Patent application number | Description | Published |
20130113842 | METHOD OF DRIVING AN ELECTRO-WETTING DISPLAY PANEL AND ELECTRO-WETTING DISPLAY APPARATUS FOR PERFORMING THE SAME - A method of driving an electro wetting display panel includes applying a first data voltage to a pixel part of the display panel during a first section of a frame and applying a second data voltage different from the first data voltage to the same pixel part during a second section of the frame. The first data voltage is converted from display data based on a first gamma curve. The second data voltage is converted from the display data based on a second gamma curve. Light transmittance through the pixel part is changed based on movement of a fluid within the pixel part. | 05-09-2013 |
20130127817 | METHOD FOR DRIVING AN ELECTRO-WETTING DISPLAY PANEL AND ELECTRO-WETTING DISPLAY APPARATUS FOR PERFORMING THE SAME - A method of driving an electro-wetting display panel including a pixel part is provided. In the method, data voltages are applied to the electro-wetting display panel during a first time of a frame. The frame has the first time and a second time. The first time has a plurality of horizontal periods. The data voltages are generated based on reference gamma voltages. At least one of reference gamma voltages of one of the horizontal periods is different from another of the reference gamma voltages of another of the horizontal periods. A reset voltage is applied to the electro-wetting display panel during the second time of the frame. | 05-23-2013 |
20140306722 | CIRCUIT FOR MEASURING ELECTROSTATIC CAPACITY USING A CURRENT SOURCE TECHNIQUE AND CIRCUIT FOR MEASURING ELECTROSTATIC CAPACITY USING SAME - According to the present invention, a circuit for measuring electrostatic capacity using a current source technique, which includes an external capacitor and at least one pad capacitor, comprises: a charging/discharging unit charging and discharging the at least one pad capacitor using a constant current source; and a charge sharing switching unit performing a control to share a charge between the charged or discharged pad capacitor and the external capacitor. By charging/discharging the pad capacitor using a current source and sharing the charge between the pad capacitor and the external capacitor, the advantages of a technique for using a voltage source and a conventional technique for using a current source may be combined, and their drawbacks may each be remedied. | 10-16-2014 |
20150070343 | DISPLAY DEVICE - A display device includes a display panel including a plurality of scan lines, a plurality of data lines which crosses the plurality of scan lines, and a plurality of pixels that is connected to the plurality of scan lines and the plurality of data lines, a scan driving unit which provides a plurality of scan signals, each of which includes a scan-on signal and a scan-off signal, to the plurality of scan lines, a data driving unit that provides data voltages to the plurality of data lines, and a timing control unit that determines an order in which the scan signals are provided to the plurality of scan lines, where the scan-on signal is provided to each of the plurality of scan lines based on an order of averages of the data voltages transferred to the pixels connected thereto. | 03-12-2015 |
20150123961 | LIQUID CRYSTAL DISPLAY AND DRIVING METHOD THEREOF - A liquid crystal display includes: a display panel; a signal controller configured to receive an input image signal and an input control signal, output an output image signal and an output control signal, and determine a charge sharing between two or more data lines having voltages in the same polarity; and a data driver configured to convert, based on the output control signal, the image signal into data voltages to be supplied to the data lines connected to the pixels, the data voltages having positive levels and negative levels. The data driver is further configured to perform a first charge sharing by short-circuiting first and second data lines that are adjacent to each other, and a second charge sharing by short-circuiting third and fourth data lines having data voltages in the same polarity, wherein the first charge sharing and the second charge sharing may not temporally overlap with each other. | 05-07-2015 |
20150145900 | METHOD OF DRIVING DISPLAY PANEL AND DISPLAY APPARATUS FOR PERFORMING THE SAME - A method of driving a display panel includes generating a first driving period having a first driving frequency, generating a second driving period having a second driving frequency, and inserting a compensating frame between the first driving period and the second driving period. A display apparatus includes a display panel configured to display an image, and a display panel driver configured to generate a first driving period having a first driving frequency, to generate a second driving period having a second driving frequency, and to insert a compensating frame between the first driving period and the second driving period. | 05-28-2015 |
20150194122 | METHOD OF DRIVING DISPLAY PANEL AND DISPLAY DEVICE INCLUDING THE DISPLAY PANEL - A method of driving a display panel and display device including the same are disclosed. In one aspect, the method comprises providing input image data, generating a gamma reference voltage, generating a data voltage based on the gamma reference voltage and input image data, providing the data voltage to the display panel, and determining whether the input image data represents a still image or a video image. The method further comprises substantially periodically and alternately generating first and second common voltages when the input image data represents the still image, and providing the first and second common voltages to the display panel. | 07-09-2015 |
20150228216 | METHOD OF DRIVING DISPLAY PANEL AND DISPLAY APPARATUS FOR PERFORMING THE SAME - A method of driving a display panel includes dividing an input image into a plurality of segments; generating flicker levels of respective ones of the segments; determining a frame rate of the display panel based on the flicker levels of the segments; and outputting a data voltage to the display panel at the frame rate. | 08-13-2015 |