KR20080018616A - A front screen for projector presenting some patterns - Google Patents

Abstract

A projector screen is provided to utilize the screen by forming patterns with a reflection rate different from that of the screen on the screen. A projector screen comprises a screen(100) including a support(110) and a screen reflection material(120), and a pattern reflection material(200). The pattern reflection material is coated on the surface of the screen. The reflection rate of the pattern reflection material is different from that of the screen reflection material. The pattern reflection material expresses different colors from the screen when no image on the screen. While images are projected on the screen, the pattern is invisible.

Description

Front screen for projector with pattern {A FRONT SCREEN FOR PROJECTOR PRESENTING SOME PATTERNS}

1 is a cross-sectional view showing the structure of a front screen showing a pattern according to the present invention.

2 is a diagram illustrating an example of a front screen on which a pattern according to the present invention appears.

3 is a diagram illustrating another example of a front screen on which a pattern according to the present invention appears.

4 is a view showing another example of a front screen on which a pattern according to the present invention appears.

5 is a view showing another example of a front screen on which a pattern according to the present invention appears.

※ Explanation of Major Components

100 ... Desktop

110 ... Support

120 ... screen reflective material

200 ... pattern reflective material

The present invention relates to a front screen for a projector in which a pattern appears, and more particularly, a pattern such as a flag, a symbol, various trademarks or a picture is formed on the screen, so that visual advertisement effects and interior effects can be exhibited when an image is not projected. A front screen for a projector.

Conventional screens for video scams are largely classified into front screen and back screen. The front screen is to project the image to reflect the image, such as the screen of a movie theater, while the rear screen is to see the image through which the projected image is transmitted from the back of the screen such as a projector TV CRT or a billboard.

First, the quality of the screen has been determined according to how neatly and cleanly the surface of the image screen is manufactured using the reflectance of light.

The representative products of the front screen on the market are matt screen (generally made of film by mixing white matte oil ink with natural rubber material), glass bead screen (made of glued glass powder on mat screen fabric) There are dozens of kinds of screens according to glass powder and adhesive technology by company), ultra-bead screen (screen made by attaching fine glass powder to white matte soft rubber support of polypropylene (PP) material), PET screen (PET material) Matte oily white ink or gray ink, matte oily white paint or gray paint sprayed or coated with laminating technique, matte aluminum silver screen (aluminum powder or aluminum foil as matt) Screens) etc. The kinds of screens are manufactured on the basis of matte.

By color, it can be divided into white series, gray series with a little black on the white, and silver (silver) series for maximum light reflectance, and the use of these colors can screen images with natural colors. It is to express.

Herein, the light reflectance is generally a unit called gain, which is a standard unit commonly used in the screen industry (the reflectance of pure matte white is 1Gain).

For example, the above-mentioned matte screen is recognized as 1Gain, glass beads 1.5Gain, ultrabead 2.5Gain, PET screen 3Gain, silver screen 4-20Gain, and is manufactured differently according to each company.

In addition, the front screen is typically composed of a backing material and a screen reflective material.

First, the support may be a variety of plate materials such as film fabric, PET film fabric, FRP plate made of a soft rubber material.

In addition, the screen reflective material is present on the surface of the support or mixed with the support, and includes matte oil ink (generally white and gray ink mixed with black on white) and oil paint (generally white and white). Black mixed gray), glass powder, matt aluminum powder, matt aluminum foil and the like can be adopted.

The manufacture of such a front screen is accomplished by mixing a screen reflective material on the support or applying, spraying or coating on the surface thereof.

On the other hand, the quality of the rear screen is determined by how well the color of the image can be expressed and the light transmittance.

After all, the conventional front screen and the rear screen is to perform the function just by projecting the image to see the desired image, the surface was always composed of a single color and had to be made clean and clean without a single dust.

Therefore, conventionally, when the image is not projected, the surface looks very monotonous and no advertising effect can be exhibited.

Of course, Korean Laid-Open Patent Publication No. 2002-0036628 discloses a configuration for displaying an advertising effect while an image is not projected by performing a special treatment in which a predetermined trademark or logo is engraved on the rear screen, but this is translucent film and acrylics. There is no information on forming a pattern on the front screen until the translucent film having a trademark or logo formed therebetween and using the difference in transmittance.

An object of the present invention can see a pattern of a predetermined shape when the image is not projected can exhibit a visual advertising effect or interior effect, but when projecting the image front screen for a projector that can see a clear image like a normal screen To provide.

In order to achieve the above object, the front screen for a projector according to the present invention,

A base screen composed of a support and a screen reflecting material and a pattern reflecting material having a different reflectance from the screen reflecting material and representing a predetermined pattern on the surface of the base screen are additionally formed so that the color is distinguished when an image is not projected. While the image is projected, the pattern is not visible to the naked eye.

Here, the difference between the reflectance of the pattern reflecting material and the reflectance of the screen reflecting material is preferably in the range of 0.01Gain to 2Gain.

In addition, the pattern reflective material may be any one or more selected from matte oil ink, matte oil paint, matte aluminum powder, matte aluminum foil, fine glass powder.

In addition, the screen reflective material may be selected from matte oil ink, matte oil paint, matte aluminum powder, matte aluminum foil, fine glass powder.

Here, the matte oil ink and the matte oil paint is preferably composed of white or gray.

It is preferable that the said pattern reflecting material further contains silver powder.

In addition, the patterned reflective material may be composed of two or more layers with different reflectances.

In addition, the pattern reflecting material may be formed in two or more regions by varying the reflectance so that three or more colors may be displayed.

Hereinafter, with reference to the accompanying Figures 1 to 3 will be described in detail a preferred embodiment of the present invention.

As shown in FIG. 1, a front screen 1000 for a projector in which a pattern according to the present invention appears, includes a base screen 100 composed of a support 110 and a screen reflective material 120, and the base screen 100. On the surface of the screen reflective material 120 is characterized in that the pattern reflecting material 200, which represents a pattern (pattern), such as a predetermined letter, pattern, or character having a different reflectance is formed.

Accordingly, when the image is not projected, the color looks distinct between the pattern and the surface of the background screen, while the image is not visually distinguished when the image is projected.

By using this property, a predetermined pattern can be seen by the naked eye while the image is not projected, thereby having an advertising effect.

As shown in Figures 2 and 3, the front screen 1000 may be of a fixed installation to any arbitrary fixture, it may be of a configuration that can be stored by rolling the flexible one.

In addition, the pattern means a national flag, a symbol (general, religious), various trademarks or pictures, etc., which may be formed on the screen surface by a conventional method such as pasting, sprinkling, painting, or applying.

First, as described above, the base screen on which the pattern reflective material is to be formed is a matt screen (a product made of a film form by mixing white matte oil ink with a natural rubber material, and there are dozens of kinds for each company, but collectively) Glass bead screen (a screen made by attaching glass powder to the mat screen fabric with adhesive), and there are dozens of kinds according to glass powder and adhesive technology by company, and ultra bead screen (fine polypropylene (PP) white matte soft rubber support) Screen made of glass powder), PET screen (matte white ink or gray ink on PET support, sprayed with matte white paint or gray paint or coated with laminating technique), silver screen made of matt aluminum A matte aluminum powder or aluminum foil that maximizes light reflectance Lean) may be employed.

That is, the substrate constituting the base screen may be a film fabric made of a soft natural rubber material, PET film fabric, FRP plate, PP plate and other various plate materials, the screen reflective material is matte oil ink, matte oil paint, matte Any one of aluminum powder, matt aluminum foil, and fine glass powder may be selected.

In addition, the pattern reflective material may be composed of any one or more selected from matte oil ink, matte oil paint, matte aluminum powder, matte aluminum foil, fine glass powder. That is, either one may be used or two or more kinds may be mixed and used.

The matte oil ink and matte oil paint may be composed of white or gray.

The difference between the reflectance of the pattern reflecting material and the reflectance of the screen reflecting material is preferably in the range of 0.01Gain to 2Gain. This means that if the reflectance is less than 0.01Gain, the effect between the background screen and the pattern reflective material may not be felt, and the advertising effect is greatly reduced. Because you can't see the video.

The reflectance control of the pattern reflecting material can be made by adding some other material or changing the particle size. For example, when the pattern reflective material is formed on the base screen, the addition of silver powder to the pattern reflective material increases the reflectance. When the aluminum powder is used as the pattern reflective material, the reflectance also increases. do. The silver powder is not defined in the amount of addition and can be appropriately adjusted against the reflectance of the screen reflective material of the background screen. However, the silver powder needs to be appropriately maintained so that the difference between the reflectance of the pattern reflecting material and the reflectance of the screen reflecting material does not deviate from the above-described range.

In addition, the pattern reflective materials 200a and 200b may be formed of two or more layers by varying reflectances on the surface of the base screen 100. If comprised in this way, the pattern distinguished by three or more layers from which a color may differ may be formed. As an example, a multilayered pattern material is shown in FIG. 4 to represent three colors.

In addition, the pattern reflective materials 200a and 200b may be formed in two or more regions on the screen reflective material 100 by varying reflectances. With this configuration, a pattern of three or more areas distinguished by different colors can be formed. For example, FIG. 5 shows a multi-zone pattern representing three colors.

On the other hand, since the front screen according to the present invention uses the reflectance of the surface, the thickness of the pattern reflective material and the base screen is meaningless, and it is sufficient that the feeling of protrusion due to the thickness of the pattern reflective material is not felt.

In order to manufacture the front screen according to the present invention, first, the pattern to be displayed on the matte screen, glass bead screen, ultra bead screen, PET screen, silver screen fabric, and the matte oil ink, matte oil paint, matte Aluminum powder (where matte aluminum powder is a mixture of matte aluminum powder and diluent (thinner, solvent or enamel, etc.) mixed with resin such as epoxy or urethane) Or by mixing, spraying, painting or painting.

Alternatively, a desired pattern may be formed by coating (silk printing method, gravure and laminating method) on the surface of the base screen.

Here, an embodiment relating to manufacturing will be briefly described by taking a mat screen as an example.

First, matte screen is a product made of a film form by mixing white matte oil ink with natural rubber material. White matte is a product that can express reflectance of 1Gain.

The desired shape is designed on the screen fabric thus made.

Next, either ink or paint is selected, and a small amount of black is mixed with white to form gray. The brightness of gray is adjusted to about 0.8Gain, and applied to the patterned surface by spraying or coating to form a pattern.

Accordingly, the pattern is clearly distinguished when viewed with the naked eye, but the pattern form cannot be visually identified when the image is viewed. Of course, the brightness of the pattern can be brighter or darker based on existing matt screen fabrics.

Such reflectivity or brightness can be obtained by adjusting the color mixing ratio of the matte oil ink, the matte oil paint, the addition of silver powder, or the particle size of the matte aluminum powder, and the color is felt differently depending on the brightness.

Such experimental examples were similarly obtained for glass beads, ultra screens, PET screens, or silver screens, and a predetermined pattern was applied to the desktop screen, and materials such as matte oil ink, matte oil paint, and matt aluminum powder were sprayed. It was applied to the background screen by coating, drawing, painting, etc. to form a pattern reflective material.

According to the present invention of the above-described configuration, unlike the front screen for the conventional projector that can not be used for purposes other than expressing the image, the image can be viewed, of course, if the image is not viewed visually Recognizing patterns has the added benefit of providing advertising and visual interior effects.

Claims (8)

A base screen composed of a support and a screen reflecting material and a pattern reflecting material having a different reflectance from the screen reflecting material and representing a predetermined pattern on the surface of the base screen are additionally formed so that the color is distinguished when an image is not projected. While the image is projected, the pattern is not visible to the naked eye. The method of claim 1, The difference between the reflectance of the pattern reflecting material and the reflectance of the screen reflecting material is in the range of 0.01Gain to 2Gain. The method of claim 2, The pattern reflective material is a front screen for a projector, characterized in that any one or more selected from matte oil ink, matte oil paint, matte aluminum powder, matte aluminum foil, fine glass powder. The method of claim 3, The screen reflective material is any one selected from matte oil ink, matte oil paint, matte aluminum powder, matte aluminum foil, fine glass powder. The method according to claim 3 or 4, The matte oil ink and the matte oil paint is a front screen for a projector, characterized in that consisting of white or gray. The method of claim 3, The patterned reflective material further comprises a silver powder front screen for the projector. The method according to any one of claims 1 to 4, The patterned reflective material is a front screen for a projector, characterized in that consisting of two or more layers of varying reflectance. The method according to any one of claims 1 to 4, The patterned reflective material is formed in two or more regions with different reflectances, and thus displays three or more colors.

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