Mitsubishi Electric Corporation

Tae Orita

Takeshi Ono

Masafumi Agari

Tatsuya Nakamura

Seiichiro Mori

Naoki Nakagawa

Yuichi Sasaki

Takashi Miyayama

Mitsuru Sakai

Tsuyoshi Sempuku

Yuki Furumoto

Takuji Imamura

Yoshinori Ueno

Naoki Numata

Takayuki Morioka

Yusuke Shimasaki

Hiroya Yamarin

Hidetada Tokioka

Toshiaki Fujino

Masaya Nidaira

Akira Yamashita

Mikio Yamamuka

Kozo Ishida

Yuki Tsuda

Mikio Araki

Kageyasu Miyahara

Masami Hayashi

Regarding a tactile presentation panel, a tactile presentation panel that has a tactile presentation knob having a conductive member placed on an operation surface and presents a tactile sense to a user via the tactile presentation knob includes a movement amount calculation circuit that calculates a movement amount of the tactile presentation knob from current coordinates on the tactile presentation panel of the tactile presentation knob and past coordinates of the tactile presentation knob, a tactile strength calculation circuit that calculates a tactile strength to be applied to the user based on the movement amount, and a tactile presentation circuit that sets a voltage signal waveform based on the tactile strength. The movement amount is at least one of a rotation angle and a rotation speed of the tactile presentation knob.

Tactile presentation apparatus and tactile presentation knob

The present disclosure relates to a tactile presentation device presenting tactile to a user, and includes: a touch detection circuit detecting the user having contact with the tactile presentation knob and outputting positional information of the tactile presentation knob; a pressure detection circuit detecting an amount of pressing of the operation surface by the tactile presentation knob; a tactile control circuit determining a voltage signal generating friction force between the tactile presentation knob and the operation surface; and a pressure amount calculation circuit calculating a pressure amount based on the amount of pressing detected in the pressure detection circuit and adding the pressure amount to the pressing information, wherein generated is tactile caused by a change of the friction force between the tactile presentation knob and the operation surface by the voltage signal determined by the tactile control circuit.

Tactile presentation device, tactile presentation touch panel, and tactile presentation touch display

A tactile presentation panel includes a tactile presentation voltage generation circuit that generates a voltage signal having a first frequency to be applied to at least one first electrode located in at least a partial region on an operation surface of the tactile presentation panel, and generates a voltage signal having a second frequency different from the first frequency to be applied to at least one second electrode located in at least a partial region on the operation surface of the tactile presentation panel, a charge discharge portion that is connected to the tactile electrode and discharges charges accumulated in a conductive elastic portion, and a touch detection circuit that detects contact of the user with a tactile presentation knob.

Tactile presentation panel, tactile presentation touch panel, tactile presentation touch display, and tactile presentation knob

In a tactile sensation presentation panel according to the present disclosure, a tactile sensation presentation screen includes a tactile sensation electrode including a plurality of first electrodes and a plurality of second electrodes alternately disposed on a transparent insulation substrate at intervals. A first voltage signal having a first frequency is applied to the plurality of first electrodes located in at least a partial region of the transparent insulation substrate, and a second voltage signal having a second frequency different from the first frequency is applied to the plurality of second electrodes located in the at least partial region of the transparent insulation substrate. First electrostatic capacitance formed between the tactile sensation electrode and a pointer is calculated. An amplitude voltage and frequency of first and second voltage signals are adjusted based on the calculated first electrostatic capacitance.

Tactile sensation presentation panel, tactile sensation presentation touch panel, and tactile sensation presentation touch display

An object of the present disclosure is to provide a tactile presentation control apparatus that can provide an operation feeling of a dial knob that allows intuitive operation by a tactile sense of the user, and is user-friendly. A tactile presentation control apparatus according to the present disclosure that has a tactile presentation knob placed on an operation surface and presents a tactile sense to the user via the tactile presentation knob. The tactile presentation control apparatus includes a tactile control unit that performs control to present different tactile senses to each of a plurality of operation regions on the operation surface when the tactile presentation knob is rotationally operated. When the tactile presentation knob is present in one of the operation regions, the tactile control unit performs control to present, as the tactile sense, a frictional force generated in the tactile presentation knob to the operation region.

Tactile presentation control apparatus, tactile presentation panel, tactile presentation touch panel, and tactile presentation touch display

A touch panel device includes a cover panel having a front surface including an operation region on which a touch operation is performed and a back surface as a surface on a side opposite to the front surface, a first adhesive material provided on the back surface, a touch panel unit that includes a base substrate and a plurality of touch sensor electrodes provided on a region of the base substrate corresponding to the operation region and is arranged to face the back surface via the first adhesive material, a first displacement detection electrode provided on a part of the back surface outside a region of the back surface corresponding to the operation region, and a second displacement detection electrode provided on a part of the base substrate outside the region of the base substrate corresponding to the operation region to face the first displacement detection electrode.

Touch panel device

A touch panel includes a base substrate, a cover panel, a first electrode formed outside of a display region on a back surface of the cover panel, and a second electrode formed outside of the display region on a front surface of the base substrate. A pressure when the base substrate is pressed by the pointer through the cover panel is detected by measuring a change of a distance between the first electrode and the second electrode when the front surface of the cover panel is pressed as a change of electrostatic capacitance between the first electrode and the second electrode. The touch panel further includes a ground electrode formed on an outer peripheral side of the first electrode of the cover panel.

Touch panel and display apparatus including touch panel

In a haptic presentation touch panel detecting a location of a touch of a finger, a pen, and the like, and presenting a haptic sensation, a haptic presentation function is improved while location detection sensitivity is secured. The haptic presentation touch panel includes detection electrodes, a first dielectric layer covering the detection electrodes, haptic electrodes arranged not to overlap the detection electrodes in plan view, and a second dielectric layer covering the haptic electrodes, and the second dielectric layer has a greater relative permittivity than the first dielectric layer. Propagation of noise can thereby be suppressed even when a haptic presentation intensity is increased, and the location detection sensitivity can be secured.

Haptic presentation touch panel and display apparatus

An object of the present disclosure is to provide a tactile presentation control apparatus that can provide an operation feeling of a dial knob that allows intuitive operation by a tactile sense of the user, and is user-friendly. A tactile presentation control apparatus according to the present disclosure that has a tactile presentation knob placed on an operation surface and presents a tactile sense to a user via the tactile presentation knob. The tactile presentation control apparatus includes a tactile determination unit that determines the tactile sense according to a state of an apparatus operated with the tactile presentation knob, and a tactile control unit that performs control to present, as the tactile sense determined by the tactile determination unit, a frictional force between the tactile presentation knob and the operation surface in a state where the tactile presentation knob and the operation surface have contact with each other.

In relation to a tactile presentation panel, a tactile presentation panel has a tactile presentation knob placed on an operation surface and presents a tactile sense to a user via the tactile presentation knob, and includes a control circuit that divides the operation surface into a plurality of regions, assigns a control target to each of divided regions, and sets a tactile sense to be presented for each of the divided regions, a tactile control circuit that generates a tactile sense set by the control circuit for each of the divided regions by changing a frictional force between the operation surface and the tactile presentation knob, and a touch detection circuit that detects a position on the tactile presentation panel of the tactile presentation knob. The tactile presentation knob is placed in the divided region so that the control target is selected.

Tactile presentation panel, tactile presentation touch panel, and tactile presentation touch display

A touch panel includes a cover panel, a touch sensor substrate in which a sensor electrode for detecting a position of a pointing object is disposed in a detection region, an adhesive agent being disposed between the cover panel and the touch sensor substrate, a first electrode being disposed in an outer region of a region corresponding to the detection region of a second surface of the cover panel, and a second electrode being disposed to overlap a part of the first electrode in plan view in an outer region of the detection region of a third surface of the touch sensor substrate.

Touch panel and display device

A display device according to the present invention includes a touch panel, a dielectric sheet, a frame, and a display panel. The touch panel has a touch sensor portion in the middle and a first electrode in an inner peripheral portion. Further, the dielectric sheet is closely adhered the back surface of the touch panel in its front surface. The frame has an opening in the central portion thereof and a second electrode in a marginal portion that is closely adhered the back surface of the dielectric sheet. The display panel has a display surface to display a screen image and the display surface is closely adhered the back surface of the dielectric sheet in the opening of the frame. The first electrode and the second electrode constitute a pressure-sensitive sensor that has a function to detect a pressing force when an operation element touches the front surface of the touch panel. Thus, a highly reliable display device with a touch panel can be provided in which degradation in the visibility of the display panel can be avoided and the stress occurring in the pressure-sensitive sensor is reduced.

Display device

A touch panel according to the present invention includes a touch sensor substrate having a touch sensor portion in the central portion of the touch sensor substrate and having a first electrode and a second electrode in the inner peripheral portion of the touch sensor substrate, a protective plate to cover the front surface of the touch sensor substrate, a dielectric sheet provided between the touch sensor substrate and the protective plate, and a conductive member disposed at a position so as to face the first electrode and the second electrode, wherein the first electrode, the second electrode, and the conductive member constitute a pressure-sensitive sensor. With this structure, a touch panel having a pressure-sensitive sensor and a display device provided with the touch panel can be manufactured without an increase in the manufacturing time.

Touch panel and display device including a pressure-sensitive sensor

Tactile electrodes include a plurality of first electrodes and a plurality of second electrodes that are alternately arranged with an interval therebetween on a transparent insulating substrate. A dielectric layer covers the tactile electrodes. A voltage supply circuit applies a voltage signal having a first frequency to those of the first electrodes that are located on at least a partial region of the transparent insulating substrate, and applies a voltage signal having a second frequency different from the first frequency to those of the second electrodes that are located on at least the partial region of the transparent insulating substrate.

A plurality of excitation electrodes, each disposed along a row direction, are provided on a back side of a transparent substrate, and a plurality of detection electrodes, each disposed along a column direction, a plurality of tactile sensation generation row electrodes, each disposed along the row direction, and a plurality of tactile sensation generation column electrodes, each disposed along the column direction, are provided on the front side of the transparent substrate. The front side of the transparent substrate is defined as an operation screen. The excitation electrodes and the tactile sensation generation row electrodes are formed independently of each other, and the detection electrodes and the tactile sensation generation column electrodes are formed independently of each other. In the configuration, the excitation electrodes among the electrodes are situated furthest from the operation screen.

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Tokyo, Japan

Tae Orita