Protective film structure and touch display module

Abstract

The application relates to the technical field of display, and provides a protective film structure and a touch display module. The protective film structure and the touch display module at least comprise a first film body and a second film body, the second film body comprises a main body part attached to the first surface of the first film body and an operation part connected to the main body part. By arranging a stress dispersion structure on the main body part, when the second film body is opened by means of the operation part, the stress acting on the main body part is dispersed by the stress dispersion structure, and then the situation that the main body part is completely separated from the first film body or the main body part drives the first film body to be separated from a display panel can be improved, so that the related film structure does not need to be attached again, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a protective film structure and a touch display module. BACKGROUND

[0002] In the related art, during the manufacturing process of the touch display module, a protective film is arranged on the camera hole area of the touch display module to protect the camera hole area of the touch display module.

[0003] However, in the subsequent process, the protective film needs to be torn to check the appearance of the camera hole area of the touch display module. During the process of tearing the protective film, the whole protective film is prone to be separated from the touch display module, which leads to the need to reposition and arrange the protective film, thereby affecting the production efficiency. SUMMARY

[0004] Therefore, it is necessary to provide a protective film structure and a touch display module to improve the situation that the related film layer is separated from the corresponding structure when the appearance of the touch display module is checked, and to improve the production efficiency.

[0005] According to one aspect of the present application, an embodiment of the present application provides a protective film structure, characterized in that it comprises:

[0006] a first film body having a first surface and a through hole opened in a first direction; and

[0007] a second film body comprising a main body part attached to the first surface and an operation part connected to the main body part; a normal projection of the through hole on the first surface is located within a normal projection of the main body part on the first surface;

[0008] wherein a stress dispersion structure is arranged on the main body part; in the first direction, the size of the stress dispersion structure is smaller than the size of the main body part.

[0009] The first direction is perpendicular to the first surface.

[0010] In one embodiment, along the extension direction of the stress dispersion structure, there is an unconnected part between the main body parts on both sides of the stress dispersion structure.

[0011] In one embodiment, the main body part has a second surface and a third surface arranged opposite in the first direction, and the second surface is attached to the first surface; the stress dispersion structure is arranged on the second surface and / or the third surface.

[0012] The stress dispersion structure is configured as a notch part; or

[0013] The stress dispersion structure is configured as a slit.

[0014] In one of the embodiments, the stress dispersion structure has a starting end and a terminal end.

[0015] The starting end is directed towards the terminal end in a direction intersecting with the direction in which the operation portion is directed towards the main body portion; and both the direction in which the starting end is directed towards the terminal end and the direction in which the operation portion is directed towards the main body portion are perpendicular to the first direction.

[0016] In one of the embodiments, along the direction in which the operation portion is directed towards the main body portion, the main body portion has a first side and a second side oppositely arranged;

[0017] A straight line passing through the starting end and the terminal end is defined as a reference line, and the reference line passes through the first side and the second side.

[0018] In one of the embodiments, the reference line and the direction in which the operation portion is directed towards the main body portion are perpendicular to each other.

[0019] In one of the embodiments, the starting end is located at the first side, and the terminal end is located at the second side.

[0020] In one of the embodiments, the stress dispersion structure is configured as an elongated structure.

[0021] In one of the embodiments, the stress dispersion structure is configured to include a curved segment, a zigzag segment or a straight segment.

[0022] In one of the embodiments, the stress dispersion structure includes a plurality of interval portions arranged at intervals along the extension direction of the stress dispersion structure; or

[0023] The stress dispersion structure is arranged to extend along the extension direction of the stress dispersion structure.

[0024] In one of the embodiments, along the first direction, the ratio of the size of the stress dispersion structure to the size of the main body portion is 0.5; and / or

[0025] The main body portion has a third side connected with the operation portion, and a fourth side oppositely arranged with the third side; the normal projection of the stress dispersion structure on the first surface is located at a side of the through hole close to the fourth side; and / or

[0026] The protective film structure further includes an adhesive layer, and the main body portion is attached to the first surface by means of the adhesive layer.

[0027] According to another aspect of this application, an embodiment of this application provides a touch display module, including a display panel and a protective film structure as described in any of the above embodiments; the first film body is disposed on the side of the display panel away from the main body; the through hole is located in the camera hole area on the display panel.

[0028] In the aforementioned protective film structure and touch display module, the protective film structure includes at least a first film and a second film. The second film includes a main body portion adhered to a first surface of the first film and an operating portion connected to the main body portion. By providing a stress-dispersing structure on the main body portion, when the second film is opened by means of the operating portion, the stress acting on the main body portion is dispersed by the stress-dispersing structure. This improves the situation where the main body portion is completely separated from the first film portion or the main body portion causes the first film portion to separate from the display panel, thereby eliminating the need for re-aligning and adhering the relevant film structures and improving production efficiency.

[0029] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0030] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0031] Figure 1 This is a schematic diagram of the protective film structure in one embodiment of this application;

[0032] Figure 2 for Figure 1 A top view of the second membrane in the protective membrane structure shown in the figure;

[0033] Figure 3 This is a schematic diagram of the protective film structure in a pair of proportions of this application;

[0034] Figure 4 for Figure 3 The diagram shows the protective film structure in its usage state during visual inspection.

[0035] Figure 5 for Figure 1 The diagram shows a top view of the second membrane body in one embodiment of the protective membrane structure.

[0036] Figure 6 for Figure 1 The diagram shows a top view of the second membrane body in another embodiment of the protective membrane structure shown in the figure.

[0037] Figure 7 for Figure 1 The diagram shows a top view of the second membrane in another embodiment of the protective membrane structure.

[0038] Figure 8 for Figure 1 The diagram shows a top view of the second membrane in another embodiment of the protective membrane structure.

[0039] Figure 9 This is a schematic diagram of the structure of a touch display module in one embodiment of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] Protective membrane structure 100;

[0042] First membrane 110, first surface m1, through hole k;

[0043] The second membrane 120, the main body 121, the second surface m2, the third surface m3, the first side c1, the second side c2, the third side c3, the fourth side c4, and the operation part 122.

[0044] Stress dispersion structure x, starting end x1, ending end x2;

[0045] Adhesive layer 130;

[0046] Display panel 200, camera hole area z;

[0047] Dimensions h1, h2;

[0048] The protective film structure 100a includes a first film body 110a, a first surface m1a, a through hole ka, a second film body 120a, an adhesive layer 130a, a display panel 200a, and a camera hole area za.

[0049] First direction F1, second direction F2, third direction F3. Detailed Implementation

[0050] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0051] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0052] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0056] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application and in its specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0057] Figure 1 A schematic diagram of the protective film structure 100 in one embodiment of this application is shown; Figure 2 It shows Figure 1 The diagram shows a top view of the second membrane 120 in the protective membrane structure 100; for ease of explanation, only the content related to the embodiments of this application is shown. Figure 1 and Figure 2 To facilitate the distinction between the main body 121 and the operating part 122, a dashed line is used as the boundary between them. It can be understood that the boundary between the two is not limited to this line, and the related drawings shown below will follow this illustration, without further elaboration. To facilitate the display of the through-hole k in the first membrane 110, [the following text is incomplete and likely refers to a different section]. Figure 1 The protective film 100 shown in the figure has been cut in cross-section, and the relevant figures shown below will not be described in detail.

[0058] In some embodiments, please refer to Figure 1 and Figure 2 This application provides a protective membrane structure 100, which includes a first membrane 110 and a second membrane 120.

[0059] The first film 110 has a first surface m1. A first direction F1 is perpendicular to the first surface m1. The first film 110 has a through hole k formed along the first direction F1. It can be understood that the through hole k penetrates the first surface m1 and a surface (not shown in the figure) that is disposed opposite to the first surface m1 in the first direction F1. For example, the through hole k is located in the camera hole area z of the display panel 200 shown below. Of course, it can also be located in other positions in the touch display module that need to be aligned, and this application embodiment does not specifically limit this. The surface disposed opposite to the first surface m1 in the first direction F1 is used to fit against the display panel 200.

[0060] The second membrane 120 is used to cover the first surface m1 of the first membrane 110, thereby covering the through hole k. The material of the second membrane 120 can be PET (polyethylene glycol terephthalate). It is understood that the second membrane 120 can have a certain rigidity, thereby improving the protective effect of the second membrane 120. Specifically, the second membrane 120 includes a main body 121 and an operating part 122. The main body 121 is attached to the first surface m1 of the first membrane 110. The main body 121 has a second surface m2 and a third surface m3 disposed opposite to each other along the first direction F1, with the second surface m2 attached to the first surface m1. The orthographic projection of the through hole k on the first surface m1 is located within the orthographic projection of the main body 121 on the first surface m1. That is, the main body 121 can cover the through hole k so that the camera hole area z involved in some of the above-mentioned situations is not exposed. The operating part 122 is connected to the main body 121, and the operating part 122 is used to provide a force application point for the operator to apply force. It is understood that the operating part 122 is not connected to the first membrane 110. When the operator applies force to the operating part 122, causing the operating part 122 to move in a direction away from the first membrane 110, the main body 121 will receive stress transmitted from the operating part 122.

[0061] It should be noted that the main body 121 can be bonded to the first film 110 by means of adhesive. Specifically, the protective film structure 100 may further include an adhesive layer 130, on which the main body 121 is bonded to the first surface m1. For example, the adhesive layer 130 may be PSA (Pressure Sensitive Adhesive). It is understood that the release force between the main body 121 and the adhesive layer 130 is greater than the release force between the first film 110 and the adhesive layer 130.

[0062] The main body 121 is provided with a stress-dispersing structure x. The stress-dispersing structure x is a structure that can disperse stress to reduce its intensity. Along the first direction F1, the dimension h1 of the stress-dispersing structure x is smaller than the dimension h2 of the main body 121. That is, the main body 121 does not become several independent parts due to the presence of the stress-dispersing structure x. In other words, the main body 121 remains a single unit; when the main body 121 receives stress transmitted from the operating unit 122 and separates from the first membrane 110 under the action of the operating unit 122, the main body 121 will not be divided into several independent parts.

[0063] To better illustrate the function of the stress dispersion structure x shown above, the following example is provided in conjunction with relevant comparative examples.

[0064] Figure 3A schematic diagram of the protective film structure 100 in a pair of proportions of this application is shown; Figure 4 It shows Figure 3 The diagram illustrates the protective film structure 100 in its operational state during visual inspection; for ease of explanation, only the content relevant to the comparative example of this application is shown.

[0065] In a pair of proportions, please refer to Figure 3 and Figure 4 The protective film structure 100a of this application includes a first film 110a, a second film 120a, and an adhesive layer 130a. The first film 110a has a through-hole ka. The second film 120a is attached to the first surface m1a of the first film 110a via the adhesive layer 130a. The side of the first film 110a facing away from the first surface m1a is attached to the display panel 200a. The through-hole ka corresponds to the camera hole area za located in the display panel 200a.

[0066] It should be noted that the camera aperture area za and its surrounding area are relatively small, which limits the space available for placing the protective film structure 100a. It is understandable that large plate-like structures can be considered thin components, and small plate-like structures can be considered thick components. Given the limited space, the protective film structure 100a is roughly a small plate-like structure, and therefore can be roughly considered a thick component.

[0067] Please continue to refer to Figure 4 When the second film 120a is separated from the first film 110a, due to the small size and thick thickness of the protective film structure 100a and the certain rigidity of the second film 120a, it is easy for the second film 120a to be completely separated from the first film 110a, or for the second film 120a to pull the first film 110a to be separated from the display panel 200a together.

[0068] In this embodiment, during the process of the operating part 122 transmitting stress to the main body 121, the stress is dispersed at the stress dispersion structure x, thereby reducing the stress borne by the main body 121 and consequently reducing the stress transmitted from the main body 121 to the first film 110. This improves the situation where the main body 121 is completely separated from the first film 110 or the main body 121 causes the first film 110 to separate from the display panel 200, thus eliminating the need for re-alignment and bonding of the relevant film structures and improving production efficiency.

[0069] In some embodiments, please continue to refer to Figure 1 and Figure 2 Along the extension direction of the stress dispersion structure x, there are unconnected parts between the main body parts 121 located on both sides of the stress dispersion structure x.

[0070] It should be noted that "the extension direction of the stress dispersion structure x" refers to the direction in which the stress dispersion structure x extends, but does not limit the shape of the stress dispersion structure x. The stress dispersion structure x can be a structure extending in one direction or a structure extending in multiple directions. For example, if a component extends in one direction, the component is constructed to extend in a straight line. If a component extends in multiple directions, the component can be constructed to extend in a curved shape or a broken line shape, etc. The extension direction will be explained later with reference to some examples, and will not be elaborated further here.

[0071] "The existence of unconnected parts" refers to the area where the stress-dispersing structure x exists. With the stress-dispersing structure x as the boundary, the main body 121 can be considered as being divided by the stress-dispersing structure x. In conjunction with the foregoing, since the main body 121 does not become several independent parts simply because of the stress-dispersing structure x, that is, within the area where the stress-dispersing structure x is located on the main body 121, it can be roughly considered that a portion of the main body 121 is divided into two parts. When stress is transmitted to one of these two parts, due to the obstruction of the stress-dispersing structure x, the other part will not directly receive the stress transmitted from that part.

[0072] Therefore, by configuring the stress dispersion structure x as a structure that can separate a portion of the main body 121, the stress dispersion effect of the stress dispersion structure x can be further improved.

[0073] In some embodiments, please continue to refer to Figure 1 and Figure 2 The stress dispersion structure x is disposed on the second surface m2 and / or the third surface m3. The stress dispersion structure x is constructed as a notch; or, the stress dispersion structure x is constructed as a slit.

[0074] It is understandable that the notch and the slit are relative terms. The "notch" can be viewed as a groove formed on the second surface m2 and / or the third surface m3, while the "slit" can be viewed as an opening on the second surface m2 and / or the third surface m3 that is narrower than the "notch." Based on the size h1 of the stress dispersion structure x in the first direction F1, the "slit" can be approximated as a cutting line or a cutting surface. Figure 1 and Figure 2 For example, the stress dispersion structure x is provided on the third surface m3, and the stress dispersion structure x is a notch. Since the bending direction of the operating part 122 is away from the first membrane 110 during visual inspection, when the stress dispersion structure x is provided on the third surface m3, not only can the stress be dispersed by the stress dispersion structure x, but the operating part 122 can also be operated more easily.

[0075] Thus, by constructing the stress dispersion structure x, a structure is partially removed or partially separated on the main body 121, thereby forming a weak area on the main body 121. In the process of stress transmission, stress can not only be guided to this weak area (i.e., stress dispersion structure x), but also be blocked in this weak area, thus dispersing the transmitted stress in this weak area.

[0076] In some embodiments, please continue to refer to Figure 2 The stress dispersion structure x has a starting end x1 and a ending end x2. The direction from the starting end x1 to the ending end x2 intersects with the direction from the operating part 122 to the main body 121. Both the direction from the starting end x1 to the ending end x2 and the direction from the operating part 122 to the main body 121 are perpendicular to the first direction F1. The direction from the operating part 122 to the main body 121 is the second direction F2 shown in the figure.

[0077] It is understandable that when the operating part 122 separates the main body 121 from the first membrane 110 in response to an external force, the stress on the main body 121 is transmitted in the direction from the operating part 122 to the main body 121 (i.e., the second direction F2).

[0078] Thus, when the direction from the starting end x1 to the ending end x2 intersects with the second direction F2, the stress dispersion part can at least disperse the stress transmitted to the main body 121 in the second direction F2, which is more conducive to dispersing the stress acting on the main body 121 to a greater extent.

[0079] Of course, in other embodiments, the direction from the starting end x1 to the ending end x2 can also be parallel to the direction from the operating part 122 to the main body 121. That is, the direction from the starting end x1 to the ending end x2 can be the second direction F2 shown in the figure, which can also disperse stress to a certain extent. It can be set according to the specific use case, and the embodiments of this application do not impose specific limitations on it.

[0080] In some embodiments, please continue to refer to Figure 2 Along the direction from the operating part 122 to the main body part 121, the main body part 121 has a first side c1 and a second side c2 disposed opposite to each other. A straight line passing through the starting end x1 and the ending end x2 is defined as a reference line, which passes through the first side c1 and the second side c2. That is, the starting end x1 of the stress dispersion structure x is approximately located at or near the first side c1, and the ending end x2 of the stress dispersion structure x is approximately located at or near the second side c2.

[0081] In this way, the structure of the main body 121 can be further utilized to construct the stress dispersion structure x, thereby further improving the stress dispersion effect of the stress dispersion structure x on the main body 121.

[0082] In some embodiments, please continue to refer to Figure 2 The reference line is perpendicular to the direction from the operating unit 122 to the main body 121. That is, the direction from the starting end x1 to the ending end x2 is perpendicular to the direction from the operating unit 122 to the main body 121. Specifically, the direction from the starting end x1 to the ending end x2 is the third direction F3 shown in the figure, and the direction from the operating unit 122 to the main body 121 is the second direction F2 shown in the figure. The first direction F1, the second direction F2, and the third direction F3 are perpendicular to each other.

[0083] In this way, we can further construct the approximate extension direction of the stress dispersion structure x to disperse the stress to a greater extent.

[0084] Figure 5 for Figure 1 The diagram shows a top view of the second membrane 120 in one embodiment of the protective membrane structure 100; for ease of explanation, only the content related to the embodiments of this application is shown.

[0085] In some embodiments, please refer to Figure 5 The starting end x1 is located on the first side c1, and the ending end x2 is located on the second side c2. It can be understood that, in the second direction F2, since the stress-dispersing structure x extends from the first side c1 to the second side c2, it can disperse stress in the main body 121 at various points along the second direction F2 as much as possible. Thus, the stress-dispersing effect can be further improved by making greater use of the dimensions of the main body 121 along the third direction F3.

[0086] In some embodiments, please continue to refer to Figure 1 and in conjunction with reference Figure 2 and Figure 5 The stress-dispersing structure x is constructed as a longitudinal structure.

[0087] Thus, by constructing the stress-dispersing structure x as a longitudinal structure, the second membrane 120 can possess a certain strength to better achieve its protective function. Simultaneously, this longitudinal structure also serves to disperse stress.

[0088] Figure 6 It shows Figure 1 The protective membrane structure 100 shown in the figure is a top view of the second membrane 120 in another embodiment; Figure 7 It shows Figure 1The diagram shows a top view of the second membrane 120 in another embodiment of the protective membrane structure 100 shown in the figure. Figure 8 It shows Figure 1 The diagram shows a top view of the second membrane 120 in another embodiment of the protective membrane structure 100; for ease of explanation, only the content related to the embodiments of this application is shown.

[0089] In some embodiments, please refer to Figure 6 The stress dispersion structure x is constructed including straight line segments. In other embodiments, please refer to... Figure 7 The stress dispersion structure x is constructed including curved segments. In some other embodiments, please refer to... Figure 8 The stress dispersion structure x-construction includes a broken line segment. Of course, in other embodiments, the stress dispersion structure x-construction may include at least one of a curved segment, a broken line segment, or a straight line segment. For example, the stress dispersion structure x-construction may include both curved segments and broken line segments.

[0090] It can be understood that when the stress dispersion structure x is a straight line segment, there is only one direction of extension for the stress dispersion structure x. When the stress dispersion structure x is a broken line segment or a curved segment, there can be multiple directions of extension for the stress dispersion structure x.

[0091] Thus, the stress dispersion structure x can be flexibly constructed, and the embodiments of this application do not impose specific limitations on this.

[0092] In some embodiments, please continue to refer to Figure 2 and Figure 5 The stress dispersion structure x includes a plurality of spaced portions arranged at intervals along its extension direction. That is, the stress dispersion structure x is discontinuous. For example, the stress dispersion structure x can be roughly considered as a structure with a seam. In another embodiment, please continue to refer to... Figure 6 to Figure 8 The stress dispersion structure x extends along its extension direction. That is, the stress dispersion structure x is continuous. It can be understood that continuity is relative to discontinuity.

[0093] Thus, the relevant stress dispersion structure x can be set according to the specific usage and the stress conditions in the relevant space. This application embodiment does not impose specific limitations on this.

[0094] In some embodiments, please continue to refer to Figure 1 Along the first direction F1, the ratio of the size h1 of the stress dispersion structure x to the size h2 of the main body 121 is 0.5. This further improves the reliability of the main body 121, allowing a portion of the main body 121 to contact the first membrane 110 while the other portion remains separate from it.

[0095] In some embodiments, please continue to refer to Figure 1 The main body 121 has a third side c3 connected to the operation part 122, and a fourth side c4 disposed opposite to the third side c3. That is, the third side c3 and the fourth side c4 are disposed relative to the second direction F2. The orthogonal projection of the stress dispersion structure x on the first surface m1 is located on the side of the through hole k closer to the fourth side c4.

[0096] This further facilitates the exposure of the through hole k when the operating part 122 drives the main body 121 to separate from the first membrane 110.

[0097] Figure 9 A schematic diagram of a touch display module according to one embodiment of this application is shown; for ease of explanation, only the content related to the embodiment of this application is shown. The touch display module includes not only the display panel 200, but also other functional components constituting the touch display module. Figure 9 Only the display panel 200 is shown in the image.

[0098] Based on the same inventive concept, please refer to Figure 9 This application also provides a touch display module, including a display panel 200 and a protective film structure 100 as described in any of the above embodiments. A first film 110 is applied to the display panel 200 on the side opposite to the main body 121, and a through hole k is located opposite to the camera hole area z on the display panel 200. The advantages of the protective film structure 100 in the above embodiments are also present in the touch display module of this application, and will not be repeated here.

[0099] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0100] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A protective film structure, characterized in that, include: A first membrane has a first surface and a through hole formed along a first direction; and The second membrane is a single-layer membrane structure made of polyethylene terephthalate; the second membrane includes a main body portion attached to the first surface and an operating portion connected to the main body portion; the orthographic projection of the through hole on the first surface is located within the orthographic projection of the main body portion on the first surface; The main body has a second surface and a third surface disposed opposite to each other along the first direction, the second surface being attached to the first surface, and a stress-dispersing structure being provided on the third surface of the main body; the stress-dispersing structure is constructed as an elongated notch and extends in a direction perpendicular to the operating part pointing towards the main body; along the direction from the operating part to the main body, the main body has a first side and a second side disposed opposite to each other; the starting end of the stress-dispersing structure is located on the first side, and the ending end of the stress-dispersing structure is located on the second side; along the first direction, the ratio of the size of the stress-dispersing structure to the size of the main body is 0.5; The main body has a third side connected to the operating part and a fourth side disposed opposite to the third side; the orthographic projection of the stress dispersion structure on the first surface is located on the side of the through hole closer to the fourth side, and does not overlap with the through hole in a first direction; the first direction is perpendicular to the first surface.

2. The protective film structure according to claim 1, characterized in that, Along the extending direction of the stress dispersion structure, there are unconnected portions between the main body portions located on both sides of the stress dispersion structure.

3. The protective film structure according to claim 1 or 2, characterized in that, The direction from the starting end to the ending end intersects with the direction from the operating part to the main body; and both the direction from the starting end to the ending end and the direction from the operating part to the main body are perpendicular to the first direction.

4. The protective film structure according to claim 1 or 2, characterized in that, A reference line is defined as the straight line passing through the starting end and the ending end, and the reference line passes through the first side and the second side.

5. The protective film structure according to claim 4, characterized in that, The reference line is perpendicular to the direction in which the operating part points towards the main body.

6. The protective film structure according to claim 1 or 2, characterized in that, The stress dispersion structure includes curved segments, broken line segments, or straight line segments.

7. The protective film structure according to claim 1 or 2, characterized in that, The stress dispersion structure includes a plurality of spaced portions arranged at intervals along the extension direction of the stress dispersion structure.

8. The protective film structure according to claim 1 or 2, characterized in that, The stress dispersion structure extends along the extension direction of the stress dispersion structure.

9. The protective film structure according to claim 1 or 2, characterized in that, The protective film structure also includes an adhesive layer, and the main body is attached to the first surface by means of the adhesive layer.

10. A touch display module, characterized in that, It includes a display panel and a protective film structure as described in any one of claims 1-9; the first film body is disposed on the side of the display panel opposite to the main body; the through hole is located in the camera hole area on the display panel.

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