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Preparation method of transmission increasing and reflection reducing glass

An anti-reflection glass and anti-transmission technology, which is applied in the field of glass coating, can solve the problems of complex production process conditions, high process precision requirements, and affecting the weather resistance of the film layer, so as to facilitate continuous large-scale production, enhance light transmittance, low cost effect

Inactive Publication Date: 2018-01-19
萍乡星弛光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the anti-reflection method of glass is mainly to coat a layer of anti-reflection film and increase the porosity inside the film layer to improve the effect of anti-reflection. However, while the anti-reflection film brings higher light transmittance, the porosity will inevitably increase. Affects the weather resistance of the film layer. The coating solution used in the anti-reflection film uses a silane coupling agent to simply bond the silicon dioxide atoms together to form a film layer with internal pores. However, due to the silane coupling agent used It cannot effectively prevent external substances (such as water vapor, impurities, dust) from invading the inside of the glass, so its durability is relatively poor; The process conditions are relatively complicated, time-consuming, and the required equipment is expensive, resulting in high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for anti-reflection and anti-reflection glass is provided, comprising the following steps:

[0025] a) The glass substrate is ultrasonically cleaned with ethanol and deionized water in sequence, and then dried at 60°C for later use;

[0026] b) Put the glass substrate into an acidic solution for pickling, the acidic solution is 35% H by mass percentage 2 SiF 6 , 45% glycerol and 20% boric acid;

[0027] c) Ultrasonic cleaning the glass substrate with deionized water, and then drying at 60°C;

[0028] d) uniformly coating titanium dioxide sol on the surface of the glass substrate, and then curing at 700°C to form a titanium dioxide anti-transmission coating layer with a low refractive index; the thickness of the titanium dioxide anti-transmission coating layer is 110nm, and the refractive index is 1.42;

[0029] e) Titanium dioxide, niobium oxide, zirconia, tin oxide and zinc oxide are made into a mixed solution according to the mass ratio of 1:0....

Embodiment 2

[0031] A preparation method for anti-reflection and anti-reflection glass is provided, comprising the following steps:

[0032] a) The glass substrate is ultrasonically cleaned with ethanol and deionized water in sequence, and then dried at 40°C for later use;

[0033] b) Put the glass substrate into an acidic solution for pickling, the acidic solution is 45% H by mass percentage 2 SiF 6 , 30% glycerol and 25% boric acid;

[0034] c) Ultrasonic cleaning the glass substrate with deionized water, and then drying at 40°C;

[0035] d) uniformly coating titanium dioxide sol on the surface of the glass substrate, and then curing at 750° C. to form a titanium dioxide anti-transmission coating layer with a low refractive index; the thickness of the titanium dioxide anti-transmission coating layer is 130 nm, and the refractive index is 1.51;

[0036] e) Titanium dioxide, niobium oxide, zirconia, tin oxide and zinc oxide are made into a mixed solution according to the mass ratio of 5...

Embodiment 3

[0038] A preparation method for anti-reflection and anti-reflection glass is provided, comprising the following steps:

[0039] aa) The glass substrate is ultrasonically cleaned with ethanol and deionized water in sequence, and then dried at 50°C for later use;

[0040] b) Put the glass substrate into an acidic solution for pickling, the acidic solution is 60% H by mass percentage 2 SiF 6 , 35% glycerol and 5% boric acid;

[0041] c) Ultrasonic cleaning the glass substrate with deionized water, and then drying at 50°C;

[0042] d) uniformly coating titanium dioxide sol on the surface of the glass substrate, and then curing at a temperature of 800°C to form a titanium dioxide anti-transmission coating layer with a low refractive index; the thickness of the titanium dioxide anti-transmission coating layer is 150nm, and the refractive index is 1.55;

[0043] e) Titanium dioxide, niobium oxide, zirconia, tin oxide and zinc oxide are made into a mixed solution according to the m...

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Abstract

The invention relates to the technical field of glass coating, in particular to a preparation method of transmission increasing and reflection reducing glass. According to the process, a glass substrate is subjected to acid pickling firstly, oxide on the glass surface is removed by corrosion, and a silicon dioxide film layer is formed, so that reflection loss of light is reduced; then the glass isuniformly coated with titanium dioxide sol and cured, a titanium dioxide light-transmitting coating layer with low refractive index is formed, a tight porous structure is formed by the titanium dioxide light-transmitting coating layer with low refractive index and the glass substrate surface, and accordingly, the light transmittance is enhanced greatly and durability of the glass is guaranteed; amixed solution of titanium dioxide, niobium oxide, zirconium oxide, tin oxide and zinc oxide is sprayed finally, a reflection reducing film layer is formed by sintering, and by means of the reflection reducing film layer, reflection of visible light can be further reduced; the method is simple, continuous scale production is easy, and the cost is lower.

Description

technical field [0001] The invention relates to the technical field of glass coating, in particular to a preparation method of anti-transmission and anti-reflection glass. Background technique [0002] With the rapid development of touch screens for mobile phones and tablet computers, glass for touch screens is a type of glass product that is attached to the surface of the touch screen with beautification, decoration and protection functions, so that the touch screen has high-definition visual effects. Because ordinary glass itself has a certain amount of reflected light, and the transmitted light source is not uniform enough, and the light transmittance is not enough, which affects the image clarity. According to the theory of thin film optics, the way to reduce the reflected light of glass is to coat a layer of dielectric film with a lower refractive index on the glass surface. If a certain porosity is formed on the low refractive index film layer, the refractive index of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34
Inventor 周光惠夏永光彭军
Owner 萍乡星弛光电科技有限公司
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