Digital display system, manufacturing method, electronic device, and display method

Abstract

The present invention provides a digital display system, a manufacturing method, an electronic device, a display method, and a storage medium. The system includes an electrochromic device and a device frame. The electrochromic device comprises, from bottom to top, a conductive substrate, a color-changing functional layer, and an electrolyte layer. The color-changing functional layer is composed of a black electrochromic material and includes a background area and multiple independent display units. The conductive substrate is provided with multiple electrodes corresponding to the independent display units. The device frame includes a signal receiving unit, a power supply, and multiple pins. The signal receiving unit receives a control signal and controls the power supply to output a control voltage to the corresponding electrodes through the pins based on the control signal. The pins are connected to the corresponding electrodes, and the power supply is connected to the multiple pins. The present invention uses a black electrochromic material as the color-changing functional layer. By controlling the voltage, the electrochromic material undergoes a color change reaction, causing the background area and the independent display units to appear black or transparent, respectively, thereby achieving high-contrast digital display.

Description

Technical Field

[0001] The present invention relates to the field of digital display technology, and in particular to a digital display system, a manufacturing method, an electronic device, a display method, and a computer-readable storage medium. Background Art

[0002] With the advancement of sophistication, paperless technology, and information technology across all industries, society is increasingly demanding electronic digital displays. However, current electronic digital displays consume a lot of energy and are relatively glaring. Electrochromic materials, however, are widely used in the display field due to their rich colors, energy conservation, environmental protection, and intelligent controllability. Furthermore, displays made with electrochromic materials offer passive display, making them more comfortable for the eyes. Therefore, digital displays made with electrochromic materials have enormous potential for application.

[0003] Initial electrochromic digital displays, such as price tags, clocks, and digital tubes, have been introduced to the market, with the goal of expanding into smart supermarkets, home living, and other fields. However, most products utilize WO3 as the electrochromic material. Displays made with WO3 exhibit a light blue digit display against a transparent background, resulting in a low contrast ratio that is difficult to adapt to modern user habits. Summary of the Invention

[0004] The main purpose of the embodiments of the present invention is to provide a digital display system and a manufacturing method thereof, which can effectively improve the color contrast between the background area and the digital display area of ​​the digital display.

[0005] To achieve the above-mentioned purpose, the first aspect of an embodiment of the present invention proposes a digital display system, a digital display system, characterized in that the system includes: an electrochromic device, the electrochromic device is composed of a conductive substrate, a color-changing functional layer and an electrolyte layer from bottom to top, the color-changing functional layer is composed of a black electrochromic material, the color-changing functional layer includes a display area and a background area, the display area includes multiple independent display units, the electrolyte layer is connected to the color-changing functional layer, leads and multiple electrodes are provided on the conductive substrate, the electrodes are arranged in a one-to-one correspondence with the independent display units and are connected through leads; the outer frame of the device includes a signal receiving unit, a power supply and multiple pins, the signal receiving unit is used to receive a control signal, and control the power supply to output a control voltage to the corresponding electrode through the pin according to the control signal, the pins are connected to the electrodes in a one-to-one correspondence, and the power supply is connected to multiple pins.

[0006] In some embodiments, the black electrochromic material is nickel oxide.

[0007] In some embodiments, the electrolyte layer stores cations, and the background region is used to store cations that migrate from the electrolyte layer during the color change reaction.

[0008] In some embodiments, the electrochromic device further includes a packaging module, which includes a top packaging layer and a side packaging layer. The top packaging layer covers the electrolyte layer, and the side packaging layer is arranged at the edge of the electrochromic device. The upper end of the side packaging layer is connected to the lower surface of the top packaging layer, and the lower end is connected to the upper surface of the conductive substrate.

[0009] A second aspect of an embodiment of the present invention provides an electronic device, comprising a digital display system as described in any one of the first aspects.

[0010] A third aspect of an embodiment of the present invention provides a method for manufacturing a digital display system of an electronic device, comprising:

[0011] Photolithographically designing a pattern on a conductive substrate;

[0012] Generating electrodes and leads on a conductive substrate according to a designed pattern;

[0013] fabricating a color-changing functional layer on a conductive substrate according to a design pattern;

[0014] Covering the color-changing functional layer with electrolyte to form an electrolyte layer;

[0015] Encapsulating the conductive substrate, the color-changing functional layer, and the electrolyte layer to form an electrochromic device;

[0016] The pins of the device outer frame are inserted into the electrodes to connect the device outer frame with the electrochromic device to form a digital display system.

[0017] In some embodiments, forming a color-changing functional layer on a conductive substrate according to a design pattern includes:

[0018] A nickel oxide film is formed on a conductive substrate according to a designed pattern using a magnetron sputtering process;

[0019] The nickel oxide film is divided into a display area and a background area by etching to form a color-changing functional layer, wherein the display area includes at least one independent display unit, and the background area and each independent display unit are connected to the corresponding electrode through a lead.

[0020] A fifth aspect of an embodiment of the present invention proposes a display method, which is applied to a digital display system such as any one of the first aspects, including: obtaining a first control signal and obtaining a second control signal; determining a display state according to the first control signal, wherein the display state includes a colored state display and a transparent state display; determining the polarity of multiple electrodes according to the second control signal and the display state; and controlling a power supply to output a control voltage to corresponding electrodes through pins according to the polarity of the multiple electrodes, so as to cause the electrochromic material to undergo a color change reaction.

[0021] In some embodiments, the control voltage ranges from 1V to 3V.

[0022] A fifth aspect of an embodiment of the present invention provides a computer-readable storage medium, which stores one or more programs. The one or more programs can be executed by one or more processors to implement a display method as described in any one of the fourth aspects.

[0023] The digital display system machine manufacturing method, electronic device, display method, and storage medium proposed in the embodiments of the present invention include an electrochromic device and a device outer frame. The electrochromic device comprises, from bottom to top, a conductive substrate, a color-changing functional layer, and an electrolyte layer. The color-changing functional layer includes a display area and a background area. The color-changing functional layer is composed of a black electrochromic material. The display area includes multiple independent display units. The electrolyte layer is connected to the color-changing functional layer. The conductive substrate is provided with leads and multiple electrodes. The multiple electrodes are provided in a one-to-one correspondence with the multiple independent display units. The leads are used to connect the electrodes to the corresponding independent display units. The device outer frame includes a power supply and multiple pins. The multiple pins are connected in a one-to-one correspondence with the multiple electrodes. The power supply is used to output a control voltage to the electrodes through the pins. The power supply is connected to the multiple pins. Based on this, the power supply outputs a control voltage to the corresponding electrode through the pin, and then transmits it to the corresponding independent display unit via the lead. The cations stored in the electrolyte layer will be injected into the background area and / or the corresponding independent display unit or extracted from the background area and / or the corresponding independent display unit according to the output control voltage of the background area and each independent display unit. As the cations are injected or extracted, the electrochromic material of the background area and each independent display unit will change color. Specifically, the area where the cations are injected will appear transparent, while the area where the cations are extracted will appear black. In this way, digital display with high color contrast is achieved.

[0024] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purposes and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural diagram of a digital display system provided by the first aspect of an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the front structure of the electrochromic device;

[0027] Figure 3 1 is a schematic diagram of the side structure of the electrochromic device;

[0028] Figure 4 is a schematic diagram of the cross-sectional structure of an electrochromic device;

[0029] Figure 5 is a flow chart of a method for manufacturing a digital display system provided by a second aspect of an embodiment of the present invention;

[0030] Figure 6 This is a simulation diagram of an electronic device based on a digital display system provided by the third aspect of an embodiment of the present invention;

[0031] Figure 7 is a flow chart of a display method provided by the fourth aspect of an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the hardware structure of an electronic device provided in the fifth aspect of an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] It should be noted that although the device schematics illustrate functional module divisions and the flowcharts illustrate logical sequences, in certain circumstances, the steps shown or described may be executed in a sequence that differs from the module divisions in the device or the sequence in the flowcharts. The terms "first," "second," and so on, in the specification, claims, and drawings, are used to distinguish similar items and are not necessarily used to describe a specific sequence or precedence.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terms used herein are for the purpose of describing embodiments of the present invention only and are not intended to limit the present invention.

[0036] In addition, the described features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid blurring various aspects of the present disclosure.

[0037] In the description of the embodiments of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the embodiments of the present invention based on the specific content of the technical solution.

[0038] With the rapid development of science and technology, electrochromic materials have gained popularity due to their rich colors, energy conservation and environmental protection, controllable intelligence, and comfortable appearance. They are widely used in smart supermarkets, home furnishings, and other fields. However, most products use WO3 as the electrochromic material. Displays made with WO3 electrochromic material have a light blue digital display and a transparent background. This composition has low contrast and is difficult to meet the usage habits of modern users.

[0039] In response to the above-mentioned problems existing in the prior art, an embodiment of the present invention proposes a digital display system and a manufacturing method thereof. The digital display system includes an electrochromic device and a device outer frame. The electrochromic device is composed of a conductive substrate, a color-changing functional layer and an electrolyte layer from bottom to top. The color-changing functional layer includes a display area and a background area. The color-changing functional layer is composed of a black electrochromic material. The display area includes multiple independent display units. The electrolyte layer is connected to the color-changing functional layer. Leads and multiple electrodes are provided on the conductive substrate. The multiple electrodes are provided in a one-to-one correspondence with the multiple independent display units. The leads are used to connect the electrodes and the corresponding independent display units; the device outer frame includes a power supply and multiple pins. The multiple pins are connected in a one-to-one correspondence with the multiple electrodes. The power supply is used to output a control voltage to the electrodes through the pins. The power supply is connected to the multiple pins. Based on this, the power supply outputs a control voltage to the corresponding electrode through the pin, and then transmits it to the corresponding independent display unit through the lead. The cations stored in the electrolyte layer will be injected into the background area and / or the corresponding independent display unit, or extracted from the background area and / or the corresponding independent display unit according to the output control voltage of the background area and each independent display unit. As the cations are injected or extracted, the electrochromic material of the background area and each independent display unit will change color. Specifically, the area where the cations are injected will appear transparent, while the area where the cations are extracted will appear black. In this way, digital display with high color contrast is achieved.

[0040] A first aspect of an embodiment of the present invention provides a digital display system, such as Figures 1 to 4 As shown, Figure 1 is a structural diagram of a digital display system provided by an embodiment of the present invention, Figure 2 This is a schematic diagram of the front structure of the electrochromic device. Figure 3 This is a schematic diagram of the side structure of the electrochromic device. Figure 4This is a schematic diagram of the cross-sectional structure of an electrochromic device. The digital display system includes an electrochromic device 1 and a device frame 2. The electrochromic device comprises, from bottom to top, a conductive substrate 11, a color-changing functional layer 12, and an electrolyte layer 14. The color-changing functional layer includes a background area 121 and a display area 122. The color-changing functional layer is composed of a black electrochromic material. The display area includes multiple independent display cells 122. The electrolyte layer 14 is connected to the color-changing functional layer 12. The conductive substrate 11 is provided with leads 113 and multiple electrodes 112. The multiple electrodes 112 are arranged in a one-to-one correspondence with the multiple independent display cells 122. The leads 113 are used to connect the electrodes 112 to the corresponding independent display cells 122. The device frame 2 includes a power supply and multiple pins. The multiple pins are connected to the multiple electrodes 112 in a one-to-one correspondence. The power supply is used to output a control voltage to the electrodes 112 through the pins, and the power supply is connected to the multiple pins. It should be noted that the electrodes 112, background area 121, and display area 122 are arranged side by side on the same conductive substrate.

[0041] It can be understood that the independent display units and the background area are insulated from each other by the insulating gaps 13 .

[0042] refer to Figure 1 In some embodiments, the wireless control system 3 can send a control signal to the device outer frame 2 via Bluetooth or WIFI. After receiving the control signal, the device outer frame 2 will output a control voltage to the corresponding electrode 112 through the pin according to the control signal, and then transmit the control voltage to the background area 121 and / or the corresponding independent display unit 122 via the lead 113, thereby causing the cations stored in the electrolyte layer 14 to be injected into the background area 121 and / or the corresponding independent display unit 122, or causing the cations stored in the background area 121 and / or the corresponding independent display unit 122 to be extracted therefrom, thereby changing the display state of each area to display the target number.

[0043] It is understood that the black electrochromic material is nickel oxide. Nickel oxide normally appears black, but undergoes a reversible color change reaction with alkali metal cations, transforming it into a colored or transparent state. The transparent state appears colorless, while the colored state appears black. Thus, by injecting or extracting cations into the background area and / or the corresponding independent display unit, each area appears black or transparent, thereby achieving high-contrast digital display.

[0044] It can be understood that the conductive substrate is made of indium tin oxide material.

[0045] It is understood that the electrolyte layer 14 can be a gel electrolyte layer or a liquid electrolyte layer. Based on this, since the electrolyte layer 14 covers the color-changing functional layer 12 and is connected to the color-changing functional layer 12, when it is a gel electrolyte layer or a liquid electrolyte layer, the electrolyte therein can move between the electrolyte layer 14 and the background area 121 of the color-changing functional layer 12 and each independent display unit 122 under an electrical environment.

[0046] It is understood that the electrolyte layer is composed of cations, which may include at least one of potassium ions, sodium ions, lithium ions, and manganese ions. Alkaline cations can react with nickel oxide to change color, causing the nickel oxide to appear colored or transparent. Specifically, after injecting alkaline cations, the nickel oxide in that area will become transparent, appearing transparent. After extracting the alkaline cations, the nickel oxide will become colored, appearing black. Based on this, by selectively injecting or extracting alkaline cations from the background area and independent display units, different areas can be made transparent or black, respectively, thereby achieving high-contrast digital display.

[0047] It can be understood that after voltage is applied, the alkaline cations will migrate according to the polarity of each independent display unit and the background area, and after power is cut off, the cations will remain in the independent display unit and / or the background area. Based on this, after power is cut off, the electrochromic device will still maintain the display state before power is cut off. In this way, it is possible to power on only when the display content of the digital display system needs to be changed, and to disconnect the power supply when the display content of the familiar display system remains unchanged, thereby achieving energy saving and environmental protection.

[0048] It is understood that the electrochromic device 1 may further include an encapsulation module, including a top encapsulation layer 15 and a side encapsulation layer 16. The top encapsulation layer covers the electrolyte layer 14, and the side encapsulation layer 16 is provided at the edge of the electrochromic device 1. The upper end of the side encapsulation layer is connected to the lower surface of the top encapsulation layer 15, and the lower end is connected to the upper surface of the conductive substrate 11. Specifically, the top encapsulation layer 15 is made of soda-lime-silica glass, which is transparent and colorless and does not obstruct the display of the color-changing functional layer. The side encapsulation layers can be made of an adhesive such as acrylic glue to bond the device together.

[0049] Reference Figure 2 In some embodiments, the display area includes 7 independent display units arranged to form the number "8"

[0050] Reference Figure 5 The second aspect of the embodiment of the present invention further discloses a method for manufacturing a digital display system, which includes but is not limited to the following steps:

[0051] Step S501, photolithographically designing a pattern on a conductive substrate;

[0052] Step S502, generating electrodes and leads on the conductive substrate according to the design pattern;

[0053] Step S503, forming a color-changing functional layer on the conductive substrate according to the design pattern;

[0054] Step S504, covering the color-changing functional layer with an electrolyte to form an electrolyte layer;

[0055] Step S505, encapsulating the conductive substrate, the color-changing functional layer, and the electrolyte layer to form an electrochromic device;

[0056] Step S506 , inserting the pins of the device outer frame into the electrodes to connect the device outer frame to the electrochromic device to form a digital display system.

[0057] It is understandable that photolithography is performed on the conductive substrate to form a design pattern, and the positions occupied by the background area, display area, leads and electrodes are distinguished on the conductive substrate, thereby facilitating subsequent execution of other operations.

[0058] It is understandable that after the design pattern is photolithographically formed, electrodes and leads can be generated at corresponding positions on the conductive substrate according to the design pattern.

[0059] It can be understood that a nickel oxide film is generated on a conductive substrate using a magnetron sputtering process according to a design pattern; the nickel oxide film is divided into a display area and a background area by etching to form a color-changing functional layer, wherein the display area includes at least one independent display unit, and the background area and each independent display unit are connected to the corresponding electrode through leads.

[0060] It should be pointed out that since the leads and electrodes are arranged between each independent display unit and the background area, before performing the magnetron sputtering process, in order to simplify the operation, high-temperature insulating glue can be used to mask the leads and electrode areas, and then nickel oxide can be plated on the conductive substrate by magnetron sputtering to form a nickel oxide thin film as a color-changing functional layer.

[0061] It can be understood that after the color-changing functional layer is produced, an electrolyte containing alkaline cations is covered on the color-changing functional layer to form an electrolyte layer, and then soda-lime-silica glass is covered on the electrolyte layer as a top packaging layer. Adhesives such as acrylic glue are used on the side as side packaging layers. The top packaging layer is connected to the conductive substrate to complete the device packaging to obtain an electrochromic device. The electrodes of the device are then connected one-to-one with the pins of the outer frame of the device, thereby completing the production of the digital display system.

[0062] Reference Figure 6The third aspect of the embodiment of the present invention further provides an electronic device that can combine multiple digital display systems to form an electronic device such as a price tag or clock that can display multiple digits and specific punctuation marks. Figure 6 The price tag is merely an example and does not constitute a limitation of the present invention.

[0063] Reference Figure 7 The fourth aspect of the embodiment of the present invention further discloses a display method, which is applied to the digital display system of the first aspect of the embodiment of the present invention. The display method includes but is not limited to the following steps:

[0064] Step S701, obtaining a first control signal and a second control signal;

[0065] Step S702, determining a display state according to a first control signal;

[0066] Step S703, determining the polarities of the plurality of electrodes according to the second control signal and the display state;

[0067] Step S704 , controlling the power supply to output a control voltage to the corresponding electrodes through the pins according to the polarities of the plurality of electrodes, so as to cause the electrochromic material to undergo a color change reaction.

[0068] It can be understood that the display state includes colored display and transparent display.

[0069] It can be understood that the first control signal is used to determine whether the digital display system adopts a colored display state or a transparent display state, and the second control signal is used to determine the number displayed by the digital display system.

[0070] It can be understood that when the outer frame of the device outputs a control voltage to the electrochromic device, the alkaline cations will spontaneously migrate from the positive pressure area to the negative pressure area. Therefore, by controlling which pin is used as the positive electrode and which pin is used as the negative electrode when the power supply outputs the control voltage, the alkaline cations can be controlled to migrate to the specified background area 121 and / or the independent display unit 122, thereby making the color-changing functional layer present the target display result.

[0071] It is understandable that the control voltage ranges from 1V to 3V.

[0072] In some embodiments, when the first control signal controls the digital display system to display numbers in a transparent state, and the second control signal controls the digital display system to display the number "8", based on the above control signals, the pins corresponding to the electrodes connected to each independent display unit are determined to be the negative poles, and the pins corresponding to the electrodes connected to the background area are determined to be the positive poles. Therefore, after the power supply outputs the control voltage to the corresponding pins, it is equivalent to each independent display unit acting as the cathode of the electrolytic cell and the background area acting as the anode of the electrolytic cell. The cations will spontaneously migrate to the independent display unit acting as the cathode. Due to the injection of cations, the electrochromic material of the independent display unit undergoes a color change reaction and presents a transparent state, while the electrochromic material in the background area loses cations and presents a colored state. Based on this, the digital display system displays the number "8" in a transparent state under high color contrast.

[0073] It can be understood that when the first control signal controls the digital display system to display numbers in a colored state, and the second control signal controls the digital display system to display the number "8", the pin corresponding to the electrode connected to each independent display unit is used as the positive electrode, and the pin corresponding to the electrode connected to the background area is used as the negative electrode when the control power supply outputs the control voltage. After the power supply outputs the control voltage, it is equivalent to the background area as the cathode of the electrolytic cell, and each independent display unit as the anode of the electrolytic cell. At this time, the cations will spontaneously migrate to the background area as the cathode. As a result, the background area is injected with cations, and the electrochromic material in this area undergoes a color change reaction and presents a transparent state, while the independent display unit as the anode should lose the cations and present a colored state. As a result, the digital display system displays the number "8" in a colored state under high color contrast.

[0074] Reference Figure 8 According to a fifth aspect of the present invention, an electronic device 800 is provided, including:

[0075] at least one processor, and

[0076] a memory communicatively connected to at least one processor; wherein,

[0077] The memory stores instructions, which are executed by at least one processor so that the at least one processor implements a method as described in any one of the embodiments of the fourth aspect of the present application when executing the instructions.

[0078] The following combination Figure 8 The hardware structure of the electronic device 800 is described in detail. The computer device includes: a processor 810, a memory 820, an input / output interface 830, a communication interface 840 and a bus 850.

[0079] The processor 810 may be implemented as a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is configured to execute relevant programs to implement the technical solutions provided by the embodiments of the present disclosure.

[0080] The memory 820 can be implemented in the form of a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 820 can store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 820 and is called by the processor 810 to execute the face beauty prediction method of the embodiments of the present disclosure.

[0081] Input / output interface 830, used to implement information input and output;

[0082] Communication interface 840, used to implement communication interaction between this device and other devices, which can be achieved through wired means (such as USB, network cable, etc.) or wireless means (such as mobile network, WiFi, Bluetooth, etc.); and

[0083] bus 850 , which transmits information between the various components of the device (e.g., processor 810 , memory 820 , input / output interface 830 , and communication interface 840 );

[0084] The processor 810 , the memory 820 , the input / output interface 830 and the communication interface 840 are connected to each other in communication within the device via a bus 850 .

[0085] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor do they necessarily need to be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0086] Those skilled in the art will appreciate that all or some of the steps in the methods, systems, and functional modules / units in the devices disclosed above may be implemented as software, firmware, hardware, or appropriate combinations thereof.

[0087] The terms "including" and "having" and any variations thereof in the description of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or are inherent to these processes, methods, products or apparatuses.

[0088] It should be understood that in the present invention, "at least one (item)" refers to one or more, and "plurality" refers to two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can represent: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0089] 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, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0090] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the invention is not limited thereby. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and essence of the invention should be within the scope of the invention.

Claims

1. A digital display system, characterized in that: The system comprises: An electrochromic device, comprising, from bottom to top, a conductive substrate, a color-changing functional layer, and an electrolyte layer. The electrolyte layer is composed of cations, the color-changing functional layer is composed of a black electrochromic material, the color-changing functional layer includes a display area and a background area, the display area includes at least one independent display unit, the electrolyte layer is connected to the color-changing functional layer, the conductive substrate is provided with leads and multiple electrodes, the multiple electrodes are arranged in a one-to-one correspondence with the independent display units and connected by the leads, and the background area is connected to the corresponding electrodes; The device outer frame includes a signal receiving unit, a power supply, and a plurality of pins. The signal receiving unit is used to receive a control signal and control the power supply to output a control voltage to the corresponding electrodes through the pins according to the control signal. The pins are connected to the electrodes in a one-to-one correspondence. The power supply is connected to the plurality of pins. Among them, the pin corresponding to the electrode connected to each of the independent display units serves as the negative electrode, and the pin corresponding to the electrode connected to the background area serves as the positive electrode; or, the pin corresponding to the electrode connected to each of the independent display units serves as the positive electrode, and the pin corresponding to the electrode connected to the background area serves as the negative electrode.

2. The digital display system according to claim 1, characterized in that The electrochromic device also includes a packaging module, which includes a top packaging layer and a side packaging layer. The top packaging layer covers the electrolyte layer, and the side packaging layer is arranged at the edge of the electrochromic device. The upper end of the side packaging layer is connected to the lower surface of the top packaging layer, and the lower end is connected to the upper surface of the conductive substrate.

3. An electronic device, characterized in that: The invention comprises a digital display system according to any one of claims 1 to 2.

4. A method for manufacturing a digital display system, characterized in that: include: Photolithographically designing a pattern on a conductive substrate; generating electrodes and leads on the conductive substrate according to the design pattern; A color-changing functional layer is formed on the conductive substrate according to the design pattern, wherein the color-changing functional layer is composed of a black electrochromic material, wherein the black electrochromic material is nickel oxide, and the color-changing functional layer includes a display area and a background area, wherein the display area includes at least one independent display unit; Covering the color-changing functional layer with an electrolyte to form an electrolyte layer, wherein the electrolyte layer is composed of cations; Encapsulating the conductive substrate, the color-changing functional layer, and the electrolyte layer to form an electrochromic device; Inserting the pins of the device outer frame into the electrodes to connect the device outer frame to the electrochromic device to form a digital display system, wherein the background area and each of the independent display units are connected to the corresponding electrodes via leads; Among them, the pin corresponding to the electrode connected to each of the independent display units serves as the negative electrode, and the pin corresponding to the electrode connected to the background area serves as the positive electrode; or, the pin corresponding to the electrode connected to each of the independent display units serves as the positive electrode, and the pin corresponding to the electrode connected to the background area serves as the negative electrode.

5. The method for manufacturing a digital display system according to claim 4, wherein: The step of manufacturing a color-changing functional layer on the conductive substrate according to the design pattern comprises: Generating a nickel oxide thin film on the conductive substrate according to the design pattern by using a magnetron sputtering process; The nickel oxide film is divided into a display area and a background area by etching to form the color-changing functional layer.

6. A display method, applied to the digital display system according to any one of claims 1 to 2, characterized in that: include: Obtaining a first control signal and a second control signal; determining a display state according to the first control signal, wherein the display state includes a colored state display and a transparent state display; determining polarities of a plurality of electrodes according to the second control signal and the display state; The power supply is controlled according to the polarities of the plurality of electrodes to output a control voltage to the electrodes corresponding to the pins, so as to cause the electrochromic material to undergo a color change reaction.

7. The display method according to claim 6, wherein: The control voltage ranges from 1V to 3V.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the display method according to any one of claims 6 to 7.

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