Abstract: A display device includes a display panel and a touch panel, wherein the display panel has a light-emitting layer, a first electrode, and a second electrode, the touch panel has a first touch electrode, and a second touch electrode that is driven by a driving signal for detecting a touch in response to a change in mutual capacitance between the first touch electrode and second touch electrode, and the display device further includes a shield electrode formed between the first electrode and touch panel to be applied with a shield-electrode signal.

Abstract: A display device including a touch panel implements touch detection with sufficient accuracy without reducing the accuracy of a compensation process that uses an external compensation scheme. A plurality of sensor electrodes for touch detection are divided into a plurality of blocks such that each block corresponds to pixel circuits in a plurality of consecutive rows and pixel circuits in a plurality of consecutive columns. A cathode electrode is divided so as to correspond to the plurality of blocks, and each of the divided cathode electrodes is shared by a corresponding plurality of organic EL elements. A touch panel controller applies a touch driving signal to sensor electrodes belonging to a block different from a block corresponding to pixel circuits that are targets for a characteristic detection process, during a current measurement period included in a period during which the characteristic detection process is performed.

Abstract: A display device including a touch panel implements touch detection with sufficient accuracy without reducing the accuracy of a compensation process that uses an external compensation scheme. A plurality of sensor electrodes for touch detection are divided into a plurality of blocks such that each block corresponds to pixel circuits in a plurality of consecutive rows and pixel circuits in a plurality of consecutive columns. A cathode electrode is divided so as to correspond to the plurality of blocks, and each of the divided cathode electrodes is shared by a corresponding plurality of organic EL elements. A touch panel controller applies a touch driving signal to sensor electrodes belonging to a block different from a block corresponding to pixel circuits that are targets for a characteristic detection process, during a current measurement period included in a period during which the characteristic detection process is performed.

Abstract: For a node in which a difference between a base sensor value which is a sensor value obtained at certain time intervals and a first reference value which is a sensor value obtained when an organic EL element does not emit light in normal temperature state is greater than a threshold value, a correction value calculation circuit stores the product of a base computing value and a third reference value as a correction value in a correction value storage unit, the third reference value representing a ratio of the first reference value to a second reference value which is a sensor value obtained when the organic EL element emits light in normal temperature state, and the base computing value being obtained by providing the product of the third reference value and the base sensor value as an input value to a base computing value calculation circuit.

Abstract: For a node in which a difference between a base sensor value which is a sensor value obtained at certain time intervals and a first reference value which is a sensor value obtained when an organic EL element does not emit light in normal temperature state is greater than a threshold value, a correction value calculation circuit stores the product of a base computing value and a third reference value as a correction value in a correction value storage unit, the third reference value representing a ratio of the first reference value to a second reference value which is a sensor value obtained when the organic EL element emits light in normal temperature state, and the base computing value being obtained by providing the product of the third reference value and the base sensor value as an input value to a base computing value calculation circuit.

Abstract: There is achieved an electronic device including a position detector that can detect a touch position with high accuracy even when thickness reduction proceeds. A touch position detection method includes: a first determination step (S710) of determining whether or not negative-value data is included in mutual capacitance detection data; a second determination step (S720) of determining whether or not a mutual capacitance detection region and a self-capacitance detection region overlap; a third determination step (S730) of determining whether or not the maximum value of the absolute value of negative-value data and the area of a negative-value data region are equal to or greater than thresholds; a correction step (S740) of correcting the mutual capacitance detection data on the basis of self-capacitance detection data; and a touch position specification step (S750) of specifying a touch position on the basis of the mutual capacitance detection data after the correction.

Abstract: There is achieved an electronic device including a position detector that can detect a touch position with high accuracy even when thickness reduction proceeds. A touch position detection method includes: a first determination step (S710) of determining whether or not negative-value data is included in mutual capacitance detection data; a second determination step (S720) of determining whether or not a mutual capacitance detection region and a self-capacitance detection region overlap; a third determination step (S730) of determining whether or not the maximum value of the absolute value of negative-value data and the area of a negative-value data region are equal to or greater than thresholds; a correction step (S740) of correcting the mutual capacitance detection data on the basis of self-capacitance detection data; and a touch position specification step (S750) of specifying a touch position on the basis of the mutual capacitance detection data after the correction.

Abstract: A position detection device includes a sensor driving unit driving a touch sensor by providing a drive signal of a sine-wave to the touch sensor and a position detecting unit detecting a position of a touch on the touch sensor. The position detecting unit includes a first detection processing unit performing a touch detection process using an amplitude modulation scheme during a first detection processing period and a second detection processing unit performing the touch detection process using a frequency modulation scheme during a second detection processing period. A position detection method includes a sensor driving step of driving the touch sensor and a position detecting step of detecting the position. The position detecting step includes a first detection processing step of performing the touch detection process using the amplitude modulation scheme and a second detection processing step of performing the touch detection process using the frequency modulation scheme.

Abstract: To realize a display device with a built-in touch sensor, the display device having a small-scale circuit and being capable of performing accurate touch detection even when an operation means except for a finger (e.g., stylus pen) is in use. When a detection target is an operation means except for a finger (e.g., stylus pen), touch detection is performed in a first scanning period in a state where each a plurality of sensor electrodes arranged side by side in a first direction (e.g., a direction in which scanning signal lines extend) are connected electrically, and touch detection is performed in a second scanning period in a state where each a plurality of sensor electrodes arranged side by side in a second direction (e.g., a direction in which video signal lines extend) are connected electrically.

Abstract: A position detection device having high resistance to noise and excellent sensitivity is implemented. A position detection device includes a touch panel driving unit that drives a touch panel; and a touch sensing unit that detects a position where a touch on the touch panel is performed. The touch sensing unit includes a first detection processing unit that performs a touch detection process using an amplitude modulation scheme, based on a detection signal; and a second detection processing unit that performs a touch detection process using a frequency modulation scheme, based on the detection signal. In such a position detection device, a first detection processing period during which the touch detection process is performed by the first detection processing unit and a second detection processing period during which the touch detection process is performed by the second detection processing unit are provided.

Abstract: A sensor-equipped display device includes a scanning driving unit (4) that repeats a scanning operation of selecting scanning lines (G) sequentially in a first direction, and a data driving unit (5) that applies a voltage to data lines (S). The display device further includes a detection control unit (30) that repeats a scanning operation of driving drive lines (DRL) sequentially in the first direction, and detects signals of detection lines (SNL). During a period that overlaps a period for the screen scanning operation with respect to the scanning lines, the detection control unit executes the screen scanning operation with respect to the drive lines, and in the screen scanning operation with respect to the drive lines, the detection control unit outputs the driving signal, avoiding the drive line in an area corresponding to the scanning line that is being selected by the scanning driving unit.

Abstract: A display device, with a built-in touch sensor, including a display unit where sensor electrodes are provided, and a signal processing unit configured to process detection signals obtained from the sensor electrodes is provided with a segment-size switching unit configured to perform electrical connection and electrical disconnection of sensor electrodes such that a size of a segment serving as a unit of processing the detection signal becomes a size depending on an instruction signal. For example, the segment-size switching unit is configured by a switch circuit configured to switch a connection relationship between a plurality of sensor electrodes and a plurality of analog front ends, and a switching control unit configured to control operation of the switch circuit depending on the instruction signal.

Abstract: A sensor-equipped display device includes a scanning driving unit (4) that repeats a scanning operation of selecting scanning lines (G) sequentially in a first direction, and a data driving unit (5) that applies a voltage to data lines (S). The display device further includes a detection control unit (30) that repeats a scanning operation of driving drive lines (DRL) sequentially in the first direction, and detects signals of detection lines (SNL). During a period that overlaps a period for the screen scanning operation with respect to the scanning lines, the detection control unit executes the screen scanning operation with respect to the drive lines, and in the screen scanning operation with respect to the drive lines, the detection control unit outputs the driving signal, avoiding the drive line in an area corresponding to the scanning line that is being selected by the scanning driving unit.

Abstract: A sensor-equipped display device includes a scanning driving unit (4) that repeats a scanning operation of sequentially selecting a plurality of display scanning lines (G) in a first direction, and a data driving unit (5) that applies voltages to a plurality of data lines (S). Further, the sensor-equipped display device includes a detection control unit (30) that repeats a scanning operation of sequentially driving a plurality of detection scanning lines (DIAL) in the first direction, and detects signals of detection lines (SNL). The detection control unit (30) is capable of switching a first operation and a second operation. The first operation controls timings of the pulses of the driving signal based on timings of signal output to the data lines. The second operation outputs a driving signal having pulses of a frequency that is different from a frequency of the signal output to the data lines.

Abstract: A sensor-equipped display device (1) includes driving lines (DRL) arrayed in a first direction in an area that overlaps the screen; detection lines (SNL) arrayed in a second direction in the area that overlaps the screen; and a detection control unit (30) that outputs driving signals each of which includes a plurality of pulses, to the driving lines, respectively, and detects signals of the detection lines in correspondence to the diving signals. The detection control unit (30) outputs driving signals each of which includes a plurality of pulses, simultaneously to 2N driving lines (N is a natural number) that are sequentially arrayed in the first direction. Rising of the pulses of the driving signals for the N driving lines out of the 2N driving lines, and falling of the pulses of the driving signals for the other N driving lines, occur at the same time.

Abstract: A sensor-equipped display device is provided in which respective periods of time for the driving for display and the driving for detecting an object are ensured, while the mutual interference therebetween is suppressed. The sensor-equipped display device includes a scanning driving unit (4) that repeats a scanning operation of sequentially selecting a plurality of display scanning lines (G) in a first direction, and a data driving unit (5) that applies voltages to a plurality of data lines (S). Further, the sensor-equipped display device includes a detection control unit (30) that repeats a scanning operation of sequentially driving a plurality of detection scanning lines (DRL) in the first direction, and detects signals of detection lines (SNL).

Abstract: In a touch panel in which lines connected to electrodes used for detecting a touched position are arranged in an area where a touched position can be detected, the accuracy of detection of a touched position is improved. The touch panel includes a substrate; a group of electrode pairs arrayed in a predetermined direction on the substrate; a terminal unit arranged closer to one of ends in the predetermined direction on the substrate, than the group of electrode pairs is; a group of lead-out lines arranged on the substrate, for electrically connecting the group of electrode pairs and the terminal unit; and a control unit electrically connected with the terminal unit, the control unit supplying a signal through the group of lead-out lines to the group of electrode pairs, and detecting an amount of change in charges from each electrode pair. The control unit includes a provisional decision part, and a correction part.

Abstract: A touch panel with improved accuracy for detecting a touched position is provided. A touch panel 10 includes a substrate 18; a plurality of electrodes 24A, 24B provided on the substrate 18; a control unit (controller 16) that detects a touched position on the substrate 18; and a plurality of lead-out lines 22A, 22B that electrically connect the control unit and the electrodes 24A, 24B. At least a part of the lead-out lines 22A, 22B is arranged in an area on the substrate 18 where a touched position can be detected.

Abstract: Provided is a liquid crystal display device with a touch sensor in which abnormal alignment of liquid crystal molecules of a liquid crystal layer is hardly generated even when charged bodies get closer to the liquid crystal display device. The liquid crystal display device with a touch sensor includes a liquid crystal layer 13 interposed between a CF substrate 11 (a first substrate) and an array substrate 12 (a second substrate), in which at least one electrode of touch drive electrodes 14 and touch detection electrodes 15 is disposed on a surface of a front side of the CF substrate 11 and a polarizing plate 17 is further disposed on the electrode. On the surface of the front side of the CF substrate 11, dummy electrodes 16 are disposed in a region where neither the touch drive electrodes 14 nor the touch detection electrodes 15 are arranged. The polarizing plate 17 includes a conductive layer having a surface resistance of 109 (?/?) or more and 1010 (?/?) or less.

Abstract: A detecting device that can sufficiently exhibit its performance even when used integrally with a high-resolution display device is implemented. In a detecting device that can perform a location detection process using both of a self-capacitance scheme and a mutual-capacitance scheme, a touch panel controller drives a location detection electrode group formed in an area where location detection by the location detection process is to be performed, for example, such that the location detection process using the self-capacitance scheme is performed during a vertical flyback period (52) and the location detection process using the mutual-capacitance scheme is performed during horizontal flyback periods within an effective vertical scanning period (51). As such, when the location detection process is performed using at least one of the self-capacitance scheme and the mutual-capacitance scheme, the touch panel controller drives the location detection electrode group based on a synchronizing signal.