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Film having low refractive index and method for producing the same, anti-reflection film and method for producing the same, coating liquid set for film having low refractive index, substrate having microparticle-laminated thin film, and method for pr

一种低折射率膜、制造方法的技术，应用在抗反射涂层、光学元件、涂层等方向，能够解决品质劣化、不耐热、热膨胀率小等问题

Active Publication Date: 2011-09-14
RESONAC CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0032] In particular, plastics are not heat-resistant and tend to swell or deform, and quality deterioration due to this property often becomes a problem
[0033] In addition, metal oxide thin films formed by vacuum evaporation or anti-reflection films formed by metal fluorine compounds have a very small thermal expansion coefficient compared with plastics, so it is easy to cause thermal expansion and deformation of plastics as the base material. Cracks (cracks) of the anti-reflection film caused by it may occur in the temperature that can be encountered in daily life, such as places exposed to direct sunlight, cars or bathrooms, etc.

Method used

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  • Film having low refractive index and method for producing the same, anti-reflection film and method for producing the same, coating liquid set for film having low refractive index, substrate having microparticle-laminated thin film, and method for pr
  • Film having low refractive index and method for producing the same, anti-reflection film and method for producing the same, coating liquid set for film having low refractive index, substrate having microparticle-laminated thin film, and method for pr
  • Film having low refractive index and method for producing the same, anti-reflection film and method for producing the same, coating liquid set for film having low refractive index, substrate having microparticle-laminated thin film, and method for pr

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0489] 1. Formation of microparticle laminated film

[0490] An aqueous dispersion of silica (manufactured by Nissan Chemical Industries, Ltd., trade name: SNOWTEX (ST) OUP, silica sol) in which bead-shaped silica fine particles having an average primary particle diameter of 8 nm measured by the BET method was dispersed in Without adjusting the pH, the concentration was adjusted to 1% by mass, and the resulting solution was used as a fine particle dispersion; An aqueous solution with a pH of 10 was used as an aqueous electrolyte polymer solution.

[0491] The following steps are carried out in sequence: Step (a), which is a silicon wafer (manufactured by SUMCO Corporation, 6PW-A1, 6 inches Φ, 625 μm thick) as a solid substrate, a glass substrate (manufactured by Matsunami Glass Co., Ltd., trade name: S1111 , 25mm × 75mm × 0.7mm thick, the refractive index at a wavelength of 550nm is 1.54), and a polystyrene plate (manufactured by Hikari, transparent, 1mm thick) irradiated wit...

Embodiment 2

[0505] First, according to the procedure of Example 1, a microparticle-laminated film was fabricated.

[0506] Next, 50 g of diphenyldimethoxysilane (alkoxysilane (I), manufactured by Shin-Etsu Chemical Co., Ltd., KBM202SS) was put into a 300 ml three-necked round-bottomed flask, 81 g of MeOH was added, and the solution was stirred at 25° C. to make the solution uniform. After adding 2.7 mass% H 3 PO 4 12.1 g of the aqueous solution was stirred at 25° C. for 4 hours to obtain a 35% solution (stock solution) with a silane concentration; The steps produce a low-refractive-index film.

[0507] The low refractive index film evaluated in the same manner as in Example 1 had a refractive index of 1.3 and a thickness of 110 nm, and the haze of the low refractive index film evaluated in the same manner as in Example 1 was 0.3%. When the transmission spectrum of the glass substrate on which the low-refractive-index film was formed was measured similarly to Example 1, the maximum tran...

Embodiment 3

[0510] First, according to the procedure of Example 1, a microparticle-laminated film was produced.

[0511] Next, 50 g of hexyltriethoxysilane (alkoxysilane (I), manufactured by Shin-Etsu Chemical Co., Ltd., KBE3063) was put into a 300 ml three-necked round-bottomed flask, and 42 g of MeOH was added thereto. After stirring at 25° C. to make the solution uniform, add 0.05% by mass H 3 PO 4 7.4 g of the aqueous solution was stirred at 25° C. for 72 hours to obtain a solution (stock solution) with a silane concentration of 50%; The steps of making a low refractive index film.

[0512] The low refractive index film evaluated in the same manner as in Example 1 had a refractive index of 1.3 and a thickness of 110 nm, and the haze of the low refractive index film evaluated in the same manner as in Example 1 was 0.3%. When the transmission spectrum of the glass substrate on which the low-refractive-index film was formed was measured similarly to Example 1, the maximum transmittanc...

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Abstract

Provided is a film having a low refractive index, which can be formed under normal temperature and pressure while obtaining a lower refractive index, has excellent adhesion with a solid substrate, and does not lose geometric optical properties, such as the diffusibility or light-harvesting capability attributed to the microstructure. Also disclosed is a method for producing the same. The film having a low refractive index is obtained by causing an electrolyte polymer and microparticles to be alternately adsorbed on the surface of a solid substrate and bringing the resulting microparticle-laminated film into contact with a silicon compound solution in order to bond the solid substrate with microparticles and microparticles with microparticles. The silicon compound solution is selected from (1) the hydrolysis product of alkoxysilane (I) wherein the functional groups are formed from hydrolyzable groups and non-hydrolyzable organic groups, and the condensation reaction product thereof, (2) the hydrolysis product of a mixture of alkoxysilane (I) and alkoxysilane (II) wherein the functional groups are formed from hydrolyzable groups alone, and the condensation reaction product thereof; and (3) a mixture of hydrolysis product and condensation product thereof according to (1) and alkoxysilane (II).

Description

technical field [0001] The present invention relates to a low-refractive-index film used in optical parts, etc., and a method for producing the same, a coating solution for the low-refractive-index film, an antireflection film containing the low-refractive-index film, and a method for producing the same, and a microparticle-laminated film. Substrate and manufacturing method thereof, and optical component. Background technique [0002] The low refractive index film is used as an anti-reflection film, reflective film, semi-transmissive and semi-reflective film, visible light reflective infrared transmissive film, infrared reflective visible light transmissive film, blue reflective film, green reflective or red reflective film, bright line cut filter (emission Line cutoff filter) and optical functional film contained in color correction film (color correction film) are formed on optical components. [0003] Not limited to optical parts with a flat surface, it is used in optica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/00B32B9/00C09D7/12C09D183/04G02B1/10C09D7/61
CPCC08K7/26B29D11/00865C09D5/006C08K3/22G02B1/118G02B5/0242G02B5/0294G02B2207/107G02B1/113G02B5/0268C09D7/1216C09D7/1266G02B5/0278G02B2207/109C09D7/61C09D7/67Y10T428/24893C09D7/40B32B9/00B32B27/00C09D183/04G02B1/10G02B1/115
Inventor 高根信明川村智巳西村正人
Owner RESONAC CORPORATION
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