Abstract: The present disclosure relates to a light emitting diode (LED) driving device that may expand a usable range of LED current and battery voltage by reducing heat generation of an integrated circuit, and an LED lighting device including the same, which may include a current controller that constantly controls an LED current flowing through an LED string and an IC heat dissipation part connected to a node between the LED string and the current controller to dissipate IC heat of the current controller, wherein when a battery voltage supplied to the LED string increases, the IC heat dissipation part reduces a first LED current flowing from the LED string to the current controller and simultaneously increases a second LED current flowing from the LED string to the current controller via the IC heat dissipation part, thereby reducing the IC heat generation of the current controller.

Abstract: A method of manufacturing a multilayer electronic component, the method includes, attaching a margin portion green sheet including a ceramic material, a photocuring agent, and a photoinitiator to at least one end surface of each of the plurality of cut ceramic green sheet stacked bodies in the third direction, an energy irradiation operation of irradiating, with energy, the margin portion green sheet to generate a photocuring polymerization reaction between the photocuring agent and the photoinitiator.

Abstract: Provided is a cognitive experiment method for change in periphery region image quality for parameter determination of a foveated hologram. According to an embodiment, a cognitive experiment method for determining foveated image parameters includes: generating a foveated image which includes a foveal region and a periphery region while reducing image quality regarding the periphery region; displaying the generated foveated image; receiving an input of a response to image quality of the periphery region from a subject; and collecting information regarding appropriate image quality of the periphery region, based on the response inputted by the subject. Accordingly, in applying a foveated hologram generation algorithm for real-time reproduction, various parameters such as a boundary between a foveal region image and a periphery region image in a foveated hologram, and a degree of quality degradation of the periphery region image may be appropriately determined through a cognitive experiment.

Abstract: Provided is a holographic optical element printing method using a tunable focus lens and a rotating mirror. According to an embodiment, a holographic printer includes: a first optical engine and a second optical engine configured to adjust a phase of an incident collimated beam and emit the collimated beam; and a first reduction optical system and a second reduction optical system configured to reduce the beam emitted from the first optical engine and the second optical engine and to allow the beam to enter a holographic material, wherein each of the first optical engine and the second optical engine includes: a rotating mirror configured to reflect while adjusting the phase of the incident collimated beam through rotation; and a tunable focus lens configured to refract while adjusting the phase of the incident collimated beam reflected from the rotating mirror through focus tuning.

Abstract: Provided is a hologram image normalization method for a holographic printer. In a holographic printing method according to an embodiment, generating, encoding, and normalizing for the (n+1)-th hogel are performed in parallel with loading and recording of a normalized hologram for the n-th hogel, and moving and waiting for the (n+1)-th hogel. Accordingly, a global maximum value and a global minimum value for normalization may be calculated as approximate estimation values, and a hologram generation process and a printing process may be performed in parallel, so that a total printing time may be minimized and memory usage may be optimized when holographic printing is performed.

Abstract: Disclosed are a thermoplastic elastomeric composition for vehicle mounts which has improved surface energy and compression set while solving reduction in wear strength, by blending EPDM rubber, polypropylene, silicon, and poly(styrene-ethylene-butadiene-styrene) (SEBS) in appropriate amounts, and a molded article including the same.

Abstract: The present invention relates to a coating composition which is for a wiper blade and is for forming a coating layer for lowering the coefficient of friction of a wiper blade rubber base on glass, the coating composition including a lubricant additive and a solvent, wherein the lubricant additive is functionalized graphene capable of self-adhesion to the wiper blade rubber base.

Abstract: A display apparatus, a driving method of a display apparatus, and a computer readable recording are provided. The method includes displaying an image on an entire screen area of a display unit, and in response to a user or a user device approaching (e.g., being detected by) the display unit, controlling the display unit to reduce the image and display the reduced image in a first area of the screen area and to control a second area of the screen area other than the first area to operate as a mirror.

Abstract: An electronic device and a controlling method thereof are provided. The method of controlling an electronic device includes acquiring user information, determining a plurality of categories regarding a music content to be included in a playlist based on the acquired user information, and providing a playlist including a plurality of music contents based on the determined plurality of categories.

Abstract: A display apparatus, a driving method of a display apparatus, and a computer readable recording are provided. The method includes displaying an image on an entire screen area of a display unit, and in response to a user or a user device approaching (e.g., being detected by) the display unit, controlling the display unit to reduce the image and display the reduced image in a first area of the screen area and to control a second area of the screen area other than the first area to operate as a mirror.

Abstract: An electronic device and a controlling method thereof are provided. The method of controlling an electronic device includes acquiring user information, determining a plurality of categories regarding a music content to be included in a playlist based on the acquired user information, and providing a playlist including a plurality of music contents based on the determined plurality of categories.

Abstract: An electronic device and a method of controlling the same, in which the electronic device includes a display configured to display a polyhedral user interaction (UI), a sensor configured to sense a user interaction with respect to the polyhedral UI, an audio outputter configured to reproduce music content, and while an image of a first music content is being displayed on a first face of a plurality of faces of the polyhedral UI, a controller is configured to control the audio outputter to reproduce a second music content which is in the same category as the first music content in response to the user interaction sensed by the sensor being a first interaction, and control the audio outputter to reproduce a third music content which is in a different category from the first music content, in response to the user interaction sensed by the sensor being a second interaction.

Abstract: An electronic device and a controlling method thereof are provided. The electronic device may include a microphone configured to receive sound and generate an audio signal based on the sound; a communicator configured to perform communication with an external device; and a controller configured to control the communicator to transmit the audio signal to external device and receive information regarding music content corresponding to the audio signal from the external device.

Abstract: A method of controlling content by using line interaction includes displaying a play bar region, representing a reproduction state of the content, on a touch screen, displaying an object, representing a function associated with reproduction of the content, near a reproduction time of the reproduction bar region, receiving a user input with respect to the play bar region through the touch screen, determining control information about the content, based on the received user input, and controlling the content according to the determined control information.