CN110632766B - LED naked eye display - Google Patents

Abstract

The invention discloses an LED naked eye display, which belongs to the field of 3D naked eye display, and the technical scheme is characterized by comprising the following steps: the 2D pixel points are arranged in a 3 x 3 mode to form 3D pixel points; the 2D pixel points are attached with gratings to form naked eye 3D display units, and the naked eye 3D display units are spliced to form a naked eye display screen; the gratings correspond to the 2D pixel points one by one, and the size of each grating is the same as that of the corresponding and matched 2D pixel point. Compared with the prior art, the method has the advantages that the horizontal length of the image of the single viewpoint is reduced by sequentially arranging the sub-pixels corresponding to the viewpoints in the horizontal direction, so that the ratio of the horizontal resolution to the screen physical resolution is increased, and the problem that the display effect of the LED naked-eye display is reduced because the longitudinal resolution of the single viewpoint is equal to the screen physical resolution and the horizontal resolution is far smaller than the screen physical resolution is solved.

Description

LED naked eye display

Technical Field

The invention relates to the technical field of 3D naked eye display, in particular to an LED naked eye display.

Background

In the existing LCD display, each pixel is composed of independent red, green and blue 3 sub-pixels, so the view sequence of the LCD-based naked eye 3D display takes the sub-pixel as the minimum unit, and if the pixel is square, the sub-pixel is 1: 3, taking a 9-view naked eye 3D display as an example (as shown in fig. 1), as long as the sub-pixels corresponding to 1-9 views are sequentially arranged in the horizontal direction, the horizontal resolution of a single view is 3/9-1/3 of the screen physical resolution, and the vertical resolution is 1/(9/3) -1/3 of the screen physical resolution, that is, the resolution reduction of a single-view image is divided equally in the horizontal and vertical directions.

Each pixel in the LED naked-eye display is composed of a large number of three-color LED light sources which are mixed and distributed together, so the viewpoint sequence of the LED-based naked-eye 3D display must use the pixel as the minimum unit, which means that if the sub-pixels corresponding to the viewpoints 1 to 9 are arranged in sequence in the horizontal direction according to the prior art, the single viewpoint longitudinal resolution is equal to the screen physical resolution, and the lateral resolution is only 1/9, so that the display effect of the LED naked-eye display is reduced.

To this end, an LED bare eye display is proposed.

Disclosure of Invention

The present invention is directed to an LED bare eye display to solve the above problems.

In order to achieve the above object, the present invention provides an LED bare eye display comprising: the 2D pixel points are arranged in a 3 x 3 mode to form 3D pixel points; the 2D pixel points are attached with gratings to form naked eye 3D display units, and the naked eye 3D display units are spliced to form a naked eye display screen; the gratings correspond to the 2D pixel points one by one, and the size of each grating is the same as that of the corresponding and matched 2D pixel point.

Further, the 2D pixel point comprises a red LED light source, a green LED light source and a blue LED light source, and the red LED light source, the green LED light source and the blue LED light source are arranged in a random combination mode.

Further, the 2D pixel points and the corresponding rasters may be ordered synchronously and arbitrarily.

Further, the ratio of the horizontal size to the vertical size of each 2D pixel point is 1: 1.

By applying the technical scheme of the invention, the beneficial effects are as follows: this kind of LED naked eye display, arrange through the 2D pixel with 3 x 3 mode and constitute the 3D pixel, and a plurality of gratings cover on corresponding 2D pixel, for the mode that the sub-pixel that the viewpoint corresponds among the prior art arranges in proper order in the horizontal direction, single viewpoint image horizontal length has been reduced, thereby the ratio of horizontal resolution and screen physical resolution has been increased, it equals with screen physical resolution to have solved single viewpoint longitudinal resolution, horizontal resolution is far less than screen physical resolution, cause the problem that LED naked eye display effect descends.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a diagram illustrating a structure of a conventional 9-viewpoint arrangement;

FIG. 2 shows a naked eye 3D display unit structure of the present invention;

FIG. 3 is a view showing a 9-viewpoint arrangement structure of the present invention;

FIG. 4 shows a 2D pixel structure diagram of the present invention;

figure 5 shows a grating structure diagram of the present invention.

Wherein the figures include the following reference numerals:

10. a naked eye display screen; 20. a naked eye 3D display unit; 21. 3D pixel points; 22. a grating; 30. 2D pixel points; 31. a red LED light source; 32. a green LED light source; 33. a blue LED light source.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 5, the present invention provides an LED bare eye display including: 2D pixel points 30, wherein a plurality of 2D pixel points 30 are arranged in a 3 x 3 mode to form a 3D pixel point 21; the 2D pixel points 30 are attached with the gratings 22 to form naked eye 3D display units 20, and the naked eye display screens 10 are formed by splicing a plurality of naked eye 3D display units 20; the gratings 22 correspond to the 2D pixel points 30 one by one, and the size of each single grating 22 is the same as that of the corresponding and matched single 2D pixel point 30.

Taking 9 viewpoints as an example, the viewpoint sequence of the LCD-based naked eye 3D display uses sub-pixels as the minimum unit, as shown in fig. 1, sub-pixels corresponding to 1-9 viewpoints are sequentially arranged in the horizontal direction, the horizontal resolution of a single viewpoint is 3/9 ═ 1/3 of the screen physical resolution, and the vertical resolution is 1/(9/3) ═ 1/3 of the screen physical resolution;

in this embodiment, the 2D pixel points 30 are used as the minimum unit in the viewpoint sequence of the LED-based naked-eye 3D display, and the 2D pixel points 30 corresponding to 1-9 viewpoints in the prior art are sequentially arranged in the horizontal direction, so that the single horizontal resolution is 1/9, and the single longitudinal resolution is 3/(9/3) ═ 1 of the screen physical resolution;

as shown in fig. 3, the 2D pixels 30 are arranged in a 3 × 3 manner to form a 3D pixel 21, and the plurality of rasters 22 attached to the lens portion of the 2D pixel 30 correspond to the plurality of 2D pixels 30 one by one, respectively, the horizontal resolution of a single viewpoint in the arrangement manner is 1/(9/3) ═ 1/3 of the screen physical resolution, and the vertical resolution is 1/(9/3) ═ 1/3 of the screen physical resolution;

based on the above description, the viewpoint sequence of the LED-based naked eye 3D display is arranged in a 3 × 3 manner through the 2D pixels 30 to form the 3D pixels 21, and the plurality of gratings 22 covering the lens portion of the 2D pixels 30 are respectively in one-to-one correspondence with the plurality of 2D pixels 30, so that compared with the manner that the 2D pixels 30 corresponding to the viewpoints in the prior art are sequentially arranged in the horizontal direction, the ratio of the horizontal resolution of a single viewpoint to the physical resolution of the screen is effectively increased, and the problem that the actual display effect of the LED naked eye display is reduced due to the fact that the vertical resolution of a single viewpoint, the large difference between the horizontal resolution and the physical resolution of the screen is solved.

As shown in fig. 3, the single gratings 22 cut into different shapes respectively correspond to the 2D pixel points 30 one by one to form different viewpoints, the size of the single grating 22 is the same as that of the single 2D pixel point 30 corresponding to the single grating 22 and the 2D pixel point 30 is aligned, so that the problem that the same 2D pixel point 30 is covered by the two cut gratings 22 of different shapes, which easily causes a 3D imaging error, can be avoided.

The embodiment is not limited to 9 viewpoints, and the LED naked-eye 3D displays of other number of viewpoints may be designed to be arranged in 4 × 4 at 16 viewpoints and in 3 × 5 at 15 viewpoints according to the present technical solution.

Specific to the structure of the 2D pixel 30, the 2D pixel 30 includes a red LED light source 31, a green LED light source 32, and a blue LED light source 33, the red LED light source 31, the green LED light source 32, and the blue LED light source 33 are arranged in any combination, and by applying the naked eye 3D display technology, the three red LED light sources 31, the green LED light source 32, and the blue LED light source 33 are arranged in different orders, so that different types of 2D pixels 30 are formed, and thus different types of naked eye 3D display units 20 can be formed.

As shown in fig. 5, the curved surfaces of the gratings 22 corresponding to the 2D pixels 30 one-to-one may form a smooth curved surface, which can increase the integrity of the gratings 22, so that the focal length of a single grating 22 is accurately imaged.

Optionally, the 2D pixel points 30 and the corresponding gratings 22 may be sequenced synchronously and randomly, which effectively improves the convenience of splicing the 2D pixel points 30.

Specifically, the ratio of the horizontal dimension to the vertical dimension of each 2D pixel 30 is 1:1, the 2D pixel 30 is the minimum unit of the viewpoint sequence of the naked eye 3D display of the LED, and the ratio of the horizontal dimension to the vertical dimension of the 2D pixel 30 is 1:1, so that the problem that the naked eye display effect of the LED is reduced due to the fact that a gap is generated due to the influence of the dimension in the arrangement process of the 2D pixels 30 can be solved.

The specific application method and the working principle of the above embodiment of the invention are as follows: firstly, based on the LED screen display technology and in combination with the grating 3D display technology, the red LED light sources 31, the green LED light sources 32 and the blue LED light sources 33 are arranged alternately at will to form different types of 2D pixel points 30, then, the plurality of 2D pixel points 30 are arranged in a 3 x 3 manner to form the 3D pixel points 21, the plurality of gratings 22 are attached to the 3D pixel points 21, and the gratings 22 are vertically aligned with the 2D pixel points 30 to form the naked-eye 3D display unit 20, and then, the plurality of naked-eye 3D display units 20 are spliced into the naked-eye display screen 10 at will.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. the 3D pixel points are formed by arranging the 2D pixel points in a 3-by-3 mode, and the plurality of gratings covering the lens part of the 2D pixel points are respectively in one-to-one correspondence with the plurality of 2D pixel points, so that the longitudinal resolution of a single viewpoint is 1/3 of the physical resolution of a screen, and the transverse resolution is 1/3 of the physical resolution of the screen, the ratio of the transverse resolution of the single viewpoint to the physical resolution of the screen is effectively increased, and the problem that the actual display effect of the LED naked-eye display is reduced due to large difference of the longitudinal resolution of the single viewpoint, the transverse resolution and the physical resolution of the screen is solved;

2. by the fact that the size of a single grating is the same as that of a single 2D pixel point which is correspondingly matched with the single grating, when the grating is aligned with the 2D pixel point, the problem that the 3D imaging error is easily caused because the same 2D pixel point is covered by two cutting gratings in different shapes can be avoided;

3. the 2D pixel points 30 and the corresponding gratings are synchronously and randomly sequenced, so that the convenience of splicing the 2D pixel points is effectively improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (1)

1. An LED bare eye display, comprising: the 2D pixel points (30), a plurality of the 2D pixel points (30) are arranged in a 3 x 3 mode to form a 3D pixel point (21); the 2D pixel points (30) are attached with gratings (22) to form naked eye 3D display units (20), and the naked eye 3D display units (20) are spliced to form a naked eye display screen (10); the grating (22) corresponds to the 2D pixel points (30) one by one, and the size of the single grating (22) is the same as that of the single 2D pixel point (30) which is correspondingly matched with the grating; the 2D pixel point (30) comprises a red LED light source (31), a green LED light source (32) and a blue LED light source (33), and the red LED light source (31), the green LED light source (32) and the blue LED light source (33) are arranged in an arbitrary combination manner; the cambered surfaces of the gratings (22) which are in one-to-one correspondence with the 2D pixel points (30) can form a section of smooth cambered surface; the 2D pixel points (30) and the corresponding gratings (22) can be synchronously and randomly sequenced; the ratio of the horizontal size to the vertical size of each 2D pixel point (30) is 1: 1.

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