Tianma Japan, Ltd.

Tianma Micro-electronics Co., Ltd.

Wuhan Tianma Micro-electronics Co., Ltd

Nlt Technologies, Ltd.

Xiamen Tianma Micro-electronics Co., Ltd.

Takasago International Corporation

Daisuke Sugimoto

Hiroshi Haga

Jiro Yanase

Koji Shigemura

Takuya Asai

Harue Sasaki

Yiping Yang

Hideki Asada

Tetsushi Sato

Makoto Emura

Yoshihiro Yaguchi

Masaki Kumatani

A tactile presentation device comprising: a contact face; a plurality of electrodes arranged along the contact face; a first control unit controlling operations of the electrodes for detecting contact or approach of an object toward the 5 contact face; a second control unit controlling operations of the electrodes for presenting a tactile sense to the contact face; and a third control unit causing a part of the plurality of the electrodes to be controlled by the first control unit, sequentially changing the electrode to be controlled by 10 the first control unit to another electrode among the plurality of the electrodes, and causing electrodes other than the electrode that is controlled by the first control unit to be controlled by the second control unit.

Tactile presentation device and control method

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.

Tactile sense presentation device, electronic apparatus, and method of driving tactile sense presentation device

An electronic apparatus includes an electrode substrate that has a transparent first electrode and a transparent second electrode that are provided on one surface of a transparent insulating substrate, and an insulating film that electrically insulates the first electrode from the second electrode, the electrode substrate being configured so as to cover a surface of a display medium where an image is displayed; and a driver circuit that is connected to the electrode substrate and generates an electric field between the first electrode and the second electrode by applying a voltage to the first electrode and the second electrode.

Electronic apparatus with electrode substrate that generates ozone

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.

Electronic device with updating of the baseline of a force sensor used to detect user pressing a display screen

A tactile presentation device comprising: a contact face; a plurality of electrodes arranged along the contact face; a first control unit controlling operations of the electrodes for detecting contact or approach of an object toward the contact face; a second control unit controlling operations of the electrodes for presenting a tactile sense to the contact face; and a third control unit causing a part of the plurality of the electrodes to be controlled by the first control unit, sequentially changing the electrode to be controlled by the first control unit to another electrode among the plurality of the electrodes, and causing electrodes other than the electrode that is controlled by the first control unit to be controlled by the second control unit.

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.

Electronic device with force sensor and haptic feedback in direction perpendicular to a direction of press

A touch panel device includes a touch panel and a controller for the touch panel. The touch panel includes a support substrate, a plurality of X electrodes disposed on the support substrate, a plurality of Y electrodes disposed on the support substrate in such a manner that each of the plurality of Y electrodes intersects the plurality of X electrodes and is isolated from the plurality of X electrodes, and an insulating layer covering the plurality of X electrodes and the plurality of 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.

Touch panel and touch panel device

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.

Capacitance detection circuit and electrostatic capacitance sensor device with a high-pass filter having first and second passive circuit elements for outputting an attenuated current signal

Electronic device and control method with feedback to perceive presence and activation of an object

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.

A tactile presentation panel includes a support substrate, a drive electrode located on the support substrate, a first insulating film located on the support substrate and covering the drive electrode, a plurality of floating electrodes electrically independent from one another disposed on the first insulating film, and a second insulating film covering the plurality of floating electrodes.

Tactile presentation panel, tactile presentation device and electronic equipment

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.

Growing community of inventors

Kawasaki, Japan

Daisuke Sugimoto