KR20160121317A

KR20160121317A - High gain screen

Info

Publication number: KR20160121317A
Application number: KR1020150051181A
Authority: KR
Inventors: 김영갑
Original assignee: 김영갑
Priority date: 2015-04-10
Filing date: 2015-04-10
Publication date: 2016-10-19
Also published as: KR101690410B1

Abstract

A high brightness screen having a function of removing hot spots and preventing surface contamination according to the present invention includes a screen surface layer 100 forming a number of concave and convex portions 110 on the entire front surface and reflecting the light irradiated to the front surface to the front side; A fine bubble 120 formed inside the screen surface layer 100; And a board-like stiffener 200 attached to the rear surface of the screen surface layer 100 and reinforcing the smoothness and strength of the screen surface layer 100.
The fine bubbles 120 are filled with an inert gas to prevent the screen from burning in the event of a fire and are attached to the rear surface of the stiffener 200 so as to prevent the bending of the stiffener 200 A decolorizable ink coating layer (410) further comprising a finish layer (300) provided on the entire surface of the screen surface layer (100) and discolored by heat; And a heat ray device 420 attached to the rear surface of the stiffener to transmit heat to the screen surface layer 100 to control discoloration of the discoloration ink coating layer 410.
Accordingly, it is possible to eliminate the hot spot phenomenon in which the light is intensively reflected to the center of the screen by the minute unevenness 110 of the screen surface layer 100 as described above, to reduce the deposition of contaminants on the surface, It is possible to reduce the amount of raw materials required for manufacturing the screen surface layer 100 by the minute bubbles 120 in the micro bubbles 100 and to provide an effect of preventing the screen from burning in the event of a fire by filling the minute bubbles 120 with inert gas .

Description

High-gain screen with hot spot removal and surface contamination protection {High gain screen}

The present invention relates to a screen for irradiating an image of a projector such as a high-brightness projector, and relates to a high-brightness screen having hot spot removal and surface contamination prevention function.

BACKGROUND ART [0002] Conventional high-brightness projector screens are roughly classified into a front screen and a rear screen.

While the front screen is to project an image such as a screen of a movie theater or a projector screen to see the reflected image while the rear screen sees an image that is projected from the back side of the screen such as a TV picture tube or a billboard .

The quality of the screen has been determined according to how clean and clean the surface of the image screen is, as the front screen uses the reflectance of light.

Typical products on the market include matte screens (which are made up of natural rubber materials mixed with white non-solvent oil inks), glass bead screens (with glass cloth adhered to the matte screen fabric There are dozens of glass screens per company, depending on the glass powder and adhesive technology), ultra-bead screens (screens made of fine glass powder attached to a white matte soft rubber backing made of polypropylene (PP)), PET screens (PET (Non-greasy white or gray ink, non-greasy white paint or gray paint sprayed on the substrate or coated with a laminating technique), matte aluminum material silver screen (aluminum powder or aluminum foil to provide maximum light reflectance Screen), etc. The type of screen is manufactured based on matte.

It is possible to distinguish between gray series based on white color and a little black color on white, and silver (silver) series for maximizing light reflectance. Using these colors, .

Here, the light reflectance is usually expressed in terms of a gain, which is a standard unit commonly used in the screen industry (the pure white reflectance is 1Gain).

For example, the above-mentioned mat screen is 1Gain, glass bead is 1.5Gain, ultra bead is 2.5Gain, PET screen is 3Gain, and silver screen is 4-20Gain.

Also, the front screen is typically composed of a backing, which is a backing, and a screen reflecting material.

Firstly, various kinds of plates such as a film fabric made of a soft rubber material, a PET film fabric, and an FRP plate can be used as the support.

The screen reflective material is present on the surface of the support or in admixture with the support, and is provided with a non-greasy ink (typically white, gray inks mixed with white and black) and oil based paints Black mixed gray), glass powder, matte aluminum powder, and matte aluminum foil.

The production of such a front screen is achieved by mixing the screen reflective material with the support or by applying, spraying or coating the surface to the support.

However, the conventional front screen manufactured in this way has a problem in that the surface scattering effect is not so large that the hotspot phenomenon which concentrates the light strongly at the center of the screen and lowers the uniformity of the light is generated, .

KR 10-2006-0086187 KR 10-2005-0013433 KR 20-2006-0018063

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems of the prior art.

More specifically, it is an object of the present invention to provide a display device capable of eliminating a hotspot, which is a problem in a high-brightness projector image projection, to provide a brighter and clearer image to viewers, and to prevent contamination caused by a minute concavo- To provide a high-brightness screen that can be used.

In order to accomplish the above object, a high-brightness screen having a function of removing hot spots and preventing surface contamination according to the present invention comprises a plurality of fine concavities and convexities 110 formed on the entire front surface and a screen surface layer 100); A fine bubble 120 formed inside the screen surface layer 100; And a board-like stiffener 200 attached to the rear surface of the screen surface layer 100 and reinforcing the smoothness and strength of the screen surface layer 100.

The fine bubbles 120 are filled with an inert gas to prevent the screen from burning in the event of a fire and are attached to the rear surface of the stiffener 200 so as to prevent the bending of the stiffener 200 A decolorizable ink coating layer (410) further comprising a finish layer (300) provided on the entire surface of the screen surface layer (100) and discolored by heat; And a heat ray device 420 attached to the rear surface of the stiffener to transmit heat to the screen surface layer 100 to control discoloration of the discoloration ink coating layer 410.

As described above, the present invention eliminates the hot spot phenomenon in which light is intensely reflected to the center of the screen by the fine unevenness 110 of the screen surface layer 100 as described above, reduces the deposition of contaminants on the surface, It is possible to reduce the amount of raw materials required for manufacturing the screen surface layer 100 by the minute bubbles 120 in the same screen surface layer 100 and to prevent the burning of the screen in the event of a fire by filling the minute bubbles 120 with inert gas Effect.

1 is a block diagram of a high-brightness screen having a hot spot removal function and a surface contamination prevention function according to an embodiment of the present invention;
2 is a diagram illustrating an example of a discolored ink operation of a high luminance screen having a hot spot removal function and a surface contamination prevention function according to an embodiment of the present invention;

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited by the scope of the present invention.

Referring to FIG. 1, a high-brightness screen having a function of removing hot spots and preventing surface contamination according to the present invention includes a screen surface layer (not shown) having a plurality of concave and convex portions 110 formed on the entire front surface and reflecting front- 100); A fine bubble 120 formed inside the screen surface layer 100; And a board-like stiffener 200 attached to the rear surface of the screen surface layer 100 and reinforcing the smoothness and strength of the screen surface layer 100.

Specifically, in the case of the screen surface layer 100 in which a plurality of relief microstructures 110 are formed on the surface, contaminants are prevented from being deposited due to the formation of the fine irregularities 110 on the surface, that is, So that the deposition can be prevented and easily removed.

In addition, in the case of the minute unevenness 110, since the shape of the embossed projections has a convexity shape, such a shape has the effect of increasing the rate of light reflection that reflects the light irradiated to the projector, can do.

The screen surface layer 100 is formed with a number of minute bubbles 120 inside the screen surface layer 100. The minute bubbles 120 can reduce the consumption of the raw material of the screen surface layer 100 by about 50% The inert gas is filled in the micro bubbles 120 so that the surface layer 100 of the screen is burned in the event of a fire so that the internal micro bubbles 120 are exposed to the outside and the inside of the micro bubbles 120 is inert The gas is released to the outside, and the flame is removed, thereby preventing the fire from spreading.

The screen surface layer 100 may be formed by coating a reflective layer 130 coated with aluminum powder on the rear surface and then bonding the surface layer 100 with the reinforcing material 200 to increase the reflectance of light transmitted through the screen surface layer 100 It is possible.

Next, in the case of the reinforcing material 200 attached to the rear surface of the screen surface layer 100, a polyester resin material is generally used as a board shape reinforcing the smoothness and strength of the screen surface layer 100, In order to further increase the mechanical strength, a reinforcing material such as glass fiber and a filler may be mixed. In particular, it is preferable to increase the strength by mixing hard materials of a certain size such as stone powder.

Since the reinforcing material 200 may be warped due to the characteristics of the material of the reinforcing material 200, the reinforcing material 200 may be attached to the rear surface of the reinforcing material 200 to provide a tensile force to prevent the reinforcing material 200 from being warped. ). &Lt; / RTI >

Next, referring to FIG. 2, a decolorizable ink coating layer 410 coated on the entire surface of the screen surface layer 100 and discolored by heat; And a heat ray device 420 attached to the rear surface of the reinforcing material to transmit heat to the screen surface layer 100 in order to control discoloration of the discoloration ink coating layer 410. In view of the above, A logo of a film company or a company logo or various images is displayed on the surface of a white background so that aesthetic utilization of the film can be improved by applying a discoloration ink to the screen surface layer 100 according to a logo of a film company or a company or various images, By heating the screen surface layer 100, the discolored ink is discolored and various images can be displayed on the white screen.

At this time, in the case of the heat ray device 420, it is preferable that the heat ray device 420 is locally mounted so that only the portion coated with the discolored ink can be heated, thereby saving cost and energy.

Accordingly, it is possible to eliminate the hot spot phenomenon in which the light is intensively reflected to the center of the screen by the minute unevenness 110 of the screen surface layer 100 as described above, to reduce the deposition of contaminants on the surface, It is possible to reduce the amount of raw materials necessary for manufacturing the screen surface layer 100 by the minute bubbles 120 inside of the fine bubbles 120 and prevent the burning of the screen at the time of a fire by filling the minute bubbles 120 with an inert gas, (410) and the heat ray device (420), it is possible to display a logo of a film company, a company logo, or a variety of images on a simple white-based screen when not shown, thereby enhancing aesthetics.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

100: Screen surface layer
200: Stiffener
300: finish layer

Claims

A screen surface layer 100 having a plurality of concave and convex projections 110 formed on the whole front surface and reflecting the light radiated to the front surface to the front side;
A fine bubble 120 formed inside the screen surface layer 100;
And a board-shaped stiffener (200) attached to a rear surface of the screen surface layer (100) and reinforcing the smoothness and strength of the screen surface layer (100).

The method according to claim 1,
Wherein the microbubbles (120) are filled with an inert gas to prevent the screen from burning in the event of a fire.

The method according to claim 1,
Further comprising a finishing layer (300) attached to a rear surface of the stiffener (200) and providing a tensile force to prevent distortion of the stiffener (200).

The method according to claim 1,
A decolorizable ink coating layer 410 coated on the entire surface of the screen surface layer 100 and discolored by heat;
And a heat ray device (420) attached to a rear surface of the reinforcing material to transmit heat to the screen surface layer (100) to control discoloration of the discoloration ink coating layer (410).

The method according to claim 1,
Wherein the screen surface layer (100) is bonded to the reinforcing material (200) after coating a reflective layer (130) coated with aluminum powder on the rear surface.