The present application provides a foldable display device, a manufacturing method thereof, and a jig. The foldable display device includes a folding region, a non-folding region, a flexible display panel, and a functional layer attached through an adhesive layer. In a pre-bent state of the foldable display device, an angle between portions of the foldable display device corresponding to the non-folding region on two opposite sides of the folding region is greater than 0 degree and less than 180 degrees. A stress of a portion of the adhesive layer corresponding to the folding region is less than or equal to a first predetermined threshold.

A method of fabricating a composite material, the method comprises the steps of a) providing a first layer of a fibre reinforced polymer, preferably a thermoset FRP, b) providing an array of thermoplastic islands across at least a proportion of a major surface of the first layer, c) providing a second layer of a fibre reinforced polymer, preferably a thermoset FRP, d) laying the second layer over at least some of the islands, and e) securing the first and second layers together. There is also disclosed a composite which comprises a first layer of a fibre reinforced polymer and a second layer of a fibre reinforced polymer, between which is an intervening layer comprising an array of thermoplastic islands.

A structural member including a lightweight core, one or more skins, and a crosslinking nanolayer interposed therebetween that results in significant mechanical strength in the structure. The core is a polymer of reduced density by way of included voids, such as an open or closed cell foam, honeycomb, or corrugated structure. The core polymer has a lower density and may have a higher softening or melting temperature than the polymer skin materials. The core may be discontinuous at the interface with the skin such that only a small percentage of the core surface is actually in contact with the skin compared to the overall area of the interface. The skin may be a thermoplastic layer that attaches to the core material. The skin may be a composite material including non-thermoplastic reinforcements. The crosslinking nanolayer is covalently bonded to the surface of the core material and provides molecular compatibility with the skin material.

A method for manufacturing a roll of stock material for making a label having a shelf portion with pressure sensitive adhesive and a bib portion with deadened adhesive is provided. The shelf portion includes a layer of polymer. A continuous layer of paper is bonded to a continuous layer of polymer with applied strips of catalyzed adhesive from a roller. Unbonded strips of polymer are kiss-cut and removed to expose the paper between bonded strips of polymer. A continuous layer of pressure sensitive adhesive is applied over the polymer and exposed paper. Strips of deadening agent are applied over the layer of pressure sensitive adhesive that overlays the exposed paper. The pressure sensitive adhesive and deadening agent are cured and a release layer is applied over them.

The transparent conductive layer (3) includes a first main surface (5), and a second main surface (6) opposed to the first main surface (5) in a thickness direction. The transparent conductive layer (3) has a first grain boundary (7) in which two end edges (23) in a cross-sectional view are both opened to the first main surface (5) and an intermediate region (25) between the end edges (23) is not in contact with the second main surface (6); and a first crystal grain (31) partitioned by the first grain boundary (7) and facing only the first main surface (5). The transparent conductive layer (3) contains rare gas atoms having a higher atomic number than argon atoms.

A light-transmitting electroconductive film (20) according to the present invention includes a region containing krypton at a content ratio of less than 0.1 atomic % at least partially in a thickness direction (D) of the light-transmitting electroconductive film (20). A transparent electroconductive film (X) according to the present invention includes a transparent substrate (10); and the light-transmitting electroconductive film (20) disposed on one surface side in the thickness direction (D) of the transparent substrate.

A transparent electroconductive film (X) includes a resin film (11) and a light-transmitting electroconductive layer (20) in this order in a thickness direction (D). The light-transmitting electroconductive layer (20) has a first compressive residual stress in a first in-plane direction orthogonal to the thickness direction (D), and has a second compressive residual stress less than the first compressive residual stress in a second in-plane direction orthogonal to each of the thickness direction (D) and the first in-plane direction. A ratio of the second compressive residual stress to the first compressive residual stress is 0.82 or less.

The present disclosure relates to a film for bonding including an embossed surface, wherein the embossed surface has a Sku value of 5 or less, wherein the embossed surface has Sk, Spk, and Svk values, and when a total sum of the Sk value, the Spk value, and the Svk value is 100%, a sum of the Sk value and the Spk value is 50% or more, wherein the embossed surface has a Sz value of 30 to 90 μm, and wherein the film includes a polyvinyl acetal resin and a plasticizer.

A welding structure of a T-shape welding joint in which a second base material is welded in a T-shape to a first base material may include the first base material including a first flat portion, a second flat portion, and curved portions formed between the first flat portion and the second flat portion; the second base material in which a bent portion is formed at an end of a main body portion such that the bent portion is disposed to face the curved portions of the first base material; and a bead disposed between the curved portions of the first base material and the bent portion of the second base material.

A welding structure of a T-shape welding joint in which a second base material is welded in a T-shape to a first base material may include the first base material including a first flat portion, a second flat portion, and curved portions formed between the first flat portion and the second flat portion; the second base material in which a bent portion is formed at an end of a main body portion such that the bent portion is disposed to face the curved portions of the first base material; and a bead disposed between the curved portions of the first base material and the bent portion of the second base material.