Abstract: A tactile presentation device includes a touch surface fixed in orientation, an actuator configured to vibrate the touch surface along one axis within the plane of the touch surface, and a controller configured to control vibration of the actuator along the one axis to present tactile stimulus to a finger in contact with the touch surface. The controller is configured to control the actuator in such a manner that direction to start vibration for presenting tactile stimulus to the finger is within a range from minus 43° to plus 43° with respect to a direction of gravity projected on the touch surface or the opposite direction thereof.

Abstract: A tactile presentation device 10 comprises: a substrate 13; a plurality of wirings 11 extending on the substrate 13; a first insulating layer 14 formed on the substrate 13 and covering the wirings 11; a plurality of electrodes 12 disposed on the first insulating layer 14; a second insulating layer 15 covering the electrodes 12; and a drive circuit selectively applying a voltage signal to the electrodes 12 through the wirings 11, based on a control signal input from the outside. Each of the wirings 11 is electrically connected to one of the electrodes 12 via a through hole opened in the first insulating layer 14. At least one of the electrodes 12 presents tactile sense to a user who touches the second insulating layer 15 over the electrode 12 while the voltage signal is being applied. Each of the wirings 11 is partly covered with at least one of the electrodes 12.

Abstract: A tactile sense presentation device includes a panel that includes a support substrate, a plurality of electrodes, which are formed on the support substrate, extending in a predetermined direction, and an insulating layer covering the plurality of electrodes; and a drive unit that drives the panel, wherein a tactile sense is presented to an operator based on an electrostatic force generated between the electrodes and the operator by the drive unit applying a signal of a voltage to the electrode, a contact face of the insulating layer that is in contact with the operator has a surface roughness Ra of a predetermined range, and the voltage applied to the electrodes corresponding to an area in which the tactile sense is presented to the operator is a voltage corresponding to the surface roughness Ra of the contact face.

Abstract: The present disclosure provides a display device. The display device includes: a display panel, the display panel being divided into a display area and a peripheral area surrounding the display area, wherein a plurality of force sensors is disposed in the peripheral area; and at least one vibration device, configured to drive the display panel to vibrate, so as to release stress accumulated in the display panel. The technical solution of the present disclosure can improve the detection accuracy of the force sensor with respect to a force.

Abstract: A tactile presentation device includes a panel having a tactile presentation region including a plurality of electrodes, and a controller configured to control the panel. The controller is configured to supply a first sinusoidal signal and a second sinusoidal signal simultaneously to a first region in the tactile presentation region. The first sinusoidal signal and the second sinusoidal signal are supplied to different electrodes in the first region. The first sinusoidal signal and the second sinusoidal signal have the same frequency and different phases. The controller is configured to supply a reference signal having an amplitude smaller than the first sinusoidal signal and the second sinusoidal signal to a peripheral region surrounding the first region.

Abstract: An electric tool including a motor configured to be driven by a PWM control of a semiconductor switching element by using a power supply, a power transmission mechanism configured to transmit a rotation of the motor to an end tool, and a controller configured to control a rotation of the motor by a duty ratio of a PWM signal, wherein the controller is configured to set the duty ratio to a reference duty ratio less than 100% when a voltage of the power supply applied to the electric tool is within a predetermined range including a rated voltage of the electric tool, and wherein the controller is configured to drive the motor by setting the duty ratio to be higher than the reference duty ratio when the voltage of the power supply applied to the electric tool is lower than the predetermined range.

Abstract: An electronic device having a display screen that displays a user interface including at least one object, comprising: a display mechanism that displays the user interface; a coordinate detection mechanism that detects coordinates of a user touch point on the display screen; a first feedback presentation mechanism that presents tactile feedback at a prescribed point to make the user perceive the presence of an object; a measurement mechanism that measures a force generated by the user pressing the display screen; and a second feedback presentation mechanism that detects an operation trigger based on the force and generates mechanical vibration.

Abstract: Disclosed is a display device for use of a surface display of an arbitrary shape, including a plural number of display element units, each made up of a circuit that forms a single stage of a scanning circuit and a pixel circuit connected to an output of the scanning circuit, are arranged in a unicursal fashion on a display substrate.

Abstract: A capacitance detection circuit includes an excitation signal source configured to supply an AC driving voltage to drive the detection electrode, a high-pass filter configured to cause a current signal input from the detecting electrode to be output after being attenuated in a prescribed frequency region that is lower than a frequency of the excitation signal source, and a current signal measurement circuit connected between the high-pass filter and the excitation signal source. The current signal measurement circuit is configured to measure a current signal from the high-pass filter. The high-pass filter includes a first passive circuit element connected in series between the detection electrode and the current signal measurement circuit, and a second passive circuit element connected in series between the excitation signal source and a node between the detection electrode and the first passive circuit element.

Abstract: A touch panel includes X electrodes and Y electrodes disposed on a support substrate in such a manner that each of the Y electrodes intersects the X electrodes, X floating electrodes laminated on a first insulating layer at places opposed to the X electrodes, Y floating electrodes laminated on the first insulating layer at places opposed to the Y electrodes, and a second insulating layer covering the X floating electrodes and the Y floating electrodes. The area of X electrodes is smaller than the area of X floating electrodes and the area of Y electrodes is smaller than the area of Y floating electrodes in a unit lattice region of a lattice formed of the X electrodes and the Y electrodes. A mutual capacitance generated between an X electrode and a Y electrode decreases when a surface of the second insulating layer is touched by a pointer.

Abstract: When the excitation frequency of a touch panel and the frequency of external noise match or are close, noise cannot be removed by a bandpass filter. In addition, when a touch detection operating period is limited to a short period such as the no addressing period, the signal-to-noise ratio (S/N) decreases because frequency separation decreases and the noise removal effect by averaging is degraded. An electronic device of the present invention includes a sensor system (101), an excitation generator (102) that generates an intermittent sinusoidal signal and applies this signal to the sensor system, and a demodulator (105) that demodulates the amplitude modulated signal that is the output of the sensor system.

Abstract: Disclosed is a display device for use of a surface display of an arbitrary shape, including a plural. number of display element units, each made up of a circuit that forms a single stage of a scanning circuit and a pixel circuit connected to an output of the scanning circuit, are arranged in a unicursal fashion on a display substrate.

Abstract: The tactile sense presentation device, capable of effectively presenting a tactile sense (a sense of texture) on a touch panel, includes: a supporting substrate; a plurality of X-electrodes and Y-electrodes extended in parallel to each other on the supporting substrate; and driving circuits (X-electrode driving circuit, Y-electrode driving circuit) which apply a first-frequency voltage signal to the X-electrode corresponding to information regarding a target region inputted from outside among the plurality of X-electrodes, and applies a second-frequency voltage signal to the Y-electrode corresponding to information regarding the target region inputted from outside among the plurality of Y-electrodes to generate electric beat oscillation in the target region by an absolute value of a difference between the first and second frequencies.

Abstract: Disclosed is a display device for use of a surface display of an arbitrary shape, including a plural number of display element units, each made up of a circuit that forms a single stage of a scanning circuit and a pixel circuit connected to an output of the scanning circuit, are arranged in a unicursal fashion on a display substrate.

Abstract: The present disclosure provides a display device. The display device includes: a display panel, the display panel being divided into a display area and a peripheral area surrounding the display area, wherein a plurality of force sensors is disposed in the peripheral area; and at least one vibration device, configured to drive the display panel to vibrate, so as to release stress accumulated in the display panel. The technical solution of the present disclosure can improve the detection accuracy of the force sensor with respect to a force.

Abstract: X and Y electrodes arranged on a support substrate of the tactile sense presentation device are divided into M groups (here, M?2, M=4 in FIG. 14). When a presentation content of a tactile sense transits from the N-th frame to the (N+1)-th frame, the device, first, sets electrodes belonging to a group 1 to a floating state for a predetermined time and then, connects each electrode to an AC voltage signal source or the ground so as to present a tactile sense in the (N+1)-th frame. The device sequentially performs this operation for each group, and, when the operation of group M ends, transition between frames ends, and movement of the target area in which a texture sense is presented is completed. There is no case where all the electrodes are in the floating state together, and there is no interruption of the texture sense.

Abstract: An electronic apparatus includes a sensor system, an excitation generating unit which generates an intermittent sine wave signal and applies the same to the sensor system, and a demodulation unit which demodulates an amplitude modulated signal which is an output of the sensor system, in which the demodulation unit generates a demodulated signal using both a response of the sensor system in a period when the excitation generating unit outputs a sine wave and a response of the sensor system in a period, at least either immediately before or immediately after the above-mentioned period, when the excitation generating unit does not output a sine wave.

Abstract: A circuit of a tactile presentation device is configured to: connect first electrodes at least partially included in a target area to an AC voltage signal source and connect second electrodes at least partially included in the target area to another AC voltage signal source to present tactile senses in the target area; and in transition from a frame to the next frame, turn each of multiple first electrodes including the first electrodes and multiple second electrodes including the second electrodes into a floating state and subsequently connect each of the multiple first electrodes and the multiple second electrodes to a voltage signal source. A time to keep the floating state is set shorter than a first period for unnecessary tactile senses presented outside the target area to be weaker than unnecessary tactile senses presented outside the target area in the first period.

Abstract: The tactile sense presentation device, capable of effectively presenting a tactile sense (a sense of texture) on a touch panel, includes: a supporting substrate; a plurality of X-electrodes and Y-electrodes extended in parallel to each other on the supporting substrate; and driving circuits (X-electrode driving circuit, Y-electrode driving circuit) which apply a first-frequency voltage signal to the X-electrode corresponding to information regarding a target region inputted from outside among the plurality of X-electrodes, and applies a second-frequency voltage signal to the Y-electrode corresponding to information regarding the target region inputted from outside among the plurality of Y-electrodes to generate electric beat oscillation in the target region by an absolute value of a difference between the first and second frequencies.

Abstract: Disclosed is a display device for use of a surface display of an arbitrary shape, including a plural number of display element units, each made up of a circuit that forms a single stage of a scanning circuit and a pixel circuit connected to an output of the scanning circuit, are arranged in a unicursal fashion on a display substrate.