公开(公告)号：US20220328265A1

公开(公告)日：2022-10-13

申请号：US17715120

申请日：2022-04-07

申请人： Darfon Electronics Corp.

发明人： Li-Te CHANG ,  Chih-Hung CHEN ,  Yen-Ting CHEN

IPC分类号： H01H13/14 ,  H01H13/20

摘要： 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.

公开(公告)号：US20210351773A1

公开(公告)日：2021-11-11

申请号：US17383678

申请日：2021-07-23

申请人： Darfon Electronics Corp.

发明人： Chen Yang ,  Yu-Chun HSIEH ,  Li-Te CHANG ,  Po-Yueh CHOU

IPC分类号： H03K17/968 ,  H01H13/14 ,  H01H13/705

摘要： 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.

公开(公告)号：US20230353149A1

公开(公告)日：2023-11-02

申请号：US18350787

申请日：2023-07-12

申请人： Darfon Electronics Corp.

发明人： Chen Yang ,  Yu-Chun HSIEH ,  Li-Te CHANG ,  Po-Yueh CHOU

IPC分类号： H03K17/968 ,  H01H13/705 ,  H01H13/14

CPC分类号： H03K17/968 ,  H01H13/705 ,  H01H13/14 ,  H03K2217/9653

摘要： 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.

公开(公告)号：US20220385288A1

公开(公告)日：2022-12-01

申请号：US17812785

申请日：2022-07-15

申请人： Darfon Electronics Corp.

发明人： Chen YANG ,  Yu-Chun HSIEH ,  Li-Te CHANG ,  Po-Yueh CHOU

IPC分类号： H03K17/968 ,  H01H13/705 ,  H01H13/14

摘要： 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.

公开(公告)号：US20220328266A1

公开(公告)日：2022-10-13

申请号：US17715143

申请日：2022-04-07

申请人： Darfon Electronics Corp.

发明人： Li-Te CHANG ,  Chih-Hung CHEN ,  Yen-Ting CHEN

IPC分类号： H01H13/14 ,  H01H13/20

摘要： 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.