TWI389797B - With anti-glare and self-repair of the surface substrate - Google Patents

Description

Anti-glare and self-healing surface substrate

The present invention relates to a surface substrate having anti-glare properties and self-healing properties, for example, when used in front of a liquid crystal display or the like attached to a mobile phone.

Conventionally, as a surface material of a screen such as a liquid crystal display for protecting a mobile phone, a glass plate or a resin plate having a hard coating layer formed on its surface is most common.

In addition, a transparent film is also used, thereby preventing the screen of the liquid crystal display from being directly contaminated or damaged.

Such a film is coated with a pressure-sensitive adhesive, and the user can attach and detach it according to the need for replacement of the film itself.

However, such a resin plate and film have two problems.

One of them is that it has a function as a damage preventing material, but its damage cannot be repaired. Therefore, once the damage occurs frequently, the transparency of the resin sheet and the film itself is impaired, and the liquid crystal display panel is not easily observed. The picture needs to be replaced with a new film.

On the other hand, the transparent resin plate and film do not have anti-glare property, and the reflection of the vision is caused by a predetermined angle, and the liquid crystal display is not easily viewed.

In order to eliminate such problems, a surface substrate having anti-glare properties and self-healing properties has been proposed.

That is, for example, damage on the film can be automatically repaired, and Anti-glare surface material.

As such a technique, for example, the following documents can be cited.

(Patent Document 1) Japanese Laid-Open Patent Publication No. 2007-207091 (Patent Document 2) Japanese Patent Laid-Open No. 2003-296008

The surface substrate having anti-glare property and self-healing property described in Patent Document 1 is provided with a self-healing soft resin layer on a substrate made of a resin film, and an anti-glare layer is provided thereon. A surface material for a pen input device, wherein the thickness of the soft resin layer is 5 to 100 μm and the thickness of the antiglare layer is 0.2 to 10 μm, and a curable composition for forming a soft resin layer is applied on a glass plate. A cured coating film having a thickness of 300 μm formed by hardening and a cured coating film for forming a curable composition for an antiglare layer formed under the same conditions as those of the cured coating film, at 20 ° C, 50 by an ultra-micro hardness tester The ratio of the Martens hardness at the time of measurement in the environment of the relative humidity (the ratio of the cured coating film of the curable composition for forming an antiglare layer to the cured coating film for the curable composition for forming a soft resin layer) is 0.1~10, and the haze value is 0.5~40%.

This surface material has an advantage of including anti-glare property and excellent visibility, and is excellent in writing feeling when the pen is input, and is excellent in durability.

However, as described above, it is necessary to separately form a self-healing soft resin layer and an anti-glare layer provided on the soft resin layer on the substrate.

Therefore, as a two-layer structure, the number of manufacturing steps becomes large and thick. The degree is also increased, and in particular, there is a problem that the material must be selected in view of the compatibility of the antiglare layer and the soft resin layer.

The present invention has been developed in view of such problems, and an object thereof is to provide an anti-glare property and self-healing property (not damaged by a wire brush or the like) even in a simple structure that is easy to manufacture. Surface substrate.

Here, first, the self-healing property refers to a contact with a metal brush, a nail, a ball pen, or the like (for example, a liquid crystal screen used for a mobile phone) because it is soft, although it is on the surface substrate. The surface will once be sunken, but the depression will restore and return to its original nature.

Further, the term "anti-glare property" means that the surface is prevented from being easily seen by glare, and the characteristic of the visibility can be ensured.

Then, the term "substantially transparent" means, of course, complete transparency, but also includes the perceived transparency of the degree of unobstructedness.

In order to achieve the above object, a surface substrate having anti-glare property and self-healing property of the present invention provides a surface substrate having anti-glare property and self-healing property, which is characterized in that a substantially transparent synthetic resin film (1) The back surface (1A) has a substantially transparent epoxy resin layer (2), and the surface (1B) of the synthetic resin film (1) is provided with a self-healing soft resin layer (4) which is substantially transparent. , The anti-glare property is imparted by the unevenness (4C) in which a predetermined pattern is fixedly formed on the surface (4A) of the soft resin layer (4), whereby the single layer of the soft resin layer (4) has both anti-glare properties and Self-healing.

According to the surface substrate having anti-glare property and self-healing property of the present invention, even a layer of the soft resin layer 2 which is easily produced (coating in one step) can have anti-glare property and self-healing property (not Damaged by metal brushes, etc.). In this way, even a layer of the soft resin layer which is easy to manufacture (coating in one step) can be provided with anti-glare property and self-healing property (not damaged by a metal brush or the like), and can reduce the manufacturing cost and in the long-term. When used, there is no peeling between the two layers.

In addition, since it becomes a simple substance of a soft resin layer and a silicone resin layer (a function of abutting on an object) of the base material and each surface thereof, as a whole, for example, a thin object of about 130 μm can be formed, and since it is in use There is no increase in volume, so it is very versatile.

Moreover, since it is such a thin object, even if a small foreign matter such as dust adheres to the silicone resin layer, air does not easily enter.

On the other hand, when the conventional anti-glare property and self-healing property are comprised in two layers, and the anti-glare property is provided with two layers, it is cost. Further, although the directness of light caused by the two-layer structure is often hindered, it is not easy to see, but such a problem can be solved.

As described in the second aspect of the invention, it is preferable that the back surface 2A of the silicone resin layer 2 is provided with the protective film 3, and the surface 4A of the soft resin layer 4 is provided with a film-like spacer. 5, on the back surface 5A of the spacer 5, the unevenness 5B of the predetermined pattern is formed so that the unevenness 4C is fixedly formed on the front surface 4A of the soft resin layer 4, and the predetermined unevenness 5B is formed, and the soft resin layer 4 is formed. The single layer is provided with anti-glare properties and self-healing properties.

As described above, by the presence of the protective film 3, the silicone resin layer 2 is not adhered to other materials during transportation and during transportation, and may be peeled off when adhering to the object.

In the same manner, when the soft resin layer 4 is coated with the gasket 5 in advance, it is possible to protect the soft resin layer 4 from the middle of transportation and to avoid damage caused by contact with other materials. At the same time, since the unevenness 4C is formed on the surface 4A of the soft resin layer 4 by the unevenness 5B of the spacer 5, that is, it is also convenient to provide the anti-glare property, and it is easy to peel off during use. Pad 5 is sufficient.

Furthermore, as a form of the present invention, it is preferable that the soft resin layer 4 is composed of a uniform polymer of a urethane resin and a silicone resin.

Thereby, the soft resin layer 4 can exhibit excellent anti-glare property and self-healing property while using it as a single layer.

Moreover, it is preferable that the soft resin layer 4 is a mixture of a urethane-based resin and a silicone resin in a weight ratio of 50 to 90 to 50 to 10 by weight.

By the mixing ratio of such materials, the soft resin layer 4 can be self-healing and provided at low cost.

Furthermore, it is preferable that the soft resin layer 4 contains a thermosetting resin.

Thereby, the anti-glare property can be imparted even in a simple step of heating the surface of the soft resin layer 4 under a predetermined pressure by the spacer 5 to which the unevenness 5B is applied.

Moreover, it is preferable that the soft resin layer 4 contains a UV curable resin.

Thereby, the anti-glare property can be imparted even in a simple step of irradiating the surface of the soft resin layer 4 with UV rays under a predetermined pressure by the spacer 5 to which the unevenness 5B is applied.

(Example)

Hereinafter, preferred embodiments of the surface substrate having anti-glare property and self-healing property of the present invention will be described with reference to the drawings. Here, the structure of the product when the surface substrate is used as a target object (liquid crystal screen of a mobile phone) 10 is used.

Fig. 1 is a longitudinal sectional view showing a conceptual view of the surface substrate, and the thickness and the like are exaggeratedly drawn.

The surface substrate having anti-glare property and self-healing property is provided on the back surface 1A of the substantially transparent synthetic resin film 1, and has a substantially transparent silicone resin layer 2 on the back surface 2A of the silicone resin layer 2. The protective film 3 is provided, and the surface 1B of the synthetic resin film 1 has self In the soft resin layer 4 which is substantially transparent, the unevenness 4C is fixedly formed on the surface 4A of the soft resin layer 4 to impart anti-glare property, and the single layer of the soft resin layer 4 has both anti-glare property and self-healing property. Ground composition.

As the synthetic resin film 1 (polyethylene terephthalate film) described above, a thickness of 50 μm can be used.

Then, as the above-described silicone resin layer 2, a thickness of 50 μm was applied (rolled) under the synthetic resin film 1 here.

The soft resin layer 4 is composed of a thermosetting urethane resin and a uniform polymer of a silicone resin.

The soft resin layer 4 is obtained by mixing a urethane-based resin and a fluorinated resin in a weight ratio of 70 to 30 by weight, and chemically crosslinking the compound by a curing agent.

Here, the mixing ratio of the urethane-based resin and the epoxy resin is set to a weight ratio of 70 to 30, but the mixing ratio of the two is 50 to 90 by weight. The weight ratio is in the range of 50 to 10, and can be appropriately changed. Then, here, the thickness of the soft resin layer 4 is set to 30 μm.

Further, it is also possible to replace the urethane resin of the above thermosetting resin by replacing the existing UV curable resin.

Fig. 2 is an enlarged view showing a state in which the spacer 5 to be described later is partially peeled off.

Next, in the third drawing, the surface substrate having the anti-glare property and the self-healing property of the present invention is attached to the object to be used (the liquid crystal picture of the mobile phone) Before the face 10, that is, the state of implementation in the state of transportation and sale.

In other words, the back surface 1A of the substantially transparent synthetic resin film 1 is provided with a substantially transparent silicone resin layer 2, and the surface 1B of the synthetic resin film 1 is provided with a self-healing substantially transparent soft resin layer. (4) The anti-glare property is imparted to the surface 4A of the soft resin layer 4 by a predetermined pattern of irregularities 4C (a height difference of 2 to 10 μm), whereby the single layer of the soft resin layer 4 has an anti-glare property. It is configured to be self-healing, and has the following configuration.

First, the protective film 3 is provided on the back surface 2A of the silicone resin layer 2, and then a film-like spacer 5 is provided on the surface 4A of the soft resin layer 4, and the back surface 5A of the spacer 5 is used for The surface 4A of the soft resin layer 4 is formed with irregularities 4C in a fixed manner, and the unevenness 5B of a predetermined pattern is formed so as to impart anti-glare properties, and the single layer of the soft resin layer 4 is provided with anti-glare property and self-healing property.

As the protective film 3, a synthetic resin film which can be released from the above-mentioned silicone resin layer 2 is used. For example, PET is used here. Of course, if it is another material for demolding, a suitable synthetic resin film can be used.

As the above-mentioned spacer 5, a synthetic resin film which is free from mold release can be used. For example, PE is used here. In at least the back surface 5A of the liner 5, in this embodiment, the liner 5 itself is subjected to embossing by pressurization or heating in other processing steps (or sandblasting may also be applied, The etching process is performed, and a predetermined pattern is formed on the surface thereof, for example, the unevenness 5B of the pear skin pattern of the embodiment (the height difference is 1 μm to 10 μm).

Therefore, when the spacer 5 is mounted on the surface 4A of the soft resin layer 4 and pressurized to form a surface substrate, a lip coat pattern is formed on the surface 4A together with the hardening of the soft resin layer 4. When the unevenness 4C (a height difference of 1 μm to 10 μm) is used, when it is attached to the object 10 to be used, when the spacer 5 is peeled off, light can be scattered or interfered in the unevenness, and as a result, the soft resin layer 4 can be imparted. Anti-glare.

With such a configuration, the protective film 3 can be peeled off from the surface substrate of the above-described conveyance and sale process and attached to the object 10 to be used (the liquid crystal screen of the mobile phone), and the pad 5 is also attached. In the state in which the unevenness 4C (a height difference of 1 μm to 10 μm) of a predetermined pattern (pear pattern) is formed on the surface 4A of the soft resin layer 4, it is peeled off from the soft resin layer 4 and used.

(industrial availability)

The surface substrate of the present invention is provided with a function as a protective film for a liquid crystal screen of a mobile phone or a personal computer or an electronic device requiring another screen, and is provided with an anti-glare property and self by a simple single layer. The repairable structure can be applied to screens of various electronic devices that are fearful of surface damage.

1‧‧‧Synthetic resin film

1A‧‧‧Back of synthetic resin film

1B‧‧‧Surface of synthetic resin film

2‧‧‧Oxygenated resin layer

2A‧‧‧Back of the epoxy layer

3‧‧‧Protective film

4‧‧‧Soft resin layer

4A‧‧‧ Surface of soft resin layer

4C‧‧‧ bump

5‧‧‧ cushion

5A‧‧‧The back of the pad

5B‧‧‧ cushion bump

10‧‧‧Use object (LCD screen of mobile phone)

Fig. 1 is a longitudinal sectional side view showing the structure of the surface substrate of the present invention in a model.

Figure 2 is a diagram showing the main structure of the surface substrate of the present invention in a model. Part of the enlarged perspective.

Fig. 3 is a longitudinal sectional side view showing the state of use of the surface substrate of the present invention in a model.

1‧‧‧Synthetic resin film

2‧‧‧Oxygenated resin layer

2A‧‧‧Back of the epoxy layer

4‧‧‧Soft resin layer

4A‧‧‧ Surface of soft resin layer

4C‧‧‧ bump

5‧‧‧ cushion

5A‧‧‧The back of the pad

5B‧‧‧ cushion bump

10‧‧‧Use object (LCD screen of mobile phone)

Claims (2)

A surface substrate having anti-glare property and self-healing property, which is an anti-glare property and a self-healing surface substrate, and is characterized in that it is provided on the back surface (1A) of a substantially transparent synthetic resin film (1). The surface of the synthetic resin film (1) (1B) is provided with a substantially transparent soft resin layer (4) having a self-healing property, and the soft resin layer (4) The urethane resin and the epoxy resin are mixed at a weight ratio of 50 to 90 to 50 to 10 by weight, and a protective film is provided on the back surface (2A) of the silicone resin layer (2) ( 3) A film-like liner (5) is provided on the surface (4A) of the soft resin layer (4), and a back surface (5A) of the liner (5) is available in the soft resin layer (4). The surface (4A) imparts anti-glare property to form a predetermined pattern of irregularities (5B) having a height difference of 1 μm to 10 μm by carrying the spacer (5) on the surface (4A) of the soft resin layer (4). And applying pressure to fix the unevenness (4C) of a predetermined pattern having a height difference of 1 μm to 10 μm on the surface (4A) of the soft resin layer (4) to impart anti-glare property, thereby making the aforementioned Resinous layer (4) of both single-layer and antiglare self restorative configured. A surface substrate having an anti-glare property and a self-healing property according to the first aspect of the invention, wherein the soft resin layer (4) contains a thermosetting resin.