Samsung Electronics Co., Ltd.

Don-Wook Lee

Jeong Il Park

Eun Kyung Lee

Joo Young Kim

Youngjun Yun

Young Jun Hong

Hyun Bum Kang

Eigo Miyazaki

Yasutaka Kuzumoto

Sung Jun Park

Sang Joon Kim

Yong Wan Jin

Kyung Bae Park

Gae Hwang Lee

Kitae Park

Sung Young Yun

Chul Joon Heo

Yeong Suk Choi

Taejin Choi

Eunkyung Lee

Chul Baik

Jiyoung Jung

Bok Soon Kwon

Ji Soo Shin

Young Suk Jung

Suk Gyu Hahm

Hyun-ryoung Kim

Jung-yong Nam

Eun-sung Park

An electrical stimulation apparatus includes: a cell cluster container comprising a cell cluster configured to secrete an active material; an indicator container comprising an indicator; a controller configured to apply a stimulation voltage to the cell cluster container based on a sensing signal received from the indicator container; a first entrance connected to the cell cluster container and configured to allow either one or both of the cell cluster to be retracted and a new cell cluster to be injected; and a second entrance connected to the indicator container and configured to allow either one or both of the indicator to be retracted and a new indicator to be injected.

Apparatus and method with electrical stimulus

An electrical stimulation device includes a terminal electrode having an opening at a center thereof, a ground electrode having an area smaller than that of the terminal electrode, and a power source connected to the terminal electrode and the ground electrode and configured to apply an electrical stimulus to an object disposed between the terminal electrode and the ground electrode by applying a terminal voltage to the terminal electrode.

Electrical stimulation device

A stretchable device includes a substrate, the substrate including first regions having a first stiffness and a second region between adjacent first regions and having a second stiffness that is lower than the first stiffness, a unit device array including unit devices on separate, respective first regions of the substrate, and an encapsulant covering the unit device array. The unit device array includes pixel electrodes isolated on separate, respective first regions of the substrate, common electrodes isolated on separate, respective first regions and each facing a separate pixel electrode, the stretchable device configured to apply a same voltage to the plurality of common electrodes, and active layers on separate, respective first regions and each between a separate pixel electrode and a separate common electrode.

Stretchable devices, display panels, sensors, and electronic devices

Disclosed are an apparatus for measuring an in-situ crosslink density includes a support configured to fix or support a cross-linkable structure, a light source configured to irradiate light for crosslinking to the cross-linkable structure, and a probe configured to provide in-situ micro-deformation to the cross-linkable structure, wherein the in-situ crosslink density of the cross-linkable structure is measured from a stress-strain phase lag of the cross-linkable structure by the in-situ micro-deformation, a method of measuring the in-situ crosslink density, a method of manufacturing a crosslinked product, a crosslinked product obtained by the method, and a polymer substrate and an electronic device including the crosslinked product.

Apparatus and method for measuring in-situ crosslink density and crosslinked product and method of forming the same

A photoelectric conversion device includes a first electrode and a second electrode facing each other, a photoelectric conversion layer between the first electrode and the second electrode and configured to absorb light in at least one part of a wavelength spectrum of light and to convert it into an electric signal, and an organic auxiliary layer between the first electrode and the photoelectric conversion layer and having a higher charge mobility than a charge mobility of the photoelectric conversion layer. An organic sensor may include the photoelectric conversion device. An electronic device may include the organic sensor.

Photoelectric conversion devices and organic sensors and electronic devices

Disclosed are a polymer including at least one structural unit with a moiety represented by Chemical Formula 1, an organic thin film including the polymer, a thin film transistor, and an electronic device.  In Chemical Formula 1, Arto Ar, L, L, and Rto Rare the same as described in the detailed description.

Polymer and organic thin film and thin film transistor and electronic device

Disclosed are a compound represented by Chemical Formula 1A or 1B, an organic thin film including the same, a thin film transistor, and an electronic device.  In Chemical Formulae 1A and 1B, X, X, Rto R, and n1 are the same as described in the detailed description.

Compound and thin film transistor and electronic device

A fused polycyclic heteroaromatic compound represented by Chemical Formula 1, and an organic thin film, an organic thin film transistor, and an electronic device including the fused polycyclic heteroaromatic compound are provided. The fused polycyclic heteroaromatic compound may have a conjugation structure but reinforce planarity among adjacent rings and have further dense packing and thus much increase charge mobility.

Fused polycyclic heteroaromatic compound and organic thin film and electronic device

Disclosed are a compound represented by Chemical Formula 1A or 1B, an organic thin film, a thin film transistor, and an electronic device.  In Chemical Formulae 1A and 1B, X, Ar, Rto R, and nare the same as described in the detailed description.

Disclosed are an organic thin film includes a first compound represented by one of Chemical Formula 1A and 1B and a second compound different from the first compound and represented by one of Chemical Formulae 2A and 2B, an organic thin film transistor, and an electronic device.

Organic thin film and organic thin film transistor and electronic device

Disclosed are a compound represented by Chemical Formula 1A or 1B, an organic thin film including the same, a thin film transistor, and an electronic device. In Chemical Formula 1A or 1B, X, X, Ar, Rto R, and nare the same as described in the detailed description.

Compound and organic thin film and thin film transistor and electronic device

Disclosed are an organic compound selected from a compound represented by Chemical Formula 1A, a compound represented by Chemical Formula 1B, and a combination thereof, an organic thin film including the organic compound, an organic thin film transistor, and an electronic device. The organic compound has liquid crystal properties and exhibits an ordered liquid crystal phase when being heated in a liquid crystal period due to asymmetric substituents and thereby charge mobility may be further improved.

Organic compound, organic thin film, and electronic device

A synthetic method of a fused heteroaromatic compound includes preparing a first intermediate represented by Chemical Formula 1, obtaining a second intermediate by reacting the first intermediate and an aldehyde compound, obtain a third intermediate by performing deprotection and reduction reactions on the second intermediate, and obtaining a fused heteroaromatic compound by performing a cyclization reaction on the third intermediate.

Synthetic method of fused heteroaromatic compound and fused heteroaromatic compound and intermediate therefor

A nanoparticle including a hydrophobic active ingredient and a polypeptide, as well as a liposome including the nanoparticle and methods of making and using the nanoparticle.

Growing community of inventors

Seoul, South Korea

Don-Wook Lee