KR101539248B1 - Image Projected by the Projector and Writing Possible Screen Glass Board - Google Patents

Abstract

The present invention relates to a screen glass board capable of projecting an image by a projector and writing and, more specifically, relates to a screen glass board capable of projecting an image by a projector and writing, which does not cause glare due to reflection by comprising a rear plate formed as a screen layer is attached thereto and an uneven surface formed on the front and rear surfaces of an anti-reflective glass plate in close contact with the screen layer by facing the screen layer, provides a clear screen without blurring of the screen and distortion of a color due to the difference in incidence angles of image projection at close range, and can be freely written thereon.

Description

{Image Projected by the Projection and Writing Possible Screen Glass Board}

The present invention relates to a screen glass board capable of projecting an image of a projector, and more particularly, to a screen glass board having a screen layer formed by attaching to a thick plate and an uneven surface formed on a front surface and a rear surface of the non- The present invention relates to a screen glass board capable of projecting an image of a projector that can be projected freely, as well as providing a clear screen by preventing blurring of a screen or distortion of color due to a difference in incident angle.

Recently, lectures at schools and academies, presentations at government offices and companies have been actively conducted by using a screen glass board capable of simultaneously performing a free writing function on the glass surface and a function of projecting the image on the screen layer.

In addition, studies on the prevention of glare caused by reflection on the glass surface, studies on improvement of screen blurring and color distortion, and the like are being actively researched.

Korean Patent No. 10-1024302 ("a glass plate for both a projection screen and a manufacturing method thereof, ", Mar. 26, 2011) is provided with a low reflective uneven surface for a planer on the front surface of a glass substrate, A glass board which can be used not only as a writing board but also as a projection screen has been proposed.

However, the above-mentioned glass blackboard has a problem in that it is used in a place where it is long in the longitudinal direction or in a place where a certain distance between the projector and the screen is maintained, There is a problem that the difference in vertical and horizontal contrast occurs in the projection of a near-field image using a projector or the like, blurring of the screen or distortion of color is caused, glare caused by a hot-spot phenomenon projected by the projector light source, There is a problem that it is not possible to project a clear and high-quality image of the top, bottom, left and right sides of the screen.

Korean Patent No. 10-1170009 ("An antireflection glass screen combined with a blackboard for projecting a near-field image, and a method for manufacturing the same, Jul. 25, 2012) And an airtight adhesive layer which is located on the rim of the screen layer and joins the two together, wherein the airtight adhesive layer is disposed between the non-reflective glass and the screen layer which are not joined by the airtight adhesive, An anti-reflective glass screen with a blackboard for projecting a near-field image with a vacuum in a vacuum state has been proposed.

However, the above-described antireflective glass screen combined with a blackboard has a complicated manufacturing and installation method for providing a vacuum layer, and it is difficult to manage the adhesive layer for providing and holding the vacuum layer. need.

Korean Patent No. 10-1024302 ("Glass blackboard combined with a projection screen and method for manufacturing the same, March 23, 2011) Korean Patent No. 10-1170009 ("Anti-reflective glass screen combined with blackboard for close-up image projection and its manufacturing method, 2012.07.25.)

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide an image display apparatus and a display method thereof capable of being freely written by a user and suppressing glare by irregularly reflecting reflected light generated by illumination, The present invention provides a screen glass board combined with a projector capable of projecting images projected comfortably without fatigue of eyes and projection images of a projector.

In particular, it is an object of the present invention to provide a near-field image projection apparatus which can prevent scattering and diffusion of light irradiated from a projector and reflected light projected on a screen layer to diffuse and diffuse the screen brightness and color, And a screen glass board that can project a projector image that can view a clear image even at a right angle of more than 160 degrees by reducing the square of a portion that is not visible when viewing from left and right sides .

Another object of the present invention is to provide a screen glass board capable of projecting an image of a projector which can be easily manufactured and installed and can realize a clear large screen without distorting and blurring the color of the connection part even through a parallel connection selected by a user .

A screen glass board for combined use with a projector capable of projecting a projector image according to the present invention includes an anti-reflection sheet glass having a first uneven surface formed on a front surface thereof and a second uneven surface formed on a rear surface thereof; A screen layer disposed to face the rear surface of the anti-reflection plate glass and capable of projecting an image by irradiating light; And a back plate attached to the screen layer to support the anti-reflection sheet glass and the screen layer.

In particular, the screen glass board for combined use with a projector for projecting an image of the projector includes a cushioning portion for closely contacting the non-reflecting glass sheet and a portion facing the screen layer.

The surface roughness of the second uneven surface is formed to be 1 to 4 times as rough as the surface roughness of the first uneven surface.

인 것을 특징으로 한다.The surface roughness of the second uneven surface is preferably 0.05 to 40

.

In addition, the screen layer is formed of any one selected from a color film, a glass fiber, and a high brightness screen fabric to which a matte surface treatment technology is applied.

In addition, the first irregular surface and the second irregular surface are subjected to an uneven treatment with an acidic etching solution.

In addition, the screen glass board for combined use with a projector capable of projecting the image of the projector further comprises a steel plate layer interposed between the screen layer and the thick plate.

The screen glass board capable of projecting an image of a projector according to the present invention can be freely printed in a short distance projection using a conventional projector as well as a short-throw projector, and diffusely reflects light generated by illumination, It is advantageous that the lecturer and the viewer can watch the contents of the projected image and the written plan without comfortable glare and fatigue.

Particularly, the screen glass board combined with a projector capable of projecting an image according to the present invention diffuses and diffuses the light irradiated from the projector and the reflected light projected on the screen layer in the near-field projection, Brightness and color are prevented from distorting to realize bright image without any variation in the top, bottom, left and right sides of the image, and a sharp image can be viewed from above the 160 degrees angle by reducing the square of the invisible part when viewing from left and right side. .

In addition, the screen glass board, which is capable of projecting images of a projector according to the present invention, forms fine voids between the screen layer and the non-reflective irregular surface facing the screen glass in a near-field projection, There is an advantage of increasing the resolution when projecting an image.

In addition, the screen glass board capable of projecting an image of a projector according to the present invention has an advantage of easy attachment and detachment of a magnet material through an iron plate layer between a screen layer and a thick plate, thereby providing an efficient working environment for presentation and lecture .

In addition, it is possible to easily manufacture and install a combined screen glass board capable of projecting images of a projector according to the present invention, and it is also possible to realize a clear large screen free from color distortion and blurring at a connection site through a user's selected parallel connection , The light irradiated from the projector and the light projected and reflected on the screen layer are scattered through the irregular surface formed on the rear surface of the non-reflecting glass plate, so that there is no glare even on the large screen and a clear image having no deviation in vertical and horizontal directions is projected.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram illustrating a combined screen glass board for projection of projected images according to the present invention. Fig.
FIG. 2 is another drawing showing a combined screen glass board capable of projection image projection according to the present invention. FIG.
FIG. 3 is a diagram illustrating a combined screen glass board capable of projection image projection according to the first embodiment of the present invention. FIG.
4 is a view for explaining an anti-reflection plate glass of a screen glass board for both of a projector and a projector capable of projecting an image according to the present invention.
5 is a diagram illustrating a combined screen glass board capable of projection image projection according to the second embodiment of the present invention.
6 is a view showing an embodiment of parallel connection of a screen glass beam for pancake screening capable of projecting a projector image according to the present invention.

Hereinafter, a screen glass board for combined use with a projector capable of projecting an image according to the present invention having the above-described features will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed in a conventional or dictionary sense, and the inventor should appropriately define the concept of the term to describe its invention in the best possible way The present invention should be construed in accordance with the spirit and concept of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

FIG. 1 is a view showing a screen glass board for both of a projector and a projector capable of projecting an image according to the present invention, FIG. 2 is another drawing showing a screen glass board for both of a projector and a projector, 4 is a view for explaining an anti-reflection plate glass of a combined screen glass board capable of projecting an image of a projector according to an embodiment of the present invention, FIG. 5 is a diagram illustrating a screen glass board for a projection screen projector capable of projecting an image according to the second embodiment of the present invention, FIG. 6 is a view illustrating a parallel connection of a screen glass beam for pancake scanning, Fig.

1 and 2, a glass screen board for use with a projector according to the present invention is provided with a thick plate 300, and a screen layer 200 is formed in close contact with the thick plate 300 And an antireflection plate glass 100 is disposed on the entire surface of the screen layer 200.

The thick plate 300 is formed by closely adhering the screen layer 200 to not only support the screen layer 200 but also to prevent and support the anti-reflection plate glass 100.

In this case, the thick plate 300 may be made of wood, glass, metal, or fiber reinforced plastic. Among them, the glass has the same bending stress as the anti-reflection plate glass 100, but has a heavy weight. It is desirable to design a lightweight material so as to be equal to the bending stress of the non-reflecting glass plate 100, so that various embodiments of materials are possible.

It is recommended that the screen layer 200 be formed of a white-based color as well as a matte surface treatment technique. However, in addition to the white-based layer, The screen layer 200 may be formed of any one selected from a color film, a glass fiber, and a high-brightness screen fabric to which a matte surface treatment technique is applied, in addition to a white film film fabric, as a matter of course to be.

In addition, since the screen layer 200 can be processed with a dark line on the surface, it is possible for the user to make convenient writing, and it is possible to form a schedule and a variety of tables so that a wide range of work environments There is a feature that can be created.

1, a screen glass board capable of projecting an image of a projector according to the present invention can be made of an anti-reflection plate glass 100, a screen layer 200 and a thick plate 300, The frame 10 may be further formed.

The non-reflecting glass 100 is inserted between the frame 10 and the thick plate 300 to which the screen layer 200 is attached and the frame 10 and the thick plate 300 are fixed It is possible to form a combined screen glass board capable of projecting an image of a projector.

However, in addition to the above-described method, the method of manufacturing using the frame can be variously modified, and thus the method is not limited to the above-described method.

3 to 4, the anti-reflection plate glass 100 of the combined screen glass board capable of projecting an image of a projector according to the present invention is formed of a glass material, And the projected image is formed on the back surface of the non-reflecting glass plate 100, so that the user can perform the desired writing on the front surface.

Particularly, a first irregular surface 110 is formed on the front surface of the non-reflecting glass plate 100, and a second uneven surface 120 is formed on the rear surface of the non-reflecting glass plate 100.

At this time, the first uneven surface 110 formed on the front surface of the non-reflecting glass plate 100 has fine uneven surface, so that external light due to illumination or the like can be irregularly reflected.

That is, the external light by the illumination is reflected and causes the viewer to glare. The minute unevenness of the first uneven surface diffuses the external light irregularly, thereby preventing the glare which is caused by the reflected light, Allowing the user to view comfortably projected images and written content without eye fatigue.

The irregularities of the second uneven surface 120 formed on the rear surface of the non-reflecting glass plate 100 can scatter light reflected from the screen layer 200 and light radiated from the near-field projector to project a clear and clear image And it controls the diffraction of light to enhance the resolution when projecting a near-field image.

In other words, the near-field image projection has a large difference in incident angle along the top, bottom, left, and right sides of the screen. This causes a hot-spot to be generated so that only a portion having a small incident angle is brightly displayed. It is difficult to prevent this phenomenon.

That is, the irregularities of the second uneven surface 120 scatter and diffuse the light irradiated from the projector and the light reflected and projected on the screen layer 200, thereby reducing the difference in brightness and sharpness of the screen according to the difference in incident angle Thereby suppressing the occurrence of hot spots. This enables a clear projection of the entire screen, thereby making it possible to compensate for problems in the projection of near-field images.

In addition, since the second uneven surface 120 is formed, minute voids exist between the non-reflective glass plate 100 and the screen layer 200 which are bonded to each other, and the voids control the diffraction of light It works to increase the resolution when projecting near-field images.

The first irregular surface 110 and the second irregular surface 120 of the non-reflecting glass plate 100 are formed using an acid etching method of performing an irregular surface treatment with an acidic etching solution such as hydrofluoric acid.

로 형성되는 것이 권장되나, 0.05 내지 40

의 범위로도 형성 가능하며, 상기 제1요철면(110)의 거칠기는 0.05 내지 10

로서, 상기 제2요철(120)의 거칠기는 상기 제1요철면(110)의 거칠기보다 동일하거나 크게 형성된다.At this time, the roughness of the second uneven surface 120 is 0.5 to 20

, But it is preferably 0.05 to 40

, And the roughness of the first uneven surface 110 may be in the range of 0.05 to 10

, And the roughness of the second irregularities (120) is equal to or larger than the roughness of the first irregularities (110).

That is, it is recommended that the roughness of the second uneven surface 120 is formed to be roughly 1 to 4 times as rough as the roughness of the first uneven surface 110, but the roughness may vary depending on the working environment and the purpose of manufacture Of course, it is possible to use numerical values.

In other words, since the first irregular surface 110 should be able to be freely formed on the surface in addition to the diffuse reflection function for preventing the glare phenomenon, if the roughness is large, the diffuse reflection effect for preventing the glare becomes large, In contrast, when the roughness is too low, the effect of the diffuse reflection is reduced, thereby increasing the fatigue of the eyes by the lecturer due to the glare phenomenon. Therefore, the irregular surface having the roughness within the proper range capable of both the diffuse reflection function and the writing function is formed .

On the other hand, since the second uneven surface 120 formed on the rear surface of the non-reflecting glass plate 100 does not need the function of a planer, in order to improve scattering and diffusion of light and to form a gap, 120 are preferably equal to or larger than the roughness of the first irregular surface 110.

≪ Embodiment 1 of combined screen glass board capable of projector projection according to the present invention &

As shown in FIG. 3, the screen glass board capable of projecting an image of a projector according to the present invention includes a non-reflecting glass plate 100 and a thick plate 300 to which the screen layer 200 is attached, And a cushioning portion (20).

That is, in the method of manufacturing a combined screen glass board capable of projecting an image of a projector according to the present invention, the screen layer 200 is attached to the thick plate 300 and an anti-reflection plate glass 100 is formed on the entire surface of the screen layer 200 The screen glass board having a function of projecting an image of a projector according to the present invention can be fixed using a fixture, a fixing method using a frame 10, and a fixing method using a prefabricated frame at a place of installation So that it can be closely contacted with the buffer part 20.

In other words, unlike the conventional invention, a screen glass board capable of projecting an image of a projector according to the present invention does not need to be airtightly sealed for a vacuum space, so that the installation method using a fixture, the installation method using a frame, And the buffering part 20 precisely adheres the anti-reflection plate glass 100 and the thick plate 300 to each other.

It is needless to say that the cushioning portion 20 may be made of foamed styrofoam, plywood or the like.

Needless to say, it is needless to say that the screen glass board for combined use with a projector capable of projecting the projector image according to the present invention can be variously installed, such as a method using an adhesive, in addition to the fixing using the frame-

≪ Second Embodiment of Combined Screen Glass Board for Projection Image Projection According to the Present Invention >

As shown in FIG. 5, the screen glass board combined with a projector capable of projecting an image of the present invention further includes a steel plate layer 30 interposed between the screen layer 200 and the thick plate 300 .

The screen glass sash according to the present invention is provided with the iron plate layer 30 to provide a display fixture and a magnetic clip of various shapes having a magnet function so that a presentation at a company and a lecture at a school It is possible to perform an efficient work.

In addition, there is an advantage of facilitating the attachment of the surface recognition type copyboard sensor.

As shown in FIG. 6, the combined screen glass board capable of projector image projection according to the present invention can be used through at least two selected parallel connections when it is necessary to implement a large screen image.

That is, unlike the conventional technique, since it is not necessary to apply a vacuum layer, it is easy to manufacture and install, and since only the boundary line of the anti-reflection plate glass 100 is closely attached to the selected parallel connection, And a dead space in which sharpness deteriorates does not occur.

In other words, when the image is projected on a screen glass board that is connected in parallel for the purpose of implementing a large screen by suppressing the occurrence of dead space at the connection site due to the structure connected in parallel, There is an advantage that it can provide a clear screen evenly without distortion.

The second uneven surface 120 formed on the rear surface of the non-reflecting glass plate 100 scatters and diffuses the light irradiated from the projector and the light reflected on the screen layer 200, It is possible to realize a clear large-sized screen free from vertical, horizontal, and vertical deviations of the screen.

100: Non-reflecting plate glass
110: first uneven surface
120: second uneven surface
200: Screen layer
300: Plates
10: frame
20: buffer
30: iron plate layer

Claims (7)

An unreflective plate glass (100) having a first uneven surface (110) diffusing light on its front surface and a second uneven surface (120) scattering and diffusing light on the rear surface;
A screen layer (200) arranged to face the second uneven surface (120) on the rear surface of the non-reflecting glass sheet (100) to form a gap and capable of projecting an image by irradiating light;
And a thick plate 300 to which the screen layer 200 is attached to support the anti-reflection plate glass 100 and the screen layer 200,
Wherein the surface roughness of the second uneven surface (120) is 1 to 4 times rougher than the surface roughness of the first uneven surface (110).
The method according to claim 1,
A screen glass board for both of the projector and projector capable of projecting the projector image
And a cushioning portion (20) for bringing the non-reflecting glass plate (100) and the screen layer (200) facing each other into close contact with each other.
delete The method according to claim 1,
The surface roughness of the second uneven surface 120 is
0.05 to 40

Wherein the projection screen is provided with a projection screen.
The method according to claim 1,
The screen layer (200)
Wherein the screen glass substrate is formed of any one selected from a color film, a glass fiber, and a high brightness screen fabric to which a matte surface treatment technology is applied.
The method according to claim 1,
The first irregular surface 110 and the second irregular surface 120
Wherein the substrate is projected and unevenly processed with an acidic etching solution.
The method according to claim 1,
A screen glass board for both of the projector and projector capable of projecting the projector image
The screen glass board according to claim 1, further comprising an iron plate layer (30) interposed between the screen layer (200) and the thick plate (300).

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