TWI631885B - Protective plate and method for affixing protective plate to electronic device - Google Patents

Abstract

The present disclosure provides a method of protecting a diaphragm and securing a protective film on an electronic device. The protective film is fixed on the front casing of the electronic device by an adhesive layer, and the adhesive layer fills all the gaps between the front casing and the protective film, wherein the front casing and the adhesive layer A transparent film is also provided between them.

Description

Method for protecting diaphragm and fixing protective film on electronic device

The present disclosure relates to a protective film, and more particularly to a method for protecting a protective film of an electronic device and fixing the protective film on an electronic device.

With the advancement of technology and communication technology, portable electronic devices have become an indispensable and important item for modern people's lives. Common portable electronic devices include mobile phones, tablets, cameras, navigation devices, and the like. In general, in order to prevent the electronic device from being damaged by sliding or collision, the user usually installs a protective film on the front side of the portable electronic device to prevent the screen of the portable electronic device from being scratched or collided. And broken.

Please refer to FIG. 1 , FIG. 2 and FIG. 3 . FIG. 1 is a schematic view showing a three-dimensional assembly of a conventional protective film 20 and an electronic device 10 , and FIG. 2 is a view showing the protective film 20 and the electronic device of FIG. 1 . 10 is a front view after assembly, and Fig. 3 is a cross-sectional view taken along line AA of Fig. 2. The electronic device 10 includes a front case 11 and a back case 12, and the front case 11 is provided with a display screen. One side of the protective film 20 has an adhesive layer 30 for fixing the protective film 20 to the front case 11 of the electronic device 10.

As shown in Fig. 3, the periphery of the front case 11 is bent to form a circular arc side. However, since the protective film 20 is a flat transparent hard plate, the protective film 20 is overlaid on the front case 11. After that, the periphery of the protective film 20 is spaced apart from the periphery of the front casing 11 by a distance D1. That is, the conventional protective film 20 cannot be protected to the arcuate side of the front case 11. Further, due to processing limitations, if the adhesive layer 30 is to be placed on one side of the protective film 20 in advance, it is necessary to make the protective film 20 have a certain thickness, which makes it difficult for the protective film 20 to be thinned.

In view of the above, it is necessary to provide a protective film to solve the problems of the prior art.

In order to solve the above technical problems, an object of the present disclosure is to provide a protective film and a method for fixing a protective film on an electronic device, by forming a layer of adhesive in a specific manner, and providing a thin type and configuration and electrons. The protective film corresponding to the front casing of the device is used to solve the problem that the protective film of the prior art cannot provide sufficient protection effect and is difficult to be thinned.

In order to achieve the above object, the present disclosure provides a protective film for an electronic device, the electronic device including a back case, a front case opposite to the back case, and an outer peripheral wall disposed on the back case Between the front casings, and a display screen is disposed on the front casing, wherein the protective film is fixed on the front casing by an adhesive layer, and the adhesive layer fills the front casing and the protection A total gap between the diaphragms, and a transparent film disposed between the front casing and the adhesive layer.

In a preferred embodiment of the present disclosure, the protective film and the front case have mutually corresponding configurations.

In a preferred embodiment of the present disclosure, the periphery of the front case is bent to form an arc and continues to the outer peripheral wall to form a circular arc edge, and wherein the outer periphery of the protective film has a circular arc shape. , for the arc side of the front casing.

In one preferred embodiment of the present disclosure, the material of the adhesive layer comprises a UV curable adhesive.

In a preferred embodiment of the present disclosure, the protective film is an integrally formed transparent hard plate.

The present disclosure also provides a method for fixing a protective film to an electronic device, the electronic device comprising a back case, a front case opposite to the back case, and a peripheral wall disposed on the back case Between the front casings, and a display screen is disposed on the front casing, wherein the method comprises: coating a transparent film outside the front casing; and using the adhesive to draw a center position corresponding to the front casing a cross pattern, wherein the cross pattern is composed of a horizontal strip pattern and a vertical pattern, and the cross strip pattern of the cross pattern is parallel to the two short sides of the front case and connects the two long sides of the front case, And the vertical pattern of the cross pattern is parallel to the two long sides of the front case, and the two ends of the vertical pattern are respectively separated from the two short sides of the front case by a distance; the cross pattern is used by using the adhesive The horizontal strip pattern is a symmetric axis, and a pair of symmetric arc patterns are drawn on the transparent film, wherein the vertex of the curved pattern is located at one end of the vertical pattern of the cross pattern, and the curved pattern is The endpoints are respectively located in the pair of front housings Extending the patterned adhesive to cover the transparent film over its entire surface to form an adhesive layer; and securing a protective film to the front shell by the adhesive layer Body, and the adhesive layer fills all the gaps between the transparent film and the protective film.

In a preferred embodiment of the present disclosure, the vertical pattern is spaced from the short side of the front case by a distance equal to one fifth of the long side of the front case.

In a preferred embodiment of the present disclosure, the protective film and the front case have mutually corresponding configurations.

In a preferred embodiment of the present disclosure, the periphery of the front case is bent to form an arc and continues to the outer peripheral wall to form a circular arc edge, and wherein the outer periphery of the protective film has a circular arc shape. , for the arc side of the front casing.

In a preferred embodiment of the present disclosure, the step of fixing a protective film on the front casing by the adhesive layer further comprises: placing the protective film over the adhesive layer, and The ultraviolet light illuminates the electronic device to cure the adhesive layer, thereby fixing the protective film to the front case.

In a preferred embodiment of the present disclosure, the protective film is an integrally formed transparent hard plate.

In a preferred embodiment of the present disclosure, before the use of the adhesive to draw a cross pattern corresponding to the center of the front housing, the method further comprises: coating a transparent film outside the front housing.

In a preferred embodiment of the present disclosure, after the protective film is fixed on the front casing by the adhesive layer, the method further comprises: removing the transparent opening of the speaker opening and the button covering the electronic device. membrane.

Compared with the prior art, the present disclosure forms an adhesive layer by a specific method, and provides a protective film which is thin and conforms to the front casing of the electronic device, and fills the protective film by the adhesive layer. A gap with the front housing, whereby the protective diaphragm can completely protect the entire front of the electronic device to provide sufficient anti-scratch and anti-collision effects. Furthermore, since the adhesive layer and the protective film are separately formed separately, the protective film can be formed into a relatively thin shape without being limited by the processing.

10, 100‧‧‧ electronic devices

11, 110‧‧‧ front casing

12, 120‧‧‧ Back shell

130‧‧‧ peripheral wall

140‧‧‧Speaker opening

150‧‧‧ button

20,200‧‧‧Protection diaphragm

210‧‧‧First opening

220‧‧‧Second opening

30, 300‧‧ ‧ adhesive layer

311‧‧‧bar pattern

312‧‧‧ vertical pattern

313, 314‧‧‧ curved pattern

400‧‧‧Transparent film

D1, D2‧‧‧ distance

A-A, B-B‧‧‧ cut line

C‧‧‧ corresponds to the part of Figure 7

111, 401‧‧ ‧ border

1 is a schematic view showing a three-dimensional assembly of a conventional protective film and an electronic device; FIG. 2 is a front view showing the assembled protective film of FIG. 1 and an electronic device; FIG. 3 is a view along line AA of FIG. FIG. 4 to FIG. 6 are a series of perspective views and plan views showing a flow chart of a method for fixing a protective film on an electronic device according to a preferred embodiment of the present invention; FIG. 7 is a view 6 is a cross-sectional view taken along line BB; and FIG. 8 is an enlarged view showing a portion C of FIG. 7.

The above and other objects, features, and advantages of the present invention will become more apparent and understood.

4 to 6 are a series of perspective views and plan views showing a flow chart of a method for fixing the protective film 200 on the electronic device 100 according to a preferred embodiment of the present invention. The electronic device 100 includes a back case 120 (refer to FIG. 7), a front case 110, and an outer peripheral wall 130. The front case 110 is disposed between the back case 120 and the front case 110 with respect to the back case 120, and the outer peripheral wall 130. A display screen, a speaker opening 140, and a button 150 are disposed in the front housing 110. It can be understood that the electronic device 100 includes various portable electronic devices, such as a mobile phone, a notebook computer, a tablet computer, a camera, a navigation device, and the like.

First, as shown in FIG. 4, the casing 110 covers the transparent film 400 before the electronic device 100. The transparent film 400 is made of a flexible material to provide a better coating effect. Moreover, a viscous material is disposed on one surface of the transparent film 400 such that the transparent film 400 can be attached to the front housing 110 of the electronic device 100 by an adhesive material. In the present embodiment, the transparent film 400 covers the outer surface of the front case 110 in a full-face manner, that is, the transparent film 400 covers the speaker opening 140 and the button. 150.

Next, as shown in FIG. 5, a protective film 200 is provided on the transparent film 400. The protective film 200 is an integrally formed transparent hard plate (for example, a transparent hard plate including glass or acrylic plastic), and the protective film 200 and the front case 110 have mutually corresponding configurations. More specifically, the protective film 200 is provided with a first opening 210 corresponding to the speaker opening 140 and a second opening 220 corresponding to the button 150. Moreover, the periphery of the front housing 110 is bent to form an arc and continues to approach the outer peripheral wall 130, thereby forming a circular arc edge, and the outer periphery of the protective film 200 is also arc-shaped for the corresponding front housing 110. The arc edge, so that when the protective film 200 is assembled on the electronic device 100, the protective film 200 can completely protect the front housing 110 of the entire electronic device 100, in particular, the circle that can be protected to the front housing 110. Arc edges to provide adequate scratch and anti-collision effects.

As shown in FIG. 5, the protective film 200 is first fixed on the transparent film 400 by the adhesive layer 300 after forming an adhesive layer 300 on the transparent film 400 by a specific method. Specifically, the method of fixing the protective film 200 to the transparent film 400 includes the following steps.

First, as shown in FIG. 5, a cross pattern (such as a broken line shown in FIG. 5) is drawn at the center of the transparent film 400 using an adhesive, wherein the cross pattern is a strip pattern 311 and a vertical pattern 312. Composed of. The cross pattern bar pattern 311 is parallel to the two short sides of the front case 110 and connects the two long sides of the front case 110. Moreover, the vertical pattern 312 of the cross pattern is parallel to the two long sides of the front case 110, and the two ends of the vertical pattern 312 are respectively separated from the two short sides of the front case 110 by a distance D2. Preferably, the distance D2 of the vertical pattern 312 from the short side of the front case 110 is equal to one-fifth of the length of the long side of the front case 110.

Next, as shown in FIG. 5, a pair of symmetrical arc patterns 313 and 314 are drawn on the transparent film 400 by using the adhesive with the cross pattern bar pattern 311 as the axis of symmetry (as shown in FIG. 5). Dotted), wherein the vertices of the curved patterns 313 and 314 are located at one end of the vertical pattern 312 of the cross pattern, and the ends of the curved patterns 313 and 314 are respectively located at the opposite ends of the corresponding short sides of the front case 110 That is, the two end points of the arc patterns 313 and 314 respectively correspond to the four corners of the electronic device 100.

Next, the patterned adhesive is stretched and flattened by a suitable tool to cover the transparent film 400 over the entire surface, thereby forming an adhesive layer 300 on the transparent film 400.

Next, the protective film 200 is fixed on the transparent film 400 by the adhesive layer 300. Preferably, the material of the adhesive layer 300 comprises a UV curable adhesive. Correspondingly, the step of fixing the protective film 200 on the transparent film 400 is: placing the protective film 200 over the adhesive layer 300, and irradiating the front surface of the electronic device 100 with an ultraviolet light to cure the adhesive layer 300. Further, the protective film 200 is fixed to the transparent film 400.

As shown in FIG. 5, the size of the transparent film 400 may be larger than the size of the front case 110. More specifically, when the transparent film 400 is coated on the electronic device 100, the transparent film 400 not only completely covers the front case 110, but also the boundary 401 of the transparent film 400 exceeds the boundary 111 of the front case 110. That is, the boundary 401 of the transparent film 400 is located on the outer peripheral wall 130.

Next, as shown in FIG. 6, after the protective film 200 is fixed on the transparent film 400, the first opening 210 and the second opening 220 on the protective film 200 will cover the speaker opening 140 and The transparent film 400 at the position of the button 150 is removed to ensure that the electronic device can operate normally. Also, the size of the transparent film 400 is appropriately cut to align the boundary 401 of the transparent film 400 with the boundary 111 of the front case 110. In the present disclosure, a transparent film 400 of a larger size is disposed before the application of the adhesive, and the size of the transparent film 400 is appropriately cut after the adhesive is applied, thereby ensuring coating of the adhesive. The overflowing adhesive does not adhere to the outer peripheral wall 130 of the electronic device 100.

Please refer to Figure 7 and Figure 8. Figure 7 shows the section along the B-B section of Figure 6. The top view, and the eighth figure, show an enlarged view of the portion C of Fig. 7. The adhesive coating method of the present disclosure can make the spread of the adhesive more uniform and flat, thereby improving the adhesion between the subsequent protective film 200 and the front case 110. Therefore, as shown in FIG. 8, the adhesive layer 300 can fill all the gaps between the protective film 200 and the front case 110.

In summary, the present disclosure forms an adhesive layer by a specific method, and provides a thin protective film corresponding to the front casing of the electronic device, and fills the protective film with the adhesive layer. A gap between the housings, whereby the protective diaphragm can completely protect the entire front of the electronic device to provide sufficient anti-scratch and anti-collision effects. Furthermore, since the adhesive layer and the protective film are separately formed separately, the protective film can be formed into a relatively thin shape without being limited by the processing.

The present disclosure has been disclosed in the above preferred embodiments, and is not intended to limit the scope of the disclosure, and the present invention may be practiced without departing from the spirit and scope of the disclosure. Retouching, therefore, the scope of protection of this disclosure is subject to the definition of the scope of the patent application.

Claims (7)

A method of fixing a protective film on an electronic device, the electronic device comprising a back case, a front case opposite to the back case, and an outer peripheral wall disposed between the back case and the front case, And a display screen is disposed on the front casing, wherein the method comprises: coating a transparent film outside the front casing; and using a glue to draw a cross pattern at a center position corresponding to the front casing, wherein the cross The pattern is composed of a horizontal strip pattern and a vertical pattern, and the horizontal strip pattern of the cross pattern is parallel to the two short sides of the front case and connects the two long sides of the front case, and the cross pattern The vertical pattern is parallel to the two long sides of the front case, and the two ends of the vertical pattern are respectively spaced apart from the two short sides of the front case; the horizontal strip pattern of the cross pattern is The axis of symmetry draws a pair of symmetrical arc patterns on the transparent film, wherein the apex of the arc pattern is located at one end of the vertical pattern of the cross pattern, and the two ends of the curved pattern are respectively located at the Both ends of the corresponding short side of the front housing; Spreading the patterned plastic to cover the transparent film over the entire surface to form an adhesive layer; and fixing a protective film on the front casing by the adhesive layer, and making the adhesive The glue layer fills all the gaps between the transparent film and the protective film. The method of claim 1 , wherein the vertical pattern is spaced from the short side of the front case by a distance equal to five of the long side of the front case. One point is long. A method of securing a protective film according to claim 1, wherein the protective film and the front case have mutually corresponding configurations. The method for fixing a protective film according to claim 1, wherein the periphery of the front case is bent to form a circular arc and continues to approach the outer peripheral wall, thereby forming a circular arc edge, and wherein the The outer periphery of the protective film has a circular arc shape for corresponding to the circular arc side of the front casing. The method for fixing a protective film according to claim 1, wherein the step of fixing a protective film on the front case by the adhesive layer further comprises: placing the protective film at Above the adhesive layer, and irradiating the electronic device with an ultraviolet light, the adhesive layer is solidified, and the protective film is fixed on the front case. The method for securing a protective film according to claim 1, wherein the protective film is an integrally formed transparent hard plate. The method of claim 1 , wherein after the protective film is fixed on the front casing by the adhesive layer, the method further comprises: removing and covering the electronic The speaker opening of the device and the transparent film of the button.