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Active capacitance pen, capacitance touch panel and touch device

A capacitive touch panel and capacitive pen technology, which is applied to the input/output process of electrical digital data processing, instruments, and data processing, etc., can solve the problem that the capacitive touch screen cannot determine the touch position, cannot achieve the effect of writing pictures, and can write smoothly. It can improve the stability and anti-interference, increase the electric field, and achieve the effect of good support.

Active Publication Date: 2013-12-11
HANVON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, if a capacitive touch screen is operated with a thin pen tip made of conductive material, although the pen tip will also absorb part of the current from the contact point, because the pen tip is very thin, the absorption current has little effect on the receiving electrode and is difficult to detect, making the capacitive touch screen impossible. determine touch position
In order to have a greater impact on the receiving electrode, the tip of the capacitive pen must be very thick in addition to its conductive properties, which makes the pen have problems such as poor writing fluency, difficulty in precise clicking, and no pressure-sensitive characteristics, so it cannot achieve the purpose of writing and drawing. Effect

Method used

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  • Active capacitance pen, capacitance touch panel and touch device
  • Active capacitance pen, capacitance touch panel and touch device

Examples

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example 1

[0070] Example 1. In this example, the second sending unit 2 (sending coil) of the capacitive pen 100 only sends command signals, but does not send synchronization signals. The specific coordination process of the capacitive stylus 100 and the capacitive touch panel 200 is as follows.

[0071] The working process of the capacitive pen 100:

[0072] Since the capacitive stylus 100 has no device for receiving commands, the capacitive stylus 100 does not know whether it is close to the capacitive touch panel 200 . The capacitive pen 100 works cyclically according to a fixed workflow. The first sending unit 1 (pen tip) of the capacitive pen 100 sends a high-voltage signal, and the second sending unit 2 (sending coil) sends a command signal. The working process includes the following steps:

[0073] Step a: The sending coil in the pen sends command A, which means that the pen tip will send n in-phase pulses later, and then the pen tip will send n in-phase pulses;

[0074] Step b:...

example 2

[0092] Example 2. In this example, the second sending unit 2 (sending coil) of the capacitive pen 100 sends command signals and synchronization signals. The specific coordination process of the capacitive pen 100 and the capacitive touch panel 200 is as follows.

[0093] The working process of the capacitive pen 100 is:

[0094] Since the capacitive stylus 100 has no device for receiving commands, the capacitive stylus 100 does not know whether it is close to the capacitive touch panel 200 . The capacitive pen 100 works cyclically according to a fixed workflow. The first sending unit 1 (pen tip) of the capacitive pen 100 sends high-voltage signals, and the second sending unit 2 (sending coil) sends command signals and synchronization signals. The working process includes the following steps:

[0095] Step a: The sending coil in the capacitive pen 100 sends command A, which means that the pen tip will send n in-phase pulses later, and then the sending coil in the pen sends n sy...

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Abstract

The invention provides an active capacitance pen which is used for operation on a capacitance touch panel (200). The active capacitance pen comprises a first sending unit (1), a second sending unit (2) and a control processing unit (5). The first sending unit (1) sends high-voltage signals to the capacitance touch panel (200). The second sending unit (2) sends order signals to the capacitance touch panel (200) and informs the capacitance touch panel (200) of the fact that the first sending unit (1) sends the high-voltage signals to the capacitance touch panel (200), so that the capacitance touch panel (200) generates measuring signals which are synchronous with the high-voltage signals. The control processing unit (5) generates the high-voltage signals and the order signals and sends the high-voltage signals and the order signals to the capacitance touch panel (200) respectively through the first sending unit (1) and the second sending unit (2), so that the capacitance touch panel (200) obtains the position information of the capacitance pen (100). According to the capacitance pen, the intensity of the signals received by the capacitance touch panel can be improved, locating accuracy is improved, mutual harmony between the capacitance pen and the capacitance touch panel can be improved, and the capacitance pen and the capacitance touch panel conduct timely response.

Description

technical field [0001] The invention relates to touch technology, in particular to an active capacitive pen, a capacitive touch panel and a touch device. Background technique [0002] At present, because the capacitive touch screen is easy to operate and has high sensitivity, it has become the first choice for touch devices at this stage. Capacitive touch screens used in capacitive touch screens are generally made of transparent conductive ITO (indium tin oxide) films in glass or other transparent materials to form a criss-cross structure of conductive films, which can be used as sending electrodes and receiving electrodes. When a finger taps the screen, it will form a coupling capacitance with both the sending electrode and the receiving electrode, and absorb part of the current from the contact point, thereby causing the signal of the receiving electrode to change. That is, when the conductor touches the capacitive touch screen, the touch position of the conductor on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0354G06F3/041
Inventor 郑洋
Owner HANVON CORP
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