JPH0996777A - Three-dimensional display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-dimensional display corresponding to a system for displaying a right eye image and a left eye image on every odd numbered and even numbered line of scanning lines. SOLUTION: As for the display constituted of an opening part 2 arranged in a matrix state, a display pixel part 1 constituted of a black matrix 3 for separating between the opening parts 2 and for displaying the right eye image and the left eye image with a prescribed parallax and a lenticular lens 4 for separating the displayed right eye image and left eye image in terms of space and capable of obtaining a stereoscopic vision by observing the image displayed on the display pixel part 1 through the lenticular lens 4, the black matrix 3 is formed to a pattern of covering the right half part of the opening part 2 for displaying the right eye image, and covering the left half part of the opening part 2 for displaying the left eye image. And, as for the opening part 2, the part covered with the black matrix 3 and the part not covered with the black matrix 3 are separated by the lenticular lens 4 in terms of space.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic display for stereoscopic display used in televisions, videos, computer monitors, game machines and the like.

[0002]

2. Description of the Related Art As a three-dimensional display, various types have been put into practical use. As a typical example, a dedicated image for the right eye and a left eye with different polarization states is generated from the image displayed on the display, and stereoscopic vision is obtained by observing the images separately using polarization glasses. There is something. Specifically, by providing a liquid crystal shutter on the display side and driving the liquid crystal shutter in synchronization with a field signal when displaying an image on the display, the polarization state of the display image is switched to the right eye and the left eye. A stereoscopic view is realized by generating a dedicated image for use by the observer and observing the generated dedicated images alternately with the left and right eyes using polarization glasses in a time-division manner. However, this method has the troublesomeness that the viewer has to wear polarized glasses.

Therefore, recently, as a stereoscopic display that does not use polarized glasses, a flat panel display such as a liquid crystal television, which is observed through a lenticular lens, has been proposed. Hereinafter, a conventional stereoscopic display using this lenticular lens will be described.

As a stereoscopic display that does not use polarized glasses, there is one in which a lenticular lens is provided on the display screen of the display to spatially separate the images that enter the left and right eyes for stereoscopic viewing. 4A and 4B are diagrams for explaining the principle of a conventional stereoscopic display using a lenticular lens. FIG. 4A is a diagram schematically showing an area observed through the lenticular lens, and FIG. 4B is a liquid crystal display. It is the figure which showed the pattern of a black matrix.

In FIG. 4, reference numeral 101 denotes a display pixel portion of a liquid crystal display, which is composed of a plurality of openings 102 for forming pixels in a matrix and a black matrix 103 for separating the openings 102 (each pixel). ing. A color filter is arranged in the opening 102.

Reference numeral 104 denotes a lenticular lens in which a plurality of cylindrical lenses each having a semicircular cross section are arranged in a sheet shape, and the display pixel portion 1 is arranged so that the focal plane thereof is located. In the figure, other parts constituting a liquid crystal display such as a glass substrate, a color filter, an electrode, a polarizing plate and a backlight are omitted for convenience.

The pixels of the display pixel section 101 are alternately arranged so that the pixels for displaying the image for the right eye (R) and the pixels for displaying the image for the left eye (L) form a pair, and A vertical stripe image of the right-eye image (R) and the left-eye image (L) is displayed as a whole. A pair of a pixel displaying the image for the right eye (R) and a pixel displaying the image for the left eye (L) is provided corresponding to the pitch of the ridges of each lens of the lenticular lens 104.

In the stereoscopic display constructed as described above, the image for right eye (R) and the image for left eye (L) having a predetermined parallax in the display pixel section 101 are displayed. When an observer observes an image displayed on the display pixel unit 101 from a predetermined observation position through the lenticular lens 104, the right eye image (R) is displayed by the right eye and the left eye is displayed by the left eye as shown in FIG. The eye image (L) is observed. This realizes stereoscopic vision. Such techniques are used for both still images and moving images.

In FIG. 4, the pixels of the image for the right eye (R) and the image for the left eye (L) located in the central portion of the display pixel portion 1 are separated into the left and right which are respectively observed through the lenticular lens 4. Although only the space area shown in FIG. 2 is shown, the right and left image (R) and the left eye image (L) of the other part are similarly observed through the lenticular lens 4 and are separated into left and right spaces. There are regions, and these left and right separated spatial regions overlap at the positions of the left and right eyes at each predetermined observation position, and the right eye image and the left eye image are uniformly observed over the entire image. It has become so.

[0010]

Generally, in a television or the like, a 2: 1 interlaced scan (interlaced scan), that is, a scan line is divided into odd-numbered and even-numbered scans, which are odd-numbered every 1/60 seconds. Scanning is performed to alternately produce a screen and an even-numbered screen. In a stereoscopic display using a display in which such interlaced scanning is performed, for example, stereoscopic viewing is realized by displaying an image for the right eye with odd lines of scanning lines and displaying an image for the right eye with even lines. It

In the conventional stereoscopic display described above, the two pixels for displaying the image for the right eye and the image for the left eye are provided corresponding to the pitch of one mountain of the lenticular lens. In order to support the method of displaying the image for the right eye and the image for the left eye for each odd / even line of the scanning line as described above, it is necessary to perform processing such as changing the pixel by software or the drive circuit of the liquid crystal display. However, there is a problem that it cannot be handled easily.

By using the pixels of the right-eye image for the odd-numbered lines of the scanning line and the pixels of the left-eye image for the even-numbered line, the left and right images for each odd-numbered and even-numbered line of the scanning line are used. Although it is possible to support a method of displaying an image in which the images are combined, in this case, since pixels of either the image for the right eye or the image for the left eye are thinned out for each line, the resolution in the horizontal direction is reduced. Will decrease.

An object of the present invention is to solve the above-mentioned problems and to easily support a method of displaying an image for the right eye and an image for the left eye for each odd / even line, and to provide a horizontal resolution. It is to provide a stereoscopic display that does not deteriorate.

[0014]

In order to achieve the above object, the stereoscopic display of the present invention comprises a plurality of openings arranged in a matrix and a black matrix for separating the openings. Display means for displaying a right-eye image and a left-eye image having vertical stripes having a predetermined parallax by the opening, and the right-eye image and the left-eye image displayed on the display means are spatially separated from each other. In the stereoscopic display that has a separation unit that provides a stereoscopic view by observing an image displayed on the display unit through the separation unit, the black matrix is
The right half for the opening to display the image for the right eye,
The opening for displaying the image for the left eye has a pattern for hiding the left half, and the separating means spatially divides each opening of the display means into a portion hidden by the black matrix and a portion not hidden by the black matrix. It is characterized by separating into.

In the above case, the display means displays the right-eye image on one of the odd-numbered line or the even-numbered line of the plurality of pixel lines having the opening as a pixel, and displays the left-eye image on the other. May be

In each of the three-dimensional displays described above, the separating means is a lenticular lens in which a plurality of lenses having a cylindrical refracting surface are arrayed, and each opening of the display means is a lens mountain of the lenticular lens. You may make it arrange | position so that 1 opening may respond | correspond to 1 pitch with respect to a pitch. Further, the separating means is a parallax barrier having stripe-shaped openings, and each opening of the display means is arranged so that one opening corresponds to one pitch with respect to the pitch of the openings of the parallax barrier. It may be done.

<Operation> In the stereoscopic display of the present invention,
The right half of the opening for displaying the image for the right eye and the left half for the opening for displaying the image of the left eye are hidden by the black matrix, and the separation means hides each opening by the black matrix. By spatially separating the non-hidden portion and the non-hidden portion, stereoscopic vision is realized. For example, when the image for the right eye is displayed by the odd lines of the scanning lines, and the image for the left eye is displayed by the even lines, the right half of the opening for the odd line,
If the pattern of the black matrix is configured so as to hide the left half of the opening for the even-numbered lines, the observer uses the separating means to view the right-eye image (opening) with the right eye and the left-eye with the odd-numbered line. Observe the black matrix,
Left eye image (opening) on even lines
To observe the black matrix with the right eye,
This realizes stereoscopic vision. As described above, according to the present invention, since stereoscopic vision is realized by spatially separating the portion hidden by the black matrix and the portion not hidden by each opening portion, for example, scanning in interlaced scanning is performed. When the method for displaying the image for the right eye and the image for the left eye for every odd / even line of lines is adopted, the resolution in the horizontal direction does not decrease. Further, since it is possible to easily cope with the problem by changing the pattern of the black matrix, it is not necessary to perform the process of changing the pixel by software or the drive circuit of the liquid crystal display as in the conventional case.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment> The stereoscopic display of this embodiment displays a right-eye image and a left-eye image for each odd / even line of scanning lines, and observes these images spatially separated from each other. By doing so, stereoscopic vision is realized.

FIG. 1 is a diagram for explaining a schematic structure of a stereoscopic display according to a first embodiment of the present invention. FIG. 1 (a) is a diagram schematically showing a region observed through a lenticular lens, (B) is a diagram showing a pattern of a black matrix of a liquid crystal display.

In FIG. 1, reference numeral 1 denotes a display pixel portion of a liquid crystal display, which has a plurality of openings 2 arranged in a matrix. A black matrix 3 separates the openings 2 (pixels). Color filters R, G, and B are arranged in the openings 2 (pixels), respectively, so that images of vertical stripes of R, G, and B are displayed on the entire display screen. In the display pixel unit 1, for example, the image for the right eye is displayed by the odd lines of the scanning lines, and the image for the left eye is displayed by the even lines. Here, the image for the right eye and the image for the left eye that are displayed are images having a predetermined parallax. E _L and E _R indicate the positions of the left and right eyes of the observer.

Reference numeral 4 denotes a lenticular lens in which a plurality of cylindrical lenses having a semicircular cross section are arranged in a sheet shape, and the right eye image and the left eye image displayed in the display pixel section 1 are spatially separated from each other. Is a separating means. The display pixel unit 1 is arranged so as to come to the focal plane of the lenticular lens 4. In the figure, other parts constituting the liquid crystal display such as a glass substrate, a color filter, an electrode, a polarizing plate, an antireflection film, and a backlight are omitted for convenience.

Each opening 2 (each pixel) of the display pixel portion 1 is
One pixel corresponds to one pitch with respect to the pitch of the lenticular lenses 4. The black matrix 3 has a pattern that hides the right half of the opening 2 in the odd lines of the scanning lines and the left half of the opening 2 in the even lines, and each opening 2 is hidden by the black matrix 3. It is arranged so that the boundary line between the open portion and the non-hidden portion is located approximately in the center of the corresponding lens. That is, when an observer observes the display pixel unit 1 from a predetermined observation position through the lenticular lens 4, the left eye of the opening 2 (opened portion), the left eye of the right eye, and the left eye in the odd line. The right half of the opening 2 (black matrix) is observed at, and in even lines, the left half of the opening 2 (black matrix) with the right eye and the right half of the opening 2 with the left eye (opened portion)
Is being observed.

In the stereoscopic display constructed as described above, when an observer observes the display pixel unit 1 from the predetermined observation position through the lenticular lens 4, the image for the right eye displayed by the odd lines of the scanning lines. Is the right eye, and the images for the left eye displayed by the even lines are spatially separated and observed by the left eye. Thereby, stereoscopic vision is realized.

<Second Embodiment> In the first embodiment described above, the right-eye image is displayed by the odd lines of the scanning lines, the left-eye image is displayed by the even lines, and these images are spatially divided. However, if the G pixels between the odd and even lines are replaced by changing the software or the driving circuit, it is difficult to see the omission of the scanning lines of the left and right images to be observed. can do. Here, a stereoscopic display in which the omission of the scanning lines of the left and right images to be observed is difficult to see will be specifically described.

FIG. 2 is a view for explaining the schematic constitution of a stereoscopic display according to the second embodiment of the present invention. FIG. 2A is a view schematically showing a region observed through a lenticular lens. (B) is a diagram showing a pattern of a black matrix of a liquid crystal display.

In the stereoscopic display of this embodiment, the G pixels are switched between the odd and even lines by changing the software or the driving circuit, and the black matrix pattern in the G pixels of the odd and even lines is different from that described above. It has the same configuration as that of the first embodiment. In the drawings, the same components are designated by the same reference numerals.

In the display pixel unit 1, the right eye image is displayed on the R and B pixels of the odd line, the left eye image is displayed on the G pixel, and the left eye image is displayed on the R and B pixels of the even line. The image for the right eye is displayed on the G pixel.

The pattern of the black matrix 3 is such that the right half of the R and B pixels and the left half of the G pixel are hidden for the odd lines of the display pixel section 1 and the left half of the R and B pixels for the even lines. , The right half of the G pixel is hidden.

In the above-mentioned stereoscopic display, when an observer observes the display pixel section 1 from a predetermined observation position through the lenticular lens 4, the observer is displayed by the right eye on the R and B pixels of the odd line. Right eye image and even line G
To observe the image for the right eye displayed on the pixel, and to observe the image for the left eye displayed on the R and B pixels of the even line and the image for the left eye displayed on the G pixel of the odd line on the left eye. Become.
Thus, since the image for the right eye and the image for the left eye are displayed by both the odd-numbered line and the even-numbered line, it becomes difficult to see the omission of the scanning lines of the left and right images to be observed, and a smoother image is obtained. Is obtained.

<Third Embodiment> Although the stereoscopic displays of the first and second embodiments described above use the lenticular lens, a parallax barrier may be used instead of the lenticular lens. Hereinafter, a stereoscopic display using a parallax barrier will be specifically described.

FIG. 3 is a diagram for explaining the schematic structure of a stereoscopic display according to a third embodiment of the present invention, and (a) is a diagram schematically showing a region observed through a parallax barrier. , (B) are diagrams showing a black matrix pattern of a liquid crystal display.

The stereoscopic display of this embodiment has the same structure as that of the first embodiment described above except that a parallax barrier is used instead of the lenticular lens. In the drawings, the same components are designated by the same reference numerals.

The parallax barrier 5 is a separation means for spatially separating the right-eye image and the left-eye image displayed in the display pixel section 1. This parallax barrier 5
Has a stripe-shaped opening, and the display pixel portion 1 is opened from each opening.
Are arranged at predetermined positions on the display pixel unit 1 so that the pixels can be selectively seen. R of the display pixel unit 1,
The openings 2 forming the G and B pixels are arranged so that one pixel corresponds to one pitch with respect to the pitch of the openings of the parallax barrier 5.

Similar to the first embodiment described above, the black matrix 3 has a pattern in which the right half of the opening 2 is hidden in the odd lines of the scanning lines and the left half of the opening 2 is hidden in the even lines. . Each opening 2 of the display pixel portion 1 is arranged such that a boundary line between a portion hidden by the black matrix 3 and a portion not hidden by the black matrix 3 is located at the center of the corresponding opening of the parallax barrier 5. . That is, when an observer observes the display pixel unit 1 through the parallax barrier 5 from a predetermined observation position, the left eye of the opening 2 (opened portion) of the right eye and the left eye of the odd line Right half of opening 2 (black matrix)
In the even lines, the left half of the opening 2 (black matrix) is observed by the right eye, and the right half (opened portion) of the opening 2 is observed by the left eye.

Also in the three-dimensional display of this embodiment,
Similar to the first embodiment, when an observer observes the display pixel unit 1 from a predetermined observation position through the parallax barrier 5, the image for the right eye displayed by the odd lines of the scanning lines is the right eye, The images for the left eye displayed by the even lines are spatially separated and observed by the left eye. Thereby, stereoscopic vision is realized.

In the present embodiment, the description has been given of the case where the parallax barrier is used in place of the lenticular lens of the stereoscopic display of the first embodiment, but it is also applicable to the structure like the stereoscopic display of the second embodiment. Needless to say, it is applicable.

Although the three-dimensional display using the liquid crystal display has been described in the first to third embodiments,
The present invention is not limited to this. For example, the same pixel arrangement and black matrix pattern can be applied to a projection type three-dimensional display.

[0039]

Since the present invention is configured as described above, it has the following effects.

According to the first and second aspects of the present invention, for example, in the case where the system for displaying the image for the right eye and the image for the left eye for every odd / even line of scanning lines in interlaced scanning, There is an effect that an image can be displayed without lowering the horizontal resolution. Furthermore, since it can be easily dealt with by changing the pattern of the black matrix, it is possible to use a general-purpose liquid crystal display, and it is possible to significantly reduce the manufacturing cost.

According to the third aspect of the invention, it is possible to provide a stereoscopic display using a lenticular lens that achieves each of the above effects.

According to the fourth aspect of the invention, it is possible to provide a stereoscopic display using a parallax barrier exhibiting each of the above effects.

[Brief description of drawings]

FIG. 1 is a diagram for explaining a schematic configuration of a stereoscopic display according to a first embodiment of the present invention, (a) schematically showing a region observed through a lenticular lens,
(B) is a diagram showing a pattern of a black matrix of a liquid crystal display.

FIG. 2 is a diagram for explaining a schematic configuration of a stereoscopic display of a second embodiment of the present invention, (a) is a diagram schematically showing a region observed through a lenticular lens,
(B) is a diagram showing a pattern of a black matrix of a liquid crystal display.

FIG. 3 is a diagram for explaining a schematic configuration of a stereoscopic display of a third embodiment of the present invention, (a) is a diagram schematically showing a region observed through a parallax barrier,
(B) is a diagram showing a pattern of a black matrix of a liquid crystal display.

4A and 4B are diagrams for explaining the principle of a conventional stereoscopic display using a lenticular lens, FIG. 4A is a diagram schematically showing a region observed through the lenticular lens, and FIG. 4B is a liquid crystal display. It is a figure showing the pattern of the black matrix.

[Explanation of symbols]

 1 Display Pixel Area 2 Opening Area 3 Black Matrix 4 Lenticular Lens 5 Parallax Barrier

Claims (4)

[Claims] 1. A right-eye image in the form of a vertical stripe having a predetermined parallax formed by a plurality of apertures arranged in a matrix and a black matrix separating the apertures from each other, and a left image. Display means for displaying an eye image, and a separation means for spatially separating the right eye image and the left eye image displayed on the display means, respectively, to the display means via the separation means. In a stereoscopic display that obtains stereoscopic vision by observing the displayed image, the black matrix, the right half for the opening for displaying the image for the right eye, for the opening for displaying the image for the left eye A pattern for concealing the left half is used, and the separating means spatially divides each of the openings of the display means into a portion hidden by the black matrix and a portion not hidden by the black matrix. Stereoscopic display, characterized by. 2. The stereoscopic display according to claim 1, wherein the display unit displays a right-eye image on one of an odd line and an even line of lines of a plurality of pixels having an opening as a pixel, and on the other. A stereoscopic display that displays images for the left eye. 3. The stereoscopic display according to claim 1, wherein the separating unit is a lenticular lens in which a plurality of lenses having a cylindrical refracting surface are arranged, and each opening of the display unit is A three-dimensional display characterized in that one opening is arranged corresponding to one pitch with respect to the pitch of the mountain of the lenticular lens. 4. The stereoscopic display according to claim 1, wherein the separating means is a parallax barrier having a stripe-shaped opening, and each opening of the display means is an opening of the parallax barrier. The three-dimensional display is characterized in that one opening corresponds to one pitch with respect to the pitch.