Abstract:
A touch detecting method, a touch detecting assembly, a touch sensitive device and a portable electronic apparatus are provided. The touch sensitive device comprises: a substrate (100); a plurality of induction units (200) not intersecting with each other, each induction unit (200) comprising a first electrode (210) and a second electrode (220); and a control chip (300) connected with the first electrodes (210) and the second electrodes (220) respectively. The control chip (300) is configured to applying a level signal to the first electrodes (210) and/or the second electrodes (220) to charge a self capacitor, to calculate a ratio between a first resistor and a second resistor when the touch is detected on the induction unit (200), and to determine a touch position according to the ratio between the first resistor and the second resistor.
Abstract:
A method and an apparatus for positioning a touch point on a touch screen are provided. The method includes: detecting simultaneously a self-capacitance and a mutual capacitance of a sensor in the touch screen to obtain a self-capacitance positioning result and a mutual capacitance detecting result respectively; obtaining a mutual capacitance positioning result according to the mutual capacitance detecting result; determining a location of the touch point according to the self-capacitance positioning result and the mutual capacitance positioning result.
Abstract:
A method and an apparatus for detecting a touch on a capacitive touch screen are provided. The method includes: detecting a self-capacitance and a mutual capacitance of the capacitive touch screen in real-time, in which the self-capacitance and the mutual capacitance are detected in a time-sharing mode; determining whether a current self-capacitance changes with respect to a previous self-capacitance and whether a current mutual capacitance changes with respect to a previous mutual capacitance; determining that the capacitive touch screen is touched by a finger when the current self-capacitance changes with respect to the previous self-capacitance and the current mutual capacitance changes with respect to the previous mutual capacitance; determining that the capacitive touch screen is not touched by the finger when the current self-capacitance does not change with respect to the previous self-capacitance.
Abstract:
A touch detecting assembly, a touch sensitive device and a portable electronic apparatus are provided. The touch sensitive device comprises a touch detecting assembly (300) and a control chip (400). The touch detecting assembly (300) comprises a substrate (100); and a plurality of induction units (200) disposed on the substrate (100) and not intersecting with each other. Each induction unit (200) comprises: a first part (230); and a second part (240) and a third part (250) not intersecting with each other. One end of the second part (240) is connected with one end of the first part (230), one end of the third part (250) is connected with the other end of the first part (230), the other end of the second part (240) comprises a first electrode (210), and the other end of the third part (250) comprises a second electrode (220).
Abstract:
A touch detecting assembly, a touch sensitive device, and a portable electronic apparatus are provided. The touch detecting assembly (100) comprises: a substrate (1); and a plurality of induction units (2) disposed on the substrate (1) and not intersecting with each other, each induction unit (2) comprising an induction body (20), and a first electrode (21) and a second electrode (22) connected with the induction body (20) respectively. Each induction body (20) has a rectangular shape with a plurality of empty parts (24), the plurality of empty parts (24) are arranged in a predetermined pattern to define a current passage (25) which extends between a first end and a second end of the induction body (20), and a cross-sectional area of the current passage (25) in a plane orthogonal to an extending direction of the current passage (25) is smaller than that of the induction body (25) in the plane.
Abstract:
A touch detecting assembly, a touch sensitive device, and a portable electronic apparatus are provided. The touch detecting assembly (100) comprises: a substrate (1); and a plurality of induction units (2) disposed on the substrate (1) and not intersecting with each other, each induction unit (2) comprising an induction body (20), and a first electrode (21) and a second electrode (22) connected with the induction body (20) respectively. Each induction body (20) has a rectangular shape with a plurality of empty parts (24), and the plurality of empty parts (24) are arranged in a predetermined pattern to define a current passage (25) which extends between a first end and a second end of the induction body (20) in a curve, so that a length of the current passage (25) in an extending direction of the current passage (25) is larger than a length of the induction body (20).
Abstract:
A touch detecting method, a touch sensitive device, and a portable electronic apparatus are provided. The touch detecting method comprises: applying a high level signal to one of a first electrode and a second electrode of one induction unit, and grounding the other to charge a self capacitor for a first time; applying high level signals to the first electrode and the second electrode to charge the self capacitor for a second time; detecting from a corresponding first electrode or a corresponding second electrode of the one induction unit to obtain a first detecting variation; grounding the first electrode and the second electrode; detecting from the corresponding first electrode or the corresponding second electrode to obtain a second detecting variation; calculating a ratio between a first resistor and a second resistor; and determining a touch position according to the ratio between the first resistor and the second resistor.
Abstract:
A touch detecting method, a touch sensitive device, and a portable electronic apparatus are provided. The touch detecting method comprises: applying high level signals to the first electrode and/or the second electrode of one induction unit to charge a self capacitor generated by a touch on the one induction unit; grounding the first electrode and the second electrode of the one induction unit respectively; detecting from the first electrode and the second electrode of the one induction unit to obtain a first detecting value and a second detecting value respectively; calculating a ratio between a first resistor between the self capacitor and the first electrode and a second resistor between the self capacitor and the second electrode according to the first detecting value and the second detecting value; and determining a touch position according to the ratio between the first resistor and the second resistor.
Abstract:
A touch detecting assembly, a touch sensitive device and a portable electronic apparatus are provided. The touch sensitive device comprises a touch detecting assembly (300) and a control chip (400). The touch detecting assembly (300) comprises a substrate (100); and a plurality of induction units (200) disposed on the substrate (100) and not intersecting with each other. Each induction unit (200) comprises: a first part (230), in which one end of the first part (230) comprises a first electrode (210); and a second part (240), in which one end of the second part (240) is connected with the other end of the first part (230), and the other end of the second part (240) comprises a second electrode (220). The first electrodes (210) and the second electrodes (220) of the plurality of induction units (200) are connected with corresponding pins of the control chip (400).
Abstract:
An induction unit, a touch detecting assembly, and a touch sensitive device are provided. The touch sensitive device comprises: a substrate (100); a plurality of induction units (200) not intersecting with each other, and a detecting module (300) connected with the first electrodes (210) and the second electrodes (220) respectively. The induction unit (200) comprises a first electrode (210), a second electrode (220), a plurality of first structures (230) and a plurality of second structures (240). The plurality of first structures (230) are connected end to end via the plurality of second structures (240). The detecting module (300) is configured to apply a level signal to the first electrodes (210) and/or the second electrodes (220) to charge a self capacitor, to calculate a ratio between a first resistor and a second resistor, and to determine a touch position in a first direction and a touch position in a second direction.