Samsung Electronics Co., Ltd.

Sujin Park

Eun Joo Jang

Dae Young Chung

Tae Hyung Kim

Yuho Won

Moon Gyu Han

Hongkyu Seo

Kwanghee Kim

Sung Woo Kim

Kyungmin Kim

Jin A Kim

Oul Cho

Yong Seok Han

Hyunggon Kim

Chungsoon Park

Byungjoo Go

Hyunju Sung

Heesung Kam

Jeong Hee Lee

Kun Su Park

Tae-young Kang

Ha Il Kwon

Kihyun Yoon

Hyunjoo Kang

Tae-Young Ha

Jaeyeon Rho

Jaemo Choi

Heejae Chung

Chang-Youl Lee

In-Don Ju

Yongsoung Lee

A semiconductor device includes a stack structure including interlayer insulating layers and horizontal layers on a lower structure; a memory vertical structure vertically penetrating the stack structure; first and second barrier structures penetrating the stack structure in parallel; a supporter pattern penetrating the stack structure; and through contact plugs penetrating the stack structure. The first barrier structure includes first barrier patterns arranged in a first direction and spaced apart from each other, and second barrier patterns arranged in the first direction and spaced apart from each other. Each of the first and second barrier patterns includes a linear shape extending in the first direction. In a first barrier pattern and a second barrier pattern adjacent to each other, a portion of the first barrier pattern opposes a portion of the second barrier pattern in a second direction perpendicular to the first direction.

Semiconductor device with vertical patterns and data storage system including the same

An electroluminescent display device and a light emitting device including a blue light emitting layer include a first electrode, a second electrode, and a light emitting layer between the first electrode and the second electrode. The light emitting layer includes a blue light emitting layer including a plurality of nanostructures, the plurality of nanostructures does not include cadmium. On an application of a bias voltage, the blue light emitting layer is configured to emit light of an emission peak wavelength (λ) in a range of greater than or equal to about 445 nm and less than or equal to about 480 nm. During a bias voltage change from a first voltage to a second voltage, the second voltage being greater than the first voltage by at least about 5 volts, the emission peak wavelength (λ) of the blue light emitting layer may exhibit a first emission peak wavelength (a 1λwavelength) that is less than an emission peak wavelength at the first voltage (λ@first voltage) and an emission peak wavelength at the second voltage (λ@second voltage), and during the bias voltage change, a change width in emission peak wavelength (λ) is less than or equal to about 4 nm.

Display device and light emitting device

An electronic device is provided comprising: a biometric sensor, including at least one light emitting diode (LED) and at least one light receiving unit, for acquiring biometric information by means of the at least one light emitting device and the at least one light receiving unit; a power receiving circuit configured to receive a wireless power signal from an external electronic device; and a processor operatively coupled to the biometric sensor and the power receiving circuit. The processor may be configured to receive a designated wireless power signal from the external electronic device by using the power receiving circuit and to perform optical communication with the external electronic device by using the biosensor when the designated wireless power signal is received. Other various embodiments identified from the specification are also possible.

Method for performing wireless communication by using biosensor and electronic device therefor

Disclosed is an electronic device comprising: a biometric sensor, including at least one light emitting diode (LED) and at least one light receiving unit, for acquiring biometric information by means of the at least one light emitting device and the at least one light receiving unit; a power receiving circuit configured to receive a wireless power signal from an external electronic device; and a processor operatively coupled to the biometric sensor and the power receiving circuit. The processor may be configured to receive a designated wireless power signal from the external electronic device by using the power receiving circuit and to perform optical communication with the external electronic device by using the biosensor when the designated wireless power signal is received. Other various embodiments identified from the specification are also possible.

A quantum dot including a semiconductor nanocrystal core including indium (In) and phosphorus (P) and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the semiconductor nanocrystal shell including zinc (Zn) and selenium (Se), wherein the semiconductor nanocrystal shell is doped with a dopant metal having a larger ion radius than a radius of an Znion, the quantum dot does not include cadmium, and the quantum dot has a quantum efficiency of greater than or equal to about 70% and a full width at half maximum (FWHM) of an emission peak of less than or equal to about 40 nanometers (nm), and an electroluminescent device including the same.

Core-shell quantum dots having high quantum efficiency, and an electronic device including the same

Semiconductor device, with support and barrier patterns in connection regions, and data storage system including the same

An electroluminescent device includes a first electrode and a second electrode facing each other; a hole transport layer between the first electrode and the second electrode; a light emitting layer including a first light emitting layer disposed between the hole transport layer and the second electrode and including a first quantum dot and a second light emitting layer between the first light emitting layer and the second electrode and including a second quantum dot; and an electron transport layer between the light emitting layer and the second electrode. Each of the first and second light emitting layers emits first light, hole transport capability per unit area and electron transport capability per unit area of the first quantum dot are greater than hole transport capability per unit area and electron transport capability per unit area of the second quantum dot, respectively.

Electroluminescent device, and display device comprising thereof

An electroluminescent device including a first electrode, a hole transport layer disposed on the first electrode, a first emission layer disposed on the hole transport layer, the first emission layer including a first light emitting particle on which a first ligand and a second ligand having a hole transporting property are attached, a second emission layer disposed on the first emission layer, the second emission layer including a second light emitting particle on which a first ligand and a third ligand having an electron transporting property are attached, an electron transport layer disposed on the second emission layer, and a second electrode disposed on the electron transport layer, wherein a solubility of the second ligand in a solvent is different than a solubility of the third ligand in the solvent and a display device including the same.

Quantum dots including semiconductor nanocrystals, methods of producing the same, and quantum dot solutions and electronic devices including the same. The quantum dots do not include cadmium, lead, or a combination thereof. The quantum dots include an organic ligand and a halogen on the surfaces, and the quantum dots are dispersible in an organic solvent to form organic solutions.

Quantum dots and quantum dot solutions

An electroluminescent device includes a first electrode and a second electrode facing each other; a hole transport layer between the first electrode and the second electrode; a light emitting layer including a first light emitting layer disposed between the hole transport layer and the second electrode and including a first quantum dot and a second light emitting layer between the first light emitting layer and the second electrode and including a second quantum dot; and an electron transport layer between the light emitting layer and the second electrode. Each of the first and second light emitting layers emits first light, each of the first and second quantum dots has a core-shell structure including one or more shells, and the first and second quantum dots have different numbers of shells from each other or have different total thicknesses of the one or more shells from each other.

A light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and an electron auxiliary layer disposed between the emission layer and the second electrode, the electron auxiliary layer including nanoparticles and a small molecule organic compound and a display device including the same. The nanoparticles include a metal oxide including zinc, and an electron mobility of the small molecule organic compound is less than an electron mobility of the nanoparticles.

Light emitting device and display device including the same

An electroluminescent device including a first electrode, a hole transport layer disposed on the first electrode, a first emission layer disposed on the hole transport layer, the first emission layer including a first light emitting particle on which a first ligand having a hole transporting property is attached, a second emission layer disposed on the first emission layer, the second emission layer including a second light emitting particle on which a second ligand having an electron transporting property is attached, an electron transport layer disposed on the second emission layer, and a second electrode disposed on the electron transport layer, wherein a solubility of the first ligand in a solvent is different than a solubility of the second ligand in the solvent and a display device including the same.

Disclosed are an electronic device and an operation method thereof according to various embodiment, the method comprising: reproducing first content on a first display unit having variable transparency; detecting an object in response to the first display unit; controlling transparency in at least a partial area of the first display unit on the basis of the object; and reproducing second content on a second display unit, disposed to be spaced from the first display unit.

Electronic device and operation method thereof

A quantum dot device includes a first electrode and a second electrode facing each other, a quantum dot layer disposed between the first electrode and the second electrode and comprising a plurality of quantum dots, a first charge auxiliary layer disposed between the first electrode and the quantum dot layer and contacting the quantum dot layer, and a second charge auxiliary layer disposed between the second electrode and the quantum dot layer and contacting the quantum dot layer, wherein the plurality of quantum dots includes a quantum dot including an organic ligand on a surface thereof, the organic ligand including a hydrophilic functional group at a terminal end.

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Seoul, South Korea

Sujin Park