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Black film, substrate provided with black film, image display device, black resin composition, and black material dispersion liquid

A technology of black resin and black film, applied in the field of black film, can solve the problems of complicated manufacturing process of black matrix and reduced adhesion between black matrix and substrate, etc.

Active Publication Date: 2013-04-24
SUMITOMO OSAKA CEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, this document discloses a method of temporarily forming a film in advance without using a liquid state in order to improve stability, but the manufacturing process of the black matrix is ​​complicated, and there is also a problem that the adhesion between the black matrix and the substrate is reduced.

Method used

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  • Black film, substrate provided with black film, image display device, black resin composition, and black material dispersion liquid
  • Black film, substrate provided with black film, image display device, black resin composition, and black material dispersion liquid
  • Black film, substrate provided with black film, image display device, black resin composition, and black material dispersion liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0360] Hereinafter, the present invention will be specifically explained through examples, but the present invention is not limited by these examples at all.

[0361]

[0362] (Each measurement and evaluation method)

[0363] Hereinafter, each measurement or evaluation method used in the examples or comparative examples, such as the characteristics of materials and sheets, is shown.

[0364] The content of silver in the black material

[0365] The content of silver in the black material (silver-tin alloy particles or mixed particles of the silver-tin alloy particles and silver particles) is determined by the following method: using an electron beam microanalyzer (EPMA: JXA8800, manufactured by JEOL) The pressed powder of the black material powder is analyzed, and a wavelength-dispersive X-ray spectrometer is used for qualitative analysis and quantitative analysis, thereby determining the content ratio (mass ratio) of tin and silver in the powder.

[0366] The average dispersed particle...

Embodiment A1

[0376] Black film production

[0377] To silver-tin colloidal liquid (mixed particle dispersion of silver-tin alloy particles and silver particles, manufactured by Sumitomo Osaka Cement Co., Ltd., solid content: 30% by mass, average dispersed particle size: 10nm, particle size distribution index D90%: 40nm, silver content Content: 91% by mass, type of dispersant: urethane random copolymer, addition amount of dispersant: 15 parts by mass) is added with a polyfunctional acrylate as a resin forming component resist (dispersion medium: PGMEA, solid content) : 1% by mass), so that the solid content volume ratio (silver-tin colloid: resist) is 3:97, and dispersed by ultrasonic treatment to produce a black paint. In addition, the above-mentioned solid content volume ratio is a charging ratio.

[0378] Next, the particle size distribution of the black paint was measured by the method described above. As a result, the average dispersed particle size was 13 nm, and the particle size distrib...

Embodiment A2

[0385] Except that in the preparation of the black film of Example A1, a resist was added so that the solid content volume ratio was 7:93, a substrate with a black film was produced in the same manner as in Example A1, and the same evaluation was performed.

[0386] The results are summarized in Table 1.

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Abstract

Provided is a black film, etc. that has superior light blocking properties, is furnished with a fixed specific volume resistivity, and contains a black material and a resin component, the volume percentage of the black material being 2 vol% to 30 vol% inclusive, the average dispersed particle size in the film being 1 nm to 200 nm inclusive, the optical density for every 1 [mu]m of thickness being at least 1, and the specific volume resistivity being at least 1011 Ocm. Also, provided is an infrared-ray-transmitting black film, etc. that has superior light blocking properties with respect to visible light rays, and at least a certain value of transmittance with respect to infrared rays, the average dispersed particle size of the black material in the film being 1 nm to 50 nm inclusive, the transmittance (T560) at a wavelength of 560 nm for every 1 [mu]m of thickness being less than 40%, and the ratio (OD950 / OD560) of the optical density (OD950) based on the transmittance at a wavelength of 950 nm to the optical density (OD560) based on the transmittance at a wavelength of 560 nm being no greater than 0.35.

Description

Technical field [0001] The present invention relates to a black film, a substrate with a black film and an image display device having the black film, a black resin composition and a black material dispersion liquid. Background technique [0002] Conventionally, as black materials, for example, as described in Patent Document 1, metal materials and inorganic materials such as carbon black, titanium black (lower titanium oxide or titanium oxynitride), iron oxide, chromium, and silver particles are known. [0003] These black materials are used as black light-shielding films, black light-shielding glass, black paper, black cloth, black ink, and black for display elements such as plasma display panels (PDP), liquid crystal displays (LCD), and organic electroluminescence (EL) displays. Matrix materials, black sealing materials, black mask materials, and other materials that impart black or light-shielding properties are used. [0004] Among them, the black matrix and black stripes (here...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/20G02B5/22G02F1/1335
CPCG02B5/22G02B5/206G02B5/20G02F1/1335
Inventor 田中伸一国光康德加藤博贡川濑刚
Owner SUMITOMO OSAKA CEMENT CO LTD