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Anti-reflection film, its preparation method and anti-reflection glass
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A technology of anti-reflection film and refractive index adjustment layer, which is applied in the field of anti-reflection film and anti-reflection glass, and can solve problems such as easy scratches, affecting product appearance, and poor insulation performance
Active Publication Date: 2017-07-04
YICHANG NANBO DISPLAY
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Problems solved by technology
[0004] However, the surface hardness of the existing anti-reflection film is not high enough, and it is easy to scratch during use, thereby affecting the appearance of the product; at the same time, the insulation resistance of the existing anti-reflection film is below 1GΩ, and the insulation performance is not good
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[0044] The preparation method of the above-mentioned anti-reflection film 100 includes the following steps:
[0045] S10, providing a substrate.
[0046] It should be noted that the substrate may be a glass substrate, a silicon wafer, or a PET film, depending on the situation in which the anti-reflection film 100 is used.
[0047] Preferably, the substrate is first cleaned and dried.
[0048]S20 , sequentially depositing the first refractive index adjustment layer 20 , the second refractive index adjustment layer 30 , the third refractive index adjustment layer 40 , the fourth refractive index adjustment layer 50 and the fifth refractive index adjustment layer 60 on the surface of the substrate.
[0049] The material of the first refractive index adjustment layer 20 is silicon nitride (Si 3 N 4 ). Si 3 N 4 The refractive index of 1.7 ~ 1.8. Using Si 3 N 4 As the material of the first refractive index adjustment layer 20 , the transmittance of the first refractive inde...
Embodiment 1
[0088] The structure of the anti-reflection film of embodiment 1 is Si 3 N 4 (11nm) / SiO 2 (10nm) / SiN(5nm) / SiO 2 (105nm) / SiN(5nm). Wherein, " / " represents a stacked structure, and the values in brackets represent thicknesses, which are the same in the following embodiments.
[0089] The anti-reflection film of Example 1 was subjected to a hardness test using a Mitsubishi pencil, and the result was 8H.
[0090]The anti-reflection film of Example 1 was tested for light with a wavelength range of 380-780 nm by using a spectroscopic testing instrument, and the single-sided reflectance at 550 nm was 1.4%.
Embodiment 2
[0092] The structure of the anti-reflection film of embodiment 2 is Si 3 N 4 (10nm) / SiO 2 (5nm) / SiN(10nm) / SiO 2 (102nm) / SiN(8nm).
[0093] The anti-reflection film of Example 2 was subjected to a hardness test using a Mitsubishi pencil, and the result was 8H.
[0094] The anti-reflection film of Example 2 is tested for light with a wavelength range of 380-780 nm by using a spectroscopic testing instrument, and the single-sided reflectance at 550 nm is 1.2%.
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Abstract
The invention discloses an antireflection film and a preparation method thereof as well as antireflection glass. The antireflection film comprises a first refractive index adjusting layer, a second refractive index adjusting layer, a third refractive index adjusting layer, a fourth refractive index adjusting layer and a fifth refractive index adjusting layer, which are sequentially superposed; the material of the first refractive index adjusting layer is Si3N4; the material of the second refractive index adjusting layer is SiO2; the material of the third refractive index adjusting layer is SiN; the material of the fourth refractive index adjusting layer is SiO2; and the material of the fifth refractive index adjusting layer is SiN. The antireflection film is relatively high in hardness and good in insulating property.
Description
technical field [0001] The invention relates to an anti-reflection film, its preparation method and anti-reflection glass. Background technique [0002] With the popularity of smart touch mobile phones and tablets, more and more people develop the habit of using touch electronic products, which have cover glass above the screen. However, because glass has the function of reflecting light, when the outdoor sunlight or indoor strong light is stronger than the transmitted light of the LCD backlight, there will be about 4.2% of the reflected light on each surface of the glass reflected into the human eye, resulting in the eyes being unable to see the screen clearly The content displayed on the website will affect the use of the product. [0003] In the existing anti-reflection glass, an anti-reflection film is prepared on one or both sides of the glass substrate, so that under outdoor sunlight or indoor strong light, the light reflectivity is low, creating a clear and transpare...
Claims
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