Mitsubishi Electric Corporation

Yusuke Shimasaki

Seiichiro Mori

Takeshi Ono

Tae Orita

Kageyasu Miyahara

Yuichi Sasaki

Yuichi Okano

Masaya Nidaira

Tatsuya Nakamura

Takafumi Hashiguchi

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

The touch panel built-in display includes a first electrode, a second electrode, and a third electrode for detecting the pressed state in which the protective plate is pressed. The first electrode is provided in the peripheral region on the back surface of the protective plate. The second and third electrodes are provided adjacent to each other in the peripheral region on the principal surface of the sensor substrate. That is, the first electrode, the second electrode, and the third electrode are provided in the peripheral region as a configuration for detecting the pressed state.

Touch panel built-in display with detection of pressed state in the peripheral region

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 touch panel apparatus includes: a data determination part determining whether a measurement value of a capacitance for each of a plurality of drive pulses measured by a sensing part is normal or abnormal; and a coordinate detection part outputting a touch coordinate position of a touch performed by an indication body in accordance with the measurement value of the capacitance which is determined to be normal by the data determination part, wherein the drive part changes a frequency of a drive pulse in the plurality of drive pulses corresponding to the measurement value of the capacitance which is determined to be abnormal by the data determination part, and outputs, in a subsequent scan, a plurality of drive pulses including a drive pulse whose frequency has been changed.

Touch panel apparatus

A display includes a touch sensor panel, a panel controller, a case, and a signal generation circuit. The touch sensor panel includes a touch sensor. The panel controller measures a capacitance of the touch sensor. The case accommodates the display, in which at least the touch sensor panel and the panel controller are disposed. The signal generation circuit is capable of applying an AC signal to a ground of the panel controller. The case is electrically connected to the ground of the panel controller. When the signal generation circuit applies the AD signal to the ground, the panel controller measures the capacitance of the touch sensor.

Display with case electrically connected to ground

In a touch panel device, an output control unit controls a process of outputting touch information acquired by a sensing unit and a touch detection unit of a touch sensor panel to host equipment, where the information indicates presence or absence and a coordinate of a touch of an indicator to the touch sensor panel. A state sensing unit senses an operation state of the sensing unit or the touch detection unit. A state restoration unit restores the sensing unit or the touch detection unit in the abnormal state to a normal state, based on a detection result of the state sensing unit. Upon detecting an abnormal state in the state sensing unit, an output control unit stops an output of the touch information to the host equipment for a fixed period of time.

Growing community of inventors

Tokyo, Japan

Yusuke Shimasaki