JP2001352564A - Device and method for controlling display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an operator from closely observing hard-to-see images by inhibiting the change of images corresponding to the operation of the operator during a switching operation in the case that a mechanical operation accompanies at the time of switching 2D image display and 3D image display. SOLUTION: At the time of controlling an image display device capable of at least switching two-dimensional display and three-dimensional display, changeover to the three-dimensional display is performed in the case of shifting from a state where three-dimensional images are not present to the state where they are present by the generation of a mouse event and the changeover to the two-dimensional display is performed in the case of shifting from the state where the three-dimensional images are present to the state where they are not present by the event. In this case, while it is detected that the image display device is under the switching operation to the two-dimensional display or the three-dimensional display, display corresponding to the event in the image display device is inhibited and a display operation is limited.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a display control device and a display control method for a display device that allows a user to observe a stereoscopic image by using a parallax between a right eye and a left eye. In particular, the present invention relates to a display control device and a display control method for a display device capable of switching between a normal two-dimensional image and a three-dimensional image for display, or capable of displaying a mixture of a two-dimensional image and a three-dimensional image.

[0002]

2. Description of the Related Art Conventionally, a three-dimensional display device capable of switching between two-dimensional display and three-dimensional display and performing mixed display has been proposed. As a method of performing stereoscopic display on a display, a stereoscopic image display method using a parallax barrier (hereinafter, referred to as a parallax barrier method) and a lenticular method are widely known.

The parallax barrier method is described in
H. Kaplan, “Theory of Parallax Barriers”, J. SMPTE, Vo
l.59, No. 7, pp. 11-21 (1952), according to this method, among a plurality of parallax images from a plurality of viewpoints, at least left and right parallax images are alternately arranged A striped image is formed by a parallax image corresponding to each of the left and right eyes via a slit (referred to as a parallax barrier) having a predetermined opening provided at a predetermined distance from the image. By observing, stereoscopic vision can be performed.

On the other hand, the lenticular system also displays a stereoscopic image using binocular parallax between the right eye and the left eye. A lenticular having a large number of semi-cylindrical lenses is provided on the front of the display, and the left and right are spatially separated. It separates the image entering the eye and allows the user to observe a stereoscopic image.

FIG. 9 is a diagram for explaining the principle of a cross lenticular system for three-dimensional display by binocular parallax, similar to a lenticular system or a parallax barrier system disclosed in Japanese Patent Application Laid-Open No. 10-074267. Reference numeral 1 denotes a liquid crystal display device for displaying images, and reference numeral 201 denotes a display pixel portion including a liquid crystal layer and the like, which is formed between the glass substrates 205. In the drawing, a polarizing plate, a color filter, an electrode, a black matrix, an antireflection film, and the like are not shown. Reference numeral 3 denotes a backlight serving as an illumination light source. A mask pattern 2 having a checkered opening 208 through which light passes is provided in front thereof.
09 is formed. The mask pattern 209 is made of a metal vapor-deposited film such as chromium or a light absorbing material, and is manufactured by patterning on a mask substrate 207 made of glass or resin. Between the mask substrate 207 and the liquid crystal display device 1 for image display, two mutually perpendicular lenticulars 203 and 204 made of transparent resin or glass are arranged as microlenses. In the image display liquid crystal display device 1, left and right parallax images are alternately arranged in the vertical direction and displayed in the form of horizontal stripes as shown in the figure (206R is an image for the right eye, 206L is an image for the left eye). I have. The light from the backlight 3 is the mask substrate 2
07 through the opening 208, the lenticular 203
The liquid crystal display device for image 1 is illuminated through and 204, and the left and right parallax images are separately observed by both eyes of the user.

[0006] This type of display has a normal 2D display.
When an image is displayed, the 2D image looks unnatural due to its structure. For this reason, when displaying a 2D image, it is conceivable to eliminate the unnaturalness by displaying the same image for the left-eye image and the right-eye image, but this causes a reduction in resolution.

On the other hand, in 2D display, it is conceivable to add a structure for separating and observing as left and right parallax images. For example, in Japanese Patent Application Laid-Open No. 10-074267, the lens power is turned off by moving the lenticular lenses 203 and 204 in the depth direction so that there is no light directivity for allowing the left and right parallax images to be observed by the left and right eyes respectively. Thus, natural 2D images can be observed.
Japanese Patent Application Laid-Open No. 9-304739 discloses a configuration in which a diffusion sheet for removing light directivity can be inserted and removed between the liquid crystal display device 1 for displaying an image and the lenticular lens 204. FIG. 10 shows an example of the diffusion sheet. However, light passing through the transparent region 40A of the diffusion sheet 200 does not lose light directivity, and light passing through the diffusion region 40B loses light directivity. According to this configuration, in the case of a 2D image, the separation of the image to the left and right eyes is prevented by interposing the diffusion portion region 40B of the diffusion sheet 200, enabling natural 2D image observation and 3D image In this case, it is possible to observe a 3D image in a state where the diffusion region 40B of the diffusion sheet 200 is removed (a state where the transparent region 40A is interposed).

Further, Japanese Patent Application Laid-Open No. 9-304739 discloses a configuration that enables the mixed display of 2D and 3D images using the diffusion sheet 200. That is, by partially providing a transparent area in the diffusion area of the diffusion sheet 200 (40C to 40F in FIG. 10), it is possible to display a mixture of 2D images and 3D images on the same display surface.

[0009]

However, when switching between 2D image display and 3D image display involves mechanical operations such as movement of the lenticular lens and movement of the diffusion sheet as described above, the switching takes some time. Is required. During such a switching operation, the appearance of both the 2D image and the 3D image becomes unstable. Therefore, if an image is displayed according to the operation of the operator during such a switching operation, the operator may feel uncomfortable. In other words, the display of the image according to the operation is watched by the operator because the display content indicates the result of the operation of the operator, so that the 2D display as described above is performed.
If such a display is performed during the 3D switching operation, the operator will look at the display that is difficult to see, and the operator will feel uncomfortable.

Japanese Patent Application Laid-Open No. 9-304739 discloses that a 3D image display apparatus using a diffusion sheet is provided with a transparent area by partially providing a transparent area in the diffusion sheet.
It is disclosed to realize mixed display of D images. However, the 3D image area and the 2D image area are determined by the transparent area provided in advance on the diffusion sheet, and if it is desired to change the combination pattern of the 3D image area and the 2D image area, the number of areas is determined by the number of the patterns. It must be prepared. For example, the diffusion sheet 2 of FIG.
In 00, four types of mixed patterns 40C to 40F are prepared. In this case, a sheet having a size of four screens is required. Therefore, for example, when trying to switch from the state of 40A (all three-dimensional display) to the state of 40F (mixed display), it is necessary to move the diffusion sheet 200 by five screens, and it takes time to switch. .

Further, when switching between 2D and 3D or performing mixed display using a diffusion sheet, the amount of light in a 2D image observed through the diffusion sheet is lower than that in a 3D image.

The present invention has been made in view of the above problems, and has as its object to display 2D images and 3D images.
In a case where switching of image display involves a mechanical operation, a change in an image according to an operation of an operator is prohibited during the switching operation, and an operator is prevented from staring at an image that is difficult to see.

Another object of the present invention is to improve the flexibility of the display mode of switching between 2D and 3D images and displaying mixed images by using a diffusion sheet.

Still another object of the present invention is to reduce the relative light amount difference between 2D display and 3D display that occurs when switching between 2D display and 3D display using a diffusion sheet and performing mixed display. It is in.

[0015]

A display control device according to the present invention for achieving the above object is a display control device for controlling at least a display device capable of switching between two-dimensional display and three-dimensional display, Instructing means for outputting a control command to the display device for switching to two-dimensional display or three-dimensional display, and switching the display device to two-dimensional display or three-dimensional display by a control command from the instructing device A detection unit that detects that the operation is being performed; and a display restriction unit that restricts a display operation on the display device at least while the switching operation is being detected by the detection unit.

A display control apparatus according to another aspect of the present invention that achieves the above object is capable of observing a three-dimensional image by generating light directivity for observing a parallax image with right and left eyes. And a display controller that controls a display device that allows a two-dimensional image to be observed by canceling the light directivity by a light diffusing member, and detects a position indicated by a pointing device on a display screen. Detecting means, position controlling means for controlling the position of the light diffusing member based on the position detected by the detecting means, and positioning of the light diffusing member by the position controlling means; Display control means for controlling image display by setting a region where the diffusion member is present as a two-dimensional display region and a region where the light diffusion member is not present as a three-dimensional display region. That.

[0017]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

<First Embodiment> FIG. 1 is a diagram showing a schematic configuration of an image display device according to a first embodiment. In FIG. 1, reference numeral 1 denotes a liquid crystal display device for displaying an image, in which a display pixel portion 1a composed of a liquid crystal layer or the like is formed between glass substrates 1b and 1c. In the drawing, a polarizing plate, a color filter, an electrode, a black matrix, an antireflection film, and the like are not shown. Reference numeral 3 denotes a backlight serving as an illumination light source. A mask substrate 2 on which a mask pattern having a checkerboard-like opening (a portion shown in white in the figure) through which light passes is formed in front of the mask substrate 2. The mask pattern on the mask substrate 2 is made of a metal deposited film of chromium or the like or a light absorbing material, and is manufactured by patterning on the mask substrate 2 made of glass or resin.

Between the mask substrate 2 and the liquid crystal display device 1 for image display, two lenticulars 4 and 5 made of transparent resin or glass, which are perpendicular to each other, are arranged as microlenses. As shown in the drawing, the left and right parallax images are alternately arranged in a vertical stripe pattern on the image display liquid crystal display device 1 (in the liquid crystal display device 1, the horizontal stripes denoted by R are displayed). The image for the right eye, the horizontal stripe indicated by L is the image for the left eye). Backlight 3
Is transmitted through each opening of the mask substrate 2 and provided with directivity so that the left and right parallax images are separately observed by the user's eyes through the lenticulars 4 and 5. 1 is illuminated and stereoscopic vision is obtained.

Reference numeral 6 denotes a diffusion sheet of a light diffusion member, which is disposed between the lenticular lens 5 and the liquid crystal display 1.
FIG. 2 is a diagram illustrating a diffusion sheet according to the present embodiment. The diffusion sheet 6 has at least two layers on a transparent base film.
The surface has an effective portion region (a rectangular region indicated by a two-dot chain line in FIG. 2), and the effective portion region has a transparent portion region 6A and a diffusion portion region 6B each having a size of at least one surface.

As shown in FIG. 1, the diffusion sheet 6 is held in a state where it is wound by a winding unit 7.
A motor 8 for moving the diffusion sheet controls the winding of the diffusion sheet 6 by the winding unit 7. With this control,
The position of the diffusion sheet 6 in the left-right direction is controlled, and control is performed such that one of the transparent partial region 6A and the diffusion partial region 6B substantially matches the display surface of the liquid crystal display device 1.

By controlling the position of the diffusion sheet 6, when the transparent area 6A is located on the display surface of the liquid crystal display 1, the checkered mask 2 and the lenticular 4,
The light directivity generated after passing through 5 is not lost, and each parallax image is observed by the left and right eyes, so that stereoscopic vision becomes possible. That is, the display device functions as a 3D display device. On the other hand, when the diffusion region 6B of the diffusion sheet 6 is located on the display surface of the liquid crystal display device 1, light passing through the lenticulars 4 and 5 is diffused by the diffusion region 6B. The image is lost, and the image of each horizontal stripe is observed by both the left and right eyes, so that stereoscopic vision cannot be performed. That is, the display device functions as a normal 2D display device.

FIG. 3 is a block diagram showing the configuration of the computer system according to the first embodiment.

A host computer 21 can handle two-dimensional images and three-dimensional images. In the host computer 21, reference numeral 21a denotes a CPU,
Various processes are executed in accordance with the control program stored in 1b. The host computer 21 updates a signal to the device driver 22 every time the drawing data is updated. The memory 21b includes a ROM, a RAM, or a magnetic disk driver. Further, a control program for realizing the processing procedure described below by the CPU 21a may be provided from a storage medium such as a floppy (registered trademark) disk and stored in the RAM.

Reference numeral 22 denotes a display driver for controlling the entire drawing of the stereoscopic display according to the present embodiment. 22a
A 2D3D drawing unit controls drawing of data actually drawn on a three-dimensional display, that is, a conventionally handled two-dimensional image or stripe-combined three-dimensional image. Reference numeral 22b denotes a switching drive control unit which controls the diffusion sheet 6 by the motor 8 to switch between three-dimensional display and two-dimensional display.
To control winding. Reference numeral 22c denotes a screen and switching control unit, which instructs a drawing instruction to the 2D3D drawing unit 22a and a two-dimensional and three-dimensional display switching to the switching drive control unit 22b according to the analysis result by the object analyzing unit 22d. An object analysis unit 22d determines and analyzes the type of drawing data.

The device driver 22 may be implemented as an electronic circuit outside the host computer 21 or on a throttle, or may be implemented as one piece of software of the host computer or a configuration in which the software and the electronic circuit are mixed. That is, the host computer 2
1 includes a CPU 21a and a memory 21b storing a control program for realizing the processing procedure described with reference to the attached flowchart, and various functions realized by the display driver 6 may be realized by the CPU 21a of the host computer 21. Good.

The three-dimensional display 23 switches between two-dimensional display and three-dimensional display of the entire screen when displaying images.
The display unit 23a includes the liquid crystal display device 1, the mask substrate 2, the backlight 3, and the lenticulars 4, 5 described above with reference to FIG. The 2D3D switching mechanism 23b includes the diffusion sheet 6, the winding unit 7, and the motor 8.

FIG. 4 is a block diagram showing a schematic configuration of the sheet winding type 2D3D switching mechanism 23b according to the present embodiment. As shown in FIG. 4, the 2D3D switching mechanism includes a pair of winding units 7 (winding units 71 and 72) and a pair of motors 8 (motors 81 b and 82) for taking the diffusion sheet 6 in and out.
b). The drivers 81a and 82a drive the motors 81b and 82b, respectively, according to the control signal of the switching drive control unit 22b. The sheet position sensor 9 detects the position of the diffusion sheet 6 (the transparent area 6A or the diffusion area 6A).
B), and outputs the position signal to the switching drive control unit 2.
Notify 2b. The position of the diffusion sheet 6 is detected by:
It will be apparent that various techniques known to those skilled in the art can be applied, such as providing a predetermined mark on the diffusion sheet and detecting the mark position.

FIG. 5 is a flowchart for explaining the operation of switching between 2D and 3D display by the host computer 21, device driver 22, and stereoscopic display 23 according to the first embodiment. Note that a control program for realizing this processing by the CPU 21a is stored in the memory 21b. Further, as described above, the configuration and functions shown as the device driver 22 may be realized by the CPU 21a.

First, in step S101, a mouse event is acquired by detecting the movement of the mouse and the presence / absence of pressing of the mouse button. In a succeeding step S102, the contents of the mouse event acquired in the step S101 are analyzed. In step S103, as a result of the event analysis in step S102, it is determined whether or not the mouse event is related to drawing a window. Here, an event relating to drawing of a window is, for example, a case where the number of displayed windows increases or decreases. If the mouse event is not related to drawing the window,
In the present embodiment, since the display switching between 2D and 3D is not performed, the process returns to step S101. Step S
101 may be an event other than the mouse, and the step S1
It is also possible to branch from 03 to other event processing.

If the event is related to the drawing of the display window, the process proceeds to step S104, and it is determined whether or not three-dimensional image data exists in the display image after the execution of the event. In the present embodiment, information as to whether or not the image data file includes three-dimensional data is provided in the header portion, and whether or not the image data to be displayed corresponds to the three-dimensional image is determined based on the information in the file header. Shall be. Of course, the determination as to whether or not the data is three-dimensional image data is not limited to this. For example, the determination may be made based on a file extension.

If it is determined in step S104 that there is a three-dimensional image in the image being displayed, the flow advances to step S105 to determine whether switching to 3D display is necessary. As described above, the image display device according to the present embodiment includes:
By setting one of the transparent area 6A and the diffusion area 6B of the diffusion sheet 6 at the screen position of the liquid crystal display device 1,
It is possible to switch between three-dimensional display and two-dimensional display. Therefore, at the time of determination in step S105, the diffusion region 6
When B is in the two-dimensional display state existing at the screen position of the liquid crystal display device 1, the switching drive control unit 22b drives the motor 8 to control the winding of the diffusion sheet 6 around the winding unit 7. In addition, it is necessary to move the transparent area 6A to the screen position of the liquid crystal display device 1 to make a three-dimensional display state. The determination of whether the image display device is in the two-dimensional display state or the three-dimensional display state is made based on the position of the diffusion sheet indicated by a signal from the sheet position sensor 9.

If the image display device is in the two-dimensional display state, it is determined in step S15 that switching to the three-dimensional display state is necessary, and the switching from the two-dimensional display state to the three-dimensional display state in step S106 is performed. Be executed. In other words, the motor 8 is driven by the switching drive control unit 22b to control the winding of the diffusion sheet 6 and the transparent area 6A.
To the screen position of the liquid crystal display device 1.

The movement of the diffusion sheet in switching to the three-dimensional display state is a mechanical operation, and it takes some time from the start to the end of the operation. During the movement of the diffusion sheet, that is, during the switching operation of the display state, a part of the two-dimensional display state and a part of the three-dimensional display state are mixed in the screen, and the display image may be difficult to see. Therefore, if the display corresponding to the user's operation is performed during this switching operation, the display state of the image to be watched by the user may be unsightly. Therefore, step S1
If the switching operation is started in 06, a predetermined restriction is imposed on the display control during the switching operation in steps S107 and S108.

As the display control during the switching operation in step S107, for example, the execution of the display corresponding to the mouse event is suspended, and nothing is displayed during the switching operation. A predetermined image is separated into the left and right eyes. The same stripe image is displayed as a pair so that the images to be displayed are the same image (a predetermined image may be, for example, one that clearly indicates that the switching operation is being performed). Changing the shape (for example, as an hourglass), and combining.

When the setting to the three-dimensional table state is completed as described above, the three-dimensional image data is displayed in step S109, and the adaptation of the two-dimensional image data to the three-dimensional display state is performed in step S110. Perform processing. That is, for the two-dimensional image, the same stripe image is displayed as a pair so that the images separated into the right eye and the left eye by the cross lenticular method become the same image. As a result, the vertical resolution of the two-dimensional image is １ ／.
However, the two-dimensional image can be observed almost as usual. Steps S109 and S110
, The display corresponding to the mouse event is updated.

If it is determined in step S105 that the display is already in the three-dimensional display state and that the switching of the display state is unnecessary, the process proceeds directly to step S109.

If it is determined in step S104 that there is no three-dimensional image in the image being displayed, the process proceeds to step S111. In step S111, it is determined whether switching to the two-dimensional display state is necessary. That is, when the transparent area 6A is in the three-dimensional display state at the screen position of the liquid crystal display device 1, the switching drive control unit 22b
The motor 8 is driven to control the winding of the diffusion sheet 6 around the winding section 7, and the diffusion area 6 </ b> B is set in the liquid crystal display device 1.
To the two-dimensional display state by moving to the screen position.

When the image display device is in the three-dimensional display state, it is determined in step S111 that switching to the two-dimensional display state is necessary, and in step S112, the switching from the three-dimensional display state to the two-dimensional display state is executed. Is done. That is, the motor 8 is driven by the switching drive control unit 22b to control the winding of the diffusion sheet 6 and the diffusion unit area 6B
To the screen position of the liquid crystal display device 1.

As described above, the movement of the diffusion sheet in switching to the two-dimensional display state is a mechanical operation.
It takes some time from the start to the completion of the operation. Therefore, as described in steps S107 and S108, a predetermined restriction is imposed on the display control during the switching operation by the control in steps S113 and S114.

When the switching operation of the display state is completed, the image display device functions in the same manner as a normal two-dimensional image display device, and a normal two-dimensional display is performed in step S115. This step S
In the process of 115, the display corresponding to the mouse event is updated.

As described above, according to the present embodiment, when a three-dimensional image is included or not included due to the increase or decrease of the window caused by the operation of the mouse, the display of the image display device is automatically performed. Since the state is switched, the user does not have to perform the switching operation of the display state each time, and the operability is improved.

According to the above embodiment, the display contents are restricted during the display state switching operation, and the display corresponding to the user's operation is not executed. Therefore, during the display switching operation, the image that the user should watch is not displayed, and it is possible to prevent the user from watching the image in the unsightly display state.

In the above description, a case has been described in which two-dimensional and three-dimensional display switching is performed using a diffusion sheet. However, it goes without saying that the display switching mechanism is not limited to this. It is also possible to use a diffusion sheet, a wire, and the like as in Example 2 described later. That is, the above-described effect can be obtained even in another mechanical switching mechanism (for example, moving the lenticular in the depth direction) that requires a longer time for the switching operation than the display control.

In the above embodiment, the automatic switching between the two-dimensional and three-dimensional image display states in accordance with the display of the window has been described. However, the user directly instructs the switching of the display state using a keyboard, a mouse, or the like. Needless to say, it can be applied to the processing in the case.

<Second Embodiment> In the first embodiment, the entire screen of the image display device is switched to a two-dimensional display state or a three-dimensional display state by moving the diffusion sheet 6. In the second embodiment, a diffusion sheet is provided at a position where a region where light directivity is lost (diffusion portion region) and a region where the light directivity is not present exist on the screen, thereby realizing mixed display of a two-dimensional image and a three-dimensional image. .

The configuration and the like of the image display device according to the second embodiment are the same as those of the first embodiment (FIGS. 1, 3 and 4). However, the configuration shown in FIG. 6 is used as the 2D3D switching mechanism 23b.

FIG. 6 is a view for explaining a 2D / 3D switching mechanism according to the second embodiment. In the second embodiment, the winding units 71 and 72 described above with reference to FIG.
The motors 81b and 82b are called a supply motor 81b and a winding motor 82b, respectively. The entire surface of the diffusion sheet 60 is a diffusion region, and 3D
Switching to the display state is performed by winding the diffusion sheet 60 around the take-up reel 72 and removing the diffusion sheet from the display screen portion. That is, in this case, only the wire 73 is provided between the liquid crystal display device 1 for image display and the lenticular lens 5 so that the image display is not effective (for example, both ends).
Is controlled to exist. The sheet position sensor 9 is provided with a potentiometer for measuring the amount of rotation of the drive shaft of the take-up reel 72, so that it can detect where the end of the diffusion sheet 60 is on the screen.
As shown in FIG. 6, in the second embodiment, the display is switched by winding up the diffusion sheet in the vertical direction.
It is good also as a structure wound up in the horizontal direction as shown in the embodiment. In this case, a GUI or two-dimensional and three-dimensional
Although the way of dividing the screen for the dimensional display area corresponds to the horizontal direction, the processing contents can be easily inferred from the description of the following embodiment. Further, it is obvious that the diffusion sheet 6 in which the transparent region and the diffusion region are mixed as shown in the first embodiment may be used.

In the above configuration, when switching from 3D display to 2D display (switching in the direction of enlarging the area of 2D display), the supply motor 81 b is controlled so that the supply reel 71 takes up the diffusion sheet 60. Drive. At this time, back tension is applied by the winding motor 82b to prevent the diffusion sheet 60 from bending. Conversely, when switching from 2D display to 3D display (switching in a direction to enlarge the 3D display area), the take-up motor 82b is driven so that the take-up reel 72 takes up the diffusion sheet 60. At this time, the back tension is applied by the supply motor 81b to prevent the diffusion sheet 60 from bending. When the diffusion sheet is stopped, both the winding motor 82b and the supply motor 81b are braked. It should be noted that a simple brake such as a short-circuit of a motor terminal may be sufficient as the brake.

Next, mixed display control of two-dimensional and three-dimensional images according to the second embodiment will be described. FIG. 7 is a flowchart illustrating display control of a two-dimensional / three-dimensional image according to the second embodiment. FIG. 8 is a diagram showing an example of image display according to the present embodiment. This process is realized by the CPU 21a executing a control program stored in the memory 21b, as in the first embodiment.

When mixed display of two-dimensional / three-dimensional images is instructed, a 2D / 3D mixed display window 101 is displayed. At this point, the image inside the window has not been displayed yet. In addition, the size of the window 101 may be the entire area of the display screen or smaller. When the window 101 is smaller than the display screen, the window can be opened at an arbitrary position on the screen. Next, for example, by clicking the mouse with the mouse pointer in the window 101, the position of the mouse pointer at that time is obtained, and the position is set as the boundary position between 2D display and 3D display. In the present embodiment, since the diffusion sheet moves in the up-down direction, a boundary line is set in the horizontal direction.

Next, in step S203, the edge 6 of the diffusion sheet is positioned at the boundary position determined in step S202.
The supply motor 81b and the take-up motor 82b are driven to move the diffusion sheet 60 so that 0a is located. In this movement, first, the window 1 at the set boundary position
01, and the position of the window 101 on the display screen of the liquid crystal display device 1 to obtain the position of the boundary position on the display screen. Then, the movement (winding) of the diffusion sheet 60 is controlled while monitoring the output of the potentiometer 90 so that the end 60a of the diffusion sheet 60 is located at the acquired position. When the movement of the diffusion sheet 60 is completed, a boundary line is drawn at the boundary position in step S204. As a result, in the window 101, the 3D display area 1 is located below the boundary line.
In 02, the upper side is the 2D display area 103.

In step S205, the 3D display area 10
2 and 2D are drawn on the display area 103. That is, if the image data specified to be displayed is three-dimensional image data (determined by the file header or extension as described in the first embodiment), the 3D display area 1
02, 2D display area 103 for two-dimensional image data
Will be drawn. As a result, an image display as shown in FIG. 8 is obtained. Also, in FIG.
4 is a boundary line drawn in step S204. In the 3D display area 102, a three-dimensional image 10 of the airplane is displayed.
5 is displayed, and a text display 106 is shown in the 2D display area 103 as an example of a 2D image.

The boundary line 104 is a black line having an appropriate line width in this example. By making the boundary line 104 have a certain line width, it is possible to absorb variations in positioning of the edge portion of the diffusion sheet.

Now, with such a display being made,
When the mouse cursor is moved on the boundary line 104, the process proceeds from step S206 to step S207, and the shape of the mouse cursor is changed as shown by 107 in FIG.
The mouse cursor having such a shape indicates that the boundary line 104 can be moved up and down.

Next, the flow advances to step S208 to determine whether or not a drag operation with the mouse has been performed. If the drag operation has not been performed, the process returns to step S206. However, if the drag operation has been performed, it is recognized that the operation is for changing the position of the boundary line 104, and the process proceeds to step S209.

Now, a description will be given on the assumption that the position of the boundary line 104 has been designated to the position shown in FIG. 8B by the drag operation. In step S209, a boundary position newly set by the drag operation is detected, and the boundary position is updated and set. Then, returning to step S203, the supply motor 81b and the take-up motor 82b are controlled so that the end 60a of the diffusion sheet 60 comes to the newly set boundary position, and the boundary line 104 is drawn at the boundary position in step S204. I do. Then, in step S205, an image is drawn on the new three-dimensional display area 102 and the new two-dimensional display area 103. FIG. 8B shows an example in which the two-dimensional display area 103 is enlarged and a two-dimensional image (document image) can be observed in a wider range.
In the three-dimensional display area 102 and the two-dimensional display area 103, a scroll bar is displayed when the entire image to be displayed is not completely displayed, and the entire two-dimensional or three-dimensional image can be viewed by scrolling. It may be.

If the mouse cursor is not on the boundary in step S206, the flow advances to step S210, and
The cursor is returned to the normal mouse cursor shape as indicated by 108 in FIG. Then, the process returns to step S205.

In the above processing, while the diffusion sheet is moving, the execution of the display corresponding to the mouse event may be suspended as described in the first embodiment (step S107). Further, in the above processing, the luminance of the two-dimensional image displayed via the diffusion unit is lower than that of the three-dimensional image. Therefore, the image data may be changed and displayed so that the luminance of the three-dimensional display image decreases or the luminance of the two-dimensional display increases. Further, in the above process, when the 3D / 2D mixed display window 101 is closed, the 2D3D switching operation shown in the first embodiment may be executed. In this case, FIG. 5 shown in the first embodiment
When the window 101 is closed by a mouse event, if there is no other display of the three-dimensional image data, the diffusion sheet is arranged on the entire surface of the screen and two-dimensional display is performed. Is displayed, the diffusion sheet is removed from the screen (or the transparent area is arranged on the entire surface of the screen) to provide a three-dimensional display.

As described above, according to the second embodiment, the flexibility of the display mode of switching between 2D and 3D images and displaying mixed images is improved by using the diffusion sheet. In particular, the ratio between the two-dimensional display area and the three-dimensional display area can be changed substantially continuously, the display form can be flexibly changed, and it is not necessary to provide an area corresponding to the display pattern in the diffusion sheet as shown in FIG. . Further, when performing two-dimensional and three-dimensional mixed display, the position of the diffusion sheet (that is, the ratio of the three-dimensional display area to the two-dimensional display area) can be intuitively instructed with a mouse, thereby improving operability. . Further, a relative light amount difference between the 2D display and the 3D display, which occurs when switching between the 2D display and the 3D display using the diffusion sheet and performing the mixed display, is reduced.

An object of the present embodiment is to supply a storage medium storing a program code of software for realizing the functions of the above-described embodiment to a system or an apparatus, and to execute the computer (or CPU or MPU) of the system or the apparatus. Needless to say, this can also be achieved by reading and executing the program code stored in the storage medium.

In this case, the program code itself read from the storage medium implements the functions of the above-described embodiment, and the storage medium storing the program code constitutes the present embodiment.

As a storage medium for supplying the program code, for example, a floppy disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD
-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

When the computer executes the readout program code, not only the functions of the above-described embodiment are realized, but also the OS (Operating System) running on the computer based on the instruction of the program code. ) May perform some or all of the actual processing, and the processing may realize the functions of the above-described embodiments.

Further, after the program code read from the storage medium is written into a memory provided on a function expansion board inserted into the computer or a function expansion unit connected to the computer, based on the instructions of the program code, It goes without saying that the CPU included in the function expansion board or the function expansion unit performs part or all of the actual processing, and the processing realizes the functions of the above-described embodiments.

[0066]

As described above, according to the present invention,
When switching between 2D image display and 3D image display involves a mechanical operation, a change in an image according to the operation of the operator is prohibited during the switching operation, thereby preventing the operator from gazing at an image that is difficult to see. be able to. Further, according to the present invention, the flexibility of the display mode of switching / mixing display of 2D and 3D images using a diffusion sheet is improved. Furthermore, according to the present invention, switching between 2D display and 3D display using a diffusion sheet and performing 2D display and 3D display using mixed display are performed.
The relative light amount difference between the D displays is reduced.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a schematic configuration of an image display device according to a first embodiment.

FIG. 2 is a diagram illustrating a diffusion sheet according to the embodiment.

FIG. 3 is a block diagram illustrating a configuration of a computer system according to the first embodiment.

FIG. 4 is a block diagram showing a schematic configuration of a 2D3D switching mechanism 23b of a sheet and winding system according to the present embodiment.

FIG. 5 is a host computer 2 according to the first embodiment;
1 is a flowchart illustrating an operation of switching between 2D and 3D display by a device driver 22 and a stereoscopic display 23.

FIG. 6 is a diagram illustrating a 2D3D switching mechanism according to a second embodiment.

FIG. 7 is a flowchart illustrating display control of a two-dimensional / three-dimensional image according to the second embodiment.

FIG. 8 is a diagram showing an example of image display according to the second embodiment.

FIG. 9 is a diagram for explaining the principle of a cross lenticular system disclosed in Japanese Patent Application Laid-Open No. 10-074267.

FIG. 10 is a view showing a diffusion sheet disclosed in Japanese Patent Application Laid-Open No. 9-304739.

Continued on the front page F term (reference) 2H088 EA02 EA06 HA06 HA12 HA14 HA18 HA26 HA28 MA01 MA20 5B069 AA14 CA02 CA14 CA15 DD06 JA02 5C061 AA07 AA20 AB14 AB17 5C080 AA10 BB05 CC04 DD01 EE17 EE27 JJ01 BB01 BB01 BB01 BB01 CC12 DD04 DD09 EE11 EE26 EE49 FF05 FF06 FF12 FF13 GG02 GG06 GG13 GG41 HH04

Claims (27)

[Claims] 1. A display control device for controlling a display device capable of at least switching between two-dimensional display and three-dimensional display, wherein control is performed to switch the display device to two-dimensional display or three-dimensional display. Instructing means for outputting a command, and the display device is controlled by
Detecting means for detecting that the switching operation to the three-dimensional display or the three-dimensional display is being performed; and restricting the display operation on the display device at least while the detecting means detects that the switching operation is being performed. A display control device comprising: 2. The display device controls the light directivity so as to allow each of the right and left eyes to observe a parallax image to perform three-dimensional display, and cancels the light directivity by a light diffusing member to form a two-dimensional display. The display control device according to claim 1, wherein the switching is achieved, and the detection unit detects that the diffusion member is moving to perform switching to two-dimensional display or three-dimensional display. . 3. The display device controls the light directivity so that each of the left and right eyes can observe a parallax image by an optical member to form a three-dimensional display, and the light directivity is moved by moving the optical member in the depth direction. To achieve switching to two-dimensional display, wherein the detecting means detects that the optical member is moving for switching to two-dimensional display or three-dimensional display. The display control device according to claim 1. 4. An instruction means for switching to a three-dimensional display when an event accompanied by an increase / decrease of a window occurs and a transition is made from a state where a three-dimensional image does not exist to a state where a three-dimensional image exists due to the event. The display control device according to claim 1, wherein a control command is output to switch to a two-dimensional display when a transition from a state where a three-dimensional image is present to a state where no three-dimensional image is present. 5. The display control device according to claim 1, wherein the display restricting unit prohibits execution of a display instructed by a user while the detecting unit detects that the switching operation is being performed. Display control device. 6. The display control device according to claim 5, wherein the display restriction unit further sets a display screen of the display device in a non-display state. 7. The display restricting means further displays a predetermined two-dimensional image on a display screen of the display device, and displays the predetermined two-dimensional image for each of a left eye and a right eye in three-dimensional display. The display control device according to claim 5, wherein the same image is displayed in a parallax image area. 8. The display according to claim 5, wherein when a mouse pointer is displayed on the display screen, the display restricting unit further changes the shape of the mouse pointer to a predetermined shape. Control device. 9. A two-dimensional image by generating light directivity for observing a parallax image with each of right and left eyes so that a three-dimensional image can be observed, and canceling the light directivity by a light diffusion member. A display device that controls a display device that enables observation of the light, based on a position detected by the pointing device in a display screen, based on the position detected by the pointing device. Position control means for controlling the position of the diffusion member, and after positioning the light diffusion member by the position control means,
Display control means for controlling image display by setting a region where the light diffusing member is present in the display screen as a two-dimensional display region and a region where the light diffusing member is not present as a three-dimensional display region. Display control device. 10. The position control means determines a boundary position of a two-dimensional or three-dimensional display area based on the position detected by the detection means, and the end of the light diffusing member is located at the boundary position. 10. The display control device according to claim 9, wherein the position of the diffusion member is controlled as described above. 11. The display control device according to claim 10, further comprising: means for drawing a boundary line at a position corresponding to the boundary position on the display screen. 12. A changing means for changing the shape of the pointer indicating the position pointed by the pointing device to the predetermined shape when the pointer is at the boundary position, and a predetermined operation performed with the pointer changed to the predetermined shape. 11. The display control device according to claim 10, further comprising: updating means for updating the boundary position in accordance with the condition. 13. The image data displayed on at least one of the two-dimensional display area and the three-dimensional display area is changed so that the display luminance is substantially the same between the two-dimensional display area and the three-dimensional display area. The display control device according to claim 10, further comprising: 14. A display control method for controlling a display device capable of at least switching between two-dimensional display and three-dimensional display, wherein the display device is controlled to switch between two-dimensional display and three-dimensional display. An instruction step of outputting an instruction; and a control instruction in the instruction step, the display device is driven
A detecting step of detecting that the switching operation to the three-dimensional display or the three-dimensional display is being performed; and restricting the display operation of the display device at least while the switching operation is being detected by the detecting step. And a display restriction step. 15. The display device controls the light directivity so that each of the left and right eyes observes a parallax image to perform three-dimensional display, and cancels the light directivity by a light diffusing member to form a two-dimensional display. 15. The display control according to claim 14, wherein the switching is achieved, and the detecting step detects that the diffusion member is moving for switching to two-dimensional display or three-dimensional display. Method. 16. The display device controls the light directivity so that each of the left and right eyes observes a parallax image with an optical member to form a three-dimensional display, and the light directivity is moved by moving the optical member in the depth direction. And switching to two-dimensional display is achieved by canceling out. In the detecting step, it is detected that the optical member is being moved for switching to two-dimensional display or three-dimensional display. The display control method according to claim 14, wherein: 17. In the instruction step, when an event accompanied by an increase or decrease of a window occurs and a transition is made from a state where a three-dimensional image does not exist to a state where a three-dimensional image exists by the event, switching to three-dimensional display is performed by the event. The display control method according to claim 14, wherein a control command is output to switch to a two-dimensional display when a transition is made from a state where a three-dimensional image exists to a state where no three-dimensional image exists. 18. The display control method according to claim 14, wherein the display restricting step prohibits execution of a display instructed by a user while the detecting step detects that the switching operation is being performed. Display control method. 19. The display control method according to claim 18, wherein in the display restriction step, a display screen of the display device is set to a non-display state. 20. The display restriction step, further comprising: displaying a predetermined two-dimensional image on a display screen of the display device, wherein the predetermined two-dimensional image is displayed for each of a left eye and a right eye in three-dimensional display. 19. The display control method according to claim 18, wherein the same image is displayed in a parallax image area. 21. The display according to claim 18, wherein when a mouse pointer is displayed on the display screen, the display restriction step further changes the shape of the mouse pointer to a predetermined shape. Control method. 22. A two-dimensional image by generating light directivity for allowing a parallax image to be observed by each of right and left eyes so that a three-dimensional image can be observed, and by canceling the light directivity by a light diffusion member. A display control method for controlling a display device that enables observation of the light, based on a position detected by a pointing device in a display screen, the light being detected based on the position detected by the detection step. A position control step of controlling the position of the diffusion member, and after the positioning of the light diffusion member by the position control step,
A display control step of controlling an image display by setting a region where the light diffusing member is present in the display screen as a two-dimensional display region and a region where the light diffusing member is not present as a three-dimensional display region. Display control method. 23. The position control step determines a boundary position of a two-dimensional or three-dimensional display area based on the position detected by the detection step, and an end of the light diffusing member is located at the boundary position. 23. The display control method according to claim 22, wherein the position of the diffusion member is controlled as described above. 24. The display control method according to claim 23, further comprising a step of drawing a boundary line at a position on the display screen corresponding to the boundary position. 25. A changing step of changing a shape of a pointer indicating a position pointed by the pointing device to a predetermined shape when the pointer is at the boundary position, and a predetermined operation performed in a state where the pointer is changed to the predetermined shape. 24. The display control method according to claim 23, further comprising: an updating step of updating the boundary position according to the following. 26. Image data displayed on at least one of the two-dimensional display area and the three-dimensional display area is changed so that display luminance is the same between the two-dimensional display area and the three-dimensional display area. The display control method according to claim 23, further comprising the step of: 27. A storage medium storing a control program for causing a computer to implement the control method according to claim 14. Description: