Light adjusting device

Abstract

The utility model provides a light adjusting device, and relates to the technical field of electrochromism. The light adjusting device comprises a light adjusting module which comprises an upper substrate, a lower substrate and an electrochromic film, the upper substrate is located on the light inlet side of the light adjusting module, and the lower substrate is located on the light outlet side of the light adjusting module; the control circuit module is connected in series with the electrochromic film; and the light energy induction battery module is connected in series or in parallel with the electrochromic film through the control circuit module. The light energy induction battery module generates changing voltage according to the light intensity, the changing voltage provides energy for the light adjusting device and acts on the electrochromic film after voltage adjustment through the control circuit module, automatic adjustment of the color of the electrochromic film along with light is achieved, the light intensity of the light penetrating through the light adjusting device is changed, and the color of the electrochromic film is changed. The user experience can be improved, the light adjusting efficiency is improved, and the use cost of the light adjusting device is low.

Description

Technical Field

[0001] The present application relates to the technical field of electrochromic technology, and in particular to a light adjustment device. Background Art

[0002] Electrochromic film is a material that can undergo stable and reversible color changes under the action of an external electric field. Electrochromic film has significant advantages in energy saving, environmental protection, and aesthetics. For example, electrochromic film is widely used in smart windows, glasses, and smart watches.

[0003] When the electrochromic film is used, a power source is usually added to both ends of the electrochromic film, and a corresponding control circuit is set to control the voltage applied to the electrochromic film. After the user senses the light change, he manually adjusts the color control gear in the electrochromic film device. The control circuit in the light adjustment device receives the gear information and adjusts the voltage value of the electrochromic film in the device. The color of the electrochromic film changes, thereby achieving the adjustment of light intensity.

[0004] During the light adjustment process, the user can only adjust the color of the electrochromic film by manually adjusting the gear, resulting in a poor experience and slow manual adjustment speed. Utility Model Content

[0005] In view of the above problems, an embodiment of the present application provides a light adjustment device, which can realize automatic adjustment of the color of the electrochromic film, thereby improving the user experience and the adjustment efficiency of the device. The device is small in size and can be easily used in a small space. In addition, the device is environmentally friendly and has a low cost during application.

[0006] In order to achieve the above objectives, the present application provides the following technical solutions:

[0007] A light adjustment device, comprising:

[0008] The light adjustment module comprises an upper substrate, a lower substrate and an electrochromic film, wherein the upper substrate is located at a light incident side of the light adjustment module and the lower substrate is located at a light emitting side of the light adjustment module;

[0009] A control circuit module connected in series with the electrochromic film;

[0010] The light energy sensing battery module is connected in series or in parallel with the electrochromic module through the control circuit module.

[0011] In a possible implementation, the light energy sensing battery module is externally connected to the light adjustment module, and the light energy sensing battery module and the light adjustment module do not overlap.

[0012] In a possible implementation, the electrochromic film includes a first electrode layer, an electrochromic layer and a second electrode layer stacked in sequence, the positive electrode of the light energy sensing battery module is electrically connected to the first electrode layer through the control circuit module, and the negative electrode of the light energy sensing battery module is electrically connected to the second electrode layer through the control circuit module.

[0013] In a possible implementation, the electrochromic film further includes an ion storage layer and an ion conduction layer, and the ion storage layer and the ion conduction layer are sequentially arranged between the first electrode layer and the electrochromic layer.

[0014] In a possible implementation, the light energy sensing cell module is a crystalline silicon cell or a thin film cell.

[0015] In a possible implementation manner, the control circuit module is preset with a protection voltage, and when the protection voltage is reached, the control circuit module limits the maximum output voltage;

[0016] The protection voltage is less than or equal to the maximum voltage that the electrochromic film can withstand.

[0017] In a possible implementation, the control circuit module includes a color control unit, which adjusts the voltage output to the electrochromic film according to the voltage value of the light energy sensing battery module to control the color of the electrochromic film.

[0018] In a possible implementation, the external power source is connected in series or in parallel with the electrochromic film through a control circuit module.

[0019] In a possible implementation, the light adjustment module is a flexible module.

[0020] The embodiment of the present application provides a light adjustment device, including a light adjustment module, a control circuit module and a light energy sensing battery module. Among them, the light adjustment module includes an upper substrate, a lower substrate and an electrochromic film, the upper substrate is located on the light incident side of the light adjustment module, the lower substrate is located on the light exit side of the light adjustment module, and the electrochromic film is located between the upper substrate and the lower substrate. The control circuit module is connected in series with the electrochromic film, and the light energy sensing battery module is connected in series or in parallel with the electrochromic film through the control circuit module. When light is irradiated on the light adjustment device, the light energy sensing battery module receives the energy of the light and generates a voltage at both ends thereof. When the light changes, the light energy sensing battery module generates a changing voltage. The changing voltage provides energy for the light adjustment device and the changing voltage is modulated by the control circuit module and acts on the electrochromic film, causing the voltage difference of the electrochromic film to change, the color of the electrochromic film to change, and the light transmittance of the electrochromic film to change, so as to realize the automatic adjustment of the color of the electrochromic film. This improves the user experience and also improves the adjustment efficiency of the light adjustment device. Utilizing light energy to provide energy for light adjustment for light adjustment devices is more environmentally friendly and can reduce the cost of use, thus enriching the application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of a light adjustment device in the prior art;

[0023] Figure 2 A schematic diagram of the structure of a light adjustment device provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the structure of another light adjustment device provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the structure of the electrochromic film provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of the structure of a crystalline silicon cell provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the structure of a thin film battery provided in an embodiment of the present application.

[0028] Description of reference numerals:

[0029] 110 - upper substrate; 120 - electrochromic film; 130 - lower substrate; 140 - manual control circuit; 150 - power module; 121 - first electrode layer; 122 - ion storage layer; 123 - ion conduction layer; 124 - electrochromic layer; 125 - second electrode layer;

[0030] 20-light adjustment module; 200-upper substrate; 210-electrochromic film; 220-lower substrate; 211-first electrode layer; 212-ion storage layer; 213-ion conduction layer; 214-electrochromic layer; 215-second electrode layer;

[0031] 30-light energy sensing battery module; 310-crystalline silicon battery; 320-thin film battery; 311-front electrode; 312-anti-reflection layer; 313-N-type material layer; 314-P-type material layer; 315-back electrode; 321-metal gate electrode; 322-window layer; 323-transition layer; 324-light absorption layer; 325-metal back electrode layer;

[0032] 40-Control circuit module. DETAILED DESCRIPTION

[0033] In the prior art, photochromic materials are a relatively mature solution for adjusting light. The advantage of photochromic materials is that they can automatically adjust their color and change their transmittance as light changes, but their disadvantage is that the response speed is relatively slow, and it usually takes several minutes to complete the change. The response speed of electrochromic films is greatly improved compared to photochromic materials. Electrochromic films need to apply different electric fields to produce corresponding different shades of color.

[0034] Figure 1 Schematic diagram of the structure of a light adjustment device in the prior art. Figure 1 As shown, the light adjustment device includes an upper substrate 110, an electrochromic film 120, a lower substrate 130, a manual control circuit 140 and a power module 150. The upper substrate 110, the electrochromic film 120 and the lower substrate 130 are stacked as a whole, and the electrochromic film 120 is connected in series with the manual control circuit 140 and the power module 150 to form a current loop. Among them, the electrochromic film 120 includes a first electrode layer 121, an ion storage layer 122, an ion conduction layer 123, an electrochromic layer 124 and a second electrode layer 125 stacked in sequence. The positive electrode of the power module 150 is connected in series with the manual control circuit 140 and then electrically connected to the first electrode layer 121, and the negative electrode of the power module 150 is electrically connected to the second electrode layer 125.

[0035] When the light changes and the light is adjusted, the gear position on the manual control circuit 140 needs to be manually adjusted. The manual control circuit 140 adjusts the voltage difference between the first electrode layer 121 and the second electrode layer 125. The ions of the ion storage layer 122 migrate into or out of the electrochromic layer 124 through the ion conduction layer 123, and the electrochromic layer 124 changes color, and the intensity of the light passing through the light adjustment device changes. During the light adjustment process, the manual control circuit 140 needs to be manually adjusted. The manual adjustment speed is slow. When the light changes frequently, frequent adjustments are required, which makes the user experience poor.

[0036] In view of this, an embodiment of the present application provides a light adjustment device, including a light adjustment module, a light energy sensing battery module and a control circuit module. Among them, the light adjustment module includes an upper substrate, a lower substrate and an electrochromic film, the upper substrate is located on the light incident side of the light adjustment module, the lower substrate is located on the light exit side of the light adjustment module, and the electrochromic film is located between the upper substrate and the lower substrate. The light energy sensing battery module is connected in series with the control circuit module, and the light energy sensing battery module is connected in series or in parallel with the electrochromic module through the control circuit module. When light is irradiated on the light adjustment device, the light energy sensing battery module receives the energy of the light and generates a voltage at both ends thereof. When the light changes, the light energy sensing battery module generates a changing voltage. The changing voltage provides energy for the light adjustment device and the generated voltage is modulated by the control circuit module and acts on the electrochromic film, causing the voltage difference of the electrochromic film to change, the color of the electrochromic film to change, and the light transmittance of the electrochromic film to change, so as to realize the automatic adjustment of the color of the electrochromic film. This improves the user experience and also improves the adjustment efficiency of the light adjustment device. Utilizing light energy to provide energy for light adjustment for light adjustment devices is more environmentally friendly and can reduce the cost of use, thus enriching the application scenarios.

[0037] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of this application.

[0038] Figure 2 This is a schematic diagram of the structure of a light adjustment device provided in an embodiment of the present application. Figure 2 As shown, an embodiment of the present application provides a light adjustment device, which includes a light adjustment module 20, a light energy sensing battery module 30 and a control circuit module 40.

[0039] Among them, the light adjustment module 20 is the core component of the light adjustment device, and the adjustment function is achieved by adjusting the color of the light adjustment module 20. The control circuit module 40 and the electrochromic film 210 are connected in series to form a loop, and the light energy sensing battery module 30 is connected in parallel with the electrochromic film 210 through the control circuit module 40. The light energy sensing battery module 30 can generate electrical energy through line irradiation and supply power to the control circuit module 40 and the electrochromic film 210. The control circuit module 40 mainly controls the on and off of the closed circuit and can output the corresponding voltage through modulation according to the voltage generated by the light energy sensing battery module 30.

[0040] In the embodiment of the present application, when light is irradiated on the light energy sensing battery module 30, the light intensity changes, and the light energy sensing battery module 30 generates a voltage that changes accordingly. The control circuit module 40 modulates the voltage and outputs a corresponding voltage to act on the electrochromic film 210 connected in series therewith, and the color of the electrochromic film 210 changes, and the light intensity passing through the light adjustment module 20 changes. The light can be adjusted automatically without manual operation, which improves the user experience. The light intensity can be adjusted in real time, and the adjustment efficiency of the light adjustment device is relatively high.

[0041] Figure 3 This is a schematic diagram of the structure of another light adjustment device provided in an embodiment of the present application. Figure 3 As shown, the control circuit module 40 is connected in series with the electrochromic film 210, and the light energy sensing battery module 30 is connected in series with the electrochromic film 210 through the control circuit module 40. The light energy sensing battery module 30, the electrochromic film 210 and the control circuit module 40 are connected in series to form a closed circuit. The light energy sensing battery module 30 can generate electrical energy through light irradiation, and supply power to the control circuit module 40 and the electrochromic film 210. The control circuit module 40 mainly controls the on and off of the closed circuit and can adjust the voltage in the closed circuit.

[0042] In the embodiment of the present application, when light is irradiated on the light energy sensing battery module 30, the light energy changes, and the light energy sensing battery module 30 generates a voltage that changes accordingly. The control circuit module 40 adjusts the voltage across the control circuit module 40 to a corresponding voltage according to the voltage in the closed circuit, and the voltage of the electrochromic film 210 also changes accordingly, the color of the electrochromic film 210 changes, and the light passing through the light adjustment module 20 changes. The light can be adjusted automatically without manual operation, which improves the user experience. The light intensity can be adjusted in real time, and the adjustment efficiency of the light adjustment device is relatively high.

[0043] Reference Figure 2 and Figure 3As shown, the light energy sensing battery module is externally connected to the light regulating module, and the light energy sensing battery module 30 does not overlap with the light regulating module 20. In other words, the light energy sensing battery module 30 and the light regulating module 20 do not block each other. The light energy sensing battery module 30 can directly receive the irradiation of light, and the light can also directly pass through the light regulating module 20. Such a configuration can improve the power generation efficiency of the light energy sensing battery module 30 and improve the sensitivity of voltage changes, and will not interfere with the regulating function of the light regulating device.

[0044] As an embodiment, the light adjustment device further includes an outer frame (not shown in the figure), which is arranged around the outer periphery of the light adjustment module 20, and provides support for the light adjustment module. For example, the light adjustment device can be applied to products such as glasses, windows or smart watches, and the outer frame can be used as a glasses frame, a window frame and a smart watch frame, and the light energy sensing battery module 30 is adjusted in the outer frame according to the actual space.

[0045] At this time, the light energy sensing battery module 30 can be arranged on the outer frame. In this way, the light energy sensing battery module 30 and the light adjustment module 20 do not interfere with each other, and the integration of the light adjustment device can be improved, and the application scenarios of the light adjustment device can be expanded.

[0046] Reference Figure 2 and Figure 3 As shown, the light adjustment module 20 includes an upper substrate 200, an electrochromic film 210 and a lower substrate 220. The upper substrate 200, the electrochromic film 210 and the lower substrate 220 are stacked together to form an integrated structure.

[0047] The upper substrate 200 is located at the light incident side of the light adjustment module 20, and the light enters from the upper substrate 200. The upper substrate 200 can be made of a high light transmittance material to ensure that the light can smoothly penetrate the light adjustment module 20, so as not to affect the adjustment function of the light adjustment module 20. The upper substrate 200 is located at the outermost side of the light adjustment module 20 and also plays a protective role, which can prevent the electrochromic film 210 from being physically damaged.

[0048] After passing through the upper substrate 200, the light enters the electrochromic film 210. The electrochromic film 210 is a core component with conductive properties in the light adjustment module 20. If a variable voltage is applied to both ends of the electrochromic film 210, the color of the electrochromic film 210 will change, that is, the light adjustment module 20 achieves color adjustment through the electrochromic film 210.

[0049] After passing through the electrochromic film 210, the light is emitted from the lower substrate 220, which is located at the light-emitting side of the light-adjusting module 20. The lower substrate 220 can also be made of a high-transmittance material to ensure that the light can smoothly penetrate the entire light-adjusting module 20 so as not to affect the light-adjusting function of the light-adjusting module 20. The lower substrate 220 also plays a protective role, which can prevent the electrochromic film 210 from being physically damaged.

[0050] After the light is incident from the upper substrate 200 , it passes through the electrochromic film 210 . The voltage across the electrochromic film 210 is adjusted by the light energy sensing battery module 30 and the control circuit module 40 . The color of the electrochromic film 210 changes, and the light is emitted from the lower substrate 220 . The light intensity changes accordingly when passing through the light adjustment module 20 .

[0051] Figure 4 This is a schematic diagram of the structure of the electrochromic film provided in the embodiment of the present application. Figure 4 As shown, the electrochromic film 210 may include a first electrode layer 211 , an electrochromic layer 214 , and a second electrode layer 215 stacked in sequence.

[0052] The positive electrode of the light energy sensing battery module 30 is electrically connected to the first electrode layer 211 of the electrochromic film 210 through the control circuit module 40, and the negative electrode of the light energy sensing battery module 30 is electrically connected to the second electrode layer 215 of the electrochromic film 210 through the control circuit module 40. The voltage generated by the light energy sensing battery module 30 is modulated by the control circuit module 40 and acts on the first electrode layer 211 and the second electrode layer 215. The first electrode layer 211 of the electrochromic film 210 will accumulate positive charges, and the second electrode layer 215 will accumulate negative charges. A pressure difference is formed between the first electrode layer 211 and the second electrode layer 215, and the electrochromic layer 214 changes color.

[0053] Exemplarily, the first electrode layer 211 and the second electrode layer 215 are both transparent materials containing a conductive coating. The first electrode layer 211 and the second electrode layer 215 provide support and conductivity for the electrochromic film 210. For example, the coating material of the first electrode layer 211 and the second electrode layer 215 can be tin oxide or fluorine-doped tin oxide, which has excellent conductivity, low price and high transparency.

[0054] The electrochromic layer 214 serves as the core layer of the electrochromic film 210. The electrochromic layer 214 can be made of a composite material of organic and inorganic materials.

[0055] As an implementation manner, the electrochromic film further includes an ion storage layer 212 and an ion conduction layer 213 , and the ion storage layer 212 and the ion conduction layer 213 are sequentially disposed between the first electrode layer 211 and the electrochromic layer 214 .

[0056] The ion storage layer 212 is used to maintain the electrical balance inside the electrochromic film 210. The ion storage layer 212 is used to store electrons and ions but does not have a color-changing property. The ion storage layer 212 can be made of an electrode material with a high optical transmittance. Of course, in some cases, the ion storage layer 212 may not be provided in the electrochromic film. In other words, the electrochromic film includes a first electrode layer 211, an ion conduction layer 213, an electrochromic layer 214, and a second electrode layer 215.

[0057] The ion conducting layer 213 allows the electrolyzed ions to migrate into the electrochromic layer 214, and the ion conducting layer 213 transports ions for the first electrode layer 211 and the second electrode layer 215. For example, the ion conducting layer 213 can be made of materials such as lithium-containing metal oxides with high transparency. The ion conducting layer 213 has the characteristics of high light transmittance, excellent ion conductivity, and stable properties at high temperatures.

[0058] As mentioned above, the electrochromic film 210 needs the light energy sensing battery module 30 to provide a modulated voltage to achieve color change. The light energy sensing battery module 30 in the embodiment of the present application generates electricity when exposed to light, and provides electricity for the light adjustment device, which is energy-saving and environmentally friendly, and can reduce the cost of use.

[0059] The light adjustment device can also use the light energy sensing battery module 30 and the control circuit module 40 to achieve follow-up adjustment of the light. For example, the stronger the light intensity, the more electric energy the light energy sensing battery module 30 generates, the greater the pressure difference across the electrochromic film 210, the darker the color of the electrochromic film 210, the lower the light transmittance of the electrochromic film 210, and the weaker the light intensity after passing through the light adjustment module 20.

[0060] In addition, the battery capacity of the light energy sensing battery module 30 needs to be determined according to the size of the electrochromic film 210, and the battery capacity of the light energy sensing battery module 30 affects the size of the light energy sensing battery module 30. If the size of the light energy sensing battery module 30 is too large, the power generated will also be too large, which will cause energy waste. Alternatively, if the size of the light energy sensing battery module 30 is too small, the power generated will also be too small, resulting in the inability to drive the electrochromic film 210 to change color.

[0061] Since the power generation efficiency of the light energy sensing battery module 30 is not high or the size of the light energy sensing battery module 30 is limited by space when used, a light adjustment device provided in an embodiment of the present application is generally suitable for use in areas with smaller areas. For example, the light adjustment device can be used in glasses, airplane window glass, building window glass and other areas.

[0062] Figure 5 This is a schematic diagram of the structure of a crystalline silicon cell provided in an embodiment of the present application. Figure 5 As shown, as an implementation, the light energy sensing cell module 30 may be a crystalline silicon cell 310. The crystalline silicon cell 310 has a high photoelectric conversion efficiency and good stability.

[0063] The crystalline silicon cell 310 includes a front electrode 311, an anti-reflection layer 312, an N-type material layer 313, a P-type material layer 314 and a rear electrode 315, which are arranged in sequence. The front electrode 311 and the rear electrode 315 serve as the negative electrode and the positive electrode of the crystalline silicon cell 310, respectively. The anti-reflection layer 312 reduces or eliminates the reflected light on the optical surface of the light energy sensing battery module 30, thereby increasing the amount of light exposure to the crystalline silicon cell 310 and improving the power generation efficiency of the crystalline silicon cell 310. The N-type material layer 313 is usually a silicon wafer doped with phosphorus to form an N-type semiconductor. The P-type material layer 314 is usually a silicon wafer doped with boron to form a P-type semiconductor. The N-type material layer 313 and the P-type material layer 314 form a PN junction.

[0064] When light irradiates the PN junction of the crystalline silicon cell 310, photons with sufficient energy excite electron-hole pairs in the P-type material layer 314 and the N-type material layer 313. Under the action of the internal electric field, these electrons and holes are separated under the action of the space charge electric field, and the photogenerated electrons in the P-type material layer 314 move toward the N-type material layer 313, and the photogenerated holes in the N-type material layer 313 enter the P-type material layer 314, thereby generating electrical energy for the crystalline silicon cell 310. If an external load is connected, the current flows from the P-type material layer 314 through the load to the N-type material layer 313.

[0065] Figure 6 This is a schematic diagram of the structure of a thin film battery provided in an embodiment of the present application. Figure 6 As shown, as another embodiment, the light energy sensing battery module 30 may be a thin film battery 320. The thin film battery 320 has a small mass and an extremely thin thickness, and can be bent and applied to the surface of various objects.

[0066] The thin film battery 320 may adopt a substrate structure, and the thin film battery 320 includes a metal gate electrode 321 , a window layer 322 , a transition layer 323 , a light absorption layer 324 , and a metal back electrode layer 325 which are arranged in sequence.

[0067] The metal gate electrode 321 and the metal back electrode layer 325 are the negative electrode and the positive electrode of the thin film battery 320 .

[0068] The window layer 322 is composed of a high-resistance zinc oxide layer and a low-resistance zinc oxide layer. The transition layer 323 is made of an N-type semiconductor material. The high-resistance zinc oxide layer in the window layer 322 and the transition layer 323 form an N-type semiconductor.

[0069] The light absorption layer 324 is of P-type semiconductor property and can be made of materials such as copper indium gallium selenide.

[0070] The high-resistance zinc oxide in the window layer 322 forms an N-type semiconductor with the transition layer 323 and forms a PN junction with the P-type semiconductor of the light absorption layer 324. When light is irradiated onto the PN junction formed by the window layer 322, the transition layer 323 and the light absorption layer 324, the photons in the light absorption layer 324 will stimulate electron transitions, generating electron-hole pairs, which are rapidly separated to form photocurrents, with electrons moving toward the metal gate electrode 321 and hole pairs moving toward the metal back electrode layer 325, generating voltage across the thin-film battery 320. The thin-film battery 320 can provide electrical energy to the load by connecting it to an external load.

[0071] On this basis, an anti-reflection film layer (not shown in the figure) can be added to the light-incident side of the thin-film battery 320. Adding the anti-reflection film layer can reduce or eliminate the reflected light on the optical surface of the thin-film battery 320, so that more light can enter the light energy sensing battery module 30, thereby increasing the amount of light entering the light energy sensing battery module 30 and improving the energy efficiency of the light energy sensing battery module 30. The use of thin-film batteries can provide electrochromic drive for curved surfaces and flexible materials.

[0072] The control circuit module 40 can control the on and off of the closed circuit. When the control circuit module 40 is closed, the circuit is in a closed state, and the light adjustment device can achieve the adjustment function. When the control circuit module 40 is disconnected, the light adjustment device cannot achieve the adjustment function.

[0073] When the control circuit module 40 is disconnected, there is no pressure difference between the two ends of the electrochromic film 210, and the electrochromic film 210 is transparent and does not change color. Even if light passes through the electrochromic film 210, the color of the electrochromic film 210 will not change, and the light adjustment device cannot achieve the adjustment function.

[0074] In addition, the control circuit module 40 can also play a role in voltage regulation and voltage stabilization to ensure the color stability of the light adjustment device. For example, the control circuit module 40 can also be miniaturized and encapsulated at the edge of the light adjustment module 20 or in the outer frame of the light adjustment device to improve the integration of the light adjustment device and expand the application scenarios of the light adjustment device.

[0075] In addition, the control circuit module 40 is also preset with a protection voltage, which is used to protect the electrochromic film 210 to prevent the electrochromic film 210 from being damaged due to excessive voltage applied to the electrochromic film 210, thereby extending the life of the electrochromic film 210.

[0076] The electrochromic film 210 can work within a certain voltage range. A voltage exceeding the maximum voltage that the electrochromic film 210 can withstand may cause structural damage to the electrochromic film 210 or cause the color changing performance to deteriorate. In order to prevent such problems, the protection voltage cannot exceed the maximum voltage that the electrochromic film 210 can withstand. Therefore, the protection voltage preset in the control circuit module 40 is less than or equal to the maximum voltage that the electrochromic film 210 can withstand.

[0077] When the electrochromic film 210 reaches the protection voltage, the control circuit module 40 will limit the maximum output voltage to maintain the voltage difference between the two ends of the electrochromic film 210 within the operating voltage range to ensure that the electrochromic film 210 does not suffer structural damage. For example, when the electrochromic film 210 reaches the protection voltage, the control circuit module 40 will limit the maximum output voltage, and the color of the electrochromic film 210 will always remain the darkest and the light transmittance will be the lowest.

[0078] The control circuit module 40 also includes a color control unit (not shown in the figure), which can adjust the voltage of the control circuit module 40 to a corresponding voltage through an internal control logic module or an internal structure according to the voltage generated by the light energy sensing battery module 30, and the control circuit module 40 outputs a corresponding voltage to act on the electrochromic film 210 to control the color of the electrochromic film 210 to achieve a corresponding change and achieve a corresponding light intensity adjustment. This can meet the user's demand for automatic light adjustment.

[0079] Exemplarily, the color control unit first analyzes the light intensity at the time according to the size of the voltage generated by the light energy sensing battery module 30 (when the light is strong, the voltage potential energy generated by the light energy sensing battery module 30 is large, and when the light is weak, the voltage potential energy generated is small), and modulates the light intensity into the voltage required by the electrochromic film 210 under the corresponding light intensity. There is a corresponding relationship between the corresponding light intensity and the light intensity at the time. The control circuit module 40 outputs this voltage to act on the electrochromic film 210, and the color of the electrochromic film 210 changes to the corresponding color, thereby realizing the corresponding light intensity adjustment.

[0080] As an embodiment, the light adjustment device may further include an external power supply (not shown in the figure), which is connected in series or in parallel with the electrochromic film 210 through the control circuit module 40, and the external power supply provides a driving voltage for the color change of the electrochromic film 210. This allows the light adjustment device to be applied in a variety of scenarios. For example, in certain specific cases, when the size of the light energy sensing battery module 30 is limited by space and cannot provide the voltage required by the electrochromic film 210, an external power supply is added to the circuit, and the control circuit module 40 adjusts the driving voltage of the external power supply acting on the electrochromic film 210 through the control circuit module 40 according to the light conditions fed back by the light energy sensing battery module 30, the color of the electrochromic film 210 changes, and the light adjustment device can realize the adjustment function.

[0081] In some embodiments, the light adjustment module 20 can be a flexible module, and the light adjustment module 20 is the core component of the light adjustment device. Each layer of the light adjustment module 20 can be made of flexible materials, that is, the light adjustment module 20 is a flexible module. In this way, the flexibility of the light adjustment module 20 can be improved. With such a configuration, the light adjustment device can be applied to various scenes that require bending or stretching. For example, the light adjustment device can be applied to wearable devices, smart curved windows and other fields.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A light adjustment device, characterized in that: include: A light adjustment module, comprising an upper substrate, a lower substrate and an electrochromic film, wherein the upper substrate is located at a light incident side of the light adjustment module, and the lower substrate is located at a light exit side of the light adjustment module; A control circuit module connected in series with the electrochromic film; The light energy sensing battery module is connected in series or in parallel with the electrochromic film through the control circuit module.

2. The light adjustment device according to claim 1, characterized in that: The light energy sensing battery module is externally connected to the light regulating module, and the light energy sensing battery module and the light regulating module do not overlap.

3. The light adjustment device according to claim 1 or 2, characterized in that: The electrochromic film includes a first electrode layer, an electrochromic layer and a second electrode layer stacked in sequence, the positive electrode of the light energy sensing battery module is electrically connected to the first electrode layer through the control circuit module, and the negative electrode of the light energy sensing battery module is electrically connected to the second electrode layer through the control circuit module.

4. The light adjustment device according to claim 3, characterized in that: The electrochromic film further includes an ion storage layer and an ion conduction layer, and the ion storage layer and the ion conduction layer are sequentially arranged between the first electrode layer and the electrochromic layer.

5. The light adjustment device according to claim 1 or 2, characterized in that: The light energy sensing battery module is a crystalline silicon battery or a thin film battery.

6. The light adjustment device according to claim 1 or 2, characterized in that: The control circuit module is preset with a protection voltage, and when the protection voltage is reached, the control circuit module limits the maximum output voltage; Wherein, the protection voltage is less than or equal to the maximum voltage that the electrochromic film can withstand.

7. The light adjustment device according to claim 1 or 2, characterized in that: Also includes: The control circuit module includes a color control unit, which adjusts the voltage output to the electrochromic film according to the voltage value of the light energy sensing battery module to control the color of the electrochromic film.

8. The light adjustment device according to claim 1 or 2, characterized in that: Also includes: An external power source is connected in series with the electrochromic film through the control circuit module.

9. The light adjustment device according to claim 1 or 2, characterized in that: The light adjustment module is a flexible module.

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