in dividing walls of trains, and in point-of-interest devices.

METHOD FOR MANUFACTURING OPTICAL DEVICE
20220365388 · 2022-11-17 · ·

Provide is a method for manufacturing an optical device capable of filling a curable resin composition without protrusion to the periphery even in a manufacturing process of the optical device using a transparent panel having a curved surface shape. The method includes: filling a lamination side of a transparent panel having a curved surface shape with a curable resin composition, curing the curable resin composition filling the lamination side to form a first cured resin layer, forming a dam member on an optical member, laminating the transparent panel and the optical member to form a laminate having a resin filling space surrounded by the dam member, filling the resin filling space with the curable resin composition, precuring the curable resin composition filled in the resin filling space to form a precured resin layer, and final curing the precured resin layer.