KR101637992B1 - Manufacturing method of hologram - Google Patents

Abstract

The present invention relates to a method for manufacturing a hologram and a display panel having the hologram, in which a film duplicated with the hologram is attached on the front side of the display panel, and a user can view an image displayed on the display panel regardless of the film attached on the front surface of the display panel. The method for manufacturing a hologram includes the steps of: producing a first beam which is an object beam, and a second beam which is a reference beam, such that a beam producing part produces a hologram wherein users can visually see the hologram when a display panel is turned off and cannot visually see the hologram when the display panel is turned on to display a certain image; producing a virtual image hologram due to an interference phenomenon of the first and second beams on the first photosensitive plate by entering the first beam into a first photosensitive plate through a diffusion lens, a diffraction plate, and a design panel, sequentially, and by entering the second beam into the first photosensitive plate in an angle range of 25-35° with respect to the first photosensitive plate; and producing a real image hologram due to the interference phenomenon of the first and second beams on the second photosensitive plate by entering the first beam into the first photosensitive plate which is produced the virtual image hologram, through the diffusion lens and the second photosensitive plate, and by entering the second beam into a first photosensitive plate in an angle range of 25-35° with respect to the first photosensitive plate. The diffusion lens, the diffraction plate, the design panel and the second photosensitive plate are inclined in an angle range of 10-20° with respect to the first photosensitive plate.

Description

Manufacturing method of hologram < RTI ID = 0.0 >

The present invention relates to a method of manufacturing a hologram for manufacturing a hologram. More particularly, the present invention relates to a method of manufacturing a hologram in which a user can visually see the display panel when the display panel is not lit, and when the display panel is lit to display a predetermined image, will be.

In general, a hologram is a stereoscopic image formed of a three-dimensional image, and is a medium on which interference fringes representing stereoscopic images are recorded using the principle of holography.

A conventional technique for manufacturing such a hologram is disclosed in Korean Patent Laid-Open Publication No. 10-2004-0018607 (published on Mar. 04, 2004).

According to these conventional techniques, light output from a single light source is separated into first light, which is water-drawing light, and second light, which is reference light, and after the first light passes through the panel on which the object design is formed, So that the second light is incident on the photosensitive material.

Then, in the photosensitive material, an interference phenomenon occurs between the first light and the second light having passed through the design of the object, so that a hologram in the form of interference fringes is generated in the photosensitive material.

However, the hologram manufactured according to the above-described conventional technique has a disadvantage in that, when attached to the front surface of a display panel such as an LED (Light Emitting Display) panel or an OLED (Organic Light Emitting Diode) panel for displaying a predetermined image, Regardless of whether or not it is displayed.

Therefore, when the display panel is operated and a predetermined image is displayed, there is a problem that the hologram hinders the user from visually confirming the image.

Korean Patent Publication No. 10-2004-0018607 (published on March 4, 2004)

The present invention provides a method of manufacturing a hologram in which a hologram is displayed when the display panel is not lit, and a hologram is not displayed when the display panel is lit.

Further, the present invention is not limited to the above-mentioned problems, and other problems that are not mentioned can be clearly understood by those skilled in the art from the following description. It can be understood.

Method of producing the hologram of the present invention includes the steps of generating an object crazy first light and the reference light crazy 2-1 and the second-second light to produce a photo-generated hologram portion and the first light diffusing lens, And the second plate and the design panel are sequentially incident on the first photosensitive plate, and the 2-1 light and the 2-2 light are incident on the first photosensitive plate in an angular range of 25 to 35 [deg.] To form the first photosensitive A step of causing a hologram of a virtual image due to an interference phenomenon of the first light and the second light to be generated in the plate by using the diffusion lens and the second photosensitive plate; And the 2-1 light and the 2-2 light are incident on the first photosensitive plate at an angular range of 25 to 35 degrees so that the first light and the second light from the second photosensitive plate And the diffusing lens, the diffraction plate, the design panel, and the second photosensitive plate are arranged in a range of 10 to 20 DEG with respect to the first photosensitive plate, The angular range of the angular range can be inclined.

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According to the method of manufacturing a hologram of the present invention, when the manufactured hologram is copied on a film and attached to the front surface of the display panel, when the display panel is turned off and a predetermined image is not displayed, the user can visually see the hologram . When the display panel is illuminated to display a predetermined image, if there is external natural light, the user can view the hologram only at an angle different from an angle at which the user views the predetermined image. If there is no external light, It is not displayed.

Therefore, even if a hologram replicated film is attached to the front surface of the display panel, there is an effect that the user does not have any effect on viewing the image displayed on the display panel.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which like elements are designated by like reference numerals.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a configuration of a manufacturing apparatus for generating a virtual image hologram according to a manufacturing method of the present invention;
2 is a schematic view showing a configuration of a manufacturing apparatus for producing a real hologram according to the manufacturing method of the present invention, and Fig.
FIGS. 3A to 3C are views for explaining the operation of the hologram when the hologram manufactured according to the manufacturing method of the present invention is copied on a transparent film and attached to a display panel.

The following detailed description is merely an example, and is merely an example of the present invention. Further, the principles and concepts of the present invention are provided for the purpose of being most useful and readily explaining.

Accordingly, it is not intended to provide a more detailed structure than is necessary for a basic understanding of the present invention, but it should be understood by those skilled in the art that various forms that can be practiced in the present invention are illustrated in the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a configuration of a manufacturing apparatus for producing a hologram of a virtual image according to a manufacturing method of the present invention. Fig. Reference numeral 100 denotes a light providing unit for providing light for manufacturing a hologram, and 200, a virtual image hologram generating unit for generating a virtual hologram using light provided by the light providing unit 100.

The optical distributor 100 includes a light source 102, a plurality of first reflection mirrors 104, a first optical splitter 106 and a second optical splitter 108, a plurality of second reflection mirrors A plurality of polarization lenses 114a and 114b, a plurality of diffusion lenses 116a and 116b, a plurality of Climate mirrors 118a and 118b, a plurality of slits And may include mirrors 120a and 120b.

The light source 102 generates light for generating a hologram. For example, the light source 102 includes a laser diode, and generates and outputs a laser when generating a hologram.

The light output from the light source 102 is reflected through the plurality of first reflection mirrors 104 and is changed in path so as to be incident on the first optical isolator 106.

Although the number of the first reflection mirrors 104 is three, the number of the plurality of first reflection mirrors 104 may be different from the number of the light sources 102 and the first optical splitters 104 106). For example, when the light output from the light source 102 can be directly incident on the optical isolator 106, the plurality of first reflection mirrors 104 may not be provided.

However, when the light emitted from the light source 102 is not directly incident on the first optical isolator 106, the light emitted from the light source 102 may be incident on the first optical isolator 106 A plurality of reflection mirrors 104 may be provided.

The first optical isolator 106 separates one light incident through the plurality of first reflection mirrors 104 into object light, which is first light, and reference light, which is second light.

For example, the first optical isolator 106 separates incident light into first light, which is object light in a direction orthogonal to the first light, and second light, which is a reference light, in a direction in which the light is linear.

The first light, which is the object light separated by the first optical isolator 106, is reflected by the plurality of second reflection mirrors 110 and is incident on the virtual image hologram generating unit 200.

Here, the number of the plurality of second reflection lenses 110 may be determined by the direction of the first light separated by the first optical isolator 104 and the direction in which the first light enters the virtual image hologram generating unit 200 Can be varied.

The second light, which is the reference light separated by the first optical isolator 106, is incident on the second optical isolator 108 and separated into the 2-1 light and the 2-2 light.

The second -1 light separated by the second optical isolator 108 is reflected by the third reflection mirror 112 and is converted so as to be parallel to the 2-2 light.

The 2-1 light reflected by the third reflecting mirror 112 and the 2-2 light separated by the second optical splitter 108 pass through the polarizing lenses 114a and 114b, . For example, although the 2-1 light and the 2-2 light have a circular cross-section, the light intensity differs depending on each position.

The second-1 light and the second-2 light are polarized while passing through the polarizing lenses 114a and 114b, respectively, so that the second-first light of the circular section having the same intensity and the second- Light.

The 2-1 light and the 2-2 light having passed through the polarizing lenses 114a and 114b pass through the diffusion lenses 116a and 116b, respectively, And the second-2 light.

The 2-1 light and the 2-2 light having passed through the diffusing lenses 116a and 116b are reflected by the clit mirrors 118a and 118b and reflected by the slit mirrors 120a and 120b And is then incident on the virtual image hologram generating unit 200.

That is, the optical adder 100 generates the first light, which is object light, and the 2-1 light and the 2-2 light, which are reference light, to generate the hologram, and provides the generated light to the virtual image hologram generating unit 200 .

The virtual image hologram generating unit 200 includes a diffusion lens 202, a diffraction plate 204, a design panel 206 on which a design of an object to be generated hologram is displayed, And may include a photosensitive plate 208.

Here, instead of the design panel 206, it is also possible to place an actual object to be generated with the hologram.

The first light incident from the light supplier 100 is diffused through the diffuser lens 202 and is uniformly dispersed through the diffuser plate 204 and then passes through the design panel 206 to be incident on the first photosensitive plate 208, respectively.

The 2-1 light and the 2-2 light incident from the light supplier 100 are incident on the first photosensitive plate 208.

The diffusion lens 202, the sectional plate 204 and the design panel 206 are inclined by a predetermined angle, for example, about 10 to 20 degrees with respect to the first photosensitive plate 208, Respectively.

The 2-1 light and the 2-2 light are incident on the first photosensitive plate 208 at an angle of about 25 to 35 with respect to the first photosensitive plate 208 by a predetermined angle.

Then, an interference phenomenon of the first light, the second light 2-2, and the second light 2-2 is generated in the photosensitive resistive material applied to the first photosensitive plate 208, The design of the object is created as a virtual hologram.

That is, the virtual image hologram generating unit 200 generates the virtual image holograms in a state in which the diffusion lens 202, the diffraction plate 204 and the design panel 206 are tilted by about 10 to 20 degrees with respect to the first photosensitive plate 208 The first light provided by the optical data providing unit 100 is diffused through the diffusing lens 202 and is uniformly dispersed through the diffusing plate 204 and then passes through the design panel 206 to form a first photosensitive And the second-1 light and the second-2 light are incident on the first photosensitive plate 208 at a slope of about 25 to 35 degrees. In the first photosensitive plate 208, The design of the object displayed on the design panel 206 is generated as a virtual image of the hologram with the interference of the first light and the second -2 light and the second 2 light.

Fig. 2 is a schematic view showing a configuration of a manufacturing apparatus for producing a real hologram according to the manufacturing method of the present invention. Here, reference numeral 100 denotes an optical supplier for generating a hologram, and reference numeral 300 denotes a real image hologram generator for generating a real image hologram.

The optical distributor 100 is the same as the one shown in FIG. 1, so that its specific configuration and operation will be omitted.

The actual image hologram generating unit 300 may include a diffusion lens 302, a first photosensitive plate 304 on which a hologram of a virtual image is generated, and a second photosensitive plate 306 on which a real image hologram is to be generated .

Here, the diffusion lens 302 and the first photosensitive plate 304 in which the hologram of the virtual image is generated are the same as the diffusion lens 202 and the first photosensitive plate 208 in FIG.

Therefore, in the case of constructing the manufacturing apparatus shown in FIG. 2, the manufacturing apparatus shown in FIG. 1 is configured to generate a virtual image hologram on the first photosensitive plate 208, and then the sectional plate 204 and the design panel 206 are removed , And the second photosensitive plate 306 is disposed at the corresponding position.

At this time, the second photosensitive plate 306 is arranged in a state of being tilted by about 10 to 20 degrees like the case plate 204 and the design panel 206. Also, the diffusion lens 302 is arranged at an angle of about 10 to 20 degrees.

In the manufacturing apparatus having such a configuration, the first light provided by the optical data providing unit 100 is diffused through the diffusion lens 302 and then incident on the second photosensitive plate 306.

The 2-1 light and the 2-2 light provided by the optical distributor 100 are incident on the first photosensitive plate 304 in which the hologram of the virtual image is generated at an angle of about 25 to 35 degrees.

Then, in the second photosensitive plate 306, the first light diffused by the diffusing lens 302 and the second-first light and the second light L2, which have passed through the hologram of the virtual image generated in the first photosensitive plate 304 -2 light is generated in the second photosensitive plate 306, and thus, a real hologram is generated in the second photosensitive plate 306.

The actual hologram produced in the second photosensitive plate 306 is copied to the film and the film in which the actual hologram is duplicated is displayed on a display such as an LED (Light Emitting Display) panel or an OLED (Organic Light Emitting Diode) Attach to the front of the panel.

3A to 3C are views for explaining the operation 4 of the hologram when the hologram manufactured according to the manufacturing method of the present invention is copied on a transparent film and attached to a display panel. 3A, when the display panel 400 is not illuminated and no external light is emitted in the state that a film 410 replicated with a hologram is attached to the display panel 400, The hologram reproduced in the hologram 410 can be visually confirmed on an angle range of about 10 to 20 degrees with respect to the vertical line.

That is, the diffusion lens 202, the diffraction plate 204, and the design panel 206 are arranged in a state of being tilted by about 10 to 20 degrees when generating a virtual image hologram, and when a real hologram is produced, The lens 302 and the second photosensitive plate 306 are arranged at an angle of about 10 to 20 degrees.

Therefore, the actual hologram reproduced on the film 410 can be visually confirmed only in an angular range of about 10 to 20 degrees with respect to the vertical line of the display panel 400 when the display panel 400 is not lit have.

Referring to FIG. 3B, when the display panel 400 is lit to emit light and there is external natural light, the hologram copied on the film 410 is divided into approximately 25 It can be visually confirmed only in an angle range of ~ 35 °.

That is, when the hologram is generated, the 2-1 light and the 2-2 light, which are reference lights, are incident on the first photosensitive plates 208 and 304 at an angular range of about 25 to 35 degrees, The hologram can be seen in an angular range of about 25 to 35 degrees to both the left and right sides with respect to the display panel 400 when external natural light is present.

Here, the hologram can be seen in the angular range of about 25 to 35 degrees on both the left and right sides with respect to the display panel 400, because the second-1 light and the second-2 light, which are reference lights, When the second light is incident on the first photosensitive plates 208 and 304 as a reference light, the light is incident on the display panel 400 in only one of the left and right directions, You can see the hologram in an angle range of 35 °.

1 and 2, the second-first light and the second-second light are incident on the first photosensitive plates 208 and 304, respectively. However, in the present invention, It is also possible that the light source 100 generates only one of the 2-1 light and the 2-2 light with reference light and is incident on the first photosensitive plates 208 and 304.

Here, when the user views a predetermined image displayed on the display panel 400, the display panel 400 is normally viewed from the front of the display panel 400, and the display panel 400 is displayed in an angular range of about 25 to 35 degrees, There is almost no case in which a predetermined image displayed on the screen is viewed.

Therefore, the user can view a predetermined image displayed on the display panel 400 without being disturbed by the hologram.

Referring to FIG. 3C, when the display panel 400 is lit to emit light and there is no external natural light, the hologram reproduced on the film 410 is not displayed at any angle on the display panel 400, The predetermined image displayed on the display panel 400 can be seen without being affected by the hologram.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, All or some of the embodiments may be selectively combined.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

100: Photodetector 102: Light source
104: plurality of first reflecting mirrors 106: first optical isolator
108: second optical isolator 110: a plurality of second reflection mirrors
112: third reflection mirror 114a, 114b: a plurality of polarizing lenses
116a, 116b: a plurality of diffusion lenses
118a, 118b: a plurality of Climate Mirrors
120a and 120b: a plurality of slit mirrors 200: a virtual image hologram generating unit
202, 302: diffusion lens 204: diffractive plate
206: design panel 208, 304: first photosensitive plate
300: actual image hologram generating unit 306: second photosensitive plate
400: Display panel 410: Hologram duplicated film

Claims (3)

Generating a first light that is object light and a second light that is reference light for generating a hologram, and generating second-1 light and second-2 light by the second light ;
The first light is incident on the first photosensitive plate through the diffusion lens, the diffraction plate, and the design panel sequentially, and the second-1 light and the 2-2 light are incident on the first photosensitive plate in an angular range of 25 to 35 degrees Causing the first photosensitive plate to generate a virtual image hologram due to interference between the first light , the second light , and the second light ; And
The first light is the diffusion lens and a second hologram of the virtual image from the photosensitive plate and incident on the generated first photosensitive plate and the second-first light and the second-second light to the first photosensitive plate 25 includes; is incident in the angle range of ~35 ° steps to cause the real image of the holograms due to the first light and the second-first light and the second-second interference light generated by the second photosensitive plate
Wherein the diffuser lens, the diffraction plate, the design panel, and the second photosensitive plate are inclined from an angle range of 10 to 20 degrees with respect to the first photosensitive plate. delete delete

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