Abstract: A solar cell in a stack structure having no step may include a solar cell, and an electrode formed on one surface of the solar cell, in which the solar cell is/are stacked on a center portion of a substrate with the electrode interposed therebetween, and the electrode is/are in contact with an electrode line coated on an edge portion of the substrate.

Abstract: A solar cell system may include a first power converting device connected to an output of a first solar cell; a second power converting device which an input connected to an output of a second solar cell connected to the first solar cell in parallel and an output connected to a circuit between the output of the first solar cell and the input of the first power converting device; a bypass circuit at the output of the second solar cell and connected to the circuit between the output of the first solar cell and the input of the first power converting device; a first circuit opening/closing device disposed in a circuit between the second solar cell and the first power converting device; a second circuit opening/closing device in the bypass circuit; and a path control device controlling opening or closing of the first and second circuit opening/closing devices, and a control method thereof.

Abstract: A display device including a display panel having an active area to display an image, and an inactive area provided with a pattern disposed thereto to apply an electrical signal to the active area, a side cover having a peripheral frame disposed at an outer portion of the display panel to form a side portion exterior of the display device, and a support frame extended from the peripheral frame to be disposed at a rear of the display panel and supporting the display panel, and a black matrix disposed at a front of the inactive area to hide a pattern of the inactive area.

Abstract: A flexible thermoelectric element and a method for manufacturing the same is provided. The thermoelectric element is disposed between a high temperature portion and a low temperature portion and includes a plurality of p-type materials and n-type materials formed at a predetermined interval and is folded at sections of the p-type materials and sections of the n-type materials to form folding components. An insulating filler is coated between the p-type materials and the n-type materials that are folded. A module is formed by folding the flexible thermoelectric element, and separate cutting and alignment of the thermoelectric element are omitted at portions that contact with the high and low temperature portions.

Abstract: A solar-power-generation-type sliding window assembly for maintaining an electrical connection between a solar cellmounted to a sliding window and a battery charged by the power generated by the solar cell during normal operation regardless of the position of the sliding window is provided. The solar-power-generation-type sliding window assembly includes a sliding window that has a solar cell and configured to be opened or closed via sliding thereof. A window frame is fixed to an opening in a wall and supports the sliding window. A plurality of rollers are rotatably disposed in the sliding window and supports the movement of the sliding window inside the window frame. Additionally, a connection terminal is disposed on a selected roller among the rollers and electrically interconnects an output terminal of the solar cell disposed on the sliding window and a frame terminal disposed on the window frame.

Abstract: A method for preparing a perovskite solar cell by a non-deposition method is provided. Particularly, the method includes preparing a first substrate by forming a hole transport layer on a light absorbing layer in a semi-dried state and pressurizing and drying a second substrate including an opposing electrode to the first substrate.

Abstract: A display device including a display panel having an active area to display an image, and an inactive area provided with a pattern disposed thereto to apply an electrical signal to the active area, a side cover having a peripheral frame disposed at an outer portion of the display panel to form a side portion exterior of the display device, and a support frame extended from the peripheral frame to be disposed at a rear of the display panel and supporting the display panel, and a black matrix disposed at a front of the inactive area to hide a pattern of the inactive area.

Abstract: An integrated flexible thermoelectric device includes p-type carbon nanoparticle regions and n-type carbon nanoparticle regions which are alternately and continuously connected to each other. In particular, the p-type carbon nanoparticle regions and the n-type carbon nanoparticle regions are formed on the one carbon nanoparticle paper.

Abstract: Modules with various functions may be mounted on a robot cleaner, such that the robot cleaner can perform various additional functions other than cleaning while moving. The robot cleaner cleans a floor surface while moving on the floor surface. At the robot cleaner, a module mounting unit on which at least one module capable of performing a function other than cleaning is able to be mounted is disposed.

Abstract: A display device including a display panel having an active area to display an image, and an inactive area provided with a pattern disposed thereto to apply an electrical signal to the active area, a side cover having a peripheral frame disposed at an outer portion of the display panel to form a side portion exterior of the display device, and a support frame extended from the peripheral frame to be disposed at a rear of the display panel and supporting the display panel, and a black matrix disposed at a front of the inactive area to hide a pattern of the inactive area.

Abstract: Various aspects of the present invention are directed to providing a perovskite solar cell, and has a technical feature in that excellent stability and high efficiency are simultaneously secured by using a solid solution having a specific composition as a light absorber.

Abstract: A discharging unit and air conditioning equipment having the discharging unit are provided. The air conditioning equipment includes a main body including a housing that houses a heat exchanger and a blowing fan and an inlet and an outlet formed in an outer surface of the housing, wherein interior air flows into the inlet and the air exchanged with heat is discharged through the outlet. The air conditioning equipment also includes a discharging part including an end detachably combined with the outlet. The discharging part includes a plurality of discharging units configured to adjust a discharging velocity and discharging direction of the discharged air and to be connected to one another so as to be made into a module.

Abstract: The present disclosure provides a vacuum ring for removing bubbles of a laminated assembly and a method for bonding the laminated assembly using the same. The vacuum ring includes an indented portion receiving a laminated assembly to be sealed, and an inner space of the indented portion is in communication with a vacuum source to remove the bubbles. The vacuum ring also includes projection members that are projected inside on the bottom of the indented portion at positions where the projection members are spaced upward from a lower end of the indented portion to receive the laminated assembly, and the projections members are spaced downward from the upper end of the indented portion. Further, the laminated assembly is produced by using the vacuum ring to achieve effective exhaustion by using an aperture formed between side ends of the projection members and the bonding cover.

Abstract: A solar cell system may include a first power converting device connected to an output of a first solar cell; a second power converting device which an input connected to an output of a second solar cell connected to the first solar cell in parallel and an output connected to a circuit between the output of the first solar cell and the input of the first power converting device; a bypass circuit at the output of the second solar cell and connected to the circuit between the output of the first solar cell and the input of the first power converting device; a first circuit opening/closing device disposed in a circuit between the second solar cell and the first power converting device; a second circuit opening/closing device in the bypass circuit; and a path control device controlling opening or closing of the first and second circuit opening/closing devices, and a control method thereof.

Abstract: Disclosed herein is a cooking apparatus including a heating unit configured to heat an ingredient contained in a cooking chamber, a gas sensor configured to detect a gas inside the cooking chamber, a communication unit configured to communicate with an external apparatus, and a control unit configured to determine a cooking progress state of the ingredient based on the type and concentration of the gas detected by the gas sensor and to transmit information on the cooking progress state to the external apparatus through the communication unit to inform a user of the cooking progress state.

Abstract: A method for preparing a perovskite solar cell by a non-deposition method is provided. Particularly, the method includes preparing a first substrate by forming a hole transport layer on a light absorbing layer in a semi-dried state and pressurizing and drying a second substrate including an opposing electrode to the first substrate.

Abstract: A system for using a solar cell includes a solar cell module configured to convert sunlight into electric energy, an engine operating circuit configured to convert mechanical energy generated by an engine operation of a vehicle into electric energy and provide the electric energy, a solar cell circuit configured to provide the electric energy generated through the solar cell module, a battery configured to be charged by electric energy provided by the solar cell circuit or the engine operating circuit, a load, and a controller of a vehicle. The controller is configured to control a connection of the circuits to the battery or to the load depending on a measured state of charge of the battery, driving of the vehicle, and acceleration of the vehicle. A method for using a solar cell is also disclosed.

Abstract: Disclosed are a robot cleaner, a refrigerator, a container transfer system, and a method of transferring and retrieving a container using the robot cleaner. The method of transferring a container include returning a robot cleaner to a position guide device installed at a refrigerator, mounting the robot cleaner on the position guide device, transferring, by the refrigerator, a container built in the refrigerator to mount the container on the robot cleaner, and moving the robot cleaner on which the container is mounted to a target position.

Abstract: A wiring structure for a solar cell roof may include a moving glass slidably provided on a mechanism rail mounted on each of side frames that are disposed on both sides of a ceiling opening of a vehicle, and a fixed glass fixedly provided, a connection wire connected at a first end thereof to a solar cell included in the moving glass and connected at a second end thereof to a solar cell included in the fixed glass to allow electric current to flow therethrough, and a guide device provided on the side frame adjacent to the mechanism rail to be disposed in a longitudinal direction of the vehicle, and having a space to accommodate the connection wire therein, in which, when the moving glass is opened, the guide device accommodating the connection wire is restrained in movement in a transverse direction of the vehicle but is rotated only upwards.

Abstract: A solar cell system integrated with window glass and a blind is provided. The solar cell system includes high-power solar cell system that has two types of solar cells that are configured to absorb light with different wavelength bands from each other and are coupled to a window glass and a blind, respectively. The solar cell system includes a first solar cell that is coupled to a window glass and a second solar cell that is coupled to a blind and configured to absorb light different in wavelength band from light absorbed by the first solar cell. The band gap energy of the first solar cell is greater than the band gap energy of the second solar cell to maximize generation of electrical energy. Additionally, the second solar cell is coupled to the blind installed to open and close to increase power without degrading transmittance of the window glass.