Patent application number | Description | Published |
20080211340 | Rotor of Synchronous Reluctance Motor - A rotor of a synchronous reluctance motor, comprising: a laminated core formed by laminating a plurality of silicon steel sheets, and having a barrier formed at each of regions equally divided on the basis of the center of each silicon steel sheet and a guide pin hole formed between the barriers; end plates fixed to both side of the laminated core; a guide pin inserted into each of the guide pin holes; and a rivet installed by penetrating a hole of each barrier in order to couple the laminated core and the end plates with each other. | 09-04-2008 |
20080238300 | Organic electroluminescence device and method for fabricating the same - Disclosed herein are an organic electroluminescent (EL) device comprising a hole transport layer (HTL) and a method for fabricating the same. The organic electroluminescent (EL) device comprises a stack in which a light-emitting layer and a hole transport layer are interposed between an anode and a cathode, wherein the hole transport layer is made of a mixture of at least two materials, and wherein the mixture is selected from a mixture of an organic compound and one or more other organic compounds, a mixture of a metal or inorganic compound and one or more other metal or inorganic compounds, and a mixture of one or more organic compounds and one or more metal or inorganic compounds. | 10-02-2008 |
20080296991 | SYNCHRONOUS RELUCTANCE MOTOR - A synchronous reluctance motor is described. The synchronous reluctance motor includes a core configured to rotate about a central axis and having first and second groups of flux barriers formed therein. Each flux barrier is defined as an opening in the core. Each of the first and second groups includes a first flux barrier and a second flux barrier with the second flux barrier disposed outside the first flux barrier in a radial direction from the central axis of the core. Each of the second flux barriers of the first and second groups has at least two connection parts crossing the opening of the second flux barrier. | 12-04-2008 |
20080297085 | MOTOR DRIVER SYSTEM AND METHOD FOR PROTECTING MOTOR DRIVER - A motor driver system includes an inverter configured to apply a three-phase voltage to a motor; an inverter driver configured to generate a reference voltage to the inverter to control a motor speed to follow a reference speed; and a motor protector configured to control the inverter driver so that a value of the reference voltage is equal to or lower than a predetermined voltage value. | 12-04-2008 |
20080297097 | MOTOR DRIVER SYSTEM AND METHOD FOR CONTROLLING MOTOR DRIVER - A motor driver system and its control methods are discussed. Even when a command magnetic flux decreases as a motor operates in a field weakening region, a current angle can be maintained always below a limit value, thereby obtaining the stability of the motor control. | 12-04-2008 |
20090115317 | ORGANIC ELECTROLUMINESCENCE DEVICE AND METHOD FOR FABRICATING THE SAME - An organic electroluminescent (EL) device is provided that may include a first electrode, an organic layer and a second electrode arranged in a light-emitting region of a substrate. The device may also include a cap for sealing the light-emitting region of the substrate. The cap may have a caved surface with a minimum depth of 10 μm and a maximum depth of 10% of a total thickness of the cap. | 05-07-2009 |
20090184597 | FAN MOTOR, BLDC MOTOR, AND ROTOR FOR THE BLDC MOTOR - A BLDC motor is provided. The BLDC motor includes a stator having a plurality of teeth formed at an inside thereof, a plurality of coils, each of the plurality of coils being wound around a corresponding tooth of the stator, a rotor located at the inside of the stator, a plurality of magnets located at an edge portion of the rotor, a plurality of magnet placement portions located on the rotor, each magnet placement portion having a first and second barrier formed at opposite ends of the magnet placement portion, the first barrier and second barrier of adjacent magnet placement portions being separated by a gap portion, each of the plurality of magnets being inserted into a corresponding magnet placement portion, and at least one of the gap portions includes a third barrier located therein. A rotor and fan motor including a plurality of barriers formed on the rotor are also provided. | 07-23-2009 |
20090184673 | MOTOR DRIVING SYSTEM AND METHOD OF PROTECTING MOTOR DRIVER - A motor driver system includes an excess current sensing device configured to compensate a sensing value depending on a temperature of a motor, and to output the compensated sensing value, the sensing value being obtained from a current value associated with the motor; and a controller configured to stop the motor when the compensated sensing value exceeds a preset excess value. | 07-23-2009 |
20100155714 | ORGANIC ELECTROLUMINESCENT DEVICE - Disclosed is an organic electroluminescent device including a substrate, a first and a second electrode, and an emitting layer formed between the first electrode and the second electrode. The emitting layer includes a plurality of materials which is a blue emitting material using a following chemical formula as dopant. | 06-24-2010 |
20100194228 | MOTOR AND COMPRESSOR TECHNOLOGY - An interior permanent magnet type brushless direct current (BLDG) motor includes a stator having a plurality of slots and a stator coil wound on the slots. The interior permanent magnet type brushless direct current (BLDC) motor also includes a rotor that rotates with respect to the stator and that has a rotor core and a plurality of permanent magnets positioned in the rotor core. The rotor has a notch that is cut off between adjacent permanent magnets. | 08-05-2010 |
20110037520 | MULTISTAGE AMPLIFYING CIRCUIT - A multistage amplifying circuit includes a first amplifying circuit that either samples a first analog voltage input or amplifies a difference between the first analog voltage and a first digital voltage converted from the first analog voltage, in response to a control signal. A second amplifying circuit either samples a second analog voltage input or amplifies a difference between the second analog voltage and a second digital voltage converted from the second analog voltage, in response to the control signal. A common amplifier receives output voltages of the first amplifying circuit and the second amplifying circuit and either resets the output voltage of the first amplifying circuit and determines an output voltage by using the second amplifying circuit, or resets the output voltage of the second amplifying circuit and determines an output voltage by using the first amplifying circuit, in response to the control signal. | 02-17-2011 |
20130107170 | LIQUID CRYSTAL DISPLAY DEVICE | 05-02-2013 |
20130135558 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display (LCD) device includes a first substrate; a second substrate; a liquid crystal layer disposed between the first and second substrates; a color filter on one of the first and second substrates; a first polarization plate under the first substrate; a second polarization plate over the second substrate; a backlight unit under the first polarization plate; and a quantum rod sheet disposed between the color filter and the second polarization plate. | 05-30-2013 |
20130222335 | MULTI-CHANNEL SAMPLE-AND-HOLD CIRCUIT AND ANALOG-TO-DIGITAL CONVERTER USING THE SAME - A sample-and-hold circuit connected to an analog-to-digital converter (ADC) is provided. The sample-and-hold circuit includes an operational amplifier configured to output a result signal to the ADC; a feedback capacitor connected between an input terminal and an output terminal of the operational amplifier to form a feedback path; a plurality of sampling capacitor blocks each connected to one of a plurality of channels. The plurality of sampling capacitor blocks configured to sample and hold an analog signal input to each of the channels; a plurality of controllers each connected between one of the sampling capacitor blocks and the operational amplifier. The plurality of controllers configured to switch the sampled signal so that held signals for the respective channels are sequentially input to the operational amplifier; and a reset unit connected between a reference voltage source and the input terminal of the operational amplifier to reset the operational amplifier when the operational amplifier does not perform a holding operation. | 08-29-2013 |
20140139749 | DISPLAY APPARATUS AND METHOD OF CONTROLLING THE SAME - A display apparatus and a method of controlling the same are disclosed. The method of controlling a display apparatus includes: displaying an interface for setting up a remote controller that controls an external device connected to at least one input terminal of the display apparatus; receiving a selection of a user for setting up the remote controller through the user interface; and transmitting remote controller code information corresponding to the external device to the remote controller in accordance with the selection. | 05-22-2014 |
20140160398 | ORGANIC LIGHT EMITTING DIODE DEVICE AND LIQUID CRYSTAL TYPE EMITTING MATERIAL FOR THE SAME - The present invention provides an organic light emitting diode (OLED) device including a first electrode; a second electrode facing the first electrode; an emitting material layer disposed between the first and second electrodes and including a liquid crystal type emitting material being horizontally oriented. | 06-12-2014 |