Abstract: A stretchable device includes a stretchable substrate having a plurality of incision lines that are configured to be deformable by an external force applied to the stretchable substrate, a plurality of active elements on the stretchable substrate, and a connection wire configured to electrically connect adjacent active elements of the plurality of active elements, wherein the connection wire includes a metal wire and a conductive elastic structure electrically connected to the metal wire and locally disposed in the connection wire.

Abstract: A bio imaging system includes a substrate, a light source on the substrate, and a sensor on the substrate, wherein at least one of the light source or the sensor is configured to emit or absorb light of different wavelength spectrum. The bio imaging system is configured to combine a plurality of images obtained based on the light of different wavelength spectra to obtain a three-dimensional image of an internal tissue of a living body.

Abstract: Disclosed is a polymer including a first structural unit including a first electron accepting moiety and a first electron donating moiety, a second structural unit including a second electron accepting moiety and a second electron donating moiety. The second electron accepting moiety is different from the first electron accepting moiety. The second electron donating moiety is the same as or different from the first electron donating moiety. The first structural unit is represented by Chemical Formula 1. Chemical Formula 1 is described in the detailed description.

Abstract: A biosignal sensor includes a light-emitting element, a photo-detective element configured to detect a biosignal from light reflected from an in-vivo target, a first polarizer configured to selectively transmit light in a first polarization direction, and a second polarizer configured to selectively transmit light in a second polarization direction. The light-emitting element includes a first light-emitting element overlapped with the first polarizer in a vertical direction, the photo-detective element includes a first photo-detective element overlapped with the second polarizer in the vertical direction, the first light-emitting element and the first photo-detective element are parallel to each other along a first direction that is perpendicular to the vertical direction, and the first polarization direction and the second polarization direction are perpendicular to each other.

Abstract: A stretchable device system includes a stretchable layer having a first elastic modulus, a plurality of unit devices under or on the stretchable layer, and a stretch controlling layer being geometrically stretchable, the stretch controlling layer having a second elastic modulus higher than the first elastic modulus.

Abstract: A stacked structure for a stretchable device includes a stretchable layer including an elastic polymer, and a conductive layer on the stretchable layer and including a metal, wherein the stretchable layer includes a first depth region and a second depth region sequentially disposed in a depth direction from a surface of the stretchable layer that is in contact with the conductive layer and the first depth region includes the metal.

Abstract: A stretchable strain sensor includes a light-emitting element, an optical structure, and a photo-detective element. The stretchable strain sensor is located in a path of light emitted from the light-emitting element. The optical structure is configured to have optical properties that change in response to stretching of at least a portion of the stretchable strain sensor. The photo-detective element is configured to detect light transmitted through the optical structure or reflected through the optical structure.

Abstract: A biosensor includes a stretchable substrate, a pixel defining layer on the stretchable substrate and including a first pixel defining layer at least partially defining a first opening and a second pixel defining layer at least partially defining a second opening, a photo-detecting element at least partially in the first opening, and a first light emitting element at least partially in the second opening, wherein an area of the first pixel defining layer is equal to or greater than about twice an area of the first opening.

Abstract: A stretchable substrate includes a first elastomer, a plurality of unit devices on the stretchable substrate, a connecting wire configured to electrically connect adjacent unit devices, and a plurality of auxiliary structures each including a second elastomer and each at least partially overlapping with at least one unit device or the connecting wire, wherein the first elastomer and the second elastomer are separate, respective polymers that commonly include at least one structural unit.

Abstract: A bio imaging system includes a plurality of light emitters configured to irradiate light, and a plurality of sensors configured to detect light reflected by an internal tissue of a living body. Each sensor includes a plurality of photo-detecting elements having different absorption peak wavelengths in relation to each other.

Abstract: A biosignal sensor includes a light sensor, a first polarizer configured to linearly polarize incident light emitted, and a second polarizer configured to linearly polarize light flowing into the light sensor. The biosignal sensor may include a light source that may emit light in a first direction and at least partially overlaps the first polarizer in the first direction, the light sensor at least partially overlapping the second polarizer in the first direction.

Abstract: According to an embodiment of the present disclosure, there is provided a method of predicting a brain tissue lesion distribution, the method including: a model learning operation of learning a prediction model for predicting a brain tissue lesion distribution of a subject by using brain image data of a plurality of previous patients; an input obtaining operation of obtaining input data from brain image data of the subject; and an output operation of generating output image data including information on the lesion distribution after recanalization treatment for the subject, by using the prediction model. The prediction model includes a success prediction model that is learned by using data of patients in which recanalization treatment is successful among the plurality of previous patients, and a failure prediction model that is learned by using data of patients in which recanalization treatment fails among the plurality of previous patients.

Abstract: Disclosed is a biosensor including a light-emitting element, a photo-detective element, a light transmitting layer under the light-emitting element and the photo-detective element, and an optical structure inside the light transmitting layer and configured to control a propagation direction of light, a biosensor array and a device.

Abstract: Provided are an optoelectronic apparatus including an on-chip optoelectronic diode capable of receiving and emitting light, and a method of manufacturing the same.

Abstract: Disclosed are an organic semiconductor thin film, a manufacturing method thereof, and a thin film transistor and an electronic device including the organic semiconductor thin film. The organic semiconductor thin film includes a matrix. The matrix includes an elastomer and nanoconfined polymer structures embedded in the matrix. The nanoconfined polymer structures form a polymer network. The nanoconfined polymer structures include a conjugation semiconductor polymer. The conjugation semiconductor polymer includes a repeating unit having at least one conjugation system in its main chain. The nanoconfined polymer structures are present in an upper surface layer and a lower surface layer of the organic semiconductor thin film respectively.

Abstract: A polymer includes a first repeating unit and a second repeating unit forming a main chain, the first repeating unit including at least one first conjugated system, and the second repeating unit including at least one second conjugated system and a multiple hydrogen bonding moiety represented by Chemical Formula 1.

Abstract: Disclosed are a thin film transistor including a gate electrode, a semiconductor layer, a source electrode, and a drain electrode. The semiconductor layer overlaps the gate electrode. The source electrode and the drain electrode are electrically connected to the semiconductor layer. The semiconductor layer includes a first semiconductor layer including a first organic semiconductor material and a second semiconductor layer including a second organic semiconductor material. The second semiconductor layer is farther spaced apart from the gate electrode than the first semiconductor layer. A HOMO energy level of the second organic semiconductor material is different from a HOMO energy level of the first organic semiconductor material. A method of manufacturing the thin film transistor is disclosed.

Abstract: Disclosed are a thin film transistor including a gate electrode, a semiconductor layer, a source electrode, and a drain electrode. The semiconductor layer overlaps the gate electrode. The source electrode and the drain electrode are electrically connected to the semiconductor layer. The semiconductor layer includes a first semiconductor layer including a first organic semiconductor material and a second semiconductor layer including a second organic semiconductor material. The second semiconductor layer is farther spaced apart from the gate electrode than the first semiconductor layer. A HOMO energy level of the second organic semiconductor material is different from a HOMO energy level of the first organic semiconductor material. A method of manufacturing the thin film transistor is disclosed.

Abstract: A polymeric dielectric may include a coordination complex of a modified elastic polymer and a metal cation. The modified elastic polymer may include an organic ligand moiety that coordinates the metal cation in a main chain of the elastic polymer. Provided are a method of manufacturing the same, and an electronic device and a thin film transistor including the same.

Abstract: A polymer includes a first repeating unit and a second repeating unit forming a main chain, the first repeating unit including at least one first conjugated system, and the second repeating unit including at least one second conjugated system and a multiple hydrogen bonding moiety represented by Chemical Formula 1.