TW202101085A - Protective film and packaging structure - Google Patents

Abstract

A protective film includes a matrix, a first release liner, a second release liner, and a handle. The first release liner adheres to the matrix. The first release liner has a first surface. The first surface is away from the matrix. The second release liner adheres to the first surface of the first release liner. The second release liner has a second surface. The second surface is away from the matrix. A handle adheres to the first surface of the first release liner and the second surface of the second release liner.

Description

Protective film and packaging structure

The invention relates to a protective film and a packaging structure using the protective film, in particular to a protective film that prevents foreign matter from entering the packaging structure and a packaging structure using the protective film.

In order to prevent the optical film or panel of the optoelectronic product from being scratched, dirty or deformed during the transportation or storage process, the optoelectronic product is covered with a protective film on the packaging structure, optical film or On the panel.

Generally speaking, paper tape is used to fix the protective film on the optoelectronic product during transportation. However, this method is likely to cause foreign matter to enter from the gap between the protective film and the optoelectronic product, thereby causing scratches on the packaging structure, optical film or panel.

Therefore, how to propose a protective film that can solve the above-mentioned problems is one of the problems that the industry urgently wants to invest in research and development resources to solve.

In view of this, one purpose of the present invention is to provide an effective Prevent foreign matter from entering the protective film and the protective film of optoelectronic products, and the packaging structure using the protective film.

In order to achieve the above objective, according to one embodiment of the present invention, a protective film includes a substrate, a first release film, a second release film, and a handle. The first release film adheres to the substrate. The first release film has a first surface. The first surface is away from the substrate. The second release film is adhered to the first surface of the first release film. The second release film has a second surface. The second surface is away from the substrate. The handle is adhered to the first surface of the first release film and the second surface of the second release film.

In one or more embodiments of the present invention, the above-mentioned protective film further includes a first adhesive layer. The first release film is adhered to the substrate through the first adhesive layer. The viscosity of the first adhesive layer to the substrate is greater than the viscosity of the first adhesive layer to the first release film.

In one or more embodiments of the present invention, the above-mentioned protective film further includes a second adhesive layer. The second release film is adhered to the first release film through the second adhesive layer. The viscosity of the second adhesive layer to the second release film is greater than the viscosity of the second adhesive layer to the first release film.

In one or more embodiments of the present invention, the above-mentioned protective film further includes a first adhesive layer and a second adhesive layer. The first adhesive layer is disposed between the substrate and the first release film. The second adhesive layer is disposed between the first release film and the second release film. The viscosity of the second adhesive layer to the first release film is less than the viscosity of the first adhesive layer to the first release film.

In one or more embodiments of the present invention, the aforementioned protective film further includes a third adhesive layer. The third adhesive layer is arranged between the handle and the first surface of the first release film. The third adhesive layer is more viscous to the first release film than the first adhesive layer Adhesion to the first release film.

In one or more embodiments of the present invention, the aforementioned protective film further includes a third adhesive layer. The third adhesive layer is arranged between the handle and the second surface of the second release film. The viscosity of the third adhesive layer to the second release film is greater than the viscosity of the second adhesive layer to the first release film.

In one or more embodiments of the present invention, the width of the aforementioned second release film is smaller than the width of the first release film.

In one or more embodiments of the present invention, the above-mentioned first release film includes an inner film portion and an outer film portion. The outer membrane part surrounds the inner membrane part. The second release film is adhered to the inner membrane part.

In one or more embodiments of the present invention, the inner film portion and the outer film portion of the above-mentioned first release film are disconnected.

In one or more embodiments of the present invention, the aforementioned protective film further includes a third adhesive layer. The third adhesive layer is arranged between the handle and the first surface and between the handle and the second surface. One side of the third adhesive layer is flush with one side wall of the first release film.

In one or more embodiments of the present invention, the aforementioned third adhesive layer is further disposed between the handle and the side wall of the second release film.

In one or more embodiments of the present invention, the aforementioned protective film further includes a third adhesive layer. The third adhesive layer is arranged between the handle and the first surface and between the handle and the second surface. The third adhesive layer extends along the handle in a direction away from the first release film.

In order to achieve the above objective, according to one embodiment of the present invention, a packaging structure includes an electronic device and a protective film. The protective film includes a substrate, adhesive Adhesive layer and release film. The adhesive layer is arranged on the substrate. The release film is arranged on the side of the adhesive layer away from the substrate. The width of the release film is smaller than the width of the adhesive layer. The side of the adhesive layer provided with the release film is adhered to the electronic device.

In one or more embodiments of the present invention, the above-mentioned electronic device further includes a frame. The frame has an opening. The release film is set corresponding to the opening.

In one or more embodiments of the present invention, an outer edge of the aforementioned opening is flush with one side of the release film.

In one or more embodiments of the present invention, the above-mentioned release film is at least partially overlapped with the frame.

In one or more embodiments of the present invention, the width of the aforementioned release film is equal to the width of the opening.

In one or more embodiments of the present invention, the width of the aforementioned release film is greater than the width of the opening.

In one or more embodiments of the present invention, the aforementioned electronic device further includes a panel. The frame is arranged on the panel.

In one or more embodiments of the present invention, the surface of the above-mentioned release film facing the electronic device is non-sticky.

In summary, the protective film and packaging structure of the present invention attach the handle to the first release film and the second release film, so that part of the first release film and the second release film can be torn off at the same time through the handle. Divide to expose the adhesive layer on the substrate. In this way, when the protective film is attached to the packaging structure, the release film can protect the components on the packaging structure and prevent them from being stuck by the adhesive layer.

The above description is only used to explain the problem to be solved by the present invention, the technical means to solve the problem, and the effects produced by it, etc., the specific details of the present invention Section will be introduced in detail in the following implementation and related drawings.

10.50‧‧‧Packaging structure

100, 100’, 200, 500’‧‧‧Protective film

110‧‧‧Substrate

110a, 120a, 120b, 130a, 130b, 140a, 140b‧‧‧surface

112‧‧‧First adhesive layer

120、520‧‧‧First release film

122‧‧‧The first inner membrane part

124‧‧‧The first outer membrane part

126、138‧‧‧ side wall

130‧‧‧Second release film

132‧‧‧Second adhesive layer

134‧‧‧Second inner membrane part

136‧‧‧Second outer membrane part

140、240‧‧‧Tear film handle

142、242‧‧‧Third adhesive layer

142a, 242a‧‧‧ side

144‧‧‧First end

146‧‧‧Second end

300‧‧‧Electronic device

310‧‧‧Frame

310a‧‧‧Opening

310b‧‧‧Top surface

320‧‧‧Panel

322‧‧‧Optical Film

d‧‧‧Distance

L1, L2‧‧‧Length

W1, W2, W3, W4, W12, W52‧‧‧Width

In order to make the above and other objects, features, advantages and embodiments of the present invention more comprehensible, the description of the accompanying drawings is as follows: 1A is a cross-sectional view showing a protective film of an embodiment of the present invention.

Figure 1B is a front view showing the protective film in Figure 1A.

Figures 2 to 5 are schematic cross-sectional views illustrating the manufacturing of a protective film according to an embodiment of the present invention.

Fig. 6 is a cross-sectional view of a protective film according to another embodiment of the present invention.

Figure 7 is a cross-sectional view showing a packaging structure according to an embodiment of the present invention.

Figure 8 is a cross-sectional view of a packaging structure according to another embodiment of the present invention.

Hereinafter, multiple embodiments of the present invention will be disclosed in the form of drawings. For clear description, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventionally used structures and elements will be shown in a simple schematic manner in the drawings.

Please refer to Figure 1A and Figure 1B. FIG. 1A is a cross-sectional view of the protective film 100 according to an embodiment of the present invention. 1B is a top view showing the protective film 100 in FIG. 1A. As shown in Figure 1A, the protective film of this embodiment The protective film 100 is suitable for being attached to a packaging structure, an optical film or a panel of an optoelectronic product (such as a display device) to prevent the optical film or the panel from being scratched, dirty or deformed.

The protective film 100 includes a substrate 110, a first release film 120, a second release film 130 and a film tearing handle 140. The surface 110 a of the substrate 110 has a first adhesive layer 112. The first release film 120 is adhered to the substrate 110 through the first adhesive layer 112, so that the first adhesive layer 112 is located between the substrate 110 and the first release film 120. The first release film 120 has two surfaces 120a and 120b. The two surfaces 120a, 120b are opposite to each other. The surface 120 a is located on the side of the first release film 120 away from the substrate 110. The surface 120b is located on the side of the first release film 120 close to the substrate 110. The first release film 120 includes a first inner film portion 122 and a first outer film portion 124. The first outer membrane portion 124 surrounds the first inner membrane portion 122 (as shown in Figure 1B). The first outer film portion 124 and the first inner film portion 122 are in a broken state through processing (for example, punching).

In some embodiments, the substrate 110 is made of polyethylene terephthalate (PET), polyimide (PI), polypropylene (PP), or polyethylene (polyethylene, PE) and other materials, but the present invention is not limited to this.

The second release film 130 has a second adhesive layer 132 and two surfaces 130a and 130b. The two surfaces 130a, 130b are opposite to each other. The surface 130 a is located on the side of the second release film 130 away from the substrate 110. The surface 130b is located on the side of the second release film 130 close to the substrate 110. The second adhesive layer 132 is disposed on the surface 130 b of the second release film 130. The second release film 130 is adhered to by the second adhesive layer 132 On the surface 120 a of the first release film 120, the second adhesive layer 132 is located between the first release film 120 and the second release film 130. Specifically, as shown in FIG. 1B, the second release film 130 is adhered to the first inner film portion 122 of the first release film 120. The second release film 130 has a width W2 smaller than the width W1 of the first release film 120. The length L2 of the second release film 130 is also less than the length L1 of the first release film 120. Therefore, the area of the second release film 130 is smaller than the area of the first release film 120.

Please continue to refer to Figure 1A. The tear film handle 140 has a third adhesive layer 142 and two surfaces 140a and 140b. The surface 140a is located on the side of the film tearing handle 140 away from the substrate 110. The surface 140b is located on the side of the tear film handle 140 close to the substrate 110. The third adhesive layer 142 is disposed on the surface 140 b of the tear film handle 140. The film tearing handle 140 is adhered to the first outer film portion 124 of the first release film 120 and the second release film 130 through the third adhesive layer 142.

Specifically, the tear film handle 140 is adhered to at least part of the surface 120a of the first outer film portion 124 away from the substrate 110, and at least part of the second release film 130 away from the substrate 110 through the third adhesive layer 142 On surface 130a. Since there is a step difference between the second release film 130 and the first release film 120, the third adhesive layer 142 is substantially along the surface 130a of the second release film 130 and the sidewall 138 of the second release film 130 And the surface 120a of the first release film 120 is adhered to the first release film 120 and the second release film 130, so that the third adhesive layer 142 is located on the surface 120a of the first release film 120 and the second release film Between the surface 130a of 130, the side wall 138 and the tear film handle 140.

The tear film handle 140 also has a first end 144 and a second end 146. The first end 144 is located on the surface 130a of the second release film 130, so that the first end 144 of the tear film handle 140, the second release film 130 and the first release film 120 The first inner film portions 122 are sequentially stacked toward the substrate 110. The second end 146 of the tear film handle 140 is located outside the outer edge of the first release film 120. The third adhesive layer 142 extends along the surface 140b of the tear film handle 140 in a direction away from the first release film 120 and the second release film 130, so that the third adhesive layer 142 is away from one side of the second release film 130 142a is located between the side wall 126 of the first release film 120 and the second end 146 of the tear film handle 140, but the invention is not limited to this.

In the protective film 100, the viscosity of the first adhesive layer 112 to the substrate 110 is greater than the viscosity of the first adhesive layer 112 to the first release film 120. The adhesion of the second adhesive layer 132 to the second release film 130 is greater than the adhesion of the second adhesive layer 132 to the first release film 120, and the adhesion of the second adhesive layer 132 to the first release film 120 The adhesiveness is less than the adhesiveness of the first adhesive layer 112 to the first release film 120. The viscosity of the third adhesive layer 142 to the first release film 120 is greater than that of the first adhesive layer 112 to the first release film 120. Furthermore, the viscosity of the third adhesive layer 142 to the second release film 130 is greater than the viscosity of the second adhesive layer 132 to the first release film 120.

In some embodiments, the first adhesive layer 112 and the second adhesive layer 132 are acrylic acid adhesive layers or organosilicon adhesives that do not remain adhesive, but the invention should not be limited thereto.

As in the above configuration, the second release film 130 adheres to the first release film 120 to keep the surface 120a of the first release film 120 clean, so as to prevent foreign matter from adsorbing on the first release film 120. During use, since the tear film handle 140 is simultaneously adhered to the first outer film portion 124 of the first release film 120 and the second release film 130, the first release film 120 can be removed at the same time when the film is torn. An outer film portion 124 and a second release film 130. In this way, the tearing time can be effectively reduced, and the convenience of attaching the protective film 100 to the protected object can be improved. On the other hand, the first The first outer film portion 124 and the first inner film portion 122 of the release film 120 have been cut off by the punching process. Therefore, after the film is torn off, the first inner film portion 122 will remain on the substrate 110. The first outer film portion 124 will not be torn off together. The first inner film portion 122 remaining on the substrate 110 can protect the optical elements (such as polarizers and panels, but the present invention should not be limited to this) in the packaging structure, and prevent the optical elements from sticking to the first adhesive layer 112 Sticky and contaminate optical components.

Please refer to Figures 2~4. FIGS. 2 to 4 are schematic cross-sectional views illustrating the manufacturing of the protective film 100 according to an embodiment of the present invention. As shown in Figure 2, first, a substrate 110 is provided. The surface 110 a of the substrate 110 has a first adhesive layer 112. The adhesion between the surface 120b of the first release film 120 and the first adhesive layer 112 makes the first release film 120 adhere to the substrate 110, and the adhesion of the first adhesive layer 112 to the substrate 110 is greater than that of the first adhesive layer 112. The adhesiveness of the adhesive layer 112 to the first release film 120.

Next, as shown in FIG. 3, a second release film 130 is provided. The surface 130 b of the second release film 130 has a second adhesive layer 132. The surface 130 b of the second release film 130 is adhered to the surface 120 a of the first release film 120 away from the substrate 110 via the second adhesive layer 132, so that the first release film 120 and the second release film 130 overlap. The adhesion of the second adhesive layer 132 to the second release film 130 is greater than the adhesion of the second adhesive layer 132 to the first release film 120, and the adhesion of the second adhesive layer 132 to the first release film 120 The adhesiveness is less than the adhesiveness of the first adhesive layer 112 to the first release film 120.

In some embodiments, the outer edge of the second release film 130 is aligned with the outer edge of the first release film 120. In other embodiments, the outer edge of the second release film 130 is not aligned with the outer edge of the first release film 120. The invention should not be limited to this.

Approaching from the outer edges of the first release film 120 and the second release film 130 The first release film 120 and the second release film 130 (as shown by the dashed line in Figure 3) are punched out in a zigzag shape at an appropriate distance d from the center, so that the first release film 120 is divided into the first inner film part 122 and the first outer film portion 124, the second release film 130 is divided into a second inner film portion 134 and a second outer film portion 136. The first outer film portion 124 surrounds the first inner film portion 122, and the first outer film portion 124 is disconnected from the first inner film portion 122. The second outer membrane part 136 surrounds the second inner membrane part 134, and the second outer membrane part 136 is disconnected from the second inner membrane part 134.

In some embodiments, the punching depth extends from the surface 130 a of the second release film to the surface 120 b of the first release film 120. In other embodiments, the punching depth extends from the surface 130 a of the second release film to the first adhesive layer 112.

As shown in FIG. 4, the second outer film portion 136 of the second release film 130 is removed after punching, so that the first outer film portion 124 of the first release film 120 is exposed. In other words, after the second outer film portion 136 of the second release film 130 is removed, the width W2 of the second release film 130 is smaller than the width W1 of the first release film 120, and the length L2 of the second release film 130 It is less than the length L1 of the first release film 120 (as shown in Figure 1B). Since the viscosity of the second adhesive layer 132 to the second release film 130 is greater than that of the second adhesive layer 132 to the first release film 120, and the adhesion of the second adhesive layer 132 to the first release film 120 The viscosity is less than that of the first adhesive layer 112 to the first release film 120. Therefore, when the second outer film portion 136 of the second release film 130 is removed, the first outer film of the first release film 120 The portion 124 will remain on the substrate 110 and will not be torn off following the second outer film portion 136 of the second release film 130.

Then, as shown in FIG. 5, the tear film handle 140 is adhered to the first outer film portion 124 of the first release film 120 and the second release film 130. Tear film handle The surface 140 b close to the substrate 110, the first release film 120 and the second release film 130 has a third adhesive layer 142. The tear film handle 140 is at least partially adhered to the surface 120a of the first outer film portion 124, the sidewall 138 of the second release film 130, and the surface 130a of the second release film 130 by the third adhesive layer 142, so that the tear film The first end 144 of the handle 140 overlaps the surface 130 a of the second release film 130, and the second end 146 of the tear film handle 140 is located outside the outer edge of the first release film 120.

Further, the viscosity of the third adhesive layer 142 to the first release film 120 is greater than the viscosity of the first adhesive layer 112 to the first release film 120, and the third adhesive layer 142 has a higher viscosity to the second release film 120 The viscosity of the film 130 is greater than the viscosity of the second adhesive layer 132 to the first release film 120.

Please refer to Figure 6. FIG. 6 is a cross-sectional view of a protective film 200 according to another embodiment of the present invention. As shown in FIG. 6, in this embodiment, the protective film 200 includes a substrate 110, a first release film 120, a second release film 130, and a tear-off handle 240. The substrate 110, the first release film 120, and the second release film 130 in this embodiment are all the same as the embodiments shown in Figs. 1A and 1B. Therefore, reference may be made to the aforementioned related descriptions, which will not be repeated here. It should be noted that the difference between this embodiment and the embodiment shown in Figures 1A and 1B is that the side 242a of the third adhesive layer 242 of this embodiment away from the second release film 130 is different from the first release film 130. The side walls 126 of the membrane 120 are flush. Therefore, the user's hand can be prevented from touching the third adhesive layer 242.

Please refer to Figure 7. FIG. 7 is a cross-sectional view of the packaging structure 10 according to an embodiment of the present invention. As shown in FIG. 7, the packaging structure 10 includes a protective film 100' and an electronic device 300. The protective film 100' is the protective film 100 after tearing off the second release film 130 and the first outer film portion 124 of the first release film 120 膜100'. Therefore, the protective film 100' includes the substrate 110, the first adhesive layer 112, and the first inner film portion 122 of the first release film 120, and the first release film 120 has a width W12 smaller than that of the first adhesive layer 112 Width W3. Specifically, since the first outer film portion 124 of the first release film 120 has been removed, the area of the first release film 120 is smaller than the area of the first adhesive layer 112.

The electronic device 300 includes a frame 310 and a panel 320. The frame 310 has an opening 310a. The panel 320 includes an optical film 322. The panel 320 is arranged on one side of the frame 310, that is, as shown in FIG. 7, the panel 320 is arranged under the frame 310. In addition, the optical film 322 of the panel 320 is provided corresponding to the opening 310 a of the frame 310. The protective film 100' is adhered to the other side of the frame 310 through the first adhesive layer 112, that is, as shown in the figure, the protective film 100' is adhered to the top surface 310b of the frame 310. The first release film 120 is disposed corresponding to the opening 310 a of the frame body 310, so that the first release film 120 is located between the first adhesive layer 112 and the optical film 322 of the panel 320.

The outer edge of the first release film 120 is flush with the outer edge of the opening 310a. In other words, the width W12 of the first release film 120 is equal to the width W4 of the opening 310a. Furthermore, the area of the first release film 120 is equal to the area of the opening 310a, but the invention should not be limited to this.

As in the above configuration, the protective film 100' is adhered to the frame 310 via the first adhesive layer 112, so that the protective film 100' can be attached to the frame 310 without being easily separated. In addition, the protective film 100' substantially completely covers the opening 310a of the frame 310. Thereby, foreign matter can be effectively prevented from entering the opening 310a of the frame body 310, so as to avoid scratches or contamination of the panel 320. In addition, the non-adhesive first release film 120 is located between the first adhesive layer 112 and the optical film 322, which can prevent the first adhesive The layer 112 adheres to the optical film 322, causing contamination of the optical film 322.

Please refer to Figure 8. Fig. 8 is a cross-sectional view of a packaging structure 50 according to another embodiment of the present invention. As shown in FIG. 8, in this embodiment, the packaging structure 50 includes a protective film 500' and an electronic device 300. The protective film 500' includes a substrate 110, a first adhesive layer 112, and a first release film 520. The substrate 110, the first adhesive layer 112, and the electronic device 300 in this embodiment are the same as those in the embodiment shown in FIG. 7. Therefore, reference may be made to the aforementioned related descriptions, which will not be repeated here. It should be noted that the difference between this embodiment and the embodiment shown in FIG. 7 is that the first release film 520 of this embodiment is at least partially overlapped with the top surface 310 b of the frame 310. In other words, the width W52 of the first release film 520 is greater than the width W2 of the opening 310a. Further, the area of the first release film 520 is larger than the area of the opening 310a.

In some embodiments, at least one side of the first release film 120/520 is flush with the outer edge of the corresponding opening 310a, and the remaining three sides overlap with the top surface 310b of the frame 310, but the invention should not be limited to this .

From the above detailed description of the specific embodiments of the present invention, it can be clearly seen that the protective film and packaging structure of the present invention attach the handle to the first release film and the second release film so that part of the first release film The release film and the second release film can be torn off at the same time through the handle to expose the adhesive layer on the substrate. In this way, when the protective film is attached to the packaging structure, the release film can protect the components on the packaging structure and prevent them from being stuck by the adhesive layer.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone who is familiar with this technique can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention Range when Subject to the definition of the attached patent application scope.

100‧‧‧Protective film

110‧‧‧Substrate

110a, 120a, 120b, 130a, 130b, 140a, 140b‧‧‧surface

112‧‧‧First adhesive layer

120‧‧‧The first release film

122‧‧‧The first inner membrane part

124‧‧‧The first outer membrane part

126、138‧‧‧ side wall

130‧‧‧Second release film

132‧‧‧Second adhesive layer

140‧‧‧Tear film handle

142‧‧‧The third adhesive layer

142a‧‧‧edge

144‧‧‧First end

146‧‧‧Second end

W1, W2‧‧‧Width

Claims (20)

A protective film, comprising: a substrate; a first release film adhered to the substrate and having a first surface away from the substrate; a second release film adhered to the first release film On the first surface of the film, there is a second surface away from the substrate; and a handle adhered to the first surface of the first release film and the second surface of the second release film. The protective film according to claim 1, further comprising a first adhesive layer, the first release film is adhered to the substrate through the first adhesive layer, and the first adhesive layer is to the base The viscosity of the material is greater than the viscosity of the first adhesive layer to the first release film. The protective film according to claim 1, further comprising a second adhesive layer, the second release film is adhered to the first release film through the second adhesive layer, and the second adhesive layer is opposite to The viscosity of the second release film is greater than the viscosity of the second adhesive layer to the first release film. The protective film according to claim 1, further comprising: a first adhesive layer disposed between the substrate and the first release film; and a second adhesive layer disposed on the first release film Film and the second release film Among them, the viscosity of the second adhesive layer to the first release film is less than the viscosity of the first adhesive layer to the first release film. The protective film according to claim 4, further comprising a third adhesive layer disposed between the handle and the first surface of the first release film, and the third adhesive layer is opposite to the first release film The viscosity of the molded film is greater than the viscosity of the first adhesive layer to the first release film. The protective film according to claim 4, further comprising a third adhesive layer disposed between the handle and the second surface of the second release film, and the third adhesive layer is opposite to the second release film The viscosity of the molded film is greater than the viscosity of the second adhesive layer to the first release film. The protective film according to claim 1, wherein the width of the second release film is smaller than the width of the first release film. The protective film according to claim 1, wherein the first release film comprises: an inner film part; and an outer film part surrounding the inner film part, and the second release film is adhered to the inner film part on. The protective film according to claim 8, wherein the first release The inner membrane part and the outer membrane part of the membrane are broken. The protective film according to claim 1, further comprising a third adhesive layer disposed between the handle and the first surface and between the handle and the second surface, and one side of the third adhesive layer It is flush with a side wall of the first release film. The protective film according to claim 10, wherein the third adhesive layer is further disposed between the handle and a side wall of the second release film. The protective film according to claim 1, further comprising a third adhesive layer disposed between the handle and the first surface and between the handle and the second surface, and the third adhesive layer is along The handle extends in a direction away from the first release film. A packaging structure, comprising: an electronic device; and a protective film, comprising: a substrate; an adhesive layer arranged on the substrate; and a release film arranged on the adhesive layer away from the substrate One side, and the width of the release film is smaller than the width of the adhesive layer, wherein the side of the adhesive layer provided with the release film is adhered to the electronic device. The packaging structure according to claim 13, wherein the electronic device further comprises a frame, the frame has an opening, and the release film is provided corresponding to the opening. The packaging structure according to claim 14, wherein an outer edge of the opening is flush with one side of the release film. The packaging structure according to claim 14, wherein the release film is at least partially overlapped with the frame. The packaging structure according to claim 14, wherein the width of the release film is equal to the width of the opening. The packaging structure according to claim 14, wherein the width of the release film is greater than the width of the opening. The packaging structure according to claim 14, wherein the electronic device further includes a panel, and the frame is disposed on the panel. The packaging structure according to claim 13, wherein a surface of the release film facing the electronic device is non-sticky.

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