CN107065489B - Double-imaging hybrid holographic display device - Google Patents

Abstract

A dual-imaging hybrid holographic display device belongs to the technical field of holographic display equipment. The device includes a top display screen, a bottom display screen and a holographic imaging frame. Four isosceles trapezoidal transparent films of the same shape and size are symmetrically combined into a quadrangular pyramid-shaped holographic imaging frame. At a 45-degree angle to the horizontal. The top display screen is square and is arranged above the holographic imaging frame, with the display surface facing down, and the four sides of the top display screen are connected with the four sides on the top of the holographic imaging frame. The bottom display screen is also square, placed at the bottom of the holographic imaging frame, with the display side facing up, and the center is aligned with the center of the bottom of the holographic imaging frame. The top display is divided into 4 areas by two diagonal lines. Through the simultaneous projection of two display screens, a double-layer holographic projection image is formed in the middle of the device through a transparent film, which improves the depth of the holographic imaging while ensuring the sense of volley, and allows interactive display between the front and rear layered display images.

Description

A dual-imaging hybrid holographic display device

technical field

The invention belongs to the field of holographic technical equipment, and relates to a holographic display device.

Background technique

Holographic imaging technology, also known as virtual imaging technology, is a technology that uses the principles of interference and diffraction to record and reproduce the real three-dimensional image of an object. The holographic imaging system suspends the three-dimensional image in the mid-air of the real scene, and the user can observe the virtual image from the outside of the holographic projection device. Because of its unique sense of volley, it has received extensive attention in the three-dimensional display of virtual objects.

In the existing holographic imaging technology, the holographic display device based on the reflection and transmission of the imaging film is mainly a holographic imaging frame composed of four transparent films, which is placed above or below the display screen and placed on the display screen. Play the video image and project it onto the holographic imaging frame through reflection to form a visual effect of holographic imaging. Users can observe the image from all sides of the holographic imaging frame to see the virtual objects in the sky. The device has low cost and simple fabrication, and the imaging is volleyed in the holographic imaging frame, and has an excellent three-dimensional display effect.

However, the existing holographic display devices based on imaging films can only display a single-layer holographic image. Although the sense of volley is strong, the sense of depth is still lacking.

SUMMARY OF THE INVENTION

In order to overcome the problems existing in the current holographic display device, the present invention provides a dual-imaging hybrid holographic display device, which adds a second holographic imaging on the basis of the existing holographic imaging device based on imaging films. The second layer of imaging is superimposed on the first layer of holographic imaging, showing the effect of dual-imaging overlay and mixed display, which improves the depth of the picture and is more practical and interactive.

The method of the present invention to solve its main technical problem is to add a display screen to the holographic display device based on the projection film, and together with the existing display screen, realize the simultaneous projection of one upper and lower dual screens, and achieve the mixing effect of dual images.

The device includes a top display screen, a bottom display screen and a holographic imaging frame. Four isosceles trapezoidal transparent films with the same shape and size are symmetrically combined into a quadrangular pyramid-shaped holographic imaging frame. The top display screen is square and is arranged above the holographic imaging frame, with the display surface facing down, and the four sides of the top display screen are connected with the four sides on the top of the holographic imaging frame. The bottom display screen is also square, placed at the bottom of the holographic imaging frame, with the display side facing up, and the center is aligned with the center of the bottom of the holographic imaging frame. The top display screen is divided into 4 areas by two diagonal lines, which are marked as A1, B1, C1, and D1 areas counterclockwise from the front side, and the bottom display screen is divided into 4 areas by two diagonal lines, reversed from the front side. The hour hand numbers are marked as A2, B2, C2, and D2 areas. In the vertical direction, the areas A1, B1, C1, and D1 correspond to the areas A2, B2, C2, and D2 in sequence. The outer side of any isosceles trapezoidal transparent film is the video played in the proximal area of the bottom display screen reflected by the proximal isosceles trapezoidal transparent film and the far side of the top display screen reflected by the distal isosceles trapezoidal transparent film. The overlay playback area of the video played in the end zone.

When the dual-imaging holographic display device is used, the top display screen plays a video, and the video image is reflected by the holographic imaging frame, and a holographic image is generated in the holographic imaging frame; at the same time, the bottom display screen also plays a video, and the video image is reflected by the holographic imaging frame. A holographic image is generated in the holographic imaging frame, which is superimposed and mixed with the original holographic image to form a new holographic image. At this time, the user can observe from the front, back, left and right angles of the holographic imaging frame: on the right side of the holographic imaging frame, the user sees the holographic image formed by the reflection of the image in the D1 area by the left side of the holographic imaging frame, and also sees the holographic image in the B2 area. The holographic image formed by the image reflected on the right side of the holographic imaging frame, the image received by the user is the superposition of two layers of holographic imaging; similarly, in front of the holographic imaging frame, the user can see the screen area A2 superimposed on the screen area C1 image Above, on the left side of the holographic imaging frame; the user can see that the picture of the screen area D2 is superimposed on the picture of the screen area B1; behind the holographic imaging frame, the user can see that the picture of the screen area C2 is superimposed on the picture of the screen area A1 above. From different viewing angles, users can see different holographic images, and the whole device can bring users a multi-layered, three-dimensional holographic display experience.

The advantage of the present invention is that: through the synchronous projection of two display screens, a double-layer holographic projection image is formed in the middle of the device through a transparent film, which improves the sense of depth of the holographic imaging while ensuring the sense of volley, and allows the front and rear layers to display the difference between the images. interactive display.

Description of drawings

Figure 1 is a schematic diagram of the present invention.

Detailed ways

As shown in FIG. 1 , reference numerals include: a top display screen 1 , a bottom display screen 2 , a holographic imaging frame 3 and a user 4 .

Four isosceles trapezoidal transparent films with the same shape and size are symmetrically combined into a quadrangular pyramid-shaped holographic imaging frame 3, the upper part is large and the lower part is small, and each transparent film forms an angle of 45 degrees with the horizontal plane. The top display screen 1 has a square shape and is arranged above the holographic imaging frame 3 with the display surface facing down. The four sides of the top display screen 1 are connected to the four sides of the top of the holographic imaging frame 3 . The bottom display screen 2 is also square and placed at the bottom of the holographic imaging frame 3 with the display surface facing upwards, and the center of the bottom display screen 2 is aligned with the center of the bottom of the holographic imaging frame 3 . The top display screen 1 is divided into 4 areas by two diagonal lines, which are marked as A1, B1, C1, and D1 areas counterclockwise from the front side, and the bottom display screen 2 is divided into 4 areas by two diagonal lines. The side counterclockwise numbers are marked as A2, B2, C2, D2 areas, respectively. In the vertical direction, the areas A1, B1, C1, and D1 correspond to the areas A2, B2, C2, and D2 in sequence. The outer side of any isosceles trapezoidal transparent film is the video played in the proximal area of the bottom display screen reflected by the proximal isosceles trapezoidal transparent film and the far side of the top display screen reflected by the distal isosceles trapezoidal transparent film. The overlay playback area of the video played in the end zone.

When the dual-imaging holographic display device is used, the top display screen 1 plays a video, the video image is reflected by the holographic imaging frame 3, and a holographic image is generated in the holographic imaging frame 3; at the same time, the bottom display screen 2 also plays a video, and the video image is subjected to holographic imaging. The image frame 3 is reflected, and a holographic image is also generated in the holographic imaging frame 3, which is superimposed and mixed with the original holographic image to form a new holographic image. At this time, the user 4 can observe from the front, rear, left and right angles of the holographic imaging frame 3: when the user is on the right side of the holographic imaging frame 3, the user sees the holographic image formed by the reflection of the image in the D1 area by the transparent film on the left side of the holographic imaging frame 3. At the same time, you can see the holographic image formed by the reflection of the image in the B2 area by the transparent film on the right side of the holographic imaging frame 3. The image received by the user 4 is the superposition of the two layers of holographic imaging; 4. It can be seen that the picture of the screen area A2 is superimposed on the picture of the screen area C1; when the holographic imaging frame 3 is on the left side, the user 4 can see that the picture of the screen area D2 is superimposed on the picture of the screen area B1; When the image frame 3 is behind, the user 4 can see that the picture of the screen area C2 is superimposed on the picture of the screen area A1.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present invention, and these should also be regarded as the present invention. the scope of protection, these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims (2)

1. a holographic display device for dual imaging mixing, characterized in that the device comprises a top display screen, a bottom display screen and a holographic imaging frame, and four isosceles trapezoidal transparent films of the same shape and size are symmetrically combined into a quadrangle The table-shaped holographic imaging frame is placed on the top and the bottom is small, and each transparent film is at a 45-degree angle to the horizontal plane; the top display screen is a square, set above the holographic imaging frame, the display surface is placed downward, and the four sides of the top display screen are It is connected with the four sides of the top of the holographic imaging frame; the bottom display screen is also square, placed at the bottom of the holographic imaging frame, the display surface is placed upward, and the center is aligned with the center of the bottom of the holographic imaging frame; the top display screen is surrounded by two diagonal lines It is divided into 4 areas, which are marked as A1, B1, C1, and D1 areas counterclockwise from the front side, and the bottom display screen is divided into 4 areas by two diagonal lines, which are marked as A2, B2, C2, D2 areas, A1, B1, C1, D1 areas in the vertical direction correspond to A2, B2, C2, D2 areas in turn; the outer side of any isosceles trapezoidal transparent film is reflected by the proximal isosceles trapezoidal transparent film The video played in the near-end region of the bottom display screen and the video played in the far-end region of the top display screen reflected by the isosceles trapezoidal transparent film at the far end are overlapped play areas. 2. The holographic display device according to claim 1, wherein when the user uses the device, the top display screen plays a video, and the video image is reflected by the holographic imaging frame, and a holographic image is generated in the holographic imaging frame; When playing the video, the video image is reflected by the holographic imaging frame, and a holographic image is also generated in the holographic imaging frame, which is superimposed and mixed with the original holographic image to form a new holographic image; Observation from four right angles: On the right side of the holographic imaging frame, the user sees the holographic imaging formed by the reflection of the image in the D1 area on the left side of the holographic imaging frame, and the holographic imaging formed by the reflection of the image in the B2 area on the right side of the holographic imaging frame. The resulting image is the superposition of two layers of holographic imaging; similarly, in front of the holographic imaging frame, the user sees the screen area A2 superimposed on the screen area C1, on the left side of the holographic imaging frame; the user sees the screen area D2 The picture of the screen area is superimposed on the picture of the screen area B1; behind the holographic imaging frame, the user sees that the picture of the screen area C2 is superimposed on the picture of the screen area A1; from different observation angles, the user sees different holographic images.

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