Touch pen, driving method thereof and touch system
AssigneesHefei Boe Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.
InventorsChunhua Li, Meng Wang, Jie Ling, Xiangen Wang
Life of this patent
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Abstract
A touch pen, a driving method thereof, and a touch system are provided. The touch pen includes: a capacitance circuit having different capacitance values when the touch pen is at different tilt angles; a detection circuit configured to detect a capacitance value of the capacitance circuit and generate capacitance information corresponding to the capacitance value; and a signal generating circuit configured to generate a corresponding driving signal according to the capacitance information.
Claims20
A touch pen, comprising:
- a capacitor circuit, wherein the capacitor circuit has different capacitance values when the touch pen is at different tilt angles;
- a detection circuit, configured to detect a capacitance value of the capacitor circuit and generate capacitance information corresponding to the capacitance value;
- and
- a signal generating circuit, configured to generate a corresponding driving signal according to the capacitance information;
- wherein the touch pen further comprises a pen body;
- and
- wherein the capacitor circuit comprises:
- a first electrode, fixed to an inner wall of the pen body;
- a second electrode, arranged on a side of the first electrode away from a pen tip of the touch pen, movable in an axial direction of the pen body, and configured to form a first capacitor with the first electrode;
- an elastic member, provided between the first electrode and the second electrode;
- and
- a fluid, provided on a side of the second electrode away from the pen tip, and used to apply different forces to the second electrode when the touch pen is at different tilt angles to enable the elastic member to have different degrees of deformation.
A touch system, comprising a touch pen and a touch screen capable of being used with the touch pen;
- wherein the touch pen comprises:
- a capacitor circuit, wherein the capacitor circuit has different capacitance values when the touch pen is at different tilt angles;
- a detection circuit, configured to detect a capacitance value of the capacitor circuit and generate capacitance information corresponding to the capacitance value;
- and
- a signal generating circuit, configured to generate a corresponding driving signal according to the capacitance information;
- wherein the touch pen further comprises a pen body;
- and
- wherein the capacitor circuit comprises:
- a first electrode, fixed to an inner wall of the pen body;
- a second electrode, arranged on a side of the first electrode away from a pen tip of the touch pen, movable in an axial direction of the pen body, and configured to form a first capacitor with the first electrode;
- an elastic member, provided between the first electrode and the second electrode;
- and
- a fluid, provided on a side of the second electrode away from the pen tip, and used to apply different forces to the second electrode when the touch pen is at different tilt angles to enable the elastic member to have different degrees of deformation.
Dependencies are inferred from the claim text.