CN201247453Y - Touch control pen - Google Patents

Abstract

The utility model relates to a touch-control pen, a touch panel for capacitanc, it includes that an inside is cavity and forms the body of a pen of accommodation space and one sets up in this accommodation space and the coil that forms the electric current return circuit, and this body one end be equipped with one with this coil electric connection's conductive element, this conductive element is used for contacting this touch panel, make this coil produce an induction electric field by the electric current return circuit, make this touch panel distinguish the position that this touch-control pen points through this induction electric field, improve traditional touch-control pen by this and need come the conduction current and be difficult for distinguishing the disappearance of touch-control pen contact point position or mistake, promote the degree of accuracy that touch panel discerned touch-control pen contact point position by this.

Description

Stylus

technical field

The utility model relates to a touch pen, in particular to a touch pen suitable for a capacitive touch panel.

Background technique

In recent years, touch panels have become an important input device, and are widely used in various electronic devices with display screens, such as mobile phones, PDAs, GPS, etc., and the current mainstream touch panels can be roughly divided into Resistive touch panel and capacitive touch panel. Among them, the resistive touch panel uses voltage drop to find the coordinate axis. When the panel is touched, a voltage drop will occur due to the circuit being turned on. The controller in the panel calculates the proportion of the voltage drop and then further calculates the coordinates of the touched position; while the capacitive touch panel absorbs a small amount of current when a conductive object (such as a finger) touches the panel, so that The panel's controller calculates the touched position based on the proportion of current drawn.

With the trend of miniaturization of electronic devices, the size of the touch panel is also reduced. Therefore, it is often necessary to use a stylus to accurately click. Patent No. 2 and US Pat. No. 5,461,204 both disclose a stylus pen suitable for a touch panel for user operation.

Among them, the common features of CN2619304 and CN2577353 patents are that the stylus has a shell, a nib located at one end of the shell, a coil and a battery inside the shell, and a coil and a battery on the shell. The connected switch, when operating, touches the touch panel with the tip of the pen, so that the touch panel receives the pressure signal of the stylus, and by activating the switch, the power of the battery is transmitted to the coil to generate an induced magnetic field, so that the touch The control panel analyzes the commands input by the stylus by sensing a magnetic field, so as to replace the functions of the left and right buttons of the mouse; and the stylus disclosed in the US5461204 patent case has a tip for applying force to the touch panel at one end. And the stylus is provided with a first coil and a second coil, the first coil and the second coil are in constant contact, and when the pen tip presses on the touch panel, they are separated from each other by the pen tip to form different coils. The induced magnetic field is used as the input method of the command signal; the stylus provided in these patents mainly generates the induced magnetic field of the input signal by pressing the switch or using the pen tip linkage, but it is only applicable to the touch panel through pressure sensing , and cannot be used for capacitive touch panels.

The stylus of a general capacitive touch panel is used as the medium for current conduction on the touch panel, so that the current is transmitted to the user's hand through the stylus. It mainly has a pen body for the user to hold and is arranged on the pen body. The pen tip at one end, and the pen body and the pen tip are both made of conductive material, so that the current on the touch panel will be conducted from the pen tip and the pen body to the hand when the user holds the operation. However, if the user wears gloves or other insulators , even when the hand is in a wet state, it will affect the transmission of current on the touch panel, causing the touch panel to fail to recognize the operating state of the stylus.

It can be seen that the above-mentioned existing stylus obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently. In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. This is obviously the relevant industry. urgent problem to be solved. Therefore, how to create a stylus with a new structure is one of the current important research and development topics, and has become a goal that the industry needs to improve.

In view of the above-mentioned defects in the existing stylus, the inventor actively researches and innovates based on years of rich practical experience and professional knowledge engaged in the design and manufacture of such products, and cooperates with the application of academic theories, in order to create a new type of stylus. The stylus can improve the general existing stylus to make it more practical. Through continuous research, design, and after repeated trial samples and improvements, the utility model with practical value is finally created.

Contents of the invention

The main purpose of the utility model is to overcome the defects of the existing stylus and provide a stylus with a new structure. influence, and can maintain the transmission of current to help the touch panel to identify the touch point of the stylus, which is very suitable for practical use.

The purpose of this utility model and the solution to its technical problems are achieved by adopting the following technical solutions. A stylus proposed according to the utility model is suitable for a capacitive touch panel, which includes: a pen body, the inside of which is hollow to form an accommodating space, and a stylus connected to the touch panel is arranged at one end. The contacting conductive element; a coil, forming a current loop, is arranged in the accommodating space and electrically connected to the conductive element, so as to contact the touch panel through the conductive element and generate an induced electric field through the current loop.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

The aforementioned stylus, wherein both ends of the coil are respectively connected to the conductive element.

In the aforementioned stylus, the current loop is an internal path passing through the coil.

In the aforementioned stylus, wherein the pen body forms an opening at one end of the accommodating space and includes a pen cap covering the opening.

In the aforementioned stylus, one end of the coil is connected to the conductive element and the other end is connected to the pen cover.

The aforementioned touch pen is provided with a wire connecting the pen body and the conductive element.

The aforementioned touch pen is provided with a wire connecting the pen cover and the conductive element.

In the aforementioned stylus, the current loop includes an internal path passing through the coil and an external path passing through the pen body.

The aforementioned stylus, wherein the conductive element is selected from one of conductive rubber, conductive foam, and metal.

The aforementioned stylus is provided with an operation button that is pressed and connected to the coil to adjust the number of turns of the coil to change the magnitude of the induced electric field.

In the aforementioned stylus, the pen body is provided with a buffer element connected to the conductive element.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. As can be seen from the above, in order to achieve the above purpose, the utility model provides a stylus pen, which is suitable for a capacitive touch panel, which mainly includes a pen body with a hollow inside to form an accommodating space, and a pen body arranged in the accommodating space. Space and form a coil of a current loop, and one end of the pen body is provided with a conductive element electrically connected to the coil, the conductive element is used to contact the touch panel, so that the coil generates an induced electric field through the current loop, so that The touch panel recognizes the position pointed by the stylus through the induction electric field.

By means of the above technical solution, the stylus of the present utility model has at least the following advantages and beneficial effects:

The utility model improves the traditional stylus that needs to conduct current through the user's hand, so it is difficult to identify the position of the touch point of the stylus or the lack of identification errors, thereby improving the accuracy of the touch panel to identify the contact position of the stylus.

To sum up, the utility model has the above-mentioned many advantages and practical value, it has great improvement no matter in product structure or function, has significant progress in technology, and has produced easy-to-use and practical effects, and is relatively The existing stylus has enhanced outstanding functions, so it is more suitable for practical use, and it is a novel, progressive and practical new design.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and detailed descriptions are as follows.

Description of drawings

Fig. 1 is a schematic exploded view of the structure of the stylus of the present invention.

Fig. 2 is a schematic diagram (1) of an embodiment of the stylus of the present invention.

FIG. 3 is a schematic diagram (1) of an implementation of the middle coil of the stylus of the present invention.

FIG. 4 is a schematic diagram (2) of an implementation of the middle coil of the stylus of the present invention.

FIG. 5 is a schematic diagram (3) of an implementation of the middle coil of the stylus of the present invention.

FIG. 6 is a schematic view (four) of an implementation of the middle coil of the stylus of the present invention.

Fig. 7 is a schematic diagram (2) of an embodiment of the stylus of the present invention.

Detailed ways

In order to further elaborate the technical means and effects that the utility model adopts for reaching the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, its specific implementation, structure, features and features of the stylus proposed according to the utility model are described below. Efficacy, detailed as follows.

The aforementioned and other technical contents, features and effects of the present utility model will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. Through the description of the specific implementation, one can get a deeper and more specific understanding of the technical means and effects of the utility model to achieve the intended purpose, but the attached drawings are only for reference and description, and are not used to explain the present invention. Utility models are restricted.

First of all, please refer to FIG. 1 and FIG. 2 , which are schematic diagrams showing an exploded structure of the stylus of the present invention. The utility model relates to a stylus, which is suitable for capacitive touch panels, such as: touch screens 21 of electronic devices 20 such as computers, mobile phones, and PDAs. The stylus 10 mainly includes a body 11 and A coil 14, and the inside of the pen body 11 is hollow to form an accommodating space 110 for accommodating the coil 14, the pen body 11 forms an opening at one end of the accommodating space 110 and includes a pen cap 17 covering the opening , and one end of the pen body 11 is provided with a conductive element 12 electrically connected to the coil 14, wherein the conductive element 12 can be a conductive material such as conductive rubber, guide pad foam or metal, and is used to contact the touch screen. screen 21 to input operating instructions or data, etc., and the pen body 11 is provided with a buffer element 13 connected to the conductive element 12, so that when the conductive element 12 touches the touch screen 21, a buffer force is generated to avoid contact pressure. When the track is too violent or the operation is careless, the conductive element 12 scratches the touch screen 21 and causes the touch screen 21 to be damaged; when the conductive element 12 contacts the touch screen 21, use The transparent electrodes (not shown) arranged on the touch screen 21 are electrostatically combined with the conductive element 12 to induce current to flow to the conductive element 12 and form a current loop on the coil 14, so that the coil 14 Due to the change of current, an induction electric field is generated relative to the touch screen 21, so that the touch screen 21 is induced by the capacitance change generated when the conductive element 12 is in contact with the coil 14, and an induction is generated. The electric field is used to distinguish the contact point of the conductive element 12, that is, the position pointed by the stylus 10, which constitutes the main structure of the present utility model; in this way, the current on the touch screen 21 does not need to pass through the user Therefore, even if gloves are worn on the hand or there is an insulator between the stylus 10 and the hand, the recognition effect of the touch screen 21 will not be affected.

And in the specific embodiment of the present utility model, this coil 14 can be as shown in Figure 3, and its two ends are respectively connected to this conductive element 12, and the pen body 11 of this stylus 10 can be insulator or conductor, makes this The current of the touch screen 21 flows from the conductive element 12 to the coil 14, and then is conducted back to the conductive element 12 by the coil 14 to flow back to the touch screen 21, so that a current loop is formed inside the stylus 10 An internal passage L1; moreover, as shown in Figure 4, one end of the coil 14 is connected to the conductive element 12 and the other end is connected to the pen cap 17, and the pen body 11 and the pen cap 17 are conductors, so that the The current of the touch screen 21 flows from the conductive element 12 to the coil 14 , then conducts to the pen cover 17 and the pen body 11 by the coil 14 , and flows back to the touch screen 21 through the conductive element 12 , so that the current loop forms an internal path L1 and an external path L2 inside and outside the stylus 10, and the stylus 10 can also be provided with a wire 15 connecting the pen body 11 and the conductive element 12, as shown in Figure 5 As shown, the current flows from the conductive element 12 to the coil 14, and then conducts from the coil 14 to the pen cover 17 and the pen body 11, and finally flows from the wire 15 through the conductive element 12 and flows back to the touch screen. The screen 21 also forms an internal passage L1 and an external passage L2, or as shown in Figure 6, the two ends of the lead 15 are respectively connected to the pen cover 17 and the conductive element 12, so that the current passes through the conductive element 12, the conductive element After the coil 14 and the pen cover 17, the conductive element 12 and the touch screen 21 are directly conducted to the conductive element 12 and the touch screen 21 by the wire 15 without going through the pen body 11; Self-inductance generates an induced electric field, and the touch screen 21 can calculate the position pointed by the stylus 10 and the relationship between the stylus 10 and The tilt angle between the touch screens 21 .

In addition, as shown in FIG. 7, the touch panel applied to the stylus 10 can be a handwriting pad 30, and the stylus 10 is provided with an operation button 16, and the operation button 16 is pressed once. After the pressure track is connected to the coil 14 inside the stylus 10, the coil 14 is short-circuited to adjust the number of turns of the current flowing through the coil 14, so that the coil 14 generates induced electric fields of different strengths, so that the tablet 30 Not only can detect the contact position of the stylus 10 through the induced electric field, but also generate different input commands according to the change of the intensity of the induced electric field, as shown in the figure, press the operation button 16 to input commands to draw a line segment, It can also be used to input commands such as opening files or closing files.

To sum up, the utility model is mainly provided with a coil 14 electrically connected to the conductive element 12 inside the stylus 10. When the conductive element 12 is in contact with the touch panel, due to the conductive element 12 and the touch panel The electrostatic combination between the panels produces a capacitance change, and the induced current on the touch panel is conducted to the coil 14 through the conductive element 12, and the coil 14 self-inducts an induced electric field due to the change of the current, so that the touch panel responds to the capacitance change The position of the coil 14 and the induced electric field of the coil 14 know the contact point of the conductive element 12, so that the current on the touch panel does not need to be conducted through the user's hand. Therefore, even if the user wears gloves or insulators or even the hand is In wet state, the touch pen 10 of the present utility model can be used to operate the touch panel normally.

It can be seen from the above that, compared with the prior art, the beneficial effect of the present invention is to improve the accuracy of the touch panel to identify the contact position of the stylus.

The above are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those skilled in the art can use the technical content disclosed above to make some changes or modify them into equivalent embodiments without departing from the technical solution of the present utility model. Content, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (11)

1. A stylus, suitable for capacitive touch panels, is characterized in that the stylus (10) includes: A pen body (11), the inside of which is hollow to form an accommodating space (110), and a conductive element (12) in contact with the touch panel is arranged at one end; A coil (14) forms a current loop and is arranged in the accommodating space (110) and electrically connected to the conductive element (12), so as to contact the touch panel through the conductive element (12) and generate An induced electric field. 2. The stylus according to claim 1, wherein two ends of the coil (14) are respectively connected to the conductive element (12). 3. The stylus according to claim 1 or 2, wherein the current loop is an internal path (L1) passing through the coil (14). 4. The touch pen according to claim 1, wherein the pen body (11) forms an opening at one end of the accommodating space (110) and includes a pen cap (17) covering the opening. 5. The touch pen according to claim 4, wherein one end of the coil (14) is connected to the conductive element (12) and the other end is connected to the pen cover (17). 6. The touch pen according to claim 5, characterized in that it is provided with a wire (15) connecting the pen body (11) and the conductive element (12). 7. The touch pen according to claim 5, characterized in that it is provided with a wire (15) connecting the pen cover (17) and the conductive element (12). 8. The stylus according to claim 6 or 7, wherein said current loop includes an internal path (L1) passing through the coil (14) and an external path passing through the pen body (11) (L2). 9. The touch pen according to claim 1, wherein the conductive element (12) is selected from one of conductive rubber, conductive foam, and metal. 10. The stylus according to claim 1, characterized in that it is provided with an operation button (16) that is pressed and connected to the coil (14) to adjust the number of turns of the coil (14) to change the magnitude of the induced electric field. 11. The touch pen according to claim 1, characterized in that said pen body (11) is provided with a buffer element (13) connected to the conductive element (12).

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