Touch-sensitive control device

A touch-sensitive control device, comprising:

• a cover;
• a control chip;
• a circuit board disposed at a side of the cover, having a first surface disposed opposite to the cover, and having a second surface facing the cover;
• a first electrode disposed on the first surface of the circuit board and electrically connected to a control chip;
• a socket having a conductor;
• and
• a spacer disposed between the socket and the first surface of the circuit board, and deformable to change a distance between the first electrode and the conductor,
• wherein the control chip generates a first control signal in response to a capacitance change between the first electrode and the conductor of the socket in a first period of time, and the capacitance change correlates to a distance change between the first electrode and the conductor in response to a pressing operation on the cover.

A touch-sensitive control device, controlled by a control chip to conduct press sensing and/or touch sensing, comprising:

• a cover;
• a flexible circuit board disposed at a side of the cover and folded to define an upper portion and a lower portion;
• a first electrode disposed at an inner surface of the lower portion facing the upper portion, and electrically connected to the control chip;
• a second electrode disposed at an inner surface of the upper portion facing the lower portion, and electrically connected to the control chip;
• and
• a spacer disposed between the first portion and the second portion of the flexible circuit board for creating a variable gap between the first electrode and the second electrode,
• wherein a distance between the first electrode and the second electrode changes in response to a pressing operation, and a capacitance change between the first electrode and the second electrode correlates to the distance change.

A touch-sensitive control device, comprising:

• a cover;
• a control chip;
• a flexible circuit board disposed at a side of the cover and folded to define an upper portion and a lower portion;
• a first electrode disposed at an outer surface of the lower portion opposite to the upper portion, and electrically connected to the control chip;
• a second electrode disposed at an outer surface of the upper portion opposite to the lower portion, and electrically connected to the control chip;
• and
• a spacer disposed between the first portion and the second portion of the flexible circuit board for creating a variable gap between the first portion and the second portion,
• wherein the control chip generates a first control signal in response to a capacitance change between the first electrode and the second electrode in a first period of time, and the capacitance change correlates to a distance change between the first electrode and the second electrode in response to a pressing operation on the cover.