Darfon Electronics Corporation

Li-Te Chang

Chen Yang

Yu-Chun Hsieh

Po-Yueh Chou

Chih-Hung Chen

Yen-Ting Chen

Yung-Chih Wang

Chia-Hung Liu

Chih-Chung Yen

Ching-Yu Wang

An optical keyswitch includes a keycap, a support mechanism, and a switch module. The support mechanism is disposed below the keycap and configured to support the keycap moving upward and downward, the support mechanism comprising a first frame and a second frame, the first frame having a sliding end. The switch module includes a circuit board, an emitter, and a receiver, the emitter and the receiver are electrically connected to the circuit board, and the emitter emitting an optical signal to the receiver. When the keycap is pressed, the first frame is driven by the keycap to slide substantially parallel to the circuit board and block the optical signal with the sliding end, so the switch module is triggered to generate a triggering signal.

Optical keyswitch with sliding end

Optical switch comprising a movable member to rotate in response to movement of a support mechanism to change the intensity of received optical signal

Optical keyswitch comprising a keycap having a light transmission area and a keycap projection area projected on a circuit board

A keyswitch assembly includes a switch module, a support mechanism, a blocking mechanism, an enhancing light source, and a backlight source. The switch module includes a substrate, a signal generator, and a signal sensor. The signal generator generates a sensing signal. The signal sensor receives the sensing signal to obtain a sensing strength. The support mechanism is disposed on the substrate. The blocking mechanism is disposed on the substrate and has a light-permeable portion. A portion of the blocking mechanism inserts into or escapes from a gap between the signal generator and the signal sensor. The backlight source is disposed on the substrate and located outside the vertical projection of the blocking mechanism on the substrate. The enhancing light source is disposed on the substrate and located within the vertical projection of the blocking mechanism on the substrate and corresponds to the light-permeable portion.

Keyswitch assembly

A keyswitch assembly includes a switch module, a support mechanism, and a blocking mechanism. The switch module includes a substrate, a signal generator, and a signal sensor. The signal generator provides a sensing signal. The signal sensor receives the sensing signal to obtain a sensing intensity. The support mechanism is disposed on the substrate. A top portion of the support mechanism moves in response to a pressing force. The blocking mechanism includes a pivoting portion rotatably disposed on the substrate, a connecting piece extending from the pivoting portion and movably connected to the support mechanism to be driven by the top portion to swivel relative to the substrate, and a blocking piece extending from the pivoting portion and driven by the connecting piece to be inserted into or escape from the gap between the signal generator and the signal sensor to change the magnitude of the sensing intensity.

Keyswitch assembly and support mechanism thereof

An optical keyswitch includes a keycap, a supporting mechanism having a protrusion disposed under the keycap to support the keycap to move downward or upward, and a switch module including a circuit board, an emitter, and a receiver. The emitter and the receiver are electrically connected to the circuit board. The emitter emits an optical signal to the receiver. When the keycap is not pressed, the receiver receives the optical signal of a first intensity. When the keycap is pressed, the protrusion moves along with the keycap, and the protrusion changes the optical signal received by the receiver to have a second intensity different from the first intensity, so the switch module is triggered to generate a triggering signal.

Optical keyswitch triggered by support mechanism having at least one rotatable frame enable a protrusion to move along with a key cap

A keyswitch structure includes a keycap, a base plate, a first support, and a second support. The first support and the second support are pivotally connected with each other and are connected to and between the keycap and the base plate. The first support includes a shaft socket, a shaft portion, and a protruding interference portion which are adjacently arranged. Correspondingly, the second support includes a shaft portion, a shaft socket, and a recess interference portion which are adjacently arranged. The recess interference portion has a relief space and a block beside the relief space. The first support and the second support are pivotally connected by engaging the shaft sockets with the corresponding shaft portions; therein, the protruding interference portion is located in the relief space, and the block obstructs the protruding interference portion moving out of the relief space.

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Taoyuan, Taiwan

Li-Te Chang