TWI634365B - Method for manufacturing anti-scattering film and the substrate having the anti-scattering film - Google Patents

Abstract

An explosion-proof film manufacturing method comprising: forming a colloidal film layer on a substrate; and hardening the colloidal film layer to form an explosion-proof film.

Description

Explosion-proof film manufacturing method and substrate with explosion-proof film

The present invention relates to an explosion-proof membrane, and more particularly to an explosion-proof membrane manufacturing method and a substrate having an explosion-proof membrane.

Smart phones, tablets, etc. have penetrated into the lives of most families and become a necessity for people. The big screens of smart phones and tablets have become the main features of such products. Due to the portability of such products, the safety of such products is particularly valued, and one of the safety requirements is explosion protection. The concept of explosion-proof is that it is hoped that such a large screen will not produce sharp glass fragments and stab the user when it is broken due to an accident. Therefore, the design of the explosion-proof membrane was born.

At present, the explosion-proof membrane of the smart phone and the flat plate is disposed on the screen. After the explosion-proof membrane is completed, the explosion-proof membrane is attached to the inner surface of the glass in the process. Pre-made in two ways, a layer of PET + explosion-proof film adhesive layer, or a layer of PET + double-sided explosion-proof film adhesive layer. Both of these methods have the potential to have a high rate of non-performing.

In addition, smart phones and tablets are gradually designed with curved glass. For the design of such curved glass, it is more difficult to carry out the aforementioned explosion-proof film bonding process.

Therefore, how to design a new explosion-proof membrane manufacturing method, the formation of the explosion-proof membrane can be simpler, higher yield, and even can be applied to curved glass, which has become the direction that smart phone and tablet product developers hope to develop.

In order to achieve the above object, the present invention provides a method for manufacturing an explosion-proof film and a substrate having an explosion-proof film, which can be used to manufacture an explosion-proof film without a carrier substrate, thereby obtaining a simple process, high yield, and even application to a curved glass. Special technical effects.

The invention provides a method for manufacturing an explosion-proof membrane, comprising: forming a colloidal film layer on a substrate; and hardening the colloidal film layer to form an explosion-proof film.

The invention further provides a substrate with an explosion-proof membrane, comprising: a substrate; and an explosion-proof film formed on the substrate, the thickness being between 5 and 500 micrometers (μm).

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

10‧‧‧Substrate

20‧‧‧Stained materials

21‧‧‧colloid film layer

22‧‧‧Explosion-proof membrane

30‧‧‧Spray head

40‧‧‧Light

50‧‧‧Rot surface substrate

Fig. 1 is a view showing an embodiment of a flow chart of a method for producing an explosion-proof film of the present invention.

2A-2D is a schematic cross-sectional flow diagram of the method for producing an explosion-proof film of the present invention in the flow of Fig. 1.

Fig. 3 is a view showing another embodiment of the flow chart of the method for producing an explosion-proof film of the present invention.

4A-4D is a schematic cross-sectional flow diagram of the method for producing an explosion-proof film of the present invention in the flow of FIG.

According to an embodiment of the present invention, the present invention provides an explosion-proof film manufacturing method and a substrate having an explosion-proof film, which can be used to manufacture an explosion-proof film without a carrier substrate, thereby obtaining a simple process, high yield, and even application to Special technical effects on curved glass.

First, please refer to FIG. 1 , which is a flow chart of a method for manufacturing an explosion-proof film according to the present invention, and is accompanied by a cross-sectional process diagram of FIG. 2A-2D. The process of manufacturing the explosion-proof film of the present invention includes: Step 101: Forming a The colloidal film layer is on a substrate. Please refer to FIG. 2A, which is a schematic diagram of a method for forming a colloidal film layer on a substrate, and a spray method or an inkjet method can be applied. In Fig. 2A, the glue 20 required for the colloidal film layer is uniformly sprayed onto the substrate 10 through the spray head 30 of the spray coating apparatus. Through the formation of the above two different colloidal film layers, the present invention can control the thickness of the explosion-proof film between 5 and 500 micrometers (μm). Referring to FIG. 2B, the completed colloidal film layer 21 is uniformly formed on the substrate. 10 on. The glue material of the colloidal film layer may be selected from one of the following: a silicone-based rubber, an acrylic-based rubber, and a polyurethane (PU)-based rubber. The principle of choice is to have good bonding properties with the substrate material and to have colloidal properties after curing.

Step 102: Hardening the colloidal film layer to form an explosion-proof film. The method of hardening the colloidal film layer may be selected from one of the following methods: a photocuring method, a thermosetting method, and a photothermal curing method. The hardened explosion-proof membrane has a surface cause value greater than 36. Please refer to FIG. 2C, which is an embodiment using a photo-solid method, using light 40 to cure the colloidal film layer 21. Then, you can complete the defense of the 2D picture. The blasting film 22, which has a colloidal property after curing, can adhere to the substrate 10 after the substrate 10 is broken.

Next, please refer to FIG. 3 , which is a flow chart of the method for manufacturing an explosion-proof film of the present invention, which is used for the production of the explosion-proof film of the curved substrate 50, and is also described in conjunction with the cross-sectional process diagram of FIG. 4A-4D. The method for manufacturing a curved substrate explosion-proof film comprises the following steps: Step 111: forming a colloidal film layer on a curved substrate. Please refer to FIG. 4A, which is a schematic diagram of a method for forming a colloidal film layer on a curved substrate, and a spray method or an inkjet method can be applied. In Fig. 4A, the glue 20 required for the colloidal film layer is uniformly sprayed onto the curved substrate 50 through the spray head 30 of the spray coating apparatus. Through the formation of the above two different colloidal film layers, the present invention can control the thickness of the explosion-proof film between 5 and 500 micrometers (μm). Referring to FIG. 4B, the completed colloidal film layer 21 is uniformly formed on the curved surface. On the substrate 50. The glue material of the colloidal film layer may be selected from one of the following: a silicone-based rubber, an acrylic-based rubber, and a polyurethane (PU)-based rubber. The principle of choice is to have good bonding properties with the substrate material and to have colloidal properties after curing.

Step 102: Hardening the colloidal film layer to form an explosion-proof film. The method of hardening the colloidal film layer may be selected from one of the following methods: a photocuring method, a thermosetting method, and a photothermal curing method. The hardened explosion-proof membrane has a surface cause value greater than 36. Please refer to FIG. 4C, which is an embodiment using a photo-solid method, using light 40 to cure the colloidal film layer 21. Next, the explosion-proof film 22 of FIG. 4D can be completed, which still has a colloidal property after curing, and can adhere to the curved substrate 50 after the substrate 10 is broken.

In general, the substrate is mostly made of a glass substrate, whether it is a flat surface or a curved surface. Especially on curved glass substrates, if the bonding process of the explosion-proof film causes any defects, it will lead to the scrapping of the high-priced curved glass substrate. Therefore, the overall production yield of the curved glass substrate can be effectively improved by the method for producing an explosion-proof film of the present invention.

As can be seen from the above two different embodiments, the method of the present invention can effectively and easily realize the production of an explosion-proof film on a flat substrate or a curved substrate. The yield can be greatly improved and the process cost can be effectively reduced. More specifically, the method for manufacturing an explosion-proof film of the present invention can be applied to the production of an explosion-proof film of a curved substrate.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

Claims (9)

An explosion-proof film manufacturing method comprises: forming a colloidal film layer on a substrate; and hardening the colloidal film layer to form an explosion-proof film; wherein the surface of the explosion-proof film has a cause value greater than 36. The method of manufacturing an explosion-proof film according to claim 1, wherein the substrate is one selected from the group consisting of a planar substrate and a curved substrate. The method for producing an explosion-proof film according to claim 1 or 2, wherein the colloidal film layer is formed on the substrate by a spray coating method or an ink jet method. The method for producing an explosion-proof film according to claim 1 or 2, wherein the colloidal film layer is cured by one of the following methods: a photocuring method, a thermosetting method, and a photothermal curing method. The method for producing an explosion-proof film according to claim 1 or 2, wherein the material of the colloidal film layer is selected from the group consisting of a silicone-based rubber, an acrylic-based rubber, and a polyurethane-based rubber. The method of manufacturing an explosion-proof film according to claim 1 or 2, wherein the explosion-proof film has a thickness of between 5 and 500 micrometers (μm). A substrate with an explosion-proof membrane manufactured by the method of claim 1, comprising: a substrate; and an explosion-proof film formed on the substrate, having a thickness of between 5 and 500 micrometers (μm); wherein the explosion-proof membrane The surface cause value is greater than 36. The substrate with an explosion-proof film according to claim 7, wherein the substrate is selected from one of the following substrates: a planar substrate and a curved substrate. The substrate with an explosion-proof film according to claim 7 or 8, wherein the material of the explosion-proof film is selected from the following One: silicone rubber, acrylic based rubber, polyurethane (PU) based rubber.