Protective film, display module and electronic device

Abstract

The protective film, display module and electronic equipment provided by the embodiment relate to the technical field of display. In the protective film, the conductive trace layer is located on the first side of the first protective layer, the conductive trace layer comprises at least one annular conductive trace structure, each annular conductive trace structure comprises a conductive trace and at least one trace opening, the conductive trace forms a tip for gathering static electricity on the corresponding conductive trace at the position of the trace opening, a conductive pin is arranged in a film layer through hole penetrating through the first side and the second side, and the conductive pin is connected with the conductive trace. Through the above protective film structure, static electricity generated on the second side can be conducted into the annular conductive trace structure through the conductive pin, and the static electricity is gathered through the tip, so that the static electricity is released through the tip, and when the protective film is torn off from the display screen, damage caused by accumulation of static electricity on the display screen can be avoided.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a protective film, a display module, and an electronic device. Background Technology

[0002] To prevent scratches on displays (such as OLED displays), a protective film can be applied to the screen, which is then removed during subsequent use. During the removal of the protective film, static electricity is generated due to friction between the film and the display. Accumulation of this static electricity on the display may cause it to burn out. Therefore, how to avoid display damage that may occur when the protective film is removed is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0003] In order to overcome the technical problems mentioned in the above technical background, this application provides a protective film, a display module, and an electronic device.

[0004] A first aspect of this application provides a protective film, comprising:

[0005] A first protective layer, wherein the first protective layer has opposing first and second sides;

[0006] A conductive trace layer is located on the first side. The conductive trace layer includes at least one annular conductive trace structure. Each annular conductive trace structure includes a conductive trace and at least one trace opening. The conductive trace forms a tip at the trace opening for accumulating static electricity on the corresponding conductive trace.

[0007] A conductive pin is disposed in a film through-hole that passes through the first side and the second side. The conductive pin is connected to the conductive trace and is used to transfer the static electricity generated on the second side to the annular conductive trace structure.

[0008] In one possible embodiment of this application, the number of the ring-shaped conductive trace structures is multiple;

[0009] Multiple ring-shaped conductive trace structures form an inner and outer nested pattern.

[0010] In one possible embodiment of this application, the number of the ring-shaped conductive trace structures is multiple;

[0011] Multiple ring-shaped conductive trace structures are arranged in an array on the first side.

[0012] In one possible embodiment of this application, the tip is disposed along the extension direction of the conductive trace layer;

[0013] Along the direction close to the opening of the trace, the line width at the tip gradually decreases.

[0014] In one possible embodiment of this application, the protective film further includes:

[0015] A second protective layer is located on the side of the conductive trace layer away from the first protective layer.

[0016] In one possible embodiment of this application, the second protective layer includes protective layer openings;

[0017] The orthographic projection of the tip onto the first protective layer lies within the orthographic projection of the opening in the protective layer onto the first protective layer.

[0018] In one possible embodiment of this application, the materials of the first protective layer and / or the second protective layer include resin materials;

[0019] Preferably, the resin material includes polyethylene terephthalate, polycarbonate, polyethylene naphthalate, or polyimide.

[0020] In one possible embodiment of this application, the material of the ring-shaped conductive trace structure includes a transparent conductive material and a non-transparent conductive material;

[0021] Preferably, the transparent conductive material includes indium tin oxide or aluminum-doped zinc oxide; the non-transparent conductive material includes silver, magnesium, aluminum or graphene.

[0022] In one possible embodiment of this application, each of the ring-shaped conductive trace structures includes multiple openings and multiple tips, and each opening is provided with two tips;

[0023] Furthermore, the multiple openings are spaced apart from each other.

[0024] A second aspect of this application provides a display module, the display module including a display screen and a protective film in any possible embodiment of the first aspect;

[0025] The protective film is located on the display screen, and the conductive pin is in contact with the display screen.

[0026] A third aspect of this application provides an electronic device, the electronic device comprising the display module described in the second aspect.

[0027] Compared to existing technologies, in the protective film provided in this embodiment, the conductive trace layer is located on the first side of the first protective layer. The conductive trace layer includes at least one annular conductive trace structure. Each annular conductive trace structure includes a conductive trace and at least one trace opening. A tip is formed at the trace opening to collect static electricity on the corresponding conductive trace. Conductive pins are disposed in the film through-holes penetrating the first and second sides, and are connected to the conductive traces. Through this protective film structure, static electricity generated on the second side can be conducted to the annular conductive trace structure via the conductive pins, and the static electricity can be collected at the tip for release. This prevents damage caused by static electricity accumulation on the display screen when the protective film is removed from the display screen. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram illustrating one type of film structure of the protective film provided in this embodiment is shown.

[0030] Figure 2 This example illustrates a distribution diagram of the ring-shaped conductive trace structure provided in this embodiment;

[0031] Figure 3 This example illustrates another distribution diagram of the ring-shaped conductive trace structure provided in this embodiment;

[0032] Figure 4 This example illustrates another distribution diagram of the ring-shaped conductive trace structure provided in this embodiment;

[0033] Figure 5 This example illustrates another distribution diagram of the ring-shaped conductive trace structure provided in this embodiment;

[0034] Figure 6 Example Figure 2 A magnified view of a portion of region A in the middle;

[0035] Figure 7 This example illustrates another film layer structure of the protective film provided in this embodiment;

[0036] Figure 8 A schematic diagram illustrating another membrane structure of the protective film provided in this embodiment is shown.

[0037] Icons: 10 - Protective film; 110 - First protective layer; 110A - First side; 110B - Second side; 1101 - Through-hole in film layer; 120 - Conductive trace layer; 1201 - Ring-shaped conductive trace structure; 12011 - Conductive trace; 12012 - Trace opening; 120111 - Tip; 130 - Conductive pin; 140 - Second protective layer; 1401 - Protective layer opening. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used 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 on this application. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0043] To address the technical problems mentioned in the background section, the inventors have innovatively designed the following technical solution, the specific implementation of which will be described in detail below with reference to the accompanying drawings.

[0044] Please refer to Figure 1 and Figure 2 , Figure 1A schematic diagram illustrating one structure of the protective film provided in this embodiment is shown. Figure 2 A schematic diagram illustrating one distribution of the annular conductive trace structure provided in this embodiment is shown. The protective film 10 may include a first protective layer 110, a conductive trace layer 120, and conductive pins 130. The first protective layer 110 may have a first side 110A and a second side 110B opposite to each other along its thickness direction.

[0045] The conductive trace layer 120 may be located on a first side 110A of the first protective layer 110. A trace pattern is formed on the first side 110A of the conductive trace layer 120. Exemplarily, the conductive trace layer 120 may include at least one annular conductive trace structure 1201. Each annular conductive trace structure 1201 may include a conductive trace 12011 and at least one trace opening 12012. At the location of the trace opening 12012, the conductive trace 12011 is disconnected. A tip 120111 is formed at the location of the trace opening on the conductive trace 12011 for accumulating static electricity on the corresponding conductive trace 12011.

[0046] The first protective layer 110 includes a film through-hole 1101 penetrating the first side 110A and the second side 110B. A conductive pin 130 is disposed in the film through-hole 1101. The conductive pin 130 is electrically connected to the annular conductive trace structure 1201 in the conductive trace layer 120. The conductive pin 130 can transfer the static electricity generated on the second side 110B to the annular conductive trace structure 1201.

[0047] Based on the structure of the protective film 10, the static electricity generated on the second side 110B can be conducted to the annular conductive trace structure 1201 through the conductive pin 130, and the static electricity can be accumulated through the tip 120111. When the protective film 10 is removed from the display screen, damage caused by the accumulation of static electricity on the display screen can be avoided.

[0048] In one possible implementation of this embodiment, the number of ring-shaped conductive trace structures 1201 can be multiple, and the multiple ring-shaped conductive trace structures 1201 can form an inner and outer nested pattern. For example, Figure 2As shown, the protective film 10 may include four annular conductive trace structures 1201. The annular conductive trace structures 1201 can be rectangular rings. The four annular conductive trace structures 1201 can have a common center O, forming a concentric rectangular ring pattern. The four annular conductive trace structures 1201 are distributed in different regions of the first protective layer 110, which can transfer static electricity generated at different locations, ensuring that static electricity generated on the second side 110B of the first protective layer 110 can be transferred to the first side 110A of the first protective layer 110. Further, the spacing between adjacent annular conductive trace structures 1201 can be the same or different. Preferably, the spacing between adjacent annular conductive trace structures 1201 is the same. It is understood that multiple annular conductive trace structures 1201 can have the same shape (e.g., Figure 2 (As shown) can also have different shapes; for example, please refer to Figure 3 The multiple ring-shaped conductive trace structures 1201 may include alternating circular ring conductive trace structures and rectangular ring conductive trace structures.

[0049] In another possible implementation of this embodiment, the number of ring-shaped conductive trace structures 1201 can be multiple, and the multiple ring-shaped conductive trace structures 1201 are arranged in an array on the first side 110A. In this embodiment, the multiple ring-shaped conductive trace structures 1201 can have the same shape and size. For example, please refer to Figure 4 Six identical ring-shaped conductive trace structures 1201 are arranged in two rows and three columns on the first side 110A. In this embodiment, the shapes and sizes of the multiple ring-shaped conductive trace structures 1201 can be different. For example, please refer to... Figure 5 Six ring-shaped conductive trace structures 1201 are arranged in two rows and three columns on the first side 110A. These six ring-shaped conductive trace structures 1201 include two of the largest size, two of the medium size, and two of the smallest size. Within the same column, one of the largest ring-shaped conductive trace structures 1201 and one of the smallest size are paired together, or two of the medium size ring-shaped conductive trace structures 1201 are paired together.

[0050] The arrangement of the annular conductive trace structure 1201 provided by the two possible implementations above can make the annular conductive trace structure 1201 relatively uniformly distributed on the first side 110A of the first protective layer 110. This allows the static electricity generated on each area of ​​the second side 110B of the first protective layer 110 to be effectively transferred to the annular conductive trace structure 1201 located on the first side 110A.

[0051] Further, please refer to Figure 6 , Figure 6 Example Figure 2 A partially enlarged schematic diagram of region A in the middle. In this embodiment, the linewidth of the tip 120111 gradually decreases along the direction approaching the trace opening 12012. The linewidth refers to the width of the conductive trace 12011 on the plane where the conductive traces are distributed and perpendicular to the extension direction of the conductive trace 12011. For each trace opening 12, at least one of the two conductive trace ports can be made into a tip 120111 to accumulate static electricity on the corresponding conductive trace 12011.

[0052] In the technical solution described above, the conductive trace layer 120 is exposed on the first side 110A of the first protective layer 110. When the operator removes the protective film 10 from the display screen, static electricity will be transferred to the conductive trace layer 120. The operator will directly contact the conductive trace layer 120, and the static electricity on the conductive trace layer 120 will cause harm to the operator. In order to solve the above technical problem, the inventors of this application provide the following solution.

[0053] Please refer to Figure 7 , Figure 7 Another schematic diagram of the protective film provided in this embodiment is illustrated. In this embodiment, the protective film 10 may further include a second protective layer 140, which is located on the side of the conductive trace layer 120 away from the first protective layer 110, and the second protective layer 140 is an insulating layer. By providing the second protective layer 140 to cover the conductive trace layer 120, the operator can be protected from electrostatic damage during the process of removing the protective film 10 from the display screen.

[0054] Furthermore, to prevent static electricity from accumulating in the conductive trace layer 120, in this embodiment, as follows: Figure 8As shown, the second protective layer 140 may further include a protective layer opening 1401. Exemplarily, the orthographic projection of the tip 120111 on the first protective layer 110 lies within the orthographic projection of the protective layer opening 1401 on the first protective layer 110. By exposing the tip 120111 through the protective layer opening 1401, it is easier to release the static electricity accumulated on the tip 120111 through a negative ion generator or grounding, thus preventing excessive static electricity from damaging the film structure of the protective film 10.

[0055] In this embodiment, both the first protective layer 110 and the second protective layer 140 are insulating layers. Both the first protective layer 110 and the second protective layer 140 are made of insulating materials. The first protective layer 110 and the second protective layer 140 can be made of the same insulating material or different insulating materials. Optionally, the materials of the first protective layer 110 and / or the second protective layer 140 may include resin materials. Exemplarily, resin materials may include, but are not limited to, polyethylene terephthalate (PET), polycarbonate (PC), polyethylene naphthalate (PEN), or polyimide (PI), etc.

[0056] In this embodiment, the ring-shaped conductive trace structure 1201 is made of a conductive material, which may include transparent conductive materials and non-transparent conductive materials. Transparent conductive materials may include, but are not limited to, indium tin oxide (ITO) or aluminum-doped zinc oxide (AZO), while non-transparent conductive materials may include, but are not limited to, silver, magnesium, aluminum, or graphene. When using a transparent conductive material to fabricate the ring-shaped conductive trace structure 1201, a conductive layer can be formed on the first layer 110A of the first protective layer 110 by sputtering, followed by etching to form the ring-shaped conductive trace structure 1201. When using a non-transparent conductive material to fabricate the ring-shaped conductive trace structure 1201, a conductive layer can be formed on the first layer 110A of the first protective layer 110 by vapor deposition or spin coating, followed by etching to form the ring-shaped conductive trace structure 1201.

[0057] Furthermore, in this embodiment, each annular conductive trace structure 1201 may include multiple openings and multiple tips 120111, with each opening corresponding to two tips, and the multiple openings being spaced apart from each other. In this way, the multiple tips 120111 are spaced apart from each other. This design facilitates the stable release of static electricity accumulated on each tip 120111, and avoids tip discharge when the tips 120111 come into contact.

[0058] This application embodiment also provides a display module, which includes a display screen and a protective film as described above. The protective film is located on the display screen to protect it, and the conductive pins 130 in the protective film 10 are in contact with the display screen. This design allows the static electricity generated by the friction between the protective film 10 and the display screen to be conducted to the annular conductive trace structure 1201 through the conductive pins when the protective film 10 is removed from the display screen. The static electricity is then collected by the pointed tip 120111, preventing damage caused by static electricity accumulation on the display screen and ensuring that the display module can be used normally after the film is removed.

[0059] Furthermore, embodiments of this application also provide an electronic device that may include the display module described above. A protective film can protect the display screen on the electronic device, preventing static electricity from accumulating on the screen and causing the electronic device to malfunction.

[0060] The protective film, display module, and electronic device provided in this embodiment include a conductive trace layer located on the first side of the first protective layer. The conductive trace layer includes at least one annular conductive trace structure. Each annular conductive trace structure includes a conductive trace and at least one trace opening. A tip is formed at the trace opening to collect static electricity on the corresponding conductive trace. Conductive pins are disposed in through-holes in the film layer penetrating the first and second sides, and are connected to the conductive traces. Through this protective film structure, static electricity generated on the second side can be conducted to the annular conductive trace structure via the conductive pins, and the static electricity can be collected and released through the tip. This prevents damage caused by static electricity accumulation on the display screen when the protective film is removed from the display screen.

[0061] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A protective film, characterized in that, include: A first protective layer, wherein the first protective layer has opposing first and second sides; A conductive trace layer is located on the first side. The conductive trace layer includes at least one annular conductive trace structure. Each annular conductive trace structure includes a conductive trace and at least one trace opening. The conductive trace forms a tip at the trace opening for accumulating static electricity on the corresponding conductive trace. A conductive pin is disposed in a film through-hole that passes through the first side and the second side. The conductive pin is connected to the conductive trace and is used to transfer the static electricity generated on the second side to the annular conductive trace structure. The number of the ring-shaped conductive trace structures is multiple, and the multiple ring-shaped conductive trace structures are evenly distributed on the first side of the first protective layer. The protective film also includes: A second protective layer is located on the side of the conductive trace layer away from the first protective layer; the second protective layer includes protective layer openings. The orthographic projection of the tip onto the first protective layer lies within the orthographic projection of the opening in the protective layer onto the first protective layer.

2. The protective film as described in claim 1, characterized in that, Multiple of the aforementioned ring-shaped conductive trace structures form an inner and outer nested pattern; or, Multiple ring-shaped conductive trace structures are arranged in an array on the first side.

3. The protective film as described in claim 1 or 2, characterized in that, The tip is positioned along the extension direction of the conductive trace layer; Along the direction close to the opening of the trace, the line width at the tip gradually decreases.

4. The protective film as described in claim 1, characterized in that, The materials of the first protective layer and / or the second protective layer include resin materials.

5. The protective film as described in claim 4, characterized in that, The resin material includes polyethylene terephthalate, polycarbonate, polyethylene naphthalate, or polyimide.

6. The protective film as described in claim 1 or 2, characterized in that, The materials used in the ring-shaped conductive trace structure include transparent conductive materials and non-transparent conductive materials.

7. The protective film as described in claim 6, characterized in that, The transparent conductive material includes indium tin oxide or aluminum-doped zinc oxide; the non-transparent conductive material includes silver, magnesium, aluminum or graphene.

8. The protective film as described in claim 1 or 2, characterized in that, Each of the ring-shaped conductive trace structures includes multiple openings and multiple tips, with each opening corresponding to two tips; Furthermore, the multiple openings are spaced apart from each other.

9. A display module, characterized in that, The display module includes a display screen and a protective film as described in any one of claims 1-8; The protective film is located on the display screen, and the conductive pin is in contact with the display screen.

10. An electronic device, characterized in that, Includes the display module as described in claim 9.

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