Patent application number | Description | Published |
20120069059 | Organic Light Emitting Diode Display Device and Low Power Driving Method Thereof - An organic light emitting diode (OLED) display and a low power driving method of the OLED display are provided. The OLED display comprises a display panel that comprises data lines, scan lines intersecting the data lines, and light emitting cells arranged in a matrix form, wherein the light emitting cells respectively comprise OLEDs, a DC-DC converter that is enabled in a normal mode to supply a first high potential power voltage to the display panel and is disabled in a low power mode, and a panel driver that drives the data lines and the scan lines of the display panel, disables the DC-DC converter in the low power mode, and supplies a second high potential power voltage to the display panel. | 03-22-2012 |
20120161637 | Organic Light Emitting Diode Display - An organic light emitting diode (OLED) display includes a display panel including data lines, scan lines crossing the data lines, and light emitting cells, which are arranged in a matrix form and each include an OLED, and a panel driving circuit, which reduces a reference voltage applied to an anode of the OLED to a ground level voltage in a sleep-out mode and adjusts the reference voltage at a voltage level greater than the ground level voltage. The reference voltage is held at a voltage level greater than the ground level voltage in a normal driving mode. | 06-28-2012 |
Patent application number | Description | Published |
20130130135 | FUEL CELL SYSTEM AND HUMIDIFICATION DEVICE OF THE SAME - A fuel cell system is disclosed. More specifically, the fuel cell system may include a stack that includes an electrical generation assembly of a fuel cell, an air supply unit that supplies air to a cathode of the fuel cell, a humidifier that humidifies exhaust air that is exhausted from the cathode and supply air that is supplied from the air supply unit, a hydrogen supply unit that supplies the anode of the fuel cell with hydrogen, and a water trap that traps condensate that is generated by the anode and exhausts it. In particular, the supply air is supplied to an upstream side of the humidifier and the condensate that is trapped in the water trap is supplied to an upstream side of the humidifier. | 05-23-2013 |
20140186725 | FUEL CELL SYSTEM AND METHOD OF PURGING THE SAME - A fuel cell system and a method of purging the same are provided. The fuel cell system includes: a fuel cell stack that includes a fuel electrode and an air electrode as well as an air supply unit that supplies air of a blower to the air electrode via a humidifier through an air supply line. A water trap collects condensed water that is generated at the fuel electrode, and a drain valve that is installed within a drain line between the water trap and the humidifier is also provided. A purge valve is installed at a purge line that is branched from the drain line between the fuel cell stack and the water trap. in particular, by opening the drain valve and the purge valve during operation, condensed water and unreacted hydrogen are each exhausted to the humidifier, and when operation is terminated, by opening the drain valve, condensed water and unreacted hydrogen are exhausted to the humidifier, and by opening the purge valve in a different flow direction, unreacted hydrogen is purged to the air electrode inlet side. | 07-03-2014 |
20150311544 | DEVICE FOR REMOVING RESIDUAL HYDROGEN IN FUEL CELL - Disclosed is a device for removing residual hydrogen in a fuel cell. The device for removing residual hydrogen in a fuel cell sucks residual hydrogen gas in a fuel cell system and easily removes the sucked hydrogen gas so as to prevent a fire, an explosion, and the like which may occur due to residual hydrogen in the fuel cell system during maintenance work of a fuel cell vehicle. In particular, the device may be manufactured as a simple ejector structure in which a nozzle, a venturi, and a diffuser are sequentially combined, the nozzle and the venturi are combined, and the like to use compressed air as a driving flow and use gas inside a fuel cell system as a suction flow and thus easily remove the residual hydrogen. | 10-29-2015 |
Patent application number | Description | Published |
20150200240 | DISPLAY PANEL - A display panel includes a base substrate including a pixel area and a peripheral area, a semiconductor layer disposed on a portion of the base substrate, a display element disposed in the pixel area, and a thin film transistor which controls the display element and includes an input electrode, an output electrode and a control electrode, in which the semiconductor layer includes a first portion disposed on the input electrode of the first thin film transistor, a second portion disposed on the output electrode of the first thin film transistor, and a third portion which connects the first portion and the second portion, overlaps the control electrode of the first thin film transistor, and defines a channel of the first thin film transistor. | 07-16-2015 |
20160048248 | TOUCH PANEL AND DISPLAY APPARATUS INCLUDING THE SAME - A touch panel including a substrate, first touch electrodes, each of the first touch electrodes including first mesh patterns disposed on the substrate, an insulation layer disposed on the first touch electrodes, second touch electrodes, each of the second touch electrodes including second mesh patterns disposed on the insulation layer, first auxiliary mesh electrodes disposed on the substrate, the first auxiliary mesh electrodes being electrically connected to at least a portion of the corresponding second mesh patterns, and second auxiliary mesh electrodes disposed on the insulation layer, the second auxiliary mesh electrodes being electrically connected to at least a portion of the corresponding first mesh patterns. | 02-18-2016 |