JPH1074267A - Display control device and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suitably control the display of an object by recognizing whether each object can be three-dimensionally displayed or not. SOLUTION: In a display driver 6 for controlling a stereoscopic display 12 capable of displaying two-dimensional(2D) and three-dimensional(3D) pictures, an object analyzing part 10 judges whether an object to be displayed on an LCD 1 is to be three-dimensionally displayed or not based on whether the object has 3D picture data or not and whether a window related to the object is active or not. At the time of judging the executing of 3D display, a picture control part 9 informs a picture plotting part 7 of a stereoscopic picture to be plotted on the LCD 1 and informs a check mask pattern plotting part 8 of the position and dimension of the area. A plotting part 7 plots a stereoscopic picture on the LCD 1 and the plotting part 8 displays a checkered mask pattern on a position corresponding to the stereoscopic picture on the LDC 2 so as to stereoscopically observe it.

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 controlling a stereoscopic display device that allows a user to observe a stereoscopic image by using a parallax between a right eye and a left eye.

[0002]

2. Description of the Related Art Conventionally, there is a computer system in which a graphical user interface is mounted. There are also systems that can switch between two-dimensional display and three-dimensional display and perform mixed display.

(1) Description of Graphical User Interface In general, input devices such as a keyboard, a tablet, a mouse, and a trackball are used to operate a computer and input data. The above-mentioned input means, such as a window, an icon, a pull-down menu, and the like, particularly a tablet or a mouse capable of inputting coordinate information and trajectory information to a computer while watching a monitor is a graphical user interface (hereinafter, referred to as a tablet). It is often used together with a GUI, which improves the operability of the computer and enables intuitive operation.

FIG. 35 is a hierarchical diagram of a typical computer system using a GUI as an operating system. In the figure, reference numeral 500 denotes application software (hereinafter simply referred to as an application) used by the user, and reference numeral 501 denotes a visual shell which is an environment for the user to actually and interactively operate the computer. The application is a GUI component API50
2. GUI parts library / server 503, drawing API 504 for drawing on display 506, drawing library / server 505, and other peripheral devices 509
By using other APIs 507 for using the API, other libraries / servers 508, device drivers 510 for controlling each device, etc., a visual shell of a GUI environment can be constructed, and external peripherals can be constructed. This is achieved by controlling the devices.

The progress of computer software and hardware is remarkable, and the development of display devices is no exception. High-quality color, large-screen, high-definition, etc. are being promoted. On the other hand, stereoscopic observation of the display
There is also a tendency to pursue more information and a sense of reality, and several methods have been proposed and implemented.

(2) Description of stereoscopic display means: As a system for performing stereoscopic display on a display, a stereoscopic image display system using a parallax barrier (hereinafter, referred to as a parallax barrier system) is widely known. I have.

For the parallax barrier method, see S.M.
H. Kaplan, “Theory of Parallax Barriers”, J. SMPTE, Vo
l.59, No. 7, pp. 11-21 (1952). According to this method, of a plurality of parallax images from a plurality of viewpoints, at least a stripe image in which left and right parallax images are alternately arranged is provided in a predetermined opening provided at a position separated by a predetermined distance from the image. It is possible to perform stereoscopic viewing by observing a parallax image corresponding to each of the left and right eyes through a slit having a (referred to as a parallax barrier).

Further, in order to improve compatibility with a two-dimensional image (one viewpoint image) display device, a parallax barrier is generated electronically by a transmission type liquid crystal display device or the like, and the shape and position of the barrier stripe are formed. A three-dimensional display device that electronically variably controls such a device is disclosed in Japanese Unexamined Patent Publication No. Hei.
9 and JP-A-5-122733.

FIG. 36 is a basic configuration diagram of a three-dimensional image display device disclosed in Japanese Patent Laid-Open No. 3-119889.
The three-dimensional image display device includes a transmissive liquid crystal display device 101 for displaying an image and a transmissive liquid crystal display element disposed on the transmissive liquid crystal display device 101 via a spacer 102 having a thickness d. The transmissive liquid crystal display device 101 displays a parallax image captured from two directions or multiple directions as a vertical stripe image. The electronic parallax barrier 103 is designated with an XY address by a control unit such as a microcomputer 104 to form a parallax barrier pattern at an arbitrary position on the barrier surface. According to the principle of 3D.

FIG. 37 is a diagram showing a configuration of a display section of a three-dimensional image display device comprising a liquid crystal panel display and an electronic parallax barrier disclosed in Japanese Patent Application Laid-Open No. 3-119889. Liquid crystal layer 115, 1
25 are used as two polarizing plates 111, 118 and 12 respectively.
It is configured to be sandwiched between 1,128. In this apparatus, when displaying a two-dimensional image, the display of the electronic parallax barrier pattern is stopped, and the electronic barrier 103 is stopped.
By achieving a colorless and transparent state over the entire image display area, compatibility with two-dimensional display is realized.

FIG. 38 is a diagram showing a difference in a parallax barrier pattern formed on an electronic parallax barrier depending on a difference in the number of viewpoints. As shown in the figure, when observing a stripe image composed of two viewpoint parallax images, the width A of the light-shielding portion as the parallax barrier and the width B of the light-shielding portion may be the same, but as the number of viewpoints increases, the electronic type becomes smaller. The aperture ratio of the parallax barrier is reduced.

Japanese Patent Application Laid-Open No. 5-122733 discloses that a barrier stripe pattern is generated only in a part of an electronic parallax barrier 103 composed of a transmission type liquid crystal display element as shown in FIG. An example is disclosed in which a three-dimensional image and a two-dimensional image can be mixedly displayed in the same plane.

In addition to the parallax barrier method,
As a means for displaying a stereoscopic image using binocular parallax between the right eye and the left eye, a lenticular method is widely known. In the lenticular system, a lenticular having a large number of lens-like lenses arranged in front of a display is provided to separate images spatially into the left and right eyes, thereby allowing a user to observe a stereoscopic image.

[0014]

However, a two-dimensional display having a GUI implemented by being connected to a computer and a three-dimensional display having a GUI are disclosed.
Regarding a system in which two-dimensional display can be switched or two-dimensional display and three-dimensional display can coexist, objects such as windows and icons operated by a user are three-dimensionally displayable objects or two-dimensionally displayed objects Since there is no means for judging this in the computer system, the following problem occurs. (1) In a device configured to switch between three-dimensional display and two-dimensional display, when a plurality of windows, icons, and the like are displayed and any of these objects is actively switched to move the current of the application. In addition, since the host computer cannot determine whether to switch from the two-dimensional display to the three-dimensional display, or to switch from the three-dimensional display to the two-dimensional display, or to keep the state as it is, the user specifies every time. Alternatively, a switching instruction had to be given. (2) In an apparatus having a configuration in which three-dimensional display and two-dimensional display are mixed, similarly, it is necessary for the user to specify a three-dimensional display object or a two-dimensional object for each object. (3) In an apparatus configured to switch between three-dimensional display and two-dimensional display, when performing three-dimensional display, the two-dimensional display part is not arranged in an image arrangement adapted to the three-dimensional display. became. (4) It has been pointed out that a stereoscopic display using binocular parallax is not suitable for long-term observation from a physiological point of view.
Since there is no distinction between the three-dimensional display and the two-dimensional display of the object, the three-dimensional display continues to be displayed in the three-dimensional display, giving the user a physiological discomfort or an adverse effect.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a display control apparatus and a display control device capable of recognizing whether or not three-dimensional display is possible for each object, and appropriately controlling the display of the object. The aim is to provide a method.

[0016]

A display control device according to the present invention for achieving the above object has the following arrangement. That is, a display control device capable of two-dimensional display and three-dimensional display, and performing three-dimensional display on an object displayed on a display screen based on whether or not the object has three-dimensional image data. Determining means for determining whether or not to perform three-dimensional display by the determining means; determining means for determining a region corresponding to the object on the display screen as a three-dimensional display region; Display means for performing three-dimensional display on the three-dimensional display area.

The display control method of the present invention for achieving the above object is a control method of a display control device capable of two-dimensional display and three-dimensional display, wherein an object displayed on a display screen is three-dimensional. A determination step of determining whether or not to execute three-dimensional display on the object based on whether or not the object has image data; and if the determination step determines that three-dimensional display is to be performed, A determining step of determining an area corresponding to the object as a three-dimensional display area; and a displaying step of performing three-dimensional display on the three-dimensional display area on the display screen.

[0018]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, first to ninth embodiments will be described as examples of the embodiment. Note that, in the drawings used for the description, configurations with the same reference numerals are described as having the same function.

<First Embodiment> In the first embodiment,
A computer system that operates in the above-described GUI environment and includes a stereoscopic display capable of stereoscopic display will be described. The three-dimensional display means of the first embodiment includes a first display element for displaying a left-right parallax image or a normal two-dimensional image, a horizontal lenticular having a horizontal generatrix direction, and a vertical lenticular having a vertical generatrix direction. And a second display element for displaying a checkered mask. Note that the three-dimensional display system realized by the above optical configuration is called a cross lenticular system.

Before describing the characteristic portions of this embodiment, a three-dimensional display capable of displaying two-dimensional and three-dimensional images in a cross-lenticular manner will be described. In the first embodiment, a two-dimensional and three-dimensional mixed display will be described. However, since the two-dimensional and three-dimensional mixed display is to partially switch between two-dimensional and three-dimensional display, this switching area is set to If you switch over the entire screen, 2D and 3D
Obviously, a full-screen switching display of the dimension becomes possible.

(1) Description of Principle of 3D Display in Cross Lenticular System The principle of 3D display in the cross lenticular system will be described below with reference to the drawings. FIG. 1 is a perspective view for explaining the principle of the cross lenticular system used in the present embodiment. However, the description here is merely a principle configuration of the stereoscopic display optical system, and the configuration of the first embodiment is partially different as described later.

Reference numeral 1 denotes a liquid crystal display device for displaying an image.
Is a display pixel portion formed of a liquid crystal layer or the like, and 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 substrate 20 on which a mask pattern 209 having a checkered opening 208 through which light is transmitted is formed in front of the mask pattern 209.
7 are arranged. 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 20 made of transparent resin or glass are used as microlenses.
3,204 are arranged. 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 passes through each opening 208 of the mask substrate 207, illuminates the image liquid crystal display device 1 through the lenticulars 203 and 204, and the left and right parallax images are separately observed by both eyes of the user. .

FIG. 2 is a view for explaining the principle that left and right parallax images are horizontally separated and observed by both eyes of a user.
This figure shows a cross section of the stereoscopic image display device described in FIG. 1 as viewed from above. When the mask substrate 207 is illuminated by the backlight 3, light is emitted from the opening 208.
The lenticulars 203 are arranged on the mask substrate 207, and the lens curvature is designed so that the mask pattern comes to almost the focal position of each of the cylindrical lenses.

The pattern of the opening and the light-shielding portion shown in FIG. 2 corresponds to the left image of the horizontal stripe-shaped left and right images displayed on the image display liquid crystal display device 1 alternately. Therefore, the light emitted from the opening 208 passes through the lenticular 203 and illuminates the left image of the image display liquid crystal display device 1 with directivity in a range indicated by a solid line in the drawing. In the figure, EL indicates the left eye of the user and ER indicates the right eye, and the pitch of the lenticular 203 is set such that the light from the opening 208 is uniformly collected on the left eye over the entire width of the image. The pitch is slightly smaller than the pitch between each pair of openings and light-shielding portions. In other words, the pitch of the lenticules 203 is
9 is slightly smaller than the pitch of the openings. As a result, the left image on the horizontal stripe displayed on the image display liquid crystal display device is observed only in a range near the left eye EL. As for the right eye ER, the pattern of the opening of the mask pattern 209 and the pattern of the light shielding portion are opposite to those in FIG. In other words, the right and left images of the horizontal stripe-shaped left and right images alternately arranged on the image display liquid crystal display device 1 correspond to the stripes of the right image. Illuminated with directivity. As a result, the horizontal stripe-shaped right image displayed on the image display liquid crystal display device is observed only in a range near the right eye ER. In this way, the left and right images on the image display liquid crystal display device are observed separately in the horizontal direction for the left eye and the right eye.

Next, the observation region in the vertical direction will be described.
FIG. 3 is a schematic side view of a vertical cross section of the three-dimensional image display device using the cross lenticular method shown in FIG. In FIG. 3, the lenticular 203 having no optical action and the substrate made of flat glass not directly related to the optical action are omitted in this section, and the lenticular 204 is also conceptually represented. The openings of the mask pattern of the mask substrate 207 are checkered as shown in FIG.
Corresponds to the horizontal stripe-shaped left and right images arranged alternately in the upper and lower directions.

In FIG. 3, the opening pattern of the checkered aperture 208 is for illuminating the image line for one of the eyes of the user, for example, for illuminating the image line for the left eye of the user. The black portion 208 is a light-shielding portion that does not transmit light. In addition, a line corresponding to the left eye of the liquid crystal display device 1 is represented by white, and a line corresponding to the right eye is represented by black.

Here, the pitch of the mask pattern in the vertical direction is Vm, the pitch of the lenticular 204 is VL, and the focal length of each of the cylindrical lenses constituting the lenticular 204 in the direction shown in FIG. When the vertical pixel pitch of the liquid crystal display device is Vd, the distance from the display surface of the image display liquid crystal display device to the lenticular 204 is L1, and the distance from the lenticular 204 to the mask pattern is L2, Vd: Vm = L1: L2 (1) Vd: VL = (L1 + L2) / 2: L2 (2) 1 / fv = 1 / L1 + 1 / L2 (3)

At this time, the openings of the mask pattern converge on the corresponding pixel lines as focal lines perpendicular to the plane of FIG. Focusing on one of the checkered openings, the corresponding cylindrical lens 204-1 of the lenticular 204 emanating from the center point A of the central opening 208-1.
Is incident on the corresponding pixel column 20 of the liquid crystal display device.
The light is focused on a focal line on the center point A ′ of 6-1. A light beam emitted from the center point A of the central opening 208-1 and incident on the cylindrical lens constituting the lenticular 204 other than 204-1 has a focal line at the center of a pixel line for displaying an image for the left eye of the liquid crystal display device. As light.

The luminous flux emitted from the points B and C at the end of the opening 208-1 and incident on the corresponding cylindrical lens of the lenticular 204 to the pixel row 204-1 is a pixel beam 206-1.
Are focused on the focal lines on the points B 'and C' at the ends of. Similarly, light beams emitted from other points of the opening 208-1 and incident on the cylindrical lens 204-1 are condensed as focal lines on the pixel rows 206-1 of the liquid crystal display device. Opening 2
All the light fluxes that have emitted 08-1 and entered the cylindrical lenses other than 204-1 are also collected on the pixel line of the liquid crystal display device 1 that displays the image for the left eye.

The opening 20 of the checkered pattern shown in FIG.
Similarly, all the luminous fluxes emitted from the openings other than 8-1 are condensed on the pixel line for displaying the image for the left eye of the liquid crystal display device 1, and illuminate the pixel line for the left eye of the liquid crystal display device Observation area that transmits and diverges only in the vertical direction according to the numerical aperture when condensed, so that the left and right images appear to be uniformly separated over the entire vertical width of the screen from the user's predetermined eye height Is obtained. Here, the image for the left eye of the user has been described, but the same operation is performed for the image for the right eye of the user.

FIG. 4 is a side view of a vertical cross section of the three-dimensional image display device shown in FIG. FIG. 3 also shows members omitted in FIG. Here, the pitch of the opening of the mask pattern in the vertical direction is Vm, the pitch of the lenticular 204 is VL, the pixel pitch in the vertical direction of the image display liquid crystal display device is Vd, and the lenticular 204 is viewed from the display surface of the image display liquid crystal display device. Let L be the distance to the user's main plane.
1. When the distance from the main plane of the lenticular 204 on the mask substrate side to the mask pattern is L2, and the focal length fv of each of the cylindrical lenses constituting the lenticular 204 in the direction in the plane of FIG. (2),
Vd = Vm = VL, L1 so as to satisfy the relationship of the expression (3).
= L2 and fv = L1 / 2. That is,
As already described with reference to FIG. 3, an observation area in which the left and right images appear to be uniformly separated over the entire vertical width of the screen from the predetermined eye height of the user can be obtained.

In the above description, as viewed from the user side,
Liquid crystal display device 1, lenticular 204, lenticular 2
03, the three-dimensional image display device is configured by arranging the checkered openings 208 in this order.
The order of 4 may be changed. In this case, the stereoscopic image display device can be configured in the same manner as the above configuration by resetting the pitch and focal length of the lenticular 203 and the lenticular 204 and the vertical and horizontal pitches of the checkered aperture so as to satisfy all the above-described conditions. It becomes possible.

In the description of the optical principle of the present embodiment, a patterned light source is formed by using a light source panel and a checkered mask. However, a light source patterned by a self-luminous element such as a CRT is similarly used. Obviously, the stereoscopic image display device of the embodiment can be configured.

(2) Switching between Two-Dimensional Display and Three-Dimensional Display Principle of Mixed Display In the above description, a case has been described where a stereoscopic image is always displayed on the entire display screen. However, a spatial light such as a liquid crystal display is used instead of a checkered mask. By using the modulation element, it is possible to display a stereoscopic image only in a predetermined area of the image display surface, and to display a normal two-dimensional image in other portions. It is also possible to switch between two-dimensional display and three-dimensional display over the entire screen, instead of displaying only a part of the predetermined region three-dimensionally.

FIG. 5 is a view for explaining a three-dimensional image display device which enables a mixed display of two-dimensional display and three-dimensional display. In the above description of the principle, the mask substrate 207 on which the mask pattern having the checkered openings is formed is a fixed opening. However, in the first embodiment, a transmission type spatial light modulation such as a transmission type liquid crystal element is used instead. Element 2 (LCD2) is used. Other optical parts have the same configuration as described above. The LCD 2 driving circuit 4 draws a checkered mask pattern on the spatial light modulator 2 based on the data subjected to the predetermined processing, and performs a three-dimensional partial display.

Next, the spatial light modulator 2 as shown in FIG.
A method of displaying a three-dimensional image when is used will be described.
FIG. 6 is a diagram illustrating a stereoscopic image display method by the stereoscopic display device shown in FIG. FIG. 6A shows a pattern of a light transmitting part and a light shielding part of the spatial light modulator 2, and FIGS.
(C) shows a display pixel portion of the liquid crystal display device 1 for screen display. Similarly to the above-described stereoscopic image display, the left and right parallax images are alternately combined in a horizontal stripe and displayed on the liquid crystal display device 1.

In FIG. 6A, when the light transmitting portion of the spatial light modulator 2 is formed in each of the rectangular portions 281 indicated by solid lines and the rectangular portion 282 is formed as a light shielding portion, (B), the right parallax image R1 on the first scanning line, the left parallax image L2 on the second scanning line, and the right parallax image R on the third scanning line.
The first combined stripe images combined so as to be 3,... Correspond to each other, and the left and right parallax images are separately observed by the left and right eyes of the user. On the other hand, in FIG. 6A, a light transmitting portion is formed in each of the rectangular portions 282 indicated by dotted lines,
When 81 is a light-shielding portion, the first light-shielding portion as shown in FIG.
The left parallax image L1 is on the scanning line, and the right parallax image R is on the second scanning line.
The second and third scanning lines correspond to a second combined stripe image combined to form a left parallax image L3,..., And the left and right parallax images are separately observed by the left and right eyes of the user. By alternately displaying this state in a time-sharing manner, the resolution of the left and right parallax images, which has been reduced by half due to stripe composition, can be displayed at a high resolution without lowering the resolution.

When there is a difference between the rewriting speed of the display pixel portion of the liquid crystal display device 1 for displaying an image and the rewriting speed of the spatial light modulator, the timing of rewriting the image and the rewriting of the aperture pattern are made coincident with each other to allow the user to make the boundary. It is also possible to synchronize the display drive circuit and the spatial light modulation element drive circuit so that they cannot be seen. At this time, the display pixel portion of the image display liquid crystal display device and the corresponding scan line of the liquid crystal display device may be rewritten synchronously for each pixel, or may be rewritten synchronously for each corresponding scan line. .

In a normal stereoscopic display method in which two parallax images of a right-eye image and a left-eye image are displayed in a time-division manner for each screen, the frame frequency is set to 120 Hz in order to prevent flicker.
Need to be raised. However, in the method of the present embodiment, since the left and right parallax images are combined and displayed in the form of a horizontal stripe, it is possible to observe with high resolution without feeling flicker even at a frame frequency of 60 Hz.

In this embodiment, the opening pitch of the mask pattern in the vertical direction is Vm, and the pitch of the lenticular 204 is V
L, the focal length fv of each of the cylindrical lenses constituting the lenticular 204 in the direction of the paper in FIG. 3, the vertical pixel pitch of the image display liquid crystal display device is Vd, and the lenticular from the display surface of the image display liquid crystal display device. Vd = Vm = VL, L1 where L1 is the distance from the lenticular 204 to the mask pattern, and L2 is the distance from the lenticular 204 to the mask pattern.
= L2 and fv = L1 / 2. Here, since Vd = Vm, a liquid crystal display having the same pixel pitch as the liquid crystal display for image display can be used as the spatial light modulator.

Next, a description will be given of a mixed display means for switching between two-dimensional display and three-dimensional display in this configuration. In the above configuration using the transmissive spatial light modulator 2 such as a transmissive liquid crystal element, a predetermined area can be displayed as a three-dimensional image by controlling the aperture pattern, and the other part can display a two-dimensional image. it can. This will be described with reference to FIG. FIG. 7 is a diagram for explaining a method of displaying a three-dimensional image and a two-dimensional image in a mixed manner by the stereoscopic display device shown in FIG. 3A shows a pattern of a light transmitting part and a light shielding part of the spatial light modulator 2, and FIG. 3B shows an image pattern of the display pixel part 1 of the image display liquid crystal display device. As shown in (B), in a region 291 of the liquid crystal display device 1 for displaying a stereoscopic image, a horizontal stripe image in which left and right parallax images R, L, R,. Displays a normal two-dimensional image S.

The spatial light modulator 2 corresponding to FIG.
7A is as shown in FIG. 7A. Region 291 of liquid crystal display device 1 displaying stereoscopic image
In the area 292 of the spatial light modulator 2 corresponding to the above, a checkered opening pattern is formed. As a result, the areas 291, 29
In the part corresponding to No. 2, the left and right parallax images in which the transmitted light has directivity separately reach the left and right eyes. In other areas, all the apertures are in a light-transmitting state so that the two-dimensional image S reaches both the left and right eyes. Thus, a stereoscopic image can be displayed only in the area 291. Further, as described above, the resolution of the stereoscopic image can be increased by alternately displaying the first combined stripe image and the second combined stripe image and changing the aperture pattern in synchronization with the first combined stripe image and the second combined stripe image.

(3) Description of the Computer System According to the Present Embodiment FIG. 10 is a block diagram showing the configuration of the computer system according to the first embodiment. In the present embodiment, when displaying an image, a two-dimensional image and a three-dimensional image (stereoscopic image) are switched and displayed on part or all of the screen, or some windows are provided on the display screen, and an area limited by the windows is provided. Each time, a two-dimensional image and a three-dimensional image are mixedly displayed. In the figure, reference numeral 1 denotes a liquid crystal display device (LCD1) for displaying a two-dimensional image (two-dimensional image information), a three-dimensional image (three-dimensional image information), or a mixture thereof on its display surface. Reference numeral 2 denotes a spatial light modulator, which is configured by a liquid crystal display (LCD2). As described above, according to the display of the stripe image on the LCD 1, the LCD 2 displays the checkered mask pattern in the area corresponding to the stripe image. The checkerboard mask pattern is a pattern in which checkerboard-shaped light transmitting portions and light shielding portions are alternately arranged to guide light beams from the stripe pixels of the right and left parallax images constituting the stripe image displayed on the LCD 1 to predetermined observation positions. is there. Further, the LCD 2 for displaying the checkered mask pattern has a matrix structure, so that the checkered mask pattern can be formed at an arbitrary size on an arbitrary position on the display surface.

In FIG. 10, reference numeral 4 denotes an LCD2 driving circuit for driving the LCD2, and reference numeral 5 denotes an LCD1 driving circuit for driving the LCD1. Reference numeral 6 denotes a display driver that controls the entire drawing of the stereoscopic display according to the present embodiment, and includes the following elements 7, 8, 9, and 10.

Reference numeral 7 denotes an image drawing unit, which 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. 8 is a checkered mask pattern drawing unit,
In order to generate a three-dimensional image at a designated position and size, drawing control of a checkered mask pattern is performed. Reference numeral 9 denotes a screen control unit which generates and allocates a drawing signal to the image drawing unit 7 and the checkered mask pattern drawing unit 8 described above. Reference numeral 10 denotes an object analysis unit that determines the type of drawing data.
To analyze. Reference numeral 11 denotes a host computer capable of handling two-dimensional images and three-dimensional images. The host computer 11 updates the signal to the device driver every time the drawing data is updated. The device driver may be implemented by an electronic circuit outside the host computer 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 11 includes a CPU 11a and a memory 11b in which a control program for realizing the processing procedure described with reference to the attached flowchart is stored.
The PU may be realized. Here, the memory 11b
Includes a ROM, a RAM, or a magnetic disk driver. Therefore, the processing procedure described below is executed by the CPU 11a.
May be provided from a storage medium such as a floppy disk and stored in the RAM.

(4) Operation environment of this embodiment, ie, GU
Description of I FIG. 11 is a diagram showing a display example of a GUI operating in the present embodiment. Here, the display state of the screen of the three-dimensional display 12 connected to the host computer is shown. 30 is an outer frame of the outermost boundary of the screen, 31 is a title bar of the screen, 32 is a menu bar used in a pull-down menu, 33 is a window for displaying an image, 34a, 34b, 34c and 34d are discs. The icon is an object for virtually displaying a file or an input device to a user. Reference numeral 35 denotes a pointer which can be moved by a mouse (not shown) for selecting an object or inputting plane coordinates. 36
Is the background of the aforementioned object. As described above, the GUI using the icons 34a to 34d, the window 33, the menu 32, and the like is used to move, copy, and delete files, perform input and output with peripheral devices, and perform such operations on a display. In order to secure a place on the window area of the desktop, a directory on a file system or an object such as an icon, a window, or a menu associated with an application may be moved.

FIG. 12 is a view showing a display example of a GUI displaying a plurality of windows in this embodiment. Reference numerals 30a, 30b, and 30c denote windows opened by the user to display images, and other objects may be hidden according to the overlapping of the windows. In the overlapping of the objects, the window is displayed so that the window is active or the time when the event has acted is prioritized.

(5) Outline of Operation of Application, In particular, Outline of Event Processing Next, outline of the operation processing of the application will be described.
FIG. 13 is a flowchart showing the flow of processing of an application operating in the GUI environment described above. The processing shown in this example is also called an event driven type.

In step S40, initialization is performed. In the initialization process, a memory in the computer system is secured in order to actually operate the application, the contents of registers to be used are protected, or objects such as necessary windows and icons are generated. Step S41 is processing for acquiring an event in which the user works on the computer. The events referred to here are mouse movement, mouse button press / release, various key press / release, disk insertion, and the like.

In step S42, the aforementioned step S4
The process corresponding to the event acquired in 1 is executed. For example, when a menu “Open File” is selected from a pull-down menu using a mouse, a corresponding process is executed. In step S43, it is determined whether or not the event is an event (end event) issued by the user acting on the computer to end the running application. If it is not an end event, the process returns to step S41 to acquire a new event. If it is determined that the event is the end event, the process proceeds to step S44, where predetermined processing such as releasing the secured memory or closing the file is executed, and the application is terminated.

(6) Structure of Three-Dimensional Image File Used in the Present Embodiment The data structure of an image file drawn in a window capable of displaying a three-dimensional image with the objects used in the present embodiment will be described as an example. . FIG. 14 shows the third embodiment.
FIG. 4 is an explanatory diagram illustrating a structure of two-dimensional image data. Reference numeral 50 denotes a three-dimensional image file according to the present embodiment. Reference numeral 51 denotes a file header indicating an attribute of the image file, 52 denotes three-dimensional image data subjected to stripe composition, and 53 denotes a characteristic two-dimensional state in a parallax image used for stripe composition.
This is dimensional image data. Generally, the file header describes the file name, file creation date, file capacity, image format, image compression means, etc., and the application analyzes the header to read the image data and draw it on the computer. ing. On the other hand, in the case of the present embodiment, in addition to the above information, whether or not a three-dimensional image can be displayed, the number of viewpoint images of the three-dimensional image, the amount of parallax of the three-dimensional image, the presence or absence of the two-dimensional image, and the like Image-specific data is also described.

In this embodiment, stripe-composite three-dimensional image data is stored as the three-dimensional image data of the three-dimensional image file 50, but the form of the three-dimensional image data is not limited to this. For example, a configuration in which a plurality of parallax images are formed and stripes are combined on an application may be used.

An extension may be added to the file name to clarify the file of the image having the three-dimensional image data. Further, data relating to a window frame may be attached to the file header. In this case, data for displaying a window frame for three-dimensional display different from two-dimensional display may be stored.

(7) Operation when Switching to Three-Dimensional Window The GUI environment has been described above with reference to FIGS. 11 and 12. Next, the handling of a three-dimensional image file, which is a feature of the present embodiment, will be described with reference to FIGS. FIG. 15 is a diagram illustrating a state in which the switching to the three-dimensional display is partially performed in the GUI environment according to the present embodiment.

Here, the object window 33 in FIGS. 11 and 15 is the three-dimensional image file described above with reference to FIG. In the state of FIG.
Indicates the icon 34a, and the icon 34 at this time
a indicates an active state in which the color or luminance of the icon changes. That is, it indicates that the current of the process has moved to this icon. At this time, the icon 34a can be moved to another location by dragging with the mouse, or a file associated with the icon 34a can be opened by double-clicking.

Next, it is assumed that the user moves the pointer 35 with the mouse from the state shown in FIG. 11 to the window 33 which is a three-dimensional image file, and selects the window 33. Then, as shown in FIG. 15, the current moves to the window 33, and the window 33 becomes active. Here, since the window 33 corresponds to a three-dimensional image file, a three-dimensional image is drawn in the window 33. (Because of the space limitation, the actual stereoscopic representation by binocular parallax is impossible, so hereafter, In the case of displaying a three-dimensional image, a perspective view will be used instead and will be described).

The processing in this case will be described with reference to FIG. FIG. 16 is a flowchart illustrating the procedure of the image display process according to the present embodiment.

In step S61, a mouse event is obtained by detecting the movement of the mouse and the presence / absence of pressing of the mouse button. In a succeeding step S62, the contents of the mouse event acquired in the step S61 are analyzed. In step S63, as a result of the event analysis in step S62, it is determined whether or not the mouse event is an event related to drawing a window. Here, the event related to the drawing of the window is, for example, a case where the window moves to a window having an active state. If it is determined that it is related to the drawing of the window, the process proceeds to step S64. In step S64, it is determined whether or not the window has three-dimensional image data.
Judgment is made based on the information of No. 1. In this example, file header 5
Since whether or not a three-dimensional image can be displayed is recorded as the information 1, the determination in step S <b> 64 can be performed quickly by referring to this information. These processes may be performed according to the file extension.

If it is determined in step S64 that the file is a three-dimensional image file, the process proceeds to step S65. Step S
At 65, the display driver 6 is controlled to perform three-dimensional display. That is, the screen control unit 9 sets the three-dimensional image data 52
The image drawing unit 7 and the checkered mask pattern drawing unit 8 are controlled based on the obtained three-dimensional image data, and the three-dimensional display 12 performs three-dimensional display at the position of the window. That is, the image drawing unit 7 is notified of the stereoscopic image data to be displayed, the display position, and the size, and the checkered mask pattern drawing unit 8 is notified of the display position and size, so that the stereoscopic image is displayed in the window. be able to. On the other hand, if it is determined in step S64 that the image file of the window does not have three-dimensional image data, the process proceeds to step S66, where a two-dimensional image is displayed by a conventional method.

If it is determined in step S63 that the generated mouse event is not related to the drawing of the window, the process proceeds to step S67, where the two-dimensional data of the three-dimensionally displayed window is obtained using the two-dimensional data of the three-dimensional image. Perform dimensional display.

In steps S65 and S66,
If the window that has shifted to the non-current state performs three-dimensional display, the display of that window may be switched to two-dimensional display.

A plurality of windows may be displayed as shown in FIG. FIG. 17 is an explanatory diagram when the window 33a is activated from the state of FIG. 12 to perform three-dimensional display. The window is active, ie 3
The dimension display window is preferentially displayed by the user.

According to the processing described above, it is determined whether or not the selected object has three-dimensional data. If the selected object has three-dimensional data, the object can be automatically switched to three-dimensional display and displayed. Therefore, the operability in an apparatus capable of performing mixed display of three-dimensional display and two-dimensional display is improved.

When a three-dimensional image is drawn in step S65, the result analyzed in step S62 is naturally reflected. For example, when a new window is opened, when the three-dimensional image drawing unit is smaller than the image portion of the window, an appropriate background is interpolated in the margin.

<Second Embodiment> (1) Outline of Difference from First Embodiment In the first embodiment described above, a checkered mask pattern is formed at an arbitrary position on a screen and with an arbitrary size. Thus, a two-dimensional display and a three-dimensional display can be mixed, thereby providing a user-friendly environment. However, in the device configuration of the first embodiment, the liquid crystal display element, which is a light modulation element for generating a checkered mask pattern, has a matrix structure, and the electrode pattern, the electronic circuit for driving, and the driver software are complicated, resulting in high cost. Tend to be. Also,
Since the light transmittance of the liquid crystal display device itself is poor, an extremely high output backlight is required to transmit the two sets of liquid crystal display devices and display to the user.

On the other hand, in the second embodiment, a two-dimensional display and three-dimensional display over the entire screen are provided by an optical directivity control element which can control the diffuse transmission and the transparent transmission between the optical systems for generating directivity by voltage. A computer system provided with a three-dimensional display for switching dimensional display will be described. That is, the stereoscopic display method of the second embodiment has a configuration in which the two-dimensional display and the three-dimensional display are switched over the entire screen by the light directivity control element.

(2) Description of Switching between Two-Dimensional Display and Three-Dimensional Display in Second Embodiment FIG. 8 is a schematic diagram of a main part of a second embodiment of the present embodiment. Note that the principle of the stereoscopic display method in the second embodiment is the same as that of the cross lenticular system described in the first embodiment, and thus the description of the principle of the stereoscopic display is omitted.

Reference numeral 20 denotes a light directivity control element, which is made of a polymer dispersed liquid crystal (PDLC) and can control whether the incident light is transparently transmitted or diffusely transmitted by an applied voltage as described later with reference to FIG. . That is, when performing three-dimensional display, the transparent control of the light directivity control element 20 is performed.
Direction is given to the illumination light by the cross lenticular method, and the left and right parallax images are observed by the right eye and the left eye of the user to perform stereoscopic display. Conversely, when performing two-dimensional display, two-dimensional display is performed by controlling the diffusion of the light directivity element 20 to cancel the directivity of the directional light beam generated by the cross lenticular method. By controlling the voltage applied to the light directivity control element in this way, it is possible to switch between two-dimensional display and three-dimensional display.

(3) Description of operation of switching principle using PDLC: FIG. 9 is a principle diagram of the light directivity control element 20 composed of a polymer dispersed liquid crystal used in the present embodiment. A transparent electrode 20b is provided inside a transparent substrate 20a such as glass or a plastic film, and is sandwiched between polymers 20c in which liquid crystal molecules 20d are dispersed.

The OFF state where no voltage is applied (FIG. 9
In the case of (A)), the optical axes of the liquid crystal molecules 20d are randomly arranged, the extraordinary light refractive index does not match the refractive index of the polymer 20c, and light is scattered at an interface having a different refractive index. In the ON state (FIG. 9B) to which the voltage is applied, the liquid crystal molecules 2
The optical axis of 0d is arranged in the direction of electrolysis as shown in the figure, and the ordinary light refractive index substantially matches the refractive index of the polymer 20c, so that the incident light is transmitted without scattering.

When a three-dimensional image is displayed on the entire surface of the three-dimensional display device shown in FIG. 8, a voltage is applied to the entire surface of the light directivity control element 20, and the non-scattering state shown in FIG. I do. As a result, the illumination light obtained by using the lenticulars 204 and 203 and the mask pattern 209 is incident on the user's eyes without disturbing its directivity, and stereoscopic vision can be observed.

On the other hand, when displaying a two-dimensional image over the entire surface of the present display device, no voltage is applied to the light directivity control element 20, and the light scattering state shown in FIG.
A two-dimensional image to be displayed on the liquid crystal display device 1 is displayed. At this time, the illumination light from the backlight 3 has directivity until the light enters the light directivity control element 20, but is diffused by the light directivity control element 20 as shown in FIG. Therefore, the directivity of the light beam is disturbed, and observation can be performed as in a normal two-dimensional display.

As described above, by controlling the directivity of incident light using the light directivity control element 20, switching between two-dimensional display and stereoscopic image display is possible with a simple configuration of a spatial light modulator. . The arrangement of the light directivity control element may be any position between the liquid crystal display device 1 and the mask pattern 209.

(4) Description of the Device Configuration of the Second Embodiment FIG. 18 is a diagram showing the device configuration of a computer system according to the second embodiment. In the present embodiment, when displaying an image, the light directivity control element (PDLC) 20 is controlled,
A two-dimensional image and a three-dimensional image (stereoscopic image) are switched and displayed over the entire screen. Reference numeral 20 denotes a directivity control element, which is made of a polymer dispersed liquid crystal (PDLC) and switches display by changing a voltage application state according to a command from a host computer for performing two-dimensional display or three-dimensional display. . 21 turns ON / OFF the voltage supply to PDLC
A PDLC drive circuit that controls the diffusion of illumination light.
Reference numeral 6 denotes a display driver for controlling the entire drawing of the stereoscopic display according to the second embodiment.
3 and 10.

Reference numeral 22 denotes a two-dimensional image and three-dimensional image drawing unit which controls the drawing of data actually drawn on a three-dimensional display, that is, a two-dimensional image or a three-dimensional image combined with stripes which has been conventionally handled. The drawing contents are slightly different from those in the first embodiment as described later. Reference numeral 23 denotes a screen control unit, and the two-dimensional image and three-dimensional image drawing unit 2 described above.
2 and controls and allocates signals to be sent to the PDLC drive circuit. 1
Reference numeral 0 denotes an object analysis unit that determines and analyzes the type of drawing data and sends a signal to the screen control unit 23 described above.

Reference numeral 11 denotes a host computer having the same function as in the first embodiment. However, the second
In the second embodiment, since the two-dimensional display and the three-dimensional display are switched over the entire screen, the switching control and the image drawing method are different from those of the first embodiment.

(5) Description of switching operation between two-dimensional display and three-dimensional display Hereinafter, as described above, mixed display of two-dimensional display and three-dimensional display is performed by using the apparatus for entirely switching between two-dimensional display and three-dimensional display. An easy-to-use computer system that enables the above will be described.

The second embodiment will be described with reference to FIGS. In FIG. 15, the difference from the first embodiment is that the resolution in the vertical direction of the screen of the two-dimensional display portion according to the second embodiment is half that of the first embodiment. In FIG. 15, the fact that the resolution is reduced to half is not reflected in FIG. The operation method of the computer environment of the second embodiment, that is, the GUI environment, is 3
A two-dimensional image file can be handled in the same manner as in the first embodiment. Here, the difference between the first embodiment and the signal processing method will be described.

FIG. 19 is a flowchart showing the procedure of the drawing process according to the second embodiment. Hereinafter, a mouse event which is a part of the event processing will be described with reference to a flowchart of FIG. In FIG. 19,
The same processing steps as those in FIG. 16 are denoted by the same step numbers, and detailed description is omitted.

If it is determined in step S64 that the window to be controlled has three-dimensional data, the process proceeds to step S70. In step S70, three-dimensional image data is read from the three-dimensional image file 50 corresponding to the window, displayed on the window, and
The applied voltage is controlled (ON state) so that the directional luminous flux passing through the DLC is transmitted as it is, so that stereoscopic viewing is possible. Then, the process proceeds to step S71, and for the two-dimensional display image, the same stripe image is continuously displayed by the number of viewpoints 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, for example, when the number of viewpoints is two, the vertical resolution of the two-dimensional image is が, but the two-dimensional image can be observed almost as usual.

On the other hand, if it is determined in step S64 that the file of the window does not have three-dimensional data, the flow advances to step S72. In step S72, control is performed (OFF state) to diffuse the PDLC and eliminate the directivity of the luminous flux of the illumination light by the cross lenticular method. At this time, the display of all displayed windows is switched to a normal two-dimensional display.

If it is determined in step S63 that the mouse event is not related to window drawing, the flow advances to step S73. In step S73, the PDLC is subjected to diffusion control (OF
(F state), and the display of all windows is switched to a normal two-dimensional display.

As described above, the current window is 2
If the object is a three-dimensional display, the PDLC is diffusion-controlled so that the conventional three-dimensional display (stereoscopic viewing) is not performed.
It can be used in the same way as a computer that only displays dimensions. When the current window moves to an object that can be three-dimensionally displayed, the PDLC is transparently controlled to perform three-dimensional display. Then, for a portion other than the three-dimensional object, almost normal two-dimensional display can be performed although the resolution in the vertical direction is deteriorated.

Further, the two-dimensional display portion at this time becomes a display having a normal resolution when the user acts on the computer as an event. As described above, in the mixed display with the three-dimensional display, even in the two-dimensional display with some deterioration, it is possible to determine the position, type, name, and the like of the object. Since the display is switched to a two-dimensional display, there is no practical problem.

As described above, according to the second embodiment, the configuration for partially displaying the checkered pattern is not required, so that the control is simplified.

<Third Embodiment> In the second embodiment described above, the configuration in which two-dimensional and three-dimensional switching is performed over the entire screen has been described.
0 is formed in a matrix, and a predetermined area on the element is not scattered by applying a voltage partially, and the other is scattered in a light transmitting state to partially display a three-dimensional image. 1
The same processing as in the embodiment can be performed.

FIG. 20 shows a display state (A) of a display image displayed on the liquid crystal display device 1 when a three-dimensional image is partially displayed.
FIG. 4 is a diagram illustrating a display state (B) of the light directivity control element 2. As shown in FIG. 20A, when a stereoscopic image is displayed in the area 26, the horizontal stripe images R3L4R5... L8 are displayed on the liquid crystal display device 1 as described above, and a normal two-dimensional image is displayed in other portions. I do. At this time, a voltage is applied to the light directivity control element 2 only to a region 27 (hatched portion in the figure) corresponding to the region 26 of the liquid crystal display device 1 so as to be in a non-scattering transmission state. Make it scattered. Thereby, a stereoscopic image can be partially displayed.
That is, by partially forming the non-diffusion area by the above method, the mixed display of the two-dimensional image and the three-dimensional image can be controlled by the same control procedure as in the first embodiment.

FIG. 21 is a diagram for explaining another example of a method for displaying a partially three-dimensional image. This display method is a display method capable of reducing crosstalk between a stereoscopic image and a two-dimensional image and observing a favorable stereoscopic image. As shown in FIG. 9A, the light directivity control element 2 scatters incident light in random directions when no voltage is applied. Therefore, the vicinity of the boundary between the light scattering portion and the non-scattering transmission portion (the portion indicated by a cross in FIG. 21B)
The light beam scattered by the light scattering at the point also enters the region 26 of the liquid crystal display device 1 and illuminates the horizontal stripe image. For this reason, the illumination light is also emitted to the non-corresponding eye of the horizontal stripe image, and becomes crosstalk light. In order to prevent this, in the present embodiment, black display is performed as a frame of the image inside the area where the stereoscopic image is displayed to prevent crosstalk. Here, an example in which the image frame is displayed with a width corresponding to one pixel inside the region 26 is illustrated, but the present invention is not limited to this, and a width of several pixels may be used. Further, in the image frame for preventing crosstalk, for example, “3D display” and the like, the type of image displayed in this area, the file name, and the like can be displayed.

This display method is a particularly effective crosstalk reduction method when the light directivity control element is arranged at a position distant from the liquid crystal display device.

<Fourth Embodiment> (1) Outline of Difference from Second Embodiment In the above-described second embodiment, a light directivity control element (PDLC) is provided between a liquid crystal display unit and a mask pattern. By controlling the directivity of the light directivity control element to be diffuse or transparent, switching between two-dimensional display and three-dimensional display is performed. Although the two-dimensional and three-dimensional display can be easily performed by using the light directivity control element 2, a slight scattering occurs in the ON state (transparent and three-dimensional display) of the light directivity control element. This causes crosstalk of three-dimensional images.

On the other hand, in the fourth embodiment, a three-dimensional display for switching between two-dimensional display and three-dimensional display over the entire screen is provided by mechanically controlling the movement of an optical element for generating directivity. Computer system is described.

(2) Description of Optical System for Switching between Two-Dimensional Display and Three-Dimensional Display in Fourth Embodiment FIGS. 22A and 22B are schematic views of a main part of the fourth embodiment. FIG. 23 is a perspective view of the stereoscopic image display device of the present embodiment. In FIG. 23, a cross-sectional view along a horizontal plane indicated by line AA is a line corresponding to the scanning line shown in FIG. 22A and BB (here, a scanning line one scanning line below the scanning line indicated by line AA). FIG. 22B is a cross-sectional view along a horizontal plane indicated by a line (showing a line).

In FIGS. 22A and 22B, 40 and 4
Reference numeral 1 denotes a lenticular in which a number of cylindrical lenses are arranged. Reference numeral 42 denotes a lenticular moving unit including a mechanical unit (not shown) for mechanically controlling the lenticular 40 to move in the depth direction of the three-dimensional display in the depth direction and a drive circuit (not shown).

Next, before describing the switching to the two-dimensional image display which is a feature of the third embodiment, the case of displaying the three-dimensional image will be described. As shown in FIG. 22A, the illuminating light emitted from the backlight 3
The mask 2 having the center of the opening at a position shifted from the optical axis of the cylindrical lens by a predetermined position and the cylindrical lens of the lenticular 41 are used.
The transmitted light beam 07 is separated and incident on the right eye ER of the user. The light beam incident on the right eye ER is a lenticular 41
Transmission type liquid crystal display device (LCD)
1) The image is modulated by the image displayed in 1 (here, the right parallax image R), and a linear right parallax image enters the right eye ER.
Similarly, a linear left parallax image L is incident on the left eye EL as shown in FIG. 22B for a light beam along a cross section corresponding to a scanning line one scanning line below one scanning line in FIG. 22A.

At this time, as can be seen from FIG.
The mask opening in the cross section of A and the mask opening in the cross section of FIG. 22B are formed complementarily, and the mask pattern 207 has an opening and a light-shielding portion in a checkered pattern. The liquid crystal display device 1 (LCD1) displays a horizontal stripe image in which the parallax images R and L corresponding to the respective apertures are alternately vertically combined. Therefore, the user can observe a stereoscopic image by viewing a parallax image corresponding to each eye with each eye for each operation line. At this time, the convex vertex of the cylindrical lens of the lenticular 40 is in close contact with the mask 2. That is, since the main plane of the lenticular coincides with the display surface of the mask pattern 207, the influence of the power can be almost ignored, and the directivity of the lenticular 42 facing the mask 2 need not be considered.

Here, the horizontal stripe image displayed on the liquid crystal display device 1 will be described. As shown in FIG. 24A,
At least two parallax images R and L are divided into horizontal stripes, and stripe pixels created from the right parallax image R;
Stripe pixels created from the left parallax image are alternately arranged, for example, every other scan line, a right parallax image R1 on the first scan line, a left parallax image L2 on the second scan line, and a right parallax on the third scan line. Are combined with each other to form one horizontal stripe image. The image data of the horizontal stripe image created in this way is input to the LCD 1 drive circuit 5, and the horizontal stripe image is displayed on the liquid crystal display device 1 so that a stereoscopic image can be viewed according to the above principle. Here, the case of alternately synthesizing every other scanning line has been described, but it is needless to say that the synthesizing can be performed for each of a plurality of scanning lines.

Further, as shown in FIG. 24B, the first scanning line has a left parallax image L1, the second scanning line has a right parallax image R2, and a third parallax image R2.
It is also possible to use a horizontal stripe image (second synthesized stripe image) synthesized with the left parallax image L3... As the scanning line. In that case, a mask pattern in which the openings and light-shielding portions formed in a checkered pattern of the mask pattern 207 when the horizontal stripe image (first composite stripe image) shown in FIG. 24A is used may be used.

Next, the case of displaying a two-dimensional image will be described. FIG. 25 is a vertical sectional view of the stereoscopic image display device of the fourth embodiment as viewed from the side. The control unit (not shown)
In response to a signal for switching to a mode for displaying a two-dimensional image,
A control signal is issued to the lenticular moving unit 42 to move the lenticular 40 to a position separated by a predetermined distance from a state in which the lenticular 40 is in close contact with the checkered mask 207 in FIGS. At this time, the two-dimensional image and three-dimensional image drawing unit 7 draws a normal two-dimensional image, and the liquid crystal display device 1 displays a normal two-dimensional image.

In this embodiment, the pitch Pt of the cylindrical lens on the surface 40b of the lenticular 40 facing the mask and the pitch Pt of the mask pattern 207 in the vertical direction.
m is equal to and slightly larger than the pixel pitch 1 of the liquid crystal display device 1. The lens position is tt> 2fb, where fb is the focal length of the cylindrical lens on the surface 40b facing the mask of the lenticular 40, and tt is the distance between the vertex of the cylindrical lens on the surface 40b facing the mask of the lenticular 40 and the mask 207. The lenticular 40 is moved to the position. At this time,
If the distance tt ′ from the user's main plane of the lens facing the mask to the image display surface of the liquid crystal display device 1 is preset to 1 / tt ′ ≧ 1 / fb−1 / tt, The opening of the mask is reduced between the image display surface of the liquid crystal display device 1 and the lenticular 40 to form an image. Therefore, the lenticular 41 is applied to the scanning lines displaying L and R respectively in the three-dimensional display.
In this case, both images of the apertures to be provided with directivity in the directions of the left and right eyes by the lenses are formed in portions where the user can see the scanning lines. Therefore, light passing through each scanning line on the image display surface travels in both left and right directions and is guided to both eyes, so that two-dimensional display is possible.

In this embodiment, the backlight 3 and
Checkered mask pattern 20 having predetermined openings and light-shielding portions
Although FIG. 26A shows a case where the elements are composed of individual elements, they can be integrated as shown in FIG. 26A. Light from a light source 43a such as a fluorescent lamp is incident on a light guide 43c made of a transparent plastic material such as PMMA from an end face by an appropriate reflection mirror 43b, and guided inside. At this time, the light guide 4
It is also possible to form a reflector on the back surface 43d of 3c. Then, the guided light passes through an opening 43e formed by patterning a reflective material formed on the surface of the light guide 43c, is emitted, is given directivity by a lenticular, and enters the user's pupil. By doing so, a stereoscopic image display device with high light use efficiency can be configured.

Further, as shown in FIG. 26B, a light emitting pattern equivalent to the mask pattern 207 is formed on the display surface by using a self-luminous display element 44 such as a CRT, and a lenticular light is applied to the patterned emission light. It is also possible to give directivity with. At this time, it is desirable that the self-luminous display element 44 and the liquid crystal display device 1 perform display in synchronization with one pixel or one scanning line.

Also, a mechanism for moving the mask substrate is provided instead of the mechanism for moving the lenticular, and a space is provided between the mask substrate 207 and the backlight 3 for three-dimensional display, and two-dimensional display is performed. In some cases, the mask substrate 207
May be moved so as to satisfy the above relational expression.

(3) Description of the Device Configuration of the Fourth Embodiment FIG. 27 is a diagram showing the device configuration of a computer system according to the fourth embodiment. In the present embodiment, as described above, when displaying an image, the two-dimensional image and the three-dimensional image (stereoscopic image) are switched and displayed over the entire screen by controlling the lenticular and checkerboard mask intervals. Reference numeral 40 denotes a lenticular, which can be controlled to move back and forth by a predetermined means. The lenticular moving unit 42 controls the movement of the lenticular, and controls the distance between the lenticular 40 and the checkered mask 207 by moving the lenticular 40. The lenticular moving unit 42 moves the lenticular 40 according to a command from the host computer corresponding to the two-dimensional display or the three-dimensional display, and switches the two-dimensional / three-dimensional display by changing the distance between the lenticular 40 and the checkered mask 207. Do.

Reference numeral 6 denotes a display driver for controlling the entire drawing of the three-dimensional display of the fourth embodiment, which is the same as that of the second embodiment. Reference numeral 45 denotes a screen control unit which controls and allocates signals to be sent to the two-dimensional image and three-dimensional image drawing unit 22 and the lenticular moving unit.

(4) Description of Switching Operation between Two-Dimensional Display and Three-Dimensional Display The difference between the switching operation of the second embodiment and the fourth embodiment is that the signal from the double-sided control unit 45 is
2 and the signal is used to control the distance between the lenticular 40 and the checkered mask 207 as described above, thereby switching between two-dimensional display and three-dimensional display. Other processing, for example, event processing and the like are the same as in the second embodiment.

As described above, by controlling the distance between the lenticular and the checkered mask according to the command from the host computer, the same effect as in the second embodiment can be obtained. Further, since the light does not pass through a mask pattern of a liquid crystal display, a polymer dispersed liquid crystal, or the like, the attenuation of illumination light is small, and a bright image can be obtained with low power consumption.

<Fifth Embodiment> The fifth embodiment operates in the GUI environment described in the conventional example, and uses a parallax barrier system described in the conventional example as a three-dimensional display.
A description will be given of a computer system in which the parallax barrier is formed of liquid crystal and enables two-dimensional display and three-dimensional display.

(1) In the case of using a modulation element having a matrix structure The difference from the first embodiment is that a parallax barrier pattern is used instead of drawing a checkerboard mask pattern on the liquid crystal display device 2 except for an optical system for stereoscopic display. The point to draw. FIG. 28 is a block diagram showing a configuration of a computer system according to the fifth embodiment. In FIG. 28, 4
Reference numeral 5 denotes a parallax barrier pattern drawing unit that draws a parallax barrier at an arbitrary position and an arbitrary size.
With such a configuration, similar to the first embodiment, a three-dimensional display of an arbitrary size is performed at an arbitrary position, and a user-friendly user interface can be provided.

(2) When a spatial light modulator having a stripe structure is used For the same purpose as in the second embodiment, an electronic circuit for controlling the spatial light modulator, driver software, and the spatial light modulator itself are simplified. In addition, two-dimensional display and three-dimensional display are performed using a spatial light modulator having a stripe structure. It is apparent that the same effect as that of the second embodiment can be obtained by controlling the spatial light modulator having the stripe structure instead of the light directivity control element of the second embodiment.

Further, the same effect as that of the second embodiment can be obtained even when the checkerboard mask pattern of the stereoscopic display configuration of the first embodiment is turned on / off.

(3) Description of Brightness Correction When performing three-dimensional display, brightness may be corrected based on the number of parallax images described in the file header of the three-dimensional image data. That is, as described in FIG.
When the number of viewpoints (the number of parallax images) increases, the aperture ratio of the parallax barrier / pattern decreases, and the observed image becomes dark. Therefore, the voltage applied to the backlight 3 may be controlled to increase as the number of viewpoints increases, so as to cover a decrease in luminance due to a decrease in the aperture ratio. This may be achieved by, for example, holding a table indicating the relationship between the number of viewpoints and the voltage applied to the backlight, and changing the voltage applied to the backlight according to the number of viewpoints.

<Sixth Embodiment> In each of the above-described embodiments, the user works on each object to forcibly switch between two-dimensional and three-dimensional. Such a configuration cannot cope with a case where the user does not want to observe three-dimensional images or a case where the user always wants to observe three-dimensional images. In the sixth embodiment, the user arbitrarily selects 3
The state of the dimensional display can be set.

FIG. 29 is a view showing a display state of a three-dimensional display screen for explaining the operation method of the sixth embodiment.
As shown in the figure, by moving the pointer 35 with the mouse and performing a pull-down operation from the menu bar (selecting “option”, which is an entry of the menu bar 32 in the figure), “auto”, “2D” Alternatively, either “3D” can be selected. With these selections, the display state is automatically changed by the object selected as in the first embodiment or the second embodiment (“auto” in the entry of “option”).
o)) does not perform three-dimensional display but only two-dimensional display (“op
"2D" in the entry "tion"), the current is 2
3D display is continued even after moving to a dimensional object ("o
“3D” in the “ption” entry. These processes are realized, for example, by appropriately setting the branch conditions in steps S63 and S64 in the flowchart of FIG. 16, and details thereof will be apparent to those skilled in the art.

As described above, by adopting the configuration described in the sixth embodiment, it is possible to set a display environment suitable for the user's preference.
A convenient environment can be provided.

<Seventh Embodiment> In a stereoscopic display for observing a stereoscopic image by using the parallax between the image for the right eye and the image for the left eye, a contradiction occurs between the convergence angle of both eyes and the focal length of the eyes. Some users complain of physiological discomfort due to long-term observation because of the fact that the amount of parallax or the amount of parallax is not appropriate.

In the seventh embodiment, the user can arbitrarily set the observation time of the three-dimensional image so as to reduce or eliminate the physiological discomfort. FIG. 30 is a diagram illustrating an operation environment according to the seventh embodiment. By the pull-down operation described with reference to FIG. 29, “option” which is an entry of the menu bar is selected, and “option” is further selected.
If "3Dtime" of the entry "n" is selected, a dialog 38 as shown in FIG. 30 is displayed.
Wait for user input. This dialog is the same as the operation of a dialog generally performed. When the user wants to set a set time, click “set time”, set an arbitrary time in the input box 39 with a keyboard, and click an “ok” button. By clicking, the three-dimensional display time can be set. When the user wants to stop displaying the three-dimensional display for a limited time, he or she can click "unlimited display" with the mouse. When it is desired to stop the three-dimensional display, the set time may be set to 0 second.

When a predetermined time has elapsed, a warning may be issued to the user, and means for confirming the user's intention or the elapsed time of the three-dimensional display may be displayed in a window displaying the three dimensions.

As described above in the seventh embodiment,
The user can arbitrarily set the display time of the three-dimensional display, so that physiological discomfort caused by long-term observation can be reduced or eliminated.

<Eighth Embodiment> Two-dimensional display and 3
Although the computer system having the three-dimensional display that performs mixed display of the dimensional display has been described, in the present embodiment, the user moves the pointer operated by a pointing device such as a mouse to an arbitrary position, so that the icon or the window can be displayed. Is often selected to act on the object. In the above description, the case where the position of the pointer is located on an object (especially a window) displayed three-dimensionally has not been described.

In the eighth embodiment, a case where the pointer is arranged in a three-dimensionally displayed window will be described with reference to FIGS. FIG. 15 shows a case where the pointer 35 is located outside of the three-dimensional drawing part.
The two-dimensional display pointer is present during the two-dimensional display, and the user feels strange and has poor operability. In the eighth embodiment, as shown in FIG. 31, when the pointer 35 is located at the three-dimensional drawing portion, the user switches the display from the three-dimensional display to the two-dimensional display by any of the above-described means to give the user a sense of discomfort. It was not given. At this time, the shape of the pointer (in the drawing, a cross shape) may be changed as shown in FIG. 32 in order to explicitly express the presence of the pointer during three-dimensional rendering.

Since the coordinate values of the three-dimensionally displayed window and the coordinate values of the pointer are known by the system, it can be easily determined whether or not the pointer has entered the three-dimensionally displayed window. The control of the eighth embodiment can be achieved by adding this determination result to the branch condition in step S63.

As described in the eighth embodiment, when the pointer is located at the three-dimensional drawing portion, the user is provided with an environment which is easy to use by displaying the pointer two-dimensionally. If the user desires to perform three-dimensional display even when the pointer is on the three-dimensional drawing unit, the user can arbitrarily customize the three-dimensional display in the same manner as in the sixth embodiment.

<Ninth Embodiment> In a system for performing a mixed display of two-dimensional display and three-dimensional display, a user may move a two-dimensional display object to an arbitrary position on a screen for a certain purpose. Similarly, it is apparent that the object (window) of the three-dimensional display may be moved. However, in the first embodiment, at the same time as moving the three-dimensional window, it is necessary to control the drawing of the checkered mask pattern so as to follow the movement. Further, in the third embodiment, it is necessary to control the movement of the three-dimensional window and the movement of the transmission part of the PDLC at the same time. Similarly, in the fifth embodiment, drawing control of a parallax barrier pattern is required. If the control of the three-dimensional display is performed simultaneously with the drawing of the three-dimensional image, the load on the computer system increases.

Therefore, in the ninth embodiment, when moving (dragging) a three-dimensional object, the entire screen is switched to two-dimensional display for the purpose of reducing the load on the computer system of this embodiment, and dragging is performed. Is completed, processing for returning to three-dimensional display is performed again.

The ninth embodiment will be described with reference to FIGS. 15, 33, and 34. FIG. 33 is a diagram illustrating a state in which the window 33 is being moved by a drag operation.
Note that the drag operation is usually performed by pressing a mouse (not shown) button and moving the pointer while keeping the state (click state). If you want to stop dragging, release the mouse button and release the clicked state. In the state of FIG.
The three-dimensionally rendered portion is displayed two-dimensionally.
FIG. 34 is a diagram illustrating a state when the drag operation is completed from the state of FIG. 33. At this time, the drawing of the window has returned to the three-dimensional display. In the control according to the ninth embodiment, the entire area of the display screen is reduced by two if the drag operation of the window is detected by, for example, the event analysis in step S62 of the flowchart of FIG.
What is necessary is just to add control so that it may be set to a dimensional display. Or,
By setting the branch condition in step S63, the window in which the drag operation has occurred may be switched to the two-dimensional display.

With the above processing, for example, in the first embodiment, it is possible to control so that the checkered mask pattern is not drawn over the entire screen during dragging. In the third embodiment, during the dragging, the voltage applied to the PDCL is turned off over the entire screen, that is, the diffusion surface is set. Further, in the fifth embodiment, the parallax barrier pattern is not drawn.

As described above, when the object of the three-dimensional display is being dragged, the entire screen is switched to the two-dimensional display, thereby reducing the processing load of hardware and software. Further, when the user is dragging the window, it is only necessary to know where to place the dragged object. Therefore, there is no practical problem even if two-dimensional display is performed during the dragging.

As is clear from the above, according to each of the above embodiments, it is possible to determine whether or not the object is a three-dimensional object, and control the switching between two-dimensional display and three-dimensional display based on the result of the determination. Further, according to the sixth and seventh embodiments, since the user can make desired settings for the three-dimensional display, a computer system that provides comfortable two-dimensional display and three-dimensional display is provided.

A computer system having a stereoscopic display utilizing binocular parallax other than the above-described embodiment and having a stereoscopic display capable of mixing or switching between two-dimensional and three-dimensional can be configured in the same manner. Similar effects can be obtained. Furthermore, in the above description, although the window was mainly described as an object, the same configuration holds for objects such as other icons.
A similar effect is obtained.

The present embodiment can be applied to a system composed of a plurality of devices (for example, a host computer, an interface device, a reader, a printer, etc.), but it can be applied to a single device (for example, a copier, Facsimile machine, etc.).

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 provide a 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 in a function expansion board inserted into the computer or a function expansion unit connected to the computer, based on the instruction 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.

[0136]

As described above, according to the present invention, it is possible to recognize whether or not three-dimensional display is possible for each object, and it is possible to appropriately control the display of the object.

[0137]

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating the principle of a cross lenticular system used in a first embodiment.

FIG. 2 is a diagram illustrating the principle that left and right parallax images are horizontally separated and observed by both eyes of a user.

FIG. 3 is a schematic side view of a cross section in the vertical direction of the three-dimensional image display device based on the cross lenticular system shown in FIG. 1;

FIG. 4 is a side view of a vertical cross section of the stereoscopic image display device shown in FIG.

FIG. 5 is a diagram illustrating a three-dimensional image display device that enables mixed display by switching between two-dimensional display and three-dimensional display.

6 is a diagram illustrating a stereoscopic image display method by the stereoscopic display device shown in FIG.

FIG. 7 is a diagram illustrating a method of displaying a three-dimensional image and a two-dimensional image in a mixed manner by the stereoscopic display device shown in FIG. 5;

FIG. 8 is a schematic diagram of a main part of a second embodiment of the present embodiment.

FIG. 9 is a principle diagram of a light directivity control element 20 composed of a polymer dispersed liquid crystal used in the present embodiment.

FIG. 10 is a block diagram illustrating a configuration of a computer system according to the first embodiment.

FIG. 11 is a diagram showing a display example of a GUI operating in the embodiment.

FIG. 12 is a diagram illustrating a display example of a GUI displaying a plurality of windows in the present embodiment.

FIG. 13 is a flowchart showing a flow of processing of an application operating in the GUI environment described above.

FIG. 14 is an explanatory diagram illustrating a structure of three-dimensional image data in the present embodiment.

FIG. 15 shows a partial 3 in the GUI environment of the present embodiment.
It is a figure showing the state where switching to dimensional display was performed.

FIG. 16 is a flowchart illustrating a procedure of an image display process according to the embodiment.

17 is an explanatory diagram when the window 33a is activated from the state of FIG. 12 to perform three-dimensional display.

FIG. 18 is a diagram illustrating an apparatus configuration of a computer system according to a second embodiment.

FIG. 19 is a flowchart illustrating a procedure of a drawing process according to the second embodiment.

FIG. 20 is a diagram illustrating a display state (A) of a display image displayed on the liquid crystal display device 1 and a display state (B) of the light directivity control element 2 when a stereoscopic image is partially displayed.

FIG. 21 is a diagram illustrating another example of a method of partially displaying a stereoscopic image.

FIG. 22A is a diagram illustrating a schematic configuration of a main part of a fourth embodiment.

FIG. 22B is a diagram showing a schematic configuration of a main part of the fourth embodiment.

FIG. 23 is a perspective view of a stereoscopic image display device according to a fourth embodiment.

FIG. 24A is a diagram illustrating a horizontal stripe image displayed on a liquid crystal display device.

FIG. 24B is a diagram illustrating a horizontal stripe image displayed on the liquid crystal display device.

FIG. 25 is a vertical sectional view of the stereoscopic image display device according to the fourth embodiment as viewed from the side.

FIG. 26A is a diagram illustrating a configuration in which a checkered mask pattern and a backlight are integrated.

FIG. 26B is a diagram illustrating a configuration in which a mask pattern is formed using a self-luminous display element.

FIG. 27 is a diagram illustrating an apparatus configuration of a computer system according to a fourth embodiment.

FIG. 28 is a diagram illustrating an apparatus configuration of a computer system according to a fifth embodiment.

FIG. 29 is a diagram illustrating a display state of a stereoscopic display screen according to a sixth embodiment.

FIG. 30 is a diagram illustrating an operation environment according to a seventh embodiment.

FIG. 31 is a diagram illustrating a display example according to the eighth embodiment.

FIG. 32 is a diagram showing another example of display according to the eighth embodiment.

FIG. 33 is a diagram illustrating a state in which a window 33 is being moved by a drag operation.

FIG. 34 is a diagram illustrating a state when the drag operation is completed from the state of FIG. 33;

FIG. 35 is a hierarchical diagram of a typical computer system using a GUI as an operating system.

FIG. 36 is a basic configuration diagram of a conventional stereoscopic image display device.

FIG. 37 is a configuration diagram of a display unit of a stereoscopic image display device including a conventional liquid crystal panel display and an electronic barrier.

FIG. 38 is a diagram illustrating a difference in a parallax barrier pattern formed on the electronic parallax barrier according to a difference in the number of viewpoints.

FIG. 39 is a diagram illustrating an electronic parallax barrier capable of generating a barrier stripe pattern only in a partial region.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location G09G 5/14 G09G 5/36 510V 5/36 510 G06F 15/62 350K

Claims (27)

[Claims] 1. A display control device capable of two-dimensional display and three-dimensional display, comprising: determination means for determining whether an object to be rendered has three-dimensional image data; Object is 3
A display control device, comprising: three-dimensional display means for performing three-dimensional display on the object to be drawn when it is determined that the object has two-dimensional image data. 2. The three-dimensional display means displays a composite image in which at least two parallax images are cut in a stripe shape and arranged alternately, and performs three-dimensional display by controlling a stripe-shaped aperture. The display control device according to claim 1. 3. A window display means for displaying a plurality of windows on one screen, and a control means for executing the determination means and the three-dimensional display means on an object corresponding to a specified one of the plurality of windows. The display control device according to claim 1, further comprising: 4. The display control device according to claim 3, further comprising a two-dimensional display unit that performs two-dimensional display on a window in a non-designated state of the plurality of windows. 5. The three-dimensional display means displays, in a corresponding window, a composite image in which at least two parallax images are cut in a stripe shape and arranged alternately, and controls a stripe-shaped opening at a display position of the window. The display control device according to claim 3, wherein the display control device performs three-dimensional display. 6. The file of the object to be rendered includes rendering information indicating whether or not the file includes three-dimensional image data for performing three-dimensional display in a header portion of the file. The display control device according to claim 1, wherein it is determined whether or not the object to be drawn has three-dimensional image data based on the drawing information. 7. The three-dimensional display means displays, in a corresponding window, a composite image in which at least two parallax images are cut in a stripe shape and arranged alternately, and a stripe-shaped opening is formed in the whole of one screen. The two-dimensional display means displays the two-dimensional image data of the object to be drawn in alignment with the stripe-shaped opening so that the same image can be observed by both eyes. The display control device according to claim 3, wherein: 8. The two-dimensional display means forms a striped image by chopping a two-dimensional image into stripes, and displays at least two of the same stripe-shaped images continuously in the horizontal direction of the screen. The display control device according to claim 7, wherein: 9. The image processing apparatus according to claim 1, further comprising adjusting means for adjusting display brightness of the striped image based on the number of parallax images when controlling the striped image and the striped aperture. Item 3. The display control device according to item 2. 10. The display control device according to claim 1, further comprising setting means for setting a three-dimensional display time in said three-dimensional display means to a desired time. 11. A user can arbitrarily decide whether to always perform three-dimensional display of a three-dimensionally displayable part or to always perform two-dimensional display of a three-dimensionally displayable part, regardless of the designated state of each of the plurality of windows. The display control device according to claim 3, further comprising a setting unit configured to set the display control. 12. The apparatus according to claim 1, wherein the determination unit determines whether the object to be rendered has three-dimensional image data based on an extension added to a file of the object to be rendered. 2. The display control device according to 1. 13. A drawing means for drawing a composite image in which at least two parallax images are cut in a stripe shape and arranged alternately in the three-dimensional display area, and illuminating the composite image so as to enable three-dimensional observation. Lighting means for supplying illumination light via a checkered mask pattern and two lenticulars whose generatrix directions are orthogonal to each other, wherein the lighting means applies the checkered mask pattern to a portion corresponding to the composite image. The display control device according to claim 1, further comprising: a control unit configured to perform three-dimensional display of the three-dimensional display area by being formed. 14. The display means draws a composite image in which left and right stripe parallax images are alternately arranged in the three-dimensional display area, and arranges the same image in two consecutive stripes in another part to combine the two. A drawing unit for drawing an image; and a lighting unit for supplying lighting light through a checkered mask pattern and two lenticules whose generatrix directions are orthogonal to each other so as to illuminate the composite image so as to be three-dimensionally observable. The display control device according to claim 1, wherein: 15. The display means has control means for controlling the presence / absence of the entire checkered mask pattern, and when there is no three-dimensional display area on the display screen, the drawing means Is the normal 2 over the entire display screen.
15. The display control device according to claim 14, wherein the control unit performs a two-dimensional display and sets the checker-like mask pattern to be absent. 16. The display device according to claim 1, further comprising a removing unit configured to remove a directivity of the illumination light from the illumination unit at an arbitrary timing, and when there is no three-dimensional display area on the display screen, The drawing means is a normal 2 over the entire display screen.
15. The display control device according to claim 14, wherein the removing unit removes the directivity of the illumination light while performing the two-dimensional display. 17. The display unit includes a control unit that controls the presence / absence of directivity of the illumination light by controlling an interval between the checkered mask pattern and the lenticular, and a three-dimensional display on the display screen. If the display area does not exist, the drawing means performs the normal 2
15. The display control device according to claim 14, wherein the control unit changes the adultery and makes the illumination light have no directivity while performing dimensional display. 18. The illumination control unit includes a removing unit that removes the directivity of the illumination light in a desired area, and the control unit removes the directivity by the directivity removing unit from the stereoscopic display area. By validating in other parts,
The display control device according to claim 13, wherein three-dimensional display of the three-dimensional display area is performed. 19. The display device according to claim 19, wherein when the pointer indicating the object on the display screen is located in a three-dimensional display area in three-dimensional display, the three-dimensional display area is switched to two-dimensional display. The display control device according to claim 1. 20. The display control device according to claim 19, wherein in the display unit, when the pointer is in the three-dimensional display area, the shape of the pointer is changed. 21. The display device according to claim 19, wherein: a window including the object being displayed three-dimensionally is dragged.
The display control device according to claim 1, wherein the object is displayed two-dimensionally during the drag operation. 22. A control method of a display device capable of two-dimensional display and three-dimensional display, comprising: a determination step of determining whether an object to be rendered has three-dimensional image data; The object to be drawn is 3
A three-dimensional display step of performing three-dimensional display on the object to be drawn when it is determined that the object has two-dimensional image data. 23. A window display step of displaying a plurality of windows on one screen, and a control step of executing the determination step and the three-dimensional display step on an object corresponding to a designated window among the plurality of windows. The display control method according to claim 22, further comprising: 24. The display control method according to claim 23, further comprising a two-dimensional display step of performing two-dimensional display on a window in a non-designated state of the plurality of windows. 25. A computer-readable memory storing a control program for controlling a display device capable of two-dimensional display and three-dimensional display, wherein a determination is made as to whether or not the object to be rendered has three-dimensional image data. The code of the process, and the object to be drawn is 3
A code for a three-dimensional display step of performing three-dimensional display on the object to be drawn when it is determined that the object has three-dimensional image data. 26. A code for a window display step of displaying a plurality of windows on one screen, and executing the determination step and the three-dimensional display step on an object corresponding to a designated window among the plurality of windows. 26. The computer readable memory of claim 25, further comprising control step code. 27. The computer-readable memory according to claim 26, further comprising a code of a two-dimensional display step of performing two-dimensional display on a window in a non-designated state of the plurality of windows.