A circuit board according to an embodiment includes an insulating portion; and a pattern portion disposed on the insulating portion, wherein the insulating portion includes: a first insulating region, and a second insulating region disposed outside the first insulating region and spaced apart from the first insulating region with a separation region therebetween; wherein the pattern portion includes: a first pattern portion for signal transmission; and a second pattern portion including a dummy pattern separated from the first pattern portion, wherein the first pattern portion includes: a first terminal portion disposed on the first insulating region; a second terminal portion disposed on the second insulating region; and a connection portion disposed on the separation region and connecting between the first terminal portion and the second terminal portion, wherein the second pattern portion includes: a second-first pattern portion disposed on the first insulating region; and a second-second pattern portion disposed on the second insulating region and separated from the second-first pattern portion.

Provided are stretchable electronics and a method for manufacturing the same. The stretchable electronics may include a substrate, a plurality of electronic elements disposed to be spaced apart from each other on the substrate, and a wire structure disposed on the substrate to connect the plurality of electronic elements to each other. The wire structure may include an insulator extending from one of the electronic elements to the other of the adjacent electronic elements and a metal wire configured to cover a top surface and side surfaces of the insulator. The insulator may include at least one bent part in a plan view.

A substrate that is stretchable; wiring positioned on a first surface side of the substrate, the wiring having a meandering shape section including peaks and valleys aligned along a first direction that is one of planar directions of the first surface of the substrate; and a stretching control mechanism that controls extension and contraction of the substrate. The substrate has a component region and a wiring region adjacent to the component region. The component region includes a component-fixing region overlapping an electronic component mounted on the wiring board when viewed along the normal direction of the first surface of the substrate and a component-surrounding region positioned around the component-fixing region. The stretching control mechanism is positioned in the component-surrounding region and at least includes a stretching control part that spreads to the border between the component-surrounding region and the component-fixing region.

An electronic device including a flexible substrate, a plurality of light emitting units, and a plurality of supporting elements is provided. The flexible substrate has a first surface and a second surface opposite to each other. The light emitting units are disposed on the first surface. The supporting elements are disposed on the second surface. The supporting element includes an arc-shaped structure.

The present disclosure provides an electronic device and method of manufacturing the same. The electronic device includes a first region, a second region, an electronic component, and a first sensing element. The second region is adjacent to the first region. The first region has a first pliability. The second region has a second pliability. The second pliability is greater than the first pliability. The electronic component is disposed at the first region. The first sensing element is disposed at the second region and electrically connected to the electronic component.

The present invention relates, in one aspect, to a thermosetting resin composition including an epoxy resin, an isocyanate resin, a polyrotaxane resin, and a curing agent, wherein the isocyanate resin includes a hexamethylene skeleton and at least one selected from a biuret skeleton, an isocyanurate skeleton, an allophanate skeleton, a neopentyl skeleton, a butylene skeleton, and a dicarboxyl skeleton in a structure thereof.

A flexible and/or stretchable structural system for transmitting electrical signal between first and second rigid portions comprises a body structure and said first and second portions arranged to said body structure. The modulus of elasticity of said first portion is lower than the corresponding modulus of elasticity of said second portion. In addition the modulus of elasticity of said body structure is lower than the corresponding modulus of elasticity of said second portion. The system comprises also an interface portion, such as e.g. an electrically conducting fabric, textile or knit, which is arranged to said body structure and between said first and second portions. The interface portion electrically connects said first and second portions. The modulus of elasticity of said interface portion is lower than the corresponding modulus of elasticity of said second portion.

A flexible wiring board that includes a flexible substrate; a flexible wiring over the flexible substrate; and a protective layer over the flexible substrate, where the protective layer includes: a first region that overlaps with the flexible wiring and a second region that does not overlap with the flexible wiring as viewed from a thickness direction of the flexible substrate, and a low flexibility part that is higher in flexibility ratio than the first region and is disposed along an extending direction of the flexible wiring in the second region.

A sensor device adapted to suit curved surfaces includes a flexible substrate, a plurality of sensing units and a plurality of connecting lines. The flexible substrate includes a plurality of connecting sections, wherein each of the plurality of connecting sections comprises at least one closed hollow region. A plurality of sensing units, disposed on the flexible substrate and arranged in an array; and a plurality of connecting lines, disposed on the flexible substrate. Each of the plurality of connecting lines is connected to two adjacent ones of the plurality of sensing units, and the plurality of connecting sections are respectively overlapped with the plurality of connecting lines.

A stretchable substrate according to an embodiment of the present invention comprises a first modulus region which has a first modulus, a second modulus region which is located in a plane direction with respect to the first modulus region and has a second modulus higher than the first modulus, and a third modulus region which is located between the first modulus region and the second modulus region and has an interface modulus which gradually changes between the first modulus and the second modulus, wherein the interface modulus of the third modulus region may be constant in the thickness direction thereof.