Electrode applied to capacitive touch screen, capacitive touch screen and electronic equipment

Abstract

The embodiment of the utility model provides an electrode applied to a capacitive touch screen, the capacitive touch screen and electronic equipment. The electrode applied to the capacitive touch screen comprises a plurality of segmented electrodes; each segmented electrode comprises a main body section, a transition section and a connection section which are positioned on the same plane; the main body section is connected with the transition section through a connecting section; a first transition space is formed between the connecting section and the main body section and the transition section which are connected with the connecting section; the main body section and the transition section are long-strip-shaped, and at least part of the segmented electrodes are sequentially arranged in the same plane in the direction perpendicular to the length direction of the main body section; when the arrangement positions of the two segmented electrodes are adjacent, at least part of the transition section of the first segmented electrode in the two segmented electrodes is located in the first transition space of the second segmented electrode.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of touch technology, and in particular to an electrode applied to a capacitive touch screen, a capacitive touch screen, and an electronic device. Background Art

[0002] Capacitive touch screens are widely used in human-computer interaction design of mobile phones, tablets, and notebooks. Their touch sensors usually arrange driving electrodes and sensing electrodes in the horizontal and vertical directions of the screen respectively, forming a matrix-type multi-node mutual capacitance sensor with criss-crossing electrode channels in two directions.

[0003] However, in the prior art, the electric field lines in the area between two adjacent driving electrodes and the area between two adjacent sensing electrodes are relatively sparse, and the influence of the finger on the electric field there is relatively small, so when the finger is located between two longitudinal or transverse electrode channels, it is difficult for the touch sensor to accurately detect the position of the finger. Therefore, there is an urgent need for a new touch sensor that can more accurately detect the position of the finger when the finger is located between two longitudinal or transverse electrode channels. Utility Model Content

[0004] In view of this, embodiments of the present application provide an electrode applied to a capacitive touch screen, a capacitive touch screen, and an electronic device to at least partially solve the above problems.

[0005] According to a first aspect of an embodiment of the present application, there is provided an electrode for a capacitive touch screen, comprising a plurality of segmented electrodes; the segmented electrodes comprise a main body segment, a transition segment and a connecting segment located in the same plane; the main body segment and the transition segment are connected via the connecting segment; a first transition space is formed between the connecting segment and the main body segment and the transition segment connected to the connecting segment; the main body segment and the transition segment are in the shape of long strips; at least some of the plurality of segmented electrodes are arranged in sequence in the same plane along a direction perpendicular to the length direction of the main body segment; when the arrangement positions of two segmented electrodes are adjacent, the transition segment of the first of the two segmented electrodes is at least partially located in the first transition space of the second segmented electrode.

[0006] In a possible implementation, the main segment and the transition segment are located on the same side of the connecting segment; the main segment, the transition segment and the connecting segment of the same segmented electrode are parallel to each other; and when a plurality of the segmented electrodes are arranged sequentially in the same plane along a direction perpendicular to the length direction of the main segment, the main segments of the plurality of the segmented electrodes are parallel to each other.

[0007] In a possible implementation, the segmented electrode includes N transition segments, and the main segment is located in the middle of the N transition segments; and the width of the main segment is greater than the transition segment; wherein N is an even number, when N is greater than 2, two adjacent transition segments located on the same side of the main segment are connected by the connecting segment, and a second transition space is formed between the connecting segment and the two adjacent transition segments connected to the connecting segment.

[0008] In a possible implementation, when N is greater than 2, in the transition segments of the segmented electrode located on the same side of the main segment, if the distance between the first transition segment and the main segment is smaller than the distance between the second transition segment and the main segment, the width of the first transition segment is greater than the width of the second transition segment.

[0009] In a possible implementation manner, the N transition sections have the same width.

[0010] In one possible implementation, the distance between the third transition section located in the first transition space and the main section and the transition section forming the first transition space is smaller than the width of the third transition section; and / or the distance between the fourth transition section located in the second transition space and the two adjacent transition sections forming the second transition space is smaller than the width of the fourth transition section.

[0011] In a possible implementation manner, the electrode includes a driving electrode and a sensing electrode; and one of the driving electrode and the sensing electrode is the segmented electrode, or both the driving electrode and the sensing electrode are the segmented electrode.

[0012] In a possible implementation manner, when the driving electrodes and the sensing electrodes are both segmented electrodes, the driving electrodes and the sensing electrodes are located in different planes.

[0013] In a possible implementation, the main section, the transition section and the connecting section include a plurality of grid lines, and grid through holes are provided between adjacent grid lines; the first transition space formed by the main section, the transition section and the connecting section has an opening, and the opening of the first transition space and the connecting section are respectively located on opposite sides of the first transition space.

[0014] According to a second aspect of the embodiments of the present application, a capacitive touch screen is provided, comprising the electrode applied to the capacitive touch screen as described in any of the above embodiments.

[0015] According to a third aspect of an embodiment of the present application, an electronic device is provided, comprising the capacitive touch screen as described in the second aspect above.

[0016] In an embodiment of the present application, the segmented electrode includes a main body segment, a transition segment and a connecting segment located in the same plane; the main body segment and the transition segment are connected by a connecting segment; a first transition space is formed between the connecting segment and the main body segment and the transition segment connected to the connecting segment; the main body segment and the transition segment are long strips; at least part of the multiple segmented electrodes are arranged in sequence in the same plane along a direction perpendicular to the main body segment; and when the arrangement positions of two segmented electrodes are adjacent, the transition segment of the first segmented electrode of the two segmented electrodes is at least partially located in the first transition space of the second segmented electrode, and the two adjacent segmented electrodes can be transitioned through the transition segment. Electric field lines originating from both the main body segment and the transition segment of a segmented electrode can exist between the main body segment and the transition segment at the same time, so that there is a higher density of electric field lines between the main body segment and the transition segment of the segmented electrode. When the finger is located in the area between two adjacent segmented electrodes, it will be between the main segment and the transition segment of at least one segmented electrode. At this time, the finger can be in an area with a higher density of electric field lines, which can have a greater impact on the electric field lines in this area, so that the touch sensor can accurately detect the position of the finger based on changes in the electric field. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the electrode structure of an existing capacitive touch screen;

[0019] Figure 2 It is an enlarged view of the local structure of an existing capacitive touch screen;

[0020] Figure 3 It is a statistical diagram of the signal changes in the sensing electrode when the finger moves on the sensing electrode;

[0021] Figure 4 is a schematic structural diagram of an electrode applied to a capacitive touch screen provided by an optional embodiment of the present application;

[0022] Figure 5 is an enlarged view of a local structure of an electrode applied to a capacitive touch screen provided by an optional embodiment of the present application;

[0023] Figure 6 is a statistical schematic diagram of signal changes in the transition section when a finger moves on the transition section in an optional embodiment of the present application;

[0024] Figure 7 is a partial structural schematic diagram of an electrode applied to a capacitive touch screen provided by an optional embodiment of the present application;

[0025] Figure 8 is a schematic structural diagram of a segmented electrode provided by an optional embodiment of the present application;

[0026] Fig. 9 It is a schematic diagram of the structure of another electrode applied to a capacitive touch screen provided by an optional embodiment of the present application.

[0027] Reference numerals:

[0028] 100, capacitive touch screen; 101, touch chip; 200, electrode used for capacitive touch screen; 210, segmented electrode; 211, main segment; 212, transition segment; 213, connection segment; TX, driving electrode; RX, sensing electrode; 2101, first transition space; 2102, second transition space; 2121, first transition segment; 2122, second transition segment; 2123, third transition segment; 2124, fourth transition segment. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the embodiments of the present application should fall within the scope of protection of the embodiments of the present application.

[0030] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0031] It should be understood that although the terms first, second, third, etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0032] like Figure 1As shown, the operation area of ​​the existing capacitive touch screen 100 is usually provided with two layers of electrodes, one of which is the driving electrode TX (also known as the transmitting electrode), and the other is the sensing electrode RX (also known as the receiving electrode). The driving electrode TX and the sensing electrode RX are both connected to the touch chip 101. The touch chip 101 can input a pulse voltage to the driving electrode TX, so that the driving electrode TX generates an electric field, and the corresponding capacitance is generated at the node intersecting between the driving electrode TX and the sensing electrode RX. The touch chip 101 can detect the capacitance of the node intersecting between the driving electrode TX and the sensing electrode RX by detecting the current or voltage signal of the sensing electrode RX. When a finger touches the touch screen, the electric field line between the driving electrode TX and the sensing electrode RX will be blocked, so that the capacitance between the driving electrode TX and the sensing electrode RX will be reduced. The touch chip 101 can determine the position of the finger touch according to the node where the capacitance is reduced. In addition, the capacitive touch screen 100 can also be touched by an active pen. The active pen can spontaneously generate an electric field and emit electric field lines. After the driving electrode TX and the sensing electrode RX receive the electric field lines of the active pen, the voltage inside the driving electrode TX and the sensing electrode RX will change. The touch chip 101 can determine the position touched by the active pen based on the voltage changes of the driving electrode TX and the sensing electrode RX.

[0033] In existing capacitive touch screens, the electric field lines at the edge of the driving electrode TX and the sensing electrode RX are relatively sparse. When a finger or an active pen moves between two adjacent driving electrodes TX, or between two adjacent sensing electrodes RX, the finger or active pen has little effect on the electric field at that location, and the touch sensor has difficulty distinguishing the signal changes caused by the movement of the finger or active pen. For example, Figure 3 The horizontal coordinate is the finger's Figure 2 The distance that the sensing electrode RX1 moves from the left to the right is shown in the figure. The vertical coordinate is the distance that the finger moves from the left to the right. Figure 2 The absolute value of the signal change amount of the signal in the sensing electrode RX1 caused by the movement of the left side of the sensing electrode RX1 to the right side shows that the difference in the signal change amount generated by the sensing electrode RX1 when the finger is located in the middle position of the sensing electrode RX1 and the position on both sides of the sensing electrode RX1 is large. When the finger is located on both sides of the sensing electrode RX1, the sensing electrode RX1 can only generate a very small signal change amount, so that when the finger is located on both sides of the sensing electrode RX1, the touch sensor is difficult to detect the accurate position of the finger. It should be understood that the touch of the touch screen can include finger touch and active pen touch. In the following embodiments of this application, finger touch is used as an example to illustrate each embodiment.

[0034] The embodiments of the present application provide an electrode applied to a capacitive touch screen to at least partially solve the above problems.

[0035] The following is combined with Figure 4-7 The electrodes for the capacitive touch screen provided in the embodiments of the present application are described in detail:

[0036] like Figure 4 As shown, an embodiment of the present application provides an electrode 200 for a capacitive touch screen, the electrode comprising a segmented electrode 210. Each segmented electrode 210 comprises a main segment 211, a transition segment 212 and a connecting segment 213 located in the same plane. The main segment 211 and the transition segment 212 are connected by the connecting segment 213, and a first transition space is formed between the connecting segment 213 and the main segment 211 and the transition segment 212 connected to the connecting segment 213. Each segmented electrode 210 may comprise a main segment 211 and at least two transition segments 212, and each transition segment 212 may be evenly distributed on both sides of the main segment 211, and a first transition space is formed on both sides of the main segment 211.

[0037] The main segment 211 and the transition segment 212 are in the shape of long strips. At least some of the segment electrodes 210 are arranged in sequence in the same plane along a direction perpendicular to the length direction of the main segment 211 . Figure 4 The length direction of each main segment 211 is the direction in which the dotted line L extends. When the arrangement positions of the two segment electrodes 210 are adjacent, the transition segment 212 of the first segment electrode 210 of the two segment electrodes 210 is at least partially located in the first transition space of the second segment electrode 210. It should be understood that the long strip shape is a shape whose length dimension is greater than the width dimension, such as a rectangle. The direction of the main segment 211 mentioned below is the length direction of the main segment 211, and the direction perpendicular to the main segment 211 is the direction perpendicular to the length direction of the main segment 211.

[0038] The main segment 211 and transition segment 212 of the segmented electrode 210 may be parallel to the long side direction or the short side direction of the rectangular touch screen. When the main segment 211 of the segmented electrode 210 is parallel to the long side direction of the rectangular touch screen, the segmented electrodes 210 may be arranged in sequence along the short side direction of the touch screen in the same plane; when the main segment 211 of the segmented electrode 210 is parallel to the short side direction of the rectangular touch screen, the segmented electrodes 210 may be arranged in sequence along the long side direction of the touch screen in the same plane. When two segmented electrodes 210 are arranged adjacently, the transition segment 212 of the first segmented electrode 210 may be located in the first transition space of the second segmented electrode 210, and the transition segment 212 of the second segmented electrode 210 may also be located in the first transition space of the first segmented electrode 210.

[0039] It should be noted that there are gaps between the transition section 212 in the first transition space and the main section 211, transition section 212 and connecting section 213 forming the first transition space, so as to prevent the transition section 212 in the first transition space from being energized or short-circuited with the main section 211, transition section 212 and connecting section 213 forming the first transition space. The gap between the transition section 212 in the first transition space and the main section 211, transition section 212 and connecting section 213 forming the first transition space can be set to be not less than 1 micron.

[0040] A touch chip may also be provided in the capacitive touch screen using the electrode provided in the embodiment of the present application. The touch chip may be connected to the end of the main segment 211 of the segmented electrode 210 through a wire, or may be connected to the connecting segment 213 connected to the end of the main segment 211, or may be connected to other suitable positions of the segmented electrode 210. Since the segmented electrode 210 may include the main segment 211, the transition segment 212, and the connecting segment 213, the width of the segmented electrode 210 in the direction perpendicular to the main segment 211 may be the sum of the widths of the main segment 211, the transition segment 212, and the first transition space, so that the segmented electrode 210 may have a larger width in the direction in which it is arranged, thereby reducing the number of electrodes used in the touch screen, and the number of wires used to connect the touch chip to the segmented electrode 210 may be reduced accordingly, so that fewer wires may be arranged in the touch screen frame, so as to reduce the width of the touch screen frame, increase the proportion of the touch screen display area, and improve the visual effect of the touch screen display. Furthermore, compared with a solution of directly removing some electrodes to reduce the number of electrodes, the segmented electrode in the embodiment of the present application can sense touch with the help of the transition segment in addition to the main segment, which can relatively improve the resolution of touch recognition.

[0041] Figure 6 The horizontal axis is the finger's Figure 5 The distance from the left side of the transition section 212' shown to the right side is represented by the ordinate. Figure 5 As shown in the figure, the absolute value of the signal change amount of the current / voltage signal in the transition section 212' caused by the movement of the left side to the right side of the transition section 212' shows that the difference between the signal change amount generated by the transition section 212' when the finger is located in the middle position of the transition section 212' and when the finger is located on both sides of the transition section 212' is small. When the finger is located on both sides of the transition section 212', the transition section 212' can also generate a larger signal change amount, so that when the finger is located on both sides of the transition section 212', the touch sensor can also accurately detect the position of the finger.

[0042] In some optional embodiments, the electrodes may include driving electrodes and sensing electrodes, and the capacitive touch screen detects touch using mutual capacitance detection. In addition, one of the driving electrodes and the sensing electrodes is a segmented electrode 210 , or both the driving electrodes and the sensing electrodes are segmented electrodes 210 .

[0043] It should be understood that a mutual capacitance node can be formed between the driving electrode and the sensing electrode. At least one of the driving electrode and the sensing electrode can be a segmented electrode 210. For example, when the sensing electrode is a segmented electrode 210, two adjacent sensing electrodes can be interlocked, that is, the transition section 212 of one sensing electrode can be located in the transition space of another sensing electrode. It should be noted that the transition space here can be the first transition space or the second transition space below. The main section 211 and the transition section 212 of each sensing electrode can generate mutual capacitance with the driving electrode, which can increase the number of electric field lines between the sensing electrode and the driving electrode, so that the influence of the finger touch on the electric field line / mutual capacitance between the sensing electrode and the driving electrode is more obvious, thereby improving the ability of the sensing electrode to sense touch. Similarly, when the driving electrode is a segmented electrode 210, the number of electric field lines between the sensing electrode and the driving electrode can also be increased to achieve an effect similar to that when the sensing electrode is a segmented electrode 210; when both the sensing electrode and the driving electrode are segmented electrodes 210, the number of electric field lines between the sensing electrode and the driving electrode can be further increased, thereby improving the ability of the mutual capacitance node to sense touch.

[0044] In some other optional embodiments, the capacitive touch screen may detect touch by using a self-capacitance detection method, and the electrodes included in the capacitive touch screen do not distinguish between drive electrodes and sensing electrodes.

[0045] In some optional embodiments, when both the driving electrodes and the sensing electrodes are segmented electrodes 210 , the driving electrodes and the sensing electrodes may be located in different planes.

[0046] For example, when both the driving electrodes and the sensing electrodes are segmented electrodes 210, the driving electrodes and the sensing electrodes can be arranged on two planes parallel to the surface of the touch screen, respectively, in the horizontal direction or in the vertical direction of the touch screen, and as shown in FIG. Figure 7 As shown, the orthographic projection of the driving electrode TX' on the plane where the sensing electrode RX' is located may intersect with the sensing electrode RX', forming a mutual capacitance node at the intersection of the orthographic projections, so that the touch on the touch screen can be detected by the capacitance change of the mutual capacitance node.

[0047] In the embodiment of the present application, when both the driving electrode and the sensing electrode are segmented electrodes 210, the driving electrode and the sensing electrode are arranged in different planes, so that the orthographic projection of the driving electrode on the plane where the sensing electrode is located can intersect with that of the sensing electrode, and a mutual capacitance node is formed between the driving electrode and the sensing electrode, so as to detect the touch on the touch screen through the capacitance change of the mutual capacitance node. In addition, since the driving electrodes can transition through the transition section 212, and the sensing electrodes can also transition through the transition section 212, two adjacent mutual capacitance nodes can intersect through the transition section 212 of the corresponding driving electrode or sensing electrode, so that the influence between the two adjacent mutual capacitance nodes can be strengthened. When there is a touch on the touch screen, the touch position can be comprehensively judged through the capacitance change of multiple mutual capacitance nodes, thereby improving the accuracy of touch detection.

[0048] In some other optional embodiments, when the driving electrodes and the sensing electrodes are both segmented electrodes 210 , the driving electrodes and the sensing electrodes may also be located in the same plane. The embodiment of the present application does not limit the positional relationship between the driving electrodes and the sensing electrodes.

[0049] In the embodiment of the present application, the segmented electrode 210 includes a main section 211, a transition section 212 and a connecting section 213 located in the same plane; the main section 211 and the transition section 212 are connected by the connecting section 213; a first transition space is formed between the connecting section 213 and the main section 211 and the transition section 212 connected to the connecting section 213; the main section 211 and the transition section 212 are long strips; at least part of the multiple segmented electrodes 210 are arranged in sequence in the same plane along a direction perpendicular to the main section 211; and when the arrangement positions of two segmented electrodes 210 are adjacent, the transition section 212 of the first segmented electrode 210 of the two segmented electrodes 210 is at least partially located in the first transition space of the second segmented electrode 210, and the two adjacent segmented electrodes 210 can be transitioned through the transition section 212. Electric field lines originating from the main segment 211 and the transition segment 212 of a segment electrode 210 may coexist between the main segment 211 and the transition segment 212, so that there is a high density of electric field lines between the main segment 211 and the transition segment 212 of the segment electrode 210. When a finger is located in the area between two adjacent segment electrodes 210, it will be located between the main segment 211 and the transition segment 212 of at least one segment electrode 210. At this time, the finger may be in the area with a high density of electric field lines, which can have a greater impact on the electric field lines in the area, so that the touch sensor can accurately detect the position of the finger based on the change in the electric field.

[0050] In some optional embodiments, the main segment 211 and the transition segment 212 may be located on the same side of the connecting segment 213 to form a first transition space. The main segment 211, the transition segment 212 and the connecting segment 213 of the same segment electrode 210 are parallel to each other; and when multiple segment electrodes 210 are arranged in sequence in the same plane along a direction perpendicular to the length direction of the main segment 211, the main segments 211 of the multiple segment electrodes 210 are parallel to each other.

[0051] In the embodiment of the present application, the main segment 211, transition segment 212 and connection segment 213 of each segmented electrode 210 can be parallel to each other, and when multiple segmented electrodes 210 are arranged in sequence in the same plane along a direction perpendicular to the length direction of the main segment 211, the main segments 211 of the multiple segmented electrodes 210 are parallel to each other, which can be beneficial to the arrangement of the segmented electrodes 210. In addition, since the shape of the touch screen is usually a rectangle with two sets of opposite sides parallel to each other, the segmented electrode 210 in the embodiment of the present application can more effectively utilize the electrode arrangement space in the rectangular touch screen, thereby improving the space utilization rate of the touch screen.

[0052] In some optional embodiments, the segmented electrode 210 includes N transition segments 212, and the main segment 211 is located in the middle of the N transition segments 212; and the width of the main segment 211 is greater than that of the transition segment 212. Wherein, N is an even number, for example, N is 2. Figure 8 As shown, when N is greater than 2, a first transition space 2101 is formed between the connecting section 213 and the main section 211 and the transition section 212 connected to the connecting section 213, two adjacent transition sections 212 located on the same side of the main section 211 can be connected through the connecting section 213, and a second transition space 2102 is formed between the connecting section 213 and the two adjacent transition sections 212 connected to the connecting section 213. Similar to the first transition space 2101, the second transition space 2102 also has an opening, and the opening of the second transition space 2102 and the connecting section 213 forming the second transition space 2102 are respectively located on opposite sides of the second transition space 2102.

[0053] It should be understood that the width of the main segment 211 can be understood as the size of the main segment 211 in a direction perpendicular to the main segment 211, and the width of the transition segment 212 can be understood as the size of the transition segment 212 in a direction perpendicular to the main segment 211. By setting the width of the main segment 211 to be greater than the width of the transition segment 212, the main segment 211 and the transition segment 212 can generate electric fields of different strengths, so that the main segment 211 and the transition segment 212 can be distinguished when the touch screen is touched, thereby more accurately detecting the touched position.

[0054] By setting N to an even number, the transition segments 212 can be evenly distributed on both sides of the main segment 211, so that the main segment 211 has a similar effect on the transition segments 212 on both sides thereof, so that the transition segments 212 on both sides of the main segment 211 have a relatively consistent detection capability, so that the segmented electrode 210 can detect touches on both sides thereof in a balanced manner. Of course, in other optional embodiments of the present application, N can also be an odd number, which is within the protection scope of the embodiments of the present application.

[0055] Similar to the connection between the main segment 211 and the transition segment 212, two adjacent transition segments 212 located on the same side of the main segment 211 are connected by a connecting segment 213, and a second transition space 2102 is formed between the connecting segment 213 and the two adjacent transition segments 212 connected to the connecting segment 213. When the arrangement positions of the two segment electrodes 210 are adjacent, the transition segment 212 of one of the two segment electrodes 210 can be at least partially located in the second transition space 2102 of the other segment electrode 210. For example, if N is 4, one end of the main segment 211 can be connected to four transition segments 212 respectively through the connecting segment 213 to form a comb-like structure. If the first transition segment 212 and the second transition segment 212 of a segmented electrode 210 are located on the same side of the main segment 211, and the distance between the first transition segment 212 and the main segment 211 is greater than the distance between the second transition segment 212 and the main segment 211, then the first transition segment 212 of the segmented electrode 210 can be set in the second transition space 2102 of another segmented electrode 210, and the second transition segment 212 of the segmented electrode 210 can be set in the first transition space 2101 of another segmented electrode 210.

[0056] A second transition space 2102 is formed between the connecting segment 213 and two adjacent transition segments 212 connected to the connecting segment 213. When the arrangement positions of the two segmented electrodes 210 are adjacent, the transition segment 212 of one of the two segmented electrodes 210 can be at least partially located in the second transition space 2102 of the other segmented electrode 210, so that the two adjacent segmented electrodes 210 can transition through more transition segments 212 and transition spaces, thereby making the transition between the two segmented electrodes 210 more balanced, avoiding a large difference in the density of the electric field lines between the two adjacent segmented electrodes 210, thereby affecting the ability of the segmented electrodes 210 to sense touch.

[0057] like Fig. 9As shown, in some optional embodiments, when N is greater than 2, in the transition section 212 of the segmented electrode 210 located on the same side of the main section 211, if the distance between the first transition section 2121 and the main section 211 is smaller than the distance between the second transition section 2122 and the main section 211, the width of the first transition section 2121 in the direction perpendicular to the main section 211 is greater than the width of the second transition section 2122. Exemplarily, the width of the main section 211 in the segmented electrode 210 may be 3 mm, the width of the first transition section 2121 may be 1.2 mm, and the width of the second transition section 2122 may be 0.8 mm.

[0058] In the embodiment of the present application, by setting the distance between the first transition section 2121 and the main section 211 to be smaller than the distance between the second transition section 2122 and the main section 211 in the transition section 212 of the segmented electrode 210 located on the same side of the main section 211, the width of the first transition section 2121 can be greater than the width of the second transition section 2122, that is, the width of the transition section 212 can be set to increase as the distance between the transition section 212 and the main section 211 decreases, so that the transition section 212 close to the main section 211 can generate a stronger electric field, so as to distinguish the segmented electrode 210 of the transition section 212, so that the touch position can be detected more accurately when detecting touch.

[0059] In some other optional embodiments, the widths of the N transition sections 212 may be the same. By setting the widths of the N transition sections 212 to be the same, the manufacture and installation of the segmented electrode 210 may be facilitated, which is beneficial to reducing the production cost of the segmented electrode 210 and improving the manufacturing efficiency of the segmented electrode 210.

[0060] In some optional embodiments, the spacing between the second transition section 2122 located in the first transition space 2101 and the main section 211 and the transition section 212 forming the first transition space 2101 is smaller than the width of the second transition section 2122. And / or, the spacing between the fourth transition section 2124 located in the second transition space 2102 and two adjacent transition sections 212 forming the second transition space 2102 is smaller than the width of the fourth transition section 2124.

[0061] It should be noted that there may be a gap between the transition section 212 disposed in the first / second transition space 2102 and the edge of the transition space. The gap range is the blank area outside the segmented electrode 210 body, and the sensitivity to touch is weaker than the area where the segmented electrode 210 body is located, so the smaller the gap is, the better. It should be understood that the gap between the second transition section 2122 located in the first transition space 2101 and the main section 211 and the transition section 212 forming the first transition space 2101 can be understood as the size of the blank area between the two sides of the second transition section 2122 and the first transition space 2101 in the direction perpendicular to the main section 211. The gap between the fourth transition section 2124 located in the second transition space 2102 and the main section 211 and the transition section 212 forming the second transition space 2102 can be understood as the size of the blank area between the two sides of the fourth transition section 2124 and the second transition space 2102 in the direction perpendicular to the main section 211. The width of the second transition section 2122 is the dimension of the second transition section 2122 in the direction perpendicular to the main section 211 , and the width of the fourth transition section 2124 is the dimension of the fourth transition section 2124 in the direction perpendicular to the main section 211 .

[0062] In the embodiment of the present application, the spacing between the second transition section 2122 located in the first transition space 2101 and the main section 211 and the transition section 212 that form the first transition space 2101 can be set to be smaller than the width of the second transition section 2122; and the spacing between the fourth transition section 2124 located in the second transition space 2102 and the two adjacent transition sections 212 that form the second transition space 2102 can be set to be smaller than the width of the fourth transition section 2124 in the direction perpendicular to the main section 211, thereby limiting the width of the blank area between two adjacent segmented electrodes 210 to avoid affecting the ability of the segmented electrode 210 to detect touch when the blank area is wider.

[0063] like Figure 7 As shown, in some optional embodiments, the main section 211, the transition section 212 and the connecting section 213 include a plurality of grid lines, and grid through holes are provided between adjacent grid lines. The first transition space formed by the main section 211, the transition section 212 and the connecting section 213 may have an opening, and the opening of the first transition space and the connecting section 213 may be located at opposite sides of the first transition space, respectively.

[0064] The main section 211, transition section 212 and connection section 213 of the segmented electrode 210 may be a grid structure composed of grid lines. The grid lines may be metal oxides such as ITO (Indium tin oxide) or metal materials such as copper and silver, or other suitable conductive materials, all of which are within the protection scope of the embodiments of the present application. The line width of the grid line may be 1 to 5 um. If the grid line needs to be disconnected, the spacing between two parallel grid lines at the disconnection position may be 1 to 1000 um. Providing an opening in the first transition space allows the transition section 212 of a segmented electrode 210 to pass through the opening of the first transition space of another segmented electrode 210 and extend into the first transition space of another segmented electrode 210, which can facilitate the arrangement of the segmented electrodes 210.

[0065] In the embodiment of the present application, the main segment 211, the transition segment 212 and the connecting segment 213 include a plurality of grid lines, and grid through holes are formed between adjacent grid lines. The grid through holes can allow the main segment 211, the transition segment 212 and the connecting segment 213 to transmit light, so that when the light-emitting unit of the touch screen is located under the segmented electrode 210, the light emitted by the light-emitting unit can be transmitted to the outside of the touch screen through the grid through holes of the segmented electrode 210, thereby reducing the influence of the segmented electrode 210 on the display of the touch screen.

[0066] In other optional embodiments, the main section 211, the transition section 212 and the connecting section 213 may be a transparent conductive film, such as an ITO film, etc., to facilitate light transmission. When the main section 211, the transition section 212 and the connecting section 213 are arranged at a position where light transmission is not required, the main section 211, the transition section 212 and the connecting section 213 may also be an opaque metal layer.

[0067] The embodiment of the present application further provides a capacitive touch screen, comprising the electrode 200 applied to the capacitive touch screen as described in any one of the above items.

[0068] The capacitive touch screen provided in the embodiment of the present application and the embodiment of the electrode 200 applied to the capacitive touch screen described above are based on the same inventive concept and can achieve the same effect. The specific implementation method of the capacitive touch screen can refer to the description in the embodiment of the electrode 200 applied to the capacitive touch screen described above, which will not be repeated here.

[0069] An embodiment of the present application further provides an electronic device, which includes the capacitive touch screen as described in the above embodiment.

[0070] For example, the electronic device in the embodiment of the present application can be a mobile device such as a smart phone, a tablet computer, or a wearable device such as a smart watch, a smart bracelet, etc. The electronic device provided in the embodiment of the present application is based on the same inventive concept as the embodiment of the electrode 200 applied to a capacitive touch screen, and can achieve the same effect. The specific implementation of the electronic device can refer to the description in the embodiment of the electrode 200 applied to a capacitive touch screen, and will not be repeated here.

[0071] It should be pointed out that, according to the needs of implementation, the various components / steps described in the embodiments of the present application can be split into more components / steps, or two or more components / steps or partial operations of components / steps can be combined into new components / steps to achieve the purpose of the embodiments of the present application.

[0072] Those of ordinary skill in the art will appreciate that the units and method steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present application.

[0073] The above implementation methods are only used to illustrate the embodiments of the present application, and are not limitations on the embodiments of the present application. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present application. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present application. The scope of patent protection of the embodiments of the present application should be limited by the claims.

Claims

1. An electrode for a capacitive touch screen, characterized in that: including a plurality of segmented electrodes; The segmented electrode includes a main section, a transition section and a connecting section located in the same plane; the main section and the transition section are connected by the connecting section; a first transition space is formed between the connecting section and the main section and the transition section connected to the connecting section; the main section and the transition section are in the shape of long strips; at least some of the multiple segmented electrodes are arranged in sequence in the same plane along a direction perpendicular to the length direction of the main section; when the arrangement positions of two segmented electrodes are adjacent, the transition section of the first of the two segmented electrodes is at least partially located in the first transition space of the second segmented electrode.

2. The electrode according to claim 1, characterized in that The main segment and the transition segment are located on the same side of the connecting segment; the main segment, the transition segment and the connecting segment of the same segmented electrode are parallel to each other; and when a plurality of the segmented electrodes are arranged sequentially in the same plane along a direction perpendicular to the length direction of the main segment, the main segments of the plurality of the segmented electrodes are parallel to each other.

3. The electrode according to claim 2, characterized in that The segmented electrode comprises N transition segments, and the main segment is located in the middle of the N transition segments; and the width of the main segment is greater than that of the transition segment; Wherein, N is an even number. When N is greater than 2, two adjacent transition sections located on the same side of the main section are connected through the connecting section, and a second transition space is formed between the connecting section and the two adjacent transition sections connected to the connecting section.

4. The electrode according to claim 3, characterized in that When N is greater than 2, in the transition segments of the segmented electrode located on the same side of the main segment, if the distance between the first transition segment and the main segment is smaller than the distance between the second transition segment and the main segment, the width of the first transition segment is greater than the width of the second transition segment.

5. The electrode according to claim 3, characterized in that The widths of the N transition sections are the same.

6. The electrode according to claim 3, characterized in that The distance between the third transition section located in the first transition space and the main section and the transition section forming the first transition space is smaller than the width of the third transition section; and / or, The distance between the fourth transition section located in the second transition space and two adjacent transition sections forming the second transition space is smaller than the width of the fourth transition section.

7. The electrode according to any one of claims 1 to 6, characterized in that The electrodes include driving electrodes and sensing electrodes; and, One of the driving electrode and the sensing electrode is the segmented electrode, or both the driving electrode and the sensing electrode are the segmented electrodes.

8. The electrode according to claim 7, characterized in that When the driving electrodes and the sensing electrodes are both segmented electrodes, the driving electrodes and the sensing electrodes are located in different planes.

9. The electrode according to claim 1, characterized in that The main body section, the transition section and the connecting section include a plurality of grid lines, and grid through holes are formed between adjacent grid lines; The first transition space formed by the main body section, the transition section and the connecting section has an opening, and the opening of the first transition space and the connecting section are respectively located on two opposite sides of the first transition space.

10. A capacitive touch screen, characterized in that: The invention comprises an electrode applied to a capacitive touch screen as claimed in any one of claims 1 to 9.

11. An electronic device, characterized in that: It comprises the capacitive touch screen as claimed in claim 10.

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