TWI420198B - An explosion-proof module for a flat-panel display and a flat-panel display made with the explosion-proof module - Google Patents

Description

Explosion-proof module for flat panel display and flat panel display made of the explosion-proof module

The invention relates to an explosion-proof membrane and a flat panel display, in particular to an explosion-proof module of a flat-panel display and a flat-panel display made of the explosion-proof module.

Referring to FIG. 1 , a touch panel having an air gap includes a backlight module 11 , a flat display module 12 disposed on the backlight module 11 , and a touch module spaced apart from the flat display module 12 . The group 14 and an air spacer layer 131 defined by the touch module 14 and the flat display module 12 are defined. In actual use, the external light will be incident on the touch module 14, and a small part will become incident light (as indicated by the solid arrow in FIG. 1), and most of the light will be reflected by the interface reflection (see Figure 1). In the multi-layer structure, an interface reflection is formed in each of the interfaces, and the reflected light causes the user to see the screen because the reflection is not visible, so the touch module 14 is attached. The air spacer layer 131 produces a further reduced viewing.

Referring to FIG. 2, in order to improve the visibility, the air spacer layer 131 (see FIG. 1) is replaced by an adhesive 132 for attaching the touch module 14 to the flat display mode. Group 12 reduces the generation of interface reflections (shown by dashed arrows in Figure 2) to enhance viewing in high brightness environments. However, the adhesive 132 does not have an explosion-proof function. Therefore, when the flat display module 12 is broken, the glass fragments may scatter around and cut the user, so the flat display module 12 is potentially dangerous.

Referring to FIG. 3, in order to improve the above problem, an explosion-proof film 15 is disposed between the air gap layer 131 and the adhesive 132. By the arrangement of the explosion-proof membrane 15, it is possible to avoid the occurrence of scattering when the flat display module 12 is broken. However, in order to prevent the explosion-proof film 15 from causing deterioration in visibility in a high-brightness environment, it is necessary to perform an anti-reflection treatment on the joint surface of the explosion-proof film 15 and the air gap layer 131, which causes an increase in manufacturing cost.

Therefore, how to improve the above-mentioned shortcomings has been an important goal of continuous efforts by those skilled in the art.

Accordingly, it is an object of the present invention to provide an explosion-proof module for a flat panel display.

Another object of the present invention is to provide a flat panel display made of the explosion-proof module.

Therefore, the explosion-proof module of the flat panel display of the present invention comprises an explosion-proof film capable of passing visible light, and an adhesive unit disposed on the explosion-proof film.

The adhesive unit comprises a first adhesive layer and a second adhesive layer respectively disposed on opposite sides of the explosion-proof membrane.

The flat panel display made by the explosion-proof module comprises a flat display module, a backlight module, a touch module, and an explosion-proof module.

The backlight module is disposed on the flat display module and emits light to inject light into the flat display module.

The touch module is spaced from the flat display module.

The explosion-proof module includes an explosion-proof film that can pass visible light and is disposed between the flat display module and the touch module, and an adhesive unit disposed on the explosion-proof film, the adhesive unit having a plurality of adhesive units respectively disposed thereon The first adhesive layer is connected to the touch module, and the second adhesive layer is connected to the flat display module.

The utility model has the advantages that the design of the explosion-proof module can prevent the glass fragments from cutting the user's accident when the glass panel bursts. Moreover, the refractive index of the explosion-proof film and the adhesive unit are matched with each other, thereby reducing the interface reflectance to improve the visibility in a high-brightness environment.

The above and other technical features, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 4, a preferred embodiment of the explosion-proof module 2 of the flat panel display of the present invention comprises an explosion-proof membrane 21 capable of passing visible light, and an adhesive unit 22 disposed on the explosion-proof membrane 21.

Specifically, in the preferred embodiment, the material of the explosion-proof membrane 21 is polymethyl methacrylate (PMMA), and of course, cellulose triacetate (TAC) and polyester (PET) may also be used. Polypropylene (PP), polyhydrocarbyl (COP), or a combination of the materials described above, is not limited to what is disclosed in the preferred embodiment. In addition, it is particularly noted that when the thickness of the explosion-proof membrane 21 is less than 20 μm, the difficulty and cost of manufacture are increased; if the thickness is greater than 1000 μm, the light is not easily penetrated and the visibility is lowered, so the preferred embodiment is implemented. In the example, the explosion-proof film 21 has a thickness of between 20 μm and 1000 μm.

The adhesive layer 22 includes a first adhesive layer 221 and a second adhesive layer 222 respectively disposed on opposite sides of the explosion-proof film 21. The first adhesive layer 221 and the second adhesive layer 222 can also pass visible light. In the preferred embodiment, the first adhesive layer 221 is an adhesive made of a methacrylic monomer, and the second adhesive layer 222 is also an adhesive made of a methacrylic monomer. The first adhesive layer 221 and the second adhesive layer 222 can also be made of a crosslinkable functional group ethylene monomer, a crosslinkable functional group acrylic monomer, or a combination of the materials, and should not be preferred. The content disclosed in the embodiments is limited. In particular, when the dry film thickness of the first adhesive layer 221 and the second adhesive layer 222 is less than 10 μm, the bonding effect may be poor due to being too thin, and when the first adhesive layer 221 and the second adhesive are When the dry film thickness of the layer 222 is more than 100 μm, the light transmittance is lowered because it is too thick. Therefore, in the preferred embodiment, the first adhesive layer 221 has a dry film thickness of between 10 μm and 100 μm. The second film layer 222 has a dry film thickness of between 10 μm and 100 μm.

The explosion-proof module 2 of the flat-panel display of the present invention has the advantages that the ratio of the refractive index of the first adhesive layer 21 and the second adhesive layer 222 can reduce the proportion of interface reflection when the light passes. Increase the proportion of light passing through.

Referring to FIG. 5, a first preferred embodiment of the flat panel display made by the explosion-proof module 2 of the present invention includes a flat display module 3, a backlight module 4, a touch module 5, and a Explosion-proof module 2. It is worth mentioning that, because the detailed structure of the flat display module 3, the backlight module 4, and the touch module 5 is well known to those of ordinary skill in the art, and is not the main technical feature of the present case, Give a brief description.

The backlight module 4 is disposed on the flat display module 3 and emits light to inject light into the flat display module 3.

The touch module 5 is spaced apart from the flat display module 3.

The explosion-proof module 2 includes an explosion-proof membrane 21 that can pass visible light and is disposed between the planar display module 3 and the touch module 5, and an adhesive unit 22 disposed on the explosion-proof membrane 21. The adhesive unit 22 has a first adhesive layer 221 and a second adhesive layer 222 respectively disposed on opposite sides of the explosion-proof membrane 21. The first adhesive layer 221 is connected to the touch module 5 , and the second adhesive layer 222 is connected to the flat display module 3 .

The preferred embodiment is disclosed as a touch screen. Since the touch module 5 is added, the transmittance of light is reduced. The explosion-proof film 21 and the first adhesive layer 221 and the second adhesive layer are formed. The refractive index of 222 is matched to reduce the proportion of interface reflection when light passes through to increase the proportion of light passing through. With the design of the explosion-proof module 2, it is possible to prevent the glass panel (the flat display module 3) from bursting and causing accidents such as a user being cut.

Table 1 below is a comparison table of the total reflectance of the touch panel of the first preferred embodiment of the flat panel display made by the explosion-proof module 2 and the three touch panels of the prior art.

In particular, although the total reflectance of the touch screen disclosed in FIG. 2 and the preferred embodiment (see FIG. 5) is the lowest, the aspect disclosed in FIG. 2 lacks an explosion-proof function. Therefore, in contrast, the first preferred embodiment of the flat panel display made by the explosion-proof module 2 of the present invention not only has an explosion-proof function, but also has the lowest total reflectance.

Referring to FIG. 6, a second preferred embodiment of the flat panel display made by the explosion-proof module 2 of the present invention is substantially similar to the flat-panel display made by the explosion-proof module 2 of the present invention. The first preferred embodiment is different in that, in the preferred embodiment, the touch panel 5 is replaced by a cover board 6 (see FIG. 5).

The preferred embodiment of the present invention discloses a conventional flat panel display. By matching the refractive index of the first adhesive layer 21 and the second adhesive layer 222, the ratio of the interface reflection can be reduced. To increase the proportion of light passing through. With the design of the explosion-proof module 2, it is possible to prevent the glass panel (the flat display module 3) from bursting and causing accidents such as a user being cut.

With the above design, the explosion-proof module 2 of the flat-panel display of the present invention and the flat-panel display made of the explosion-proof module 2 have the following advantages in practical use:

(1) The assembly process is simple:

The second adhesive layer 222 can be directly attached to the flat display module 3 by using the second adhesive layer 222, and the touch module 5 can be attached to the touch module 5 by using the first adhesive layer 221. On the explosion-proof membrane 21. In this way, the assembly can be completed to improve the disadvantages of the prior art (see Figs. 1, 3).

(2) Explosion protection:

Although the explosion-proof film 21 cannot prevent the glass substrate from being broken, it is possible to prevent the glass substrate from scattering or scattering when it is broken. Therefore, by the provision of the explosion-proof membrane 21, it is possible to prevent the glass from scattering when the glass panel is inadvertently burst, thereby causing an accident such as a cut by the user.

(3) Good visibility:

By matching the refractive index of the first explosion-proof film 21 with the first adhesive layer 221 and the second adhesive layer 222, the ratio of the interface reflection when the light passes through can be reduced to increase the proportion of light passing through.

In summary, the explosion-proof module 2 of the flat-panel display of the present invention and the flat-panel display made of the explosion-proof module 2 can prevent the glass chip from being cut by the user when the glass panel bursts by the design of the explosion-proof module 2 The accident. Further, the refractive index of the explosion-proof film 21 and the adhesive unit 22 are matched with each other, and the interface reflectance can be lowered to improve the visibility in a high-brightness environment, so that the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

2. . . Explosion-proof module

twenty one. . . Explosion-proof membrane

twenty two. . . Adhesive unit

221. . . First glue layer

222. . . Second glue layer

3. . . Flat display module

4. . . Backlight module

5. . . Touch module

6. . . Cover plate

1 is a schematic view showing a conventional touch panel having an air spacer layer;

2 is a schematic view showing a conventional touch panel having an adhesive;

3 is a schematic view showing a conventional touch panel having an air spacer layer and an adhesive;

Figure 4 is a schematic view showing a first preferred embodiment of the explosion-proof module of the flat panel display of the present invention;

Figure 5 is a schematic view showing a first preferred embodiment of the flat panel display made by the explosion-proof module of the present invention;

Figure 6 is a schematic view showing a second preferred embodiment of the flat panel display made by the explosion-proof module of the present invention.

2. . . Explosion-proof module

twenty one. . . Explosion-proof membrane

twenty two. . . Adhesive unit

221. . . First glue layer

222. . . Second glue layer

3. . . Flat display module

4. . . Backlight module

5. . . Touch module

Claims (7)

An explosion-proof module for a flat panel display, comprising: an explosion-proof film capable of passing visible light; and an adhesive unit comprising a first adhesive layer and a second adhesive layer respectively disposed on opposite sides of the explosion-proof membrane, wherein the first One of the adhesive layers has a dry film thickness of 10 μm to 100 μm, and one of the second adhesive layers has a dry film thickness of 10 μm to 100 μm, and a refractive index of the explosion-proof film, a refractive index of the first adhesive layer, and the second The matching of the refractive index of one of the adhesive layers can reduce a proportion of the interface reflection generated when the visible light passes through the explosion-proof module to increase the ratio of the visible light passage. The explosion-proof module of the flat panel display according to claim 1, wherein the material of the explosion-proof membrane is selected from the group consisting of cellulose triacetate, polyester, polymethyl methacrylate, polypropylene, polyhydrocarbyl, or One of these combinations. The explosion-proof module of the flat panel display according to claim 2, wherein the first adhesive layer of the adhesive unit is made of a vinyl monomer selected from a methacrylic acid monomer and a crosslinkable functional group. A co-functional acrylic monomer, or a combination of these. The explosion-proof module of the flat panel display according to the third aspect of the invention, wherein the second adhesive layer of the adhesive unit is made of a vinyl monomer selected from a methacrylic acid monomer and a crosslinkable functional group. A co-functional acrylic monomer, or a combination of these. According to the explosion-proof module of the flat panel display described in claim 4 of the patent application scope, Wherein, the explosion-proof film has a thickness of 20 μm to 1000 μm. A flat panel display made by the explosion-proof module according to any one of claims 1 to 5, comprising: a flat display module; a backlight module disposed on the flat display module and capable of Generating a light to cause the light to enter the planar display module; a touch module disposed at an interval from the planar display module; and an explosion-proof module including a light-emitting module capable of passing the light and being disposed on the planar display mode An explosion-proof film between the group and the touch module, and an adhesive unit disposed on the explosion-proof film, the adhesive unit having a first adhesive layer and a second adhesive layer respectively disposed on opposite sides of the explosion-proof film, The first adhesive layer is connected to the touch module, and the second adhesive layer is connected to the flat display module, wherein the first adhesive layer has a dry film thickness of 10 μm to 100 μm, and the second adhesive One of the layers has a dry film thickness of 10 μm to 100 μm, and the light is passed through the explosion-proof mode by a refractive index of one of the explosion-proof films, a refractive index of one of the first adhesive layers, and a refractive index of one of the second adhesive layers. Generate a proportion of interface reflections when grouping Light passes through the proportion of one. A flat panel display made by the explosion-proof module according to any one of claims 1 to 5, comprising: a flat display module; a backlight module disposed on the flat display module and capable of Emitting a light to cause the light to enter the flat display module; a cover plate disposed at an interval from the flat display module; and an explosion-proof module including an explosion-proof film capable of passing the light and disposed between the flat display module and the cover plate, and an explosion-proof film disposed on the cover plate An adhesive unit on the film, the adhesive unit has a first adhesive layer and a second adhesive layer respectively disposed on opposite sides of the explosion-proof membrane, the first adhesive layer is connected to the cover plate, and the second adhesive layer is Connected to the flat display module, wherein a dry film thickness of the first adhesive layer is 10 μm to 100 μm, and a dry film thickness of the second adhesive layer is 10 μm to 100 μm, and a refractive index of the explosion-proof film is The combination of the refractive index of one of the first adhesive layers and the refractive index of one of the second adhesive layers reduces a proportion of the interface reflection when the light passes through the explosion-proof module to increase the proportion of the light passing through.