Touch components, display modules and electronic devices

Abstract

The present invention relates to a touch component, a display module and an electronic device, wherein the touch component includes a touch film and an insulating protective film, the insulating protective film includes a first and a second insulating layer stacked, the first insulating layer covers the touch film, and the second insulating layer is arranged on the surface of the first insulating layer away from the touch film; the second insulating layer includes a first area and a second area arranged outside the first area, the surface of the first area away from the first insulating layer is used to connect with the display panel, the surface of the second area away from the first insulating layer is used to bond with the frame through an adhesive layer, and a hollow structure is arranged on the second area. The touch component, display module and electronic device of the present invention increase the surface roughness of the second area and the contact area between the adhesive layer and the insulating protective film by arranging a hollow structure on the second area of ​​the second insulating layer, thereby increasing the bonding force between the adhesive layer and the insulating protective film and improving the connection stability between the double-sided adhesive and the insulating protective film.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and in particular to a touch control component, a display module and an electronic device. Background Art

[0002] At present, electronic devices generally include a frame and a display module mounted on the frame, wherein the display module and the frame are bonded together by double-sided adhesive. The display module generally includes a cover plate, a touch component and a display panel. The touch component is divided by region, generally including a touch area and a wiring area, and the part of the touch component corresponding to the touch area is located between the cover plate and the display panel. In addition, the touch component generally includes a touch film and an insulating protective layer located on the touch film. The touch film is generally provided with an electrode pattern and a wire. The electrode pattern is located in the touch area for sensing the touch signal; the wire is located in the wiring area for deriving the touch signal. The insulating protective film is provided on the touch film to avoid short circuits. The part of the insulating protective film corresponding to the wiring area is used to bond with the frame by double-sided adhesive, so that the frame can be arranged around the outer periphery of the display panel. However, in existing electronic devices, the bonding force between the double-sided adhesive and the insulating protective film is weak, resulting in a low tensile force value that the double-sided adhesive and the insulating protective film can withstand, which in turn leads to poor connection stability and reliability between the double-sided adhesive and the insulating protective film. Summary of the invention

[0003] Based on this, it is necessary to provide a touch component, a display module and an electronic device to solve the above technical problems.

[0004] The touch control assembly of the present invention comprises a touch control film and an insulating protective film, wherein the insulating protective film comprises a first insulating layer and a second insulating layer which are stacked, wherein the first insulating layer covers the touch control film, and the second insulating layer is arranged on a surface of the first insulating layer which is away from the touch control film; the second insulating layer comprises a first area and a second area which is arranged outside the first area, wherein a surface of the first area which is away from the first insulating layer is used for connecting with a display panel, and a surface of the second area which is away from the first insulating layer is used for bonding with a frame through an adhesive layer, and a hollow structure is arranged on the second area.

[0005] In one embodiment, the number of the hollow structures is more than two, and different hollow structures are arranged at intervals from each other.

[0006] In one embodiment, the minimum size of the hollow structure is greater than or equal to 0.15 mm.

[0007] In one embodiment, the total area of ​​all the hollow structures accounts for 40%-80% of the area of ​​the second region.

[0008] In one embodiment, the hollow structure is arranged in a strip, mesh or lattice shape, and the shape of the hollow structure is circular, elliptical or polygonal.

[0009] In one embodiment, the hollow structures are arranged regularly or irregularly.

[0010] In one embodiment, the second insulating layer has a first surface and a second surface arranged opposite to each other, the hollow structure penetrates the first surface and the second surface, the first surface is connected to the first insulating layer, and the second area of ​​the second surface is used to bond to the frame through an adhesive layer; the roughness range of the second area of ​​the second surface is 4μm-12μm.

[0011] In one embodiment, the touch film includes a touch area and a routing area, the touch area is provided with an electrode pattern, and the routing area is provided with a wire; the projection of the first area on the touch film coincides with the touch area, and the projection of the second area on the touch film coincides with the routing area.

[0012] The present invention also proposes a display module, comprising a display panel, a protective cover plate and any of the above-mentioned touch components, wherein the display panel is arranged on the surface of the first area of ​​the second insulating layer away from the first insulating layer; the protective cover plate is arranged on the surface of the touch film away from the first insulating layer.

[0013] The present invention also provides an electronic device, comprising a frame, an adhesive layer and the above-mentioned display module, wherein the adhesive layer is bonded between the surface of the second region of the second insulating layer away from the first insulating layer and the frame, and a partial structure of the adhesive layer is located in the hollow structure.

[0014] The touch control component, display module and electronic device of the present invention have the following beneficial effects:

[0015] The touch control component, display module and electronic device of the present invention reasonably set the structure of the insulating protective film, set the insulating protective film to include two insulating layers arranged in a stacked manner, namely, a first insulating layer and a second insulating layer, and cover the first insulating layer on the touch control film to protect the circuit structure and avoid short circuit; the second insulating layer is divided into zones, and a hollow structure is set on the second zone to increase the surface roughness of the second zone and the contact area between the adhesive layer and the insulating protective film, thereby increasing the bonding force between the adhesive layer and the insulating protective film, and improving the connection stability and reliability between the double-sided adhesive and the insulating protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A partial longitudinal cross-sectional view of a display module provided by an embodiment of the present invention.

[0017] Figure 2A schematic diagram of a partial top view of the structure of a first insulating layer provided in one embodiment of the present invention.

[0018] Figure 3 A schematic diagram of a partial top view of the second insulating layer provided in one embodiment of the present invention.

[0019] Figure 4 A schematic diagram of a partial top view of the structure of a second insulating layer and a first insulating layer superimposed on each other provided in one embodiment of the present invention.

[0020] Figure 5 A partial longitudinal cross-sectional view of a display module after an adhesive layer is disposed on the second region of the second insulating layer according to an embodiment of the present invention.

[0021] Figure 6 A partial longitudinal cross-sectional view of a display module after an adhesive layer is disposed on the second region of the second insulating layer according to another embodiment of the present invention.

[0022] Figure 7 A partial longitudinal cross-sectional view of an electronic device provided by another embodiment of the present invention.

[0023] Reference numerals:

[0024] Touch component 100, touch film 110, touch area 111, routing area 112, insulating protection film 120, first insulating layer 121, second insulating layer 122, first area 123, second area 124, hollow structure 125, first surface 126, second surface 127, display panel 200, protective cover 300, adhesive layer 400, frame 500, display module 10, electronic device 20. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method. In addition, it should be noted that in the sectional views in the accompanying drawings of this article, the setting of the section lines is to more clearly illustrate the specific structure of the embodiments of the present invention. In a sectional view, the same section line schematically represents the same component or represents different components using the same material. The shape of the section line, including the inclination angle and the spacing distance, does not strictly follow the section line setting for different materials in the mechanical drawing. For example, in the drawings of this article, a section line inclined at 45° does not necessarily represent a metal material, but may also represent other non-metallic materials.

[0031] At present, electronic devices generally include a frame and a display module mounted on the frame, wherein the display module and the frame are bonded together by double-sided adhesive. The display module generally includes a cover plate, a touch component and a display panel. The touch component is divided by region, generally including a touch area and a wiring area, and the part of the touch component corresponding to the touch area is located between the cover plate and the display panel. In addition, the touch component generally includes a touch film and an insulating protective layer located on the touch film. The touch film is generally provided with an electrode pattern and a wire. The electrode pattern is located in the touch area for sensing the touch signal; the wire is located in the wiring area for deriving the touch signal. The insulating protective film is provided on the touch film to avoid short circuits. The part of the insulating protective film corresponding to the wiring area is used to bond with the frame by double-sided adhesive, so that the frame can be arranged around the outer periphery of the display panel. However, in existing electronic devices, the bonding force between the double-sided adhesive and the insulating protective film is weak, resulting in a low tensile force value that the double-sided adhesive and the insulating protective film can withstand, which in turn leads to poor connection stability and reliability between the double-sided adhesive and the insulating protective film.

[0032] In order to solve the above problems, the present invention provides a touch control component 100, a display module 10 and an electronic device 20. In one embodiment, the structure of the display module 10 is as follows: Figure 1As shown, the device includes a touch component 100, a display panel 200 and a protective cover plate 300. The touch component 100 is located between the protective cover plate 300 and the display panel 200. The touch component 100 includes a touch film 110 and an insulating protective film 120. The touch film 110 is arranged on the protective cover plate 300. The insulating protective film 120 includes a first insulating layer 121 and a second insulating layer 122 that are stacked. The first insulating layer 121 covers the touch film 110, and the second insulating layer 122 is arranged on the surface of the first insulating layer 121 away from the touch film 110; the second insulating layer 122 includes a first area 123 and a second area 124 arranged outside the first area 123. The surface of the first area 123 away from the first insulating layer 121 is connected to the display panel 200. A hollow structure 125 is arranged on the second area 124. The surface of the second area 124 away from the first insulating layer 121 is used to be bonded to the frame through an adhesive layer.

[0033] In one embodiment, the structure of the first insulating layer 121 when viewed from above is as follows: Figure 2 As shown, the partial top view structure of the second insulating layer 122 is as shown in Figure 3 As shown, the partial top view structure after the second insulating layer 122 and the first insulating layer 121 are stacked is as shown in Figure 4 As shown. Figure 1 and 2 As shown, the first insulating layer 121 is fully covered on the touch film 110 to protect the circuit structure on the touch film 110 and avoid short circuit. The structure after the adhesive layer 400 is arranged on the second area 124 of the second insulating layer 122 is as shown in FIG. Figure 5 As shown, the hollow structure 125 of the second region 124 of the second insulating layer 122 is used to increase the surface roughness of the second region 124 of the second insulating layer 122 and the contact area between the adhesive layer 400 and the insulating protection film 120 .

[0034] In one embodiment, Figure 1 As shown, the touch film 110 includes a touch area 111 and a wiring area 112. The circuit structure on the touch film 110 includes an electrode pattern and a wire. The electrode pattern is arranged on the touch area 111 for sensing a touch signal. The wire is arranged on the wiring area 112 for deriving the touch signal. The projection of the first area 123 of the second insulating layer 122 on the touch film 110 coincides with the touch area 111. The projection of the second area 124 of the second insulating layer 122 on the touch film 110 coincides with the wiring area 112.

[0035] In addition, if Figure 3As shown, the number of hollow structures 125 on the second region 124 of the second insulating layer 122 is more than two, and the shape of the hollow structures 125 is rectangular and arranged regularly in strips, and different hollow structures 125 are spaced apart from each other. The present invention does not limit the number, shape, and arrangement of the hollow structures 125. It can be understood that in other embodiments, the arrangement of the hollow structures 125 can also be mesh or lattice-like, and the shape of the hollow structures 125 can also be circular, elliptical, or polygonal. The polygon can be a triangle, a rhombus, or a hexagon, etc. The hollow structures 125 can be arranged regularly or irregularly. In one embodiment, the sum of the areas of all the hollow structures 125 accounts for 40%-80% of the area of ​​the second region 124 of the second insulating layer 122, that is, the aperture ratio of the second insulating layer 122 ranges from 40% to 80%. In a specific embodiment, as Figure 2 As shown, the second insulating layer 122 has a first surface 126 and a second surface 127 that are oppositely arranged, the hollow structure 125 penetrates the first surface 126 and the second surface 127, the first surface 126 is connected to the first insulating layer 121, and the second surface 127 of the second area 124 is used to bond with the frame 500 through the adhesive layer 400, and the roughness range of the second surface 127 in the second area 124 is 4μm-12μm.

[0036] In a specific embodiment, the first insulating layer 121 and the second insulating layer 122 are both insulating glue, the first insulating layer 121 is fully coated on the touch film 110, and the second area 124 of the second insulating layer 122 is partially coated to form a hollow structure 125. In the process of partial coating, in order to avoid overflow of glue affecting the shape and arrangement of the hollow structure 125, such as Figure 3 As shown, the minimum size of the hollow structure 125 is D, D ＞ 0.15mm.

[0037] The structure after the adhesive layer 400 is disposed on the second region 124 of the second insulating layer 122 is as follows Figure 5 As shown, part of the structure of the adhesive layer 400 is located in the hollow structure 125, thereby increasing the contact area between the adhesive layer 400 and the insulating protective film 120, thereby increasing the bonding force between the adhesive layer 400 and the insulating protective film 120. In addition, it should be noted that Figure 5 In the embodiment shown, the adhesive layer 400 is a solid double-sided adhesive, and the portion of the adhesive layer 400 located in the hollow structure 125 does not completely fill the hollow structure 125. It is understandable that in other embodiments, such as Figure 6As shown, the adhesive layer 400 can also be formed by curing other fluid glue. At this time, the part of the adhesive layer 400 located in the hollow structure 125 fills the hollow structure 125, thereby further increasing the contact area between the adhesive layer 400 and the insulating protective film 120, and further increasing the bonding force between the adhesive layer 400 and the insulating protective film 120.

[0038] In another embodiment, Figure 7 As shown, the present invention also proposes an electronic device 20, including a frame 500, a display module 10 and an adhesive layer 400, the surface of the second insulating layer 122 away from the first insulating layer 121 is the second surface 127, the display panel 200 is arranged on the first area 123 of the second surface 127, and the adhesive layer 400 is bonded between the second area 124 of the second surface 127 and the frame 500, so that the frame 500 is arranged around the periphery of the display panel 200.

[0039] In addition, in one embodiment, according to the display principle of the display panel 200, the display panel 200 may be an LCM module, and the LCM module includes a backlight module and a liquid crystal layer. The backlight module serves as the backlight source of the display panel 200, and provides light for the display panel 200 module. The liquid crystal layer may function as a light valve, and control the emission of the backlight source light by cooperating with the bias switch. In another embodiment, the display panel 200 may be an organic light emitting display panel 200 (OLED), and the organic light emitting display panel 200 is a self-luminous display panel 200, and may include a plurality of organic light emitting diodes for emitting light. The organic light emitting diodes include an anode, a cathode, and an organic light emitting layer located between the anode and the cathode.

[0040] The touch control assembly 100, the display module 10 and the electronic device 20 of the present invention reasonably set the structure of the insulating protective film 120, set the insulating protective film 120 to include two insulating layers arranged in a stacked manner, namely, a first insulating layer 121 and a second insulating layer 122, and cover the first insulating layer 121 on the touch control film 110 to protect the circuit structure and avoid short circuit; the second insulating layer 122 is divided into zones, and a hollow structure 125 is set on the second zone 124 to increase the surface roughness of the second zone 124 and the contact area between the adhesive layer 400 and the insulating protective film 120, thereby increasing the bonding force between the adhesive layer 400 and the insulating protective film 120, and improving the connection stability and reliability between the double-sided adhesive and the insulating protective film 120.

[0041] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A touch control component, characterized in that: The invention comprises a touch film and an insulating protective film, wherein the insulating protective film comprises a first insulating layer and a second insulating layer which are stacked, wherein the first insulating layer covers the touch film, and the second insulating layer is arranged on a surface of the first insulating layer away from the touch film; the second insulating layer comprises a first area and a second area arranged outside the first area, wherein a surface of the first area away from the first insulating layer is used to be connected to a display panel, and a surface of the second area away from the first insulating layer is used to be bonded to a frame through an adhesive layer, and a hollow structure is arranged on the second area; The second insulating layer has a first surface and a second surface that are oppositely disposed, the hollow structure passes through the first surface and the second surface, the first surface is connected to the first insulating layer, and the second area of ​​the second surface is used to be bonded to the frame through the bonding layer; The touch film includes a touch area and a wiring area, the touch area is provided with an electrode pattern, and the wiring area is provided with a wire; the projection of the first area on the touch film coincides with the touch area, and the projection of the second area on the touch film coincides with the wiring area.

2. The touch control assembly according to claim 1, characterized in that: The number of the hollow structures is more than two, and different hollow structures are arranged at intervals from each other.

3. The touch control assembly according to claim 1, characterized in that: The minimum size of the hollow structure is greater than or equal to 0.15 mm.

4. The touch control assembly according to claim 2, characterized in that: The total area of ​​all the hollow structures accounts for 40%-80% of the area of ​​the second region.

5. The touch control assembly according to claim 2, characterized in that: The arrangement of the hollow structure is in the form of strips, meshes or lattices, and the shape of the hollow structure is in the form of a circle, an ellipse or a polygon.

6. The touch control assembly according to claim 2, characterized in that: The hollow structures are arranged regularly or irregularly.

7. The touch control assembly according to claim 2, characterized in that: The roughness of the second area of ​​the second surface is in the range of 4 μm to 12 μm.

8. A display module, characterized in that: include: The touch control assembly according to any one of claims 1 to 7; A display panel is arranged on a surface of the first region of the second insulating layer away from the first insulating layer; and, A protective cover plate is arranged on a surface of the touch film away from the first insulating layer.

9. An electronic device, characterized in that: include: frame; The display module as claimed in claim 8; and, An adhesive layer is bonded between a surface of the second region of the second insulating layer that is away from the first insulating layer and the frame, and a partial structure of the adhesive layer is located in the hollow structure.

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