Terminal, Touch Control Unit, Touchscreen, Screen Protector, and Operation Detection Apparatus and Method

A touch control unit, applied to a terminal comprising a touchscreen and a controller, wherein the touch control unit comprises:

• a detection electrode, located outside a touch area of the touchscreen:
• an induction electrode, located in the touch area of the touchscreen;
• and
• a conducting wire connecting the detection electrode and the induction electrode,
• wherein the induction electrode is coupled to at least one capacitance node on the touchscreen such that the controller generates a touch event indicating a touch operation when detecting, according to a capacitance change parameter of the at least one capacitance node and a capacitance change parameter of a capacitance node adjacent to the at least one capacitance node, that the detection electrode receives the touch operation, and
• wherein a capacitance change parameter indicates a capacitance change value of a corresponding capacitance node during a period of time.

A touchscreen, comprising:

• at least one touch control unit,
• wherein, the at least one touch control unit comprises:
• a detection electrode located outside a touch area of the touchscreen
• an induction electrode located in the touch area of the touchscreen;
• and
• a conducting, wire connecting the detection electrode and the induction electrode,
• wherein the induction electrode is coupled to at least one capacitance node on the touchscreen such that the controller generates a touch event indicating a touch operation when detecting according to a capacitance change parameter of the at least one capacitance node and a capacitance change parameter of a capacitance node adjacent to the at least one capacitance node, that the detection electrode receives the touch operation, and
• wherein a capacitance change parameter indicates a capacitance change value of a corresponding capacitance node during a period of time.

A screen protector, comprising:

• at least one touch control unit and configured to cover an upper surface of a touchscreen,
• wherein the at least one touch control unit comprises:
• a detection electrode located outside a touch area of the touchscreen
• an induction electrode Located in the touch area of the touchscreen;
• and
• a conducting wire connecting the detection electrode and the induction electrode,
• wherein the induction electrode is coupled to at least one capacitance node on the touchscreen such that the controller generates a touch event indicating a touch operation when detecting, according to a capacitance change parameter of the at least one capacitance node and a capacitance change parameter of a capacitance node adjacent to the at least one capacitance node, that the detection electrode receives the touch operation, and
• wherein a capacitance change parameter indicates a capacitance change value of a corresponding capacitance node during a period of time.

An operation detection apparatus, applied to a terminal comprising a touchscreen, a controller connected to the touchscreen, and at least one touch control unit, wherein the touch control unit comprises a detection electrode, an induction electrode, and a conducting wire connecting the detection electrode and the induction electrode, wherein the detection electrode is located outside a touch area of the touchscreen, wherein the induction electrode is located in the touch area of the touchscreen, wherein the induction electrode is coupled to at least one capacitance node on the touchscreen, and wherein the apparatus comprises:

• a memory;
• and
• a processor coupled to the memory and configured to:
• obtain a capacitance change parameter of the at least one capacitance node and a capacitance change parameter of a capacitance node adjacent to the at least one capacitance node, wherein a capacitance change parameter indicates a capacitance change value of a corresponding capacitance node during a period of time;
• detect, according to the capacitance change parameter of the at least one capacitance node and the capacitance change parameter of the capacitance node adjacent to the at least one capacitance node, whether the detection electrode receives a touch operation;
• and
• generate a touch event indicating the touch operation when a detection result comprises that the detection electrode receives the touch operation.

An operation detection method, applied to a terminal comprising a touchscreen, a controller connected to the touchscreen, and at least one touch control unit, wherein the touch control unit comprises a detection electrode, an induction electrode, and a conducting wire connecting the detection electrode and the induction electrode, wherein the detection electrode is located outside a touch area of the touchscreen, wherein the induction electrode is located in the touch area of the touchscreen, wherein the induction electrode is coupled to at least one capacitance node on the touchscreen, and wherein the method comprises:

• acquiring, by the terminal, a capacitance change parameter of the at least one capacitance node and a capacitance change parameter of a capacitance node adjacent to the at least one capacitance node, wherein a capacitance change parameter indicates a capacitance change value of a corresponding capacitance node during a period of time;
• detecting, by the terminal according to the capacitance change parameter of the at least one capacitance node and the capacitance change parameter of the capacitance node adjacent to the at least one capacitance node, whether the detection electrode receives a touch operation;
• and
• generating, by the terminal when a detection result comprises that the detection electrode receives the touch operation, a touch event indicating the touch operation.