Abstract: The present disclosure relates to a method for preparing a polyalkylene carbonate resin, and more particularly, to a method for preparing a polyalkylene carbonate resin having the reduced cyclic carbonate content, which is a by-product, and an increased ratio of a repeating unit including carbon dioxide, by increasing catalyst activity.

Abstract: A method for replicating a holographic optical element and a holographic optical element replicated thereby are provided. The holographic optical element is larger than a master. The master has a holographic grating pattern generated on the master by interference of the reflected, diffracted or transmitted beam generated by irradiating the master having a specific diffraction grating pattern formed thereon with a laser beam.

Abstract: An image processing device including: a gain value manager for generating white gain values corresponding to a plurality of positions, based on a sensing result of a predetermined white image; a target pixel manager for detecting saturated pixels, based on pixel values received from an external device, and determining target pixels as saturated white pixels of which each have a pixel value that indicates that the saturated white pixel is saturated, based on peripheral pixels of the saturated white pixels among the detected saturated pixels; and a target pixel corrector for changing pixel values of the target pixels, based on the white gain values and pixel values of the peripheral pixels.

Abstract: The present disclosure provides a waveguide display apparatus. The waveguide waveguide display apparatus of the present disclosure is a waveguide display apparatus for correcting curved surface reflection distortion, the waveguide display apparatus including a waveguide for guiding light inputted from the outside; a first diffractive optical element disposed at the waveguide, and diffracting the light inputted from the outside to the inside of the waveguide; and a second diffractive optical element disposed at the waveguide, and diffracting the light guided by the waveguide to output a plurality of diffracted lights in a direction of a curved surface reflector located outside, wherein the second diffractive optical element has a structure of a diffraction grating corresponding to a curvature of the curved surface reflector such that the diffracted lights are reflected at different locations of the curved surface reflector in directions parallel to each other.

Abstract: A display device includes: a substrate; a transistor that is disposed on the substrate; an auxiliary electrode that is connected with the transistor; a first electrode that is disposed on a same layer as the auxiliary electrode; a light emitting diode layer that is disposed on the first electrode; and a second electrode that is disposed on the light emitting diode layer, wherein the second electrode contacts the auxiliary electrode at a side surface thereof.

Abstract: A display device includes: a substrate; a transistor that is disposed on the substrate; an auxiliary electrode that is connected with the transistor; a first electrode that is disposed on a same layer as the auxiliary electrode; a light emitting diode layer that is disposed on the first electrode; and a second electrode that is disposed on the light emitting diode layer, wherein the second electrode contacts the auxiliary electrode at a side surface thereof.

Abstract: A display device includes a first substrate on which a thin film transistor is disposed, a planarization layer disposed on the first substrate, where the planarization layer includes a plurality of protrusions, a first electrode disposed on the planarization layer, a pixel defining layer disposed on the first electrode, where the pixel defining layer includes a plurality of insulating patterns corresponding to the protrusions, a light emitting layer disposed on the first electrode and the pixel defining layer, and a second electrode disposed on the light emitting layer.

Abstract: An interactive server, a display apparatus, and a control method thereof are disclosed. An interactive server includes a communication unit configured to perform communication with a display apparatus and receive a voice command signal including a first command element representing a target and a second command element representing an execution command; a storage unit configured to store indicators and command words; an extraction unit configured to extract an indicator corresponding to the first command element and a command word corresponding to the second command element from the storage unit; and a controller configured to generate response information corresponding to the voice command signal by combining the extracted indicator and command word, and send the response information to the display apparatus, wherein the first command element is an command element that is determined based on a displaying status of objects displayed on a screen of the display apparatus.

Abstract: A display apparatus and a method for controlling the display apparatus are provided. More specifically, the display apparatus outputs a visual test screen and an auditory test voice signal, determines a degree and a classification of impairment of a user, and sets a User Interface (UI) or sets a voice signal output based on the determined degree and classification of impairment.

Abstract: A claw clipper with an LED for a companion animal, includes: a pair of handles connected to each other by an elastic member; a pair of clipper blades each attached to a first side of an end portion of each of the handles, respectively; and an LED module provided in a first surface of the end portion of one of the pair of handles and emitting light in a direction toward the clipper blades.

Abstract: A light emitting device including a first electrode, a light emitting portion on the first electrode, the light emitting portion including a plurality of light emitting units and at least one interconnecting layer between ones of the light emitting units that are adjacent to each other, and a second electrode on the light emitting portion. The at least one interconnecting layer includes a p-type charge generation layer doped with a p-type dopant and an n-type charge generation layer doped with an n-type dopant. At least one of the p-type charge generation layer and the n-type charge generation layer has a concentration gradient of the p-type dopant or the n-type dopant.

Abstract: A display apparatus and a method for controlling the display apparatus are provided. More specifically, the display apparatus outputs a visual test screen and an auditory test voice signal, determines a degree and a classification of impairment of a user, and sets a User Interface (UI) or sets a voice signal output based on the determined degree and classification of impairment.

Abstract: A light emitting device including a first electrode, a light emitting portion on the first electrode, the light emitting portion including a plurality of light emitting units and at least one interconnecting layer between ones of the light emitting units that are adjacent to each other, and a second electrode on the light emitting portion. The at least one interconnecting layer includes a p-type charge generation layer doped with a p-type dopant and an n-type charge generation layer doped with an n-type dopant. At least one of the p-type charge generation layer and the n-type charge generation layer has a concentration gradient of the p-type dopant or the n-type dopant.

Abstract: A device for removing a noise on an image using a cross-kernel type median filter includes a target pixel determination unit configured to determine whether a target pixel is a noise or not; a peripheral pixel determination unit configured to determine degrees of the noise on a peripheral pixel information of a peripheral pixel of the target pixel; and a noise removing unit configured to remove the noise of the target pixel and corrects the image by applying a cross-kernel type median filter based on the peripheral pixel information.

Abstract: Provided is an organic light-emitting device including a first electrode, a second electrode disposed opposite to the first electrode, an emission layer disposed between the first electrode and the second electrode, and an electron-transporting layer disposed between the emission layer and the second electrode. The electron-transporting layer includes a first electron-transporting material and a second electron-transporting material. The lowest unoccupied molecular orbital (LUMO) energy level of the first electron-transporting material (EL1) and the lowest unoccupied molecular orbital (LUMO) energy level of the second electron-transporting material (EL2) satisfy the equation 0.1 eV?|EL1?EL2|?0.3 eV.

Abstract: An electronic device is provided. The electronic device includes a display; a memory for storing at least one audio signal; a communication circuit configured to establish wireless communication with an external device; and a processor electrically connected with the display, the memory, and the communication circuit, wherein the memory stores instructions for, when executed, causing the processor to: produce the at least one audio signal, receive data associated with a gesture through the communication circuit from the external device apply a sound effect, selected based at least in part on the data associated with the gesture, to the produced at least one audio source, and output or store a resulting audio signal, wherein the resulting audio signal represents application of the sound effect to the produced at least one audio signal.

Abstract: A semiconductor chip includes: a gate pattern on a substrate; an interlayer insulation layer on the gate pattern; a first wiring structure on the interlayer insulation layer; and a defect detection circuit electrically connected to the gate pattern and the first wiring structure. The first wiring structure is electrically connected to the gate pattern via a contact plug through the interlayer insulation layer. The defect detection circuit is electrically connected to the gate pattern and the first wiring structure, and the defect detection circuit is configured to detect defects in the first wiring structure and at least one of the gate pattern and the substrate.

Abstract: A semiconductor chip includes: a gate pattern on a substrate; an interlayer insulation layer on the gate pattern; a first wiring structure on the interlayer insulation layer; and a defect detection circuit electrically connected to the gate pattern and the first wiring structure. The first wiring structure is electrically connected to the gate pattern via a contact plug through the interlayer insulation layer. The defect detection circuit is electrically connected to the gate pattern and the first wiring structure, and the defect detection circuit is configured to detect defects in the first wiring structure and at least one of the gate pattern and the substrate.

Abstract: An electronic device is provided. The electronic device includes a display; a memory for storing at least one audio signal; a communication circuit configured to establish wireless communication with an external device; and a processor electrically connected with the display, the memory, and the communication circuit, wherein the memory stores instructions for, when executed, causing the processor to: produce the at least one audio signal, receive data associated with a gesture through the communication circuit from the external device apply a sound effect, selected based at least in part on the data associated with the gesture, to the produced at least one audio source, and output or store a resulting audio signal, wherein the resulting audio signal represents application of the sound effect to the produced at least one audio signal.