CN111045223A - One-dimensional integrated imaging 3D display device based on barrier array - Google Patents
One-dimensional integrated imaging 3D display device based on barrier array Download PDFInfo
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- CN111045223A CN111045223A CN202010101465.1A CN202010101465A CN111045223A CN 111045223 A CN111045223 A CN 111045223A CN 202010101465 A CN202010101465 A CN 202010101465A CN 111045223 A CN111045223 A CN 111045223A
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Abstract
The invention discloses a one-dimensional integrated imaging 3D display device based on a barrier array, which comprises a display screen, the barrier array and a gradient aperture slit grating; the barrier array is positioned between the display screen and the gradient aperture slit grating and is vertical to the display screen and the gradient aperture slit grating; the aperture widths of a plurality of continuous slits positioned in the center of the gradually-changed aperture slit grating are the same; the barrier array comprises a plurality of barriers which are vertically arranged with the display screen and the gradual change aperture slit grating and are used for separating adjacent image elements and corresponding slits, and light rays emitted by each image element can only be imaged through the corresponding slits.
Description
Technical Field
The present invention relates to 3D display, and more particularly, to one-dimensional integrated imaging 3D display devices based on barrier rib arrays.
Background
The integrated imaging 3D display has the characteristic of being watched by naked eyes, the shooting and displaying processes are relatively simple, and 3D images with full parallax and full true colors can be displayed, so that the integrated imaging 3D display is one of the main modes of the current 3D display. The conventional one-dimensional integrated imaging 3D display device based on the barrier rib array has the advantages of no crosstalk, high resolution and high optical efficiency. However, the conventional one-dimensional integrated imaging 3D display device based on the barrier rib array has the following disadvantages:
(1) the aperture widths of two adjacent slits in the traditional gradually-changed aperture slit grating are changed in an equal difference relation, so that the brightness of two adjacent 3D pixels has an equal difference relation, and the watching effect of a 3D image is influenced.
(2) The aperture width of the slits is generally not more than 30% of the slit pitch, and too large aperture widths cannot exhibit a 3D effect. In the traditional one-dimensional integrated imaging 3D display device based on the barrier array, the aperture width of the slits in the gradient aperture slit grating is gradually increased from the middle to two sides in an equal difference relationship, so that the number of the slits in the gradient aperture slit grating is limited, and the gradient aperture slit grating cannot be widely applied.
Disclosure of Invention
The invention provides a one-dimensional integrated imaging 3D display device based on a barrier array, which is characterized by comprising a display screen, the barrier array and a gradient aperture slit grating as shown in figure 1; the display screen and the gradually-changed aperture slit grating are placed in parallel and are correspondingly aligned; the barrier array is positioned between the display screen and the gradient aperture slit grating and is vertical to the display screen and the gradient aperture slit grating; the aperture widths of a plurality of continuous slits positioned in the center of the gradually-changed aperture slit grating are the same; first in the gradual change aperture slit gratingiAperture width of column slitH i Calculated from the following formula
Wherein the content of the first and second substances,pis the pitch of the slits and is,nis the number of continuous slits with the same aperture width located in the center of the graded aperture slit grating,wis the aperture width of a plurality of continuous slits with the same aperture width positioned at the center of the gradual aperture slit grating,mis the number of slits in the graded aperture slit grating,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the gradually-changed aperture slit grating; the display screen is used for displaying the micro-image array, and the centers of the image elements in the micro-image array are correspondingly aligned with the centers of the corresponding slits; the barrier array comprises a plurality of barriers which are vertically arranged with the display screen and the gradual change aperture slit grating and are used for separating adjacent image elements and corresponding slits, and light rays emitted by each image element can only be imaged through the corresponding slits; viewing visual angle of one-dimensional integrated imaging 3D display device based on barrier arrayθAnd optical efficiencyφRespectively as follows:
drawings
FIG. 1 is a schematic diagram of the structure and parameters of the present invention
The reference numbers in the figures are:
1. display screen, 2 barrier array, 3 gradient aperture slit grating, 4 image element.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
An exemplary embodiment of the barrier rib array-based one-dimensional integrated imaging 3D display device of the present invention will be described in detail below, and the present invention will be further described in detail. It should be noted that the following examples are only for illustrative purposes and should not be construed as limiting the scope of the present invention, and that the skilled person in the art may make modifications and adaptations of the present invention without departing from the scope of the present invention.
The invention provides a one-dimensional integrated imaging 3D display device based on a barrier array, which is characterized by comprising a display screen, the barrier array and a gradient aperture slit grating as shown in figure 1; the display screen and the gradually-changed aperture slit grating are placed in parallel and are correspondingly aligned; the barrier array is positioned between the display screen and the gradient aperture slit grating and is vertical to the display screen and the gradient aperture slit grating; the aperture widths of a plurality of continuous slits positioned in the center of the gradually-changed aperture slit grating are the same; first in the gradual change aperture slit gratingiAperture width of column slitH i Calculated from the following formula
Wherein the content of the first and second substances,pis the pitch of the slits and is,nis the number of continuous slits with the same aperture width located in the center of the graded aperture slit grating,wis a continuous multi-aperture with the same aperture width positioned at the center of the gradual aperture slit gratingThe aperture width of each of the slits is,mis the number of slits in the graded aperture slit grating,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the gradually-changed aperture slit grating; the display screen is used for displaying the micro-image array, and the centers of the image elements in the micro-image array are correspondingly aligned with the centers of the corresponding slits; the barrier array comprises a plurality of barriers which are vertically arranged with the display screen and the gradual change aperture slit grating and are used for separating adjacent image elements and corresponding slits, and light rays emitted by each image element can only be imaged through the corresponding slits; viewing visual angle of one-dimensional integrated imaging 3D display device based on barrier arrayθAnd optical efficiencyφRespectively as follows:
the pitch of the slits beingp=10mm, the number of continuous slits having the same aperture width at the center of the tapered aperture slit grating isn=3, the aperture width of a plurality of continuous slits having the same aperture width at the center of the tapered aperture slit grating isw=1.5mm, the number of slits in a graded aperture slit grating ism=33, viewing distance ofl=1990mm, the distance between the display screen and the graded aperture slit grating isg=10 mm. The aperture widths of the 1 st to 33 th rows of slits are 3mm, 2.7mm, 2.4mm, 2.1mm, 1.8mm, 1.5mm, 1.8mm, 2.1mm, 2.4mm, 2.7mm, 3mm, respectively, as obtained by the formula (1); the viewing angle and optical efficiency of the one-dimensional integrated imaging 3D display device based on the barrier rib array obtained according to equations (2) and (3) were 60 ° and 23%, respectively.
Claims (1)
1. The one-dimensional integrated imaging 3D display device based on the barrier array is characterized by comprising a displayA display screen, a barrier array and a gradient aperture slit grating; the display screen and the gradually-changed aperture slit grating are placed in parallel and are correspondingly aligned; the barrier array is positioned between the display screen and the gradient aperture slit grating and is vertical to the display screen and the gradient aperture slit grating; the aperture widths of a plurality of continuous slits positioned in the center of the gradually-changed aperture slit grating are the same; first in the gradual change aperture slit gratingiAperture width of column slitH i Calculated from the following formula
Wherein the content of the first and second substances,pis the pitch of the slits and is,nis the number of continuous slits with the same aperture width located in the center of the graded aperture slit grating,wis the aperture width of a plurality of continuous slits with the same aperture width positioned at the center of the gradual aperture slit grating,mis the number of slits in the graded aperture slit grating,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the gradually-changed aperture slit grating; the display screen is used for displaying the micro-image array, and the centers of the image elements in the micro-image array are correspondingly aligned with the centers of the corresponding slits; the barrier array comprises a plurality of barriers which are vertically arranged with the display screen and the gradual change aperture slit grating and are used for separating adjacent image elements and corresponding slits, and light rays emitted by each image element can only be imaged through the corresponding slits; viewing visual angle of one-dimensional integrated imaging 3D display device based on barrier arrayθAnd optical efficiencyφRespectively as follows:
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112859371A (en) * | 2021-04-01 | 2021-05-28 | 成都工业学院 | Wide-view-angle 3D display method based on stepped gradient aperture slit grating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859371A (en) * | 2021-04-01 | 2021-05-28 | 成都工业学院 | Wide-view-angle 3D display method based on stepped gradient aperture slit grating |
| CN112859371B (en) * | 2021-04-01 | 2022-11-18 | 成都航空职业技术学院 | Wide-view-angle 3D display method based on stepped gradient aperture slit grating |
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