Touch sensing key protection film, mobile phone shell and film pasting device

Abstract

The utility model relates to a touch control induction key protection film, a mobile phone shell and a film pasting device, the touch control induction key protection film is pasted on the end face of a touch control induction key on the side edge of a mobile phone, the touch control induction key protection film is a long circular film, and the area of the touch control induction key protection film is not larger than that of the end face of the touch control induction key on the side edge of the mobile phone. The touch sensing key protection film comprises a conductive adhesive layer, an explosion-proof film layer, a glass layer and an oil-stain-proof layer which are arranged in sequence, the conductive adhesive layer is bonded with the end face of the touch sensing key on the side edge of the mobile phone, the thickness of the explosion-proof film layer is 0.08-0.12 mm, and the thickness of the glass layer is 0.18-0.22 mm. According to the utility model, the touch sensing key protection film is adhered to the mobile phone side touch sensing key through the conductive adhesive, so that the touch sensing key protection film is stably connected with the mobile phone side touch sensing key, and the mobile phone side touch sensing key is protected through the toughened glass layer and the explosion-proof film layer, so that the mobile phone side touch sensing key is prevented from being scratched.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone accessories, in particular to a touch sensing key protective film, a mobile phone shell with the touch sensing key protective film and a film sticking device for the touch sensing key protective film. Background Art

[0002] With the continuous development of mobile phone technology, mobile phones have brought a lot of convenience to people's lives. Many functions of mobile phones are realized through touch screens, and many operations of existing software are integrated into the touch screen. However, some operations are not very convenient to operate using the touch screen, so physical buttons are still used separately, such as volume buttons and lock screen buttons. Some mobile phones will have touch-sensitive buttons on the side to achieve more quick operations, such as fingerprint unlocking, sliding control to zoom in and out of images, image switching, zooming in and out when taking pictures, sliding control to adjust the volume, touching to take pictures, answering calls and other operations.

[0003] The touch sensing keys on the side of a mobile phone are generally sunken or flush with the surface of the middle frame of the mobile phone, making it difficult for the user's fingers to align with the touch sensing keys on the side of the mobile phone during use, resulting in a poor user experience. At the same time, a mobile phone case generally wraps the middle frame of the mobile phone. In order not to affect the touch operation of the touch sensing keys on the side of the mobile phone, the mobile phone protective case generally has holes at the touch sensing keys on the side of the mobile phone, and the touch sensing keys on the side of the mobile phone are exposed from the holes, so that the user's fingers can touch the touch sensing keys on the side of the mobile phone. Because the touch sensing keys on the side of the mobile phone are exposed and not protected by the mobile phone case, they are easily bumped and scratched, affecting the safe use of the touch sensing keys on the side of the mobile phone. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the utility model provides a touch sensing key protective film, a mobile phone case with the touch sensing key protective film, and a film sticking device for the touch sensing key protective film.

[0005] In the first aspect, the utility model provides a touch sensing key protective film, which is attached to the end face of the touch sensing key on the side of a mobile phone, the touch sensing key protective film is an oblong membrane, the area of ​​the touch sensing key protective film is not larger than the area of ​​the end face of the touch sensing key on the side of the mobile phone, the touch sensing key protective film includes a conductive adhesive layer, an explosion-proof film layer, a glass layer and an anti-oil layer arranged in sequence, the conductive adhesive layer is bonded to the end face of the touch sensing key on the side of the mobile phone, the thickness of the explosion-proof film layer is 0.08-0.12 mm, and the thickness of the glass layer is 0.18-0.22 mm.

[0006] In some embodiments, the anti-oil layer is an AF anti-fingerprint oil coating sprayed and cured on the surface of the glass layer.

[0007] In some embodiments, the edge of the outer end surface of the touch sensing key protective film is set to be a rounded chamfer, and the edge of the inner end surface of the touch sensing key protective film is not set to be a chamfer; a connecting end is set at one end of the touch sensing key protective film, and the two outer side walls of the connecting end in the width direction are both set inwardly with an arc-shaped groove, and the arc-shaped groove is set away from the center.

[0008] In some embodiments, the explosion-proof film layer has a thickness of 0.1 mm, and the glass layer has a thickness of 0.2 mm.

[0009] In the second aspect, the utility model also provides a mobile phone case with a touch sensing key protective film, comprising a case and the touch sensing key protective film described in the first aspect, the side wall of the case is penetrated with an oblong hole at a position corresponding to the touch sensing key on the side of the mobile phone, the touch sensing key protective film is located in the oblong hole and is adhered to the end face of the touch sensing key on the side of the mobile phone, and there is a gap between the outer wall of the touch sensing key protective film and the inner wall of the oblong hole for the touch sensing key protective film to move.

[0010] In some embodiments, the oblong hole is provided with a connecting portion and a avoiding portion, the connecting portion is interference fit with the connecting end of the touch sensing key protective film, and the avoiding portion is clearance fit with the movable end of the touch sensing key protective film.

[0011] In the third aspect, the utility model also provides a film pasting device for a touch sensing key protective film, comprising a jig and the touch sensing key protective film described in the first aspect, the jig matches the shape of the mobile phone, the jig is buckled onto the mobile phone from the back of the mobile phone, the side wall of the jig is provided with a film pasting hole at the touch sensing key on the side of the mobile phone, the film pasting hole matches the shape of the touch sensing key protective film, the touch sensing key protective film is positioned with the touch sensing key on the side of the mobile phone through the film pasting hole, and is pasted and fixed to the end face of the touch sensing key on the side of the mobile phone through the conductive adhesive layer of the touch sensing key protective film.

[0012] In some embodiments, a positioning sheet and a release film are further included, wherein the touch sensing key protective film is arranged between the positioning sheet and the release film, and the release film is separated from the conductive adhesive layer of the touch sensing key protective film before film pasting, and the touch sensing key protective film is connected to the jig through the positioning sheet, and the positioning sheet has a connecting area and a first film pasting area, and the connecting area is fixedly connected to the jig, and the touch sensing key protective film is located in the first film pasting area, and the first film pasting area is covered on the outer side of the side wall of the jig during the film pasting process so that the touch sensing key protective film is embedded in the film pasting hole.

[0013] In some embodiments, the positioning sheet further has a second film pasting area, which covers the front side of the jig during the film pasting process. The positioning sheet is provided with positioning holes in both the second film pasting area and the first film pasting area. The jig is correspondingly provided with positioning blocks. During the film pasting process, the positioning sheet is positioned and connected to the jig through the cooperation of the positioning holes and the positioning blocks.

[0014] In some of the embodiments, the second film-sticking area of ​​the positioning sheet is provided with a screen protective film, and the screen protective film is stuck on the screen of the mobile phone during the film-sticking process.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the touch sensing key protective film is adhered to the touch sensing keys on the side of the mobile phone by conductive glue, so that the touch sensing key protective film is stably connected to the touch sensing keys on the side of the mobile phone, and does not affect the normal use of the touch sensing keys on the side of the mobile phone. The touch sensing keys on the side of the mobile phone are protected by the tempered glass layer and explosion-proof film layer of the touch sensing keys on the side of the mobile phone to prevent the touch sensing keys on the side of the mobile phone from being scratched. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the planar structure of the film sticking device according to an embodiment of the present application.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the touch sensing key protection film of the embodiment of the present application attached to the mobile phone.

[0018] Figure 3 Schematic diagrams of two planar structures of the touch sensing key protection film according to the embodiment of the present application.

[0019] Figure 4 Schematic diagram of the hierarchical structure of the touch sensing key protective film of the embodiment of the present application.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of a mobile phone, a fixture, and a touch sensor key protective film according to an embodiment of the present application.

[0021] Figure 6 It is a schematic diagram of the planar structure of a mobile phone case and two touch-sensitive key protective films combined in an embodiment of the present application.

[0022] Reference numerals: 101, mobile phone; 102, touch sensing key on the side of the mobile phone;

[0023] 1. Touch sensor key protective film; 11. Conductive adhesive layer; 12. Explosion-proof film layer; 13. Glass layer; 14. Anti-oil layer; 15. Round chamfer; 16. Connection end; 17. Arc groove; 18. Movable end;

[0024] 2. Mobile phone case; 21. Shell; 22. Long round hole; 23. Gap; 24. Connecting part; 25. Air-avoiding part;

[0025] 3. Film sticking device;

[0026] 4. Jig; 41. Film sticking hole; 42. Positioning groove; 43. Positioning block;

[0027] 5. Positioning sheet; 51. Connecting area; 52. First film pasting area; 53. Bump; 54. Second film pasting area; 55. Positioning hole; 56. Folding mark;

[0028] 6. Release film;

[0029] 7. Screen protector. DETAILED DESCRIPTION

[0030] The specific implementation modes of the present utility model are introduced with reference to the accompanying drawings.

[0031] refer to Figure 1 The figure shows a film pasting device 3 for a touch sensing key protective film 1, the left side of the figure is a jig 4, the middle part of the figure is the touch sensing key protective film 1, and the right side is the screen protective film 7. The touch sensing key protective film 1 and the screen protective film 7 are connected to the jig 4 through a positioning sheet 5. During the film pasting process, the jig 4 is used to position the mobile phone 101, so that the touch sensing key protective film 1 and the screen protective film 7 can be better positioned with the mobile phone 101, and the touch sensing key protective film 1 and the screen protective film 7 can be accurately pasted on the mobile phone 101.

[0032] refer to Figures 2 to 4 A touch sensing key protective film 1 is attached to the end face of the touch sensing key 102 on the side of a mobile phone. The touch sensing key protective film 1 is an oblong film. The area of ​​the touch sensing key protective film 1 is not larger than the area of ​​the end face of the touch sensing key 102 on the side of the mobile phone. The touch sensing key protective film 1 includes a conductive adhesive layer 11, an explosion-proof film layer 12, a glass layer 13 and an anti-oil layer 14 arranged in sequence. The conductive adhesive layer 11 is bonded to the end face of the touch sensing key 102 on the side of the mobile phone. The thickness of the explosion-proof film layer 12 is 0.08-0.12 mm, and the thickness of the glass layer 13 is 0.18-0.22 mm.

[0033] Among them, in addition to the fingerprint unlocking function, the touch sensing key 102 on the side of the mobile phone can also have functions such as sliding control to adjust the volume, sliding control to zoom in and out of the camera, touching to take pictures, answering calls, etc.

[0034] The oblong touch sensing key protection film 1 of this embodiment is adhered to the touch sensing key 102 on the side of the mobile phone by conductive glue, so that the touch sensing key protection film 1 is stably connected to the touch sensing key 102 on the side of the mobile phone, and does not affect the normal use of the touch sensing key 102 on the side of the mobile phone. The touch sensing key 102 on the side of the mobile phone is protected by the tempered glass layer 13 and the explosion-proof film layer 12 of the side touch sensing key to prevent the touch sensing key 102 on the side of the mobile phone from being scratched.

[0035] In order to prevent a large amount of oil from adhering to the surface of the side touch sensing key during use, in this embodiment, reference Figure 4 The anti-oil layer 14 is an AF anti-fingerprint oil coating sprayed and cured on the surface of the glass layer 13 .

[0036] It can be understood that, with such a configuration, the AF anti-fingerprint oil coating can repel water and grease, so that an anti-oil layer 14 that can prevent oil from adhering is formed on the surface of the glass layer 13, thereby increasing the hydrophobic, oil-draining, and anti-fouling properties of the side touch sensing keys.

[0037] In order to prevent the touch sensor key protective film 1 from scratching the user's skin, in this embodiment, Figure 3 The edge of the outer end surface of the touch sensing key protection film 1 is set as a round chamfer 15, and the edge of the inner end surface of the touch sensing key protection film 1 is not set with a chamfer; a connecting end 16 is set at one end of the touch sensing key protection film 1, and the two outer side walls of the connecting end 16 in the width direction are both inwardly provided with an arc groove 17, and the arc groove 17 is set away from the center.

[0038] It should be further explained that the touch sensor key protection film 1 has two outer side walls, one of which is as follows: Figure 3 The smooth outer wall shown in part a and the other is as shown in Figure 3 Part b shows an outer wall with an arc-shaped groove 17, which is used to engage with the mobile phone case 2 for positioning. The arc-shaped groove and the side wall of the connecting end 16 form a C-shaped engaging surface, so that the connecting end 16 of the touch sensing key protective film 1 can be engaged with the mobile phone case 2, wherein the depth of the arc-shaped groove does not exceed the width of the round chamfer 15 to avoid encroaching on the fingerprint recognition surface of the touch sensing key protective film 1.

[0039] It can be understood that, with such a configuration, the outer edge of the touch sensing key protective film 1 is made to have a transitional arc through the rounded chamfer 15, thereby avoiding sharp corners and cutting the user's skin. The inner edge of the touch sensing key protective film 1 is not chamfered, thereby ensuring that the inner end face of the touch sensing key protective film 1 has a larger contact area with the touch sensing key 102 on the side of the mobile phone, so that the touch sensing key protective film 1 can be more firmly adhered to the touch sensing key 102 on the side of the mobile phone.

[0040] In order to ensure that the touch sensor key protective film 1 has sufficient protection strength, in this embodiment, reference Figure 4 The thickness of the explosion-proof film layer 12 is 0.1 mm, and the thickness of the glass layer 13 is 0.2 mm.

[0041] It can be understood that, with such a configuration, the 0.1mm thick explosion-proof film layer 12 and the 0.2mm thick glass layer 13 form a diaphragm with good protective performance and moderate thickness. Through the conduction of the conductive glue, the explosion-proof film layer 12 and the glass layer 13 will not affect the electrical conduction, so that the touch sensor key 102 on the side of the mobile phone with the touch sensor key protective film 1 can normally recognize fingerprints and finger operations.

[0042] refer to Figure 3 and Figure 6 The embodiment of the present application also provides a mobile phone case 2 with a touch sensing key protective film 1, including a shell 21 and the above-mentioned touch sensing key protective film 1, the side wall of the shell 21 is penetrated with an oblong hole 22 at a position corresponding to the touch sensing key 102 on the side of the mobile phone, the touch sensing key protective film 1 is located in the oblong hole 22 and is adhered to the end surface of the touch sensing key 102 on the side of the mobile phone, and there is a gap 23 between the outer wall of the touch sensing key protective film 1 and the inner wall of the oblong hole 22 for the touch sensing key protective film 1 to move.

[0043] The mobile phone case 2 of this embodiment wraps the mobile phone 101 to provide good protection for the mobile phone 101, and protects the touch sensor keys 102 on the side of the mobile phone through the touch sensor key protective film 1, which does not affect the fingerprint recognition of the touch sensor keys 102 on the side of the mobile phone, and at the same time prevents the touch sensor keys 102 on the side of the mobile phone from being scratched or damaged, so that the mobile phone case 2 can better protect the mobile phone 101.

[0044] In order to stably connect the mobile phone shell 2 and the touch sensor key protective film 1 together, in this embodiment, reference Figure 3 and Figure 6 The oblong hole 22 is provided with a connecting portion 24 and a avoiding portion 25 . The connecting portion 24 is interference fit with the connecting end 16 of the touch sensing key protection film 1 , and the avoiding portion 25 is matched with the gap 23 of the movable end 18 of the touch sensing key protection film 1 .

[0045] It can be understood that, with such a configuration, the inner wall of the connecting portion 24 of the oblong hole 22 is engaged with the C-shaped engaging surface of the connecting end 16 of the touch sensing key protective film 1, so that the connecting portion 24 of the oblong hole 22 is engaged with the connecting end 16 of the touch sensing key protective film 1, ensuring that the touch sensing key protective film 1 and the mobile phone case 2 can be stably connected, wherein the material of the mobile phone case 2 in the oblong hole 22 area is a soft rubber material, through the soft rubber material, the connecting portion 24 of the oblong hole 22 is tightly engaged with the connecting end 16 of the touch sensing key protective film 1, and at the same time, the connecting portion 24 of the oblong hole 22 can also follow the slight movement of the connecting end 16 of the touch sensing key protective film 1; through the gap 23 between the avoidance portion 25 and the movable end 18 of the touch sensing key protective film 1, it is ensured that the movable end 18 of the touch sensing key protective film 1 has movable space, so that the touch sensing key protective film 1 can follow the touch sensing key 102 on the side of the mobile phone to perform pressing and rebounding actions.

[0046] refer to Figures 1 to 4 The embodiment of the present application also provides a film sticking device 3 for a touch sensing key protective film 1, comprising a jig 4, a positioning sheet 5, a release film 6 and the above-mentioned touch sensing key protective film 1, the jig 4 matches the shape of the mobile phone 101, the jig 4 is buckled onto the mobile phone 101 from the back of the mobile phone 101, and the side wall of the jig 4 is provided with a film sticking hole 41 at the touch sensing key 102 on the side of the mobile phone, the film sticking hole 41 matches the shape of the touch sensing key protective film 1, the touch sensing key protective film 1 is positioned with the touch sensing key 102 on the side of the mobile phone through the film sticking hole 41, and is stuck and fixed to the end face of the touch sensing key 102 on the side of the mobile phone through the conductive adhesive layer 11 of the touch sensing key protective film 1.

[0047] It needs to be further explained that Figure 1 The film sticking device 3 can stick the touch sensor key protection film 1 and the screen protection film 7 at the same time. Figure 1 The film sticking device 3 has a better alignment effect. Figure 4 It is another film sticking device 3 , the jig 4 and the touch sensing key protective film 1 are separated, and the user sticks the touch sensing key protective film 1 in the film sticking hole 41 in an aligned manner.

[0048] The film pasting device 3 of this embodiment is connected to the mobile phone 101 through the jig 4 to complete the pre-positioning of the mobile phone 101, and the film pasting hole 41 on the jig 4 is used to assist the film pasting process of the touch sensing key protective film 1. The touch sensing key protective film 1 is guided by the hole wall of the film pasting hole 41 to help the touch sensing key protective film 1 to be accurately aligned with the touch sensing key 102 on the side of the mobile phone, ensuring that the touch sensing key protective film 1 can be better pasted on the end face of the touch sensing key 102 on the side of the mobile phone.

[0049] In order to quickly complete the positioning of the touch sensing key protective film 1 and the mobile phone 101, in this embodiment, reference Figure 4 The touch sensing key protective film 1 is arranged between the positioning sheet 5 and the release film 6. The release film 6 is separated from the conductive adhesive layer 11 of the touch sensing key protective film 1 before film pasting. The touch sensing key protective film 1 is connected to the jig 4 through the positioning sheet 5. The positioning sheet 5 has a connecting area 51 and a first film pasting area 52. The connecting area 51 is fixedly connected to the jig 4. The touch sensing key protective film 1 is located in the first film pasting area 52. The first film pasting area 52 is covered on the outer side of the side wall of the jig 4 during the film pasting process so that the touch sensing key protective film 1 is embedded in the film pasting hole 41.

[0050] It needs to be further explained that the jig 4 is provided with a positioning groove 42 around the film hole 41, and the positioning sheet 5 is provided with a protrusion 53 matching the shape of the positioning groove 42. The material of the protrusion 53 can be a foam block or a plastic block, and the touch sensing key protective film 1 is detachably arranged on the protrusion 53. The protrusion 53 is aligned with the positioning groove 42, so that the touch sensing key protective film 1 can be accurately aligned with the film hole 41, ensuring that the touch sensing key protective film 1 can be accurately attached to the touch sensing key 102 on the side of the mobile phone.

[0051] It can be understood that, with such a configuration, the touch sensing key protective film 1 is connected to the jig 4 through the positioning piece 5, and the jig 4 is buckled on the mobile phone 101, thereby completing the pre-positioning of the mobile phone 101 and the touch sensing key protective film 1. By flipping the positioning piece 5, the protrusion 53 can be aligned with the positioning groove 42, so that the touch sensing key protective film 1 and the mobile phone 101 are accurately aligned, thereby accurately attaching the touch sensing key protective film 1 to the end face of the touch sensing key 102 on the side of the mobile phone.

[0052] In order to help the positioning sheet 5 and the fixture 4 to better complete the alignment during the film application process, in this embodiment, reference Figure 1 The positioning sheet 5 also has a second film pasting area 54, which covers the front side of the jig 4 during the film pasting process. The positioning sheet 5 has positioning holes 55 in both the second film pasting area 54 and the first film pasting area 52, and the jig 4 is correspondingly provided with a positioning block 43. During the film pasting process, the positioning sheet 5 is positioned and connected to the jig 4 through the cooperation of the positioning holes 55 and the positioning blocks 43.

[0053] It is understandable that with such a configuration, the positioning sheet 5 is larger, and the positioning of the two sets of positioning blocks 43 and the positioning holes 55 allows the positioning sheet 5 to be well aligned with the fixture 4, so that the touch sensing key protective film 1 can be more accurately attached to the touch sensing key 102 on the side of the mobile phone.

[0054] In order to expand the application range of the film sticking device 3, in this embodiment, reference Figure 1 The second film-sticking area 54 of the positioning sheet 5 is provided with a screen protection film 7, and the screen protection film 7 is stuck on the screen of the mobile phone 101 during the film-sticking process.

[0055] It should be further explained that the positioning sheet 5 is a plastic film with a certain rigidity and flexibility. The connecting area 51 of the positioning sheet 5 is fixed to the back of the jig 4 by ultrasonic welding, or fixed to the back of the jig 4 by adhesive. A crease 56 is set between the first film area 52 and the second film area 54 of the positioning sheet 5, and between the connecting area 51 of the positioning sheet 5 and the first film area 52, so that the first film area 52 and the second film area 54 are bent with the crease 56 as the boundary. The first film area 52 matches the outer wall of the jig 4, so that the first film area 52 can wrap the outer wall of the jig 4, and the second film area 54 is bent to the front side of the jig 4, thereby ensuring that the screen protective film 7 can be flush with the screen of the mobile phone 101, and the positioning block 43 and the positioning hole 55 are used to complete the alignment of the positioning sheet 5 and the jig 4, ensuring that the screen protective film 7 is aligned with the screen of the mobile phone 101.

[0056] It can be understood that by setting the touch sensing key protective film 1 and the screen protective film 7 on the same positioning piece 5, the positioning piece 5 can be aligned once to simultaneously stick the touch sensing key protective film 1 and the screen film, thereby expanding the use range of the film sticking device 3 and reducing the user's film sticking cost.

[0057] The film sticking device 3 for the touch-sensitive key protective film 1 of the embodiment of the present application first buckles the fixture 4 on the mobile phone 101 from the rear, so that the positioning sheet 5 is placed on one side of the fixture 4 (such as Figure 1 As shown), tear off the release film 6 on the touch sensing key protective film 1 and the screen film, flip the positioning sheet 5, so that the first film pasting area 52 is close to the outer wall of the fixture 4, and the second film pasting area 54 covers the screen of the mobile phone 101, and the two groups of positioning holes 55 and the positioning blocks 43 are aligned. At the same time, the protrusions 53 are aligned with the positioning grooves 42 to complete the alignment of the touch sensing key protective film 1 with the touch sensing keys 102 on the side of the mobile phone, and the alignment of the screen protective film 7 with the screen of the mobile phone 101. Press the protrusions 53 and the screen protective film 7 to make the touch sensing key protective film 1 stick to the touch sensing keys 102 on the side of the mobile phone, and the screen protective film 7 stick to the screen of the mobile phone 101, and then open the positioning sheet 5 to separate the positioning sheet 5 from the screen protective film 7 and the touch sensing key protective film 1 from the protrusions 53. Take the mobile phone 101 out of the fixture 4, and the film pasting of the touch sensing key protective film 1 and the screen protective film 7 is completed.

[0058] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A touch sensor key protective film, which is attached to the end surface of the touch sensor key on the side of a mobile phone, characterized in that: The touch sensing key protection film is an oblong diaphragm, the area of ​​the touch sensing key protection film is not larger than the area of ​​the end face of the touch sensing key on the side of the mobile phone, the touch sensing key protection film comprises a conductive adhesive layer, an explosion-proof film layer, a glass layer and an anti-oil layer arranged in sequence, the conductive adhesive layer is bonded to the end face of the touch sensing key on the side of the mobile phone, the thickness of the explosion-proof film layer is 0.08-0.12 mm, and the thickness of the glass layer is 0.18-0.22 mm.

2. The touch sensing key protective film according to claim 1, characterized in that: The anti-oil layer is an AF anti-fingerprint oil coating sprayed and cured on the surface of the glass layer.

3. The touch sensing key protective film according to claim 1, characterized in that: The edge of the outer end surface of the touch sensing key protective film is set as a round chamfer, and the edge of the inner end surface of the touch sensing key protective film is not set with a chamfer; a connecting end is set at one end of the touch sensing key protective film, and the two outer side walls of the connecting end in the width direction are both set inwardly with an arc-shaped groove, and the arc-shaped groove is set away from the center.

4. The touch sensing key protective film according to claim 1, characterized in that: The thickness of the explosion-proof film layer is 0.1 mm, and the thickness of the glass layer is 0.2 mm.

5. A mobile phone case, characterized in that: It comprises a shell and a touch sensing key protection film as described in any one of claims 1 to 4, wherein the side wall of the shell is penetrated with an oblong hole at a position corresponding to the touch sensing key on the side of the mobile phone, the touch sensing key protection film is located in the oblong hole and is adhered to the end face of the touch sensing key on the side of the mobile phone, and there is a gap between the outer wall of the touch sensing key protection film and the inner wall of the oblong hole for the touch sensing key protection film to move.

6. The mobile phone case according to claim 5, characterized in that: The oblong hole is provided with a connecting portion and a avoiding portion, the connecting portion is interference fit with the connecting end of the touch sensing key protection film, and the avoiding portion is clearance fit with the movable end of the touch sensing key protection film.

7. A film sticking device, characterized in that: The invention comprises a jig and a touch sensing key protective film as described in any one of claims 1 to 4, wherein the jig matches the shape of a mobile phone, the jig is buckled onto the mobile phone from the back of the mobile phone, the side wall of the jig is provided with a film sticking hole at the touch sensing key on the side of the mobile phone, the film sticking hole matches the shape of the touch sensing key protective film, the touch sensing key protective film is positioned with the touch sensing key on the side of the mobile phone through the film sticking hole, and is stuck and fixed to the end face of the touch sensing key on the side of the mobile phone through the conductive adhesive layer of the touch sensing key protective film.

8. The film sticking device according to claim 7, characterized in that: It also includes a positioning sheet and a release film, the touch sensing key protective film is arranged between the positioning sheet and the release film, the release film is separated from the conductive adhesive layer of the touch sensing key protective film before film pasting, the touch sensing key protective film is connected to the jig through the positioning sheet, the positioning sheet has a connecting area and a first film pasting area, the connecting area is fixedly connected to the jig, the touch sensing key protective film is located in the first film pasting area, and the first film pasting area is coated on the outer side of the side wall of the jig during the film pasting process so that the touch sensing key protective film is embedded in the film pasting hole.

9. The film sticking device according to claim 8, characterized in that: The positioning sheet also has a second film pasting area, which covers the front side of the jig during the film pasting process. The positioning sheet is provided with positioning holes in both the second film pasting area and the first film pasting area. The jig is correspondingly provided with positioning blocks. During the film pasting process, the positioning sheet is positioned and connected to the jig through the cooperation of the positioning holes and the positioning blocks.

10. The film sticking device according to claim 8, characterized in that: The second film-sticking area of ​​the positioning sheet is provided with a screen protection film, and the screen protection film is stuck on the screen of the mobile phone during the film-sticking process.

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