CN205809440U - Integration imaging double vision 3D display device based on gradual change pitch pinhole array - Google Patents

Abstract

The utility model discloses an integrated imaging dual-view 3D display device based on a gradually changing pitch pinhole array, which comprises a display screen, a barrier array and a gradually changing pitch pinhole array; the display screen is used to display the micro image array; the micro image array It is composed of a first image element and a second image element; the first image element and the second image element of the micro-image array pass through the pinholes of the gradual pitch pinhole array to respectively form the first viewing area for viewing the first 3D scene and a second viewport for viewing a second 3D scene. The utility model not only can watch two different 3D scenes in two viewing areas, but also realizes integrated imaging dual-view 3D display of wide viewing angle.

Description

Integrated imaging dual-view 3D display device based on gradient pitch pinhole array

technical field

The utility model relates to the technical field of dual-view 3D display, in particular to an integrated imaging dual-view 3D display device based on a gradually changing pitch pinhole array.

Background technique

Dual-view display is a new type of display that has emerged in recent years. Its principle is to display two different pictures on a display screen at the same time, and viewers in different viewing directions can only see one of the pictures, so as to achieve One display can meet the different needs of multiple viewers at the same time.

Integrated imaging 3D display is a true 3D display without any visual aids. Integrated imaging 3D display uses the principle of reversible optical path to record the stereoscopic information of the 3D scene to the image recording device through the microlens array to generate a microimage array, then display the microimage array on the display screen, and reconstruct it through the microlens array Stereoscopic images of the original 3D scene.

Integrated imaging dual-view 3D display is the fusion of the above two display technologies. It allows viewers to see 3D images in different viewing directions without wearing a vision aid. However, the traditional integrated imaging dual-view 3D display has disadvantages such as narrow viewing angle, so its application range is limited. The viewing angle θ of the traditional integrated imaging dual-view 3D display is:

$\mathrm{<span\; class="notranslate">\; \&theta;</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; r</span>}\mathrm{<span\; class="notranslate">\; c</span>}\mathrm{<span\; class="notranslate">\; t</span>}\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; \&lsqb;</span>\frac{\mathrm{<span\; class="notranslate">\; m</span>}\mathrm{<span\; class="notranslate">\; p</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; m</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>\mathrm{<span\; class="notranslate">\; g</span>}}<span\; class="notranslate">\; \&rsqb;</span>$

Wherein, p is the horizontal pitch of the picture elements, g is the distance between the display screen and the pinhole array with variable pitch, and m is the number of picture elements in the horizontal direction of the micro-image array.

Utility model content

The purpose of the utility model is to solve the problem of narrow viewing angle in the traditional integrated imaging dual-view 3D display technology, and further expand the application range of the integrated imaging dual-view 3D display.

In order to achieve the purpose of the above utility model, the utility model provides an integrated imaging dual-view 3D display device based on a gradual pitch pinhole array, which includes a display screen, a barrier array and a gradual pitch pinhole array; the display screen is used for Displaying a micro-image array; the micro-image array is composed of a first image element and a second image element; the first image element and the second image element of the micro-image array pass through the pinholes of the gradual pitch pinhole array, Respectively forming a first view zone for watching the first 3D scene and a second view zone for watching the second 3D scene; wherein,

The pinholes in the same column in the gradual pitch pinhole array have the same horizontal pitch and the same vertical pitch, and the pinholes in the same row have the same vertical pitch, and the horizontal pitch gradually increases from the center of the row to the edge of the row. increase;

The first image elements in the micro-image array are arranged continuously to form a first micro-image sub-array, the second image elements in the micro-image array are arranged in a continuous manner to form a second micro-image sub-array, the first micro-image sub-array and the second micro-image sub-array The number of rows of the second micro-image sub-array is the same as that of the micro-image array, and the number of columns is half of that of the micro-image array;

The junction of the first image element and the second image element in the micro-image array is in one-to-one correspondence with the pinholes on the central column of the gradual pitch pinhole array and the barrier ribs on the central column of the barrier array, wherein One end of the barrier on the central column of the barrier array is set at the junction of the first picture element and the second picture element, and the other end is set at the pinhole corresponding to the junction of the first picture element and the second picture element Inside, the pinhole is divided into two sub-pinholes, and the first image element and the second image element respectively project images through the corresponding sub-pinholes;

The rest of the first image element and the second image element in the micro-image array correspond to the rest of the pinholes in the gradual pitch pinhole array, one end of the remaining barriers in the barrier array is set on the At the junction between the first image elements and the second image elements, the other end thereof is arranged on the gradual pitch pinhole array, and on the first image element or the second image element , the corresponding pinholes are located within the range of the barriers at their junctions, wherein the pinholes are located close to the center of the micro-image array.

According to a specific implementation manner, in the first image element or the second image element, the corresponding pinholes are arranged close to the barrier at the junction thereof and close to the center of the micro-image array.

According to a specific implementation manner, the display screen is one of a liquid crystal display screen, a plasma display screen and an organic electroluminescent display screen.

According to a specific implementation manner, the horizontal pitch H _i of the i-th column of pinholes on the gradual pitch pinhole array is:

$\left\{\begin{array}{cc}{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; p</span>}{<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; g</span>}}{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; g</span>}}<span\; class="notranslate">\; )</span>}^{<span\; class="notranslate">\; \&lsqb;</span>\mathrm{<span\; class="notranslate">\; c</span>}\mathrm{<span\; class="notranslate">\; e</span>}\mathrm{<span\; class="notranslate">\; i</span>}\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; \&rsqb;</span>}& \mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; \&le;</span>\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}\\ {\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; p</span>}{<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; g</span>}}{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; g</span>}}<span\; class="notranslate">\; )</span>}^{<span\; class="notranslate">\; \&lsqb;</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; l</span>}\mathrm{<span\; class="notranslate">\; o</span>}\mathrm{<span\; class="notranslate">\; o</span>}\mathrm{<span\; class="notranslate">\; r</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; \&rsqb;</span>}& \frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; <</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; m</span>}\end{array}\right.$

Wherein, ceil () is rounded up, floor () is rounded down, i is a positive integer less than or equal to m, p is the horizontal pitch of the pinhole located at the center position of the pinhole array with gradual pitch, The viewing distance is l, g is the distance between the gradual pitch pinhole array and the display screen, and m is the number of pinholes in the horizontal direction of the gradual pitch pinhole array.

According to a specific implementation manner, the viewing angles of the first viewing zone and the second viewing zone are both:

$\mathrm{<span\; class="notranslate">\; \&theta;</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; r</span>}\mathrm{<span\; class="notranslate">\; c</span>}\mathrm{<span\; class="notranslate">\; t</span>}\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; p</span>}}{\mathrm{<span\; class="notranslate">\; g</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; r</span>}\mathrm{<span\; class="notranslate">\; c</span>}\mathrm{<span\; class="notranslate">\; t</span>}\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; (</span>\frac{\underset{\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 2</span>}}{\overset{\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}}{<span\; class="notranslate">\; \&Sigma;</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}}{\mathrm{<span\; class="notranslate">\; l</span>}}<span\; class="notranslate">\; )</span>$

Wherein, p is the horizontal pitch of the image elements located at the center of the micro-image array, and g is the distance between the gradual pitch pinhole array and the display screen.

Compared with the prior art, the utility model has the beneficial effects: the integrated imaging dual-view 3D display device based on the gradual pitch pinhole array of the utility model can not only watch two different 3D scenes in two viewing zones, but also Realize wide viewing angle integrated imaging dual-view 3D display.

Description of drawings:

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation of the micro image array of the present utility model;

Fig. 3 is the first 3D scene diagram viewed in the first viewing area of the utility model;

Fig. 4 is a second 3D scene diagram viewed in the second viewing zone of the present invention.

List of reference signs

1-display screen 2-gradient pitch pinhole array 3-barrier array 4-micro image array 5-first image element 6-second image element 7-first viewing area 8-second viewing area.

detailed description

The utility model will be further described in detail below in conjunction with specific embodiments. However, it should not be understood that the scope of the above-mentioned themes of the present utility model is limited to the following embodiments, and all technologies realized based on the content of the present utility model belong to the scope of the present utility model.

Combining the structural schematic diagram of the utility model shown in Fig. 1 and Fig. 2 respectively and the micro-image array of the utility model; wherein, the utility model is based on the integrated imaging dual-view 3D display device of the progressive pitch pinhole array including display Screen 1, barrier array 3 and pinhole array 2 with gradual pitch; display screen 1 is used to display micro image array 4; micro image array 4 is composed of first image element 5 and second image element 6; the first image element of micro image array 4 A picture element 5 and a second picture element 6 pass through the pinholes of the pinhole array 2 with a gradual pitch, respectively forming a first viewing area 7 for viewing the first 3D scene and a second viewing area for viewing the second 3D scene 8. Wherein, the first 3D scene graph and the second 3D scene graph are shown in FIG. 3 and FIG. 4 respectively.

Among them, the pinholes in the same column in the gradual pitch pinhole array 2 have the same horizontal pitch and the same vertical pitch, and the pinholes in the same row have the same vertical pitch, and the horizontal pitch is from the center of the row to the edge of the row Gradually increase.

The first image element 5 in the micro image array 4 is arranged continuously to form the first micro image sub-array, the second image element 6 in the micro image array 4 is arranged continuously to form the second micro image sub array, the first micro image sub array and the second micro image sub array The number of rows of the second micro-image sub-array is the same as that of the micro-image array, and the number of columns is half of that of the micro-image array.

The junction of the first image element 5 and the second image element 6 in the micro-image array 4 corresponds to the pinholes on the central column of the gradual pitch pinhole array 2 and the barriers on the central column of the barrier array 3, wherein the barrier array 3 one end of the barrier on the central column is arranged at the junction of the first picture element and the second picture element, and the other end is arranged in the pinhole corresponding to the junction of the first picture element 5 and the second picture element 6, The pinhole is divided into two sub-pinholes, and the first image unit 5 and the second image unit 6 respectively project images through the corresponding sub-pinholes.

The rest of the first image element 5 and the second image element 6 in the micro-image array 4 correspond to the rest of the pinholes in the gradual pitch pinhole array 2 respectively, and one end of the remaining barriers in the barrier array 3 is set on the first image On the junction between the elements 5 and the second image elements 6, the other end is set on the pinhole array 2 with a gradual pitch, and in the first image element 5 or the second image element 6, its corresponding needle The holes are located within the range of the barriers at their junctions, wherein the pinholes are located close to the center of the micro-image array 4 .

Specifically, in the first image element or the second image element, the corresponding pinholes are arranged close to the barrier at the junction and close to the center of the micro image array 4 .

During implementation, the display screen of the present utility model is one of a liquid crystal display screen, a plasma display screen and an organic electroluminescence display screen.

Specifically, the horizontal pitch H _i of the i-th column of pinholes on the gradual pitch pinhole array 2 is:

$\left\{\begin{array}{cc}{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; p</span>}{<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; g</span>}}{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; g</span>}}<span\; class="notranslate">\; )</span>}^{<span\; class="notranslate">\; \&lsqb;</span>\mathrm{<span\; class="notranslate">\; c</span>}\mathrm{<span\; class="notranslate">\; e</span>}\mathrm{<span\; class="notranslate">\; i</span>}\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; \&rsqb;</span>}& \mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; \&le;</span>\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}\\ {\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; p</span>}{<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; g</span>}}{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; g</span>}}<span\; class="notranslate">\; )</span>}^{<span\; class="notranslate">\; \&lsqb;</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; l</span>}\mathrm{<span\; class="notranslate">\; o</span>}\mathrm{<span\; class="notranslate">\; o</span>}\mathrm{<span\; class="notranslate">\; r</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; \&rsqb;</span>}& \frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; <</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; m</span>}\end{array}\right.$

Among them, ceil() is rounded up, floor() is rounded down, i is a positive integer less than or equal to m, p is the horizontal pitch of the pinhole located at the center of the pinhole array with gradual pitch, and the viewing distance is l, g is the distance between the pinhole array with gradual pitch and the display screen, and m is the number of pinholes in the horizontal direction of the pinhole array with gradual pitch.

The pitch of the pinholes at the center of the pinhole array with a gradual pitch is p=5mm, the viewing distance is l=105mm, the distance between the pinhole array with a gradual pitch and the display screen is g=5mm, and the distance between the micro image array and the gradual pitch Each pinhole array contains 10×10 units, that is, 10 units in the horizontal direction and 10 units in the vertical direction. According to the calculation formula of the above-mentioned horizontal pitch, the horizontal pitches of the pinholes in the 1st to 10th rows are: 7.3205mm, 6.655mm, 6.05mm, 5.5mm, 5mm, 5mm, 5.5mm, 6.05mm, 6.655mm, 7.3205 mm.

Specifically, the viewing angles of the first viewing area 7 and the second viewing area 8 are both:

$\mathrm{<span\; class="notranslate">\; \&theta;</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; r</span>}\mathrm{<span\; class="notranslate">\; c</span>}\mathrm{<span\; class="notranslate">\; t</span>}\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; p</span>}}{\mathrm{<span\; class="notranslate">\; f</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; r</span>}\mathrm{<span\; class="notranslate">\; c</span>}\mathrm{<span\; class="notranslate">\; t</span>}\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; (</span>\frac{\frac{\mathrm{<span\; class="notranslate">\; p</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>\underset{\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 2</span>}}{\overset{\frac{\mathrm{<span\; class="notranslate">\; m</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}}{<span\; class="notranslate">\; \&Sigma;</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}}{\mathrm{<span\; class="notranslate">\; l</span>}}<span\; class="notranslate">\; )</span>$

Wherein, p is the horizontal pitch of the picture elements located in the center of the micro-image array, and the distance between the pinhole array with gradual pitch and the display screen is g=5mm.

Still taking the pitch of the pinholes at the center of the gradual pitch pinhole array as p=5mm, and the distance between the gradual pitch pinhole array and the display screen as g=5mm as an example, according to the following formula

$\mathrm{<span\; class="notranslate">\; \&theta;</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; r</span>}\mathrm{<span\; class="notranslate">\; c</span>}\mathrm{<span\; class="notranslate">\; t</span>}\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; p</span>}}{\mathrm{<span\; class="notranslate">\; g</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; r</span>}\mathrm{<span\; class="notranslate">\; c</span>}\mathrm{<span\; class="notranslate">\; t</span>}\mathrm{<span\; class="notranslate">\; a</span>}\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; (</span>\frac{\underset{\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 2</span>}}{\overset{\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}}{<span\; class="notranslate">\; \&Sigma;</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}}{\mathrm{<span\; class="notranslate">\; l</span>}}<span\; class="notranslate">\; )</span>$

The viewing angle of the present invention is calculated to be θ=32°, while the viewing angle of traditional integrated imaging dual-view 3D display technology is θ=20°. Therefore, the utility model can watch two different 3D scenes in two viewing zones, and realize integrated imaging dual-view 3D display with a wide viewing angle.

The specific embodiment of the utility model has been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiment, without departing from the spirit and scope of the claims of the application, those skilled in the art can make Various modifications or adaptations.

Claims (5)

1. An integrated imaging dual-view 3D display device based on a gradual pitch pinhole array, characterized in that it includes a display screen, a barrier array and a gradual pitch pinhole array; the display screen is used to display a micro-image array; the The micro-image array is composed of a first image element and a second image element; the first image element and the second image element of the micro-image array pass through the pinholes of the gradual pitch pinhole array to respectively form A first viewing zone of a 3D scene and a second viewing zone for viewing a second 3D scene; wherein, The pinholes in the same column in the gradual pitch pinhole array have the same horizontal pitch and the same vertical pitch, and the pinholes in the same row have the same vertical pitch, and the horizontal pitch gradually increases from the center of the row to the edge of the row. increase; The first image elements in the micro-image array are arranged continuously to form a first micro-image sub-array, the second image elements in the micro-image array are arranged in a continuous manner to form a second micro-image sub-array, the first micro-image sub-array and the second micro-image sub-array The number of rows of the second micro-image sub-array is the same as that of the micro-image array, and the number of columns is half of that of the micro-image array; The junction of the first image element and the second image element in the micro-image array is in one-to-one correspondence with the pinholes on the central column of the gradual pitch pinhole array and the barrier ribs on the central column of the barrier array, wherein One end of the barrier on the central column of the barrier array is set at the junction of the first picture element and the second picture element, and the other end is set at the pinhole corresponding to the junction of the first picture element and the second picture element Inside, the pinhole is divided into two sub-pinholes, and the first image element and the second image element respectively project images through the corresponding sub-pinholes; The rest of the first image element and the second image element in the micro-image array correspond to the rest of the pinholes in the gradual pitch pinhole array, one end of the remaining barriers in the barrier array is set on the At the junction between the first image elements and the second image elements, the other end thereof is arranged on the gradual pitch pinhole array, and on the first image element or the second image element , the corresponding pinholes are located within the range of the barriers at their junctions, wherein the pinholes are located close to the center of the micro-image array. 2. The integrated imaging dual-view 3D display device based on the gradual pitch pinhole array as claimed in claim 1, wherein, in the first image element or the second image element, its corresponding pinhole It is arranged close to the barrier at the junction and close to the center of the micro-image array. 3. The integrated imaging dual-view 3D display device based on the gradual pitch pinhole array as claimed in claim 1, wherein the display screen is one of a liquid crystal display screen, a plasma display screen and an organic electroluminescent display screen one. 4. The integrated imaging dual-view 3D display device based on the gradual pitch pinhole array as claimed in claim 1 or 2, wherein the horizontal pitch H of the i-th row of pinholes on the gradual pitch pinhole array _i is: $\left\{\begin{array}{cc}{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; p</span>}{<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; g</span>}}{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; g</span>}}<span\; class="notranslate">\; )</span>}^{<span\; class="notranslate">\; \&lsqb;</span>\mathrm{<span\; class="notranslate">\; c</span>}\mathrm{<span\; class="notranslate">\; e</span>}\mathrm{<span\; class="notranslate">\; i</span>}\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; \&rsqb;</span>}& \mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; \&le;</span>\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}\\ {\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; p</span>}{<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; g</span>}}{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; g</span>}}<span\; class="notranslate">\; )</span>}^{<span\; class="notranslate">\; \&lsqb;</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; l</span>}\mathrm{<span\; class="notranslate">\; o</span>}\mathrm{<span\; class="notranslate">\; o</span>}\mathrm{<span\; class="notranslate">\; r</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; \&rsqb;</span>}& \frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; <</span>\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; m</span>}\end{array}\right.$ Wherein, ceil () is rounded up, floor () is rounded down, i is a positive integer less than or equal to m, p is the horizontal pitch of the pinhole located at the center position of the pinhole array with gradual pitch, The viewing distance is l, g is the distance between the gradual pitch pinhole array and the display screen, and m is the number of pinholes in the horizontal direction of the gradual pitch pinhole array. 5. The integrated imaging dual-view 3D display device based on the gradual pitch pinhole array as claimed in claim 1, wherein the viewing angles of the first viewing area and the second viewing area are both: $\mathrm{<span\; class="notranslate">\; \&theta;</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; arctan</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; p</span>}}{\mathrm{<span\; class="notranslate">\; g</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; arctan</span>}<span\; class="notranslate">\; (</span>\frac{\underset{\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 2</span>}}{\overset{\frac{\mathrm{<span\; class="notranslate">\; m</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}}{<span\; class="notranslate">\; \&Sigma;</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}}{\mathrm{<span\; class="notranslate">\; l</span>}}<span\; class="notranslate">\; )</span>$ Wherein, p is the horizontal pitch of the image elements located at the center of the micro-image array, and g is the distance between the gradual pitch pinhole array and the display screen.