JPH06335030A - Three-dimension display device - Google Patents

Abstract

PURPOSE:To obtain a three-dimension display device in which no black band is visible between parallactic pictures by reaching a light to a non-display space between display spaces existing in a viewing area. CONSTITUTION:The display device is provided with a liquid crystal panel display device 11 having plural display picture elements Dij and non-transmission sections Bij and displaying simultaneously plural parallactic pictures and radiating a light from each picture element, a comb-line diffusion mask 12 mounted on the surface of the liquid crystal panel display device and arranged with the same pitch as a pitch of each picture element corresponding to the on- transmission part of the liquid crystal panel display device and having a strip long diffusion plate Mij receiving part of a light radiating from each picture element and changing an optical path and emitting the result and a lenticular lens 13 comprising an array of cylindrical leses of the same shape and mounted on the surface of the comb-line diffusion mask.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional display device capable of reproducing stereoscopic images without the need for special glasses.

[0002]

2. Description of the Related Art As a conventional three-dimensional display device in which a stereoscopic image can be viewed without glasses, a device using a lenticular lens is known. In particular, it is used in combination with a flat panel display such as a liquid crystal display because the alignment between the lenticular lens and the display pixel is easy and the distance between the display surface and the lenticular lens is short.

Next, as an example of a conventional three-dimensional display device, a direct-view three-dimensional display device in which a lenticular lens is directly attached to a liquid crystal panel display surface will be described.

One cylindrical lens is prepared for a plurality of pixels of the liquid crystal panel. A part of different parallax images is displayed on each of the plurality of pixels. Then, each parallax image is separately collected in a space having an observation region by the function of the cylindrical lens. An observer can observe a stereoscopic image by seeing different parallax images for the right eye and the left eye.

When the pitch of a plurality of pixels of the liquid crystal panel and the pitch of the cylindrical lenses are the same and the shapes of the cylindrical lenses are all the same, the size of the display screen that can be observed is only as large as the distance between the eyes. .

In order to make the display screen larger, it is necessary to collect the light emitted from the periphery of the liquid crystal panel into the observation space (the space defined by the distance between the eyes), and a method for implementing this is shown in FIG. There is a way.

FIG. 10 shows an example of a binocular system, in which a part of the parallax image for the left eye is displayed on the pixel Gi1 of the liquid crystal panel 30 and a part of the parallax image for the right eye is displayed on the pixel Gi2 ( Hereinafter, i indicates i = 1 to n). For the pair of pixels Gi1 and Gi2,
A cylindrical lens Li is placed correspondingly.

The light transmitted through the pixels Gi1 and Gi2 is separated into the space I and the space J of the observation area by the function of the cylindrical lens Li. A stereoscopic image can be observed by bringing the left eye and the right eye into space I and space J, respectively.

In FIG. 10, the shape of each cylindrical lens Li is the same, but the pitch of the pair of pixels Gi1 and Gi2 and the pitch of the cylindrical lens Li are different. The pitch of the cylindrical lens Li is set to be slightly smaller.

In the periphery of the liquid crystal panel 30, the center of the pair of pixels Gin and the corresponding cylindrical lens Li.
The center of is shifted. The amount of deviation increases as it moves closer to the periphery. Due to this shift, the incident angle of the transmitted light of each pixel Gin to the cylindrical lens Li is different between the center and the periphery of the liquid crystal panel 30, so that the transmitted light from the pixel Gin around the liquid crystal panel 30 is in a specific space of the observation area. It can be collected in I and space J.

[0011]

However, in the above-mentioned conventional flat panel display, there is a wiring portion between pixels, and that portion does not transmit light.
Considering that this portion transmits black light, the black light is collected between the space I and the space J, which are specific observation regions, according to the same principle as described above. This means that there is a region between the space I and the space J where the transmitted light from the pixel does not reach.

FIG. 11 shows an example of the configuration of a conventional trinocular flat panel display.

The flat panel display of FIG.
Cylindrical lenses Ri are placed in proximity to the display pixels Qi1, Qi2, Qi3 of the liquid crystal panel 40. Then, the parallax images are formed by being collected in the spaces S, T, and U in the observation region. The wiring portion between the pixels of the liquid crystal panel does not transmit light and serves as a non-transmissive portion Pi.

Due to the non-transmissive portion Pi, a space where light hardly reaches the space in the observation region is formed. That is, the non-display spaces V and W are associated with the non-transmissive portions Pi1 and Pi2.
Is formed.

The non-display spaces V and W appear to the observer as black strips, and the observer moves his / her head to change the stereoscopic image being observed from the combination of the space S and the space T to the space T and the space U.
If you change to a combination of, you will always see a black band that is a hidden part.

FIG. 12 shows the light intensity distribution of the projection pattern in which the transmitted light of each display pixel is gathered by each cylindrical lens Ri on the section plane bb '.

In the state of FIG. 12, the width of the non-display portion is wider than that in the ideal state, and there is a problem that it becomes a great obstacle when trying to see a continuous stereoscopic image.

An object of the present invention is to provide a three-dimensional display device which allows light to reach a non-display space between the display space and the display space existing in the observation area, and a black band cannot be seen between parallax images. It is in.

[0019]

SUMMARY OF THE INVENTION An object of the present invention is to have a plurality of pixels and a non-transmissive portion, display a plurality of parallax images at the same time and emit light from each pixel, and a display means. Mounted on the surface of the display means, and arranged at the same pitch as the pitch of each pixel corresponding to the non-transmissive part of the display means. A part of the light emitted from each pixel is incident on the optical path of the incident light. The present invention is achieved by a three-dimensional display device including mask means having a non-opening portion which is changed and emitted, and lens means which is composed of an array of cylindrical lenses of the same shape and is mounted on the surface of the mask means.

The three-dimensional display device of the present invention may be configured such that the non-opening portion of the mask means has a light-shielding film that reduces the non-display space corresponding to the non-transmissive portion of the display means.

[0021]

In the three-dimensional display device of the present invention, the display means has a plurality of pixels and a non-transmissive portion, simultaneously displays a plurality of parallax images and emits light from each pixel, and the mask means displays It is mounted on the surface of the means and is arranged at the same pitch as the pitch of each pixel corresponding to the non-transmissive part of the display means, and the non-aperture part makes part of the light emitted from each pixel enter and enters. The lens means, which is formed by an array of cylindrical lenses of the same shape and is emitted while changing the optical path of the generated light, is attached to the surface of the mask means, and the emitted light from the adjacent display pixels is distributed to different spaces.

In the three-dimensional display device of the present invention, the light-shielding film arranged in the non-opening portion of the mask means reduces the non-display space corresponding to the non-transmissive portion of the display means.

[0023]

Embodiments of the three-dimensional display device of the present invention will be described below with reference to the drawings.

FIG. 1a is a sectional view showing the structure of the first embodiment of the three-dimensional display device of the present invention.

FIG. 1b is an enlarged view of the main part of FIG. 1a.

FIG. 1a shows a direct view type three-lens type three-dimensional display device in which a lenticular lens is placed on the front surface of a liquid crystal panel.

The three-dimensional display device of FIG. 1a is a liquid crystal panel display 11 which simultaneously displays a plurality of parallax images and emits light from each pixel, and a liquid crystal panel display 11 mounted on the surface of the liquid crystal panel display 11. A comb diffusion mask 12 having a strip-shaped long diffusion plate that emits part of the light emitted from each pixel by changing the optical path of the incident light and the comb diffusion mask 12.
And a lenticular lens 13 that emits the light emitted from the device to the non-display space corresponding to the wiring portion of the liquid crystal panel display 11.

In an actual device, a display illumination light source is placed on the back surface of the liquid crystal panel 11, but the illustration is omitted in FIG. 1a.

Although a liquid crystal panel is used as the image display panel in the embodiment of FIG. 1a, a flat panel display such as an electro luminescence (EL) panel, a plasma display, a light emitting diode (LED) array is used as the image display panel. It can be used and then does not require a display illumination source.

Although a color liquid crystal panel is used as the liquid crystal panel 11, the arrangement of the color filters of the liquid crystal panel 11 is the same as the longitudinal direction (vertical direction) of the lenticular lens 13 so that color images are not separated by the action of the lens. To

The lenticular lens 13 is an array of cylindrical lenses. Lenticular lens 1 in FIG.
Reference numeral 3 represents a cross section of an array of cylindrical lenses elongated in the direction perpendicular to the plane of the drawing. Lenticular lens 13
Is made of a plastic material such as acrylic or vinyl chloride, and is formed into a shape in which cylinders having a preset radius of curvature are arranged in a horizontal direction, and its thickness is focused on the liquid crystal panel 11. Is set to.

The comb type diffusion mask 12 is used for the liquid crystal panel 11.
By arranging an extremely thin and vertically long diffusion plate (hereinafter referred to as a long diffusion plate) having the same width as the wiring portion (non-transmissive portion) of the liquid crystal panel 11 at the same pitch as the display pixel pitch of the liquid crystal panel 11. Composed.

That is, the comb diffusion mask 12 has a structure in which thin vertical stripe slits are arranged in the horizontal direction.
The two non-opening portions are long diffusion plates, the width of which is the same as the wiring portion of the liquid crystal panel 11, and the long diffusion plate (non-opening portion) is located just in front of the wiring portion of the liquid crystal panel 11. They are placed in close contact and are made of materials such as plastic, glass, and transparent ceramics. Also, the thinner the comb diffusion mask 12 is, the better it is. However, when the comb diffusion mask 12 is extremely thin, the diffusion effect is lost. Therefore, it is determined by the degree of diffusion of the long diffusion plate.

The embodiment shown in FIG. 1a is a trinocular type in which three different parallax images are displayed, and the display pixel D of the liquid crystal panel 11 is displayed.
Some of the images with parallax are respectively displayed on i1, Di2, and Di3 (hereinafter, i indicates i = 1 to n). Display pixel D
Lenticular lens 13 for 1 set of i1, Di2, Di3
The cylindrical lenses Li inside correspond and are placed in close contact. The light transmitted through the display pixels Di1, Di2, Di3 is transmitted through the openings Si1, Si2, Si3 of the comb diffusion mask 12, respectively, and by the action of the cylindrical lens Li, the space A, the space B, and the space C of the observation area are obtained. Is separated into
Projected.

The distance between the centers of the respective spaces is set to the average human eye distance (about 65 mm). For example, the observer can observe a stereoscopic image by bringing the left eye and the right eye into the space A and the space B, respectively.

At this time, a part of the light transmitted through the display pixels Di1, Di2, Di3 is a non-opening portion M of the comb diffusion mask 12.
It is incident on (i-1) 3, Mi1, Mi2, Mi3. The non-opening portion of the comb type diffusion mask 12 is a long diffusion plate, and the light incident on this long diffusion plate portion ideally exits in all directions.
Therefore, the lights emitted from the long diffusion plates Mi1 and Mi2 reach the space D and the space E, respectively. That is, the area that was the non-display space in the conventional example becomes the display space.

In this embodiment, when the observation surface aa 'within the observation area is set, the light intensity distribution on the observation surface aa' is as shown in FIG.

In the area where the two curves are overlapped, it is shown that the lights from the two directions are overlapped. Therefore, the total light intensity in this area is the sum of the respective light intensities. Therefore, FIG. 2 shows that even in the spaces D and E, the light of almost the same intensity as the spaces A, B, and C has arrived. In such a state, even when the observer moves his / her head to change the stereoscopic image being observed from the combination of the space A and the space B to the combination of the space B and the space C, the black band (non-display portion ) Never see.

The light intensity distribution as shown in FIG. 2 can be realized by changing the thickness and the radius of curvature of the lenticular lens 13, but in that case, there is the disadvantage that the image is blurred in exchange for eliminating the black band. Occurs.

FIG. 3 is an enlarged partial view of the first embodiment shown in FIG. 1, showing that the long diffusion plates Mi1 and Mi2 are placed in front of the wiring parts Bi1 and Bi2 of the liquid crystal panel 11. There is.

Next, a second embodiment of the three-dimensional display device of the present invention will be described with reference to FIGS.

In this embodiment, a part of the liquid crystal panel and the comb type diffusion mask is enlarged.

In FIG. 4, a transparent material such as glass or a plastic material is used for the portion of the comb diffusion mask 12 that is not the long diffusion plate (the portion that transmits light). By using a transparent material for the portion that transmits light, the long diffusion plate can be held and the entire molding becomes easy. If the material of the transparent material is the same as the material of the lenticular lens 13, the thickness of the lenticular lens 13 designed for the three-dimensional display device is reduced by the thickness d of the comb diffusion mask 12. The object of the invention can be achieved, and the lenticular lens 13 can be easily designed.

Further, since the comb-shaped diffusion mask 12 and the lenticular lens 13 have the same refractive index, no reflection occurs at the interface between the comb-shaped diffusion mask 12 and the lenticular lens 13, and the light can be effectively used. .

FIG. 5 shows the configuration of the third embodiment of the three-dimensional display device of the present invention.

The three-dimensional display device of FIG. 5 is constructed such that a diffusion plate 14 having the same size as the screen size of the liquid crystal panel 11 is placed in front of the liquid crystal panel 11 instead of the comb diffusion mask.

In this embodiment, the stereoscopic image is blurred around the stereoscopically visible area, but this is the simplest structure for achieving the purpose of eliminating the non-display space formed between the display spaces. . The thickness of the diffusion plate 14 is determined by the degree of diffusion of the material used for the diffusion plate 14. At this time, the lenticular lens 13 is designed to focus on the surface of the diffusion plate 14.

FIG. 6 shows the structure of the fourth embodiment of the three-dimensional display device of the present invention.

The three-dimensional display device shown in FIG. 6 has a structure in which a comb diffusion mask is embedded in the lenticular lens 13.

FIG. 6 shows the case of the twin-lens type, in which the pitch of the lenticular lens 13 is smaller than the pitch of the display pixels Dij of the liquid crystal panel 11, but the pitch of the long diffusion plate embedded therein is of the liquid crystal panel 11. It is the same as the pitch of the display pixel Dij. That is, the pitch of the lenticular lens 13 and the pitch of the embedded long diffusion plate are different.

In each of the above-described embodiments, the alignment of the comb type diffusion mask or diffusion plate and the lenticular lens must be performed independently for the liquid crystal panel, but in this embodiment, the alignment of the lenticular lens is performed. The advantage is that you only have to do it.

FIG. 7a shows the configuration of the fifth embodiment of the three-dimensional display device of the present invention.

FIG. 7b is an enlarged view of a portion of FIG. 7a.

FIG. 7A shows a case of a three-lens type, in which the three-dimensional display device is a liquid crystal panel 21 and a comb type diffusion mask 2.
2. It is composed of the lenticular lens 23,
A long diffusion plate Mij (hereinafter j = 1,
2 and 3) is provided with a light-shielding film Cij, which is different from the above-described embodiments.

Next, the function of the light shielding film Cij will be described.

In the embodiment of FIG. 1a, as shown in FIG.
In the spaces D and E, the black band can be erased, and it is possible to reduce the obstacles when moving the observation area. However, in the spaces D and E, the light for the right eye and the light for the left eye also reach. Therefore, a correct stereoscopic image cannot be seen in this portion (hatched portion in the figure).

The cause of this is that, as shown in FIG. 1a, the transmitted light from both sides is incident on the long diffusion plate of the comb diffusion mask 12. For example, the transmitted light from the display pixel Di1 and the transmitted light from the display pixel Di2 are incident on the long diffusion plate Mi1. The two transmitted lights are incident on the long diffusion plate at different angles, but when they are emitted by the long diffusion plate, they cannot be distinguished from each other.

That is, as shown in FIG. 2, the image observed in the space D is a mixture of the image observed in the space A and the image observed in the space B, and a correct stereoscopic image is obtained. It is the cause of not being able to see.

In the embodiment shown in FIG. 7, the long diffusion plate Mij is divided into two parts MijL and MijR by providing the light shielding film Cij in the long diffusion plate Mij.

An enlarged view of the liquid crystal panel 21 and the comb type diffusion mask 22 of this embodiment is shown in FIG.

With the structure shown in FIG. 8, only the transmitted light from the display pixel Di1 is incident on the long diffusion plate Mi1L, and only the transmitted light from the display pixel Di2 is incident on the long diffusion plate Mi1R. As a result, the light emitted from the long diffusion plate is also separated into the light corresponding to the transmitted light from the display pixel Di1 and the light corresponding to the transmitted light from the display pixel Di2. That is, the image observed in the space D is ideally the same as the image observed in the space A from the dotted line to the left and the space B from the dotted line to the right.
It will be the same as the image observed in.

In this embodiment, when the observation surface aa 'within the observation area is set, the light intensity distribution on the observation surface aa' is as shown in FIG.

Due to the function of the light-shielding film Cij, the area where the right-eye image and the left-eye image coexist (hatched portion in the figure) is significantly narrowed compared to FIG. 2, and the space in which stereoscopic vision is possible is the space D, It can be seen that it extends to the region of space E.

In FIG. 9 as well, there is still an area (shaded area in the figure) in which the image for the right eye and the image for the left eye coexist, but this is a straight line with an arc centered at the observer and having a radius of the observation distance. This occurs because of the approximation, and in order to completely eliminate this, the entire display may be formed in an arc shape, or the pitch of the lenticular lens 23 or the liquid crystal panel 21 may be set at non-uniform intervals. However, for the purpose of reducing obstacles when moving the observation region, it is sufficient to provide the comb diffusion mask 22.

The configuration of the embodiment shown in FIGS. 7 to 9 can also be applied to the embodiments of FIGS. 3 to 6 described above. That is, in each of the embodiments, a light-shielding film can be provided in a portion of the diffusion material corresponding to the wiring portion of the liquid crystal panel, and as a result, the black band can be eliminated without blurring the image. You can

As described above, in the three-dimensional display device of the present invention, a plurality of parallax images for each pixel are intermixed and displayed on the flat panel display, and one set is provided for one cylindrical lens that constitutes the lenticular lens. The plurality of pixels are associated with each other to separate the light emitted from each pixel to form a projection pattern of each parallax image.
At this time, part of the light emitted from the pixel is connected to the vertical wiring portion (non-transmissive portion) of the flat panel display.
It impinges on a strip-shaped diffuser plate arranged in front of the.

Since the band-shaped diffusion plate is arranged in front of all vertical wiring portions (non-transmissive portions) of the flat panel display, the pitch of the entire diffusion plate is the same as the pixel pitch of the flat panel display. And
It also serves as a comb type diffusion mask with a comb-shaped non-opening (diffusion plate).

Since the light path of the light incident on the diffuser plate is changed by the diffuser plate, the light emitted from the diffuser plate is a space in the observation area where the light from the pixel would not reach without the diffuser plate. To reduce the non-display space (the space corresponding to the wiring part of the flat panel display). Therefore, the observer does not see the black band that hinders stereoscopic vision when moving the observation position.

In the three-dimensional display device of the present invention, the opening of the comb diffusion mask described above is made of a transparent material to facilitate the maintenance and molding of the structure.

When the refractive index of the transparent material is the same as the refractive index of the lenticular lens, the thickness of the lenticular lens is reduced by the thickness of the comb diffusion mask so that the pixel of the flat panel display can be obtained. For the light that does not enter the diffuser plate, the same condensed state as that without the comb diffusion mask can be realized.

In the three-dimensional display device of the present invention, a plurality of parallax images for each pixel are interwoven and displayed on a flat panel display, a diffuser plate is disposed on the front surface of the entire screen, and a lenticular lens is provided on the front surface. Deploy. At this time, one set of a plurality of pixels is made to correspond to one cylindrical lens constituting the lenticular lens, and the light emitted from each pixel is separated,
A projection pattern of each parallax image is formed.

The image on the flat panel display is once projected on a diffusion plate arranged between the flat panel display and the lenticular lens. In the image projected on the diffuser plate, the boundary between a pixel and the pixel next to it becomes unclear.Therefore, when forming the projection pattern of each parallax image, the boundary of the light separated by the lenticular lens is also included. Become unclear. Therefore, the observer does not see the black band that hinders stereoscopic vision when moving the observation position.

In the three-dimensional display device of the present invention, the comb diffusion mask and the lenticular lens described above are integrated. That is, at the time of molding the lenticular lens, a diffusion plate previously formed in a strip shape is embedded at the display pixel pitch of the flat panel display at the same pitch as the contact surface side of the flat panel display of the lenticular lens, or diffused so as to form a strip shape. A solid structure is obtained by injecting the substance. The optical path of the light emitted from the lenticular lens is the same as that of the above-mentioned three-dimensional display device.

When the comb diffusion mask and the lenticular lens have different structures, the flat panel display and the comb diffusion mask, and the comb diffusion mask and the lenticular lens must be aligned independently. Positioning is facilitated by making the integrated structure.

Further, in the three-dimensional display device of the present invention, the light-shielding film is inserted into the strip-shaped diffuser plate which constitutes the above-mentioned comb-shaped diffuser mask. Since the band-shaped diffusion plates are arranged at the same pitch as the pixel pitch of the flat panel display, the light shielding film is also arranged at the same pitch as the pixel pitch of the flat panel display. This light-shielding film separates one strip-shaped diffusion plate into two parts. The light emitted from the diffuser plate reaches the space where the light from the pixel did not reach in the observation area by the lenticular lens in the observation area, and the non-display space (the space corresponding to the wiring part of the flat panel display). ) Is decreased, but at this time, since the diffuser plate is divided into two, the light (light for the left eye) incident from the right side of the diffuser plate is incident on the left side of the space and from the left side of the diffuser plate. The light (light for the right eye) is separately focused to the right in the space. That is, the lenticular lens allows the light to reach the space where the light from the surface pixels did not reach without the mask means. Further, the light emitted from the adjacent display pixels is distributed to different spaces.

Therefore, when the observer moves the observation position, the observer does not see the black band which hinders the stereoscopic vision, and the stereoscopically visible region expands in the horizontal direction. That is, by placing the light-shielding film in the diffusion plate, an effect equivalent to horizontally reducing the wiring portion of the flat panel display and horizontally enlarging the display pixel portion can be obtained.

Also, in the three-dimensional display device of the present invention, in the above three-dimensional display device, a light-shielding film is inserted into the diffusion plate so that the light-shielding film has the same pitch as the pixel pitch of the flat panel display. Deploy. The characteristics of the three-dimensional display device described above can be added by the inserted light shielding film.

[0078]

The three-dimensional display device of the present invention has a plurality of pixels and a non-transmissive portion, displays a plurality of parallax images at the same time, and emits light from each pixel, and the display means. They are mounted on the surface and are arranged at the same pitch as the pitch of each pixel corresponding to the non-transmissive part of the display means. A part of the light emitted from each pixel is incident and the optical path of the incident light is changed. Since the mask means having a non-opening portion for emitting the light and the lens means constituted by an array of cylindrical lenses of the same shape and mounted on the surface of the mask means are provided, the non-display space can be reduced. As a result, the observer does not see a black band that hinders stereoscopic vision when moving the observation position.

In the three-dimensional display device of the present invention, the non-opening portion of the mask means has the light-shielding film for reducing the non-display space corresponding to the non-transmissive portion of the display means, so that the non-opening portion is set to 2
It is possible to expand the observation region of the stereoscopic image by separating the light into two parts and separating the light from two different pixels entering the non-opening part when it is emitted from the non-opening part.

[Brief description of drawings]

FIG. 1a is a sectional view showing the configuration of a first embodiment of a three-dimensional display device of the present invention.

FIG. 1b is an enlarged view of a part of the three-dimensional display device of FIG. 1a.

2 is an explanatory diagram of light intensity of the three-dimensional display device of FIG.

FIG. 3 is an enlarged cross-sectional view showing the configuration of a second embodiment of the three-dimensional display device of the present invention.

FIG. 4 is an enlarged cross-sectional view showing the configuration of a third embodiment of the three-dimensional display device of the present invention.

FIG. 5 is an enlarged cross-sectional view showing the configuration of the fourth embodiment of the three-dimensional display device of the present invention.

FIG. 6 is an enlarged cross-sectional view showing the configuration of a fifth embodiment of the three-dimensional display device of the present invention.

FIG. 7a is a sectional view showing the structure of a sixth embodiment of the three-dimensional display device of the present invention.

7b is an enlarged view of a part of the three-dimensional display device of FIG. 7a.

8 is an enlarged cross-sectional view of the three-dimensional display device of FIG.

9 is an explanatory diagram of light intensity of the three-dimensional display device of FIG.

FIG. 10 is a cross-sectional view showing a configuration example of a conventional twin-lens type three-dimensional display device.

FIG. 11 is a cross-sectional view showing a configuration example of a conventional three-lens type three-dimensional display device.

12 is an explanatory diagram of light intensity of the conventional three-lens type three-dimensional display device of FIG.

[Explanation of symbols]

11 Liquid crystal panel 12 Comb type diffusion mask 13 Lenticular lens Li Cylindrical lens constituting lenticular lens Dij Display pixel Bij Wiring part (non-transmissive part) Sij Comb type diffusion mask opening Mij, MijL, MijR Long diffusion plate

Claims (2)

[Claims] 1. A plurality of pixels and a non-transmissive portion are provided,
Display means for displaying a plurality of parallax images at the same time and emitting light from each pixel, and the same as the pitch of each pixel, which is mounted on the surface of the display means and corresponds to the non-transmissive portion of the display means. An array of mask lenses, which are arranged at a pitch and have a non-opening portion that receives a part of the light emitted from each pixel and changes the optical path of the incident light to emit the light, and an array of cylindrical lenses of the same shape. A three-dimensional display device, comprising: a lens means that is configured and is mounted on the surface of the mask means. 2. The three-dimensional display device according to claim 1, wherein the non-opening portion of the mask means has a light-shielding film that reduces the non-display space corresponding to the non-transmissive portion of the display means. .