Display screen film, module light plate and display module

Abstract

The application discloses a display screen film, a module lamp plate and a display module. The display screen film comprises a first transparent electrode layer, an electrochromic functional layer, a second transparent electrode layer, a solid-state liquid crystal layer, a third transparent electrode layer, a substrate main body layer and a film functional layer which are sequentially stacked. At least one first electrode connecting piece is arranged on the side surface of the first transparent electrode layer. At least one second electrode connecting piece is arranged on the side surface of the second transparent electrode layer. At least one third electrode connecting piece is arranged on the side surface of the third transparent electrode layer. According to the technical scheme, the module lamp plate of the display module can be matched with different surface haze and blackness (transmittance) according to different application scenarios, so that the requirement of multifunctional and multi-scene display of the display module can be better met.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display screen film material, a module lamp board, and a display module. Background Technology

[0002] Mini LED display packaging technology mainly uses COB packaging. However, with the development of Mini LED displays and market demand, various packaging methods have emerged, and their application scenarios are becoming more and more diverse.

[0003] Currently, modules that automatically adjust brightness based on the usage environment are commonly used in small screens such as mobile phones and tablets, and are rarely used in large-screen displays such as Mini LED displays because the usage environment of large screens is relatively simple. However, as the application scenarios for large screens begin to increase, some large screens are starting to use modules that automatically adjust brightness based on the usage environment. In these related technologies, the large screens using this module simply adjust the display brightness according to the illuminance of the environment, and cannot adjust the surface haze and blackness (transmittance) of the large screen, thus failing to meet the needs of display modules for multi-functional and multi-scenario displays. Utility Model Content

[0004] This application provides a display film material, a module lamp board, and a display module, aiming to solve the technical problem that existing large screens such as Mini LED displays cannot adjust the surface haze and blackness (transmittance) of the large screen, thus failing to meet the needs of display modules for multi-functional and multi-scene display.

[0005] Therefore, this application provides a display screen film material, which includes a first transparent electrode layer, an electrochromic functional layer, a second transparent electrode layer, a solid-state liquid crystal layer, a third transparent electrode layer, a substrate body layer, and a film material functional layer stacked sequentially. At least one first electrode connector is provided on the side of the first transparent electrode layer, at least one second electrode connector is provided on the side of the second transparent electrode layer, and at least one third electrode connector is provided on the side of the third transparent electrode layer.

[0006] Optionally, in some embodiments of this application, the functional layer of the film material includes an anti-glare layer and / or an anti-fingerprint layer, wherein the anti-glare layer is a coating structure containing coarse particles or an organic adhesive layer with a scattering microstructure, and the anti-fingerprint layer is a coating of a fluorinated silane material; and / or,

[0007] The main substrate layer is made of a transparent substrate or a semi-transparent black substrate, wherein the light transmittance of the semi-transparent black substrate is 30% to 70%; and / or,

[0008] The electrochromic functional layer comprises an ion storage layer, an ion conductor layer, and an electrochromic layer stacked sequentially; and / or,

[0009] The solid liquid crystal layer is a solid encapsulating adhesive layer mixed with liquid crystal material; and / or,

[0010] The first transparent electrode layer, the second transparent electrode layer, and the third transparent electrode layer are all ITO transparent electrode layers.

[0011] Optionally, in some embodiments of this application, the display film material further includes an adhesive layer, which is stacked on the surface of the first transparent electrode layer away from the electrochromic functional layer.

[0012] Optionally, in some embodiments of this application, at least three first lugs are provided on the side of the substrate body layer;

[0013] The third transparent electrode layer has at least one second lug on its side, and each second lug corresponds to one first lug, so as to form a third electrode connector in cooperation with the corresponding first lug;

[0014] The second transparent electrode layer has at least one third lug on its side, and each third lug corresponds to one first lug. A first insulating layer is also provided between each third lug and the corresponding first lug to form a second electrode connector in cooperation with the corresponding first lug.

[0015] The first transparent electrode layer has at least one fourth lug on its side, and each fourth lug corresponds to one first lug. A second insulating layer is also provided between each fourth lug and the corresponding first lug to form a first electrode connector in cooperation with the corresponding first lug.

[0016] Furthermore, this application embodiment also provides a module lamp board, including a lamp board body and a display screen film. The display screen film is the aforementioned display screen film. The side surface of the display screen film away from the functional layer of the film is attached to the display surface of the lamp board body. The first transparent electrode layer is electrically connected to a first high-potential electrode on the driving surface of the lamp board body through the first electrode connector. The second transparent electrode layer is electrically connected to a ground electrode on the driving surface of the lamp board body through the second electrode connector. The third transparent electrode layer is electrically connected to a second high-potential electrode on the driving surface of the lamp board body through the third electrode connector.

[0017] Furthermore, this application embodiment also provides a module lamp panel, including a lamp panel body, a first transparent electrode layer, an electrochromic functional layer, a second transparent electrode layer, a solid-state liquid crystal layer, a third transparent electrode layer, and a functional film layer stacked sequentially. The first transparent electrode layer is electrically connected to at least one first high-potential electrode of the lamp panel body, the second transparent electrode layer is electrically connected to at least one ground electrode of the lamp panel body, and the third transparent electrode layer is electrically connected to at least one second high-potential electrode of the lamp panel body.

[0018] Optionally, in some embodiments of this application, the display surface of the lamp panel body is provided with at least one first high-potential electrode connection point, the first transparent electrode layer is stacked on the display surface, and is electrically connected to the corresponding first high-potential electrode through the first high-potential electrode connection point.

[0019] Optionally, in some embodiments of this application, a grounding electrode metal edge is provided on the first side edge of the driving surface of the lamp panel body;

[0020] The second transparent electrode layer is stacked on the electrochromic functional layer and extends to the driving surface through the sidewall corresponding to the first side edge, covering the ground electrode metal edge to make electrical connection with the ground electrode metal edge;

[0021] The first transparent electrode layer is stacked on the display surface of the lamp panel body, and the side of the first transparent electrode layer corresponding to the first side edge is insulated from the second transparent electrode layer.

[0022] Optionally, in some embodiments of this application, at least one second high-potential electrode connection point is provided on the second side edge of the driving surface of the lamp panel body;

[0023] The third transparent electrode layer is stacked on the solid liquid crystal layer and extends to the driving surface through the sidewall corresponding to the second side edge, covering all the second high potential electrode connection points, so as to make electrical connection with the corresponding second high potential electrode through the second high potential electrode connection points;

[0024] The first transparent electrode layer is stacked on the display surface of the lamp panel body, and the side of the first transparent electrode layer corresponding to the second side edge is insulated from the third transparent electrode layer;

[0025] The second transparent electrode layer is stacked on the electrochromic functional layer, and the side of the second transparent electrode layer corresponding to the second side edge is insulated from the third transparent electrode layer.

[0026] In addition, this application embodiment also provides a display module, including the module light panel described above.

[0027] The technical solution provided in this application, through the aforementioned structural configuration, allows the display surface of the module's lamp panel to be covered not only with an electrochromic functional layer but also with a solid-state liquid crystal layer. The electrochromic functional layer enables adjustment of blackness (transmittance). This is because the electrochromic functional layer possesses optical properties (reflectivity, transmittance, absorptivity, etc.) of its internal materials, which undergo stable and reversible color changes under the influence of an applied electric field. This manifests as reversible changes in color and transparency. Specifically, in the de-energized state, the materials within the electrochromic functional layer undergo no electrochemical reaction, remaining in a colored state, absorbing or reflecting visible light, resulting in an overall dark or opaque appearance that blocks vision and light (transmittance can be as low as below 1%). However, in the energized state, upon applying a low voltage (typically 1–5V), the materials within the electrochromic functional layer undergo an electrochemical reaction (such as ion insertion / deintercalation), entering a fading state, significantly increasing transmittance (up to 80% or more), achieving a transparent effect. Therefore, this characteristic can be utilized to achieve continuous changes in blackness (transmittance) (e.g., from completely transparent to completely black) by adjusting the voltage, thereby gradually adjusting the display brightness of the module's LED panel. This eliminates the need for adjusting the brightness of the LED panel by changing the output current of the driver IC or increasing the duty cycle, thus reducing the power consumption of the display module's LED panel. When the internal material of the electrochromic functional layer has a memory effect, the electrochromic functional layer can maintain its current state after power is turned off, further reducing the power consumption of the display module's LED panel. The surface haze can be adjusted by setting a solid-state liquid crystal layer. This is because the liquid crystal molecules in the solid-state liquid crystal layer have different degrees of deflection under different electric fields. Specifically, in the power-off state, the liquid crystal molecules are disordered, and external incident light is scattered or refracted when passing through, causing the solid-state liquid crystal layer to appear blurred and hazy (opaque), with the haze at its maximum. When energized, the liquid crystal molecules align in an orderly manner under the influence of an electric field, allowing light to pass through in a straight line along the molecular orientation. The liquid crystal layer becomes transparent, significantly increasing light transmittance (approximately 70%–85%) and reducing haze. Therefore, this characteristic can be utilized to adjust surface haze by controlling the deflection of liquid crystal molecules through energization. Controlling the deflection of liquid crystal molecules consumes energy only during state switching; in a stable state, it consumes almost no power (static power consumption is close to zero), thus significantly reducing the power consumption of the display module's backlight panel. In summary, this technical solution allows the display module's backlight panel to be configured with different combinations of surface haze and blackness (transmittance) according to different application scenarios, better meeting the needs of multi-functional and multi-scenario displays. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the display screen film material in the embodiments of this application;

[0030] Figure 2 for Figure 1 The diagram shows the structural configuration of the display film material in use.

[0031] Figure 3 for Figure 1 The diagram shows a top view of the substrate main layer of the display film material.

[0032] Figure 4 for Figure 1 A top view schematic diagram of the third transparent electrode layer of the display film material shown;

[0033] Figure 5 for Figure 1 A top view schematic diagram of the second transparent electrode layer of the display film material shown;

[0034] Figure 6 for Figure 1 A top view schematic diagram of the first transparent electrode layer of the display screen film material;

[0035] Figure 7 This is a schematic diagram of the first structure of the module light board in the embodiments of this application;

[0036] Figure 8 This is a schematic diagram of a second structure of the module light panel in an embodiment of this application;

[0037] Figure 9 for Figure 8 A schematic diagram of the display surface of the main body of the module light panel shown;

[0038] Figure 10 for Figure 8 A schematic diagram of the driving surface of the main body of the module light board shown. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0041] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, the user should consider such a combination of technical solutions to be non-existent and not within the scope of protection claimed in this application.

[0042] As is well known, electrochromic functional layers refer to the phenomenon where the optical properties (reflectivity, transmittance, absorptivity, etc.) of their internal materials undergo stable and reversible color changes under the influence of an applied electric field. This manifests as reversible changes in color and transparency. Specifically, in the de-energized state, the material undergoes no electrochemical reaction, remaining in a colored state, absorbing or reflecting visible light, and appearing dark or opaque, blocking vision and light (transmittance can be as low as below 1%). In the energized state, when a low voltage (typically 1–5V) is applied, the material undergoes an electrochemical reaction (such as ion insertion / deintercalation), entering a fading state, significantly increasing transmittance (up to 80% or more), achieving a transparent effect. Furthermore, the blackness (transmittance) can be continuously varied by adjusting the voltage (e.g., from completely transparent to completely black), achieving gradual adjustment. Electrically adjustable privacy glass (also known as "smart privacy glass") is a functional material that switches between optical states controlled by electrical signals. It can freely switch between a "transparent state" and a "privacy state," and is widely used in high-end office partitions, automotive privacy glass, smart homes, and other scenarios. Its core principle is based on controlling the orientation of liquid crystal molecules in the liquid crystal layer to adjust the optical transmittance. Specifically, when the glass is de-energized, the liquid crystal molecules in the liquid crystal layer are in a disordered state. When incident light passes through, it is scattered or refracted, resulting in a blurred and hazy (opaque) state with maximum haze. When the glass is energized, the liquid crystal molecules are arranged in an orderly manner under the influence of the electric field. Incident light can pass through in a straight line along the orientation of the liquid crystal molecules, and the liquid crystal layer becomes transparent, significantly increasing the transmittance (approximately 70%–85%) and reducing the haze. Therefore, based on the above characteristics of the electrochromic functional layer and the liquid crystal layer, the technical solution of this application is proposed.

[0043] In one embodiment, such as Figure 1 and Figure 2 As shown, this application embodiment provides a display screen film 10, which includes a first transparent electrode layer 11, an electrochromic functional layer 12, a second transparent electrode layer 13, a solid-state liquid crystal layer 14, a third transparent electrode layer 15, a substrate body layer 16, and a film functional layer 17 stacked sequentially. At least one first electrode connector 181 is provided on the side of the first transparent electrode layer 11, at least one second electrode connector 182 is provided on the side of the second transparent electrode layer 13, and at least one third electrode connector 183 is provided on the side of the third transparent electrode layer 15.

[0044] It is understood that the display film 10 of this application embodiment is mainly used in the module lamp board of display modules such as Mini LED modules, to be attached to the display surface 21 of the module lamp board, to cover and protect the display surface 21 while optimizing various functions of the display surface 21 such as display effect. The at least one first electrode connector 181 mentioned above is mainly used to connect the first high-potential electrode so that the first transparent electrode layer 11 is connected to the first high potential. The at least one second electrode connector 182 mentioned above is mainly used to connect the ground electrode so that the second transparent electrode layer 13 is grounded. The at least one third electrode connector 183 mentioned above is mainly used to connect the second high-potential electrode so that the third transparent electrode layer 15 is connected to the second high potential. Thus, when the first transparent electrode layer 11 is connected to the first high potential and the second transparent electrode layer 13 is grounded, a corresponding first electric field can be formed between the first transparent electrode layer 11 and the second transparent electrode layer 13, and the electrochromic functional layer 12 is under the first electric field. When the third transparent electrode layer 15 is connected to the second high potential and the second transparent electrode layer 13 is grounded, a corresponding second electric field can be formed between the third transparent electrode layer 15 and the second transparent electrode layer 13, causing the solid-state liquid crystal layer 14 to be under the second electric field. The aforementioned substrate body layer 16 combined with the film material functional layer 17 can be used to realize the common film material functions of existing display film materials 10, including but not limited to brightness reduction, anti-glare, and anti-fingerprint functions.

[0045] The internal material of the aforementioned electrochromic functional layer 12 can be either an inorganic or organic electrochromic material. When it is an inorganic electrochromic material, nickel oxide (NiO) is preferred. NiO is a p-type semiconductor and, as an anodic electrochromic material, when no current is applied, the material is in an oxidized state, with nickel vacancies or excess oxygen in its crystal structure, giving it a black appearance. When current is applied, a reduction reaction occurs under the influence of an electric field, changing the valence state of nickel ions and altering the material's absorption characteristics for visible light, thus making it transparent. When it is an organic electrochromic material, polyaniline, polythiophene and its derivatives, and violet derivatives are preferred. Polyaniline exhibits different colors in different oxidation states; specifically, when in a fully oxidized state, polyaniline is black. When no current is applied, the material remains in this oxidation state and appears black; after current is applied, an electrochemical reduction reaction occurs, and as the degree of reduction increases, polyaniline gradually becomes transparent. Polythiophene derivatives: such as copolymers of 3,3-bis((alkyloxy)methyl)-3,4-dihydro-2H-thiophene and benzothiadiazole, through rational molecular design and synthesis, these polymers can achieve full-spectrum absorption of visible light when no electricity is applied, appearing black; after electricity is applied, the electron cloud distribution on the polymer molecular chain changes, the conjugated structure changes, and the light absorption capacity decreases, thus exhibiting a transparent state. Violet derivatives: Most fully oxidized violet derivatives are pale yellow and are in a stable state. However, after certain treatments (such as doping with specific substances), they may appear black when no electricity is applied. When electricity is applied, a negative voltage is applied to cause a reduction reaction, changing its oxidation state. The change in molecular structure leads to changes in the absorption and scattering characteristics of light, thus becoming transparent. However, its transparent state is usually colored (such as blue-violet, green, etc., depending on the substituents), but compared to black, the light transmittance is greatly increased, which can be regarded as a "transparent" state. The internal material of the electrochromic functional layer 12 in the embodiments of this application is generally preferably an inorganic electrochromic material.

[0046] In this way, when the display film 10 in this embodiment is applied to the display of the module lamp board of the display module, the display surface 21 of the module lamp board of the display module is covered not only with the electrochromic functional layer 12, but also with the solid liquid crystal layer 14. Because the electrochromic functional layer 12 has optical properties (reflectivity, transmittance, absorptivity, etc.) of its internal materials, it undergoes stable and reversible color changes under the action of an external electric field. This manifests as reversible changes in color and transparency. Specifically, in the power-off state, the material within the electrochromic functional layer 12 undergoes no electrochemical reaction, remains in a colored state, absorbs or reflects visible light, and appears dark or opaque, blocking vision and light (transmittance can be as low as 1%). However, in the power-on state, after applying a low voltage (typically 1-5V), the material within the electrochromic functional layer 12 undergoes an electrochemical reaction (such as ion insertion / deintercalation), enters a fading state, and the transmittance significantly increases (up to 80% or more), achieving a transparent effect. Therefore, this characteristic can be utilized to achieve continuous changes in blackness (transmittance) (e.g., from completely transparent to completely black) by adjusting the voltage, thereby gradually adjusting the display brightness of the module lamp board. This eliminates the need for adjusting the brightness of the module lamp board by changing the output current of the driver IC or increasing the duty cycle, thus reducing the power consumption of the display module lamp board. When the internal material of the electrochromic functional layer 12 has a memory effect, the electrochromic functional layer 12 can maintain its current state after power is turned off, further reducing the power consumption of the display module lamp board. By setting the solid-state liquid crystal layer 14, the surface haze can be adjusted. This is because the liquid crystal molecules of the solid-state liquid crystal layer 14 have the characteristic of different deflection degrees under different electric field control. Specifically, when the power is off, the liquid crystal molecules are disordered, and the incident light is scattered or refracted when it passes through, causing the solid-state liquid crystal layer 14 to appear in a blurry and hazy (opaque) state, with the haze being at its maximum. When energized, the liquid crystal molecules align in an orderly manner under the influence of an electric field, allowing light to pass through in a straight line along the molecular orientation. The liquid crystal layer becomes transparent, significantly increasing light transmittance (approximately 70%–85%) and reducing haze. Therefore, this characteristic can be utilized to adjust surface haze by controlling the deflection of liquid crystal molecules through energization. Controlling the deflection of liquid crystal molecules consumes energy only during state switching; in a stable state, it consumes almost no power (static power consumption is close to zero), thus significantly reducing the power consumption of the display module's lamp panel. In summary, the technical solution of this application embodiment allows the display module's lamp panel to be configured with different combinations of surface haze and blackness (light transmittance) according to different application scenarios, better meeting the needs of the display module for multi-functional and multi-scenario displays.

[0047] In some examples, such as Figure 1As shown, the functional layer 17 of the membrane material includes an anti-glare layer and / or an anti-fingerprint layer. The anti-glare layer is a coating structure containing rough particles or an organic adhesive layer with scattering microstructures, and the anti-fingerprint layer is a coating of fluorinated silane material. Thus, through the above structural configuration, when the functional layer 17 includes an anti-glare layer, whether it is a coating structure containing rough particles or an organic adhesive layer with scattering microstructures, the surface of the anti-glare layer can have a microscopic rough structure. These structures can scatter light on its surface, dispersing the originally concentrated reflected light into different directions, thereby reducing the intensity and concentration of reflected light, reducing specular reflection, and allowing the observer to see the object or screen more clearly from different angles, avoiding glare interference caused by strong light reflection. At the same time, this scattering effect will not excessively affect light transmission, ensuring a certain level of light transmittance. When the functional layer 17 of the membrane material includes an anti-fingerprint layer, the fluorinated silane material coating has low surface energy, which makes the surface of the anti-fingerprint coating have strong hydrophobicity and oleophobicity. When a finger touches the surface of the anti-fingerprint coating, fingerprint components such as sweat and oil are difficult to adhere to and spread on its surface. Instead, they form a water droplet structure that is easy to roll off the membrane surface or wiped away, thereby achieving the anti-fingerprint effect.

[0048] It is understood that the fluorinated silane material coating in this example can be a nanoscale coating formed by vapor deposition of fluorinated silanes (such as PFTS) onto the surface of the previous film, or a coating formed by coating a solution of fluorinated acrylates, siloxanes, etc. onto the surface of the previous film and curing it with UV.

[0049] In some examples, such as Figure 1 As shown, the substrate main layer 16 is made of a transparent substrate or a semi-transparent black substrate, and the light transmittance of the semi-transparent black substrate is 30% to 70%. Thus, through the above structural setting, compared with the use of a transparent substrate, this example can reduce the intensity of external incident light illuminating the background color of the module light panel by using the structural design of a semi-transparent black substrate, thereby weakening the problem of background color showing.

[0050] It is understood that the display film 10 in this example can also be combined to form a semi-transparent black substrate combined with an electrochromic functional layer 12 to modulate the blackness (transmittance). With the transmittance (transmittance of T%) of the semi-transparent black substrate remaining constant, since the transmittance of the electrochromic functional layer 12 is adjustable from 1% to 80%, the transmittance of the entire display film 10 can be adjusted from T%*1% to T%*85%. For example, when the transmittance of the semi-transparent black substrate is 70%, and the electrochromic functional layer 12 is not powered, the transmittance of its display film 10 is 0.7%, which eliminates the influence of the background color difference of the module lamp board and gives it better ink color consistency. When the electrochromic functional layer 12 is powered, the liquid crystal molecules of the electrochromic functional layer 12 are controlled to deflect to the limit. At this time, the transmittance of the display film 10 is 59.5%, which can improve the display brightness of the module lamp board. At the same time, due to the control of the liquid crystal molecule deflection, power is only consumed when the state is switched, and almost no power is consumed in the stable state (static power consumption is close to zero), so it will not increase the power consumption of the module lamp board.

[0051] In some examples, such as Figure 1 As shown, the electrochromic functional layer 12 includes an ion storage layer, an ion conductor layer, and an electrochromic layer stacked sequentially. Thus, this structural arrangement effectively ensures the electrochromic function of the electrochromic functional layer 12.

[0052] Understandably, the electrochromic layer (EC layer) in this example is specifically used to achieve color changes. It is preferably made of WO3 (tungsten trioxide), NiO (nickel oxide), or organic electrochromic materials, and is generally prepared by sputtering, with a thickness of approximately 50–200 nm. The ion conductor layer (IC layer) in this example is specifically used to conduct ions, such as a solid electrolyte (specifically LiPON, generally prepared by vacuum evaporation, with a thickness of approximately 100–500 nm) or a gel electrolyte (specifically PEO-Li, generally prepared by coating, with a thickness of approximately 500 nm–2 μm). The ion storage layer (IS layer) in this example is specifically used to store and release ions, such as complementary electrochromic materials (paired with the EC layer) or inert storage materials (LiCoO2, lithium cobalt oxide), generally prepared by sputtering, with a thickness of approximately 10–300 nm.

[0053] In some examples, such as Figure 1As shown, the solid liquid crystal layer 14 is a solid encapsulating adhesive layer mixed with liquid crystal material. It can be understood that the liquid crystal material in this example can specifically be a nematic liquid crystal. There are various common nematic liquid crystal materials, such as some organic compounds containing functional groups like cyano (-CN) and ester (-COO-), such as p-cyanobiphenyl and p-cyanophenylcyclohexane. These functional groups can affect the polarity, intermolecular forces, and orientation characteristics of liquid crystal molecules, thereby enabling the material to exhibit good liquid crystal performance. The solid encapsulating adhesive in this example can specifically be epoxy resin. Thus, through the above structural setup, the liquid crystal material and epoxy resin are mixed at a mass ratio of 3:7-5:5 (using a vacuum mixer), and a solid liquid crystal layer 14 with a thickness of 5-30 μm is prepared through a polymerization reaction (such as UV curing, thermal curing, etc.). The epoxy resin solid polymer network "encapsulates" the liquid crystal microdroplets, preventing their macroscopic flow and ensuring the morphological stability of the liquid crystal material. When an electric field is applied, the epoxy resin solid polymer acts as a supporting framework, allowing the electric field to be uniformly transmitted to the liquid crystal droplets, thus preventing the liquid crystal phase from failing due to flow.

[0054] In some examples, such as Figure 1 As shown, the first transparent electrode layer 11, the second transparent electrode layer 13, and the third transparent electrode layer 15 are all ITO transparent electrode layers. Thus, through the above structural arrangement, it can be ensured that the first transparent electrode layer 11, the second transparent electrode layer 13, and the third transparent electrode layer 15 all have high light transmittance.

[0055] In some examples, such as Figure 1 As shown, the display film 10 also includes an adhesive layer 19, which is stacked on the surface of the first transparent electrode layer 11 away from the electrochromic functional layer 12. Thus, with this structural arrangement, the display film 10 of this example can be easily attached and fixed to the display surface 21 of the corresponding module lamp board using the built-in adhesive layer 19, thereby improving its ease of use.

[0056] It is understood that the adhesive layer 19 in this example is preferably an OCA adhesive layer.

[0057] In some examples, such as Figures 2 to 6The substrate main layer 16 has at least three first lugs 161 on its side. The third transparent electrode layer 15 has at least one second lug 151 on its side, and each second lug 151 corresponds to one first lug 161 to form a third electrode connector 183. The second transparent electrode layer 13 has at least one third lug 131 on its side, and each third lug 131 corresponds to one first lug 161. A first insulating layer (not shown) is also provided between each third lug 131 and its corresponding first lug 161 to form a second electrode connector 182. The first transparent electrode layer 11 has at least one fourth lug 111 on its side, and each fourth lug 111 corresponds to one first lug 161. A second insulating layer (not shown) is also provided between each fourth lug 111 and its corresponding first lug 161 to form a first electrode connector 181. Thus, through the above structural arrangement, a first electrode connector 181 with a lug structure, a second electrode connector 182 with a lug structure, and a third electrode connector 183 with a lug structure can be formed respectively. When the display screen film 10 in this example is attached to the display surface 21 of the lamp board body 20, the first electrode connector 181 with a lug structure, the second electrode connector 182 with a lug structure, and the third electrode connector 183 with a lug structure can be bent respectively, so that the first electrode connector 181 is electrically connected to the first high-potential electrode on the driving surface 22 of the lamp board body 20, the second electrode connector 182 is electrically connected to the ground electrode on the driving surface 22 of the lamp board body 20, and the third electrode connector 183 is electrically connected to the second high-potential electrode on the driving surface 22 of the lamp board body 20.

[0058] It is understood that the first electrode connector 181, the second electrode connector 182, and the third electrode connector 183 in this example are not limited to one. For example, when it is necessary to control the first transparent electrode layer 11 in sections, at least two first electrode connectors 181 can be provided. Preferably, the first electrode connector 181, the second electrode connector 182, and the third electrode connector 183 should be respectively provided on the side edges of different sides of the display film 10. When the second electrode connector 182 is bent, its surface facing the sidewall of the display film 10, especially the part corresponding to the first transparent electrode layer 11, needs to be insulated to avoid the risk of short circuit. When the third electrode connector 183 is bent, its surface facing the sidewall of the display film 10, especially the part corresponding to the second transparent electrode layer 13 and the part corresponding to the first transparent electrode layer 11, needs to be insulated to avoid the risk of short circuit. In this example, the first insulating layer can be formed by forming corresponding lug structures at corresponding positions on the solid liquid crystal layer 14. In this example, the second insulating layer can be formed by forming a corresponding lug structure in the corresponding position of the solid liquid crystal layer 14 and / or forming a corresponding lug structure in the corresponding position of the electrochromic functional layer 12.

[0059] In one embodiment, such as Figure 7 As shown, this application embodiment also provides a module lamp board 1, which includes a lamp board body 20 and a display screen film 10. The display screen film 10 is the display screen film 10 of the above embodiment. The side surface of the display screen film 10 away from the film functional layer 17 is attached to the display surface 21 of the lamp board body 20. The first transparent electrode layer 11 is electrically connected to the first high-potential electrode on the driving surface 22 of the lamp board body 20 through the first electrode connector 181. The second transparent electrode layer 13 is electrically connected to the ground electrode on the driving surface 22 of the lamp board body 20 through the second electrode connector 182. The third transparent electrode layer 15 is electrically connected to the second high-potential electrode on the driving surface 22 of the lamp board body 20 through the third electrode connector 183. Thus, since the display module in this embodiment uses the display film material 10 in the above embodiment for its module light board 1, it can set different surface haze and blackness (transmittance) combinations according to different application scenarios, so as to better meet the needs of the module light board 1 for multi-functional and multi-scenario display, and significantly reduce the power consumption of the module light board 1 of the display module.

[0060] It is understood that the high potential connected to the first high potential electrode of the module light board 1 in this embodiment can be further set to be adjustable from 0 to 5V. When the module light board 1 is not powered or is in static power consumption (i.e., the module light board 1 does not display and is only in standby power consumption), the voltage between the electrochromic functional layers 12 is 0V. At this time, the light transmittance is the minimum and black is displayed. When the module light board 1 is lit, the voltage is set to 5V. At this time, the light transmittance is the maximum and bright color is displayed. If the screen brightness is too high, an intermediate value can be selected to match it. The display brightness of the module light board 1 can be arbitrarily adjusted by adjusting the voltage.

[0061] In one embodiment, such as Figure 8 As shown, this application embodiment also provides a modular light panel 1, which includes a light panel body 20, a first transparent electrode layer 11, an electrochromic functional layer 12, a second transparent electrode layer 13, a solid-state liquid crystal layer 14, a third transparent electrode layer 15, and a functional film layer 30 stacked sequentially. The first transparent electrode layer 11 is electrically connected to at least one first high-potential electrode of the light panel body 20, the second transparent electrode layer 13 is electrically connected to at least one ground electrode of the light panel body 20, and the third transparent electrode layer 15 is electrically connected to at least one second high-potential electrode of the light panel body 20.

[0062] It is understood that the module lamp board 1 of this application embodiment has a generally similar structure to the module lamp board 1 of the above embodiment. The difference is that the module lamp board 1 of the above embodiment mainly adopts the method of attaching the display screen film 10 of the above embodiment to the display surface 21 of the lamp board body 20, so that the first electrode connector 181 is electrically connected to the first high potential electrode of the driving surface 22 of the lamp board body 20, the second electrode connector 182 is electrically connected to the ground electrode of the driving surface 22 of the lamp board body 20, and the third electrode connector 183 is electrically connected to the lamp board body 20. The second high-potential electrode on the driving surface 22 of the body 20 is electrically connected to form the module lamp board 1. In contrast, the module lamp board 1 of this application embodiment is formed by directly stacking the first transparent electrode layer 11, the electrochromic functional layer 12, the second transparent electrode layer 13, the solid liquid crystal layer 14, the third transparent electrode layer 15 and the functional film layer 30 on the display surface 21 of the lamp board body 20 in sequence. That is, the electrochromic functional layer 12 and the solid liquid crystal layer 14 of this application embodiment are directly fabricated on the module lamp board 1, rather than an independent display film material 10 structure.

[0063] In this way, the module light panel 1 of this embodiment is covered not only with an electrochromic functional layer 12 on its display surface 21, but also with a solid-state liquid crystal layer 14. Because the electrochromic functional layer 12 has optical properties (reflectivity, transmittance, absorptivity, etc.) of its internal materials, it undergoes stable and reversible color changes under the action of an external electric field. This manifests as reversible changes in color and transparency. Specifically, in the power-off state, the material within the electrochromic functional layer 12 undergoes no electrochemical reaction, remains in a colored state, absorbs or reflects visible light, and appears dark or opaque, blocking vision and light (transmittance can be as low as 1% or less). However, in the power-on state, after applying a low voltage (typically 1–5V), the material within the electrochromic functional layer 12 undergoes an electrochemical reaction (such as ion insertion / deintercalation), enters a fading state, and the transmittance significantly increases (up to 80% or more), achieving a transparent effect. Therefore, this characteristic can be utilized to achieve continuous changes in blackness (transmittance) (e.g., from completely transparent to completely black) by adjusting the voltage, thereby gradually adjusting the display brightness of the module lamp board. This eliminates the need for adjusting the brightness of the module lamp board by changing the output current of the driver IC or increasing the duty cycle, thus reducing the power consumption of the display module lamp board. When the internal material of the electrochromic functional layer 12 has a memory effect, the electrochromic functional layer 12 can maintain its current state after power is turned off, further reducing the power consumption of the display module lamp board. By setting the solid-state liquid crystal layer 14, the surface haze can be adjusted. This is because the liquid crystal molecules of the solid-state liquid crystal layer 14 have the characteristic of different deflection degrees under different electric field control. Specifically, when the power is off, the liquid crystal molecules are disordered, and the incident light is scattered or refracted when it passes through, causing the solid-state liquid crystal layer 14 to appear in a blurry and hazy (opaque) state, with the haze being at its maximum. When energized, the liquid crystal molecules align in an orderly manner under the influence of an electric field, allowing light to pass through in a straight line along the molecular orientation. The liquid crystal layer becomes transparent, significantly increasing light transmittance (approximately 70%–85%) and reducing haze. Therefore, this characteristic can be utilized to adjust surface haze by controlling the deflection of liquid crystal molecules through energization. Controlling the deflection of liquid crystal molecules consumes energy only during state switching; in a stable state, it consumes almost no power (static power consumption is close to zero), thus significantly reducing the power consumption of the display module's lamp panel. In summary, the technical solution of this application embodiment allows the display module's lamp panel to be configured with different combinations of surface haze and blackness (light transmittance) according to different application scenarios, better meeting the needs of the display module for multi-functional and multi-scenario displays.

[0064] In some examples, such as Figure 8 and Figure 9As shown, the display surface 21 of the lamp panel body 20 is provided with at least one first high-potential electrode connection point 211. The first transparent electrode layer 11 is stacked on the display surface 21 and is electrically connected to the corresponding first high-potential electrode through the high-potential electrode connection point 211. In this way, the electrical connection between the first transparent electrode layer 11 and the first high-potential electrode on the lamp panel body 20 can be well realized through the above structural arrangement.

[0065] It is understandable that since the display surface 21 of the lamp board body 20 is generally provided with an encapsulating adhesive layer to encapsulate and protect the pixels on the display surface 21, the corresponding high-potential electrode connection point 211 can be exposed by drilling holes in the encapsulating adhesive layer so that it can be electrically connected to the first transparent electrode layer 11.

[0066] In some examples, such as Figure 8 and Figure 10 As shown, a grounding electrode metal edge 221 is provided on the first side edge of the driving surface 22 of the lamp panel body 20. A second transparent electrode layer 13 is stacked on the electrochromic functional layer 12 and extends to the driving surface 22 via a sidewall corresponding to the first side edge, covering the grounding electrode metal edge 221 for electrical connection. A first transparent electrode layer 11 is stacked on the display surface 21 of the lamp panel body 20, and the side of the first transparent electrode layer 11 corresponding to the first side edge is insulated from the second transparent electrode layer 13. Thus, through the above structural arrangement, the electrical connection between the second transparent electrode layer 13 and the grounding electrode (i.e., the grounding electrode metal edge 221) on the lamp panel body 20 can be effectively achieved.

[0067] It is understood that the driving surface 22 in this example is generally a rectangular structure, which may include four side edges, namely the first side edge, the second side edge, the third side edge, and the fourth side edge. Specifically, the insulation between the side of the first transparent electrode layer 11 corresponding to the first side edge and the second transparent electrode layer 13 mentioned in this example can be achieved by coating the side of the first transparent electrode layer 11 corresponding to the first side edge with an insulating layer, or by adopting a clearance arrangement on the side of the first transparent electrode layer 11 corresponding to the first side edge, that is, the first transparent electrode layer 11 does not cover the portion of the display surface 21 corresponding to the first side edge, so that the first transparent electrode layer 11 can form a certain clearance structure with respect to the second transparent electrode layer 13 on the sidewall of the module lamp board 1 to avoid the risk of short circuit.

[0068] In some examples, such as Figure 8 and Figure 10As shown, at least one second high-potential electrode connection point 222 is provided on the second side edge of the driving surface 22 of the lamp panel body 20. A third transparent electrode layer 15 is stacked on the solid-state liquid crystal layer 14 and extends to the driving surface 22 via a sidewall corresponding to the second side edge, covering all the second high-potential electrode connection points 222, so as to electrically connect with the corresponding second high-potential electrodes through the second high-potential electrode connection points 222. A first transparent electrode layer 11 is stacked on the display surface 21 of the lamp panel body 20, and the side of the first transparent electrode layer 11 corresponding to the second side edge is insulated from the third transparent electrode layer 15. A second transparent electrode layer 13 is stacked on the electrochromic functional layer 12, and the side of the second transparent electrode layer 13 corresponding to the second side edge is insulated from the third transparent electrode layer 15. Thus, through the above structural arrangement, the electrical connection between the third transparent electrode layer 15 and the second high-potential electrodes on the lamp panel body 20 can be effectively achieved.

[0069] It is understood that the second side edge in this example can be arranged adjacent to or opposite to the first side edge mentioned above. Specifically, the insulation arrangement between the side of the first transparent electrode layer 11 corresponding to the second side edge and the third transparent electrode layer 15 can be achieved by coating the side of the first transparent electrode layer 11 corresponding to the second side edge with an insulating layer, or by adopting a clearance arrangement, meaning the first transparent electrode layer 11 does not cover the portion of the display surface 21 corresponding to the second side edge. This allows the first transparent electrode layer 11 to form a certain clearance structure with respect to the third transparent electrode layer 15 on the sidewall of the module lamp panel 1, thus preventing the risk of short circuits. In this example, the insulation between the second transparent electrode layer 13 and the side corresponding to the second side edge and the third transparent electrode layer 15 can be specifically achieved by coating the side of the second transparent electrode layer 13 corresponding to the second side edge with an insulating layer, or by adopting a clearance arrangement between the second transparent electrode layer 13 and the side corresponding to the second side edge, that is, the second transparent electrode layer 13 does not cover the part of the electrochromic functional layer 12 corresponding to the second side edge, so that the second transparent electrode layer 13 can form a certain clearance structure for the third transparent electrode layer 15 on the side wall of the module lamp board 1 to avoid the risk of short circuit.

[0070] In some examples, such as Figure 8 As shown, the functional film layer is either a transparent functional film or a semi-transparent black functional film, with the light transmittance of the semi-transparent black functional film being 30% to 70%. Thus, compared to using a transparent functional film, using a semi-transparent black functional film can reduce the intensity of external incident light illuminating the background color of the module lamp panel 1, thereby mitigating the problem of background color visibility.

[0071] It is understood that the module light panel 1 in this example can also be combined to form a semi-transparent black functional film combined with an electrochromic functional layer 12 to modulate the blackness (transmittance). With the transmittance (transmittance of T%) of the semi-transparent black functional film remaining constant, since the transmittance of the electrochromic functional layer 12 is adjustable from 5% to 85%, the transmittance of the entire display screen film 10 can be adjusted from T%*1% to T%*85%. For example, when the transmittance of the semi-transparent black functional film is 70%, and the electrochromic functional layer 12 is not energized, the transmittance of its display film 10 is 0.7%, eliminating the influence of the background color difference of the module lamp board 1 and giving it better ink color consistency. When the electrochromic functional layer 12 is energized, the liquid crystal molecules of the electrochromic functional layer 12 are controlled to deflect to the limit. At this time, the transmittance of the display film 10 is 59.5%, which can improve the display brightness of the module lamp board 1. At the same time, due to the control of the liquid crystal molecule deflection, power is only consumed when the state is switched, and almost no power is consumed in the stable state (static power consumption is close to zero), so it will not increase the power consumption of the module lamp board 1.

[0072] In some examples, such as Figure 8 As shown, the electrochromic functional layer 12 includes an ion storage layer, an ion conductor layer, and an electrochromic layer stacked sequentially. Thus, this structural arrangement effectively ensures the electrochromic function of the electrochromic functional layer 12.

[0073] Understandably, the electrochromic layer (EC layer) in this example is specifically used to achieve color changes. It is preferably made of WO3 (tungsten trioxide), NiO (nickel oxide), or organic electrochromic materials, and is generally prepared by sputtering, with a thickness of approximately 50–200 nm. The ion conductor layer (IC layer) in this example is specifically used to conduct ions, such as a solid electrolyte (specifically LiPON, generally prepared by vacuum evaporation, with a thickness of approximately 100–500 nm) or a gel electrolyte (specifically PEO-Li, generally prepared by coating, with a thickness of approximately 500 nm–2 μm). The ion storage layer (IS layer) in this example is specifically used to store and release ions, such as complementary electrochromic materials (paired with the EC layer) or inert storage materials (LiCoO2, lithium cobalt oxide), generally prepared by sputtering, with a thickness of approximately 10–300 nm.

[0074] In some examples, such as Figure 8As shown, the solid liquid crystal layer 14 is a solid encapsulating adhesive layer mixed with liquid crystal material. It can be understood that the liquid crystal material in this example can specifically be a nematic liquid crystal. There are various common nematic liquid crystal materials, such as some organic compounds containing functional groups like cyano (-CN) and ester (-COO-), such as p-cyanobiphenyl and p-cyanophenylcyclohexane. These functional groups can affect the polarity, intermolecular forces, and orientation characteristics of liquid crystal molecules, thus enabling the material to exhibit good liquid crystal performance. The solid encapsulating adhesive in this example can specifically be epoxy resin. Thus, through the above structural setup, the liquid crystal material and epoxy resin are mixed at a mass ratio of 3:7-5:5 (using a vacuum mixer), and a solid liquid crystal layer 14 with a thickness of 5-30 μm is prepared through a polymerization reaction (such as UV curing, thermal curing, etc.). The epoxy resin solid polymer network "encapsulates" the liquid crystal microdroplets, preventing macroscopic flow and ensuring the morphological stability of the liquid crystal material. When an electric field is applied, the epoxy resin solid polymer acts as a supporting framework, allowing the electric field to be uniformly transmitted to the liquid crystal droplets, thus preventing the liquid crystal phase from failing due to flow.

[0075] In some examples, such as Figure 8 As shown, the first transparent electrode layer 11, the second transparent electrode layer 13, and the third transparent electrode layer 15 are all ITO transparent electrode layers. Thus, through the above structural arrangement, it can be ensured that the first transparent electrode layer 11, the second transparent electrode layer 13, and the third transparent electrode layer 15 all have high light transmittance.

[0076] In one embodiment, this application also provides a display module, which may specifically include a module light panel 1, which is the module light panel 1 in the above embodiment.

[0077] It is understood that the display module in this application embodiment can be used for standalone display or can be specifically applied to a display module to form a corresponding display module by arranging several display modules in a certain manner. The display module in this application embodiment can adopt a bottom shell structure design or a bottom shell structure design. When it adopts a bottom shell structure design, in addition to including the module lamp board 1, it also includes a module bottom shell, which is installed on the surface of the module lamp board 1 away from the display surface 21.

[0078] Thus, since the display module in this embodiment adopts the module light board 1 in the above embodiment, it has the same function and technical effect as the above embodiment, which will not be repeated here.

[0079] Furthermore, the display modules of this application embodiment can be combined to form a large display screen for use in the cinema field. Current cinema DCI certification requires brightness levels of 48 nits and 300 nits, and some even require 48 nits, 300 nits, and 500 nits. However, conventional cinema large displays can only achieve brightness changes by adjusting the driving current. These current changes directly affect the RGB color coordinates, especially the G coordinate. Increasing brightness from 48 nits to 300 nits causes a blue shift in both R and G, with the G coordinate changing the most, resulting in a 3-6 nm decrease in the dominant wavelength and causing the color gamut to exceed the standard. In contrast, the large display screen formed by the display modules of this application embodiment can achieve brightness changes simply by adjusting the blackness (transmittance) of the electrochromic functional layer. The specific adjustment method is as follows:

[0080] 1. In the cinema application market, you can directly set corresponding adjustments for different states, such as:

[0081] 1. When the lights are on outside of movie viewing hours and the large display screen is not displaying anything, the haze adjustment is reduced and the blackness is increased (the light transmittance is reduced). At this time, the large display screen gives people the feeling of obsidian, which is high-end, elegant and classy.

[0082] 2. When the lights are on outside of movie viewing hours, the large screen displays content with reduced haze (to enhance display sharpness) and reduced blackness (to increase light transmittance). This is because there is lighting interference, and higher brightness is needed for the audience to see clearly and for details to be clear.

[0083] 3. During movie screenings, the lights will be turned off, and the screen will display content with increased haze (enhancing display softness) and decreased blackness (reducing light transmittance), making the display less glaring and improving viewing comfort.

[0084] II. In other indoor settings, it can be paired with an ambient adaptive brightness adjustment module, such as:

[0085] 1. When the sensor module has no illumination and the large display screen does not display content, the haze adjustment is reduced, the blackness is increased (the light transmittance is reduced), and the overall look is better;

[0086] 2. When there is no illumination from the sensor module and the large display screen is displaying content, the haze adjustment is increased to improve blackness (reduce light transmittance) and reduce visual fatigue.

[0087] 3. When the sensor module has illuminance and the large display screen does not display content, the haze adjustment changes according to the illuminance (the haze increases with the increase of illuminance), and the blackness is adjusted to the maximum (the light transmittance is the minimum). The stronger the ambient light, the more the color difference displayed on the large display screen can be seen. Increasing the haze will increase the scattering and reduce the amount of external light shining into the large display screen.

[0088] 4. When the sensor module is illuminated and the large display screen is displaying content, the haze adjustment changes according to the illuminance (the haze decreases as the illuminance increases), and the blackness (transmittance) adjustment changes according to the illuminance (the blackness decreases as the illuminance increases, and the transmittance increases). The stronger the ambient light, the stronger the impact on the display effect of the large display screen. Reducing the haze and increasing the transmittance can make the display of the large display screen sharper and clearer.

[0089] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A display screen film material, characterized in that, The display film material includes a first transparent electrode layer, an electrochromic functional layer, a second transparent electrode layer, a solid-state liquid crystal layer, a third transparent electrode layer, a substrate body layer, and a film material functional layer stacked in sequence. At least one first electrode connector is provided on the side of the first transparent electrode layer, at least one second electrode connector is provided on the side of the second transparent electrode layer, and at least one third electrode connector is provided on the side of the third transparent electrode layer.

2. The display screen film material according to claim 1, characterized in that, The functional layer of the membrane material includes an anti-glare layer and / or an anti-fingerprint layer. The anti-glare layer is a coating structure containing coarse particles or an organic adhesive layer with a scattering microstructure. The anti-fingerprint layer is a coating of a fluorinated silane material; and / or, The main substrate layer is made of a transparent substrate or a semi-transparent black substrate, wherein the light transmittance of the semi-transparent black substrate is 30% to 70%; and / or, The electrochromic functional layer comprises an ion storage layer, an ion conductor layer, and an electrochromic layer stacked sequentially; and / or, The solid liquid crystal layer is a solid encapsulating adhesive layer mixed with liquid crystal material; and / or, The first transparent electrode layer, the second transparent electrode layer, and the third transparent electrode layer are all ITO transparent electrode layers.

3. The display screen film material according to claim 1, characterized in that, The display film material also includes an adhesive layer, which is stacked on the surface of the first transparent electrode layer away from the electrochromic functional layer.

4. The display screen film material according to any one of claims 1-3, characterized in that, The side of the substrate body layer is provided with at least three first lugs; The third transparent electrode layer has at least one second lug on its side, and each second lug corresponds to one first lug, so as to form a third electrode connector in cooperation with the corresponding first lug; The second transparent electrode layer has at least one third lug on its side, and each third lug corresponds to one first lug. A first insulating layer is also provided between each third lug and the corresponding first lug to form a second electrode connector in cooperation with the corresponding first lug. The first transparent electrode layer has at least one fourth lug on its side, and each fourth lug corresponds to one first lug. A second insulating layer is also provided between each fourth lug and the corresponding first lug to form a first electrode connector in cooperation with the corresponding first lug.

5. A modular light panel, characterized in that, The device includes a lamp panel body and a display screen film, wherein the display screen film is the display screen film as described in any one of claims 1-4, the side of the display screen film away from the functional layer of the film is attached to the display surface of the lamp panel body, and the first transparent electrode layer is electrically connected to a first high-potential electrode on the driving surface of the lamp panel body through the first electrode connector, the second transparent electrode layer is electrically connected to a ground electrode on the driving surface of the lamp panel body through the second electrode connector, and the third transparent electrode layer is electrically connected to a second high-potential electrode on the driving surface of the lamp panel body through the third electrode connector.

6. A modular light panel, characterized in that, The light panel includes a main body, a first transparent electrode layer, an electrochromic functional layer, a second transparent electrode layer, a solid-state liquid crystal layer, a third transparent electrode layer, and a functional film layer, which are stacked in sequence. The first transparent electrode layer is electrically connected to at least one first high-potential electrode of the main body, the second transparent electrode layer is electrically connected to at least one ground electrode of the main body, and the third transparent electrode layer is electrically connected to at least one second high-potential electrode of the main body.

7. The module light panel according to claim 6, characterized in that, The display surface of the lamp panel body is provided with at least one first high-potential electrode connection point. The first transparent electrode layer is stacked on the display surface and is electrically connected to the corresponding first high-potential electrode through the first high-potential electrode connection point.

8. The module light panel according to claim 6, characterized in that, A grounding electrode metal edge is provided on the first side edge of the driving surface of the lamp panel body; The second transparent electrode layer is stacked on the electrochromic functional layer and extends to the driving surface through the sidewall corresponding to the first side edge, covering the ground electrode metal edge to make electrical connection with the ground electrode metal edge; The first transparent electrode layer is stacked on the display surface of the lamp panel body, and the side of the first transparent electrode layer corresponding to the first side edge is insulated from the second transparent electrode layer.

9. The module light board according to claim 6, characterized in that, At least one second high-potential electrode connection point is provided on the second side edge of the driving surface of the lamp panel body. The third transparent electrode layer is stacked on the solid liquid crystal layer and extends to the driving surface through the sidewall corresponding to the second side edge, covering all the second high potential electrode connection points, so as to make electrical connection with the corresponding second high potential electrode through the second high potential electrode connection points; The first transparent electrode layer is stacked on the display surface of the lamp panel body, and the side of the first transparent electrode layer corresponding to the second side edge is insulated from the third transparent electrode layer; The second transparent electrode layer is stacked on the electrochromic functional layer, and the side of the second transparent electrode layer corresponding to the second side edge is insulated from the third transparent electrode layer.

10. A display module, characterized in that, Includes the module light panel as described in any one of claims 5-9.

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