Abstract: A white light-emitting electroluminescent device having an emissive layer that includes a green light-emitting compound and a red light-emitting compound dispersed in a blue light-emitting host.

Abstract: An organic electroluminescent device (1) including: an anode (10) and a cathode (30), and an emitting layer (20) including an anode-side region (22), an internal region (24) and cathode-side region (26) provided between the anode (10) and the cathode (30); each of the regions (22), (24) and (26) including a host compound of an organic material and a dopant of a metal complex containing a heavy metal and exhibiting light emitting properties originated from a triplet state; the dopant concentration of the internal region (24) being higher than the dopant concentrations of the anode-side region (22) and the dopant concentration of the cathode-side region (24).

Abstract: A biphenyl derivative having a specific structure and an organic electroluminescent device having a long lifetime due to comprising at least one of organic thin film layers including a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, wherein the organic thin film layer contains the biphenyl derivatives, singly or as a component of a mixture are provided, and also the biphenyl derivatives particularly suitable for a light emitting material of the organic EL device of the present invention is provided.

Abstract: An organic light emitting display device having multiple emission layers is provided, in which an organic charge transport layer is interposed between the emission layers to enhance interfacial properties between layers, and thus a stable process is ensured. Further, a hole transport layer and an electron transport layer are formed of an organic material like the charge transport layer, thereby simplifying the process.

Abstract: The present invention relates to a display device (1A) including a plurality of display elements (10A) formed on a substrate (2A). Each of the display elements (10A) includes an organic segment (4A) containing an organic compound which generates light upon application of an electric field, and a first and a second electrode elements (3A, 5A) for applying the electric field to the organic segment (4A). The first electrode segment (3A), the organic segment (4A) and the second electrode segment (4A) are formed on the substrate (2A). In this case, the second electrode segment (5A) is provided with an opening (52A) for allowing passage of light generated in the organic segment (4A). The first and second electrode segments may be formed adjacent to each other in a plane parallel to the substrate. In this case, the organic segment is formed so as to cover both the first and second electrode elements.

Abstract: A display capable of preventing an emission layer from deterioration resulting from temperature rise of an electrode also when the same is increased in size and easily connectable with an external current source also when the same is connected with the external current source on a single portion is provided. This display comprises a first electrode formed on a substrate, an emission layer formed on the first electrode, a second electrode formed on the emission layer, a peripheral electrode, arranged to enclose the outer periphery of the second electrode and connected with at least three edges of the outer periphery of the second electrode, having a smaller sheet resistance value than the second electrode, and a current source connection terminal connected to the outer periphery of the peripheral electrode. Thus, current readily flows from the second electrode toward the peripheral electrode, while the current can be dispersedly fed along three or four directions.

Abstract: An EL element 1 comprises EL functional layers 6, 10 comprising Ga2O3:Eu between a thick film insulator layer 16 and an upper electrode 12 provided on a substrate 2 on which a lower electrode 4 was formed and a light-emitting layer 8 comprising MgGa2O4 formed therebetween. The EL functional layers 6, 10 have the dual functions of insulating layers and electron doping layers. Due to this, the EL element 1 has a low drive voltage and high light-emitting brightness, and the structure of the EL element is simplified.

Abstract: It is an object of the present invention to provide a light emitting element with a low driving voltage. In a light emitting element, a first electrode; and a first composite layer, a second composite layer, a light emitting layer, an electron transporting layer, an electron injecting layer, and a second electrode, which are stacked over the first electrode, are included. The first composite layer and the second composite layer each include metal oxide and an organic compound. A concentration of metal oxide in the first composite layer is higher than a concentration of metal oxide in the second composite layer, whereby a light emitting element with a low driving voltage can be obtained. Further, the composite layer is not limited to a two-layer structure. A multi-layer structure can be employed. However, a concentration of metal oxide in the composite layer is gradually higher from the light emitting layer to first electrode side.

Abstract: A flat panel display and a method of manufacturing the same are disclosed. In one embodiment, the flat panel display includes a substrate, a plurality of pixels formed on the substrate, and a light resonating layer formed on the subpixels. Each of the pixels includes subpixels that emit red light, green light, and blue light, respectively. The light resonating layer includes two or more layers and varies in thickness depending on the colors of the light emitted from the subpixels.

Abstract: A module for manufacturing a display device, a method for manufacturing the module, and a method for manufacturing a display device using the module, are provided. The module includes a solid substrate, a first flexible substrate, a second flexible substrate, and a third flexible substrate in one embodiment. The solid substrate has an upper surface and a lower surface facing to the upper surface. The first flexible substrate is on the upper surface of the solid substrate, and the second flexible substrate is on the first flexible substrate and has an opening to receive a flexible display substrate that has a display element. The third flexible substrate is on the lower surface of the solid substrate to prevent a bending of the solid substrate. Advantageously, a malfunction of pixels of the display element is decreased, and the module for manufacturing the display device may be recycled to decrease a manufacturing cost of the display device.

Abstract: A light-emitting device is provided, which includes a supporting member, a light-emitting element disposed on the supporting member to emit a light, the light-emitting element having a semiconductor substrate and a polygonal top surface, an electrode pad formed on the top surface of the light-emitting element, a first lead electrode formed on the supporting member, a conductive wire connecting the electrode pad with the first lead electrode, the conductive wire being arranged to pass over one of corners of the polygonal top surface of the light-emitting element and along a ridge formed contiguous to the one of corners and corresponding to a boundary between neighboring side surfaces of the light-emitting element, and a fluorescent layer containing a light-transmitting member and a fluorescent substance.

Abstract: The invention is directed to a screen-printable getter composition comprising: (a) glass frit; and (b) pre-hydrated desiccant material; dispersed in (c) organic medium. The present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO2, 0-80% B2O3, 0-90% Bi2O3, 0-90% PbO, 0-90% P2O5, 0-60% Li2O, 0-30% Al2O3, 0-10% K2O, 0-10% Na2O, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure. The desiccant material is pre-hydrated to reach its saturation level of moisture absorption. The process of pre-hydration can be done by exposing the desiccant in a normal temperature/humidity environment of for example, 25° C. and 50-60% RH. for 24 to 48 hours or up to the time when weight gain (due to moisture absorption) stops increasing.

Abstract: An MgO layer (8) including an MgO crystal causing a cathode-luminescence emission having a peak within a range from 230 nm to 250 nm upon being excited by electron beams is provided in a position facing a discharge cell (C) formed in the discharge space between the front glass substrate (1) and the back glass substrate (4).

Abstract: A method for manufacturing a plasma display panel, which improves the contrast of the plasma display panel, reduces the production costs of the plasma display panel, and simplifies a process for manufacturing the plasma display panel. The method includes forming a barrier rib material on a lower plate, on which address electrodes and a dielectric are provided; forming a black top material having photosensitivity on the barrier rib material; and forming barrier ribs and black tops by treating the barrier rib material and the black top material.

Abstract: A black top green sheet, a plasma display panel, and a method for manufacturing the same, in which black tops made of a photosensitive substance are formed, to improve the contrast of the plasma display panel, reduce the production costs of the plasma display panel, and simplify a process for manufacturing the plasma display panel. The method includes forming a barrier rib material on a lower plate, on which address electrodes and a dielectric are provided; forming a black top material comprising a photosensitive substance on the barrier rib material; patterning the black top material to form black tops; and patterning the barrier rib material using the black tops as a mask to form barrier ribs.

Abstract: The present invention discloses a method for driving a plasma display apparatus, wherein a scan signal, of which at least one of the voltage rising time or the voltage falling time is from 20 ns to 150 ns, is supplied to a scan electrode.

Abstract: A plasma display panel and a method of manufacturing the same are disclosed. The plasma display panel uses a photosensitive barrier rib containing nano-powder.

Abstract: A dielectric sheet having two layers made of different materials for forming a differential dielectric sheet on a plasma display panel, a plasma display panel using the same, and a manufacturing method therefor.

Abstract: There are provided a PDP having a higher luminous efficiency and a process for producing the same. In a plasma display panel filled with a discharge gas between a front plate and a rear plate opposed to each other, the front plate 100 comprises a glass substrate 1, electrodes 2 (transparent electrodes 2a and bus electrodes 2b) on the glass substrate 1, the first dielectric layer 4 covering the electrodes 2 and the glass substrate 1 and containing a fluorine atom, the second dielectric layer 5 covering the first dielectric layer 4 and containing a fluorine atom at a less amount than that in the first dielectric layer 4, and a protective layer 6 covering the second dielectric layer 5.

Abstract: The present invention relates to a plasma display apparatus which may simplify its manufacturing process and optimize its brightness and luminous property. A plasma display apparatus according to an embodiment of the present invention comprisies a front substrate and a rear substrate; a plurality of barrier ribs forming a plurality of discharge cells, the barrier ribs formed between the front substrate and the rear substrate; and a black frame separating an effective screen and a non-effective screen of the front substrate, wherein the black frame covers portions of one and more of the outermost discharge cells in the effective screen. Therefore, the present invention may simplify the manufacturing process of the plasma display apparatus and improve the brightness and luminous property, thus enhancing image quality.

Abstract: In a metal halide vapor lamp, particularly for application in aquaria, having a fill containing GdBr3, HoJ3, DyJ3, CsJ and TlJ, the fill additionally contains InJ, whereby all the said ingredients are mixed with each other in such a ratio that on the CIE chromaticity diagram the color point of the lamp having the coordinates X=0.265 and Y=0.265 deviates in no direction for more than 7 SDMC.

Abstract: A bipolar pulse forming transmission line module for linear induction accelerators having first, second, third, fourth, and fifth planar conductors which form an interleaved stack with dielectric layers between the conductors. Each conductor has a first end, and a second end adjacent an acceleration axis. The first and second planar conductors are connected to each other at the second ends, the fourth and fifth planar conductors are connected to each other at the second ends, and the first and fifth planar conductors are connected to each other at the first ends via a shorting plate adjacent the first ends. The third planar conductor is electrically connectable to a high voltage source, and an internal switch functions to short a high voltage from the first end of the third planar conductor to the first end of the fourth planar conductor to produce a bipolar pulse at the acceleration axis with a zero net time integral.

Abstract: A lampholder and a lamp string device having an automatic bypass device are proposed. A Zener diode is provided in each lampholder. When the light bulb in a lampholder burns out or gets loose, the voltage across the two terminals of the Zener diode rises to the Zener breakdown voltage so that the Zener diode operates in the reverse region to replace the role of the original light bulb, hence keeping the whole circuit intact. Therefore, in the lampholder or the lamp string device having an automatic bypass device, the situation that one light bulb burns out or gets loose to cause the whole circuit to malfunction won't arise. The problem of continuous burnout of light bulb can also be avoided. Moreover, mass production can be accomplished to decrease the labor expenditure so as to effectively lower the overall cost.

Abstract: An apparatus is utilized for producing colloidal dispersions of nanoparticles of electrically conducting materials. The colloidal dispersions are produced in a dense media plasma reactor comprising at least one static electrode and at least one rotating electrode. The plasma reaction sputters off minute particles of the electrically conducting material from which the electrodes are made. Methods of using the colloidal dispersions thus made are also described. Colloidal dispersions of silver produced in this manner are highly effective for bactericidal purposes.

Abstract: A display apparatus includes a field emission device including a first electrode serving as a display plate on which phosphor material is coated, and a second and a third electrode for emitting electrons to be ejected onto the first electrode, wherein the phosphor material emits light when the electrons are ejected thereonto; a voltage application unit for applying driving voltages to the second and the third electrode to control an emitted amount of the electrons in accordance with display data and allow a specific part of the phosphor material to emit light; and a brightness control unit for controlling an emission brightness of the phosphor material. The brightness control unit includes a first electrode current detection unit, a display data amount estimation unit, a comparing unit, a preset value generation unit, an average turn-on rate detection unit, an average turn-on rate analysis unit, and a selection unit.

Abstract: The embodiment disclosed herein relates to a lighting system that includes an auxiliary lighting circuit for use with an electronic HID ballast. The lighting system comprises a power supply configured to provide power to a high intensity discharge (HID) lamp via an electronic ballast and a ballast power sensing component configured to determine the amount of power drawn by the electronic ballast and to convert this power drawn by the electronic ballast to a scaled voltage that is representative of the power drawn by an HID ballast. A lamp driver component is configured to provide power to an auxiliary lamp via the same power supply when the scaled voltage reaches a triggering threshold. A voltage regulation component is configured to regulate the power delivered to the auxiliary lamp such that the auxiliary lamp power stays within a predefined range.

Abstract: A feedback circuit for push-pull inverters aims to improve the existing push-pull inverters that provide input electricity to a discharge lamp at a phase difference of 180 degrees without feedback electricity to regulate frequency signals and cannot effectively control uniform luminance of the discharge lamp. The invention includes a feedback device to get a detection electricity of the driving electricity of the discharge lamp through non-contact coupling induction. The detection electricity is transformed by the feedback device and output to a frequency control unit. The control unit can regulate and output the frequency signal in response to the luminance of the discharge lamp to timely adjust input electricity of a push-pull inverter.

Abstract: When a forward direction voltage of any of several LEDs 14 to 20 is lowered, a drain voltage of an NMOS transistor 70 employed in any of series regulators 24 to 30 becomes higher than a defined voltage. A zener diode ZD1, which is connected to the LED where the abnormal condition occurs, becomes conductive. A voltage, which is increased from the defined voltage, is applied to a negative input terminal of a comparing amplifier 72, and an output voltage of the comparing amplifier 72 is lowered by this increased voltage portion so that a gate voltage of the NMOS transistor 70 is lowered. A current flowing through the NMOS transistor 70 is decreased. Even if an abnormal condition caused by a voltage drop occurs in any of the LEDs 14 to 20, then the LEDs 14 to 20 can be protected.

Abstract: A LED based lighting system (20) employs a LED load temperature sensor (40) for generating a temperature-sensing signal (TSS) indicative of an operational temperature of the LED load (10), a LED current sensor (50) for generating a current-sensing signal (CSS) indicative of a flow of the LED current (ILED) through the LED load (10), and a LED driver (30) for regulating the flow of the LED current (ILED) through the LED load (10) as a function a mixture of the current-sensing signal (CSS) and the temperature-sensing signal (TSS). The system (20) can further employ a driver disable notifier (80) and a LED driver disabler (90), or alternatively, a fuse network (100) for disabling the LED driver (30) upon a detection of a fault condition of the system (20).

Abstract: An LED current control device (100) includes an array of one or more LEDs (10) electrically connected to a current-sensing element (20). A sense signal produced by the current-sensing element may be amplified by a single-ended amplifier (30) and sent to a switching controller (40 and 50). The switching controller may perform hysteretic control on the amplified sense signal by controlling a switching element (60) to turn on and off. The on and off states of the switching element respectively enables and disables an external power supply (VEXT) for the LED array. As such, hysteretic control may be performed on the current flowing through the LEDs.

Abstract: A control system for a first window lifter adjusts a first window pane of a motor vehicle having a first drive, and for a second window lifter for adjusting a second window pane of the motor vehicle having a second drive, having a control device. The control device may be electrically connected both to the first drive and to the second drive for the purpose of energization. The control device may have a first sensor for determining a first adjustment position of the first window lifter, and a second sensor for determining a second adjustment position of the second window lifter, the first sensor and the second sensor being based on different physical operational principles.

Abstract: A motor drive unit comprises a DC power source, a plurality of inverter circuits for converting the a power of this DC power source to an AC power, current detectors for detecting an output current of at least one of those plurality of inverter circuits and a controller for performing PWM control of those plurality of inverter circuits. This controller is constructed in a way to synchronize a PWM period of the plurality of inverter circuits, so as to drive a plurality of motors at once by means of those plurality of inverter circuits respectively.

Abstract: A motor controller for controlling an electric motor including a soft starter and a human-machine interface for control and configuration of the soft starter. The soft starter includes a visual display and a selector associated with the visual display. A method to configure a motor controller for controlling an electric motor, including a soft starter and a human-machine interface for control and configuration of the soft starter. A computer program and graphic user interface for carrying out the method.

Abstract: An apparatus for over current detection of a dual motor for use in a vehicle. This invention prevents each motor from burning out by more precisely detecting an over current of each motor in the dual motor within an overall drive area of the dual motor. This can be accomplished by setting, as an over current detection reference current, a predefined range between a normal current and a constraint current of each motor by drive input conditions of each use motor, detecting a current of each motor flowing in field effect transistor (FET) via a shunt resistor and a differential amplifier, and comparing the detected currents with the over current detection reference currents.

Abstract: In a linear motor and its progressive motion or motion control, e.g., for modular transport devices with straight and curved route sections forming a route course, extensive modularity or flexibility of the linear motor may be guaranteed with little expenditure in terms of equipment and software, e.g., with regard to various applications or machine configurations, e.g., when a plurality of secondary parts are used. A secondary part may have at least one permanent magnet and a signal processing device with a progressive motion or motion controller, which generates at least one set value relevant to the coil control. A set value is fed as a magnitude for commutation using a set value interface of a coil control that is stationary relative to the primary part. Device(s) are also provided for rigidly positioning the secondary part, the device(s) guiding the secondary part along a predetermined stretch.

Abstract: The invention relates to a method and to a circuit arrangement used to regulate synchronous linear motors, especially linear drive mechanisms in film drawing systems. The force (Fclip) between the stationary primary part (20) and the moved secondary part (30) is determined in a sensorless manner from the voltages and currents calculated and measured in a frequency converter (10) in a functional block (11), in such a manner that the integral is calculated from the active power during a time period (t,clip) between two pulses (new_clip) produced by an overriding control and said integral is divided by the active length (lzone) of the primary part (20). Alternatively, the force (Fclip) can also be determined by summation of the voltages in the f-axis in order to reduce the drop in voltage in relation to the resistance (Rstr) of the branch in the primary part (20). Voltages and currents are transformed on the primary part (20) by a co-ordinate system related to the secondary part (30).

Abstract: Disclosed herein is a control method of a sensorless brushless direct current (BLDC) motor, and more particularly, a drive control method of a concentrated winding BLDC motor which prevents shutdown due to failures of detection of zero cross points (ZCPs). A reference voltage inputted to comparators is altered to set new reference points. ZCPs are detected using the new reference points to avoid uneven detection of the ZCPs. Phase commutation is corrected corresponding to the ZCPs detected using the new reference points to reduce current ripple, thereby leading to stable control of the sensorless BLDC motor. To this end, the control method adds or subtracts a preset certain value to/from a reference voltage to produce a new reference voltage, and detects ZCPs with respect to the new reference voltage to control drive of the sensorless concentrated winding BLDC motor.

Abstract: Adjustment system for a motor vehicle, having a mechanically commutated drive motor and a control apparatus, in which the clontrol apparatus has means for measuring a ripple of a drive current through the mechanically commutated drive motor caused by the mechanical commutation, the control apparatus designed to control the drive motor depending on the measured ripple, and slots in a rotor of the mechanically commutated drive motor being skewed.

Abstract: Variable speed drive comprising a main rectifier module (10) including thyristors (K1, K2, K3) to power a main continuous bus (15) from an external power network (5), an inverter module (30) delivering a variable control voltage to an electric motor from the main bus (15), an auxiliary rectifier module (20) connected to the external power network (5), an electronic control unit (50) controlling the thyristors, a powering module (29) supplying the control unit (50) from the auxiliary rectifier module (20) and from the main rectifier module (10). According to the invention, a switching device (40) controlled by the control unit (50) is used to disconnect the powering module (29) and the auxiliary rectifier module (20).

Abstract: The AC motor driving apparatus comprises an inverter for supplying power to an AC motor, current sensors for detecting current that flows in the motor or inverter, a rotation sensor for detecting the rotation of the rotor in the motor, and a control unit for controlling the driving of the inverter. A current detection value detected by the current sensor and a rotor rotational position are used to estimate three-phase motor current values. The estimated motor current values are used to control the inverter. Thereby, an inexpensive, space-saving AC motor driving apparatus as well as an AC motor controller, electric actuator, or vehicle that can perform highly precise torque control from zero speed to high-speed rotation without depending on the PWM pulse pattern are provided.

Abstract: An improved electronic line shaft provides for a predictor sending predicted position and/or velocity values to servant drives that may be later strobed in by high speed low-latency strobe signals to eliminate network jitter and delay. The predictor may be implemented as a phase lock loop, providing filtering of a master encoder signal together with flexible electronic gear ratio adjustments and other desired control refinements.

Abstract: A manual operation device for controlling an instrument mounted on an automotive vehicle includes: an operating portion to be operated manually; an actuator for applying a force to the operating portion; a detection portion for detecting an operation position of the operating portion; a memorizing element for memorizing a force pattern; a receiving element for receiving the force pattern from an external device and for memorizing the force pattern in the memorizing portion; and a control element for reading out the force pattern memorized in the memorizing portion, for outputting the control data to the actuator on the basis of the read out force pattern and the operation position of the operating portion detected by the detection portion, and for outputting the operation signal to the instrument.

Abstract: Telerobotic, telesurgical, and/or surgical robotic devices, systems, and methods employ surgical robotic linkages that may have more degrees of freedom than an associated surgical end effector n space. A processor can calculate a tool motion that includes pivoting of the tool about an aperture site. Linkages movable along a range of configurations for a given end effector position may be driven toward configurations which inhibit collisions. Refined robotic linkages and method for their use are also provided.

Abstract: A voltage-mode VCM controller is provided comprising an Infinite Impulse Response (IIR) filter that modifies a servo control voltage signal to a voltage driver in response to an adaptive compensator that configures the IIR filter in relation to an observed VCM velocity and an actual VCM velocity. An associated method is provided comprising modeling a velocity response of a VCM to a voltage input; inputting the observed velocity and an actual VCM velocity to an adaptive compensator that computes a gain and a VCM response pole frequency in relation to the VCM resistance and inductance; configuring an IIR filter in relation to the computed gain and pole frequency values; and using the IIR filter to modify a voltage command from a servo controller to a power driver.

Abstract: A motor control for a reciprocating load includes overvoltage suppression. The motor control comprises a variable frequency drive (VFD) operatively connected to a power source for operating a motor to drive the reciprocating load. A sensor determines motor torque. A control unit is connected to the VFD and to the sensor and is adapted to control the VFD in a normal mode to operate the motor at a select reference frequency. The control unit predicts occurrence of a negative motor torque condition based on sensed motor torque and in response to a negative motor torque condition controls the VFD in a negative motor torque mode to operate the motor at a higher frequency than the select reference frequency to prevent the motor from entering a negative slip condition.

Abstract: A motor control method and device. The motor control device includes a programmable integrated circuit (IC) receiving a phase signal, the phase of which is consistent with the rotation phase of a coil of the motor. The programmable IC generates a duty-cycle signal in accordance with the period of the phase signal. The duty-cycle signal comprises a rising segment and a falling segment and when the phase signal changes phase, the duty cycle represented by the duty-cycle signal is a first duty cycle, allowing the input power of the motor remain at a minimum. The duty-cycle signal is input to the coil, controlling the coil on and off and, thereby rotating the motor.

Abstract: The portable solar energy system stores electrical energy generated by a solar panel, which is made of an array of photovoltaic cells, in a dc storage battery, and upon demand converts the dc voltage of the battery to an ac output suitable for supplying conventional electrical appliances. The battery is a sealed lead-acid type and may be an Absorbed Glass Mat (AGM) battery. The system includes an energy storage and converting unit, which houses the battery and a dc-to-ac inverter. The inverter converts the stored energy of the battery, supplied at a low dc voltage, into the ac voltage and current required for supplying conventional appliances. A charge controller manages the flow of current from the solar panel to optimize the state of charge of the battery and to maximize the useful life of the battery. Additional circuitry monitors the discharge level of the battery to limit deep discharging.

Abstract: The battery pack is provided with communication lines that connect with attached electrical equipment, a temperature-sensing element that connects with a communication line, a switching device that connects with the temperature-sensing element, and a control section to control the switching device. The control section puts the switching device in the open state when the communication lines are being used and puts the switching device in the closed state when the communication lines are not being used to output temperature-sensing element voltage to the electrical equipment-side via the communication lines.

Abstract: The battery pack is provided with batteries, a charging FET device to control battery charging, a discharging FET device to control battery discharging, and a control section to control the charging FET device and the discharging FET device. If one FET device is in the ON state and the other FET device is in the OFF state, and furthermore, current flow greater than or equal to a prescribed value is detected through the body (=parasitic) diode of the OFF state FET device for greater than or equal to a prescribed time interval, the control section switches the ON state FET device to the OFF state to prevent damage to the OFF state FET device.

Abstract: An electrical apparatus system includes a depilator (first electrical apparatus) that depilates body hair, a cleaning apparatus (second electrical apparatus) that cleans the depilatory and an AC adapter that supplies DC electric power to the depilator or the cleaning apparatus. Electric power can be supplied between both the electrical apparatuses by bringing a back surface terminal provided in the depilator and a connection terminal provided in the cleaning apparatus into contact with each other.