Primax Electronics Ltd.

Synaptics Corporation

Chao-Wei Lee

Wei-Chiang Huang

Hsueh-Chao Chang

Sian-Yi Chiu

Chieh-Hung Hsieh

Hung-Wei Kuo

Lin-Hsiang Hsieh

Ying-Yen Huang

Tzeng-Fu Kao

Chen-Yu Wu

A method for calibrating sensed force of a touch pad module is provided. The touch pad module includes a touch pad and force sensing elements disposed therebeneath. The method includes: obtaining a force reference table obtained before the touch pad module is assembled with an electronic device, the force reference table including a first data, which includes a first point of the touch pad and first force reference values corresponding to the first point and respectively corresponding to the force sensing elements; placing a calibration block on the first point after the touch pad module is assembled with the electronic device, so the force sensing elements respectively obtain first force test values corresponding to the first point; calculating first compensation ratios according to the first force reference values and the first force test values; and inputting the first compensation ratios into the force reference table.

Method for calibrating sensed force of touch pad module

A force touch judgement method is applied to a force touch pad with two force sensors. Firstly, a force touch operation corresponding to a real force value is performed on a force touch position. Then, a first sensing signal value and a second sensing signal value corresponding to the force touch operation are respectively generated by the two force sensors. Then, the first sensing signal value and the second sensing signal value are added as a total sensing signal value. A calibration force value corresponding to the force touch position is obtained. A first calibration signal value and a second calibration signal value corresponding to the force touch position are added as a total calibration signal value. A ratio of the total sensing signal value to the total calibration signal value is equal to a ratio of the real force value to the calibration force value.

Force touch judgment method

A touchpad module includes a touch member, a touch sensitive circuit board and an additional solder resist layer. The touch sensitive circuit board is located under the touch member. The touch sensitive circuit board includes a substrate, a sensing wire layer and a solder resist layer. The sensing wire layer is installed on the substrate. The sensing wire layer and a portion of the substrate are covered by the solder resist layer. At least one exhaust channel is formed in the solder resist layer. The additional solder resist layer is arranged between the touch member and the touch sensitive circuit board. At least one additional exhaust channel is formed in the additional solder resist layer and arranged between the touch member and the touch sensitive circuit board. The at least one additional exhaust channel is in communication with the at least one exhaust channel.

Touchpad module

A touchpad module for a computing device is provided. A fixing frame is concavely formed in a casing of the computing device. The fixing frame includes a supporting part. The touchpad module is installed within the fixing frame. The touchpad module includes a touch member and a pressure sensing element. The touch member includes a covering plate and a circuit board. An edge part of covering plate is supported on the supporting part. The pressure sensing element is installed on the touch member and electrically connected with the circuit board. While the touch member is pressed, the touch member is bent downwardly. Consequently, the touch member has a deformation amount. According to the deformation amount, a magnitude of a pressing force exerted on the touch member is sensed, and a pressure sensing signal is generated.

Touchpad module and computing device using same

A touchpad module for a computing device is provided. The touchpad module is installed within a fixing frame of the computing device. The touchpad module includes a base plate, a touch member, a conductive supporting structure, a first adhesive layer, a second adhesive layer and a conducting element. The touch member is located over the base plate. The conductive supporting structure is arranged between the base plate and the touch member. The conducting element is connected between the base plate and the fixing frame of the computing device. An electrostatic discharge path is defined by the touch member, the conductive supporting structure, the base plate, the conducting element and the fixing frame of the computing device collaboratively. In addition, static electricity generated on the touch member is guided out of the touchpad module through the electrostatic discharge path.

A touchpad module includes a base plate, a touch member and at least one pressure sensing module. The touch member is located over the base plate. The touch member includes a touch plate and a touch sensitive circuit board. The pressure sensing module is arranged between the base plate and the touch member. The pressure sensing module includes a pressure sensor and a miniature supporting plate. The pressure sensor is installed on the miniature supporting plate. The pressure sensor is electrically connected with the touch sensitive circuit board through the miniature supporting plate. While the touch member is pressed in response to an external pressing force, the pressing force exerted on the touch member is sensed by the at least one pressure sensing module, and the pressure sensing module generates a pressure sensing signal.

A touch device includes a touch panel, a circuit board, a vibrating unit and a pressure detection module. The touch panel includes two press regions. When different press regions of the touch panel are pressed by the user, the vibration feedback values generated by different press regions are different.

Touch device with pressure sensing and vibration feedback

A touchpad module includes a base plate, a touch member, a supporting structure and a pressure sensing unit. The touch member is movable toward the base plate. The supporting structure is arranged between the base plate and the touch member. The pressure sensing unit is installed on the touch member. The pressure sensing unit is arranged between the touch member and the base plate. While the touch member is pressed in response to an external pressing force, the touch member is moved downwardly toward the base plate to compress the supporting structure. Consequently, the supporting structure is subjected to deformation, and the touch member has a displacement amount. According to the displacement amount, a magnitude of the pressing force is sensed by the pressure sensing unit, and a pressure sensing signal is outputted from the pressure sensing unit.

Touchpad module and computing device using the touchpad module

A touchpad module includes a base plate, a touch member, plural supporting elements, plural pressure sensing units and a feedback generation element. The base plate includes a plate body and plural elastic arms. The plural elastic arms are formed on the plate body. The plural supporting elements are arranged between the base plate and the touch member, and aligned with the corresponding elastic arms. While the touch member is moved toward the base plate, the plural supporting elements are move downwardly with the touch member to press the corresponding elastic arms. Consequently, the plural elastic arms are subjected to deformation. If the deformation amount of at least one of the plural elastic arms reaches a threshold value, the corresponding pressure sensing unit issues a pressure sensing signal. The feedback generation element generates a haptics feedback effect in response to the pressure sensing signal.

A touchpad module includes a touch member, a base plate, a supporting element and a switch. The touch member includes a first touch region and a second touch region. The base plate is located under the touch member. The supporting element is arranged between the touch member and the base plate. The supporting element is aligned with the second touch region. The switch is arranged between the touch member and the base plate. The switch is aligned with the second touch region. When a pressing force is applied to the second touch region of the touch member, the pressing force is transmitted to the base plate through the supporting element. Consequently, the base plate is subjected to deformation. The switch is triggered in response to the deformation of the base plate.

Touchpad module that can be triggered by pressing down in all regions and computing device using the touchpad module

A touchpad module includes a touch member, a first base plate, a second base plate and two elastic elements. The first base plate includes a first stopping part and a second stopping part. The second base plate is arranged between the touch member and the first base plate. The second base plate include a third stopping part and a fourth stopping part. The third stopping part is engaged with the first stopping part. The fourth stopping part is engaged with the second stopping part. The two elastic elements are arranged between the first base plate and the second base plate. When an external force is exerted on the touch member, the touch member is swung toward the first base plate by using a junction between the second stopping part and the fourth stopping part as a fulcrum.

A touchpad module includes a base plate, a touch member, a switch, an elastic element, a first supporting element and a second supporting element. The base plate includes a triggering part. The touch member is located over the base plate. The switch is disposed on the touch member and aligned with the triggering part. The elastic element is located under the base plate. The elastic element includes a fixed part, a first swingable part and a second swingable part. The fixed part is fixed on the base plate. The first swingable part includes a first contact structure. The second swingable part includes a second contact structure. When an external force is exerted on the touch member, the touch member is swung toward the base plate relative to the first supporting element, and the second swingable part is swung away from the base plate.

In an example, an isometric input device configured to control a user interface indicator of an electronic device includes a plurality of sensor electrodes, a control member, a conductive support substrate, and a compliant member. The plurality of sensor electrodes is disposed on a sensor substrate. The control member is mechanically coupled to the sensor substrate over at least a portion of the plurality of sensor electrodes. The compliant member is disposed between the sensor substrate and the conductive support substrate. The compliant member defines a gap between the sensor substrate and the conductive support substrate.

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Taipei, Taiwan

Chao-Wei Lee