KR200386985Y1 - Non Curling Screen - Google Patents

Abstract

The present invention is designed to make the screen without curling by increasing the surface smoothness of the screen fabric in the image using light, so that the image light formed on the screen can be uniformly touched to the screen surface. It is designed to make a screen. A screen with excellent smoothness because there is no curling in the form of film that makes the image light coming out of a kind of light expressing device reaches to the screen constantly and does not distort the image light when it is seen again. to be.

Description

Smooth Screen {Non Curling Screen}

The present invention is a phenomenon in which the screen touches from the light source projecting light, the curvature occurs on the screen itself due to the change of screen properties according to the manufacturing and external environment, so that the image light is not uniformly formed on the screen surface, causing partial distortion of the image. By using PET film with very stable physical properties of the fabric itself as the fabric material, the warpage is eliminated primarily, and the curling phenomenon is fundamentally applied by applying it to the screen product by heat-bonding without the use of a hard curing adhesive. Removed film screen. Lateral and central warpage on both sides of existing screens are caused by the fabric and fabric, and the soft PVC is glued to the fabric to cause hardening of the adhesive and the interlayer fabric and fabric are not woven at regular intervals. do. In other words, the uniform force distributed over the entire surface due to the weight of the screen itself is caused by irregular fabrics and fabrics irregularly distributed one by one, causing this curling phenomenon. In addition, fabrics and fabrics absorbing moisture in the air are deformed along with the evaporation of moisture, and this problem occurs, so PET film is used instead of fabric and cloth to eliminate the problem. The thermally bonded film gave stability to the entire screen so that curling did not occur.

The present invention is to solve the conventional problems as described above, the object of the present invention is to increase the smoothness of the screen to be seen in a state in which the light source of light is maintained at a constant distance, the screen is completely deformed to the environmental changes of the outside and inside It is characterized by the fact that it is a screen with excellent smoothness, manufactured to be free of this.

The engineering plastic film (PET-polyethylene terephthalate) (1) and the soft PVC (2) layers are bonded by heat rather than by adhesive, that is, by a calender process using hot melting. . The primary screen is made by surface coating on the fabric thus made by normal post-processing. Generally, gravure printing is performed, and the next process can be diversified screen products by selective processing such as EMBO and glass powder coating.

In this way, the pasting of conventional fabrics and fabrics with the soft PVC (2) by chemical method is made by PET film selection and heat bonding, which is not affected by the deformation of the soft PVC (2) at all. It is designed to give a differentiation from the existing screen fabrics which cause curling due to curing and irregularities of the fabrics. In order to eliminate the curling phenomenon, the hardened adhesive part was not used, and instead of the conventional fabric (cloth), a double-sided primer-treated engineering plastic film (PET-polyethylene terephthalate) (1) was used. It is a technical feature of this product that it is used and bonded by heat and pressure.

1 is a perspective view of the layer separation for each characteristic in the present invention.

Engineering plastic film (PET-polyethylene terephthalate) (1) uses a film with a thickness of 0.07 ~ 0.3mm and there is no deformation of its own, so it is bent to a support layer that is not affected by the change of the flexible PVC layer bonded to both sides. In order to eliminate the curling, it was used instead of the existing fabric and cloth. And it is characterized by not being affected by the curing of the flexible PVC (2) layer. In addition, the bonding of the flexible PVC (2)) and the engineering plastic film (PET-polyethylene terephthalate) (1) is performed by heat and pressure bonding with a hard-curing adhesive bonding, that is, a calender process rather than a chemical method. Was done. In general, the engineering plastic film (PET-polyethylene terephthalate) (1) used a primer (Primer) film on both sides because the adhesive strength is weak, the soft PVC (2) is not more than 0.25mm thick. Engineering Plastic Film (PET-Polyethylene Terephthalate) (1) When the flexible PVC (2) layer on both sides is 0.5mm or more, deformation of the Soft PVC (2) layer affects the engineering plastic film (PET-Polyethylene terephthalate) (1) The thickness of the flexible PVC layer should not exceed 0.25 mm. This is also to eliminate curling. Engineering plastic film (PET-polyethylene terephthalate) (1) is a very stable film with little moisture content and is a screen fabric support layer.

As mentioned above, the screen without curling according to the present invention improves the smoothness than the existing screen to eliminate distortion of the image and improves the external deformation generated over time by applying materials and processing methods. The problem of the existing roll screen can be improved and applied to all roll screens of an image apparatus using light. In addition, since the fabric itself is a stable screen without surface deformation, it is possible to have a rectangular frame product by attaching it to a rigid plate.

Although the present invention has been described in connection with the above-mentioned preferred embodiment, it is possible to apply variously to a family of light-forming shapes without departing from the spirit and scope of the invention.

1 is an explanatory view of a cross-sectional structure of the present invention.

FIG. 2 is a diagram illustrating the configuration of FIG. 1.

* Names of symbols for main parts of the drawings

 1: Engineering plastic film (PET-polyethylene terephthalate)

2: Soft PVC (PASTE RESIN or STRAIGHT RESIN)

3: Screen without curling with excellent smoothness

4: beam projector

5: Observer point of view where the beam projector projects

Claims (1)

In the projection screen, the engineering plastic film (PET-polyethylene terephthalate) and the flexible PVC layer are bonded by a heat bonding process rather than by an adhesive, so that no side curling or central bending occurs. Projection screen with excellent smoothness