Patent application number | Description | Published |
20110227505 | ORGANIC LIGHT EMITTING DISPLAY DEVICE - An organic light emitting display device includes a display unit having pixels located at crossing regions of scan, control, data and sensing lines. Scan, control line, and data drivers respectively supply scan, control, and data signals to the scan, control, and data lines. A switching unit selectively couples the data lines to output lines of the data driver, a reference voltage source, or a negative bias voltage source. A sensing unit senses degradation information of an organic light emitting diode in the pixels and threshold voltage of a driving transistor in the pixels through the sensing lines. A control block stores the sensed degradation information and threshold voltage information. A timing controller is configured to generate a second data by converting an externally inputted first data using the degradation information and the threshold voltage information, and supply the second data to the data driver. | 09-22-2011 |
20110234644 | DISPLAY DEVICE, IMAGE SIGNAL CORRECTION SYSTEM, AND IMAGE SIGNAL CORRECTION METHOD - A display device includes a display unit and a controller, the controller generating and transmitting a scan signal and an image data signal to a scan driver and a data driver, respectively. The controller includes a memory unit storing a look-up table of basic correction amounts for a test image data signal according a comparison result of comparing a measured value of an image of the display unit displaying the test image data signal with a target value of the test image data signal, and a data controller storing data for a modulation coefficient for applying the look-up table to the supplied image data signal, calculating a full correction amount corresponding to the supplied image data signal using the modulation coefficient and the basic correction amount of the look-up table, and outputting a corrected image data signal by correcting the supplied image data signal by the full correction amount. | 09-29-2011 |
20110267376 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF - An organic light emitting display device includes: pixels connected to corresponding scanning lines and corresponding data lines; a scanning driver for supplying scanning signals to the scanning lines; a data driver for supplying data signals to the data lines; and a data processor for generating a luminance look-up table corresponding to a likelihood of burn-in for the pixels, for generating output data from input data corresponding to the look-up table, and for supplying the output data to the data driver. | 11-03-2011 |
20120100644 | ORGANIC LAYER DEPOSITION APPARATUS, AND METHOD OF MANUFACTURING ORGANIC LIGHT-EMITTING DISPLAY APPARATUS USING THE SAME - An organic layer deposition apparatus including an electrostatic chuck combined with a substrate so as to fixedly support the substrate. The organic layer deposition apparatus including a receiving surface that has a set curvature for receiving the substrate; a deposition source for discharging a deposition material toward the substrate; a deposition source nozzle unit disposed at a side of the deposition source and including a plurality of deposition source nozzles arranged in a first direction; and a patterning slit sheet disposed to face the deposition source nozzle unit, and having a plurality of patterning slits arranged in a second direction perpendicular to the first direction, wherein a cross section of the patterning slit sheet on a plane formed by lines extending in the second direction and a third direction is bent by a set degree, wherein the third direction is perpendicular to the first and second directions. | 04-26-2012 |
20120235175 | ORGANIC LIGHT-EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME - An organic light-emitting display apparatus that improves image quality characteristics, the organic light-emitting display apparatus including: a substrate; a first electrode formed on the substrate; a pixel-defining layer (PDL) formed on the first electrode to expose a set or predetermined region of the first electrode; an intermediate layer formed in the exposed predetermined region of the first electrode and including an organic emission layer; and a second electrode having a light-scattering face facing the substrate or facing oppositely away from the substrate, the second electrode being disposed on the intermediate layer. | 09-20-2012 |
20120302414 | RUBBING APPARATUS - A rubbing apparatus including a rubbing roller including an opening portion at a region of a circumferential surface of the rubbing roller, an outlet portion connected to the opening portion and open to an outside of the rubbing roller, and a groove portion connected to the opening portion and penetrating into the rubbing roller along the opening portion; and a rubbing cloth substantially surrounding the circumferential surface of the rubbing roller. | 11-29-2012 |
20130093654 | Organic Light Emitting Diode Display - An organic light emitting diode (OLED) display according to the present invention includes: a pixel portion wherein an organic light emitting diode including a pixel electrode, an organic emission layer, and a common electrode is formed, and a periphery portion surrounding the pixel portion and having a plurality of common voltage lines applying a common voltage to the common electrode. The common voltage lines include a plurality of common voltage pads to which the common voltage is applied from an external source, a common voltage contact portion overlapping an end of the common electrode and contacting the common electrode, a common voltage connection portion connecting a common voltage pad and the common voltage contact portion. A width of the common voltage contact portion is larger than that of the common voltage connection portion. | 04-18-2013 |
20130168679 | SEMICONDUCTOR DISPLAY DEVICE HAVING PATTERNED PADS AND IN CONTACT WITH A CIRCUIT BOARD BY THEMAL ADHESIVE RESIN MATERIAL - A display device includes a substrate comprising a display unit for displaying an image, a non-display unit around the display unit, and at least one first pad for sending an electrical signal to the display unit, a circuit board on the substrate and comprising at least one circuit terminal, and a conductive film between the substrate and the circuit board and including a plurality of conductive particles for electrically connecting the first pad and the circuit terminal, and an insulating resin surrounding the conductive particles, wherein the first pad includes a plurality of fine pad lines, and a region into which the insulating resin is dispersed during a thermal compressing operation located between adjacent ones of the fine pad lines. | 07-04-2013 |
20140124755 | THIN FILM TRANSISTOR AND METHOD OF MANUFACTURING THE SAME - A thin film transistor and method of manufacturing the same are disclosed. In one aspect, the thin film transistor includes a gate electrode positioned on a substrate It also includes a gate insulating layer positioned on the gate electrode and a semiconductor positioned on the gate insulating layer. It further includes a source electrode and a drain electrode positioned on the semiconductor, in which the semiconductor has a step at a boundary surface that is in contact with the gate insulating layer. | 05-08-2014 |
20140292185 | DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - A display device and a method of manufacturing the display device. The display device includes: a first substrate including a display region at which pixels are located; a second substrate on the first substrate while covering the display region; a sealant between the first substrate and the second substrate and surrounding the display region; and at least one protruding pattern located at an outer side of the sealant with respect to a center of the first substrate or the second substrate, on at least one of the first substrate or the second substrate. | 10-02-2014 |
20140292623 | ORGANIC LIGHT EMITTING DISPLAY DEVICE HAVING REPAIRED PIXEL AND PIXEL REPAIRING METHOD THEREOF - An organic light emitting display device employing organic light emitting diodes (OLEDs) is disclosed. One aspect includes a plurality of pixels positioned at intersection portions of scan lines and data lines, each having an organic light emitting diode and a pixel circuit driving the organic light emitting diode; a scan driver supplying a scan signal to the scan lines and supplying an emission control signal to an emission control line coupled to the pixels; and a data driver supplying a data signal to the data lines. In such organic light emitting display, the pixel circuit within each pixel includes three or more transistors and one or more capacitors, and the transistors included in a pixel circuit of some of the pixels is formed to be in a state in which the transistor is isolated from the other circuit devices in the pixel circuit or in a state in which the electrodes of the transistor are short-circuited. | 10-02-2014 |
20140292821 | DISPLAY DEVICE - A display device includes a scan driver, a data driver, a power supply unit configured to supply power through a plurality of power supply inlet portions, a pixel unit including a plurality of pixels that receives scan signals, emission control signals, data signals and the power so as to display an image, the pixel unit being partitioned into a plurality of partition areas to correspond to the respective power supply inlet portions, and a current limit circuit configured to calculate values of current for each of the partition areas based on gray scale data of an image signal, and configured to correct the gray scale data so as to limit luminance of the pixel unit when at least one of the values of current for each partition area is a reference value or more. | 10-02-2014 |
20140353632 | DISPLAY DEVICE - A display device includes a pixel unit including a plurality of pixels coupled to a plurality of control lines and to a plurality of power lines to commonly receive same control signals and power source, a plurality of inlet pads positioned outside the pixel unit, the plurality of inlet pads being configured to apply the power source to the plurality of power lines, a pad bar electrically coupling the plurality of inlet pads, and a plurality of coupling patterns contacting end portions of the plurality of power lines and corresponding end portions of the pad bar, the plurality of coupling patterns electrically connecting the plurality of power lines and the pad bar, and one or more of the end portions of the pad bar and the ends portions of the plurality of power lines have different contact areas with the plurality of coupling patterns. | 12-04-2014 |