Patent application number | Description | Published |
20080230770 | ORGANIC LIGHT-EMITTING DISPLAY PANEL AND METHOD OF MANUFACTURING THE SAME - An organic light-emitting display panel having a storage capacitor comprised of a storage electrode overlapping a power line with a first gate-insulating layer disposed therebetween, wherein the storage capacitor includes a groove portion formed on a lateral side of the power line overlapping the storage electrode so that the overlapping area of the power line and the storage electrode is kept constant, and a method of manufacturing the same. | 09-25-2008 |
20090167743 | DISPLAY DEVICE AND DRIVING METHOD OF THE SAME - A display device having a plurality of pixels, each pixel includes a light-emitting element, a storage capacitor, a driving transistor, a first switching transistor which supplies a data voltage to the storage capacitor in response to an on-voltage of a scanning signal, a second switching transistor which diode-connects the driving transistor in response to an on-voltage of a compensation signal, and a third switching transistor which supplies a driving voltage to the driving transistor in response to an on-voltage of a light emitting signal. The storage capacitor stores a control voltage depending on a threshold voltage of the driving transistor when the driving transistor is diode-connected, transmits the control voltage and the data voltage to the control terminal of the driving transistor, and a period in which the compensation signal is in an on-voltage state is longer than a period in which the scanning signal is in an on-voltage state. | 07-02-2009 |
20090206334 | DISPLAY SUBSTRATE, DISPLAY PANEL HAVING THE SAME, AND METHOD OF TESTING A DISPLAY SUBSTRATE - A display substrate includes a gate wire, a data wire which crosses the gate wire, a display part, a dummy pixel part and a test part. The display part includes a pixel element electrically connected to the gate wire and the data wire, and the pixel element includes a display element. The dummy pixel part surrounds the display part to protect the pixel element from static electricity. The test part is formed adjacent to the display part and includes a test element having a test display element formed in a substantially same manner as the display element. | 08-20-2009 |
20090206421 | ORGANIC LIGHT EMITTING DISPLAY AND MANUFACTURING METHOD THEREOF - Disclosed are an organic light emitting display and a manufacturing method thereof. The organic light emitting display includes an organic light emitting section that generates a light, a first thin film transistor that drives the organic light emitting section and includes a first polysilicon layer and a first gate electrode formed below the first polysilicon layer, and a second thin film transistor connected to the first thin film transistor and includes a second polysilicon layer and a second gate electrode formed above the second polysilicon layer. The first and second polysilicon layers are formed on the same layer. | 08-20-2009 |
20090256150 | THIN FILM TRANSISTOR ARRAY PANEL AND METHOD FOR MANUFACTURING THE SAME - A thin film transistor array panel according to an exemplary embodiment of the present invention comprises a substrate; a first signal line and a second signal line disposed on the substrate; a switching thin film transistor connected to the first signal line and the second signal line, and comprising a first insulating layer; a driving thin film transistor connected to the switching thin film transistor and comprising a second insulating layer; and a discharge thin film transistor connected to one of the first signal line and the second signal line, and comprising the first insulating layer and the second insulating layer. | 10-15-2009 |
20090262049 | ORGANIC LIGHT-EMITTING SUBSTRATE, METHOD OF MANUFACTURING THE SAME, AND ORGANIC LIGHT-EMITTING DISPLAY DEVICE HAVING THE SAME - An organic light-emitting substrate includes a base substrate, a gate line, a data line, a bias line, an organic light-emitting diode, a switching transistor, a driving transistor and a repair line. The bias line is spaced apart from the gate line and the data line. The organic light-emitting diode includes a pixel electrode, a common electrode and an organic light-emitting part. The switching transistor is connected to the gate line and the data line. The driving transistor is connected to the bias line, the pixel electrode and the switching transistor. The repair line is formed from a pixel metal layer that is identical to the pixel electrode to be spaced apart from the pixel electrode, and is formed along the first direction to be overlapped with the gate line. Therefore, the repair line may repair electric defects of the gate line. | 10-22-2009 |
20090278831 | DISPLAY DEVICE - Embodiments of the present invention relate to a display device. In an embodiment, the display device includes a scanning signal line for transferring a scanning signal, a data line crossing the scanning signal line and transferring a data voltage, a switching transistor connected to the scanning signal line and the data line, a driving transistor connected to the switching transistor, a first transistor connected between the driving transistor and a driving voltage terminal, and a light-emitting element connected between the driving transistor and a common voltage terminal. The first transistor operates in a saturation region, and the driving transistor operates in a linear region. In this way, display characteristics may be improved by reducing deviation of a driving current due to deviation of characteristics of a driving transistor or a driving voltage. | 11-12-2009 |
20090284453 | DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - In accordance with one or more embodiments of the present disclosure, an organic light emitting device is provided. By including a current leakage unit in each pixel and slowly decreasing an amount of a current flowing to the organic light emitting element, both normal luminance and black luminance can be displayed in a frame. Thus, for example, impulsive driving can be simply performed without a separate manipulation. | 11-19-2009 |
20090296011 | MOTHER SUBSTRATE FOR USE IN PRODUCTION OF A LIQUID CRYSTAL DISPLAY PANEL, MANUFACTURING METHOD THEREOF AND DISPLAY PANEL - A mother substrate for a liquid crystal display panel includes a plurality of antistatic circuits connected with driving signal lines, respectively, and a plurality of switching circuits interposed between adjacent antistatic circuits of the antistatic circuits, respectively. Each switching circuit is controllable to electrically interconnect the adjacent antistatic circuits to one another when an inspection of a post-production available area is performed, and to electrically isolate the adjacent antistatic circuits from one another when a normal operation of the post-production available area is performed. | 12-03-2009 |
20090315870 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - The present invention relates to a display device and a driving method thereof. A display device in the present invention comprises: a capacitor connected between a first node and a second node; a switching transistor controlled by a first scanning signal and transmitting a data voltage to the first node; an emission control transistor controlled by a second scanning signal and transmitting a reference voltage to the second node; a driving transistor comprising a control terminal connected to the first node, an output terminal connected to the second node, and an input terminal; a driving control transistor controlled by a third scanning signal and transmitting a driving voltage to the input terminal of the driving transistor; and a light-emitting device connected to the second node. Accordingly, display contrast of a display device may be improved. | 12-24-2009 |
20100110047 | GATE DRIVING CIRCUIT AND DISPLAY DEVICE HAVING THE GATE DRIVING CIRCUIT - An output part outputs a high voltage of a first clock signal as a high voltage of an (m)-th gate signal (‘m’ is a natural number) and a low voltage in response to a high signal of an (m+1)-th gate signal outputted from an (m+1)-th stage. A first maintenance part maintains a control part of the pull-up part at a low voltage in response to an (m−1)-th node signal or an (m+1)-th node signal lower than a high signal of a second clock signal having a phase opposite to the phase of the first clock signal received from an (m−1)-th stage or the (m+1)-th stage. A second maintenance part maintains the low voltage of the (m)-th gate signal in response to the (m−1)-th node signal or the (m+1)-th node signal. | 05-06-2010 |
20100123697 | Display Device and Driving Method Thereof - A display device and a method of driving the display device are provided. The threshold voltage of a driving transistor is compensated such that even when the threshold voltage of the driving transistor is varied, the emission of light with respect to a predetermined data voltage occurs with a predetermined luminance, based on a diode-connected compensation transistor and a plurality of switching transistors. | 05-20-2010 |
20100225627 | VERTICAL ALIGNMENT DISPLAY DEVICE WITH ENHANCED CONTRAST - A vertical alignment liquid crystal display includes two sub-pixels each with a variable capacitor. A pixel is bisected into a high gray sub-pixel and a low gray sub-pixel through forming a variable capacitor at each sub-pixel. With this structure, the sub-pixels express different grays so that lateral visibility is enhanced. It is not required in bisecting a pixel into two sub-pixels to form separate wires for applying different signals thereto, and the amount of data to be processed at the driver for driving the display device is reduced. Furthermore, a pixel is bisected into two sub-pixels with variable capacitors in a simplified manner, and it is not required to form additional wires and elements, so the aperture ratio is enhanced. | 09-09-2010 |
20130100095 | VERTICAL ALIGNMENT DISPLAY DEVICE WITH ENHANCED CONTRAST - A vertical alignment liquid crystal display includes two sub-pixels each with a variable capacitor. A pixel is bisected into a high gray sub-pixel and a low gray sub-pixel through forming a variable capacitor at each sub-pixel. With this structure, the sub-pixels express different grays so that lateral visibility is enhanced. It is not required in bisecting a pixel into two sub-pixels to form separate wires for applying different signals thereto, and the amount of data to be processed at the driver for driving the display device is reduced. Furthermore, a pixel is bisected into two sub-pixels with variable capacitors in a simplified manner, and it is not required to form additional wires and elements, so the aperture ratio is enhanced. | 04-25-2013 |