Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposing the first substrate, a liquid crystal layer, at least one first detection electrode disposed in a display area and a plurality of second detection electrodes disposed in a peripheral area. In a display period in which images are displayed on the display area, a predetermined voltage is applied to the first detection electrode to drive the liquid crystal layer, and in a period in which the liquid crystal layer is not driven, the first detection electrode is set to a state of being not electrically connected to anywhere or being connected to a predetermined potential with an impedance of 50 k? or higher.

Abstract: A detection device includes a plurality of detection elements arranged in a matrix having a row-column configuration in a detection area of a substrate, and an initialization circuit configured to apply an initialization potential to each of the detection elements. The initialization circuit has a first mode to apply a same initialization potential to all the detection elements and a second mode to apply different initialization potentials to the detection elements adjacent to each other.

Abstract: A liquid crystal display device includes a liquid crystal layer provided between a first substrate and a second substrate, a detection electrode configured to detect an external proximity object, a plurality of pixels overlapping the detection electrode in plan view, and a detection circuit configured to detect a detected capacitance value generated in the detection electrode. A liquid crystal capacitance value generated between each of the pixels and the detection electrode includes a first capacitance value at a first gradation and a second capacitance value at a second gradation smaller than the first gradation, and the detection circuit corrects the detected capacitance value based on a ratio between number of pixels with the first gradation and number of pixels with the second gradation out of the pixels.

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate, detection electrodes provided to surround a display area where an image is displayed, and a common electrode provided over an entire surface of the display area. The common electrode includes a first lead wiring line that extends to a peripheral area around the display area, along a boundary part between a first detection electrode, which is one of the detection electrodes, and a second detection electrode adjacent to the first detection electrode. A capacitance formed between the first lead wiring line and the first detection electrode is substantially equal to a capacitance formed between the first lead wiring line and the second detection electrode.

Abstract: According to one embodiment, a display device includes a display area, a plurality of sensor electrodes and a shield electrode. The display panel includes a first substrate, a second substrate opposed to the first substrate, a liquid crystal layer sealed between the first substrate and the second substrate, a pixel electrode, and a counter-electrode. The plurality of sensor electrodes are arranged to surround the display area. The shield electrode is arranged between the plurality of sensor electrodes and the pixel electrode or the counter-electrode located closest to a boundary between the display area and a non-display area surrounding the display area, in planar view. A predetermined reference voltage is applied to the shield electrode.

Abstract: According to one embodiment, a display device includes a display panel and a ring-shaped electrode. The display panel includes a display area for displaying an image, a plurality of first electrodes arranged to surround the display area, and at least one second electrode arranged to surround the plurality of first electrodes. The ring-shaped electrode is arranged on the display panel and is arranged at a position overlapping with the second electrode in planar view. The ring-shaped electrode includes a protruding portion overlapping with at least one of the plurality of first electrodes in planar view.

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a sealant, a first electrode, an insulating film and a second electrode. The sealant bonds the first substrate and the second substrate and is provided in a peripheral area surrounding a display area. The first electrode is provided on the first substrate in the peripheral area. The insulating film covers the first electrode. The second electrode is provided on the second substrate in the peripheral area. The sealant contains a conductive member. At least one of the first electrode and the second electrode includes a plurality of fine line portions in an area where the first electrode, the insulating film, the sealant, and the second electrode are overlapped in planar view.

Abstract: According to one embodiment, a display device includes a display part, a plurality of sensor electrodes and a controller. The display part is configured to display an image. The plurality of sensor electrodes are arranged to surround the display part. The controller is electrically connected to the sensor electrodes, and is configured to detect an object close to or contacting the sensor electrodes. The controller drives at least one of the sensor electrodes as a detection electrode and drives at least one of the sensor electrodes as a drive electrode.

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate, detection electrodes provided to surround a display area where an image is displayed, and a common electrode provided over an entire surface of the display area. The common electrode includes a first lead wiring line that extends to a peripheral area around the display area, along a boundary part between a first detection electrode, which is one of the detection electrodes, and a second detection electrode adjacent to the first detection electrode. A capacitance formed between the first lead wiring line and the first detection electrode is substantially equal to a capacitance formed between the first lead wiring line and the second detection electrode.

Abstract: A detecting device includes a plurality of first electrodes arrayed in a first direction and a second direction intersecting the first direction in a detection region, an electrode drive circuit configured to supply a drive signal to the first electrodes, a detection circuit configured to detect a detection signal received from the first electrodes, and a coupling circuit configured to couple part of the first electrodes to the detection circuit as a detection electrode and couple the first electrodes disposed side by side with the detection electrode in at least the first direction and the second direction to the electrode drive circuit as a drive electrode in a first detection period.

Abstract: A display device is provided and includes display panel; sensor substrate formed on display panel; and M drive electrodes and detection electrodes extended in direction so as to intersect with M drive electrodes, wherein among M drive electrodes, any of lengths of N first drive electrodes, which are continuously adjacent to one another, is shorter than any of lengths of other N second drive electrodes which are continuously adjacent to one another, and number of detection electrodes which intersect with N first drive electrodes is larger than number of detection electrodes which intersect with N second drive electrodes.

Abstract: A technology which can improve the accuracy of touch detection is proposed. A display device includes: a touch panel including plural drive electrodes and plural detection electrodes; plural peripheral wirings; and plural switching elements each of which is disposed between a detection electrode and the corresponding peripheral wiring and that is connected to the detection electrode and the corresponding peripheral electrode. The touch panel executes detection by means of a mutual detection scheme using the plural drive electrodes and the plural detection electrodes. In a condition in which a predefined voltage is applied to the peripheral wirings when the plural switching elements are in an off-state, the voltages of the drive electrodes are changed, and subsequently a condition in which the changes of the voltages of the drive electrodes can be detected from the peripheral wirings is set, and the switching elements are turned from off to on.

Abstract: According to one embodiment, a display device includes a plurality of detection electrodes, a first shield electrode and a second shield electrode. The plurality of detection electrodes are disposed in a peripheral area surrounding a display area configured to display an image. The first shield electrode is disposed on a first substrate and in at least the peripheral area, the first shield electrode having a predetermined fixed potential. The second shield electrode is disposed on a second substrate and in at least the peripheral area, the second shield electrode having the predetermined fixed potential. The first shield electrode and the second shield electrode are disposed, in a plan view, on a side of the display area with respect to each of the detection electrodes.

Abstract: A technology that can make the touch detection results at corner portions proper is proposed. A display device includes a display panel, a sensor substrate formed on the display panel, and plural drive electrodes and plural detection electrodes extended in a direction so as to intersect with the plural drive electrodes on the sensor substrate. Among the plural drive electrodes, any of the lengths of N first drive electrodes (where N represents the number), which are continuously adjacent to one another, is shorter than any of the lengths of the other drive electrodes. An area where at least one drive electrode among the N first drive electrodes and at least one detection electrode overlap each other is larger than the area of an intersectional portion where any of the other drive electrodes and any of the other detection electrodes overlap each other.

Abstract: A technology which can improve the accuracy of touch detection is proposed. A display device includes: a touch panel including plural drive electrodes and plural detection electrodes; plural peripheral wirings; and plural switching elements each of which is disposed between a detection electrode and the corresponding peripheral wiring and that is connected to the detection electrode and the corresponding peripheral electrode. The touch panel executes detection by means of a mutual detection scheme using the plural drive electrodes and the plural detection electrodes. In a condition in which a predefined voltage is applied to the peripheral wirings when the plural switching elements are in an off-state, the voltages of the drive electrodes are changed, and subsequently a condition in which the changes of the voltages of the drive electrodes can be detected from the peripheral wirings is set, and the switching elements are turned from off to on.

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposing the first substrate, a liquid crystal layer, at least one first detection electrode disposed in a display area and a plurality of second detection electrodes disposed in a peripheral area. In a display period in which images are displayed on the display area, a predetermined voltage is applied to the first detection electrode to drive the liquid crystal layer, and in a period in which the liquid crystal layer is not driven, the first detection electrode is set to a state of being not electrically connected to anywhere or being connected to a predetermined potential with an impedance of 50 k? or higher.

Abstract: A technology which can improve the accuracy of touch detection is proposed. A display device includes: a touch panel including plural drive electrodes and plural detection electrodes; plural peripheral wirings; and plural switching elements each of which is disposed between a detection electrode and the corresponding peripheral wiring and that is connected to the detection electrode and the corresponding peripheral electrode. The touch panel executes detection by means of a mutual detection scheme using the plural drive electrodes and the plural detection electrodes. In a condition in which a predefined voltage is applied to the peripheral wirings when the plural switching elements are in an off-state, the voltages of the drive electrodes are changed, and subsequently a condition in which the changes of the voltages of the drive electrodes can be detected from the peripheral wirings is set, and the switching elements are turned from off to on.

Abstract: A technology that can make the touch detection results at corner portions proper is proposed. A display device includes a display panel, a sensor substrate formed on the display panel, and plural drive electrodes and plural detection electrodes extended in a direction so as to intersect with the plural drive electrodes on the sensor substrate. Among the plural drive electrodes, any of the lengths of N first drive electrodes (where N represents the number), which are continuously adjacent to one another, is shorter than any of the lengths of the other drive electrodes. An area where at least one drive electrode among the N first drive electrodes and at least one detection electrode overlap each other is larger than the area of an intersectional portion where any of the other drive electrodes and any of the other detection electrodes overlap each other.

Abstract: The display device includes a detection circuit, a touch detection region including a plurality of detection electrodes, a peripheral region around the touch detection region, a plurality of wirings passing the peripheral region from the detection electrodes so as to be connected to the detection circuit, and at least one auxiliary wiring extending parallel to the wirings so as to be connected to the detection circuit.

Abstract: The display device includes a detection circuit, a touch detection region including a plurality of detection electrodes, a peripheral region around the touch detection region, a plurality of wirings passing the peripheral region from the detection electrodes so as to be connected to the detection circuit, and at least one auxiliary wiring extending parallel to the wirings so as to be connected to the detection circuit.