A display device includes a display member configured to display an image in a first direction and a cover member on the display member. The cover member includes a flexible member including a front part defining a front plane perpendicular to the first direction, and a first side part connected to a first side of the front part and defining a first side plane different from the front plane, and a rigid member partially overlapping the flexible member and on the front part.

A display device includes a display member configured to display an image in a first direction and a cover member on the display member. The cover member includes a flexible member including a front part defining a front plane perpendicular to the first direction, and a first side part connected to a first side of the front part and defining a first side plane different from the front plane, and a rigid member partially overlapping the flexible member and on the front part.

Provided is a heat-shrinkable polyester film which has heat shrinkage properties in a main shrinkage direction in the longitudinal direction, a small variation in shrinkage in the width direction, and less likely generated wrinkles and strains at the time of shrinkage finishing. The polyester film is prepared from a polyester raw material resin comprising 50 mol % or more of an ethylene terephthalate unit in 100 mol % of constituent units of a polyester, diol components selected from aliphatic, alicyclic, and aromatic diols, and an amorphous monomer component that is 2% or more in 100 mol % of either a polyhydric alcohol component or a polybasic carboxylic acid component in the whole polyester resin, wherein the polyester does not contain polybasic carboxylic acids of tribasic or more, and the polyester film is obtained by uniaxial drawing in the longitudinal direction.

Variably porous panels and panel assemblies incorporating shape memory alloy components along with methods for actuating the shape memory alloys are disclosed to predictably alter the porosity of a substrate surface, with the shape memory alloy maintained in an orientation relative to the panel that is in-plane with a mold-line of the panel outer surface.

Variably porous panels and panel assemblies incorporating shape memory alloy components along with methods for actuating the shape memory alloys are disclosed to predictably alter the porosity of a substrate surface, with the shape memory alloy maintained in an orientation relative to the panel that is in-plane with a mold-line of the panel outer surface.

The invention provides an amorphous copolymerized polyester raw material for a film, wherein the copolymerized polyester raw material (1) contains ethylene terephthalate as a main constituent component, and neopentyl glycol by 15-30 mol % when a total amount of glycol component in a total polyester resin component is taken as 100 mol %, (2) contains a constituent unit derived from diethylene glycol by 7-15 mol % in the total amount of glycol component 100 mol % in the total polyester resin component, (3) has an intrinsic viscosity of 0.60 dl/g or more and less than 0.70 dl/g, and (4) has a glass transition temperature of 60-70° C. The invention also provides a heat-shrinkable polyester-based film containing the amorphous copolymerized polyester raw material, as well as a heat-shrinkable label and a packaging bag.

Systems and processes that integrate thermoplastic and shape memory alloy materials to form an adaptive composite structure capable of changing its shape. For example, the adaptive composite structure may be designed to serve as a multifunctional adaptive wing flight control surface. Other applications for such adaptive composite structures include in variable area fan nozzles, winglets, fairings, elevators, rudders, or other aircraft components having an aerodynamic surface whose shape is preferably controllable. The material systems can be integrated by means of overbraiding (interwoven) with tows of both thermoplastic and shape memory alloy materials or separate layers of each material can be consolidated (e.g., using induction heating) to make a flight control surface that does not require separate actuation.

The present invention relates to a STEM with secondary curvature in extension and to methods of manufacture. In an aspect, an extendible member (10) is provided which is configurable between a coiled form (11) and an extended form (12). The member comprises a longitudinal shell resiliently biased in a slit tube form in which it has a first curvature relative to the hoop of slit tube and has a secondary curvature relative to the longitudinal axis of the member. The slit tube can be opened out at the slit to assume an open form in which it has a flattened cross section in transitioning from the extended form to the coiled form. The strain energy when coiled is lower than the peak strain energy in the member when transitioning from the extended to the coiled form.

The tube is stretchable. The tube is stretched by applying tension in a longitudinal direction. The tube returns to its short state by releasing the above-described tension applied in the longitudinal direction. A plurality of protrusions are formed on an inner surface of the tube. Each of the plurality of protrusions extends in a circumferential direction. The plurality of protrusions are arranged side by side in the longitudinal direction of the tube. A pitch of the protrusions is less than or equal to 1.5 μm.

The invention provides a polyester resin for heat-shrinkable film which contains terephthalic acid as a main component of a dicarboxylic acid component, contains ethylene glycol as a main component of a diol component, and contains from 18 to 32% by mol of neopentyl glycol and from 8 to 16% by mol of diethylene glycol when a total amount of the whole diol component in total polyester resin components is taken as 100% by mol. The polyester resin has an intrinsic viscosity (IV) of from 0.70 to 0.86 dl/g, a carboxyl end group concentration (AV) of from 8 to 25 eq/t, and a color b value of from 1.0 to 12.0 in an L*a*b color system. The invention also provides a heat-shrinkable film prepared from the aforementioned polyester resin, as well as a heat-shrinkable label and packaged product.