Passive capacitive pen

Abstract

The invention discloses a passive capacitive pen. The non-conductive pen comprises a conductive pen point, a non-conductive pen body and a circuit assembly arranged in the non-conductive pen body, thecircuit assembly comprises a first copper sheet, an energy storage capacitor, a second copper sheet, a spring and a circuit board. The first copper sheet, the energy storage capacitor, the second copper sheet and the spring are arranged on the circuit board, wherein one end of the energy storage capacitor is connected with the first copper sheet, the other end of the energy storage capacitor is connected with the second copper sheet, the first copper sheet is connected with the conductive pen point through the spring, the second copper sheet is located in the hand holding part of the non-conductive pen body, and the size of the second copper sheet is matched with that of the hand holding part. Under the condition that the pen body is made of a non-conductive material, a circuit is additionally arranged in the pen body, passive conduction is achieved, mistaken touch on a touch screen can be effectively avoided, meanwhile, the structure is simple, the production cost is low, the touch writing experience is extremely good, and the writing experience and the application range are greatly improved.

Description

technical field [0001] The invention relates to a capacitor pen, in particular to a passive capacitor pen. Background technique [0002] Capacitive pens currently on the market are divided into active capacitive pens and passive capacitive pens. The active capacitive pen uses the power input electromagnetic signal to simulate the touch point to realize touch writing, because of the addition of chips, circuits, power supplies and other logistics, the cost is high; the passive capacitive pen uses the conductivity of the material of the pen body to realize touch writing, and the cost is low. However, when the pen body is conductive, it is limited by the material, and in the case of a part of the capacitive screen setting with a low recognition height, it will cause false touches on the touch screen, and it does not have the characteristics of imitation interference. Contents of the invention [0003] In order to overcome the deficiencies of the existing technology, the prese...

AI Technical Summary

Problems solved by technology

The active capacitive pen uses the power input electromagnetic signal to simulate the touch point to realize touch writing, because of the addition of chips, circuits, power supplies and other logistics, the cost is high; the passive capacitive pen uses the conductivity of the material of the pen body to realize touch writing, and the cost is low. However, when the pen body is conductive, it is limited by the material, and in the case of a part of the capacitive screen setting with a low recognition height, it will cause false touches on the touch screen, and it does not have the characteristics of imitating interference.

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