KR101691298B1 - Apparatus for projecting space image - Google Patents

Apparatus for projecting space image Download PDF

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Publication number
KR101691298B1
KR101691298B1 KR1020150095011A KR20150095011A KR101691298B1 KR 101691298 B1 KR101691298 B1 KR 101691298B1 KR 1020150095011 A KR1020150095011 A KR 1020150095011A KR 20150095011 A KR20150095011 A KR 20150095011A KR 101691298 B1 KR101691298 B1 KR 101691298B1
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KR
South Korea
Prior art keywords
image
display unit
prism array
electronic shutter
prisms
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KR1020150095011A
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Korean (ko)
Inventor
김은수
김승철
Original Assignee
광운대학교 산학협력단
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Priority to KR1020150095011A priority Critical patent/KR101691298B1/en
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Publication of KR101691298B1 publication Critical patent/KR101691298B1/en

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    • H04N13/0459—
    • H04N13/047—
    • H04N13/0488—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

The present invention comprises: a display part (200) outputting an image (100); a semipermeable mirror (300) changing a direction of the image (100) outputted from the display part (200); a prism array (400) including a plurality of prisms (410) arrayed on a side; and an electronic shutter (500) formed ahead of, behind, or inside the prism array (400). The direction of the image, outputted by the display part (200), is changed by the semipermeable mirror (300), and a space image (110) is shown to an observer (600) by the prisms (410) placed on a side of a transparent film (420). Therefore, according to the present invention, the space image projecting device is capable of widening sight, in which the image (100) is shown, has a small volume, a light weight, and the entirely minimized size, enables the observer (600) in every direction to feel that the same screen exists, and can be applied to every direction regardless of angles.

Description

[0001] APPARATUS FOR PROJECTING SPACE IMAGE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spatial image projection apparatus, and more particularly, to a spatial image projection apparatus that projects a spatial image in each direction of a subject through a projection unit, thereby allowing a person viewing the spatial image to accurately view the image Technology.

In general, a spatial image is an image expressing a depth, unlike a two-dimensional plane image, and a person can feel a three-dimensional feeling when the binocular of the person recognizes the spatial image.

The spatial image projection apparatus projects a spatial image as described above to provide a three-dimensional feeling as if the person is looking at the real.

As a display device of Japanese Unexamined Patent Publication No. 2006-208583 as a related art, there is provided a display device having an optical unit for projecting photographic image light, and visually recognizing an image projected from the optical unit as a virtual image or a real image, A prism sheet as a plate-like transparent member; and a plurality of microprisms including at least one total reflection surface and provided on at least a surface of the prism sheet opposite to the surface, Wherein when the light projected from the indicator is incident on the sheet-like optical element, the light traveling direction is bent by the micro-prism so as to be emitted.

As another conventional technique, an image reproducing apparatus and a hologram member disclosed in Japanese Unexamined Patent Application Publication No. 2003-216009 have a hologram recording medium attached to the outer circumferential surface of a light introducing block made of an optically transparent material on which a hologram stereoscopic image or a hologram image is recorded And a hologram recording medium which is provided in the outer case and irradiates the hologram stereoscopic image or the illumination light for reproduction for reproducing the hologram image, And the image pickup device is mounted on the image pickup device.

However, the above-described conventional apparatus has a disadvantage in that there is an output unit for projecting a spatial image on the front surface and can not be rotated by a desired spatial image in the other direction except for the front surface.

Accordingly, it is an object of the present invention to provide an apparatus and method for viewing an image projected on a space through a spatial image projection apparatus, and a method of projecting an image onto a space by a screen after a step- The visual field of the image is widened and the volume of the present invention can be small and light and the overall size can be downsized. , It is possible to apply the image to all directions without being influenced by the angle due to the continuous change of the image. .

The present invention provides a display device comprising: a display unit for outputting an image; A semi-transparent mirror for changing the direction of the image output from the display unit; A prism array in which a plurality of prisms are arranged in an array on one side; An electronic shutter configured in front of or behind the prism array; The image output from the display unit is changed in direction due to the semi-transparent mirror, and the spatial image is viewed by the observer by the plurality of prisms arranged on one side of the transparent film.

The spatial image projection apparatus according to the present invention has a wide field of view, a small volume and a light weight, and can be miniaturized in its entirety. The observer's eyes in each direction appear to have the same image, There is a remarkable effect that can be applied to all directions without receiving the light.

1 is a conceptual diagram of a basic projection method of a spatial image projection apparatus according to the present invention.
2 is a view showing a prism array of a spatial image projection apparatus according to the present invention
3 is a conceptual diagram of a projection method in an electronic shutter ON state of a spatial image projection apparatus according to the present invention.
4 is a conceptual diagram of a projection method in an electronic shutter OFF state of a spatial image projection apparatus according to the present invention.
5 is a configuration diagram of a spatial image projection apparatus to which an electronic shutter is added according to an embodiment of the present invention
6 is a conceptual diagram of an image output using a shutter of a spatial image projection apparatus to which an electronic shutter is added according to an embodiment of the present invention.
FIG. 7 is a view showing an image taken in each direction through a prism array of a spatial image projection apparatus to which an electronic shutter is added according to an embodiment of the present invention.
8 is a schematic view of a spatial image projection apparatus to which the electronic shutter of the present invention is added
9 is a configuration diagram of a spatial image projection apparatus using a cylindrical prism array according to another embodiment of the present invention
10 is a plan view of a spatial image projection apparatus using a cylindrical prism array according to another embodiment of the present invention,
11 is a cross-sectional view showing another embodiment of the present invention in which a cylindrical prism

The present invention includes a display unit (200) for outputting an image (100); A semi-transparent mirror 300 for changing the direction of the image 100 output from the display unit 200; A prism array 400 in which a plurality of prisms 410 are arranged on one side; An electronic shutter 500 formed on the front, rear, or inside of the prism array 400; The image output from the display unit 200 is changed in direction due to the transflective mirror 300 and the spatial image 110 is projected by the plurality of prisms 410 disposed on one side of the transparent film 420 And is visible to the observer 600.

The display unit 200 includes a display panel 250 capable of outputting an image in the direction of the semi-transparent mirror 210, and the display panel 250 is disposed in each direction through the semi-transparent mirror 210 and the prism array 400. So that the spatial image 110 can be expressed.

The prism array 400 includes a plurality of prisms 410 formed on an oblique sloped surface at a predetermined angle with respect to a horizontal plane and a transparent film 420 attached to one surface of the plurality of prisms 410, The plurality of prisms 410 are formed as a stepped layer, and each prism 410 is inclined at a predetermined angle with respect to a horizontal plane so that the image 100, which is a light, is refracted.

The electronic shutter 500 is characterized in that a position of one side of the image 100 of the display unit 200 is turned clockwise or counterclockwise.

In addition, the display unit 200 is formed in a quadrangle, and a prism array 400 for displaying an image in four directions of front / rear / left / right on the outer surface of the display unit 200 is installed, The electronic shutter 500 can be turned on or off when the prism array 400 is turned on or off. When the electronic shutter 500 is turned on, When the image 100 is outputted to the outside and is in the Off state, the image 100 is prevented from going out because the light can not be transmitted.

The electronic shutter 500 sequentially turns on one side in the clockwise direction or counterclockwise direction and the other three sides are in the Off state and at the same time the image 100 of the display unit 200 is constantly changed in accordance with the direction, So that the spatial image 110 appears continuously in the field of view of the observer 600. FIG.

The display unit 200 is formed in a circular shape or a quadrangle shape and the display unit 200 is provided with a prism array 400 in a height direction on the outer circumference thereof and is disposed in front of or behind the prism array 400 The front surface prism array 400 is configured such that one side of the outer circumferential surface is in the ON state and the other side is in the OFF state The electronic shutter 500 is physically rotated in one direction to continuously display an image corresponding to each position to the observer 600. FIG.

The display unit 200 is formed in a circular shape or a quadrangle shape and the display unit 200 is provided with a prism array 400 in a height direction on the outer circumference thereof and is disposed in front of or behind the prism array 400 The electronic shutter 500 is turned on one by one in the clockwise or counterclockwise direction without any physical movement and the other three surfaces are turned off and simultaneously the display unit 500 The image 100 of the viewer 200 continuously changes in accordance with the direction, and the spatial image 110 seems to continuously appear in the field of view of the observer 600 by repeatedly rotating rapidly as described above.

The present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a conceptual diagram of a basic projection method of a spatial image projection apparatus of the present invention, FIG. 2 is a drawing of a prism array of a spatial image projection apparatus of the present invention, FIG. 4 is a conceptual diagram of a projection system, FIG. 4 is a conceptual diagram of a projection system in an electronic shutter OFF state of a spatial image projection apparatus of the present invention, FIG. 5 is a structural view of a spatial image projection apparatus to which an electronic shutter is added, FIG. 7 is a diagram showing a concept of an image output using a shutter of a spatial image projection apparatus to which an electronic shutter is added. FIG. 7 is a schematic view of a spatial image projection apparatus according to an embodiment of the present invention, FIG. 8 is a perspective view of a spatial image projection apparatus to which an electronic shutter of the present invention is added; FIG. 9 is a perspective view of a spatial image projection apparatus using a cylindrical prism array according to another embodiment of the present invention; A block diagram, Figure 10 is a plan view of a cylindrical prism with time of the spatial image projection apparatus using another embodiment of the cylindrical prism array of the present invention, Figure 11 is another embodiment of an electronic shutter of the present invention is installed.

More specifically, the present invention includes a display unit 200 for outputting an image 100; A semi-transparent mirror 300 for changing the direction of the image 100 output from the display unit 200; A prism array 400 in which a plurality of prisms 410 are arranged on one side; An electronic shutter 500 formed on the front, rear, or inside of the prism array 400; The image output from the display unit 200 is changed in direction due to the transflective mirror 300 and the spatial image 110 is projected by the plurality of prisms 410 disposed on one side of the transparent film 420 (600).

The display unit 200 includes a display panel 250 capable of outputting an image in the direction of the semi-transparent mirror 210, and the display panel 250 is disposed in each direction through the semi-transparent mirror 210 and the prism array 400. The spatial image 110 can be expressed.

As an example of the display unit 200, the display unit 200 may be used in various shapes such as cones, pyramids, cylinders, prisms, semicircles, and the like.

1, the image 100 output from the display unit 200 moves to the path A 210 and is reflected by the transflective mirror 300 to be visible to the observer 600. The observer 600 Recognizes that the image 100 comes from the path B 220 and allows the display panel 250 to feel the image 100 illuminated by the display panel 250 as if projected on the space so that the spatial image 110 can be seen.

When the display unit 200 displays the light as the image 100 and projects it upward, the upwardly projected light goes straight in various directions according to the viewing angle of the display unit 200, and the prism array 400 Is reflected by the prism array 400 and directed toward the observer 600 like the path D 240. At this time, the observer 600 reflects the light projected through the path D 240 C 230 as if it were projected.

The transflective mirror 300 is installed to change the direction of the image 100 output from the display unit 200 so that the observer 600 can view the image.

2, the prism array 400 includes a plurality of prisms 410 formed on an oblique inclined surface with respect to a horizontal plane, and a plurality of transparent films 420 attached on one surface of the plurality of prisms 410, The plurality of prisms 410 are formed as stepped layers, and each of the prisms 410 is inclined at a predetermined angle with respect to a horizontal plane so that the image 100, which is a light, is refracted.

The prism array 400 is a structure in which a plurality of prisms having the same shape are connected to each other and one side of each of the prisms is formed to form one surface. The observer 600 can see the spatial image 110 And is positioned between the display unit 200 and a position where the display unit 200 is located.

The image 100 is changed so that the spatial image 110 having an accurate shape can be seen from any direction of the outside.

In addition, the electronic shutter 500 rotates the position of one side of the display unit 200 when the image 100 is turned clockwise or counterclockwise.

In one embodiment of the electronic shutter 500, one side of the electronic shutter 500 is turned on and the other side is turned off. At the same time, the image 100 of the display unit 200 is rotated clockwise or counterclockwise The position on one surface which is in an On state rotates.

In another embodiment of the electronic shutter 500, the electronic shutter 500 is in a state in which one side is in the ON state and the other side is in the OFF state, .

5 to 8, the display unit 200 is formed in a square shape. The display unit 200 has four (front, rear, left, and right) A prism array 400 for displaying an image in a direction of the prism array 400 and an electronic shutter 500 configured in front of or behind the prism array 400 is provided, Or Off state. When the image 100 is transmitted to the outside, the image 100 is output to the outside because the light is transmitted. When the image 100 is in the off state, the image 100 is prevented from being transmitted outside,

The electronic shutter 500 sequentially turns on one side in the clockwise direction or counterclockwise direction and the other three sides are in the Off state and at the same time the image 100 of the display unit 200 is constantly changed in accordance with the direction, So that the spatial image 110 appears to be continuously displayed in the view of the observer 600.

For example, when the front surface of the electronic shutter 500 is in the ON state, the right side, the rear side, and the left side are in the OFF state and the image 100 to be outputted to the front side is displayed on the display unit 200, ), As shown in Fig. 7, the front view shows the front view of the person, the right view shows the left view, the rear shows the back view, and the left shows the right view.

The prism array 400 of the above embodiment extends from four sides and can be used in various shapes such as cones, pyramids, cylinders, prisms, semicircles, and the like.

9 to 10, the display unit 200 may have a circular shape or a quadrangle shape. The display unit 200 may include a prism array (not shown) 400 and an electronic shutter 500 formed on the front, back, or inside of the prism array 400. In this case, the spatial image 110 can be seen on all four surfaces as well as on four surfaces, The array 400 physically rotates in one direction together with the electronic shutter 500 to continuously display an image corresponding to each position to the observer 600 while one side of the outer circumferential surface is in the ON state and the other side is in the OFF state will be.

11, the display unit 200 may have a circular shape or a quadrangular shape. The display unit 200 may include a prism array 400 And the electronic shutter 500 is formed in the front, rear, or inside of the prism array 400. The electronic shutter 500 can be moved in a clockwise or counterclockwise direction The image 100 of the display unit 200 is continuously changed in accordance with the direction of the display while the other three surfaces are in the Off state and the image of the observer 600 continuously rotates repeatedly as described above, The image 110 appears to be appearing.

Therefore, the spatial image projection apparatus according to the present invention can broaden the field of view of the image 100, can be small in volume, light in weight, and can be downsized in size, and the same image is displayed on the eyes of the observer 600 in each direction There is a noticeable effect that can be applied to all directions without being affected by the angle.

100: image 110: spatial image
200: display unit 210: path A
220: path B 230: path C
240: path D 250: display panel
300: Transparent mirror
400 prism array 410 prism
420: transparent film
500: electronic shutter
600: observer

Claims (7)

A display unit 200 for outputting an image 100; A semi-transparent mirror 300 for changing the direction of the image 100 output from the display unit 200; A prism array 400 in which a plurality of prisms 410 are arranged on one side; An electronic shutter 500 formed on the front, rear, or inside of the prism array 400; The image output from the display unit 200 is changed in direction due to the transflective mirror 300 and the spatial image 110 is projected by the plurality of prisms 410 disposed on one side of the transparent film 420 In a spatial image projection apparatus visible to an observer 600,
The display unit 200 includes a display panel 250 capable of outputting an image in the direction of the transflective mirror 210. The display panel 250 displays a spatial image in each direction through the transflective mirror 210 and the prism array 400, Lt; RTI ID = 0.0 > 110, < / RTI &
Wherein the electronic shutter (500) changes the position of one surface of the display unit (200) in an on state, which is a state in which the image (100) is output, in a clockwise or counterclockwise direction. delete The prism array according to claim 1, wherein the prism array includes a plurality of prisms formed in an oblique angle with respect to a horizontal plane, and a plurality of prisms, Wherein the plurality of prisms (410) are formed as a stepped layer, and each of the prisms (410) is inclined at a predetermined angle with respect to a horizontal plane to refract the image (100) delete The display device according to claim 1, wherein the display unit (200) comprises a prism array (400) for displaying an image in a height direction on four front / rear / left / right sides of the display unit And the electronic shutter 500 is installed in the front, rear, or inside of the prism array 400. The electronic shutter 500 can be turned on or off, When the image 100 is transmitted to the outside due to the transmission of light and is in the off state, the image 100 is prevented from being transmitted to the outside because the light is not transmitted.
The electronic shutter 500 sequentially turns on one side in the clockwise direction or counterclockwise direction and the other three sides are in the Off state and at the same time the image 100 of the display unit 200 is constantly changed in accordance with the direction, The spatial image 110 is continuously displayed in the field of view of the observer 600 by rotating it repeatedly as shown in FIG. The display unit according to claim 1, wherein the display unit is formed in a circular shape or a quadrangle shape. The display unit includes a prism array in a height direction on an outer circumference of the display unit, The front and rear prism arrays 400a and 400b are configured such that the spatial image 110 can be seen on all four surfaces as well as on four surfaces. And the electronic shutter 500 physically rotates in one direction to continuously display an image corresponding to each position to the observer 600, The display unit according to claim 1, wherein the display unit is formed in a circular shape or a quadrangle shape. The display unit includes a prism array in a height direction on an outer circumference of the display unit, The electronic shutter 500 is configured such that the electronic shutter 500 is turned on one by one in the clockwise or counterclockwise direction in order without any physical movement and the other three sides are turned off, At the same time, the image 100 of the display unit 200 continuously changes according to the direction, and the spatial image 110 appears continuously in the field of view of the observer 600 by repeatedly rotating rapidly as described above Spatial image projection device
KR1020150095011A 2015-07-03 2015-07-03 Apparatus for projecting space image KR101691298B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180129163A (en) * 2017-05-25 2018-12-05 주식회사 케이티 Polyhedron image projection apparatus
KR20200032895A (en) 2018-09-19 2020-03-27 주식회사 케이티 Cylindrical three-dimensional image projection apparatus using half-mirror
KR20210049594A (en) 2019-10-25 2021-05-06 주식회사 케이티 Three-dimensional image projection apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030088244A (en) * 2002-05-13 2003-11-19 삼성에스디아이 주식회사 Autostereoscopic display appratus
KR20140144617A (en) * 2013-06-11 2014-12-19 광운대학교 산학협력단 Apparatus for projecting space image

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030088244A (en) * 2002-05-13 2003-11-19 삼성에스디아이 주식회사 Autostereoscopic display appratus
KR20140144617A (en) * 2013-06-11 2014-12-19 광운대학교 산학협력단 Apparatus for projecting space image

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180129163A (en) * 2017-05-25 2018-12-05 주식회사 케이티 Polyhedron image projection apparatus
KR102019393B1 (en) * 2017-05-25 2019-09-06 주식회사 케이티 Polyhedron image projection apparatus
KR20200032895A (en) 2018-09-19 2020-03-27 주식회사 케이티 Cylindrical three-dimensional image projection apparatus using half-mirror
KR20210049594A (en) 2019-10-25 2021-05-06 주식회사 케이티 Three-dimensional image projection apparatus

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