Abstract: A display device includes: a base layer; a pixel circuit layer disposed on the base layer, wherein the pixel circuit layer includes a pixel circuit; a light emitting element layer disposed on the pixel circuit layer, wherein the light emitting element layer includes a light emitting element electrically connected to the pixel circuit; and a reflective structure layer disposed on the light emitting element layer, wherein the reflective structure layer includes: a first intermediate layer disposed on the light emitting element; a first reflective layer disposed on the first intermediate layer; a second intermediate layer disposed on the first reflective layer; and a second reflective layer disposed on the first reflective layer while being spaced apart from the first reflective layer, wherein the first reflective layer includes a first curved surface, and wherein the second reflective layer includes a second curved surface which faces the first curved surface.

Abstract: A display device includes a display part including a plurality of pixels; a lens part disposed on the display part; and a plurality of optical devices overlapping an edge of the display part in a plan view and disposed at an edge of the lens part, wherein light from the outside of the display part is incident on the plurality of optical devices.

Abstract: An auxiliary display device, which is connected to first and second display devices, includes: a display panel; upper and lower holders respectively connected to upper and lower portions of the display panel; an upper fixing portion connected to the upper holder to fix an upper end of the auxiliary display device to upper ends of the first and second display devices; and a lower fixing portion connected to the lower holder to fix a lower end of the auxiliary display device to lower ends of the first and second display devices, where when the first and second display devices are connected to each other by the upper fixing portion and the lower fixing portion, the display panel covers adjacent bezel areas of the first and second display devices.

Abstract: A display device includes a substrate, a bank disposed on the substrate and having a multi-layered structure having an opening, a light emitting element disposed in the opening and including a pixel electrode, a light emitting layer, and a common electrode, a thin film encapsulating layer disposed on the light emitting element and the bank, a micro lens disposed on the thin film encapsulating layer and overlapping the light emitting element, and a light control layer disposed on the thin film encapsulating layer and surrounding the micro lens. A refractive index of the micro lens is greater than a refractive index of the light control layer. The pixel electrode is disposed in the opening and extends along an inner surface of the bank, and the light emitting layer extends along the inner surface of the bank on the pixel electrode.

Abstract: A head-mounted display is provided, and the head-mounted display includes a pair of frames mounted on the user's body and corresponding to the left and right eyes, a display unit including a pair of display panels respectively mounted to the pair of frames and a pair of multi-channel lenses disposed on a light output path of the pair of display panels and a driving member connected to the pair of frames to allow the frame to tilt and/or move up, down, left, and right, wherein the driving member aligns a center of each of the pair of multi-channel lenses up, down, left, and right with the center of the corresponding eyeball, adjusts an angle of the multi-channel lens, and adjusts a distance between the multi-channel lens and an eye.

Abstract: An apparatus for detecting an arc fault.

Abstract: A receptacle includes an insulated outer case, first and second trip switches formed on an inner bottom of the insulated case, a reset switch formed on the inner bottom of the insulated outer case, a cover disposed on a top of the outer case, first and second test buttons disposed in the insulated outer case to be movable in a vertical direction, each of the first and second test buttons having a bottom adjacent to the corresponding trip switch and a top exposed through the cover, a first spring for biasing the first and second test buttons to an initial position, a reset button disposed in the insulated outer case to be movable in a vertical direction, the reset button having a bottom adjacent to the reset switch and a top exposed through the cover, and a locking portion for selectively locking the reset button in response to the vertical motion of the first and second test button.

Abstract: An apparatus for detecting an arc fault.

Abstract: The present invention relates to a receptacle for preventing an accident due to errors due to wiring defects in wiring in advance by detecting the errors due to the wiring defects when initially wiring to the receptacle. The receptacle includes a main body, a cover for covering the main body, an input terminal and an output terminal received between the main body and the cover, a solenoid provided with a plunger magnetized by a circuit signal when an abnormal electric current such as electric arc, an electric leakage, or the like is generated at the input terminal or the output terminal, and an intermittent section, operatively associated with the solenoid, for preventing the abnormal electric current from flowing to a load.

Abstract: An apparatus for detecting an arc fault.

Abstract: A receptacle includes an insulated outer case, first and second trip switches formed on an inner bottom of the insulated case, a reset switch formed on the inner bottom of the insulated outer case, a cover disposed on a top of the outer case, first and second test buttons disposed in the insulated outer case to be movable in a vertical direction, each of the first and second test buttons having a bottom adjacent to the corresponding trip switch and a top exposed through the cover, a first spring for biasing the first and second test buttons to an initial position, a reset button disposed in the insulated outer case to be movable in a vertical direction, the reset button having a bottom adjacent to the reset switch and a top exposed through the cover, and a locking portion for selectively locking the reset button in response to the vertical motion of the first and second test button.

Abstract: An apparatus for detecting an arc fault.

Abstract: An overload circuit interrupter (OLCI), and a circuit breaker with the same, which diminish erroneous operation from being caused by a dimmer. The OLCI detects overload in an AC electrical wiring system and produces an overload trip signal that shuts the AC source off. The OLCI includes a current transformer that produces the overload voltage in accordance with current variations in phase and neutral conductors. The OLCI also includes a rectifier for rectifying of the overload voltage, a level controller for limiting the rectified overload voltage, an integrator for charging the limited overload voltage and for providing overload indicative signal, and a comparator. The comparator compares the overload indicative signal with a reference overload voltage and produces the overload trip signal that shuts the AC source off. The circuit breaker may further include an arc fault circuit interrupter (AFCI) and a ground fault circuit interrupter (GFCI).

Abstract: A device for detecting arc fault which distinguishes harmful arc from the signal generated by operation of a dimmer and start of electronic devices. Signals outputted from a current transformer is attenuated by a resistor which is coupled in parallel to the current transformer. By the attenuation of the resistor, the signal generated by the operation of a dimmer is not determined to be arc in arc determining part. Harmful arc and the signal generated by the start of the electronic device are distinguished by integrating both signals. As the harmful arc lasts for a long time, large signals are integrated in an integrator while the signal generated by the start of electronic device does not last for a long time.

Abstract: A circuit breaker which displays electronically state of the circuit breaker and the cause of the disconnection which enables users to determine whether to reconnect a conductor which connects a source and a load in power distribution system. An arc display part is coupled to an arc fault detector, a ground display part is coupled to a ground fault detector and an overload display part is coupled to an overload detector. If arc fault occurs, the arc fault detector generates a trip signal and the trip signal is provided to the arc display part. As the trip signal from the arc fault detector is not provided to the ground display part and the overload display part, users can determine that arc fault has occurred by the lighting of the arc display part.

Abstract: A circuit breaker for shutting off an AC electrical source from a phase wire and a neutral wire has the ability to detect an arc fault, ground fault and overload. The circuit breaker includes an arc fault circuit interrupter (AFCI), a ground fault circuit interrupter (GFCI), an overload circuit interrupter (OLCI), and trip circuitry. The AFCI, the GFCI and the OLCI are crossed between the phase wire and the neutral wire of the AC power line and detect the arc fault, ground fault and overload respectively. The trip circuitry is used for shutting off the AC source from the circuit breaker when at least one of the arc fault, ground fault and overload occurs. The circuit breaker is shut when the level of at least one of an arc fault trip signal, ground fault trip signal and overload trip signal is larger than a specified reference trip level.

Abstract: A device for detecting arc fault which distinguishes harmful arc from the signal generated by operation of a dimmer and start of electronic devices. Signals outputted from a current transformer is attenuated by a resistor which is coupled in parallel to the current transformer. By the attenuation of the resistor, the signal generated by the operation of a dimmer is not determined to be arc in arc determining part. Harmful arc and the signal generated by the start of the electronic device are distinguished by integrating both signals. As the harmful arc lasts for a long time, large signals are integrated in an integrator while the signal generated by the start of electronic device does not last for a long time.

Abstract: A circuit breaker which displays eletronically state of the circuit breaker and the cause of the disconnection which enables users to determine whether to reconnect a conductor which connects a source and a load in power distribution system. An arc display part is coupled to an arc fault detector, a ground display part is coupled to a ground fault detector and an overload display part is coupled to an overload detector. If arc fault occurs, the arc fault detector generates a trip signal and the trip signal is provided to the arc display part. As the trip signal from the arc fault detector is not provided to the ground display part and the overload display part, users can determine that arc fault has occurred by the lighting of the arc display part.

Abstract: The present invention relates to overload circuit interrupter capable of detecting overload and interrupting the overload circuit interrupter, and to a circuit breaker with the same. The overload circuit interrupter (OLCI) in an electrical wiring system includes a current transformer for producing an overload voltage in accordance with the current variation of the phase and neutral conductor, a rectifier for rectifying of the overload voltage, a level controller for limiting the rectified overload voltage, an integrator for charging the limited overload voltage and for providing overload indicative signal, and a comparator for comparing the overload indicative signal with a reference overload voltage and for producing an overload trip signal shutting the AC source off. It can diminish error triggering caused by a dimmer. The circuit breaker may further include an arc fault circuit interrupter (AFCI) and a ground fault circuit interrupter (GFCI).

Abstract: A circuit breaker for interrupting an electric circuit in detection of an overcurrent exceeding a rated value, said circuit breaker comprising: detection means for detecting the flow of an overcurrent exceeding a predetermined rated value in said electric circuit from the bending of a bimetal, and creating a detection signal; control means for sending an tripping signal in response to the detection signal from said detection means; and trip means being electro-magnetically operated in response to the tripping signal from said control means to interrupt said electric circuit. According to the circuit breaker, fabrication of the bimetal and the armature is easy and productivity in fabrication of the circuit breaker is increased. Also, a precise and rapid tripping can be carried out when overcurrents takes place. Furthermore, the time required for the time-lag tripping is reduced due to the rapid tripping and thus the degradation of the covering material can be reduced.