JPH10206601A - Light reflection preventive panel for crt display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively and easily manufacture a light reflection preventive panel, and reliably install in on the display surface of a CRT display having various curvatures by providing a flexible synthetic resin plate and a reflection preventive layer constituted on its surface. SOLUTION: A light reflection preventive panel 1 for a CRT display is curvedly formed in an almost quadrangular shape according to curvature of the display surface of the CRT display. This panel 1 is composed of a base board and a reflection preventive layer formed on the surface of this base board. The base board is molded by a flexible synthetic resin excellent in light transmissivity. For example, a resin by making a rubber component mixedly exist in polymethyl methacrylate, an acrylic resin or the like are used as this synthetic resin. The reflection preventive layer of the surface of the base board is molded by vacuum evaporation and sputtering or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-reflection panel for a CRT display which is attached to a CRT display surface of a personal computer, a word processor, a television or the like to suppress reflection of light.

[0002]

2. Description of the Related Art In general, in a personal computer, a work station, a word processor or the like equipped with a CRT display, light from the outside is reflected on the surface of a cathode ray tube (CRT), and the display on the screen becomes difficult to see. As a countermeasure for preventing the reflection of light, embossing or non-glare processing is generally applied to the display surface of the cathode ray tube.

Further, an anti-reflection effect is provided by attaching a mesh sheet so as to cover the surface of the cathode ray tube, or an anti-reflection film is formed on a panel processed by a glass press and attached to the display surface of the cathode ray tube. There is something.

[0004]

However, when embossing or non-glare processing is applied to the display surface of a cathode ray tube, it is possible to solve the problem due to the reflection of light from the outside, but at the same time, the light from the inside is not affected. Transmission is also suppressed, and the transmittance is reduced. As a result, there is a problem that the screen display becomes unclear.

When a mesh sheet is attached,
The antireflection effect is not sufficient.

Further, when an antireflection film is formed on a panel processed by a glass press, there is no problem in terms of the antireflection effect, but there is a problem in terms of manufacturing cost. In other words, since the curved surface of a cathode ray tube differs depending on the type of product, if a panel is to be made to match the curved surface of each cathode ray tube, it is necessary to manufacture a press die for each cathode ray tube, which significantly increases the production cost. There is a problem of bulkiness.

The present invention has been made in view of the above problems, and can be easily manufactured at low cost, can be securely attached to a display surface of a CRT display having various curvatures, and has a sufficient antireflection effect. It is an object of the present invention to provide an anti-reflection panel for a CRT display which can obtain the following.

[0008]

In order to solve the above problems, a light reflection preventing panel for a CRT display according to the present invention is formed so as to be curved in accordance with the curvature of the display surface of the CRT display and has flexibility. A synthetic resin plate that absorbs a slight difference in curvature when bonded to the display surface of a CRT display, and an antireflection layer formed on the surface of the synthetic resin plate.

[0009] With this configuration, it is possible to attach the light reflection preventing panel for a CRT display to the surface of the CRT display only by adjusting the outer dimension to the size of the display surface of the CRT display. At the time of bonding, the synthetic resin plate is formed to be curved in accordance with the curvature of the display surface of the CRT display and has flexibility, so that a slight difference in curvature is absorbed and the display surface of the CRT display is absorbed. Can be stuck to each other reliably.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below.
This will be described with reference to the accompanying drawings.

As shown in FIG. 1, the light reflection preventing panel 1 for a CRT display according to the present embodiment is formed in a substantially square shape so as to match the display surface of the CRT display. Further, it is formed to be curved in accordance with the curvature of the display surface of the CRT display. The curvature of this display surface is
A large number of CRT displays are examined by market research, etc.
The average value is calculated and determined. As shown in FIG. 2, the antireflection panel 1 includes a substrate 2 and an antireflection layer 3 formed on the surface of the substrate 2.

The substrate 2 is formed of a flexible synthetic resin having excellent light transmittance. As the synthetic resin, for example, a resin in which a rubber component is mixed with polymethyl methacrylate, an acrylic resin, polycarbonate, polyvinyl chloride, polystyrene, or the like is used. The synthetic resin pellets are poured into a mold having only the outer dimensions specified for the size of the CRT display, and the anti-reflection panel 1 is formed. Also, a wide anti-reflection panel 1 having a predetermined curvature
May be pressed to the size of a CRT display. Since the substrate 2 is made of a flexible synthetic resin, it can be easily cut. For this reason, the wide anti-reflection panel 1 may be individually cut in accordance with each CRT display.

The antireflection layer 3 on the surface of the substrate 2 is formed by vacuum deposition, sputtering, or the like. When the antireflection layer 3 is formed, a pretreatment is performed on the surface of the substrate 2.
This pretreatment is for preventing the antireflection layer 3 from peeling off. That is, an object of the present invention is to improve the adhesion between the substrate 2 and the antireflection layer 3 and to improve film peeling caused by stress caused by bending or the like of the antireflection panel 1. By this pretreatment, the substrate 2 and the antireflection layer 3
Then, the primer layer 4 is formed. A specific method of this pretreatment is performed by dipping, spin coating, or the like. As a method for drying the primer layer formed by dipping or the like, there is thermal drying, but from the viewpoint of work efficiency, a method of curing with ultraviolet rays is desirable.

The antireflection layer 3 is formed on the substrate 2 after the pretreatment by vacuum evaporation or sputtering. The manufacturing method and configuration of the anti-reflection layer 3 are described in JP-A-2-8535.
It is preferable to use a "plastic coating method" described in JP-A No. 3 and a "Anti-reflection film of a plastic substrate" described in JP-A-3-107801.

The anti-reflection panel 1 configured as described above is attached to the display surface of a CRT display via an adhesive.

[Embodiment] A manufacturing example of the anti-reflection panel 1 using a specific material will be described below.

(1) As the substrate 2, an impact-resistant acrylic resin SA104 (manufactured by Kuraray Co., Ltd.) was used. The thickness of the substrate 2 was 2 mm. The flexibility of the substrate 2 is
When a 20 cm long one is bent, both ends are in contact with each other.

(2) The substrate 2 was formed into a target shape by injection molding a pellet.

(3) The surface of the substrate 2 was cleaned with a pure water cleaning material.

(4) As a material used for the pretreatment, a base coat agent VB-8083u (a base coat agent manufactured by Fujikura Kasei Co., Ltd.) was used. This base coat agent was applied by spin coating so as to form a film having a thickness of 2 μm, and ultraviolet curing was performed.

(5) The substrate 2 having been subjected to the pretreatment was put in a vacuum deposition layer to form an antireflection layer 3 having the structure shown in FIG. Specifically, the base coat agent VB-8083u
CeO2 and S on the surface of the primer layer 4 molded by
and iO2 were alternately laminated.

The film characteristics of the anti-reflection panel 1 are as shown in FIG. As can be seen from the figure, the reflectance was constant at about 4.1% when the anti-reflection layer 3 was not formed only with the substrate 2, but when the anti-reflection layer 3 was formed, the visible light In the area has decreased significantly. In addition, as shown in FIG. 4, the transmittance is significantly higher in the visible light region than in the ultraviolet light.

When the anti-reflection panel 1 was attached to the display surface of a display of a personal computer, no film was peeled off between the substrate 2 and the anti-reflection layer 3, and good results were obtained.

Note that an adhesive is used as a means for attaching to the display surface of the display. This adhesive may be adhered to the back surface of the anti-reflection panel 1 as an adhesive layer from the beginning, or may be sold as a separate member attached to the anti-reflection panel 1.

[Effects] As described above in detail, the anti-reflection panel 1 of the present embodiment is formed to be curved in accordance with the curvature of the display surface of the CRT display, and the substrate 2 has flexibility. Therefore, it can be stuck to the CRT display surface without fail. At this time, even if the curvature of the anti-reflection panel 1 and the curvature of the display surface of the CRT display are slightly different, since they have flexibility, the difference can be absorbed and bonded securely.

Further, since only one mold is required for molding the light reflection preventing panel 1, the cost can be reduced.

Further, since the anti-reflection panel 3 is formed by providing the anti-reflection layer 3 on the surface of the substrate 2, light from the outside is suppressed by the anti-reflection layer 3, and the reflection of light is reliably prevented. Will be able to do it.

Further, the antireflection layer 3 mainly transmits the visible light region and does not transmit ultraviolet light, and is therefore effective against eye fatigue and the like.

[Modification] In the above embodiment, a large number of CRs
The average value of the curvature of the display surface of the T display is taken as the curvature of the anti-reflection panel 1. However, when there is a display surface having a large curvature or a small curvature that cannot be dealt with by only one curvature, the light reflection prevention panel 1 One curvature may be set to two or more types. That is, two or more kinds of antireflection panels 1 having different curvatures may be formed. Also, the same type of CRT
Even in the case of a display, there is some dimensional variation when mass-produced. Therefore, the anti-reflection panel 1 is formed in accordance with the curvature of the CRT display and used to eliminate the variation between products during mass production. Is also good.

In the above-described embodiment, the anti-reflection panel 1 is formed to be curved in conformity with the display surface of the CRT display. There is also.

Further, in the above embodiment, the anti-reflection layer 3
Has a four-layer structure, but may have a structure of three or less layers or five or more layers. Set according to the required performance.

[0032]

As described above in detail, according to the anti-reflection panel of the present invention, the synthetic resin plate which is formed to be curved in accordance with the curvature of the display surface of the CRT display and which constitutes this panel is formed. Since it has flexibility, even if there is a slight difference in the curvature of each surface to be bonded, the difference can be absorbed due to the flexibility, and the bonding can be performed reliably.

Further, since the difference in curvature of the display surface of the CRT display is absorbed by the above-mentioned flexibility, various types of CRT displays can be handled only by the light reflection preventing panel having one kind of curvature. For this reason, only one mold is required for molding the anti-reflection panel, and the manufacturing cost can be reduced.

Further, since an anti-reflection panel is formed by providing an anti-reflection layer on the surface of the synthetic resin plate, external light is suppressed by the anti-reflection layer, and the reflection of light can be reliably prevented. become able to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a light reflection preventing panel for a CRT display according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part showing a laminated structure of the anti-reflection panel.

FIG. 3 is a graph showing the relationship between the reflectance of an anti-reflection panel and the wavelength of light.

FIG. 4 is a graph showing the relationship between the transmittance of the anti-reflection panel and the wavelength of light.

[Explanation of symbols]

1: anti-reflection panel for CRT display, 2: substrate, 3: anti-reflection layer, 4: primer layer.

Claims (1)

[Claims] 1. A synthetic resin plate which is formed to be curved in accordance with the curvature of a CRT display surface, has flexibility, and absorbs a slight difference in curvature when bonded to the CRT display surface. An anti-reflection panel for a CRT display, comprising: an anti-reflection layer formed on a surface of the synthetic resin plate.