TWI391239B - Laminated glass and electronic device using the same for display window thereof - Google Patents

Description

Laminated glass and application of laminated glass as a window electronic device

The present invention relates to a laminated glass and an electronic device using the laminated glass as a window.

With the development of mobile communication technology, many electronic devices are competing to emerge, so that consumers can fully enjoy the convenience brought by mobile communication technology anytime and anywhere, and electronic devices are becoming more and more indispensable for the majority of users.

Electronic devices such as mobile phones, walkmans, handheld computers, etc. generally have display systems, and display systems generally include a window and a display device. The window mainly protects the display device and provides a better visual effect, and is mainly made of some transparent materials. When the display device is displayed, the light of the display device enters the user's field of view through the window, and the user sees the content displayed by the display device. Most of the windows of conventional electronic devices are transparent monochrome windows.

Conventional window lenses include glass lenses and plastic lenses such as PMMA (polymethyl methacrylate) lenses. The plastic lens has the advantages of light weight, impact resistance and non-breaking, but its surface hardness is not high, it is easy to scratch, and its optical characteristics are susceptible to environmental influence due to material properties.

Since the plastic lens has the above-mentioned shortcomings, and the glass lens has the advantages of good light transmission performance and scratch resistance, it is now more inclined to use the glass lens as the window lens. However, the glass lens is easily broken, and the broken pieces are easy to fly out and hurt people. Therefore, the industry is trying to make window lenses with laminated glass. The laminated glass is made of two or more pieces of glass original film, and is formed by heat-and-pressure bonding of a resin film. Due to the adhesion of the resin film, even if the laminated glass is broken, the fragments will not fly out and hurt people. However, today, the resin film used for the production of laminated glass is generally PVB (polyvinyl butyral), and PVB has poor light transmission properties, thus limiting the application of laminated glass in window lenses.

In view of this, it is necessary to provide a laminated glass that can improve optical characteristics and be safe to use.

In addition, it is necessary to provide an electronic device using the laminated glass as a window.

A laminated glass comprising a first glass layer, an intermediate film layer and a second glass layer, the intermediate film layer comprising a first surface and a second surface opposite the first surface, the first glass layer The second glass layer is disposed on the second surface, and the material of the intermediate film layer is acrylate.

An electronic device includes a window and a casing, the window being embedded in the casing, the window being a laminated glass, the laminated glass comprising a first glass layer, an intermediate film layer and a second a glass layer, the intermediate film layer includes a first surface and a second surface opposite to the first surface, the first glass layer is disposed on the first surface, and the second glass layer is disposed on the second surface The material of the intermediate film layer is acrylate.

Compared with the prior art, the main material of the window of the electronic device is still glass, and thus the window has the advantages of good light transmittance and high surface hardness of the glass. In addition, when the window is damaged, the fragments are still adhered to the intermediate film layer, and the damage of the debris to the human body can be avoided. Moreover, since the window uses acrylate as the intermediate film material, when the thickness of the intermediate film layer is less than 0.1 mm, the intermediate film layer has good light transmittance. Therefore, the window can be lifted without impairing its light transmission, thereby increasing the security of the window.

Referring to FIG. 1 , an electronic device 100 according to a preferred embodiment of the present invention includes a window 10 , a display device 20 , and a housing 30 . The window 10 is embedded in the housing 30, and the display device 20 is received in the housing 30 and abuts the window 10. The display device 20 emits light through the window 10 to the field of view of the user, thereby enabling the user to read the information displayed by the display device 20.

Referring to FIG. 2 , the window 10 is a laminated glass comprising a first glass layer 12 , an intermediate film layer 14 and a second glass layer 16 .

The intermediate film layer 14 includes a first surface 142 and a second surface 144 opposite to the first surface 142. The material of the intermediate film layer 14 is Acrylate. The thickness of the intermediate film layer 14 is such that the first glass layer 12 and the second glass layer 16 are sufficiently bonded together, and the thickness of the intermediate film layer 14 is preferably greater than 0.02 mm for this purpose. At the same time, as the thickness of the intermediate film layer 14 increases, the light transmission property of the intermediate film layer 14 decreases. Therefore, the thickness of the intermediate film layer 14 should also ensure that the intermediate film layer 14 has sufficient light transmittance. In this case, the thickness of the intermediate film layer 14 is preferably less than 0.1 mm. Therefore, the thickness of the intermediate film layer 14 is generally preferably 0.02 mm to 0.1 mm. The thickness of the intermediate film layer 14 in this embodiment is preferably 0.02 mm to 0.05 mm. In this way, not only the first glass layer 12 and the second glass layer 16 can be sufficiently bonded together, but also the window 10 can have good light transmittance.

The first glass layer 12 is disposed on the first surface 142 of the intermediate film layer 14, and the second glass layer 16 is disposed on the second surface 144 of the intermediate film layer 14. The material of the first glass layer 12 and the second glass layer 16 may be ordinary glass. The thickness of the first glass layer 12 and the second glass layer 16 may be any thickness as needed. In the present embodiment, the thickness of the first glass layer 12 and the second glass layer 16 are preferably 0.4 mm to 0.5 mm.

It can be understood that in order to increase the surface hardness of the first glass layer 12 and the second glass layer 16, the first glass layer 12 and the second glass layer 16 may be chemically strengthened. Generally, the first glass layer 12 and the second glass layer 16 are placed in a potassium salt solution, and sodium ions on the surfaces of the first glass layer 12 and the second glass layer 16 are replaced with potassium ions, so that the first glass layer 12 and the second layer A surface of the glass layer 16 is formed with a potassium ion permeable layer to increase the surface hardness of the first glass layer 12 and the second glass layer 16. The potassium salt solution can be potassium nitrate.

The main material of the window is still glass, so the window has the advantages of good light transmittance and high surface hardness.

In addition, when the window 10 is damaged, the debris adheres to the intermediate film layer 14, which can prevent the damage of the debris from being damaged by the human body. Moreover, since the window 10 uses acrylate as the material of the intermediate film layer 10, when the thickness of the intermediate film layer 14 is less than 0.1 mm, the light transmittance of the intermediate film layer 14 appears to be completely transparent. Therefore, the window 10 can be lifted before the light transmission property is impaired, thereby increasing the safety of the window 10.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

Windows. . . 10

Second glass layer. . . 16

The first glass layer. . . 12

Display device. . . 20

Intermediate film layer. . . 14

case. . . 30

The first surface. . . 142

Electronic device. . . 100

Second surface. . . 144

1 is a schematic structural view of a display system of an electronic device according to a preferred embodiment of the present invention; and FIG. 2 is a schematic structural view of a window according to a preferred embodiment of the present invention.

Windows. . . 10

The first glass layer. . . 12

Intermediate film layer. . . 14

The first surface. . . 142

Second surface. . . 144

Second glass layer. . . 16

Claims (16)

A laminated glass comprising: an intermediate film layer comprising a first surface and a second surface opposite to the first surface, the material of the intermediate film layer being acrylate; a first glass layer disposed on And the second glass layer is disposed on the second surface. The laminated glass according to claim 1, wherein the intermediate film layer has a thickness which is sufficient to sufficiently bond the first glass layer and the second glass layer together and can ensure the intermediate film. The layer is defined by the maximum thickness of the colorless transparency. The laminated glass according to claim 1, wherein the intermediate film layer has a thickness of 0.02 mm to 0.1 mm. The laminated glass according to claim 1, wherein the first glass layer has a thickness of 0.4 mm to 0.5 mm. The laminated glass according to claim 1, wherein the second glass layer has a thickness of 0.4 mm to 0.5 mm. The laminated glass according to claim 1, wherein the first glass layer is made of ordinary glass or tempered glass. The laminated glass according to claim 1, wherein the second glass layer is made of ordinary glass or tempered glass. The laminated glass according to claim 7, wherein the surface of the tempered glass is formed with a potassium ion permeable layer. An electronic device comprising: a casing and a window, the window being embedded in the casing, the window being a laminated glass, the laminated glass comprising: an intermediate film layer comprising a first surface and a second surface opposite to the first surface, the material of the intermediate film layer is acrylate; a first glass layer disposed on the first surface; and a second glass layer disposed on the second surface On the surface. The electronic device of claim 9, wherein the intermediate film layer has a thickness which is sufficient to sufficiently bond the first glass layer and the second glass layer together and can ensure the intermediate film The layer is defined by the maximum thickness of the colorless transparency. The electronic device of claim 9, wherein the intermediate film layer has a thickness of 0.02 mm to 0.1 mm. The electronic device of claim 9, wherein the first glass layer has a thickness of 0.4 mm to 0.5 mm. The electronic device of claim 9, wherein the second glass layer has a thickness of 0.4 mm to 0.5 mm. The laminated glass according to claim 9, wherein the first glass layer is made of ordinary glass or tempered glass. The electronic device of claim 9, wherein the second glass layer is made of ordinary glass or tempered glass. The electronic device of claim 15, wherein the surface of the tempered glass is formed with a potassium ion permeable layer.