Abstract: A conversion device includes: a DC bus provided between a DC power supply and an AC power supply; a first converter provided between the DC power supply and the DC bus to perform DC/DC conversion; a second converter provided between the DC bus and the AC power supply to perform DC/AC or AC/DC conversion; and a control unit configured to selectively cause the first converter and the second converter to operate within one cycle of the AC power supply, to alternately generate a part of an absolute value of an AC waveform, and a DC waveform, as voltage of the DC bus, wherein the control unit adds a compensation value in a positive direction, to a voltage target value for the DC bus, at a timing that should have corresponded to a discontinuity point where the AC waveform and the DC waveform are connected to each other.

Abstract: In a display apparatus provided with an electrophoresis layer, such a display apparatus as to improve the response performance of a touch detection is provided. A driving unit included in a display apparatus alternately repeats a display driving process for supplying a first driving signal to a driving electrode disposed in a selected partial display region and a detection driving process for supplying a second driving signal to a driving electrode disposed in another selected partial display region while successively cyclically changing the partial display region and successively cyclically changing another partial detection region. Moreover, in the detection driving process, a touch detection unit included in the display apparatus detects an input position at another selected partial detection region based on an electrostatic capacitance of the driving electrode disposed at another selected detection region.

Abstract: A conversion device includes: a DC bus provided between a DC power supply and an AC power supply; a first converter provided between the DC power supply and the DC bus to perform DC/DC conversion; a second converter provided between the DC bus and the AC power supply to perform DC/AC or AC/DC conversion; and a control unit configured to selectively cause the first converter and the second converter to operate within one cycle of the AC power supply, to alternately generate a part of an absolute value of an AC waveform, and a DC waveform, as voltage of the DC bus, wherein the control unit adds a compensation value in a positive direction, to a voltage target value for the DC bus, at a timing that should have corresponded to a discontinuity point where the AC waveform and the DC waveform are connected to each other.

Abstract: A LCD panel is proposed, which meets analog display mode and memory display mode. The LCD panel includes a capacitive element, first to third switch elements, and a circuit. The first switch element turns ON during a first operation for writing pixel potential from signal line to the capacitive element, and turns OFF during a second operation. The second and third switch elements turn OFF during the first operation. The second switch element turns ON during a readout period in the second operation, to read out the pixel potential from the capacitive element. The third switch element turns ON during a write period in the second operation, to rewrite the pixel potential into the capacitive element. The circuit restores a logic level of the pixel potential read out from the capacitive element, and rewrites inversion of the restored logic level to the capacitive element.

Abstract: An image pickup device capable of stably detecting an object irrespective of use conditions while reducing manufacturing costs is provided. When illumination light from a backlight is emitted to a proximity object from an I/O display panel, an electric charge is accumulated in image pickup pixels in accordance with total light amount, including reflected light originating from the backlight and external environment light. Moreover, when the illumination light is not emitted, a discharging electric charge is released from the image pickup pixels in accordance with the amount of environment light. Thereby, an environment light component is subtracted from an image pickup signal obtained from each of the image pickup pixels, so object information about the proximity object is obtained without influence of the environment light. Moreover, in a light reception drive circuit, fewer frame memories for producing a picked-up image from the image pickup signal are necessary.

Abstract: In a display apparatus provided with an electrophoresis layer, such a display apparatus as to improve the response performance of a touch detection is provided. A driving unit included in a display apparatus alternately repeats a display driving process for supplying a first driving signal to a driving electrode disposed in a selected partial display region and a detection driving process for supplying a second driving signal to a driving electrode disposed in another selected partial display region while successively cyclically changing the partial display region and successively cyclically changing another partial detection region. Moreover, in the detection driving process, a touch detection unit included in the display apparatus detects an input position at another selected partial detection region based on an electrostatic capacitance of the driving electrode disposed at another selected detection region.

Abstract: In a display apparatus provided with an electrophoresis layer, such a display apparatus capable of operating a driving electrode for use in displaying an image as an electrode for use in detecting an input position is provided. A display apparatus includes: a substrate; another substrate that is disposed so as to face the substrate; an electrophoresis layer sandwiched between the substrate and another substrate; a plurality of pixel electrodes formed on the substrate; and a plurality of driving electrodes formed on another substrate. An electric field is formed between each of the plurality of pixel electrodes and each of the plurality of driving electrodes, so that an image is displayed, and an input position is detected based on an electrostatic capacitance of each of the plurality of driving electrodes.

Abstract: An information input device includes: an input panel having an effective photo-detectable region in which a plurality of photodetectors are arranged for detecting an external proximity object, and having a shading region located in a margin of the effective photo-detectable region; a correction section performing outermost-region correction on an outermost photo-detection signal to increase intensity thereof, the outermost photo-detection signal being obtained from a photodetector located in an outermost-region of the effective photo-detectable region; and an image processor acquiring object information about one or more of a position, a shape and size of the external proximity object based on a resultant photo-detection signal obtained from the outermost-region correction.

Abstract: An image pickup device capable of stably detecting an object irrespective of use conditions while reducing manufacturing costs is provided. When illumination light from a backlight is emitted to a proximity object from an I/O display panel, an electric charge is accumulated in image pickup pixels in accordance with total light amount, including reflected light originating from the backlight and external environment light. Moreover, when the illumination light is not emitted, a discharging electric charge is released from the image pickup pixels in accordance with the amount of environment light. Thereby, an environment light component is subtracted from an image pickup signal obtained from each of the image pickup pixels, so object information about the proximity object is obtained without influence of the environment light. Moreover, in a light reception drive circuit, fewer frame memories for producing a picked-up image from the image pickup signal are necessary.

Abstract: An image pickup device capable of stably detecting an object irrespective of use conditions while reducing manufacturing costs is provided. When illumination light from a backlight 15 is emitted to a proximity object from an I/O display panel 20, an electric charge for charging is accumulated in each of image pickup pixels 33 in accordance with total light amount as a summation of reflected light Lon originating from the illumination light and environment light (outside light) L0. Moreover, when the above-described illumination light is not emitted, an electric charge for discharging is released from each of the image pickup pixels 33 in accordance with light amount of the environment light L0. Thereby, a component by the environment light L0 is subtracted in an image pickup signal obtained from each of the image pickup pixels 33, so object information about the proximity object is obtainable without influence of the environment light L0.

Abstract: A LCD panel is proposed, which meets analog display mode and memory display mode. The LCD panel includes a capacitive element, first to third switch elements, and a circuit. The first switch element turns ON during a first operation for writing pixel potential from signal line to the capacitive element, and turns OFF during a second operation. The second and third switch elements turn OFF during the first operation. The second switch element turns ON during a readout period in the second operation, to read out the pixel potential from the capacitive element. The third switch element turns ON during a write period in the second operation, to rewrite the pixel potential into the capacitive element. The circuit restores a logic level of the pixel potential read out from the capacitive element, and rewrites inversion of the restored logic level to the capacitive element.

Abstract: An LCD panel having analog display mode and memory display mode includes a capacitive element and first to third switch elements. The first switch element turns ON during a first operation for writing pixel potential from a signal line to the capacitive element, and turns OFF during a second operation. The second and third switch elements turn OFF during the first operation. The second switch element turns ON during a readout period of a second operation, to read out the pixel potential from the capacitive element. The third switch element turns ON during a write period in the second operation, to rewrite the pixel potential into the capacitive element.

Abstract: A display device having a pixel section including a plurality of pixel circuits arrayed in a matrix, a plurality of scan lines, a plurality of capacity lines, a plurality of signal lines, a drive circuit, and a generation circuit generating a small amplitude common voltage signal switching in level at a predetermined cycle, wherein each pixel circuit arranged at the pixel section contains a display element having a first pixel electrode and a second pixel electrode and a storage capacitor having a first electrode and a second electrode, the first pixel electrode of the display element, the first electrode of the storage capacitor, and one terminal of the switching element are connected, the second electrode of the storage capacitor is connected to the capacity lines arrayed in a corresponding row, and the common voltage signal is applied in a second pixel electrode of the display element.

Abstract: An image display apparatus includes a display section having a pixel unit included in a layout of a pixel matrix and provided with a memory unit used for storing a logic level of input image data; a vertical driving section for asserting a scan signal on a scan line provided for the display section; and a horizontal driving section for asserting a driving signal according to the input image data on a signal line provided for the display section.

Abstract: The present invention is a data transfer circuit applicable to a liquid crystal display apparatus with a drive circuit formed integrally, for example, on an insulation substrate, and configured such that only an inverted output of a latch result of a first latch section (41) or only a non-inverted output thereof is data-transferred to a second latch section (42) and, at least during a period of data transfer to the second latch section (42), a power supply voltage of the first latch section (41) is raised.

Abstract: An information input device includes an input panel including an illumination light source, a plurality of first light-receiving elements and one or more second light-receiving elements, the illumination light source emitting detection light for detecting an external proximity object, the plurality of first light-receiving elements receiving detection light emitted from the illumination light source and then reflected from the external proximity object, the second light-receiving elements for monitoring the intensity of the detection light; a correction section performing adaptive sensitivity correction on light-receiving signals obtained by the first light-receiving elements through use of an intensity monitor signal of detection light obtained by the second light-receiving element; and an image processing section obtaining object information about one or more of the position, shape and size of the external proximity object based on a picked-up image obtained from the light-receiving signals subjected to the

Abstract: A display device with an image pickup function includes: a plurality of pixel signal lines each supplied with a pixel signal; a plurality of display pixels each performing a display operation based on the pixel signal; and a plurality of image pickup elements each including a photo-detector and a capacitor, the photo-detector generating a current of a magnitude corresponding to a photo-detection amount, the capacitor performing a discharging operation which follows a charging operation with the current from the photo-detector to output a charged voltage for a read operation. In the display device, a voltage level of the pixel signal line during the discharging operation is equal to a voltage level of the pixel signal line during the reading operation.

Abstract: 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.

Abstract: 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.

Abstract: Disclosed herein is a display apparatus including: a display panel having a display function and a light-receiving/imaging function; a first image processing section configured to generate a detection signal that indicates whether a to-be-detected object has been detected based on a result of first image processing performed on an image taken by the light-receiving/imaging function; a second image processing section configured to perform second image processing on the image processed by the first image processing section, the second image processing having a heavier processing load than the first image processing; and a control section configured to control an operation of the second image processing section in accordance with the detection signal generated by the first image processing section, and, when it is determined that the processing by the second image processing section is not necessary, control the second image processing section to enter a sleep state.