Samsung Electronics Co., Ltd.

Rohm and Haas Electronic Materials Korea Ltd.

Dupont Specialty Materials Korea Ltd.

Lg Display Co., Ltd.

Dupont Electronics, Inc.

Soo-Yong Lee

Joo-Yeol Lee

Chi-Sik Kim

Byung-Moo Lee

Dong He

Seung-Hoon Yoo

Dong-Hyung Lee

Tae-Jin Lee

Jong-Hyun Lee

Do-Han Kim

Jeong-Dae Seo

Kyoung-Jin Park

Viacheslav V Diev

Charles D McLaren

Young-Jun Yu

Sang-Beom Kim

Denis Yurievich Kondakov

Yoo-Jin Doh

Mi-Ran Seo

Yunlong Zou

The present disclosure relates to an organic electroluminescent device comprising a first electrode, a second electrode, and at least one organic layer interposed between the first electrode and the second electrode, wherein the organic layer comprises a light-emitting layer and a hole transport zone. By comprising a deuterated compound in at least one of the light-emitting layer and the hole transport zone, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency, and/or lifetime properties.

Organic electroluminescent device

An organic light emitting diode and an organic light emitting device including the same are discussed. The organic light emitting diode can include a first electrode, a second electrode facing the first electrode, and a first emitting part including a green emitting material layer and positioned between the first and second electrodes. The green emitting material layer can include a first host, a second host and a dopant, wherein at least one of the first host and the second host is deuterated.

Organic light emitting diode and organic light emitting device including the same

The present disclosure relates to a plurality of light-emitting materials comprising at least one of first compounds and at least one of second compounds, wherein the first compound is represented by formula 1, and the second compound is represented by formula 2, and an organic electroluminescent device having improved lifetime properties can be provided by comprising the plurality of light-emitting materials.

Plurality of light-emitting materials and organic electroluminescent device comprising the same

The present disclosure relates to a plurality of light-emitting materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound or a specific combination of compounds according to the present disclosure as a host material and/or a dopant material, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency and/or lifetime properties compared to conventional organic electroluminescent devices.

Plurality of light-emitting materials, organic electroluminescent compound, and organic electroluminescent device comprising the same

Disclosed are a communication scheme and a system thereof for converging an IoT technology and a 5G communication system for supporting a high data transmission rate beyond that of a 4G system. A method and an apparatus for configuring a connection with a second device, which provides access to a network, by a first device in a communication system, is provided. The method includes discovering the second device supporting a neighbor awareness network (NAN) and located within a predetermined range from the first device, exchanging an ephemeral key of the first device for identifying the first device and an ephemeral key of the second device for identifying the second device, and performing a secure connection between the first device and the second device.

Method and apparatus for configuring connection between devices in communication system

The present disclosure provides a method for performing initial setup with a connection acceptance device by a connection request device, the method comprising the operations of: performing an association procedure with a configurator; transmitting a first probe request message to the configurator; receiving a first probe response message including information required for a connection to the connection acceptance device from the configurator; driving a timer and transmitting a second probe request message to the connection acceptance device; receiving a second probe response message from the connection acceptance device; and starting a secure connection to the connection acceptance device when the second probe request message is received before the timer has expired, and information included in the second probe response message coincides with the information required for the connection, which is included in the first probe response message.

Technique for supporting initial setup between connection request device and connection acceptance device

A method for communicating between devices is presented. The method includes dividing a first public key of a first device into at least two partial keys, transmitting the at least two partial keys through at least two communication channels having different physical characteristics, receiving a second public key of a second device through at least one of the at least two communication channels, authenticating the second device based on the received second public key, and performing secure communication with the second device using a public key generated based on the received second public key.

Method and apparatus for proximal authentication of wireless electronic device

A test system and a failure parsing method. The test system may comprise a cell array including defective cells formed according to various failure causes, a test apparatus configured to measure electric characteristics from the defective cells and make the measured electric characteristics numerical, and a database apparatus configured to store the numerical electric characteristics. The failure parsing method may include forming defective cells to have at least one failure cause, measuring electric characteristics of each of the defective cells, storing the measured electric characteristics of each of the defective cells in a database, and judging failure causes of a failed chip of a semiconductor wafer based on the database.

Test system and failure parsing method thereof

Growing community of inventors

Gyeonggi-do, South Korea

Soo-Yong Lee