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Indicator and making method thereof

A technology of a display device and a manufacturing method, which is applied in the directions of identification device, cold cathode manufacturing, electrode system manufacturing, etc., can solve the problems of prolonged processing time, decreased productivity, and increased equipment cost, and achieves excellent productivity, no abnormal appearance, Excellent contrast characteristics

Inactive Publication Date: 2002-10-02
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when drying at a higher temperature than usual, a heating device or a cooling device for the fluorescent surface is required, which increases the equipment cost.
In addition, when drying at a low temperature, the processing time will be prolonged and the productivity will decrease

Method used

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  • Indicator and making method thereof
  • Indicator and making method thereof
  • Indicator and making method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0066] (Examples 1-6, Comparative Examples 1-3)

[0067] (1) Adjustment of solution for absorbing layer formation

[0068] First, adjust the Si(OC 2 h 5 ) 4 (Silicon tetraethoxide) is 2.0wt%, H 2 O is 8.0wt%, HNO 3 It was a mixed solution in which 0.1 wt% of the remainder was ethanol, and it was stirred at 50° C. for about 1 hour.

[0069] Next, 10 wt % of a pigment dispersion liquid containing an organic pigment and the organoorganosilane coupling agent shown in Table 1 were added to 55 wt % of this mixed liquid, and the remaining part was changed to IPA (Iso Propyl Alcohol: isopropyl alcohol) The solution was stirred for about 30 minutes, and the solution for forming an absorbing layer was adjusted.

[0070] In addition, the pigment dispersion was prepared by dispersing dioxane (dioxazine: dioxazine) violet in isopropanol at a concentration of 2.4 wt%.

[0071] (Table 1)

[0072] (2) Adjustment of the solution for forming the conductive layer

[0073] (2) Adjustment...

Embodiment 7

[0089] (1) Adjustment of the solution for forming the absorbing layer

[0090] First, adjust the Si(OC 2 h 5 ) 4 (Silicon tetraethoxide) is 2.0wt%, H 2 O is 8.0wt%, HNO 3 It was a mixed liquid containing 0.1% by weight of ethanol as the remainder, which was stirred at 50° C. for about 1 hour.

[0091] Next, add 4wt% of pigment dispersion liquid containing organic pigment and organic organoorganosilane coupling agent (methyltrimethoxysilane) to 55wt% of this mixed solution, and the remaining part has become IPA (IsoPropylAlcohol: isopropyl alcohol) The solution was stirred for about 30 minutes, and the solution for forming an absorbing layer was adjusted.

[0092] In addition, the pigment dispersion was prepared by dispersing dioxane (dioxazine: dioxazine) violet in isopropanol at a concentration of 2.4 wt%.

[0093] (2) Adjustment of the solution for forming the conductive layer

[0094] A solution for forming a conductive layer containing ethanol as a main solvent and ...

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Abstract

A display device comprising a fluorescent screen surface and a multi-layer anti-reflective electrification film composed of three or more layers formed on the fluorescent screen surface. The multilayer anti-reflective electrification film has an absorbing layer, a conductive layer, and a protective layer in this order from the phosphor screen side. The above absorbing layer contains at least one organic pigment, SiO2 and organic organoorganosilane coupling agent, and the content of the above organic organoorganosilane coupling agent is less than 7 times the total weight of the solid parts of the above SiO2 and the above organic pigment. It is desirable that the above-mentioned organoorganosilane coupling agent has a group selected from alkyl, vinyl, phenyl, epoxy, carbonyl, ether, carboxyl, ester, mercapto, amido, amino, cyano and nitro at least one functional group of . The display device of the present invention can produce a multilayer reflective antistatic film at a relatively low temperature and in a short time without using a large-scale heating device or cooling device, has no abnormal appearance, and has excellent contrast characteristics of displayed images.

Description

technical field [0001] The present invention relates to a display device and a manufacturing method thereof, in particular to an antireflective electrification film formed on the fluorescent surface of a cathode ray tube. Background technique [0002] On the surface treatment film of the display device, it is possible to maintain the function of preventing reflective electrification, reducing the transmittance of the fluorescent surface of the display device and improving the contrast, etc. Furthermore, by maintaining the wavelength selective absorption characteristics in the surface treatment film, the color purity of the luminous body can be improved. In addition, the cathode ray tube may also have an electromagnetic shielding function not limited to the prevention of electrification. [0003] Therefore, in recent years, using conductive layers made of metal fine particles and SiO 2 2-layer anti-reflective anti-static film that constitutes the protective layer. For the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/10G02B1/11G02B1/111G02B1/16G09F9/00H01J9/00H01J29/88H01J29/89H01J31/00H04N5/72H05K9/00
CPCH01J29/896Y10T428/31663H01J31/00
Inventor 千草尚高桥大树阿部美千代青木克之
Owner KK TOSHIBA
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