Electronic device and touch display screen thereof

Abstract

The application discloses an electronic device and a touch display screen thereof. The electronic device comprises a display area and a frame area surrounding at least part of the display area. The touch display screen comprises a display component, a touch component arranged on the light-emitting side of the display component, a touch electrode and a binding area arranged on the side of the touch component facing the display component, a solder pad connected with the touch electrode arranged in the binding area, the touch electrode being arranged in the display area and the binding area being arranged in the frame area, a connecting member having a signal pin and a grounding pin, the signal pin being fixedly connected with the solder pad, a shielding member arranged between the display component and the touch component, and a part of the grounding pin being arranged outside the binding area in the direction perpendicular to the display component to connect the shielding member.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and more specifically, to an electronic device and its touch display screen. Background Technology

[0002] With the continuous development of science and technology, more and more electronic devices with display functions are being widely used in people's daily lives and work, bringing great convenience and becoming an indispensable tool for people today. The main component of electronic devices that realizes the display function is the display screen. To facilitate human-computer interaction, touch screens with touch display functions are currently the mainstream products.

[0003] Currently, a common type of touch display screen includes a display component and a touch component located on the light-emitting side of the display component. In this type of touch display screen, the touch component is directly placed on the light-emitting side of the display component. The touch component and display component can be manufactured separately without altering the structure of the display component, resulting in a relatively simple manufacturing process. However, in this type of touch display screen, the touch component is susceptible to interference, affecting touch accuracy. Summary of the Invention

[0004] In view of this, this application provides an electronic device and its touch display screen, the solution of which is as follows:

[0005] A touch display screen includes a display area and a border area surrounding at least a portion of the display area, the touch display screen comprising:

[0006] Display components;

[0007] A touch component is disposed on the light-emitting side of the display component; a touch electrode and a bonding area are disposed on the side of the touch component facing the display component, and a pad connected to the touch electrode is disposed in the bonding area; the touch electrode is located in the display area, and the bonding area is located in the bezel area;

[0008] A connector having a signal pin and a ground pin; the signal pin is fixedly connected to the pad.

[0009] A shield is provided between the display component and the touch component; in a direction perpendicular to the display component, a portion of the ground pin is located outside the bonding area to connect to the shield.

[0010] Preferably, in the above-mentioned touch display screen, the touch component includes:

[0011] Translucent cover plate;

[0012] A touch layer located on the side of the light-transmitting cover plate facing the display component, the touch layer including the touch electrodes;

[0013] A first light-shielding layer is located on the side of the touch layer opposite to the light-transmitting cover plate; the first light-shielding layer is located within the frame area;

[0014] The shielding element is located on the side of the first light-shielding layer facing the display component.

[0015] Preferably, in the above-mentioned touch display screen, the first light-shielding layer is a conductive material;

[0016] The shielding component is a light-transmitting conductive adhesive that bonds and fixes the display component and the touch component, and the grounding pin is connected to the shielding component through the first light-shielding layer.

[0017] Preferably, in the above-described touch display screen, the pad is located on the side of the touch layer facing the display component, and the pad is insulated from the first light-shielding layer.

[0018] Preferably, in the above-mentioned touch display screen, the first light-shielding layer is an insulating material;

[0019] The shielding component is a light-transmitting conductive layer that isolates the touch layer from the display component; the light-transmitting conductive layer is located between the first light-shielding layer and the touch layer, and the light-transmitting conductive layer has a first hollow area that exposes the bonding area; the portion of the grounding pin extending outside the bonding area is connected to the light-transmitting conductive layer;

[0020] The touch component is bonded and fixed to the display component by an insulating optical adhesive located on the side of the light-transmitting conductive layer facing the display component.

[0021] Preferably, in the above-mentioned touch display screen, the light-transmitting conductive layer is a metal mesh structure, or a light-transmitting metal oxide, or a light-transmitting metal film.

[0022] Preferably, in the above-mentioned touch display screen, the portion of the grounding pin located outside the bonding area is connected to the light-transmitting conductive layer via conductive adhesive.

[0023] Preferably, in the above-mentioned touch display screen, the signal pin has a first size, and the ground pin has a second size, the second size being larger than the first size.

[0024] Preferably, in the above-mentioned touch display screen, a dummy pad is provided in the bonding area corresponding to the position of the ground pin. The dummy pad is used to connect with the part of the ground pin located in the bonding area, and the dummy pad and the pad are flush.

[0025] This application also provides an electronic device including any of the above-described touch displays.

[0026] As described above, the electronic device and its touch display screen provided in this application have a shielding component between the display component and the touch component. The grounding pin of the connector extends beyond the bonding area to connect to the shielding component, thus grounding it. This allows for electromagnetic signal isolation between the display component and the touch component, solving the signal interference problem between them. Furthermore, the shielding component, connected to the connector, is grounded, allowing it to release static electricity from the external environment and preventing electrostatic interference from the external environment from affecting the touch component. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0029] Figure 1 This is a schematic diagram of the structure of a touch display screen provided in an embodiment of this application;

[0030] Figure 2 for Figure 1 A top view of the touch components in the touch display screen shown;

[0031] Figure 3 A top view of a connector provided in an embodiment of this application;

[0032] Figure 4 Top view showing the connectors fixedly attached to the bonding area;

[0033] Figure 5 This is a schematic diagram of the structure of a touch component provided in an embodiment of this application;

[0034] Figure 6 for Figure 5 The diagram shows the connection principle between the touch component and the connector.

[0035] Figure 7This is a schematic diagram of another touch component provided in an embodiment of this application;

[0036] Figure 8 for Figure 7 The diagram shows the connection principle between the touch component and the connector.

[0037] Figure 9 This application provides a schematic diagram illustrating the connection principle between a connector and a binding area in an embodiment of the present application.

[0038] Figure 10 This is a schematic diagram of another touch display screen provided in an embodiment of this application;

[0039] Figure 11 for Figure 10 Top view of the shielding component in the touchscreen display shown;

[0040] Figure 12 for Figure 10 A top view of the first light-shielding layer in the touch display screen shown;

[0041] Figure 13 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0042] The embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0043] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] refer to Figures 1-4 As shown, Figure 1 This is a schematic diagram of the structure of a touch display screen provided in an embodiment of this application. Figure 2 for Figure 1 The top view of the touch component in the touch display shown. Figure 3 This is a top view of a connector provided in an embodiment of this application. Figure 4 A top view showing the connector securely attached to the bonding area. The touch display includes a display area AA and a border area BB surrounding at least a portion of the display area AA. The touch display includes:

[0045] Display component 12;

[0046] A touch component 11 is disposed on the light-emitting side of the display component 12; a touch electrode 21 and a bonding area 22 are disposed on the side of the touch component 11 facing the display component 12, and a pad 23 connected to the touch electrode 21 is disposed in the bonding area 22; the touch electrode 21 is located in the display area AA, and the bonding area 22 is located in the border area BB;

[0047] Connector 14 has a signal pin P1 and a ground pin P2; the signal pin P1 is fixedly connected to the pad 23;

[0048] A shielding member 13 is provided between the display component 12 and the touch component 11; in a direction perpendicular to the display component 12, a portion of the ground pin P2 (the ground pin P2 is located at...) Figure 4 The portion within the area indicated by the dashed ellipse is located outside the binding area 22 to connect to the shield 13.

[0049] In the technical solution of this application embodiment, a shielding member 13 is provided between the display component 12 and the touch component 11 of the touch screen, and the grounding pin P2 of the connector 14 is provided to extend beyond the bonding area 22 for connecting to the shielding member 13, thereby grounding the shielding member 13. This allows for electromagnetic signal isolation between the display component 12 and the touch component 11 through the shielding member 13 located between them, solving the signal interference problem between the display component 12 and the touch component 11. Furthermore, the shielding member 13, by connecting to the connector 14, is grounded, allowing it to release static electricity from the external environment and preventing static interference from the external environment from affecting the touch component 11.

[0050] Although connecting the shield 13 to the grounding terminal in the bonding area 22 via a lead wire and connecting the grounding terminal of the shield 13 to the grounding pin P2 in the connector 14 can also achieve the connection between the shield 13 and the connector 14, so as to connect the system ground through the connector 14, this method requires setting up a lead wire connecting the shield 13 and the grounding terminal. Moreover, the lead wire is on a different layer from the shield 13. The lead wire and the shield 13 need to be connected through a conductive hole. A separate metal layer patterning process is required to prepare the lead wire. A drilling process is also required to connect the lead wire and the shield 13, which results in a higher manufacturing cost.

[0051] In this embodiment, the shield 13 is connected to the ground pin P2 by extending the ground pin P2 to the portion outside the bonding area 22, so as to be grounded through the connector 14, without the need to connect the shield 13 to the grounding terminal lead.

[0052] like Figure 3As shown, the signal pin P1 has a first size, and the ground pin P2 has a second size, the second size being larger than the first size.

[0053] The second dimension is larger than the first dimension, including the length of the ground pin P2 being greater than the length of the signal pin P1, so that after the connector 14 is fixed to the bonding area 22, a portion of the ground pin P2 can extend beyond the bonding area 22. The length is equal to the length of the pin in the connector 14 in the first direction ( Figure 3 The dimension in the vertical direction, the first direction being perpendicular to the pin arrangement direction in connector 14. Figure 3 (Horizontal direction), this arrangement direction is the second direction.

[0054] The second dimension being larger than the first dimension also includes the fact that the width of the ground pin P2 is greater than the width of the signal pin P1, so that the ground pin P2 has a larger contact area, reducing contact impedance and improving the reliability and stability of the grounding connection. The width is the dimension of the pin in the connector 14 in the second direction. The width of the ground pin P2 can be set to be twice the width of the signal pin P1.

[0055] Optionally, the connector 14 is a flexible printed circuit board (FPC). In the connector 14, the length of the grounding pin P2 extending beyond the bonding area 22 is in the range of 2mm-3mm. Within this range, not only can the portion of the grounding pin P2 extending beyond the bonding area 22 have sufficient electrical connection area to ensure the stability and reliability of the electrical connection between this portion and other conductive structures, but it can also prevent the length of this portion from being too large, which would increase the width of the touch display bezel.

[0056] like Figure 2 As shown, to avoid touch blind spots, the boundary of the touch electrode 21 is set ( Figure 2 The dashed box is located within the border area BB, thus enabling touch detection to be performed on the entire display area AA.

[0057] The connector 14 has multiple signal pins P1, which have the same first dimension, that is, each signal pin P1 has the same length and the same width.

[0058] like Figure 2As shown, within the bonding area 22, a dummy pad 24 is provided corresponding to the position of the grounding pin P2. The dummy pad 24 is used to connect with the portion of the grounding pin P2 located in the bonding area 22, and the dummy pad 24 and the pad 23 are flush. The dummy pad 24 is used to improve the surface flatness of the bonding area 22 and support the area of ​​the connector 14 corresponding to the grounding pin P2, so as to facilitate the connection and fixation of the connector 14. As mentioned above, this application does not require the shield 13 to connect to the bonding area 22 via a lead wire, so the dummy pad 24 has no electrical connection. The dummy pad 24 can be a conductive structure or a non-conductive structure. If the dummy pad 24 is a conductive structure, the reliability of the connection between the dummy pad 24 and the grounding pin P2 has little or no impact on the grounding effect.

[0059] Optionally, the pseudo pad 24 can be manufactured using the same process as the pad 23, belonging to the same metal layer, to facilitate manufacturing. In the bonding area 22, all pads 23 have the same size and are adapted to the first size to facilitate connection and fixation with the signal pin P1.

[0060] When a dummy pad 24 is provided in the bonding area 22, the length of the dummy pad 24 is the same as the length of the pad 23, so that both the dummy pad 24 and the pad 23 are located within the bonding area 22. The width of the dummy pad 24 is greater than the width of the pad 23 to accommodate the second size, thereby achieving a more stable support effect for the ground pin P2.

[0061] refer to Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of a touch component provided in an embodiment of this application. Figure 5 for Figure 2 The cross-sectional view along the A-A' direction, combined with Figures 1-5 As shown, the touch component 11 includes: a light-transmitting cover plate 111; a touch layer 112 located on the side of the light-transmitting cover plate 111 facing the display component 12, the touch layer 112 including the touch electrode 21; a first light-shielding layer 114 located on the side of the touch layer 112 away from the light-transmitting cover plate 111; the first light-shielding layer 114 is located within the frame area BB.

[0062] The shielding element 13 is located at least on the side of the touch layer 112 facing the display component 12.

[0063] The touch layer 112 has a first insulating layer 1 on the side facing the display assembly 12, and a second insulating layer 2 between the touch cavity layer 112 and the light-transmitting cover plate 111. The touch layer 112 includes a first touch electrode layer M1 and a second touch electrode layer M2 disposed opposite to each other, each including a touch driving electrode and a touch detection electrode. A third insulating layer 3 is located between the first touch electrode layer M1 and the second touch electrode layer M2. Both the first touch electrode layer M1 and the second touch electrode layer M2 are patterned structures to form the desired electrode pattern.

[0064] The boundaries of the first touch electrode layer M1 and the second touch electrode layer M2 are located within the border area BB, so that the touch layer 112 completely covers the display area AA, avoiding touch blind spots. The boundary positions of each touch electrode layer in the touch layer 112 can be set according to requirements. The cross-sectional view shown in the following embodiment is mainly to illustrate the connection structure between the bonding area 22 and the connector 14. The boundaries of the touch electrode layers are located within the border area BB, and can be flush with the outer boundary of the border area BB or located between the inner and outer boundaries of the border area BB.

[0065] The touch electrode 21 in the touch layer 112 can be electrically connected to the pad 23 in the bonding area 22 through the touch signal line and the conductive via. This application embodiment does not specifically limit this.

[0066] The bonding area 22 includes a circuit sub-board of a predetermined size, with pads 23 disposed on the surface of the circuit sub-board facing away from the light-transmitting cover plate 111. When dummy pads 24 are present, the dummy pads 24 and the pads 23 are disposed on the same surface of the circuit sub-board.

[0067] The touch component 11 also includes a second light-shielding layer 113 disposed between the light-transmitting cover 111 and the second insulating layer 2. Both the first light-shielding layer 114 and the second light-shielding layer 113 are located within the frame area BB. The wiring in the frame area BB and the bonding area 22 are blocked by the first light-shielding layer 114 and the second light-shielding layer 113.

[0068] It should be noted that the embodiments of this application use a touch component 11 with a double-layer touch layer structure for illustration. Obviously, the structure of the touch component 11 is not limited to a double-layer touch layer structure, and can also be a single-layer touch layer structure. The embodiments of this application do not limit the specific implementation of the touch component 11.

[0069] The second light-shielding layer 113 is black insulating ink, which can be formed in the area corresponding to the frame area BB around the light-transmitting cover plate 111 by coating or printing processes.

[0070] refer to Figure 6 , Figure 6 for Figure 5 The diagram shows the connection principle between the touch component and the connector. The first light-shielding layer 114 is made of conductive material. The shielding component 13 is a light-transmitting conductive adhesive that bonds and fixes the display component 12 and the touch component 11. The grounding pin P2 is connected to the shielding component 13 through the first light-shielding layer 114.

[0071] exist Figure 6 In the illustrated configuration, the first light-shielding layer 114 is a conductive material, which can be black conductive ink, and is disposed around the perimeter of the touch component 11 corresponding to the frame area BB. For example... Figure 6 In the area indicated by the dashed ellipse, since part of the grounding pin P2 is located outside the bonding area 22, this part of the grounding pin P2 can connect to the conductive material outside the bonding area 22. A transparent conductive adhesive is used as the shielding component 13. This transparent conductive adhesive can directly contact the conductive material at the surrounding edges, thereby achieving an electrical connection with the grounding pin P2 in the connector 14. Simultaneously, the shielding component 13 can be reused to bond and fix the display assembly 12 and the touch assembly 11.

[0072] When the first light-shielding layer 114 is a conductive material, it can be as follows: Figure 5 and Figure 6 As shown, the touch layer 112 has a first insulating layer 1 on the side facing the display component 12, and a first light-shielding layer 114 is located on the side of the first insulating layer 1 facing the display component 12. The surface of the first insulating layer 1 facing the display component 11 has a preset area for fixing the circuit sub-board 20 to form a bonding area 22. The first light-shielding layer 114 has an opening in the area corresponding to the bonding area 22 to expose the bonding area 22.

[0073] exist Figure 6 In the illustrated configuration, pad 23 can be soldered to signal pin P1 or bonded with conductive adhesive. The portion of ground pin P2 outside the bonding area 22 can be bonded to the first light-shielding layer 114 with conductive tape. The portion of ground pin P2 within the bonding area 22 is bonded to the corresponding area of ​​the bonding area 22. When a dummy pad 24 is present, the portion of ground pin P2 within the bonding area 22 is bonded to the dummy pad 24.

[0074] When the first light-shielding layer 114 is a conductive material, in order to achieve insulation between the pad 23 and the first light-shielding layer 114, it can also be as follows: Figure 7 and Figure 8 As shown.

[0075] refer to Figure 7 and Figure 8 As shown, Figure 7 This is a schematic diagram of another touch component provided in an embodiment of this application. Figure 7 Similarly, it can be Figure 2 Cross-sectional view along the A-A' direction, Figure 8 for Figure 7The diagram illustrates the connection principle between the touch component and the connector. The pad 23 is located on the side of the first light-shielding layer 114 facing the display component 12, and the pad 23 is insulated from the first light-shielding layer 114. Specifically, the bonding area 22 is located on the side of the first light-shielding layer 114 facing the display component 12. A circuit sub-board 20 is provided in a local area of ​​the surface of the first light-shielding layer 114 facing the display component 12. This circuit sub-board 20 serves as the bonding area 22, and the pad 23 is provided on the surface of the circuit sub-board 20 facing the display component 12. Alternatively, conductive adhesive can be used to fix and bond the display component 12 and the touch component 11, and the conductive adhesive can also be reused as a shielding component 13.

[0076] exist Figure 8 In the manner shown, the portion of the grounding pin P2 located outside the bonding area 22 can be bonded and fixed to the first light-shielding layer 114 by conductive tape. The conductive tape can be ordinary double-sided conductive tape or anisotropic conductive film.

[0077] like Figure 8 In the area indicated by the dashed ellipse, since part of the grounding pin P2 is located outside the bonding area 22, this part of the grounding pin P2 can connect to the conductive material outside the bonding area 22. A transparent conductive adhesive is used as the shielding component 13. This transparent conductive adhesive can directly contact the conductive material at the surrounding edges, thereby achieving an electrical connection with the grounding pin P2 in the connector 14. Simultaneously, the shielding component 13 can be reused to bond and fix the display assembly 12 and the touch assembly 11.

[0078] The pad 23 is located on the side of the touch layer 112 facing the display component 12, and the pad 23 is insulated from the first light-shielding layer 114. This can be achieved in ways including, but not limited to, […]. Figure 5 and Figure 7 As shown, the pad 23 can also be set directly on the surface of an insulating layer, eliminating the need for a circuit board 20.

[0079] refer to Figure 9 As shown, Figure 9 This is a schematic diagram illustrating the connection principle between a connector and a bonding area according to an embodiment of this application. When the first light-shielding layer 114 is a conductive material, to ensure the reliability of the electrical connection between the portion of the grounding pin P2 located outside the bonding area 22 and the first light-shielding layer 114, conductive tape 15 is used to connect and fix the portion of the grounding pin P2 located outside the bonding area 22 and the first light-shielding layer 114. The conductive tape 15 can be anisotropic conductive film (ACF) or ordinary double-sided conductive tape.

[0080] Generally, connector 14 has two grounding pins P2 and multiple signal pins P1 located between the two grounding pins P2. The conductive tape 15 can be a single long strip structure, as shown in Figure 9, with the grounding pins P2 sharing the same conductive tape 15. In other configurations, each grounding pin P2 can be individually bonded and fixed to the first light-shielding layer 114 via a section of conductive tape 15.

[0081] In the above embodiment, the first light-shielding layer 114 is made of conductive material, which directly forms a large-area electrical contact with the conductive adhesive shielding component 13 in the frame area BB. This reduces the contact resistance of the grounding path of the shielding component 13, thereby improving the performance of electromagnetic interference protection. It not only achieves isolation between the display component 12 and the touch component 11, avoiding interference between their signals and ensuring touch and display performance, but also conducts away the static electricity entering from the edge of the touch display screen through the first light-shielding layer 114 and the shielding component 13, and releases it through the grounding component 14. This avoids mis-detection of touch position caused by the influence of environmental static electricity on the touch area of ​​the touch component 11, and avoids display abnormalities caused by the influence of environmental static electricity on the display signal of the display component 12. Therefore, it can reduce the impact of environmental static electricity on touch and display performance.

[0082] The conductive adhesive shielding component 13 achieves full-area bonding and fixation of the display component 12 and the touch component 11 on their opposing surfaces. The conductive adhesive shielding component 13 is not only bonded to the display area AA, but also to the bezel area BB, with a bonding area larger than that of the display area AA. This allows it to overlap with the first light-shielding layer 114 in the bezel area BB, enabling large-area effective electrical contact between the conductive adhesive shielding component 13 and the conductive first light-shielding layer 114. The first light-shielding layer 114 is then connected to the system ground through the grounding pin P2 of the connector 14, thus forming a complete shielding structure in the display area AA and the bezel area BB, achieving a good shielding effect and effectively preventing environmental static electricity and interference between the touch component 11 and the display component 12.

[0083] In this embodiment, the antistatic structure is not limited to the first light-shielding layer 114 of conductive material and the shielding member 13 of conductive adhesive material described above, but can also be as follows: Figures 10-12 As shown.

[0084] refer to Figures 10-12 As shown Figure 10 This is a schematic diagram of another touch display screen provided in an embodiment of this application. Figure 11 for Figure 10 The top view of the shielding component in the touch display screen is shown. Figure 12 for Figure 10 The image shows a top view of the first light-shielding layer in the touchscreen display. Figure 10This is a cross-sectional view of the touch display screen. In this method, the first light-shielding layer 114 is an insulating material, such as black insulating ink.

[0085] Combination Figure 3 , Figures 10-12 As shown, the shielding member 13 is a light-transmitting conductive layer that isolates the touch layer 112 from the display component 12; the light-transmitting conductive layer is located between the first light-shielding layer 114 and the touch layer 112, and the light-transmitting conductive layer has a first hollow area 131 that exposes the bonding 22; the portion of the grounding pin P2 extending outside the bonding area 22 is connected to the light-transmitting conductive layer; the touch component 11 is bonded and fixed to the display component 12 by an insulating optical adhesive 4 located on the side of the light-transmitting conductive layer facing the display component 12.

[0086] Unlike the method described in the above embodiment where the first light-shielding layer 114 is formed first, followed by the shielding layer 13, Figures 10-12 In the method shown, the shielding layer 13 needs to be formed first, and then the first light-shielding layer 114 needs to be formed.

[0087] In this embodiment of the application, in order to cover up the undesirable morphology in the process, after the first light-shielding layer 114 is formed, an ink layer can be formed in the area of ​​the corresponding border area BB of the touch component 11.

[0088] The touch layer 112 has a first insulating layer 1 on the side facing the display component 11. A light-transmitting conductive layer is located on the surface of the first insulating layer 1 facing the display component 11. A first cutout area 131 exposes a portion of the first insulating layer 1 and is used to set the bonding area 22. Figure 12 As shown, the first light-shielding layer 114 has a second hollow area 1141. The second hollow area 1141 is used to expose the bonding 22 and a portion of the light-transmitting conductive layer adjacent to the bonding area 22. This portion of the light-transmitting conductive layer is used for electrical connection with the portion of the grounding pin P2 that extends outside the bonding area 22, thereby realizing the electrical connection between the shield 13 and the grounding pin P2 in the connector 14.

[0089] Optionally, the light-transmitting conductive layer is a conductive material with a sheet resistance of less than 300Ω. The light-transmitting conductive layer is a metal mesh structure, a light-transmitting metal oxide, or a light-transmitting metal thin film.

[0090] Optionally, the portion of the grounding pin P2 located outside the bonding area 22 is connected to the light-transmitting conductive layer via conductive adhesive.

[0091] To facilitate fabrication, connector 14 is connected and fixed to touch component 11 via an anisotropic conductive adhesive film. Using anisotropic conductive adhesive film to connect and fix connector 14 to touch component 11 not only enables electrical connection and fixation between pad 23 and corresponding signal pin P1, but also avoids short circuits between different pad channels due to the lateral insulation properties of the anisotropic conductive adhesive film. Furthermore, it allows for the connection and fixation of the portion of ground pin P2 outside the bonding area 22 to the light-transmitting conductive layer, or the connection and fixation of the portion of ground pin P2 outside the bonding area 22 to the conductive first light-shielding layer 114, eliminating the need for the aforementioned conductive tape 15.

[0092] The touch display screen described in this embodiment does not change the structure of the display component 12 or the touch layer structure in the touch component 11. Only simple adjustments are needed to the pad structure in the bonding area 22 and the pin structure in the connector 14. This changes the conventional structure where the shielding component 13 needs to be connected to the pads in the bonding area 22 via leads, improving the grounding reliability and stability of the shielding structure. Furthermore, no additional algorithms are required; a simple and practical structural improvement effectively prevents environmental static electricity and interference between the display component 12 and the touch component 11.

[0093] Figures 10-12 The method shown can achieve the same shielding effect as the above embodiments, improving the accuracy of touch detection. The implementation principle is the same as the above method, and will not be repeated here.

[0094] Based on the above embodiments, another embodiment of this application also provides an electronic device, the electronic device as follows: Figure 13 As shown.

[0095] refer to Figure 13 , Figure 13 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device includes a touch display screen 31 as described in any of the embodiments above. The electronic device can be a mobile phone, computer, or smart wearable device, or other device with touch display functionality.

[0096] In conventional electronic devices, IC touch algorithms are typically optimized to avoid interference from environmental static electricity and the display component 12 on the touch results. However, solutions based on optimized IC touch algorithms cannot effectively shield against interference to the touch results, and such solutions have many limitations, requiring the determination of parameters related to the algorithm, such as film thickness and dielectric constant (which depends on the film material). Furthermore, while short-circuiting the metal layer in the display component 12 with the touch signal lines in the touch component 11 can prevent some transmitted signals in the display component 12 from interfering with the touch component 11, this only addresses the interference from a portion of the signals in the display component 12.

[0097] In the technical solution of this application, the electronic device adopts the aforementioned touch display screen. The shielding component 13 achieves good electromagnetic isolation between the display component 12 and the touch component 11 without altering the structure of the display component 12 or the touch layer structure in the touch component 11. Only simple adjustments are needed to the pad structure in the bonding area 22 and the pin structure in the connector 14. This changes the conventional structure where the shielding component 13 needs to be connected to the pads in the bonding area 22 via leads, improving the grounding reliability and stability of the shielding structure. Furthermore, no additional algorithms are required; a simple and practical structural improvement effectively prevents environmental static electricity and interference between the display component 12 and the touch component 11, improving touch accuracy.

[0098] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on its differences from other embodiments, and similar or identical parts between embodiments can be referred to interchangeably. For the electronic devices disclosed in the embodiments, since they correspond to the touch screens disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the corresponding sections of the touch screen description.

[0099] It should be noted that, in the description of this application, the accompanying drawings and embodiments are illustrative rather than restrictive. The same reference numerals throughout the embodiments identify the same structures. Additionally, for ease of understanding and description, the thicknesses of some layers, films, panels, regions, etc., may be exaggerated in the drawings. It is also understood that when an element such as a layer, film, region, or substrate is referred to as "on" another element, the element may be directly on the other element or there may be intermediate elements. Furthermore, "on" means positioning an element on or below another element, but does not inherently mean positioning it above another element according to the direction of gravity.

[0100] The terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the middle.

[0101] It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or apparatus that includes the aforementioned element.

[0102] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A touch display screen, comprising a display area and a border area surrounding at least a portion of the display area, the touch display screen comprising: Display components; A touch component is disposed on the light-emitting side of the display component; a touch electrode and a bonding area are disposed on the side of the touch component facing the display component, and a pad connected to the touch electrode is disposed in the bonding area; the touch electrode is located in the display area, and the bonding area is located in the bezel area; A connector having a signal pin and a ground pin; the signal pin is fixedly connected to the pad. A shielding element is provided between the display component and the touch component; The signal pin has a first size, and the ground pin has a second size, which is larger than the first size, so that after the connector is fixed in the bonding area, a portion of the ground pin is located outside the bonding area in a direction perpendicular to the display component, and is connected to the shield in a leadless manner, and the shield is grounded through the connector.

2. The touch display screen according to claim 1, wherein the touch component comprises: Translucent cover plate; A touch layer located on the side of the light-transmitting cover plate facing the display component, the touch layer including the touch electrodes; A first light-shielding layer is located on the side of the touch layer opposite to the light-transmitting cover plate; the first light-shielding layer is located within the frame area; The shielding element is located on the side of the first light-shielding layer facing the display component.

3. The touch display screen according to claim 2, wherein the first light-shielding layer is a conductive material; The shielding component is a light-transmitting conductive adhesive that bonds and fixes the display component and the touch component, and the grounding pin is connected to the shielding component through the first light-shielding layer.

4. The touch display screen according to claim 3, wherein the pad is located on the side of the touch layer facing the display component, and the pad is insulated from the first light-shielding layer.

5. The touch display screen according to claim 2, wherein the first light-shielding layer is an insulating material; The shielding component is a light-transmitting conductive layer that isolates the touch layer from the display component; the light-transmitting conductive layer is located between the first light-shielding layer and the touch layer, and the light-transmitting conductive layer has a first hollow area that exposes the bonding area; the portion of the grounding pin extending outside the bonding area is connected to the light-transmitting conductive layer; The touch component is bonded and fixed to the display component by an insulating optical adhesive located on the side of the light-transmitting conductive layer facing the display component.

6. The touch display screen according to claim 5, wherein the light-transmitting conductive layer is a metal mesh structure, a light-transmitting metal oxide, or a light-transmitting metal thin film.

7. The touch display screen according to claim 5, wherein the portion of the grounding pin located outside the bonding area is connected to the light-transmitting conductive layer by conductive adhesive.

8. The touch display screen according to any one of claims 1-7, wherein a dummy pad is provided in the bonding area corresponding to the position of the ground pin, the dummy pad being used to connect with the portion of the ground pin located in the bonding area, and the dummy pad and the pad satisfy the condition of being flush.

9. An electronic device comprising a touch display screen as described in any one of claims 1-8.

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