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

Abstract

The utility model discloses a kind of integration imaging double vision 3D display device based on gradual change pitch pinhole array, it includes display screen, barrier array and gradual change pitch pinhole array；Display screen is used for showing micro-pattern matrix；Micro-pattern matrix is made up of the first image primitive and the second image primitive；First image primitive of micro-pattern matrix and second image primitive pin hole by gradual change pitch pinhole array, form the first vision area for viewing the oneth 3D scene and the second vision area for viewing the 2nd 3D scene respectively.This utility model can not only watch two different 3D scenes in two vision areas, and the integration imaging double vision 3D realizing wide viewing angle shows.

Description

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

Technical Field

The utility model relates to a look 3D shows technical field two, in particular to look 3D display device two based on integrated formation of image of gradual change pitch pinhole array.

Background

The principle of the double-view display is that two different pictures are displayed on one display screen at the same time, and viewers in different viewing directions can only see one picture, so that different requirements of a plurality of viewers are met on one display screen at the same time.

An integrated imaging 3D display is a true 3D display without any vision aid. The integrated imaging 3D display utilizes the reversible principle of an optical path, records the three-dimensional information of a 3D scene on image recording equipment through a micro-lens array to generate a micro-image array, then displays the micro-image array on a display screen, and reconstructs the three-dimensional image of the original 3D scene through the micro-lens array.

The integrated imaging double-vision 3D display is the fusion of the two display technologies. It can make the viewer see the 3D picture in different viewing directions without wearing a vision aid. However, the conventional integrated imaging dual-view 3D display has the disadvantages of narrow viewing angle, and the like, and thus its application range is limited. The viewing angle θ of the conventional integrated imaging dual-view 3D display is:

$\mathrm{\θ}=arctan\[\frac{mp}{2(m-1)g}\]$

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

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the problem of narrow viewing angle exists in the traditional integrated imaging double-vision 3D display technology is solved, and the application range of integrated imaging double-vision 3D display is further expanded.

In order to achieve the above object of the present invention, the present invention provides an integrated imaging dual-view 3D display device based on a gradual pitch pinhole array, which comprises a display screen, a barrier array and a gradual pitch pinhole array; the display screen is used for displaying the micro-image array; the micro-image array is composed of a first image element and a second image element; a first image element and a second image element of the micro image array respectively form a first visual area for watching a first 3D scene and a second visual area for watching a second 3D scene through the pinholes of the gradient pitch pinhole array; wherein,

The horizontal pitches of the pinholes in the same column in the gradually-changed pitch pinhole array are the same, the vertical pitches of the pinholes in the same row are the same, and the horizontal pitches of the pinholes in the same row are gradually increased from the center of the row to the edge of the row;

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

the junction of a first image element and a second image element in the micro image array corresponds to the pinholes in the central row of the gradient pitch pinhole array and the barriers in the central row of the barrier array one by one, wherein one end of each barrier in the central row of the barrier array is arranged at the junction of the first image element and the second image element, and the other end of each barrier in the central row of the barrier array is arranged in the pinhole corresponding to the junction of the first image element and the second image element, so that 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 elements and the rest of the second image elements in the micro image array are respectively in one-to-one correspondence with the rest of the pinholes in the gradient pitch pinhole array, one end of the rest of the barriers in the barrier array is arranged at the junction between the first image elements and the second image elements, the other end of the rest of the barriers in the barrier array is arranged on the gradient pitch pinhole array, and in the first image elements or the second image elements, the corresponding pinholes are positioned in the range of the barriers at the junction, wherein the pinholes are arranged close to the center of the micro image array.

According to a specific embodiment, in the first image element or the second image element, the corresponding pinhole is arranged against a barrier at the boundary and near the center of the micro-image array.

According to a specific embodiment, 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 embodiment, the horizontal pitch H of the ith row of pinholes in the graded-pitch pinhole array_iComprises the following steps:

$\left\{\begin{array}{cc}{H}_i=p{\left(\frac{l+g}{l-g}\right)}^{\&lsqb;ceil\left(\frac{m}{2}\right)-i\&rsqb;}& 1\&le;i\&le;\frac{m}{2}\\ H_i=p{\left(\frac{l+g}{l-g}\right)}^{\&lsqb;i-floor\left(\frac{m}{2}\right)-1\&rsqb;}& \frac{m}{2}<i\&le;m\end{array}\right.$

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

According to a particular embodiment, the viewing angles of the first and second viewing zones are both:

$\mathrm{\&theta;}=arctan\left(\frac{p}{g}\right)-arctan\left(\frac{\underset{i=2}{\overset{\frac{m}{2}}{\&Sigma;}}{H}_i}{l}\right)$

wherein p is the horizontal pitch of the image element positioned at the central position of the micro image array, and g is the distance between the gradient pitch pinhole array and the display screen.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses integrated formation of image double vision 3D display device based on gradual change pitch pinhole array not only can observe the 3D scene of two differences in two visuals, realizes the integrated formation of image double vision 3D display at wide visual angle moreover.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic diagram of the structure of a micro-image array according to the present invention;

fig. 3 is a first 3D scene view viewed by the first viewing zone of the present invention;

fig. 4 is a second 3D scene view observed by the second viewing zone of the present invention.

List of reference numerals

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

Detailed Description

The present invention will be described in further detail with reference to the following detailed description. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.

The schematic structural diagram of the present invention and the schematic structural diagram of the micro image array of the present invention shown in fig. 1 and fig. 2, respectively, are combined; the utility model discloses an integrated imaging double-vision 3D display device based on a gradual change pitch pinhole array, which comprises a display screen 1, a barrier array 3 and a gradual change pitch pinhole array 2; the display screen 1 is used for displaying the micro-image array 4; the micro-image array 4 is composed of a first image element 5 and a second image element 6; first and second image elements 5, 6 of the micro-image array 4 pass through the pinholes of the graduated pitch pinhole array 2 to form, respectively, a first viewing zone 7 for viewing a first 3D scene and a second viewing zone 8 for viewing a second 3D scene. The first 3D scene graph and the second 3D scene graph are respectively shown in fig. 3 and fig. 4.

The horizontal pitches and the vertical pitches of the pinholes in the same column in the gradual-change pitch pinhole array 2 are the same, the vertical pitches of the pinholes in the same row are the same, and the horizontal pitches of the pinholes in the same row are gradually increased from the center of the row to the edge of the row.

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

The junction of the first image element 5 and the second image element 6 in the micro image array 4 corresponds to the pinholes in the central row of the gradient pitch pinhole array 2 and the barriers in the central row of the barrier array 3 one by one, wherein one end of the barrier in the central row of the barrier array 3 is arranged at the junction of the first image element and the second image element, and the other end is arranged in the pinhole corresponding to the junction of the first image element 5 and the second image element 6, so that the pinhole is divided into two sub pinholes, and the first image element 5 and the second image element 6 respectively project images through the corresponding sub pinholes.

The remaining first picture elements 5 and second picture elements 6 in the micro-image array 4 are each one-to-one corresponding to the remaining pinholes in the gradient pitch pinhole array 2, the remaining barriers in the barrier array 3 have one end disposed at the boundary between the first picture elements 5 and between the second picture elements 6 and the other end disposed at the gradient pitch pinhole array 2, and in the first picture element 5 or the second picture element 6, the corresponding pinhole thereof is located within the range of the barrier at the boundary thereof, wherein the pinhole is disposed near the center of the micro-image array 4.

Specifically, in the first image element or the second image element, the corresponding pinhole is disposed closely to the barrier at the boundary and near the center of the micro-image array 4.

When in operation, the display screen of the utility model is one of a liquid crystal display screen, a plasma display screen and an organic electroluminescent display screen.

Specifically, the horizontal pitch H of the ith row of pinholes on the gradual-change pitch pinhole array 2_iComprises the following steps:

$\left\{\begin{array}{cc}{H}_i=p{\left(\frac{l+g}{l-g}\right)}^{\&lsqb;ceil\left(\frac{m}{2}\right)-i\&rsqb;}& 1\&le;i\&le;\frac{m}{2}\\ H_i=p{\left(\frac{l+g}{l-g}\right)}^{\&lsqb;i-floor\left(\frac{m}{2}\right)-1\&rsqb;}& \frac{m}{2}<i\&le;m\end{array}\right.$

the ceil () is rounded upwards, the floor () is rounded downwards, i is a positive integer less than or equal to m, p is the horizontal pitch of the pinholes at the center of the gradient-pitch pinhole array, the viewing distance is l, g is the distance between the gradient-pitch pinhole array and the display screen, and m is the number of the pinholes in the horizontal direction of the gradient-pitch pinhole array.

The pitch of pinholes at the center of the gradient pitch pinhole array is p equal to 5mm, the viewing distance is l equal to 105mm, the distance between the gradient pitch pinhole array and the display screen is g equal to 5mm, and the micro-image array and the gradient pitch pinhole array respectively comprise 10 × 10 units, namely 10 units in the horizontal direction and 10 units in the vertical direction. Obtaining the horizontal pitches of the pinholes in the 1 st to 10 th rows according to the calculation formula of the horizontal pitches, wherein the horizontal pitches are sequentially as follows: 7.3205mm, 6.655mm, 6.05mm, 5.5mm, 5mm, 5.5mm, 6.05mm, 6.655mm, 7.3205 mm.

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

$\mathrm{\&theta;}=arctan\left(\frac{p}{f}\right)-arctan\left(\frac{\frac{p}{2}+\frac{H_1}{2}+\underset{i=2}{\overset{\frac{m-1}{2}}{\&Sigma;}}{H}_i}{l}\right)$

Wherein, p is the horizontal pitch of the image element positioned at the central position of the micro image array, and the distance between the pinhole array with the gradual change pitch and the display screen is g-5 mm.

Taking the example that the pitch of the pinholes at the central position of the gradient pitch pinhole array is p equal to 5mm, and the distance between the gradient pitch pinhole array and the display screen is g equal to 5mm, the following formula is adopted

$\mathrm{\&theta;}=arctan\left(\frac{p}{g}\right)-arctan\left(\frac{\underset{i=2}{\overset{\frac{m}{2}}{\&Sigma;}}{H}_i}{l}\right)$

Calculate and obtain the utility model discloses a viewing angle theta is 32, and traditional integrated imaging double vision 3D display technology's viewing angle theta is 20. Therefore, the utility model discloses can observe two different 3D scenes in two visuals to realize the double-vision 3D of the integrated formation of image of wide visual angle and show.

While the present invention has been described in detail with reference to the embodiments, the present invention is not limited to the embodiments, and various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the claims of the present application.

Claims (5)

1. An integrated imaging double-view 3D display device based on a gradient pitch pinhole array is characterized by comprising a display screen, a barrier array and a gradient pitch pinhole array; the display screen is used for displaying the micro-image array; the micro-image array is composed of a first image element and a second image element; a first image element and a second image element of the micro image array respectively form a first visual area for watching a first 3D scene and a second visual area for watching a second 3D scene through the pinholes of the gradient pitch pinhole array; wherein,

the horizontal pitches of the pinholes in the same column in the gradually-changed pitch pinhole array are the same, the vertical pitches of the pinholes in the same row are the same, and the horizontal pitches of the pinholes in the same row are gradually increased from the center of the row to the edge of the row;

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

the junction of a first image element and a second image element in the micro image array corresponds to the pinholes in the central row of the gradient pitch pinhole array and the barriers in the central row of the barrier array one by one, wherein one end of each barrier in the central row of the barrier array is arranged at the junction of the first image element and the second image element, and the other end of each barrier in the central row of the barrier array is arranged in the pinhole corresponding to the junction of the first image element and the second image element, so that 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 elements and the rest of the second image elements in the micro image array are respectively in one-to-one correspondence with the rest of the pinholes in the gradient pitch pinhole array, one end of the rest of the barriers in the barrier array is arranged at the junction between the first image elements and the second image elements, the other end of the rest of the barriers in the barrier array is arranged on the gradient pitch pinhole array, and in the first image elements or the second image elements, the corresponding pinholes are positioned in the range of the barriers at the junction, wherein the pinholes are arranged close to the center of the micro image array.

2. The integrated imaging dual-view 3D display device based on a graded pitch pinhole array according to claim 1, wherein in the first image element or the second image element, its corresponding pinholes are arranged against barriers at its boundaries and near the center of the micro image array.

3. The integrated imaging dual-view 3D display device based on a graded pitch pinhole array according to claim 1, wherein the display screen is one of a liquid crystal display screen, a plasma display screen and an organic electroluminescent display screen.

4. The integrated imaging dual-view 3D display device based on a graded pitch pinhole array according to claim 1 or 2, wherein the horizontal pitch H of the ith row of pinholes on the graded pitch pinhole array _iComprises the following steps:

$\left\{\begin{array}{cc}{H}_i=p{\left(\frac{l+g}{l-g}\right)}^{\&lsqb;ceil\left(\frac{m}{2}\right)-i\&rsqb;}& 1\&le;i\&le;\frac{m}{2}\\ H_i=p{\left(\frac{l+g}{l-g}\right)}^{\&lsqb;i-floor\left(\frac{m}{2}\right)-1\&rsqb;}& \frac{m}{2}<i\&le;m\end{array}\right.$

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

5. The integrated imaging dual-view 3D display device based on a progressive pitch pinhole array according to claim 1, wherein the viewing angles of the first and second viewing zones are both:

$\mathrm{\&theta;}=\arctan \left(\frac{p}{g}\right)-\arctan \left(\frac{\underset{i=2}{\overset{\frac{m}{2}}{\&Sigma;}}{H}_i}{l}\right)$

wherein p is the horizontal pitch of the image element positioned at the central position of the micro image array, and g is the distance between the gradient pitch pinhole array and the display screen.