CN104049374A - LED screen capable of achieving surface light emitting and naked eye three-dimensional display device with LED screen capable of achieving surface light emitting - Google Patents

Abstract

The invention relates to an LED screen capable of realizing surface light emission and a naked-eye three-dimensional display device thereof. The LED screen includes an array of LED pixels, a black matrix between each LED pixel, a barrier frame array arranged above the black matrix, and an array of barrier frames arranged on the barrier frame array for emitting light from each LED pixel. The point light source diverges into a uniform light plate of the surface light source; the LED pixels are in one-to-one correspondence with the barrier frame to ensure that no crosstalk occurs between adjacent LED pixels; the inner wall of each barrier frame array is provided with a reflective film. It is beneficial to conduct the light irradiated on the inner wall of the barrier rib frame. The remarkable advantage of the present invention is that the barrier frame array is used to isolate adjacent light sources to prevent crosstalk; the point light source emitted by the LED pixel is diverged into a surface light source by using a homogeneous plate to reduce or eliminate the black matrix in the LED screen, so that the pixel The dots emit soft light, which solves the problem of moire fringes in the 3D-LED display system and improves the performance of stereoscopic display.

Description

A surface-emitting LED screen and its naked-eye three-dimensional display device

technical field

The invention relates to the field of LED display screens, in particular to an LED screen capable of realizing surface light emission and a naked-eye three-dimensional display device thereof.

Background technique

As shown in Fig. 1 , an LED display screen structure packaged in the prior art mainly includes LED pixels (001) and a black matrix (002) between adjacent pixels. The black matrix in the LED display screen will make the aperture ratio of the display screen small, and the light-emitting surface is illuminated by a point light source, which will inevitably cause problems such as soft light emission and glaring display images. At the same time, when the LED display is applied to the naked-eye 3D-LED, the periodic arrangement between the existing black matrix and the grating array that generates the three-dimensional light splitting will cause Moiré fringes, which will affect the three-dimensional effect of the 3D display and cause the viewer to watch Effect.

The prior art proposes a method for solving the LED black matrix or solving the moire fringes in the naked-eye 3D-LED display. Patent CN 201310566242.2 proposes a solution to the problem of non-luminous black matrix between LED pixels. By covering the surface of the LED display screen with lens array I and lens array II, the LED pixels are enlarged by using the joint action of lens array I and lens array II to eliminate the non-luminous gap between pixels. This method is strict and accurate in designing the focal lengths of lens array I and lens array II, otherwise, crosstalk between adjacent pixels will easily occur after the image is enlarged by lens array I and lens array II; at the same time, the processing accuracy of lens array I and lens array II and The installation process needs to be precise, which causes the LED display screen of the device to be manufactured with complex process and high cost. CN200710048223.5 provides a naked-eye three-dimensional display device and method without moiré interference fringes. One of the methods is to eliminate moiré fringes by cooperating with a scattering screen and a grating-type 3D naked-eye three-dimensional display, or by coating a layer on the surface of the grating The anti-reflection coating method is used to eliminate moiré fringes. Although these two methods can solve the moiré fringes, crosstalk will occur between adjacent pixels. Light mixing occurs on the pixel. For 2D display, the impact is that the picture becomes blurred and the image quality deteriorates. For 3D-LED, the three-dimensional effect cannot be observed. At the same time, the specification does not propose to solve the problem of crosstalk between adjacent pixels and the solution.

To sum up, the existing LED screen has a black matrix, and because the LED pixels emit light at points, the light is rather dazzling. At the same time, when applied to a 3D-LED stereoscopic display system, the black matrix and grating slits will produce moiré fringes and affect the viewing effect. Therefore, the main problem to be solved by the present invention is to make the light emission of the LED screen uniform and soft, and solve the black matrix, and also solve the problems of moiré fringes in 3D-LED, as well as the crosstalk caused by the solutions proposed in several other patents An improvement and optimization of the problem.

Contents of the invention

The purpose of the present invention is to provide a surface-emitting LED screen and its naked-eye three-dimensional display device to solve the problem of making the LED screen light even and soft, and solving the black matrix, and also solving the moiré fringes in 3D-LEDs, etc. question.

In order to achieve the above object, the technical solution of the present invention is: an LED screen that can realize surface emission, the LED screen includes an LED pixel point array, a black matrix between each LED pixel point, and a barrier wall arranged above the black matrix The frame array and the uniform plate for diverging the point light source emitted by each LED pixel into a surface light source arranged on the barrier frame array; the LED pixels correspond to the barrier frame one by one to ensure that adjacent LED pixels do not have crosstalk; the inner wall of each barrier frame is provided with a reflective film, which is beneficial to conduct the light irradiated on the inner wall of the barrier frame.

In the embodiment of the present invention, the barrier frame array and the light uniform plate are an integrated light uniform array module, or the barrier frame array and the light uniform plate are assembled to form a light uniform array module.

In the embodiment of the present invention, the barrier frame array is a combined frame of one or more specific geometric shapes; the specific geometric shapes include square, trapezoid, arc and cone.

In the embodiment of the present invention, the light uniform plate is arranged on the barrier frame array; or the light uniform plate is embedded inside the barrier frame array, and the exit surface of the light uniform plate is outside the barrier frame array. The frames are parallel.

In the embodiment of the present invention, the light uniform plate is a flat panel that emits point light sources emitted by LED pixels into surface light sources; the material used for the light uniform plate includes frosted PC plastic, frosted PMMA, frosted PET, frosted PVC, frosted PP, frosted PS, frosted epoxy resin, frosted glass or a mixture of liquid crystal polymer and photosensitive resin.

In the embodiment of the present invention, an array of opaque layers for improving the contrast of the LED display screen is arranged between the barrier frame array and the light uniform plate.

In the embodiment of the present invention, the opaque layer array is disposed on the upper surface of the barrier frame array; or the opaque layer array is disposed on the surface of the light uniform plate, and The upper surfaces are in one-to-one contact; or the opaque layer array is arranged in the light uniform plate, and the lower surface of the opaque layer array is in one-to-one contact with the upper surface of the barrier frame array, the The upper surface of the opaque layer array is on a horizontal line with the upper surface of the light uniform plate.

In the embodiment of the present invention, a light guide layer is further arranged between the barrier frame array and the light uniform plate.

In the embodiment of the present invention, heat dissipation channels for heat dissipation and cooling are provided between adjacent barrier rib frames of the barrier frame frame array.

The present invention also provides a naked-eye three-dimensional display including the surface-emitting LED screen, which is characterized in that it includes a surface-emitting LED screen, a light-splitting grating and a circuit driving component.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The present invention uses barrier frame arrays to isolate adjacent light sources to prevent light crosstalk;

The inner wall of the array is provided with a reflective film, which is conducive to conducting the light irradiated on the inner wall of the barrier frame and reducing the loss of light;

(2) The present invention also utilizes the uniform light plate arranged on the surface of the barrier frame array to diverge the LED point light source into a surface light source, reducing the

Or eliminate the black matrix in the LED screen to make the pixels softer; and because of the elimination or reduction of the black matrix in the LED screen, it also solves the problem of moire fringes in the 3D-LED display system and improves the stereoscopic display performance.

Description of drawings

Figure 1 is a schematic diagram of the structure of a traditional LED screen.

FIG. 2 is an overall schematic diagram of an LED screen that can realize surface emission provided by the first embodiment of the present invention.

Fig. 3 is a partial structural diagram of an LED screen capable of realizing surface emission provided by the first embodiment of the present invention.

Fig. 4 is a schematic diagram of a frosted smooth layer in the first embodiment of the present invention.

Fig. 5 is a light path diagram of a realizable surface-emitting LED screen provided by the first embodiment of the present invention.

FIG. 6 is a schematic structural diagram of an LED screen that can realize surface emission according to the second embodiment of the present invention.

Fig. 7 is a schematic structural diagram of an LED screen that can realize surface emission according to the third embodiment of the present invention.

Fig. 8 is a schematic structural diagram of an LED screen capable of realizing surface emission provided by the fourth embodiment of the present invention.

Fig. 9 is a light uniform layer structure provided by the fifth embodiment of the present invention.

Fig. 10 is a schematic structural diagram of an LED screen capable of realizing surface emission provided by the sixth embodiment of the present invention.

Fig. 11 is a structure diagram of a moiré-free 3D-LED display system based on a slit grating provided by the present invention.

Fig. 12 is a structure diagram of a Moiré-free 3D-LED display system based on a cylindrical lens grating provided by the present invention.

In the figure, 001, 011, 021, 031, 041, and 061 are LED pixels,

002, 012, 022, 032, 042, 062 are black matrix,

013, 023, 033, 043, 063 are barrier frames,

014, 024, 034, 044, 054, 064 are uniform light plates,

015, 025, 035, 045, 065 are reflective films,

0341 is light uniform layer, 0342 is opaque layer, 0442 is photosensitive resin, 0443 is liquid crystal polymer, 0541 is dot of light guide plate, 066 is heat dissipation channel,

071 and 081 are circuit drive components, 072 and 082 are LED display screens, 073 is a slit grating, and 083 is a cylindrical lens grating.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments and related drawings. In the drawings, the thicknesses of layers and regions are exaggerated for clarity, but should not be considered as strictly reflecting the proportional relationship of geometric dimensions as a schematic diagram. Here, the referenced figures are schematic illustrations of idealized embodiments of the present invention, and the illustrated embodiments of the present invention should not be considered limited to the particular shapes of the regions shown in the figures, but include resulting shapes, such as those caused by manufacturing. deviation. All are represented by rectangles in this embodiment, and the representation in the figure is schematic, but this should not be considered as limiting the scope of the present invention.

The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

The present invention provides an LED screen that can realize surface emission. The LED screen includes an LED pixel point array, a black matrix between each LED pixel point, a barrier frame array disposed above the black matrix, and a barrier frame array disposed on the barrier frame. The uniform light plate on the array is used to diverge the point light sources emitted by each LED pixel into a surface light source; the LED pixels correspond to the barrier frame one by one, so as to ensure that adjacent LED pixels do not have crosstalk; the The inner wall of each barrier frame is provided with a reflective film to facilitate the conduction of light irradiated on the inner wall of the barrier frame.

first embodiment

As shown in Figure 2, an LED screen that can realize surface emission provided by the first embodiment of the present invention, the LED screen includes an array of LED pixels (the array of LED pixels is composed of LED pixels (011)), LED pixels ( 011) between the black matrix (012), the barrier frame (013) set on the black matrix (012) (the barrier frame (013) forms a barrier frame array), the uniform plate set on the barrier frame (013) (014). As shown in Figure 2, in order to prevent crosstalk between adjacent LED pixels (011), one LED pixel (011) corresponds to one barrier frame (013).

As shown in Figure 3, in the specific implementation process, in the first embodiment of the present invention, the width between the black matrix between the LED pixels is preferably 1 mm, and the LED pixel points are 2 mm; the barrier frame (013) The material is preferably acrylic board. The inner wall of each barrier frame (013) is provided with a reflective film (015), the purpose of which is to transmit the light irradiated on the barrier to the outside to reduce light loss.

The barrier frame array and the light uniform plate can be an integrated uniform light array module, or the barrier frame array and the light uniform plate can be assembled to form a uniform light array module; the barrier frame is a specific geometric shape A combination frame of one or more of; the specific geometric shapes include square, trapezoid, circular arc and cone. The uniform light plate can be arranged on the barrier frame; it can also be embedded inside the barrier frame, and the exit surface of the uniform light plate is parallel to the outer frame surface of the barrier frame array; it is arranged on the barrier frame array The outer equalizing plate includes frosted PC plastic, frosted PMMA, frosted PET, frosted PVC, frosted PP, frosted PS, frosted epoxy resin, frosted glass or a mixture of liquid crystal polymer and photosensitive resin.

In the specific implementation process, the first embodiment of the present invention preferably connects the rectangular barrier frame (013) with a thickness of 0.25 mm and the frosted PC plastic uniform light plate (014) with UV glue to self-assemble into a uniform light array module, as shown in Figure 4.

The light-emitting principle of the surface-emitting LED screen provided by the first preferred embodiment of the present invention is further described as follows. As shown in Figure 5, the light emitted by the LED pixels (011) and the light reflected by the reflective film (015) on the barrier frame (013) emits diffuse reflection on the frosted PC plastic uniform plate (014), and the LED Point lights become area lights. On the one hand, the width of the barrier frame (013) is smaller than that of the original black matrix (012), reducing the size of the black matrix. On the other hand, the diffuse emission of the frosted PC plastic uniform plate (014) will also diffuse to a certain extent, so that the black matrix caused by the barrier frame is eliminated. The significant advantage of the method provided by the first preferred embodiment of the present invention is that, compared with the original LED point light source, the point light source becomes a surface light source to emit light, the light-emitting area increases, and the light source is softer; at the same time, the LED light source is eliminated. The black matrix problem of the screen also eliminates the moiré fringe problem of the 3D-LED stereoscopic display system.

second embodiment

Figure 6 shows a surface-emitting LED screen that can realize surface emission provided by the second embodiment of the present invention. The LED screen includes an array of LED pixels, and a black matrix (022) between the LED pixels (021) is arranged on the black The barrier frame (023) on the matrix (022) (the barrier frame (023) forms a barrier frame array), and the uniform plate (024) arranged on the barrier frame array. As shown in Figure 6, in order to prevent crosstalk between adjacent LED pixels, one LED pixel (021) corresponds to one barrier frame (023).

In the specific implementation process, in the second embodiment of the present invention, it is preferable that the width between the black squares between the LED pixels is 1 mm, and the pixel points are 2 mm; the material of the barrier frame is preferably made of opaque PVC plastic. The inner wall of each barrier frame (024) is provided with a reflective film (025), the purpose of which is to transmit the light irradiated on the barrier to the outside to reduce light loss.

The barrier frame array and the light uniform plate can be an integrated uniform light array module, or the barrier frame array and the light uniform plate can be assembled to form a uniform light array module; the barrier frame is a specific geometric shape A combination frame of one or more of; the specific geometric shapes include square, trapezoid, circular arc and cone. The uniform light plate can be arranged on the barrier frame; it can also be embedded inside the barrier frame, and the exit surface of the uniform light plate is parallel to the outer frame surface of the barrier frame array; it is arranged on the barrier frame array The outer equalizing plate includes frosted PC plastic, frosted PMMA, frosted PET, frosted PVC, frosted PP, frosted PS, frosted epoxy resin, frosted glass or a mixture of liquid crystal polymer and photosensitive resin. An opaque layer array for improving the contrast of the LED display screen can be arranged between the barrier frame array and the light uniform plate; the opaque layer array is arranged on the upper surface of the barrier frame array; surface, and in one-to-one contact with the upper surface of the barrier frame array; or arranged in the light uniform plate, and the lower surface of the opaque layer array is in one-to-one contact with the upper surface of the barrier frame array , the upper surface of the opaque layer array and the upper surface of the light uniform plate are on a horizontal line.

In the specific implementation process, in the second embodiment of the present invention, the light uniform plate (024) is preferably embedded in the rectangular barrier frame (023) with a thickness of 0.25 mm, so that the LED pixels (021) and the light uniform plate ( 024) are in one-to-one correspondence, and the upper surface of the uniform plate (024) and the opaque layer of the opaque array on the surface of the barrier frame are on the same horizontal line, self-assembled into a uniform array module, as shown in Figure 6.

third embodiment

As shown in Figure 7, an LED screen that can realize surface emission provided by the third embodiment of the present invention, the LED screen includes LED pixels, and a black matrix (032) between the LED pixels (031) is arranged on the black matrix The barrier frame (033) on (032) (the barrier frame (033) forms a barrier frame array), and the light uniform plate (034) arranged on the barrier frame array. As shown in Figure 7, in order to prevent crosstalk between adjacent LED pixels, one LED pixel (031) corresponds to one barrier frame (033).

In the specific implementation process, in the third embodiment of the present invention, it is preferable that the width between the black bars between the LED pixels is 1 mm, and the pixel points are 2 mm; the material of the barrier frame is preferably made of light-transmitting PVC plastic. The inner wall of each barrier frame (034) is provided with a reflective film (035), the purpose of which is to transmit the light irradiated on the barrier to the outside to reduce light loss.

The barrier frame array and the light uniform plate can be an integrated uniform light array module, or the barrier frame array and the light uniform plate can be assembled to form a uniform light array module; the barrier frame is a specific geometric shape A combination frame of one or more of; the specific geometric shapes include square, trapezoid, circular arc and cone. The uniform light plate can be arranged on the barrier frame; it can also be embedded inside the barrier frame, and the exit surface of the uniform light plate is parallel to the outer frame surface of the barrier frame array; it is arranged on the barrier frame array The outer equalizing plate includes frosted PC plastic, frosted PMMA, frosted PET, frosted PVC, frosted PP, frosted PS, frosted epoxy resin, frosted glass or a mixture of liquid crystal polymer and photosensitive resin. An opaque layer array for improving the contrast of the LED display screen can be arranged between the barrier frame array and the light uniform plate; the opaque layer array is arranged on the upper surface of the barrier frame array; surface, and in one-to-one contact with the upper surface of the barrier frame array; or arranged in the light uniform plate, and the lower surface of the opaque layer array is in one-to-one contact with the upper surface of the barrier frame array , the upper surface of the opaque layer array and the upper surface of the light uniform plate are on a horizontal line.

As shown in Fig. 7, in the specific implementation process, the third embodiment of the present invention preferably has a rectangular barrier frame array with a thickness of 0.25 mm and the light uniform plate (034) are integrally formed to form a uniform light array module. And the opaque array (composed of the opaque layer (0342)) is preferably arranged in the light uniform plate (034), the lower surface of the opaque array is in one-to-one contact with the upper surface of the barrier frame array , the upper surface of the opaque layer (0342) of the opaque array is on a horizontal line with the upper surface of the light uniform layer (0341).

Fourth embodiment

As shown in Figure 8, an LED screen that can realize surface emission provided by the fourth embodiment of the present invention, the LED screen includes an array of LED pixels, and a black matrix (042) between the LED pixels (041) is arranged on the black matrix The barrier frame array (composed of the barrier frame (043)) on (042), and the uniform plate (044) arranged on the barrier frame array. In order to prevent crosstalk between adjacent LED pixels, one LED pixel (041) corresponds to one barrier frame (043).

In the specific implementation process, in the fourth embodiment of the present invention, it is preferable that the width between the black squares between the LED pixels is 1 mm, and the pixel points are 2 mm; the material of the barrier frame is preferably made of light-transmitting PVC plastic. The inner wall of each barrier frame (043) is provided with a reflective film (045), the purpose of which is to transmit the light irradiated on the barrier to the outside to reduce light loss.

The barrier frame array and the light uniform plate can be an integrated uniform light array module, or the barrier frame array and the light uniform plate can be assembled to form a uniform light array module; the barrier frame is a specific geometric shape A combination frame of one or more of; the specific geometric shapes include square, trapezoid, circular arc and cone. The uniform light plate can be arranged on the barrier frame; it can also be embedded inside the barrier frame, and the exit surface of the uniform light plate is parallel to the outer frame surface of the barrier frame array; it is arranged on the barrier frame array The outer equalizing plate includes frosted PC plastic, frosted PMMA, frosted PET, frosted PVC, frosted PP, frosted PS, frosted epoxy resin, frosted glass or a mixture of liquid crystal polymer and photosensitive resin. An opaque layer array for improving the contrast of the LED display screen can be arranged between the barrier frame array and the light uniform plate; the opaque layer array is arranged on the upper surface of the barrier frame array; surface, and in one-to-one contact with the upper surface of the barrier frame array; or arranged in the light uniform plate, and the lower surface of the opaque layer array is in one-to-one contact with the upper surface of the barrier frame array , the upper surface of the opaque layer array and the upper surface of the light uniform plate are on a horizontal line.

In the specific implementation process, the fourth embodiment of the present invention preferably has a rectangular barrier frame array with a thickness of 0.25 mm and the light uniform plate (044) are cured with UV glue, and assembled into a light uniform array module. And the light uniform plate is mixed with liquid crystal polymer (0443) and photosensitive resin (0442), and the light uniform plate (044) is formed under ultraviolet irradiation, as shown in FIG. 8 . In the case that other structures are the same as those of the first embodiment, the uniform plate is replaced. Since the liquid crystal polymer has optical characteristics of scattering, the LED dot pixel is enlarged by it, and the black matrix on the back is covered, so how to solve the problem of the black matrix.

fifth embodiment

The fifth embodiment of the present invention is based on any one of the above-mentioned implementations to provide an LED screen that can realize surface emission. Keeping other parameters and structures unchanged, a layer of light guide plate (054) is arranged between the barrier frame array and the uniform plate, as shown in FIG. 9 . In this embodiment, the size of the dots (0541) of the light guide plate is 200 microns, and in the LED screen of P3 specification, each barrier frame contains 100 dots of the light guide plate.

Sixth embodiment

The sixth embodiment of the present invention is based on any one of the above-mentioned implementations to provide an LED screen that can realize surface emission. Its structure is shown in Figure 10. The LED screen includes an array of LED pixels, a black matrix (062) between the LED pixels (061), and a barrier frame array (composed of barrier frames ( 063)), a uniform plate (064) arranged on the barrier frame array. In order to prevent crosstalk between adjacent LED pixels, one LED pixel (061) corresponds to one barrier frame (063).

The difference from the above embodiment is that in this embodiment the barrier frame (063) includes upper and lower parts, wherein the lower part close to the uniform plate (064) is a square frame, and the upper part close to the PCB is a trapezoidal frame. A heat dissipation channel (066) is included between the adjacent barrier frames (063), which are used for heat dissipation and cooling. The inner wall of the barrier frame (063) is pasted with a corresponding reflective film (065), including the upper and lower parts.

According to this embodiment, the structure of the barrier frame ( 063 ) can still be deformed, including cubes, trapezoids, circular arcs, cones, or other structures and combinations thereof. The LED screen that can realize surface emission is formed by the array of these LED pixels.

So far, the present invention provides an introduction to the embodiments of the LED screen that can realize surface light emission.

Using the surface-emitting LED screens provided in the above-mentioned embodiments 1 to 6, the present invention also provides a moiré-free 3D-LED stereoscopic display based on any of the above-mentioned surface-emitting LED screens, including:

A surface-emitting LED screen;

a spectroscopic grating;

and other circuit drivers.

Figure 11 is a 3D-LED display without moire fringes provided by the present invention, including:

A surface-emitting LED display (072),

a slit grating (073),

and circuit drive components (071);

Figure 11 is a 3D-LED display without Moiré fringes provided by the present invention, from the triangle similarity relationship, it can be obtained

in, is the length of the light-transmitting region of the grating, is the length of the grating shading area, is the grating pitch length, is the 2D pixel pitch, L is the viewing distance, d is the distance between the grating and the 2D screen, K is the number of viewpoints (the number of subimages to be included in the spectroscopic pattern), and Q is the interpupillary distance of the human eye.

Simultaneous equations, the light-transmitting area of the grating can be obtained The length, the grating pitch G, and the distance d between the grating and the 2D screen are:

In this embodiment, the pixel units on the LED display pass through the slit grating, the LED pixels of the left image are incident to the observer's left eye, and the LED pixels of the right image are incident to the observer's right eye, observing the brain to synthesize a three-dimensional Display screen. The specific parameters of the stereoscopic display system can be calculated according to the above formula.

As shown in Figure 12, the present invention provides another kind of 3D-LED display without moire fringes, including:

A surface-emitting LED display (082),

One column lens grating (083);

and circuit drive components (081).

As shown in Figure 12, it is a schematic diagram of the structure of the cylindrical lens stereoscopic display system in this embodiment, which can be obtained from optical knowledge:

The radius of curvature r of the cylindrical lens is

The cylindrical lens pitch p is

The thickness d of the cylindrical lens is

in, is the 2D pixel pitch, L is the viewing distance, n is the refractive index of the cylindrical lens, Q is the distance between adjacent viewpoints, K is the number of 3D viewpoints, and D is the distance between the cylindrical lens grating and the 2D display.

In this embodiment, the pixel units on the LED display pass through the cylindrical lens beam splitting grating, the LED pixels of the left image are incident to the observer's left eye, and the LED pixels of the right image are incident to the observer's right eye, observing the brain synthesis Stereo display screen. The specific parameters of the stereoscopic display system can be calculated according to the above formula.

The LED display used in the 3D-LED display does not have a black matrix or only has a small black matrix, and the Moiré fringe is also eliminated or reduced, and the observer obtains a better visual effect.

The above-listed preferred embodiments have further described the purpose, technical solutions and advantages of the present invention in detail. It should be understood that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included within the protection scope of the present invention.

Claims (10)

1. A surface-emitting LED screen, characterized in that: the LED screen includes an array of LED pixels, a black matrix between each LED pixel, a barrier frame array arranged above the black matrix, and an array of barriers arranged above the black matrix. The light uniform plate on the barrier frame array is used to diverge the point light sources emitted by each LED pixel into a surface light source; the LED pixels correspond to the barrier frame one by one, so as to ensure that adjacent LED pixels do not have crosstalk ; The inner wall of each barrier frame is provided with a reflective film, which is beneficial to conduct the light irradiated to the inner wall of the barrier frame. 2. A surface-emitting LED screen according to claim 1, characterized in that: the barrier frame array and the light uniform plate are an integrated uniform light array module, or the barrier frame array and the light uniform plate are integrated The uniform light plate is assembled into a uniform light array module. 3. A surface-emitting LED screen according to claim 1, characterized in that: the barrier frame array is one or more combination frames of specific geometric shapes; the specific geometric shapes include square , trapezoidal, arc-shaped and conical. 4. The surface-emitting LED screen according to claim 1, characterized in that: the light uniformity plate is arranged on the barrier wall frame array; or the light uniformity plate is embedded in the barrier wall frame array inside, and the outgoing surface of the uniform light plate is parallel to the outer frame surface of the barrier rib frame array. 5. A surface-emitting LED screen according to claim 1, characterized in that: the light uniform plate is a plane panel that emits point light sources emitted by LED pixels into surface light sources; the light uniform plate adopts Materials include frosted PC plastic, frosted PMMA, frosted PET, frosted PVC, frosted PP, frosted PS, frosted epoxy resin, frosted glass or a mixture of liquid crystal polymer and photosensitive resin. 6 . The surface-emitting LED screen according to claim 1 , wherein an array of opaque layers for improving the contrast of the LED display screen is arranged between the barrier frame array and the light uniform plate. 7 . 7. The surface-emitting LED screen according to claim 6, characterized in that: said opaque layer array is arranged on the upper surface of said barrier frame array; or said opaque layer array is arranged On the surface of the light uniform plate, and in one-to-one contact with the upper surface of the barrier frame array; or the opaque layer array is arranged in the light uniform plate, and the lower surface of the opaque layer array The upper surface of the barrier frame array is in one-to-one correspondence contact, and the upper surface of the opaque layer array is on a horizontal line with the upper surface of the light uniform plate. 8 . The surface-emitting LED screen according to claim 1 , wherein a light guide layer is arranged between the barrier frame array and the light uniform plate. 9 . 9 . The surface-emitting LED screen according to claim 1 , wherein a heat dissipation channel for heat dissipation and cooling is provided between adjacent barrier frame frames of the barrier frame array. 10. A naked-eye three-dimensional display device comprising the LED screen according to any one of claims 1-9, characterized in that it comprises a surface emitting LED screen, a light splitting grating and a circuit driving component.