Display screen, display screen manufacturing method, device, equipment and storage medium

Abstract

The present invention provides a display screen, a method for manufacturing a display screen, an apparatus, a device, and a storage medium. The display screen comprises: a plurality of periodically arranged pixels, each pixel including at least one sub-pixel; the sub-pixel comprises a base structure and at least one micro-nanostructure, the base structure being configured to emit imaging light; the micro-nanostructure being disposed on the backlight side of the base structure and configured to project incident light into speckle; the base structure having a refractive index less than that of the micro-nanostructure, and the absolute value of the difference between the refractive index of the micro-nanostructure and the base structure being greater than a preset threshold. The display screen, method for manufacturing a display screen, an apparatus, a device, and a storage medium provided by embodiments of the present invention achieve the dual functions of imaging and speckle projection by directly utilizing the regularly arranged sub-pixels in the display screen, thereby achieving a high screen-to-body ratio and improving the quality of the output light signal. Furthermore, the assembly of under-screen diffraction elements is eliminated, further reducing installation space.

Description

Technical Field

[0001] The present invention relates to the field of structured light generation technology, and in particular to a display screen, a method for manufacturing a display screen, an apparatus, equipment, and a storage medium. Background Art

[0002] With the increasing demand for display and full-screen touchscreen control in electronic devices, full-screen displays are becoming a key option for display and touchscreen electronic devices. While achieving full screen coverage and increasing the display area, the assembly of optical transceivers (including diffractive optical elements) for facial recognition and front-facing cameras has become an inevitable issue.

[0003] The current solution is to place the above-mentioned optical transceiver on the backlight side of the display screen, that is, below the display screen. At this time, the display screen located above displays the image normally, while the light emitted or received by the optical transceiver located below (such as structured light) will pass through the display screen; since the transmittance of the display screen itself is low, and the pixel units arranged regularly in the horizontal and vertical directions in the display screen will act as a periodic diffraction structure, a diffraction effect will be produced on the light emitted or received by the optical transceiver, which will ultimately affect the quality of the optical signal emitted or received by the optical transceiver located below the display screen; in addition, such a setting also needs to consider the assembly of the diffraction optical element under the screen, which is difficult to meet the demand for lightweight electronic devices. Summary of the Invention

[0004] To solve the above problems, an object of the embodiments of the present invention is to provide a display screen, a method, an apparatus, a device and a storage medium for manufacturing the display screen.

[0005] In a first aspect, an embodiment of the present invention further provides a display screen comprising: a plurality of periodically arranged pixels, each pixel comprising at least one sub-pixel, each sub-pixel being configured to display a color; the sub-pixel comprising: a base structure and at least one micro-nanostructure, the base structure being configured to emit imaging light having the color; the micro-nanostructure being disposed on a backlight side of the base structure, configured to project incident light into speckles and emit the speckles through the base structure; the refractive index of the base structure being less than the refractive index of the micro-nanostructure, and the absolute value of the difference between the refractive index of the micro-nanostructure and the refractive index of the base structure being greater than a preset threshold.

[0006] Optionally, the material of the micro-nano structure includes: silicon nitride, fused quartz, gallium nitride, amorphous silicon or crystalline silicon; the basic structure includes: a metal cathode layer, a hole transport layer, an organic molecule layer, an electron transport layer, a transparent anode layer and a substrate layer stacked in sequence, and the side of the metal cathode layer away from the hole transport layer is bonded to the micro-nano structure.

[0007] Optionally, the micro-nano structure is an antenna, and the material of the micro-nano structure is a precious metal; the basic structure includes: a hole transport layer, an organic molecular layer, an electron transport layer, a transparent anode layer and a substrate layer stacked in sequence, and the side of the hole transport layer away from the organic molecular layer is bonded to the micro-nano structure.

[0008] Optionally, the micro-nano structure includes: a double-arm structure, or an open ring structure; the double-arm structure includes: two straight arms connected at one end, and an angle is formed between the two straight arms.

[0009] Optionally, the pixel includes three sub-pixels displaying different colors, and each of the sub-pixels is used to display the first color, the second color or the third color.

[0010] In a second aspect, embodiments of the present invention further provide a method for manufacturing a display screen, comprising: determining a phase distribution of the display screen based on a preset speckle image and a light source function corresponding to a light source used to project the speckle; the speckle image being used to represent a schematic distribution diagram of the speckle to be projected by the display screen; establishing a sub-pixel database through simulation, the sub-pixel database comprising a plurality of sub-pixels of different structural sizes, each sub-pixel corresponding to a controlled phase; selecting, from the sub-pixel database, sub-pixels corresponding to a controlled phase that conforms to the phase distribution, determining a distribution of the sub-pixels in the display screen; and generating the display screen based on the distribution; the distribution representing the structural sizes of the sub-pixels at different positions.

[0011] Optionally, determining the phase distribution of the display screen according to a preset speckle image and a light source function corresponding to a light source for projecting the speckle includes: determining the phase distribution of the display screen by using a GS algorithm or an iterative Fourier transform algorithm.

[0012] Optionally, in the case of manufacturing a display screen in which pixels include three sub-pixels displaying different colors, each of the sub-pixels being used to display a first color, a second color, or a third color, the sub-pixel database is established through simulation, including: for the organic molecules of the sub-pixels of each structural size, respectively matching the refractive index for displaying the first color, the refractive index for displaying the second color, and the refractive index for displaying the third color; simulating the sub-pixels of each structural size to obtain three different control phases to constitute the sub-pixel database; each of the control phases is a control phase corresponding to the sub-pixels having organic molecules with different refractive indices.

[0013] Optionally, in the case of manufacturing a display screen in which pixels include three sub-pixels displaying different colors, each of the sub-pixels being used to display a first color, a second color, or a third color, establishing a sub-pixel database through simulation includes: taking an average of the refractive indices of organic molecules used to display different colors, and using the average as the refractive index of the organic molecules of each sub-pixel; and simulating to obtain control phases corresponding to multiple sub-pixels having organic molecules with the same refractive index to constitute the sub-pixel database.

[0014] Optionally, after selecting the sub-pixels corresponding to the regulated phase that conforms to the phase distribution and determining the distribution of the sub-pixels in the display screen, the method further includes: allocating organic molecules for displaying different colors to the multiple sub-pixels in each pixel.

[0015] In a third aspect, embodiments of the present invention further provide a display screen manufacturing apparatus, comprising: a determination module, an establishment module, and a generation module; the determination module is configured to determine a phase distribution of the display screen based on a preset speckle image and a light source function corresponding to a light source used to project the speckle; the speckle image is configured to represent a schematic distribution diagram of the speckle to be projected by the display screen; the establishment module is configured to establish a sub-pixel database through simulation, the sub-pixel database comprising a plurality of sub-pixels of different structural sizes, each sub-pixel corresponding to a control phase; the generation module is configured to select, from the sub-pixel database, sub-pixels corresponding to a control phase that conforms to the phase distribution, determine a distribution of sub-pixels in the display screen, and generate the display screen based on the distribution; the distribution represents the structural sizes of sub-pixels at different positions.

[0016] In a fourth aspect, an embodiment of the present invention provides an electronic device, comprising a processor and a memory, wherein the memory stores a computer program, and is characterized in that the processor executes the computer program stored in the memory, and when the computer program is executed by the processor, the method for manufacturing a display screen described in the second aspect above is implemented.

[0017] In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method for manufacturing a display screen as described in the second aspect above.

[0018] In a sixth aspect, the present application also provides a computer program product, including a computer program. When the computer program is executed, it can implement the method for manufacturing a display screen described in the second aspect or any possible design method of the second aspect.

[0019] In the solution provided in the first aspect of the embodiment of the present invention, by improving the existing pixel unit device (i.e., sub-pixel), on the basis of the basic structure with a low refractive index in its original structure, a micro-nano structure with a higher refractive index is used to realize the regulation of the incident light, so that the sub-pixel can not only have the original function of emitting imaging light, but also have the additional function of projecting speckle, that is, the display screen itself is a diffraction element; the embodiment of the present invention can not only achieve a higher screen-to-body ratio, but also does not need to consider the interference caused by diffraction caused by the display screen itself like traditional display screens, thereby enabling the display screen to improve the quality of the output light signal; in addition, the embodiment of the present invention can directly use the regularly arranged sub-pixels in the display screen to achieve the above two functions, without considering the assembly of the diffraction element under the screen, which can further reduce the installation space and meet the demand for lightweight and thin electronic devices.

[0020] In the solution provided in the second aspect of the embodiment of the present invention, the modulation phases corresponding to sub-pixels at different locations on the surface of the display screen to be manufactured can be directly calculated using an algorithm (such as the GS algorithm) based solely on the light source function of the selected light source and a preset speckle pattern, thereby obtaining the phase distribution of the display screen. Furthermore, this method can construct a sub-pixel database with a mapping relationship between sub-pixels of different structural sizes and their corresponding modulation phases, and directly find the corresponding sub-pixel data in the sub-pixel database to ultimately generate the display screen. This method can more concisely and clearly determine the phase distribution of the display screen, allowing for the rapid and accurate generation of a display screen capable of projecting incident light into speckle and displaying images.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram showing the arrangement of a display screen provided by an embodiment of the present invention is shown;

[0024] Figure 2 A schematic diagram of the structure of a sub-pixel in a display screen provided by an embodiment of the present invention is shown;

[0025] Figure 3 A schematic diagram showing the arrangement of another display screen provided by an embodiment of the present invention is shown;

[0026] Figure 4 A schematic diagram showing an arrangement of a display screen provided by an embodiment of the present invention, in which a sub-pixel region provides dual functions and a conventional pixel element region provides a single function;

[0027] Figure 5 A schematic diagram showing a functional use effect of a display screen provided by an embodiment of the present invention is shown;

[0028] Figure 6 A schematic diagram of a specific structure of a sub-pixel provided by an embodiment of the present invention is shown;

[0029] Figure 7 A schematic diagram showing the phase distribution of silicon nanorods corresponding to changes in their diameter d in a display screen provided by an embodiment of the present invention is shown;

[0030] Figure 8 A schematic diagram showing the relationship between the diameter D of a sub-pixel and the modulation phase in a display screen provided by an embodiment of the present invention is shown;

[0031] Figure 9 Another specific structural diagram of a sub-pixel provided by an embodiment of the present invention is shown;

[0032] Figure 10 A schematic diagram of an antenna with a dual-arm structure in a display screen provided by an embodiment of the present invention is shown;

[0033] Figure 11 A schematic diagram of an antenna with an open ring structure in a display screen provided by an embodiment of the present invention is shown;

[0034] Figure 12 A flow chart showing a method for manufacturing a display screen provided by an embodiment of the present invention is shown;

[0035] Figure 13 A schematic structural diagram of a display screen manufacturing device provided by an embodiment of the present invention is shown;

[0036] Figure 14 A schematic structural diagram of an electronic device for executing a method for manufacturing a display screen provided by an embodiment of the present invention is shown.

[0037] icon:

[0038] 1-sub-pixel, 11-basic structure, 12-micro-nanostructure, 111-metal cathode layer, 112-hole transport layer, 113-organic molecular layer, 114-electron transport layer, 115-transparent anode layer, 116-substrate layer, 100-pixel. DETAILED DESCRIPTION

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0041] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0042] The embodiment of the present invention provides a display screen, see Figure 1 As shown, the display screen includes: a plurality of periodically arranged pixels 100, each pixel 100 includes at least one sub-pixel 1, and the sub-pixel 1 is used to display color; Figure 1 The pixel 100 and the sub-pixel 1 are distinguished by dashed lines of different thicknesses, for example, the pixel 100 is divided by a thick dashed line, and the sub-pixel 1 is divided by a thin dashed line, and Figure 1 The image sensor 100 includes 9 pixels 100, and each pixel 100 includes 4 sub-pixels 1.

[0043] The sub-pixel 1 includes: a basic structure 11 and at least one micro-nano structure 12, see Figure 2 As shown, Figure 2 The figure shows a case where the sub-pixel 1 includes a micro-nano structure 12; specifically, the basic structure 11 is used to emit imaging light with color; the micro-nano structure 12 is arranged on the backlight side of the basic structure 11, Figure 2Taking the lower side of the base structure 11 as its backlight side as an example, the micro-nanostructure 12 is used to project the incident light into speckles and emit the speckles through the base structure 11; the refractive index of the base structure 11 is smaller than the refractive index of the micro-nanostructure 12, and the absolute value of the difference between the refractive index of the micro-nanostructure 12 and the refractive index of the base structure 11 is greater than a preset threshold.

[0044] In the embodiment of the present invention, each pixel 100 may include one sub-pixel 1, or may include multiple sub-pixels 1, such as Figure 1 As shown, each pixel 100 includes 4 sub-pixels 1, wherein the embodiment of the present invention does not specifically limit the shape of the sub-pixels 1. The shape of the sub-pixels 1 only needs to be able to be arranged to form a display screen. For example, the sub-pixels 1 can be a densely packed graphic, and at least one micro-nano structure 12 is provided at the center of the densely packed graphic. The densely packed graphic refers to a graphic that can enable multiple sub-pixels 1 to be arranged in a densely packed array. Common densely packed graphics include squares or regular hexagons, and a micro-nano structure 12 is provided at the center of each sub-pixel 1. Since multiple sub-pixels 1 can form a densely packed effect, there is no gap on the surface of the pixel 100 composed of sub-pixels 1. As shown Figure 1 As shown, the sub-pixel 1 can be a square, and multiple sub-pixels 1 can be arranged in a square array; or Figure 3 As shown, the sub-pixel 1 can be a regular hexagon, and multiple sub-pixels 1 can be arranged in a regular hexagonal array. Compared to arrays with other densely packed patterns, the array arranged in a regular hexagonal pattern has a more compact density pattern, a larger duty cycle of the sub-pixels 1, and more efficient use of space. Furthermore, a more compact arrangement can increase the controllable range of the effective refractive index. Those skilled in the art will recognize that the sub-pixels 1 included in the pixel 100 can also include other array arrangements, and all such variations are encompassed within the scope of this application.

[0045] The color displayed by the sub-pixel 1 can be a single color, for example, black or white (it can also include gray). In other words, the display screen can be a black and white display screen (this situation is not shown in the drawings of the specification); or, the color displayed by the sub-pixel 1 can also be a variety of different colors, that is, the display screen can be a color display screen; optionally, the pixel 100 includes three sub-pixels 1 that display different colors, and each sub-pixel 1 is used to display the first color, the second color, and the third color respectively. For example, the first color, the second color, and the third color can correspond to red (R), green (G), and blue (B), respectively. The embodiment of the present invention does not exclude the existence of sub-pixels 1 using the other three colors, and only R, G, and B are used as examples for detailed description. The number of sub-pixels 1 of each color can be multiple, such as Figure 1As shown, a pixel 100 may include four sub-pixels 1, two of the four sub-pixels 1 are the same seed pixels 1, that is, these two sub-pixels 1 can display the same color (green).

[0046] In the embodiment of the present invention, each sub-pixel 1 has a basic structure 11 and a micro-nano structure 12. The two sides of the basic structure 11 are respectively a light emitting side (such as Figure 2 The upper side of the base structure 11) and the backlight side (such as Figure 2 The base structure 11 is located on the lower side of the base structure 11. The base structure 11 can emit light beams having colors (e.g., one or more colors) toward the light-emitting side, and these light beams emitted by the base structure 11 itself can generate a display image. Therefore, in this embodiment of the present invention, the light beams having colors emitted by the base structure 11 toward the light-emitting side can be referred to as imaging light. The backlight side of the base structure 11 and the micro-nanostructure 12 are arranged in contact with each other, and the two parts together constitute a sub-pixel 1. The sub-pixel 1 is used to receive incident light for projecting speckle. Specifically, the incident light enters the sub-pixel 1 from a surface of the micro-nanostructure 12 located away from the base structure 11.

[0047] Since the refractive index of the micro-nanostructure 12 in the embodiment of the present invention is different from that of the basic structure 11, specifically, the refractive index of the micro-nanostructure 12 is greater than the refractive index of the basic structure 11, and the absolute value of the difference between the two is greater than a preset threshold (for example, the preset threshold may be a value greater than 0.5, such as 1, 1.5, 2, or 2.5, etc.), that is, the difference between the refractive index of the micro-nanostructure 12 and the refractive index of the basic structure 11 is large enough to enable the light incident on the sub-pixel 1 to be efficiently modulated by the micro-nanostructure 12; for example, if The preset threshold is 1, the refractive index of the basic structure 11 in the sub-pixel 1 is 1.75, and the refractive index of the micro-nanostructure 12 may be 3.64. Then, the absolute value of the difference between the two is equal to 1.89 (greater than the preset threshold 1). Therefore, the difference between the refractive index of the basic structure 11 and the refractive index of the micro-nanostructure 12 in the sub-pixel 1 is large enough to cause the light incident on the sub-pixel 1 to be modulated by the micro-nanostructure 12, that is, modulated into speckle. The speckle will be incident from the backlight side of the basic structure 11 and ultimately emitted from the light-emitting side of the basic structure 11. The light source providing the incident light may be a single laser light source or a patterned light source array. For example, the patterned light source array may be a VCSEL (Vertical-Cavity Surface-Emitting Laser) array, which is not limited in this embodiment of the present invention.

[0048] It should be noted that the sub-pixel 1 provided in the embodiment of the present invention can be combined with a conventional pixel element used only for imaging to form the same display screen. For example, the area with the sub-pixel 1 can be located at any position of the display screen, such as the top of the display screen; Figure 4 As shown, the area with sub-pixel 1 in the display screen is a dual-function area ( Figure 4 The area with conventional pixel elements is a single-function area with only imaging function ( Figure 4 In the actual manufacturing process, the display screen is manufactured together with the other areas except the upper left corner (shown in the figure). Not only is the manufacturing cost lower, but the process difficulty is also less.

[0049] The display screen provided by the embodiment of the present invention improves the existing pixel unit device (i.e., sub-pixel 1) by utilizing the micro-nano structure 12 with a higher refractive index on the basis of the basic structure 11 with a lower refractive index in the original structure to achieve regulation of the incident light, so that the sub-pixel 1 can not only have the original function of emitting imaging light, but also have the additional function of projecting speckle, that is, the display screen itself is a diffraction element (e.g., Figure 5 As shown, Figure 5 The figure shows the effect of using the display screen. Figure 5 (where X represents the area to be measured, P represents the display screen, and L represents the light source); the embodiment of the present invention can not only achieve a higher screen-to-body ratio, but also does not need to consider the interference caused by diffraction caused by the display screen itself as in traditional displays, thereby enabling the display screen to improve the quality of the output light signal; in addition, the embodiment of the present invention can directly utilize the regularly arranged sub-pixels 1 in the display screen to achieve the above two functions, without the need for under-screen diffraction elements, which can further reduce the installation space and meet the demand for lightweight and thin electronic devices.

[0050] Optionally, the sub-pixel 1 further includes: a filling material; the filling material is filled around the micro-nano structure 12; the filling material is a transparent or translucent material in the working band, and the absolute value of the difference between the refractive index of the filling material and the refractive index of the micro-nano structure 12 is greater than or equal to 0.5.

[0051] In embodiments of the present invention, when the diameter of the micro-nanostructure 12 is smaller than the diameter of the base structure 11, a filling material may be disposed around the micro-nanostructure 12. Specifically, the filling material is disposed to fill the remaining space within the period, excluding the micro-nanostructure 12. The period of the micro-nanostructure 12 corresponds to the size of the sub-pixel 1. For example, when the sub-pixel 1 includes multiple micro-nanostructures 12, the filling material may be disposed to fill the gaps formed by the multiple micro-nanostructures 12. It should be noted that within the operating wavelength band of a light source capable of projecting speckle, the sub-pixel 1 in each pixel 100 of the display screen provided by the embodiments of the present invention has a certain transmittance for light within that operating wavelength band, for example, a transmittance greater than 40%. Therefore, the filling material surrounding the micro-nanostructure 12 also has a certain transmittance within the operating wavelength band of the incident light, for example, a transmittance greater than 40%. The filling material can protect the micron- or nanometer-scale micro-nanostructure 12. Furthermore, the absolute value of the difference between the refractive index of the filling material and the refractive index of the micro-nanostructure 12 is greater than or equal to 0.5, to prevent the filling material from affecting the modulation effect of the incident light.

[0052] Optionally, the material of the micro-nano structure 12 includes: silicon nitride, fused quartz, gallium nitride, amorphous silicon or crystalline silicon, wherein the amorphous silicon may be hydrogenated amorphous silicon; see Figure 6 As shown, the basic structure 11 includes: a metal cathode layer 111, a hole transport layer 112, an organic molecule layer 113, an electron transport layer 114, a transparent anode layer 115 and a substrate layer 116 stacked in sequence, wherein the material of the transparent anode layer 115 can be ITO (Indium Tin Oxides, indium tin oxide), and the material of the substrate layer 116 can be glass; the side of the metal cathode layer 111 away from the hole transport layer 112 is bonded to the micro-nano structure 12.

[0053] In the embodiment of the present invention, a conventional OLED (Organic Light-Emitting Diode) pixel unit can be selected for improvement. The body of the conventional OLED pixel unit is used as the basic structure 11 of the embodiment of the present invention. A micro-nanostructure 12 is additionally laminated on the backlight side of the basic structure 11 to obtain a sub-pixel 1 capable of imaging and projecting speckle.

[0054] like Figure 6 As shown, Figure 6 The lower side of the basic structure 11 is shown as its backlight side, and the upper side of the basic structure 11 is shown as its light-emitting side. Figure 6In the basic structure 11 shown (such as the body of a conventional OLED pixel unit), the above-mentioned metal cathode layer 111, hole transport layer 112, organic molecule layer 113, electron transport layer 114, transparent anode layer 115 and substrate layer 116 are arranged in sequence from bottom to top. Specifically, the process of the basic structure 11 emitting imaging light is as follows: under the drive of an external voltage, electrons from the metal cathode layer 111 and holes from the transparent anode layer 115 will move to the electron transport layer 114 and the hole transport layer 112 of the basic structure 11 accordingly, and the electron transport layer 114 and the hole transport layer 112 will respectively move the electrons and holes to the organic molecular layer 113 of the basic structure 11 (the organic molecular layer 113 can also be called the light-emitting organic molecular layer) and accumulate; when the number of electrons and holes in the organic molecular layer 113 reaches a certain level, the electrons and holes will recombine and generate excitons in the organic molecular layer 113, so that the organic molecules in the organic molecular layer 113 are activated, and then the electrons in the outermost layer of the organic molecules transition from the ground state to the excited state, but because the electrons in the excited state are extremely unstable, they will transition to the ground state. During the transition, energy will be released in the form of light, so that the basic structure 11 can emit imaging light to the light-emitting side.

[0055] When the wavelength of the incident light is 940nm (such as Figure 5 The wavelength of light emitted by the light source L shown is in the case of a common VCSEL emission wavelength), and the phase distribution of a silicon nanorod with a height of 590 nm, a period of 525 nm, a refractive index of 3.9 and no surrounding filling medium 13 along with its diameter d can be seen in Figure 7 As shown by Figure 7 It can be seen that the phase of the silicon nanorods covers 0 to 2π and has efficient phase control capabilities at the operating wavelength (940nm). Based on this, the silicon nanorods can be used as the micro-nanostructure 12 in the sub-pixel 1 and combined with the base structure 11 to obtain a sub-pixel 1 capable of projecting speckle. For example, by changing the height or diameter of the micro-nanostructure 12 attached to the lower surface of the metal cathode layer 111, efficient control of the phase of the incident light can be achieved.

[0056] See also Figure 8 As shown, Figure 8 The relationship between the diameter D of the sub-pixel 1 and the modulation phase is shown in FIG. It should be noted that, in the embodiment of the present invention, the diameter of the micro-nano structure 12 can be made the same as the diameter of the metal cathode layer 111, the hole transport layer 112, the organic molecular layer 113, the electron transport layer 114 and the transparent anode layer 115 in the sub-pixel 1, and the diameter of the micro-nano structure 12 can be used as the diameter of the sub-pixel 1. By setting the operating wavelength of the sub-pixel 1 to 940nm and the period to 525nm, the simulation can obtain Figure 8The phase distribution shown in FIG. 1 is shown in FIG. 2 ; wherein the height of the micro-nanostructure 12 is 590 nm and the refractive index is 3.9; the material of the metal cathode layer 111 in the base structure 11 is gold (the relative dielectric constant of gold at 940 nm is -36.22+2.36i), and the thickness of the metal cathode layer 111 is 100 nm; and in the simulation process, the hole transport layer 112, the organic molecule layer 113, the electron transport layer 114 and the transparent anode layer 115 can be regarded as an integral structural layer, and the equivalent refractive index of the integral structural layer is 2.2 and the thickness is 200 nm; Figure 8 It can be seen that the modulation phase of the sub-pixel 1 can cover 0 to 2π, which can meet the requirements of phase control. Therefore, the sub-pixel 1 can project speckles in addition to having the function of emitting imaging light.

[0057] The embodiment of the present invention uses a traditional OLED pixel unit as the basic structure 11 of the sub-pixel 1, and additionally provides a micro-nano structure 12 on the basis of the traditional OLED pixel unit. The large refractive index difference between the basic structure 11 and the micro-nano structure 12 can achieve efficient modulation of light. The embodiment of the present invention only uses the existing OLED pixel unit to modify to obtain a sub-pixel 1 that can achieve dual functions, thereby forming a dual-function display screen with a simple structure and low cost.

[0058] Optionally, the micro-nano structure 12 is an antenna, and the material of the micro-nano structure 12 is a precious metal; see Figure 9 As shown, the basic structure 11 includes: a hole transport layer 112, an organic molecular layer 113, an electron transport layer 114, a transparent anode layer 115 and a substrate layer 116 stacked in sequence, and the side of the hole transport layer 112 away from the organic molecular layer 113 is bonded to the micro-nano structure 12.

[0059] See also Figure 9 As shown, Figure 9 1 shows a schematic structural diagram of another sub-pixel 1; the embodiment of the present invention can also directly modify the metal cathode layer in the conventional OLED pixel unit, for example, the hole transport layer 112, the organic molecule layer 113, the electron transport layer 114, the transparent anode layer 115 and the substrate layer 116 of the conventional OLED pixel unit are used as the basic structure 11 of the embodiment of the present invention, and the backlight side of the basic structure 11 (such as Figure 9A micro-nanostructure 12 is provided on the lower side of the hole transport layer 112 shown in FIG. The micro-nanostructure 12 may be a precious metal antenna, for example, an antenna made of gold or silver. Furthermore, to support the base structure 11 above the micro-nanostructure 12, the empty space outside the precious metal antenna may be filled with a filling medium 13, so that the micro-nanostructure 12 can serve as both a conductive electrode for applying a driving voltage (e.g., as a metal cathode layer) and a phase modulation structure that responds to light, thereby enabling the sub-pixel 1 of the embodiment of the present invention to have the dual functions of imaging and projecting speckle. It should be noted that since the antenna is a polarization-dependent structure, when an antenna is used as the micro-nanostructure 12, the phase modulation of light by the sub-pixel 1 is polarization-dependent. The sub-pixel 1 responds to light emitted by a polarized light source. Therefore, when using such a sub-pixel 1, a light source capable of emitting polarized light may be used, or a polarizer may be added to the light-emitting side of the emitting light source to meet usage requirements. For example, the polarized light may be linearly polarized light, and the added polarizer may be a linear polarizer.

[0060] Alternatively, as Figure 10 or Figure 11 As shown, the micro-nano structure 12 includes: a double-arm structure, or an open ring structure; wherein the double-arm structure includes: two straight arms connected at one end, and an angle is formed between the two straight arms.

[0061] like Figure 10 As shown, in the case where the micro-nano structure 12 is a dual-arm antenna, the angle between the two arms can be changed, thereby changing the phase regulated by the micro-nano structure 12. Figure 10 The following table shows the regulation in sequence within a cycle. Schematic diagram of the structure of 8 micro-nano structures 12, Figure 10 The material of the double-arm antenna shown is gold, the operating wavelength is 9μm, the thickness is 50nm, the arm length is 20nm, and the angles between the two arms are 60°, 90°, 120°, and 180° from left to right, and the last four antennas correspond to the first four antennas rotated 90° clockwise. Alternatively, the micro-nano structure 12 can also be as follows Figure 11 The open ring structure shown, the open ring structure antenna made of precious metal material is also a micro-nano structure 12 that can adjust the phase of linearly polarized light, which will not be described in detail here.

[0062] In the case where any of the above display screens needs to be manufactured, the embodiment of the present invention can use simulation software to simulate the display screen to be manufactured in advance, and finally generate the display screen based on the simulation results. Figure 12 A flow chart showing a method for manufacturing a display screen is shown. Figure 12 As shown, the method includes the following steps 101-103.

[0063] Step 101: determining the phase distribution of the display screen according to a preset speckle image and a light source function corresponding to a light source for projecting the speckle; the speckle image is used to represent a distribution diagram of the speckle to be projected by the display screen.

[0064] First, a speckle image can be preset according to actual needs. Specifically, the speckle image can include points for indicating speckle positions. The number and arrangement of the points included in the speckle image can clearly indicate the specific distribution (or effect) of the speckle to be projected by the display screen. For example, the speckle image can be a 3×3 image, i.e., the speckle image includes 9 points arranged in a 3×3 array. Furthermore, based on the actual light source to be selected (i.e., the light source that projects light for generating speckle onto the display screen to be manufactured), the phase distribution of the display screen to be manufactured can be calculated by an algorithm using a light source function corresponding to the light source and the preset speckle image. Optionally, step 101 can include determining the phase distribution of the display screen using a Gerchberg-Saxton algorithm (GS algorithm) or an iterative Fourier transform algorithm, which will not be described in detail here.

[0065] Step 102: Establish a sub-pixel database through simulation, where the sub-pixel database includes multiple sub-pixels of different structural sizes, and each sub-pixel corresponds to a control phase.

[0066] In an embodiment of the present invention, a sub-pixel database composed of sub-pixels of different structural sizes can be obtained through simulation, wherein each sub-pixel included in the sub-pixel database corresponds one-to-one to a certain control phase, and multiple sub-pixels can correspond to multiple different control phases, so that the control phases of the sub-pixels included in the sub-pixel database can cover 0 to 2π.

[0067] It should be noted that, generally, the control phases corresponding to different structural sizes are different, that is, the control phases corresponding to sub-pixels of each structural size may also be different from each other, and each sub-pixel can produce different modulation effects on the same incident light; but since the period of the control phase is 2π, some sub-pixels with different structural sizes can also correspond to the same control phase, that is, these sub-pixels of different structural sizes can produce the same phase modulation effect on the same incident light, and the embodiments of the present invention do not limit this.

[0068] Specifically, by determining parameter requirements such as operating wavelength, material parameters, and transmittance, parametric scanning can be performed in the simulation software to obtain the correspondence between sub-pixels of different structural sizes and the numerical values ​​of the controlled phase, and obtain a sub-pixel database of discrete phase points.

[0069] Step 103: Select the sub-pixel corresponding to the controlled phase that meets the phase distribution in the sub-pixel database, determine the distribution of the sub-pixels in the display screen, and generate the display screen based on the distribution; the distribution represents the structural size of the sub-pixels at different positions.

[0070] After obtaining the phase distribution of the display screen to be manufactured according to the above step 101 and obtaining the sub-pixel database in the above step 102, the embodiment of the present invention needs to determine the sub-pixels set at various positions on the surface of the display screen to be manufactured, that is, to determine the distribution of the sub-pixels in the display screen; in other words, the distribution of the sub-pixels in the display screen is the structural size of the sub-pixels corresponding to each discrete phase point on its surface, and is also the simulation result of the display screen; therefore, the embodiment of the present invention can find the sub-pixel data corresponding to the data of the controlled phase at each position in the phase distribution from the sub-pixel database, arrange them according to the corresponding position of each sub-pixel, obtain the simulation result (the distribution of the sub-pixels in the display screen), and generate the display screen to be manufactured according to the simulation result.

[0071] The display screen design method provided by the embodiments of the present invention, based solely on the light source function of the selected light source and a preset speckle pattern, can directly calculate the modulation phases corresponding to sub-pixels at different locations on the surface of the desired display screen using an algorithm (such as the GS algorithm), thereby obtaining the display screen's phase distribution. Furthermore, this method can construct a sub-pixel database with a mapping relationship between sub-pixels of different structural sizes and their corresponding modulation phases, and directly find the corresponding sub-pixel data in the sub-pixel database to ultimately generate the display screen. This method can more concisely and clearly determine the display screen's phase distribution, allowing for the rapid and precise creation of a display screen capable of projecting incident light into speckle and displaying images.

[0072] Optionally, when manufacturing a display screen in which pixels include three sub-pixels displaying different colors, each sub-pixel is used to display a first color, a second color, or a third color, establishing a sub-pixel database through simulation may include the following steps A1-A2.

[0073] Step A1: For the organic molecules of the sub-pixel of each structural size, respectively matching the refractive index for displaying the first color, the refractive index for displaying the second color, and the refractive index for displaying the third color.

[0074] In an embodiment of the present invention, organic molecules with different color development can cause the basic structure 11 in the sub-pixel to emit imaging light of different colors, and the refractive indices of different organic molecules are different to a certain extent. If the display screen to be manufactured is to be a color display screen, for example, the display screen can display three different colors, and these three different colors can be a first color, a second color, and a third color, then when establishing a sub-pixel database through simulation, it is necessary to consider the refractive indices of the organic molecules corresponding to these three colors respectively. The following will take a sub-pixel of a certain structural size as an example to specifically explain how to construct a sub-pixel database. Among them, for the organic molecules contained in the sub-pixel of this structural size (such as contained in the basic structure), the refractive index capable of displaying the first color can be assigned to the organic molecules of the sub-pixel, the refractive index capable of displaying the second color can be assigned to the organic molecules of the sub-pixel, and the refractive index capable of displaying the third color can be assigned to the organic molecules of the sub-pixel, so that the sub-pixel of this structural size can be subsequently simulated with the refractive indices corresponding to the three different colors.

[0075] Step A2: Three different control phases are simulated for each sub-pixel of each structural size to form a sub-pixel database; each control phase is a control phase corresponding to a sub-pixel having organic molecules with different refractive indices.

[0076] By simulating sub-pixels of this structural size based on these three different color-rendering refractive indices, we can obtain sub-pixels of the same structural size but corresponding to three different control phases. These sub-pixels with these three different control phases can modulate incident light into speckle, but can project three different colors of imaging light, such as a first color, a second color, and a third color, onto the light-emitting side of the sub-pixel. It can be understood that sub-pixels of the same structural size corresponding to the three different control phases can produce imaging light of different colors because each control phase is simulated based on sub-pixels of organic molecules that are each endowed with a different refractive index. In embodiments of the present invention, the same method can be used to traverse sub-pixels of each structural size, thereby obtaining multiple sub-pixels that can constitute a sub-pixel database. Sub-pixels of each structural size correspond to three different control phases, each of which enables the sub-pixel to project imaging light of a corresponding color.

[0077] In the process of constructing a sub-pixel database, an embodiment of the present invention directly takes the color of the imaging light to be projected into consideration. For example, during the simulation process, the refractive index of organic molecules displaying different colors is substituted into the calculation, so that sub-pixels of each structural size in the sub-pixel database have three different modulation phases, and each modulation phase corresponds to a different color. This method enables the direct selection of sub-pixels that meet imaging requirements (such as color display requirements) when subsequently selecting sub-pixels with corresponding modulation phases from the sub-pixel database. In addition, the entire simulation process is simple, the sub-pixels in the generated sub-pixel database are relatively rich, and the calculated modulation phases of the sub-pixels are more accurate.

[0078] Optionally, when manufacturing a display screen in which pixels include three sub-pixels displaying different colors, each sub-pixel is used to display a first color, a second color, or a third color, establishing a sub-pixel database through simulation may include the following steps B1-B2.

[0079] Step B1: averaging the refractive indices of organic molecules used to display different colors, and setting the average value as the refractive index of the organic molecules of each sub-pixel.

[0080] In an embodiment of the present invention, although there are certain differences in the refractive indices of organic molecules with different color displays, the differences are small. In order to simplify the simulation process, reduce computing power, and quickly build a sub-pixel database, the embodiment of the present invention does not need to consider the colors that the sub-pixels need to display during simulation. For example, the colors that the sub-pixels need to display are regarded as the same color. The specific operation is: unifying the refractive indices of organic molecules used to display different colors, such as taking the average refractive indices of organic molecules corresponding to multiple colors, and letting the average of these refractive indices be the refractive index corresponding to the organic molecules of each sub-pixel (different structural sizes), and performing simulation.

[0081] Step B2: Simulate and obtain the control phases corresponding to a plurality of sub-pixels having organic molecules with the same refractive index to form a sub-pixel database.

[0082] Based on simulation software, the control phases of multiple sub-pixels that can display the same color but have different structural sizes can be obtained. The control phases corresponding to these sub-pixels are simulated based on sub-pixels of organic molecules with the same refractive index. In an embodiment of the present invention, these sub-pixels of different structural sizes and their corresponding control phases constitute a sub-pixel database. The organic molecules of all sub-pixels in the sub-pixel database are used to display the same color.

[0083] Optionally, after selecting the sub-pixels corresponding to the regulated phase that conforms to the phase distribution and determining the distribution of the sub-pixels in the display screen, the method further includes: allocating organic molecules for displaying different colors to the multiple sub-pixels in each pixel.

[0084] Since the sub-pixel database obtained by the simulation according to the above steps B1-B2 does not take into account the refractive index of organic molecules that can display different colors, after determining the distribution of sub-pixels in the display screen, or before generating the display screen based on the distribution, it is necessary to assign display colors, such as the first color, the second color, or the third color, to the sub-pixels at different positions in the display screen. The specific method of assigning colors is: assign three different colors to the multiple sub-pixels required to constitute a pixel, such as Figure 1 As shown, if a pixel includes four sub-pixels, organic molecules for displaying the first color, the second color, and the third color can be allocated to the four sub-pixels respectively, wherein the organic molecules of the same color can be allocated to two sub-pixels, so that Figure 1 The pixels in can also emit three different colors of imaging light; or Figure 3 As shown, if a pixel includes three sub-pixels (three adjacent sub-pixels), organic molecules for displaying the first color, the second color, and the third color can be allocated to the three sub-pixels respectively, so that Figure 3 The pixels in the image sensor can emit three different colors of imaging light, and the three sub-pixels are spatially located at the vertices of an equilateral triangle, and adjacent pixels are arranged in an equilateral triangle with the vertices staggered left and right. It should be noted that the arrangement of multiple sub-pixels in the same pixel can be random, or in order to improve the uniformity of color rendering, the following can be selected: Figure 3 The arrangement shown is a diamond arrangement in which sub-pixels of the same color are not adjacent to each other, and the embodiment of the present invention is not limited to this.

[0085] The above describes in detail the method for manufacturing a display screen provided by an embodiment of the present invention. This method can also be implemented by a corresponding device. The following describes in detail the device for manufacturing a display screen provided by an embodiment of the present invention.

[0086] Figure 13 FIG. 1 shows a schematic structural diagram of a display screen manufacturing device provided by an embodiment of the present invention. Figure 13 As shown, the manufacturing device of the display screen includes: a processor including a determination module 31 , a creation module 32 and a generation module 33 .

[0087] The determination module 31 is used to determine the phase distribution of the display screen according to a preset speckle image and a light source function corresponding to a light source for projecting the speckle; the speckle image is used to represent a distribution diagram of the speckle to be projected by the display screen.

[0088] The establishing module 32 is used to establish a sub-pixel database through simulation, wherein the sub-pixel database includes a plurality of sub-pixels of different structural sizes, and each sub-pixel corresponds to a control phase.

[0089] The generation module 33 is used to select the sub-pixels corresponding to the control phase that conforms to the phase distribution in the sub-pixel database, determine the distribution of the sub-pixels in the display screen, and generate the display screen based on the distribution; the distribution represents the structural size of the sub-pixels at different positions.

[0090] Optionally, the determining module 31 includes: using a GS algorithm or an iterative Fourier transform algorithm to determine the phase distribution of the display screen.

[0091] Optionally, in the case of manufacturing a display screen in which pixels include three sub-pixels displaying different colors, each of the sub-pixels is used to display a first color, a second color, or a third color, the establishing module 32 includes: a refractive index allocation unit and a first simulation unit.

[0092] The refractive index allocating unit is used to respectively match the refractive index for displaying the first color, the refractive index for displaying the second color, and the refractive index for displaying the third color for the organic molecules of the sub-pixels of each structural size.

[0093] The first simulation unit is used to simulate sub-pixels of each structural size to obtain three different control phases to form the sub-pixel database; each of the control phases is a control phase corresponding to sub-pixels with organic molecules having different refractive indices.

[0094] Optionally, in the case of manufacturing a display screen in which pixels include three sub-pixels displaying different colors, each of the sub-pixels is used to display a first color, a second color, or a third color, the establishing module 32 includes: an average refractive index unit and a second simulation unit.

[0095] The average refractive index unit is used to average the refractive indices of the organic molecules used to display different colors, and use the average value as the refractive index of the organic molecules of each sub-pixel.

[0096] The second simulation unit is used to simulate and obtain the control phases corresponding to a plurality of sub-pixels having organic molecules with the same refractive index, so as to form the sub-pixel database.

[0097] Optionally, after selecting the sub-pixels corresponding to the regulated phase that conforms to the phase distribution and determining the distribution of the sub-pixels in the display screen, the manufacturing device of the display screen further includes: allocating organic molecules for displaying different colors to the multiple sub-pixels in each pixel.

[0098] The device provided by the embodiments of the present invention, based solely on the light source function of the selected light source and a preset speckle pattern, can directly calculate the modulation phases corresponding to sub-pixels at different locations on the surface of the desired display screen using an algorithm (such as the GS algorithm), thereby obtaining the phase distribution of the display screen. Furthermore, the device can construct a sub-pixel database with a mapping relationship between sub-pixels of different structural sizes and their corresponding modulation phases, and directly find the corresponding sub-pixel data in the sub-pixel database to ultimately generate the display screen. Using this device, the phase distribution of the display screen can be determined more concisely and clearly, allowing for the rapid and precise creation of a display screen capable of projecting incident light into speckle and displaying images.

[0099] It should be noted that the display manufacturing device provided in the above embodiment is merely an example of the division of the above functional modules when implementing the corresponding functions. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the display manufacturing device provided in the above embodiment and the display manufacturing method embodiment are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0100] According to one aspect of the present application, an embodiment of the present invention further provides a computer program product, comprising a computer program containing program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication component. When the computer program is executed by a processor, the method for manufacturing a display screen provided in the embodiment of the present application is performed.

[0101] In addition, an embodiment of the present invention also provides an electronic device, which includes a processor and a memory, wherein the memory stores a computer program, and the processor is capable of executing the computer program stored in the memory. When the computer program is executed by the processor, the manufacturing method of the display screen provided in any of the above embodiments can be implemented.

[0102] For example, Figure 14 An electronic device provided by an embodiment of the present invention is shown. The device includes a bus 1110 , a processor 1120 , a transceiver 1130 , a bus interface 1140 , a memory 1150 , and a user interface 1160 .

[0103] In an embodiment of the present invention, the device further includes: a computer program stored in the memory 1150 and executable on the processor 1120 , and when the computer program is executed by the processor 1120 , each process of the embodiment of the method for manufacturing a display screen is implemented.

[0104] The transceiver 1130 is configured to receive and send data under the control of the processor 1120 .

[0105] In an embodiment of the present invention, a bus architecture (represented by bus 1110) may include any number of interconnected buses and bridges, and bus 1110 connects various circuits including one or more processors represented by processor 1120 and a memory represented by memory 1150.

[0106] Bus 1110 represents one or more of any of several types of bus structures, including a memory bus and memory controller, a peripheral bus, an Accelerated Graphical Port (AGP), a processor, or a local bus using any of a variety of bus architectures. By way of example and not limitation, such architectures include an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MCA) bus, an Enhanced ISA (EISA) bus, a Video Electronics Standards Association (VESA), and a Peripheral Component Interconnect (PCI) bus.

[0107] The processor 1120 can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above-mentioned processor includes: a general-purpose processor, a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), a complex programmable logic device (CPLD), a programmable logic array (PLA), a microcontroller unit (MCU) or other programmable logic devices, discrete gates, transistor logic devices, discrete hardware components. The various methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. For example, the processor can be a single-core processor or a multi-core processor, and the processor can be integrated into a single chip or located on multiple different chips.

[0108] The processor 1120 can be a microprocessor or any conventional processor. The method steps disclosed in conjunction with the embodiments of the present invention can be directly executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a readable storage medium known in the art, such as a random access memory (RAM), a flash memory (Flash Memory), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), or a register. The readable storage medium is located in a memory, and the processor reads the information in the memory and performs the steps of the above method in conjunction with its hardware.

[0109] The bus 1110 may also connect various other circuits, such as peripheral devices, voltage regulators, or power management circuits. The bus interface 1140 provides an interface between the bus 1110 and the transceiver 1130. These are all well known in the art and are therefore not further described in this embodiment of the present invention.

[0110] The transceiver 1130 can be a single component or multiple components, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium. For example, the transceiver 1130 receives external data from other devices and transmits data processed by the processor 1120 to other devices. Depending on the nature of the computer system, a user interface 1160 may also be provided, such as a touch screen, physical keyboard, display, mouse, speaker, microphone, trackball, joystick, or stylus.

[0111] It should be understood that in an embodiment of the present invention, the memory 1150 may further include a memory remotely located relative to the processor 1120, and these remotely located memories may be connected to a server via a network. One or more parts of the aforementioned network may be an ad hoc network, an intranet, an extranet, a virtual private network (VPN), a local area network (LAN), a wireless local area network (WLAN), a wide area network (WAN), a wireless wide area network (WWAN), a metropolitan area network (MAN), the Internet, a public switched telephone network (PSTN), a plain old telephone service network (POTS), a cellular telephone network, a wireless network, a wireless fidelity (Wi-Fi) network, or a combination of two or more of the aforementioned networks. For example, the cellular telephone network and the wireless network can be a Global System for Mobile Communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Worldwide Interoperability for Microwave Access (WiMAX) system, a General Packet Radio Service (GPRS) system, a Wideband Code Division Multiple Access (WCDMA) system, a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an Advanced Long Term Evolution (LTE-A) system, a Universal Mobile Telecommunications (UMTS) system, an Enhanced Mobile Broadband (eMBB) system, a Massive Machine Type of Communication (mMTC) system, an Ultra Reliable Low Latency Communications (uRLLC) system, and the like.

[0112] It should be understood that the memory 1150 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Non-volatile memories include read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory.

[0113] Volatile memory includes random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1150 described in the embodiments of the present invention includes, but is not limited to, the above and any other suitable types of memory.

[0114] In the embodiment of the present invention, the memory 1150 stores the following elements of the operating system 1151 and the application 1152: executable modules, data structures, or subsets thereof, or extended sets thereof.

[0115] Specifically, the operating system 1151 includes various system programs, such as a framework layer, a core library layer, and a driver layer, which are used to implement various basic services and process hardware-based tasks. The application 1152 includes various application programs, such as a media player and a browser, which are used to implement various application services. The program that implements the method of the embodiment of the present invention may be included in the application 1152. The application 1152 includes applets, objects, components, logic, data structures, and other computer system executable instructions that perform specific tasks or implement specific abstract data types.

[0116] In addition, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the various processes of the above-mentioned display screen manufacturing method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0117] Computer-readable storage media include: permanent and non-permanent, removable and non-removable media, which are tangible devices that can retain and store instructions for use by instruction execution devices. Computer-readable storage media include: electronic storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, and any suitable combination of the above. Computer-readable storage media include: phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), non-volatile random access memory (NVRAM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette storage, magnetic disk storage or other magnetic storage devices, memory sticks, mechanical encoding devices (such as punched cards or raised structures with grooves in which instructions are recorded), or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined in the embodiments of the present invention, computer-readable storage media does not include temporary signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (such as light pulses passing through fiber optic cables), or electrical signals transmitted through wires.

[0118] In the several embodiments provided in this application, it should be understood that the disclosed devices, equipment and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or can be an electrical, mechanical or other form of connection.

[0119] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, and may be located in a single location or distributed across multiple network units. Some or all of these units may be selected based on actual needs to address the issues addressed by the embodiments of the present invention.

[0120] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0121] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (including: a personal computer, a server, a data center or other network device) to perform all or part of the steps of the method described in each embodiment of the present invention. The above-mentioned storage medium includes the various media that can store program codes as listed above.

[0122] In describing the embodiments of the present invention, those skilled in the art should understand that the embodiments of the present invention can be implemented as methods, apparatuses, devices, and storage media. Therefore, the embodiments of the present invention can be specifically implemented in the following forms: complete hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software. In addition, in some embodiments, the embodiments of the present invention can also be implemented in the form of a computer program product in one or more computer-readable storage media, wherein the computer-readable storage medium contains computer program code.

[0123] The above-mentioned computer-readable storage medium may adopt any combination of one or more computer-readable storage media. Computer-readable storage media include: electrical, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or components, or any combination thereof. More specific examples of computer-readable storage media include: portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM), flash memories (Flash Memory), optical fibers, compact disc read-only memories (CD-ROMs), optical storage devices, magnetic storage devices or any combination thereof. In an embodiment of the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device, or component.

[0124] The computer program code contained in the computer-readable storage medium may be transmitted using any appropriate medium, including wireless, wire, optical cable, radio frequency (RF), or any suitable combination thereof.

[0125] The computer program code for performing the operations of the embodiments of the present invention can be written in assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, integrated circuit configuration data, or in one or more programming languages ​​or a combination thereof, wherein the programming language includes an object-oriented programming language, such as Java, Smalltalk, C++, and also includes a conventional procedural programming language, such as C language or a similar programming language. The computer program code can be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, and entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer or to an external computer via any type of network, including a local area network (LAN) or a wide area network (WAN).

[0126] The embodiments of the present invention describe the provided methods, devices, and apparatuses through flowcharts and / or block diagrams.

[0127] It should be understood that each block in the flowchart and / or block diagram, as well as combinations of blocks in the flowchart and / or block diagram, can be implemented by computer-readable program instructions. These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine. These computer-readable program instructions are executed by the computer or other programmable data processing device to produce a device that implements the functions / operations specified in the blocks in the flowchart and / or block diagram.

[0128] These computer-readable program instructions may also be stored in a computer-readable storage medium that enables a computer or other programmable data processing device to operate in a specific manner. In this way, the instructions stored in the computer-readable storage medium produce an instruction device product that implements the functions / operations specified in the blocks in the flowchart and / or block diagram.

[0129] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device, so that a series of operational steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby enabling the instructions executed on the computer or other programmable data processing apparatus to provide a process that implements the functions / operations specified by the blocks in the flowchart and / or block diagram.

[0130] The above description is merely a specific implementation of the embodiments of the present invention, but the scope of protection of the embodiments of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the embodiments of the present invention should be included in the scope of protection of the embodiments of the present invention. Therefore, the scope of protection of the embodiments of the present invention should be based on the scope of protection of the claims.

Claims

1. A display screen, characterized in that: include: A plurality of periodically arranged pixels (100), wherein the pixel (100) comprises at least one sub-pixel (1), and the sub-pixel (1) is used to display color; The sub-pixel (1) comprises: a basic structure (11) and at least one micro-nanostructure (12), wherein the basic structure (11) is used to emit imaging light having the color; The micro-nano structure (12) is arranged on the backlight side of the basic structure (11) and is used to project incident light into speckles and emit the speckles through the basic structure (11); The refractive index of the basic structure (11) is smaller than the refractive index of the micro-nanostructure (12), and the absolute value of the difference between the refractive index of the micro-nanostructure (12) and the refractive index of the basic structure (11) is greater than a preset threshold value, so as to configure the display screen as a diffraction element capable of applying target regulation to an incident light beam.

2. The display screen according to claim 1, wherein: The material of the micro-nano structure (12) includes: silicon nitride, fused quartz, gallium nitride, amorphous silicon or crystalline silicon; The basic structure (11) comprises: a metal cathode layer (111), a hole transport layer (112), an organic molecule layer (113), an electron transport layer (114), a transparent anode layer (115), and a substrate layer (116) stacked in sequence, wherein the side of the metal cathode layer (111) away from the hole transport layer (112) is bonded to the micro-nano structure (12).

3. The display screen according to claim 1, wherein: The micro-nano structure (12) is an antenna, and the material of the micro-nano structure (12) is a precious metal; The basic structure (11) comprises: a hole transport layer (112), an organic molecular layer (113), an electron transport layer (114), a transparent anode layer (115), and a substrate layer (116) stacked in sequence, wherein the hole transport layer (112) is arranged in contact with the micro-nano structure (12) on a side away from the organic molecular layer (113).

4. The display screen according to claim 3, wherein: The micro-nano structure (12) includes: a double-arm structure, or an open ring structure; The double-arm structure includes two straight arms connected at one end, and an angle is formed between the two straight arms.

5. The display screen according to any one of claims 1 to 4, characterized in that: The pixel (100) comprises three sub-pixels (1) displaying different colors, and each sub-pixel (1) is used to display a first color, a second color, or a third color.

6. A method for manufacturing a display screen according to any one of claims 1 to 5, characterized in that: include: Determining the phase distribution of the display screen based on a preset speckle image and a light source function corresponding to a light source for projecting the speckle; the speckle image is used to represent a schematic diagram of the distribution of the speckle to be projected by the display screen; Establishing a sub-pixel database through simulation, wherein the sub-pixel database includes a plurality of sub-pixels of different structural sizes, each of the sub-pixels corresponding to a control phase; In the sub-pixel database, sub-pixels corresponding to the regulated phase that conforms to the phase distribution are selected, the distribution of sub-pixels in the display screen is determined, and the display screen is generated based on the distribution; the distribution represents the structural dimensions of sub-pixels at different positions.

7. The manufacturing method according to claim 6, characterized in that Determining the phase distribution of the display screen according to a preset speckle image and a light source function corresponding to a light source for projecting the speckle includes: determining the phase distribution of the display screen by using a GS algorithm or an iterative Fourier transform algorithm.

8. The manufacturing method according to claim 6, characterized in that In the case of manufacturing a display screen in which pixels include three sub-pixels displaying different colors, each of the sub-pixels is used to display a first color, a second color, or a third color, the step of establishing a sub-pixel database through simulation includes: For the organic molecules of the sub-pixels of each structural size, respectively matching the refractive index for displaying the first color, the refractive index for displaying the second color, and the refractive index for displaying the third color; Three different control phases are simulated for sub-pixels of each structural size to form the sub-pixel database; each of the control phases is a control phase corresponding to a sub-pixel having organic molecules with different refractive indices.

9. The manufacturing method according to claim 6, characterized in that In the case of manufacturing a display screen in which pixels include three sub-pixels displaying different colors, each of the sub-pixels is used to display a first color, a second color, or a third color, the step of establishing a sub-pixel database through simulation includes: averaging the refractive indices of the organic molecules used to display different colors, and setting the average value as the refractive index of the organic molecules of each sub-pixel; The control phases corresponding to a plurality of sub-pixels having organic molecules with the same refractive index are obtained by simulation to form the sub-pixel database.

10. The manufacturing method according to claim 9, characterized in that: After selecting the sub-pixels corresponding to the regulated phases that conform to the phase distribution and determining the distribution of the sub-pixels in the display screen, the method further includes: Organic molecules for displaying different colors are allocated to the plurality of sub-pixels in each pixel.

11. A device for manufacturing a display screen, characterized in that: include: Identify modules, establish modules and generate modules; The determination module is used to determine the phase distribution of the display screen according to a preset speckle image and a light source function corresponding to a light source used to project the speckle; the speckle image is used to represent a distribution diagram of the speckle to be projected by the display screen; The establishment module is used to establish a sub-pixel database through simulation, wherein the sub-pixel database includes a plurality of sub-pixels of different structural sizes, and each sub-pixel corresponds to a control phase; The generation module is used to select sub-pixels corresponding to the regulated phase that conforms to the phase distribution in the sub-pixel database, determine the distribution of sub-pixels in the display screen, and generate the display screen based on the distribution; the distribution represents the structural dimensions of sub-pixels at different positions.

12. An electronic device comprising a processor and a memory, wherein the memory stores a computer program, wherein: The processor executes the computer program stored in the memory to implement the method for manufacturing a display screen according to any one of claims 6 to 10.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for manufacturing a display screen according to any one of claims 6 to 10 is implemented.

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