WO2006001158A1 - 立体的二次元画像表示装置及び立体的二次元画像表示方法 - Google Patents
立体的二次元画像表示装置及び立体的二次元画像表示方法 Download PDFInfo
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- WO2006001158A1 WO2006001158A1 PCT/JP2005/009936 JP2005009936W WO2006001158A1 WO 2006001158 A1 WO2006001158 A1 WO 2006001158A1 JP 2005009936 W JP2005009936 W JP 2005009936W WO 2006001158 A1 WO2006001158 A1 WO 2006001158A1
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- dimensional image
- lens
- stereoscopic
- image display
- array
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/305—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/322—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using varifocal lenses or mirrors
Definitions
- the present invention relates to a stereoscopic two-dimensional image display device and a stereoscopic two-dimensional image display that display a stereoscopic two-dimensional image with a sense of depth by forming a two-dimensional image in space. Regarding the method.
- Image display devices include various devices such as home TVs, amusement game devices, training simulators, medical surgery support systems, architectural landscape simulations, mobile phone displays, etc. Used in the field. In recent years, in image display devices used in these fields, in order to improve amusement and visibility, development of stereoscopic display technology that can provide a high sense of presence has been attempted. Stereoscopic display devices can be broadly classified into those using parallax information and those using depth information. Those using disparity information can be further divided into those using polarized glasses and those not using them.
- a lenticular lens method that uses polarized glasses in the parallax information method, where multiple screens are latent on one screen, and a semi-cylindrical lens of a certain width is connected horizontally.
- polarized glasses By viewing multiple screens through a transparent screen, it is possible to express 3D and moving images.
- stripe images alternately arranged from the left and right parallax images corresponding to both eyes of the viewer are supplied to both eyes of the viewer using a lenticular lens to recognize the stereoscopic image! / (For example, refer to Patent Document 1).
- the lenticular lens method since the lenticular lens method has a plurality of latent images on one screen, it requires computer image processing, lenticular lens design, and an accurate combination of the lens and the image, and tends to be expensive. is there. In addition, there is a method of displaying all three-dimensional coordinate information using depth information, but the amount of information becomes large.
- the stereoscopic two-dimensional image display device 1 includes a display unit 3 that displays a two-dimensional image including a stereoscopic image on a planar image display surface 3a, and a space apart from the image display surface 3a.
- An imaging plane 7 of a real image (imaging) of a two-dimensional image is generated in a space that is arranged and includes a microlens array 5 including a plurality of lenses and is located on the opposite side of the display unit 3. According to this three-dimensional two-dimensional image display device 1, it was possible to obtain a sense of reality with a very simple configuration.
- Patent Document 1 Japanese Patent Laid-Open No. 10-221644
- the conventional stereoscopic two-dimensional image display device described above has a problem in that the distance between the microlens array and the stereoscopic two-dimensional image (ie, the amount of protrusion), the stereoscopic two-dimensional image, and the like. Size (enlargement / reduction ratio) force Since it is fixed depending on the microlens array, the embossing amount is increased to improve the stereoscopic effect, or the stereoscopic two-dimensional image is enlarged to improve the force. As a result, there was a limit in enhancing the expressiveness of the difference in depth and improving the sense of reality by using a stereoscopic two-dimensional image. In addition, since the distance between the microlens array and the stereoscopic two-dimensional image is fixed, the stereoscopic two-dimensional image cannot be formed at a short distance, or the stereoscopic two-dimensional image can be reduced and displayed. I helped.
- the embossing amount is increased to improve the stereoscopic effect, or the stereoscopic two-dimensional image is enlarged to improve the force.
- the embossing amount is increased to improve the stereoscopic effect, or the stereoscopic two-dimensional image is enlarged to improve the force.
- the stereoscopic two-dimensional image display device includes a display unit including an image display surface for displaying a two-dimensional image, and a space between the image display surface and the image display surface.
- a stereoscopic two-dimensional image display device comprising a microlens array that forms an image of emitted light and displays a stereoscopic two-dimensional image, wherein the display unit and the stereoscopic two-dimensional image
- the distance between the microlens array and the stereoscopic two-dimensional image or the magnification of the stereoscopic two-dimensional image by refracting the light beam between It is characterized by changing one side.
- the three-dimensional two-dimensional image display method displays the two-dimensional image on the image display surface of the display unit, and the microlens array arranged on the image display surface so as to be spaced apart.
- at least one of a distance between the microlens array and the stereoscopic two-dimensional image or a magnification of the stereoscopic two-dimensional image is changed.
- FIG. 1 is a schematic configuration diagram of a conventional stereoscopic two-dimensional image display device.
- FIG. 2 is a schematic configuration diagram of a first embodiment of a stereoscopic two-dimensional image display device according to the present invention.
- FIG. 3 is a partially enlarged view showing a modification of the microlens array.
- ⁇ 4 It is a schematic configuration diagram of a modified example provided with a convex lens.
- FIG. 5 is a schematic configuration diagram of a modified example in which a convex lens is provided between the display unit and the microlens array.
- FIG. 6 is a schematic configuration diagram of a modified example in which a concave lens is provided between a display unit and a microlens array.
- FIG. 7 is a schematic configuration diagram of a stereoscopic two-dimensional image display device according to a second embodiment including a variable focus lens.
- FIG. 8 is an explanatory diagram showing the front view of the variable focus lens in (a), the cross section in (b), and the refractive index distribution in the diameter direction in (c).
- FIG. 9 is an explanatory view of a modified example of the variable focus lens in which a configuration in which a fixed lens is provided on the outside of the liquid crystal is shown in (a), and a configuration in which the fixed lens is provided on the inside is shown in (b).
- FIG. 10 is a schematic configuration diagram of a stereoscopic two-dimensional image display device according to a third embodiment in which the lens pitch of the front lens array half is set smaller than that of the rear lens array half.
- FIG. 11 is a schematic configuration diagram of a stereoscopic two-dimensional image display device according to a third embodiment in which the lens pitch of the front lens array half is set larger than that of the rear lens array half.
- FIG. 12 is an explanatory diagram showing examples of combinations of lens pitches of front and rear lenses (a) to (c).
- FIG. 13 is an explanatory view showing a configuration example of a microlens array and a decentered optical system used in a stereoscopic two-dimensional image display apparatus according to a fourth embodiment.
- FIG. 14 The microlens array and eccentricity variable element of the stereoscopic two-dimensional image display apparatus according to the fifth embodiment are (a), the refractive index distribution of the eccentricity variable element is (b), and the eccentricity is variable.
- FIG. 5C is an explanatory diagram showing the configuration of the variable quantity element in (c).
- FIG. 15 is an explanatory diagram of a modified example provided with an additional lens for improving the appearance of the periphery.
- FIG. 16 is an operation explanatory diagram of a borderless multi-screen according to the present invention.
- FIG. 17 is an explanatory diagram showing the magnitude relationship between the display unit, the microlens array, and the light refraction means.
- FIG. 18 is a schematic configuration diagram of a modified example in which a fixed-focus lens is provided between a display unit and a microlens array, and lens moving means for moving the fixed-focus lens is provided.
- 11 is a display unit
- 11a is an image display surface
- 13 is an image display surface
- 61, 71 and 81 are microlens arrays
- 15 is a two-dimensional image
- 17 is a light refracting means
- 41 is a focal point.
- FIG. 2 is a schematic configuration diagram of the first embodiment of the stereoscopic two-dimensional image display device according to the present invention
- FIG. 3 is a partially enlarged view showing a modification of the microlens array.
- a stereoscopic two-dimensional image display device 100 includes a display unit 11 having an image display surface 11a for displaying a two-dimensional image, a microlens array 13 spaced from the image display surface 11a, and a display.
- a light refraction means 17 disposed between the unit 11 and the stereoscopic two-dimensional image 15.
- the stereoscopic two-dimensional image display device 100 has an image display screen as a basic operation. The light emitted from 11a is imaged by the microlens array 13, and a stereoscopic two-dimensional image 15 is displayed.
- the display unit 11 includes a color liquid crystal display device (LCD) (not shown) having a flat image display surface 11a, a color / crite illumination unit, and a color liquid crystal drive circuit.
- LCD color liquid crystal display device
- the color liquid crystal drive circuit outputs a display drive signal to the LCD based on the input video signal, and displays a stereoscopic two-dimensional image having a sense of depth on the image display surface 11a.
- the microlens array 13 has at least the same effective area as the area of the image display surface 11a. As will be described later, the microlens array 13
- the light refracting means 17 preferably has an effective area larger than that of the image display surface 11a.
- the microlens array 13 is formed, for example, by integrating two lens array halves 19 and 21.
- Each of the lens array halves 19 and 21 has a plurality of micro-convex lenses 23 arranged in an array on both surfaces of a transparent substrate made of glass or resin having excellent translucency, thereby forming a lens array surface on the surface. It is a thing.
- each micro-convex lens 23 formed on one surface is adjusted to be the same as the optical axis of the micro-convex lens 23 on the other surface formed at the opposite position, and between the lens array halves 19, 21
- the adjacent micro-convex lenses 23 are superposed so that their optical axes are also the same. It should be noted that in this specification, an example of using a micro-mouth lens array in which a lens array surface is formed on any one of the surfaces (a total of four surfaces) of two lens array halves is described. This is not the only lens array configuration! /.
- the microlens array 13 is arranged at a position separated from the image display surface 11a of the display unit 11 by a predetermined distance (the working distance of the microphone port lens array 13).
- This microlens array 13 forms an image of light corresponding to an image emitted from the image display surface 11a of the display unit 11 on a stereoscopic image display surface 25 separated by a predetermined distance on the side opposite to the image display surface 11a.
- the image displayed on the image display surface 11a is displayed on the stereoscopic image display surface 25 which is a two-dimensional plane in space.
- This formed image is a force that is a two-dimensional image. If the image has a sense of depth, or the background image on the display is black, the contrast is emphasized.
- the observer 27 in the front looks as if the stereoscopic image is being projected. That is, the two-dimensional image displayed on the stereoscopic image display surface 25 is recognized by the observer 27 as the stereoscopic two-dimensional image 15.
- This stereoscopic two-dimensional image 15 is a plane that is virtually set in space and is a plane in space that is defined according to the working distance of the microlens array 13 that is not an entity.
- an opening is provided on the front surface of a housing (not shown) so that an image displayed on the stereoscopic image display surface 25 can be seen from the front.
- the microlens array 13 it is desirable that light corresponding to an image incident from the display unit 11 is incident from the lens array half 19, inverted once inside, and then emitted from the lens array half 21. As a result, the microlens array 13 can display the two-dimensional image displayed on the display unit 11 as an upright three-dimensional two-dimensional image 15 on the three-dimensional image display surface 25.
- the microlens array 13 is formed by integrating the lens array halves 19 and 21 as a pair, but is not limited to this and may be configured as a single sheet. It may be composed of two or more sheets.
- the image-corresponding light is transmitted through the single micro convex lens 23a shown in FIG. 3 (a), or the three micro convex lenses 23b, 23c and 23d shown in FIG. Even when light is transmitted, the incident light is inverted once inside and then emitted so that it is displayed as an upright stereoscopic two-dimensional image 15.
- the distance from the display unit 11 to the microphone opening lens array 13 and the distance from the microlens array 13 to the stereoscopic image display surface 25 are usually equal. Further, with the optical action of the microlens array 13 alone, the display magnification of the stereoscopic two-dimensional image 15 is usually equal.
- a light beam is provided between the display unit 11 and the stereoscopic image display surface 25 (stereoscopic two-dimensional image 15), more specifically, between the microlens array 13 and the stereoscopic image display surface 25.
- a refracting means 17 is provided.
- the light refracting means 17 acts to change the distance between the microlens array 13 and the stereoscopic image display surface 25 by refracting the light. This ray
- a lens can be preferably used. In the illustrated example, a concave lens 29 is used.
- the microlens array 13 force which is originally set equal to the distance from the display unit 11 to the microlens array 13, can also increase the distance to the stereoscopic image display surface 25. it can. This makes it possible to increase the amount of protrusion.
- the magnification of the three-dimensional two-dimensional image 15 can be changed by refracting the light. That is, by using the light refracting means 17, the light between the display unit 11 and the stereoscopic image display surface 25 is refracted to change the distance from the microlens array 13 to the stereoscopic image display surface 25, or A stereoscopic two-dimensional image display method in which the magnification of the three-dimensional image 15 is changed becomes possible.
- a microlens is obtained by refracting a light beam between the display unit 11 and the stereoscopic two-dimensional image 15. Since the light refracting means 17 for changing the distance between the array 13 and the stereoscopic two-dimensional image 15 is provided, the microlens array 13 and the stereoscopic two-dimensional image 15 fixed conventionally depending on the microlens array are provided. The distance between the two (ie, the amount of protrusion) can be changed by the tracking of the light refracting means 17.
- the embossing amount can be increased to improve the stereoscopic effect, and conversely, the three-dimensional two-dimensional image 15 can be formed at a short distance to make the apparatus thinner. As a result, it is possible to enhance the expressive power and further improve the sense of reality by the stereoscopic two-dimensional image 15.
- the stereoscopic two-dimensional image display device 100 and the stereoscopic two-dimensional image display method since the light refracting means 17 is provided, conventionally, the stereoscopic three-dimensional image is fixed depending on the microlens array.
- the magnification of the target two-dimensional image 15 can be changed by the tracking of the light refracting means 17, and the three-dimensional two-dimensional image 15 is enlarged to improve the force, or conversely, the three-dimensional two-dimensional image 15 is reduced.
- the housing can be miniaturized and the device cost can be reduced. As a result, it is possible to enhance the expressive power and to further improve the sense of presence due to the stereoscopic two-dimensional image 15.
- FIG. 4 is a schematic configuration diagram of a modification example in which a convex lens is provided
- FIG. 5 is a schematic configuration diagram of a modification example in which a convex lens is provided between the display unit and the microlens array
- FIG. FIG. 6 is a schematic configuration diagram of a modified example in which a concave lens is provided between the layers.
- the concave lens is disposed as the light refracting means 17 between the microlens array 13 and the stereoscopic two-dimensional image 15 has been described.
- other lenses such as convex lenses, plano-concave lenses, plano-convex lenses may be used, or they may be provided at other positions! ,.
- the two-dimensional image displayed on the large-area image display surface l ib is displayed.
- An image can be formed as a reduced stereoscopic two-dimensional image 15b.
- the stereoscopic two-dimensional image 15b can be displayed with high definition.
- the distance between the microlens array 13 and the stereoscopic image display surface 25b can be shortened, and the apparatus can be thinned.
- the viewing angle of the image peripheral part is improved and the image peripheral part is clearly compared with the case where the light refracting means 17 is not used. Become visible.
- the secondary image displayed on the image display surface 11a is provided. It is possible to form the original image as a three-dimensional two-dimensional image 15 in which the protruding amount is increased or enlarged.
- a concave lens 29 is provided between the display unit 11 and the microlens array 13 so as to be close to the display unit 11, so as to be close to the display unit 11, the two-dimensional image displayed on the image display surface 11a is raised. It is possible to form an image as a three-dimensional two-dimensional image 15 that is increased or enlarged.
- the light refracting means 17 it is preferable to use a Fresnel lens formed by dividing a lens in a ring shape.
- a Fresnel lens By using a Fresnel lens, the thickness of the large-diameter beam refracting means 17 can be reduced and the weight can be reduced.
- the light refracting means 17 may be detachably provided on the stereoscopic two-dimensional image display device 100.
- a detachable structure By adopting such a detachable structure, it is possible to selectively attach the light refracting means 17 having a different curvature, different from the concave lens 29 and the convex lens 31, and to adjust to a desired protruding amount and magnification. Further, it is desirable that the additional lenses (concave lens 29, convex lens 31) as the light refracting means 17 be close to the microlens array 13 or the display surface 11. That's right.
- FIG. 7 is a schematic configuration diagram of a stereoscopic two-dimensional image display device according to the second embodiment provided with a variable focus lens
- FIG. 8 is a front view of the variable focus lens (a), and a cross section thereof is (b).
- Fig. 9 is an explanatory diagram showing the refractive index distribution in the diametrical direction. It is explanatory drawing of this modification.
- the light refracting means includes a variable focus lens 41.
- the variable focus lens 41 can be disposed between at least one of the display unit 11 and the microlens array 13 or between the microlens array 13 and the stereoscopic two-dimensional image 15. In the present embodiment, the variable focus lens 41 is provided between the microlens array 13 and the stereoscopic two-dimensional image 15.
- variable focus lens 41 a so-called liquid crystal lens 43 can be preferably used.
- the liquid crystal lens 43 is obtained by sealing the liquid crystal 49 with substrates 45 and 47 arranged in parallel. An alignment film is formed.
- the electrodes are formed, for example, concentrically from the center of the screen and so as to face each other.
- the three-dimensional two-dimensional image display device 200 provided with such a liquid crystal lens 43 as a light refracting means, by changing the focal length of the liquid crystal lens 43, two images displayed on the image display surface 11a are displayed.
- a three-dimensional image 15 with a three-dimensional image that has been raised or enlarged is imaged on the three-dimensional image display surface 25, or conversely, the raised amount is reduced.
- the reduced two-dimensional stereoscopic image 15b can be formed on the stereoscopic image display surface 25b. That is, the amount of protrusion and magnification can be changed in synchronization with the image displayed on the display unit 11.
- the color liquid crystal drive circuit power is controlled by synchronizing the voltage applied to the liquid crystal lens 43 based on the video signal input to the LCD and changing the amount of protrusion and magnification, for example, for a moving image. While increasing the amount, the zoomed-in image is displayed in a reduced size while reducing the raised amount, increasing the expressiveness of the difference in depth, and using a three-dimensional two-dimensional image with a relatively simple configuration. Realism can be further improved.
- the liquid crystal lens 43 is provided with a fixed lens 51 on the outer surface of the substrates 45 and 47 as shown in FIG. 9 (a), or on the inner surfaces of the substrates 45 and 47 as shown in FIG. 9 (b).
- the fixed lens 51 may be a convex lens or a concave lens.
- a Fresnel lens can be suitably used as the fixed lens 51.
- by providing the fixed lens 51 on the liquid crystal 49 side it is possible to change the thickness and orientation of the liquid crystal layer and generate a refractive index distribution without forming a pattern on the electrode.
- variable focus lens 41 a flexible material (for example, a transparent rubber plate) or the like can be used.
- a member corresponding to the substrates 45 and 47 may be formed, and a liquid serving as a medium may be sealed between them.
- the thickness of the concentric circle centered on the optical axis perpendicular to the transparent rubber plate is continuously changed by the sealed liquid, thereby entering the surface direction of the transparent rubber plate.
- the curvature can be continuously changed with respect to light.
- FIG. 10 is a schematic configuration diagram of a stereoscopic two-dimensional image display apparatus according to the third embodiment in which the lens pitch of the front lens array half is set smaller than that of the rear lens array half, and FIG. 11 is the front lens array half.
- the third lens pitch is set larger than the rear lens array half.
- 1 is a schematic configuration diagram of a stereoscopic two-dimensional image display device according to an embodiment.
- the lens pitch means the distance between the center points of adjacent micro convex lenses among the micro convex lenses constituting the micro lens array.
- the display unit 11 is arranged on the left side of the figure and the light beam propagates to the left force right is described as an example.
- the left side of the lens in the drawing is referred to as “lens front side”
- the right side of the lens is referred to as “lens rear side”.
- a stereoscopic two-dimensional image display device 300 includes a front lens array half 63 and a rear lens array half 65, which are two lens array halves with parallel microlens arrays 61.
- the direction in which one lens pitch and the other lens pitch change the distance between the microlens array 61 and the stereoscopic two-dimensional image 15 by refracting light rays, or the stereoscopic two-dimensional image. It is shifted in the direction to change the 15 magnification.
- a lens or a variable focus lens is provided as a light refracting means in the optical path between the display unit 11 and the stereoscopic two-dimensional image 15.
- the light beam is refracted, in the present embodiment, the light beam is refracted by shifting the pitch of each micro convex lens 23 between the pair of front lens array half 63 and the rear lens array half 65 of the micro lens array 61.
- Refract That is, in the present embodiment, the lens is decentered and the light beam is refracted by shifting the lens pitch without adding a new optical component such as a lens as the light beam refracting means.
- the lens pitch P 1 of the front lens array half 63 is set smaller than the lens pitch P 2 of the rear lens array half 65.
- the microlens array 61 can be given a function of refracting the light in the direction of diverging, and as a result, the two-dimensional image displayed on the image display surface 11a without adding a new lens can be obtained. It is possible to form a three-dimensional two-dimensional image 15 in which the amount of protrusion is increased or enlarged.
- the lens pitch P 3 of the front lens array half 67 is set larger than the lens pitch P 4 of the rear lens array half 69.
- the microlens array 71 can be imparted with a function of refracting light in the direction of focusing the light.
- the two-dimensional image displayed on the image display surface 11a without newly adding a lens can be imaged as a three-dimensional two-dimensional image 15b in which the protruding amount is reduced or reduced.
- the lens pitch between the front lens array half 63 and the rear lens array half 65 can be shifted, for example, by setting the outer diameters of the micro convex lenses 23 to different sizes. Further, the curvature of the micro convex lens 23 may not be constant.
- FIG. 12 is an explanatory diagram showing examples of combinations of lens pitches of the front and rear lenses (a) to (c).
- the front lens array half 63 and the rear lens array half 65 which are sequentially arranged from the two parallel lens array half force display units 11 are used. Are arranged so as to be close to each other.
- the front and rear surfaces of the front lens array half 63 and the front and rear surfaces of the rear lens array half 65 have a total of four lens array surface forces.
- the front and rear lens pitches of the front lens array half 63 are equal, the front and rear lens pitches of the rear lens array half 65 are equal, and the front lens array half is the same.
- the lens array halves are configured identically.
- the front and rear lens pitches of the front lens array half 63 are different, the front and rear lens pitches of the rear lens array half 65 are different, and the front lens array half is different.
- the lens pitch between the rear surface of the body 63 and the front surface of the rear lens array half 65 is the same.
- the lens pitches of the convex lenses arranged on the lens array surface are the same.
- the lens pitches of the front and rear surfaces of the front lens array half 63 and the front and rear surfaces of the rear lens array half 65 are different.
- the size relationship between the lens pitches on the front and rear surfaces is A ⁇ B ⁇ C ⁇ D from the front (left side) of the lens as shown in the figure. That is, the lens pitches of the convex lenses arranged on the lens array surfaces of the two lens array halves are all different.
- the microlens array 61 can be given a function of refracting light in the direction of diverging, and as a result, the amount of protrusion without adding a new lens can be increased or expanded.
- a stereoscopic two-dimensional image 15 can be formed.
- the lens pitches on the front and rear surfaces have a magnitude relationship.
- FIG. 12 (b) and (c) have a larger lens pitch than in FIG. 12 (a). It is easy to construct a more suitable lens.
- the microlens array front and rear lens array halves
- the curvature of each micro-convex lens on the front and rear surfaces may be set to a suitable curvature, which may not be constant.
- FIG. 13 is an explanatory view showing a configuration example of a microlens array and an eccentric optical system used in the stereoscopic two-dimensional image display apparatus according to the fourth embodiment.
- the microlens array 71 includes two parallel front lens array halves 63 and a rear lens array halves 65.
- the decentered optical system 73 is sandwiched between the front lens array half 63 and the rear lens array half 65.
- a prism array 75 can be suitably used.
- a prism 77 may be used in place of the prism array 75 as shown in FIG. 13 (b). It should be noted that the microphone aperture lens array 71 (front and rear lens array half) should be considered so that performance is obtained with the decentered optical system 73 sandwiched therebetween.
- FIG. 14 shows (a) the microlens array and eccentricity variable element of the stereoscopic two-dimensional image display device according to the fifth embodiment, (b) the refractive index distribution of the eccentricity variable element, and (b) FIG. 4C is an explanatory diagram showing the configuration of the core amount variable element in (c).
- the microlens array 81 includes two parallel front lens array half 63 and rear lens array half 65. And an eccentricity variable element 83 is sandwiched between the front lens array half 63 and the rear lens array half 65.
- the eccentricity variable element 83 an element having substantially the same configuration as that of the liquid crystal lens 43 can be used. That is, as shown in FIG. 14C, the liquid crystal 49 is sealed with the substrates 85 and 87 arranged in parallel, and the electrodes and the alignment film are formed on the surfaces of the substrates 85 and 87 facing each other.
- the electrodes rO, rl, r2 are formed in accordance with the arrangement of the lens array and so as to face each other.
- the direction of the major axis of the liquid crystal molecules that are aligned parallel to the substrates 85 and 87 can be continuously changed in the direction perpendicular to the substrates 85 and 87.
- the refractive index distribution can be changed so that the center force of the screen is also directed toward the periphery to become a saw-tooth shape.
- the protruding amount of the stereoscopic two-dimensional image 15 is obtained by changing the refractive index distribution of the eccentricity variable element 83. It is possible to increase, enlarge, and conversely reduce or reduce the embossing amount. This makes it possible to change the amount of protrusion and magnification in synchronization with the image to be displayed on the display unit 11, enhance the expressiveness of the difference in depth, and use the stereoscopic two-dimensional image 15 to The feeling can be further improved.
- FIG. 15 is an explanatory diagram of a modified example provided with an additional lens for improving the appearance of the surroundings.
- the configuration in which the stereoscopic two-dimensional image 15 is enlarged and displayed is as shown in FIG. 15 (b).
- a concave lens 91 may be further provided between the microlens array 13 and the light refracting means 17 and the stereoscopic two-dimensional image 15.
- FIG. 16 is an explanatory diagram of the operation of the borderless multi-screen according to the present invention.
- the stereoscopic two-dimensional image 15 can be displayed by the light spreading around, so that the display unit 11 and the microlens array 13 A plurality of three-dimensional two-dimensional images 15 that are not brought into contact with the light refracting means 17 or the like can be continued.
- the multi-screen 93 as shown in FIG. 93b can be made inconspicuous, and smoothly adjacent 3D images can proliferate.
- FIG. 17 is an explanatory diagram showing the magnitude relationship between the display unit 11, the microlens array 13, and the light refracting means 17.
- the stereoscopic two-dimensional image display device has a region where light cannot be taken in if the display unit 11, the microlens array 13 and the light refracting means 17 have the same area.
- the microlens array 13 and the light refracting means 17 are formed larger than the display unit 11 to increase the light capturing area (white circles in the figure). It is preferable to make it. Thereby, it is possible to prevent a decrease in brightness around the stereoscopic two-dimensional image 15.
- the display unit, the microlens array, and the like shown in the embodiments of the present invention are not necessarily installed in parallel to each other.
- the focus variable lens can be changed by moving the lens itself. Displayed in the same way as when using a liquid crystal lens. It is also possible to make the amount of projection and magnification of a stereoscopic two-dimensional image variable.
- FIG. 18 shows a modification example in which a fixed-focus lens (convex lens in the example of this figure) is provided between the display unit and the microlens array, and lens moving means for moving the fixed-focus lens is provided.
- a convex lens 31 is provided between the display unit 11 and the microlens array 13, and the position of the convex lens 31 is moved forward and backward (as indicated by arrows in the figure) by lens moving means (not shown).
- the raised amount and magnification of the displayed stereoscopic two-dimensional image 15 can be made variable.
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WO (1) | WO2006001158A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007206519A (ja) * | 2006-02-03 | 2007-08-16 | Pioneer Electronic Corp | 画像表示装置 |
CN102870032A (zh) * | 2010-06-16 | 2013-01-09 | 株式会社尼康 | 图像显示装置 |
WO2014058187A2 (ko) * | 2012-10-10 | 2014-04-17 | 한국과학기술원 | 가변 초점 렌즈, 이를 이용한 디스플레이 장치 및 디스플레이 방법 |
JP2017187707A (ja) * | 2016-04-08 | 2017-10-12 | 日本電信電話株式会社 | 3次元像表示装置及び3次元像表示方法 |
JP2018084828A (ja) * | 2010-06-16 | 2018-05-31 | 株式会社ニコン | 表示装置 |
CN109597210A (zh) * | 2017-09-20 | 2019-04-09 | 天马日本株式会社 | 显示装置 |
CN113625467A (zh) * | 2021-08-17 | 2021-11-09 | 东南大学 | 一种超宽视角三维光场显示装置 |
JP2022112017A (ja) * | 2021-01-20 | 2022-08-01 | 幻景▲ケイ▼動股▲フン▼有限公司 | 浮遊立体画像表示システム |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101779597B1 (ko) * | 2010-12-16 | 2017-09-19 | 엘지디스플레이 주식회사 | 입체영상표시장치와 이의 구동방법 |
CN105607269A (zh) * | 2015-12-24 | 2016-05-25 | 四川大学 | 一种大视角的集成成像3d显示屏 |
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JPH04106541A (ja) * | 1990-08-27 | 1992-04-08 | Victor Co Of Japan Ltd | 3次元表示装置 |
JP2004157270A (ja) * | 2002-11-06 | 2004-06-03 | Nippon Telegr & Teleph Corp <Ntt> | 三次元表示装置 |
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- 2005-05-31 JP JP2006528426A patent/JP4452719B2/ja not_active Expired - Fee Related
- 2005-05-31 WO PCT/JP2005/009936 patent/WO2006001158A1/ja active Application Filing
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JPS5821713A (ja) * | 1981-07-31 | 1983-02-08 | Canon Inc | 複眼光学系の変倍方法 |
JPH04106541A (ja) * | 1990-08-27 | 1992-04-08 | Victor Co Of Japan Ltd | 3次元表示装置 |
JP2004157270A (ja) * | 2002-11-06 | 2004-06-03 | Nippon Telegr & Teleph Corp <Ntt> | 三次元表示装置 |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007206519A (ja) * | 2006-02-03 | 2007-08-16 | Pioneer Electronic Corp | 画像表示装置 |
CN106604017A (zh) * | 2010-06-16 | 2017-04-26 | 株式会社尼康 | 图像显示装置 |
CN102870032A (zh) * | 2010-06-16 | 2013-01-09 | 株式会社尼康 | 图像显示装置 |
JP2018084828A (ja) * | 2010-06-16 | 2018-05-31 | 株式会社ニコン | 表示装置 |
WO2014058187A3 (ko) * | 2012-10-10 | 2015-04-30 | 한국과학기술원 | 가변 초점 렌즈, 이를 이용한 디스플레이 장치 및 디스플레이 방법 |
WO2014058187A2 (ko) * | 2012-10-10 | 2014-04-17 | 한국과학기술원 | 가변 초점 렌즈, 이를 이용한 디스플레이 장치 및 디스플레이 방법 |
JP2017187707A (ja) * | 2016-04-08 | 2017-10-12 | 日本電信電話株式会社 | 3次元像表示装置及び3次元像表示方法 |
CN109597210A (zh) * | 2017-09-20 | 2019-04-09 | 天马日本株式会社 | 显示装置 |
JP2019056738A (ja) * | 2017-09-20 | 2019-04-11 | Tianma Japan株式会社 | 表示装置 |
US11256128B2 (en) | 2017-09-20 | 2022-02-22 | Tianma Microelectronics Co., Ltd. | Display device |
JP7055286B2 (ja) | 2017-09-20 | 2022-04-18 | 天馬微電子有限公司 | 表示装置 |
JP2022112017A (ja) * | 2021-01-20 | 2022-08-01 | 幻景▲ケイ▼動股▲フン▼有限公司 | 浮遊立体画像表示システム |
US11778165B2 (en) | 2021-01-20 | 2023-10-03 | Lixel Inc. | Floating three-dimensional image display system |
CN113625467A (zh) * | 2021-08-17 | 2021-11-09 | 东南大学 | 一种超宽视角三维光场显示装置 |
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