Patent application number | Description | Published |
20110193852 | LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - There is provided a liquid crystal display for minimizing power consumption. The liquid crystal display includes transmission regions formed in a liquid crystal panel in units of horizontal lines, reflection regions positioned between the transmission regions, first sub pixels formed in the transmission regions, and second sub pixels formed in the reflection regions. A total number of the second sub pixels is smaller than a total number of the first sub pixels. | 08-11-2011 |
20110234564 | LIQUID CRYSTAL DISPLAY AND METHOD OF OPERATING THE SAME - A liquid crystal display (LCD) is disclosed. The LCD has improved display quality and/or power consumption because current leakage in the pixels is effectively reduced. | 09-29-2011 |
20120105752 | LIQUID CRYSTAL DISPLAY WITH INTEGRATED TOUCH SCREEN PANEL AND DRIVING METHOD THEREOF - A liquid crystal display (LCD) with an integrated touch screen panel includes a plurality of pixels connected to a plurality of data lines and a plurality of gate lines, the gate lines being divided into a plurality of groups, a plurality of sensing electrodes, a plurality of common electrodes divided into a plurality of groups, a common electrode driver configured to simultaneously supply a driving signal to common electrodes within each group of the plurality of groups of the common electrodes, and to sequentially supply the driving signal to the plurality of groups of the common electrodes, and a gate driver configured to sequentially supply a gate signal to gate lines within each of the plurality of group of the gate lines. | 05-03-2012 |
20120113339 | Liquid crystal display with integrated touch screen panel - An LCD with an integrated touch screen panel includes a first substrate having a plurality of pixels formed thereon, wherein each pixel of the plurality of pixels is provided with a thin film transistor and a pixel electrode. A second substrate facing the first substrate, having a plurality of common electrodes formed inside thereof. The plurality of common electrodes is arranged in a first direction to correspond to the plurality of pixels. A plurality of sensing electrodes is outside of the second substrate and arranged in a second direction intersecting the first direction. A liquid crystal layer is between the first and the second substrates. A common electrode driver sequentially supplies a driving signal to the common electrodes and supplies a compensation signal having a phase opposite to the driving signal to the common electrodes. | 05-10-2012 |
20120154345 | Method and Apparatus for Driving Liquid Crystal Display - The present invention provides a liquid crystal display (LCD) device with reduced response time with respect to input frame data. The present invention also provides an LCD device for performing pre-tilt driving and over-drive driving using only two frame memories. According to the present invention, a method of driving a liquid crystal display (LCD) device comprises generating pre-tilt data with respect to a current frame by using previous frame data and current frame data, generating over-drive data with respect to the current frame by using the previous frame data and the current frame data, displaying the pre-tilt data with respect to the current frame, and displaying the over-drive data with respect to the current frame. | 06-21-2012 |
20130249884 | GATE DRIVING CIRCUIT AND DISPLAY APPARATUS USING THE SAME - A gate driving circuit includes a plurality of stages, each stage including an input unit to determine a level of voltage to input to a first node based on the first and second input signals and the first clock signal that is input according to the level of the voltage input to the first node and a first gate-off voltage that is input in response to the second clock signal, a second driving unit outputting the gate signals based on the third clock signal input according to the voltage input to the first node and a second gate-off voltage input in response to the second clock signal, and a leakage blocking unit blocking leakage current of a transistor by maintaining a level of voltage input to a third node connected to the first node via at least one transistor. | 09-26-2013 |
20140146028 | PIXEL, DISPLAY DEVICE COMPRISING THE PIXEL AND DRIVING METHOD OF THE DISPLAY DEVICE - A pixel, a display device including the same, and a driving method thereof. The display device includes: a data driver transmitting data signals; a scan driver generating and transmitting scan signals; a display panel including pixels, each emitting light with a driving current according to the data signals; a compensation signal unit generating and transmitting a compensation control signal for controlling simultaneous transmission of a predetermined bias voltage to each of the pixels before a data voltage according to the data signals is applied to each of the pixels; a power controller controlling voltage levels of the first power source voltage and the second power source voltage and supplying the level-controlled first and second power source voltages; and a timing controller generating the data signals by processing an external image signal and generating a plurality of driving control signals. | 05-29-2014 |
20140292624 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - An organic light emitting display device includes: pixels at crossing regions of data lines and scan lines, each of the pixels including an organic light emitting diode (OLED); a scan driver configured to drive the scan lines; a data driver configured to drive the data lines; a control line driving unit configured to drive control lines; and a compensation unit configured to extract at least one of deterioration information of the OLED or threshold voltage information of a driving transistor from at least one of the pixels during a sensing period. The data driver is further configured to supply a same first data signal to each of the pixels other than the at least one of the pixels in the sensing period. | 10-02-2014 |
20140354713 | ORGANIC LIGHT EMITTING DISPLAY DEVICE - An organic light emitting display device, including pixels positioned at crossing regions of scan lines and data lines and a bias voltage supply configured to supply bias voltages to the pixels. Each of the pixels includes an organic light emitting diode (OLED), a first transistor coupled between a first power supply and the OLED and driven in a saturation region by a corresponding one of the bias voltages to supply a set current to the OLED, a second transistor coupled between the first power supply and the OLED and driven in a linear region by a data signal supplied from a corresponding one of the data lines to turn on or off, and a second capacitor coupled between a gate electrode of the first transistor and the first power supply. | 12-04-2014 |
20140375533 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF - An organic light emitting display including pixels, a scan driver, a data driver, a control line driver, and a compensation unit. The pixels are positioned in an area defined by data lines, scan lines, and control lines, and each includes an organic light emitting diode. The scan driver drives the scan lines. The data driver drives the data lines. The control line driver drives the control lines. The compensation unit extracts threshold voltage information of a driving transistor included in each pixel during a sensing period. In the organic light emitting display, the compensation unit supplies a preset voltage to a gate electrode of the driving transistor so that a second current flows during the sensing period, and supplies a reference voltage to a drain electrode of the driving transistor during the period in which the second current flows. | 12-25-2014 |