WO2018001150A1

WO2018001150A1 - Integrated imaging 3d display device based on gradually-changing pitch pinhole array, gradually-changing pitch pinhole, and display screen

Info

Publication number: WO2018001150A1
Application number: PCT/CN2017/089325
Authority: WO
Inventors: 吴非; 樊为
Original assignee: 成都工业学院
Priority date: 2016-06-30
Filing date: 2017-06-21
Publication date: 2018-01-04
Also published as: CN105892082A; CN105892082B

Abstract

An integrated imaging 3D display device based on a gradually-changing pitch pinhole array comprises a 2D display screen (1) used for displaying a micro image array (4), and comprises the gradually-changing pitch pinhole array (3). In the in the gradually-changing pitch pinhole array (3), pinholes in the same column have a same horizontal pitch; pinholes in the same row have a same vertical pitch, and the horizontal pitches are gradually increased from the center to row edges. The horizontal pitches and the vertical pitches of image primitives in the micro image array (4) are respectively the same as the horizontal pitches and vertical pitches of the corresponding pinholes. When the integrated imaging 3D display device based on a gradually-changing pitch pinhole array (3) is used for imaging, a horizontal view angle is unrelated to the number of the image primitives in the micro image array, so that the horizontal view angle of the integrated imaging 3D display device is increased.

Description

Integrated imaging 3D device based on progressive pitch pinhole array, progressive pitch pinhole array and display screen

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 2016105110007, entitled "Integrated Imaging 3D Display Device Based on Gradient Pitch Pinhole Array", filed on June 30, 2016, the entire contents of which is incorporated herein by reference. This is incorporated herein by reference.

Technical field

The invention relates to an integrated imaging 3D display, in particular to an integrated imaging 3D display device based on a progressive pitch pinhole array, a progressive pitch pinhole array and a display screen.

Background technique

Integrated imaging 3D display technology is a true 3D display technology that does not require any visual aids. The technology has the characteristics of naked eye viewing, the process of recording and display is relatively simple, and can display stereoscopic images of full parallax and full true color, and is one of the hotspot technologies in current 3D display technology. However, the current integrated imaging 3D display device still has shortcomings such as narrow viewing angle, thereby limiting its practical application.

As shown in FIG. 1, in a conventional integrated imaging 3D display, the viewing viewport is a common portion of the imaging area of all image elements. At the viewing distance 1, the horizontal viewing angle θ of the conventional integrated imaging 3D display is:

Where p is the horizontal pitch of the image element, g is the pitch of the pinhole array and the 2D display screen, m is the number of image elements in the horizontal direction of the micro image array, and w is the aperture width of the pinhole. In conventional integrated imaging 3D displays, the viewing angle of view is inversely proportional to the number of image elements in the micro image array.

Summary of the invention

The object of the present invention is to overcome the problem that the existing integrated imaging 3D display device has a narrow viewing angle in the prior art, and provides an integrated imaging 3D display device based on a gradual pitch pinhole array with a wider horizontal viewing angle.

In order to achieve the above object, the present invention provides the following technical solutions:

An integrated imaging 3D display device based on a progressive pitch pinhole array, comprising a 2D display screen and a progressive pitch pinhole array; the 2D display screen configured to display a micro image array; the progressive pitch pinhole array is placed in In front of the 2D display screen, image elements in the micro image array reconstruct a 3D scene through pinholes in the progressive pitch pinhole array;

In the progressive pitch pinhole array, the pinholes in the same column have the same horizontal pitch; 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;

The image elements in the micro image array are in one-to-one correspondence with the pinholes in the progressive pitch pinhole array, and the horizontal and vertical pitches of the image elements are respectively the same as the horizontal and vertical pitches of the corresponding pinholes.

Preferably, the horizontal pitch of each column of pinholes in the progressive pitch pinhole array is multiplied from a central column to two sides at a preset growth rate.

Preferably, the preset growth rate is:

Where l is the viewing distance and g is the spacing of the progressive pitch pinhole array from the 2D display.

Preferably, the horizontal pitch H _i of the i-th column pinhole on the progressive pitch pinhole array is:

Where ceil( ) is rounded up, floor( ) is rounded down, i is a positive integer less than or equal to m, and p is the horizontal pitch of the pinhole at the center of the progressive pitch pinhole array. l is the viewing distance, g is the distance between the progressive pitch pinhole array and the 2D display screen, and m is the number of pinholes in the horizontal direction in the progressive pitch pinhole array.

Preferably, the progressive pitch pinhole array has 11 rows and 11 columns.

Preferably, the horizontal viewing angle of view θ of the integrated imaging 3D display device based on the progressive pitch pinhole array is:

Where p is the horizontal pitch of the pinholes located at the center of the progressive pitch pinhole array, g is the pitch of the tapered pitch pinhole array and the 2D display screen, and w is the aperture width of the pinhole.

Preferably, the 2D display screen is one of a liquid crystal display, a plasma display, and an organic electroluminescence display.

An embodiment of the present invention further provides a progressive pitch pinhole array, the progressive pitch pinhole array being disposed in front of a 2D display screen configured to display a micro image array, wherein the image elements in the micro image array pass the Reconstructing a 3D scene with a pinhole in a progressive pitch pinhole array;

In the progressive pitch pinhole array, the pinholes in the same column have the same horizontal pitch; 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.

Preferably, the preset growth rate is:

Preferably, the progressive pitch pinhole array has 11 rows and 11 columns.

Where p is the horizontal pitch of the pinhole at the center of the progressive pitch pinhole array, g is the pitch of the pinhole array and the 2D display screen, and w is the aperture width of the pinhole.

An embodiment of the present invention further provides a display screen configured to display a micro image array, the micro image array comprising a plurality of image elements distributed in a display, the display screen being disposed in a gradient comprising a plurality of pinholes After the pitch pinhole array, the image elements of the micro image array reconstruct a 3D image scene through the pinholes in the progressive pitch pinhole array;

In the micro image array, the horizontal pitch of the image elements located in the same column is the same, the vertical pitch of the image elements located in the same row is the same, and the horizontal pitch of the image elements located in the same row gradually increases from the center of the row to the edge of the row. .

Preferably, in the micro image array, the horizontal pitch of each column of image elements is multiplied from a central column to two sides at a preset growth rate.

Preferably, the preset growth rate is:

Where l is the viewing distance and g is the spacing between the display screen and the progressive pitch pinhole array.

Advantageous Effects of the Invention Compared with the Prior Art: Providing an Integrated Imaging Based on a Gradient Pitch Pinhole Array a 3D display device, a progressive pitch pinhole array, and a display screen, wherein the pinholes in the same column have the same horizontal pitch; the pinholes in the same row have the same vertical pitch, and the horizontal The pitch gradually increases from the center of the line to the edge of the line; the horizontal and vertical pitch of the image elements in the micro image array are respectively the same as the horizontal and vertical pitch of the corresponding pinholes. When imaging with an integrated imaging 3D display device based on a progressive pitch pinhole array, the horizontal viewing angle of view is independent of the number of image elements in the micro image array, thereby achieving an increase in the horizontal viewing angle of the integrated imaging 3D display device.

DRAWINGS

1 is a schematic horizontal viewing angle view of an existing pinhole array integrated imaging 3D display device;

2 is an integrated imaging 3D display device based on a progressive pitch pinhole array of the present invention;

3 is a schematic view showing a horizontal viewing angle of an integrated imaging 3D display device based on a progressive pitch pinhole array according to the present invention;

Marked in the figure: 1. Display screen, 2. Traditional pinhole array, 3. Gradient pitch pinhole array, 4. Microimage array of the present invention.

detailed description

The present invention will be further described in detail below in conjunction with the test examples and specific embodiments. However, the scope of the above-mentioned subject matter of the present invention should not be construed as being limited to the following embodiments, and the technology implemented based on the present invention is within the scope of the present invention.

The present invention provides an integrated imaging 3D display device based on a progressive pitch pinhole array, as shown in FIG. 2, an integrated imaging 3D display device based on a progressive pitch pinhole array, including a 2D display screen and a gradient pitch a pinhole array; the 2D display screen is configured to display a micro image array; the progressive pitch pinhole array is placed in front of the 2D display screen, and image elements in the micro image array pass the tapered pitch pinhole A pinhole in the array reconstructs a 3D scene;

In the progressive pitch pinhole array, the pinholes in the same column have the same horizontal pitch; 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; In an embodiment, the horizontal pitch of the pinhole refers to the horizontal width of the pinhole, and the vertical pitch of the pinhole refers to the vertical height of the pinhole. Thus, the horizontal pitch of the pinholes at the center of the row is the minimum of the horizontal pitch of all pinholes in the row.

In this embodiment, optionally, the horizontal pitch of each column of pinholes in the progressive pitch pinhole array is multiplied from the center column to the two sides at a preset growth rate. Assuming that the preset growth rate is x and the horizontal pitch of the pinholes of the center column is p, the horizontal pitch of the n-th column pinholes on both sides of the center column is H _n = p(1+x) ⁿ .

Optionally, the preset growth rate may be:

Where l is the viewing distance and g is the spacing of the progressive pitch pinhole array from the 2D display. Thus, the horizontal pitch of the nth column pinholes on both sides of the center column is:

Optionally, the horizontal pitch H _i of the i-th column pinhole on the progressive pitch pinhole array is:

Where ceil( ) is rounded up, floor( ) is rounded down, i is a positive integer less than or equal to m, and p is the horizontal pitch of the pinhole at the center of the progressive pitch pinhole array, l is The viewing distance, g is the distance between the progressive pitch pinhole array and the 2D display screen, and m is the number of pinholes in the horizontal direction in the progressive pitch pinhole array. In the present embodiment, m may preferably be an odd number.

Optionally, at the optimal viewing position 1, the horizontal viewing angle of view θ of the integrated imaging 3D display device based on the progressive pitch pinhole array is:

Where p is the horizontal pitch of the pinhole located at the center of the progressive pitch pinhole array, g is the pitch of the progressive pitch pinhole array and the 2D display screen, and w is the aperture width of the pinhole.

In an actual application, as an implementation manner, the micro image array and the progressive pitch pinhole array may both include 11×11 units, wherein 11 units in the horizontal direction and 11 units in the vertical direction, the pitch of the pinholes located at the center of the progressive pitch pinhole array is p=5mm, the viewing distance is l=105mm, the needle The distance between the hole array and the 2D display screen is g=5mm, and the aperture width of the pinhole is w=1mm, then the horizontal pitch of the pinholes of the first to the eleventh columns are 8.05255mm, 7.3205mm, 6.655mm, 6.05mm, 5.5 respectively. Mm, 5mm, 5.5mm, 6.05mm, 6.655mm, 7.3205mm, 8.005255mm, according to the formula:

The horizontal viewing angle of the integrated imaging 3D display device based on the progressive pitch pinhole array of the present invention is 44°; and the horizontal viewing angle of the conventional integrated imaging 3D display with a pinhole pitch of 5 mm is 18°. Therefore, the integrated imaging 3D display device based on the progressive pitch pinhole array of the present invention realizes a wide viewing angle integrated imaging 3D display.

Optionally, the 2D display screen may be one of a liquid crystal display, a plasma display, and an organic electroluminescent display.

An embodiment of the present invention further provides a display screen configured to display a micro image array, the micro image array comprising a plurality of image elements distributed in a display, the display screen being disposed in a gradient comprising a plurality of pinholes After the pitch pinhole array.

In this embodiment, the layout manner of the micro image array is the same as that of the progressive pitch pinhole array described above, and details are not described herein again.

Industrial applicability

Embodiments of the present invention provide an integrated imaging 3D display device, a progressive pitch pinhole array, and a display screen based on a progressive pitch pinhole array, wherein the pinholes in the same column have horizontal levels in the tapered pitch pinhole array The pitches are the same; 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; the horizontal and vertical pitch of the image elements in the micro image array are respectively corresponding to the pinholes The horizontal and vertical pitch are the same. When imaging with an integrated imaging 3D display device based on a progressive pitch pinhole array, the horizontal viewing angle of view is independent of the number of image elements in the micro image array, thereby achieving an increase in the horizontal viewing angle of the integrated imaging 3D display device.

Claims

An integrated imaging 3D display device based on a progressive pitch pinhole array, comprising: a 2D display screen and a progressive pitch pinhole array; the 2D display screen configured to display a micro image array; the gradient pitch needle An array of holes is placed in front of the 2D display screen, and image elements in the micro image array reconstruct a 3D scene through pinholes in the array of progressive pitch pinholes;

In the progressive pitch pinhole array, the pinholes in the same column have the same horizontal pitch; 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;

The image elements in the micro image array are in one-to-one correspondence with the pinholes in the progressive pitch pinhole array, and the horizontal and vertical pitches of the image elements are respectively the same as the horizontal and vertical pitches of the corresponding pinholes.
The integrated imaging 3D display device based on a progressive pitch pinhole array according to claim 1, wherein a horizontal pitch of each column of pinholes in the progressive pitch pinhole array is from a center column at a preset growth rate Double growth to both sides.
The integrated imaging 3D display device based on a progressive pitch pinhole array according to claim 2, wherein the preset growth rate is:

Where l is the viewing distance and g is the spacing of the progressive pitch pinhole array from the 2D display.
The integrated imaging 3D display device based on the progressive pitch pinhole array according to any one of claims 1 to 3, wherein a horizontal pitch H i of the i- th column pinhole on the progressive pitch pinhole array for:

Where ceil() is rounded up, floor() is rounded down, i is a positive integer less than or equal to m, and p is the horizontal pitch of the pinhole at the center of the progressive pitch pinhole array. l is the viewing distance, g is the distance between the progressive pitch pinhole array and the 2D display screen, and m is the number of pinholes in the horizontal direction in the progressive pitch pinhole array.
The integrated imaging 3D display device based on the progressive pitch pinhole array according to any one of claims 1 to 4, wherein the number of rows of the progressive pitch pinhole array is 11 and the number of columns is 11.
The integrated imaging 3D display device based on the progressive pitch pinhole array according to any one of claims 1 to 5, wherein the horizontal viewing angle of the integrated imaging 3D display device based on the progressive pitch pinhole array θ is:

Where p is the horizontal pitch of the pinholes at the center of the progressive pitch pinhole array, g is the pitch of the progressive pitch pinhole array and the 2D display screen, and w is the aperture width of the pinhole.
The integrated imaging 3D display device based on the progressive pitch pinhole array according to any one of claims 1 to 6, wherein the 2D display screen is a liquid crystal display, a plasma display, and an organic electroluminescent display. One of them.
A progressive pitch pinhole array, wherein the progressive pitch pinhole array is disposed in front of a 2D display screen configured to display a micro image array through which image elements in the micro image array pass Rebuilding a 3D scene from a pinhole in the array of pinholes;

In the progressive pitch pinhole array, the pinholes in the same column have the same horizontal pitch; 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.
The progressive pitch pinhole array according to claim 8, wherein the horizontal pitch of each column of pinholes in the progressive pitch pinhole array is multiplied from a central column to two sides at a preset growth rate.
The progressive pitch pinhole array of claim 9 wherein said predetermined growth rate is:

Where l is the viewing distance and g is the spacing of the progressive pitch pinhole array from the 2D display.
The progressive pitch pinhole array according to any one of claims 8 to 10, wherein the horizontal pitch H i of the i-th column pinholes on the progressive pitch pinhole array is:

Where ceil() is rounded up, floor() is rounded down, i is a positive integer less than or equal to m, p is at the horizontal pitch of the pinhole at the center of the progressive pitch pinhole array, l is for viewing Distance, g is the distance between the pinhole array and the 2D display screen, and m is the number of pinholes in the horizontal direction in the progressive pitch pinhole array.
The progressive pitch pinhole array according to any one of claims 8 to 11, wherein the number of rows of the progressive pitch pinhole array is 11 and the number of columns is 11.
The progressive pitch pinhole array according to any one of claims 8 to 12, wherein the horizontal viewing angle of view θ of the integrated imaging 3D display device based on the progressive pitch pinhole array is:

Where p is the horizontal pitch of the pinhole at the center of the progressive pitch pinhole array, g is the pitch of the pinhole array and the 2D display screen, and w is the aperture width of the pinhole.
A display screen, wherein the display screen is configured to display a micro image array, the micro image array comprising a plurality of image elements distributed in a display, the display screen being disposed at a gradation pitch including a plurality of pinholes After the pinhole array, the image elements of the micro image array reconstruct a 3D image scene through the pinholes in the progressive pitch pinhole array;

In the micro image array, the horizontal pitch of the image elements located in the same column is the same, the vertical pitch of the image elements located in the same row is the same, and the horizontal pitch of the image elements located in the same row gradually increases from the center of the row to the edge of the row. .
The display screen according to claim 14, wherein in the micro image array, the horizontal pitch of each column of image elements is multiplied from the center column to the two sides at a preset growth rate.
The display screen according to claim 15, wherein said predetermined growth rate is:

Where l is the viewing distance and g is the spacing between the display screen and the progressive pitch pinhole array.