Patent application number | Description | Published |
20100013802 | DRIVER AND METHOD FOR DRIVING ELECTRO-OPTICAL DEVICE, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS - A driver subfield-drives an electro-optical device that includes a plurality of scanning lines, a plurality of data lines and a plurality of pixels, one of the plurality of pixels corresponding intersection point where one of the plurality of scanning lines and one of the plurality of data lines intersect each other. The driver includes a scan signal supplying unit that supplies the one of the scanning line with a scan signal to select the one of the scanning line, and a video signal supplying unit that supplies the one of the data line with a plurality of video data signals which includes a first video data signal and a second video data signal. An i-th selection period in which the one of the scanning line is selected is divided into a plurality of subfields which includes a first subfield and a second subfield. The first video data signal is supplied in the first subfield, and the second video data signal is supplied in the second subfield. | 01-21-2010 |
20100231560 | ELECTRO-OPTICAL APPARATUS, ELECTRONIC DEVICE, AND DRIVING METHOD FOR THE ELECTRO-OPTICAL APPARATUS - An electrophoretic display apparatus, electronic device, and driving method for an electrophoretic display apparatus are capable of significantly increasing the number of tones that can be expressed in a single frame period. The electrophoretic display apparatus divides at least part of a frame period into multiple subfield periods and controls the light transmission of an electro-optical layer by selecting, on a subfield period-by-subfield period basis, an on or off voltage as the driving voltage to apply between a pixel electrode and an opposing electrode to display multiple tones. A driving circuit of the electrophoretic display apparatus determines, in accordance with the tone to be displayed, the ratio between the application periods of the on and off voltages during the frame period, and the arrangement of the on and off voltages. The absolute values of the positive-polarity and negative-polarity voltages are different from each other. | 09-16-2010 |
20120147272 | METHOD OF PROCESSING VIDEO, VIDEO PROCESSING CIRCUIT, LIQUID CRYSTAL DISPLAY DEVICE, AND ELECTRONIC APPARATUS - A video processing circuit detects a risk boundary that is a part of a boundary between a dark pixel and a bright pixel, and is determined in accordance with the tilt azimuth of liquid crystal molecules from a boundary changed over the previous frame to the current frame and, for at least one side of dark pixels and bright pixels brought into contact with the detected risk boundary, corrects a video signal designating the application voltage of a liquid crystal element corresponding to the pixel of the frame brought into contact with the risk boundary out of a plurality of frames from the current frame to k frames (here, k is a natural number) following the current frame such that a lateral direction electric field generated between the dark pixel and the bright pixel decreases. | 06-14-2012 |
20130083244 | VIDEO PROCESSING METHOD, VIDEO PROCESSING CIRCUIT, LIQUID CRYSTAL DISPLAY, AND ELECTRONIC APPARATUS - A video processing circuit detects a risk boundary, which a portion of the boundary between a dark pixel and a bright pixel in an image represented by a video signal Vid-in, and is determined by a tilt azimuth of liquid crystal molecules, from the boundary, and corrects a video signal corresponding to at least one of the dark pixel and the bright pixel which is contiguous to the detected risk boundary in at least one field of a plurality of fields constituting one frame such that a period in which the risk boundary is present in one frame period is shortened. | 04-04-2013 |
20130194249 | VIDEO PROCESSING CIRCUIT, VIDEO PROCESSING METHOD, LIQUID CRYSTAL DISPLAY DEVICE, AND ELECTRONIC APPARATUS - A video processing circuit includes a boundary detection unit which detects a boundary between a first pixel in which an application voltage which is designated by a video signal Vid-in is lower than a first voltage and a second pixel which exceeds a second voltage in which the application voltage is higher than the first voltage in a normally black mode; and a correction unit which corrects a video signal in which an application voltage to a liquid crystal element corresponding to the first pixel which comes into contact with a boundary detected by the boundary detection unit is designated to be a video signal in which a correction voltage which is higher than the application voltage is designated in a part of period of one frame period, and a correction voltage which is lower than the application voltage is designated in other periods of the one frame period. | 08-01-2013 |
20130241914 | SIGNAL PROCESSING DEVICE, LIQUID CRYSTAL APPARATUS, ELECTRONIC EQUIPMENT, AND SIGNAL PROCESSING METHOD - A signal processing device which is used in a liquid crystal apparatus, includes a detection portion that detects a boundary between a first pixel to which a first voltage lower than a first reference voltage is applied and a second pixel to which a second voltage higher than a second reference voltage is applied on the basis of signals for controlling voltages applied to a plurality of pixels, and a correction portion that corrects the first voltage correlated with the first pixel to a third voltage which is higher than the first voltage and lower than the second voltage correlated with the second pixel. | 09-19-2013 |
20130241968 | SIGNAL PROCESSING DEVICE, LIQUID CRYSTAL DEVICE, ELECTRONIC APPARATUS AND SIGNAL PROCESSING METHOD - A signal processing device using a liquid crystal device having a plurality of pixels includes a storage unit that stores a signal which controls a level of transmittance in a plurality of pixels, a detection unit that, based on the signal that is stored in the storage unit, detects a first pixel associated with a second value which indicates higher transmittance than a first value, and a second pixel adjacent to the first pixel and associated with a fourth value which indicates the higher transmittance than a third value; and a correction unit that corrects the second value so that a difference of the transmittance indicated by the second value and the fourth value decreases. The third value indicates the higher transmittance than the first value, and the fourth value indicates a higher transmittance than the second value. | 09-19-2013 |
20130242194 | SIGNAL PROCESSING DEVICE, LIQUID CRYSTAL APPARATUS, ELECTRONIC EQUIPMENT, AND SIGNAL PROCESSING METHOD - A signal processing device which is used in a liquid crystal apparatus, includes a detection portion that detects a boundary between a first pixel correlated with a first signal for applying a first voltage lower than a first reference voltage and a second pixel correlated with a second signal for applying a second voltage higher than a second reference voltage on the basis of signals for controlling voltages applied to pixels, and a correction portion that corrects a signal correlated with M pixels including the first pixel to a third signal for applying a third voltage which is higher than the first voltage and lower than the second voltage in a correction period, wherein the correction portion varies M in the correction period. | 09-19-2013 |
20130257844 | SIGNAL PROCESSING DEVICE, LIQUID CRYSTAL APPARATUS, ELECTRONIC EQUIPMENT, AND SIGNAL PROCESSING METHOD - A signal processing device of a liquid crystal apparatus detects a boundary between a first pixel to which a first voltage lower than a first reference voltage is applied and a second pixel to which a second voltage higher than a second reference voltage is applied on the basis of a signal for controlling a voltage applied to pixels, corrects a signal correlated with M pixels including the first pixel to a third voltage which is higher than the first voltage and lower than the second voltage, outputs the third voltage as an applied voltage to the M pixels in a first period, outputs the first voltage as an applied voltage to the M pixels in a second period, and outputs the third voltage as an applied voltage to the M pixels in a third period. | 10-03-2013 |