Semi-reflecting and semi-transmitting glass and preparation method thereof

A semi-reflective, semi-transparent, glass technology, applied in chemical instruments and methods, glass/slag layered products, lamination devices, etc., can solve problems that affect product appearance and customer acceptance, bubbles, easy scratches, etc.

Active Publication Date: 2015-04-22
YICHANG NANBO DISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, if the film sticks for a long time, it will cause air bubbles and peeling off, which will affect the effect of the transflective film. On the other hand, the hardness of the traditional transflective film is not high enough, and it is easy to scratch during use, which will affect the appearance of the product.
[0005] Although some traditional semi-reflective and semi-transparent optical films are coated on glass, they are all made of TiO 2 or Nb 2 o 5 As a high refractive index material, SiO 2 As a low refractive index material, due to TiO 2 After bonding with OCA, dark spots will appear under UV light irradiation. Although the dark spots gradually fade with time, they will reappear after UV irradiation, affecting the visual effect of the product.
And Nb 2 o 5 If it is dissolved in lye, if it is cleaned with lye and ultrasonicated with lye in the subsequent processing steps, some Nb will appear 2 o 5 Layer dissolution phenomenon, destroying the optical film layer, thereby destroying the optical effect of the transflective and semi-transparent optical film; at the same time, Nb 2 o 5 and SiO 2 The Vickers hardness is only 560Hv and 640Hv. If all these two materials are used, the semi-reflective and semi-transparent optical film generated will be easily scratched during subsequent processing and end-customer use, which will affect the appearance of the product and customer acceptance.

Method used

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  • Semi-reflecting and semi-transmitting glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0057] The preparation method of above-mentioned transflective and translucent glass, comprises the steps:

[0058] S10 , providing a glass substrate 10 .

[0059] The glass substrate 10 can be selected from float glass or other conventional glass in the field.

[0060] Preferably, the thickness of the glass substrate 10 is 0.3-3.0 mm, more preferably 0.55-1.1 mm.

[0061] Preferably, the refractive index of the glass substrate 10 is 1.52.

[0062] Preferably, the glass substrate 10 is cleaned and dried first.

[0063] S20, deposit the first low refractive index layer 20, the first high refractive index layer 30, the second low refractive index layer 40, the second high refractive index layer 50, the third The low-refractive-index layer 60, the third high-refractive-index layer 70, and the fourth high-hardness refractive-index layer 80 form a semi-reflective and semi-transparent glass.

[0064] The material of the first low refractive index layer 20 is SiO 2 . SiO 2 The...

Embodiment 1

[0089] The structure of the semi-reflective and semi-transparent glass of embodiment 1 is a glass substrate Wherein, " / " represents a stacked structure, and the values ​​in brackets represent thicknesses, which are the same in the following embodiments.

[0090] The material of the glass substrate in Example 1 is soda lime glass with a thickness of 0.7 mm.

[0091] The semi-reflective and semi-transparent glass of Example 1 is tested for light with a wavelength range of 380-780 nm by using Nippon Denshoku SD-6000, and the reflectance at 550 nm is 20%.

[0092] The hardness of the semi-reflective and semi-transparent optical film layer was tested with a pencil hardness tester, and the hardness was 7H.

[0093] Take a certain amount of semi-reflective and semi-transparent optical film glass with a reflectivity of 20%, soak it in NaOH solution with a concentration of 10wt% and a temperature of 40°C for 2H. After testing the spectrum of the sample after immersion, compared wi...

Embodiment 2

[0097] The structure of the semi-reflective and semi-transparent glass of embodiment 2 is a glass substrate

[0098] The material of the glass substrate in Example 2 is soda lime glass with a thickness of 1.1 mm.

[0099] The semi-reflective and semi-transparent glass of Example 2 was tested for light with a wavelength range of 380-780 nm by using Nippon Denshoku SD-6000, and the test result showed that the reflectance at 550 nm was 30%. The hardness of the semi-reflective and semi-transparent optical film layer was tested with a pencil hardness tester, and the hardness was 7H.

[0100] Take a certain amount of semi-reflective and semi-transparent optical film glass with a reflectivity of 30%, soak it in NaOH solution with a concentration of 10wt% and a temperature of 40°C for 2H. After testing the spectrum of the sample after immersion, compared with the spectrum before immersion, the coincidence is very good; the adhesion is still 5B after testing 100 grids.

[0101] T...

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Abstract

The invention discloses semi-reflecting and semi-transmitting glass with the advantages of high hardness, acid and alkali corrosion resistance, alkali liquor ultrasound resistance, scratch resistance and high post-procedure machinability. The reflectivity of the semi-reflecting and semi-transmitting glass refers to any reflectivity in a range from 18 percent to 75 percent. The semi-reflecting and semi-transmitting glass comprises a glass substrate, a first low-refractive index layer, a first high-refractive index layer, a second low-refractive index layer, a second high-refractive index layer, a third low-refractive index layer, a third high-refractive index layer and a fourth high-hardness refractive index layer which are sequentially laminated with one another, wherein the first low-refractive index layer is made of SiO2; the first high-refractive index layer is made of Nb2O5; the second low-refractive index layer is made of SiO2; the second high-refractive index layer is made of Nb2O5; and the third low-refractive index layer is made of SiO2. The hardness of the semi-reflecting and semi-transmitting glass can be 7H, and the semi-reflecting and semi-transmitting glass has the advantages of acid and alkali corrosion resistance, alkali liquor ultrasound resistance, scratch resistance and high post-procedure machinability. The invention also discloses a method for preparing the semi-reflecting and semi-transmitting glass.

Description

technical field [0001] The invention relates to a semi-reflective and semi-permeable glass with high hardness, acid and alkali corrosion resistance, alkali liquid ultrasonic resistance, scratch resistance and strong processability in subsequent processes and a preparation method thereof. Background technique [0002] Existing smart touch electronic products such as tablet computers and touch-screen mobile phones often need to be pasted with a semi-reflective and semi-transparent optical film on the surface to achieve semi-reflective and semi-transparent optical performance, which can play a mirror reflection when the smart touch product is in standby Effect, can be used as a mirror to organize makeup, or comb hair. There is also a semi-reflective and semi-transparent optical film on the back cover glass, so that the front cover can display and touch normally, and the back cover has a certain degree of specular reflection. [0003] There are also some cars that use semi-refl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/06
CPCB32B17/06B32B37/10B32B2037/1081
Inventor 刘玉华方凤军何建军杜晓峰边彬
Owner YICHANG NANBO DISPLAY
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