Patent classifications
B32B2457/202
Display device
A display device includes a display panel including first and second unfolding areas, and a folding area therebetween, a first support member and a second support member disposed on a back surface of the display panel and spaced apart from each other with the folding area therebetween, a first barrier sheet partially fixed to a back surface of the first support member and extending to a back surface of the second support member, and a second barrier sheet partially fixed to the back surface of the second support member, extending to the back surface of the first support member, and covering the first barrier sheet. Each of the first barrier sheet and the second barrier sheet overlaps the first support member, the folding area, and the second support member, and the first barrier sheet is accommodated in a space between the second barrier sheet and the second support member.
TRANSPARENT DOUBLE-SIDED SELF-ADHESIVE SHEET
A transparent double-sided self-adhesive sheet is provided which, when bonding to an adherend, not only excels in the ability to conform to steps or surface irregularities caused by a printing site, but also excels in workability such as cutting processability. A transparent double-sided self-adhesive sheet is proposed, having an intermediate resin layer (A) and pressure-sensitive adhesive layers (B) as front and reverse side layers, each of the layers being a layer having one or more species of (meth)acrylic acid ester series (co)polymer as the base resin, in which transparent double-sided self-adhesive sheet, the shear storage elastic modulus (G′(A)) at a frequency of 1 Hz of the intermediate resin layer (A) is higher than the pressure-sensitive adhesive layers (B) in a temperature range of 0° C. to 100° C., and, the indentation hardness (ASKER C2 hardness) of the entire sheet is 10 to 80.
ENCAPSULANT SHEET FOR SELF-LUMINOUS DISPLAY OR ENCAPSULANT SHEET FOR DIRECT BACKLIGHT, SELF-LUMINOUS DISPLAY, AND DIRECT BACKLIGHT
An encapsulant sheet suitable for encapsulating a light-emitting element in a self-luminous display, etc. A resin sheet having a polyolefin as a base resin, wherein the resin sheet is created as an encapsulant sheet for a self-luminous display or for a direct backlight, the melt viscosity of the encapsulant sheet, at a shear velocity of 2.43×10 sec.sup.−1 and measured at a temperature of 120° C., being 5.0×10.sup.3 poise to 1.0×10.sup.5 poise inclusive.
BARRIER FILM, WAVELENGTH CONVERSION SHEET USING SAME, BACKLIGHT AND LIQUID CRYSTAL DISPLAY DEVICE
Provided is a barrier film that can suppress a change in color when applied to a wavelength conversion sheet. A barrier film for a wavelength conversion sheet, comprising an inorganic oxide layer A, an organic coating layer B, an inorganic oxide layer C, and an organic coating layer D in presented order on a light-transmitting base material; wherein refractive indexes of the inorganic oxide layer A, the organic coating layer B, the inorganic oxide layer C, and the organic coating layer D are defined as n.sub.A, n.sub.B, n.sub.C, and n.sub.D, respectively; thicknesses of the organic coating layer B and the organic coating layer D are defined as t.sub.B and t.sub.D, respectively; n.sub.A and n.sub.C are larger than n.sub.B and n.sub.D; and d.sub.1 represented by the following expression 1 represents a range of x±0.10 wherein x is an integer of 2 to 13.
d.sub.1=n.sub.B×t.sub.B/112.5 nm+n.sub.D×t.sub.D/112.5 nm (Expression 1)
CURVED DISPLAY DEVICE MANUFACTURING METHOD
The present invention provides a curved display device manufacturing method comprising the steps of: coupling a flat display, a transparent adhesive layer, and flat cover glass, thereby manufacturing a flat display assembly; applying an adhesive to the edge of the flat display assembly; seating the flat display assembly on a curved jig; adsorbing the flat display assembly onto the surface of the curved jig by using vacuum holes formed in the curved jig such that the flat display assembly is bent; and coupling a backlight unit to the adhesive-applied area. The step of coupling a backlight unit to the adhesive-applied area comprises a step of curing the adhesive in a state in which the backlight unit is forced against the display assembly such that the display assembly remains bent.
Polyurethane Hot Melt Adhesive Composition, and Preparation Method Thereof
The present invention provides a hotmelt adhesive composition, comprising (A) at least one polyurethane prepolymer obtained by reacting (A1) polyols comprising: (a) at least one polyester polyol, and (b) at least one polyether polyol, with (A2) at least one polyisocyanate having at least two isocyanate groups in one molecule; (B) at least one thermoplastic resin; and (C) at least one aspect ratio promoter in an amount of no more than 10% by weight based on the total weight of the composition.
Method for manufacturing laminated glass, laminated glass and light control film
A method for manufacturing a laminated glass whereby, in a laminated glass comprising a liquid crystal film sandwiched therein and having a three-dimensionally curved surface shape, the formation of wrinkles in the liquid crystal film can be suppressed; and a laminated glass which has a three-dimensionally curved surface shape and in which wrinkles in a liquid crystal film sandwiched therein are suppressed. The method for manufacturing the laminated glass comprises: a heat molding step for heating the liquid crystal film to a temperature higher than the glass transition point of the first base material layer and the second base material layer; and a bonding step for, after completing the heat molding step, heating the laminate, wherein the liquid crystal film is sandwiched between the first glass sheet and the second glass sheet, at a temperature lower than the glass transition point and bonding the same by applying a preset pressure.
ANTI-REFLECTIVE FILM-ATTACHED TRANSPARENT SUBSTRATE AND IMAGE DISPLAY DEVICE
An anti-reflective film-attached transparent substrate includes: a transparent substrate including two main surfaces; and a diffusion layer and an anti-reflective film on one main surface of the transparent substrate, which are provided in this order. The anti-reflective film-attached transparent substrate satisfies (A) a luminous transmittance is 20% to 90%, (B) a transmission color b* value under a D65 light source is 5 or less, (C) a luminous reflectance (SCI Y) of an outermost layer of the anti-reflective film is 0.4% or less, (D) a sheet resistance of the anti-reflective film is 10.sup.4 Ω/square or more, (E) the anti-reflective film has a laminated structure in which at least two dielectric layers having different refractive indices are laminated, and (F) a Diffusion value is 0.2 or more and a diffused light brightness (SCE L*) is 4 or less.
Low refractive layer and electronic device including the same
A low refractive layer includes a plurality of hollow inorganic particles and a matrix between the hollow inorganic particles, and capable of exhibiting a good refractive index and improved durability by enhancing the weight ratio of the hollow inorganic particles to the matrix. An electronic device according to an embodiment of the inventive concept including the low refractive layer may exhibit improved reliability and good display quality.
Regioselectively substituted cellulose esters and films made therefrom
Regioselectively substituted cellulose esters having a plurality of pivaloyl substituents and a plurality of aryl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in films, such as +A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.