TW201337333A - Conversion device for converting 2D images into 3D images - Google Patents

Abstract

The present invention provides a conversion device for converting 2D images into 3D images, which is suitable to be configured in front of a display device capable of displaying 2D images, and comprises a prism sheet and a beam splitter sheet. The prism sheet comprises a plurality of first micro-structures, and is used for making the 2D image on the display device generating left-and-right shifting effect to form a 2D image with dislocated images. The beam splitter sheet is used for beam splitting, such that the left-shifting image and the right-shifting image of the 2D image with dislocated images may be respectively irradiated onto the left and right eyes of the viewer to generate the 3D viewing feeling caused by the parallax of both eyes. The present invention may be mounted on the conventional 2D TV, computer monitor, or in front of an ordinary picture or photo, such that the original 2D image may be converted into 3D image for presentation. Besides, the present invention is very convenient to use.

Description

Conversion device for converting a 2D image into a 3D image

The present invention relates to an image conversion apparatus, and more particularly to a conversion apparatus for converting a 2D image into a 3D image.

3D stereoscopic display technology is widely used in many occasions and products, such as 3D movies, 3D displays, 3D pictures and so on. For example, in the case of a non-naked-eye 3D display, the user must wear 3D glasses to make the left and right eyes see different images to generate stereoscopic effects by the parallax of the two eyes, but since it is uncomfortable to wear 3D glasses for a long time, the current industry is 亟The development of the naked-eye 3D display allows users to directly view the stereoscopic image without wearing 3D glasses.

However, whether it is a non-naked eye or a naked-eye 3D display, it is necessary to incorporate 3D display technology into the process of manufacturing the display, such as controlling the left and right eye dual light sources in the display, or performing image processing, etc., so 3D The display is difficult to manufacture. On the other hand, the aforementioned non-naked-eye 3D display is viewed when the 3D glasses are not worn, and the blurred visual perception of the image overlap is presented, so the display can only be used for 3D display without the function of 2D display; similarly, the naked eye The 3D display can only display 3D images, and if it is to be made into a form with both 2D and 3D for switching, it will increase manufacturing difficulty and production cost.

Moreover, most of the TVs and computer screens in the homes are traditional 2D displays. If you want to replace them with 3D displays, you must re-purchase them. This will incur an extra cost and eliminate or discard the unbroken 2D products in your home. It is against the principle of environmental protection.

Accordingly, it is an object of the present invention to provide a conversion device that is structurally innovative, convenient to use, and capable of converting a 2D image of a display device into a 3D image.

Thus, the present invention is a conversion apparatus for converting a 2D image into a 3D image, which is suitable for being disposed on one side of a display device capable of displaying a 2D image, and includes: a slice, a beam splitter, and a a dielectric layer between the cymbal and the beam splitter.

The cymbal includes a first body having a light incident surface facing the display device and a light emitting surface opposite to the light incident surface, the cymbal sheet further comprising a plurality of first microstructures arranged in a left and right direction The first microstructure is protrudedly disposed on the light-emitting surface or protruded on the light-incident surface; the raft is used to generate a left-right translation effect of the 2D image of the display device to form a 2D image of the image difference row For example, the 2D image of the image difference row includes a left displacement image and a right displacement image.

The beam splitter is located on one side of the light exit surface of the die and has a first face facing the die. The distance between the beam splitter and the die is d, and 0<d≦5cm; The left displacement image and the right displacement image of the 2D image of the image difference are respectively incident on the left and right eyes of the viewer to generate a 3D visual sense.

The ruthenium and the dielectric layer have refractive indices n1 and n2, respectively, and a first base angle of each of the first microstructures is α, and 0<α≦sin ^-1 (n2/n1).

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention. Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 1, 2, and 3, a first preferred embodiment of a conversion apparatus for converting a 2D image into a 3D image of the present invention is suitable for being disposed on a front side of a display device 1 capable of displaying a 2D image, The display device 1 such as a television, a computer screen, or the like can be used to play a moving image or a still image, and the display device 1 can also be used only for displaying a still image or a picture, such as a photo frame. Therefore, the 2D image of the display device 1 of the present invention is generally referred to as a moving image, a still image, a picture, a photo, and the like. The conversion device of this embodiment comprises: a cymbal 2, a beam splitter 3, and a dielectric layer 4.

The material of the cymbal sheet 2 is not particularly limited as long as it is a light permeable material, such as a light transmissive plastic. The crotch panel 2 includes a first body 21 and a plurality of first microstructures 22. The first body 21 has a light incident surface 211 facing the display device 1 and a light exit surface 212 opposite to the light incident surface 211. The first microstructures 22 are protrudedly disposed on the light-emitting surface 212, and are arranged side by side and extend vertically in a triangular columnar shape. A first base angle of each of the first microstructures 22 is α.

The beam splitter 3 is located on one side of the light exit surface 212 of the cymbal 2 and includes a second body 31 and a plurality of second microstructures 32. The second body 31 has a first face 311 facing the crotch panel 2 and a second face 312 opposite the first face 311. The second microstructures 32 are protrudedly disposed on the second surface 312, and are arranged side by side and extend vertically in a triangular columnar structure. The length direction of the second microstructures 32 is the same as the length direction of the first microstructures 22. A second base angle of each of the second microstructures 32 is β, and preferably 0 < β ≦ 70°, because if the β angle is too large and exceeds 70°, the light from the cymbal 2 is to be worn out. In the second microstructure 32, total reflection at the interface between the second microstructure 32 and the air is facilitated, so that light cannot pass through the beam splitter 3 and enter the viewer's eyes.

It should be noted that, since the first microstructure 22 and the second microstructure 32 of the embodiment have an isosceles triangle, each of the first microstructures 22 and the second microstructures 32 actually have two left and right corresponding portions. The bottom corner.

The dielectric layer 4 is located between the cymbal 2 and the beam splitter 3, thereby spacing the cymbal 2 and the beam splitter 3 apart. In the present embodiment, one medium of the dielectric layer 4 is air, but other materials may be used as the material of the dielectric layer 4 when implemented.

The refractive indices of the cymbal 2 and the dielectric layer 4 are n1 and n2, respectively, and the angle α of the first base angle is subject to the following limitation: 0<α≦sin ^-1 (n2/n1), which is for The bottom corner design allows a positive ray 5 (Fig. 3) incident from the display device 1 to effectively propagate forward. Because when the light 5 enters a surface 222 of the first microstructure 22 after entering the cymbal 2, the incident angle θ is also equal to α, and the surface 222 is totally reflected. The critical angle is sin ^-1 (n2/n1), so the present invention must define α≦sin ^-1 (n2/n1), which is equivalent to defining the incident angle θ ≦ sin ^-1 (n2/n1) to avoid light. 5 is totally reflected. Therefore, the design of the first microstructure 22 enables most of the light to pass through and continues to propagate toward the beam splitter 3, thereby improving light extraction efficiency and improving display brightness.

In the assembly of the present invention, an acrylic plate (not shown) may be separately disposed on the rear side of the cymbal 2 and the front side of the beam splitter 3, and the cymbal 2 and the beam splitter 3 are respectively fixed to the acryl. On the board, the two acrylic plates are locked by screws (not shown), so that the spacing between the two acrylic plates can be adjusted by screws, thereby adjusting the distance between the beam splitter 3 and the die 2, and borrowing This defines the thickness of the dielectric layer 4. In fact, it is also possible to add a frame to the outside of the device as appropriate, or a pylon may be provided on the back of the device to mount the conversion device on the front side of the display device 1. Of course, other types of mounting members can also be used to mount the conversion device on the display device 1.

When the light of the display device 1 is directed to the conversion device, the 2D image of the display device 1 is first refracted by the first microstructure 22 of the cymbal 2, thereby making the 2D of the display device 1 The image generates a left and right translation effect to form a 2D image of dislocation, and the 2D image of the image difference row includes a left displacement image and a right displacement image. After passing through the first microstructure 22 and the dielectric layer 4, the light enters the beam splitter 3, and when the light passes through the second microstructure 32, it is refracted and split by the second microstructure 32, so that the image is poorly arranged in the 2D image. The left displacement image and the right displacement image are respectively incident on the left and right eyes of the viewer, thereby causing parallax of both eyes to generate a 3D visual sense. It should be noted that, in the present invention, it is not necessary to limit the left and right displacement images to enter the left eye or the right eye, and stereoscopic vision can be generated as long as each of the two eyes sees one of the displacement images.

The distance between the beam splitter 3 and the die 2 is d. In this embodiment, d is the vertical of the first face 311 of the beam splitter 3 and the most convex point of the first microstructure 22 of the die 2 Distance, and preferably 0 < d ≦ 5 cm. The distance between the cymbal 2 and the beam splitter 3 is controlled by an appropriate distance so that light can pass through the dielectric layer 4 and enter the beam splitter 3 from an appropriate position, so that the beam splitter 3 can be appropriately The light is refracted to produce a stereoscopic view. If d is greater than 5 cm, the refraction effect of the beam splitter 3 is not required by the present invention, and both eyes will see the left displacement image and the right displacement image at the same time, so that the viewed image has a serious overlap and affects the stereoscopic effect. .

Referring to Figures 1 and 4, the stereoscopic image forming mechanism of the present invention is then assisted by a ray path. Each of the first microstructures 22 is configured to refract light from the display device 1 to cause the light to travel in two directions, thereby forming a first path ray 61 (shown in FIG. 4 by a solid line) and a second The path ray 62 (shown in phantom in FIG. 4) is an effect of causing the 2D image to be shifted left and right to form a difference image. After the first and second path rays 61 and 62 pass through the dielectric layer 4 and the beam splitter 3, they are respectively refracted into a third path ray 63 and a fourth path ray 64, and finally the third path ray 63 enters and is viewed. The right eye, the fourth path light 64 enters the viewer's left eye, which is the role of the beam splitter 3 for splitting light, so that the two eyes see different images to produce a stereoscopic effect. In Fig. 4, α = 45° and β = 70° are taken as an example.

Referring to FIG. 5, if α=45° and β=35° are taken as an example, the angle of refraction after the light passes through the second microstructure 32 is small, and finally the third path ray 63 enters the left eye, and the fourth path ray 64 enters. Right eye.

In summary, the innovative structural design of the present invention can be disposed in front of any form of the 2D display device 1, which causes the 2D image of the display device 1 to produce a poor discharge effect, and the splitter 3 uses It refracts light and has a splitting effect, so that both eyes can see different images to produce stereoscopic vision, and the effect of converting 2D images into 3D images is achieved. Therefore, the present invention can be installed on a conventional conventional 2D television, a computer screen, or on the front side of a normal picture or photo to convert the original 2D image into a 3D image for presentation. By adding the invention, there is no need to purchase another 3D display, eliminating the extra overhead, and eliminating the need to eliminate the available 2D products, so that it is environmentally friendly. Of course, if you do not want to view the 3D image, you can use the invention from the 2D product, which is quite convenient to use.

Referring to Figures 6 and 7, a second preferred embodiment of the present invention for converting a 2D image into a 3D image is substantially the same as the first preferred embodiment except that the present embodiment is The beam splitter 3 includes a second body 31. The second body 31 has a plurality of barrier regions 313 spaced apart from each other and opaque except for the first surface 311 and the second surface 312. A plurality of light transmissive regions 314 are located between the barrier regions 313. The light-transmitting region 314 of this embodiment is a hole design that runs through the front and rear and extends up and down.

By providing the light-shielding sheet 3 with the barrier region 313 and the light-transmitting region 314, the light from the cymbal 2 can be properly blocked and reflected, so that a part of the light is reflected into the viewer's left eye, and a part of the light is reflected and viewed. In the right eye, this is equivalent to the effect that the left and right displacement images of the 2D image of the image difference are respectively incident on the left and right eyes of the viewer, thereby causing parallax of the two eyes and generating a 3D visual sense.

It is to be noted that the proportions, dimensions, number of microstructures, light paths, and the like in the various figures of the present invention are merely for convenience of explanation of the present invention and should not be construed as limiting the present invention.

Referring to FIG. 8, a third preferred embodiment of the conversion apparatus for converting a 2D image into a 3D image of the present invention is substantially the same as the first preferred embodiment except that the cymbal of the embodiment is The first microstructure 22 of the second body 21 is located on the light incident surface 211 of the first body 21, and the distance d between the beam splitter 3 of the embodiment and the die 2 is the first surface 311 of the beam splitter 3 and the edge. The distance of the light exit surface 212 of the lens 2.

The conversion device of this embodiment further includes: a light adjustment unit 7 disposed between the cymbal 2 and the beam splitter 3 and disposed in the dielectric layer 4. The light adjustment unit 7 includes at least one light adjustment sheet 71 having a plurality of third microstructures 711 facing the beam splitter 3, each of the third microstructures 711 having a third base angle γ. In practice, the third microstructure 711 can also be designed to face the cymbal 2. For example, when the first base angle α=45° of the first microstructure 22 and the third base angle γ=44° of the third microstructure 32, the exit angle of the light a=1°; when α=45° When γ=43°, a=2°; when α=45° and γ=42°, a=3°.

The advantage of this embodiment is that the light adjustment unit 7 is added to assist the light adjustment, thereby using a plurality of diaphragms for light control. After the light adjustment unit 7 is added, the viewing distance can be determined first and then the light distribution sheet 3 is matched. The angle of the light is more convergent or divergent, so that the beam splitting effect of the beam splitter 3 is better, and the light angle control is better, and the thickness of the dielectric layer 4 can be not too thick, and the beam splitter 3 and the chip 2 can be reduced. For example, if the light adjustment unit 7 is not provided, the distance between the beam splitter 3 and the cymbal 2 is 2 cm, and after the light adjustment unit 7 is added, the distance can be adjusted to 1 cm to achieve the required distance. The optical effect thus makes the entire device thinner.

Referring to FIG. 9, a fourth preferred embodiment of the conversion apparatus for converting a 2D image into a 3D image of the present invention is substantially the same as the third preferred embodiment, and the difference lies in the light adjustment of the embodiment. The unit 7 includes two light-adjusting sheets 71 disposed one behind the other, wherein the third microstructure 711 of one of the light-adjusting sheets 71 is a triangular columnar structure, and the third microstructure 711 of the other light-adjusting sheet 71 is a columnar structure with a surface arc. .

It should be noted that the number of the light regulating sheets 71 of the present invention is not limited and may be one, two or more. The microstructure of the diaphragm, the beam splitter 3, and the light-adjusting sheet 71 is not limited, and may be a triangular columnar structure or a cylindrical arcuate structure or other shape. In addition, the microstructure of each diaphragm may protrude forward or may protrude rearward, so that it is not necessary to limit the protruding direction of the microstructure. The first microstructure 22 of the cymbal 2 of the present invention may be located on the light-incident surface 211 or the light-emitting surface 212. However, when the light-incident surface 211 is disposed on the light-incident surface 211, the light may enter the cymbal 2 as soon as it is The image difference is caused by the action of the first microstructure 22, and the poor displacement effect of the design is better, and the control effect of the light angle and the stereoscopic vision are better.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

1. . . Display device

2. . . Bract

twenty one. . . First ontology

211. . . Glossy surface

212. . . Glossy surface

twenty two. . . First microstructure

222. . . surface

3. . . Beam splitter

31. . . Second ontology

311. . . First side

312. . . Second side

313. . . Barrier zone

314. . . Light transmission area

32. . . Second microstructure

4. . . Dielectric layer

5. . . Light

61. . . First path light

62. . . Second path ray

63. . . Third path light

64. . . Fourth path ray

7. . . Light adjustment unit

71. . . Light adjustment sheet

711. . . Third microstructure

d. . . distance

α. . . First base angle

β. . . Second base angle

γ. . . Third base angle

θ. . . Incident angle

a. . . Exit angle

1 is an exploded perspective view showing a first preferred embodiment of the present invention for converting a 2D image into a 3D image, and showing the first preferred embodiment on the front side of a display device;

2 is a top plan view of the first preferred embodiment and the display device;

3 is a partial top plan view of the first preferred embodiment, showing a traveling path when a light passes through the first preferred embodiment;

4 is a top plan view of the first preferred embodiment, showing a light travel path;

Figure 5 is a top plan view similar to Figure 4, but the bottom angles of the plurality of second microstructures in Figure 5 are different from Figure 4;

Figure 6 is an exploded perspective view showing a second preferred embodiment of the present invention for converting a 2D image into a 3D image, while showing that the second preferred embodiment is located on the front side of a display device;

Figure 7 is a top cross-sectional view of the second preferred embodiment, showing the path of light travel;

Figure 8 is a top plan view showing a third preferred embodiment of the conversion apparatus for converting a 2D image into a 3D image of the present invention; and

Figure 9 is a top plan view showing a fourth preferred embodiment of the conversion apparatus for converting a 2D image into a 3D image of the present invention.

1. . . Display device

2. . . Bract

twenty one. . . First ontology

211. . . Glossy surface

212. . . Glossy surface

twenty two. . . First microstructure

3. . . Beam splitter

31. . . Second ontology

311. . . First side

312. . . Second side

32. . . Second structure

Claims (9)

A conversion device for converting a 2D image into a 3D image, which is suitable for being disposed on one side of a display device capable of displaying a 2D image, and comprising: a slice comprising a first body, the first body Having a light-incident surface facing the display device and a light-emitting surface opposite to the light-incident surface, the chip further includes a plurality of first microstructures arranged in a left-right direction, the first microstructures protrudingly disposed on the light-emitting surface Up or protruding on the light incident surface; the cymbal is used to generate a left and right translation effect of the 2D image of the display device to form a 2D image of the image difference row, the 2D image of the image difference row includes a left side a displacement image and a right displacement image; a beam splitter on one side of the light exit surface of the die and having a first face facing the die, the distance between the beam splitter and the die is d, and 0< d≦5 cm; the beam splitter is used for splitting the left and right shift images of the 2D image of the image difference to be incident on the left and right eyes of the viewer, respectively, to cause a parallax of the two eyes to generate a 3D visual sense; a dielectric layer Prism plate located between the beam splitter and the sheet; Prism sheet and the refractive index of the dielectric layer are a first base angle and n1 n2, each of the first microstructure of α, and 0 <α ≦ sin ^-1 (n2/n1). A conversion device for converting a 2D image into a 3D image according to claim 1, wherein the beam splitter comprises a second body having the first face, the second body further having an opposite In the second surface of the first surface, the beam splitter further includes a plurality of second microstructures protrudingly disposed on the second surface and arranged on the left and right sides, and a second bottom angle of each of the second microstructures is β, and 0 < β ≦ 70 °. The conversion device for converting a 2D image into a 3D image according to claim 2, wherein the first microstructure and the second microstructure are both long-length columnar structures. A conversion device for converting a 2D image into a 3D image according to claim 3, wherein the first microstructure and the second microstructure have the same length direction. The conversion device for converting a 2D image into a 3D image according to claim 1, wherein the beam splitter comprises a second body having the first face, and the second body further has a plurality of a barrier region that is spaced apart from each other and that is opaque, and a plurality of light-transmissive regions that are located between the barrier regions. A conversion device for converting a 2D image into a 3D image according to claim 1, wherein a medium of the dielectric layer is air. The conversion device for converting a 2D image into a 3D image according to claim 1, wherein the first microstructure is protruded on the light incident surface. The conversion device for converting a 2D image into a 3D image according to claim 1 or 6, further comprising a light adjustment unit disposed in the dielectric layer, the light adjustment unit including at least one light adjustment The sheet has a plurality of third microstructures. The conversion device for converting a 2D image into a 3D image according to claim 8 , wherein the light adjustment unit comprises two light adjustment sheets disposed one behind the other, wherein the third micro of the one light adjustment sheet The structure is a triangular columnar structure, and the third microstructure of the other light regulating sheet is a columnar structure with a surface arc.