Patent application number | Description | Published |
20100051925 | ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - An organic light emitting diode (OLED) display device which can improve emission efficiency and reduce (or minimize) resonance effect, and a method of fabricating the same. The OLED display device includes a substrate; a first electrode disposed on the substrate and including a reflective layer; an organic layer disposed on the first electrode and including a white emission layer and a hole injection layer having a thickness between 200 and 300 Å; and a second electrode disposed on the organic layer. | 03-04-2010 |
20100276680 | ORGANIC LIGHT EMITTING DISPLAY HAVING A GAS VENT GROOVE TO DEREASE EDGE OPEN FAILURES - An Organic Light Emitting Display (OLED) and its fabrication method has a pixel defining layer provided on a first electrode which is formed with a gas vent groove to allow gas to vent when the pixel defining layer is being formed, so that gas is not left in a pixel but vented when a donor film is laminated by a Laser-Induced Thermal Imaging (LITI) method, thereby decreasing edge open failures. | 11-04-2010 |
20110003419 | LASER INDUCED THERMAL IMAGING APPARATUS AND FABRICATING METHOD OF ORGANIC LIGHT EMITTING DIODE USING THE SAME - A laser induced thermal imaging apparatus and a fabricating method of organic light emitting diodes using the same, which laminate an acceptor substrate and a donor film using a magnetic force in vacuum, and are used to form a pixel array on the acceptor substrate. A substrate stage includes a magnet or magnetic substance. The acceptor substrate has a pixel region for forming first, second, and third sub-pixels, and the donor film has an organic light emission layer to be transferred to the pixel region. A laser oscillator irradiates a laser to the donor film. A contact frame is adapted to be disposed between the substrate stage and the laser oscillator, and is used to form a magnetic force with the substrate stage. The contact frame includes an opening through which the laser passes. A contact frame feed mechanism moves the contact frame in a direction of the substrate stage. | 01-06-2011 |
20110062427 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - An organic light emitting display device (OLED) suppressing a resonance effect and having an enhanced luminance, and a method of fabricating the same, are disclosed. One embodiment of the OLED includes: a substrate; a first electrode disposed over the substrate and having a reflective layer; an organic layer disposed over the first electrode and having a white emission layer; a second electrode disposed over the organic layer; and a transmittance controlled layer (TCL) disposed over the second electrode and having an optical path length of about 260 to about 1520 Å. | 03-17-2011 |
20110212400 | LASER INDUCED THERMAL IMAGING APPARATUS AND LASER INDUCED THERMAL IMAGING METHOD - A laser induced thermal imaging apparatus for imaging an imaging layer of a donor film on an acceptor substrate. The laser induced thermal imaging apparatus includes: a substrate stage having an electromagnet, and adapted to receive an acceptor substrate having a pixel area of the organic light emitting device and a donor film including the organic light emitting layer to be imaged on the pixel area; a laser oscillator for irradiating a laser on the donor film; a contact frame adapted to be located between the substrate stage and the laser oscillator and including an opening portion of a pattern corresponding to a part to be imaged of the donor film and a permanent magnet for forming a magnetic force with the substrate stage; and a contact frame moving mechanism for moving the contact frame toward the substrate stage. | 09-01-2011 |
20130285290 | LASER IRRADIATION DEVICE AND METHOD OF FABRICATING ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME - A laser irradiation device and a method of fabricating an organic light emitting display device (OLED) using the same are disclosed. The laser irradiation device includes: a laser source generating a laser beam; a mask disposed below the laser source and patterning the beam and a projection lens disposed below the mask and determining magnification of the laser beam through the mask, wherein the laser beam penetrating the mask has different doses in at least two regions. Thus, the laser irradiation device can maximize emission efficiency and enhance the quality of a transfer layer pattern when an organic layer of the OLED is formed using the laser irradiation device. | 10-31-2013 |
Patent application number | Description | Published |
20090135221 | METHOD AND APPARATUS FOR DETECTING MISSING NOZZLE IN THERMAL INKJET PRINTHEAD - Provided is a method of detecting a missing nozzle in a thermal inkjet printhead. The method includes: applying an input energy high enough to eject ink to a heater corresponding to a target nozzle, and applying an input energy not high enough to eject ink to a hear corresponding to a nozzle adjacent to the target nozzle; when a predetermined time passes, detecting a difference between temperatures which are measured at points spaced by a predetermined distance from each of the two heaters; and determining whether the target nozzle is missing. | 05-28-2009 |
20090142712 | METHOD OF MANUFACTURING IMAGE FORMING ELEMENT, IMAGE FORMING ELEMENT, AND IMAGE FORMING APPARATUS HAVING THE SAME - A method of manufacturing an image forming element which can reduce a manufacturing time and a manufacturing cost with a simplified manufacturing process, an image forming element manufactured by the method, and an image forming apparatus having the same. The method includes preparing a cylindrical image drum having at least one slot formed along a lengthwise direction, arranging a control board having a plurality of terminals inside the image drum such that the plurality of terminals are located in the slot, forming a photosensitive resin layer on an outer circumference of the image drum, processing the photosensitive resin layer to form a plurality of installation recesses along a circumference of the image drum in correspondence to the plurality of terminals and a plurality of connection holes to expose the terminals through an area of each of the installation recesses, and forming a plurality of ring electrodes in the installation recesses to connect to the plurality of terminals through the connection holes. | 06-04-2009 |
20090180681 | IMAGE BEARING STRUCTURE AND METHOD TO DETECT A DEFECT IN THE IMAGE BEARING STRUCTURE - An image bearing structure includes an image drum including at least one slot, a plurality of ring electrodes formed on an outer circumference of the image drum, and a control board positioned within the slot of the image drum, and connected to the plurality of ring electrodes, to detect a defect of the ring electrodes. As a result, the image bearing structure detects a defect within a short time and without requiring a separate detecting device. | 07-16-2009 |
20100321330 | TOUCH PANEL AND ELECTRONIC DEVICE INCLUDING THE SAME - A touch panel which is used as an input device for an electronic device, etc., and an electronic device including the touch panel are provided. A touch panel includes a first substrate, and a second substrate spaced from the first substrate by a distance and having a contact surface. A fluid is filled in a gap between the first substrate and the second substrate, and an input button area is delimited due to movement of the fluid when a driving voltage is applied. If a thickness of the gap between the first substrate and the second substrate is reduced below a threshold thickness value in the input button area, the driving voltage is cut off. | 12-23-2010 |
20100321335 | TOUCH PANEL AND ELECTRONIC DEVICE INCLUDING THE SAME - A touch panel and an electronic device are provided. The touch panel includes a first substrate; a second substrate that is spaced apart from the first substrate by a gap and includes a contact surface; driving electrodes that are formed on each of the first substrate and the second substrate; and electro-rheological fluid that is disposed in the gap. When a driving voltage is applied between the driving electrodes, a button area is delimited due to a variation in viscosity of the electro-rheological fluid at the button area. When a thickness of the gap is reduced to a value equal to or less than a threshold due to a pressing force applied to the contact surface at the button area, the driving voltage is cut off. | 12-23-2010 |
20110163978 | TOUCH PANEL AND ELECTRONIC DEVICE INCLUDING THE SAME - A touch panel and an electronic device including the same are provided. The touch panel includes a first substrate, a second substrate, an electro-rheological fluid, a sensor, and a controller. The second substrate is spaced apart from the first substrate by a gap and includes a touch surface. The electro-rheological fluid is filled in a gap between the first substrate and the second substrate. The sensor senses an input on the touch surface and determines an input location at which the input occurs, and the controller varies a viscosity of the electro-rheological fluid in a location corresponding to a peripheral region of the input location. | 07-07-2011 |
20110181530 | TOUCH PANEL AND ELECTRONIC DEVICE INCLUDING THE SAME - A touch panel and an electronic device having the same are provided. The touch panel includes a first substrate; a second substrate that is spaced apart from the first substrate by a gap, the second substrate including a touch surface; an array of driving electrode pairs that is arranged on the first substrate and the second substrate, and induces an electrical field locally between the first substrate and the second substrate when a driving voltage is applied thereto; and electro-rheological fluid that is filled in the gap between the first substrate and the second substrate, a viscosity of the electro-rheological fluid changing depending on the electrical field induced by the driving electrode pairs. An operating force or a return force is adjusted by controlling an application or release of the driving voltage. | 07-28-2011 |
20110222877 | DIRECT PRINTING METHOD AND IMAGE FORMING DEVICE FOR PERFORMING THE SAME - A direct printing method and an image forming device for performing the direct printing method are provided. The image forming device includes an image forming body and a controller. The image forming body includes a plurality of electrodes, and the controller controls to operate at least some of the plurality of electrodes at different times and print a single line image. | 09-15-2011 |
20110227862 | TOUCH PANEL AND ELECTRONIC DEVICE INCLUDING THE SAME - A touch panel and an electronic device including the same are provided. The touch panel includes a touch panel body including a first substrate and a second substrate that is spaced apart from the first substrate, driving electrodes that are arranged on the first substrate and the second substrate, and electro-rheological fluid that fills a gap between the first substrate and the second substrate; a driver that applies a driving voltage to all or a portion of the driving electrodes; and a sensor that applies a sensing signal sequentially to the driving electrodes and senses a variation in capacitance between the driving electrodes due to a variation of the gap between the first substrate and the second substrate in response to the sensing signal. | 09-22-2011 |
20110279374 | USER INPUT DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME - A user input device and electronic apparatus are provided. The user input device includes a first substrate on which first electrodes are formed; a second substrate disposed to be spaced apart from the first substrate, and on which second electrodes are formed; an electro-rheological fluid contained in a gap between the first substrate and the second substrate; and one or more lighting keypad units disposed on the second substrate. Each of the lighting keypad unit includes one or more key symbols which are different from one another. The electronic apparatus includes one or more user input devices. | 11-17-2011 |
20120038563 | TOUCH PANEL AND ELECTRONIC DEVICE INCLUDING THE SAME - Provided are a touch panel and an electronic device including the same. The touch panel includes a pair of upper and lower substrates spaced apart from each other by a gap, wherein the upper substrate has a user touch surface. Electro-rheological fluid fills the gap between the upper and lower substrates. The touch panel includes a determining unit which senses a contact or pressing operation on the user contact surface to determine an input type, and which sets a predetermined activation force value according to the input type to determine whether an input occurs. The touch panel may further include a controller which applies a driving voltage, when the determining unit determines that an input according to a corresponding input type occurs. | 02-16-2012 |
20120086651 | TOUCH PANEL - A touch panel is provided. The touch panel includes an electroactive polymer (EAP) actuator which is deformable when protruded or depressed locally at a part to which a driving voltage is applied; and a flexible touch sensor which is disposed on the EAP actuator. The flexible touch sensor is deformable locally in correspondence with a deformation of the EAP actuator, and senses an input according to a contact or pressing operation. | 04-12-2012 |
20120127122 | INPUT SENSING CIRCUIT AND TOUCH PANEL INCLUDING THE SAME - An input sensing device for sensing an input on a touch panel, and touch panel are provided. The input sensing device has a capacitance node and includes a charge pump to which an output signal from a first electrode of the capacitance node is input as a charge source in response to a sensing signal applied through a second electrode of the capacitance node. The input sensing device determines whether there is an input on the touch panel, based on an output voltage of the charge pump. | 05-24-2012 |
20120262410 | TOUCH PANEL AND DRIVING DEVICE FOR THE SAME - A driving device and a touch panel are provided. The driving device includes a first switcher and a second switcher. The first switcher is coupled to a first electrode of a capacitance node of the touch panel and is configured to selectively apply, to the first electrode, a driving voltage for generating an electric potential difference in the capacitance node. The second switcher is coupled to the first electrode and configured to selectively apply, to the first electrode, a sensing voltage for sensing a variation in the capacitance of the at least one capacitance node. | 10-18-2012 |
20120299429 | ROTOR AND MOTOR - A rotor and a motor are provided in which the q-axis inductance is increased and the leakage of magnetic flux is prevented to ensure high power operation at high level driving speeds. The rotor includes a rotor core, which is formed at the center thereof with a hole coupled to a shaft, and a module configured to be coupled to the rotor core and comprises a pair of first permanent magnets, which are space apart from each other, and a first connection part connecting ends of the first permanent magnets to each other. | 11-29-2012 |
20130038266 | APPARATUS AND METHOD FOR CONTROLLING ACTUATOR - Provided is an actuator control apparatus including: an observer configured to estimate a state of a load based on a state equation including at least one modeled load parameter; a controller which outputs a signal for controlling the load; a compensation unit which compensates for the signal output from the controller; and an estimator configured to estimate a change of a load parameter, to decide a gain of the compensation unit based on the estimated change of the load parameter, and to update the modeled load parameter. | 02-14-2013 |
20130088112 | MOTOR AND ROTOR OF A MOTOR - A motor includes a first rotor and a second rotor which are disposed at opposite sides of a stator, and each of the first rotor and the second rotor includes a plurality of modules, each including a pair of permanent magnets and a connection unit which connects ends of the permanent magnets. | 04-11-2013 |
20140042796 | IN-WHEEL ACTUATOR AND IN-WHEEL ASSEMBLY COMPRISING THE SAME - An in-wheel assembly includes an in-wheel actuator and a wheel. The in-wheel actuator includes a driving motor, a decelerator which is disposed in the driving motor and configured to decrease a rotational speed received from the driving motor, and an output shaft which is configured to receive the rotational speed decreased by the decelerator. The wheel is configured to accommodate the in-wheel actuator in an inner space and is driven by the rotational speed of the output shaft to rotate. | 02-13-2014 |
20140049094 | IN-WHEEL ACTUATOR AND IN-WHEEL ASSEMBLY COMPRISING THE SAME - An in-wheel assembly includes an in-wheel actuator and a wheel. The in-wheel actuator includes a driving motor; a hollow shaft which is disposed inside of the driving motor and driven by a rotational speed of the driving motor to rotate; a decelerator which is arranged in an inner space of the hollow shaft and configured to reduce a rotational speed of the hollow shaft and output the reduced rotational speed to an output shaft; and a shaft support which is configured to support the hollow shaft to rotate with respect to the driving motor and the decelerator. The wheel accommodates the in-wheel actuator and is driven by a rotational speed decreased by the decelerator to rotate. | 02-20-2014 |
20140054998 | ROTOR AND ELECTRIC MOTOR INCLUDING THE SAME - A rotor and an electric motor including the rotor are provided. The electric motor includes a rotor and a plurality of stators. The rotor includes a plurality of main magnets that are disposed spaced apart from each other along a circumferential direction with respect to a rotation axis of the rotor, and have a magnetizing direction that is a direction of the rotation axis, a plurality of auxiliary magnetic units that are disposed on both sides of each of the main magnets in the direction of the rotation axis, and have a magnetizing direction that is the circumferential direction, so as to concentrate magnetic flux in each of the main magnets, and a plurality of webs that are disposed between the auxiliary magnetic units so as to generate a reluctance torque. | 02-27-2014 |
20140375162 | ROTOR OF ELECTRIC MOTOR AND MOTOR USING THE SAME - Exemplary embodiments disclose a rotor of an electric motor and an electric motor using the same. The rotor includes a core which includes a plurality of protrusion portions which are arranged along an outer circumference of the core and protrude radially to an outer portion of the core, and a plurality of concave portions interposed between the protrusion portions; a plurality of permanent magnets which are respectively disposed at the plurality of concave portions; and a plurality of pole pieces which are disposed at the plurality of concave portions and at outer sides of the plurality of permanent magnets. A length of each of the plurality of pole pieces in an axial direction is shorter than a length of each of the plurality of protrusion portions in the axial direction. | 12-25-2014 |