Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.

Abstract: An image encoding/decoding method is provided. An image decoding method of the present invention may comprise deriving an intra-prediction mode of a current luma block, deriving an intra-prediction mode of a current chroma block based on the intra-prediction mode of the current luma block, generating a prediction block of the current chroma block based on the intra-prediction mode of the current chroma block, and the deriving of an intra-prediction mode of a current chroma block may comprise determining whether or not CCLM (Cross-Component Linear Mode) can be performed for the current chroma block.

Abstract: Proposed are counter-based selective row hammer refresh apparatus and method for row hammer prevention and, more particularly, proposed are an apparatus and a method for reducing energy consumption of dynamic random access memory (DRAM) by improving counter-based algorithms for solving a row hammer problem when applying a refresh management (RFM) command that is a new command applied to the latest DRAM standards, such as DDR5, LPDDR5, and the like.

Abstract: The present invention relates to a battery system for a vehicle, which comprises: a battery pack installed in a trunk room of the vehicle and provided with a plurality of battery cells and an electrolyte; a cooling device circulating cooling water to cool an engine installed in the vehicle; and a safety device that injects the cooling water of the cooling device into the battery pack to cool the battery pack through impregnation of the cooling water to the plurality of battery cells when a temperature of the battery pack increases to a preset temperature or more.

Abstract: The present invention relates to a battery system for a vehicle, which comprises: a battery pack installed in a trunk room of the vehicle and provided with a plurality of battery cells and an electrolyte; a cooling device circulating cooling water to cool an engine installed in the vehicle; and a safety device that injects the cooling water of the cooling device into the battery pack to cool the battery pack through impregnation of the cooling water to the plurality of battery cells when a temperature of the battery pack increases to a preset temperature or more.

Abstract: A display apparatus and a method of controlling the display apparatus are provided. The display apparatus includes: an image processor configured to process an image of a predetermined content; a display configured to display the processed image of the content; a communicator configured to communicate with a remote controller configured to receive a user command and display information related to the content; and a controller configured to control the display to display the image of the content in accordance with the received user command, store information related to a use history that the user has used the content, and transmit information to the remote controller related to the stored use history of the user so that the information related to the content can be displayed on the remote controller based on the use history of the user.

Abstract: A display apparatus and a method for controlling a display apparatus are provided. A display apparatus includes a display configured to display an image, a rotator configured to rotate the display, and a controller configured to control the rotator to rotate the display when a predetermined event occurs, and control the display to generate a plurality of screens on the rotated display, display a first image on one of the plurality of screens, and display at least one different image on another screen among the plurality of screens.

Abstract: A display apparatus and a control method thereof are provided. The display apparatus includes a display configured to display a plurality of images received from a plurality of sources on each of a first screen, a second screen, and a third screen of a display screen, a user interface configured to detect a user interaction, and a controller configured to control the display to move locations of the first to third screens in accordance with a detected rotation interaction in response to the rotation interaction being detected through the user interface.