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

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 bonding between black matrix and substrate, etc.

Active Publication Date: 2015-09-09
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 with black film, and image display device, and black resin composition and black material dispersion
  • Black film, substrate with black film, and image display device, and black resin composition and black material dispersion
  • Black film, substrate with black film, and image display device, and black resin composition and black material dispersion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0360] Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to these Examples at all.

[0361]

[0362] (Each measurement, evaluation method)

[0363] Each measurement or evaluation method used in Examples or Comparative Examples, such as properties of materials and sheets, is shown below.

[0364] Content rate of silver component in black material

[0365] The content of the silver component in the black material (silver-tin alloy particles or the mixed particles of silver-tin alloy particles and silver particles) is obtained by the following method: using an electron beam microanalyzer (EPMA: JXA8800, manufactured by JEOL Ltd.) The powder compact of the black material powder was analyzed, and qualitative analysis and quantitative analysis were performed using a wavelength dispersive X-ray spectrometer, thereby measuring the content ratio (mass ratio) of tin and silver in the powder.

[0366] Average dispersed particle dia...

Embodiment A1

[0376] Production of black film

[0377] Silver tin colloidal liquid (mixed particle dispersion liquid of silver tin alloy particles and silver particles, manufactured by Sumitomo Osaka Cement Co., Ltd., solid content: 30% by mass, average dispersed particle diameter: 10nm, particle size distribution index D90%: 40nm, silver component Content: 91% by mass, type of dispersant: polyurethane-based random copolymer, amount of dispersant added: 15 parts by mass), resist (dispersion medium: PGMEA, solid content : 1% by mass) so that the solid content volume ratio (silver tin colloid: resist) was 3:97, and dispersed by ultrasonic treatment to form 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 diameter was 13 nm, and the particle size distribution index D90% was 48 nm.

[0379] Then,...

Embodiment A2

[0385] Except having added the resist so that solid content volume ratio may become 7:93 in preparation of the black film of Example A1, the base material with a black film was produced similarly to Example A1, and it evaluated similarly.

[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 µm of thickness being at least 1, and the specific volume resistivity being at least 1011 O·cm. 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 µm 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 black film-coated substrate having the black film, an image display device, a black resin composition, and a black material dispersion. Background technique [0002] Conventionally, metal materials such as carbon black, titanium black (lower titanium oxide or titanium oxynitride), iron oxide, chromium, and silver particles, and inorganic materials are known as black materials, for example, as described in Patent Document 1. [0003] These black materials are used as the black color of display elements such as black light-shielding film, black light-shielding glass, black paper, black cloth, black ink, plasma display panel (PDP), liquid crystal display (LCD) and organic electroluminescent (EL) display. Matrix materials, black sealing materials, black masking materials and other materials that impart black or light-shielding properties are used. [0004] Among them, the black matrix and black stripes (her...

Claims

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Application Information

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Patent Type & Authority Patents(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