Abstract: Example embodiments are directed to an electronic device and a method for manufacturing the same. The electronic device includes a polymer thin film and an electrode. The polymer thin film includes nanoparticles. The electrode is formed by attaching a graphene thin film of a sheet shape formed through graphene deposition using a vapor carbon supply source to the polymer thin film. In the method, a graphene thin film of a sheet shape is formed through graphene deposition using a vapor carbon supply source. A polymer solution with distributed nanoparticles is prepared. The polymer solution with distributed nanoparticles is spin-coated on a substrate. A polymer thin film comprising the nanoparticles is formed by drying the spin-coated polymer solution. An electrode is formed by attaching the graphene thin film onto the polymer thin film.

Abstract: The present invention relates to a solar cell having nanostructures on both surfaces of a transparent substrate, and to a method for manufacturing same. The nano-structures, which face each other with respect to the substrate and which transport electrons, are formed using zinc-oxide nanowires. Also, a hole-transport layer using CIS nanoparticles is formed in order to absorb light having a short wavelength and to transport generated holes. A hole-transport layer including CIGS nanoparticles for absorbing light having a relatively long wavelength is formed on the side facing the hole-transport layer including the CIS nanoparticles.

Abstract: The disclosure is related to processing an input event of an external device in user equipment. Coupling event data may be received from the external device coupled to the user equipment. An input event type associated with the received coupling event data may be identified. Input event data may be obtained from the received coupling event data. The obtained input event data may be processed using at least one of an input application programming interface (API) and an input sub-device driver, according to the identified input event type.

Abstract: Provided are a photodetector (PD) using a graphene thin film and nanoparticles and a method of fabricating the same. The PD includes a graphene thin film having a sheet shape formed by means of a graphene deposition process using a vapor-phase carbon (C) source and a nanoparticle layer formed on the graphene thin film and patterned to define an electrode region of the graphene thin film, the nanoparticle layer being formed of nanoparticles without a matrix material. The PD has a planar structure using the graphene thin film as a channel and an electrode and using nanoparticles as a photovoltaic material (capable of forming electron-hole pairs due to photoelectron-motive force caused by ultraviolet (UV) light). Since the PD has a very simple structure, the PD may be fabricated at low cost with high productivity. Also, the PD includes the graphene thin film to reduce power consumption.

Abstract: Provided is a method for controlling user equipment as a touch pad for an external device connected to the user equipment. An operation mode may be changed to a pointing device operation mode when the user equipment is coupled to the external device. In the pointing device operation mode, a touch input may be received through a touch screen panel of the user equipment. A pointer may be displayed on a display unit of the external device corresponding to a coordinate value of the touch input made on the touch screen panel. An operation associated with the received touch input may be performed in the user equipment.

Abstract: A rotatable shelf apparatus and a refrigerator having the same. The refrigerator having the rotatable shelf apparatus includes a main body in which a storage space is formed, a rotatable shelf provided in the storage space to be rotated in a vertical direction, and a rotation supporting unit fixedly provided in the storage space to rotatably support the rotatable shelf. Therefore, it is possible to control the height of the storage space, to reduce the number of times of attaching and detaching the shelf in accordance with the size of accommodated food items, and to effectively utilize the storage space.

Abstract: Provided are user equipment connectable to an external device and a method for establishing a connection between user equipment including second constituent elements and an external device including first constituent elements and controlling the external device. The method may include sensing the connection to the external device, obtaining first constituent element information from the external device through the connection, wherein the first constituent element information includes information on first constituent elements of the external device, selecting target constituent elements to control from the first constituent elements of the external device based on the obtained first constituent element information, reconfiguring a control path for controlling the selected target constituent elements of the external device, and controlling the selected target constituent elements of the external device through the reconfigured control path.

Abstract: Provided is a method for controlling and driving constituent elements of an external device connected to user equipment. The method may include obtaining external device information from the external device when coupled to the user equipment, obtaining application information based on the obtained external device information, and running an application tailored for the external device based on the obtained application information.

Abstract: Provided is controlling a display setting according to an external device connected to user equipment. Such controlling may include displaying image data on a first display unit of the user equipment based on a first display setting, sensing a connection between the user equipment and the external device, obtaining display unit information from the external device, determining the second display setting based on the obtained display unit information, reconfiguring the image data according to the determined second display setting, and displaying the reconfigured image data on a second display unit of the external device based on a presence of the sensed connection.

Abstract: Provided are a photodetector (PD) using a graphene thin film and nanoparticles and a method of fabricating the same. The PD includes a graphene thin film having a sheet shape formed by means of a graphene deposition process using a vapor-phase carbon (C) source and a nanoparticle layer formed on the graphene thin film and patterned to define an electrode region of the graphene thin film, the nanoparticle layer being formed of nanoparticles without a matrix material. The PD has a planar structure using the graphene thin film as a channel and an electrode and using nanoparticles as a photovoltaic material (capable of forming electron-hole pairs due to photoelectron-motive force caused by ultraviolet (UV) light). Since the PD has a very simple structure, the PD may be fabricated at low cost with high productivity. Also, the PD includes the graphene thin film to reduce power consumption.

Abstract: A solar cell using a p-i-n nanowire that may generate light by absorbing solar light in a wide wavelength region efficiently without generating light loss and may be manufactured with a simplified process and low cost.

Abstract: A direct digital frequency synthesizer and a synthesizing method thereof. The direct digital frequency synthesizer uses a hybrid digital to analog converter, which matches output data of a phase accumulator to a sine wave amplitude using a hybrid DAC, including a non-linear DAC and a linear DAC. The non-linear DAC outputs a direct base point current using some bits of output data of a phase accumulator, causing the linear DAC to output a gradient current based on gradient information generated using other bits of the output data of the phase accumulator. These currents are summed for the analog output.

Abstract: A wall mount-type evaporative humidifier according to an embodiment of the present invention includes a main body mounted on a wall and having an air intake port and an air blower port formed therein, a ventilator disposed within the main body and configured to suck air into the air intake port and blow the air toward the air blower port, a water guide disposed within the main body and having a water channel formed therein, a water tank configured to contain water in order to supply the water to the water guide and seated in the water guide, and a humidification filter configured to absorb water of the water guide and to supply moisture to air flowing toward the ventilator and seated in the water guide. The present invention is advantageous in that it can realize a humidifying effect and a cooling effect at the same time, has the high utilization of space, and can control the humidity of the entire room rapidly and uniformly.

Abstract: A refrigerator is provided. The refrigerator includes a refrigerator compartment, a refrigerator compartment door opening and closing the refrigerator compartment, and an ice compartment in which an ice maker is disposed. The ice compartment is defined as an insulation space within the refrigerator compartment door. The refrigerator also includes an ice compartment door opening and closing the ice compartment, and a receiving member disposed on the ice compartment door. The receiving member protrudes toward an inside of the refrigerator compartment to provide a receiving space.

Abstract: The present invention relates to a digital to analog converter, to a return-to-zero digital to analog converter with improved wideband characteristics by enabling a return-to-zero output without separate clock and controller, and a converting method thereof. Since the return-to-zero digital to analog converter and the converting method thereof are capable of outputting an RZ output without directly providing a clock signal to an analog circuit by configuring a switch for generating a zero point signal and a differential pipeline for providing a differential signal to control the switch according to input digital data using a differential structure, the converter can provide wideband characteristics and high dynamic performance.

Abstract: Provided are an electronic device and methods of fabricating the same, the electronic device include a device-substrate, a stacked structure, and an electrode. The stacked structure includes a graphene thin film between a first insulator and a second insulator. The electrode is disposed over the stacked structure.

Abstract: The present invention relates to a direct digital frequency synthesizer using a variable sine wave-weighted digital to analog converter with improved size and efficiency and a synthesizing method thereof. The direct digital frequency synthesizer and the synthesizing method thereof are capable of simplifying a configuration for matching output data of a phase accumulator to sine wave amplitude without increase in complexity of a DAC by applying a nonlinear DAC for directly generating a current corresponding to base points with sine weights and a variable sine wave-weighted DAC for generating fine currents to be combined with variable weights based on the base points. Accordingly, it is possible to provide a high quality output, reduce a size and power consumption, and increase a speed.

Abstract: Example embodiments are directed to an electronic device and a method for manufacturing the same. The electronic device includes a polymer thin film and an electrode. The polymer thin film includes nanoparticles. The electrode is formed by attaching a graphene thin film of a sheet shape formed through graphene deposition using a vapor carbon supply source to the polymer thin film. In the method, a graphene thin film of a sheet shape is formed through graphene deposition using a vapor carbon supply source. A polymer solution with distributed nanoparticles is prepared. The polymer solution with distributed nanoparticles is spin-coated on a substrate. A polymer thin film comprising the nanoparticles is formed by drying the spin-coated polymer solution. An electrode is formed by attaching the graphene thin film onto the polymer thin film.

Abstract: The present invention relates to d a direct digital frequency synthesizer using a hybrid digital to analog converter, which is capable of synthesizing an analog signal with high quality without base decoding, thereby providing improved size and efficiency, and a synthesizing method thereof. The direct digital frequency synthesizer using a hybrid digital to analog converter, and a synthesizing method thereof are capable of simplifying a configuration of a PAM which matches output data of a phase accumulator to sine wave amplitude with an application of a hybrid DAC including a non-linear DAC and a linear DAC, without increase of complexity of a DAC, by causing the non-linear DAC to output a direct base point current using some bits of output data of a phase accumulator, causing the linear DAC to output a gradient current based on gradient information generated using other bits of the output data of the phase accumulator, and summing these currents for analog output.

Abstract: The present invention relates to a digital to analog converter, to a return-to-zero digital to analog converter with improved wideband characteristics by enabling a return-to-zero output without separate clock and controller, and a converting method thereof. Since the return-to-zero digital to analog converter and the converting method thereof are capable of outputting an RZ output without directly providing a clock signal to an analog circuit by configuring a switch for generating a zero point signal and a differential pipeline for providing a differential signal to control the switch according to input digital data using a differential structure, the converter can provide wideband characteristics and high dynamic performance.