WO2004082297A1

WO2004082297A1 - Stereoscopic image display device

Info

Publication number: WO2004082297A1
Application number: PCT/JP2003/002863
Authority: WO
Inventors: Seijiro Tomita
Original assignee: Seijiro Tomita
Priority date: 2003-03-11
Filing date: 2003-03-11
Publication date: 2004-09-23
Also published as: JPWO2004082297A1; AU2003221346A1

Abstract

A stereoscopic image display device capable of obtaining a stereoscopic image having a natural protrusion amount even when the image generation condition and the image reproduction condition are different. The device includes a stereoscopic image signal generation circuit for generating a stereoscopic image signal, display means for displaying a stereoscopic image, and a drive circuit for driving the display means. The stereoscopic image signal generation circuit has information acquisition means for acquiring image information on an image which can be viewed stereoscopically and display device information on a display area of the display means, and offset setting means for setting an offset value for displaying a left eye image and a right eye image which are shifted from each other and causing the display means to display a stereoscopic image signal giving a viewer a uniform stereoscopic feeling for image information and display information of different conditions.

Description

Specification

3D image display device

Technical field

The present invention relates to a stereoscopic video display device, and more particularly to a stereoscopic video display device capable of changing a stereoscopic degree according to a display screen size when shooting conditions of a stereoscopic image are different.

Technology background

Conventionally, when capturing a stereoscopic image, two image capturing units are provided, and a right image is captured by a first image capturing unit and a left eye image is captured by a second image capturing unit. At this time, the optical axis of the first imaging unit and the optical axis of the second imaging unit intersect on the imaging target surface to form a cross point (compensation point) CP, which is a convergence point, to capture a stereoscopic image. are doing. Various techniques have been proposed for measuring the distance from the imaging target surface to the imaging device (that is, the distance to the CP).

However, according to the invention technology described in Japanese Patent Application Laid-Open No. 2000-213510, even when the distance to the CP is measured when capturing a stereoscopic image, the distance to the CP (CP information) is not sufficient. It was not recorded at the same time as the stereoscopic video. Even when CP information was recorded, the CP information was not used as a signal as a reference for a stereoscopic effect when a stereoscopic video was reproduced.

In particular, when the same content is played back on display devices with different screen sizes, the amount of parallax between the left and right images differs, and the amount of projection from the screen changes depending on the screen size. There is. In other words, stereoscopic video content intended for large-scale amusement facilities is produced assuming a large screen size on which the content is screened. Therefore, unless the theater or device has the same screen size, the correct stereoscopic video content is used. When the screen size was too large, the three-dimensional effect was too strong to give an unpleasant feeling. In addition, when the screen size was small, the three-dimensional effect was small and unsatisfactory.

Also, since such content is a splice of various scenes, the shooting conditions of each scene, the focal length of the lens of the shooting unit, the interval between the two shooting units, etc. are not necessarily the same, Simply joining these scenes together gives A different three-dimensional effect was displayed on the screen, giving the viewer a sense of discomfort and physical discomfort.

Furthermore, the positional relationship between the stereoscopic image display device and the observer is not always constant, and the observer is not always at the position intended by the content creator, and the observer is shifted from the predetermined observation position of the stereoscopic image device. In this case, a correct stereoscopic image cannot be observed. For this reason, when producing stereoscopic video content, the screen size (display or screen size) to be finally displayed is assumed, and the cross-point of the stereoscopic camera for shooting and the amount of parallax in computer graphics are adjusted. However, once the content has been produced, the stereoscopic effect changes when the screen size of the stereoscopic video display device changes, so it was necessary to recreate the stereoscopic video according to the screen size. Also, when creating a 3D image using CG (Computer Graphics), rendering had to be redone.

As described above, conventionally, there is no method for adjusting the amount of parallax determined in the content once produced at the time of reproduction, so that the viewer has to adjust the stereoscopic effect depending on the distance between the viewing position and the screen. I didn't get it.

In addition, when broadcasting stereoscopic video, there is no way to automatically adjust the stereoscopic effect of stereoscopic video by automatically supporting an unspecified number of viewers and a stereoscopic video display device having various screen sizes. It is difficult to broadcast a stereoscopic video to a specific majority. In order for stereoscopic images to spread throughout the world, technology that automatically adjusts the stereoscopic effect according to the screen size is indispensable.

Therefore, an object of the present invention is to provide a stereoscopic video display device that can automatically obtain a stereoscopic video with a natural pop-out amount even when video generation conditions and video reproduction conditions are different.

Disclosure of the invention

In the present invention, means for solving the above problems are as follows.

The invention according to claim 1 is a stereoscopic video display device that displays different video images to the left and right eyes of an observer to display a stereoscopically visible video, and a stereoscopic video signal including a left-eye video and a right-eye video. A three-dimensional video signal generation circuit for generating a three-dimensional video signal, a display means for displaying a three-dimensional video image, and a drive circuit for driving the display means. Information acquisition means for acquiring image information relating to the stereoscopically visible image, and display device information relating to a display area of the display means; and the left eye image and the right eye image based on the image information and the display device information. And an offset value for setting an offset value for displaying the image information in a different manner, and providing a stereoscopic image signal that gives the observer the same stereoscopic effect to video information and display information under different conditions. The stereoscopic video display device is characterized in that the driving circuit displays a stereoscopic video on the display means based on a stereoscopic video signal output from the stereoscopic video signal generation circuit. According to the present invention, it is possible to obtain a stereoscopic image in which the optimal stereoscopic degree (depth amount) corresponding to the stereoscopic image display device is adjusted.

According to a second aspect of the present invention, in the stereoscopic image display device according to the first aspect, an observer position detecting unit that acquires observation position information regarding a positional relationship between the display screen and the observer, A storage unit configured to store display screen size information relating to a display screen size and the observation position information as information relating to a display area of the display unit, wherein the information acquisition unit includes the display screen size information and the observation position from the storage unit. And information.

According to the present invention, it is possible to obtain a stereoscopic image in which the optimal stereoscopic degree (depth amount) corresponding to the screen size of the display is adjusted even if the display is replaced.

The invention according to claim 3 is characterized in that the observer position detecting means is arranged integrally with the stereoscopic video display device itself.

According to the present invention, there is no need to separately install the observer position detecting means in addition to the main body of the stereoscopic video display device.

The invention according to claim 4 is characterized in that the observer position detecting means is arranged at a position distant from the main body of the three-dimensional image display device.

ADVANTAGE OF THE INVENTION According to this invention, an observer position detection means can be arrange | positioned in a suitable place in order to detect the position of an observer, and the position of an observer can be detected correctly.

The invention according to claim 5 is characterized in that the observer position detecting means includes an ultrasonic transmitter and an ultrasonic receiver.

ADVANTAGE OF THE INVENTION According to this invention, it is hard to be influenced by surrounding noise etc. compared with the detection of the observer by other means which uses an ultrasonic wave for the observer position detection means, and can perform accurate detection. It can be carried out.

The invention according to claim 6 is the stereoscopic video signal generation circuit according to claims 1 to 5, wherein the information acquiring means is configured to reproduce the stereoscopic video defined in association with the stereoscopic video. Acquisition of suitable screen size information on a suitable screen size and suitable position information on a position up to a display screen suitable for an observer at the time of playback as the video information, and display screen information on a screen size of the stereoscopic video display device. Acquiring the size information and the observation position information as the display device information, and the offset setting unit is configured to perform the offset setting based on the optimal screen size information, the adaptive viewing distance information, the display screen size information, and the observation position information. The offset of the left-eye image and the right-eye image is set to adjust the stereoscopic effect of the displayed image.

According to the present invention, even if the screen size of the stereoscopic video display device changes or the viewing distance of the observer changes due to the information related to the reproduction of the stereoscopic video defined in association with the stereoscopic video, these changes occur. It is possible to obtain a stereoscopic image adjusted to the optimal stereoscopic degree (depth amount) corresponding to the image.

The invention according to claim 7 is the stereoscopic image display device according to claims 1 to 5, wherein the information acquisition unit is configured to determine an optical axis of a left-eye image camera and a right-eye image defined in association with a stereoscopic image. Camera distance information on the distance from the optical axis of the camera for camera, and cross point information on the distance to the intersection between the optical axis of the left-eye video camera and the optical axis of the right-eye video camera as the video information. The offset setting means sets an offset between a left-eye image and a right-eye image based on the camera distance information and the cross point information, and adjusts a three-dimensional effect of an image displayed on the display means. Features.

According to the present invention, it is possible to obtain a stereoscopic image in which the optimal stereoscopic degree (depth amount) corresponding to the screen size is adjusted by using the cross-point information recorded when the stereoscopic image is recorded.

The invention according to claim 8 is the stereoscopic video display device according to any one of claims 1 to 7, further comprising an input means for allowing a viewer to input information regarding a stereoscopic effect, wherein the offset is provided. The image setting means sets an offset between a left-eye image and a right-eye image based on the information input to the input means, and sets an image displayed on the display means. The stereoscopic effect of the image is adjusted.

According to the present invention, it is possible to obtain a stereoscopic image in which the stereoscopic degree (depth amount) is adjusted according to the viewer's preference.

The invention according to claim 9 is the stereoscopic image display device according to any one of claims 1 to 8, wherein the left-eye image frame memory that stores the left-eye image and the right-eye image are displayed. A right-eye video frame memory for storing; the offset setting means comprises timing control means for controlling timing of reading video data from the left-eye video frame memory and / or the right-eye video frame memory; and The control means may advance or delay the timing of reading the video data from one of the left-eye video frame memory and the right-eye video frame memory as compared with the timing of reading the video data from the other frame memory. Offset between the left eye image and the right eye image is set.

According to the present invention, the offset of the left and right eye images can be set with a simple circuit.

An invention according to claim 10 is the stereoscopic video signal generation circuit according to any one of claims 1 to 9, wherein: a stereoscopic video frame memory that stores a stereoscopic video; and the left-eye video frame. Signal switching means for switching between left-eye video data read from the memory and right-eye video data read from the right-eye video frame memory and inputting the same to the stereoscopic video frame memory. . ADVANTAGE OF THE INVENTION According to this invention, it can synthesize | combine the image in which the offset of the left-right image was set, and store it in a frame memory. The invention according to claim 11 is the stereoscopic image display device according to any one of claims 1 to 10, wherein a horizontal phase between the left-eye image and the right-eye image is advanced or delayed. The offset between the left-eye image and the right-eye image is set.

According to the present invention, it is possible to easily control the setting of the offset of the left and right eye images.

The invention described in claim 12 is any one of claims 1 to 11 In the stereoscopic video display device according to (1), when an offset between the left-eye video and the right-eye video is set, an area where information is missing at left and right edges of the left-eye video and the right-eye video is a missing area. One or both of the neighboring left-eye image and right-eye image are enlarged and displayed in the horizontal and vertical directions.

According to the present invention, even when the left and right eye images are shifted, it is possible to display a stereoscopic image without a sense of incongruity without missing the screen.

The invention according to claim 13 is the stereoscopic image display device according to any one of claims 1 to 5, wherein the display unit includes: an image display unit configured to display an image using transmitted light; and a light source. And a light source device comprising an LED array in which white LEDs or RGB LEDs are integrally arranged, and the offset setting means sets the white LEDs or RGB LEDs of the LED array based on the offset. It is equipped with LED control means for controlling lighting.

According to the present invention, a white LED or an RGB LED, which consumes little power and has a fast on / off switching speed, is used as a light source, so that the light source can be freely turned on by controlling the LED control means. Electric power can be reduced.

The invention according to claim 14 is the stereoscopic image display device according to claim 13, wherein the LED control means of the offset setting means is configured to display an observation image of the observer based on the observer position information. Lighting control of the white LED or the RGB LED so as to maintain the above.

ADVANTAGE OF THE INVENTION According to this invention, an appropriate image can be displayed even if the observer moves and the observer is located at a plurality of different positions.

The light according to claim 15 is the stereoscopic image display according to claim 13, wherein each of the LED arrays provided above and below the light source device has a right-eye image display unit and a left-eye image display. It is characterized in that it forms a part.

According to the present invention, display control of a stereoscopic image can be performed with a high degree of freedom by controlling light emission of the right-eye image display unit and the left-eye image display unit of the LED array by the LED control unit.

BRIEF DESCRIPTION OF THE FIGURES FIG. 1 is a block diagram showing a configuration of a stereoscopic video display device according to one embodiment of the present invention.

FIG. 2 is a block diagram showing a display control circuit of the stereoscopic video display device shown in FIG.

FIG. 3 is a diagram showing how a viewer sees a stereoscopic image.

FIG. 4 is a diagram showing how a viewer sees a stereoscopic image.

FIG. 5 is a diagram showing how a viewer sees a stereoscopic image.

FIG. 6 is a diagram illustrating how a viewer sees a stereoscopic image.

FIG. 7 is a view showing how a viewer sees a stereoscopic image.

FIG. 8 is a diagram showing a configuration of the display means.

FIG. 9 is an exploded perspective view showing a detailed configuration of the display device.

FIG. 10 is a diagram showing a display state of the liquid crystal of the display device.

FIG. 11 is a diagram illustrating the polarization direction of the checkerboard of the display device.

FIG. 12 is a diagram showing a state in which an appropriate image is displayed to observers at different positions.

FIG. 13 is a diagram showing a configuration of a stereoscopic video display device according to another embodiment of the present invention.

FIG. 14 is a diagram showing a configuration of a stereoscopic video display device according to still another embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 13 show an example of a configuration of a stereoscopic video display device according to an embodiment of the present invention.

FIG. 1 is a block diagram showing a configuration of the stereoscopic video display device according to the present embodiment, FIG. 2 is a block diagram showing a display control circuit of the stereoscopic video display device shown in FIG. 1, and FIGS. 6 and 7 show the appearance position of the stereoscopic image, FIG. 8 shows the configuration of the display means, and FIG. 9 shows details of the display device. FIG. 10 is a diagram showing the display state of the liquid crystal of the display device, FIG. 9 is a diagram showing the polarization direction of the checkerboard of the display device, and FIG. Appropriate for the observer It is a figure showing the state where an image is displayed.

That is, as shown in FIG. 1, the stereoscopic video display device 1 according to the embodiment of the present invention includes a display control circuit 100 and a display unit 121 formed of, for example, a liquid crystal display device.

In the present embodiment, the display control circuit 100 includes a stereoscopic video signal generating circuit 101 for generating a stereoscopic video signal composed of a left-eye video and a right-eye video, and a driving circuit 1002 for driving the display means 121. The stereoscopic video signal generation circuit 101 includes video information related to the stereoscopically visible video, that is, a size of a display image assumed at the time of production, a position of an observer, and cross-point information. Image information acquiring means 10 3 for acquiring the information of the display area of the display means, ie, the image size actually displayed, and the information acquiring means 10 4 of acquiring the position information of the observer with respect to the display device. An offset value for shifting and displaying the left-eye image and the right-eye image based on the image information and the display device information is set to be the same for an observer for image information and display information under different conditions. of And an offset setting means 106 for displaying a stereoscopic image signal giving a stereoscopic effect on the display means 121.

As shown in FIG. 2, the stereoscopic video signal generation circuit 101 according to the present embodiment includes, as data recorded at the time of shooting, left-eye video 10, right-eye video 11, and a cross-point at the time of shooting. Distance (CP information) 13 is input. The left-eye image 10 is shot by the left-eye camera, and the right-eye image 11 is shot by the right-eye camera arranged side by side with the left-eye camera. Further, the left-eye camera and the right-eye camera are arranged at an angle from the position where the optical axes are parallel so that their optical axes intersect with each other, and a point where the optical axes intersect exists on the imaging target surface. Cross point (CP).

In addition, the shooting device measures the distance to the CP when shooting stereoscopic images by laser distance measurement, the inclination between the left-eye camera and the right-eye camera, and a cross-point data input device that the photographer inputs. 2 is provided, and when shooting a 3D image, information on the distance to the CP is recorded along with the 3D image as CP information. The distance between the left-eye camera and the right-eye camera (interocular distance) is also recorded as CP information. This interocular distance information corresponds to the distance between the human eyes, and is generally selected between 63 mm and 68 mm. The left-eye video 1 ◦ input to the stereoscopic video signal generation circuit is digitized by the AD converter 20 and recorded in the left-eye video frame memory 30. Similarly, the input right-eye video 11 is digitized by the AD converter 21 and recorded in the right-eye video frame memory 31. In addition, the AD converters 20 and 21 are supplied with a feedback signal 22 for AD conversion from the switching control unit 41. The left-eye video and right-eye video digitized and recorded in the frame memories 30 and 31 are input to the signal switch 40. The signal switch 40 records the combined stereoscopic video in the composite frame memory 50 by switching and reading the left-eye video and the right-eye video, and generates a composite stereoscopic video signal. The signal switch 40 is a switch (semiconductor switching element) that operates according to a timing signal specified by the switching control section 41.

The stereoscopic video signal generation circuit of the present embodiment generates a composite stereoscopic video signal in which the left-eye video 10 and the right-eye I-video 11 are synthesized for each horizontal line from the left-eye video 10 and the right-eye video 11 I do. That is, in the case of the interlaced system, an image is displayed every other scanning line, so that the signal switching unit 40 uses the signal switching unit 40 for each field (for example, NTSC type vertical synchronization timing of 16.6833.3 m). The video signal to be written to the composite frame memory 50 is changed every second). On the other hand, in the case of the non-interlace method, since the scanning lines are displayed in order, the left-eye image and the right-eye image are displayed every other scanning line. The video signal to be written to the composite frame memory 50 is switched at the horizontal synchronization timing of 63.55.555 μsec).

The timing at which the right-eye video data for writing to the composite frame memory 50 is read from the right-eye video frame memory 31 is controlled by the read timing control unit 32. The read timing control unit 32 receives the CP information 13, the timing signal of the signal switch 40 from the switching control unit 41, the screen size information, and the stereoscopic degree adjustment signal. The read timing control unit 32 calculates the timing of reading from the right-eye video frame memory 31 from the information, generates a clock for reading data from the right-eye video frame memory 31, and generates the right-eye video. By reading out later (or earlier) from the correct timing, proper Adjust the timing of giving the amount of parallax that gives a bodily sensation. That is, the timing of reading the right-eye signal from the right-eye video frame memory 31 is controlled with respect to the timing of reading the left-eye signal based on the CP information 13 and the screen size information, so that the stereoscopic effect is optimized. It is read out.

The switching control section 41 controls the signal switch 40, and outputs a horizontal synchronizing signal 71, a vertical synchronizing signal 72, a dot synchronizing signal 73 and a left / right signal input from the synchronizing signal generator 70. The operation of the signal switch 40 is controlled based on the reference signal 74. That is, as described above, the signal switch 40 is switched at what timing to set the timing of writing the video data to the composite frame memory 50 in order to generate a composite stereoscopic video signal.

The synchronizing signal generator 70 generates a horizontal synchronizing signal 71 and a vertical synchronizing signal 72 based on a video synchronizing signal 82 input from outside of the stereoscopic video signal generating circuit (for example, a display controller). Further, a dot synchronization signal 73 is generated based on a dot sampling link signal 83 input from the outside. Further, a left and right reference signal 74 is generated based on the video synchronization signal 82. When displaying and transmitting a stereoscopic video signal using a general video signal such as a video signal, the left and right reference signals 74 are used to identify whether the video signal is for a left video or a right video. This signal is input to the switching control unit 41 and output to the outside of the stereoscopic video signal generation circuit. ·

The DA converter 60 converts the digitized video signal into an analog signal and outputs it as a composite stereoscopic video signal.

In the above-described embodiment, the right 1 = 1 video data read timing is controlled based on the CP information 13 and the screen size information so that an appropriate stereoscopic effect can be obtained. Even in the case of infinity (there is no CP information 13), the parallax amount can be adjusted by controlling the read timing of the right eye video data according to the screen size information.

In addition, the stereoscopic video signal supplied to the above-described stereoscopic video signal generation circuit is captured by a stereoscopic video photographing apparatus having a pair of left and right cameras (lens and image element) while simultaneously recording the left and right images. The distance between the elements (interocular distance) and the distance to the intersection (cross point) between the optical axis of the left-eye video camera and the optical axis of the right-eye video camera are determined by It is recorded by a stereoscopic video photographing device having a function of recording as event information. That is, the three-dimensional image capturing apparatus records data relating to a three-dimensional effect together with a three-dimensional image.

Further, the stereoscopic video signal supplied to the above-described stereoscopic video signal generation circuit is converted into a left-right image together with the left-right video image using a stereoscopic video production device having a function of producing a pair of right and left images by computer graphic (CG). It is generated by a stereoscopic video production device equipped with a function that records the distance between the camera and the optical cross point of the left and right images (the point where the left and right eyes intersect) as cross point information. That is, the three-dimensional image production apparatus generates and records data relating to the three-dimensional effect together with the three-dimensional CG image. FIGS. 3 to 5 are diagrams illustrating the adjustment of the stereoscopic degree by changing the relative positions of the left and right images according to the embodiment of the present invention.

FIG. 3 shows a case where the right-eye image and the left-eye image are at the positions at the time of shooting.

The original stereoscopic image 300 is composed of a left-eye image 301 and a right-eye image 302. In this state, the position of the left-eye image 301 and the position of the right-eye image 302 are the same as those at the time of shooting, and the relative positions of the left and right images are correctly reproduced. Therefore, cross point 303 is located at the time of shooting (original cross point). Figure 4 shows a state where the right-eye image is displayed shifted to the right.

The stereoscopic image 310 is composed of a left-eye image 311 and a right-eye image 312. If the right-eye image read timing is delayed with respect to the left-eye image read timing (the right-eye signal phase is delayed), and an offset is set to shift the right-eye image to the right with respect to the left-eye image, and displayed. The line of sight looking at the left-eye image with the left eye and the line of sight looking at the right-eye image with the right eye intersect on the far side of the display screen, and the cross point 3 13 moves farther than the shooting position. Therefore, the degree of projection is weaker than in the original stereoscopic image, the sense of depth is emphasized, and the image is farther away from the whole.

Figure 5 shows a state where the right-eye image is displayed shifted to the left.

The stereoscopic image 320 is composed of a left-eye image 3221 and a right-eye image 3222. When the right-eye image is read earlier than the left-eye image is read (the phase of the right-eye signal is advanced), the right-eye image is shifted to the left with respect to the left-eye image. And the right eye with the right eye The line of sight intersects the line of sight of the image on the near side of the display screen, and the cross point 3 2 3 is closer to the position at the time of shooting. Therefore, the degree of protrusion is emphasized, the sense of depth is reduced, and the image is closer to the front than the original stereoscopic image.

When an offset is set to display the left-eye image and the right-eye image, one of the left and right ends of the left- and right-eye images is missing. It is good to enlarge and display. At this time, the image is enlarged and displayed in the vertical direction based on the aspect ratio of the display screen (aspect ratio). Specifically, in the offset state shown in 4, the left end of the right-eye image is lacking, but the left-end image of the right-eye image is extended to the left end of the display screen to display the right-eye image. In the offset state shown in Fig. 5, the right end of the right eye image is missing, but the right end image of the right eye image is extended to the right end of the display screen to display the right eye image. By extending the sides of these offset images and extending the side images vertically in the aspect ratio of the display screen to enlarge and display the images, the offset from the display screen can be obtained. A natural three-dimensional image can be displayed without causing a region in which no image is displayed (a region displayed in black) due to lack of the reproduced image.

Next, the calculation of the offset amount of the left and right eye images will be described.

FIG. 6 shows the relationship between the amount of parallax of the original stereoscopic video and the appearance position of the stereoscopic image. In the original stereoscopic image 300, the right-eye image and the left-eye image are in a positional relationship at the time of shooting as shown in FIG. At this time, the appearance position of the stereoscopic image (the distance between the position where the stereoscopic image can be viewed and the observer) is displayed on the display screen as Ld, the viewing distance (the distance between the observer and the display screen) as Ls. Assuming that the amount of parallax between the left-eye image and the right-eye image to be performed is X1 and the interocular distance is de (approximately 65 mm), the above parameters are expressed by equation (1) shown in FIG. Then, the stereoscopic image appearance position L d can be obtained as a function of the amount of parallax XI by solving this equation. Here, XI changes depending on the size of the display screen (in proportion to the display screen size).

Fig. 7 shows the relationship between the amount of parallax of the left and right eye images and the stereoscopic image appearance position when an offset is given to the left and right eye images. At this time, the appearance position of the stereoscopic image (the distance between the position where the stereoscopic image can be seen and the observer) is L d, the viewing distance (the distance between the observer and the display screen) is L s, and the offset of the left and right eye images is X o, the left eye image and the right eye image displayed on the display screen Assuming that the amount of parallax between is XI and the interocular distance is de (approximately 65 mm), the above parameters are expressed by equation (2) shown in Fig. 7. Then, in order to obtain the same stereoscopic image appearance position L d as that of the original video, L d obtained by equation (1) shown in FIG. 6 is substituted into equation (2). Then, the offset Xo of the left and right eye images is obtained.

8 to 12 are configuration diagrams showing the stereoscopic video display device of the present embodiment. The display means 122 is composed of a display device using liquid crystal, and as shown in FIGS. 8 and 9, a right-eye polarization filter section 6 a whose polarization direction is orthogonal to the left and right of the light emitting surface of the flat light source 5. And a left-eye polarization filter section 6b. It should be noted that, without using a light emitting element and a polarizing filter, it is sufficient to irradiate light of different polarizations from different positions.For example, two light emitting elements that generate light of different polarizations are provided and different polarizations are provided. The light may be applied to the Fresnel lens 3 from different positions.

In the present embodiment, reference numeral 3 denotes a Fresnel lens, and each light that has passed through each of the filter portions 6a and 6b is irradiated on the liquid crystal display element 2 as parallel light by the Fresnel lens 3. In the present embodiment, the display panel 2a of the liquid crystal display element 2 displays the pixels (L, R) constituting the first and second images viewed stereoscopically as shown in FIG. They are arranged so as to form a checkered pattern that is arranged alternately. Polarizing panels 2b and 2c are attached to both sides of the display panel on the light source side and on the observer side, respectively.

In the present embodiment, the liquid crystal display panel 2 has a liquid crystal that is oriented by being twisted at a predetermined angle (for example, 90 degrees) between two transparent plates (for example, a glass plate). For example, it constitutes a TFT type liquid crystal display panel. The light incident on the liquid crystal display panel is emitted with the polarization of the incident light shifted by 90 degrees when no voltage is applied to the liquid crystal. On the other hand, when a voltage is applied to the liquid crystal, the liquid crystal is untwisted, and the incident light is emitted with the same polarization.

In the present embodiment, a checkered filter 7 is attached to the light source side of the display panel 2.

That is, the light transmitted through the polarizing filter 6 is applied to the Fresnel lens 3, and the Fresnel lens 3 makes the optical paths of the light radiated so as to be diffused from the light source 5 become almost parallel, and The light is transmitted to the liquid crystal display panel 2 through the filter.

At this time, the light emitted from the checkered filter 7 is emitted so as not to spread in the vertical direction, and is emitted to the liquid crystal display panel 2. That is, light transmitted through a specific area of the checkered filter 7 is transmitted through a specific display unit of the liquid crystal display panel 2.

Also, of the light applied to the liquid crystal display panel, the light that has passed through the right polarizing filter part a and the light that has passed through the left polarizing filter part b of the polarizing filter 6 enter the Fresnel lens 3 at different angles, The light is refracted by the Fresnel lens 3 and is radiated from the liquid crystal display panel 2 through different paths.

The checkerboard filter 7 has regions in which the phase of transmitted light is changed repeatedly arranged in a checkerboard pattern at fine intervals as shown in FIG. 9 (1). Specifically, as shown in FIG. 11 (2), a region 7a in which a 1 / 2-wavelength plate 172 having a fine width is provided on a light-transmitting substrate 171, and 1/2 A row in which the half-wave plate 172 is not provided with the region 7b where the half-wave plate 172 is not provided at the same fine interval as the width of the wave plate 17 ing. The half-wave plate may be provided on the light source side or on the display panel side.

With such a configuration, the region 7a that changes the phase of light transmitted by the provided 1/2 wavelength plate 172 and the light transmitted by the absence of the 1/2 wavelength plate 172 are provided. The region 7 b where the phase is not changed is regularly provided as a checkered pattern with a fine interval. The half-wave plate functions as a phase difference plate that changes the phase of transmitted light. The 1 Z 2 wavelength plate 1 72 has its optic axis inclined by 45 degrees with respect to the polarization axis of the light passing through the right polarizing filter section a of the polarizing filter 6, and has passed through the right polarizing filter section a. The light is emitted by rotating the polarization axis of the light by 90 degrees. That is, the polarization axis of the light transmitted through the right polarization filter unit a is rotated by 90 degrees to be equal to the polarization of the light transmitted through the left polarization filter unit b. The region 7b where the half-wavelength plate 72 is not provided transmits light having the same polarization as that of the polarizing plate 2b that has passed through the left polarizing filter portion b. Further, the region 7a where the half-wavelength plate 72 is provided becomes equal to the polarization axis of the polarizing plate 2b when the light whose polarization axis is orthogonal to that of the polarizing plate 21 that has passed through the right-side polarization filter portion a. And emit light. The repetition of the polarization characteristic of the 巿 -pine filter 7 is transmitted at the same pitch as the display unit of the liquid crystal display panel 2 for each display unit (ie, the horizontal horizontal line and the vertical vertical line of the display unit). The polarization of the light to be emitted is different. As a result, the polarization characteristics of the fine retardation plate corresponding to each display unit in the scanning direction and the sub-scanning direction of the liquid crystal display panel 2 become different, and the direction of light emitted from each adjacent pixel is different. In the present invention, the repetition of the polarization characteristic of the checkered filter 7 is performed by setting the polarization characteristic of the checkered filter 7 to a plurality of display units (ie, a pitch that is an integral multiple of the pitch of the display unit of the liquid crystal display panel 2). (For each of a plurality of display units). As described above, it is necessary to irradiate the display element of the liquid crystal display panel 2 with different light every time the polarization characteristic of the fine retardation plate is repeated. Must be one that suppresses vertical diffusion. That is, the area 7a of the checkered filter 7, which changes the phase of light, transmits the light transmitted through the right-side polarization filter section a of the polarization filter 6 while making it equal to the polarization of the light transmitted through the left-side polarization filter section b. I do. The region 7 b of the checkered filter 7 in which the phase of the light is not changed transmits the light transmitted through the left-side polarization filter part b of the polarization filter 6 as it is. Then, the light emitted from the checkered filter 7 has the same polarization as the light transmitted through the left polarizing filter part b, and enters the polarizing plate 2 b provided on the light source side of the liquid crystal display panel 2.

The polarizing plate 2b functions as a second polarizing plate, and has a polarization characteristic of transmitting the same polarized light as the light transmitted through the pine filter 7. That is, the light transmitted through the left polarizing filter portion b of the polarizing filter 6 transmits through the second polarizing plate 2c, and the light transmitted through the right polarizing filter portion a of the polarizing filter 6 has its polarization axis rotated 90 degrees. Through the second polarizing plate 2b. Further, the polarizing plate 2c functions as a first polarizing plate, and has a polarization characteristic of transmitting light having a polarization 90 degrees different from that of the polarizing plate 21.

An image display device is configured by combining such a checkered filter 7, a checkered filter 7, a polarizing plate 2b, a liquid crystal panel 2a, and a polarizing plate 2c.

Therefore, according to the stereoscopic image display device 1 according to the present embodiment, the left and right images are displayed so as to form a checkerboard pattern in a plane, and the filters are also arranged on the plane in a checkerboard pattern. Display 3D images without reducing the horizontal and vertical resolutions Monkey

As described above, the stereoscopic video signal generation circuit 101 generates a synthetic stereoscopic video signal from the input stereoscopic video signal, and outputs the generated synthetic stereoscopic video signal via the driving circuit 102 to display means. Supply 1 2 1 Display size information relating to the size of the displayable area of the display element provided in the display means 121 is output from the display means 122.

This screen size information is set for each display means, and is information on the number of dots in the vertical and horizontal directions and the size of the display area stored in a storage unit (memory) provided in the display means. Further, the display means 122 outputs viewing distance information relating to the distance at which the observer views the image displayed on the display means 122. This viewing distance information may be determined according to the size of the display area, or an observer position detecting means 122 for detecting an observer is provided on the display means 122, and observation is performed on the display means 122. The positional relationship between the user 90 and the display means 122 is measured to obtain positional information.

The screen size information and viewing distance position information output from the display means 121 are input to the display information acquisition means 104 and converted into data in a format required by the stereoscopic video signal generation circuit 101. Then, it is supplied to the stereoscopic video signal generation circuit 101.

The video information acquisition means 103 is adapted from the stereoscopic video signal input to the display control circuit 100, to suitable screen size information relating to a screen size suitable for reproduction of the stereoscopic video, suitable for an observer to see during reproduction. Compatible viewing distance information on the distance to the display screen, camera distance information on the distance between the optical axis of the left-eye video camera and the optical axis of the right-eye video camera, and the optical axis of the left-eye video camera and the right-eye video The cross-point information on the distance to the intersection with the optical axis of the camera is extracted and converted into data in the format required by the stereoscopic video signal generation circuit 101, and this information is converted into a stereoscopic video signal generation circuit. Feed to 101.

In addition, the stereoscopic video signal generation circuit 101 receives a stereoscopic degree adjustment signal from the input unit 105, and according to the stereoscopicity instructed by the viewer to the input unit 105, the left and right eye images are formed. The image is offset and displayed, and the stereoscopic degree of the stereoscopic image displayed on the display means 121 can be changed.

The manual input unit 105 is a switch operated by a viewer, a variable resistor, or the like. It is operated according to the observer's preference and changes the operating conditions of the display control circuit. The above-mentioned screen size switching signal is output, and the screen size switching signal is supplied to the display information acquiring means 104. Also, the stereoscopic degree adjustment signal described above is output, and the stereoscopic degree adjustment signal is supplied to the stereoscopic video signal generation circuit 101 to adjust the amount of parallax for obtaining a stereoscopic effect according to the preference of the observer.

The left-eye video reaching the viewer's left eye and the right-eye video reaching the right eye are alternately displayed in a checkerboard pattern on the display means 122. Then, the stereoscopic video signal generation circuit 101 controls to delay or advance the timing of reading the right-eye video from the right-eye frame memory 31 to delay or advance the horizontal phase of the left-eye video and the right-eye video, and Adjust the binocular disparity by setting the amount of offset (offset) between the image and the right-eye image to adjust the stereoscopic effect.

Hereinafter, a case where the position of the observer changes will be described.

First, as shown in FIG. 10, position information is detected by the observer position detecting means 122. Next, this information is obtained by the display information obtaining means 104, the offset amount is calculated by the offset means setting means 105, and is correlated with the observer's distance and left and right positions, so that it can be seen normally. As described above, the display means 102 is driven by the drive circuit 102.

FIGS. 13 and 14 show another embodiment of the present invention, in which the light source 5 of the liquid crystal display device is changed. In the example shown in Fig. 13, a plurality of white LEDs 201 are arranged side by side in a horizontal direction, and two rows of LED arrays 2 3 1L and 2 3 1R serving as left and right light sources and image display means (liquid crystal display) Plate) 2 32 and a Fresnel lens 2 14 acting as a convex lens and two polarizing elements 2 6 6 which form polarization directions perpendicular to each other and correspond to the LED arrays 2 3 1 L and 2 3 1 R.

The LED array 211 is controlled to be turned on and off by LED control means 2.13 provided in the display control circuit 100. In FIG. 11, the LED that emits light is represented by “up”, and the LED that does not emit light is represented by “〇”.

In the present embodiment, the displacement d1 of the image display device (light source device 230 for the image display device) of the observer 90 from the optical axis O and the distance d2 from the image display means 232 are measured. An observer position judging means 2 3 4 for emitting a measurement signal is provided. In this embodiment, the observer position determination means 2 3 4 may use an ultrasonic method, an infrared method, or any other means. it can.

The LED control means 233 controls the lighting locations 235, 236 of the white LED 1 of the LED array 231 based on the above-mentioned measurement signal, and the LED array 233. The light emission position of 1 can be quickly moved (shown by arrow D) to a position corresponding to the movement of the observer 90 (shown by arrow d), and a natural stereoscopic image is always provided to the observer 90. Can be displayed.

At this time, since the control of the light source device for the image display device does not involve any mechanical operation, it can be made high-speed, high-precision, and highly durable. It can be simple.

The number of observers and the position of each observer with respect to the image display device are measured by the position judging means 34 and output as a position signal, and the LED array 23 1 is turned on by the LED control means 23 3 If controlled, an appropriate stereoscopic image can be displayed to observers at a plurality of different positions.

In the example shown in FIG. 14, the LED array 351 of the light source 5 is configured in two stages of an upper stage 351U and a lower stage 351D. In the present embodiment, the left and right portions corresponding to the upper portion 35 1 U and the lower portion 35 1 D are located at positions corresponding to the white LEDs 301 of the upper portion 35 1 U and the lower portion 35 1 D, respectively. The polarizing filters 3 5 4 are arranged. This polarizing filter includes polarizing filters 354U and 354D through which light from the upper section 351U and the lower section 351D of the LED array 351 passes. Further, the polarization filters 354U and 354D are composed of polarization filters whose polarization directions are orthogonal to each other.

The LED control means 353 controls the blinking of each LED array 351U and 351D.

First, the case where the observer 90 is a human will be described.

The position of the observer 90 is determined by the above-described observer position detecting means 122, and the upper and lower LED arrays 354U and 354D emit light at the light-emitting portions 373, and the observer 90 receives a three-dimensional image. Display an image. At this time, the light emitting point is moved using the observer position detecting means 122 shown in the above embodiment so that a stereoscopic image corresponding to the position of the observer 90 can be displayed. Next, we explain the case where there are multiple observers, for example, two observers 90, 91. I do. At this time, the LED control means 3 53 3 obtains a signal from the observer position detecting means 1 2 2 and sets two light emitting areas 3 7 3 and 3 7 4 on the two LED arrays 35 1. The lighting control of these light emitting regions is alternately performed at high speed.

Therefore, at this time, the LED 1 other than the light emitting regions 37 3 and 37 4 does not emit light, and at some point, one of the light emitting regions 37 3 and 37 4 emits light.

In this way, by controlling the synchronization signal and the blanking period of the image display means 52 by the blinking control of turning off the white LE 1, unnecessary afterimages and interference can be removed, and the power consumption can be reduced. In addition to this, it is possible to obtain an image with a wide viewing angle with a limited light source by using a small number of EDs in a flat image display device and using a Fresnel lens.

According to the present embodiment, since the left and right LEDs are separated and arranged vertically, the distance between the LEDs for displaying the left and right is increased, and the interference of light from each LED is reduced. Reduced crosstalk between left and right images.

The above-described three-dimensional image display device is applicable to various three-dimensional display devices such as a mobile phone, a three-dimensional television receiver, and a three-dimensional projector. Further, the present invention can be applied to a three-dimensional movie theater, a moving image reproducing device for reproducing three-dimensional images distributed via the Internet, a standing game machine, and a simulator for an airplane or a vehicle.

Industrial applicability

As described above, according to the stereoscopic video display device of the present invention, the following excellent effects can be obtained.

According to the invention described in claim 1, there is provided a stereoscopic video display device for displaying different video images to the left and right eyes of an observer and displaying a stereoscopically visible video image, wherein the stereoscopic video image includes a left-eye video image and a right-eye video image A stereoscopic video signal generating circuit that generates a signal; a display unit that displays a stereoscopic video; and a driving circuit that drives the display unit. The stereoscopic video signal generating circuit includes: And information acquisition means for acquiring display device information relating to a display area of the display means; and offset for displaying the left-eye image and the right-eye image shifted based on the video information and the display device information. Offset setting means for setting a value to display on the display means a stereoscopic image signal which gives the same stereoscopic effect to the observer with respect to video information and display information under different conditions; Since the driving circuit displays a three-dimensional image on the display means based on the three-dimensional image signal output from the three-dimensional image signal generation circuit, the driving circuit is optimal for a three-dimensional image display device. It is possible to obtain a stereoscopic image with an adjusted stereoscopic degree (depth amount).

According to the invention set forth in claim 2, observer position detecting means for acquiring observation position information relating to a positional relationship between a display screen and an observer, and information relating to a display screen size as information relating to a display area of the display means. A storage unit for storing display screen size information and the observation position information, wherein the information acquisition unit acquires the display screen size information and the observation position information from the storage unit. In addition, it is possible to obtain a stereoscopic image with the optimal stereoscopic degree (depth) adjusted to the screen size of the display.

According to the third aspect of the present invention, since the observer position detecting means is disposed integrally with the main body of the stereoscopic video display device, the observer position detecting means is separately installed in addition to the main body of the stereoscopic video display device. No need to do.

According to the invention set forth in claim 4, the observer position detecting means can be arranged at an appropriate position for detecting the position of the observer, and the position of the observer can be accurately detected.

According to the invention set forth in claim 5, the ultrasonic wave is used for the observer position detecting means, and is less susceptible to the influence of ambient noise and the like as compared to the detection of the observer by other means. Accurate detection can be performed.

According to the invention as set forth in claim 6, the information acquisition means includes: adaptive screen size information relating to a screen size suitable for reproducing the stereoscopic video defined in association with the stereoscopic video; and Acquiring suitable position information on a position up to a suitable display screen as the image information, acquiring display screen size information on a surface size of the stereoscopic image display device, and observation position information as the display device information; The offset setting means is configured to set an offset between a left-eye image and a right-eye image based on the optimum screen size information, the adaptive viewing distance information, the display screen size information, and the observation position information, and display the image. The stereoscopic effect of the 3D image display device is adjusted according to the information on the 3D image playback defined in association with the 3D image. Even if the image changes or the viewing distance of the observer changes, a stereoscopic image adjusted to the optimal stereoscopic degree (depth amount) corresponding to these changes can be obtained.

According to the invention set forth in claim 7, the information acquisition means is a camera distance that is determined in relation to the stereoscopic image and that is related to the distance between the optical axis of the left-eye video camera and the optical axis of the right-eye video camera. Information, and cross-point information about the distance to the intersection of the optical axis of the left-eye video camera and the optical axis of the right-eye video camera is obtained as the video information, and the offset setting means includes the camera distance information and the The offset of the left-eye image and the right-eye image is set based on the cross-point information, and the stereoscopic effect of the image displayed on the display means is adjusted. Thus, it is possible to obtain a stereoscopic image in which the optimal stereoscopic degree (depth amount) corresponding to the screen size is adjusted.

According to the invention as set forth in claim 8, further comprising: input means for allowing a viewer to input information relating to a three-dimensional effect, the offset setting means includes a left-eye image and a right-eye image based on the information input to the input means. By setting the offset with respect to the stereoscopic effect of the image displayed on the display means, it is possible to obtain a stereoscopic image in which the stereoscopic degree (depth amount) is adjusted according to the preference of the observer.

According to the invention as set forth in claim 9, there is provided a left-eye video frame memory for storing a left-eye video, and a right-eye video frame memory for storing the right-eye video. Timing control means for controlling the timing of reading video data from the video frame memory and / or the right-eye video frame memory, wherein the timing control means is provided from one of the left-eye video frame memory and the right-eye video frame memory The offset between the left-eye image and the right-eye image is set by making the timing of reading the video data earlier or later than the timing of reading the video data from the other frame memory. Video offset can be set.

According to the invention described in claim 10, a stereoscopic video frame memory for storing a stereoscopic video, left-eye video data read from the left-eye video frame memory, and read from the right-eye video frame memory Signal switching means for switching between the right-eye video data and the 3D video frame memory. It is possible to compose a video with an image offset set and store it in the frame memory.

According to the invention described in claim 11, the offset between the left-eye image and the right-eye image is set by advancing or delaying the horizontal phase between the left-eye image and the right-eye image, so that the left-right image The offset setting can be easily controlled. According to the invention as set forth in claim 12, when an offset between the left-eye image and the right-eye image is set, an area where information is missing at the left and right edges of the left-eye image and the right-eye image is set to One or both of the left-eye image and the right-eye image in the vicinity of the missing area are enlarged and displayed in the horizontal and vertical directions. Can be.

According to the invention described in claim 13, the display means includes an image display means for displaying an image by transmitted light and a light source device, and the light source device is an LED in which white LEDs or RGB LEDs are integrally arranged. The offset setting means is provided with an LED control means for controlling the white LED or the RGB LED of this LED array based on the offset, so that the free light source can be controlled by the LED control means. Lighting can be performed, and power consumption can be reduced.

According to the invention set forth in claim 14, the LED control means of the offset setting means controls the lighting of the white LED or the RGB LED based on the observer position information so as to maintain the observer's observation image. Therefore, even if the observer moves, and even if the observer is at a plurality of different positions, an appropriate image can be displayed.

According to the invention as set forth in claim 15, since each LED array provided above and below the light source device forms a right-eye image display portion and a left-eye image display portion, the right-eye LED array By controlling the light emission of the image display unit and the left-eye image display unit by the LED control means, the display control of the stereoscopic image can be performed with a high degree of freedom.

Claims

The scope of the claims

1. A stereoscopic image display device for displaying different images to the left and right eyes of an observer to display a stereoscopically visible image,

A stereoscopic video signal generating circuit for generating a stereoscopic video signal composed of a left-eye video and a right-eye video, display means for displaying a stereoscopic video, and a driving circuit for driving the display means, wherein the stereoscopic video signal generating circuit comprises:

A video information acquisition unit that acquires video information about the stereoscopically visible video; and a display information acquisition unit that acquires display device information about a display area of the display unit. An offset value for displaying the left-eye image and the right-eye image shifted from each other is set, and a stereoscopic image signal that gives the same stereoscopic effect to an observer for image information and display information under different conditions is provided to the display means. And offset setting means for displaying.

The stereoscopic video display device, wherein the driving circuit displays a stereoscopic video on the display unit based on a stereoscopic video signal output from the stereoscopic video signal generation circuit.

2. An observer position detecting means for acquiring observation position information on a positional relationship between the display screen and the observer is provided.

2. The stereoscopic image display device according to claim 1, wherein the display information acquisition unit acquires display screen size information on a display screen size and the observation position information as information on a display area of the display unit.

3. The three-dimensional image display device according to claim 2, wherein the observer position detection means is integrally disposed on a three-dimensional image display device main body.

4. The stereoscopic video display device according to claim 2, wherein the observer position detecting means is arranged at a position separated from the stereoscopic video display device main body.

5. The stereoscopic image display device according to claim 3, wherein the observer position detecting means includes an ultrasonic transmitter and an ultrasonic receiver.

6. The information acquiring means is:

Applicable screen size information relating to a screen size suitable for reproduction of the stereoscopic video defined in relation to the stereoscopic video, and conformance position information relating to a position up to a display screen suitable for an observer at the time of reproduction as the video information. Acquired, Display screen size information regarding the screen size of the stereoscopic video display device,

And obtain observation position information as the display device information,

The offset setting means sets an offset between a left-eye image and a right-eye image based on the optimum screen size information, the adaptive viewing distance information, the display screen size information, and the observation position information, and displays an image to be displayed. A stereoscopic video display device comprising the stereoscopic video signal generating circuit according to any one of claims 1 to 5, wherein the stereoscopic effect is adjusted.

7. The information obtaining means includes: camera distance information regarding a distance between the optical axis of the left-eye video camera and the optical axis of the right-eye video camera, which is defined in association with the stereoscopic video; Acquiring cross-point information relating to the distance between the axis and the optical axis of the right-eye video camera as the video information,

The offset setting means sets an offset between a left-eye image and a right-eye image based on the camera distance information and the cross-point information, and adjusts a three-dimensional effect of an image displayed on the display means. The stereoscopic image display device according to any one of claims 1 to 5, wherein

8. Equipped with an input means for the viewer to input information about the three-dimensional effect,

The offset setting unit sets an offset between a left-eye image and a right-eye image based on information input to the input unit, and adjusts a three-dimensional effect of an image displayed on the display unit. The stereoscopic video display device according to any one of claims 1 to 7, wherein:

9. A left-eye video frame memory for storing the left-eye video, and a right-eye video frame memory for storing the right-eye video,

The offset setting means includes timing control means for controlling timing of reading video data from the left-eye video frame memory and / or the right-eye video frame memory,

The timing control means may advance or delay the timing of reading video data from one of the left-eye video frame memory and the right-eye video frame memory as compared to the timing of reading video data from the other frame memory. Setting an offset between the left-eye image and the right-eye image. The stereoscopic video display device according to any one of claims 1 to 8.

1 0. A 3D image frame memory for storing 3D images,

Signal switching means for switching between left-eye video data read from the left-eye video frame memory and right-eye video data read from the right-eye video frame memory and inputting the data to the stereoscopic video frame memory. The stereoscopic video display device according to any one of claims 1 to 9, characterized in that:

1 1. An offset between the left-eye image and the right-eye image is set by advancing or delaying a horizontal phase between the left-eye image and the right-eye image. 10. The stereoscopic video display device according to any one of 10.

1 2. When an offset between the left-eye image and the right-eye image is set, the left-eye image near the missing area is located in an area where information is missing at the left and right edges of the left-eye image and the right-eye image. The stereoscopic image display device according to any one of claims 1 to 11, wherein one or both of the right-eye image and the right-eye image are enlarged and displayed in horizontal and vertical directions.

1 3. The display means comprises: an image display means for displaying an image with transmitted light; and a light source device.

The light source device is composed of an LED array in which white LEDs or RGB LEDs are integrated.

The offset 1, the setting means includes an LED control means for controlling lighting of a white LED or RGB LED of the LED array based on the offset. The stereoscopic video display device according to any one of the above.

1 4.The LED control means of the offset setting means controls lighting of the white LED or RGB LED based on the observer position information so as to maintain an image observed by the observer. 14. The light source device for an image display device according to claim 13.

15. The stereoscopic image display device according to claim 13, wherein each of the LED arrays provided above and below the light source device forms a right-eye image display unit and a left-eye image display unit. .