CN209086574U - A kind of integration imaging double vision 3D display device based on point light source - Google Patents

Abstract

The utility model provides an integrated imaging dual-view 3D display device based on a point light source, which comprises a point light source array, a display screen and a barrier wall array. The display screen is used to display the micro-image array. The micro-image array consists of sub-image elements I in sub-micro image array I and sub-image elements II in sub-micro image array II closely arranged. In the barrier rib array, one end of the barrier rib is fixed in the center of the picture element, and the other end of the barrier rib is fixed in the center of the point light source; each point light source illuminates the sub-picture element I and the sub-picture element II in the picture element corresponding to the point light source, The three-dimensional scene I and the three-dimensional scene II are thus reconstructed on the left and right.

Description

An integrated imaging dual-view 3D display device based on point light source

technical field

The utility model relates to an integrated imaging 3D display, and more particularly, the utility model relates to an integrated imaging dual-view 3D display device based on a point light source.

Background technique

Dual-view display is a new type of display that has appeared in recent years. Its principle is to display two different pictures on one display screen at the same time, and viewers in different viewing directions can only see one of the pictures, so as to realize the One display can meet the different needs of multiple viewers at the same time. In the existing dual-view display, the two images are separated by a parallax barrier or a light splitting element such as a cylindrical lens, or the viewer is required to wear different filters to achieve the effect of displaying only one image in a certain viewing direction. However, the existing dual-view display has an obvious disadvantage: the display picture is a 2D picture, and a three-dimensional display cannot be realized.

SUMMARY OF THE INVENTION

The utility model proposes an integrated imaging dual-view 3D display device based on a point light source, as shown in FIG. 1 , including a point light source array, a display screen and a barrier rib array. The display screen is used to display the micro-image array. The display screen is placed parallel to the front of the point light source array. The center of the point light source array is aligned with the center of the display screen. Barrier arrays consist of a series of opaque barriers. The barrier array is located between the point light source array and the display screen. A point light source array consists of a plurality of point light sources with the same parameters arranged at intervals. As shown in FIG. 2 , the micro-image array is composed of sub-image elements I in sub-micro image array I and sub-image elements II in sub-micro image array II closely arranged. The size of sub-picture elements I in sub-micro-image array I is equal to the size of sub-picture elements II in sub-micro-image array II; the number of sub-picture elements I in sub-micro-image array I is equal to the The number of picture elements II. A picture element consists of a sub-picture element I and a sub-picture element II; the pitch of the picture elements is equal to the pitch of the point light source. The number of picture elements in the micro-image array is equal to the number of point light sources in the point light source array. In the barrier rib array, one end of the barrier rib is fixed in the center of the picture element, and the other end of the barrier rib is fixed in the center of the point light source; each point light source illuminates the sub-picture element I and the sub-picture element II in the picture element corresponding to the point light source, Thereby the three-dimensional scene I and the three-dimensional scene II are reconstructed on the left and right.

Preferably, the diameter of the point light source is w , the pitch between the point light source and the image element is p , and the distance between the micro-image array and the point light source array is g . As shown in Figures 3, 4 and 5, at the viewing distance l , the horizontal viewing angle θ ₁ and the vertical viewing angle θ ₂ of each 3D viewing zone are respectively:

(1)

(2)

Among them, m and n are the number of units in the horizontal and vertical directions of the micro-image array and the point light source array, respectively.

Description of drawings

1 is a schematic diagram of the integrated imaging dual-view 3D display of the present invention

Accompanying drawing 2 is the schematic diagram of the micro-image array of the present invention

3 is a schematic diagram of the horizontal viewing angle of the 3D viewing area I and 3D viewing area II of the present invention

Accompanying drawing 4 is the schematic diagram of the vertical viewing angle of view of 3D viewing area I of the present invention

5 is a schematic diagram of the vertical viewing angle of the 3D viewing area II of the present invention

The symbols in the above drawings are:

1. Point light source array, 2. Display screen, 3. Barrier array, 4. Micro-image array, 5. Sub-micro-image array I, 6. Sub-micro-image array II, 7. 3D viewing area I, 8. 3D viewing area II.

It should be understood that the above drawings are schematic only and are not drawn to scale.

Detailed ways

A typical embodiment of a point light source-based integrated imaging dual-view 3D display device of the present invention is described in detail below, and the present invention is further described in detail. It is necessary to point out here that the following examples are only used to further illustrate the present utility model, and should not be construed as limiting the protection scope of the present utility model. Those skilled in the art make some improvements to the present utility model according to the above-mentioned contents of the present utility model. Non-essential improvements and adjustments still belong to the protection scope of the present invention.

The utility model proposes an integrated imaging dual-view 3D display device based on a point light source, as shown in FIG. 1 , including a point light source array, a display screen and a barrier rib array. The display screen is used to display the micro-image array. The display screen is placed parallel to the front of the point light source array. The center of the point light source array is aligned with the center of the display screen. Barrier arrays consist of a series of opaque barriers. The barrier array is located between the point light source array and the display screen. A point light source array consists of a plurality of point light sources with the same parameters arranged at intervals. As shown in FIG. 2 , the micro-image array is composed of sub-image elements I in sub-micro image array I and sub-image elements II in sub-micro image array II closely arranged. The size of sub-picture elements I in sub-micro-image array I is equal to the size of sub-picture elements II in sub-micro-image array II; the number of sub-picture elements I in sub-micro-image array I is equal to the The number of picture elements II. A picture element consists of a sub-picture element I and a sub-picture element II; the pitch of the picture elements is equal to the pitch of the point light source. The number of picture elements in the micro-image array is equal to the number of point light sources in the point light source array. In the barrier rib array, one end of the barrier rib is fixed in the center of the picture element, and the other end of the barrier rib is fixed in the center of the point light source; each point light source illuminates the sub-picture element I and the sub-picture element II in the picture element corresponding to the point light source, Thereby the three-dimensional scene I and the three-dimensional scene II are reconstructed on the left and right.

Preferably, the diameter of the point light source is w , the pitch between the point light source and the image element is p , and the distance between the micro-image array and the point light source array is g . As shown in Figures 3, 4 and 5, at the viewing distance l , the horizontal viewing angle θ ₁ and the vertical viewing angle θ ₂ of each 3D viewing zone are respectively:

(1)

(2)

Among them, m and n are the number of units in the horizontal and vertical directions of the micro-image array and the point light source array, respectively.

Both the micro -image array and the point light source array contain 11×11 units, of which there are 11 units in the horizontal direction and 11 units in the vertical direction. The pitch is p = 10mm, the viewing distance is l = 500mm, and the diameter of the point light source is w = 3mm, which are calculated by equations (1), (2) and (3). The viewing area has a horizontal viewing angle of 18° and a vertical viewing angle of 30°.

Claims (2)

1. The utility model provides an integrated imaging double-vision 3D display device based on a point light source, which is characterized by comprising a point light source array, a display screen and a barrier array; the display screen is used for displaying the micro-image array; the display screen is arranged in parallel right in front of the point light source array; the center of the point light source array is correspondingly aligned with the center of the display screen; the barrier array is composed of a series of opaque barriers; the barrier array is positioned between the point light source array and the display screen; the point light source array is formed by arranging a plurality of point light sources with the same parameters at intervals; the micro-image array is formed by closely arranging sub-image elements I in a sub-micro-image array I and sub-image elements II in a sub-micro-image array II; the size of the sub-picture element I in the sub-micro-picture array I is equal to the size of the sub-picture element II in the sub-micro-picture array II; the number of sub-picture elements I in the sub-micro-picture array I is equal to the number of sub-picture elements II in the sub-micro-picture array II; the image element consists of a subimage element I and a subimage element II; the pitch of the image elements is equal to the pitch of the point light sources; the number of image elements in the micro-image array is equal to the number of point light sources in the point light source array; in the barrier array, one end of the barrier is fixed at the center of the image element, and the other end of the barrier is fixed at the center of the point light source; each point light source illuminates a sub-image element I and a sub-image element II in the image element corresponding to the point light source, thereby reconstructing a three-dimensional scene I and a three-dimensional scene II on the left and the right.

2. The integrated imaging dual-view 3D display device based on point light source of claim 1, wherein the diameter of the point light source iswThe pitches of point light sources and picture elements are allpThe distance between the micro image array and the point light source array isg(ii) a At a viewing distancelHorizontal viewing angle of each 3D viewing zoneθ ₁And vertical viewing angleθ ₂Respectively as follows:

（1）

（2）

wherein,mandnthe number of units of the micro image array and the point light source array in the horizontal direction and the vertical direction respectively.