KR100552901B1 - Apparatus of 3-Dimension Autosteroscopic Picture Display - Google Patents

Abstract

The present invention relates to a three-dimensional image display device that allows a viewer to view a three-dimensional image without using three-dimensional glasses.

A stereoscopic image display apparatus according to the present invention includes a video signal input means for inputting a video signal, video signal converting means for converting the input video signal into a predetermined form, and display means for displaying an image corresponding to the converted video signal. And a color barrier disposed to correspond to the front surface of the display means to implement the color of the image.

Accordingly, the three-dimensional image display device according to the present invention eliminates the use of the three-dimensional glasses and implements the color of the three-dimensional image, thereby facilitating the viewer's convenience.

Description

Stereoscopic Image Display {Apparatus of 3-Dimension Autosteroscopic Picture Display}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic image display apparatus for displaying stereoscopic images, and more particularly, to a stereoscopic image display apparatus capable of viewing stereoscopic images without using stereoscopic glasses.

A stereoscopic image display apparatus using ordinary stereoscopic glasses displays an image that the viewer can see with the right eye (hereinafter referred to as a "right eye image") and an image that can be seen with the left eye (hereinafter referred to as a "left eye image") on a stereoscopic screen. Done. The viewer observes the right eye image and the left eye image displayed on the stereoscopic screen through the stereoscopic glasses, and then senses the stereoscopic feeling by synthesizing the right eye image and the left eye image in the head.

Referring to Fig. 1, a configuration of a conventional stereoscopic image display device is shown. The first camera 2a transmits only the r1 signal among the color signals r1, g1, and b1 to the display device 4. In this case, r1, g1, and b1 are red (Red; hereinafter referred to as "R"), Green (hereinafter, referred to as "G"), and Blue (hereinafter, referred to as "B") respectively input to the first camera. Means. The second camera 2b transmits only the g2 and b2 signals among the color signals r2, g2 and b2 to the display device 4. Accordingly, the r1, g2, and b2 signals appear on the display device 4. On the other hand, a red (R) filter is provided on the left side of the three-dimensional glasses 6 worn by the viewer, and a cyan (C) filter is provided on the right side. In this case, in addition to the combination of red (R) and indigo (C), the three-dimensional glasses may be implemented by a combination of two colors consisting of one color and its complementary color. For example, Green (G) and Magenta (M) or Blue (B) and Yellow (Y). When the viewer looks at the display device 4, the r1 signal of the color signals of the display device is detected in the left eye, and the g2 and b2 signals of the color signals of the display device are detected in the right eye. In this case, the r1 signal becomes the left eye image and the g2 and b2 signals become the right eye image. At this time, the left eye image and the right eye image are synthesized in the head to feel a three-dimensional feeling. However, the conventional stereoscopic image display device not only has the inconvenience of wearing stereoscopic glasses in order to feel stereoscopic images, but also has a problem that it is difficult to view three-dimensional images of primary colors.

Referring to FIG. 2, a stereoscopic image display device using a parallax barrier (Parallax Barrier) is illustrated. The parallax barrier 8 is installed between the viewer and the display device 4. In the parallax barrier 8, an opaque part 8a and a transparent part 8b are alternately formed. The opaque portion and the transparent portion formed in the parallax barrier 8 may be formed in the form of a line, or may be formed in a mosaic form. On the display device 4, the first pixel p1 formed by the color signal input from the first camera (not shown) and the second pixel p2 formed by the color signal input from the second camera (not shown) are provided. Is indicated. In this case, since the second pixel P2 is covered by the opaque portion 8a when viewed from the left eye of the viewer, the first pixel p1 becomes a left eye image. On the other hand, when viewed from the viewer's right eye, since the first pixel p1 is covered by the opaque portion 8a, the second pixel p2 becomes a right eye image. Accordingly, different pixels are detected in the left eye image and the right eye image, so that the viewer feels a three-dimensional effect. Normally, the opaque part (8a) is coated in black, and as the multi-view becomes more opaque than the transparent part, more black lines appear and the brightness level of the screen is lowered. It is becoming.

Accordingly, it is an object of the present invention to provide a stereoscopic image display device that can enjoy stereoscopic images without using stereoscopic glasses.

In order to achieve the above object, a stereoscopic image display apparatus according to an embodiment of the present invention comprises a video signal input means for inputting a video signal, a video signal conversion means for converting the input video signal into a predetermined form, and the converted image And display means for displaying an image corresponding to the signal, and a color barrier arranged to correspond to the front surface of the display means to implement the color of the image.

In accordance with another aspect of the present invention, a stereoscopic image display apparatus includes a video signal input means for inputting a video signal, a video signal converting means for converting the input video signal into a predetermined form, and an image corresponding to the converted video signal. And display means for displaying, and a color barrier arranged to correspond to the rear surface of the display means to implement the color of the image.

In addition, the three-dimensional image display apparatus according to an embodiment of the present invention includes a video signal input means for inputting a video signal, a video signal conversion means for converting the input video signal into a predetermined form, and corresponding to the converted video signal And display means for displaying an image, a first optical element arranged to correspond to the rear surface of the display means, and a second optical element arranged to correspond to the front surface of the display means.

Other objects and features of the present invention in addition to the above object will be apparent from the description of the embodiments with reference to the accompanying drawings.

Referring to Figures 3 to 8 will be described a preferred embodiment of the present invention.

Referring to FIG. 3, a stereoscopic image display apparatus according to an embodiment of the present invention includes an image signal input unit 12 for inputting two different image signals, and an image for converting the input image signal into a predetermined form. A signal converter 20, a display device 14 for displaying an image corresponding to the converted video signal, and a color barrier 22 positioned at the front end of the display device to select colors. The image signal input unit 12 inputs two different image signals using the first and second cameras 12a and 12b. The image signal input unit 12 may also input different image signals for one pixel by using computer graphics. The video signals r1, g1, b1 input from the first camera 12a and the video signals r2, g2, b2 input from the second camera 12b are mixed by the video signal converter 20. . The display device 14 displays the first and second pixels p1 and p2 so as to correspond to the video signals mixed by the video signal converter 20. In this case, the video signal of the first pixel p1 has r1, g2 and b2, and the video signal of the second pixel p2 has r2, g1 and b1. On the other hand, in the color barrier 22, the red filter R and the indigo filter C are alternately formed. In this case, the color barrier 22 may be implemented by a combination of two colors consisting of one color G or B and its complementary colors M and Y. For example, a color barrier may be formed by combining green (G) and magenta color (M) or blue (B) and yellow (Y) which are complementary to each other. Thus, it is preferable to consider the color input to each pixel corresponding to the corresponding primary color and complementary color. Accordingly, the r1 signal is transmitted by the red filter 22R to the left eye of the viewer, and the g1 and b1 signals are transmitted by the indigo filter 22C. That is, since only the red component of the first pixel p1 is transmitted through the red filter 22R, the r1 signal is transmitted to the left eye. The red component is blocked through the indigo filter 22C, and only the green and blue components are blocked. As it is transmitted, signals g1 and b1 are transmitted to the left eye. On the other hand, the r2 signal is transmitted to the right eye of the viewer by the red filter 22R ', and the g2 and b2 signals are transmitted to the indigo filter 22C. That is, the left eye image is r1, g1, b1 and the right eye image is r2, g2, b2. In this case, since the left eye image and the right eye image are two different image signals input to the image signal input unit 12, the viewer feels a three-dimensional effect. In contrast to a conventional stereoscopic image display device using a parallax barrier displaying only one type of image information in one pixel, the stereoscopic image display device of the present invention uses two types of image information in one pixel, that is, the first and second cameras 12a. 12b) is displayed. In addition, the stereoscopic image display device processes the signal so that the positions of the first and second pixels p1 and p2 of the display device 14 (for example, the LCD) are in a shape other than the vertical column shape. Collar barriers having shapes other than the corresponding vertical columnar shape may be used. Accordingly, the stereoscopic image display device according to an embodiment of the present invention eliminates the use of glasses and implements a color, thereby facilitating the viewer's convenience.

Referring to FIG. 4, a stereoscopic image display device according to another embodiment of the present invention is illustrated. The stereoscopic image display device of FIG. 4 is configured to input three different image signals to one pixel and transmit the same to a viewer to feel a stereoscopic image. FIG. 4 has the same basic structure as FIG. 3 but differs in that it is configured to implement 3 views. This will be described in detail. The image signal input unit 12 inputs three different image signals using the first to third cameras 12a to 12c. Image signals r1, g1, b1 input from the first camera 12a, image signals r2, g2, b2 input from the second camera 12b, and image signals input from the third camera 12c ( r3, g3, and b3 are mixed by the video signal converter 20. The display device 14 displays the first to third pixels P1, P2, and P3 so as to correspond to the video signals mixed by the video signal converter 20. In this case, the video signal of the first pixel p1 has r1, g2, b3, the video signal of the second pixel p2 has r3, g1, b2, and the video signal of the third pixel P3 r2, g3, and b1. On the other hand, in the color barrier 22, the red filter R, the green filter G, and the blue filter B are alternately formed. In this case, the color barrier 22 may be implemented by alternately forming filters for three colors in which the light transmission regions of the filters do not overlap each other, and the sum of the transmission regions of each filter is wider than the entire region of the visible light. Accordingly, the r1 signal is transmitted by the red filter 22R in the first region Z1, the g1 signal is transmitted by the green filter 22G, and the b1 signal is transmitted by the blue filter 22B. By the same method, signals r2, g2 and b2 are transmitted to the second point Z2 and signals r3, g3 and b3 are transmitted to the third point Z3. That is, since one pixel is divided into three image signals and displayed on the display device with one eye, the total amount of information is reduced to one third, but the number of pixels transmitted to the eye is not reduced, so the pixels are three times larger in the horizontal direction. It becomes visible. On the other hand, referring to Figure 5 will be described the conditions for the collar barrier to work effectively. As shown in FIG. 5, the color barrier 22 must be spaced apart from the LCD 17 at a predetermined distance so that the viewer can feel a three-dimensional effect. Accordingly, it is desirable to maintain a predetermined distance between the collar barrier 22 and the CD 17. At this time, the distance between the color barrier 22 and the LCD 17 is shown in equation (1).

[Equation 1]

Where D is the distance between the color barrier and the liquid crystal panel, I is the pitch of the pixels, B is the horizontal distance between the color barrier patterns, C is the distance between the viewer and the liquid crystal panel, and E is the distance between the viewer's eyes. Means each. As an example in which the stereoscopic display device is arranged, when I is set to 0.3 mm and E is 6.5 cm, D and C may be set to 0.18 cm and 40 cm, respectively. If the above conditions are satisfied, the viewer will feel the three-dimensional effect because the color barrier works effectively. Accordingly, the three-dimensional image display device according to another embodiment of the present invention eliminates the use of eyeglasses and implements colors to facilitate the viewer's convenience.

Referring to FIG. 6, a stereoscopic image display device according to still another embodiment of the present invention is illustrated. As shown in FIG. 6, a multiview color barrier 24 is used to implement a multiview stereoscopic image. The multi-view color barrier 24 has a form in which the collar barrier and the black matrix BM are combined in one substrate. The color barrier is implemented by a combination of two colors consisting of one color (R, or G, B) and its complementary color (C or M, Y), and three colors (R, G, B) or FIG. It can also be implemented as a combination of the three colors that the transmission conditions as shown in the. On the other hand, the arrangement of the black matrix BM is determined according to the arrangement of the r, g, b subpixels of the LCD and the desired multiview. Accordingly, the multi-view color barrier 24 may be implemented by combining the color barrier and the black matrix barrier according to the designer's intention. For example, two colors, one color (R or G, B) and its complementary color (C or M, Y) between the opaque portions 24a (i.e., transparent portions; 24b), as shown in FIG. By arranging colors alternately, a four-view color barrier can be achieved. In this case, one pixel of the stereoscopic image display device may use a color barrier corresponding to the pixel by processing a signal such that the first to fourth pixel positions of the LCD are arranged in a horizontal direction or 2 × 2 shape. In addition, in the multi-view color barrier, the 2m view is realized by increasing the width of the opaque portion 24a. In this case, m means an integer of 2 or more corresponding to the width of the opaque portion. Meanwhile, six views may be realized by alternately arranging three colors R, G, and B or three colors satisfying the transmission conditions of FIG. In this case, the one pixel of the stereoscopic image display apparatus may use a color barrier corresponding to a signal in such a manner that the first to sixth pixel positions of the LCD are arranged horizontally, 2 × 3, or 3 × 2. . In addition, in the multi-view color barrier, the 3m view is realized by increasing the width of the opaque portion 24a. In this case, m means an integer of 2 or more corresponding to the width of the opaque portion. Meanwhile, when n colors are used, multi-views corresponding to integer multiples of n may be implemented. In addition, when m colors are used, 2m 3m,... And so on. In this case, 2 means two colors used and 3 means three colors used. Accordingly, the stereoscopic image display device according to another embodiment of the present invention eliminates the use of glasses and arranges colors by arranging a multi-view color barrier at the front or rear of the LCD, thereby facilitating viewers' convenience. Done.

On the other hand, the color used for the color barrier as shown in Figure 7 must satisfy the condition that the wavelength transmission region of each color filter does not overlap and the sum of the wavelength transmission region is larger than the total visible light region. Among the above conditions, a condition in which the wavelength transmission regions of the color filter do not overlap is a requirement for different images to be introduced to both eyes. In addition, the condition that the sum of the wavelength transmission areas must be larger than the total visible light area is a condition for allowing the user to feel the color of the entire area (that is, the full color color). FIG. 7A shows a relationship between the above conditions when one color B and its complementary color Y are used. In FIG. 7B, three colors R, G and B are shown. When used, the relationship with the above conditions is shown. In addition, as shown in FIG. 7C, an n-view may be implemented using n colors to satisfy the above conditions. In this case, n means an integer of 2 or more.

Meanwhile, as shown in FIGS. 3 to 6, the color barrier is disposed at the front end of the LCD, and the stereoscopic image display device is implemented so that the viewer can feel the stereoscopic image. Also, depending on the designer's intention, the color barrier may be arranged at the rear of the LCD. In addition, according to the intention of the designer, the color light source may be used to simultaneously perform the combined function of the color barrier and the light source. On the other hand, as the multiview becomes a color barrier has a form of a multiview color barrier combined with a black matrix. As shown in FIG. 8, the multi-view color barrier may be configured with the first and second optical elements disposed at the rear and front ends of the LCD to implement the stereoscopic image display device.

Referring to FIG. 8, a stereoscopic image display device according to another embodiment of the present invention includes an LCD 19 for displaying an image corresponding to an image signal, and a first optical element 16 disposed at a rear end of the LCD 19. ) And a second optical element 18 disposed in front of the LCD 19. In another embodiment of the present invention, the first optical element 16 and the second optical element 18 are properly combined according to the designer's intention to implement various types of stereoscopic image display devices. The first combination makes it possible to implement a stereoscopic image display apparatus using the first optical element 16 as the color barrier and the second optical element 18 as the color barrier. In this case, it is used as a color light source by a combination of a light source (not shown) and a color filter employed as the first optical element 16. In this case, the light source and the color barrier may be combined or a color light source may be employed as the first optical element 16. In addition, the light beam of each color generated from the color light source proceeds to the color filter employed as the second optical element 18. In this case, there is an advantage that the directivity of the light beam is improved. The second combination makes it possible to implement a stereoscopic display device using the first optical element 16 as the color barrier and the black matrix (BM) barrier as the second optical element 18. In this case, since the function and operation of the first optical element 16 are the same as the first one, detailed description thereof will be omitted. The color light source causes the light beam of each color generated to travel to the black matrix barrier employed as the second optical element 18. In this case, the multi-view is realized by the first optical element 16 and the black matrix barrier. The third combination may implement a stereoscopic image display device by using the first optical element 16 as a black matrix (BM) barrier and the color barrier as the second optical element 18. In this case, it is used as a line light source by a combination of a light source (not shown) and the black matrix barrier employed as the first optical element 16. In this case, the light source and the black matrix may be combined or a linear light source may be employed as the first optical element 16. In addition, the light beam generated from the linear light source proceeds to the color filter employed as the second optical element 18. In this case, the multiview is implemented. Accordingly, the three-dimensional image display device according to another embodiment of the present invention eliminates the use of eyeglasses and implements colors to facilitate the viewer's convenience.

As described above, the three-dimensional image display device according to the present invention can eliminate the use of the three-dimensional glasses and implement the color of the three-dimensional image, there is an advantage to facilitate the viewer.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

1 is a diagram showing the configuration of a conventional stereoscopic image display device.

FIG. 2 is a diagram illustrating another example of FIG. 1. FIG.

3 illustrates a stereoscopic image display device according to an exemplary embodiment of the present invention.

4 is a diagram illustrating a stereoscopic image display device according to another exemplary embodiment of the present invention.

FIG. 5 is a view for explaining the installation conditions of FIGS. 3 and 4 by way of example.

6 is a diagram illustrating a color barrier used in a stereoscopic image display device according to another embodiment of the present invention.

Fig. 7 is a diagram for explaining the requirements of the collars used in the present invention.

8 is a diagram illustrating a three-dimensional image display device according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

2,12 camera 4,14,17 display device

6: stereoscopic glasses 8: parallax barrier

16 first optical element 18 second optical element

20: video signal converter 22: color barrier

Claims (15)

Video signal input means for inputting a video signal; Video signal converting means for converting the input video signal into a predetermined form; Display means for displaying an image corresponding to the converted video signal; And a color barrier disposed to correspond to the front surface of the display means to implement the color of the image. The method of claim 1, And when the color barrier is applied to two views, one color and two colors corresponding to the complementary colors are alternately formed. The method of claim 1, When the color barrier is applied to the three views, the three-dimensional image display device is characterized in that the light transmission region for the wavelength does not overlap, and three colors in which the sum of each transmission region is wider than the total wavelength of visible light are alternately formed. The method of claim 1, And the color barrier is alternately formed with n colors and is applied to the n-view. The method of claim 1, When the color barrier is applied to four views, one color and two colors corresponding to the complementary colors are alternately formed on the transparent portion of the black matrix barrier. The method of claim 1, When the color barrier is applied in 6 views, the light transmission regions with respect to the wavelength do not overlap, and the sum of each transmission region is wider than the total wavelength of visible light, and three colors are alternately formed in the transparent portion of the black matrix barrier. Stereoscopic image display device. The method of claim 4, wherein And a multi-view corresponding to an integer multiple of n by adding a black matrix to the n-view color barrier in which the n-colors are alternately formed. Video signal input means for inputting a video signal; Video signal converting means for converting the input video signal into a predetermined form; Display means for displaying an image corresponding to the converted video signal; And a color barrier arranged to correspond to a rear surface of the display means to implement a color of the image. The method of claim 8, And the color barrier and the light source are used as a color light source. Video signal input means for inputting a video signal; Video signal converting means for converting the input video signal into a predetermined form; Display means for displaying an image corresponding to the converted video signal; A first optical element disposed to correspond to a rear surface of the display means; And a second optical element arranged to correspond to the front surface of the display means. The method of claim 10, And a color barrier as the first optical element and a color barrier as the second optical element. The method of claim 10, And a color matrix as the first optical element and a black matrix as the second optical element. The method according to any one of claims 11 to 12, And a color barrier and a light source used in the first optical element, for use as a color light source. The method of claim 10, And a black barrier is used for the first optical element and a color barrier is used for the second optical element. The method of claim 14, And a black matrix used as the first optical element and a light source are used as a line light source.