Display screen, adjusting method of display visual angle of display screen, electronic product and storage medium

Abstract

The invention provides a display screen, an adjusting method for a display visual angle of the display screen, an electronic product and a storage medium, and the method comprises the steps: controlling a light adjusting layer through a first control signal, enabling the light adjusting layer not to adjust passing light, and enabling the light to be emitted in a first propagation direction; in response to the adjusting instruction, the light adjusting layer is controlled through a second control signal, so that the light adjusting layer focuses the passing light, and the processed light is emitted in a second propagation direction; wherein the display view angle of the display screen when the light is emitted in the second propagation direction is smaller than the display view angle of the display screen when the light is emitted in the first propagation direction. According to the scheme, adjustment of the display visual angle of the display screen is achieved, after the user triggers the adjustment instruction, the display visual angle of the display screen can be reduced, and therefore the peep-proof purpose is achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of display screens, and in particular to a display screen and a method for adjusting a display viewing angle thereof, an electronic product, and a storage medium. Background Art

[0002] Ordinary LCD screens make it easy for bystanders to peek at sensitive information on the screen, resulting in information leakage. Among the existing anti-peep screen technologies, one method is to adopt a dual-unit (i.e., double-layer structure) design, which will increase the thickness of the panel and affect the thinness of the device. Another method is to add a grating to the backlight module to achieve an anti-peeping effect by adjusting the transmission angle of light, but this method is not suitable for OLED (Organic Light-Emitting Diode) screens and has poor applicability. Summary of the invention

[0003] The present disclosure provides a display screen and a method for adjusting the display viewing angle thereof, an electronic product and a storage medium, so as to at least solve the above technical problems existing in the prior art.

[0004] According to a first aspect of the present disclosure, a method for adjusting a display viewing angle of a display screen is provided, wherein the display screen includes a light adjustment layer, and the method includes:

[0005] Controlling the light adjustment layer by a first control signal so that it does not adjust the light passing through, thereby making the light emitted in a first propagation direction;

[0006] In response to the adjustment instruction, the light adjustment layer is controlled by a second control signal to focus the light passing through, so that the processed light is emitted in a second propagation direction;

[0007] Wherein, the display viewing angle of the display screen when the light is emitted in the second propagation direction is smaller than the display viewing angle of the display screen when the light is emitted in the first propagation direction.

[0008] In one possible implementation, the light adjustment layer includes an electrode layer and a microlens array layer; accordingly,

[0009] The step of controlling the light adjustment layer by the second control signal so as to focus the light passing therethrough comprises:

[0010] Controlling the electrode layer to generate an electric field through a second control signal, and adjusting the focal length of the microlens array layer through the electric field;

[0011] The passing light is focused by adjusting the focal length of the micro-lens array layer.

[0012] In one possible implementation, the electrode layer is divided into a plurality of electrically controlled areas; accordingly,

[0013] The step of controlling the electrode layer to generate an electric field by using a second control signal comprises:

[0014] The electrode layer is controlled by a second control signal so that the electrode layer in at least one electric control area generates an electric field.

[0015] In one possible implementation, the method further includes: dividing the electrode layer according to the size of the display screen to form a plurality of electric control areas.

[0016] In one possible implementation, the microlens array layer is an aspherical microlens array layer.

[0017] According to a second aspect of the present disclosure, a device for adjusting the display viewing angle of a display screen is provided, wherein the display screen includes a light adjustment layer, and the device includes:

[0018] A control module, configured to control the light adjustment layer through a first control signal so that the light adjustment layer does not adjust the light passing through the layer, thereby allowing the light to be emitted in a first propagation direction;

[0019] The control module is further used to respond to the adjustment instruction and control the light adjustment layer through a second control signal so that the light adjustment layer performs focusing processing on the light passing through, so that the processed light is emitted in a second propagation direction;

[0020] Wherein, the display viewing angle of the display screen when the light is emitted in the second propagation direction is smaller than the display viewing angle of the display screen when the light is emitted in the first propagation direction.

[0021] According to a third aspect of the present disclosure, a display screen is provided, the display screen comprising a light adjustment layer and a display unit; wherein:

[0022] The light adjustment layer is used to receive the first control signal, not adjust the light passing through, and make the light be emitted in the first propagation direction, so that the display unit can work in the normal mode;

[0023] The light adjustment layer is further used to receive a second control signal and focus the light passing through so that the processed light is emitted in a second propagation direction, so that the display unit can work in the anti-peeping mode.

[0024] According to a fourth aspect of the present disclosure, an electronic product is provided, comprising the display screen described in any one of the above embodiments.

[0025] According to a fifth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to cause the computer to execute the method described in the present disclosure.

[0026] The display screen and its display viewing angle adjustment method, electronic product and storage medium disclosed in the present invention switch the light adjustment layer between non-adjustment and focusing processing through control signals, so that the display screen can respectively achieve wide viewing angle and narrow viewing angle display, meeting the privacy protection and visual experience requirements in different scenarios.

[0027] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0029] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0030] Figure 1 A schematic diagram of the structure of a display unit according to an embodiment of the present disclosure is shown;

[0031] Figure 2 A schematic diagram showing the structure of a display screen according to an embodiment of the present disclosure is shown;

[0032] Figure 3 A schematic diagram showing the composition structure of another display unit according to an embodiment of the present disclosure is shown;

[0033] Figure 4 A schematic diagram showing the composition structure of another display screen according to an embodiment of the present disclosure is shown;

[0034] Figure 5 A schematic diagram of a flow chart of a method for adjusting the display viewing angle of a display screen according to an embodiment of the present disclosure is shown;

[0035] Figure 6 A schematic diagram of the composition structure of a microlens array according to an embodiment of the present disclosure is shown;

[0036] Figure 7 A schematic diagram of the composition structure of a microlens according to an embodiment of the present disclosure is shown;

[0037] Figure 8 A schematic diagram showing the composition structure of a device for adjusting the display viewing angle of a display screen according to an embodiment of the present disclosure is shown;

[0038] Fig. 9 A circuit diagram of a control module according to an embodiment of the present disclosure is shown;

[0039] Fig.10A schematic diagram of the structure of an electronic device according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0040] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0041] According to a first aspect of an embodiment of the present disclosure, a display screen is provided, which includes a light adjustment layer and a display unit; wherein the light adjustment layer is used to receive a first control signal, and does not adjust the light passing through, so that the light is emitted in a first propagation direction, so that the display unit can work in a normal mode; the light adjustment layer is also used to receive a second control signal, and focuses the light passing through, so that the processed light is emitted in a second propagation direction, so that the display unit can work in an anti-peeping mode.

[0042] Specifically, the light adjustment layer can be set in the middle position of the display unit. The display unit is the core component of image presentation, which is responsible for accurately displaying the image content according to the input signal. When the light adjustment layer receives the first control signal, it does not adjust the propagation direction of the light, and the light is emitted in the original first propagation direction. At this time, the display unit is in normal display mode, that is, the user can clearly see the content on the screen from multiple angles. When the second control signal is received, the passing light is focused. The propagation direction of the light is adjusted to the second propagation direction. At this time, the display unit is in anti-peeping mode. In this mode, the display viewing angle of the display screen will be reduced, and only users in the front or at a specific angle are allowed to view the contents of the screen, effectively preventing bystanders from peeping.

[0043] The display screen of this embodiment only needs to set a light adjustment layer to switch freely between normal mode and anti-peeping mode. In anti-peeping mode, not only the display content is effectively protected from peeping, but also a good display effect is maintained. Compared with the current anti-peeping display screen, the display screen of this embodiment is thinner and lighter, which improves the user experience.

[0044] In one embodiment, the display unit may be a liquid crystal display unit or an organic light emitting display unit.

[0045] When the display unit is a liquid crystal display unit, such as Figure 1As shown in the figure, the unit includes an upper polarizer, a color filter, a liquid crystal layer, a TFT (Thin Film Transistor) glass substrate, a lower polarizer, and a light source from top to bottom. In this structure, the light emitted by the light source first penetrates the lower polarizer, then passes through the liquid crystal layer. The liquid crystal molecules in the liquid crystal layer allow or block the light to pass through in a specific arrangement under the control of the thin film transistors on the TFT glass substrate. Then, it is given color by the color filter and finally emitted by the upper polarizer to form an image seen by the human eye.

[0046] like Figure 2 As shown, in this embodiment, a light adjustment layer is provided between the color filter and the liquid crystal layer of the display unit. The dotted line is used to represent the propagation direction of the light. The light emitted by the light source first passes through the lower polarizer, which adjusts the direction of the light. Then the light enters the liquid crystal layer. The liquid crystal molecules in the liquid crystal layer further adjust the light by changing their arrangement under the control of the TFT glass substrate. Then the light passes through the light adjustment layer. When the light adjustment layer receives the first control signal, it does not adjust the light, so that it directly enters the color filter. When the second control signal is received, the light is focused so that the focused light enters the color filter. Finally, it is emitted by the upper polarizer to form a picture.

[0047] When the display unit is an electroluminescent display unit, such as Figure 3 As shown in the figure, the unit includes glass, polarizer, Encap injection layer, organic sub-light emitting layer and TFT substrate from top to bottom. The TFT substrate is used to control the path of current through the organic sub-light emitting layer. When current passes through the organic sub-light emitting layer, electrical energy is converted into light energy to generate light. The light passes through the Encap packaging layer to further improve the luminous efficiency. Then, the light enters the polarizer, allowing light in a specific direction to pass through. Finally, it passes through the outermost layer of glass.

[0048] like Figure 4 As shown, in this embodiment, a light adjustment layer is provided between the polarizer of the display unit and the Encap injection layer. When the light passes through the Encap injection layer, the light adjustment layer does not adjust the light when receiving the first control signal, so that the light directly enters the polarizer. When receiving the second control signal, the light is focused so that the focused light enters the polarizer and finally passes through the glass.

[0049] It can be understood that the above-mentioned structure of the display unit is only an illustrative example, and the present disclosure does not limit the specific structure of the display unit.

[0050] The display screen of this embodiment realizes the anti-peeping function by introducing the light adjustment layer. When the anti-peeping mode needs to be switched, the light adjustment layer quickly responds to the control signal and adjusts the passing light so that it is emitted at a specific angle, limiting the visibility when viewed from the side, thereby realizing the anti-peeping function of LCD (Liquid Crystal Display) and OLED.

[0051] According to a second aspect of the embodiments of the present disclosure, a method for adjusting the display viewing angle of a display screen is provided, and the method is applied to the display screen described in the above embodiments. Figure 5 As shown, the method comprises the following steps:

[0052] Step 101, controlling the light adjustment layer through a first control signal so that it does not adjust the light passing through, so that the light is emitted in a first propagation direction;

[0053] Step 102, responding to the adjustment instruction, controlling the light adjustment layer through a second control signal to focus the light passing through, so that the processed light is emitted in a second propagation direction;

[0054] Wherein, the display viewing angle of the display screen when the light is emitted in the second propagation direction is smaller than the display viewing angle of the display screen when the light is emitted in the first propagation direction.

[0055] Specifically, when the user does not need to turn on the anti-peeping mode, the system sends a first control signal to the light adjustment layer. The first control signal is used to make the light adjustment layer in an inactive state, that is, not to adjust the light passing through it, so that the light is emitted in the first propagation direction, thereby ensuring that the display screen works in normal mode and provides a larger display viewing angle.

[0056] When the user needs to turn on the anti-peeping mode, an adjustment instruction will be triggered. In one embodiment, the user can trigger the instruction through a switch or a specific gesture in the user interface. Or the device is automatically triggered according to the environment. For example, when it detects that someone is nearby, the device automatically triggers the instruction. Once the adjustment instruction is triggered, the MCU will respond immediately. And send a second control signal to control the light adjustment layer. The second control signal is used to activate the light adjustment layer so that it focuses the light passing through. Thereby changing the propagation path of the light so that it is emitted in a second propagation direction, so that only light at a specific angle (such as the front) is emitted, reducing the display viewing angle, thereby achieving an anti-peeping effect. Among them, the light adjustment layer can use a microlens array, a liquid crystal polarization regulator or other optical elements to adjust the propagation path of the light.

[0057] The method for adjusting the display viewing angle of the display screen of this embodiment can flexibly switch the display viewing angle. The light adjustment layer is switched between non-adjustment and focusing processing through a control signal, thereby realizing wide viewing angle and narrow viewing angle display respectively, meeting the privacy protection and visual experience requirements in different scenes.

[0058] In one embodiment of the present disclosure, the light adjustment layer may include an electrode layer and a microlens array layer. Accordingly, the light adjustment layer is controlled by a second control signal to focus the light, specifically comprising the following steps: controlling the electrode layer to generate an electric field by the second control signal, and adjusting the focal length of the microlens array layer by the electric field; and focusing the light by adjusting the microlens array layer after the focal length is adjusted.

[0059] like Figure 6 As shown, the microlens array layer is a transparent microlens array. When the second control signal applies a specific voltage to the electrode layer, an electric field is generated in the microlens array layer. This electric field acts on the material inside the microlens array layer, causing the refractive index or shape of the material to change, thereby affecting the focal length of the microlens. The change in focal length changes the propagation path of the light, causing the light to be focused after passing through the light adjustment layer, thereby changing the direction of light passing. The size of the adjusted display viewing angle can be changed by changing the focal length of the microlens.

[0060] Figure 7 A schematic diagram of a microlens structure is shown in FIG. Figure 7 As shown, the collimated light source is incident on the first microlens array (LA1). Each small lens of LA1 splits the incident light beam into several small light beams and focuses them at the corresponding position of the second microlens array (LA2). Each small lens of LA2 further focuses the received small light beams and overlaps the light beams on the receiving screen (FP) through the focusing lens (FL) at the rear. According to formula (1), the diameter D of the output light beam can be obtained: vx :

[0061]

[0062] Among them, p v is the diameter of each microlens in the microlens array; f 2v is the focal length of the first microlens array; f f is the focal length of the focusing lens.

[0063] The selection of microlenses is preferably set as follows: the spacing between microlenses in the microlens array is preferably set to 1.5 to 2 times the diameter of the microlens. This ensures that the light will not interfere with each other during propagation, thereby ensuring the imaging quality. The present disclosure preferably uses aspheric lenses, which can effectively reduce aberrations and improve imaging clarity. The design of aspheric lenses can be determined according to the actual application scenario. For example, the diameter is set between a few microns and more than ten microns. The radius of curvature is set between 10 microns and 50 microns. The focal length can be obtained based on the refractive index of the material and the radius of curvature of the lens. For example, the material refractive index n = 1.5, the lens radius of curvature R = 30 microns, and the focal length f is obtained according to formula (2):

[0064]

[0065] In one embodiment of the present disclosure, the electrode layer is divided into a plurality of electrically controlled areas; accordingly, the electrode layer is controlled to generate an electric field by a second control signal, including: controlling the electrode layer by a second control signal so that the electrode layer in at least one electrically controlled area generates an electric field.

[0066] In this embodiment, the electrode layer is divided into a plurality of electrically controlled areas (such as a first area and a second area). In one implementation, the electrode layer can be divided according to the specific size of the display screen. The second control signal can control each area individually to achieve flexible adjustment of the display viewing angle. Specifically, when it is necessary to set a certain area to an anti-peeping mode, the second control signal can apply a specific electric field to the electrode layer of the area to change the propagation path of light in the area, thereby reducing visibility when viewed from the side. For example, when only the first area is set to an anti-peeping mode, the second control signal adjusts the propagation path of the light in the area, so that the display viewing angle becomes smaller, and only viewers from the front or at a specific angle can clearly see the display content. At the same time, the second control signal does not control the propagation path of the light in the second area, thereby ensuring that the second area works in normal mode, that is, the display viewing angle is larger.

[0067] The method of this embodiment can independently regulate different areas of the same display screen so that it has different display viewing angles, thereby adapting to more application scenarios.

[0068] According to a third aspect of the embodiments of the present disclosure, a device for adjusting the display viewing angle of a display screen is provided. Figure 8 As shown, the device includes the following modules:

[0069] A control module 801 is used to control the light adjustment layer through a first control signal so that the light adjustment layer does not adjust the propagation direction of the light, thereby making the light emitted in a first propagation direction;

[0070] The control module 801 is further used to respond to the adjustment instruction and control the light adjustment layer through the second control signal to focus the light, so that the processed light is emitted in the second propagation direction;

[0071] Wherein, the display viewing angle of the display screen when the light is emitted in the second propagation direction is smaller than the display viewing angle of the display screen when the light is emitted in the first propagation direction.

[0072] In one embodiment of the present disclosure, the light adjustment layer includes an electrode layer and a microlens array layer; the control module 801 is also used to control the electrode layer to generate an electric field through a second control signal, and adjust the focal length of the microlens array layer through the electric field; and focus the light through the microlens array layer after adjusting the focal length.

[0073] In one embodiment of the present disclosure, the electrode layer is divided into a plurality of electrically controlled areas; accordingly, the control module 801 is further used to control the electrode layer through a second control signal so that the electrode layer in at least one electrically controlled area generates an electric field.

[0074] In one embodiment of the present disclosure, the device further includes a dividing module (not shown in the figure), and the dividing module is used to divide the electrode layer according to the size of the display screen to form a plurality of electric control areas.

[0075] In one embodiment of the present disclosure, a driving schematic diagram of a control module 801 is provided, such as Fig. 9 As shown, Vctrl is used to control the state of the light adjustment layer. By controlling the voltage value of Vctrl, the focus inside the light adjustment layer is changed. Vdata-MCU is used to receive a control signal from the MCU. When it is the first control signal, the light adjustment layer is not adjusted by adjusting the voltage value of Vctrl. When it is the second control signal, the light adjustment layer is focused by adjusting the voltage value of Vctrl. MS is a switch for controlling the switch closure state of the circuit. By changing the state of MS, the circuit part related to the light adjustment layer can be turned on or off. MSW is used to switch the signal path and determine whether the MCU controls the corresponding light adjustment layer. By changing the state of MSW, only the light adjustment layer in a specific area can be activated, thereby realizing the anti-peeping function of the area.

[0076] According to a fourth aspect of the embodiments of the present disclosure, an electronic product is provided, the electronic product comprising the display screen described in any one of the above embodiments. The electronic product may specifically be a laptop computer, a tablet computer, a smart phone, etc.

[0077] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device and a readable storage medium.

[0078] Fig.10 A schematic block diagram of an example electronic device 1000 that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0079] like Fig.10 As shown, the device 1000 includes a computing unit 1001, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 1002 or a computer program loaded from a storage unit 1008 into a random access memory (RAM) 1003. In the RAM 1003, various programs and data required for the operation of the device 1000 can also be stored. The computing unit 1001, the ROM 1002, and the RAM 1003 are connected to each other via a bus 1004. An input / output (I / O) interface 1005 is also connected to the bus 1004.

[0080] A number of components in the device 1000 are connected to the I / O interface 1005, including: an input unit 1006, such as a keyboard, a mouse, etc.; an output unit 1007, such as various types of displays, speakers, etc.; a storage unit 1008, such as a disk, an optical disk, etc.; and a communication unit 1009, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 1009 allows the device 1000 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0081] The computing unit 1001 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 1001 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The computing unit 1001 performs the various methods and processes described above, such as a method for adjusting the display viewing angle of a display screen. For example, in some embodiments, the method for adjusting the display viewing angle of a display screen may be implemented as a computer software program, which is tangibly included in a machine-readable medium, such as a storage unit 1008. In some embodiments, part or all of the computer program may be loaded and / or installed on the device 1000 via the ROM 1002 and / or the communication unit 1009. When the computer program is loaded into the RAM 1003 and executed by the computing unit 1001, one or more steps of the method for adjusting the display viewing angle of the display screen described above may be performed. Alternatively, in other embodiments, the computing unit 1001 may be configured to execute the method for adjusting the viewing angle of a display screen in any other appropriate manner (for example, by means of firmware).

[0082] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0083] The program code for implementing the method of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0084] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0085] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0086] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0087] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship with each other. The server may be a cloud server, a server of a distributed system, or a server combined with a blockchain.

[0088] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0089] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0090] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A method for adjusting the display viewing angle of a display screen, characterized in that: The display screen includes a light adjustment layer, and the method includes: Controlling the light adjustment layer by a first control signal so that it does not adjust the light passing through, thereby making the light emitted in a first propagation direction; In response to the adjustment instruction, the light adjustment layer is controlled by a second control signal to focus the light passing through, so that the processed light is emitted in a second propagation direction; Wherein, the display viewing angle of the display screen when the light is emitted in the second propagation direction is smaller than the display viewing angle of the display screen when the light is emitted in the first propagation direction.

2. The method according to claim 1, characterized in that The light adjustment layer includes an electrode layer and a microlens array layer; accordingly, The step of controlling the light adjustment layer by the second control signal so as to focus the light passing therethrough comprises: Controlling the electrode layer to generate an electric field through a second control signal, and adjusting the focal length of the microlens array layer through the electric field; The passing light is focused by adjusting the focal length of the micro-lens array layer.

3. The method according to claim 2, characterized in that The electrode layer includes a plurality of electric control areas; accordingly, The step of controlling the electrode layer to generate an electric field by using a second control signal comprises: The electrode layer is controlled by a second control signal so that the electrode layer in at least one electric control area generates an electric field.

4. The method according to claim 3, characterized in that The method further comprises: The electrode layer is divided according to the size of the display screen to form a plurality of electric control areas.

5. The method according to claim 2, characterized in that: The microlens array layer is an aspherical microlens array layer.

6. A device for adjusting the viewing angle of a display screen, characterized in that: The display screen includes a light adjustment layer, and the device includes: A control module, configured to control the light adjustment layer through a first control signal so that the light adjustment layer does not adjust the light passing through the layer, thereby allowing the light to be emitted in a first propagation direction; The control module is further used to respond to the adjustment instruction and control the light adjustment layer through a second control signal so that the light adjustment layer performs focusing processing on the light passing through, so that the processed light is emitted in a second propagation direction; Wherein, the display viewing angle of the display screen when the light is emitted in the second propagation direction is smaller than the display viewing angle of the display screen when the light is emitted in the first propagation direction.

7. A display screen, characterized in that: The display screen includes a light adjustment layer and a display unit; wherein, The light adjustment layer is used to receive the first control signal, not adjust the light passing through, and make the light be emitted in the first propagation direction, so that the display unit can work in the normal mode; The light adjustment layer is further used to receive a second control signal and focus the light passing through so that the processed light is emitted in a second propagation direction, so that the display unit can work in the anti-peeping mode.

8. The display screen according to claim 7, characterized in that: The display unit is a liquid crystal display unit or an organic light emitting display unit.

9. An electronic product, characterized in that: The electronic product comprises the display screen according to any one of claims 7 to 8.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to make a computer execute the method according to any one of claims 1-5.

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