KR100417656B1 - Apparatus for displaying three dimensional picture using liquid crystal panel - Google Patents

Abstract

An apparatus for implementing a stereoscopic image according to the present invention calculates the period and width of a slit by using a liquid crystal block in which at least two liquid crystal panels on which slits are formed are stacked, and the number of images grasped by the image information analyzing means, and the observer One of the liquid crystal panel of the liquid crystal block using the slit control means for grasping the angle and distance between the display and the display to calculate the distance information between the observer and the display and the angle information of the observer for the display; It includes a liquid crystal panel driving means for selecting a liquid crystal panel of the drive, and driving so that the slit is formed at the set position of the selected liquid crystal panel, it is possible to maintain the stereoscopic viewing region naturally continuous even if the viewer moves to the front, rear, left and right.

Description

Apparatus for displaying three dimensional picture using liquid crystal panel

The present invention relates to a stereoscopic image implementing apparatus, and more particularly, by stacking a plurality of liquid crystal panels, and forming a slit in the selected liquid crystal panel, a stereoscopic image that can maintain a stereoscopic region naturally even if the viewer moves back, front, left, and right. An implementation device.

In general, a binocular parallax type stereoscopic image display device is a non-auto stereo scope method that requires a special mechanical device (eg, shutter glass, polarizing filter, HMD, etc.) to the human eye in order to observe a stereoscopic image. It can be divided into auto stereo scope method (for example, lenticular lens method, parallax barrier method, etc.) that can observe stereoscopic images with the naked eye without attaching a special mechanical device to the eye. have.

Among the non-auto stereo scope methods, when wearing glasses using a liquid crystal shutter, there are disadvantages such as tired eyes due to flickering phenomenon or inconvenience and inconvenience of wearing glasses, and when wearing sunglasses It is difficult to improve the three-dimensional feeling, and when the glasses are taken off, color adaptability of the left and right eyes is different, which may cause a burden on object recognition.

Among the auto stereo scope methods, a method in which a lenticular lens sheet is attached to a display pixel to separate an image into left and right eyes by using a refraction angle of the lenticular lens has a disadvantage in that a stereoscopic region is very narrow.

In particular, when observing two-dimensional information, which occupies most of the contents, there is a disadvantage that the two-dimensional image cannot be realized as the original information due to the refraction characteristics of the lenticular lens, and thus requires precision or image information such as numbers and letters. In this case, distortion occurs because it is difficult to realize the original two-dimensional input information as it is.

Therefore, since more pixels are required to properly display the 2D input information, when the same size screen is compared with the 2D image information before attaching the lenticular lens, a part may not be seen.

In addition, among the auto stereo scope method, the parallax barrier method using a slit is a device for observing three-dimensional stereoscopic images and does not refract light with the curvature of the lens itself like a lenticular lens, It operates by the same principle as the lenticular lens method in that only the light in the direction including the necessary information is separated by the left and right eyes so as to control the incident angle or the exit angle.

As a slit commonly used in this manner, a sheet consisting of striped pin holes is formed. When two-dimensional image information is input, the black band (opaque band) covers the screen of the display at regular intervals. There is a disadvantage that it is difficult to observe the original information in two dimensions, there is a disadvantage that the stereoscopic region is narrow.

In other words, the auto stereo scope type lenticular lens method and parallax barrier method use the parallax of both eyes to separate only the information corresponding to the left and right eyes so that the normal stereoscopic image can be observed at a specific angle and a certain distance. can do.

If the observer moves the viewpoint from side to side, the image appears to be a normal stereoscopic image (regional region), and at some point, the two images overlap (surface region), and if the viewpoint moves to the side, it should be protruded. And the part that needs to be entered upside down appears.

Also, if the viewpoint is moved back and forth with respect to the display at an angle (position) where normal stereoscopic observation is possible, normal stereoscopic image observation is possible within a certain distance range. There is a problem.

In particular, as the size of the pixel unit is reduced for the high resolution of the display, there is a problem in that the distance between the minimum stereoscopic viewing distance and the maximum stereoscopic viewing distance capable of stereoscopic observation becomes shorter.

In addition, the lenticular lens method or the parallax barrier method has a disadvantage in that the three-dimensional stereoscopic image and the two-dimensional image are adjusted to an arbitrary size and cannot be observed at the same time.

An object of the present invention is to maintain a stereoscopic focal point continuously and to enlarge a stereoscopic region even when the observer's viewpoint moves back and forth.

Another object of the present invention is to maintain the stereoscopic focal point continuously and to enlarge the stereoscopic region even when the observer's viewpoint moves from side to side.

Still another object of the present invention is to set and observe the two-dimensional image portion and the three-dimensional image portion separately.

Still another object of the present invention is to provide a stereoscopic image by installing it externally apart from the display device.

1 is a block diagram showing an embodiment of a stereoscopic image forming apparatus according to the present invention;

2A and 2B are conceptual views showing the relationship of the distance between the display and the slit according to the position of the observer.

3 is a conceptual diagram illustrating a minimum stereoscopic region, an optimal stereoscopic region, and a longest stereoscopic region.

4A and 4B are conceptual views for calculating the minimum stereoscopic distance and the longest stereoscopic distance.

5A, 5B and 5C are conceptual views showing that slits are formed in a suitable liquid crystal panel according to the distance between an observer and a display.

6 is a conceptual diagram illustrating that a stereoscopic vision region is changed when a stereoscopic image forming apparatus uses fixed slits.

7A and 7B are conceptual views illustrating that the position of the slits formed in the liquid crystal panel of the stereoscopic image forming apparatus according to the present invention is changed as the stereoscopic viewing region is changed.

8 is a conceptual diagram illustrating a case where a transparent band and an opaque band of a liquid crystal panel of the stereoscopic image forming apparatus according to the present invention are divided into three regions.

9 is a conceptual view showing that the position of the slit formed in the liquid crystal panel of the stereoscopic image forming apparatus according to the present invention is changed as the stereoscopic region is changed.

10 is a conceptual diagram illustrating a screen in which a stereoscopic image forming apparatus according to the present invention forms a stereoscopic image portion and a two-dimensional image portion differently.

FIG. 11 is a block diagram showing another example of a stereoscopic image forming apparatus according to the present invention, wherein a liquid crystal panel is provided between a display and a backlight; FIG.

12 is a block diagram showing another example of a stereoscopic image forming apparatus according to the present invention, which drives a liquid crystal panel by manipulation of an observer.

FIG. 13 is a perspective view illustrating a case in which a stereoscopic image forming apparatus according to the present invention is attached to a display device in an external form; FIG.

<Description of Symbols for Major Parts of Drawings>

1 liquid crystal panel 2 image information analysis unit

3: slit control unit 4, 40: liquid crystal panel drive unit

5: display 6: backlight

7: observer 8: infrared detector

100: three-dimensional image portion 110: two-dimensional image portion

200: focus adjustment device

In accordance with one aspect of the present invention, there is provided a stereoscopic image implementing apparatus including: a liquid crystal block in which at least two liquid crystal panels on which slits are formed are stacked; Calculates the period and width of the slit using the number of images identified by the image information analyzing means, and calculates the distance information between the observer and the display and the observer angle information on the display by grasping the angle and the distance between the observer and the display. Slit control means; And liquid crystal panel driving means for selecting one liquid crystal panel among the liquid crystal panels of the liquid crystal block using information calculated by the slit control means, and driving the slits to be formed at a predetermined position of the selected liquid crystal panel. It is characterized by.

The above and other objects and features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Technical principles of the present invention, for general displays (e.g. LCD, PDP, flat panel CRT, etc.), by opening and closing the electrical signal to the liquid crystal panel to maintain the vertical line in a transparent or opaque state vertical lattice (vertical lattice) A binocular parallax type stereoscopic image realization apparatus, in which two or more liquid crystal panels made of pixels smaller than the display pixel units are overlapped and installed between the front portion of the display or the display and the backlight by using a method capable of forming a slit of a shape. This allows the slits formed by the liquid crystal panel to be simultaneously changed back, front, left, and right, so that when the observer moves the observation point forward and backward with respect to the display, it is positioned at a position where the optimal focus can be maintained among the multiple liquid crystal slit panels which are installed in two or more layers. Move the slit to the corresponding liquid crystal panel to use the viewpoint from a short distance to a long distance. In addition, the stereoscopic area can be enlarged by continuously maintaining stereoscopic focus, and at the same time, when an observer shifts the viewpoint from side to side, the slit of a suitable liquid crystal panel among the multiple liquid crystal panels is slightly stepped to the left and right to steer the stereoscopic area. It is characterized by being able to keep it naturally continuous.

In addition, the slit can be formed only on a part of the liquid crystal panel so that the display can be arbitrarily divided into a three-dimensional image providing area and a two-dimensional image providing area to simultaneously observe and work on the two-dimensional image without distorting the three-dimensional image. Can be.

According to an embodiment of the stereoscopic image forming apparatus according to the present invention shown in FIG. 1, two or more liquid crystal panels 1 (in this case, three liquid crystal panels 1) may have a slit used in the Palalex barrier method of an auto stereo scope method. Is a stereoscopic image implementing device formed by attaching the front panel to the front surface of the display 5, and the position of the observer 7 is detected by the infrared sensor 8 and automatically two or more liquid crystals. A stereoscopic image forming apparatus is formed by setting a position where slits are formed in one liquid crystal panel among panels.

The three-dimensional image implementing apparatus shown in FIG. 1 analyzes three liquid crystal panels 1 forming slits and image data PIC to grasp the number of images, and grasps image data PIC based on a vertical line. Cycle of slits using the image information de-multiplex unit 2 which is alternately outputted to the display 5 by the number of images obtained, and the image information DES grasped by the image information analyzer 2. And the distance between the display 5 and the liquid crystal panel 1 in which the slit is formed by receiving the calculated information and the width information and the position information DET of the observer 7 detected by the infrared detector 8. The slit control unit 3 outputs a control signal CON including information calculated by calculating the angle of the observer with respect to the plurality, and the control signal CON includes information calculated by the slit control unit 3. To form a slit at an appropriate position of one of the liquid crystal panels The liquid crystal panel driver 4 is configured.

The image information analysis unit 2 analyzes the image data PIC to determine how many images are formed in the two-dimensional view, and alternately the image data PIC by the number of images determined based on the vertical line of the display 5. ) Is output to the display 5, and the grasped image information DES is output to the slit control unit 3.

For example, in the case of a two-eye image, left and right image information are alternately input for odd and even columns, and in the case of a three-eye image, a right image for the 1, 4, 7, 10 ..., (3n-1) sequences Information, the center image information for sequence 2, 5, 8, 11, ..., (3n-2) and the left image information for sequence 3, 6, 9, 12, ..., (3n) In the case of four rest, four images are sequentially inputted with (1, 2, 3, 4), (5, 6, 7, 8), ....

The slit control unit 3 calculates the period and width of the slit formed by the liquid crystal panel 1 according to the image information DES output from the image information analysis unit 2, and is detected by the infrared detector 8. According to the positional information DET of the observer 7, a suitable distance between the liquid crystal panel 1 forming the slit and the display 5 is calculated, and the angle of the viewing point of the observer 7 with respect to the display 5 is determined. Is calculated and the control signal CON including the result of the calculation is output to the liquid crystal panel driver 4.

The liquid crystal panel driver 4 separates the image corresponding to the left eye and the right eye so that the image input to the display 5 can be three-dimensionally observed according to the control signal CON output from the slit controller 3. Among the plurality of liquid crystal panels 1, slits are formed in the liquid crystal panel 1 corresponding to the result calculated by the slit control unit 3. At this time, the slit is formed at a position corresponding to the result calculated by the slit control unit 3. Form.

A method of forming a slit at an appropriate position of one liquid crystal panel 1 among the plurality of liquid crystal panels 1 will be described in detail as follows.

First, as the observer 7 moves back and forth the observation viewpoints p and p 'at a constant angle with respect to the display 5, as shown in FIGS. 2 (a) and 2 (b), the display ( 5) The distances d and d 'of the liquid crystal panel 1 forming the slit must also be changed so that the left and right image information L and R are accurately incident on the left and right eyes LE and RE to enable normal stereoscopic image observation. do.

Here, the relationship between the distances p and p 'of the observer 7 with respect to the display 5 and the distances d and d' of the liquid crystal panel 1 forming a slit for the display 5 are as follows. Obtained by Equation 1].

[Equation 1]

Where s is the width of the pixels of the display 5 and o is the left and right eye spacing (typically 65 mm).

For example, assuming that the distance p of the observer 7 to the display 5 is 400 mm and the width of the pixel is 0.2 mm, the liquid crystal panel 1 forms a slit for the display 5. The distance d is about 1.23 mm and the observer 7 backs off, forming a slit for the display 5 when the distance p 'of the observer 7 with respect to the display 5 is 600 mm. Since the distance d 'of the liquid crystal panel 1 is about 1.84 mm, if the viewing point of the display 5 is far, the position of the liquid crystal panel 1 in which the slit is formed for the display 5 accordingly. You must also move away to see normal stereoscopic images.

In reality, even though the widths of the pixels forming the display 5 and the slits are not 0, and the distance between the pixels is not 0, even though the slits are fixedly fixed at a predetermined distance with respect to the display 5, as shown in FIG. In addition, since the minimum stereoscopic distance, the optimal stereoscopic distance and the longest stereoscopic distance exist, normal stereoscopic image observation is possible within a certain distance between the minimum stereoscopic distance and the longest stereoscopic distance.

For example, when the width s of the pixel is 0.2 mm, the dead space between the pixels is 0.02 mm, and the optimal stereoscopic viewing distance Dcom is 600 mm, referring to the conceptual diagrams of FIGS. 4A and 4B, The minimum stereoscopic viewing distance (Dmin) and the longest stereoscopic viewing distance (Dmax) are obtained by the following Equations 2 and 3, respectively.

[Equation 2]

[Equation 3]

Where d is the distance between the display 5 and the slit, s is the width of the pixel, b is the dead space, w is the width of the transparent strip of the slit, o is the left and right eye spacing (typically 65 mm) ) Respectively.

Thus, since the minimum stereoscopic viewing distance Dmin is about 462 mm and the longest stereoscopic viewing distance Dmax is about 667 mm, even if the observer 7 moves back and forth within the range of about 200 mm, the 3D stereoscopic image is normally displayed. Observable, but outside this range, normal three-dimensional stereoscopic images cannot be observed.

Therefore, the stereoscopic image forming apparatus of the present invention forms slits in the liquid crystal panel placed at a proper position at the time of observation so that the optimum stereoscopic image can be observed when the distance between the viewer 7 and the display 5 changes, The remaining liquid crystal panels all remain transparent so that the stereoscopic region is naturally maintained continuously with respect to the viewing distance.

5A, 5B, and 5C are views showing a liquid crystal panel that forms a slit and a liquid crystal panel that maintains a transparent state when the viewing point of the observer 7 on the display 5 changes to p1, p2, and p3, respectively. .

As described above, a method of setting the width between the liquid crystal panels when two or more liquid crystal panels are overlapped is described below.

First, using the distance dcom between the display 5 and the slits with respect to the optimal stereoscopic distance Dcom, the standard liquid crystal panel 1b for forming a slit at a position corresponding to the optimal stereoscopic distance Dcom is selected. Install.

Here, the distance dcom between the display 5 corresponding to the optimal stereoscopic viewing distance Dcom and the standard liquid crystal panel 1b for forming the slit is obtained by the following Equation 4.

[Equation 4]

Here, assume that the optimal stereoscopic viewing distance Dcom is 600 mm for the display 5 where o is typically 65 mm in the left and right eye intervals, s is 0.2 mm in the width of the pixels, and b is 0.02 mm in the distance between the pixels. do.

The standard liquid crystal panel 1b installed as described above has the minimum stereoscopic distance Dmin and the longest stereoscopic distance Dmax as described above, so that the minimum stereoscopic distance Dmin is determined based on the optimal stereoscopic distance Dcom. The second liquid crystal panel 1a is overlapped and installed within the ending point.

Similarly, within the point where the longest stereoscopic viewing distance Dmax ends, the third liquid crystal panel 1c is overlapped and installed.

When the liquid crystal panel is additionally installed, the stereoscopic viewing area is obtained by the standard liquid crystal panel 1b based on the optimal stereoscopic viewing distance Dcom and 600 mm as shown in Table 1 below. ), 462 mm, the longest stereoscopic viewing distance Dmax, and 667 mm can be expanded to a stereoscopic viewing area from a minimum of 321 mm to a maximum of 961 mm by additionally providing two liquid crystal panels 1a and 1c.

TABLE 1

division Minimum stereoscopic distance (Dmin) Optimum Stereoscopic Distance (Dcom) Maximum stereoscopic distance (Dmax) Liquid crystal panel 1a 321 mm 416 mm 462 mm Liquid crystal panel 1b 462 mm 600 mm 667 mm Liquid crystal panel (1c) 667 mm 865 mm 961 mm

In fact, rather than expanding the stereoscopic distance by installing an additional liquid crystal panel at the position connecting the minimum stereoscopic distance and the longest stereoscopic distance, it is necessary to install the liquid crystal panel multiplely with a certain margin overlapping within that range. Resolution can be improved.

In addition, since the viewing distance is different according to the size and shape of the display, a liquid crystal panel that is a standard capable of an optimal stereoscopic viewing area at a normal viewing distance is installed on the basis of this, and then the front and rear of the reference liquid crystal panel according to the purpose and need to be used. A plurality of liquid crystal panels can be stacked together.

On the other hand, as shown in Figure 6, in the display device for implementing a three-dimensional image with a fixed slit, when the observer 7 is moved left and right, the viewing point changes from side to side, the stereoscopic region is normally observed stereoscopic image From the possible stereoscopic region V, the stereoscopic region C in which the left and right images overlap and the reverse stereoscopic region I in which the sense of depth is reversed appear in sequence.

When the observer 7 moves from side to side to become the stereoscopic region C, a liquid crystal panel that forms slits as shown in FIG. 7A (here, the case where slits are formed in the standard liquid crystal panel 1b) By changing the positions of the transparent and opaque bands left and right, the stereoscopic region is continuously maintained.

In addition, when the observer 7 further moves left and right to become the inverted stereoscopic region I, as shown in FIG. 7B, the positions at which the transparent and opaque bands are formed are reversed from the positions at which the stereoscopic stereoscopic region V is formed. By maintaining the stereoscopic region continuously, the normal stereoscopic image can be observed.

Since the slit formed corresponding to the pixel size of the actual display has a constant width of 0 or more rather than a point, light entering the eye through the slit spreads out and the retina of the human eye is not a point. Therefore, an observer can observe a stereoscopic image even if the viewpoint moves a certain distance from side to side. However, when the size of the slit is reduced to increase the resolution than the theoretical calculation value, the stereoscopic region to the left and right of the observer for the fixed slit is reduced, and at the same time, the stereoscopic region becomes large. In this case, when the viewing point moves to the parasitic region, the transparent band portion must be able to change the left and right positions in small increments in a unit of 1/2 or less than the size of the transparent band width. Can be observed.

The stereoscopic image forming apparatus of the present invention is formed by dividing the transparent stripe portion and the opaque stripe portion into a plurality of pieces as shown in FIG. 8 to form the slits so that the positions thereof can be changed in a range smaller than the width of the slits. Here, the case where the transparent band part and the opaque band part are divided into three areas is shown as an example.

Therefore, when the observer moves from side to side to become a parasteric region and a reverse stereoscopic region, a transparent band portion and an opaque band portion formed as an area smaller than the width of the slit are shown in FIGS. 9A to 9D. By moving in units of one small area, continuous stereoscopic images can be observed.

FIG. 10 is a view illustrating a display screen implemented by separating the stereoscopic image region 100 and the two-dimensional image region 110.

When viewing a stereoscopic image in a certain portion 100 of the display 5 while observing or working with a two-dimensional image in the remaining display portion 110, the observer 7 arbitrarily moves to the desired position of the display. If the observer 7 wants to observe the movement while the observer 7 wants to change the size of the stereoscopic image, the slit of the liquid crystal panel is adapted to the position of the observer 7 only with respect to the portion 100 corresponding to the stereoscopic image area. The portion 110 corresponding to the remaining two-dimensional image region controls all of the liquid crystal panels in a transparent state so that the two-dimensional image can be observed without distortion.

FIG. 11 is a block diagram showing another embodiment of a stereoscopic image forming apparatus according to the present invention, which differs in that two or more liquid crystal panels 1 are installed between the display 5 and the backlight 6. The same operation is performed by the same components as in the embodiment of the stereoscopic image forming apparatus according to the present invention. That is, the slit interval w of the liquid crystal panel 1 is designed to be larger than the pixel interval s, and the display is performed. When the distance P between (5) and the observer 7 increases, the distance d between the liquid crystal panel 1 and the display 5 moves away from the observer 7, that is, toward the backlight 6, When the distance P between the display 5 and the observer 7 approaches, the distance d between the liquid crystal panel 1 and the display 5 moves closer to the display 5, i.e., toward the display 5. Stereoscopic images can be maintained.

FIG. 12 is a block diagram showing another embodiment of a stereoscopic image forming apparatus according to the present invention. When the observer 7 moves out of the viewing viewpoint and leaves the stereoscopic region, the observer may use a remote controller or the like to provide an arbitrary image. A signal may be output to the liquid crystal panel driver 40 to manually form a slit at an appropriate position of one of the two or more liquid crystal panels 1 to fit the stereoscopic region.

Accordingly, the stereoscopic image implementing apparatus shown in FIG. 12 does not require the infrared detector 8 and the slit control unit 3 used in the stereoscopic image implementing apparatus shown in FIG. 1, and the liquid crystal panel driver 4 is the observer 7. Is driven to form a slit at an appropriate position of one liquid crystal panel 1 out of two or more liquid crystal panels 1 in accordance with a control signal CHA output from an arbitrary device (e.g., a remote controller).

FIG. 13 is a perspective view illustrating an exemplary embodiment in which a stereoscopic image implementing apparatus of the present invention is externally attached to a general display apparatus.

The slits formed by the liquid crystal panel of the stereoscopic image forming apparatus of the present invention should be aligned so that the left and right images of the display can be accurately separated vertically. For this purpose, the slits formed in the front of the display are fixed and installed. ), The liquid crystal panel can be finely twisted left and right and up and down.

In this case, the test screen provided through the two-dimensional display is used to accurately match the focus so that the two-dimensional image and the three-dimensional image can be observed to be exactly matched.

As described above, the stereoscopic image display device according to the present invention is provided with at least two liquid crystal panels capable of forming slits in the form of vertical lattice between the front part of the display or the display and the backlight with respect to a general display device, By simultaneously changing the slit of the panel from side to side and at the same time to complexly respond to the observer's distance to the display and the viewing angle, the stereoscopic region can be naturally maintained even if the observer arbitrarily changes the viewpoint from side to side.

In addition, the slit can be formed only on a part of the liquid crystal panel, thereby arbitrarily dividing the display into a three-dimensional image providing region and a two-dimensional image providing region, so that the three-dimensional image and the two-dimensional image can be simultaneously observed without distortion.

In addition, since the liquid crystal panel attached to the front of the display can be easily attached in an external form, the cost can be reduced.

In addition, a preferred embodiment of the present invention is for the purpose of illustration, those skilled in the art will be able to various modifications, changes, substitutions and additions through the spirit and scope of the appended claims, such modifications and changes are the following claims It should be seen as belonging to a range.

Claims (13)

A stereoscopic image realization apparatus comprising image information analyzing means for analyzing a display and image information to grasp the number of images and alternately outputting the number of images determined based on a vertical line to the display. A liquid crystal block in which at least two liquid crystal panels on which slits are formed are stacked; Calculates the period and width of the slit using the number of images identified by the image information analyzing means, and calculates the distance information between the observer and the display and the observer angle information on the display by grasping the angle and the distance between the observer and the display. Slit control means; A liquid crystal panel driving means for selecting one liquid crystal panel among the liquid crystal panels of the liquid crystal block using the angle information and the distance information calculated by the slit control means, and driving the slits to be formed at a predetermined position of the selected liquid crystal panel; 3D image implementation device comprising a. The method of claim 1, The liquid crystal panel, A slit is formed by forming a band-shaped transparent region and an opaque region, wherein the slit is formed. The method of claim 2, And the transparent area and the opaque area are formed of a plurality of band-shaped areas having a size smaller than the size of a pixel of the display. The method of claim 1, And position detecting means for detecting an angle and a distance between the observer and the display. The method of claim 1, The liquid crystal panel drive means, According to the distance information calculated by the slit control means for the distance between the viewer and the display, a slit is formed in one liquid crystal panel of the two or more liquid crystal panels and the remaining liquid crystal panel maintains a transparent state Image implementation device. The method according to claim 1 or 5, The liquid crystal panel drive means, And changing the position of the slit in the liquid crystal panel in which the slit is formed according to the angle information calculated by the slit control means for the angle between the viewer and the display. The method of claim 1, The liquid crystal panel drive means, And a slit is formed only in a portion where a stereoscopic image is to be displayed on the liquid crystal panel of the liquid crystal block according to the information grasped by the image information analyzing means. A stereoscopic image realization apparatus comprising image information analyzing means for analyzing a display and image information to grasp the number of images and alternately outputting the number of images determined based on a vertical line to the display. A liquid crystal block in which at least two liquid crystal panels on which slits are formed are stacked; And a liquid crystal panel driving means controlled by an external control signal to form a slit in one of the liquid crystal panels of the liquid crystal block and the remaining liquid crystal panel to maintain a transparent state. The liquid crystal panel driving means of claim 8, wherein And changing the position of the slit of the liquid crystal panel in which the slit is formed by being controlled by the external control signal. The liquid crystal block of claim 1, wherein And a stereoscopic image implementing device installed on the front surface of the display. The liquid crystal block of claim 1, wherein And a stereo image display device installed between the display and the backlight. The liquid crystal block of claim 1, wherein And a stereoscopic image implementation device mounted on an exterior of the display. The method of claim 12, And a position adjusting means capable of focusing the two-dimensional image and the three-dimensional image to exactly match.