KR101085586B1 - 3d display apparatus having variable barrier panel - Google Patents

Abstract

PURPOSE: A three-dimensional image display device equipped with a variable barrier panel is provided to convert a barrier panel corresponding to the variation of viewing angle of a viewer. CONSTITUTION: A barrier panel(320) includes a plurality of barriers and a plurality of slits. A plurality of barriers blocks the image of a video panel(330). A plurality of slits projects the image of the image panel. The barrier and the slit are repetitively arranged. The barrier panel changes the image into a three-dimensional image.

Description

3D display apparatus having variable barrier panel

The present invention relates to a stereoscopic image display device having a variable barrier panel, and more particularly, to a stereoscopic image having a variable barrier panel capable of realizing a stable stereoscopic image by changing the barrier panel in response to a change in the viewing angle of an observer. It relates to a display device.

In general, three-dimensional images that represent three-dimensional image is made by the principle of stereo vision through two eyes. The parallax of two eyes, that is, binocular disparity that appears because two eyes are about 65mm apart, is the most important factor of three-dimensional effect. This can be called. In other words, the left and right eyes each see different two-dimensional images, and when these two images are delivered to the brain through the retina, the brain accurately fuses them with each other to reproduce the depth and reality of the original three-dimensional image.

Currently, technologies proposed for displaying 3D stereoscopic images include a stereoscopic image display, a glassesless stereoscopic image display, and a holographic display method using special glasses. The three-dimensional image display method using the special glasses is a polarized glasses method using the vibration direction or rotation direction of the polarized light, time-division glasses method alternately presented while switching the left and right images and a method of delivering light of different brightness in the left and right Phosphorus concentration difference can be divided. In addition, the autostereoscopic 3D display method includes a parallax method and a semi-cylindrical lens arranged in front of each image corresponding to the left and right eyes to separate and observe the image through a vertical aperture. It can be divided into a lenticular method using a lenticular plate and an integral photography method using a lens plate shaped like a fly's eye.

In addition, the holographic display method can obtain a three-dimensional stereoscopic image having all factors such as focus adjustment, confinement angle, binocular disparity, and motion parallax that cause three-dimensional effect. Are classified.

The three-dimensional image display method by the special glasses, many people can enjoy the three-dimensional image, but has the disadvantage that you must wear a separate polarized glasses or liquid crystal shutter glasses. That is, the observer must wear special glasses, causing discomfort and unnaturalness.

The autostereoscopic 3D display method has a fixed observation range and is limited to a small number of people, but has a feature of not wearing a separate eyeglass.

Thus, there is an increasing tendency to adopt a parallax barrier, which is a method of realizing a three-dimensional image virtually through deception using stereo images.

The parallax barrier is a vertical or horizontal shape (slit) placed in front of an image corresponding to the left and right eyes so as to separate and observe a stereoscopic image synthesized through the slit to feel a three-dimensional effect. .

Here, the three-dimensional image display apparatus by the parallax barrier method will be described briefly as follows.

1 is a view showing that a three-dimensional image is implemented by a conventional barrier-type 3D display device.

As shown in FIG. 1, the conventional parallax barrier method includes an image panel 30 and a barrier panel 20, and the barrier panel 20 blocks slit through which light passes and blocks the light. The barriers are arranged in front of the image panel 30 in a structure arranged repeatedly.

The observer sees an image generated by the image panel 30 through the slit of the barrier panel 20. The observer's left and right eyes see different regions of the image panel 30, even though they pass through the same slit. The parallax barrier method uses this principle, so that the left eye and the right eye view images corresponding to pixels in different areas through the slit, so that a 3D feeling can be felt.

That is, in FIG. 1, the left eye LE sees the left eye corresponding pixel L in the image panel 30, and the right eye RE sees the right eye corresponding pixel R in the image panel 30.

However, since the parallax barrier applied to the conventional stereoscopic display is fixed in position, the left and right viewing angles at which an observer can see a stereoscopic image are within about 5 degrees, which is very limited.

That is, when the viewer's viewing angle moves to the right or to the left, there is a problem in that a stable stereoscopic image is not provided.

Accordingly, it is an object of the present invention to provide a stereoscopic image display device having a variable barrier panel that can overcome the above-described conventional problems.

Another object of the present invention is to provide a stereoscopic image display apparatus having a variable barrier panel capable of realizing a stable stereoscopic image by changing the barrier panel in response to a change in the viewing angle of an observer.

Another object of the present invention is to provide a stereoscopic image display apparatus having a variable barrier panel capable of realizing a stable stereoscopic image by physically or electrically changing the barrier panel.

According to an embodiment of the present invention for achieving some of the above technical problems, a stereoscopic image display apparatus according to the present invention, the image panel for emitting a predetermined image; A plurality of barriers for blocking an image of the image panel and a plurality of slits for transmitting the image of the image panel are disposed in front of the image panel in a structure in which the barrier and the slits are alternately arranged and arranged in front of the image panel. A barrier panel for converting an image emitted from the image into a stereoscopic image; It is provided with a barrier panel converting unit for detecting a change in the position of the observer and maintaining a stable stereoscopic image by changing the position of the barrier panel in response to the position change.

The barrier panel converter may include a position detector configured to detect a position of the observer and generate a detection signal; A barrier panel controller configured to calculate and set a position of the barrier panel for maintaining a stable stereoscopic image and to generate a barrier panel driving signal for moving the barrier panel to a set position in response to a detection signal of the position sensing unit; The barrier panel driver may move the barrier panel to a predetermined position in response to the barrier panel driving signal.

The barrier panel may be disposed such that the separation distance from the image panel increases from the edge portion to the center portion.

According to another embodiment of the present invention for achieving some of the above technical problem, a stereoscopic image display apparatus according to the present invention, the image panel for emitting a predetermined image; When a first conversion signal is applied to the front of the image panel, a plurality of fine patterns which become transparent patterns and a second opaque pattern when a second conversion signal is applied are successively arranged, and one fine pattern or a plurality of fine patterns adjacent to each other are disposed. A barrier panel for converting an image output from the image panel into a stereoscopic image by setting a plurality of blocks each having a single block and dividing the plurality of blocks into a barrier block or a slit block; ; A barrier that changes the position of the barrier block and the slit block constituting the barrier panel by sensing a change in the observer's position and resetting the plurality of blocks constituting the barrier panel in response to the position change. A panel setting part is provided.

The barrier panel setting unit may include a position sensing unit configured to detect a position of the observer and generate a position sensing signal; A block setting unit providing a reset signal for resetting the plurality of fine patterns into a barrier block and a slit block in response to the position detection signal of the position detection unit; A fine pattern conversion signal generation unit configured to reconstruct the barrier panel by generating the first conversion signal or the second conversion signal corresponding to the set blocks in response to the reset signal, and applying the first conversion signal or the second conversion signal to each of the plurality of fine patterns can do.

By applying different conversion signals to two adjacent blocks among the plurality of blocks, the barrier panel may be configured in a structure in which the barrier block and the slit block are alternately arranged repeatedly.

Among the plurality of fine patterns, fine patterns to which the first converted signal is applied may constitute the slit block, and fine patterns to which the second converted signal is applied may constitute the barrier block.

The barrier panel may be disposed such that the separation distance from the image panel increases from the edge portion to the center portion.

According to the present invention, stable stereoscopic images can be realized by changing the barrier panel in response to a change in the viewing angle (position) of the observer. In addition, it is possible to configure a variable barrier panel that can implement a stable three-dimensional image by physically or electrically changing the barrier panel.

1 is a view showing that a three-dimensional image is implemented by a conventional barrier-type 3D display device.
2 is a view showing that a three-dimensional image is implemented by the stereoscopic image display apparatus according to the first embodiment of the present invention.
FIG. 3 is a block diagram illustrating a barrier panel converter of the stereoscopic image display device of FIG. 2.
4 to 7 illustrate examples of various arrangements of barrier panels of the stereoscopic image display apparatus according to the first and second embodiments of the present invention.
8 illustrates a configuration of a barrier panel constituting a stereoscopic image display apparatus according to a second embodiment of the present invention.
9 is a block diagram of a barrier panel setting unit constituting a stereoscopic image display apparatus according to a second embodiment of the present invention.
10 to 12 are diagrams illustrating that a 3D image is implemented by a stereoscopic image display apparatus implemented by applying a barrier panel set as shown in FIGS. 8A, 8B, and 8C.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings without intending to intend to provide a thorough understanding of the present invention to a person having ordinary skill in the art to which the present invention belongs.

FIG. 2 is a diagram illustrating a three-dimensional image implemented by a stereoscopic image display apparatus according to a first embodiment of the present invention, and FIG. 3 is a block diagram of the barrier panel converter 310 of the stereoscopic image display apparatus of FIG. Is shown.

2 and 3, the stereoscopic image display apparatus according to the first embodiment of the present invention includes an image panel 330 and a barrier panel 320, and the barrier panel 320 is light A slit that is transmitted and a barrier that blocks the light are repeatedly arranged and disposed in front of the image panel 330. The barrier panel 320 is for converting an image emitted from the image panel 330 into a stereoscopic image, and the barrier panel 320 is controlled by the barrier panel converter 310.

The barrier panel converter 310 detects a position change of an observer and changes the position of the barrier panel 320 in response to the position change.

As shown in FIG. 2, the barrier panel 320 may be implemented to have the same distance from the image panel 330, and as shown in FIGS. 4 to 7, the barrier panels 120 and 220. The separation distance from the image panel 230 may be different from each other according to the position. Here, it is assumed that the barrier panels 120 and 220 of FIGS. 4 to 7 have a structure that can be implemented with the barrier panel 320 of FIG. 2.

The barrier panels 120 and 220 may be disposed such that the separation distance from the image panels 130 and 230 increases gradually from the edge portion to the center portion. In this case, the separation distance between the barrier panels 120 and 220 and the image panels 130 and 230 may be increased at a constant ratio by forming a step from the edge portion to the center portion as shown in FIGS. 4 and 6. You can also make it larger. In another embodiment, as shown in FIGS. 5 and 7, the barrier panels 120 and 220 have a predetermined curvature so that the separation distance from the image panels 130 and 230 is gradually increased from the edge portion to the center portion. May be

The width of each of the barriers constituting the barrier panels 120 and 220 may be equal to or larger than the width of each of the plurality of slits. 4 and 5, the width of each of the plurality of barriers is the same as or similar to the width of each of the plurality of slits, and FIGS. 6 and 7 show the width of each of the plurality of barriers. This is the case where the slits are configured to be larger than the width of each.

On the other hand, as shown in FIG. 2, when the viewer's viewing angle is out of a specific position, a part of the image is covered by a barrier constituting the barrier panel 320 so that a stereoscopic image is not realized. For example, when a viewer's viewing angle moves from the positions RE and LE to the positions RE 'and LE', part of the image is obscured by the barrier, so that stable stereoscopic images are not maintained.

Therefore, the barrier panel converter 310 is provided in one embodiment of the present invention in order to maintain a stable stereoscopic image even with a change in the position of the observer.

The barrier panel converter 310 detects a position change of the observer and changes the position of the barrier panel 320 in response to the position change. For example, in FIG. 2, when the observer's viewing angle is moved from the positions of RE and LE to the positions of RE 'and LE', the observer detects this and moves the position of the barrier panel 320 to the left by W to stabilize the stereoscopic image. Is to keep this.

The barrier panel converter 310 includes a position detector 312, a panel controller 314, and a barrier panel driver 316.

The position detecting unit 312 is for detecting the position of the observer, and includes at least one position detecting sensor to generate the position detecting signal S1 of the observer. An infrared camera, a digital camera, or an ultrasonic transceiver may be used as the position detection sensor, and a iris recognition sensor, a face recognition sensor, and the like, which are well known to those skilled in the art, may be used. .

When the position sensor is an infrared camera or a digital camera, the distance and movement of the observer may be detected by using the shape of the observer detected by the camera, and when the position sensor is an ultrasonic transceiver, at least one ultrasonic wave transmitted from the ultrasonic transceiver Is reflected by the observer, and the reflected ultrasound is received and analyzed by the ultrasonic transceiver again so that the observer's distance and movement can be sensed. In this case, in order to accurately detect the position of the observer's eye (viewing angle), a separate program is required to calculate the position of the observer's eye or the viewing angle through detailed information on the shape and movement of the observer.

In the case of using the iris recognition sensor or the face recognition sensor, it may be easier to extract or calculate the position or viewing angle of the observer's eyes.

The panel controller 314 calculates an optimal position of the barrier panel 320 to maintain a stable stereoscopic image according to the position change of the observer in response to the detection signal S1 of the position detecting unit 312. Will be set. The barrier panel driving signal D1 is generated by calculating a moving direction and a moving distance of the barrier panel according to the set position. Here, the optimal barrier panel position calculation and setting for maintaining a stable stereoscopic image may be possible by calculating a level of the stereoscopic image according to each position based on a number of experiments and simulation results and implementing it as a separate program.

Typically, the barrier panel 320 is generally set to be movable only in the left and right directions while maintaining the same distance from the image panel 330. However, depending on the situation, it may be set to be movable in the vertical direction so as to vary the separation distance from the image panel 330. That is, the barrier panel 320 may be implemented to move in all directions, including left and right directions and up and down directions, in order to realize a stable stereoscopic image.

The barrier panel driver 316 moves the barrier panel 320 to a position set by the panel controller 314 in response to the barrier panel driving signal D1. To this end, the barrier panel driver 316 may include driving units such as a motor. The drive units may be used drive units or drive means that are well known to those skilled in the art.

For driving, the barrier panel 320 should have a structure capable of driving, and should have a structure that is not deformed or damaged by driving.

Referring to the operation of the barrier panel converter 310, for example, as shown in FIG. 2, when the viewer's viewing angle is moved from the positions of RE and LE to the positions of RE 'and LE', the position sensing unit In 312, the position of the observer is sensed to generate the position detection signal S1. The panel controller 314 calculates and sets an optimal barrier panel position for positioning a stable stereoscopic image in response to the position detection signal S1. Assuming that the position where the barrier panel 320 is moved by the distance of 'W' in the right direction is calculated as the optimal position by the panel controller 314, the panel controller 314 determines the barrier panel according to the set position. The barrier panel driving signal D1 is generated by calculating the moving direction and the moving distance of the 320.

The barrier panel driver 316 moves the barrier panel 320 by a distance of 'W' in the right direction in response to the barrier panel driving signal D1.

As a result, stable stereoscopic images can be maintained despite the change in the position of the observer.

  8 illustrates a configuration of a barrier panel constituting a stereoscopic image display apparatus according to a second exemplary embodiment of the present invention, and FIG. 9 illustrates a barrier panel setting unit constituting a stereoscopic image display apparatus according to a second exemplary embodiment of the present invention. A block diagram of 410 is shown.

The stereoscopic image display apparatus according to the second embodiment of the present invention includes an image panel 430 and a barrier panel 420, wherein the barrier panel 420 is located in front of the image panel 430 to provide the image. The image output from the panel 430 is converted into a stereoscopic image.

As shown in FIGS. 8A, 8B and 8C, the barrier panel 420 is repeatedly arranged with a plurality of fine patterns P1, P2, P3... Pn, collectively referred to as 'P'. It is formed into a structure. Here, each of the plurality of fine patterns P may be made of a material that is converted into a transparent pattern or an opaque pattern in response to an electrical conversion signal (C1, C2 .... Cn, commonly referred to as 'C'). have.

For example, each of the plurality of fine patterns P may be a transparent pattern when a first conversion signal is applied, and may be converted into an opaque pattern when a second conversion signal is applied. The first converted signal may be an on signal at a predetermined level and the second converted signal may be an off signal. The existence of a pattern (or an electrode or a panel) that is converted into a transparent pattern or an opaque pattern in response to an electrical signal is well known to those skilled in the art, and thus, further description thereof will be omitted.

Each of the plurality of fine patterns P is divided into a barrier and a slit according to the type of the conversion signal applied. That is, when the first conversion signal is applied to the micropatterns P, the slit functions, and when the second conversion signal is applied, it functions as a barrier. Here the barrier passes light through the slit without passing light. For reference, the conventional barrier panel has a structure in which the barrier and the slit are alternately arranged.

In the second embodiment of the present invention, as shown in FIGS. 8A, 8B, and 8C, one fine pattern (for example, P1) or a plurality of fine patterns (for example, P1, P2, and P3) adjacent to each other are illustrated. Set a plurality of blocks by using) as one block. That is, it is also possible to set blocks as many as the number of fine patterns by using one fine pattern as one block, and a plurality of blocks by using two or three fine patterns (or three or more fine patterns) as one block. It is possible to set them up. In some cases, some blocks may be set to two fine patterns, and some blocks may be set to three fine patterns.

Setting of the plurality of blocks may be variously performed as necessary to implement stable stereoscopic images.

Hereinafter, the present invention will be described on the assumption that three fine patterns P form one block.

As shown in FIGS. 8A, 8B and 8C, when the plurality of blocks is set, the plurality of blocks are divided into a barrier block B or a slit block S. FIG. Here, the barrier block B and the slit block S may be set to be adjacent to each other, the barrier block B corresponds to a barrier of a general barrier panel, and the slit block S corresponds to a slit of a general barrier panel. .

The barrier block B and the slit block S may be set by applying the conversion signal C. For example, it is possible to set the slit block S when the first converted signal is applied among the plurality of blocks, and set the barrier block B when the second converted signal is applied. To this end, even when one block is composed of a plurality of fine patterns P, the conversion signals C applied to the plurality of fine patterns P constituting one block must all be the same type of conversion signals. something to do. That is, a second conversion signal must be applied to all of the one or more fine patterns P constituting the barrier block B, and to all of the one or more fine patterns P constituting the slit block S. The first converted signal must be applied.

In the case of the drawing, since one block is composed of three fine patterns P, the conversion signals C applied to each of the fine patterns P constituting one block should all be the same kind of signal.

The barrier block B and the slit block S are not fixed but are set fluctuating in response to a change in the position of the observer. This is possible by the barrier panel setting unit 410 shown in FIG.

The barrier panel setting unit 410 detects a position change of an observer and resets the plurality of blocks B and S constituting the barrier panel 420 in response to the position change. The positions of the barrier block B and the slit block S constituting the 420 are changed.

The barrier panel setting unit 410 includes a position detecting unit 412, a block setting unit 414, and a fine pattern conversion signal generating unit 416.

The position detecting unit 412 is for detecting the position of the observer and includes at least one position detecting sensor to generate the position detecting signal S1 of the observer. An infrared camera, a digital camera, or an ultrasonic transceiver may be used as the position detection sensor, and a iris recognition sensor, a face recognition sensor, and the like, which are well known to those skilled in the art, may be used. .

When the position sensor is an infrared camera or a digital camera, the distance and movement of the observer may be detected by using the shape of the observer detected by the camera, and when the position sensor is an ultrasonic transceiver, at least one ultrasonic wave transmitted from the ultrasonic transceiver Is reflected by the observer, and the reflected ultrasound is received and analyzed by the ultrasonic transceiver again so that the observer's distance and movement can be sensed. In this case, in order to accurately detect the position of the observer's eye (viewing angle), a separate program is required to calculate the position of the observer's eye or the viewing angle through detailed information on the shape and movement of the observer.

In the case of using the iris recognition sensor or the face recognition sensor, it may be easier to extract or calculate the position or viewing angle of the observer's eyes.

 The block setting unit 414 generates a reset signal for resetting the fine patterns P to the barrier block B and the slit block S in response to the position detection signal of the position detecting unit 412. do.

The fine pattern conversion signal generation unit 416 generates the first conversion signal or the second conversion signal corresponding to the blocks set in response to the reset signal, and applies it to each of the plurality of fine patterns. The panel 420 will be reconfigured. Of course, if the observer's position does not change, resetting of the block does not occur.

Hereinafter, an operation of the barrier panel setting unit 410 will be described with reference to FIG. 8.

The barrier panel 420 has a structure in which a plurality of fine patterns P are continuously arranged repeatedly, and as an example, three fine patterns P adjacent to each other are formed as one barrier block B or a slit. Having a structure forming a block (S) has already been described.

For convenience of explanation, assume that the barrier block B and the slot block S are set as shown in FIG. 8A. In this case, the barrier block B includes first to third fine patterns P1, P2, and P3, and the slit block S includes fourth to sixth fine patterns P4, P5, and P6. The three fine patterns P alternately have alternating (alternative) structures in which the barrier block B and the slit block S are set. In this case, the conversion signals C1, C2, and C3 should be second conversion signals, and the conversion signals C4, C5 and C6 should be first conversion signals.

At this time, if it is recognized by the position detection signal (S1) that the position of the observer slightly changed to the right, the block setting unit 414 resets the barrier block (B) and the slot block (S).

Depending on the degree of change in the position of the observer, the degree of resetting of the barrier block (B) and the slot block (S) is different. When the degree of variation is small, as shown in FIG. 8B, only one fine pattern P is changed to reset the barrier block B and the slot block S. FIG. That is, as shown in FIG. 8B, the barrier block B is formed of the second to fourth fine patterns P2, P3, and P4, and the slit block S is the fifth to seventh fine patterns ( The three fine patterns P are alternately (in turn) reset such that the barrier blocks B and the slit blocks S are composed of P5, P6, and P7. In this case, the conversion signals C2, C3, and C4 applied to the second to fourth fine patterns P2, P3, and P4 should be second conversion signals, and the fifth to seventh fine patterns P5, P6, The conversion signals C5, C6, and C7 applied to P7 should be first conversion signals. In addition, since the first fine pattern P12 forms a slit block S, a first converted signal should be applied.

In this case, the first fine pattern P1 and the seventh fine pattern P7 constitute the barrier block B in FIG. 8A, but in the case of FIG. 8B, the slit block S is constituted. In the case of the fine pattern P4, the slit block S is configured in the case of FIG. 8A, but the barrier block B is configured in the case of FIG. 8B.

If the variation of the position is large, as shown in FIG. 8C, the two fine patterns P are changed to reset the barrier block B and the slot block S. FIG. That is, as shown in FIG. 8C, the barrier block B is composed of the third to fifth fine patterns P3, P4 and P5, and the slit block S is the sixth to eighth fine patterns P6. The three fine patterns P are alternately (in turn) reconfigured so as to be the barrier block B and the slit block S.

In this case, the conversion signals C3, C4 and C5 applied to the third to fifth fine patterns P3, P4 and P5 should be second conversion signals, and the sixth to eighth fine patterns P6, P7, The conversion signals C6, C7, and C8 applied to P8 should be first conversion signals. In addition, since the first and second fine patterns P1 and P2 form a slit block S, a first converted signal should be applied.

In this case, the first fine pattern P1 and the second fine pattern P2 constitute the barrier block B in FIG. 8A, but the slit block S in FIG. 8B. In the case of the fine pattern P4 and the fifth fine pattern P5, the slit block S is configured in the case of FIG. 8A, but the barrier block B is configured in the case of FIG. 8B.

When the position of the observer is gradually changed, the barrier panel 420 is sequentially reset from the case of FIG. 8A to the case of FIG. 8B and to FIG. 8C so that a stable stereoscopic image is realized.

In other cases, when the observer moves to the left side, the barrier panel may be reset in the case of FIGS. 8C to 8B and 8A to realize a stable stereoscopic image.

10 to 12 are diagrams illustrating that a 3D image is implemented by a stereoscopic image display apparatus implemented by applying the barrier panel 420 set as illustrated in FIGS. 8A, 8B, and 8C.

As shown in FIG. 10, in a state where the observer's position (viewing angle) does not change, as shown in the general case (for example, FIG. 1), an image emitted to the image panel 430 may be divided into a barrier block (B) and a hatched portion. Through the slit block (S) is converted into a stereoscopic image.

However, as shown in FIGS. 11 and 12, when the viewer's viewing angle is out of a specific position, part of the image resets the barrier block B and the slit block S constituting the barrier panel 420. . That is, in the case of FIG. 11, as in the case of FIG. 8B, a stable stereoscopic image is realized by resetting the barrier panel 420, and in the case of FIG. 12, the barrier panel 420 is reset as in the case of FIG. 8C. Will be implemented.

Here, the barrier panel 420 may be implemented to have the same distance from the image panel 430 as shown in FIGS. 10 to 12, and the barrier panel 420 may be the same as illustrated in FIGS. 4 to 7. The separation distance between the panels 120 and 220 and the image panel 230 may be different from each other depending on the position.

Here, it is assumed that the barrier panels 120 and 220 of FIGS. 4 to 7 have the barrier panel structures of FIGS. 8A, 8B, and 8C.

The barrier panels 120 and 220 may be disposed such that the separation distance from the image panels 130 and 230 increases gradually from the edge portion to the center portion. In this case, the separation distance between the barrier panels 120 and 220 and the image panels 130 and 230 may be increased at a constant ratio by forming a step from the edge portion to the center portion as shown in FIGS. 4 and 6. You can also make it larger. In another embodiment, as shown in FIGS. 5 and 7, the barrier panels 120 and 220 have a predetermined curvature so that the separation distance from the image panels 130 and 230 is gradually increased from the edge portion to the center portion. May be

The width of each of the barriers constituting the barrier panels 120 and 220 may be equal to or larger than the width of each of the plurality of slits. 4 and 5, the width of each of the plurality of barriers is the same as or similar to the width of each of the plurality of slits, and FIGS. 6 and 7 show the width of each of the plurality of barriers. This is the case where the slits are configured to be larger than the width of each.

As described above, according to the present invention, stable stereoscopic images can be realized by changing the barrier panel in response to a change in the viewing angle (position) of the observer. In addition, it is possible to configure a variable barrier panel that can implement a stable three-dimensional image by physically or electrically changing the barrier panel.

The description of the above embodiments is merely given by way of example with reference to the drawings for a more thorough understanding of the present invention, and should not be construed as limiting the present invention. In addition, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the basic principles of the present invention.

120,220,320,420: Barrier Panel 130,230,330,430: Image Panel
310: barrier panel conversion unit 410: barrier panel setting unit
P: Fine Pattern B: Barrier Block
S: Slit block C: Conversion signal

Claims (8)

In the stereoscopic image display device:
An image panel for emitting a predetermined image;
A plurality of barriers for blocking an image of the image panel and a plurality of slits for transmitting the image of the image panel are disposed in front of the image panel in a structure in which the barrier and the slits are alternately arranged and arranged in front of the image panel. A barrier panel for converting an image emitted from the image into a stereoscopic image;
It is provided with a barrier panel converter for detecting a change in the position of the observer, and maintaining a stable stereoscopic image by changing the position of the barrier panel in response to the position change,
And the barrier panel is arranged such that a distance from the edge of the barrier panel increases from the edge portion to the center portion thereof.
The method according to claim 1, wherein the barrier panel converter,
A position detector for detecting a position of the observer and generating a detection signal;
A barrier panel controller configured to calculate and set a position of the barrier panel for maintaining a stable stereoscopic image and to generate a barrier panel driving signal for moving the barrier panel to a set position in response to a detection signal of the position sensing unit;
And a barrier panel driver for moving the barrier panel to a predetermined position in response to the barrier panel driving signal. delete In the stereoscopic image display device:
An image panel for emitting a predetermined image;
When a first conversion signal is applied to the front of the image panel, a plurality of fine patterns which become transparent patterns and a second opaque pattern when a second conversion signal is applied are successively arranged, and one fine pattern or a plurality of fine patterns adjacent to each other are disposed. A barrier panel for converting an image output from the image panel into a stereoscopic image by setting a plurality of blocks each having a single block and dividing the plurality of blocks into a barrier block or a slit block; ;
A barrier that changes the position of the barrier block and the slit block constituting the barrier panel by sensing a change in the observer's position and resetting the plurality of blocks constituting the barrier panel in response to the position change. It has a panel setting part,
And the barrier panel is arranged such that a distance from the edge of the barrier panel increases from the edge portion to the center portion thereof.
The method of claim 4, wherein the barrier panel setting unit,
A position sensing unit for sensing a position of the observer and generating a position sensing signal;
A block setting unit providing a reset signal for resetting the plurality of fine patterns into a barrier block and a slit block in response to the position detection signal of the position detection unit;
A fine pattern conversion signal generation unit configured to reconstruct the barrier panel by generating the first conversion signal or the second conversion signal corresponding to the set blocks in response to the reset signal, and applying the first conversion signal or the second conversion signal to each of the plurality of fine patterns Stereoscopic display device characterized in that.
The method according to claim 4 or 5,
By applying different conversion signals to two adjacent blocks among the plurality of blocks, the barrier panel is configured such that the barrier block and the slit block are alternately arranged repeatedly. Stereoscopic image display device.
The method according to claim 6,
The fine patterns of the plurality of fine patterns to which the first converted signal is applied constitute the slit block, and the fine patterns to which the second converted signal is applied constitute the barrier block. .
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