Abstract: The present disclosure detects capacitance distribution between each of detection electrodes and a detected subject on a touch panel with a simple configuration. A drive sense switch element selected among a plurality of drive sense switch elements (DST) on the basis of a code sequence via control lines turns on, and drive sense lines are driven at a first potential. A difference between linear sum signals based on an electric charge of each of the detection electrodes is then read. Subsequently, a capacitance or a change in capacitance between each of the detection electrodes of a touch panel and a detected subject is detected on the basis of a sum-of-product computation performed on the difference between the linear sum signals and the code sequence.

Abstract: Capacitance distribution between each of detection electrodes and a stylus pen on a touch panel is detected with a simple configuration. A read step and a detection step are included. In the read step, a switch element selected among a plurality of drive sense switch elements (DST) between detection electrodes (E) and drive sense lines (DS) aligned in an X-axis direction based on a code sequence via control lines (DSS) aligned in a Y-axis direction is made to turn on, and a linear sum signal is read from each of the detection electrodes (E). In the detection step, a capacitance is detected.

Abstract: To acquire touch position data with a good SN ratio without affecting a display action of a display element, a touch panel includes a non-drive region and a drive region. The non-drive region moves so as to correspond to one of a plurality of scanning signal lines selected and driven in order in a display period included in each frame of a display element. The drive region represents a region except for the non-drive region. A touch panel controller drives a signal line corresponding to the drive region and stops driving a signal line corresponding to the non-drive region.

Abstract: Capacitance distribution on a touch panel is detected with a simple configuration. A drive switch element between each of electrodes and a corresponding drive line is made to turn on and the drive line is driven on the basis of a code sequence. A sense switch element between each of the electrodes and a corresponding sense line is made to turn on and a linear sum signal of each of the electrodes is read along the sense line.

Abstract: Capacitance distribution between each of detection electrodes and a stylus pen on a touch panel is detected with a simple configuration. A read step and a detection step are included. In the read step, a switch element selected among a plurality of drive sense switch elements (DST) between detection electrodes (E) and drive sense lines (DS) aligned in an X-axis direction based on a code sequence via control lines (DSS) aligned in a Y-axis direction is made to turn on, and a linear sum signal is read from each of the detection electrodes (E). In the detection step, a capacitance is detected.

Abstract: To acquire touch position data with a good SN ratio without affecting a display action of a display element, a touch panel includes a non-drive region and a drive region. The non-drive region moves so as to correspond to one of a plurality of scanning signal lines selected and driven in order in a display period included in each frame of a display element. The drive region represents a region except for the non-drive region. A touch panel controller drives a signal line corresponding to the drive region and stops driving a signal line corresponding to the non-drive region.

Abstract: Capacitance distribution is detected on a touch panel with a simple configuration. Drive sense lines (DS0 to DS(M?1)) are driven at a first potential on the basis of a code sequence. Subsequently, each of drive sense switch elements (DST22 and DST22?) corresponding to a hand-touching region (22) is made to turn off, and a linear sum signal based on an electric charge of each of detection electrodes (E) is read.

Abstract: Capacitance distribution on a touch panel is detected with a simple configuration. A drive switch element between each of electrodes and a corresponding drive line is made to turn on and the drive line is driven on the basis of a code sequence. A sense switch element between each of the electrodes and a corresponding sense line is made to turn on and a linear sum signal of each of the electrodes is read along the sense line.

Abstract: The present disclosure detects capacitance distribution between each of detection electrodes and a detected subject on a touch panel with a simple configuration. A drive sense switch element selected among a plurality of drive sense switch elements (DST) on the basis of a code sequence via control lines turns on, and drive sense lines are driven at a first potential. A difference between linear sum signals based on an electric charge of each of the detection electrodes is then read. Subsequently, a capacitance or a change in capacitance between each of the detection electrodes of a touch panel and a detected subject is detected on the basis of a sum-of-product computation performed on the difference between the linear sum signals and the code sequence.

Abstract: A touch panel system (1) according to one aspect of the invention includes: a stylus pen (15) including a drive circuit (26) that generates a first driving voltage based on a first code sequence and a second driving voltage based on a second code sequence, and a sensor circuit (40) that drives a pen point (38) with a multiplexed voltage obtained by multiplexing the first driving voltage and the second driving voltage; and a touch panel controller (2) that detects a position of the stylus pen (15) touching a touch panel.

Abstract: A touch panel system (1) according to one aspect of the invention includes: a stylus pen (15) including a drive circuit (26) that generates a first driving voltage based on a first code sequence and a second driving voltage based on a second code sequence, and a sensor circuit (40) that drives a pen point (38) with a multiplexed voltage obtained by multiplexing the first driving voltage and the second driving voltage; and a touch panel controller (2) that detects a position of the stylus pen (15) touching a touch panel.

Abstract: An image processing device that reduces influence by a compressibility error of image data generated by a previous frame on output image data is disclosed. The image processing device generates a compressibility error prediction value, based on an input image data, generates substitute image data of the input image data, based on an emergence tendency of the compressibility error, selects the input image data or the substitute image data to set a result as current image data, generates next state image data, compresses the next state image data to generate compressed state image data, stores the compressed state image data in a frame memory, generates the state image data by reading the compressed state image data from the frame memory and decompressing the same, and generates output image data, based on the current image data and the state image data.

Abstract: An image processing device that reduces influence by a compressibility error of image data generated by a previous frame on output image data is disclosed. The image processing device generates a compressibility error prediction value, based on an input image data, generates substitute image data of the input image data, based on an emergence tendency of the compressibility error, selects the input image data or the substitute image data to set a result as current image data, generates next state image data, compresses the next state image data to generate compressed state image data, stores the compressed state image data in a frame memory, generates the state image data by reading the compressed state image data from the frame memory and decompressing the same, and generates output image data, based on the current image data and the state image data.

Abstract: The liquid crystal display device (100) according to the present invention performs display in a stereoscopic display mode. In each of the plurality of pixels in the liquid crystal display device (100), left-eye image data and right-eye image data are alternately written every two successive vertical scanning periods. Each of the plurality of pixels exhibits the same polarity over the two vertical scanning periods in which left-eye image data is written, and exhibits the same polarity over the two vertical scanning periods in which the right-eye image data is written. Accordingly, the liquid crystal display device (100) performs stereoscopic display with suppressed display unevenness.