JP2001183997A - Stereoscopic picture display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stereoscopic display device characterized in that a more real stereoscopic view is realized, and that the display device is reduced in size, especially in depth. SOLUTION: This device is a stereoscopic display device which has realized a real stereoscopic view by a pixel part emitting light by generating electrostatic force between a movable electrode part and a fixed electrode part according to image signals to vary brightness, and is characterized in that when a potential difference is applied across the movable electrode part and the fixed electrode part, the movable electrode part is displaced about the axis of the fixed electrode part according to the electrostatic force, and when light is made incident on a light control part from the pixel part, an outgoing direction of the light is controlled according to an angle formed between the pixel part and the light control part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional image display device used in general households, medical fields, game machines and the like.

[0002]

2. Description of the Related Art As a stereoscopic display device, a binocular system in which images from respective viewpoints (hereinafter referred to as binocular parallax images) are presented to the left and right eyes is general, but a multi-view system in which many parallax images are provided. A more realistic three-dimensional image can be displayed. For this purpose, holograms and super multi-view systems have been studied. However, to control the hologram at a practical level, the interval between diffraction fringes must be controlled with the wavelength accuracy of light. Further, the hologram has a problem that the resolution is poor because a plurality of parallax images are formed on a display screen. On the other hand, in the super multi-view system, as a method of realizing a parallax number of about 100 in the horizontal direction, a focused light source array method using a light source that focuses laser light has been studied, and a real stereoscopic image has been realized. In addition, the number of parallax images can be made equal to the number of laser light sources, and there is a limit to the stereoscopic viewing of the three-dimensional image.

[0003]

The conventional three-dimensional display device has a problem that the resolution of the image itself is low, the number of parallax images cannot be increased, and the three-dimensional image of the three-dimensional image cannot be held in a rough state. There was.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made to improve the resolution of an image itself and increase the number of parallax images, thereby making a three-dimensional image of a three-dimensional image denser and more natural. It is an object of the present invention to provide a stereoscopic image display device that can hold the image.

[0005]

In order to achieve the above object, according to the present invention, a three-dimensional image display device according to the first aspect of the present invention includes a pixel section for emitting light having a luminance corresponding to an image signal, and a pixel section facing the pixel section. An optical system having an optical surface arranged to reflect or transmit the light and project an image on the surface, and a control system for moving the optical surface to convert the image projected on the optical surface into a plurality of parallax images. It is characterized by having.

[0006] The three-dimensional image display device of the second aspect is the first aspect.
Wherein the optical system is a movable electrode section that reflects the light on a surface to project an image on the surface.

According to a third aspect of the present invention, there is provided a three-dimensional image display device.
Wherein the optical system is a diffraction grating that transmits the light to project an image on a surface.

[0008] The three-dimensional image display device according to the fourth aspect is the second aspect.
Wherein the control system includes a fixed electrode portion formed adjacent to the movable electrode portion and configured to move the movable electrode portion by electrostatic force generated between the movable electrode portion and the movable electrode portion.

According to a third aspect of the present invention, there is provided a three-dimensional image display device.
Wherein the pixel portion is a field emission type display device having a substrate coated with a phosphor layer, and a field emission portion formed to face the substrate and irradiating the phosphor layer with electrons. .

[0010] The three-dimensional image display device of the sixth aspect is the first aspect.
, Wherein the pixel portion is a liquid crystal display device having two substrates disposed facing each other, an electrode disposed inside the substrate, and a liquid crystal sandwiched between the electrodes. .

Also, as a specific example, as an example, a pixel section which emits light while changing the luminance in accordance with an image signal, and which is disposed opposite to the pixel section and controls the emission direction of the emitted light from the pixel section A light control unit, an input unit for inputting an image signal of a display image including a parallax image to the pixel unit, a movable unit disposed on a side surface of the light control unit, the pixel unit and an adjacent pixel unit A display substrate-side groove provided therebetween, a translation gear disposed on both sides of the movable portion, and power means for driving the translation gear, wherein the movable portion has a groove between the display substrate-side groove and the translation gear. The movable electrode portion is displaced around the display substrate-side groove according to the power means, and the angle between the pixel portion and the light control portion is changed. By changing, from the pixel portion When light is incident on the serial light control unit,
A stereoscopic image display device characterized in that the light emission direction is controlled may be provided.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a stereoscopic display apparatus according to the present invention, a light control element capable of emitting incident light with an inclination changed in an arbitrary direction is used according to a display image. The basic configuration is to control the operation of (1) and give directivity to the display image.

According to a first aspect of the present invention, there is provided a pixel portion which emits light while changing luminance according to an image signal, and which is disposed to face the pixel portion and controls an emission direction of light emitted from the pixel portion. A light control unit, an input unit for inputting an image signal of a display image including a parallax image to the pixel unit, a movable electrode unit disposed on a side surface of the light control unit, and an opposition to the movable electrode unit. A fixed electrode portion, and an electrostatic force generating means for applying a potential difference between the movable electrode portion and the fixed electrode portion to generate an electrostatic force between the movable electrode portion and the fixed electrode portion. When the potential difference is applied to the movable electrode portion and the fixed electrode portion, the movable electrode portion is displaced around the fixed electrode portion in accordance with the electrostatic force, and the light is transmitted from the pixel portion. When light enters the controller,
A three-dimensional display device or a directional display device, wherein a light emission direction is controlled according to an angle between the pixel unit and the light control unit.

According to a second aspect of the present invention, the light control section is constituted by an opening and a light shielding plate, so that light is radiated only to the opening, and the light is irradiated in a direction blocked by the light shielding plate. Eliminating light irradiation gives light directivity.

According to a third aspect of the present invention, the light control section is constituted by an opening and a light reflecting plate, so that light is irradiated in a direction reflected by the light reflecting plate, and the light is reflected in a direction not reflected. By eliminating the irradiation of light, the light has directivity.

According to a fourth aspect of the present invention, the light control section is constituted by a diffraction grating and a support plate supporting the diffraction grating, so that light is irradiated in a direction diffracted by the diffraction grating. By eliminating light irradiation in the direction that is not diffracted, the light has directivity.

According to a fifth aspect of the present invention, the light controller is constituted by a lens and a support plate for supporting the lens, so that light is irradiated in a direction in which the light is refracted by the lens. By irradiating light in the direction where it cannot go, directivity of light is given.

According to a sixth aspect of the present invention, the light control section is constituted by a slit and a support plate supporting the slit, so that light is emitted in a direction that is transmitted by the slit, and the light is transmitted. By irradiating light in the direction where it cannot go, directivity of light is given.

According to a seventh aspect of the present invention, the light control section is constituted by an optical fiber element, so that light is emitted in a direction normal to the end face of the optical fiber element, and light is emitted in other directions. By eliminating, the light has directivity.

According to an eighth aspect of the present invention, when the irradiation light from the pixel section is mixed color, the light control element section changes the color to a desired color.

According to a ninth aspect of the present invention, when one pixel is constituted by the pixel section and the light control section, the pixels are arranged in a matrix in the X and Y directions.
A stereoscopic display device or a directional display device that enables matrix type display.

According to a tenth aspect of the present invention, there is provided a pixel section which emits light while changing luminance according to an image signal, a light control section which can control an emission direction of light emitted from the pixel section, A scanning unit that reflects light from the light source and guides the light to the light control unit, an input unit that inputs an image signal of a display image including a parallax image to the pixel unit, and a movable unit that is disposed on a side surface of the light control unit. An electrode portion, a fixed electrode portion arranged to face the movable electrode portion, and a potential difference between the movable electrode portion and the fixed electrode portion, and an electrostatic force applied between the movable electrode portion and the fixed electrode portion. The pixel unit is arranged in the column direction on the end face of the display device, and when light is irradiated from the pixel unit, the scanning unit is sequentially selected in the row direction. The light is guided to the light control unit, and the movable electrode unit and the fixed The potential difference is given to the portion, the movable electrode portion is displaced around the fixed electrode portion in accordance with the electrostatic force, and when light is incident on the light control portion from the scanning portion, the scanning portion A stereoscopic display device or a directional display device, wherein the number of pixel units is significantly reduced by controlling the light emission direction according to an angle formed by the light control unit and the light control unit.

According to an eleventh aspect of the present invention, there is provided a field sequential display device comprising a glass substrate having a phosphor layer applied to the pixel portion and a field emission portion for irradiating the phosphor with electrons. Thus, color reproducibility can be improved.

According to a twelfth aspect of the present invention, there are provided two glass substrates disposed to face the pixel portion, an electrode disposed inside the glass substrate, and a liquid crystal sandwiched between the electrodes. , The color reproducibility can be improved.

According to a thirteenth aspect of the present invention, directivity and color reproducibility of light can be improved by using a light emitting diode type display device for the pixel portion.

According to a fourteenth aspect of the present invention, by using a laser light source for the pixel portion, the directivity of light can be made very high.

A fifteenth aspect of the present invention is to display a more realistic three-dimensional image by displaying at least two or more parallax images, preferably about 100 parallax images, of the image signal to the pixel portion. it can.

According to a sixteenth aspect of the present invention, all movable parts can be driven uniformly and completely synchronously by displacing the movable parts by mechanical driving means. Also,
Since there is no fixed electrode, the display area of the panel can be increased.

Also, in this embodiment, by giving a strong directivity of light, black vertical stripes (hereinafter, referred to as moiré) or image jumps (hereinafter, referred to as moire) depending on the observation position.
In order to prevent the occurrence of flipping, a certain degree of diffusion can be provided. However, when used as a stereoscopic display device, it is assumed that the images entering the left and right eyes do not completely match.

[0030]

The present invention can be better understood by describing the following illustrative but non-limiting examples. (Embodiment 1) As shown in FIG. 1, a three-dimensional display device according to the present embodiment has a pixel section 11 which emits light while changing the luminance in accordance with an image signal, and is arranged to face the pixel section 11 and Light control unit 1 capable of controlling the emission direction of the light emitted from light source 11
2, an image input unit 18 for inputting an image signal of a display image including a parallax image to the pixel unit 11, a movable electrode unit 13 disposed on a side surface of the light control unit 12, and a movable electrode unit 1.
3, a fixed electrode section 14 disposed opposite to the first electrode section 3, and an electrostatic force generator for applying a potential difference between the movable electrode section 13 and the fixed electrode section 14 to generate an electrostatic force between the movable electrode section 13 and the fixed electrode section 14. Means 19. The operation will be described with reference to FIG.

When a potential difference is applied to the movable electrode portion 13 and the fixed electrode portion 14, as shown in FIG.
3 is displaced around the fixed electrode portion 14 in response to the electrostatic force, and the movable electrode portion 13 changes its inclination as shown in FIGS. 2 (a), 2 (b) and 2 (c). Therefore, when light enters the light control unit 12 from the pixel unit 11, the light emitting direction is also controlled because the angle formed between the pixel unit 11 and the light control unit 12 changes. Thus, for example, by displaying the image for the left eye in the state of FIG. 2A and displaying the image for the right eye in the state of FIG. Therefore, stereoscopic vision becomes possible. In particular, in the present invention, in order to display a parallax image in a time-sharing manner,
No flipping occurs. Also, when the head is stationary,
Moire is unlikely to occur. Whether or not these image quality deteriorations occur is due to the directivity of light, and when the directivity is strong like a laser, the directivity can be controlled by separately providing a diffusive film in the light control unit. .

Hereinafter, one image formed by directional light is referred to as a parallax image. In other words, even in a system in which a plurality of people observe different images without aiming for stereoscopic viewing, an image being observed is called a parallax image regardless of whether it is two-dimensional or three-dimensional.

Here, regarding the directivity required in the present method, since a continuous parallax image is basically displayed by time division, light from one parallax image to the next parallax image is not changed. Continues to be irradiated. But,
When a display method in which no display is performed during the rewriting period of the parallax image is used, flipping or moire may occur as in the conventional display method of forming an image from different light sources. Then, assuming that the characteristic of the directional light is expressed by the following equation (1), the value of m at which image quality does not deteriorate is determined. L (θ) = cos ^m θ --- (1) The directivity of light represented by the equation (1) is schematically represented as shown in FIG. 3, and can be basically determined by the ratio of spread to the irradiation direction. it can. In FIG. 3, the horizontal axis indicates the emission angle, and the vertical axis indicates the relative amount with respect to the emission direction (degree = 0). When the panel is observed from the viewing distance d expressed by the formula (2) with respect to the inter-pixel distance p, the luminance change between adjacent pixels in one parallax image is -40 in the light where m is 108. [dB] or more, moire may occur. d ≦ 10 ⁴ * p −−− (2) Therefore, there is also a problem when observing a single parallax image without aiming for stereoscopic viewing.

In stereoscopic viewing, if light with m being 1 is used, the amount of crosstalk between the left-eye image and the right-eye image increases, making stereoscopic viewing difficult. However, in multi-parallax images, the amount of crosstalk that is a problem
Compared to (comparable to -40 [dB] or less), image synthesis with a high correlation is performed, so that image quality degradation such as ghosting hardly occurs, and a certain amount of crosstalk is allowed.

From the above, it is desirable that the directivity of light in the three-dimensional display system in the present system falls within the range of the following expression. 10 ≦ m ≦ 10 ⁷ (3) However, as will be described in the following examples, even when a light source whose light directivity is out of the range of the expression (3) is used, the directivity after emission from the light control unit is used. When the gender satisfies the expression (3), stereoscopic vision is similarly enabled.

On the other hand, as shown in FIG. 24, when the display device is used as a display device which does not require a three-dimensional object and allows a plurality of people to view different images, the light directivity shown in the first embodiment should be used within the range of the following expression. Is preferred. ^{10 4 ≦ m ≦ 10 7 ---} (4) The reason why has a high directivity, because the display even the loss if slightly deviated from the observation position where the display is performed. On the other hand, as shown in FIG. 25, for multi-parallax stereoscopic display according to the present embodiment, it is desirable to use light having directivity represented by the following equation. 10 ≦ m ≦ 10 ⁴ (5) The reason is that the slight luminance movement of the head does not change the overall luminance, so that flipping is not remarkably observed. However, when the binocular system is assumed, it is desirable that the crosstalk amount between the left and right eye images is -40 [dB] or less. Therefore, the directivity can be enhanced and the range of the expression (4) can be used. .

With the display device of the above embodiment, stereoscopic display with a large number of parallaxes can be performed, so that more realistic stereoscopic vision can be achieved, and the size of the display device, particularly the depth, can be reduced.

Further, even when a display device having low light directivity is used, the light emission direction can be controlled, so that the permissible range for the directivity of the light source can be widened.

In order to use a three-dimensional display device as a television, it is important to reduce the size of the image device as much as possible and to provide a more natural color display. It is possible to obtain a three-dimensional image in which the visual image can be directly viewed. Therefore,
When the display device of the embodiment is applied to a game device and an information tool that need to be given only to a specific person, the size of the image device can be reduced, and more natural color display can be performed. Become.

Further, by displaying a more natural color display and a multi-viewpoint image (at least two or more parallaxes), a more realistic three-dimensional display can be realized, and the size of the display device, particularly the depth, can be reduced. be able to. (Embodiment 2) In the following embodiment, a description will be given focusing on portions different from Embodiment 1.

In the second embodiment, as shown in FIG. 4, the light control section is formed as the opening 41 and the movable electrode section is formed as the light shielding plate 42, so that light is irradiated only to the opening, and the light shielding plate is formed. The light emission direction is controlled by eliminating light irradiation in the direction blocked by the light. The height of the light shielding plate can be determined in a range that satisfies the expression (3) in the first embodiment. For example,
When the horizontal length of the pixel unit 40 is 0.3 [mm],
When the observation is performed from a viewing distance L of 1000 [mm], the light control can be performed by setting the height of the light shielding portion 42 to about 10 [mm].

FIG. 5A shows another modification of the present embodiment. A reflection plate 55 is provided on a portion of the light shielding portion 52 close to the pixel portion 50.
Are arranged to prevent the light from the pixel unit 50 from being directly irradiated on the light shielding plate 52. By using the reflection plate 55 in this way, for example, as shown in FIG. 5B, when the pixel portion 50 is a small area with respect to the opening 51, an image of the pixel portion 50 formed by the reflection plate 55 is formed. The position can determine the position of the light source. Thereby, the emission efficiency from the opening 51 can be made substantially equal to any parallax image.

The reflective plate 55 is formed by depositing a metallic material also serving as an electrode portion on a black polyethylene terephthalate material, or depositing a metallic material on a polyethylene terephthalate material and then depositing a black material on the material. Can be applied. (Embodiment 3) In Embodiment 3, as shown in FIG. 6, the light control section is formed as an opening 61 and the movable electrode section is formed as a light reflecting plate 62, so that light is irradiated only to the opening, Reflector 6
2 controls the direction of light irradiation. As shown in FIG. 7, the operation principle is such that light from the pixel unit 60 arranged obliquely at an angle θ does not strike the light reflection plate 62 because the movable electrode unit 62 having the light reflection function is inclined to the right by θ. Therefore, the light is emitted in the right direction, and the movable electrode portion 62 is inclined vertically by θ / 2, so that the light is emitted in the vertical direction.
It is emitted at an angle of the left direction θ. (Embodiment 4) In Embodiment 4, as shown in FIG. 8, the light control unit is a diffraction grating 81, so that the diffraction grating 81 is irradiated with light, and the light is diffracted by the diffraction grating 81. Is controlled. As shown in FIG. 9, the operation principle is such that the diffraction grating 81 is manufactured by gradually changing the grating interval between the center and the periphery, and the diffraction angle can be changed depending on the location where light is applied. Here, reference numeral 8 denotes a movable electrode portion, and reference numeral 80 denotes a pixel portion.

The control method using the diffraction grating 81 is such that the panel is spread in the vertical direction and bent in the horizontal direction. The pixel section 8
By increasing the directivity of the light emitted from 0, the power of the multi-order diffracted light can be suppressed. (Embodiment 5) In Embodiment 5, as shown in FIG. 10, the light control unit is a lens 101 to irradiate light to the lens, and the lens 101 refracts light to change the light emission direction. Controlling. Here, 100 is a pixel portion, 1
02 is a movable electrode part. As shown in FIGS. 10 (a) to 10 (c), the principle of operation is such that the thickness and the curvature are gradually changed between the center and the periphery of the lens 101, and the refraction angle changes depending on the location where the light is applied. Can be

The control method using the lens 101 is preferably such that the panel is spread in the vertical direction and bent in the horizontal direction. The curvature of the lens 101 can be changed between the pixel portion side and the opposite side.

According to the above embodiment, the same effect as that of the first embodiment can be obtained. (Embodiment 6) In Embodiment 6, as shown in FIG. 11, the light control section is a cross section 111 of the optical fiber 113, and a metal film is deposited on the optical fiber 113. This film is the movable electrode 1
Functions as 12. Thereby, the optical fiber 113
Is inclined, so that the light emission direction is controlled. As shown in FIGS. 11A and 11B, the operation principle is such that the direction of emission of light is controlled by gradually changing the angle of the cross section 111 of the optical fiber 113.

According to this embodiment, the same effect as in the first embodiment can be obtained. (Embodiment 7) In Embodiment 7, as shown in FIG. 12, the light control unit is a slit 101, so that the slit 101 is irradiated with light. Is controlled. here,
Reference numeral 120 denotes a pixel unit, and 122 denotes a movable electrode unit. As shown in FIGS. 12 (a) to 12 (d), the operation principle is such that the thickness and the curvature are gradually changed between the center and the periphery of the lens, and the refraction angle can be changed depending on the location where the light hits. .

According to the above embodiment, the same effect as that of the first embodiment can be obtained. (Eighth Embodiment) In the eighth embodiment, as shown in FIG. 13, white light is emitted from the pixel unit 130 by coloring the light control unit with red, blue, and green necessary for colorization.

For example, in the embodiment constituted by the opening 131 and the light shielding plate 132, red,
Place blue and green colored films.

In the embodiment constituted by the reflecting plate 135, red, blue and green inks are applied to the reflecting surface.

In the embodiment constituted by the diffraction grating, the diffraction grating is a diffraction grating colored red, blue and green.

In the embodiment constituted by lenses, the lenses are colored red, blue and green.

In the embodiment constituted by slits, red, blue and green colored films are arranged on the slits. (Embodiment 9) In Embodiment 9, as shown in FIGS. 14A and 14B, a plurality of pixel units each including a light control unit 151, a movable electrode unit 143, a fixed electrode unit 144, and a pixel unit 140 are provided. It is an example of a configuration in which these are arranged. Since the pixel units are independently arranged, control on a pixel basis is possible. As for the driving method of each unit, the pixel unit 14 for displaying an image is used.
A signal line driving circuit, a signal line 146, a scanning line driving circuit, a scanning line 147, and a switching element 145, which are means for inputting an image signal, input an image signal to each pixel portion and control a light emitting direction. A voltage is applied to the light control unit 151, the fixed electrode unit 144, and the movable electrode unit 143 from the movable electrode drive circuit and the fixed electrode drive circuit, which are electrostatic force generating means, via the movable electrode drive wiring 149 and the fixed electrode drive wiring 148. Is done.

FIG. 15 shows a modification in which the parallax direction is slightly shifted and changed in units of rows, but the parallax direction can be arbitrarily determined in units of columns and pixels. In the case where control is performed on a pixel-by-pixel basis, the light control unit of an adjacent pixel may be hindered. However, as shown in FIG. . Here, 160 is a pixel unit, 161 is a light control unit, 16
Reference numeral 2 denotes a movable electrode unit. FIG. 16 shows an example in which the hatched light control unit 161 enters under the white light control unit.

The driving method in the case of controlling in pixel units is as follows. For example, after scanning in the column direction from the left pixel in the first column of the matrix to the right pixel, scanning is performed in the left pixel of the second column. A method of repeating the scanning method of performing is considered. In this case, as shown in FIG. 17, the display of the next pixel is performed after all the parallax images have been displayed in pixel units. Alternatively, a method of displaying the second parallax image after displaying the first parallax image with all pixels may be used. Here, 179 is a panel in which pixels are arranged in a matrix. Hereinafter, a period in which a parallax image in the same direction is displayed on the entire surface is referred to as a parallax field.

Next, FIG. 18 shows a method of performing control on a column basis. The pixel unit 180 indicated by the dotted line is hidden from this viewpoint by the light control unit 181. In this method, since the parallax images are displayed in units of columns, all the pixels in the column direction display parallax images in the same direction. In this method, the light control unit 181, the movable electrode unit 18, and the fixed electrode unit are connected in the column direction as compared with the case of the pixel unit, so that the fabrication is easier. (Embodiment 10) In Embodiment 10, as shown in FIG. 19A, the pixel unit 190 is arranged in the column direction on the end face of the display device, and when light is irradiated from the pixel unit 190, the scanning unit 194 is moved in the row direction. , And guides light to the opening 191. FIG. 19A shows a reflection-type embodiment, so that light once reflected by the scanning unit is reflected by the reflection plate 192.
To work in the desired parallax direction. In this embodiment, several [μs]
It is desired that the scanning unit operates in accordance with the operation speed of the movable mirror. However, as shown in FIG. 19B, the pixel unit 190 is arranged at one corner of the display device depending on the operation speed of the movable mirror. It is also possible to provide a section 195 and perform scanning also in the row direction to greatly reduce the number of pixels. (Embodiment 11) As shown in FIG. 20, an eleventh embodiment is a field emission type display device comprising a glass substrate having a phosphor layer coated on a pixel portion, and a field emission portion for irradiating the phosphor with electrons. 202 is a configuration example. In the present embodiment, since the light in the phosphor layer has almost no directivity, a combination with a display device in which unit pixels of the structure of the first embodiment using the movable electrode portion 13 serving as a shielding plate are formed in a matrix shape is used. Is desirable. (Embodiment 12) As shown in FIG. 21, Embodiment 12 has two glass substrates having pixel portions arranged to face each other, an electrode arranged inside the glass substrate, and sandwiched between the electrodes. Liquid crystal display device 214 composed of
Is a configuration example. In this embodiment, the directivity can be given by the alignment method of the liquid crystal. Therefore, the combination with any of Embodiments 1 to 8 is possible. (Thirteenth Embodiment) A thirteenth embodiment is a configuration example of a light emitting diode type display device 224 in which light emitting diodes are arranged in a matrix in a pixel portion as shown in FIG. In this embodiment, since the directivity of the light emitting diode can be provided, any combination of any of the first to eighth embodiments is possible. (Embodiment 14) As shown in FIG. 23, Embodiment 14 is an example of a configuration in which the pixel portion is a laser light source display device 244. In this embodiment, a strong directivity such as a semiconductor laser diode is used as a laser light source. Therefore, Embodiment 1
To Example 8 can be combined. Further, in order to prevent moire or flipping due to an increase in directivity, a diffusion film 245 can be provided on the upper surface of the pixel portion. Further, a combination with the tenth embodiment in which the number of light sources is reduced is also effective.

As described above, the present invention mainly describes horizontal parallax. However, vertical parallax can be generated by the same light control function.

The present invention is not limited to each embodiment, but can be implemented in various modifications without departing from the scope of the invention. (Embodiment 15) In Embodiment 15, as shown in FIG. 26 ((a) is a cross-sectional view from the side, and (b) is a conceptual diagram from above), light is emitted while changing luminance according to an image signal. A pixel portion 263 which is disposed opposite to the pixel portion 263;
A light control unit 265 capable of controlling an emission direction of light emitted from the pixel unit 268, an input unit (not shown) for inputting an image signal of a display image including a parallax image to the pixel unit 268,
A movable portion 263 disposed on a side surface of the light control portion 265; and a display substrate side groove 2 provided between the pixel portion 268 and an adjacent pixel portion.
69 and the translation gears 26 arranged on both sides of the movable portion 263
4 and power means for driving the translation gear 264 (not shown)
It is a configuration provided with: With this configuration, the movable unit 2
63 is held at equal intervals by three points of the display substrate side groove and the groove of the translation gear 264, and the movable electrode part 263 is displaced around the display substrate side groove in accordance with the power means, and the movable part is displaced. When light is incident on the light control unit from the pixel unit by changing the angle formed by the light control unit, the light emission direction is controlled.

With the above configuration, the same effects as in the first embodiment can be obtained.

[0060]

According to the present invention, there is provided a three-dimensional image display device capable of maintaining a more natural three-dimensional image by making the three-dimensional image denser by increasing the resolution of the image itself and increasing the number of parallax images. Can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a display device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram illustrating an operation principle of the first embodiment;

FIG. 3 is a diagram illustrating directivity of light according to the first embodiment;

FIG. 4 is a schematic configuration diagram of a display device according to a second embodiment of the present invention.

FIG. 5 is a diagram showing another configuration according to the second embodiment of the present invention;

FIG. 6 is a schematic configuration diagram of a display device according to a third embodiment of the present invention.

FIG. 7 is a diagram illustrating an operation principle of a third embodiment of the present invention.

FIG. 8 is a schematic configuration diagram of a display device according to a fourth embodiment of the present invention.

FIG. 9 is a diagram showing the operation principle of Embodiment 4 of the present invention.

FIG. 10 is a diagram illustrating a configuration diagram and an operation principle of a display device according to a fifth embodiment of the present invention.

FIG. 11 is a diagram illustrating a configuration diagram and an operation principle of a display device according to a sixth embodiment of the present invention.

FIG. 12 is a diagram illustrating a configuration diagram and an operation principle of a display device according to a seventh embodiment of the present invention.

FIG. 13 is a configuration diagram of a display device according to an eighth embodiment of the present invention.

FIG. 14 is an array configuration diagram of a display device according to a ninth embodiment of the present invention.

FIG. 15 is a diagram showing an operation method according to the ninth embodiment of the present invention.

FIG. 16 is a diagram showing an operation method according to a modification of the ninth embodiment of the present invention.

FIG. 17 is a diagram showing a display method according to a modification of the ninth embodiment of the present invention.

FIG. 18 is a diagram showing an array configuration of another modification of the ninth embodiment of the present invention.

FIG. 19 is a diagram illustrating an array configuration diagram of a display device according to a tenth embodiment of the present invention.

FIG. 20 is a diagram showing an array configuration diagram of a display device according to embodiment 11 of the present invention.

FIG. 21 is a diagram illustrating an array configuration diagram of a display device according to a twelfth embodiment of the present invention.

FIG. 22 is a diagram illustrating an array configuration diagram of a display device according to a thirteenth embodiment of the present invention.

FIG. 23 is a diagram showing an array configuration diagram of a display device according to embodiment 14 of the present invention.

FIG. 24 is a diagram illustrating a display method of the display device according to the first embodiment of the present invention.

FIG. 25 is a diagram illustrating a display method of the display device according to the first embodiment of the present invention.

FIG. 26 is a view for explaining a display method of the display device according to Embodiment 15 of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Pixel part 12 Light control part 13 Movable electrode part 14 Fixed electrode part 18 Image input means 19 Electrostatic force generation means

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G09G 3/20 660 G09G 3/20 660X 5G435 3/36 3/36 (72) Inventor Kazuki Taira Yokohama, Kanagawa 33, Shinisogo-cho, Isogo-ku, Toshiba, Japan Toshiba Production Technology Center Co., Ltd. (72) Inventor Masahiro Baba 33, Shinisogo-cho, Isogo-ku, Yokohama-shi, Kanagawa Prefecture Toshiba Production Technology Center Co., Ltd. 33, Shinisogo-cho, Isogo-ku, Yokohama-shi, Japan F-term in Toshiba Production Technology Center (reference) 5C094 AA05 AA12 AA13 AA15 AA48 AA56 BA16 BA23 BA32 BA34 BA43 BA63 BA84 BA92 CA19 CA21 DA01 ED01 ED11 ED20 FA03 GA10 5G435 AA01 AA18 BB02 BB04 BB12 BB17 CC09 CC11 CC12 DD05 DD09 EE14 GG01 GG08

Claims (6)

[Claims] An optical system having a pixel section for emitting light having a luminance corresponding to an image signal, an optical surface disposed opposite to the pixel section for reflecting or transmitting the light and projecting an image on a surface; A stereoscopic image display device, comprising: a control system that converts an image projected on the optical surface into a plurality of parallax images by moving the optical surface. 2. The three-dimensional image display device according to claim 1, wherein the optical system is a movable electrode unit that reflects the light on a surface to project an image on the surface. 3. The three-dimensional image display device according to claim 1, wherein the optical system is a diffraction grating that transmits the light and displays an image on a surface. 4. The control system according to claim 1, wherein said control system includes a fixed electrode portion formed adjacent to said movable electrode portion, said movable electrode portion being moved by electrostatic force generated between said movable electrode portion and said movable electrode portion. 3. The stereoscopic image display device according to 2. 5. The pixel section comprises: a substrate on which a phosphor layer is applied;
2. The three-dimensional image display device according to claim 1, wherein the three-dimensional image display device is a field emission type display device having a field emission portion formed to face the substrate and irradiating the phosphor layer with electrons. 6. The liquid crystal display device according to claim 1, wherein the pixel portion is a liquid crystal display device having two substrates disposed opposite to each other, an electrode disposed inside the substrate, and a liquid crystal sandwiched between the electrodes. The stereoscopic image display device according to claim 1, wherein: