Patent application number | Description | Published |
20090096906 | CLOCK SIGNAL GENERATION CIRCUIT, DISPLAY PANEL MODULE, IMAGE SENSOR APPARATUS, AND ELECTRONIC APPARATUS - A clock signal generation circuit of a delay locked loop type includes a delay line configured to delay a first clock signal to generate a second clock signal; a delay amount controller configured to change the amount of delay in the delay line in such a manner that a phase of the second clock signal is in synchronization with a phase of the first clock signal; a pseudo-lock detection section configured to detect a pseudo-locked state of the first clock signal and the second clock signal; and a pseudo-locked state release section configured to change the amount of delay in the delay line in a case that the pseudo-locked state is detected. | 04-16-2009 |
20090146711 | CLOCK SIGNAL GENERATING CIRCUIT, DISPLAY PANEL MODULE, IMAGING DEVICE, AND ELECTRONIC EQUIPMENT - A delay synchronization loop type clock signal generating circuit includes: a delay line for delaying a first clock signal by a set delay amount and outputting; a delay time length setting unit for setting a delay time length of the delay line, based on phase difference between a second clock signal output from an output terminal and the first clock signal; a phase relation determining unit for determining whether or not the phase relation of the first clock signal and the second clock signal are in a particular phase relation; and a phase inversion/non-inversion unit for performing phase inversion of the first clock signal on a transmission path including the delay line, at the time of detecting the particular phase relation. | 06-11-2009 |
20090146713 | CLOCK SIGNAL GENERATING CIRCUIT, DISPLAY PANEL MODULE, IMAGING DEVICE, AND ELECTRONIC EQUIPMENT - A delay synchronization loop type clock signal generating circuit includes: a digital delay line for delaying a first clock signal and generating a second clock signal; a ring-type shift register for setting the delay time length of the digital delay line by flip-flop output of each stage thereof; and a delay amount control unit for controlling supply of shift clocks to the ring-type shift register, based on phase relation between the first clock signal and the second clock signal. | 06-11-2009 |
20090219068 | Phase detector, phase comparator, and clock synchronizing device - A flip-flop circuit includes: a first latch circuit that receives input of a data signal and a rise delay clock signal, raises a signal of a first node according to the fall of the rise delay clock signal, and lowers the signal of the first node according to the rise of the rise delay clock signal; a second latch circuit that receives input of the signal of the first node and the clock signal and lowers a signal of a second node at timing when the clock signal falls; a third latch circuit that receives input of the signal of the second node and the clock signal and generates an output signal for maintaining the data signal; and a pull-down circuit that pulls down the signal of the first node with the rise delay clock signal. | 09-03-2009 |
20090243678 | Delay locked-loop circuit and display apparatus - A delay locked-loop circuit includes: a phase comparator detecting a phase difference between an external clock and an internal clock; an up/down counter controlling a delay time in accordance with an output signal from the phase comparator; and a delay line including plural unit delay circuits corresponding to plural bits of a signal output from the up/down counter in order to control the delay of the external clock to conform the external clock to the internal clock, and in which the unit delay circuits controlled by the output from a same bit in the output from the up/down counter are not connected adjacently to each other in the connection of the plural unit delay circuits in series. | 10-01-2009 |
20100079394 | INPUT DEVICE AND DISPLAY - An input device and a display allowing latency to be reduced without degradation in display performance are provided. An input device includes a panel including: a plurality of sensor devices two-dimensionally arranged in row and column directions, a drive circuit driving the plurality of sensor devices, and a processing circuit processing output signals from the plurality of sensor devices, in which the processing circuit, prior to taking in all of the output signals from the plurality of sensor devices, determines whether or not one or more ON signals, defined as output signals affected by an object which touches or comes close to a surface of the panel, are included in previously inputted output signals, and then outputs a determination result. | 04-01-2010 |
20100097340 | Liquid-crystal display panel and chopper-type comparator - A liquid-crystal display panel includes: gate lines each serving as a row-direction line which is one of the rows of a two-dimensional matrix; data signal lines each serving as a column-direction line which is one of the columns of the two-dimensional matrix; a plurality of liquid-crystal pixel sections which are laid out to form the two-dimensional matrix and each placed at the intersection of one of the gate lines and one of the data signal lines; chopper-type comparators each connected to one of the data signal lines and each used for converting the value of a sensor signal read out from one of the liquid-crystal pixel sections connected to the data signal lines into a binary value; and a shift register for converting outputs of the chopper-type comparators from parallel data into serial data and outputting the serial data. | 04-22-2010 |
20100141598 | DISPLAY, DISPLAY DRIVING METHOD, AND ELECTRONIC APPARATUS - A display includes: a display section having a plurality of pixels provided in a region where a first substrate and a second substrate are disposed opposite to each other; a switch provided in the region where the first substrate and the second substrate are disposed opposite to each other, the switch having two electrodes closed by a pressure from outside; a detecting section comparing a signal from the switch with a reference signal to determine whether the switch is closed or not; and a precharge section applying a precharge potential to a wiring in continuity with one of the electrodes of the switch prior to the detection at the detecting section. | 06-10-2010 |
20100188346 | DISPLAY APPARATUS, DISPLAY APPARATUS DRIVING METHOD, AND ELECTRONIC DEVICE - Disclosed herein is a display apparatus including: a display block configured to have a plurality of picture elements; a switch arranged inside the display block and configured to be closed by an external pressure; a detection block configured to detect whether the switch is closed based on a comparison between a signal supplied from the switch and a reference signal; a precharge block configured to give a precharge potential to a wire conducting with one of electrodes of the switch before detection is executed in the detection block; and a detection block potential supply block configured to give a predetermined potential to a wire conducting with the other electrode of the switch before detection is executed in the detection block. | 07-29-2010 |
20100188347 | LIQUID CRYSTAL DISPLAY DEVICE - An embodiment of the invention provides a liquid crystal display device, including a first substrate; a second substrate; a liquid crystal layer formed between the first substrate and the second substrate; a first sensor electrode formed on the first substrate; a second sensor electrode formed on the second substrate, and disposed so as to be adapted to contact the plurality of first sensor electrodes close to one another by pressing from a side of either the first substrate or the second substrate; and a sensor drive circuit for applying a voltage to a first wiring electrically connected to one of the plurality of first sensor electrodes which the second sensor electrode is adapted to contact by the pressing, and detecting a change in potential of a second wiring electrically connected to another one of the plurality of first sensor electrodes. | 07-29-2010 |
20100194710 | INFORMATION INPUT DEVICE AND INFORMATION INPUT/OUTPUT DEVICE - An information input device includes: a first substrate; a second substrate formed opposite to the first substrate; and a position detection portion including at least three or more sensor electrodes and detecting a position at which at least one of the first substrate and the second substrate bends by electrical change among the sensor electrodes. | 08-05-2010 |
20100271336 | IMAGE PICKUP DEVICE, DISPLAY-AND-IMAGE PICKUP DEVICE, AND ELECTRONIC DEVICE - Provided is an image pickup device with which object detection can be performed with a good stability no matter in what use conditions. A display area | 10-28-2010 |
20110043483 | DISPLAY, TOUCH PANEL AND ELECTRONIC DEVICE - A display with a touch panel allowed to achieve high response performance while reducing power consumption is obtained. The display includes a plurality of display elements performing display based on picture signals supplied to a plurality of picture signal lines, respectively, a plurality of sensor elements outputting touch signals indicating detection of an external proximity object to a plurality of sensor signal lines (SGL), respectively, a detection section (a comparator | 02-24-2011 |
20110210927 | DISPLAY DEVICE WITH TOUCH SENSOR, TOUCH PANEL, METHOD OF DRIVING TOUCH PANEL, AND ELECTRONIC DEVICE - In one example embodiment, a display device includes a drive control section operatively coupled to a signal line and a display section. The signal line has a first voltage. In one example embodiment, the display section includes: (a) a touch detection element which outputs a touch voltage; and (b) an electrode which has a second voltage. In one example embodiment, the drive control section increases a potential difference between the first voltage and the second voltage before the touch detection element outputs the touch voltage. | 09-01-2011 |
20120007828 | Detection device and display apparatus - A detection device includes a sensor unit in which a plurality of detection electrodes is positioned in a detection surface, a selection unit that selects one of the plurality of detection electrodes or a plurality of detection electrodes, an oscillation unit in which an oscillation frequency is determined by a capacitance generated in the one or plurality of detection electrodes selected by the selection unit, a conversion unit that outputs a signal corresponding to the frequency of a signal from the oscillation unit, and a switch unit that performs electrical connection/disconnection between a wiring for connecting the oscillation unit and the selection unit and a constant voltage line. | 01-12-2012 |
20120044166 | Touch detecting function display apparatus, driving circuit, driving method of touch detecting function display apparatus and electronic equipment - A touch detecting function display apparatus includes a plurality of common driving electrodes, a display element performing display, a touch detection element detecting an external approaching object, and a scanning driving unit performing first scanning driving for sequentially applying a display driving signal to the plurality of common driving electrodes in a time division manner and second scanning driving for sequentially applying a touch detection driving signal to the plurality of common driving electrodes in a time division manner, wherein the scanning driving unit performs the second scanning driving at a scanning speed higher than that of the first scanning driving, and applies the display driving signal to an overlapping common driving electrode when the common driving electrode selected as a target of the first scanning driving overlaps with the common driving electrode selected as a target of the second scanning driving. | 02-23-2012 |
20120044167 | Display apparatus with touch detection function, drive circuit, method of driving display apparatus with touch detection function, and electronic devices - A display apparatus with a touch detection function, includes: a plurality of common drive electrodes disposed in parallel so as to extend in one direction; a display element displaying on the basis of a pixel signal and a display drive signal; a touch detection element detecting an external approaching object on the basis of a touch-detection drive signal; and a scan drive section performing first scan driving to apply the display drive signal to the plurality of common drive electrodes sequentially by time division and second scan driving having a scan speed different from a scan speed of the first scan driving to apply the touch-detection drive signal to the plurality of common drive electrodes sequentially by time division, wherein the scan drive section drives the common drive electrodes for each plurality of the electrodes in the first and the second scan driving. | 02-23-2012 |
20120044195 | Display device with touch detection function, drive circuit, driving method of display device with touch detection function, and electronic unit - A display device with a touch detection function includes a plurality of common drive electrodes arranged side by side to extend in one direction, a display element performing display, based on a pixel signal and a display drive signal, a touch detection element of electrostatic capacitance type detecting an external proximity object based on a touch detection drive signal with an amplitude larger than that of the display drive signal, and a scan drive section performing first scan drive and second scan drive, the first scan drive allowing the plurality of common drive electrodes to be sequentially supplied with the display drive signal in a time-divisional manner, and the second scan drive allowing the plurality of common drive electrodes to be sequentially supplied with the touch detection drive signal in a time-divisional manner. | 02-23-2012 |
20120044196 | Position detection apparatus, display apparatus and electronic apparatus - Disclosed herein is a position detection apparatus including: a sensor section having a plurality of detection electrodes laid out on a detection surface; a select section configured to select one or more detection electrodes from the detection electrodes; an oscillation section having an oscillation frequency determined by a capacitance generated in the one or more detection electrodes selected by the select section; a conversion section configured to output an output signal representing the frequency of an oscillation signal generated by the oscillation section; and a control section configured to change the frequency of the oscillation signal generated by the oscillation section in accordance with the output signal output by the conversion section. | 02-23-2012 |
20120068961 | Touch detection function-attached display apparatus, driving method and driving circuit therefor, and electronic apparatus - Provided is a touch-detection-function-attached display apparatus including: common-driving electrodes disposed in parallel to extend in one direction; a display device performing display based on pixel and display-driving signals; a touch-detection device detecting an externally-approaching object based on a touch-detection-driving signal; and a scan-driving unit performing a first-scan driving for sequentially-applying the display-driving signal to the common-driving electrodes in a time-division manner and a second-scan driving for sequentially-applying the touch-detection-driving signal to the common-driving electrodes in a time-division manner at a scan speed different from the first-scan-driving and applying a DC potential to the common-driving electrode which is not selected as an object of the first and second scan driving, wherein the touch-detection-driving signal includes a DC portion sustained at the DC potential in a time interval where the pixel signal is applied to the display device and a pulse portion in a time interval other than the pixel-signal-application time interval. | 03-22-2012 |
20120262387 | DISPLAY PANEL WITH TOUCH DETECTION FUNCTION, METHOD OF DRIVING THE SAME, DRIVING CIRCUIT, AND ELECTRONIC UNIT - There are provided a display panel with a touch detection function, in which display operation is less affected by touch detection operation, a method of driving the display panel with a touch detection function, a driving circuit, and an electronic unit having the display panel with a touch detection function. The display panel with a touch detection function includes: one or more display elements; one or more drive electrodes; one or more touch detection electrodes; and a drive section selectively applying a DC drive signal or an AC drive signal to the drive electrodes. | 10-18-2012 |
20120262389 | DISPLAY PANEL WITH TOUCH DETECTION FUNCTION, DRIVE CIRCUIT, AND ELECTRONIC UNIT - There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend. | 10-18-2012 |
20120262390 | DISPLAY PANEL WITH TOUCH DETECTION FUNCTION, METHOD OF DRIVING THE SAME, DRIVE CIRCUIT, AND ELECTRONIC UNIT - There are provided a display panel with a touch detection function and a method of driving the same, a drive circuit, as well as an electronic unit, which make it possible to reduce an influence of a disturbance noise. The display panel includes: a signal generation section selecting one pulse period from a plurality of pulse periods prepared beforehand, and generating a synchronization signal including a series of pulses appearing at the selected pulse period; a display section performing display based on the synchronization signal; and a touch detection section performing touch detection operation based on the synchronization signal. | 10-18-2012 |
20120274612 | SEMICONDUCTOR DEVICE, DISPLAY DEVICE, AND ELECTRONIC DEVICE - Disclosed herein is a semiconductor device including: one or a plurality of pieces of first wiring having a main wiring section and a bifurcation wiring section; one or a plurality of pieces of second wiring having a trunk wiring section and a plurality of branch wiring sections within a gap region between the main wiring section and the bifurcation wiring section; one or a plurality of transistors each divided and formed into a plurality of pieces, the plurality of branch wiring sections individually functioning as a gate electrode and the one or plurality of transistors having a source region formed within the main wiring section and within the bifurcation wiring section and having a drain region formed between the plurality of branch wiring sections; and one or a plurality of pieces of third wiring electrically connected to the drain region of the one or plurality of transistors. | 11-01-2012 |
20130082977 | DISPLAY, TOUCH DETECTION UNIT, DRIVING METHOD, AND ELECTRONIC UNIT - A display includes: display elements; drive electrodes; touch detection electrodes each forming an electrostatic capacitance with corresponding one of the drive electrodes; and a drive section applying an AC drive signal to the drive electrodes during each of a plurality of touch detection periods, the AC drive signal involving multiple transition to generate one or more transition timing pairs. The AC drive signal includes at least a first transition timing pair and a second transition timing pair over the plurality of touch detection periods. The first transition timing pair has a first transition interval, and the second transition timing pair has a second transition interval different from the first transition interval. | 04-04-2013 |
20130127752 | DISPLAY DEVICE WITH TOUCH SENSOR, POTENTIAL CONTROL METHOD AND PROGRAM - A display device with a touch sensor includes: plural display pixel electrodes; a common electrode arranged opposite to the display pixel electrodes; a display function layer having an image display function; a display control circuit performing image display control so as to fulfill the display function of the display function layer by applying a voltage for display between the display pixel electrodes and the common electrode based on an image signal; and a touch detection electrode provided opposite to the common electrode and forming capacitance between the touch detection electrode and the common electrode, wherein a drive voltage for display applied to the common electrode by the display control circuit is used as a drive signal for the touch sensor, and a gate potential of TFT circuits included in the display pixel electrodes is increased during a period when the drive signal for the touch sensor is applied. | 05-23-2013 |
20130187887 | DISPLAY PANEL, DRIVER CIRCUIT, DRIVING METHOD, AND ELECTRONIC APPARATUS - A display panel includes: display elements; a plurality of drive electrodes; one or more touch detecting electrodes that form a capacitor along with the corresponding drive electrode; a main driver unit that generates a basic drive signal including a pulse part supplied to the drive electrodes; and a first auxiliary driver unit that includes a capacitive element and that exchanges electric charges between the capacitive element and the drive electrodes in synchronization with the pulse part. | 07-25-2013 |
20140292700 | DISPLAY PANEL WITH TOUCH DETECTION FUNCTION, METHOD OF DRIVING THE SAME, DRIVING CIRCUIT, AND ELECTRONIC UNIT - There are provide a display panel with a touch detection function, in which display operation is less affected by touch detection operation, a method of driving the display panel with a touch detection function, a driving circuit, and an electronic unit having the display panel with a touch detection function. The display panel with a touch detection function includes: one or more display elements; one or more drive electrodes; one or more touch detection electrodes; and a drive section selectively applying a DC drive signal or an AC drive signal to the drive electrodes. | 10-02-2014 |
20150028339 | SEMICONDUCTOR DEVICE, DISPLAY DEVICE, AND ELECTRONIC DEVICE - A semiconductor device including: one or more pieces of first wiring having a main wiring section and a bifurcation wiring section; one or a plurality of pieces of second wiring having a trunk wiring section and a plurality of branch wiring sections within a gap region between the main wiring section and the bifurcation wiring section; one or a plurality of transistors each divided and formed into a plurality of pieces, the plurality of branch wiring sections individually functioning as a gate electrode and the one or plurality of transistors having a source region formed within the main wiring section and within the bifurcation wiring section and having a drain region formed between the plurality of branch wiring sections; and one or a plurality of pieces of third wiring electrically connected to the drain region of the one or plurality of transistors. | 01-29-2015 |