CN113946242A

CN113946242A - Touch screen, electronic equipment and touch system

Info

Publication number: CN113946242A
Application number: CN202111232620.4A
Authority: CN
Inventors: 王司潮; 刘武; 李海
Original assignee: Shenzhen Goodix Technology Co Ltd
Current assignee: Shenzhen Goodix Technology Co Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-01-18

Abstract

The application provides a touch screen, electronic equipment and touch-control system, the touch screen includes a plurality of electrodes, and wherein every electrode includes two segmentation, first end and the second end that set up relatively, the one end that lies in same one side of two segmentations is connected, the other end of two segmentations forms respectively first end with the second end. When the first end and the second end are in short circuit, each electrode is used for detecting a capacitance signal when a target touches the touch screen. When the two segments, the first end and the second end form a coil loop, each electrode is used for detecting an electromagnetic signal output by a target to the touch screen. The touch screen can simultaneously realize touch detection of the touch screen on fingers and an electromagnetic pen, and more cost is not increased.

Description

Touch screen, electronic equipment and touch system

Technical Field

The embodiment of the application relates to the technical field of touch control, and more particularly relates to a touch screen, an electronic device and a touch system.

Background

The current touch screen supports the touch operation of fingers, but the operation precision and the resolution of the fingers are low, and only some rough touch operations can be completed. And the touch operation of the touch pen on the touch screen can obtain better precision and resolution, so that some complex touch operations, such as drawing, text editing, annotation and the like, can be realized. The stylus includes a capacitive active stylus and an electromagnetic stylus. Because the electromagnetic pen is worked passively, its core part need not supply power, and the volume is less, is convenient for carry as an organic whole with electronic equipment to can bring better operating accuracy and user experience, therefore present touch-control screen is except that the touch-control operation of supporting finger still needs the touch-control operation of compatible electromagnetic pen.

In order to support the use of the electromagnetic pen, the touch screen needs to include an electromagnetic resonance system for detecting the touch operation of the electromagnetic pen in addition to the original capacitive detection system for detecting the touch operation of the finger, and the two independent detection systems significantly increase the cost of the touch screen. Therefore, how to simultaneously realize the touch detection of the touch screen on the finger and the electromagnetic pen at lower cost becomes a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a touch screen, electronic equipment and touch system, can realize touch detection of the touch screen to fingers and an electromagnetic pen simultaneously, and do not increase more cost.

In a first aspect, a touch screen is provided, which includes a plurality of electrodes, where each electrode includes two segments disposed oppositely, a first end and a second end, the two segments are connected at one end of the same side, and the other ends of the two segments form the first end and the second end respectively. When the first end and the second end are in short circuit, each electrode is used for detecting a capacitance signal when a target touches the touch screen. When the two segments, the first end and the second end form a coil loop, each electrode is used for detecting an electromagnetic signal output by a target to the touch screen.

In the embodiment of the present application, an electrode in a touch screen includes two segments oppositely disposed, so that the electrode has a condition of forming a coil loop. When the first end and the second end of the electrode are in short circuit, the two sections of the electrode form a whole and are used for detecting a capacitance signal on the electrode when a target touches the touch screen; when the two segments, the first end and the second end of the electrode form a coil loop, the electrode is used for detecting an electromagnetic signal output by a target to the touch screen. Therefore, the touch screen can simultaneously realize the capacitance detection of the finger and the electromagnetic detection of the electromagnetic pen, and the touch detection of the finger and the electromagnetic pen is carried out by sharing the same electrode, so that the additional cost is not required to be increased.

In one possible implementation, each of the two segments is a bar. The strip-shaped electrode can simplify the manufacturing process of the electrode, reduce the area of the electrode and reduce the cost.

In one possible implementation, the lateral electrodes and the longitudinal electrodes of the plurality of electrodes are located in different stacks.

In one possible implementation, each of the two segments is formed by a specific pattern concatenated together. For example, the specific pattern is a diamond pattern.

In a possible implementation manner, the horizontal electrodes and the vertical electrodes in the touch screen are located in the same lamination layer, and the specific patterns of the horizontal electrodes and the vertical electrodes are distributed in a staggered manner.

The electrodes are formed by adopting the specific patterns which are connected in series, and the specific patterns of the transverse electrodes and the specific patterns of the longitudinal electrodes are distributed in a staggered manner, so that the sensing area between the transverse electrodes and the longitudinal electrodes is increased, the signal quantity of mutual capacitance between the transverse electrodes and the longitudinal electrodes can be increased when capacitance detection, particularly mutual capacitance detection is carried out, and the performance of touch detection is improved. In addition, the specific patterns of the transverse electrodes and the specific patterns of the longitudinal electrodes are distributed in a staggered mode, so that the transverse electrodes and the longitudinal electrodes can be arranged on the same lamination, and the thickness of the touch screen is reduced.

In one possible implementation, a first of the two segments is formed by a particular pattern concatenated together, and a second of the two segments is a lead line.

Alternatively, in another possible implementation, the electrode further comprises a third segment for connecting the two segments, wherein the third segment is formed by a specific pattern connected in series, and the two segments are leads.

The touch screen comprises a plurality of electrodes, wherein one part of each electrode is formed by specific patterns which are connected in series, the other part of each electrode is a lead wire used for leading out the specific patterns which are connected in series to the same side, so that the electrodes have the condition of forming a coil loop, the transverse electrodes and the longitudinal electrodes can be arranged on the same lamination layer to reduce the thickness of the touch screen, and meanwhile, the lead wires are used as one part of the electrodes, so that the electrode area is reduced, and the cost is reduced.

In a possible implementation manner, the horizontal electrodes and the vertical electrodes in the touch screen are located in the same lamination layer, and the specific patterns of the horizontal electrodes and the vertical electrodes are distributed in a staggered manner. For example, the specific pattern is a diamond pattern.

In one possible implementation manner, the transverse electrodes and the longitudinal electrodes in the touch screen are located in the same lamination layer, and the specific patterns of the transverse electrodes and the longitudinal electrodes are complementary. For example, the specific patterns of the transverse electrodes and the longitudinal electrodes are complementary to each other to form a Chinese character 'mi' pattern.

In one possible implementation, the surface of the electrode is in the form of a grid.

In a second aspect, an electronic device is provided, which includes the touch screen in the first aspect or any possible implementation manner of the first aspect.

In a third aspect, a touch system is provided, which includes the touch screen of the first aspect or any possible implementation manner of the first aspect, and an electromagnetic pen.

Drawings

Fig. 1 is a schematic diagram of a touch screen.

Fig. 2 is a schematic view of a strip electrode according to an embodiment of the present application.

Fig. 3 is a schematic diagram of an electromagnetic pen.

Fig. 4 is a schematic diagram of a capacitance detection circuit according to an embodiment of the present application.

Fig. 5 is a schematic diagram of an electrode having a diamond pattern.

Fig. 6 is an enlarged view of the area a in fig. 5.

Fig. 7 is a schematic view of an electrode formed of a specific pattern and a lead wire.

Fig. 8 is a schematic view of an electrode having a "m" shaped pattern.

Fig. 9 is an enlarged view of one of the "m" shaped patterns of fig. 8.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

Mobile devices in the current market, such as smart phones, tablet computers, notebook computers and the like, have abundant display screen human-computer interaction interfaces. From the functional viewpoint, some electronic devices support only the operation of a finger, and some electronic devices support both the operation of a finger and the operation of a stylus (hereinafter, simply referred to as "pen"). Technically, a capacitive detection technology is basically integrated on a touch screen of the electronic equipment, and the capacitive detection technology supports both the operation of a finger and the operation of a capacitive pen; in addition to the integrated capacitive detection technology, electromagnetic resonance technology is also integrated on other electronic devices to support the operation of the electromagnetic pen. From the aspect of human-computer interaction experience, when a finger operates on a touch screen, the coordinate precision of the position of the finger is low, and only some rough operations can be generally performed; the coordinate control precision of the pen is higher, and some special operations such as drawing, text editing, annotation and the like can be realized. The pen includes electric capacity initiative pen (for short initiative pen or electric capacity pen) and electromagnetism resonance pen (for short electromagnetism pen), and wherein, the electromagnetism pen is passive work, and its core component need not supply power, and the volume is less, is convenient for carry as whole with electronic equipment to can bring more excellent operation precision and user experience, consequently present touch-control screen is except that the touch-control operation of supporting finger and electric capacity pen, still the touch-control operation of compatible electromagnetism pen. In terms of cost, the conventional touch screen can realize capacitance detection, and if the electronic equipment needs to support the function of a capacitance pen, the cost is mainly increased by the capacitance pen, so that the cost of the capacitance pen is higher than that of an electromagnetic pen; if the electronic device needs to support the function of the electromagnetic pen, the touch screen needs to separately add a sensor and a controller supporting an electromagnetic Resonance technology in addition to the integrated capacitance detection function, for example, as shown in fig. 1, the touch screen 10 includes a capacitive touch panel 110, a display panel 120, and an electromagnetic induction (EMR) panel 130, and the two separate systems of the capacitive touch panel 110 and the EMR panel 130 result in a significant increase in the cost of the touch screen 10.

Therefore, the touch screen can simultaneously realize touch detection on the finger and the electromagnetic pen without increasing more cost.

Fig. 2 is a schematic view of a touch screen according to an embodiment of the present application. As shown in fig. 2, the touch screen 10 includes a plurality of electrodes, which may also be referred to as sensors or channels. The touch screen 10 has a plurality of rows and columns of electrodes arranged in a staggered manner, wherein the number of the horizontal electrodes and the number of the vertical electrodes can be set based on the size of the touch screen 10 and the requirement of touch detection, for example, a 20-row × 40-column electrode array is formed, or a 40-row × 40-column electrode array is formed. Only a small number of electrodes are illustrated in fig. 2 to illustrate the technical solution of the present application, where TX1, TX2, and TX3 are transverse electrodes, and RX1, RX2, and RX3 are longitudinal electrodes. In the embodiments of the present application, the transverse electrode is taken as a driving electrode, and the longitudinal electrode is taken as an induction electrode or a receiving electrode for example.

As shown in fig. 2, each of the plurality of electrodes of the touch screen 10 includes two segments, a first end and a second end, which are oppositely disposed. Wherein, the one end that lies in same one side of two segmentations is connected, and the other end of two segmentations forms the first end and the second end of this electrode respectively. For example, taking electrode TX1 as an example, electrode TX1 includes two segments, a first end and a second end, which are oppositely disposed, wherein the two segments are respectively a first segment TX1-101 and a second segment TX1-102, the ends of the first segment TX1-101 and the second segment TX1-102, which are located on the same side, are connected, and the ends of the first segment TX1-101 and the second segment TX1-102, which are located on the other side, respectively form two ends of electrode TX1, namely a first end TX1-a and a second end TX 1-b.

When the first end and the second end of the electrode are short-circuited, the electrode is used for detecting a capacitance signal when a target touches the touch screen 10. When the two segments, the first end and the second end of the electrode form a coil loop, the electrode is used for detecting an electromagnetic signal output by a target to the touch screen 10.

It should be understood that the touching of the touch screen by the object, which may be, for example, a finger, an electromagnetic pen, etc., includes direct contact with the touch screen and proximity to the touch screen.

It can be seen that the electrode is provided with the condition for forming a coil loop, since the electrode comprises two segments arranged oppositely. When the first end and the second end of the electrode are in short circuit, the two sections of the electrode form a whole and are used for detecting a capacitance signal on the electrode when a target touches the touch screen; when the two segments, the first end and the second end of the electrode form a coil loop, the electrode is used for detecting an electromagnetic signal output by a target to the touch screen. Therefore, the touch screen can simultaneously realize the capacitance detection and the electromagnetic detection of the target, and the capacitance detection and the electromagnetic detection are carried out on the target by sharing the same electrode, so that the additional cost is not required to be increased.

Fig. 3 (a) shows an electromagnetic pen, which may be equivalent to the parallel structure of the coil inductance and the capacitance shown in fig. 3 (b). In addition, in order to enrich the function of the electromagnetic pen, other devices such as a switch and the like may be provided in an equivalent circuit of the electromagnetic pen, which is not shown in fig. 3.

Fig. 4 shows a touch detection circuit according to an embodiment of the present application. As shown in FIG. 4, taking the electrode TX1 in FIG. 2 as an example, the touch detection circuit 20 is connected to the first terminal TX1-a and the second terminal TX1-b of the electrode TX 1. When the electrode TX1 is used for detecting a capacitance signal, the touch detection circuit 20 controls the first terminal TX1-a and the second terminal TX1-b of the electrode TX1 to be short-circuited, so that the two segments form a whole, and a coil loop capable of flowing current cannot be generated inside the electrode, so that the electrode is not influenced by an electromagnetic signal.

When the electrode TX1 is used to detect an electromagnetic signal, the touch detection circuit 20 controls the first terminal TX1-a and the second terminal TX-b of the electrode TX1 to be respectively connected to different potentials to form a coil loop capable of flowing a current, and when a driving signal is input to the coil loop, a current is generated in the coil loop, and a magnetic field is induced to emit the electromagnetic signal. If an electromagnetic pen is arranged above the touch screen, after the electromagnetic pen receives an electromagnetic signal emitted by the electrode TX1, an LC oscillating circuit in the electromagnetic pen starts oscillation. When the electrode TX1 stops transmitting the electromagnetic signal, the LC oscillating circuit still keeps oscillating and outputs the electromagnetic signal to the touch screen 10 in the opposite direction, and the coil loop formed by the electrode TX1 can sense the electromagnetic signal output by the electromagnetic pen. According to the strength of the electromagnetic signals sensed in different directions, the pen point position of the electromagnetic pen can be positioned.

It should be understood that in the embodiments of the present application, the electrode forms a coil loop, which may mean that the electrode is included in the coil loop, i.e., includes two segments of the electrode, a first end and a second end; it may also mean that the electrode is part of a coil loop, i.e. that there may also be other conductors in the coil loop.

The touch detection circuit 20 may include, for example, a control circuit, a driving circuit, a detection circuit, and the like. The drive circuit is used for outputting drive signals to the electrodes, the control circuit is used for controlling the connection mode of the first end and the second end of the electrodes in the touch screen, and the detection circuit is used for detecting signals generated on the electrodes in different connection modes.

FIG. 4 shows an example in which a switch K1 is disposed between the second terminal TX1-b of the electrode TX1 and the touch detection circuit 20; and, between the second terminal TX1-b and the common port, a switch K2 is provided. When the touch detection circuit 20 controls the switch K1 to be closed, the first terminal TX1-a and the second terminal TX1-b of the electrode TX1 are both connected to the touch detection circuit 20, that is, the first terminal TX1-a and the second terminal TX1-b are short-circuited to detect a capacitance signal on the electrode TX 1; when the touch detection circuit 20 controls the switch K2 to be closed, the first terminal TX1-a of the electrode TX1 is connected to the touch detection circuit 20, and the second terminal TX1-b is connected to the common port, so that the electrode TX1 forms a coil loop, thereby sensing an electromagnetic signal output by the electromagnetic pen.

The common port is a fixed potential, for example, the common port can be a system ground GND of the touch panel 10 or a predetermined level V_comThe port of (2). Wherein, V_comE.g. equal to the supply voltage V_CCOr equal to half the supply voltage, i.e. V_com＝V_CC/2. In fig. 4, the common port is GND as an example.

It should be understood that the capacitance signal on each electrode may be a self-capacitance signal of the electrode to ground, or a mutual capacitance signal between the electrode and an electrode perpendicular thereto.

The touch detection circuit 20 may detect the capacitive signal and the electromagnetic signal in a time-sharing manner. For example, in the first period T1 of one detection cycle, the touch detection circuit 20 detects the capacitance signal to determine information such as the touch position of the object. In the first time period T1, the touch detection circuit 20 may perform mutual capacitance detection, that is, detect the mutual capacitance between the two electrodes in the horizontal and vertical directions; self-capacitance detection, i.e. detecting the self-capacitance of each electrode to ground, may also be performed; or alternatively performing self-capacitance detection and mutual capacitance detection. In the second time period T2 of the detection cycle, the touch detection circuit 20 detects the electromagnetic signal to determine information such as the touch position of the object.

In one implementation, each of the two segments of the electrode is strip-shaped.

For example, as shown in fig. 2, each electrode is a strip-shaped electrode, the strip-shaped electrode is bent to form two parallel sections, and the ends of the two sections opposite to the bent position form a first end and a second end of the strip-shaped electrode respectively. The first end and the second end of the electrode are used for being connected with the touch detection circuit 20, and the touch detection circuit 20 can control the connection mode of the first end and the second end of the electrode, so that the capacitance detection and the electromagnetic detection of the target are realized. The strip-shaped electrode can simplify the manufacturing process of the electrode, reduce the area of the electrode and reduce the cost.

When strip electrodes are used in the touch screen, the horizontal electrodes and the vertical electrodes in the plurality of electrodes are optionally located in different stacked layers, for example, as shown in fig. 2, the RX electrodes may be located above the TX electrodes.

In one implementation, each of the two segments of the electrode is formed by a particular pattern concatenated together. For example, the specific pattern is a diamond pattern.

The electrode shown in fig. 5, each segment of which consists of a diamond pattern concatenated together, for example, the first TX1-101 and the second TX1-102 segments of the electrode TX1 are parallel to each other and each segment comprises a diamond pattern concatenated together; as another example, first and second segments RX3-101 and RX3-102 of electrode RX3 are parallel to each other and each segment includes a diamond pattern concatenated together.

As can be seen from fig. 5, since the electrodes are formed using the specific patterns connected in series and the specific patterns of the transverse electrodes and the specific patterns of the longitudinal electrodes are alternately arranged, the sensing area between the transverse electrodes and the longitudinal electrodes is increased. When capacitance detection is carried out, particularly mutual capacitance detection is carried out, the signal quantity of mutual capacitance between the transverse electrode and the longitudinal electrode can be increased, and the touch detection performance is improved. In addition, the specific patterns of the transverse electrodes and the specific patterns of the longitudinal electrodes are distributed in a staggered mode, so that the transverse electrodes and the longitudinal electrodes can be arranged on the same lamination layer, and the thickness of the touch screen is reduced.

In order to further increase the sensing area between the transverse electrodes and the longitudinal electrodes, the edges of the specific patterns may be alternatively made as teeth, and the specific patterns of the transverse electrodes and the longitudinal electrodes may be engaged with each other by the edges of the teeth. It should be noted that there is no contact between the lateral electrodes and the longitudinal electrodes.

For example, as shown in the enlarged view of the area a in fig. 5 in fig. 6, adjacent diamond patterns are staggered in a meshing manner, so that the sensing area between the TX electrode and the RX electrode is increased, and when capacitance detection, especially mutual capacitance detection is performed, the signal amount of mutual capacitance between the transverse electrode and the longitudinal electrode can be increased, thereby improving the performance of touch detection. As shown in fig. 6, the TX electrode and the RX electrode are disposed on the same layer, and the diamond patterns on the TX electrode segments are directly connected to each other, and the diamond patterns on the RX electrode segments are connected to each other by a bridge, such as a black short line shown in fig. 6. It should be understood that fig. 6 only shows the profile of two edges of each diamond pattern, and the other edges are similarly shaped and are not shown.

In one implementation, a first of two segments of the electrode is formed of a particular pattern that is concatenated together, and a second of the two segments is a lead. Such as electrode TX1 shown in fig. 7, the first segment TX1-101 of electrode TX1 is made up of a specific pattern connected in series, and the second segment TX1-102 is a lead. Thus, the first terminal TX1-a and the second terminal TX1-b of the electrode TX1 are led to the same side.

Alternatively, in another implementation, the electrode further comprises a third segment for connecting two segments, namely the first segment and the second segment, which are oppositely disposed. Wherein the third segment is formed of a specific pattern concatenated together, and the first segment and the second segment are lead lines. For example, the electrode RX1 shown in fig. 7, the first segment RX1-101 and the second segment RX1-102 of the electrode RX1 are leads, and the third segment RX1-103 of the electrode RX1 is composed of specific patterns connected in series. Thus, the first terminal RX1-a and the second terminal RX1-b of electrode RX1 are brought to the same side.

Each small square in fig. 7 corresponds to a pattern, for example, a "m" pattern, as shown in fig. 8, one of each row of "m" patterns may be connected to form a TX electrode, and two ends of each row of TX electrodes lead out a first end and a second end of the TX electrode to the same side of the touch screen 10 through lead wires, so that the TX electrodes form a coil loop; i in the shape of "meter" of each column may be connected to form an RX electrode, and two ends of each column of RX electrodes lead out a first end and a second end of the RX electrode to the same side of the touch screen 10 through lead wires, so that the RX electrodes form a coil loop.

Because a part of the electrodes are formed by the specific patterns which are connected in series, and the other part of the electrodes is the lead wire which is used for leading the specific patterns which are connected in series to the same side, the electrodes TX1 and RX1 have the condition of forming a coil loop, and the transverse electrodes and the longitudinal electrodes can be arranged on the same lamination layer, so that the thickness of the touch screen 10 is reduced, and meanwhile, the lead wire is used as a part of the electrodes, so that the electrode area is reduced, and the cost is reduced.

In one implementation, the horizontal electrodes and the vertical electrodes in the touch screen 10 are located in the same lamination layer, and the specific patterns of the horizontal electrodes and the vertical electrodes are complementary. For example, the specific patterns of the transverse electrodes and the longitudinal electrodes are complementary to each other to form a "meter" shaped pattern, and fig. 8 shows a segment of the electrodes composed of the "meter" shaped patterns connected in series. The relative position between the portions of the TX electrodes and the portions of the RX electrodes in each "meter" word in fig. 8 can be seen in fig. 9.

Fig. 9 shows a specific structure of any one of the "m" shaped patterns in fig. 8, and it can be seen that the lateral electrodes TX in the white area and the longitudinal electrodes RX in the shaded area are complementary. It should be noted that there is no contact between the transverse electrodes TX and the longitudinal electrodes RX, and fig. 9 is only schematic and does not show the gap between the transverse electrodes and the longitudinal electrodes. Similar to fig. 6, the patterns on the segments of the RX electrode in fig. 9 can be connected together by bridges, such as the black short lines shown in fig. 9.

In another implementation, the horizontal electrodes and the vertical electrodes in the touch screen 10 are located in the same lamination layer, and the specific patterns of the horizontal electrodes and the vertical electrodes are distributed in a staggered manner. For example, the specific pattern is a diamond pattern, and in this case, the sections of the electrode, which are composed of diamond patterns connected in series, are similar to one of the sections of the electrode in fig. 4 and are not illustrated here.

Therefore, the electrodes are formed by the specific patterns connected in series, the sensing area between the transverse electrodes and the longitudinal electrodes can be increased no matter the transverse electrodes and the longitudinal electrodes are complemented to form the specific patterns or the specific patterns of the transverse electrodes and the specific patterns of the longitudinal electrodes are distributed in a staggered mode, the signal quantity of mutual capacitance between the transverse electrodes and the longitudinal electrodes is increased when capacitance detection is carried out, particularly mutual capacitance detection is carried out, and the performance of touch detection is improved. In addition, the transverse electrodes and the longitudinal electrodes can be arranged on the same lamination, so that the thickness of the touch screen is reduced.

Alternatively, the surface of the electrodes may be in a grid to reduce the capacitance of the electrode to ground during mutual capacitance detection to reduce the effect on the mutual capacitance signal between the transverse electrodes and the longitudinal electrodes.

Besides the diamond pattern and the "m" shaped pattern, the specific pattern may be a triangular pattern or other polygonal pattern, and the like, which is not limited herein.

The application further provides an electronic device, which comprises a touch screen 10.

The application also provides a touch system, which comprises a touch screen 10 and an electromagnetic pen.

It should be noted that, without conflict, the embodiments and/or technical features in the embodiments described in the present application may be arbitrarily combined with each other, and the technical solutions obtained after the combination also fall within the protection scope of the present application.

The system, apparatus and method disclosed in the embodiments of the present application can be implemented in other ways. For example, some features of the method embodiments described above may be omitted or not performed. The above-described device embodiments are merely illustrative, the division of the unit is only one logical functional division, and there may be other divisions when the actual implementation is performed, and a plurality of units or components may be combined or may be integrated into another system. In addition, the coupling between the units or the coupling between the components may be direct coupling or indirect coupling, and the coupling includes electrical, mechanical or other connections.

It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes and the generated technical effects of the above-described apparatuses and devices may refer to the corresponding processes and technical effects in the foregoing method embodiments, and are not described herein again.

It should be understood that the specific examples in the embodiments of the present application are for the purpose of promoting a better understanding of the embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application, and that various modifications and variations can be made by those skilled in the art based on the above embodiments and fall within the scope of the present application.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A touch screen is characterized by comprising a plurality of electrodes, wherein each electrode comprises two segments which are oppositely arranged, a first end and a second end, one ends of the two segments which are positioned on the same side are connected, the other ends of the two segments respectively form the first end and the second end,

wherein when the first end and the second end are short-circuited, each electrode is used for detecting a capacitance signal when a target touches the touch screen,

when the two segments, the first end and the second end form a coil loop, each electrode is used for detecting an electromagnetic signal output by a target to the touch screen.

2. The touch screen of claim 1, wherein each of the two segments is bar-shaped.

3. The touch screen of claim 2, wherein the lateral electrodes and the longitudinal electrodes of the plurality of electrodes are in different stacks.

4. The touch screen of claim 1, wherein each of the two segments is formed of a particular pattern concatenated together.

5. The touch screen of claim 4, wherein the horizontal electrodes and the vertical electrodes in the touch screen are in the same lamination layer, and the specific patterns of the horizontal electrodes and the vertical electrodes are distributed in a staggered manner.

6. The touch screen of claim 5, wherein the specific pattern is a diamond pattern.

7. The touch screen of claim 1, wherein a first segment of the two segments is formed of a particular pattern concatenated together and a second segment of the two segments is a lead line.

8. The touch screen of claim 1, wherein the electrode further comprises a third segment connecting the two segments, wherein the third segment is formed by a specific pattern concatenated together, and wherein the two segments are lead lines.

9. The touch screen of claim 7 or 8, wherein the horizontal electrodes and the vertical electrodes in the touch screen are in the same lamination layer, and the specific patterns of the horizontal electrodes and the vertical electrodes are distributed in a staggered manner.

10. The touch screen of claim 9, wherein the specific pattern is a diamond pattern.

11. The touch screen of claim 7 or 8, wherein the transverse electrodes and the longitudinal electrodes in the touch screen are in the same lamination layer, and the specific patterns of the transverse electrodes and the longitudinal electrodes are complementary.

12. The touch screen of claim 11, wherein the specific patterns of the transverse electrodes and the longitudinal electrodes are complementary to each other to form a "cross" pattern.

13. The touch screen of any one of claims 1-8, wherein the surface of the electrode is in a grid pattern.

14. An electronic device comprising the touch screen of any one of claims 1-13.

15. A touch system, comprising:

the touch screen of any one of claims 1-13; and the number of the first and second groups,

an electromagnetic pen.