JP4503910B2 - Image display method, image display apparatus, and image printing apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides an image display method for displaying, printing, and observing a stereoscopic color image. Law, painting The present invention relates to an image display device and an image printing device.
[0002]
[Prior art]
Conventionally, binocular stereoscopic image reproduction includes a left-right independent display method, a parallax barrier method, a time division method, a polarization method, a red-blue anaglyph method, and the like. Of these various 3D image reproduction methods, only the red-blue anaglyph method can be used to superimpose and display or print a binocular image without using a special mechanism such as projection. is there.
[0003]
[Problems to be solved by the invention]
However, the anaglyph method has been devised as a color anaglyph method, but it cannot be used for a color image originally. is there.
[0004]
Therefore, it is not a technique that can withstand use at the level of appreciating color images, such as photographs and movies, and although it has been recognized by more people than before, it has not generally spread widely.
[0005]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an image display method capable of viewing a color image stereoscopically and naturally. Law, painting An object of the present invention is to provide an image display device and an image printing device.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, the first plurality of colors having the first spectral distribution characteristic and the first plurality of colors are substantially as the plurality of colors for combining and displaying one color image. And a second plurality of colors having mutually exclusive second spectral distribution characteristics, the first image is the same by the first plurality of colors, and the second image is the same by the second plurality of colors. An image display method for superimposing and displaying on a display medium, wherein a peak wavelength of the first spectral distribution characteristic is shifted from a visual R, G, B sensitivity characteristic with respect to the peak wavelength, and the second spectral distribution characteristic is The deviation of the peak wavelength of the visual R, G, B sensitivity characteristics from the peak wavelength R, G, B colors are all equal to each other It is characterized by being set.
[0007]
The “substantially mutually exclusive spectral distribution characteristics” used in the above and the following texts means that “the spectral distribution overlaps to such an extent that the filters can be separated from each other with a practically usable degree of separation by a filter ( Spectral distribution characteristics such that the overlap is sufficiently small.
[0008]
With such a method, it is possible to superimpose and display a plurality of high-quality color images that are extremely natural and can withstand viewing.
[0009]
According to a second aspect of the present invention, in the first aspect of the present invention, the display is performed via an optical filter having wavelength selectivity that can selectively output only one of the first and second colors. Observe the image superimposed on the medium Enable Separately observe only one of the first and second images Made possible It is characterized by that.
[0010]
According to such a method, in addition to the operation of the first aspect of the invention, only one of a plurality of superimposed images can be reliably separated and observed.
[0011]
According to a third aspect of the present invention, in the first aspect of the invention, the first and second images are monocular images of a left eye image and a right eye image constituting a stereoscopic image. Features.
[0012]
According to such a method, in addition to the operation of the first aspect of the invention, a stereoscopic color image can be displayed in a superimposed manner by displaying the images for both the left and right eyes in a superimposed manner.
[0013]
According to a fourth aspect of the invention, in the second aspect of the invention, the first and second images are monocular images of a left eye image and a right eye image that form a stereoscopic image, Image observation glasses in which an optical filter for separately observing an image for an eye is arranged on the left eye lens and an optical filter for separating and observing an image for the right eye are arranged on the right eye lens are used.
[0014]
With such a configuration, in addition to the operation of the invention described in claim 2, a very natural stereoscopic color image can be observed.
[0015]
According to a fifth aspect of the present invention, the first plurality of colors having the first spectral distribution characteristic and the first plurality of colors are substantially the same as the plurality of colors for combining and displaying one color image. And a second plurality of colors having mutually exclusive second spectral distribution characteristics, the first image is the same by the first plurality of colors, and the second image is the same by the second plurality of colors. An image display device that superimposes and displays on a display medium, wherein the peak wavelength of the first spectral distribution characteristic deviates from the peak wavelength of the visual R, G, B sensitivity characteristic, and the second spectral distribution characteristic. The deviation of the peak wavelength of the visual R, G, B sensitivity characteristics from the peak wavelength R, G, B colors are all equal to each other It is characterized by being set.
[0016]
With such a configuration, it is possible to superimpose and display a plurality of high-quality color images that are extremely natural and withstand viewing.
[0017]
According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the first three primary colors RX, GX, BX of the three primary colors RGB of additive color mixing as the plurality of colors, and the first three primary colors RX, GX , BX and at least the second three primary colors RZ, GZ, BZ having substantially mutually exclusive spectral distribution characteristics, and the first image is formed by a phosphor emitting the first three primary colors, The second image is superimposed and displayed on the same display screen by a phosphor emitting light of the second three primary colors.
[0018]
With such a configuration, in the invention described in claim 5, a plurality of color images can be superimposed and displayed on, for example, a cathode ray tube display.
[0019]
According to a seventh aspect of the present invention, in the fifth aspect of the present invention, the first three primary colors RX, GX, BX of the three primary colors RGB of additive color mixing as the plurality of colors and the first three primary colors RX, GX , BX and at least the second three primary colors RZ, GZ, BZ having spectral distribution characteristics that are substantially mutually exclusive, and the first image emits three types of light emitting the first three primary colors The second image is superimposed and displayed on the same display screen by the three kinds of light emitting diodes that emit the second three primary colors by the diode.
[0020]
With such a configuration, in addition to the operation of the invention described in claim 5, a plurality of color images are superimposed and displayed on, for example, a light emitting diode display or a field sequential type color liquid crystal display using a light emitting diode as a light source. can do.
[0021]
The invention according to claim 8 is the invention according to claim 5, in which the first three primary colors RX, GX, BX based on the three primary colors RGB of additive color mixing as the plurality of colors and the first three primary colors RX, GX , BX and the second three primary colors RZ, GZ, BZ having substantially mutually exclusive spectral distribution characteristics are used, and the first image is formed by a three primary color filter that develops the first three primary colors. The second image is superimposed and displayed on the same display screen by the three primary color filters that develop the second three primary colors.
[0022]
With such a configuration, in addition to the operation of the fifth aspect of the present invention, a plurality of color images can be superimposed and displayed on, for example, a color liquid crystal display on which a color filter is formed.
[0023]
According to the ninth aspect of the present invention, as the three primary colors for combining and displaying one color image, the first three primary colors having the first spectral distribution characteristic and the first three primary colors are substantially mutually connected. At least the second three primary colors having the exclusive second spectral distribution characteristic are used, the first image is made of the first three primary colors, and the second image is made the second three primary colors. An image printing apparatus that performs overprinting on the same print medium with ink that develops a primary color, the shift of the peak wavelength of the first spectral distribution characteristic with respect to the peak wavelength of the visual R, G, B sensitivity characteristic, The deviation of the peak wavelength of the second spectral distribution characteristic from the peak wavelength of the visual R, G, B sensitivity characteristic is as follows: R, G, B colors are all equal to each other It is characterized by being set.
[0024]
With such a configuration, it is possible to superimpose and print a plurality of high-quality color images that are extremely natural and withstand viewing.
[0025]
The invention described in claim 10 is the invention described in claim 9, wherein the first three primary colors are CyX, MgX, YeX by Cy, Mg, Ye which are three primary colors of subtractive color mixing, and the second three The primary colors are the second three primary colors CyZ, MgZ, and YeZ having spectral distribution characteristics that are substantially mutually exclusive with the first three primary colors CyX, MgX, and YeX.
[0026]
With such a configuration, it is possible to suitably perform the overlapping printing of the plurality of color images particularly on a reflection medium such as paper that occupies most of the printed matter.
[0031]
DETAILED DESCRIPTION OF THE INVENTION
Prior to describing specific embodiments of the present invention, the basic concept of the present invention will be described first.
[0032]
FIG. 1 schematically shows a spectral distribution characteristic of a phosphor of a general color CRT display. However, the peak intensity of each phosphor of the three primary colors RGB is normalized to 1.
[0033]
The peak wavelength of each phosphor is B = about 450 [nm], G = about 535 [nm], R = about 620 [nm], which is almost the same as the peak of RGB sensitivity characteristics of human vision, Its distribution shape is not very similar to human vision.
[0034]
Ie ,each The half-value width of the phosphor distribution is about 50 to 60 [nm] for both B and G, and about 30 nm for R, but high color reproducibility can be realized even with such characteristics.
[0035]
This is not unusual, and the light-receiving spectral sensitivity characteristics of the imaging device replace the eyes, so if you want good color reproduction for all subjects with various frequency component spectra Requires a high degree of coincidence with the visual RGB characteristics, while the display device substitutes for the subject itself. As long as a stimulus having the same intensity ratio as the stimulus can be applied, high color reproducibility can be realized.
[0036]
Therefore, the left-eye image and the right-eye image are displayed on the same display medium using a plurality of colors having spectral distribution characteristics that are substantially mutually exclusive, for example, RGB that are three primary colors of additive color mixture. The optical filter that can transmit only the spectral characteristics that match the image for the left eye on the left-eye lens and the spectral characteristics that match the image for the right eye on the right-eye lens If observation glasses with transmissive optical filters are used, the left and right human eyes are able to give stimuli with the same intensity ratio as the original stimuli to the visual RGB receptors. Thus, the left-eye image and the right-eye image can be separated and visually recognized with high color reproducibility.
[0037]
FIG. 2 is used to supplement the above points, and schematically shows an example of the spectral distribution characteristics of three phosphors used in a typical high color rendering fluorescent lamp called a three-wavelength type.
[0038]
In the figure, the peak wavelengths of B, G, and R are 435 [nm], 545 [nm], and 615 [nm] that are relatively close to the peak wavelengths of RGB sensitivity characteristics of human vision. The actual characteristics have some “base” portions with a strength of about 10% or less, but the main portions with a high strength have almost such characteristics.
[0039]
Since fluorescent lamps are illumination, in order to obtain high color reproducibility (= color rendering), originally, a flat (broad) spectral distribution characteristic is required. Even if it has a narrow band characteristic with an extremely narrow half-value width of only 10 [nm], high color rendering properties can be obtained in practical use.
[0040]
In other words, in the case of a display, in principle, even if it is possible to give a stimulus with an appropriate intensity ratio to the RGB receptor of human vision, there is no problem in principle even with narrowband light or multiple monochromatic lights. It will not be.
[0041]
As described above, FIG. 2 shows the effectiveness of the color display method using the three primary colors in the narrow band, which is indispensable for the implementation of the present invention, and at the same time, the display as in the following embodiments is manufactured. In this case, it also has the meaning of one proof that a phosphor having a narrow-band emission as actually required exists.
[0042]
(First embodiment)
A first embodiment in which the present invention is applied to a color CRT display will be described below with reference to the drawings.
[0043]
FIG. 3 shows an example of spectral distribution characteristics of six types of phosphors used in the color CRT according to the first embodiment of the present invention.
[0044]
Six types of phosphors are assigned two for each primary color of RGB, and constitute two sets of three primary colors. Let each set be represented by X and Z. The peak wavelength is
BX, BZ, GX, GZ, RX, RZ
In order
435 [nm], 465 [nm], 520 [nm], 550 [nm], 605 [nm], 635 nm [nm]
And the full width at half maximum is about 20 [nm].
[0045]
Therefore, there is a slight overlap over 5 [nm] between the X system and the Z system at the base of the characteristics of the same primary colors BX and BZ, GX and GZ, RX and RZ as shown in the figure. Although it exists, the range is slight and the peak intensity is low, so that a practically sufficient resolution can be realized. Needless to say, if the overlap of the skirt portion is eliminated by using a lamp having a smaller half width as in the three-wavelength fluorescent lamp shown in FIG.
[0046]
Further, the peak wavelength is 15 [nm] shorter in the X system and 15 [in the Z system] around the peak wavelengths of about 450 [nm], 535 [nm], and 620 [nm] of the RGB sensitivity characteristics of human vision. nm] is set longer.
[0047]
In this way, the deviation of the peak wavelength of the visual RGB sensitivity characteristic from the peak wavelength is set so that the X-system color and the Z-system color are equal to each other. Both are almost equal.
[0048]
Therefore, the emission intensity of both systems for the same display color, that is, the input signal intensity can be shared. In other words, the same color is displayed when the same input is given.
[0049]
Such conditions are not essential, and even if there are some errors in the color reproduction of the X and Z systems, it is possible to use them practically, or by adding matrix correction to the RGB characteristics of each system. It is also possible to reduce the color reproduction error.
[0050]
FIG. 4 shows the basic structure of the CRT according to the present embodiment, and the basic structure itself is the same as that of a general CRT. That is, the electron beam 13 emitted from the cathode 12 of the electron gun 11 is converged by the grid 14 and is modulated in luminance, and then the emission direction is controlled by the deflection yoke 15 to connect the bright spot to the fluorescent screen 16.
[0051]
The difference in structure between a general CRT and the CRT according to the present embodiment will be described below with reference to FIGS.
[0052]
FIG. 5A shows an example of a correspondence relationship between the electron guns 21 a to 21 c and the phosphor screen 22 of a general shadow mask type color CRT. The electron beams 23 from the three electron guns 21 a to 21 c arranged in-line selectively reach only the phosphors corresponding to the three primary colors formed on the phosphor screen 22 by the shadow mask 24. FIG. 5B illustrates the arrangement state of the phosphors of the three primary colors R, G, and B formed on the phosphor screen 22.
[0053]
FIG. 6A shows an example of the correspondence relationship between the electron gun 11 and the phosphor screen 16 of the shadow mask type color CRT according to the present embodiment. Here, the electron gun 11 has a configuration in which three conventional in-line electron guns are stacked in two stages, that is, a dual in-line configuration.
[0054]
The X-line electron guns 11a to 11c are arranged in the upper row, the Z-type electron guns 11d to 11f are arranged in the lower row, and two sets of three primary colors formed on the phosphor screen 16 by the shadow mask 17, a total of six colors. It is configured to selectively reach only the phosphor. FIG. 7B illustrates an arrangement state of the six color phosphors RX, RZ, GX, GZ, BX, and BZ formed on the phosphor screen 16.
[0055]
FIG. 7 shows a specific method for displaying a stereo image using the CRT display.
[0056]
The three primary colors RX, GX, and BX are used for the left eye L image shown in FIG. 7A, and the three Z primary colors RZ, GZ, and R are used for the right eye R image shown in FIG. Using BZ, they are superimposed and displayed simultaneously on one screen as shown in FIG.
[0057]
This superimposed stereo image is an image having RGB three primary color information in both L and R images, that is, a full color image. As described above, the X system and the Z system have overlapping spectral distributions. The spectral distribution characteristics are sufficiently small and substantially mutually exclusive.
[0058]
Therefore, the observation glasses described later, in which an optical filter capable of transmitting only the X-system spectral characteristics is provided for the left eye lens and an optical filter capable of transmitting only the Z-system spectral characteristics for the right eye lens, are used. If this is the case, the L image and the R image can be separated and observed with the left eye and the right eye, and as a result, a stereoscopic image can be observed.
[0059]
Note that the above-mentioned “substantially mutually exclusive spectral distribution characteristics” means that “the overlap of spectral distributions is sufficiently small so that they can be separated from each other with a practically usable degree of separation by a filter”. Such a spectral distribution characteristic ”is meant.
[0060]
Next, the configuration of the signal processing circuit of the color CRT display for realizing the stereoscopic image display as shown in FIG. 7 will be described with reference to FIG.
[0061]
Here, for example, it is assumed that a time division input signal such as a field sequential stereo signal in an NTSC video signal is supplied to the LR separation unit 31.
[0062]
The LR separation unit 31 has a buffer memory therein, and separates synchronization signals such as horizontal / vertical scanning signals and LR identification signals from a given image signal. By sequentially storing (data updating) the input signal in each of the L and R dedicated storage areas provided in the buffer, the L image signal and the R image signal are separated and synchronized, and this is performed at predetermined time intervals of one field. It is simultaneously read and sent simultaneously to the X system processor 32 and the Z system processor 33, respectively.
[0063]
The X-system processing unit 32 performs various kinds of signals for driving the display device by performing processing such as synchronization signal separation and video signal processing on the supplied L image signal as necessary in the same manner as a normal video signal. The generated X system signals are sent to the output unit 34.
[0064]
The Z system processing unit 33 performs signal processing similar to that of the X system processing unit 32, generates various Z system signals from the R image signal supplied from the LR separation unit 31, and sends it to the output unit 34.
[0065]
The output unit 34 includes, for example, the color CRT display and its driving circuit. The output unit 34 outputs the color image for the left eye and the color image for the right eye according to the various X- and Y-system signals given above. Are superimposed and displayed as follows.
[0066]
Note that the color CRT display according to the present embodiment described above is difficult to manufacture because the number of electron guns is increased and pixels with twice the vertical density are required as compared with a normal structure. There may be cases. As a solution to this problem, a modification of the present embodiment will be shown.
[0067]
That is, it has a structure having three electron guns as in a general CRT, and each phosphor on the phosphor screen has an X-based phosphor RX, GX, BX and a Z-based phosphor RZ, GZ, BZ for each scanning line. And are applied alternately.
[0068]
The L and R images are output every other line in an interlaced state and rendered. At this time, the vertical resolution of the L and R monocular images is reduced to ½ of the total number of scanning lines. However, since a stereoscopic image is observed by merging both images, this reduction in resolution is practically a problem. It will not be.
[0069]
If the CRT is a non-interlaced scanning type or an interlaced scanning type, if the high-speed scanning type has a field rate of 100 [Hz] or more, flicker does not occur and the viewer flickers the image. Does not give a sense of incongruity.
[0070]
Note that, unlike the time-division presentation method in which a stereoscopic image is observed using a general-purpose color CRT having three electron guns and a spectacle device incorporating a liquid crystal shutter, the L image and the R image in this embodiment are used. The separation of the image from the image is based on the emission spectrum of the phosphor applied to the phosphor screen of the display, so if you use a phosphor with a high afterglow, an interlace that scans at low speed. Even with a scanning color CRT, it is possible to avoid the occurrence of flicker.
[0071]
(Other embodiments)
Regarding each of the second and subsequent embodiments described below, the spectral distribution characteristics of the color image represented by display and printing are the same as those in the first embodiment, such as the basic principle. It will be explained as an example.
[0072]
(Second Embodiment)
A second embodiment when the present invention is applied to a light emitting diode (LED) display will be described.
[0073]
In this case, similar to the color CRT display shown in FIGS. 4 and 6, the LED display conventionally used only the three primary colors RGB, the X system having the spectral distribution characteristics as shown in FIG. What is necessary is just to set it as the structure which replaced LED of three primary colors RGB of each Z system, and convenient six colors as a light source.
[0074]
Note that a normal LED display is an LED array display in which LEDs that are independent for each pixel are arranged in an array, and this second embodiment assumes such a thing, but as a modification, For example, a field-sequential color display device, also called a field-sequential type, which combines a transmissive or reflective monochrome display device such as a liquid crystal display panel that does not use a color filter with color illumination that emits light in a time-sharing manner. And what used LED via the diffusion plate as the light source for the color illumination can also be considered.
[0075]
For example, when an LED as a light source is used in a field sequential type liquid crystal display panel, six types of LEDs are used, one for each subfield.
RX, RZ, GX, GZ, BX, BZ
And in the subfield period in which RX is lit as an LED, for example, an R component image for the left eye is displayed on a monochrome liquid crystal display panel in synchronization with the lighting. By displaying an image for both left and right eyes corresponding to one field in 6 subfields, the image for both left and right eyes can be superimposed and displayed on one liquid crystal display panel as a result.
[0076]
Moreover, although it is not an LED display, it is such a field-sequential type color display device, and a phosphor similar to that of the first embodiment is arranged as a color illumination light source corresponding to a plurality of light source devices. This can also be presented as a variation.
[0077]
(Third embodiment)
A third embodiment in the case where the present invention is applied to a color liquid crystal display will be described below.
[0078]
In this case, in the case of a general color liquid crystal display panel, the color coding is performed by the dot sequential filter of the three primary colors RGB, and this is applied to the X system and the Z system having the spectral transmission characteristics as shown in FIG. What is necessary is just to replace with the thing which has the color filter which comprises one pixel by three primary colors RGB of each system, and convenient six colors.
[0079]
(Fourth embodiment)
A case where the present invention is applied to an ink jet printer will be described as a fourth embodiment with reference to the drawings.
[0080]
In the case of an ink jet printer, conventional coloring is performed using three complementary color inks of Cy (cyan), Mg (magenta), and Ye (yellow), which are three subtractive primary colors in principle.
[0081]
In the printer as a product, the deviation from the ideal characteristics of Mg is particularly large, so that the ideal ink characteristics cannot be obtained, and the economy when performing monochrome printing of documents etc. as well as color printing In consideration of the characteristics, black (BK) ink, which is the fourth color, is often used. However, since this is not essential, the present invention will be clarified by simplifying the description regarding this embodiment. Therefore, it is assumed that three complementary color inks of Cy, Mg, and Ye having good color development characteristics are used and BK is not used.
[0082]
FIG. 9 schematically shows the spectral distribution characteristics of three-color inks used in a general ink jet printer. On the other hand, FIG. 10 shows an example of the spectral distribution characteristics of six types of ink used in the ink jet printer according to the fourth embodiment.
[0083]
The six types of ink shown in FIG. 10 are assigned two to three complementary colors Cy, Mg, Ye, which are three subtractive primary colors, and constitute two sets of three primary colors. If each pair is denoted by X and Z,
CyX, CyZ, MgX, MgZ, YeX, YeZ
There are two peak wavelengths for each of these colors, but since they are complementary colors, there is an overlap for the same set, so the peak wavelengths are in order from the low frequency side.
430 [nm], 470 [nm], 515 [nm], 555 [nm], 600 [nm], 640 [nm]
It becomes six.
[0084]
This ink jet printer has three ink tanks for printing X system images and three ink tanks for printing Z system images, and print heads corresponding to these. The above-described six colors of ink are applied to each. In each of the X system and the Z system, an L image and an R image are input in the same manner as in FIGS. 7 and 8 described above, and are superimposed and printed on paper.
[0085]
Note that there are some ink jet printers based on only the three primary colors that use six colors as color inks, and therefore the ink tank mounting portion described in the fourth embodiment has 6 It is assumed that ink tanks of colors, that is, CyX, CyZ, MgX, MgZ, YeX, and YeZ are mounted, and the print control system circuit prints the left and right eye images corresponding to FIG. If this is changed, this embodiment can be realized relatively easily.
[0086]
It should be noted that the present invention can be applied to a printer other than an ink jet printer, for example, a sublimation thermal transfer printer. In that case, for example, the three-color ink sheet used conventionally may be changed to the above-mentioned six colors.
[0087]
In the fourth embodiment, subtractive color mixture ink (pigment) suitable for the reflection medium is used as the three primary colors. However, depending on the purpose, for example, when printing on a transmissive medium such as so-called slide creation, the additive color mixture three primary colors RGB Ink (pigment) may be used.
[0088]
(Fifth embodiment)
Hereinafter, a fifth embodiment in which the present invention is applied to observation glasses for observing a display screen or a stereo image of a printed matter as described in the first to fourth embodiments will be described with reference to the drawings.
[0089]
FIG. 12 shows the external configuration of the observation glasses 41. Here, the external glasses are shown as having the same configuration as the general glasses for correcting vision such as myopia, hyperopia, and astigmatism.
[0090]
Therefore, the lens for the left eye of the observation glasses 41 is provided with an X-type filter 42 adapted to the spectral distribution characteristic of the L image, while the lens for the right eye is adapted to the spectral distribution characteristic of the R image. The Z-type filter 43 is disposed.
[0091]
FIG. 11 illustrates the spectral distribution characteristics of the X system filter 42 and the Z system filter 43. The L image = left-eye X-system filter 42 shown in FIG. 11 (1) and the R image = right-eye Z-system filter 43 shown in FIG.
450 [nm], 492.5 [nm], 535 [nm], 597.5 [nm], 620 [nm]
In FIG. 2, the sharp-cut band-pass characteristic that changes sharply is obtained, and the transmission and cut-off frequency bands are reversed.
[0092]
Therefore, the first Thru When a stereo image superimposed on (printed on) the display screen or printed matter described in each of the fourth embodiments is observed, the X-system filter 42 of the left eye lens of the observation glasses 41 uses the X-system primary colors RX. , GX, BX (or CyX, MgX, YeX), and only the Z primary colors RZ, GZ, BZ (or CyZ, MgZ, YeZ) are transmitted through the Z filter 43 of the right eye lens. Therefore, the L image and the R image are separated and visually recognized and observed by the left and right eyes.
[0093]
The optical filter such as the X-type filter 42 and the Z-type filter 43 can be manufactured by coating a transparent member such as glass with a substance such as metal on a multilayer thin film.
[0094]
In the present embodiment, the observation glasses 41 are simply described as having the same configuration as normal glasses for correcting vision, but the shape and the like are not limited. For example, glasses for correcting vision It may be an over-glass type that can be worn regardless of whether it is used, or it should be a clip-on type that is worn on top of the glasses for users who use glasses for correcting vision. Is also easily considered.
[0095]
(Sixth embodiment)
Hereinafter, the present invention is applied to a print holder that stores a printed matter such as a photographic print printed by the printer described in the fourth embodiment, and that also functions as a card carrier for carrying it as necessary. Embodiments will be described with reference to the drawings.
FIG. 13A shows an external configuration of such a print holder 51, and FIG. 13B shows a partial cross-sectional structure along the line bb in FIG. Here, in order to store one printed matter 52 with a slight margin, it is assumed that the three sides of the pair of sheets 53 and 54 are attached to form a bag shape.
[0096]
Here, it is assumed that at least one of the sheets 53 and 54, for example, the sheet 53 is formed of a transparent film, and the printed surface of the printed material 52 is inserted toward the sheet 53 so that the printed material 52 is not stained. It is possible to appreciate the printed contents.
[0097]
However, the transparent sheet 53 is not a simple transparent member, but has transmission spectral distribution characteristics equivalent to those of the X-type filter 42 or the Z-type filter 43 shown in FIG.
[0098]
Therefore, when the printed matter 52 in which the L image and the R image are superimposed and printed is inserted, only the L image or the R image can be selectively observed. Originally, the left and right images are superimposed and printed. Therefore, it is possible to handle the image as if it were a normal monocular print without being conscious of a stereo photograph or the like that is unnaturally “blurred”.
[0099]
As a modification of the present embodiment, for example, in a photo album that can store a plurality of photo prints, the protective sheet on the observation surface has transmission spectral distribution characteristics equivalent to those of the X-type filter 42 or the Z-type filter 43. What consists of the member which was made is also considered. Also in this modification, it is possible to achieve the same effect as that shown in FIG.
[0100]
According to the first to sixth embodiments, a full-color stereo image can be observed, and an abnormal sensation does not occur in color reproducibility like the conventional red-blue separation type anaglyph.
[0101]
In addition, since polarized light is not used as in the method of viewing stereo images using polarized glasses, the present invention can be applied to a structure using polarized light for other purposes, such as a liquid crystal display panel.
[0102]
Furthermore, it is possible to “display” a stereo image (in a broad sense) not only on a display device that directly outputs a light image, such as a CRT display, a liquid crystal display panel, or an LED display, but also on a printed matter.
[0103]
In addition, in the sixth embodiment, even a printed matter that is unnaturally “blurred” because the images of the left and right eyes are superimposed when viewed directly with the naked eye. By using the print holder and album as shown, it is possible to handle the same as a normal monocular image.
[0104]
In each of the above embodiments, it has been described that an image in which two images for the left and right eyes are superimposed is displayed or printed and observed. However, the wavelength setting in the spectral distribution characteristics is appropriately set. For example, it is possible to extend the display to those in which images of three or more systems are superimposed and displayed.
[0105]
In addition to application to stereo images, for example, there are uses that require observation of a single image while displaying multiple images in a superimposed manner, such as a disassembled photograph that shows a series of operations continuously. Depending on the idea, it can be applied to any application, such as superimposing multiple images with completely different contents such as causes, processes, and results on a single printed matter.
[0106]
In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.
[0107]
Further, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiment, at least one of the problems described in the column of the problem to be solved by the invention can be solved, and described in the column of the effect of the invention. In a case where at least one of the obtained effects can be obtained, a configuration in which this configuration requirement is deleted can be extracted as an invention.
[0108]
【The invention's effect】
According to the first aspect of the present invention, it is possible to superimpose and display a plurality of high-quality color images that are extremely natural and withstand viewing.
[0109]
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, it is possible to reliably separate and observe only one of the superimposed images.
[0110]
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1, a stereoscopic color image can be displayed in a superimposed manner by displaying the images for both the left and right eyes in a superimposed manner.
[0111]
According to the invention described in claim 4, in addition to the effect of the invention described in claim 2, a very natural stereoscopic color image can be observed.
[0112]
According to the fifth aspect of the present invention, it is possible to superimpose and display a plurality of high-quality color images that are extremely natural and withstand viewing.
[0113]
According to the invention described in claim 6, in the invention described in claim 5, a plurality of color images can be superimposed and displayed on a cathode ray tube display, for example.
[0114]
According to the invention described in claim 7, in addition to the effect of the invention described in claim 5, a plurality of color images can be obtained by using, for example, a light emitting diode display or a field sequential type color liquid crystal display using a light emitting diode as a light source. Superimposed display is possible.
[0115]
According to the invention described in claim 8, in addition to the effect of the invention described in claim 5, it is possible to superimpose and display a plurality of high-quality color images that are extremely natural and can withstand viewing using any light source.
[0116]
According to the ninth aspect of the present invention, it is possible to superimpose and print a plurality of high-quality color images that are extremely natural and withstand viewing.
[0117]
According to the invention described in claim 10, it is possible to suitably perform the superposition printing of the plurality of color images, which is the effect of the invention described in claim 9, on a reflection medium such as paper.
[Brief description of the drawings]
FIG. 1 is a diagram showing spectral distribution characteristics of phosphors of a general color CRT display for explaining the basic concept of the present invention.
FIG. 2 is a diagram showing spectral distribution characteristics of a phosphor of a general three-wavelength fluorescent lamp for explaining the basic concept of the present invention.
FIG. 3 is a diagram showing spectral distribution characteristics of phosphors of the color CRT display according to the first embodiment of the present invention.
FIG. 4 is a view showing a structure of a color CRT display according to the embodiment.
FIG. 5 is a diagram showing an example of a correspondence relationship between an electron gun and a phosphor in a general shadow mask type color CRT.
FIG. 6 is a diagram showing an example of a correspondence relationship between an electron gun and a phosphor in the shadow mask type color CRT according to the first embodiment of the present invention.
FIG. 7 is a view showing a superimposed display method of the left eye image and the right eye image according to the embodiment;
FIG. 8 is a block diagram illustrating the configuration of a signal processing system according to the embodiment;
FIG. 9 is a diagram illustrating spectral distribution characteristics of color ink used in a general ink jet printer.
FIG. 10 is a diagram showing spectral distribution characteristics of color ink used in an ink jet printer according to a fourth embodiment of the present invention.
FIG. 11 is a diagram showing spectral distribution characteristics of optical filters used in observation glasses according to a fifth embodiment of the present invention.
FIG. 12 is a diagram showing an external configuration of observation glasses according to the embodiment.
FIG. 13 is a diagram showing a configuration of a print holder according to a sixth embodiment of the present invention.
[Explanation of symbols]
11 ... electron gun
12 ... Cathode
13 ... Electron beam
14 ... Grid
15 ... deflection yoke
16 ... phosphor screen
17 ... Shadow Mask
21a-21c ... electron gun
22 ... phosphor screen
23 ... Electron beam
24 ... shadow mask
31 ... LR separator
32 ... X system processor
33 ... Z system processor
34 ... Output section
41 ... Observation glasses
42 ... X filter
43 ... Z filter
51. Print holder
52 ... Printed matter
53 ... (Transparent) sheet
54 ... Sheet

Claims (10)

As a plurality of colors for combining and displaying one color image, a first plurality of colors having a first spectral distribution characteristic and a second spectrum in which the first plurality of colors are substantially mutually exclusive. Using a second plurality of colors with distribution characteristics;
An image display method for superimposing and displaying a first image with the first plurality of colors and a second image with the second plurality of colors on the same display medium,
The deviation of the peak wavelength of the first spectral distribution characteristic from the peak R of the visual R, G, B sensitivity characteristic and the visual R, G, B sensitivity characteristic of the peak wavelength of the second spectral distribution characteristic. The image display method characterized in that the deviation from the peak wavelength is set equal to each other for each of R, G, and B colors . An image superimposed on the display medium can be observed through an optical filter having wavelength selectivity capable of selectively outputting only one of the first and second colors , and the first The image display method according to claim 1, wherein only one of the second image and the second image can be separately observed.   The image display method according to claim 1, wherein the first and second images are monocular images of a left eye image and a right eye image constituting a stereoscopic image. The first and second images are monocular images of a left eye image and a right eye image constituting a stereoscopic image,
Use of image observation glasses in which an optical filter for separately observing an image for the left eye is provided on the left eye lens and an optical filter for separately observing the image for the right eye is provided on the right eye lens. The image display method according to claim 2. As a plurality of colors for combining and displaying one color image, a first plurality of colors having a first spectral distribution characteristic and a second spectrum in which the first plurality of colors are substantially mutually exclusive. Using a second plurality of colors with distribution characteristics;
An image display device that superimposes a first image with the first plurality of colors and a second image with the second plurality of colors on the same display medium,
The deviation of the peak wavelength of the first spectral distribution characteristic from the peak R of the visual R, G, B sensitivity characteristic and the visual R, G, B sensitivity characteristic of the peak wavelength of the second spectral distribution characteristic. An image display device characterized in that the deviation from the peak wavelength is set to be equal to each other for each of R, G, and B colors . The first three primary colors RX, GX, and BX by additive primary color mixing RGB as the plurality of colors and the first three primary colors RX, GX, and BX have spectral distribution characteristics that are substantially mutually exclusive. 2 at least three primary colors RZ, GZ, BZ are used,
The first image is superimposed and displayed on the same display screen with a phosphor that emits the first three primary colors, and the second image is superimposed with a phosphor that emits the second three primary colors. Item 6. The image display device according to Item 5. The first three primary colors RX, GX, and BX by additive primary color mixing RGB as the plurality of colors and the first three primary colors RX, GX, and BX have spectral distribution characteristics that are substantially mutually exclusive. 2 at least three primary colors RZ, GZ, BZ are used,
The first image is superimposed and displayed on the same display screen by the three types of light emitting diodes that emit the first three primary colors, and the second image is displayed by the three types of light emitting diodes that emit the second three primary colors. The image display device according to claim 5. The first three primary colors RX, GX, and BX by additive primary color mixing RGB as the plurality of colors and the first three primary colors RX, GX, and BX have spectral distribution characteristics that are substantially mutually exclusive. 2 at least three primary colors RZ, GZ, BZ are used,
The first image is superimposed and displayed on the same display screen by a three primary color filter that develops the first three primary colors and the second image by a three primary color filter that develops the second three primary colors. The image display device according to claim 5. As the three primary colors for combining and displaying one color image, the first three primary colors having the first spectral distribution characteristic and the second spectral distribution which is substantially mutually exclusive with the first three primary colors Using at least the second three primary colors having characteristics,
An image printing apparatus that superimposes and prints a first image on the same print medium with an ink that develops the first three primary colors and an ink that develops the second three primary colors.
The deviation of the peak wavelength of the first spectral distribution characteristic from the peak R of the visual R, G, B sensitivity characteristic and the visual R, G, B sensitivity characteristic of the peak wavelength of the second spectral distribution characteristic. The image printing apparatus characterized in that the deviation from the peak wavelength is set to be equal to each other for each of R, G, and B colors .   The first three primary colors are CyX, MgX, YeX by Cy, Mg, Ye, which are the three primary colors of the subtractive color mixture, and the second three primary colors are substantially the same as the first three primary colors CyX, MgX, YeX. 10. The image printing apparatus according to claim 9, wherein the image printing apparatus is a second primary color CyZ, MgZ, or YeZ having mutually exclusive spectral distribution characteristics.

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