JP3753763B2 - Apparatus and method for recognizing 3D image - Google Patents

Description

[0001]
[Industrial application fields]
The invention disclosed in this specification relates to a display device and a display method for displaying various information. In particular, the present invention relates to a display device and a display method capable of recognizing different images by a plurality of observers. For example, the present invention relates to a display device and a display method capable of independently viewing a plurality of images displayed on the same screen by a plurality of observers. The present invention also relates to an apparatus and a display method for selectively recognizing only specific information from among a plurality of images displayed simultaneously. The present invention also relates to an apparatus and a display method that can selectively view only specific information. The present invention also relates to a display device and a display method that can make an image recognized by an observer a three-dimensional image.
[0002]
[Prior art]
Conventionally, techniques for displaying different images on the same screen are known. For example, there are known a method of dividing one screen and displaying a plurality of television programs at the same time, and a method of displaying a plurality of images superimposed on one screen.
[0003]
In the former method, since individual images are displayed independently, a large number of programs and images can be viewed relatively easily. However, the latter method has a problem that it becomes very difficult to see because a plurality of images overlap.
[0004]
In both methods, a plurality of images are displayed at the same time, and the viewing target must be selected on the viewing side.
[0005]
This is a problem when a plurality of different screens are viewed simultaneously by a plurality of people. For example, the above method cannot be used when displaying an image that is visible to an observer A and invisible to an observer B.
[0006]
A technique for displaying a three-dimensional image (also referred to as a stereoscopic image) as an image is known. (See Industrial Books, Chihiro Masuda, 3D Display, first edition on May 25, 1990)
[0007]
However, in the above-described technology for simultaneously viewing different images by a plurality of people, a technology capable of viewing a three-dimensional image is not known.
[0008]
[Problems to be solved by the invention]
An object of the invention disclosed in this specification is to provide a configuration in which a plurality of observers can independently see different images displayed on the same screen. That is, it is an object to provide a configuration in which images displayed on the same screen can be separately selected and viewed. It is another object of the present invention to provide a configuration that can make each of these images a three-dimensional image. It is another object of the present invention to provide a display method that solves such problems.
[0009]
[Means for Solving the Problems]
One of the inventions disclosed in this specification is:
A display device in which each of a plurality of observers can see a different image,
Means for displaying different images on the same screen;
Means for selecting the plurality of images for each observer;
Means for three-dimensional display of an image visible to each observer;
It is characterized by having.
[0010]
A specific example of the above configuration is shown in FIGS. The configuration shown in FIG. 3 forms a three-dimensional image (stereoscopic image) by the control circuit 511 shown in detail in FIG. 1 and the integrated liquid crystal panel 507 shown in FIG. By using both the selection and the time division method, different three-dimensional images can be provided to two observers or two groups of observers.
[0011]
Other aspects of the invention are:
A display device in which each of a plurality of observers can see a different image,
Means for displaying different images on the same screen;
Means for selecting the plurality of images for each observer;
Means for selecting an image visible to each observer from a two-dimensional display or a three-dimensional display;
It is characterized by having.
[0012]
The above-described configuration is characterized in that a two-dimensional image and a three-dimensional image can be selected in a timely manner in the configuration shown in FIGS.
[0013]
Other aspects of the invention are:
Means for forming a plurality of time-divided images,
Means for giving different polarization states to one and the other of the plurality of images,
Means for projecting the plurality of images in an overlapping manner;
Means for separating the time-divided image by an optical shutter;
Means for selectively transmitting each of the different polarization states;
It is characterized by having.
[0014]
Specific examples of the invention are shown in FIGS. 1 to 4, the liquid crystal panel 511 of FIG. 3 (details of which are shown in FIG. 2) form two time-divided color images, which are converted into polarizing plates (or appropriate polarized light). Means) By passing through 512 and 513, two different polarization states are given, and this image is reflected from the optical system 508 by the mirror 509 and projected on the screen 510, and the image projected on the screen 510 is Selection is made by polarizing plates 404 and 405 and liquid crystal shutters 406 and 407 in FIG. Thus, the observer wearing the glasses 402 can see a predetermined three-dimensional image.
[0015]
Other aspects of the invention are:
n is a natural number of 1 or more,
A method of displaying different 2n types of images on the same screen,
The 2n types of images are separated into n by time division and further separated by giving two polarization states.
[0016]
A specific example of the above configuration is shown in FIG. FIG. 7 is an operation timing chart when the configuration shown in FIG. 6 is operated. FIG. 7 shows an example in which three three-dimensional images represented by ABC are displayed and separated from each other.
[0017]
Since the three-dimensional image requires images for the right eye and the left eye, six independent images of 2 × 3 are required when three three-dimensional images are displayed. When the operation shown in FIG. 7 is performed, it can be said that n = 3.
[0018]
In the operation shown in FIG. _01, A ₀₂ And B _01, B ₀₂ And C ₀₁ , C ₀₂ A filter that selectively transmits two polarization states through the time-divided image, ₀₁ And A ₀₂ And B ₀₁ And B ₀₂ And C ₀₁ And C ₀₂ And are separated. In this way, each of the three observers (or many observers divided into three groups) can provide a right-eye image and a left-eye image, and can individually view a three-dimensional image. it can.
[0019]
Other aspects of the invention are:
A method of projecting one image composed of RGB and the other image composed of R′G′B ′ onto the same projection plane,
The one image and the other image are given different polarization states,
The one image and the other image are composed of a plurality of different images which are time-divided.
[0020]
Other aspects of the invention are:
A first image having a first polarization state and time-divided into a right-eye image and a left-eye image;
A second image having a second polarization state different from the first polarization state and time-divided into a right eye image and a left eye image;
And
The first image is selectively transmitted by optical means that selectively transmits the first polarization state, and the transmitted first image is temporally divided by the left and right eyes using an optical shutter. By viewing, the first three-dimensional image is selectively obtained,
The second image is selectively transmitted by optical means that selectively transmits the second polarization state, and the transmitted second image is temporally divided by the left and right eyes using an optical shutter. A second three-dimensional image is selectively obtained by viewing.
[0021]
A specific example of the above configuration is shown in FIG. FIG. 5 shows an image A having a first polarization state. _i, B _i (I is a natural number including 0), image C having the second polarization state _i, D _i It is shown. A and B and C and D indicate a right-eye image and a left-eye image, respectively.
[0022]
A _i, B _i 4 is selectively transmitted by polarizing plates 404 and 405 shown in FIG. 4, and the transmitted image is temporally divided by liquid crystal shutters (optical shutters) 406 and 407 for the right eye. Image A _i And left eye image B _i And get.
[0023]
C _i, D _i 4 is selectively transmitted by polarizing plates 408 and 409 shown in FIG. 4, and the transmitted image is temporally divided by liquid crystal shutters (optical shutters) 410 and 411 for the right eye. Image C _i And left eye image D _i And get.
[0024]
Other aspects of the invention are:
A first image having a first polarization state and time-divided into a right eye image and a left eye image;
A second image having a second polarization state different from the first polarization state and time-divided into a right eye image and a left eye image;
In
The first image and the second image are obtained as an image in which images having two different polarization states are overlapped using an optical shutter, and the image is transmitted through the first polarization state selectively. A display method comprising: separating an image for a right eye and a left eye by an optical unit and a second optical unit that selectively transmits the second polarization state.
[0025]
As a specific example of the above configuration, an example in which the positional relationship between the polarizing plate and the liquid crystal shutter in the spectacle portion is replaced in the configuration shown in FIG. 4 described above can be given.
[0026]
Other aspects of the invention are:
A first image having a first polarization state and a plurality of different three-dimensional images for right eye or left eye displayed in a time-division manner;
A second image having a second polarization state different from the first polarization state, and a plurality of different three-dimensional images for left eye or right eye displayed in a time-division manner;
Each of the first three-dimensional image and the second three-dimensional image separately, selecting a specific image time-divided from the first image and the second image with an optical shutter, An image for the right eye or left eye is obtained from the selected image with optical means that selectively transmits the first polarization state, and the left eye is obtained with optical means that selectively transmits the second polarization state. It is characterized in that an image for use or right eye is obtained.
[0027]
An operation timing chart of a specific example of the above configuration is shown in FIG. FIG. 7 is an operation timing chart when the configuration shown in FIG. 6 is operated.
[0028]
In the operation shown in FIG. 7, the display screen 1 and the display screen 2 have different polarization states. On the display screen 1, an image for the right eye of three ABC three-dimensional images is displayed. The display screen 2 displays a left-eye image of three ABC three-dimensional images.
[0029]
First, the right eye image and the left eye image of the image A are selected by the liquid crystal shutter (optical shutter) shown in FIG. For example, the image for the right eye of image A is A ₀₁ And the image for the left eye is A ₀₂ Indicated by Similarly, the right eye image and the left eye image of the images B and C are selected by the liquid crystal shutter.
[0030]
Then, using a polarizing plate as means for selectively transmitting each polarization state, for example, the image A for the right eye ₀₁ And left eye image A ₀₂ And are separated. Thus, the right eye image and the left eye image of each ABC can be individually selected. Three persons (or a plurality of persons divided into three groups) can individually view three-dimensional images.
[0031]
Other aspects of the invention are:
A first image having a first polarization state and a plurality of different three-dimensional images for right eye or left eye displayed in a time-division manner;
A second image having a second polarization state different from the first polarization state, and a plurality of different three-dimensional images for left eye or right eye displayed in a time-division manner;
Respectively, as a first three-dimensional image and a second stereoscopic image,
The first image is obtained by an optical means that transmits the first polarization state, a right-eye image or a left-eye image of a specific image time-divided from the image by an optical shutter, and the second image The second image is obtained by an optical means that transmits the polarization state, and a left eye image or a right eye image of a specific image time-divided from the image by an optical shutter is obtained.
[0032]
As a specific example of the above configuration, an operation example in the case where the positional relationship between the liquid crystal shutter and the polarizing plate in the configuration shown in FIG.
[0033]
[Action]
In order to facilitate understanding of the invention disclosed in this specification, an example of a timing chart thereof will be described with reference to FIG. FIG. 7 shows an example in which three three-dimensional images of ABC are displayed on the same screen and are separated and observed by three observers.
[0034]
For example, a three-dimensional image indicated by A is a natural number including 0 as i. _i1 An image for the right eye of the image A composed of frames indicated by _i2 And the image for the left eye of the image A composed of the frames indicated by.
[0035]
The display screen 1 and the display screen 2 have different polarization states. For example, different polarization states are given such that the display screen 1 is vertically polarized and the display screen 2 is horizontally polarized.
[0036]
For example, an observer who wants to selectively view the image A sees the screen (screen) 510 wearing glasses indicated by 601 in FIG. On the screen 510, the display screen 1 and the display screen 2 of FIG.
[0037]
Here, by simultaneously opening and closing the liquid crystal shutters 604 and 605 provided in the glasses 601, only the frame of the image A is selectively transmitted. The right eye image A is then transmitted by the polarizing plate 603 that transmits the polarization state of the display screen 1. _i1 And left eye image A _i2 And are separated. Thus, the observer wearing the glasses 601 can selectively view the three-dimensional image A.
[0038]
【Example】
[Example 1]
This embodiment relates to a display device using a liquid crystal panel integrated on the same substrate capable of forming two sets of RGB images. When this display device is used, a three-dimensional image can be displayed, and the images can be displayed as two different images, which can be recognized independently by different observers.
[0039]
FIG. 1 is a block diagram of a configuration for driving an integrated liquid crystal panel shown in FIG. 2 described later. The configuration shown in FIG. 1 is a configuration in which a two-dimensional image and a three-dimensional image can be selected and displayed as appropriate. In FIG. 1, a two-dimensional image I / F is an image signal R obtained by matching a TV signal (NTSC signal) or an RGB image signal (hereinafter, a two-dimensional image signal) input from the outside with the system timing. _t G _t B _t And a function of generating panel control signals HSTA2D, VSTA2D, CLKH2D, and CLKV2D for controlling the operation of the liquid crystal panel.
[0040]
The timing generator generates a system operation clock and a divided clock of the operation clock.
[0041]
The reset circuit generates an initialization signal upon power-on and a forced initialization signal according to a request from the switch or sequencer.
[0042]
The three-dimensional image I / F outputs image data written in the image buffer R and the image buffer L together with a control signal in accordance with the operation rate of the liquid crystal panel. The output image data is output as an analog signal via a DA converter.
[0043]
The sequence control circuit interprets a command input from the external bus and performs writing to the image memory and setting of a reading mode. Also, the operation status is confirmed by reading, and processing for a forced reset request is performed.
[0044]
The image buffer controller performs writing to the image buffer memory according to a request from the sequencer and output control of image data in synchronization with the operation rate clock of the liquid crystal panel.
[0045]
AP (address pointer) is a pointer indicating the physical address of the image buffer memory. Here, control such as increment is performed by the image buffer controller.
[0046]
The three-dimensional image 2 / F shown here is for generating two sets of RGB signals for the right eye and the left eye. Accordingly, the two sets of RGB signals are basically different (of course, there are also identical portions).
[0047]
If two sets of RGB signals are identical, the same image is superimposed. Accordingly, normal two-dimensional image data is displayed. In such a case, a two-dimensional image with high brightness and high resolution can be obtained.
[0048]
In FIG. 1, CKLH2D indicates an operation clock of the horizontal scanning control circuit for performing two-dimensional display. HSTA2D indicates a horizontal scanning timing enable signal for performing two-dimensional display. CKLH3D indicates an operation clock of the horizontal scanning control circuit for performing three-dimensional display. HSTA3D indicates a horizontal scanning timing enable signal for performing three-dimensional display.
[0049]
R _t , G _t , B _t Indicates image data of a two-dimensional image such as a general TV image. CLKV2D represents an operation clock of the vertical scanning control circuit for performing two-dimensional display. VSTA2D indicates a vertical scanning timing enable signal for performing two-dimensional display.
[0050]
MODSEL indicates a mode selector. The mode selector has a function of switching between two-dimensional and three-dimensional display. In the configuration shown in the figure, it is set to perform two-dimensional display in a state where the mode selector is not operated.
[0051]
VSTA3D indicates a vertical scanning timing enable signal for performing three-dimensional display. CLKV3D indicates an operation clock of the vertical scanning control circuit for performing three-dimensional display.
[0052]
R _r , G _r , B _r Indicates right RGB image data. R _l , G _l , B _l Indicates left RGB image data.
[0053]
CLR is a reset signal, and indicates a signal for resetting the circuit of the liquid crystal panel unit. In FIG. 2, the wiring for transmitting the CLR signal is omitted, but the wiring is actually formed so that the CLR signal is transmitted to each flip-flop circuit. (Omitted because the figure becomes complicated)
[0054]
In the configuration shown in FIG. 1, the 2D / 3D image switching unit can select and display 2D display and 3D display by selecting an image signal. In other words, two-dimensional display and three-dimensional display can be selected and displayed with one display device. For example, a normal TV image sent as an analog signal can be displayed, or a three-dimensional computer graphics image sent as a digital signal can be displayed.
[0055]
FIG. 2 shows a schematic configuration of an integrated active matrix liquid crystal panel unit. The configuration shown in FIG.
M and N are natural numbers of 2 or more,
On the board
An active matrix region for forming M × N images;
M + N peripheral circuit areas;
Has a configuration in which
Each of the M peripheral circuits simultaneously performs horizontal scanning control of N active matrix regions,
Each of the N peripheral circuits simultaneously performs vertical scanning control of M active matrix regions.
[0056]
FIG. 2 shows a case where M = 2 and N = 3 in the above configuration. FIG. 2 shows (M = 2) × (N = 3) active matrix regions 103, 104, 105, 106, 107, and 108 arranged.
[0057]
Further, 2 + 3 peripheral circuits 101, 102, 109, 110, and 111 are arranged as peripheral circuit regions for driving these active matrix circuits. Among these peripheral circuits, 101 and 102 are horizontal scanning control circuits. Reference numerals 109, 110, and 111 denote vertical scanning control circuits.
[0058]
In the configuration shown in FIG. 2, the horizontal scanning control circuits 101 and 102 simultaneously perform the horizontal scanning control of the active matrix circuits 103, 104, and 105, and 106, 107, and 108, respectively.
[0059]
That is, the peripheral circuit 101 simultaneously performs horizontal scanning control of the active matrix regions 103, 104, and 105. Further, the peripheral circuit 102 is configured to simultaneously perform horizontal scanning control of the active matrix regions 106, 107, and 108.
[0060]
The peripheral circuits 109, 110, and 111 are configured to simultaneously perform vertical scanning control of the active matrix regions 103 and 106, 104 and 107, and 105 and 108, respectively.
[0061]
That is, the peripheral circuit 109 performs the vertical scanning control of the active matrix regions 103 and 106 simultaneously. The peripheral circuit 110 is configured to simultaneously perform vertical scanning control of the active matrix regions 104 and 107. In addition, the peripheral circuit 111 simultaneously performs vertical scanning control of the active matrix regions 105 and 108.
[0062]
The configuration shown in FIG. 2 has a configuration of N = 3 in order to obtain an RGB color image. However, M = N = 2 (ie 2 × 2) may be used. Alternatively, M = 2 and N = 1 may be set. Alternatively, M = 1 and N = 2 may be set. In this case, a configuration may be adopted in which a color image is obtained using RGB color filters in each active matrix region, or a monochrome image is obtained.
[0063]
As shown in FIG. 2, generally, M × N active matrix areas are arranged in a matrix.
[0064]
In the active matrix region, pixels are arranged in a matrix,
At least one thin film transistor is disposed in the pixel,
The signal applied to the source of the thin film transistor is controlled by horizontal scanning control performed by each of the M peripheral circuits,
The signal applied to the gate of the thin film transistor is controlled by vertical scanning control performed by each of the N peripheral circuits.
[0065]
Examples of the pixel in the above configuration include an area indicated by addresses (0, 0), (1,0),... (M, 0) shown in FIG. In the configuration shown in FIG. 2, one thin film transistor is arranged for each pixel.
[0066]
Note that the number of thin film transistors arranged in each pixel is not limited to one. As the arrangement method, a plurality may be connected in series or may be arranged in combination with a MOS capacitor. Further, not only the same channel type combination but also different channel types may be combined.
[0067]
2 needs to transmit light through the liquid crystal panel, it is necessary to use a light-transmitting material for the substrate. Specifically, it is necessary to use a glass substrate or a quartz substrate.
[0068]
The thin film transistors arranged in the active matrix region and the thin film transistors constituting the peripheral circuit are integrated on the same substrate. Such a configuration is a very useful configuration for obtaining a reduction in size and weight of the apparatus and a reduction in production cost.
[0069]
An example of the operation shown in FIG. 2 will be briefly described. In the configuration shown in FIG. 2, the operations of the vertical scanning control circuits 109 to 110 are basically controlled by the operation clock of the vertical scanning control circuit indicated by CLKV. The operation of the horizontal scanning control circuit indicated by 101 and 102 is basically controlled by the operation clock of the horizontal scanning control circuit indicated by CLKH.
[0070]
In the following, an image display method in the active matrix region 103 will be described for the sake of simplicity. Note that the operation of other active matrix regions also follows the active matrix region 103.
[0071]
First, when a rising pulse of CLKV (operation clock of the vertical scanning control circuit) is input to the flip-flop circuit 202 of the vertical scanning control circuit 109, VSTA (vertical scanning timing enable signal) is punched out. At this time, the output of the flip-flop circuit 202 becomes H (logic level high) level. Further, the output level of the other flip-flop circuit of the vertical scanning control circuit 109 remains L (logic level is Low).
[0072]
As a result, Y ₀ The gate signal line 211 indicated by the row becomes H level. The thin film transistors at addresses (0,0), (1,0),... (M, 0) are all turned on.
[0073]
In this state, in the flip-flop circuit 201 of the horizontal scanning control circuit 101, HSTA (horizontal scanning timing enable signal) is punched out by CLKH (operation clock of the horizontal scanning control circuit), and X ₀ The signal level at this point becomes H. At this time, X ₁ The subsequent points are L (logic level is low).
[0074]
As a result, an H signal is input to the sampling and holding circuit 204 via the image sampling signal line 208, and an R image data signal is taken into the sampling and holding circuit 204.
[0075]
Then, image data flows through the image signal line 209. That is, a signal of image data is applied to the source of the thin film transistor at the address indicated by (0,0), (0,1), (0,2)... (0, n).
[0076]
In this state, the thin film transistors at addresses (0,0), (1,0),... (M, 0) are all in the ON state, and (0,0), (0,1), (0 , 2)... An image data signal is applied to the source of the thin film transistor at address (0, n). Accordingly, image data is written in the pixel at address (0,0).
[0077]
Thereafter, the output of the flip-flop circuit 201 becomes L level by the rising edge of the next CLKH pulse. That is, X ₀ The point becomes L level. On the other hand, in the flip-flop circuit 206, when the rising edge of the CLKH pulse is input, its output changes to the H level. That is, X ₁ The point becomes H level.
[0078]
As a result, information is written at address (1,0). In this way, the flip-flop circuit X is operated according to the operation clock of CLKH. _m Are sequentially shifted to the H level. Then, the image information is sequentially written at the address (m, 0).
[0079]
Y ₀ After the writing of information in the row is completed, the output level of the flip-flop circuit 202 becomes L and the output level of the flip-flop circuit 203 becomes H by the rising edge of the CLKV signal. As a result Y ₁ The signal level of the row becomes H.
[0080]
And Y ₁ In the row, image data information is sequentially written at addresses (0, 1), (1, 1), (2, 1)... (M, 1). In this way, one frame is completed when the writing of information up to address (n, m) is completed.
[0081]
The above operation is performed at the same timing in other active matrix regions other than 103.
[0082]
When the integrated liquid crystal panel shown in FIG. 2 is used, two color images of RGB can be obtained simultaneously. Of course, the color images can have different contents.
[0083]
Here, a configuration in which six active matrix regions are integrated is shown. However, it is possible to further increase the number of active matrix regions to be integrated. For example, RGB, R'G'B ', R ^,, G ^,, B ^,, And 9 active matrix regions can be integrated.
[0084]
In this case, it is only necessary to add one more horizontal scanning control circuit in the configuration shown in FIG. In this case, three color images can be obtained.
[0085]
As described above, the integrated active matrix type liquid crystal panel whose basic configuration is shown in FIG. 2 has the feature that even if the active matrix area to be integrated is increased, it is not necessary to increase the peripheral driving circuit so much. Have.
[0086]
Specifically, if the number of active matrix regions to be integrated is M × N, the number of required peripheral drive circuits may be M + N. This is very useful when the integration is further increased.
[0087]
FIG. 3 shows an outline of a display device using the integrated liquid crystal panel shown in FIG. In FIG. 3, reference numeral 500 denotes a casing of the apparatus, and an image enlarged and projected from the inside is displayed on a screen 510 disposed in the casing 500.
[0088]
Here, a configuration in which an image is viewed from the opposite side of the surface projected onto the screen 510 (generally referred to as rear projection) is shown, but a configuration in which an image is viewed from the surface projected onto the screen (generally referred to as projection projection). The basic configuration is the same except that the image is inverted. However, the projection type projection is different in that the housing and the screen are not integrated.
[0089]
In addition, a two-dimensional / three-dimensional image control circuit 511 whose outline is shown in FIG. 1 is incorporated in the casing 500, and a configuration capable of selecting and displaying a two-dimensional image and a three-dimensional image in a timely manner. It has become. Reference numeral 507 denotes a liquid crystal panel for forming an image, the outline of which is shown in FIG.
[0090]
In FIG. 3, light from a light source 501 that emits white light is first reflected by a half mirror 502, and is split into light having a wavelength region corresponding to GBR by dichroic mirrors 504, 505, and 506.
[0091]
Further, the light reflected by the mirror 503 is also split into each wavelength region of B (blue), G (green), and R (red) by a dichroic mirror (not shown). That is, two sets of RGB rays (6 rays in total) are generated by two sets of RGB dichroic mirrors.
[0092]
These light rays are incident on an integrated liquid crystal panel 507 whose outline is shown in FIG. A predetermined image is formed by optical modulation with the integrated liquid crystal panel 507. Here, two sets of RGB images are formed. These images are projected from an optical system 508 through a mirror 509 onto a screen (projection plane) 510 where they are combined as a color image.
[0093]
The optical system 508 incorporates a lens system for enlargement projection. In this lens system, parameters are set so that images can be superimposed on the projection plane 510, and the arrangement method is determined.
[0094]
Each image projected from the optical system 508 is given a specific polarization state from polarizing plates denoted by 512 and 513. Here, two linear polarization states different from each other by 90 ° are given.
[0095]
The pairs given different polarization states are the RGB image formed by the active matrix regions 103, 104 and 105 shown in FIG. 2 and the R formed by the active matrix regions 106, 107 and 108 shown in FIG. For 'G'B' image.
[0096]
That is, the linear polarization state that can withstand RGB images formed by the active matrix regions 103, 104, and 105 shown in FIG. 2 and the R′G′B ′ formed by the active matrix regions 106, 107, and 108 The linear polarization state given to the image is different in the polarization direction by 90 °.
[0097]
Hereinafter, a configuration in which two different three-dimensional images are displayed using the display device shown in FIG. 3 and two different three-dimensional images can be viewed by two observers will be described. FIG. 4 shows an outline of this configuration. FIG. 4 shows a different three-dimensional image for each observer by viewing the image projected on the projection surface (screen) 510 of the display device shown in FIG. 3 using special glasses 402 and 403. It is a configuration that can.
[0098]
In order to perform the display as described above, the apparatus may be operated according to an operation chart as shown in FIG. The color image A formed by the active matrix regions 103 to 105 in FIG. _i B _i And a color image C formed by the active matrix regions 106 to 108. _i D _i Are individually recognized by a person wearing glasses 402 and a person wearing glasses 403.
[0099]
As shown in FIG. _i B _i Is the image A for the right eye _i And left eye image B _i It consists of. Here, i is a natural number including 0. Image A _i B _i Is linearly polarized light having a predetermined direction by the polarizing plate 512 of FIG. 3 and projected onto the screen 510. Image A _i And image B _i Are alternately displayed for each frame.
[0100]
Similarly, image C _i D _i Is the image C for the right eye _i And left eye image D _i It consists of. Here, i is a natural number including 0. Image C _i D _i Is image A by the polarizing plate 513 of FIG. _i B _i Is a linear polarization state having a direction different by 90 °. Then, it is projected on the screen 510. Image C _i And image D _i Are alternately displayed for each frame.
[0101]
Image A _i B _i And image C _i D _i Is projected on the screen 510 in an overlapping manner. That is, the image data of the polarization state 1 and the polarization state 2 shown on the display screen of FIG. 5 are displayed simultaneously.
[0102]
This display is individually observed with the glasses 402 and 403. The spectacles 402 includes polarizing plates 404 and 405 whose polarization directions are determined so as to transmit the polarization state given by the polarizing plate 512. That is, the polarizing plates 404 and 405 are composed of polarizing plates having the same polarization direction.
[0103]
Thus, in the eyeglasses 402, the polarizing plates 404 and 405 are displayed as A shown in the polarization state 1 in FIG. _0, B _0, A _1, B _1, A _2, B ₂ The image of... Is transmitted.
[0104]
The eyeglasses 402 are provided with optical shutters 406 and 407 behind the polarizing plates 404 and 405 (in this embodiment, liquid crystal shutters). When using linearly polarized light, it is necessary to pay attention to the polarization direction of the polarizing plate disposed on the liquid crystal shutter. In order to avoid this problem, a liquid crystal shutter may be configured using a dispersion type liquid crystal panel that does not use a polarizing plate.
[0105]
The liquid crystal shutter 407 is image A. _0, A _1, A ₂ Open and close in synchronization with the display so that.
[0106]
The liquid crystal shutter 406 is an image B. _0, B _1, B ₂ Open and close in synchronization with the display so that.
[0107]
As a result, in the right eye part of the glasses 402, A _0, A _1, A ₂ .. Selectively appear, and in the left eye part of the glasses 402, B _0, B _1, B ₂ The image indicated by... Is selectively visible.
[0108]
Thus, in the glasses 402, the three-dimensional image A _i B _i Can be seen selectively.
[0109]
On the other hand, in the glasses 403, the polarization directions are set so that the polarizing plates 408 and 409 transmit the polarization state image provided by the polarizing plate 513. Therefore, it is C that transmits through the polarizing plates 408 and 409. _0, D _0, C _1, D ₂ ··· The image shown in
[0110]
Then, the liquid crystal shutters 410 and 410 operate at the timing as shown in FIG. _0, C ₁ .. Are selectively viewed, and D in the left eye portion of the glasses 403 _0, D ₁ Images can be selectively viewed.
[0111]
Thus, in the glasses 403, the three-dimensional image C _i D _i Can be seen selectively.
[0112]
In this manner, different three-dimensional images can be simultaneously viewed by the person wearing the glasses 402 and the glasses 403.
[0113]
In this embodiment, the polarization state to be given is linearly polarized light. However, when linearly polarized light is used, there is a problem that if the glasses are tilted, the plane of polarization is shifted and the filter effect is reduced. In order to solve this problem, clockwise circularly polarized light and counterclockwise circularly polarized light may be used as the polarization state.
[0114]
That is, image A _i B _i Is given a clockwise circular polarization, and image C _i D _i The counterclockwise circularly polarized light is provided, the right-handed circularly polarized light is selectively transmitted by the glasses 402, and the left-handed circularly polarized light is selectively transmitted by the glasses 403.
[0115]
In order to make the image easy to see, it is effective to make the time for opening the liquid crystal shutter shorter than the display time for one frame of time-divided image.
[0116]
The configuration shown in the present embodiment becomes a normal two-dimensional image display device as it is. That is, a normal TV image or video image can be displayed by switching between a 2D image and a 3D image by the 2D / 3D image switching unit configured as shown in FIG.
[0117]
Also in this case, two independent images can be displayed. In displaying normal two-dimensional images, when two independent images are displayed, the liquid crystal shutter of the glasses is always open, and time-division display is not required.
[0118]
Further, the positional relationship between the liquid crystal shutter and the polarizing plate in the present embodiment may be reversed. Even if the positional relationship between the liquid crystal shutter and the polarizing plate is reversed, the image finally seen by the right eye or the left eye does not change.
[0119]
In this embodiment, the glasses are provided with a polarizing plate and a liquid crystal shutter plate. However, since the polarizing plates 404 and 405 have the same direction, a single large polarizing filter may be arranged in front of the person wearing the glasses without mounting on the glasses.
[0120]
In this case, even when linearly polarized light is used, there is a significance that the filter effect by the polarizing plate does not change even if the line of sight of the person wearing glasses is inclined. However, there is a drawback that the visual position of the person wearing glasses is limited.
[0121]
Further, in the operation method shown in FIG. _i, B _i Stop forming images for the right and left eyes, and _i B _i Image and C _i D _i If the same image is used, it has the same function as an ordinary TV receiver or display.
[0122]
[Example 2]
In this embodiment, a plurality of three-dimensional images are separated by using time-division display, and the three-dimensional image displayed by self-division is further separated into a right-eye image and a left-eye image using polarization characteristics. Related to the configuration to be performed.
[0123]
When the configuration shown in the present embodiment is used, different three-dimensional images can be seen by two or more observers.
[0124]
FIG. 4 shows an outline of the configuration shown in this embodiment. As shown in the drawing, also in this embodiment, an image is formed using the projection type display device shown in FIG. 3 using a liquid crystal panel as shown in FIG.
[0125]
The configuration shown in FIG. 6 is such that an image displayed on the screen 510 can be viewed with glasses 601, 606 and 611 equipped with a liquid crystal shutter and a polarizing plate, and different three-dimensional images can be seen. The liquid crystal shutter is controlled to be opened and closed simultaneously with the timing of the image displayed on the screen 510. Here, a liquid crystal shutter is used as an optical shutter, but other means may be used as long as a predetermined operating speed is obtained and the weight is light enough not to be a burden when used.
[0126]
This embodiment is operated according to the operation timing chart shown in FIG. First, the screen 510 displays six types of images as shown in the display screen of FIG. Where A ₀₁ And A ₀₂ And are displayed in a superimposed state at the same time. Also B ₀₁ And B ₀₂ And even C ₀₁ And C ₀₂ Are also displayed in a superimposed state.
[0127]
In the figure, one frame is preferably 1/100 second or less in order to maintain the image quality. In addition, if the image quality equivalent to or higher than that of a normal TV image is maintained, the length of one frame is preferably 1/180 seconds or less.
[0128]
A ₀₁ And A ₀₂ And are a right-eye image and a left-eye image that form a three-dimensional image, respectively. B ₀₁ And B ₀₂ The right-eye image and the left-eye image for forming a three-dimensional image are indicated by. Similarly, C ₀₁ And C ₀₂ The right eye image and the left eye image forming a three-dimensional image are indicated by.
[0129]
In FIG. 7, the display screen 1 is a color image formed in the active matrix regions 103 to 105 in FIG. The display screen 2 is a color image formed in the active matrix areas 106 to 108 in FIG.
[0130]
A feature of the operation method shown in this embodiment is that for the right eye of a three-dimensional image obtained by time-dividing RGB images formed in the active matrix regions 103 to 105 and 106 to 108 in FIG. The image and the image for the left eye.
[0131]
That is, in the active matrix regions 103 to 105, the image A of the right eye of the three-dimensional image A is displayed. ₀₁ After one frame is formed, the image B of the right eye of the three-dimensional image B is displayed in the next frame. ₀₁ 1 frame is formed. Thereafter, the image C of the right eye of the three-dimensional image C ₀₁ 1 frame is formed. It works like that.
[0132]
On the other hand, in the active matrix regions 106 to 108, the image A of the left eye of the three-dimensional image A ₀₂ After one frame is formed, the image B of the left eye of the three-dimensional image B is displayed in the next frame. ₀₂ 1 frame is formed. Thereafter, the image C of the right eye of the three-dimensional image C ₀₂ 1 frame is formed. It works like that.
[0133]
Therefore, even when only the images formed by the set of active matrix regions 103 to 105 controlled by the common horizontal scanning control circuit 101 are viewed, only the right-eye image of the three-dimensional image that is time-divided can be seen.
[0134]
Similarly, even when only the images formed by the set of active matrix regions 106 to 108 controlled by the common horizontal scanning control circuit 102 are viewed, only the image for the left eye of the time-divided three-dimensional image can be seen.
[0135]
In such an operation, a right-eye image of a plurality of three-dimensional images is formed in a time-division manner in an active matrix region controlled in common by the horizontal scanning control circuit 101, and an active matrix controlled in common by the horizontal scanning control circuit 102. It can be said that this is an operation for forming a left-eye image of a plurality of three-dimensional images in a region by time division.
[0136]
On the screen 510, the image for the left eye for the right eye is displayed at the same time, and such a display is in a state of being displayed in three types of time division.
[0137]
Further, the image formed in the active matrix regions 103 to 105 is given a linearly polarized state in a predetermined direction by the polarizing plate 512 of the display device shown in FIG.
[0138]
Further, the image formed in the active matrix regions 106 to 108 is given a state of being linearly polarized at an angle different from the predetermined direction given by the polarizing plate 512 by the polarizing plate 513 of the display device shown in FIG. .
[0139]
That is, A ₀₁ , B ₀₁ , C ₀₁ , A ₁₁ , B ₁₁ , C ₁₁ The image indicated by... Is linearly polarized in a predetermined direction. A ₀₂ , B ₀₂ , C ₀₂ , A ₁₂ , B ₁₂ , C ₁₂ The image indicated by... Is linearly polarized in a direction 90 ° different from the predetermined direction.
[0140]
Then, three observers view the image displayed on the screen 510 with special glasses 601, 606 and 611 equipped with a liquid crystal shutter and a polarizing plate. At this time, the liquid crystal shutters arranged in the glasses are simultaneously opened and closed in the left and right eyes at a predetermined timing as shown in FIG.
[0141]
For example, the liquid crystal shutters 604 and 605 of the glasses 601 open and close so as to selectively transmit the three-dimensional image A. Due to the operation of the shutters 604 and 605, the polarizing plate 602 and 603 have the image A ₀₁ And A ₀₂ The one that overlaps with is incident. This image A ₀₁ The polarization state is a linear polarization state having a predetermined direction by the polarizing plate 512. Image A ₀₂ The polarization state is a linear polarization state having a direction 90 ° different from the predetermined polarization state at the polarizing plate 513.
[0142]
On the other hand, the polarizing plate 603 provided in the glasses 601 is an image A in which the polarizing plate 512 is changed to a predetermined polarization state. ₀₁ The polarization direction is set so as to selectively transmit the polarization state.
[0143]
On the other hand, the polarizing plate 602 provided in the glasses 601 is an image A that has been brought into a predetermined polarization state by the polarizing plate 513. ₀₂ The polarization direction is set so as to selectively transmit the polarization state.
[0144]
That is, the polarizing plates 602 and 603 are arranged so that their polarization directions are different by 90 °.
[0145]
Image A ₀₁ And A ₀₂ Has a linear polarization state in which the polarization direction is different by 90 °. Therefore, the polarizing plate 602 is image A. ₀₂ Is selectively permeable. But image A ₀₁ Is not transmitted through the polarizing plate 602.
[0146]
On the other hand, the polarizing plate 603 is image A. ₀₁ Is selectively permeable. But image A ₀₂ Is not transmitted through the polarizing plate 603.
[0147]
As a result, the person wearing glasses 601 has A on his right eye. ₀₁ Image appears selectively, and its left eye has A ₀₂ Will appear selectively.
[0148]
Based on the same principle, an image transmitted through the liquid crystal shutters 609 and 610 of the glasses 606 is B ₀₁ And B ₀₂ And polarizing plate 607 is image B. ₀₂ The polarizing plate 608 is arranged so as to selectively transmit the image B. ₀₁ Are arranged so as to selectively transmit. And for those who wear spectacles 606, ₀₁ Image appears selectively, with B on its left eye ₀₂ Will appear selectively.
[0149]
Furthermore, according to the same principle, a person wearing glasses 611 has C ₀₁ Image appears selectively, with C on the left eye ₀₂ The image looks selective. That is, C on the right eye ₀₂ C is not visible ₀₁ Only the image is visible, and the left eye is C ₀₁ C is not visible ₀₂ Only the image of can be seen. In this way, each person wearing the glasses 601, 606, and 611 can selectively view different three-dimensional images A to C.
[0150]
In this embodiment, since three images are time-divided, three different three-dimensional images can be seen. However, if two images are time-divided, two different three-dimensional images can be seen as in the first embodiment. If three or more more time-division screens are formed, more different three-dimensional images can be viewed.
[0151]
As the liquid crystal shutter control means, it is preferable from the viewpoint of ease of use to use a wireless system using electromagnetic waves or infrared rays.
[0152]
Further, the positional relationship between the liquid crystal shutter and the polarizing plate in the present embodiment may be reversed. Even if the positional relationship between the liquid crystal shutter and the polarizing plate is reversed, the images finally seen by the right eye or the left eye are the same.
[0153]
For example, consider a case where the polarizing plates 602 and 603 in the glasses 601 are on the screen 510 side. In this case, the image transmitted through the polarizing plate 602 is A. ₀₂ , B _02, C _02, A ₁₂ , B _12, C ₁₂ It is. An image transmitted through the polarizing plate 603 is A. ₀₁ , B _01, C _01, A ₁₁ , B _11, C ₁₁ It is. In addition, liquid crystal shutters 604 and 605 ₀₁ And A ₀₂ Are selectively transmitted. That is, A on the right eye ₀₁ Can be seen selectively, and A in the left eye ₀₂ Images can be selectively viewed.
[0154]
In this embodiment, the polarizing plate and the liquid crystal shutter are arranged on the glasses. However, the liquid crystal shutters placed on a pair of eyeglasses operate at the same timing, so one large liquid crystal shutter is placed in front of the person wearing the eyeglasses without wearing the eyeglasses. It is good also as composition to do.
[0155]
In this case, only the polarizing plate is disposed on the glasses, and the configuration for controlling the liquid crystal shutter disposed on the glasses is not required.
[0156]
The configuration shown in FIG. 6 can be used as a TV receiver or a display on which a normal two-dimensional image is displayed as it is. A ₀₁ , A ₀₂ If the right-eye image and the left-eye image for the three-dimensional image shown in FIG. 5 are the same, a configuration in which a normal two-dimensional screen can be observed by a plurality of observers can be realized.
[0157]
Since switching of the various display methods as described above can be performed by the control unit shown in FIG. 1, there is a significance that it is not necessary to prepare a different device for use.
[0158]
Also, such significance becomes more useful by using an integrated liquid crystal panel as shown in FIG. That is, as shown in FIG. 2, the peripheral circuit is made common, and the active matrix circuit and the peripheral drive circuit are integrated, thereby simplifying the configuration necessary for switching between several display methods as described above. be able to. This is extremely significant in terms of reducing manufacturing costs and improving reliability.
[0159]
Example 3
The present embodiment relates to another configuration of the integrated liquid crystal panel shown in FIG. FIG. 2 basically has a function capable of forming two sets of three RGB images. Further, depending on the driving method, it is possible to form a plurality of images and images for three-dimensional images that are different in time division.
[0160]
The integrated liquid crystal panel shown in this embodiment can form a color image by adding four primary colors instead of three primary colors, or three primary colors plus a color for compensation.
[0161]
The present embodiment shows a configuration when a color image is formed with R (red), G (green), B (blue), and W (white). Note that the primary colors required for color display are not limited to the above configuration, and can be set as appropriate.
[0162]
FIG. 9 shows an integrated liquid crystal panel shown in the embodiment of FIG. In the configuration shown in FIG. 8, eight active matrix regions, two horizontal scanning control circuits and four vertical scanning control circuits for driving the active matrix regions are provided on a glass substrate or quartz substrate.
[0163]
In the configuration shown in FIG. 8, an active matrix area 1401 that forms an image for R (red), an active matrix area 1406 that forms an image for G (green), and an active matrix that forms an image for B (blue). A horizontal scanning control circuit 1415 for performing horizontal scanning is commonly arranged for the area 1409 and the active matrix area 1412 for forming an image for W (white).
[0164]
In addition, a common horizontal scanning control circuit 1418 is disposed for the active matrix regions 1402, 1407, 1410, and 1413 that form R′G′B′W ′ images.
[0165]
A common vertical scanning control circuit 1403 is arranged for the active matrix regions 1401 and 1402 for forming R and R ′ images. Further, a common vertical scanning control circuit 1408 is arranged for the active matrix regions 1406 and 1407 for forming the G and G ′ images. Further, a common vertical scanning control circuit 1411 is arranged for the active matrix areas 1409 and 1410 for forming the B and B ′ images. Further, a common vertical scanning control circuit 1414 is arranged for the active matrix regions 1412 and 1413 that form W and W ′ images.
[0166]
As shown in the first embodiment, the basic operation is performed by sequentially operating flip-flop circuits 1416 and 1417 disposed in the horizontal scanning control circuit 1415, for example. By this operation, information is sequentially written from the address (0,0) of the active matrix area 1401 to the address (m, 0), and an image of one frame is formed.
[0167]
When the configuration shown in FIG. 8 is adopted, the image quality of the color image can be further improved. Further, since it is only necessary to increase the vertical scanning control circuit 1414 as compared with the configuration shown in FIG. 2, there is a significance that the configuration is not so complicated.
[0168]
【The invention's effect】
By using a liquid crystal panel in which active matrix areas that can form multiple images independently are integrated on the same substrate, and adopting a display method that uses the difference between the time-division method and the polarization state, the same screen Two different 3D images can be displayed on top. These two three-dimensional images can be viewed independently of each other by using glasses combining an optical shutter and a polarizing plate.
[0169]
Further, by using a method of displaying different images by time division, two or more different three-dimensional images can be displayed.
[0170]
Further, by disabling different image display and making all the same images, it is possible to perform image display similar to that of an ordinary display device. This switching can be easily performed by switching the control circuit, and can be very versatile.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an outline of a control circuit of a display device according to an embodiment.
FIG. 2 is a diagram showing a configuration of an integrated liquid crystal panel.
FIG. 3 is a diagram showing an outline of a projection type liquid crystal display device.
FIG. 4 is a diagram showing a configuration in which a three-dimensional image can be viewed individually.
FIG. 5 is a timing chart used when individually viewing a three-dimensional image.
FIG. 6 is a diagram illustrating a configuration in which a three-dimensional image can be viewed individually.
FIG. 7 is a timing chart used when individually viewing a three-dimensional image.
FIG. 8 is a diagram showing a configuration of an integrated liquid crystal panel.
[Explanation of symbols]
101, 102 horizontal scanning control circuit
103, 104, 105 Active matrix region (pixel region) for optically modulating RGB images
106, 107, 108 Active matrix region (pixel region) for optically modulating the image of R′G′B ′
109, 110, 111 Vertical scanning control circuit
201, 206 Flip-flop circuit of horizontal scanning control circuit
202, 203 Flip-flop circuit of vertical scanning control circuit
204, 205 Sampling hold circuit
207, 211 Gate signal line
208, 210 Image sampling signal line
209 Image signal line
500 Enclosure constituting the device
501 Light source
502 half mirror
503 mirror
504, 505, 506 Dichroic mirror for RGB spectroscopy
507 LCD panel
508 optical system
509 mirror
510 screens
511 2D / 3D image control circuit
402, 403 Glasses with optical shutter and polarizing plate
601 glasses
602 Polarizing plate for left eye
603 Polarizing plate for right eye
604, 605 LCD shutter
606 glasses
607 Polarizing plate for left eye
608 Polarizing plate for left eye
609, 610 LCD shutter
611 glasses
612 Polarizing plate for left eye
613 Polarizing plate for left eye

Claims (15)

Means for displaying the first image and the third image in one region of the liquid crystal panel having two regions, the second image and the fourth image in the other region, the first image and the first image; A first polarizing plate that imparts a first polarization state to the light that constitutes the third image; and a second polarizing plate that imparts a second polarization state to the light that constitutes the second image and the fourth image; A display device having time division means for simultaneously displaying the first image and the second image and then switching to display the third image and the fourth image simultaneously;
A first shutter and a second shutter that open and close in accordance with the switching;
First means for selectively transmitting light having the first polarization state;
Second means for selectively transmitting light having the second polarization state;
The first polarization state having the first polarization state is transmitted through the first shutter and the first means to be recognized by one eye of the first observer, and the second polarization state. The second image given by the second image is transmitted through the first shutter and the second means to be recognized by the other eye of the first observer,
Recognizing the third image given the first polarization state through one of the second shutter and the first means to one eye of a second observer different from the first observer And allowing the fourth image given the second polarization state to pass through the second shutter and the second means to be recognized by the other eye of the second observer. An apparatus for recognizing a three-dimensional image. Means for displaying the first image and the third image in one region of the liquid crystal panel having two regions, the second image and the fourth image in the other region, the first image and the first image; A first polarizing plate that imparts a first polarization state to the light that constitutes the third image; and a second polarizing plate that imparts a second polarization state to the light that constitutes the second image and the fourth image; A display device having time division means for simultaneously displaying the first image and the second image and then switching to display the third image and the fourth image simultaneously;
A first shutter and a second shutter that open and close in accordance with the switching;
A third polarizing plate that selectively transmits light having the first polarization state;
A fourth polarizing plate that selectively transmits light having the second polarization state;
The first polarization with the first polarization state is transmitted through the first shutter and the third polarizing plate to be recognized by one eye of the first observer, and the second polarization The second image given a state is transmitted through the first shutter and the fourth polarizing plate to be recognized by the other eye of the first observer;
The third image given the first polarization state is transmitted through the second shutter and the third polarizing plate, and is in one eye of a second observer different from the first observer And recognizing the fourth image given the second polarization state through the second shutter and the fourth polarizing plate and recognizing the other eye of the second observer. A device for recognizing a characteristic three-dimensional image. Means for displaying the first image and the third image in one region of the liquid crystal panel having two regions, the second image and the fourth image in the other region, the first image and the first image; A first polarizing plate that imparts a first polarization state to the light that constitutes the third image; and a second polarizing plate that imparts a second polarization state to the light that constitutes the second image and the fourth image; A display device having time division means for simultaneously displaying the first image and the second image and then switching to display the third image and the fourth image simultaneously;
First glasses having a first shutter, a third polarizing plate, and a fourth polarizing plate;
Second glasses having a second shutter, a fifth polarizing plate, and a sixth polarizing plate;
The first shutter and the second shutter open and close in accordance with the switching,
The third polarizing plate and the fifth polarizing plate selectively transmit light having the first polarization state,
The fourth polarizing plate and the sixth polarizing plate selectively transmit light having the second polarization state,
The first polarization with the first polarization state is transmitted through the first shutter and the third polarizing plate to be recognized by one eye of the first observer, and the second polarization The second image given a state is transmitted through the first shutter and the fourth polarizing plate to be recognized by the other eye of the first observer;
The third image provided with the first polarization state is transmitted through the second shutter and the fifth polarizing plate to one eye of a second observer different from the first observer. And recognizing the fourth image given the second polarization state through the second shutter and the sixth polarizing plate and recognizing the other eye of the second observer. A device for recognizing a characteristic three-dimensional image. In any one of Claims 1 thru | or 3,
The apparatus for recognizing a three-dimensional image, wherein the first shutter and the second shutter are optical shutters or liquid crystal shutters. In any one of Claims 1 thru | or 4,
An apparatus for recognizing a three-dimensional image, comprising means for selecting whether or not the first image and the second image are the same. In any one of Claims 1 thru | or 5,
An apparatus for recognizing a three-dimensional image, comprising means for selecting whether or not the third image and the fourth image are the same. In any one of Claims 1 thru | or 6,
The apparatus for recognizing a three-dimensional image, wherein the first to fourth images are color displays. Means for displaying a first image, a third image, and a fifth image in one region of a liquid crystal panel having two regions, and a second image, a fourth image, and a sixth image in the other region A first polarizing plate that gives a first polarization state to the light constituting the first image, the third image, and the fifth image, the second image, the fourth image, and the The second polarizing plate that gives the second polarization state to the light that forms the sixth image, and the first image and the second image are simultaneously displayed, and then switched to switch the third image and the fourth image. A display device having time-sharing means for simultaneously displaying the images and then further switching to display the fifth image and the sixth image at the same time;
A first shutter, a second shutter, and a third shutter that open and close in accordance with the switching;
First means for selectively transmitting light having the first polarization state;
Second means for selectively transmitting light having the second polarization state;
The first polarization state having the first polarization state is transmitted through the first shutter and the first means to be recognized by one eye of the first observer, and the second polarization state. The second image given by the second image is transmitted through the first shutter and the second means to be recognized by the other eye of the first observer,
The third image given the first polarization state is transmitted through the second shutter and the first means, and is recognized by one eye of a second observer different from the first observer. The fourth image provided with the second polarization state is transmitted through the second shutter and the second means to be recognized by the other eye of the second observer,
One of the third observers different from the first and second observers through the fifth image given the first polarization state through the third shutter and the first means. Let them recognize it,
The sixth image given the second polarization state is transmitted through the third shutter and the second means to be recognized by the other eye of the third observer, A device that recognizes 3D images. In claim 8,
The apparatus for recognizing a three-dimensional image, wherein the first to third shutters are optical shutters or liquid crystal shutters. In claim 8 or claim 9,
The apparatus for recognizing a three-dimensional image, wherein the first image to the sixth image are color displays. In claim 7 or claim 10,
The apparatus for recognizing a three-dimensional image, wherein the color display is composed of red, green and blue. In claim 7 or claim 10,
The apparatus for recognizing a three-dimensional image, wherein the color display is composed of red, green, blue and white. In any one of Claims 1 thru | or 12,
In the liquid crystal panel, N is a natural number of 2 or more,
2 × N active matrix regions formed on the substrate;
2 + N peripheral circuits for driving the active matrix region,
The N peripheral circuits are located between two regions of the liquid crystal panel,
Each of the two peripheral circuits simultaneously performs horizontal scanning control of N active matrix regions,
An apparatus for recognizing a three-dimensional image, wherein each of the N peripheral circuits simultaneously performs vertical scanning control of two active matrix regions. The first image and the third image are displayed in one area of the liquid crystal panel having two areas, the second image and the fourth image are displayed in the other area, and the first image and the third image are displayed. Light forming an image is polarized in a first polarization state, light forming the second image and the fourth image is polarized in a second polarization state, and the first image and the second image are In the display device that simultaneously displays the third image and the fourth image after switching,
When displaying the first image and the second image simultaneously,
Open the first shutter and close the second shutter,
The light having the first polarization state that forms the first image is selectively transmitted so that the first image is recognized by one eye of the first observer, and the second image is formed. Selectively transmitting light having a second polarization state to recognize the second image in the other eye of the first observer;
When switching the display to display the third and fourth images simultaneously,
In accordance with the switching, the second shutter is opened and the first shutter is closed,
The light having the first polarization state that forms the third image is selectively transmitted so that the third image is recognized by one eye of a second observer, and the fourth image is formed. A method for recognizing a three-dimensional image, wherein light having a second polarization state is selectively transmitted to cause the fourth image to be recognized by the other eye of the second observer. In claim 14,
The method for recognizing a three-dimensional image, wherein the first shutter and the second shutter are optical shutters or liquid crystal shutters.

Images