KR20130000692A - An apparatus and a method for displaying a 3-dimensional image - Google Patents

Abstract

PURPOSE: A 3D image display device and a method thereof are provided to prevent a moire phenomenon by reducing a pattern that bright and dark spaces are regularly generated. CONSTITUTION: A 3D image display device(100) includes a display panel(110), a 3D image filter(120), a control unit(130), and a backlight(140). The display panel alternatively arranges a red, a green, and a blue sub pixels in a row direction. The same color of sub pixels are arrange in a column direction. The 3D image filter is placed in the front of the display panel, alternatively forms a transparent area and an oblique area, and forms an edge for regulating a width of the oblique area. The control unit selects a view image for displaying the sub pixels of the display panel according to an inclined direction of the edge. [Reference numerals] (110) Display panel; (120) 3D image filter; (130) Control unit; (140) Backlight

Description

3D image display device and method {AN APPARATUS AND A METHOD FOR DISPLAYING A 3-DIMENSIONAL IMAGE}

The present invention relates to a stereoscopic image display apparatus and method, and more particularly, to a stereoscopic image display apparatus and method capable of displaying a multi-view image.

Currently, the broadcasting environment is rapidly changing from analog broadcasting to digital broadcasting. Accordingly, the amount of content for digital broadcasting is increasing rapidly. In addition to the content for displaying a two-dimensional (2D) video signal as a two-dimensional image as a content for digital broadcasting, content that displays a three-dimensional (3D) video signal as a three-dimensional image is produced and It is planned.

The technique of displaying a 3D image uses the principle of binocular parallax, in which an observer feels a stereoscopic feeling due to binocular disparity, and is classified into a shutter glass method, a glasses-free method, a full three-dimensional method, and the like.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a stereoscopic image display apparatus and method for preventing a moire phenomenon occurring during displaying a stereoscopic image.

Another object of the present invention is to provide a stereoscopic image display apparatus and method for improving crosstalk due to viewer movement and improving the resolution of stereoscopic images while viewing stereoscopic images.

Another object of the present invention is to provide a stereoscopic image display apparatus and method capable of displaying both 2D and 3D images.

In order to achieve the above technical problem, a stereoscopic image display apparatus according to the present invention includes a display panel in which red, green, and blue subpixels are alternately arranged in a row direction, and subpixels of the same color are arranged in a column direction. A stereoscopic image filter disposed on a front surface of the display panel and alternately forming a transmissive region and an opaque region, and an edge defining a width of the opaque region inclined with respect to a vertical axis of the display panel; And a controller configured to determine a viewpoint image to be displayed by the subpixel of the display panel according to the inclined direction of the edge.

The stereoscopic image filter may be formed such that the width of the non-transmissive region corresponds to the width of four sub-pixels.

The stereoscopic image filter may be formed such that the width of the transmission area corresponds to the width of one subpixel.

The stereoscopic image filter is configured to form the impermeable region such that the edge passes from the start point to the start point by the width of the edge in the row direction and passes from the start point to the column width by the vertical width of the predetermined subpixel. can do.

The angle α at which the edge is inclined is arctan (4Ph / 3Pv), where Ph represents the horizontal width of the subpixel, and Pv represents the vertical width of the subpixel.

The controller may be configured to display a viewpoint image to be displayed by the subpixel when the edge is inclined in a right direction with respect to a vertical axis of the display panel, or a viewpoint image after a first sequence from a viewpoint image of a previous subpixel in a row direction. If there is no view image after the first sequence, a view image having a difference value between the sequence number and the maximum sequence number of the view image after the first sequence number in turn is determined, and the view image of the previous subpixel in the column direction is determined. When the view image after the second sequence or the view image after the second sequence does not exist, the view image having the difference value between the sequence number and the maximum sequence number of the view image after the second sequence number may be determined.

The controller may be configured to display a viewpoint image to be displayed by the subpixel when the edge is inclined in a left direction with respect to the vertical axis of the display panel. If the viewpoint image before the first sequence does not exist, the viewpoint image having the sum of the sequence number and the maximum sequence number of the viewpoint image before the first sequence in turn is determined, and the second image is included in the viewpoint image of the previous subpixel in the column direction. When there is no viewpoint image after the sequence or a viewpoint image after the second sequence, the viewpoint image having the difference value between the sequence number and the maximum sequence number of the viewpoint image after the second sequence number may be determined.

The controller may further control activation and deactivation of an opaque region of the stereoscopic image filter according to the type of the displayed image.

The stereoscopic image display apparatus may further include a backlight disposed on a rear surface of the display panel and configured to supply light to the display panel.

The display panel may be a plasma display panel (PDP) or a liquid crystal display (LCD).

In accordance with another aspect of the present invention, a stereoscopic image display apparatus includes a display in which red, green, and blue subpixels are alternately arranged in a row direction, and subpixels of the same color are arranged in a column direction. A lenticular lens substrate having a panel, a plurality of lenses disposed on a front surface of the display panel, the vertical axis of the display panel being inclined with respect to the vertical axis of the display panel, and the display panel according to a direction in which the vertical axis of the lens is inclined. And a controller configured to determine a view image to be displayed by the sub-pixel of.

The width of the lens may be formed to correspond to the width of five sub-pixels.

The angle α at which the longitudinal axis of the lens is inclined is arctan (4Ph / 3Pv), where Ph represents the horizontal width of the subpixel, and Pv represents the vertical width of the subpixel.

The controller may be configured to display a viewpoint image to be displayed by the subpixel in a row direction when the longitudinal axis of the lens is inclined in a right direction with respect to the vertical axis of the display panel, and after the first sequence from the viewpoint image of the previous subpixel in the row direction. If there is no image or a viewpoint image after the first sequence, the viewpoint image having the difference value between the sequence number and the maximum sequence number of the viewpoint image after the first sequence sequence is determined, and the viewpoint image of the previous subpixel in the column direction. In the case where the view image after the second sequence number or the view image after the second sequence number does not exist, the viewpoint image having the difference value between the sequence number and the maximum sequence number of the view image after the second sequence number may be determined in sequence.

The controller may be configured to display a viewpoint image to be displayed by the subpixel in a row direction when the longitudinal axis of the lens is inclined in a left direction with respect to the vertical axis of the display panel. If the image or the viewpoint image before the first sequence does not exist, the viewpoint image having the sum of the sequence number and the maximum sequence number of the viewpoint image before the first sequence sequence is determined, and the viewpoint image of the previous subpixel in the column direction is determined. When the view image after the second sequence number or the view image after the second sequence number does not exist, the view image having the difference value between the sequence number and the maximum sequence number of the view image after the second sequence number may be determined.

The lenticular lens substrate further includes a lenticular array for converting transmitted light into circularly polarized light, and the controller may further control activation and deactivation of the lenticular array according to the type of the displayed image.

The stereoscopic image display apparatus may further include a backlight disposed on a rear surface of the display panel and configured to supply light to the display panel.

The display panel may be a plasma display panel (PDP) or a liquid crystal display (LCD).

In accordance with another aspect of the present invention, there is provided a method of displaying a stereoscopic image, wherein a subpixel of a display panel is displayed from among a plurality of viewpoint images according to an inclined direction of an edge defining a width of an opaque region. Determining an image, displaying the predetermined viewpoint image through sub-pixels of the display panel, and separating the displayed viewpoint image using a transmission region formed between an opaque region, and the edge is The display panel may be inclined with respect to a vertical axis of the display panel. The display panel may include red, green, and blue subpixels alternately arranged in a row direction, and subpixels of the same color may be arranged in a column direction.

According to another aspect of the present invention, there is provided a stereoscopic image display method comprising: determining a viewpoint image to be displayed by a subpixel of a display panel among a plurality of viewpoint images according to a direction in which a longitudinal axis of a lens is inclined; Displaying the predetermined viewpoint image through a subpixel of a display panel, and refracting the displayed viewpoint image using the lens, wherein a longitudinal axis of the lens is inclined with respect to a vertical axis of the display panel In the display panel, red, green, and blue subpixels are alternately arranged in a row direction, and subpixels of the same color may be arranged in a column direction.

According to the stereoscopic image display apparatus and method, a pattern in which bright and dark spaces are regularly generated during the stereoscopic image display can be reduced to prevent moire phenomenon, and the stereoscopic image can be viewed while minimizing degradation of the vertical resolution. The crosstalk due to the viewer's movement can be improved, and both 2D and 3D images can be displayed.

1 is a block diagram showing the configuration of a preferred embodiment of a stereoscopic image display apparatus according to the present invention;
2 is a diagram illustrating an arrangement of subpixels of a display panel;
3 is a diagram illustrating image separation by a stereoscopic image filter;
4 is a diagram illustrating a preferred embodiment of a stereoscopic image filter in which an opaque region is inclined;
5 is a diagram illustrating a preferred embodiment of an arrangement of a viewpoint image to be displayed on a subpixel;
FIG. 6 is a diagram illustrating a preferred embodiment of a stereoscopic image filter in which an opaque region is inclined.
7 illustrates another exemplary embodiment of an arrangement of a viewpoint image to be displayed on a subpixel;
8 is a view showing the implementation of a preferred embodiment for a stereoscopic image display method according to the present invention,
9 is a block diagram showing the configuration of another preferred embodiment of a stereoscopic image display apparatus according to the present invention;
FIG. 10 is a diagram illustrating an arrangement of a stereoscopic image display device of FIG. 9;
11 is a view showing the principle of the liquid crystal Lenticular,
12 illustrates a structure of a preferred embodiment of a lenticular lens substrate;
FIG. 13 is a view illustrating a path of light adjusted according to a polarization pattern of light incident on the lenticular lens substrate of FIG. 12.
14 is a view showing a preferred embodiment of the lenticular lens substrate in which the lens is inclined;
15 is a view showing a preferred embodiment of a lenticular lens substrate in which the lens is inclined, and
16 is a view showing the implementation of another preferred embodiment of the stereoscopic image display method according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. At this time, the configuration and operation of the present invention shown in the drawings and described by it will be described as at least one embodiment, by which the technical spirit of the present invention and its core configuration and operation is not limited.

Although the terms used in the present invention have been selected in consideration of the functions of the present invention, it is possible to use general terms that are currently widely used, but this may vary depending on the intention or custom of a person skilled in the art or the emergence of new technology. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, it is to be understood that the term used in the present invention should be defined based on the meaning of the term rather than the name of the term, and on the contents of the present invention throughout.

1 is a block diagram showing the configuration of a preferred embodiment of a stereoscopic image display apparatus according to the present invention.

Referring to FIG. 1, the stereoscopic image display apparatus 100 according to the present invention may include a display panel 110, a stereoscopic image filter 120, a controller 130, and a backlight 140.

The display panel 110 includes a plurality of sub pixels to implement an image. The image may be a 2D image and a stereoscopic image. The stereoscopic image may be a stereo viewpoint image or a multiview image. The stereo image refers to a pair of left and right images obtained by photographing the same subject with a left camera and a right camera spaced apart from each other by a certain distance. The multi-view image refers to three or more images obtained by photographing the same subject with three or more cameras having a constant distance or angle, and the images acquired by each camera are defined as viewpoint images. That is, the stereoscopic image may include at least one left eye view image data and at least one right eye view image data.

The display panel 110 displays an image by adjusting the light emitted from the self-emitted light or the light incident from the backlight 140.

The display panel 110 may be implemented as a plasma display panel (PDP) or a liquid crystal display (LCD). When the display panel 110 is implemented as an LCD, since the LCD cannot emit light by itself, the 3D image display apparatus 110 may further include a backlight 140 as a source of light. In addition, when the display panel 110 is implemented as a PDP, the 3D image display apparatus 110 may not include the backlight 140.

2 is a diagram illustrating an arrangement of subpixels of a display panel.

Referring to FIG. 2, red, green, and blue subpixels are alternately arranged in the row direction in the display panel 200. In this case, the row direction refers to a direction from the subpixel 211 to the subpixel 214 through the subpixel 212 and the subpixel 213. In addition, since the red, green, and blue subpixels are alternately arranged in the row direction, the red (R) subpixel is positioned in the subpixel 211, which is the subpixel of the first row and the first column, so that the subpixels of the first row and the second column are The subpixel 212 becomes a green (G) subpixel, and the subpixel 213 that is a subpixel of one row and three columns becomes a blue (B) subpixel. Also, the subpixel 214, which is a subpixel of one row and four columns, becomes a red subpixel again.

In the display panel 200, subpixels having the same color are arranged in the column direction. Here, the column direction refers to a direction from the subpixel 211 toward the subpixel 231 through the subpixel 221. Further, since the subpixels of the same color are arranged in the column direction, the subpixel 221 which is the subpixel of the second row and the first column becomes the red subpixel which is the same subpixel as the subpixel 211. Also, the subpixel 222 which is a subpixel of 2 rows and 2 columns becomes a green subpixel which is the same subpixel as the subpixel 212. Subpixel 223, which is a subpixel of 2 rows and 3 columns, becomes a blue subpixel that is the same subpixel as subpixel 213, and subpixel 224, which is a subpixel of 2 rows and 4 columns, is the same as subpixel 214. It becomes a red subpixel which is a subpixel.

The number displayed on each subpixel means the number of the viewpoint image to be displayed by the corresponding subpixel. For example, since the subpixel 211 displays 1, the subpixel 211 displays the first view image. In addition, since the subpixel 212 displays 4, the subpixel 212 displays a fourth view image. In addition, since the subpixel 221 displays 5, the subpixel 221 displays a fifth viewpoint image. In addition, since the subpixel 222 displays 8, the subpixel 222 displays the eighth view image.

The pixel value to be displayed in the view image is determined according to the position of the subpixel. For example, since the subpixels 211 are located in one row and one column, the pixel values corresponding to one row and one column of the first view image are displayed. In addition, since the subpixels 222 are positioned in two rows and two columns, the pixel values corresponding to two rows and two columns of the eighth viewpoint image are displayed.

In addition, the pixel value to be displayed in the view image is determined according to the type of the subpixel. For example, since the type of the subpixel 211 is a red subpixel, a red pixel value is displayed among pixel values corresponding to one row and one column of the first view image. In addition, since the type of the subpixel 222 is a green subpixel, a green pixel value is displayed among pixel values corresponding to two rows and two columns of the eighth viewpoint image.

The display panel 110 of FIG. 1 may have a subpixel arrangement of the display panel 200 of FIG. 2, and may have a subpixel arrangement different from that of the display panel 200 and the subpixel of FIG. 2. . That is, the display panel 110 of FIG. 1 may have a layout arranged in the order of red, blue, and green subpixels in a row direction, and may have a layout arranged in the order of green, blue, and red subpixels. , Red and blue sub pixels may be arranged in order. In addition, the display panel 110 of FIG. 1 may have arrangements arranged in order of blue, red, and green subpixels in a row direction, and may have arrangements arranged in order of blue, green, and red subpixels.

In addition, the display panel 110 of FIG. 1 may include subpixels in which red, green, and blue subpixels are alternately arranged in a column direction, and subpixels of the same color are arranged in a row direction.

The stereoscopic image filter 120 is a filter for displaying a multiview image displayed on the display panel 110 as a stereoscopic image to a viewer, and may include transmission regions and opaque regions arranged at regular intervals. Light emitted from the display panel 110 is transmitted through the transmission area to reach the viewer's right eye or left eye. The stereoscopic filter 120 may be a liquid crystal parallax barrier. In addition, the transmission region may be an aperture.

When the stereoscopic image filter 120 is a liquid crystal parallax barrier, the opaque region may be configured as a barrier, and the pair of transmissive and opaque regions may be referred to as pitch. The transmission region and the non-transmission region of the stereoscopic image filter 120 may be moved under the control of the controller 510. In this case, the 3D image filter 120 may be fixed.

In addition, the opaque region of the stereoscopic filter 120 may be activated and deactivated. When the opaque region is activated, the opaque region blocks the transmission of light incident thereon. When the opaque region is inactivated, the opaque region transmits light incident thereto.

3 is a diagram illustrating image separation by a stereoscopic image filter.

Referring to FIG. 3, the stereoscopic image display apparatus 300 is disposed on the front of the display panel 310 and the display panel 310 displaying a multi-view image in which a plurality of viewpoint images are mixed, and is opaque. The region 321 and the transmission region 322 include a stereoscopic image filter 320 arranged at regular intervals.

The stereoscopic image filter 320 is disposed at a predetermined distance in front of the display panel 310, and the opaque region 321 and the transmission region 322 are alternately arranged in a direction parallel to the display panel 310.

When the display panel 310 displays the viewpoint image included in the multiview image through each sub-pixel, the viewer views the displayed viewpoint images through the stereoscopic image filter 320, and the left and right eyes of the viewer are respectively displayed on the display panel. As one of the viewpoint images provided at 310 is viewed independently, the viewer may feel a 3D effect.

The spot where the viewer can see 3D images is called a sweet spot. In other words, the sweet spot refers to a point where cross-talk in which viewpoint images are overlapped does not occur. The sweet spot for viewing the seventh image may be a point 331, and the sweet spot for viewing the fourth image may be a point 333. If the viewer's right eye is located at the point 333 and the viewer's left eye is located at the point 331, the viewer can view the fourth image through the right eye and the seventh image through the left eye, and thus the fourth image. The three-dimensional image can be viewed through the seventh image.

The stereoscopic image display apparatus 100 may be the stereoscopic image display apparatus 300 or the stereoscopic image display apparatus in which the stereoscopic image filter 120 is disposed on the rear surface of the display panel 110.

4 is a diagram illustrating an exemplary embodiment of a stereoscopic image filter in which an opaque region is inclined.

Referring to FIG. 4, the barrier period of the stereoscopic image filter 120 may be 5 sub pixels 455. The barrier period is a sum of the width of the opaque region and the width of the transmissive region, and the width of the opaque region may be formed to correspond to the width of the four subpixels, and the width of the transmissive region is the width of one subpixel. It may be formed to correspond to. For example, the widths of the opaque region 410 and the opaque region 420 correspond to the horizontal widths 465 of four subpixels. In addition, the width of the transmissive region 415 corresponds to the horizontal width 461 of one subpixel.

The edge defining the width of the opaque region may be inclined with respect to the vertical axis 401 of the display panel. For example, the edge 411 of the opaque region 410 is formed to be inclined with respect to the display panel vertical axis 410.

The border of the opaque region may be formed so as to pass a point spaced apart by the width of the edge in the left direction from the start point to the start point and spaced apart by the vertical width of a predetermined subpixel in the column direction from the start point. The predetermined subpixel may be three subpixels. That is, the border of the opaque area is spaced apart from the start point a1 by the width of the border in the left direction from the start point a1 and the point b1 spaced by the vertical width of the three subpixels in the column direction from the start point a1. It may be formed to pass.

Also, the angle α 451 at which the edge of the opaque region is inclined may be arctan (4Ph / 3Pv), where Ph may represent a horizontal width of the subpixel, and Pv may represent a vertical width of the subpixel. For example, when Ph is three times Pv, the angle α may be arctan (4/9).

In addition, the edge of the non-transmissive area may be formed to be inclined in a right direction with respect to the vertical axis 401 of the display panel, and may be formed to be inclined in a left direction. FIG. 4 illustrates a stereoscopic image filter 120 in which an edge 411 of an opaque region is inclined in a right direction with respect to the vertical axis 401 of the display panel 110.

The controller 130 determines an image to be displayed by the subpixels of the display panel 110. The controller 130 may determine a viewpoint image to be displayed by the subpixel of the display panel 110 according to at least one of a direction in which the edge of the opaque region is inclined and the number of viewpoint images.

The controller 130 may control activation and deactivation of an opaque region of the stereoscopic image filter according to the type of the displayed image. When the displayed image is a 2D image, the controller 130 controls the opaque region to be inactivated. If the displayed image is a stereoscopic image, the controller 130 controls the opaque region to be activated.

When the edge of the opaque region is inclined in the right direction, the controller 130 may view a viewpoint image to be displayed by the subpixel in a row direction from a viewpoint image after the first sequence or after the first sequence in the viewpoint image of the previous subpixel. When the viewpoint image does not exist, it may be determined as a viewpoint image having a difference value between the sequence number and the maximum sequence number of the viewpoint image after the first sequence number in sequence. In addition, when the edge of the opaque region is inclined in the right direction, the controller 130 may view the view image to be displayed by the subpixel in the column direction after the view image after the second sequence or after the second sequence in the view image of the previous subpixel. When there is no view image of FIG. 2, the view image having the difference value between the sequence number and the maximum sequence number of the view image after the second sequence number may be determined. The viewpoints of the first sequence number and the second sequence number may be determined based on at least one of an angle at which an edge of the opaque region is inclined and a number of view images.

When the edge of the opaque region is inclined in the left direction, the controller 130 may display the viewpoint image to be displayed by the subpixel in the row direction before the third image or the third image in front of the viewpoint image of the previous subpixel. When the viewpoint image does not exist, the viewpoint image may be determined to have a sum of the sequence number and the maximum sequence number of the viewpoint image before the third sequence in sequence. In addition, when the edge of the opaque region is inclined in the left direction, the controller 130 may view the view image to be displayed by the subpixel in the column direction after the view image after the fourth sequence or after the fourth sequence in the view image of the previous subpixel. If there is no view image of FIG. 4, the view image having the difference value between the order number and the maximum order number of the view image after the fourth sequence number may be determined. In this case, the viewpoints of the third sequence number and the fourth sequence number may be determined based on at least one of an angle at which an edge of the opaque region is inclined and a number of view images.

FIG. 5 is a diagram illustrating a preferred embodiment of an arrangement of a viewpoint image to be displayed on a subpixel.

FIG. 5 illustrates an arrangement of a viewpoint image to be displayed in a sub-pixel when the edge 502 of the opaque region is inclined by an angle arctan (4/9) to the right with respect to the vertical axis 501 of the display panel 110. do. 5 illustrates an arrangement of viewpoint images when fifteen viewpoint images are displayed. 5 illustrates an arrangement of a viewpoint image to be displayed on a subpixel when the first sequence number is set to 3 and the second sequence number is set to 4. FIG. Here, the first order number and the second order number may be determined based on the angle 505.

Referring to FIG. 5, the controller 130 displays the first view image in the subpixels 511 of one row and one column. The viewpoint image to be displayed by the subpixels 512 of the first row and the second column becomes a fourth viewpoint image, which is an image three times after the first viewpoint image. In the viewpoint image to be displayed by the subpixels 513 of the first row and the third column, the image after the third sequence is the seventh viewpoint image from the fourth viewpoint image, and the viewpoint image to be displayed by the subpixels of the first to fourth columns of the seventh viewpoint image The viewpoint image to be displayed after the third sequence is a tenth viewpoint image, and the viewpoint image to be displayed by the subpixels in one row and five columns becomes the thirteenth viewpoint image which is the image after the third sequence from the tenth viewpoint image. In the viewpoint image displayed by the subpixels in the first row and the sixth column, since the sixteenth viewpoint image, which is the image after the third sequence, does not exist in the thirteenth viewpoint image, the difference value between the sequence number 16 of the sixteenth view image and the maximum sequence number 15 is 1. It becomes a first viewpoint image having in sequence. In addition, the viewpoint image to be displayed by the subpixels in the first row and the seventh column becomes a fourth viewpoint image, which is an image three times after the first viewpoint image.

The viewpoint image 521 to be displayed by the subpixels in the second row and the first column becomes a fifth viewpoint image that is a viewpoint image four times later from the first viewpoint image that is the viewpoint image of the first row of the first row as the first subpixel in the column direction. The viewpoint image 531 to be displayed by the subpixels in the third row and the first column becomes a ninth viewpoint image, which is a viewpoint image four times after the fifth viewpoint image.

The viewpoint image to be displayed by the subpixels 522 of the second row and the second column is determined as an eighth viewpoint image that is a viewpoint image three times later from the fifth viewpoint image that is the viewpoint image of the second row and the first column. The viewpoint image 522 may be defined as an eighth viewpoint image, which is a viewpoint image four times later, from the fourth viewpoint image, which is the viewpoint image of the first row and the second column, and becomes the same image as the viewpoint image determined in the row direction.

As shown in FIG. 5, since the stereoscopic image display apparatus 100 according to the present invention displays five viewpoint images of 15 viewpoint images in one row, the three-dimensional image display apparatus 100 is vertical, rather than displaying all 15 viewpoint images in one row. Resolution can be improved. In addition, since the stereoscopic image display apparatus 100 according to the present invention forms the opaque region inclined with respect to the vertical axis of the display panel, it is possible to reduce the occurrence of the moiré phenomenon by reducing the regularly repeated shape.

FIG. 6 is a diagram illustrating an exemplary embodiment of a stereoscopic image filter in which an opaque region is inclined.

FIG. 6 illustrates a stereoscopic image filter 120 in which an edge of an opaque region is inclined in a left direction with respect to a vertical axis of a display panel.

Referring to FIG. 6, the edge of the opaque region may be formed to pass through a point spaced apart by the width of the edge in the right direction from the start point and spaced by the vertical width of a predetermined subpixel in the column direction from the start point. Here, the predetermined subpixels may be three. That is, the edge 611 of the opaque region 610 is spaced apart from the start point a2 by the width of the edge in the right direction from the start point a2 and spaced apart by the vertical width of the three subpixels in the column direction from the start point a2. It may be formed to pass through the point (b2). A transmissive region 615 is formed between the opaque region 610 and the opaque region 620.

In addition, the angle α 651 of which the edge 611 is inclined with respect to the vertical axis 601 of the display panel may be arctan (4Ph / 3Pv), where Ph represents the horizontal width of the subpixel, and Pv represents the subpixel. Indicates vertical width. When Ph is three times Pv, the angle α may be arctan (4/9).

FIG. 7 illustrates another exemplary embodiment of an arrangement of a viewpoint image to be displayed on a subpixel.

FIG. 7 illustrates an arrangement of a viewpoint image to be displayed on a sub-pixel when the edge 720 of the opaque region is inclined by an angle arctan (4/9) to the left with respect to the vertical axis 701 of the display panel 110. do. 7 illustrates an arrangement of viewpoint images when fifteen viewpoint images are displayed. In addition, FIG. 7 illustrates an arrangement of a viewpoint image to be displayed on a subpixel when the third sequence number is set to 3 and the fourth sequence number is set to 4. FIG. Here, the third order number and the fourth order number may be determined based on the angle 705.

Referring to FIG. 7, the controller 130 displays a first view image in subpixels 711 of one row and one column. In the view image to be displayed by the subpixels 712 of the first row and the second column, the second view image, which is the image three times earlier in the first view image, does not exist. A thirteenth viewpoint image having a sum of 13 in sequence is obtained. The viewpoint image to be displayed by the subpixel 713 in the first row and the third column becomes the tenth viewpoint image from the thirteenth viewpoint image, and the viewpoint image to be displayed by the subpixels in the first column to the tenth viewpoint image is displayed in the tenth viewpoint image. The seventh view image, which is the image before the third sequence, becomes a seventh view image, and the view image to be displayed by the subpixels of one row and five columns becomes the fourth view image, which is the image three times before, in the seventh view image. The view image to be displayed by the subpixels of the first row and the sixth column becomes a first view image that is an image three times earlier in the fourth view image. Also, since the second view image, which is the image three times earlier in the first viewpoint image, does not exist in the viewpoint image to be displayed by the subpixels in the first row image, the sum of the sequence number -2 of the second viewpoint image and the maximum sequence number 15 is A thirteenth viewpoint image having 13 in sequence is obtained.

The viewpoint image 721 to be displayed by the subpixels of the second row and the first column is the fifth viewpoint image that is the fourth viewpoint image after the first viewpoint image that is the viewpoint image of the first row of the first row and the first column of the first subpixel in the column direction. The viewpoint image 731 to be displayed by the subpixels in the first column becomes a ninth viewpoint image that is a viewpoint image four times after the fifth viewpoint image.

The viewpoint image to be displayed by the subpixel 722 of the second row and the second column is determined as the second viewpoint image that is the viewpoint image three times earlier from the fifth viewpoint image that is the viewpoint image of the second row and the first column. The viewpoint image 722 may be determined as a second viewpoint image, which is a viewpoint image four times later, from the thirteenth viewpoint image, which is the viewpoint image of one row and two columns, and becomes the same image as the viewpoint image determined in the row direction.

The backlight 140 supplies light to the display panel 110. The backlight 140 may be disposed on the rear surface of the display panel 110 and may include one or more backlight lamps and a driving circuit thereof. The light supplied by the backlight 140 may be light having no polarization component. When the display panel 110 is a PDP, the 3D image display apparatus 100 may not include the backlight 140.

8 is a flowchart illustrating a preferred embodiment of a stereoscopic image display method according to the present invention.

Referring to FIG. 8, the controller 130 determines a view image to be displayed on a subpixel of the display panel 110 (S100). here. The controller 130 may check a direction in which an edge defining a width of an opaque region of the stereoscopic image filter 120 is inclined with respect to the vertical axis of the display panel 110. In addition, the controller 130 may check the number of viewpoint images included in the stereoscopic image to be displayed. The controller 130 may determine a viewpoint image to be displayed by the subpixel according to at least one of a confirmation result of the tilted direction and a confirmation result of the number of viewpoint images.

When the edge is inclined in a right direction with respect to the vertical axis of the display panel 110, the controller 130 may determine a viewpoint image to be displayed by the subpixel in the manner described above with reference to FIG. 5. In addition, when the edge is inclined leftward with respect to the vertical axis of the display panel 110, the viewpoint image to be displayed by the subpixel may be determined in the manner described above with reference to FIG. 7.

The display panel 110 displays the viewpoint image (S110). In this case, the subpixel of the display panel 110 displays a subpixel value indicated by the position and type of the subpixel in the viewpoint image determined in operation S100. In addition, the backlight 140 may supply light to the display panel 110.

The stereoscopic image filter 120 separates the light transmitted through the display panel 110 (S120). The light separated by the stereoscopic filter 120 is moved to the sweet spot according to the path described above with reference to FIG. 3.

9 is a block diagram showing the configuration of another preferred embodiment of a stereoscopic image display apparatus according to the present invention.

Referring to FIG. 9. The stereoscopic image display apparatus 100 according to the present invention may include a display panel 910, a lenticular lens substrate 920, a controller 930, and a backlight 940.

The display panel 910 and the backlight 940 are components corresponding to the display panel 110 and the backlight 140 illustrated in FIG. 1, respectively. The display panel 910 and the backlight 940 are described in detail. The description of the 110 and the backlight 140 shall apply mutatis mutandis and the detailed description thereof will be omitted.

The lenticular lens substrate 920 may include a plurality of lenses. The lens may refracting light incident from the display panel 110 so that the multi-view image displayed on the display panel 110 may be viewed as a stereoscopic image to the viewer. In addition, the lens may be moved under the control of the controller 930. In this case, the lenticular lens substrate 920 may be fixed. One lens provided in the lenticular lens substrate 920 may be referred to as a pitch.

FIG. 10 is a diagram illustrating an arrangement of a stereoscopic image display device of FIG. 9.

Referring to FIG. 10, the lenticular lens substrate 1020 may be disposed on the front surface of the display panel 1010. In this case, the lenticular lens substrate 1020 may be disposed to be spaced apart from the display panel 1010 by a predetermined distance l so that the image lies on the focal plane of the lenticular lens.

The lenticular lens substrate 1020 may be a liquid crystal lenticular filter. In this case, the lens 1021, the lens 1022, the lens 1023, the lens 1024, and the lens 1025 included in the lenticular lens substrate 1020 may be liquid crystal lenses.

11 is a view showing the principle of the liquid crystal Lenticular.

Referring to FIG. 11, the liquid crystal lenticular filter 1120 may include a transparent electrode (ITO) 1121 and 1122 and a liquid crystal (LC) disposed between the transparent electrodes. The liquid crystal lenticular filter 1120 adjusts the refraction of light emitted from the display panel 1110 through liquid crystal (LC) so that the viewpoint zeros are positioned on an appropriate sweet spot. That is, liquid crystal (LC) forms lenses that refract light. The liquid crystal lenticular filter 1120 may adjust the position, direction, and arrangement of the liquid crystal (LC) by adjusting a voltage applied to the transparent electrode ITO. The position of the lens to be formed may be changed according to the position, direction, and arrangement of the liquid crystal (LC), and thus the sweet spot may be changed.

The liquid crystal lenticular filter 1120 may have a unit electrode in which electrodes in the lens are divided into a predetermined number, and a refractive index of the liquid crystal is changed by applying a voltage corresponding to the shape of the lens to be formed to have a distribution for each unit electrode. The lens can be formed.

In addition, the liquid crystal lenticular filter 1120 may move the lens by adjusting a voltage applied to the unit electrode. That is, the liquid crystal lenticular filter 1120 applies voltages applied to the unit electrodes to the unit electrodes moved by the number of unit electrodes each having a length corresponding to the movement amount to form the lens, thereby moving the unit lens by the movement amount. The unit lens may be formed at the correct position.

The liquid crystal lenticular filter 1120 may activate and deactivate the liquid crystal LC. When the liquid crystal is activated, a plurality of lenses are formed. When the liquid crystal is deactivated, the liquid crystal lenticular filter 1120 transmits the incident light without refraction.

The controller 930 may control activation and deactivation of the liquid crystal LC of the liquid crystal lenticular filter 1120. The controller 930 may control the liquid crystal LC of the liquid crystal lenticular filter 1120 to be inactivated when displaying the 2D image. In addition, when the stereoscopic image is displayed, the controller 930 may control the liquid crystal LC of the liquid crystal lenticular filter 1120 to be activated.

FIG. 12 illustrates a structure of a preferred embodiment of a lenticular lens substrate.

12 is a cross-sectional view illustrating a structure of an embodiment of a lenticular lens substrate. Referring to FIG. 12, the lenticular lens substrate 1210 is disposed in front of the display panel 910 or is disposed behind the display panel 910 between the display panel 910 and the backlight unit 940. Can be.

In addition, the lenticular lens substrate 1210 determines the refractive index of the lenticular lens 1230 according to the lenticular lens 1230 and the polarization form of light selectively refracting the path of light supplied from the display panel 910. It may include a lenticular array 1240.

The lenticular lens 1230 includes a concave isotropic medium layer 1234 and an anisotropic medium layer 1236, and the isotropic medium layer 1234 may have a convex shape according to a designer's intention.

The lenticular array 1240 may include two substrates 1242 and a liquid crystal layer 1245 positioned between the two substrates 1242. The liquid crystal layer 1245 has liquid crystal modes such as twist nematic (TN), vertical alignment (VA), and the like, in-plane switching (IPS), and ferroelectric liquid crystal (FLC), which rotate in the horizontal direction. It can be applied, and is not limited to a specific liquid crystal mode.

However, TN, VA, etc., in which the liquid crystal is rotated in the vertical direction, have an elliptical polarization component among the polarization components of the light in the liquid crystal layer, and the light path of the elliptical polarization component is lenticular lens 1230. There is a characteristic that does not change, and therefore, the liquid crystal mode applied to the lenticular lens 1230 is preferably applied to the IPS and FLC modes in which the liquid crystal rotates in the horizontal direction.

FIG. 13 is a view illustrating a path of light adjusted according to a polarization pattern of light incident on the lenticular lens substrate of FIG. 12.

Referring to FIG. 13, when displaying a 2D image, the controller 930 controls the power to be turned off between the two substrates 1242. Accordingly, an electric field is not formed between the two substrates 1242, and the refractive index of the liquid crystal layer 1245 is not different.

Therefore, the light C1 of the linearly polarized state incident from the display panel 910 passes through the liquid crystal layer 1245 as it is and is incident on the lenticular lens 1230. In addition, the light b2 passing through the liquid crystal layer 1245 passes through the isotropic medium layer 1234 and the anisotropic medium layer 1236 of the lenticular lens 1230 as it is. Light C3 passing through the lenticular lens 1230 is incident to the left and right eyes of the viewer 1001. The viewer 1001 perceives the 2D image through the light C3.

When displaying a stereoscopic image, the controller 930 controls power to be applied between the two substrates 1242. As a result, an electric field is formed between the two substrates 1242, and the refractive index of the liquid crystal layer 1245 changes.

Accordingly, the light D1 of the linearly polarized state incident from the display panel 910 passes through the liquid crystal layer 1245, is converted into a circularly polarized state, and is incident on the lenticular lens 1230. The circularly polarized light D2 passing through the liquid crystal layer 1245 is incident on the anisotropic medium layer 1236 of the lenticular lens 1230 without changing the state, but the isotropic medium layer 1234 and the anisotropic medium layer 1236 are incident. Depending on the circularly polarized state at the interface of), it is refracted at a certain angle, the light path is changed. The light D3 whose path is changed is moved to the corresponding sweet spot and is incident on the left and right eyes of the viewer 1001. The viewer 1001 recognizes the 3D image through the viewpoint image incident to the left eye and the viewpoint image incident to the right eye.

FIG. 14 illustrates a preferred embodiment of a lenticular lens substrate in which a lens is inclined.

Referring to FIG. 14, the width of the lenticular lens substrate 920 may be a width of five subpixels. That is, the pitch of the lenticular lens substrate 920 may be 5 sub pixels. For example, the widths of the lens 1410 and the lens 1420 correspond to the horizontal widths 1455 of five subpixels, respectively.

The edge defining the width of the lens may be inclined with respect to the vertical axis 1401 of the display panel. For example, the edge 1411 of the lens 1410 is formed to be inclined with respect to the display panel vertical axis 1401.

The vertical axis of the lens may be inclined with respect to the display panel vertical axis 1401. For example, the longitudinal axis 1415 of the lens 1410 is formed to be inclined with respect to the display panel vertical axis 1401.

The edge of the lens may be formed to pass through a point spaced apart by the width of the edge in the left direction from the start point to the start point and spaced apart by the vertical width of the predetermined subpixel in the column direction from the start point. The predetermined subpixel may be three subpixels. That is, the edge of the lens is spaced apart from the start point a3 by the width of the rim in the left direction to the start point a3 and passes through the point b3 spaced by the vertical width of the three sub pixels in the column direction from the start point a3. Can be formed.

In addition, the angle α 1451 at which the edge or vertical axis of the lens is inclined may be arctan (4Ph / 3Pv), where Ph may represent the horizontal width of the subpixel, and Pv may represent the vertical width of the subpixel. For example, when Ph is three times Pv, the angle α may be arctan (4/9).

In addition, the edge of the lens may be formed to be inclined in a right direction with respect to the vertical axis 1401 of the display panel, and may be formed to be inclined in a left direction. FIG. 14 illustrates a lenticular lens substrate 920 in which the edge 1411 of the lens is inclined in a right direction with respect to the vertical axis 1401 of the display panel 910.

The controller 930 determines an image to be displayed by the subpixels of the display panel 910. The controller 930 may determine a viewpoint image to be displayed by the subpixel of the display panel 910 according to at least one of a direction in which the edge of the lens is inclined and the number of viewpoint images.

When the edge or vertical axis of the lens is inclined in the right direction, the control unit 930 displays the viewpoint image to be displayed by the subpixel in the row direction from the viewpoint image after the first sequence or after the first sequence in the viewpoint image of the previous subpixel. When the viewpoint image does not exist, it may be determined as a viewpoint image having a difference value between the sequence number and the maximum sequence number of the viewpoint image after the first sequence number in sequence. In addition, when the edge or the vertical axis of the lens is inclined in the right direction, the controller 930 controls the viewpoint image to be displayed by the subpixel in the column direction after the viewpoint image after the second sequence or after the second sequence in the viewpoint image of the previous subpixel. When there is no view image of FIG. 2, the view image having the difference value between the sequence number and the maximum sequence number of the view image after the second sequence number may be determined. The viewpoints of the first sequence number and the second sequence number may be determined based on at least one of an angle at which the edge or vertical axis of the lens is inclined and the number of view images.

When the edge or vertical axis of the lens is inclined to the right with respect to the vertical axis 1401 of the display panel 910 by an angle arctan (4/9), and the stereoscopic image display apparatus 900 displays 15 viewpoint images, the controller ( 930 may arrange the view image in the same manner as described above with reference to FIG. 5. Here, the first order number and the second order number may be determined based on the angle 1451, and the first order number may be set to 3 and the second order number may be set to 4 as shown in FIG. 5.

FIG. 15 illustrates a preferred embodiment of a lenticular lens substrate in which a lens is inclined.

FIG. 15 illustrates a lenticular lens substrate 920 having an edge or a longitudinal axis of the lens inclined in a left direction with respect to a vertical axis of the display panel.

Referring to FIG. 15, the edge of the lens may be formed to pass through a point spaced apart from the start point by the width of the edge in the right direction and spaced apart from the start point by the vertical width of the predetermined subpixel in the column direction. Here, the predetermined subpixels may be three. That is, the edge 1511 of the lens 1510 is spaced apart from the start point a4 by the width of the edge in the right direction to the start point a4 and spaced apart by the vertical width of the three subpixels in the column direction from the start point a4 ( b4). In addition, the edges of the lens 1510 and the lens 1520 may overlap each other.

In addition, an angle α 1551 in which the edge 1511 or the vertical axis 1515 is inclined with respect to the vertical axis 1501 of the display panel may be arctan (4Ph / 3Pv), where Ph represents the horizontal width of the subpixel, Pv represents the vertical width of the subpixel. When Ph is three times Pv, the angle α may be arctan (4/9).

When the edge or vertical axis of the lens is inclined in the left direction, the controller 930 displays the viewpoint image to be displayed by the subpixel in the row direction from the viewpoint image before the third sequence or before the third sequence in the viewpoint image of the previous subpixel. When the viewpoint image does not exist, the viewpoint image may be determined to have a sum of the sequence number and the maximum sequence number of the viewpoint image before the third sequence in sequence. In addition, when the edge or the vertical axis of the lens is inclined in the left direction, the controller 930 controls the view image to be displayed by the subpixel in the column direction after the view image after the fourth sequence or after the fourth sequence in the view image of the previous subpixel. If there is no view image of FIG. 4, the view image having the difference value between the order number and the maximum order number of the view image after the fourth sequence number may be determined. The viewpoints of the third sequence number and the fourth sequence number may be determined based on at least one of an angle at which the edge of the lens is inclined and the number of view images.

When the edge or vertical axis of the lens is inclined to the left by the angle arctan (4/9) with respect to the vertical axis 1401 of the display panel 910, and the stereoscopic image display apparatus 900 displays 15 viewpoint images, the controller ( 930 may arrange the view image in the same manner as described above with reference to FIG. 7. Here, the third order number and the fourth order number may be determined based on the angle 1551, and the third order number may be set to 3 and the fourth order number may be set to 4 as shown in FIG. 7.

16 is a view showing the implementation of another preferred embodiment of the stereoscopic image display method according to the present invention.

Referring to FIG. 16, the controller 930 determines a view image to be displayed on a sub pixel of the display panel 910 (S200). here. The controller 930 may check a direction in which the edge or vertical axis defining the width of the lens of the lenticular lens substrate 920 is inclined with respect to the vertical axis of the display panel 910. In addition, the controller 930 may check the number of viewpoint images included in the stereoscopic image to be displayed. The controller 930 may determine a viewpoint image to be displayed by the subpixel according to at least one of a confirmation result of the tilted direction and a confirmation result of the number of viewpoint images.

When the edge or the vertical axis is inclined in a right direction with respect to the vertical axis of the display panel 910, the controller 930 may determine a viewpoint image to be displayed by the subpixel in the manner described above with reference to FIG. 5. Also, when the edge or the vertical axis is inclined leftward with respect to the vertical axis of the display panel 910, the viewpoint image to be displayed by the subpixel may be determined in the manner described above with reference to FIG. 7.

The display panel 910 displays the viewpoint image (S210). In this case, the subpixel of the display panel 910 displays a subpixel value indicated by the position and type of the subpixel in the viewpoint image determined in operation S200. In addition, the backlight 940 may supply light to the display panel 910.

The lenticular lens substrate 920 refracts the light transmitted through the display panel 910 (S220). Light separated from the lenticular lens substrate 920 is refracted and moved to the sweet spot according to the principles described above in FIG. 11 or FIG. 13.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the embodiment in which said invention is directed. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (20)

A display panel in which red, green, and blue subpixels are alternately arranged in a row direction, and subpixels of the same color are arranged in a column direction;
A stereoscopic image filter disposed on a front surface of the display panel and alternately forming a transmissive region and an opaque region, and having an edge defining a width of the opaque region inclined with respect to a vertical axis of the display panel; And
And a controller configured to determine a viewpoint image to be displayed by the subpixels of the display panel according to the inclined direction of the edge. The method of claim 1,
The stereoscopic filter,
And a width of the opaque region to correspond to a width of four sub-pixels. The method of claim 1,
The stereoscopic filter,
And a width of the transmissive area to correspond to a width of one sub-pixel. The method of claim 1,
The stereoscopic filter,
And forming the impervious area so that the edge passes from the start point to the start point by the width of the edge in the row direction and passes the point spaced apart from the start point by the vertical width of the predetermined subpixel in the column direction. Video display device. The method of claim 1,
Wherein the angle α at which the edge is inclined is arctan (4Ph / 3Pv), wherein Ph represents the horizontal width of the subpixel, and Pv represents the vertical width of the subpixel. The method of claim 1,
The control unit,
When the edge is inclined in the right direction with respect to the vertical axis of the display panel,
A view image to be displayed by the sub-pixel,
If there is no view image after the first sequence or a view image after the first sequence in the view image of the previous sub-pixel in the row direction, the difference value between the sequence number and the maximum sequence number of the view image after the first sequence number is sequentially To a viewpoint image having
If there is no view image after the second sequence or a view image after the second sequence in the view image of the previous sub-pixel in the column direction, the difference value between the sequence number and the maximum sequence number of the view image after the second sequence number is sequentially A stereoscopic image display device, characterized in that determined by the viewpoint image having. The method of claim 1,
The control unit,
When the edge is inclined leftward with respect to the vertical axis of the display panel,
A view image to be displayed by the sub-pixel,
When the view image before the first sequence or the view image before the first sequence does not exist in the viewpoint image of the previous sub-pixel in the row direction, the sum of the sequence number and the maximum sequence number of the viewpoint image before the first sequence is sequentially. And set it as the viewpoint image
If there is no view image after the second sequence or a view image after the second sequence in the view image of the previous sub-pixel in the column direction, the difference value between the sequence number and the maximum sequence number of the view image after the second sequence number is sequentially A stereoscopic image display device, characterized in that determined by the viewpoint image having. The method of claim 1,
The control unit,
And activating and deactivating an opaque region of the stereoscopic image filter according to the type of the displayed image. The method of claim 1,
And a backlight disposed on the rear surface of the display panel and configured to supply light to the display panel. The method of claim 1,
And the display panel is a plasma display panel (PDP) or a liquid crystal display (LCD). A display panel in which red, green, and blue subpixels are alternately arranged in a row direction, and subpixels of the same color are arranged in a column direction;
A lenticular lens substrate disposed on a front surface of the display panel, the lenticular lens substrate having a plurality of lenses having a vertical axis inclined with respect to a vertical axis of the display panel; And
And a controller configured to determine a viewpoint image to be displayed by the subpixel of the display panel according to a direction in which the longitudinal axis of the lens is inclined. 12. The method of claim 11,
And the width of the lens is formed to correspond to the width of five sub-pixels. 12. The method of claim 11,
The angle α at which the longitudinal axis of the lens is inclined is arctan (4Ph / 3Pv), wherein Ph represents a horizontal width of the subpixel, and Pv represents a vertical width of the subpixel. 12. The method of claim 11,
The control unit,
When the longitudinal axis of the lens is inclined in the right direction with respect to the vertical axis of the display panel,
A view image to be displayed by the sub-pixel,
If there is no view image after the first sequence or a view image after the first sequence in the view image of the previous sub-pixel in the row direction, the difference value between the sequence number and the maximum sequence number of the view image after the first sequence number is sequentially To a viewpoint image having
If there is no view image after the second sequence or a view image after the second sequence in the view image of the previous sub-pixel in the column direction, the difference value between the sequence number and the maximum sequence number of the view image after the second sequence number is sequentially A stereoscopic image display device, characterized in that determined by the viewpoint image having. 12. The method of claim 11,
The control unit,
When the longitudinal axis of the lens is inclined leftward with respect to the vertical axis of the display panel,
A view image to be displayed by the sub-pixel,
When the view image before the first sequence or the view image before the first sequence does not exist in the viewpoint image of the previous sub-pixel in the row direction, the sum of the sequence number and the maximum sequence number of the viewpoint image before the first sequence is sequentially. And set it as the viewpoint image
If there is no view image after the second sequence or a view image after the second sequence in the view image of the previous sub-pixel in the column direction, the difference value between the sequence number and the maximum sequence number of the view image after the second sequence number is sequentially A stereoscopic image display device, characterized in that determined by the viewpoint image having. 12. The method of claim 11,
The lenticular lens substrate,
Further comprising a lenticular array for converting transmitted light into circularly polarized light,
The control unit,
And activating and deactivating the lenticular array according to the type of the displayed image. 12. The method of claim 11,
And a backlight disposed on the rear surface of the display panel and configured to supply light to the display panel. 12. The method of claim 11,
And the display panel is a plasma display panel (PDP) or a liquid crystal display (LCD). Determining a viewpoint image to be displayed by a subpixel of the display panel from among a plurality of viewpoint images according to an inclined direction of an edge defining a width of an opaque region;
Displaying the predetermined view image through a sub pixel of the display panel; And
Separating the displayed viewpoint image using a transmission region formed between an opaque region,
The edge is formed to be inclined with respect to the vertical axis of the display panel, wherein the display panel has red, green, and blue subpixels alternately arranged in a row direction, and subpixels of the same color are arranged in a column direction. Characterized in three-dimensional image display method. Determining a viewpoint image to be displayed by a sub-pixel of the display panel among a plurality of viewpoint images according to a direction in which the longitudinal axis of the lens is inclined;
Displaying the predetermined view image through a sub pixel of the display panel; And
Refracting the displayed view image using the lens;
The vertical axis of the lens is formed to be inclined with respect to the vertical axis of the display panel, wherein the display panel has red, green, and blue subpixels alternately arranged in a row direction, and subpixels of the same color are arranged in a column direction. Stereoscopic image display method characterized in that.

Images