WO2021052118A1 - 保护膜、保护膜组件、显示屏组件及终端 - Google Patents

保护膜、保护膜组件、显示屏组件及终端 Download PDF

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Publication number
WO2021052118A1
WO2021052118A1 PCT/CN2020/111049 CN2020111049W WO2021052118A1 WO 2021052118 A1 WO2021052118 A1 WO 2021052118A1 CN 2020111049 W CN2020111049 W CN 2020111049W WO 2021052118 A1 WO2021052118 A1 WO 2021052118A1
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WO
WIPO (PCT)
Prior art keywords
protective film
display screen
release
layer
film
Prior art date
Application number
PCT/CN2020/111049
Other languages
English (en)
French (fr)
Inventor
蒋进
胡成文
李鹏飞
Original Assignee
华为技术有限公司
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Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2021052118A1 publication Critical patent/WO2021052118A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00—Presence of polyester
    • C09J2467/006—Presence of polyester in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane
    • C09J2475/006—Presence of polyurethane in the substrate

Definitions

  • the invention relates to the technical field of electronic equipment, in particular to a protective film, a protective film component, a display screen component and a terminal.
  • a protective film is often attached to the display screen of an electronic device to prevent irreversible damage such as breakage and scratching of the display screen during use.
  • the protective film is generally made of organic materials or glass. The protective film cannot be completely attached to the display screen, and the protective film cannot be firmly adhered to the display screen, and thus cannot fully and effectively protect the display screen.
  • the present application provides a protective film for completely attaching to the display screen, so that the protective film is firmly attached to the display screen, and comprehensively and effectively protects the display screen.
  • the application also provides a protective film assembly, a display screen assembly and a terminal.
  • the protective film described in the present application includes an adhesive layer, a shrink layer and an elastic layer.
  • the adhesive layer is used to adhere to the display screen, and the shrink layer is located on the side of the adhesive layer away from the display screen.
  • the material of the shrink layer includes thermoplastic polyurethane
  • the elastic layer is located on the side of the shrink layer away from the adhesive layer
  • the material of the elastic layer includes polyurethane.
  • the protective film described in this application includes the shrink layer and the elastic layer.
  • the material of the elastic layer includes polyurethane.
  • the elastic modulus of polyurethane is small and the flexibility is large, so that the protective film is soft enough, and
  • the material of the shrink layer includes thermoplastic polyurethane.
  • the thermoplastic polyurethane has good heat resistance and humidity resistance.
  • the protective film including the shrink layer will not easily deform from the periphery to the middle under high temperature or high humidity.
  • the shrinkage drives the protective film to warp, so that the protective film can always remain fully attached to the display screen, which protects the display screen in all directions, prevents the terminal from falling and causes the display screen to break, and reduces users Loss, improve user experience.
  • the protective film is sufficiently soft, when the protective film is attached to the curved display screen, the protective film can be directly attached to the curved display screen without processing the protective film first.
  • the curved surface matching the display screen is formed and then bonded, which saves the protective film bonding process flow of the curved display screen.
  • elastic materials such as polyurethane also have recoverable properties.
  • the elastic layer can quickly recover to almost no scratches. The state of the mark reduces the impact of the scratch on the display clarity of the display screen, and improves the browsing experience of the user when browsing the display interface of the display screen.
  • the elastic modulus of the protective film is 1 Gpa to 5 Gpa.
  • the modulus of elasticity is a measure of the ease of elastic deformation of a material.
  • the modulus of elasticity of the protective film in this application is 1Gpa ⁇ 5Gpa, which is 5Gpa compared to the modulus of elasticity of the existing protective film.
  • the elastic modulus of the protective film described in this application is smaller, that is, the flexibility of the protective film is greater, that is, the protective film described in this application is softer and can be completely attached to the display screen, so that The protective film can be firmly attached to the display screen to fully and effectively protect the display screen.
  • the modulus of elasticity of the protective film is 3Gpa, so that the protective film can not only fully adhere to the display screen, but the protective film also has a certain strength and will not be easily damaged. Better protect the display screen.
  • the material of the adhesive layer includes silica gel.
  • the silicone material has high light transmittance.
  • the high light transmittance adhesive layer can reduce the influence of the protective film on the display screen of the display screen and improve User experience.
  • the protective film further includes a self-healing layer provided on the surface of the elastic layer away from the adhesive layer.
  • the self-healing layer has a self-healing function.
  • the material of the self-healing layer includes acrylic resin.
  • the protective film further includes a protective layer, the protective layer is connected between the adhesive layer and the shrink layer, because the protective layer and the adhesive layer have very good adhesion. Adhesive performance, small bubbles are not easy to appear when the protective film is attached to the display screen, and when the protective film is torn off from the display screen, no glue of the adhesive layer will remain on the display screen.
  • the material of the protective layer includes polyethylene terephthalate
  • the protective layer has high light transmittance, and when the protective film is attached to the display screen, it will not affect the display screen. The clarity of the user experience is improved.
  • the protective film further includes an adhesive layer connected between the shrink layer and the elastic layer to increase the bond between the shrink layer and the elastic layer force.
  • the material of the adhesive layer includes optically transparent adhesive, which ensures that the adhesive layer is colorless and transparent, has a light transmittance of more than 90%, and has good bonding strength, and can well shrink the adhesive layer.
  • the layer and the elastic layer are adhered together to ensure the overall adhesion strength of the protective film while ensuring the light transmission performance of the protective film, thereby improving the user experience.
  • the thickness of the protective film is 50 ⁇ m to 200 ⁇ m, and the protective film described in the present application is sufficiently thin.
  • the protective film is not only effective against the inherent thickness of the display screen and The touch effect is small, and it will not affect the performance of the fingerprint under the screen and the performance of the screen sound.
  • the thickness of the protective film is 85 ⁇ m to 100 ⁇ m. If the thickness of the protective film is too thick, it will consume too much raw materials and increase the material cost. The protective film is easily curled behind the screen and is not conducive to protecting the display screen.
  • the display screen includes a functional hole
  • the protective film is provided with a through hole penetrating the protective film, and the through hole is used to expose the functional hole.
  • the through hole avoids the functional hole, so that the functional hole is exposed and directly contacts the external environment, thereby reducing the influence of the protective film on the functional hole.
  • the protective film assembly of the present application includes a first release film, a second release film, and the protective film described in any one of the above, and the protection film is connected to the first release film and the second release film Between the films, the first release film covers the surface of the adhesive layer away from the shrink layer, and the second release film covers the surface of the protective film away from the adhesive layer.
  • the protective film assembly of the present application also includes a first release film and a second release film provided on two opposite surfaces of the protection film, and the first release film and the second release film are used for The protective film is protected to prevent the protective film from being damaged during transportation or the like, and to prevent the adhesive layer of the protective film from being exposed to the air to lose its viscosity.
  • the protective film assembly further includes a first tearing portion, which is connected to the first release film and extends out of the edge of the protective film.
  • first tearing portion When the protective film needs to be attached to the display screen, the first tearing part can be held by hand to easily and quickly tear off the first release film from the protective film.
  • the first tearing part and the first release film are integrally formed.
  • the elastic modulus of the protective film is small, that is, the flexibility of the protective film is large. If the first release film is connected with an external first tearing part At this time, the thickness and hardness of the connection position of the first tearing part and the first release film are relatively large. When the first tearing part is used to tear off the first release film, the The protective film is easily deformed and is torn away following the first release film, resulting in reverse release.
  • the first tearing part and the first release film described in the present application are integrally formed, and the connection between the first tearing part and the first release film is thinner and less rigid.
  • the protective film When using the When the first tearing part tears off the first release film, the protective film will not be deformed and will be torn away following the first release film, so that the first release film can be smoothly removed from the protective film.
  • the protective film is torn off, which avoids the problem of reverse release of the protective film, and improves the user's sense of use.
  • the first hand-tear part is formed by cutting the protective film component through a half-cutting process.
  • the first release film includes a corner portion, the corner portion is connected with the first tearing portion, and the first tearing portion extends in a direction away from the corner.
  • the first tearing part is provided on the corner of the first release film, that is, the corner of the first tearing part and the first release film The two edges of the part are connected.
  • the first release film is torn off by the first tearing part, it is only necessary to apply force to the corner part through the first tearing part to be along the same time.
  • the directions in which the two sides of the corner are located quickly tear the first release film from the protective film, which improves the efficiency of tearing off the first release film.
  • the number of the first tearing part is two, and the two first tearing parts are arranged at intervals.
  • it can hold the two first tearing parts at the same time, and tear the first release film from the first protective film from multiple directions, further improving the efficiency of tearing off the first release film .
  • the protective film assembly further includes a connecting part, which is spaced apart from the first release film and connected between the two first tearing parts.
  • a connecting part which is spaced apart from the first release film and connected between the two first tearing parts.
  • the first tearing portion includes a first surface and a second surface that are opposed to each other, and the first surface and/or the second surface are rough surfaces to hold the first surface in hand.
  • the friction between the hand and the first tearing part is increased, and the problem of instability due to the surface of the first tearing part being too smooth is avoided, and it is convenient for the user to pass through the first tearing part.
  • the number of the first tearing part is multiple
  • the first release film includes a plurality of release parts
  • each of the release parts is connected to one of the first tearing parts. connection.
  • the first release film includes a plurality of independent release parts.
  • a plurality of the first release films can be used.
  • the problem that affects the bonding effect improves the bonding accuracy of the protective film and the display screen.
  • the surface of the adhesive layer facing away from the shrink layer includes a first area, a second area, and a third area, and the second area and the third area are connected to the first area.
  • the first release film includes a first release part, a second release part, and a third release part, the first release part covers the first area, and the second release part Covers the second area, the third release part covers the third area, there are three first tearing parts, the first release part, the second release part and the first part The three release parts are respectively connected with one of the first tearing parts.
  • the display surface of the display screen includes a middle area and a first edge area and a second edge area located on both sides of the middle area.
  • the edge area and the second edge area are arc-shaped areas, and the first release part can be torn away from the protective film through the first tearing part connected with the first release part to expose the The first area, after aligning the first area with the display screen, is attached to the middle area of the display surface, and then passes through the first tearing part connected with the second release part and the third release part.
  • the first release film is divided into three parts, and the protective film is laminated on the display screen step by step.
  • This stepwise bonding method is more convenient for the protective film Accurately fit on the display screen, and the bonding method is simpler and time-saving, avoiding that the protective film is not easily aligned with the display screen due to the large edge curvature of the display screen, which affects the bonding effect The problem.
  • the protective film assembly includes a second tearing portion, which is connected to the second release film and extends out of the edge of the protective film.
  • the second release film can be easily and quickly torn off from the protective film through the second tearing part.
  • the second tearing part and the second release film are integrally formed to prevent the protective film from being peeled off when the second release film is torn away from the protective film. Deformed to follow the second release film to be torn away, so that the second release film can be removed from the protective film smoothly, avoiding the problem of reverse release of the protective film, and improving the use of users sense.
  • the second tearing part is formed by cutting the protective film component through a half-cutting process.
  • the projection of the first tearing part on the second release film is spaced from the second tearing part. Therefore, it is avoided that the user grasps the second hand tearing part by mistake while grasping the first hand tearing part, and the user experience is improved.
  • the display screen assembly of the present application includes a display screen and the protective film described in any one of the above, and the adhesive layer of the protective film is adhered to the display screen.
  • the protective film is completely attached to the display screen, which ensures that the protective film has an all-round protection effect on the display screen and prevents the display screen assembly from falling.
  • the broken display screen reduces user losses and improves user experience.
  • the display screen is a 2D display screen, a 2.5D display screen or a 3D display screen.
  • the terminal described in the present application includes a casing and the above-mentioned display screen assembly, and the display screen assembly is installed on the casing.
  • the protective film is attached to the display screen of the terminal, and the protective film always remains completely attached to the display screen without shrinking and warping, ensuring the protection
  • the film plays an all-round protective effect on the display screen, prevents the terminal from falling and causes the display screen to break, reduces user losses, and improves user experience.
  • FIG. 1 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of an exploded structure of the terminal shown in FIG. 1;
  • FIG. 3 is a schematic diagram of the first partial enlarged structure of the terminal shown in FIG. 1;
  • FIG. 4 is a schematic diagram of a cross-sectional structure of a protective film in the terminal shown in FIG. 1;
  • FIG. 5 is a schematic top view of a protective film assembly provided by an embodiment of the present application.
  • Fig. 6 is a schematic diagram of an exploded structure of the protective film assembly shown in Fig. 5;
  • Fig. 7 is a schematic bottom view of the protective film assembly shown in Fig. 5;
  • Fig. 8 is a schematic cross-sectional structure view of the protective film assembly shown in Fig. 5 in the A-A direction;
  • FIG. 9 is a schematic bottom view of the second type of protective film assembly provided by an embodiment of the present application.
  • FIG. 10 is a schematic bottom view of a third protective film assembly provided by an embodiment of the present application.
  • FIG. 11 is a schematic bottom view of a fourth type of protective film assembly provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a fifth protective film module provided by an embodiment of the present application.
  • Fig. 13 is a schematic bottom view of a sixth protective film assembly provided by an embodiment of the present application.
  • the embodiments of the present application provide a terminal.
  • the terminal includes, but is not limited to, electronic devices with display functions such as mobile phones, tablet computers, multimedia players, e-book readers, notebook computers, in-vehicle devices, or wearable devices.
  • the terminal is a mobile phone as an example for specific description.
  • FIG. 1 is a schematic structural diagram of a terminal 100 according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of an exploded structure of the terminal 100 shown in FIG. 1.
  • the terminal 100 includes a housing 10, a display assembly 20, and a controller 30.
  • the display assembly 20 is installed on the housing 10.
  • the controller 30 is housed in the space between the display assembly 20 and the housing 10, and is connected to the display
  • the component 20 is electrically connected, and the controller 30 is used to control the display of the display screen component 20.
  • the housing 10 includes a frame 11 and a back cover 12, and the frame 11 surrounds the periphery of the back cover 12.
  • the display screen assembly 20 is installed on the side of the frame 11 away from the back cover 12. That is, the display screen assembly 20 and the back cover 12 are respectively installed on both sides of the frame 11.
  • the display screen assembly 20 is usually placed toward the user, and the back cover 12 is placed away from the user.
  • the display screen assembly 20 includes a display screen 21 and a protective film 22, and the protective film 22 is attached to the display screen 21.
  • the display screen 21 is integrated with a display function, a touch sensor function and a fingerprint image collection function.
  • the display screen 21 is a 3D display screen, that is, the display screen 21 is a curved screen with a curved edge.
  • the display screen 21 includes a display surface 210 and a function hole 220. When the user uses the terminal 100, the display surface 210 of the display screen 21 is usually placed toward the user.
  • the display surface 210 includes a middle area 211 and a first edge area 212 and a second edge area 213 connected to both sides of the middle area 211.
  • the middle area 211 is the main display area of the display surface 210, that is, the middle display part.
  • the first edge area 212 and the second edge area 213 are edge areas on both sides of the display surface 210, and the first edge area 212 and the second edge area 213 are arc-shaped areas with a relatively large curvature.
  • the first edge area 212 and the second edge area 213 have the same size and shape, and are symmetrically arranged on both sides of the middle area 211.
  • the function hole 220 is an earpiece hole provided in the middle area 211 of the display surface 210.
  • the function hole 220 may also be a camera hole or a display lamp hole.
  • the size and shape of the first edge area 212 and the second edge area 213 are different, and the display screen may also be a 2D display screen or a 2.5D display screen, which is not specifically limited in this application. .
  • FIG. 3 is a schematic diagram of a partial enlarged structure of the I area of the terminal 100 shown in FIG. 1.
  • the protective film 22 is attached to the display surface 210 of the display screen 21.
  • the size and shape of the protective film 22 are adapted to the size and shape of the display surface 210, the protective film 22 is completely attached to the display surface 210, and the sides of the protective film 22 are aligned with the sides of the display screen 21.
  • the distance L between the edge of the protective film 22 and the edge of the display screen 21 is 1 mm, so as to ensure that the protective film 22 has a good bonding effect on the display surface 210, and the protective film 22 is not prone to curling.
  • the protective film 22 always remains completely attached to the display screen 21 without shrinking and warping, which ensures that the protective film 22 has an all-round protective effect on the display screen 21 and prevents the display screen 21 caused by the terminal 100 falling. Fragmentation reduces user losses and improves user experience.
  • the protective film 22 is provided with a through hole 22a penetrating through the protective film 22.
  • the through hole 22a penetrates through two opposite surfaces of the protective film 22 to avoid the function hole 220 on the display screen 21, so that the function hole 220 is exposed and directly contacts the external environment.
  • the sound emitted by the functional hole 220 does not need to be directly transmitted to the external environment through the protective film 22, which reduces the influence of the protective film 22 on the functional hole 220 and ensures the normal transmission of the sound emitted by the functional hole 220.
  • the shape and size of the through hole 22 a match the shape and size of the functional hole 220 on the display screen 21. It should be noted that in other embodiments, the size of the through hole may be larger than the size of the functional hole, as long as the functional hole can be exposed.
  • the protective film when the display screen is further provided with a camera hole, the protective film may also be provided with a through hole that avoids the camera hole, so that the camera hole is exposed The protective film prevents light from entering and exiting the imaging hole through the protective film, avoids loss caused by light passing through the protective film, and ensures the imaging effect of the camera of the terminal.
  • FIG. 4 is a schematic cross-sectional structure diagram of the protective film 22 of the terminal 100 shown in FIG. 1.
  • the protective film 22 includes an adhesive layer 221, a protective layer 222, a shrink layer 223, an adhesive layer 224, an elastic layer 225 and a self-healing layer 226.
  • the shrink layer 223 is located on one side of the adhesive layer 221, and the elastic layer 225 is located on the shrink layer 223. The side away from the adhesive layer 221.
  • the protective layer 222 is connected between the adhesive layer 221 and the shrink layer 223, the adhesive layer 224 is connected between the shrink layer 223 and the elastic layer 225, and the self-healing layer 226 is provided on the surface of the elastic layer 225 away from the adhesive layer 221.
  • the adhesive layer 221, the protective layer 222, the shrink layer 223, the adhesive layer 224, the elastic layer 225, and the self-healing layer 226 are stacked in this order.
  • the surface of the adhesive layer 221 facing away from the protective layer 222 is attached to the display surface 210 of the display screen 21.
  • the protective film 22 of the present application includes a shrink layer 223 and an elastic layer 225.
  • the elastic layer 225 has good elasticity, making the protective film 22 soft enough, and the shrink layer 223 can also prevent the protective film 22 from shrinking and warping under different environmental conditions.
  • the protective film 22 can be completely attached to the large curvature of the display screen 21, to protect the display screen 21 in all directions, prevent the terminal 100 from falling and cause the display screen 21 to break, reduce user losses, and improve users Experience.
  • the protective film 22 is sufficiently soft, when the protective film is attached to the display screen 21, the protective film 22 can be directly attached to the display screen 21, without the need to process the protective film 22 to be similar to the display screen 21.
  • the matching curved surfaces are then laminated, which saves the protective film bonding process flow of the display screen 21.
  • the adhesive layer 221 adheres the protective film 22 to the display surface 210.
  • the thickness of the adhesive layer 221 is 10 ⁇ m to 50 ⁇ m.
  • the material of the adhesive layer 221 includes silica gel.
  • the adhesive layer 221 made of silica gel not only fits well with the display screen 21 without affecting the screen-related functions of the display screen 21 such as fingerprint unlocking, but also has high light transmittance and can The influence of the protective film 22 on the display screen of the display screen 21 is reduced, and the user experience is improved.
  • the surface where the adhesive layer 221 is attached to the display surface 210 that is, the surface of the adhesive layer 221 facing away from the shrink layer 223, includes a first area, a second area, and a third area.
  • the first area is attached to the middle area 211 of the display surface 210.
  • the second area and the third area are connected to both sides of the first area, the second area and the third area are the same in shape and size, and the second area and the third area are respectively It is attached to the first edge area 212 and the second edge area 213 of the display surface 210.
  • the adhesive layer may also be made of other transparent adhesive materials such as acrylic glue.
  • the protective layer 222 is provided on the surface of the adhesive layer 221 facing away from the display screen 21.
  • the thickness of the protective layer 222 is 12 ⁇ m to 15 ⁇ m.
  • the material of the protective layer 222 includes polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • the protective layer 222 has high light transmittance to ensure the clarity of the display screen 21, and because the protective layer 222 and the adhesive layer 221 have good adhesion performance, the protective film 22 is attached to the display screen 21. Small bubbles are not prone to appear, and when the protective film 22 is removed from the display screen 21, the glue of the adhesive layer 221 will not remain on the display screen 21.
  • the shrink layer 223 is provided on the surface of the protective layer 222 facing away from the adhesive layer 221.
  • the thickness of the shrink layer 223 is 9 ⁇ m to 15 ⁇ m.
  • the material of the shrink layer 223 includes Thermoplastic Polyurethanes (TPU). Thermoplastic polyurethane has good heat resistance and humidity resistance.
  • the shrink layer 223 will not easily deform and shrink from the periphery to the middle to cause the protective film 22 to warp, that is, the protective film 22 It can always remain fully attached to the large-curved display screen 21, and protect the display screen 21 in an all-round way, preventing the terminal 100 from falling and causing the display screen 21 to break, reducing user losses and improving user experience.
  • the adhesive layer 224 is connected to the surface of the shrink layer 223 away from the protective layer 222.
  • the thickness of the adhesive layer 224 is 3 ⁇ m-10 ⁇ m.
  • the material of the adhesive layer 224 includes Optically Clear Adhesive (OCA).
  • OCA Optically Clear Adhesive
  • the adhesive layer 224 made of optically clear adhesive is colorless and transparent, has a light transmittance of over 90%, and has good bonding strength. Bonding the shrink layer 223 and the elastic layer 225 together ensures the overall adhesion strength of the protective film 22 while ensuring the light transmission performance of the protective film 22, which improves the user experience.
  • the elastic layer 225 is connected to the surface of the adhesive layer 224 away from the shrink layer 223.
  • the thickness of the elastic layer 225 is 10 ⁇ m-100 ⁇ m.
  • the material of the elastic layer 225 includes polyurethane (PU).
  • the elastic modulus of polyurethane is smaller and the flexibility is larger, so as to ensure that the elastic modulus of the protective film 22 including the elastic layer 225 is kept within a proper range.
  • the film 22 is soft enough so that the protective film 22 can be completely attached to the display screen 21 with a large curvature.
  • polyurethane also has recoverable properties. When a deep scratch is formed on the protective film 22, the elastic layer 225 can quickly recover to a state where there is almost no scratch.
  • Polyurethane has good heat resistance and good cohesive force, which is beneficial to improve the heat resistance, wettability and stability of the entire protective film 22.
  • the self-healing layer 226 is disposed on the surface of the elastic layer 225 away from the adhesive layer 224.
  • the thickness of the self-healing layer is 5 ⁇ m-10 ⁇ m.
  • the material of the self-healing layer 226 includes acrylic resin.
  • the thickness of the protective film 22 is too thick, too much raw material will be consumed and the material cost will be increased.
  • the thickness of the protective film 22 is too thin, and the protective film 22 is easily curled after being attached to the display screen 21 and is not conducive to protecting the display screen 21.
  • the thickness of the protective film 22 is 85 ⁇ m-100 ⁇ m, so that the protective film 22 will not affect the inherent thickness of the terminal 100 and the touch of the display 21, and will not affect the performance of fingerprints under the screen and the screen after the film is attached. Sound performance. It can be understood that in other embodiments, the thickness of the protective film may be any value between 50 ⁇ m and 200 ⁇ m, which is not specifically limited in this application.
  • the elastic modulus of the protective film 22 is 3 Gpa.
  • the modulus of elasticity is a measure of the ease of elastic deformation of the material.
  • the modulus of elasticity of the protective film 22 is 3 Gpa, and the protective film 22 is not only prone to elastic deformation, so that the protective film 22 can be completely attached to the curve.
  • the large display screen 21 also has a certain strength, which will not be easily damaged, and the display screen 21 can be better protected. It can be understood that in other embodiments, the elastic modulus of the protective film can be any value between 1 Gpa and 5 Gpa, which is not specifically limited in this application.
  • FIG. 5 is a schematic top view of a protective film assembly 200 provided by an embodiment of the present application
  • FIG. 6 is an exploded structural schematic view of the protective film assembly 200 shown in FIG.
  • the protective film 20 in the protective film assembly 200 shown in 6 is in a state where the protective film 10 in the terminal 100 shown in FIG. 1 is not attached to the display screen 210.
  • the protective film assembly 200 includes a protective film 22, a first release film 40, a second release film 50, a first tearing part 60 and a second tearing part 70.
  • the protective film 22 is connected between the first release film 40 and the second release film 50, the first release film 40 covers the surface of the adhesive layer 221 away from the shrink layer 223, and the second release film 50 covers the surface of the protective film 22 away from the adhesive layer 221, that is, the second release film 50 covers the surface of the self-healing layer 226 away from the adhesive layer 221, that is, the first release film 40 and
  • the second release film 50 respectively covers the two opposite surfaces of the protective film 22 to protect the protective film 22 to prevent the protective film 22 from being damaged during transportation, etc., and to prevent the adhesive layer 224 of the protective film 22 from being exposed to air Loses its stickiness.
  • the first tearing part 60 is connected to the first release film 40 and extends out of the edge of the protective film 22.
  • the second tearing part 70 is connected to the second release film 50 and extends out
  • FIG. 7 is a bottom view of the protective film assembly 200 shown in FIG. 5.
  • the protective film 22 is rectangular with rounded corners.
  • the shape and size of the first release film 40 and the protective film 22 are the same.
  • the first release film 40 includes a top side 41, a first side 42 and a corner 43.
  • the top edge 41 is the edge of the first release film 40 close to the through hole 22a
  • the first side edge 42 is connected to the top edge 41
  • the part of the first release film 40 at the junction of the top edge 41 and the side edge 43 is a corner. 43.
  • the first tearing part 60 is connected to the edge of the first release film 40. Specifically, the first tearing portion 60 is connected to the corner portion 43 and extends in a direction away from the corner portion 43. That is, the first tearing part 60 is connected to the top edge 41 and the first side 42.
  • Force 43 can simultaneously tear the first release film 40 from the protective film 22 in the two directions where the top edge 41 and the first side edge 42 are located, which improves the efficiency of tearing off the first release film 40.
  • the first tearing part 60 and the first release film 40 are integrally formed.
  • the first tearing portion 60 is formed by the protective film assembly 200 in a half-cutting process. It is understandable that in other embodiments, the first tearing part may not be integrally formed with the first release film, and the first tearing part may also be formed under other processes. This is not specifically limited.
  • the elastic modulus of the protective film 22 is small, and the flexibility is greater, that is, the protective film 22 is softer. If the first tearing part 60 is connected to the first release film 40 in an external manner, the thickness and hardness of the connection position between the first tearing part 60 and the first release film 40 are relatively large. The hand 60 tears the first release film 40 away from the protective film 22.
  • the protective film 22 with a low elastic modulus is easily deformed and is torn and taken away by the first release film 40 with a high elastic modulus.
  • the first release film 40 is the first release film 40, the first release film 40 is not separated from the protective film 22, but the first release film 40 and the protective film 22 are torn away from the second release film 50 together.
  • the first tearing portion 60 and the first release film 40 are integrally formed, and the thickness and hardness of the joint between the first tearing portion 60 and the first release film 40 are small.
  • the protective film 22 will not be deformed and will be torn off along with the first release film 40, ensuring that the first release film 40 can be smoothly removed. It is separated from the relatively soft protective film 22 to avoid the problem of reverse release of the protective film 22, so that the protective film 22 can be smoothly attached to the display screen 21, and the user experience is provided.
  • FIG. 8 is a schematic cross-sectional structure diagram of the protective film assembly 200 shown in FIG. 5 along the A-A direction.
  • the first tearing part 60 includes a first surface 61 and a second surface 62 that are arranged oppositely.
  • the first surface 61 and the second surface 62 are rough surfaces to improve the surface roughness of the first tearing part 60 and increase the user's grip.
  • the frictional force when holding the first tearing part 60 will not cause the problem of instability due to the surface of the first tearing part 60 being too smooth, which is more convenient for the user to operate the first tearing part 60 and improves the user Experience.
  • the rough surface can be formed by coating a rough material on the first surface 61 and the second surface 62, or can be formed by pasting a concave-convex structure layer on the first surface 61 and the second surface 62, or by forming a rough surface on the first surface 61 and the second surface 62.
  • the convex structure is provided on the second surface 61 and the second surface 62 as long as it can prevent the user from slipping off when holding the first tearing part 60. It is understandable that in other embodiments, only the first surface of the first tearing portion may be a rough surface, or only the second surface of the first tearing portion may be a rough surface. .
  • the second release film 50 and the first release film 40 respectively cover two opposite surfaces of the protective film 22.
  • the second release film 50 and the first release film 40 have the same shape and size.
  • the second release film 50 includes a second side 51 facing away from the first side 42.
  • the second tearing part 70 is connected to the edge of the second release film 50.
  • the projection of the second tearing part 70 on the first release film 40 is spaced from the first tearing part 60, that is, the projection of the second tearing part 70 on the first release film 40 is not the same as the projection of the second tearing part 70 on the first release film 40.
  • a tearing part 60 overlaps, that is, the projection of the first tearing part 60 on the second release film 50 is spaced from the second tearing part 50.
  • the second tearing part 70 is connected to the second side 51 close to the through hole 22a of the protective film 22, so as to prevent the user from grasping the first tearing part 60 while grasping the second tearing part 70 by mistake. To improve the user experience.
  • the second tearing part may also be located at the corner of the second release film, and the projection of the second tearing part on the first release film It may be partially overlapped with the first tearing part, which is not specifically limited in this application.
  • the second tearing part 70 and the second release film 50 are integrally formed to avoid that when the second release film 50 is torn from the protective film 22, the protective film 22 will not deform and follow the second release film.
  • the release film 50 is torn away, so that the second release film 50 can be removed from the protective film 22 smoothly, avoiding the problem of reverse release of the protective film 22 and improving the user's sense of use.
  • the second tearing portion 70 is formed by the protective film assembly 200 in a half-cutting process. It can be understood that, in other embodiments, the second tearing part may not be integrally formed with the second release film, and the second tearing part may also be formed under other processes. This is not specifically limited.
  • the second tearing portion 70 includes a third surface and a fourth surface (not shown) that are disposed oppositely, and the third surface and the fourth surface are rough surfaces to improve the second tearing portion.
  • the surface roughness of the part 60 increases the friction when the user holds the second tearing part 60, and the problem of instability due to the smooth surface of the second tearing part 60 will not occur, and it is more convenient for the user to The operation of the second tearing part 60 improves the user experience.
  • the rough surface may be formed by coating a rough material on the third surface and the fourth surface, or may be formed by pasting a concavo-convex structure layer on the third surface and the fourth surface, or by The third surface and the fourth surface are provided with convex structures at intervals, as long as the user can hold the second tearing part 60 without slipping off. It is understandable that in other embodiments, only the third surface of the second tearing portion may be a rough surface, or only the fourth surface of the second tearing portion may be a rough surface. .
  • the first release film 40 can be easily removed from the adhesive layer 221 of the protective film 22 through the first tearing part 60 Tear off, thereby quickly tearing the first release film 40 from the protective film 22. Then align the surface of the adhesive layer 221 away from the second release film 50 with the display surface 210 of the display screen 21 of the terminal 100 and attach it to the display screen 21. The middle area 211 of the surface 210 is accurately aligned and attached, and then the second area and the third area are attached to the first edge area 212 and the second edge area 213 of the display surface 210 respectively. Finally, the second release film 50 is torn away from the self-healing layer 226 of the protective film 22 to complete the filming of the display screen 210.
  • FIG. 9 is a schematic bottom view of the second protective film assembly 200 according to an embodiment of the present application.
  • the difference from the protective film assembly 200 shown in the foregoing embodiment is that the first tearing portion 60 is connected to the top edge 41, and is away from the first release film 40.
  • the direction of the extension is formed.
  • the first tearing portion may also be connected to the first side edge or other edges of the first release film, that is, the first tearing portion
  • the hand can be connected to any side of the first release film, which is not specifically limited in this application.
  • FIG. 10 is a schematic bottom view of a third protective film assembly 200 provided by an embodiment of the present application.
  • the first release film 40 further includes a third side 45 and a corner 46.
  • the third side 45 is connected to an end of the top side 41 away from the first side 42 and is disposed opposite to the first side 42.
  • the corner 46 is located between the third side 45 and the top side 41 in the first release film 40 The part of the connection.
  • the two first tearing parts 60 are connected to the corner parts 43 and 46 respectively.
  • the two first tearing parts 60 can be held at the same time, and then the top side 41, the first side 42 and the third side 43 can be moved along the three directions at the same time.
  • the first release film 40 is torn away from the first protective film 22 to improve the efficiency of tearing off the first release film 40.
  • FIG. 11 is a schematic bottom view of a fourth protective film assembly 200 provided by an embodiment of the present application.
  • the difference between the protective film assembly 200 shown in this embodiment and the protective film assembly 200 shown in the third embodiment is that the two first tearing parts 60 are both connected to the top edge 41.
  • the two first tearing parts 60 can be held at the same time, so that the first release film 40 can be removed from the first protective film 22 more quickly.
  • the two first tearing portions may also be connected to the first side or the third side at the same time, which is not specifically limited in this application.
  • FIG. 12 is a schematic bottom view of a fifth protective film assembly 200 according to an embodiment of the present application.
  • the protective film assembly 200 shown in this embodiment differs from the protective film assembly 200 shown in the fourth embodiment.
  • the protective film assembly 200 further includes a connecting portion 80, which is connected to the first release film 40 It is arranged at intervals and connected between the two first tearing parts 60.
  • a connecting portion 80 which is connected to the first release film 40 It is arranged at intervals and connected between the two first tearing parts 60.
  • the first tearing part 60 so that the first release film 40 is separated from the protective film 22 by the two first tearing parts 60 at the same time, and the first release film 40 is quickly and easily torn off from the protective film 22, There is no need to hold the two first tearing parts 60 at the same time, and the two first tearing parts 60 can be controlled at the same time by pulling the connecting part 80, which improves the user experience.
  • the connecting portion 80 and the two first tearing portions 60 are integrally formed to increase the strength of the connection between the connecting portion 80 and the two first tearing portions 60. It can be understood that, in other embodiments, the connecting portion and the two first tearing parts are connected by various connection methods such as bonding. The connecting portion 80 can also be connected to any two adjacent first tearing portions 60.
  • FIG. 13 is a schematic bottom view of the sixth protective film assembly 200 according to an embodiment of the present application.
  • the difference from the protective film assembly 200 shown in the above five embodiments is that there are three first tearing parts 60, and the first release film 40 includes three release parts.
  • Each of the releasing parts is connected with a first tearing part 60.
  • the three release parts are the first release part 40a, the second release part 40b, and the third release part 40c.
  • the second release part 40b and the third release part 40c are respectively connected to the first release part.
  • the first release portion 40a covers the first area
  • the second release portion 40b and the third release portion 40c cover the second area and the third area, respectively.
  • the first release film may include two or more release parts, and at least one first tear part is connected to each release part.
  • the first release part 40a can be peeled from the protective film 22 by the first tearing part 60 connected to the first release part 40a to expose the adhesive layer
  • the first area of 221 is aligned with the first area of the adhesive layer 221 and the middle area 211 of the display surface 210 and then attached to the middle area 211, and then connected to the second release portion 40b and the first
  • the first tearing part 60 connected with the three release parts 40c tears the second release part 40b and the third release part 40c away from the protective film 22, thereby exposing the first area and the second area of the adhesive layer 221, and then
  • the first area and the second area are respectively attached to the first edge area 212 and the second edge area 213 of the corresponding display surface 210, so that the protective film 22 is completely attached to the display screen 21.
  • the first release film 40 in this embodiment includes three independent release parts, and the protective film 22 can be attached to the display screen 21 step by step.
  • the protective film 22 When the protective film 22 is attached, the protective film
  • the first area of the adhesive layer 221 of 22 is exposed and aligned with the middle area 211 of the display surface 210, and then the second area and the third area of the adhesive layer 221 are exposed and correspond to the first area respectively.
  • the edge area 212 and the second edge area 213 are attached.
  • the adhesive The second area and the third area of the adhesive layer 224 are already aligned with the first edge area 212 and the second edge area 213 of the display surface 210, and there is no need to adjust the second area and the third area of the adhesive layer 221. Align with the first edge area 212 and the second edge area 213 of the display surface 210 respectively.
  • Such a step-by-step bonding method is more convenient for accurately bonding the protective film 22 to the display screen 21, and the bonding method is simpler and less expensive. This avoids the problem that the protective film 22 and the display screen 21 are not easily aligned due to the large edge curvature of the display screen 21, which affects the bonding effect.
  • the second release portion 40b and the third release portion 40c are both connected to the first release portion 40a by a tear line 40d, so as to independently tear off each release portion of the first release film 40 .
  • the first release part, the second release part and the third release part may not be connected by a tear line, and the first release part covers the The second release part and the third release part face the edge of the first release part to ensure that the first release part, the second release part and the third release part There are no gaps between them, as long as the protective film can be completely covered.

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Abstract

本申请提供一种保护膜、保护膜组件、显示屏组件及终端，所述保护膜包括粘接层、收缩层和弹性层，所述粘接层用以粘接于显示屏上，所述收缩层位于所述粘接层的一侧，所述收缩层的材料包括热塑性聚氨酯，所述弹性层位于所述收缩层背离所述粘接层的一侧，所述弹性层的材料包括聚氨酯。本申请所述保护膜能完全贴合于显示屏上，使所述保护膜牢固地贴附于显示屏上，全面有效地保护所述显示屏，防止所述显示屏跌落后发生碎裂。

Description

保护膜、保护膜组件、显示屏组件及终端
本申请要求于2019年09月18日提交中国专利局、申请号为201910879774.9、申请名称为“保护膜、保护膜组件、显示屏组件及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及电子设备技术领域，特别涉及一种保护膜、保护膜组件、显示屏组件及终端。
背景技术
现有技术中，电子设备的显示屏上往往贴附有保护膜，以防止显示屏在使用过程中发生破碎、刮花等不可恢复的破坏损伤。然而，保护膜一般由有机材料或者玻璃制作而成，保护膜无法与显示屏完全贴合，保护膜无法牢固地粘接在显示屏上，也就无法对显示屏的进行全面有效保护。
发明内容
本申请提供一种保护膜，用以完全贴合于显示屏上，使所述保护膜牢固地贴附于显示屏上，全面有效地保护所述显示屏。
本申请还提供一种保护膜组件、显示屏组件及终端。
本申请所述保护膜包括粘接层、收缩层和弹性层，所述粘接层用以粘接于显示屏上，所述收缩层位于所述粘接层背离所述显示屏的一侧，所述收缩层的材料包括热塑性聚氨酯，所述弹性层位于所述收缩层背离所述粘接层的一侧，所述弹性层的材料包括聚氨酯。
本申请所述保护膜包括所述收缩层和所述弹性层，所述弹性层的材料包括聚氨酯，聚氨酯的弹性模量较小，柔量较大，使得所述保护膜足够软，而且所述收缩层的材料包括热塑性聚氨酯，热塑性聚氨酯具有良好的耐热和耐湿性能，包括所述收缩层的所述保护膜在高温或高湿的环境下，所述收缩层不会轻易变形由四周向中间收缩而带动保护膜翘曲，使得所述保护膜能始终保持完全贴合于所述显示屏上，对显示屏起到全方位保护作用，防止终端跌落而导致显示屏碎裂的情况，减少用户损失，提高用户体验。此外，由于所述保护膜足够软，当对曲面的显示屏进行保护膜贴合时，可直接将所述保护膜贴合于曲面的显示屏上时，而不需要先将所述保护膜加工成与所述显示屏相匹配的曲面再进行贴合，节省了曲面显示屏的保护膜贴合工艺流程。
此外，聚氨酯等弹性材料还具有可恢复特性，当所述保护膜贴合于显示屏上，且所述弹性层上形成了较深的划痕时，所述弹性层可快速恢复到近似没有划痕的状态，降低了划痕对显示屏的显示清晰度的影响，提高用户浏览显示屏的显示界面的浏览体验。
一种实施方式中，所述保护膜的弹性模量为1Gpa～5Gpa。
需要了解的是，弹性模量为衡量材料产生弹性变形难易程度的性能，本申请中的所述保护膜的弹性模量为1Gpa～5Gpa，相比于现有保护膜的弹性模量为5Gpa～10Gpa，本申请所 述保护膜的弹性模量更小，即所述保护膜的柔量更大，也即本申请所述保护膜的更软，能完全贴合于显示屏上，使所述保护膜能牢固地贴合于显示屏上，全面有效地保护所述显示屏。
一种实施方式中，所述保护膜的弹性模量为3Gpa，以使所述保护膜不仅能与所述显示屏完全贴合，所述保护膜还具有一定的强度，不会被轻易损坏而更好地保护所述显示屏。
一种实施方式中，所述粘接层的材料包括硅胶。硅胶材料具有高透光性，所述保护膜贴合于所述显示屏上时，高透光性的所述粘接层可以减少所述保护膜对所述显示屏的显示画面的影响，提升用户的使用感受。
一种实施方式中，所述保护膜还包括自修复层，所述自修复层设于所述弹性层远离所述粘接层的表面。所述自修复层具有自修复功能，当所述保护膜贴合于显示屏上，且所述自修复层上形成有浅划伤的印记时，所述自修复层能在短时间内恢复到近似没有印记的状态，从而降低了印记对显示屏的显示清晰度的影响，提高用户浏览显示屏的显示界面的浏览体验。
一种实施方式中，所述自修复层的材料包括亚克力树脂。
一种实施方式中，所述保护膜还包括保护层，所述保护层连接于所述粘接层和所述收缩层之间，由于保护层与所述粘接层之间具有很好的粘接性能，所述保护膜贴合于显示屏时不容易出现小气泡，且当将所述保护膜从显示屏上撕下后，显示屏上不会残留所述粘接层的胶。
一种实施方式中，保护层的材料包括聚对苯二甲酸乙二醇酯，所述保护层具有较高的透光性，所述保护膜贴在显示屏上的时候，不会影响显示屏的清晰度，提高用户体验。
一种实施方式中，所述保护膜还包括粘胶层，所述粘胶层连接于所述收缩层和所述弹性层之间，以增加所述收缩层和所述弹性层之间的结合力。
一种实施方式中，所述粘胶层的材料包括光学透明胶，保证了所述粘胶层无色透明、光透过率在90％以上、胶结强度良好，能很好的将所述收缩层和所述弹性层粘接在一起，保证了所述保护膜的整体粘连强度的同时保证了所述保护膜的透光性能，提高用户的使用体验。
一种实施方式中，所述保护膜的厚度为50μm～200μm，本申请所述保护膜足够薄，所述保护膜贴合于所述显示屏上时，不仅对所述显示屏的固有厚度和触感影响较小，也不会影响屏下指纹的性能和屏幕发声的性能。
一种实施方式中，所述保护膜的厚度为85μm～100μm，所述保护膜的厚度过厚会耗费过多的原材料，增加材料成本，所述保护膜的厚度太薄，在贴合于显示屏上后所述保护膜容易卷曲且不利于保护显示屏。
一种实施方式中，所述显示屏包括功能孔，所述保护膜上设有贯穿所述保护膜的通孔，所述通孔用以露出所述功能孔，当所述保护膜贴合于所述显示屏上时，所述通孔避让所述功能孔，使所述功能孔露出而直接与外界环境接触，减小所述保护膜对所述功能孔的影响。
本申请所述保护膜组件包括第一离型膜、第二离型膜和上述任意一项所述的保护膜，所述保护膜连接于所述第一离型膜和所述第二离型膜之间，所述第一离型膜覆盖所述粘接层背离所述收缩层的表面，所述第二离型膜覆盖所述保护膜背离所述粘接层的表面。
本申请的所述保护膜组件还包括设于所述保护膜相对两个表面的第一离型膜和第二离型膜，所述第一离型膜和所述第二离型膜用于保护所述保护膜，以防止所述保护膜在运输等过程中受损伤，及防止所述保护膜的所述粘胶层暴露于空气中失去粘性。
一种实施方式中，所述保护膜组件还包括第一撕手部，所述第一撕手部与所述第一离型膜连接，且伸出所述保护膜的边缘。当需要将所述保护膜贴合于显示屏上时，可手握所述第一撕手部方便快捷地将所述第一离型膜从所述保护膜上撕离下来。
一种实施方式中，所述第一撕手部与所述第一离型膜一体成型。
本实施方式所述保护膜组件中，所述保护膜的弹性模量较小，即所述保护膜的柔量较大，若所述第一离型膜上连接有外接的第一撕手部，此时所述第一撕手部与所述第一离型膜的连接位置的厚度和硬度较大，在利用所述第一撕手部撕离所述第一离型膜时，所述保护膜极易发生变形而跟随所述第一离型膜被撕离带走，造成反离型。本申请所述第一撕手部与所述第一离型膜一体成型，所述第一撕手部与所述第一离型膜的连接处厚度较薄且硬度较小，当利用所述第一撕手部撕离所述第一离型膜时，所述保护膜不会发生变形而跟随所述第一离型膜被撕离，使得所述第一离型膜能顺利地从所述保护膜上撕除，避免了所述保护膜发生反离型的问题，提升了用户的使用感。
一种实施方式中，所述第一手撕部为所述保护膜组件通过半切工艺切割而成。
一种实施方式中，所述第一离型膜包括角部，所述角部与所述第一撕手部连接，所述第一撕手部沿背离所述角部的方向延伸。
本实施方式所述保护膜组件中，所述第一撕手部设于所述第一离型膜的角部上，也即所述第一撕手部与所述第一离型膜的角部的两条边均连接，当通过所述第一撕手部撕离所述第一离型膜时，只需要通过所述第一撕手部向所述角部施力即可同时沿所述角部的两个边所在的方向将所述第一离型膜从所述保护膜上快速撕离，提高了撕离所述第一离型膜的效率。
另一种实施方式中，所述第一撕手部的数量为两个，两个所述第一撕手部间隔设置，在需要将所述第一离型膜撕离所述保护膜时，可同时握住两个所述第一撕手部，从多个方向将所述第一离型膜从所述第一保护膜上撕离，进一步提高撕离所述第一离型膜的效率。
一种实施方式中，所述保护膜组件还包括连接部，所述连接部与所述第一离型膜间隔设置且连接于两个所述第一撕手部之间。在需要将所述第一离型膜撕离所述保护膜时，只需要一只手对所述连接部施力，力会从所述连接部的两端分别传递给两个所述第一撕手部，从而可同时通过两个所述第一撕手部将所述第一离型膜从所述保护膜上分离，实现所述第一离型膜快速的快速撕离，而不需要同时握住两个第一撕手部，只需手握所述连接部就能同时控制两个所述第一撕手部，提高了用户体验。
一种实施方式中，所述第一撕手部包括相对设置的第一表面和第二表面，所述第一表面和/或所述第二表面为粗糙面，以在手握住所述第一撕手部时，增加了手与所述第一撕手部的摩擦力，避免由于所述第一撕手部表面太光滑而导致的握不稳的问题，便于用户通过所述第一撕手部撕离所述第一离型膜，提高用户体验。
一种实施方式中，所述第一撕手部的数量为多个，所述第一离型膜包括多个离型部分，每一所述离型部分分别与一个所述第一撕手部连接。
本实施方式所述保护膜组件中，所述第一离型膜包括多个独立的离型部分，当需要将所述保护膜贴合于显示屏上时，可以通过多个所述第一撕手部先后撕下多个离型部分来将所述保护膜分步贴合于显示屏上，避免了由于显示屏的显示面积较大而导致所述保护膜与所述显示屏不容易对准，影响贴合效果的问题，提高了所述保护膜与所述显示屏的贴合精度。
一种实施方式中，所述粘接层背离所述收缩层的表面包括第一区域、第二区域和第三区域，所述第二区域和所述第三区域连接于所述第一区域的两侧，所述第一离型膜包括第一离型部分、第二离型部分和第三离型部分，所述第一离型部分覆盖所述第一区域，所述第二离型部分覆盖所述第二区域，所述第三离型部分覆盖所述第三区域，所述第一撕手部有三个，所述第一离型部分、所述第二离型部分和所述第三离型部分分别与一个所述第一撕手部连接。当要将所述保护膜贴合于曲面的显示屏上时，所述显示屏的显示面包括中间区域和位于所述中间区域两侧的第一边缘区域和第二边缘区域，所述第一边缘区域和所述第二边缘区域为弧形区域，可先通过与所述第一离型部分连接的第一撕手部将所述第一离型部分撕离所述保护膜，露出所述第一区域，将所述第一区域与所述显示屏对准后贴合于所述显示面的中间区域，再通过与所述第二离型部分和第三离型部分连接的第一撕手部将所述第二离型部分和第三离型部分撕离所述保护膜，从而露出所述第二区域和所述第三区域，再将所述第二区域和第三区域分别贴合于所述显示面的所述第一边缘区域和所述第二边缘区域，从而将所述保护膜完全贴合于显示屏上。也就是说，本实施方式通过将所述第一离型膜分为三个部分，将所述保护膜分步贴合于显示屏上，这样的分步贴合方式更便于将所述保护膜准确贴合于所述显示屏上，且贴合方式更简单省时，避免了由于显示屏的边缘曲度较大而导致所述保护膜与所述显示屏不容易对准，影响贴合效果的问题。
一种实施方式中，所述保护膜组件包括第二撕手部，所述第二撕手部与所述第二离型膜连接，且伸出所述保护膜的边缘。当需要将所述第二离型膜从所述保护膜上撕离时，可通过所述第二撕手部方便快捷地将所述第二离型膜从所述保护膜上撕离下来。
一种实施方式中，所述第二撕手部与所述第二离型膜一体成型，以避免从所述保护膜上撕离所述第二离型膜时，所述保护膜不会发生变形而跟随所述第二离型膜被撕离，使得所述第二离型膜能顺利地从所述保护膜上撕除，避免所述保护膜发生反离型的问题，提升用户的使用感。
一种实施方式中，所述第二撕手部为所述保护膜组件经半切工艺切割而成。
一种实施方式中，所述第一撕手部在所述第二离型膜上的投影与所述第二撕手部间隔。从而避免了用户在抓住第一撕手部的同时误抓所述第二撕手部，提高用户体验。
本申请所述显示屏组件包括显示屏和上述任意一项所述的保护膜，所述保护膜的所述粘接层粘接于所述显示屏上。
本申请所述显示屏组件中，所述保护膜完全贴合于所述显示屏上，保证了所述保护膜对所述显示屏起到全方位保护作用，防止所述显示屏组件坠落而导致所述显示屏碎裂的情况，减少用户损失，提高用户体验。
一种实施方式中，所述显示屏为2D显示屏、2.5D显示屏或3D显示屏。
本申请所述终端包括壳体和上述显示屏组件，所述显示屏组件安装于所述壳体上。
本申请中的所述终端的显示屏上贴合有所述保护膜，所述保护膜始终保持完全贴合于所述显示屏上而不会发生收缩而翘曲的情况，保证了所述保护膜对所述显示屏起到全方位保护作用，防止所述终端坠落而导致所述显示屏碎裂的情况，减少用户损失，提高用户体验。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是本申请实施例提供的一种终端的结构示意图；
图2是图1所示终端的分解结构示意图；
图3是图1所示终端的第Ⅰ局部放大结构示意图；
图4是图1所示终端中保护膜的剖面结构示意图；
图5是本申请实施例提供的一种保护膜组件的俯视结构示意图；
图6是图5所示保护膜组件的分解结构示意图；
图7是图5所示保护膜组件的仰视结构示意图；
图8是图5所示保护膜组件A-A方向的剖面结构示意图；
图9是本申请实施例提供的第二种保护膜组件的仰视结构示意图；
图10是本申请实施例提供的第三种保护膜组件的仰视结构示意图；
图11是本申请实施例提供的第四种保护膜组件的仰视结构示意图；
图12是本申请实施例提供的第五种保护膜组件的结构示意图；
图13是本申请实施例提供的第六种保护膜组件的仰视结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
本申请实施例提供一种终端，所述终端包括且不限于手机、平板电脑、多媒体播放器、电子书阅读器、笔记本电脑、车载设备或可穿戴设备等具有显示功能的电子设备。本申请以所述终端是手机为例进行具体说明。
请参阅图1和图2，图1是本申请实施例提供的一种终端100的结构示意图。图2是图1所示终端100的分解结构示意图。
终端100包括壳体10、显示屏组件20和控制器30，显示屏组件20安装于壳体10上，控制器30收容于显示屏组件20和壳体10之间的空间内，并与显示屏组件20电连接，控制器30用于控制显示屏组件20的显示。
本实施例中，壳体10包括边框11和后盖12，边框11环绕于后盖12的周缘。显示屏组件20安装于边框11远离后盖12的一侧。也即，显示屏组件20和后盖12分别安装于边框11的两侧。用户使用终端100时，显示屏组件20通常朝向用户放置，后盖12背离用户放置。
显示屏组件20包括显示屏21和保护膜22，保护膜22贴于显示屏21上。显示屏21 集成有显示功能，触摸感应功能及指纹图像采集功能。本实施例中，显示屏21为3D显示屏，即显示屏21为边缘具有曲度的曲面屏。显示屏21包括显示面210和功能孔220。用户使用终端100时，显示屏21的显示面210通常朝向用户放置。显示面210包括中间区域211和连接于中间区域211两侧的第一边缘区域212和第二边缘区域213，中间区域211为显示面210的主显示区，即中间显示部分。第一边缘区域212和第二边缘区域213为显示面210两侧的边缘区，第一边缘区域212和第二边缘区域213为具有较大曲度的弧形区域。本实施例中，第一边缘区域212和第二边缘区域213大小和形状相同，并对称设于中间区域211的两侧。其中，功能孔220为设于显示面210的中间区域211内的听筒孔。当然，功能孔220也可以为摄像孔或显示灯孔。可以理解的是，在其他实施例中，第一边缘区域212和第二边缘区域213大小及形状不同，所述显示屏还可以是2D显示屏或2.5D显示屏，本申请对此不作具体限定。
请一并参阅图3，图3是图1所示终端100中Ⅰ区域的局部放大结构示意图。
保护膜22贴合在显示屏21的显示面210。本实施例中，保护膜22的大小和形状与显示面210的大小和形状相适应，保护膜22完全贴合于显示面210上，且保护膜22的边与显示屏21的边对齐。具体的，保护膜22的边缘与显示屏21的边缘的距离L为1mm，从而保证保护膜22贴合于显示面210上的贴合效果好，保护膜22不容易发生卷边。保护膜22始终保持完全贴合于显示屏21上而不会发生收缩而翘曲的情况，保证了保护膜22对显示屏21起到全方位保护作用，防止终端100坠落而导致的显示屏21碎裂的情况，减少用户损失，提高用户体验。
保护膜22上设有贯穿保护膜22的通孔22a，通孔22a贯穿保护膜22的相对两个表面，避让显示屏21上的功能孔220，使功能孔220露出而直接与外接环境接触，功能孔220发出的声音不需要通过保护膜22而直接传递至外接环境中，减小了保护膜22对功能孔220的影响，保证了功能孔220发出的声音的正常传递。本实施例中，通孔22a的形状和大小与显示屏21上的功能孔220的形状和大小相匹配。需要说明的是，在其他实施例中，所述通孔的尺寸可以大于所述功能孔的大小，只要能使所述功能孔露出即可。
可以理解的是，在其他实施例中，当所述显示屏上还开设有摄像孔时，所述保护膜上还可以开设有避让所述摄像孔的通孔，以使所述摄像孔露出于所述保护膜，使得光线不需要通过保护膜进出所述摄像孔，避免了光线穿过所述保护膜所造成的损耗，保证了所述终端的摄像头的摄像效果。
请参阅图4，图4是图1所示终端100的保护膜22的剖面结构示意图。
保护膜22包括粘接层221、保护层222、收缩层223、粘胶层224、弹性层225和自修复层226，收缩层223位于粘接层221的一侧，弹性层225位于收缩层223背离粘接层221的一侧。保护层222连接于粘接层221和收缩层223之间，粘胶层224连接于收缩层223和弹性层225之间，自修复层226设于弹性层225远离粘接层221的表面。换言之，粘接层221、保护层222、收缩层223、粘胶层224、弹性层225和自修复层226依次层叠设置。粘接层221背离保护层222的面贴合于显示屏21的显示面210上。本申请保护膜22包括收缩层223和弹性层225，弹性层225具有较好的弹性，使得保护膜22足够软，而且收缩层223还能防止保护膜22在不同环境条件下发生收缩而翘曲，使得保护膜22能完全贴合 于曲度大的显示屏21上，对显示屏21起到全方位保护作用，防止终端100跌落而导致显示屏21碎裂的情况，减少用户损失，提高用户体验。此外，由于保护膜22足够软，当对显示屏21进行保护膜贴合时，可直接将保护膜22贴合于显示屏21上，而不需要先将保护膜22加工成与显示屏21相匹配的曲面再进行贴合，节省了显示屏21的保护膜贴合工艺流程。
粘接层221将保护膜22贴合于显示面210上。本实施例中，粘接层221的厚度为10μm～50μm。粘接层221的材料包括硅胶，硅胶制成的粘接层221不仅可以与显示屏21良好贴合，不影响显示屏21的指纹解锁等屏幕相关的功能，而且硅胶具备高透光性，可以减小保护膜22对显示屏21的显示画面的影响，提升用户的使用感受。具体的，粘接层221与显示面210贴合的表面即粘接层221背离收缩层223的表面包括第一区域、第二区域和第三区域。所述第一区域与显示面210的中间区域211贴合。所述第二区域和所述第三区域连接于所述第一区域的两侧，所述第二区域和所述第三区域形状和尺寸相同，所述第二区域和所述第三区域分别与显示面210的第一边缘区域212和第二边缘区域213贴合。可以理解的是，在其他实施例中，所述粘接层还可以是丙烯酸胶材质等其他透明粘接材料。
保护层222设于粘接层221背向显示屏21的表面。本实施例中，保护层222的厚度为12μm～15μm。保护层222的材料包括聚对苯二甲酸乙二醇酯(Polyethylene terephthalate，PET)。保护层222具有较高的透光性，保证了显示屏21的清晰度，且由于保护层222与粘接层221之间具有很好的粘接性能，保护膜22贴合于显示屏21时不容易出现小气泡，且当将保护膜22从显示屏21上撕下后，显示屏21上不会残留粘接层221的胶。
收缩层223设于保护层222背向粘接层221的表面。本实施例中，收缩层223的厚度为9μm～15μm。收缩层223的材料包括热塑性聚氨酯(Thermoplastic Polyurethanes，TPU)。热塑性聚氨酯具有良好的耐热和耐湿性能，终端100在高温或高湿环境下使用时，收缩层223不会轻易发生变形而由四周向中间收缩带动保护膜22翘曲的情况，即保护膜22可始终保持完全贴合于曲度大的显示屏21上，对显示屏21起到全方位保护作用，防止终端100跌落而导致显示屏21碎裂的情况，减少用户损失，提高用户体验。
粘胶层224连接于收缩层223背离保护层222的表面。本实施例中，粘胶层224的厚度为3μm～10μm。粘胶层224的材料包括光学透明胶(Optically Clear Adhesive，OCA)，由光学透明胶制成的粘胶层224无色透明、光透过率在90％以上、胶结强度良好，能很好的将收缩层223和弹性层225粘接在一起，保证了保护膜22的整体粘连强度的同时保证了保护膜22的透光性能，提高用户的使用体验。
弹性层225连接于粘胶层224背离收缩层223的表面。本实施例中，弹性层225的厚度为10μm～100μm。弹性层225的材料包括聚氨酯(Polyurethane，PU)，聚氨酯弹性模量较小柔量较大，从而保证包括弹性层225的保护膜22的弹性模量保持在合适的范围内，即，所述保护膜22足够软，以使保护膜22能完全贴合于曲度大的显示屏21上。此外，聚氨酯还具有可恢复特性，当保护膜22上形成了较深的划痕时，弹性层225可快速恢复到近似于没有划痕的状态。从而保证保护膜22的美观，也保证了显示屏21的显示清晰度，提高用户浏览显示屏21的显示界面的浏览体验。聚氨酯具有很好的耐热性和良好的凝结力， 有利于提高整个保护膜22的耐热性、湿润性和稳定性。
自修复层226设于弹性层225背离粘胶层224的表面。本实施例中，自修复层的厚度为5μm～10μm。自修复层226的材料包括亚克力树脂。当自修复层226上形成有浅划伤的印记时，自修复层226能在短时间内恢复到近似于没有印记的状态，从而保证保护膜22的美观，也保证了显示屏21的显示清晰度，提高用户浏览显示屏21的显示界面的浏览体验。
保护膜22的厚度过厚会耗费过多的原材料，增加材料成本。保护膜22的厚度太薄，在贴合于显示屏21上后保护膜22容易卷曲且不利于保护显示屏21。本实施例中，保护膜22的厚度为85μm～100μm，从而保护膜22对终端100的固有厚度和显示屏21的触感不会产生影响，同时贴膜后也不会影响屏下指纹的性能和屏幕发声的性能。可以理解的是，在其他实施例中，所述保护膜的厚度可以为50μm～200μm之间的任意值，本申请对此不作具体限定。
保护膜22的弹性模量为3Gpa。弹性模量为衡量材料产生弹性变形难易程度的性能，本实施例中，保护膜22的弹性模量为3Gpa，保护膜22不仅容易产生弹性形变，以使保护膜22能完全贴合于曲度大的显示屏21上，还具有一定的强度，不会被轻易损坏而更好地保护显示屏21。可以理解的是，在其他实施例中，所述保护膜的弹性模量可以为1Gpa～5Gpa之间的任意值，本申请对此不作具体限定。
请参阅图5和图6，图5是本申请实施例提供的一种保护膜组件200的俯视结构示意图，图6是图5所示保护膜组件200的分解结构示意图，其中，图5和图6所示保护膜组件200中的保护膜20为图1所示终端100中保护膜10未贴合于显示屏210上的状态。
保护膜组件200包括保护膜22、第一离型膜40、第二离型膜50、第一撕手部60和第二撕手部70。保护膜22连接于第一离型膜40和第二离型膜50之间，第一离型膜40覆盖所述粘接层221背离所述收缩层223的表面，所述第二离型膜50覆盖所述保护膜22背离所述粘接层221的表面，即所述第二离型膜50覆盖所述自修复层226远离粘接层221的表面，也即第一离型膜40和第二离型膜50分别覆盖于保护膜22的相对两个表面，以保护保护膜22，以防止保护膜22在运输等过程中受损伤，及防止保护膜22的粘胶层224暴露于空气中失去粘性。第一撕手部60与第一离型膜40连接，且伸出保护膜22的边缘。第二撕手部70与第二离型膜50连接，且伸出保护膜22的边缘。
请一并参阅图7，图7是图5所示保护膜组件200的仰视结构示意图。
本实施例中，保护膜22呈圆角矩形。第一离型膜40与保护膜22的形状和大小均相同。第一离型膜40包括顶边41、第一侧边42和角部43。顶边41为第一离型膜40靠近通孔22a的边，第一侧边42与顶边41连接，第一离型膜40中位于顶边41和侧边43连接处的部分为角部43。
第一撕手部60连接于第一离型膜40的边缘。具体的，第一撕手部60与角部43连接，且沿背离角部43的方向延伸。即第一撕手部60与顶边41和第一侧边42均连接，当通过第一撕手部60撕离第一离型膜40时，只需要通过第一撕手部60向角部43施力即可同时沿顶边41和第一侧边42所在的两个方向将第一离型膜40从保护膜22上快速撕离，提高了撕离第一离型膜40的效率。
一种实施方式中，第一撕手部60与第一离型膜40与一体成型。具体的，第一撕手部 60为保护膜组件200在半切工艺下形成。可以理解的是，在其他实施例中，所述第一撕手部也可以不与所述第一离型膜一体成型，所述第一撕手部也可以在其他工艺下形成，本申请对此不作具体限定。
本申请所示保护膜组件200中，保护膜22的弹性模量小，柔量较大即保护膜22较软。若第一撕手部60以外接的方式连接于第一离型膜40上时，第一撕手部60与第一离型膜40的连接位置的厚度和硬度较大，若通过第一撕手部60将第一离型膜40撕离保护膜22，弹性模量低的保护膜22容易发生变形而被弹性模量高的第一离型膜40撕离带走，即，在撕离第一离型膜40时第一离型膜40并没有与保护膜22分离，而是第一离型膜40和保护膜22共同从第二离型膜50上撕离。而本申请实施例所示保护膜组件200中，第一撕手部60与第一离型膜40一体成型，第一撕手部60和第一离型膜40的连接处厚度和硬度较小，当通过第一撕手部60撕离第一离型膜40时，保护膜22不会发生变形而跟随第一离型膜40被一并撕除，保证了第一离型膜40能顺利与比较软的保护膜22分离，避免了保护膜22发生反离型的问题，使保护膜22可以顺利贴合于显示屏21上，提供用户的使用体验。
请一并参阅图8，图8是图5所示保护膜组件200沿A-A方向的剖面结构示意图。
第一撕手部60包括相对设置的第一表面61和第二表面62，第一表面61和第二表面62为粗糙面，以提高第一撕手部60的表面粗糙度，增加用户在握住第一撕手部60时的摩擦力，不会出现由于第一撕手部60表面太光滑而导致的握不稳的问题，更加便于用户对第一撕手部60进行操作，提高了用户体验。具体的，粗糙面可以通过在第一表面61和第二表面62上涂覆粗糙材料形成，也可以通过在第一表面61和第二表面62上粘贴凹凸结构层形成，或者通过在第一表面61和第二表面62上间隔设置凸状结构形成，只要能使得用户在握住第一撕手部60时不会滑落即可。可以理解的是，在其他实施例中，所述第一撕手部可以仅仅只有所述第一表面为粗糙面，或者，所述第一撕手部可以仅仅只有所述第二表面为粗糙面。
复参图5，第二离型膜50与第一离型膜40分别覆盖保护膜22的相对两个表面。本实施例中，第二离型膜50与第一离型膜40的形状和大小均相同。具体的，第二离型膜50包括背离第一侧边42的第二侧边51。
第二撕手部70连接于第二离型膜50的边缘。本实施例中，第二撕手部70在第一离型膜40上的投影与第一撕手部60间隔，即第二撕手部70在第一离型膜40上的投影不与第一撕手部60重叠，也即第一撕手部60在第二离型膜50上的投影与第二撕手部50间隔。具体的，第二撕手部70连接于第二侧边51靠近保护膜22的通孔22a的位置，以避免用户在抓住第一撕手部60的同时误将第二撕手部70抓住，提高用户体验。可以理解的是，在其他实施例中，所述第二撕手部也可以位于所述第二离型膜的角部，所述第二撕手部在所述第一离型膜上的投影可以与所述第一撕手部部分重合，本申请对此不作具体限定。
一种实施方式中，第二撕手部70与第二离型膜50一体成型，以避免从保护膜22上撕离第二离型膜50时，保护膜22不会发生变形而跟随第二离型膜50被撕离，使得第二离型膜50能顺利地从保护膜22上撕除，避免保护膜22发生反离型的问题，提升用户的使用感。具体的，第二撕手部70为保护膜组件200在半切工艺下形成。可以理解的是，在其他实施例中，所述第二撕手部也可以不与所述第二离型膜一体成型，所述第二撕手部也可以在其 他工艺下形成，本申请对此不作具体限定。
一种实施方式中，第二撕手部70包括相对设置的第三表面和第四表面(图未示)，所述第三表面和所述第四表面为粗糙面，以提高第二撕手部60的表面粗糙度，增加用户在握住第二撕手部60时的摩擦力，不会出现由于第二撕手部60表面太光滑而导致的握不稳的问题，更加便于用户对第二撕手部60进行操作，提高了用户体验。具体的，粗糙面可以通过在所述第三表面和所述第四表面上涂覆粗糙材料形成，也可以通过在所述第三表面和所述第四表面上粘贴凹凸结构层形成，或者通过在所述第三表面和所述第四表面上间隔设置凸状结构形成，只要能使得用户在握住第二撕手部60时不会滑落即可。可以理解的是，在其他实施例中，所述第二撕手部可以仅仅只有所述第三表面为粗糙面，或者，所述第二撕手部可以仅仅只有所述第四表面为粗糙面。
当需要将保护膜组件200中的保护膜22贴合于终端100的显示屏21上时，可通过第一撕手部60轻易将第一离型膜40从保护膜22的粘接层221上撕离下来，从而快速将第一离型膜40从保护膜22上撕离。然后将粘接层221背离第二离型膜50的表面与终端100的显示屏21的显示面210对准并贴合于显示屏21上，贴合时，先将所述第一区域与显示面210的中间区域211对位准确并贴合，然后将所述第二区域和所述第三区域分别与显示面210的第一边缘区域212和第二边缘区域213贴合。最后将第二离型膜50撕离保护膜22的自修复层226即可完成对显示屏210的贴膜。
请参阅图9，图9是本申请实施例提供的第二种保护膜组件200的仰视结构示意图。
本实施例所示保护膜组件200中，与上述一种实施例所示保护膜组件200的不同之处在于，第一撕手部60与顶边41连接，且沿背离第一离型膜40的方向延伸形成。当需要撕离第一离型膜4时，手握第一撕手部60向所述第一离型膜40与顶边41相对设置的底边44用力，以使第一离型膜40沿顶边41向底边44的方向从保护膜22上逐渐撕离。使可以理解的是，在其他实施例中，所述第一撕手部也可以与所述第一侧边或所述第一离型膜的其他边连接，也就是说，所述第一撕手部可与所述第一离型膜的任意边连接，本申请对此不作具体限定。
请参阅图10，图10是本申请实施例提供的第三种保护膜组件200的仰视结构示意图。
本实施例所示保护膜组件200中，与上述二种实施例所示保护膜组件200的不同之处在于，第一撕手部60的数量为两个，两个第一撕手部60间隔设置。具体的，第一离型膜40还包括第三侧边45和角部46。第三侧边45与顶边41背离第一侧边42的一端连接，且与第一侧边42相对设置，角部46为第一离型膜40中位于第三侧边45与顶边41连接处的部分。两个第一撕手部60分别于角部43和46连接。当需要撕离第一离型膜40时，可同时握住两个第一撕手部60，即可同时沿顶边41、第一侧边42和第三侧边43所在的三个方向将第一离型膜40从第一保护膜22上撕离，提高撕离第一离型膜40的效率。
请参阅图11，图11是本申请实施例提供的第四种保护膜组件200的仰视结构示意图。
本实施例所示保护膜组件200中，与第三种实施例所示保护膜组件200的不同之处在于，两个第一撕手部60均与顶边41连接。当需要撕离第一离型膜40时，可同时握住两个第一撕手部60，从而能更快速的将第一离型膜40从第一保护膜22上撕离。可以理解的是，在其他实施例中，两个所述第一撕手部也可同时与所述第一侧边或者所述第三侧边连接， 本申请对此不作具体限定。
请参阅图12，图12是本申请实施例提供的第五种保护膜组件200的仰视结构示意图。
本实施例所示保护膜组件200中，与上述第四种实施例所示保护膜组件200的不同之处在于，保护膜组件200还包括连接部80，连接部80与第一离型膜40间隔设置且连接于两个第一撕手部60之间。当需要将第一离型膜40从保护膜22上撕离时，只需要一只手抓住连接部80对连接部80施力，力就会从连接部80的两端分别传递给两个第一撕手部60，从而同时通过两个第一撕手部60将第一离型膜40从保护膜22上分离，快速将第一离型膜40快速轻易从保护膜22上撕离，且不需要同时握住两个第一撕手部60，只需拉动连接部80就能同时控制两个第一撕手部60，提高了用户体验。
一种实施方式中，连接部80与两个第一撕手部60一体成型，以增加连接部80与两个第一撕手部60的连接强度。可以理解的是，在其他实施例中，所述连接部与两个所述第一撕手部通过粘接等多种连接方式连接。连接部80还可连接于任意两个相邻的第一撕手部60。
请参阅图13，图13是本申请实施例提供的第六种保护膜组件200的仰视结构示意图。
本实施例所示保护膜组件200中，与上述五种实施例所示保护膜组件200的不同之处在于，第一撕手部60有三个，第一离型膜40包括三个离型部分，每一所述离型部分与一个第一撕手部60连接。具体的，三个离型部分分别为第一离型部分40a、第二离型部分40b和第三离型部分40c，第二离型部分40b和第三离型部分40c分别连接于第一离型部分40a的相对两侧。第一离型部分40a覆盖所述第一区域，第二离型部分40b和第三离型部分40c分别覆盖所述第二区域和所述第三区域。需要说明的是，在其他实施例中，所述第一离型膜可以包括两个或四个以上的离型部分，每一所述离型部分至少连接有一个所述第一撕手部。
当将保护膜22贴合于显示屏21上时，可先通过从与第一离型部分40a连接的第一撕手部60将第一离型部分40a撕离保护膜22，露出粘接层221的所述第一区域，将粘接层221的所述第一区域与显示面210的中间区域211对准后贴合于中间区域211上，再通过从与第二离型部分40b和第三离型部分40c连接的第一撕手部60将第二离型部分40b和第三离型部分40c撕离保护膜22，从而露出粘接层221的第一区域和第二区域，再将第一区域和第二区域分别贴合于与其对应的显示面210的第一边缘区域212和第二边缘区域213上，从而将保护膜22完全贴合于显示屏21上。也就是说，本实施例中第一离型膜40包括三个独立的离型部分，可将保护膜22分步贴合于显示屏21上，在贴合保护膜22的时候首先将保护膜22的粘接层221所述第一区域露出并与显示面210的中间区域211对准贴合，然后再将粘接层221的第二区域和第三区域露出并分别与与其对应的第一边缘区域212和第二边缘区域213进行贴合，在粘接层221的第二区域和第三区域分别贴合于显示面210的第一边缘区域212和第二边缘区域213的过程中，粘胶层224的第二区域和第三区域分别与显示面210的第一边缘区域212和第二边缘区域213已经是对准状态了，不需要对粘接层221的第二区域和第三区域分别与显示面210的第一边缘区域212和第二边缘区域213进行对准，这样的分步贴合方式更便于将保护膜22准确贴合于显示屏21上，且贴合方式更简单省时，避免了由于显示屏21的边缘曲度较大而导致保护膜22与显示屏21不容易对 准，影响贴合效果的问题。
一种实施方式中，第二离型部分40b和第三离型部分40c均通过撕开线40d与第一离型部分40a连接，以便于独立撕离第一离型膜40的各个离型部分。当然，在其他实施方式中，所述第一离型部分、所述第二离型部分和所述第三离型部分还可以不通过撕开线连接，所述第一离型部分覆盖所述第二离型部分和所述第三离型部分朝向所述第一离型部分的边缘，以保证所述第一离型部分、所述第二离型部分和所述第三离型部分之间没有缝隙，能完全覆盖所述保护膜即可。
需要说明的是，本申请中，所述第二撕手部与所述第二离型膜之间的位置关系有多种，与上文所述第一撕手部与所述第一离型膜之间的位置关系变换大致相同，在此不作过多描述。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (19)

  1. 一种保护膜，其特征在于，包括粘接层、收缩层和弹性层，所述粘接层用以粘接于显示屏上，所述收缩层位于所述粘接层背离所述显示屏的一侧，所述收缩层的材料包括热塑性聚氨酯，所述弹性层位于所述收缩层背离所述粘接层的一侧，所述弹性层的材料包括聚氨酯。
  2. 根据权利要求1所述的保护膜，其特征在于，所述保护膜的弹性模量为1Gpa～5Gpa。
  3. 根据权利要求1所述的保护膜，其特征在于，所述保护膜还包括自修复层，所述自修复层设于所述弹性层远离所述粘接层的表面。
  4. 根据权利要求3所述的保护膜，其特征在于，所述保护膜还包括保护层，所述保护层连接于所述粘接层和所述收缩层之间。
  5. 根据权利要求4所述的保护膜，其特征在于，所述保护膜还包括粘胶层，所述粘胶层连接于所述收缩层和所述弹性层之间。
  6. 根据权利要求1所述的保护膜，其特征在于，所述显示屏包括功能孔，所述保护膜上设有贯穿所述保护膜的通孔，所述通孔用以露出所述功能孔。
  7. 一种保护膜组件，其特征在于，包括第一离型膜、第二离型膜和如权利要求1-6任意一项所述的保护膜，所述保护膜连接于所述第一离型膜和所述第二离型膜之间，所述第一离型膜覆盖所述粘接层背离所述收缩层的表面，所述第二离型膜覆盖所述保护膜背离所述粘接层的表面。
  8. 根据权利要求7所述的保护膜组件，其特征在于，所述保护膜组件还包括第一撕手部，所述第一撕手部与所述第一离型膜连接，且伸出所述保护膜的边缘。
  9. 根据权利要求8所述的保护膜组件，其特征在于，所述第一撕手部与所述第一离型膜一体成型。
  10. 根据权利要求8所述的保护膜组件，其特征在于，所述第一离型膜包括角部，所述角部与所述第一撕手部连接，所述第一撕手部沿背离所述角部的方向延伸。
  11. 根据权利要求8-10任一项所述的保护膜组件，其特征在于，所述第一撕手部的数量为两个，两个所述第一撕手部间隔设置。
  12. 根据权利要求11所述的保护膜组件，其特征在于，所述保护膜组件还包括连接部，所述连接部与所述第一离型膜间隔设置且连接于两个所述第一撕手部之间。
  13. 根据权利要求8-12任一项所述的保护膜组件，其特征在于，所述第一撕手部包括相对设置的第一表面和第二表面，所述第一表面和/或所述第二表面为粗糙面。
  14. 根据权利要求8所述的保护膜组件，其特征在于，所述第一撕手部的数量为多个，所述第一离型膜包括多个离型部分，每一所述离型部分分别与一个所述第一撕手部连接。
  15. 根据权利要求8所述的保护膜组件，其特征在于，所述保护膜组件还包括第二撕手部，所述第二撕手部与所述第二离型膜连接，且伸出所述保护膜的边缘。
  16. 根据权利要求15所述的保护膜组件，其特征在于，所述第二撕手部与所述第二离型膜一体成型。
  17. 根据权利要求16所述的保护膜组件，其特征在于，所述第一撕手部在所述第二离 型膜上的投影与所述第二撕手部间隔。
  18. 一种显示屏组件，其特征在于，包括显示屏和权利要求1-6任意一项所述的保护膜，所述保护膜的所述粘接层粘接于所述显示屏上。
  19. 一种终端，其特征在于，包括壳体和权利要求18所述的显示屏组件，所述显示屏组件安装于所述壳体上。
PCT/CN2020/111049 2019-09-18 2020-08-25 保护膜、保护膜组件、显示屏组件及终端 WO2021052118A1 (zh)

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