Patent application number | Description | Published |
20080204438 | Organic light emitting display, controller therefor and associated methods - A display driven by a data signal and a light emission signal may be controlled by a control system including a first through fourth controller. The first controller may select a gamma value in accordance with ambient illumination and output a corresponding gamma compensation signal to control a gradation voltage of input image data. The second controller may compare the ambient illumination with a reference value, generate a selection signal in response thereto, and provide changed image data obtained by changing input image data in accordance with the selection signal as the data signal. The third controller may apply a scaling factor to the input image data generated from extracted features related to the input image data and a scale ratio obtained from the extracted features, and output scaled image data as the data signal. The fourth controller may control a pulse width of the emission control signal. | 08-28-2008 |
20080218448 | Organic electro luminescence display and driving method of the same - Disclosed are an organic electro luminescence display and a driving method of the same. The present invention provides an organic electro luminescence display including a pixel unit for displaying an image to correspond to a scan signal, a light emission control signal and a data line. The image is composed of a plurality of frames. The organic electro luminescence display of the present invention includes a scan driver for supplying the scan signal and the light emission control signal to the pixel unit, a data driver for generating a data signal with a video data to supply the generated data signal to the pixel unit, a control unit for controlling a pulse width of the light emission control signal using a frame data which is the sum of the video data inputted to one frame and controlling one frame time according to the size of the frame data, and a power supply unit for supplying a first power and a second power to the pixel unit. | 09-11-2008 |
20090167969 | STEREOSCOPIC IMAGE DISPLAY DEVICE AND ELECTRONIC DEVICE WITH THE SAME - A stereoscopic image display device including a light source and a light controller for selectively transmitting or blocking light provided by the light source. The light controller includes a first substrate, and first and second electrodes alternatively formed on the first substrate along a first direction. The first and second electrodes are spaced apart from each other at a predetermined interval. The first and second electrodes are electrically connected, respectively, to first and second connection electrodes. The light controller also includes a second substrate which is substantially parallel to the first substrate, and third and fourth electrodes alternately formed on the second substrate along a second direction. The third and fourth electrodes are spaced apart from each other at a predetermined interval. The third and forth electrodes are electrically connected, respectively, to third and fourth connection electrodes. | 07-02-2009 |
Patent application number | Description | Published |
20120026155 | ORGANIC LIGHT EMITTING DISPLAY - There is provided an organic light emitting display. The organic light emitting display includes a display unit including pixels coupled to scan lines, control lines, and data lines; a control line driver for providing control signals to the pixels through the control lines; a scan driver for providing scan signals to the pixels through the scan lines; a data driver for providing data signals to the pixels through the data lines; a first power source driver for applying a first power to the pixels of the display unit; a second power source driver for applying a second power to the pixels of the display unit; and a timing controller for controlling the control line driver, the power source drivers, the scan driver, and the data driver. The timing controller is configured to determine a refresh rate of input data to control a length of an emission period in a frame. | 02-02-2012 |
20120026207 | ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF DRIVING THE SAME - There is provided an organic light emitting display capable of minimizing noise. A method of driving the organic light emitting display includes setting pixels included in horizontal blocks into a non-emission state, the pixels charging voltages corresponding data signals, the pixels starting to emit light at different times in units of the horizontal blocks, and emitting light from the pixels according to the charging voltages. | 02-02-2012 |
20120044221 | ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display includes: an organic light emitting display panel including a display unit; pixel power source out lead bonding (OLB) pads located on first through fourth external side edges of the display unit to supply a pixel power to the display unit; pixel power source lines coupled to the pixel power source OLB pads to provide the pixel power to the display unit; pixel power supply flexible printed circuit boards bonded to the pixel power source OLB pads; signal OLB pads located on at least one external side edge among the first through fourth external side edges to supply a plurality of driving signals to the display unit; signal lines coupled to the signal OLB pads to provide the driving signals to the display unit; and tape carrier packages mounted with driving ICs and bonded to the signal OLB pads. | 02-23-2012 |
20140313242 | ORGANIC LIGHT EMITTING DIODE DISPLAY AND METHOD OF DRIVING THE SAME - A controller for a display panel may include a first supply circuit to output first and second driving voltages to a sub-pixel of a first color; and a second supply circuit to output third and fourth driving voltages to a sub-pixel of a second color. The first driving voltage may be greater than the second driving voltage, and the third driving voltage may be greater than the fourth driving voltage. Also, at least three of the first, second, third, and fourth driving voltages may be different from one another. | 10-23-2014 |
20140346444 | ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE ORGANIC LIGHT-EMITTING DISPLAY DEVICE - A display device includes a power line configured to transmit an electric current. The display device further includes a plurality of pixel electrode units associated with a single pixel of the display device and configured to share the electric current. The display device further includes a common electrode overlapping the plurality of pixel electrode units. The display device further includes a plurality of light-emitting units associated with the single pixel of the display device and disposed between the common electrode and the plurality of pixel electrode units, wherein each light-emitting unit of the plurality of light-emitting units overlaps a pixel electrode unit of the plurality of pixel electrode units. | 11-27-2014 |
20150015467 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device includes: a unit pixel including subpixels electrically connected to first power voltages and a second power voltage, where the first power voltages include a first first power voltage and a second first power voltage, and where the subpixels include: a first subpixel electrically connected to the first first power voltage and the second power voltage; a second subpixel electrically connected to the second first power voltage and the second power voltage; and a third subpixel electrically connected to the second first power voltage and the second power voltage, where the first power voltage is a voltage having substantially a same level as a voltage, with which the first subpixel emits light at maximum luminance, and the second power voltage is a voltage having substantially a same level as a voltage, with which the second subpixel or the third subpixel emits light at maximum luminance. | 01-15-2015 |