Lg Electronics Inc.

Samsung Electronics Co., Ltd.

Lg Display Co., Ltd.

Postech Academy-industry Foundation

Sungkyunkwan University

Daegu Gyeongbuk Institute of Science and Technology

Sn Display Co., Ltd.

Mercury Corporation

Other

Seoul National University

Snu Rdb Foundation

Qd Solar Inc.

Kookmin University Industry Academy Cooperation Foundation

Younghoon Kim

Kunho Lee

Hana Jeong

Kwanju Jung

Himchan Cho

Taewoo Lee

Sanghyuk Im

JoongMin Yoon

Jongho Park

Tae-Woo Lee

Bongjo Sung

Sunghwa Lee

Ikjun Yeom

Yusung Kim

Jaeyung Yeo

Jungmin Lee

Jun Woo Choi

Sungdeuk Park

Jisoon Park

Taewook Ham

Kicheol Sung

JiChul Lim

SangHun Han

Sangwook Kang

Jungmin Yoon

ByungGun Ahn

JaePil Kim

SeHun Kim

JinWoong Namgoong

Youngwook Nam

Jongmin Choi

Seunghwan Kim

Edward Hartley Sargent

Jungsik Park

Sanghyun Lee

Seongmin Kim

Sangwook Kim

Sujin Kim

Hosaeng Kim

Jun Sik Hwang

Jumin Chi

Jaeho Choi

Woosup Lee

Jiyoung Park

Sehwan Choi

Sungil Cho

Sunghye Yoon

Sunghyup Lee

Kyoung-Gu Woo

Seungbum Lee

Bonkwon Koo

Wonjin Choi

Haejin Lee

SungSu A Kim

Heeseok Jung

Hyeongjoon Seo

Inkuk Yun

Wonrae Kim

Kyung-Jong Lee

Sjoerd Hoogland

Seongeun Kim

Youngju Joo

Jae-Ho Lim

Duhyun Kim

Hongil Kwon

Jaeyong Park

Sooin Kim

Seonil Kim

Seungwon Oh

Kyuseok Shim

Kundong Kim

Seungcheol You

Juseok Noh

Myunggeun Song

Hyeokjin Gwon

Sungha Ryu

Younggirl Yun

Sungsu Kim

Jea Woong Jo

Sunhee Son

Hyoungseo Choi

Soonhoon Hwang

Taeil Cho

Young-Min Joo

Hyoungmin Park

Sukhoon Noh

Kyungjik Lee

Incheol Park

Hwadong Song

Joongmin Yoon

Jongkweon Ha

Sungok Park

Jigeon Kim

Fanglin Che

Francisco Pelayo Garcia De Arquer

Juhyun Park

Jooho Jang

Sarah Kim

Sugi Lee

Changyul Kim

The present invention relates to an inorganic perovskite quantum dot-based solar cell capable of providing a significantly excellent photoelectric conversion efficiency compared to the related art by increasing a light absorption capacity even though a photoactive layer has a limited thickness. Specifically, the inorganic perovskite solar cell may include: an electron transport layer that is disposed on a transparent electrode; a photoactive layer having a flat structure that is disposed on the electron transport layer and includes inorganic perovskite quantum dots; an organic hole transport layer that is disposed on the photoactive layer and includes nanopatterns; and a back electrode that is disposed on the organic hole transport layer.

Inorganic perovskite quantum dot-based solar cell including nanostructured back electrode and method of manufacturing the same

An inspection method includes extracting a first similarity by comparing first data of a first optical signal with reference data of a reference optical signal, generating a first normal distribution of the first similarity, extracting a second similarity by comparing second data of a second optical signal with the reference data of the reference optical signal, generating a second normal distribution of the second similarity, and comparing the first normal distribution with the second normal distribution. The extracting of the first similarity includes deriving the first data of the first optical signal.

Inspection method, substrate processing method including the same, and substrate processing device using the substrate processing method

A method of predicting optimal values for a plurality of parameters used in an operation of an image signal processor includes: inputting initial values for the plurality of parameters to a machine learning model having an input layer, corresponding to the plurality of parameters, and an output layer corresponding to a plurality of evaluation items extracted from a result image generated by the image signal processor; obtaining evaluation scores for the plurality of evaluation items using an output of the machine learning model; adjusting weights, applied to the plurality of parameters, based on the evaluation scores; and determining the optimal values using the adjusted weights.

Predicting optimal values for parameters used in an operation of an image signal processor using machine learning

According to certain embodiments, an electronic device comprises: a window forming at least a portion of a front surface of the electronic device; a cover forming at least a portion of a rear surface of the electronic device; a bracket disposed between the window and the cover; a printed circuit board supported by the bracket and disposed between the window and the cover; a shield can disposed on the printed circuit board covering a designated area of the printed circuit board; at least one communication processor disposed on the printed circuit board; and a mmWave antenna module connected to the printed circuit board, and electrically connected with the at least one communication processor via the printed circuit board, wherein the mmWave antenna module is disposed on the shield can and configured to transfer heat to the shield can.

Electronic device including mmWave antenna module

An electronic device is provided, which includes a network interface, a memory, and a processor. The processor is configured to receive a query associated with a user profile from the external device, to determine whether the received query corresponds to at least one item included in the user profile, to transmit a response including the at least one item to an external device when the query corresponds to the at least one item, to generate a new item, which corresponds to the query and which is not included in the user profile when the query does not correspond to the at least one item, and to transmit a response determined based on the new item, to the external device.

Device for generating user profile and system comprising the device

The present disclosure provides a method for facet-selective passivation on each crystal facet of colloidal nanocrystals via solution-phase ligand exchange process, thereby providing highly-passivated and colloidally-stable nanocrystal inks. This ligand exchange strategy separately addresses polar and non-polar facets precluding from deleterious nanocrystal aggregation in the colloid. The method involves the introduction of alkali metal organic complexes during metal halide conventional solution exchanges, and one specific example is Na·Ac. Alkali metal ions stabilize and passivate non polar facets whereas polar facets are passivated through metal halides. This strategy leads to a significant decrease in nanocrystal aggregation during and after ligand exchange, and to improved photophysical properties stemming from this. The resulting nanocrystal solid films exhibit improved stability, retain their absorption features, and have a minimized Stokes shift.

Passivation of nanocrystals tailored to different facets, and its application to optoelectronic devices

The present invention relates to a ligand-exchanged inorganic perovskite quantum dot thin film and a solar cell comprising the same. The inorganic perovskite quantum dot thin film provided in one aspect of the present invention is capable of more effective ligand exchange by directly inserting the organic ligand ion-based salt generating organic ligand ions, and the thin film can be used to prepare solar cells with high power conversion efficiency. Therefore, the thin film of the present invention can contribute to the commercialization of perovskite quantum dot solar cells in the future.

Ligand exchange of perovskite quantum dots and solar cell devices manufactured using the same

An organic light emitting display device includes a substrate having a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel arranged in a quad type of a 2&#xd7;2 matrix form, a first color filter disposed in the first sub-pixel, a second color filter disposed in the second sub-pixel, a third color filter disposed in the third sub-pixel, and a planarization layer covering the first to third color filters, wherein the planarization layer has a concave portion of a lens shape in the fourth sub-pixel, wherein the concave portion has a width greater than that of the fourth sub-pixel. Accordingly, the organic light emitting display device with improved light extraction efficiency of the fourth sub-pixel may be implemented.

Organic light emitting display device

An electronic device is disclosed. An electronic device according to various embodiments includes: a housing including a first surface and a second surface disposed to face the first surface and defining an internal space; a battery disposed adjacent to the second surface of the housing; and an antenna module comprising at least one coil disposed to face the first surface on the battery, wherein the antenna module includes: a base; a first wireless charging coil disposed on a surface of the base; a first NFC coil spaced apart from the first wireless charging coil disposed on a surface of the base and disposed outside the first wireless charging coil; a second wireless charging coil disposed at a position corresponding to the first wireless charging coil on an other surface of the base; a second NFC coil disposed at a position corresponding to the first NFC coil on the other surface of the base and surrounding a partial region of the second wireless charging coil; and a shield sheet disposed under the second wireless charging coil and the second NFC coil, and the antenna module includes a first region in which the second NFC coil and the second wireless charging coil are disposed and a second region corresponding to an other region, and the shield sheet has different thicknesses in the first region and the second region.

Electronic device including flexible printed circuit board laminated wireless charging coil and near field communication antenna pattern

An electronic device includes a frequency analyzing circuit and a color difference calculating circuit. The frequency analyzing circuit receives an image signal including information about a subject, may convert the image signal into first color data which are based on a first color domain, converts the first color data into frequency data which are based on a frequency domain, and applies frequency weights corresponding to the frequency data to the first color data to generate processed color data. The color difference calculating circuit calculates color difference values for evaluating a color stain generated by the image signal, based on the processed color data. The frequency weights are selected based on sensitivity information of an observer according to a frequency change of the frequency data.

Color stain analyzing method and electronic device using the method

Provided are a wavelength converting particle, a method for manufacturing a wavelength converting particle, and a light-emitting diode containing a wavelength converting particle. The wavelength converting particle comprises a hybrid OIP nanocrystal that converts a wavelength of light generated by an excitation light source into a specified wavelength. Accordingly, it is possible to optically stabilize and improve color purity and light-emission performance without changes in a light-emitting wavelength range.

Wavelength converting particle, method for manufacturing wavelength converting particle, and light-emitting diode containing wavelength converting particle

An electronic device may include, for example: a first battery; at least one second battery; a power management module configured to monitor capacity information of the first battery; and a processor electrically connected to the first battery, the at least one second battery, and the power management module. The processor may be configured to: monitor whether a designated event or a low-power state in which a voltage of the first battery drops below a reference value has occurred, while the electronic device is driven using the first battery; determine that the designated event has occurred or that the first battery corresponds to the low-power state; and parallel-connect the first battery and at least one of the at least one second battery, based on determining that the designated event has occurred, or that the first battery corresponds to the low-power state. Various other embodiments are possible.

Power supply method and electronic device therefor

An air conditioning device is provided. The air conditioning device includes an image sensor, and a processor configured to identify an object based on edge information included in an image acquired through the image sensor, and control an operation of the air conditioning device based on the type information of the identified object.

Air conditioning device and control method thereof

Provided are a perovskite light emitting device containing an exciton buffer layer, and a method for manufacturing the same. A light emitting device of the present invention comprises: an exciton buffer layer in which a first electrode, a conductive layer disposed on the first electrode and comprising a conductive material, and a surface buffer layer containing fluorine-based material having lower surface energy than the conductive material are sequentially deposited; a light-emitting layer disposed on the exciton buffer layer and containing a perovskite light-emitter; and a second electrode disposed on the light-emitting layer. Accordingly, a perovskite is formed with a combined FCC and BSS crystal structure in a nanoparticle light-emitter. The present invention can also form a lamellar or layered structure in which an organic plane and an inorganic plane are alternatively deposited; and an exciton can be bound by the inorganic plane, thereby being capable of expressing high color purity.

Perovskite light emitting device containing exciton buffer layer and method for manufacturing same

Growing community of inventors

Seoul, South Korea

Younghoon Kim