JPS6044564A - Film composition for preventing dazzle - Google Patents

Abstract

PURPOSE:The titled composition for preventing asthenopia and reduction in vision, by blending an ultraviolet-curing coating compound with a specific amount of an inorganic substance consisting of SiO2 and Al2O3, having a SiO2 amount larger than an Al2O2 amount to give a composition, applying it to a screen of a visual display terminal, etc. CONSTITUTION:(A) An ultraviolet-curing coating compound is blended with (B) 2-30wt% inorganic substance having <=2.5 specific gravity. 70-90wt% total amounts of SiO2 and Al2O3, and a SiO3 amount larger than an Al2O3 amount, to give the desired composition. It is applied to a screen of visual display or a filter board, to form a film. EFFECT:Preventing reflection on a screen or having alleviating effect on flicker.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composition for use in an anti-glare coating for the screen of visual displays such as computers and word processors.

Conventional visual displays have been known to cause eye irritation, such as difficulty in viewing due to the reflection of light from surrounding lighting or natural light on the screen surface, irritation caused by the shine of characters, symbols, or figures displayed on the screen, and flicker. ! In order to alleviate this, we use a molded plate filter whose surface is processed using a specially weighted mold made of synthetic resin such as polymethyl methacrylate or polycarbonate, or we use calcite or high-purity silica on the surface of roots made of the materials mentioned above. A plate-shaped filter coated with a paint mixed with inorganic granules, etc., is used, or the lighting position is changed.

However, among these methods, there are space constraints when changing the lighting position or the visual display installation location, and there are disadvantages in that they do not eliminate reflections and flickering on the screen, and there are also dI silica granules! The method of matching is the strength of the paint film,
There is a problem with scratch resistance.

The object of the present invention is to overcome the above-mentioned conventional drawbacks.

Provides an anti-glare coating composition that can be applied in advance onto a display screen or a filter installed in front of the screen to prevent eye strain and visual acuity deterioration caused by staring at a visual display screen. There is something to do.

Therefore, the present invention provides an ultraviolet curable paint having a specific gravity of 2.5 or less, a chemical component mainly consisting of 5iOz and A[b, and a total of 5i(lh and Mα content of 70% or more).
% or less and the amount of 5iQ2 is greater than the amount of A101 in the range of 2% to 30% by weight, and the composition is applied to the screen of a visual display or to the filter root installed in front of the screen to form a coating film. It is a thing.

The above inorganic substance is obtained naturally or artificially and has a particle size of 20p.
It is preferable to use the following: As mentioned above, when this inorganic substance is mixed with an ultraviolet curing paint at the above concentration, applied to a polymetal methacrylate or polycarbonate resin plate, and cured with an ultraviolet lamp with a wavelength range of 200 to 420 nm, a translucent filter is created. A membrane is obtained.

In this case, there is no particular limit to the thickness of the resin plate, and it is generally 0.
．． 3 to 2.0 mm is used, and the coating method is as follows.

Any of the spray method, dipping method, or spreader method may be used to form an anti-glare coating film of 5 to 200 films J1 on both sides or one side of the board.

Applying an ultraviolet curable paint mixed with inorganic substances to the screen prevents light from being reflected from the display screen, thereby preventing eye strain and deterioration of visual acuity caused by staring at the screen.

EXAMPLES Next, the present invention will be explained in more detail with reference to examples, but the present invention is not limited by these examples.

〔Example〕

An acrylic urethane-based ultraviolet curing paint is uniformly mixed with an inorganic material adjusted to have the chemical composition and particle size distribution shown in Tables 1 and 2 together with a solvent such as thinner at a mixing concentration of 5% by weight. Take it to a spray gun.

Next, 300X 400m/mj cut plate knob 0
．． 3 m/n of polycarbonate was placed on a horizontal catch, air pressure was 4 Kg/cm2, spraying distance was #2 oofil/ffl, and the average thickness was 0.7 m/ra.
Apply it evenly so that it becomes p. Immediately after application 250
Watt's infrared lamp: After pre-drying with a trowel for about 3 minutes to sufficiently release the solvent, it was irradiated with an 80 w/cm ultraviolet lamp with a reflector for about 10 seconds from a distance of 200 mm/cm to cure it.

The thus obtained resin coated plate was subjected to a series of tests including coating adhesion, coating III hardness, and optical tests including total light and scattered light transmittance and gloss, all of which showed good values. .

In parallel, a monitor test was conducted on 10 adult women as a screen filter for a visual display terminal, and the results showed that it had a mitigating effect on both anti-reflection and flicker, and was good for preventing eye fatigue. It was confirmed that

Table 1 Chemical composition Table 2 Particle size distribution procedure amendment (spontaneous) January 12, 1980 Commissioner of the Patent Office Sir 1, Indication of case 1982 Patent Application No. 152478
No. 2, Name of the invention Anti-glare coating composition 3, Relationship with 91 amendments Patent applicant Mitsui Toatsu Kiko Co., Ltd. 4, Agent 5, ``Details of the invention'' in the specification subject to amendment Contents of the amendment in column 6 of "Explanation" (1) "Polymetal" on page 8, line 14 of the specification is corrected to "1 polymethyl."

(2) Page 4 of the specification, line 19, “400m/m” and 1
1-0J/mJ is corrected as LOOmmJ and 10.3mmJ, respectively.

(3) 1200m/mJ on page 4, line 18 of the specification
Correct it to 00mm J.

(4) Page 4 of the specification, 1900 Ll "0.7 m/m J is corrected to "0.7 mm J.

(5) On page 4 of the specification, "191200 n1m/am" is corrected to "200mm."

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Claims (1)

[Claims] Two weights of an inorganic material with a specific gravity of 2.5 or less, whose chemical components are mainly 5iOz5 and M2O1, where the total content of 5i02 and Af2α is 70% or more and 80% or less, and where the amount of 5iO7 is greater than the amount of AQzCh is added to the ultraviolet curable paint. % to 30% by weight, and the composition is applied directly to a screen such as a visual display terminal, or applied to a filter plate installed in front of the screen to form a coating film. Coating film composition for use.