Darfon Electronics Corporation

Darfon Electronics (suzhou) Co., Ltd.

Rui-Ming Liao

Chia-Hung Liu

Chih-Chung Yen

Hung-Chieh Lo

Chih-Ho Hsu

An illuminated keyswitch includes a base, a keycap, a lift mechanism, and a light source. The keycap includes a cap body and a light guiding rod. The lift mechanism is connected to between the light guiding rod and the base, such that the keycap can vertically move relative to the base through the lift mechanism. The light source is disposed between the light guiding rod and the base and emits light toward the light guiding rod. The light enters the light guiding rod through an end portion of the light guiding rod and then emits out the light guiding rod from another end portion of the light guiding rod and a side surface adjacent to the another end portion toward the cap body. Thereby, the whole cap body can receives relatively uniform back light.

Illuminated keyswitch

A keyswitch uses a combination of springs connected in serial for providing a return force to a keycap of the keyswitch. When the keycap moves toward a base of the keyswitch beyond a transition position, one of the springs stops continuously deforming. It leads to an increment of the elastic coefficient of the combination of springs and an increment of the elastic stored energy by the combination of springs. Therefore, during a pressing on the keycap, the keycap can provide a light force feedback and then a heavy force feedback to a user. Further, the keyswitch can use a switch with a lateral motion, which can reduce influence of a resilient force produced by the switch on the up and down movement of the keycap. The keyswitch also can use an elastic piece disposed beside the keycap, which can provide a tactile feedback to the user.

Keyswitch

A keyswitch structure includes a keycap layer having a keycap region, a circuit layer disposed under the keycap layer, at least a haptic actuator disposed under the circuit layer and electrically connected to the circuit layer, a cushion layer disposed under the circuit layer and having an accommodation space for accommodating the haptic actuator, a sensing unit disposed under the cushion layer, and a control circuit coupling the sensing unit and the circuit layer, wherein when an external force is applied and delivered through the cushion layer to trigger the sensing unit, the sensing unit outputs a trigger signal, and the control circuit receives the trigger signal and outputs a driving signal to drive the haptic actuator to vibrate.

Haptic keyswitch structure and input device

A keyswitch structure includes a keycap layer having a keycap region and a peripheral region adjacent to the keycap region, a circuit layer disposed under the keycap layer, a haptic actuator electrically connected to the circuit layer, a supporting structure layer being disposed under the circuit layer and having an accommodation space for accommodating the haptic actuator, and an adhesive layer disposed between the keycap layer and the circuit layer corresponding to only the peripheral region.

Growing community of inventors

Taoyuan, Taiwan

Rui-Ming Liao