H03K17/98

KEYBOARD APPARATUS WITH CHANGEABLE KEY DISPLAYS

The disclosure provides a keyboard apparatus, which includes a printed circuit board (PCB), a keyboard module, and a display film. The PCB includes at least one lower pixel electrode disposed on the PCB. The keyboard module includes a transparent substrate, at least one upper pixel electrode, and multiple key mechanisms. The upper pixel electrode and the key mechanisms are disposed on the transparent substrate. The display film is disposed between the PCB and the keyboard module. The display film is adapted to be driven by the upper pixel electrode and the lower pixel electrode to display at least one image, where the image is suitable for presentation through any one of the key mechanisms. The display film includes a bistable display material or an electronic paper material. A first display substrate and a second display substrate of the display film are different from the PCB and the transparent substrate.

TOUCH BUTTON, CONTROL METHOD, AND ELECTRONIC DEVICE
20220321120 · 2022-10-06 · ·

A touch button, a control method, and an electronic device are provided. The touch button includes a first conductive part, a second conductive part, and a touch part, where the second conductive part surrounds the first conductive part to form a capacitance structure. The method includes receiving a touch input acting on the touch part; detecting whether the second conductive part has any capacitance change in a plurality of preset directions; and determining, in a case a capacitance change exists in a target direction among the plurality of preset directions, a control instruction corresponding to the target direction. According to the method, when the touch button receives the touch input, the touch part transfers pressure to the first conductive part, so that the first conductive part moves relative to the second conductive part resulting in a change of capacitance.

APPARATUS TO SECURE A SENSOR ASSEMBLY FOR A DEVICE TOUCH BUTTON
20170359063 · 2017-12-14 ·

An apparatus to secure a sensor assembly for a device touch button (such as for a mobile communications device). A touch sensor slot forms a part of the device case interior at a back-side of the touch button surface, and is configured to position the touch sensor (such as a sense coil inductor) relative to the associated touch button. A touch sensor spring clip is inserted within the touch sensor slot to flexibly urge the touch sensor toward the front-side surface of the touch sensor slot (back-side of the touch button surface). The touch sensor can include front-side spacers to maintain a sensing gap between the touch sensor and the touch button surface, and can include a sensor stiffener at the back-side surface of the touch sensor assembly, the touch sensor spring clip contacting the sensor stiffener. The touch sensor assembly can comprise a flex circuit PCB assembly.

INPUT APPARATUS, KEYBOARD, AND ELECTRONIC APPARATUS

An input apparatus includes a conductive layer having flexibility, a capacitance-type sensor layer having a plurality of detection units, and a structure layer having a plurality of structures, a reaction force of which is non-linearly changed with respect to a pressing amount. The structure layer is disposed between the conductive layer and the sensor layer. The two or more structures are disposed in an operation area corresponding to the detection units.

CAPACITIVE KEYBOARD
20170346488 · 2017-11-30 · ·

A capacitive keyboard that can detect a key that has been depressed and the depressed amount thereof with high accuracy is provided. The capacitive keyboard includes a drive circuit 11 that alternatively switches the voltage of each of drive lines M from an L-level to an H-level, a sensing circuit 12 that is connected to each of sensing lines N and that selects one of the sensing lines N to detect the voltage generated in the selected sensing line, and a control circuit 15. The control circuit 15 includes a storage unit 44 including storage areas corresponding to keys, a storage control unit 42 that acquires the voltage generated in the sensing line and that stores the acquired voltage in a storage area corresponding to a key, and a correction unit 43 that corrects, if one of the keys is operated, the voltage generated as a result of an operation of the one of the keys by using voltages stored in storage areas corresponding to other keys. Thus, even if a plurality of keys are depressed at the same time, detection with high accuracy can be realized.

CAPACITIVE KEYBOARD
20170346488 · 2017-11-30 · ·

A capacitive keyboard that can detect a key that has been depressed and the depressed amount thereof with high accuracy is provided. The capacitive keyboard includes a drive circuit 11 that alternatively switches the voltage of each of drive lines M from an L-level to an H-level, a sensing circuit 12 that is connected to each of sensing lines N and that selects one of the sensing lines N to detect the voltage generated in the selected sensing line, and a control circuit 15. The control circuit 15 includes a storage unit 44 including storage areas corresponding to keys, a storage control unit 42 that acquires the voltage generated in the sensing line and that stores the acquired voltage in a storage area corresponding to a key, and a correction unit 43 that corrects, if one of the keys is operated, the voltage generated as a result of an operation of the one of the keys by using voltages stored in storage areas corresponding to other keys. Thus, even if a plurality of keys are depressed at the same time, detection with high accuracy can be realized.

ELECTRONIC SWITCH WITH FORCE FEEDBACK FUNCTION
20170302275 · 2017-10-19 ·

An electronic switch with force feedback function includes a base, an actuating component and a. The actuating component is movably connected to the base, and includes a. The magnetic field generating module is disposed on the base, and provides a magnetic repulsive force to the magnetic unit for force feedback while the actuating component moves close to the base.

ELECTRONIC SWITCH WITH FORCE FEEDBACK FUNCTION
20170302275 · 2017-10-19 ·

An electronic switch with force feedback function includes a base, an actuating component and a. The actuating component is movably connected to the base, and includes a. The magnetic field generating module is disposed on the base, and provides a magnetic repulsive force to the magnetic unit for force feedback while the actuating component moves close to the base.

Keyboard with position sensing mechanism

An input device configured to communicate with a computing device includes at least one keycap, a support mechanism operably connected to the keycap and configured to move the keycap from a first position to a second position, a feature plate operably connected to the support mechanism, and a sensing member. The sensing member is configured to detect at least one of a change of position of the at least one keycap, a speed of the at least one keycap, an amount of force applied to the at least one keycap, or a location of a finger. The sensing member may be a capacitive sensor. In some embodiments, the input device may not include the support mechanism and the sensing member may be configured to detect the location of a finger regardless whether or not the keycap moves.

Keyboard with position sensing mechanism

An input device configured to communicate with a computing device includes at least one keycap, a support mechanism operably connected to the keycap and configured to move the keycap from a first position to a second position, a feature plate operably connected to the support mechanism, and a sensing member. The sensing member is configured to detect at least one of a change of position of the at least one keycap, a speed of the at least one keycap, an amount of force applied to the at least one keycap, or a location of a finger. The sensing member may be a capacitive sensor. In some embodiments, the input device may not include the support mechanism and the sensing member may be configured to detect the location of a finger regardless whether or not the keycap moves.