WO2020087726A1

WO2020087726A1 - Method for preparing three-dimensional display screen, three-dimensional display screen and electronic device

Info

Publication number: WO2020087726A1
Application number: PCT/CN2018/123765
Authority: WO
Inventors: 王爱良
Original assignee: 歌尔股份有限公司
Priority date: 2018-10-29
Filing date: 2018-12-26
Publication date: 2020-05-07
Also published as: CN109300751A; CN109300751B

Abstract

Disclosed are a method for preparing a three-dimensional display screen, a three-dimensional display screen and an electronic device. The three-dimensional display screen comprises M manufacturing units which are stacked, wherein M is an integer greater than 1. The preparation method comprises: a . providing a SiO₂ substrate (401); b, preparing a first conductive layer on the SiO₂ substrate (402); c . preparing a light-emitting layer (403) on the first conductive layer (402); d, preparing a second conductive layer (404) on the light-emitting layer (403); e . repeating steps a-d (M-1) times to obtain a three-dimensional display screen blank; f, sintering the three-dimensional display screen blank in an oxygen-free environment to obtain a three-dimensional display screen. By means of the method, the three-dimensional display screen can be prepared, and the method is simple.

Description

Preparation method of stereoscopic display screen, stereoscopic display screen and electronic equipment

This application requires the priority of the Chinese patent application submitted to the China Patent Office on October 29, 2018, with the application number 201811267391.8 and the invention titled "A method for preparing a stereoscopic display, stereoscopic display and electronic equipment" The content is incorporated into this application by reference.

Technical field

The present application belongs to the technical field of display screens, and particularly relates to a preparation method of a three-dimensional display screen, a three-dimensional display screen and electronic equipment.

Background technique

With the development of display technology, people's demand for display technology in the field of consumer electronics is becoming more and more diversified and personalized, and miniaturized stereoscopic display devices are constantly emerging.

However, the manufacturing process of the existing stereoscopic display device is relatively complicated and the conditions are harsh. Therefore, it is particularly important to develop a simpler method for preparing a stereoscopic display device.

Summary of the invention

In view of this, the purpose of some embodiments of the present application is to provide a method for manufacturing a stereoscopic display screen, a stereoscopic display screen and an electronic device. The method can produce a stereoscopic display screen and the method is simple.

On the one hand, some embodiments of the present application provide a method for manufacturing a three-dimensional display screen, the three-dimensional display screen includes superimposed M-layer manufacturing units, where M is an integer greater than 1; the preparation method includes:

a. Provide SiO ₂ substrate;

b. A first conductive layer is prepared on the SiO ₂ substrate;

c. preparing a light-emitting layer on the first conductive layer;

d. preparing a second conductive layer on the light-emitting layer;

e. Repeat steps a to d (M-1) times to obtain the blank of the stereoscopic display screen;

f. The stereoscopic display blank is sintered in an oxygen-free environment to obtain the stereoscopic display.

Optionally, the first conductive layer includes uniformly distributed first electrode lines and first filling regions other than the first electrode lines;

The second conductive layer includes a uniformly distributed second electrode line and a second filling area except the second electrode line; wherein,

The second electrode line is perpendicular to the first electrode line.

Optionally, the step b includes:

3D printing a transparent conductive ceramic material on the SiO ₂ substrate to form the first electrode line;

3D printing SiO ₂ in an area other than the first electrode line to form the first filling area;

The step d includes:

3D printing a transparent conductive ceramic material on the light emitting layer to form the second electrode line;

SiO ₂ is 3D printed in an area other than the second electrode line to form the second filling area.

Optionally, the light-emitting layer includes a light-emitting unit and a third filling area other than the light-emitting unit;

The light-emitting unit is located at the intersection of the projection of the first electrode line on the light-emitting layer and the projection of the second electrode line on the light-emitting layer.

Optionally, the first electrode line is a single line, the second electrode line is a single line, and the light emitting unit includes a single pixel unit.

Optionally, the step c includes:

3D printing a monochromatic electroluminescent oxide on the first conductive layer to form the pixel unit;

3D printing SiO ₂ in an area other than the pixel unit to form the third filling area.

Optionally, the first electrode line is a double line, the second electrode line is a double line, and the light emitting unit includes a first pixel unit, a second pixel unit, a third pixel unit, and a fourth pixel unit;

The first pixel unit, the second pixel unit, the third pixel unit and the fourth pixel unit are respectively located in the projection of the first electrode line on the light emitting layer and the projection of the second electrode line on the light emitting layer The four top corner positions of the formed rectangle.

Optionally, the step c includes:

3D printing a first primary color electroluminescent substance on the first conductive layer to form the first pixel unit;

3D printing a second primary color electroluminescent substance on the first conductive layer to form the second pixel unit;

3D printing a third primary color electroluminescent substance on the first conductive layer to form the third pixel unit;

3D printing a white light electroluminescent substance on the first conductive layer to form the fourth pixel unit;

SiO ₂ is printed on the first conductive layer except for the light emitting unit to form the third filled area.

Optionally, the vertical projections of all the light-emitting units of the M-layer manufacturing unit overlap.

Optionally, the vertical projections of all the first electrode lines of the M-layer manufacturing unit overlap, and the vertical projections of all the second electrode lines overlap.

On the other hand, some embodiments of the present application provide a stereoscopic display screen, the stereoscopic display screen includes a superimposed M-layer manufacturing unit, where M is an integer greater than 1; wherein, the manufacturing unit includes:

SiO ₂ substrate;

A first conductive layer on the SiO ₂ substrate;

A light-emitting layer above the first conductive layer; and

A second conductive layer above the light-emitting layer.

The second electrode line is perpendicular to the first electrode line.

In still another aspect, some embodiments of the present application provide an electronic device that uses the stereoscopic display screen as described in the foregoing technical solution.

A method for manufacturing a stereoscopic display screen provided by some embodiments of the present application. The stereoscopic display screen includes a stacked M-layer manufacturing unit, where M is an integer greater than 1; the preparation method includes: a. Providing a SiO ₂ substrate; b , Preparing a first conductive layer on the SiO ₂ substrate; c, preparing a light-emitting layer on the first conductive layer; d, preparing a second conductive layer on the light-emitting layer; e, repeating step a ~ D (M-1) times to obtain a three-dimensional display blank; f. Sinter the three-dimensional display blank in an oxygen-free environment to obtain the three-dimensional display. In some embodiments of the present application, a three-dimensional display screen can be prepared only by sequentially forming a first conductive layer, a light-emitting layer, and a second conductive layer stacked on an SiO ₂ substrate in combination with oxygen-free sintering, and the method is simple. The display screen manufactured by this method only includes several layers of manufacturing units, each of which includes an SiO ₂ substrate, a first conductive layer, a light-emitting layer and a second conductive layer arranged in sequence. During stereoscopic display, the display object can be made correspondingly The units are layered, and the display objects corresponding to the corresponding light-emitting units in each light-emitting layer are illuminated, so that the display screen achieves the effect of stereoscopic display on the display objects; the structure of the stereoscopic display screen is simple.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only It is a part of the drawings in this application. For those of ordinary skill in the art, without paying any creative work, other drawings can be obtained according to the provided drawings.

FIG. 1 is a process flowchart of a stereoscopic display screen provided by some embodiments of this application;

FIG. 2 is a schematic diagram of a monochromatic light-emitting structure of a stereoscopic display screen provided by some embodiments of the present application;

FIG. 3 is a schematic structural diagram of a colored light emitting from a stereoscopic display screen provided by some embodiments of the present application;

4 is a combined schematic diagram of the structure of a layer of manufacturing units of a stereoscopic display screen in some embodiments of the present application;

FIG. 5 is a schematic diagram of the structure decomposition of a layer of manufacturing units of a stereoscopic display screen in some embodiments of the present application;

6 is a schematic structural diagram of a stereoscopic display blank provided by some embodiments of the present application;

7 is a display effect of a stereoscopic display screen prepared by some embodiments of the present application.

detailed description

The technical solutions in some embodiments of the present application will be described below with reference to the drawings in some embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

Some embodiments of the present application provide a method for manufacturing a stereoscopic display screen. The stereoscopic display screen includes superimposed M-layer manufacturing units, where M is an integer greater than 1; the manufacturing method includes:

a. Provide SiO ₂ substrate;

b. A first conductive layer is prepared on the SiO ₂ substrate;

c. preparing a light-emitting layer on the first conductive layer;

d. preparing a second conductive layer on the light-emitting layer;

Some embodiments of the present application only prepare the M-layer manufacturing unit by stacking, that is, the first conductive layer, the light-emitting layer, and the second conductive layer are sequentially prepared on the SiO ₂ substrate to form the first-layer manufacturing unit, and then the manufacturing is repeated (M-1 ) Layer manufacturing unit, and finally combined with oxygen-free sintering to prepare a three-dimensional display, the method is simple.

In some embodiments, M is greater than 10, or M is greater than 100.

Referring to FIG. 1, FIG. 1 is a process flowchart of a stereoscopic display screen provided by some embodiments of the present application.

In the preparation method provided by some embodiments of the present application, an SiO ₂ substrate is first provided. In some embodiments, the SiO ₂ substrate is prepared by the following method:

The SiO ₂ slurry is 3D printed to form an SiO ₂ substrate.

In some embodiments of the present application, the particle size of SiO ₂ in the SiO ₂ slurry is less than or equal to 1 μm.

After obtaining the SiO ₂ substrate, some embodiments of the present application prepare a first conductive layer on the SiO ₂ substrate. The first conductive layer includes uniformly distributed first electrode lines and first filling regions other than the first electrode lines. In some embodiments, preparing the first conductive layer on the SiO ₂ substrate specifically includes:

First, 3D printing a transparent conductive ceramic material on the SiO ₂ substrate to form the first electrode line;

Then, SiO ₂ is 3D printed in an area other than the first electrode line to form the first filling area.

In some embodiments of the present application, the transparent conductive ceramic material includes ITO conductive oxide (90% In ₂ O ₃ , 10% SnO ₂ ); the particle size of the transparent conductive ceramic material is less than or equal to 1 μm.

In some embodiments of the present application, the process of forming the first electrode line and the first filling region may be performed synchronously or not, depending on the specific device.

After obtaining the first conductive layer, some embodiments of the present application prepare a light-emitting layer on the first conductive layer. The light-emitting layer includes a light-emitting unit and a third filling area other than the light-emitting unit; the light-emitting unit is located between the projection of the first electrode line on the light-emitting layer and the projection of the second electrode line on the light-emitting layer Position of intersection. The process of forming the light-emitting unit and the third filling area may be performed synchronously or not, depending on the specific device. In some embodiments of the present application, a plurality of the light-emitting units are arranged in an array; or, arranged in an array of equal intervals.

After obtaining the light-emitting layer, some embodiments of the present application prepare a second conductive layer on the light-emitting layer. The second conductive layer includes uniformly distributed second electrode lines and a second filling area except for the second electrode lines; wherein the second electrode lines are perpendicular to the first electrode lines. In some embodiments, the preparing the second conductive layer above the light-emitting layer may include:

First, 3D printing a transparent conductive ceramic material on the light-emitting layer to form the second electrode line;

Then, SiO ₂ is 3D printed in an area other than the second electrode line to form the second filling area.

In some embodiments of the present application, the order of forming the second electrode line and the second filling area is not limited, and the second electrode line may be printed first and then the second filling area may be printed; or may be formed by simultaneous printing.

In some embodiments of the present application, the first electrode line is a single line, the second electrode line is a single line, and the light emitting unit includes a single pixel unit; preparing the light emitting layer over the first conductive layer may include:

First, 3D printing a monochromatic electroluminescent substance on the first conductive layer to form the pixel unit;

Then, SiO ₂ is 3D printed in an area other than the pixel unit to form the third filled area.

In some embodiments of the present application, monochromatic electroluminescence refers to light emission with only one color. Monochromatic electroluminescent substances include ZnS and metal ions; the metal ions include Mn ions, Cu ions, or K ions; the metal ions may be provided in the form of salts containing metal ions, or in the form of oxides containing metal ions provide.

In some embodiments of the present application, the first electrode line and the second electrode line are both single lines, and the materials of the first electrode line and the second electrode line are both ITO conductive oxides, and when printing monochromatic electroluminescent substances , The stereoscopic display is monochromatic. Referring to FIG. 2, FIG. 2 is a schematic diagram of a monochromatic light-emitting structure of a stereoscopic display screen provided by some embodiments of the present application.

In other embodiments of the present application, the first electrode line is a double line, the second electrode line is a double line, and the light emitting unit includes a first pixel unit, a second pixel unit, a third pixel unit, and a Four pixel units; the first pixel unit, the second pixel unit, the third pixel unit and the fourth pixel unit are respectively located on the projection of the first electrode line on the light emitting layer and the second electrode line on the Four corner positions of the rectangle formed by the projection of the light-emitting layer; the preparing the light-emitting layer above the first conductive layer may include:

In some embodiments of the present application, the order of forming the first pixel unit, the second pixel unit, the third pixel unit, and the fourth pixel unit is not limited, and each pixel unit may be prepared by 3D printing at the same time, or may not be carried out . The first pixel unit, the second pixel unit, the third pixel unit and the fourth pixel unit are distributed in the form of an array, or are distributed in the form of an array at equal intervals. In some embodiments of the present application, the first primary color electroluminescent substance, the second primary color electroluminescent substance, the third primary color electroluminescent substance and the white light electroluminescent substance constitute a 4-spot pixel point, distributed in a rectangular or square.

In some embodiments of the present application, the first electrode line is a single line, the second electrode line is a single line, the width of the first electrode line is 0.8 to 1.2 μm; the spacing between adjacent first electrode lines is 1 to 10 μm ; The spacing between adjacent second electrode lines is 1 ~ 10μm.

In some embodiments of the present application, the single pixel unit is a single pixel; the diameter of the single pixel is 0.8-1.2 μm. The diameter of the single pixel point is equal to the width of the first electrode line of the single line; the width of the second electrode line of the single line is equal to the diameter of the single pixel point.

In other embodiments of the present application, the first electrode wire is a double wire, the second electrode wire is a double wire, and the width of any one of the first electrode wires of the double wire is 0.8-1.2 μm; adjacent first electrodes The spacing between the lines is 1-10 μm; the spacing between adjacent second electrode lines is 1-10 μm.

In other embodiments of the present application, the first pixel unit is a first pixel, the second pixel unit is a second pixel, the third pixel unit is a third pixel, and the fourth pixel unit is a fourth pixel The diameter of the first pixel, the diameter of the second pixel, the diameter of the third pixel, and the diameter of the fourth pixel are respectively 0.8 to 1.2 μm. The diameter of the first pixel, the diameter of the second pixel, the diameter of the third pixel, and the diameter of the fourth pixel are respectively equal to the width of any one of the double-line first electrode lines. The diameter of the first pixel, the diameter of the second pixel, the diameter of the third pixel, and the diameter of the fourth pixel are respectively equal to the width of any one of the double-line second electrode lines.

In some embodiments of the present application, the particle sizes of the first primary color electroluminescent material, the second primary color electroluminescent material, the third primary color electroluminescent material and the white light electroluminescent material are all less than or equal to 1 μm. The first primary color electroluminescent substance includes ZnS and first metal ions; the first metal ion includes Mn ion, Cu ion or K ion; the second primary color electroluminescent substance includes ZnS and second metal ion; second Metal ions include Mn ions, Cu ions, or K ions; the third primary color electroluminescent substance includes ZnS and third metal ions; the third metal ions include Mn ions, Cu ions, or K ions; wherein, Mn is doped Red light when ionized; green light when doped with Cu ion; blue light when doped with K ion. The first primary color electroluminescent material, the second primary color electroluminescent material and the third primary color electroluminescent material emit light of different colors by doping different metal ions. The field-induced white light substance is Sr ₃ Bi (PO ₄ ) ₃ doped with Dy ions. The first primary color electroluminescent substance, the second primary color electroluminescent substance and the third electroluminescent substance constitute a three primary color electroluminescent substance, which is combined with a white light electroluminescent substance as a raw material for color light emission of the display screen.

In some embodiments of the present application, the first electrode line and the second electrode line are both double lines, the material of the first electrode line and the second electrode line are both ITO conductive oxides, and three primary color electroluminescent substances are printed When using a white light electroluminescent substance, the stereoscopic display is colored. Refer to FIG. 3, which is a schematic view of the structure of the color light emission of the stereoscopic display provided by the application.

After the second conductive layer is prepared, a layer of manufacturing unit is obtained, and after repeating the above steps a to d (M-1) times, a blank of a three-dimensional display screen can be obtained.

In some embodiments, the vertical projections of all the light-emitting units of the M-layer manufacturing unit overlap. The vertical projections of all the first electrode lines of the M-layer manufacturing unit overlap, and the vertical projections of all the second electrode lines overlap.

After obtaining the blank of the stereoscopic display, in some embodiments of the present application, the blank of the stereoscopic display is sintered in an oxygen-free environment to obtain the stereoscopic display.

Some embodiments of the present application use additive manufacturing technology (that is, 3D printing) combined with a sintering process to produce a stereoscopic display screen. This method is simple, and the resulting display screen has a good stereoscopic display effect. Using 3D printing technology can get a stereoscopic display of any shape.

In this method, a conductive transparent ceramic oxide is used in combination with a sintering process, so that the three-dimensional display screen has higher light transmittance, thereby improving the clarity of the display effect.

Some embodiments of the present application solidify the display blank by sintering. In some embodiments of the present application, the sintering temperature is greater than or equal to 2000 ° C.

Other embodiments of the present application further provide a stereoscopic display screen, the stereoscopic display screen includes a superimposed M-layer manufacturing unit, where M is an integer greater than 1; wherein, the manufacturing unit includes:

SiO ₂ substrate;

A first conductive layer on the SiO ₂ substrate;

A light-emitting layer above the first conductive layer; and

A second conductive layer above the light-emitting layer.

The stereoscopic display screen provided by some embodiments of the present application only includes several layers of manufacturing units, and each manufacturing unit includes a SiO ₂ substrate, a first conductive layer, a light-emitting layer, and a second conductive layer arranged in sequence. The structure is simple; The display object can be layered corresponding to the production unit, and by lighting the display object corresponding to the corresponding light-emitting unit in each light-emitting layer, the display screen can achieve a stereoscopic display effect on the display object.

The stereoscopic display screen provided by some embodiments of the present application includes a superimposed M-layer manufacturing unit, where M is an integer greater than 1. The thickness of each layer of manufacturing unit can be selected to be less than or equal to 10 μm. 4, FIG. 5 and FIG. 6, FIG. 4 is a combined schematic diagram of a layer manufacturing unit structure of a stereoscopic display screen in some embodiments of the application; FIG. 5 is a layer manufacturing unit structure of a stereoscopic display screen in some embodiments of the application An exploded schematic diagram; FIG. 6 is a schematic structural diagram of a stereoscopic display blank provided by some embodiments of the present application.

The manufacturing unit includes a SiO ₂ substrate 401; the SiO ₂ substrate can be manufactured by 3D printing.

The manufacturing unit further includes a first conductive layer 402 on the SiO ₂ substrate. In some embodiments of the present application, the first conductive layer includes uniformly distributed first electrode lines 4021 and first filling regions 4022 other than the first electrode lines.

The manufacturing unit further includes a light emitting layer 403 on the first conductive layer. The light-emitting layer includes a light-emitting unit 4031 and a third filled region 4032 other than the light-emitting unit; the light-emitting unit is located on the projection of the first electrode line on the light-emitting layer and the second electrode line on the light-emitting layer The intersection of the projections. The light-emitting units in the light-emitting layer are distributed in the form of an array, or in the form of an array at equal intervals.

And the manufacturing unit includes a second conductive layer 404 on the light-emitting layer. The second conductive layer includes uniformly distributed second electrode lines 4041 and second filling regions 4042 other than the second electrode lines; wherein the second electrode lines are perpendicular to the first electrode lines.

In some embodiments of the present application, the first electrode wire is an ITO electrode wire; the second electrode wire is an ITO electrode wire. The first filling region, the second filling region, and the third filling region may include SiO ₂ .

In some embodiments of the present application, the first electrode line is a single line, the second electrode line is a single line, and the light emitting unit includes a single pixel unit. The light-emitting unit is located at the intersection of the projection of the first electrode line on the light-emitting layer and the projection of the second electrode line on the light-emitting layer.

The single pixel unit displays only one color of light. The individual pixel units in the light-emitting unit are distributed in an array form, or in an equally spaced array form.

Wherein, the single pixel unit may emit one of red light, green light, or blue light.

In some embodiments of the present application, the first electrode line is a double line, the second electrode line is a double line, and the light emitting unit includes a first pixel unit, a second pixel unit, a third pixel unit, and a fourth A pixel unit; the first pixel unit, the second pixel unit, the third pixel unit and the fourth pixel unit are respectively located on the projection of the first electrode line on the light-emitting layer and the second electrode line emits light on the The four corner positions of the rectangle formed by the projection of the layer.

In some embodiments of the present application, the vertical projections of all the light-emitting units of the M-layer manufacturing unit overlap. For example, the projections of all light-emitting units on the first layer of SiO ₂ substrate overlap.

In some embodiments of the present application, the vertical projections of all the first electrode lines of the M-layer manufacturing unit overlap, and the vertical projections of all the second electrode lines overlap. For example, the projections of all the first electrode lines on the first layer of SiO ₂ substrate overlap, and the projections of all the second electrode lines on the first layer of SiO ₂ substrate overlap.

In some embodiments of the present application, the shape of the stereoscopic display screen may be a cube, a cuboid, a cylinder, or a bevel.

In some embodiments of the present application, the developing principle of the stereoscopic display screen is:

Each frame of the image is quickly scanned in the software virtual stereo space. The program calculates the scan comparison calculation at a pixel pitch. The pixels on the image surface within the scanning radius of the displayed area will be activated and lit. The lighting data is output to the screen, and the screen completes the generation of the stereoscopic image. The screen light-emitting points use quantum light-emitting points, electroluminescence technology.

In addition, some embodiments of the present application further provide an electronic device that uses the stereoscopic display screen as described in the above technical solution.

In some embodiments, the electronic device is used to display a stereoscopic image through the stereoscopic display screen. The electronic device may be, for example, a virtual reality device, an augmented reality device, or a mixed reality device, or any other electronic device that can display a stereoscopic image.

Hereinafter, a method for preparing a stereoscopic display screen, a stereoscopic display screen, and an electronic device provided by some embodiments of the present application will be briefly described in conjunction with an exemplary embodiment, but they cannot be construed as limiting the protection scope of the present application.

3D printing the SiO ₂ slurry to form an SiO ₂ substrate, the particle size of SiO ₂ in the SiO ₂ slurry is less than or equal to 1 μm;

3D printing the first conductive layer, the first conductive layer includes a plurality of uniformly distributed double-wire warp ITO (90% In ₂ O ₃ , 10% SnO ₂ ; particle size less than or equal to 1 micrometer) electrode line, the first conductive Print SiO ₂ in the area except the warp ITO;

3D printing a first primary color electroluminescent substance on the first conductive layer to form the first pixel unit; the first primary color electroluminescent substance includes ZnS and Mn ions;

3D printing a second primary color electroluminescent substance on the first conductive layer to form the second pixel unit; the second primary color electroluminescent substance includes ZnS and Cu ions;

3D printing a third primary color electroluminescent substance on the first conductive layer to form the third pixel unit; the third primary color electroluminescent substance includes ZnS and K ions;

3D printing a white light electroluminescence substance on the first conductive layer to form the fourth pixel unit; the field white light substance is Sr ₃ Bi (PO ₄ ) ₃ doped with Dy ions;

The first pixel unit, the second pixel unit, the third pixel unit and the fourth pixel unit are respectively located in the projection of the first electrode line on the light emitting layer and the projection of the second electrode line on the light emitting layer Four corner positions of the formed rectangle; 3D printing in the area except the first primary color electroluminescent material, the second primary color electroluminescent material, the third primary color electroluminescent material and the white light electroluminescent material on the light-emitting layer SiO ₂ to obtain a light-emitting layer;

After the light-emitting layer is obtained, a plurality of evenly distributed double-line weft ITO (90% In ₂ O ₃ , 10% SnO ₂ ; particle size less than or equal to 1 micrometer) electrode wire is 3D printed on the light-emitting layer; 3D printing SiO ₂ outside the area to obtain a layer of manufacturing units, repeated printing to form a number of stacked manufacturing units, the vertical projections of all light-emitting units in the manufacturing units overlap, the vertical projections of all first electrode lines overlap, all The vertical projections of the second electrode lines overlap to obtain a blank 3D display screen;

The 3D display blank is sintered in an oxygen-free environment at 2000 ° C to obtain a three-dimensional display.

The display effect of the stereoscopic display screen manufactured by this exemplary embodiment is shown in FIG. 7, and FIG. 7 is the display effect of the stereoscopic display screen prepared by the embodiment of the present application. As can be seen from FIG. It shows that it has high light transmittance.

It can be known from the above embodiments that some embodiments of the present application provide a method for manufacturing a stereoscopic display screen, the stereoscopic display screen includes superimposed M-layer manufacturing units, where M is an integer greater than 1; the preparation method includes: a. Providing an SiO ₂ substrate; b, preparing a first conductive layer on the SiO ₂ substrate; c, preparing a light-emitting layer on the first conductive layer; d, preparing a second conductive layer on the light-emitting layer E. Repeat steps a to d (M-1) times to obtain the blank of the stereoscopic display; f. Sinter the blank of the stereoscopic display in an oxygen-free environment to obtain the stereoscopic display. In this application, a three-dimensional display screen can be prepared only by sequentially forming a first conductive layer, a light-emitting layer, and a second conductive layer stacked on an SiO ₂ substrate, and then combining with oxygen-free sintering, and the method is simple. The display screen manufactured by this method only includes several layers of manufacturing units, each of which includes an SiO ₂ substrate, a first conductive layer, a light-emitting layer and a second conductive layer arranged in sequence. During stereoscopic display, the display object can be made correspondingly The units are layered, and the display objects corresponding to the corresponding light-emitting units in each light-emitting layer are illuminated, so that the display screen achieves the effect of stereoscopic display on the display objects; the structure of the stereoscopic display screen is simple.

The stereoscopic display screen has high potential application value in the fields of consumer electronics such as virtual robots, electronic virtual pets, video social networking, and advertising media video peripherals.

The above is only a part of the optional embodiments of this application. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of this application, several improvements and retouches can be made. These improvements and Retouching should also be regarded as the scope of protection of this application.

The embodiments in this specification are described in a parallel or progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments may refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method.

Those of ordinary skill in the art can also understand that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two, in order to clearly explain the hardware and software. Interchangeability, in the above description, the composition and steps of each example have been described generally in terms of function. Whether these functions are executed in hardware or software depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly by hardware, a software module executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable and programmable ROM, registers, hard disks, removable disks, CD-ROMs, or all fields of technology. Any other known storage medium.

It should also be noted that in this article, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations There is any such actual relationship or order. Moreover, the terms "include", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also those not explicitly listed Or other elements that are inherent to this process, method, article, or equipment. Without more restrictions, the element defined by the sentence "include one ..." does not exclude that there are other identical elements in the process, method, article or equipment that includes the element.

Claims

A method for preparing a three-dimensional display screen, characterized in that the three-dimensional display screen includes superimposed M-layer manufacturing units, where M is an integer greater than 1; the preparation method includes:

a. Provide SiO 2 substrate;

b. A first conductive layer is prepared on the SiO 2 substrate;

c. preparing a light-emitting layer on the first conductive layer;

d. preparing a second conductive layer on the light-emitting layer;

e. Repeat steps a to d (M-1) times to obtain the blank of the stereoscopic display screen;

f. The stereoscopic display blank is sintered in an oxygen-free environment to obtain the stereoscopic display.
The preparation method according to claim 1, characterized in that

The first conductive layer includes uniformly distributed first electrode lines and first filling regions other than the first electrode lines;

The second conductive layer includes a uniformly distributed second electrode line and a second filling area except the second electrode line; wherein,

The second electrode line is perpendicular to the first electrode line.
The preparation method according to claim 2, characterized in that

The step b includes:

3D printing a transparent conductive ceramic material on the SiO 2 substrate to form the first electrode line;

3D printing SiO 2 in an area other than the first electrode line to form the first filling area;

The step d includes:

3D printing a transparent conductive ceramic material on the light emitting layer to form the second electrode line;

SiO 2 is 3D printed in an area other than the second electrode line to form the second filling area.
The preparation method according to claim 2, characterized in that

The light-emitting layer includes a light-emitting unit and a third filling area except for the light-emitting unit;

The light-emitting unit is located at the intersection of the projection of the first electrode line on the light-emitting layer and the projection of the second electrode line on the light-emitting layer.
The preparation method according to claim 4, wherein the first electrode line is a single line, the second electrode line is a single line, and the light emitting unit includes a single pixel unit.
The preparation method according to claim 5, wherein the step c comprises:

3D printing a monochromatic electroluminescent oxide on the first conductive layer to form the pixel unit;

3D printing SiO 2 in an area other than the pixel unit to form the third filling area.
The preparation method according to claim 4, wherein the first electrode line is a double wire, the second electrode line is a double wire, and the light emitting unit includes a first pixel unit, a second pixel unit, a Three pixel unit and fourth pixel unit;

The first pixel unit, the second pixel unit, the third pixel unit and the fourth pixel unit are respectively located in the projection of the first electrode line on the light emitting layer and the projection of the second electrode line on the light emitting layer The four top corner positions of the formed rectangle.
The preparation method according to claim 7, wherein the step c comprises:

3D printing a first primary color electroluminescent substance on the first conductive layer to form the first pixel unit;

3D printing a second primary color electroluminescent substance on the first conductive layer to form the second pixel unit;

3D printing a third primary color electroluminescent substance on the first conductive layer to form the third pixel unit;

3D printing a white light electroluminescent substance on the first conductive layer to form the fourth pixel unit;

SiO 2 is printed on the first conductive layer except for the light emitting unit to form the third filled area.
The preparation method according to claim 4, wherein the vertical projections of all the light-emitting units of the M-layer manufacturing unit overlap.
The preparation method according to any one of claims 2-9, wherein the vertical projections of all the first electrode lines of the M-layer manufacturing unit overlap, and the vertical projections of all the second electrode lines overlap.
A three-dimensional display screen, characterized in that the three-dimensional display screen includes superimposed M-layer manufacturing units, where M is an integer greater than 1; wherein, the manufacturing unit includes:

SiO 2 substrate;

A first conductive layer on the SiO 2 substrate;

A light-emitting layer above the first conductive layer; and

A second conductive layer above the light-emitting layer.
The stereoscopic display screen according to claim 11, wherein:

The first conductive layer includes uniformly distributed first electrode lines and first filling regions other than the first electrode lines;

The second conductive layer includes a uniformly distributed second electrode line and a second filling area except the second electrode line; wherein,

The second electrode line is perpendicular to the first electrode line.
The three-dimensional display screen according to claim 12, wherein:

The light-emitting layer includes a light-emitting unit and a third filling area except for the light-emitting unit;

The light-emitting unit is located at the intersection of the projection of the first electrode line on the light-emitting layer and the projection of the second electrode line on the light-emitting layer.
The stereoscopic display screen according to claim 13, wherein the first electrode line is a single line, the second electrode line is a single line, and the light emitting unit includes a single pixel unit.
The stereoscopic display screen according to claim 13, wherein the first electrode line is a double line, the second electrode line is a double line, and the light emitting unit includes a first pixel unit, a second pixel unit, The third pixel unit and the fourth pixel unit;

The first pixel unit, the second pixel unit, the third pixel unit and the fourth pixel unit are respectively located in the projection of the first electrode line on the light emitting layer and the projection of the second electrode line on the light emitting layer The four top corner positions of the formed rectangle.
The stereoscopic display screen according to claim 13, wherein the vertical projections of all the light-emitting units of the M-layer manufacturing unit overlap.
The stereoscopic display screen according to any one of claims 12 to 16, wherein vertical projections of all the first electrode lines of the M-layer manufacturing unit overlap, and vertical projections of all the second electrode lines overlap .
An electronic device, characterized in that the electronic device uses the stereoscopic display screen according to any one of claims 11-17.