Display screen capable of improving anti-interference capability and reducing interval between visual area and binding area

Abstract

The utility model discloses a display screen capable of improving anti-interference capability and reducing the distance between a visual area and a binding area, which comprises a cover plate, a first film, a second film, a third film, a fourth film and a fifth film which are sequentially overlapped from bottom to top, and graphene coatings are arranged on the surfaces of the first film and the fifth film. ITO circuits are arranged on the surfaces of the second film and the fourth film, the third film is a shielding layer film, FPCs are bound to the second film and the fourth film, and the ITO circuits, close to the FPC binding positions, on the surfaces of the second film and the fourth film are partially overlapped. The first film and the fifth film which are provided with the graphene coatings can convert harmful electromagnetic waves or interference waves into heat energy to be consumed, so that silver paste circuits on the second film and the fourth film can be overlapped, the distance from a visual area to an FPC binding position is reduced, and meanwhile the structure can also integrally improve the anti-interference capacity of a display screen.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically, to a display screen with improved anti-interference ability and reduced distance from the viewing area to the bonding area. Background Art

[0002] The main structure of a traditional touch screen consists of components such as a cover plate, a film sensor, and an FPC. Taking a double-layer film sensor as an example, the main structure of the film sensor consists of an upper OCA, an upper film, a lower OCA, and a lower film. The silver paste circuits of the upper and lower films in this structure need to be staggered in space; otherwise, the capacitance value is likely to change, affecting the normal use of the touch screen. This structure causes the silver paste circuits of the upper and lower films to occupy more space in the non-visible area, resulting in a larger distance from the viewing area to the FPC bonding area. At the same time, it has no ability to resist signal interference such as electromagnetic waves coming from space, and its anti-interference ability is weak. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is how to improve the anti-interference ability of the display screen and reduce the distance from the viewing area to the bonding area.

[0004] The technical problem to be solved by the utility model is realized through the following technical solutions:

[0005] To solve the above technical problem, the utility model provides a display screen with improved anti-interference ability and reduced distance from the viewing area to the bonding area, which includes a cover plate, a first film, a second film, a third film, a fourth film, and a fifth film that are sequentially stacked from bottom to top. Graphene coatings are provided on the surfaces of the first film and the fifth film, ITO circuits are provided on the surfaces of the second film and the fourth film, the third film is a shielding layer film, FPCs are bonded to both the second film and the fourth film, and the ITO circuits on the surfaces of the second film and the fourth film near the FPC bonding positions are partially overlapped.

[0006] As a preferred embodiment of the display screen with improved anti-interference ability and reduced distance from the viewing area to the bonding area provided by the utility model, the cover plate, the first film, the second film, the third film, the fourth film, and the fifth film are all fixedly bonded by OCA optical glue.

[0007] As a preferred embodiment of the display screen with improved anti-interference ability and reduced distance from the viewing area to the bonding area provided by the utility model, the graphene coatings are provided on the entire upper surface or lower surface of the first film and the fifth film.

[0008] As a preferred embodiment of the display screen provided by the present utility model for improving anti-interference ability and reducing the distance from the viewing area to the bonding area, a trace label paper is provided on the surface of the FPC.

[0009] As a preferred embodiment of the display screen provided by the present utility model for improving anti-interference ability and reducing the distance from the viewing area to the bonding area, a shielding paper is provided on the surface of the FPC, and the shielding paper covers the surface of the FPC and the trace label paper.

[0010] As a preferred embodiment of the display screen provided by the present utility model for improving anti-interference ability and reducing the distance from the viewing area to the bonding area, the shielding paper includes a shielding layer, an adhesive layer, and a non-adhesive layer sequentially stacked from top to bottom. The size and position of the non-adhesive layer correspond to the size and position of the trace label paper. The non-adhesive layer covers the trace label paper, and the adhesive layer covers the surface of the FPC.

[0011] As a preferred embodiment of the display screen provided by the present utility model for improving anti-interference ability and reducing the distance from the viewing area to the bonding area, the thickness of the non-adhesive layer is 0.03 mm - 0.06 mm.

[0012] As a preferred embodiment of the display screen provided by the present utility model for improving anti-interference ability and reducing the distance from the viewing area to the bonding area, the edge of the non-adhesive layer extends beyond the edge of the trace label paper by 1.5 mm to 3 mm.

[0013] As a preferred embodiment of the display screen provided by the present utility model for improving anti-interference ability and reducing the distance from the viewing area to the bonding area, the appearance colors of the non-adhesive layer and the shielding layer are different.

[0014] As a preferred embodiment of the display screen provided by the present utility model for improving anti-interference ability and reducing the distance from the viewing area to the bonding area, the color of the non-adhesive layer is white, and the color of the shielding layer is black.

[0015] The present utility model has the following beneficial effects:

[0016] Since a first film and a fifth film are respectively provided above the second film and below the fourth film, and graphene coatings are provided on the surfaces of the first film and the fifth film, the first film and the fifth film provided with graphene coatings can convert harmful electromagnetic waves or interference waves into heat energy for consumption. The ITO pattern on the shielding layer film can block abnormal capacitance changes, so that the silver paste lines of the upper and lower overlapping films in space cannot generate capacitance changes. In this way, the silver paste lines on the second film and the fourth film can overlap, thereby reducing the distance from the viewing area to the FPC bonding position. At the same time, this structure can also improve the anti-interference ability of the display screen as a whole. Description of the Drawings

[0017] To more clearly illustrate the solutions in this application, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of a display screen provided by the present utility model, which improves the anti-interference ability and reduces the distance from the viewing area to the binding area.

[0019] Figure 2 For Figure 1 the top view.

[0020] Figure 3 For Figure 2 the schematic structural diagram before the second film and the fourth film overlap in

[0021] Figure 4 It is a schematic structural diagram of the improved FPC.

[0022] Figure 5 For Figure 4 the bottom view of the shielding paper in

[0023] Figure 6 For Figure 4 the laminated structure diagram of the shielding paper in

[0024] Explanation of the reference numerals in the drawings:

[0025] Cover plate 1; First film 2; Second film 3; Third film 4; Fourth film 5; Fifth film 6; FPC 7; Overlapping area 100; OCA optical adhesive 8;

[0026] Trace label paper 71; Shielding paper 72; Shielding layer 721; Adhesive layer 722; Non-adhesive layer 723. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the solutions of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0029] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] The present utility model provides a display screen that improves anti-interference ability and reduces the distance from the viewing area to the binding area. It includes a cover plate, a first film, a second film, a third film, a fourth film, and a fifth film that are sequentially stacked from bottom to top. Graphene coatings are provided on the surfaces of the first film and the fifth film. ITO circuits are provided on the surfaces of the second film and the fourth film. The third film is a shielding layer film. FPCs are bound to both the second film and the fourth film. The ITO circuits on the surfaces of the second film and the fourth film near the FPC binding positions are partially overlapped.

[0031] Since the first film is provided above the second film and the fifth film is provided below the fourth film, and graphene coatings are provided on the surfaces of the first film and the fifth film, the first film and the fifth film provided with graphene coatings can convert harmful electromagnetic waves or interference waves into heat energy for consumption. The ITO patterns on the shielding layer film can block abnormal capacitance changes, so that the capacitance values of the silver paste lines of the upper and lower films that overlap in space cannot change. In this way, the silver paste lines on the second film and the fourth film can overlap, thereby reducing the distance from the viewing area to the FPC binding position. At the same time, this structure can also improve the anti-interference ability of the display screen as a whole.

[0032] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings. The following describes the present utility model in detail with reference to the drawings and embodiments. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0033] Please refer to Figures 1 to 3 , a display screen provided by the present utility model that improves anti-interference ability and reduces the distance from the viewing area to the binding area. It includes a cover plate 1, a first film 2, a second film 3, a third film 4, a fourth film 5, and a fifth film 6 that are sequentially stacked from bottom to top. Graphene coatings are provided on the surfaces of the first film 2 and the fifth film 6. ITO circuits are provided on the surfaces of the second film 3 and the fourth film 5. The third film 4 is a shielding layer film. FPCs 7 are bonded to both the second film 3 and the fourth film 5. The ITO circuits on the surfaces of the second film 3 and the fourth film 5 near the bonding positions of the FPCs 7 are partially overlapped, that is, there is an overlapping area 100 when the second film 3 and the fourth film 5 are viewed from the top. Since the first film 2 and the fifth film 6 are respectively provided above the second film 3 and below the fourth film 5, and graphene coatings are provided on the surfaces of the first film 2 and the fifth film 6, the first film 2 and the fifth film 6 provided with graphene coatings can convert harmful electromagnetic waves or interference waves into heat energy and consume them. The ITO patterns on the shielding layer film can block abnormal capacitance changes, so that the capacitance values of the silver paste lines of the upper and lower overlapping films in space cannot change. In this way, the silver paste lines on the second film 3 and the fourth film 5 can overlap, thereby reducing the distance from the viewing area to the bonding position of the FPC 7. At the same time, this structure can also improve the anti-interference ability of the display screen as a whole.

[0034] Further, the cover plate 1, the first film 2, the second film 3, the third film 4, the fourth film 5, and the fifth film 6 are all fixedly adhered by OCA optical adhesive 8, that is, between the cover plate 1 and the first film 2, between the first film 2 and the second film 3, between the second film 3 and the third film 4, between the third film 4 and the fourth film 5, and between the fourth film 5 and the fifth film 6 are all fixedly adhered by OCA optical adhesive 8.

[0035] Further, the graphene coating is provided on the upper surface or the lower surface of the first film 2 and the fifth film 6, and the entire surfaces of the first film 2 and the fifth film 6 are coated with the graphene coating.

[0036] Please refer to Figures 4 to 6, as a further optimized solution of Embodiment 1, in this embodiment, a traceability label paper 71 and a shielding paper 72 are provided on the surface of the FPC 7. The traceability label paper 71 is pasted on the surface of the FPC 7, and the shielding paper 72 covers the surface of the FPC 7 and the traceability label paper 71. The shielding paper 72 includes a shielding layer 721, an adhesive layer 722, and a non-adhesive layer 723 that are sequentially stacked from top to bottom. The size and position of the non-adhesive layer 723 correspond to the size and position of the traceability label paper 71. The non-adhesive layer 723 covers the traceability label paper 71, and the adhesive layer 722 covers the surface of the FPC 7. Since the non-adhesive layer 723 is provided at the lowermost layer of the shielding paper 72 and the non-adhesive layer 723 covers the traceability label paper 71, while the adhesive layer 722 covers other areas on the surface of the FPC 7, that is, by adding a non-adhesive non-adhesive layer 723 in the corresponding area of the traceability label paper 71, the adhesiveness of the shielding paper 72 is isolated from the traceability label paper 71, which can avoid the problem that the traceability code on the traceability label paper 71 is easily peeled off due to the adhesiveness of the shielding paper 72 during rework, and improve the traceability of product accessories.

[0037] Further, the thickness of the non-adhesive layer 723 is 0.03 mm - 0.06 mm. The edge of the non-adhesive layer 723 extends 1.5 mm to 3 mm beyond the edge of the traceability label paper 71 to ensure that the non-adhesive layer 723 can still completely cover the traceability label paper 71 in case of a pasting deviation. In addition, the appearance colors of the non-adhesive layer 723 and the shielding layer 721 are different, so that it is easy to visually distinguish whether the non-adhesive layer 723 is missed pasted, ensuring the consistency of the product. More preferably, the color of the non-adhesive layer 723 is white, and the color of the shielding layer 721 is black. Using white and black can better distinguish the non-adhesive layer 723 and the shielding layer 721.

[0038] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] Obviously, the embodiments described above are only a part of the embodiments of this application, rather than all of them. The preferred embodiments of this application are shown in the accompanying drawings, but they do not limit the patent scope of this application. This application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of this application more thorough and comprehensive. Although this application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure that makes use of the content of the specification and drawings of this application, directly or indirectly applied in other related technical fields, is equally within the scope of patent protection of this application.

Claims

1. A display screen with improved anti-interference capability and reduced distance between viewing area and binding area, characterized in that: It includes a cover plate, a first film, a second film, a third film, a fourth film and a fifth film which are stacked in sequence from bottom to top, the surfaces of the first film and the fifth film are both provided with a graphene coating, the surfaces of the second film and the fourth film are provided with an ITO circuit, the third film is a shielding layer film, the second film and the fourth film are both bound with an FPC, and the ITO circuits on the surfaces of the second film and the fourth film near the FPC binding position are partially overlapped.

2. The display screen with improved anti-interference capability and reduced distance between the viewing area and the binding area according to claim 1, characterized in that: The cover plate, the first film, the second film, the third film, the fourth film and the fifth film are all fixed by OCA optical adhesive.

3. The display screen with improved anti-interference capability and reduced distance between the viewing area and the binding area according to claim 1, characterized in that: The graphene coating is disposed on the entire surface of the upper surface or the lower surface of the first film and the fifth film.

4. The display screen with improved anti-interference capability and reduced distance between the viewing area and the binding area according to claim 1, characterized in that: A traceability label paper is provided on the surface of the FPC.

5. The display screen with improved anti-interference capability and reduced distance between the viewing area and the binding area according to claim 4, characterized in that: Shielding paper is arranged on the surface of the FPC, and the shielding paper covers the surface of the FPC and the traceability label paper.

6. The display screen with improved anti-interference capability and reduced distance between the viewing area and the binding area according to claim 5, characterized in that: The shielding paper includes a shielding layer, a glue layer and a non-adhesive layer stacked in sequence from top to bottom, the size and position of the non-adhesive layer correspond to the size and position of the traceability label paper, the non-adhesive layer covers the traceability label paper, and the glue layer covers the surface of the FPC.

7. The display screen with improved anti-interference capability and reduced distance between the viewing area and the binding area according to claim 6, characterized in that: The thickness of the non-adhesive layer is 0.03 mm to 0.06 mm.

8. The display screen with improved anti-interference capability and reduced distance between the viewing area and the binding area according to claim 6, characterized in that: The edge of the non-adhesive layer exceeds the edge of the traceability label paper by 1.5 mm to 3 mm.

9. The display screen with improved anti-interference capability and reduced distance between the viewing area and the binding area according to claim 6, characterized in that: The non-adhesive layer and the shielding layer have different appearance colors.

10. The display screen with improved anti-interference capability and reduced distance between the viewing area and the binding area according to claim 6, characterized in that: The color of the non-adhesive layer is white, and the color of the shielding layer is black.

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