KR101453900B1 - 3d display device without 3d glass - Google Patents

Abstract

The present invention provides an autostereoscopic LED screen which can have an image as stereoscopic images on a large screen such as a large electric signboard. The autostereoscopic LED screen according to the present invention may include: a background image portion in which the image screen is mounted on one side; and a three-dimensional image portion which is spaced apart from the background image portion by a predetermined distance, which is mounted with the three-dimensional image screen on one side, and which enables to view the image screen by transmitting light into the three-dimensional image screen.

Description

[0001] The present invention relates to a 3D display device,

The present invention relates to a spectacle-free 3D LED screen, and more particularly to a spectacle-free 3D LED screen for displaying an image in three dimensions.

In general, the most important factor that human beings feel three-dimensional is due to the spatial difference of the left and right retina which occurs when the left and right eyes look at an object in different directions on one object. Using this principle, a method of viewing a three-dimensional image by displaying images on the left and right sides of each other has been devised. These three-dimensional images are divided into a method of using glasses according to the display method and a method of not wearing glasses.

Among these, a stereoscopic image display apparatus using normal stereoscopic glasses is a stereoscopic image display apparatus in which a viewer can see an image (hereinafter referred to as a " right eye image ") and an image that a viewer can view with the left eye ) Is displayed on a stereoscopic screen, only the right eye image is transmitted through the stereoscopic glasses to the right eye, and only the left eye image is transmitted through the left eye. The image information viewed by the viewer's left and right eyes is processed into a three-dimensional image in the brain, and the viewer can feel the stereoscopic effect.

The method of providing the right and left image information to each eye in this manner is classified into an active method (shutter glasses method) and a passive method (polarized glasses method). Both methods have already been developed in the 60s and 70s, but commercialization has been made relatively recently due to the lack of related technology.

In the active system, the left eye image and the right eye image displayed on the screen are alternately projected in both eyes by the shutter action of the eyeglasses. As described above, the left eye image and the right eye image which are sequentially projected by the shutter glasses are separated and recognized by the viewer and synthesized in the brain to feel a three-dimensional effect. However, in the active system, since an apparatus for IR detection is additionally constructed, the price of the apparatus is increased, and the spectator directly exposes electromagnetic waves generated when the shutter glasses are driven. In addition, the shutter glasses are heavy, power supply is required, and eyes can easily become tired when viewing.

On the other hand, the passive system uses a polarizing filter and polarized glasses, and different kinds of polarizing films capable of passing light of different angles are constituted by the left eye lens and the right eye lens of the spectacles, respectively. A polarizing filter is configured on a display screen such as an LCD screen so that a left eye image and a right eye image are separated and a separated left eye image and right eye image are respectively projected to the left and right eyes of a viewer by each polarizing film, .

However, according to the conventional stereoscopic display device, the light transmission efficiency of the three-dimensional film is generally not more than 40%, so that the light transmission efficiency is not very good. Therefore, the displayed image is so dark that it is not suitable for use as an outdoor large display board, and an advertising apparatus.

In addition, there is a disadvantage that symptoms such as dizziness are liable to appear when watching for a long time and nausea and vomiting symptoms may appear in severe cases.

Particularly, in the large electric sign board, a large number of LED elements corresponding to pixels are arranged to form a single screen, and it is impossible to apply a polarizing filter to it, making it impossible to realize a three-dimensional image. In addition, even if the active mode is used, unspecified passengers outdoors do not wear the shutter glasses, and it is impossible to realize a three-dimensional image with a large electric signboard.

Published Patent No. 2013-0063950 (June 17, 2013)

It is an object of the present invention to provide a spectacle-free 3D LED screen capable of three-dimensionally displaying an image on a large screen such as a large electric signboard.

Another object of the present invention is to provide a spectacle-free 3D LED screen which does not require 3D glasses.

It is another object of the present invention to provide a non-eyeglass 3D LED screen which does not cause dizziness or the like even for a long time.

It is another object of the present invention to provide a spectacle-free 3D LED screen capable of controlling a stereoscopic effect.

The non-spectacle 3D LED screen according to the present invention comprises: a background image part in which an image screen is implemented on one side; And a stereoscopic image unit spaced apart from the background image unit by a predetermined distance, a stereoscopic image screen being implemented on one side of the stereoscopic image, and light being transmitted through the stereoscopic image screen to allow the user to view the image screen.

Preferably, the stereoscopic image unit includes a plurality of stereoscopic image modules, and the stereoscopic image module includes a substrate on which LEDs are mounted, and at least one through hole may be formed through the substrate.

Preferably, the through-holes may be formed in a slit shape between the neighboring LEDs.

Preferably, the stereoscopic image unit includes a plurality of substrates on which LEDs are mounted, a plurality of the substrates are spaced apart from each other by a predetermined distance, and the substrate includes a plurality of stereoscopic image modules, And the stereoscopic image unit can be formed.

Preferably, the substrate has a long and narrow strip shape, and one end and the other end of the substrate may be fixedly coupled to different fixing bars, respectively.

Preferably, the controller further includes a controller and a power supply for driving at least one of the stereoscopic image modules, and the neighboring controller and the power supply unit may be electrically connected in parallel.

Preferably, the controller and the power supply unit may be arranged standing from the frame toward the background image portion.

Preferably, the size of the stereoscopic image screen of the background image part and the size of the stereoscopic image part of the stereoscopic image part may be different from each other.

Preferably, the size of the background image part and the size of the stereoscopic image part may be different from each other.

Preferably, the stereoscopic effect of the image can be adjusted by adjusting a distance between the background image part and the stereoscopic image part.

Preferably, the background video unit includes an LED for driving the video screen,

. ≪ / RTI >

The non-spectacle 3D LED screen according to the present invention can realize a three-dimensional image even on a large screen such as a large electric signboard, is very convenient because three-dimensional glasses are unnecessary, and can be used in a general three- And the like can be prevented. In addition, since stereoscopic effect can be controlled, it is possible to cope with viewing purpose and situation.

1 is a perspective view of a spectacles 3D LED screen according to an embodiment of the present invention,
FIG. 2 is a perspective view of a stereoscopic image portion of a spectacle-free 3D LED screen according to an embodiment of the present invention,
3 is a perspective view of a stereoscopic image module of a spectacles 3D LED screen according to an embodiment of the present invention,
4 is a view illustrating a combination of a stereoscopic image module of a spectacles 3D LED screen according to an embodiment of the present invention,
FIG. 5 is a rear view of a stereoscopic image part of a spectacle-free 3D LED screen according to an embodiment of the present invention;
6 is a view showing the arrangement of electrical components of a stereoscopic image module of a spectacle-free 3D LED screen according to an embodiment of the present invention;
7 is a driving example of a spectacle-free 3D LED screen according to an embodiment of the present invention,
8 is a view illustrating a spectacles 3D LED screen according to another embodiment of the present invention;
9 is a view illustrating a driving screen of a spectacle-free 3D LED screen according to another embodiment of the present invention, and Fig.
10 is a view illustrating a spectacles 3D LED screen according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention 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 as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

2 is a perspective view of a stereoscopic image portion of a spectacle-free 3D LED screen according to an embodiment of the present invention, and FIG. 3 is a perspective view of a stereoscopic 3D LED screen according to an embodiment of the present invention Eye 3D LED screen according to the present invention.

The 3D glassesless 3D LED screen according to an embodiment of the present invention includes a background image part 100 and a stereoscopic image part 200. [ A plurality of substrates on which a plurality of LEDs 311 are mounted are connected to the background image unit 100 to form a large screen, and the images can be reproduced through the large screen.

The stereoscopic image unit 200 is disposed at a predetermined distance from the background image unit 100 in front of the background image unit 100. The stereoscopic image unit 200 includes a plurality of stereoscopic image modules 300 and a frame 320, .

The stereoscopic image module 300 includes a substrate 310 and a plurality of LEDs 311, and the LEDs 311 are mounted on one surface of the substrate. The substrate 310 is formed with through holes 312 passing through the LEDs 311 in a slit shape in parallel in a line. That is, strips having a plurality of LEDs 311 arranged in a row are arranged in a line spaced apart from each other by a predetermined distance.

The viewer located in front of the stereoscopic image unit 200 can observe the background image unit 100 disposed behind the stereoscopic image unit 200 through the through hole 312 between the LEDs 311 . That is, the viewer can view the image reproduced from the background image unit 100 through the stereoscopic image unit 200. [

Meanwhile, according to another embodiment of the present invention, the stereoscopic image module may include a plurality of strip substrates (not shown) having a plurality of LEDs 311 arranged in a line on the front surface thereof. The strip substrate has a long and narrow strip shape, and a plurality of strip substrates are arranged in parallel in a row. One end and the other end of the strip substrate are fixedly coupled to a fixing bar (not shown) Dimensional image module of the stereoscopic image display device. At this time, the neighboring strip substrates are spaced apart from each other by a predetermined distance, so that an empty space is formed between neighboring strip substrates, and the viewer can view the image of the background image unit 100 through the strip substrates.

Meanwhile, according to another embodiment of the present invention, the frame 320 may be made of a transparent material, or the stereoscopic image module 300 may be installed on a transparent plate to increase the light transmitting area.

FIG. 4 is a view showing a combination of a stereoscopic image module of a spectacle-free 3D LED screen according to an embodiment of the present invention, and FIG. 5 is a rear view of a stereoscopic image part of a spectacle-free 3D LED screen according to an embodiment of the present invention to be.

According to an embodiment of the present invention, a plurality of stereoscopic image modules 300 may be coupled to the frame 320 to form a large screen. A controller 330 and a power supply unit 340 for driving the LED 311 are fixed to the frame 320 and the stereoscopic image module 300 is connected to the controller 330 and the power supply unit 340 to be driven have. According to an embodiment of the present invention, a plurality of the stereoscopic image modules 300 may be driven by one controller 330 and one power supply unit 340. For example, sixteen stereoscopic image modules 300 may be electrically connected to one controller 330 and one power supply unit 340. In addition, according to another embodiment of the present invention, one controller 330 and one power supply unit 340 can serve as one stereoscopic image module 300. However, it is undesirable that one controller 330 and one power supply unit 340 take up too many stereoscopic image modules 300, because the power can be dropped in this case.

Meanwhile, according to an embodiment of the present invention, a plurality of LEDs 311 are vertically arranged in a row, but the LEDs 311 may be arranged horizontally or diagonally, if necessary. In addition, the number, the length and the width of the through holes 312, and the number and position of the LEDs 311 may be variously configured.

6 is a view showing an arrangement of electrical components of a stereoscopic image module of a spectacle-free 3D LED screen according to an embodiment of the present invention.

The controller 330 and the power supply unit 340 may prevent the viewer from observing the background image unit 100 when the controller 330 and the power supply unit 340 cover the through hole 312. [ 340 may be coupled to the frame 320 so as to stand from the frame 320 toward the background image part 100. Referring to FIG. 6, the controller 330 and the power supply unit 340 are arranged in a standing manner so that the background image unit 100 is not blocked, thereby allowing the viewer to easily view the image displayed from the background image unit 100 . At this time, it is preferable that the projection height of the controller 330 and the power supply unit 340 is as low as possible so as not to interfere with viewing even when the viewer is located diagonally from the front of the background image unit 100.

FIG. 7 is a driving example of a spectacles 3D LED screen according to an embodiment of the present invention. When different images are displayed on the stereoscopic image unit 200 and the background image unit 100, And the image of the background image unit 100 viewed through the through hole 312 of the stereoscopic image unit 200 can be simultaneously viewed. At this time, since the distance between the viewer and the screen of the stereoscopic image unit 200 is different from each other in comparison with the distance between the viewer and the screen of the background image unit 100, the viewer can feel the stereoscopic image and can view the image. In addition, it is possible to adjust the degree of stereoscopic effect and the effect of the image by adjusting the distance between the background image part 100 and the stereoscopic image part 200. Although not shown, a moving means such as a rail is installed on the floor surface, The position can be conveniently adjusted.

According to another embodiment of the present invention, the screen size of the stereoscopic image unit 200 may be divided into a background image part and a background image part according to a position of a viewer, The size of the screen 100 may be different from that of the screen 100. When the distance between the viewer and the stereoscopic image unit 200 is short, the size of the stereoscopic image unit 200 can be reduced to only the extent to the audiovisual range of the viewer, thereby reducing the size of the apparatus and reducing the price of the apparatus.

9 is a view illustrating a driving screen of a spectacle-free 3D LED screen according to another embodiment of the present invention. When a distance between a viewer and a stereoscopic image unit 200 is short, (a) It is possible to reduce the power consumed by displaying the size so as to be small enough to reach the audiovisual range of the viewer.

FIG. 10 is a diagram illustrating a spectacle-free 3D LED screen according to another embodiment of the present invention. The stereoscopic image unit 200 may be provided in two rows, and different images may be reproduced. Therefore, the stereoscopic effect can be more emphasized, and the stereoscopic effect can be visually improved, and more various visual effects can be realized by providing three or more stereoscopic image units 200 as required.

According to the conventional stereoscopic display device, since the light transmission efficiency of the three-dimensional film is very low, the displayed image is dark and is not suitable for use as an outdoor large electric signboard and an advertisement device.

In addition, there is a disadvantage that symptoms such as dizziness are liable to appear when watching for a long time and nausea and vomiting symptoms may appear in severe cases.

In particular, since a large screen is formed by arranging a large number of LED elements corresponding to each pixel, it is impossible to apply a polarizing filter and it is impossible to realize a three-dimensional image. In addition, even if the active mode is used, unspecified passengers outdoors do not wear the shutter glasses, and it is impossible to realize a three-dimensional image with a large electric signboard.

However, according to the present invention, an image can be displayed in three dimensions on a large screen such as a large electric signboard, and a three-dimensional image can be provided to an unspecified majority because three-dimensional glasses are unnecessary.

Further, the stereoscopic effect can be adjusted only by adjusting the position of the stereoscopic image portion without generating dizziness or the like even for a long time.

In addition, the size of the stereoscopic image can be easily adjusted only by adjusting the number of the stereoscopic image modules 300.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Various modifications and variations are possible within the scope of the appended claims.

100: background video part 200: stereoscopic video part
300: stereoscopic image module 310: substrate
311: LED 312: Through hole
320: frame 330: controller
340: Power supply

Claims (11)

A background image unit in which an image screen is implemented on one side; And
A stereoscopic image display unit that is spaced apart from the background image unit by a predetermined distance, a stereoscopic image screen is implemented on one side, and at least one stereoscopic image unit
Lt; / RTI >
Wherein the stereoscopic image unit includes a plurality of stereoscopic image modules,
Wherein the stereoscopic image module includes a substrate on which an LED is mounted,
Wherein at least one through hole is formed in the substrate, and the through hole is formed in a slit shape between adjacent LEDs.
delete delete The stereoscopic image display device according to claim 1,
A plurality of substrates on which LEDs are mounted on one side
/ RTI >
Wherein the substrate is spaced apart from the adjacent substrates by a predetermined distance, and the substrate comprises a plurality of three-dimensional image modules, and the plurality of the three-dimensional image modules constitute the three-dimensional image portion.
5. The method of claim 4,
Wherein the substrate has a long and narrow strip shape, and one end and the other end of the substrate are fixedly coupled to different fixing bars, respectively.
The method according to claim 1,
A controller for driving at least one of the stereoscopic image modules,
Further comprising:
Wherein the neighboring controller and the power supply are electrically connected in parallel.
The method according to claim 6,
Wherein the controller and the power supply are arranged standing up toward the background image portion.
The method according to claim 1,
Wherein the size of the stereoscopic image screen of the background image part and the size of the stereoscopic image part of the stereoscopic image part are different from each other.
The method according to claim 1,
Wherein the size of the background image part and the size of the stereoscopic image part are different from each other.
The method according to claim 1,
And the stereoscopic effect of the image can be adjusted by adjusting a distance between the background image part and the stereoscopic image part.
The apparatus according to claim 1,
The LED for driving the image screen
A spectacles 3D LED screen including.

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