Dimming diaphragm optical performance calibration system and method and vehicle

Abstract

The invention provides a dimming diaphragm optical performance calibration system and method and a vehicle, and belongs to the technical field of dimming glass. The dimming diaphragm optical performance calibration system comprises a plurality of dimming diaphragms and / or a dimming diaphragm with a plurality of partitions; the controller is connected with the dimming diaphragms and / or the partitions, and is used for generating a first voltage regulation instruction according to an optical performance difference value between the dimming diaphragms and / or the partitions and a preset calibration color, and issuing the first voltage regulation instruction to the corresponding dimming diaphragms and / or the partitions, the optical performance difference value between the multiple dimming diaphragms and / or the multiple partitions is smaller than a preset value. According to the invention, the voltage output of each controller channel between different pieces or different partitions of the corresponding dimming diaphragm can be accurately adjusted, so that the optical and appearance consistency of different dimming diaphragms under the same gear is realized, and the user experience is enhanced.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to the field of dimming glass technology, specifically to a dimming film optical performance calibration system, method, and vehicle. Background Technology

[0002] To enhance the user experience, laminated smart glass products offer segmented and zoned control across the entire adjustment range. Operators can independently select specific areas for dimming or set the glass to an intermediate state, thus increasing its adjustability beyond just two modes: fully transparent or completely dark. For example, in automotive applications, to maintain vehicle consistency, multiple smart glass panels are often installed throughout the vehicle, such as in the rear doors, rear quarter windows, rear sides, front sunroof, and rear sunroof.

[0003] To achieve multi-level adjustment, different voltages are set to control the transmittance or haze of the dimming glass in multiple stages (i.e., setting different levels). However, from the perspective of material properties, the main adjustment area of ​​the dimming glass is concentrated in a small, central voltage range. Therefore, even slight voltage fluctuations can cause significant differences in brightness or optical characteristics. Consequently, even when the controller is set to the same voltage level, the glass exhibits different brightness levels. The reasons for this phenomenon involve a combination of factors, including material formulation, manufacturing process, electrode design, diaphragm size, control logic, and control hardware precision. It is difficult to solve these technical problems through precise control across the entire industry chain. Summary of the Invention

[0004] To address the problems in the prior art, embodiments of the present invention provide a system, method, and vehicle for calibrating the optical performance of a dimming film, thereby resolving the issues existing in the prior art.

[0005] In a first aspect, the present invention proposes an optical performance calibration system for a dimming film, comprising:

[0006] Multiple dimming films and / or dimming films with multiple zones;

[0007] The controller, connected to multiple dimming films and / or multiple zones, is used to generate a first voltage adjustment command based on the optical performance difference between the dimming films and / or multiple zones and a preset calibration color, and to send the first voltage adjustment command to the corresponding dimming films and / or multiple zones so that the optical performance difference between the multiple dimming films and / or multiple zones is less than a preset value.

[0008] In some embodiments, the calibration color is one of the colors of any one of the multiple dimming films and / or the colors of any one of the multiple zones.

[0009] In some embodiments, there are multiple controllers, each controller being connected to at least one dimming diaphragm and / or at least one partition.

[0010] In some embodiments, there are multiple calibration colors, and the controller is also used to divide multiple dimming films and / or multiple partitions into multiple groups;

[0011] A second voltage adjustment command is generated based on the optical performance difference between multiple dimming films and / or multiple zones in the same group and any one of multiple calibrated colors; and

[0012] A second voltage adjustment command is issued to multiple dimming films and / or multiple zones in the same group so that the difference in optical performance between the multiple dimming films and / or multiple zones in the same group is less than a preset value.

[0013] In some embodiments, the number of calibrated colors is the same as the number of groups.

[0014] In some embodiments, the preset value is at least one of color difference value ≤2.0, haze difference value ≤2%, and transmittance difference value ≤2%.

[0015] Secondly, the present invention proposes a method for calibrating the optical performance of a dimming film, comprising:

[0016] Determine the optical performance difference between multiple dimming films and / or dimming films with multiple zones and the preset calibration color;

[0017] The controller generates a first voltage adjustment command based on the optical performance difference and sends the first voltage adjustment command to the corresponding multiple dimming films and / or multiple zones, so that the optical performance difference between the multiple dimming films and / or multiple zones is less than a preset value; wherein, the controller is connected to the multiple dimming films and / or multiple zones.

[0018] Optical performance differences include at least one of the following: color difference, haze difference, and transmittance difference between multiple dimming films and / or multiple zones.

[0019] In some embodiments, the preset value is at least one of color difference ≤ 2.0, haze difference ≤ 2%, and transmittance difference ≤ 2%.

[0020] Thirdly, the present invention proposes a dimming glass, including the above-mentioned dimming film optical performance calibration system and at least one piece of glass, the glass being disposed outside the dimming film; the calibration color is the color of any one of the at least one piece of glass.

[0021] Fourthly, the present invention provides a means of transportation comprising the dimming glass of the above embodiments.

[0022] The dimming film optical performance calibration system, method, dimming glass, and vehicle provided in this invention embodiment include: a dimming film optical performance calibration system comprising: multiple dimming films and / or dimming films having multiple partitions; a controller connected to the multiple dimming films and / or multiple partitions, configured to generate a first voltage adjustment command based on the optical performance difference between the dimming films and / or multiple partitions and a preset calibration color, and to issue the first voltage adjustment command to the corresponding dimming films and / or multiple partitions, so that the optical performance difference between the multiple dimming films and / or multiple partitions is less than a preset value.

[0023] The optical performance calibration system for dimming films provided by this invention can accurately adjust the voltage output of each controller channel between different dimming films or between different zones, thereby achieving optical and appearance consistency of different dimming films at the same dimming level, and thus enhancing the user experience. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0025] Figure 1 This is a schematic diagram of the dimming principle of polymer-dispersed liquid crystal dimming film in the prior art (the relationship between haze and voltage);

[0026] Figure 2 This is a schematic diagram of the dimming principle of liquid crystal dimming films in the prior art (the relationship between transmittance and voltage);

[0027] Figure 3 This is a schematic diagram of a dimming film optical performance calibration system provided in an embodiment of the present invention.

[0028] Figure 4 This is another structural schematic diagram of a dimming film optical performance calibration system provided in an embodiment of the present invention.

[0029] Figure 5 This is a schematic flowchart of a method for determining the color optical performance of a dimming film according to an embodiment of the present invention.

[0030] Figure 6 This is a schematic diagram of the optical performance calibration process for two dimming films provided in a specific embodiment of the present invention.

[0031] Figure 7This is a schematic diagram of the optical performance calibration process for two dimming films (one of which has multiple zones) provided in a specific embodiment of the present invention.

[0032] Figure 8 This is a schematic diagram of the optical performance calibration process for a single-piece multi-zone dimming film provided in a specific embodiment of the present invention.

[0033] Figure 9 This is a schematic diagram of the structure of the local dimming film provided in a specific embodiment of the present invention.

[0034] Figure 10 This is a schematic diagram of the physical structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this application are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or apparatuses. Without conflict, the embodiments and features in the embodiments of this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] See Figure 1 as well as Figure 2 In existing dimming glass technology, optical changes are generally achieved through voltage. Figure 1 This is a schematic diagram illustrating the dimming principle of a polymer-dispersed liquid crystal (PDLC) dimming film. Figure 2 This is a schematic diagram illustrating the dimming principle of a liquid crystal (LC) dimming film. From... Figure 1 as well as Figure 2As can be seen, the main adjustment area of ​​the dimming glass (dimming film) is concentrated in a small voltage range in the middle. Even slight voltage fluctuations can cause significant differences in brightness or optical properties. Furthermore, as previously discussed, there are many reasons for this, making it difficult to solve these technical problems through precise control across the entire industry chain. Based on this, see [link to relevant documentation]. Figure 3 This invention provides a system for calibrating the optical performance of a dimming film, the system comprising:

[0038] Multiple dimming films (dimming film 1, dimming film 2... dimming film n) and / or dimming films with multiple zones;

[0039] The controller is connected to multiple zones (the same applies hereinafter when there are dimming films with multiple zones), dimming film 1, dimming film 2... dimming film n respectively. It is used to generate multiple (n-1 + number of zones) first voltage adjustment commands based on the optical performance differences between the multiple zones, dimming film 1, dimming film 2... dimming film n-1 and a preset calibration color (here set to the color of dimming film n), and send the first voltage adjustment commands to the corresponding dimming film and / or zones, so that the optical performance differences between the multiple zones, dimming film 1, dimming film 2... dimming film n are less than the preset value (no optical performance difference).

[0040] It should be noted that in the above embodiments, the calibration color is the color of the dimming film n. However, in practice, the calibration color can be the color of any dimming film or the color of any zone, or even any color specified by the user. This invention is not limited to this.

[0041] It should be noted that, as a specific embodiment, the dimming film optical performance calibration system provided in this embodiment of the invention has only one dimming film (corresponding to the following...). Figure 8 (Example), but the dimming film has multiple zones (at least two zones).

[0042] In summary, the dimming film optical performance calibration system provided in this embodiment of the invention has the following three structures:

[0043] (1) Multiple dimming films; controller, connected to multiple dimming films, used to generate multiple corresponding first voltage adjustment commands based on multiple optical performance differences between the dimming films and preset calibration colors, and send the first voltage adjustment commands to the corresponding dimming films so that the optical performance differences between the multiple dimming films are less than the preset value.

[0044] (2) Multiple dimming films and at least one dimming film having multiple partitions; a controller, connected to the multiple dimming films and multiple partitions respectively, for generating multiple corresponding first voltage adjustment commands based on multiple optical performance differences between the dimming films and multiple partitions and a preset calibration color, and sending the first voltage adjustment commands to the corresponding dimming films and multiple partitions so that the optical performance differences between the multiple dimming films and multiple partitions are less than a preset value.

[0045] (3) At least one dimming film having multiple partitions; a controller connected to the multiple partitions, used to generate multiple first voltage adjustment commands based on the optical performance difference between the multiple partitions and a preset calibration color, and to send the first voltage adjustment commands to the corresponding multiple partitions so that the optical performance difference between the multiple partitions is less than a preset value.

[0046] This invention explains the aforementioned optical performance calibration system for dimming films in the following application scenario: With the increasing popularity of dimmable glass, more and more vehicles are adopting this technology. However, due to the aforementioned reasons (material formulation, process, electrode design, film size, control logic, and control hardware precision), there are differences in optical performance between different dimming films in a vehicle. In some cases, these differences are significant, negatively impacting both the visual impression of the vehicle from outsiders and the intensity difference of incoming light experienced by occupants. Therefore, the applicant provides the aforementioned optical performance calibration system for dimming films. This system utilizes the different characteristics of dimming films to precisely adjust the voltage output of each controller channel between different films or different zones of the corresponding dimming films, achieving optical or appearance consistency for different dimming films at the same dimming level, thus enhancing the user experience.

[0047] The optical performance calibration system for dimming films provided in this embodiment of the invention includes: multiple dimming films and / or dimming films having multiple partitions; a controller connected to the multiple dimming films and / or multiple partitions, configured to generate a first voltage adjustment command based on the optical performance difference between the dimming films and / or multiple partitions and a preset calibration color, and to issue the first voltage adjustment command to the corresponding dimming films and / or multiple partitions, so that the optical performance difference between the multiple dimming films and / or multiple partitions is less than a preset value.

[0048] The optical performance calibration system for dimming films provided by this invention can accurately adjust the voltage output of each controller channel between different dimming films and / or different zones, thereby achieving optical and appearance consistency of different dimming films and / or different zones at the same dimming level, enhancing the user experience.

[0049] In some embodiments of the present invention, see also Figure 3 The calibrated color is one of the colors of any dimming film among dimming film 1, dimming film 2... dimming film n and / or one of the colors of any partition among multiple partitions.

[0050] Specifically, users can specify the current color of any one of the multiple dimming films or the color of any one of the multiple zones as the calibration color, so that other dimming films can use this calibration color as the standard to perform optical performance difference compensation (optical performance difference correction).

[0051] In some embodiments of the present invention, there are multiple controllers, each controller being connected to at least one dimming diaphragm and / or at least one partition.

[0052] It is understandable that the number of controllers can be one or more. Correspondingly, the relationship between the controller and the dimming diaphragm and the multiple zones is 1:n or n:n. That is, the multiple dimming diaphragms and multiple zones can be multiple outputs of a single controller (Electronic Control Unit, ECU) or outputs that correspond one-to-one with ECUn.

[0053] In some embodiments of the present invention, see Figure 4 At least one dimming diaphragm (taking dimming diaphragm 1 containing multiple zones as an example) includes multiple zones (taking three zones as an example, zone 1, zone 2 and zone 3 as an example), the controller is connected to zone 1, zone 2 and zone 3 respectively, and the calibrated color is any one of the colors of zone 1, zone 2, zone 3, dimming diaphragm 2... dimming diaphragm n.

[0054] It should be noted that the controller can be connected to partition 1, partition 2 and partition 3 respectively, or it can be connected to the dimming film 1 as a whole, and then the light splitting film 1 splits the light to partition 1, partition 2 and partition 3. This invention is not limited thereto.

[0055] The aforementioned dimming films include, but are not limited to, Suspended Particle Device (SPD) dimming films, EC dimming films, Polymer Dispersed Liquid Crystal (PDLC) films, and Liquid Crystal (LC) dimming films.

[0056] In some embodiments of the present invention, there are multiple calibration colors, and the controller is also used to divide multiple dimming films and / or multiple partitions into multiple groups;

[0057] A second voltage adjustment command is generated based on the optical performance difference between multiple dimming films and / or multiple zones in the same group and any one of multiple calibrated colors; and

[0058] A second voltage adjustment command is issued to multiple dimming films and / or multiple zones in the same group so that the difference in optical performance between the multiple dimming films and / or multiple zones in the same group is less than a preset value.

[0059] To illustrate the above embodiments, let's consider a specific application scenario. For example, if a vehicle faces the sun on one side and faces away from the sun on the other, the intensity of light entering the vehicle from the outside will be uneven. The optical performance difference of the entire vehicle can be corrected by using different calibration colors for different areas. For instance, the optical performance difference of the windows facing the sun can be corrected using a first calibration color, so that the optical performance difference between the windows on that side is less than a preset value. Conversely, the optical performance difference of the windows facing away from the sun can be corrected using a second calibration color, so that the optical performance difference between the windows on that side is less than a preset value. However, there is still an optical performance difference between the windows facing the sun and those facing away from the sun. This difference can be adjusted by the current intensity of the sunlight and the angle at which the sunlight enters the vehicle, so that the light intensity felt by the occupants inside the vehicle is more balanced.

[0060] It is understood that in the above embodiments, the number of calibration colors is the same as the number of groups into which the multiple dimming films and / or multiple zones are divided. For example, if the multiple dimming films and / or multiple zones are divided into 2 groups (the side facing the sun is group 1 and the side facing away from the sun is group 2), then the number of calibration colors is also 2.

[0061] In some embodiments of the present invention, based on a large number of experiments and experience, the present invention also provides a method for determining the absence of optical performance differences (the difference in optical performance between multiple dimming films and / or multiple zones is less than a preset value): when at least two dimming films meet the following conditions, it is considered that there are no optical performance differences between these dimming films.

[0062] In some embodiments of the present invention, the preset value is at least one of color difference value ≤2.0, haze difference value ≤2%, and transmittance difference value ≤2%.

[0063] Color Difference (ΔE): A numerical value that quantitatively represents the degree of color difference between two dimming films. ΔE = 0 indicates that the two colors are completely identical. The larger the ΔE value, the more obvious the color difference is perceived by the human eye.

[0064] Haze: The percentage of scattered luminous flux (light rays deviating more than 2.5° from the incident direction) to the total transmitted luminous flux when passing through a dimming film. It measures the blurriness or lack of clarity of the dimming film. Low haze (e.g., <1%): Very clear and transparent, like optical glass. High haze (e.g., >30%): Semi-transparent and frosted; light diffuses as it passes through, causing objects behind it to appear blurry.

[0065] Transmittance: The percentage of luminous flux transmitted through a dimming film compared to the incident luminous flux. It measures the transmittance of a dimming film, i.e., how much light can pass through. Depending on the type of light being measured, it can be categorized as follows:

[0066] Total Transmittance (Tt): The sum of all transmitted light.

[0067] Parallel light transmittance: The proportion of transmitted light whose direction remains unchanged (scattering angle less than 0.5°).

[0068] Dispersed Light Transmittance: The percentage of transmitted light that is scattered.

[0069] Visible Light Transmittance (Tvis or VLT): Specifically refers to the transmittance in the visible light wavelength range of 380nm-780nm.

[0070] In some embodiments of the present invention, the present invention also provides a dimming glass, the glass comprising: the above-mentioned dimming film optical performance calibration system and multiple glass sheets, each glass sheet being disposed outside each dimming film (i.e., the dimming film being disposed within the interlayer of the glass to enable the glass to have dimming function); the calibration color is the color of any one of the multiple glass sheets.

[0071] In some embodiments of the present invention, the present invention also provides a means of transportation including the aforementioned dimming glass.

[0072] The optical performance calibration system for dimming films provided in this embodiment of the invention includes: multiple dimming films and / or dimming films having multiple partitions; a controller connected to the multiple dimming films and / or multiple partitions, configured to generate a first voltage adjustment command based on the optical performance difference between the dimming films and / or multiple partitions and a preset calibration color, and to issue the first voltage adjustment command to the corresponding dimming films and / or multiple partitions, so that the optical performance difference between the multiple dimming films and / or multiple partitions is less than a preset value.

[0073] The optical performance calibration system for dimming films provided by this invention can accurately adjust the voltage output of each controller channel between different dimming films or between different zones, thereby achieving optical and appearance consistency of different dimming films at the same level and enhancing the user experience.

[0074] In some embodiments of the present invention, see Figure 5 Furthermore, a method for calibrating the optical performance of a dimming film applied to the aforementioned dimming film optical performance calibration system is provided, comprising the following steps:

[0075] Step 100: Determine the optical performance difference between multiple dimming films and / or dimming films with multiple zones and the preset calibration color, respectively;

[0076] First, the brightness or optical (transmittance or haze) of multiple dimming films is identified by a preset visual recognition module at the current setting set by the controller. Then, the optical performance difference between the multiple dimming films and / or multiple zones and the calibrated color is determined by the brightness or optical recognition results (each dimming film corresponds to an optical performance difference).

[0077] Step 200: The controller generates a first voltage adjustment command based on the optical performance difference and sends the first voltage adjustment command to the corresponding multiple dimming films and / or multiple zones, so that the optical performance difference between the multiple dimming films and / or multiple zones is less than a preset value; wherein, the controller is connected to the multiple dimming films and / or multiple zones.

[0078] Specifically, the optical performance difference between multiple dimming films and / or multiple zones and the calibrated color is fed back to the voltage compensation program. The compensation program inputs the voltage adjustment command of the corresponding dimming film and / or the corresponding zone to the controller. Based on the voltage output at the new level, the brightness or optical recognition of the multiple dimming films and / or multiple zones is visually identified again. If there is no abnormality, the optical performance difference calibration ends. If there is an abnormality, the above steps are repeated.

[0079] In some embodiments, the optical performance difference includes at least one of the following: color difference, haze difference, and transmittance difference between multiple dimming films and / or multiple zones.

[0080] The optical performance calibration method for dimming films provided in this embodiment of the invention includes: first, determining the optical performance difference between multiple dimming films and / or a dimming film with multiple partitions and a preset calibration color; then, generating a first voltage adjustment command based on the optical performance difference through a controller, and issuing the first voltage adjustment command to the corresponding dimming film and / or multiple partitions, so that the optical performance difference between the multiple dimming films and / or multiple partitions is less than a preset value; wherein, the controller is connected to the multiple dimming films and / or multiple partitions.

[0081] The optical performance calibration method for dimming films provided by this invention can accurately adjust the voltage output of each controller channel between different dimming films or between different zones, thereby achieving optical and appearance consistency of different dimming films and / or different zones at the same dimming level, enhancing the user experience.

[0082] To further illustrate the solution, the present invention also provides a specific implementation of a dimming film optical performance calibration system and method.

[0083] The purpose of this invention is to provide a system and method for calibrating the optical performance of dimming films, enabling multiple dimming films to achieve no or minimal optical performance differences between dimming zones under the same controller settings. Furthermore, if the dimming film is embedded within glass, it is called dimming glass. The corresponding objective of this invention is to enable multiple dimming glasses to achieve no or minimal optical performance differences between dimming zones under the same controller settings.

[0084] See Figure 6 The dimming diaphragm optical performance calibration system has at least two non-zoned dimming diaphragms, Gn and Gn+1 (n = 1, 2, 3...). The dimming diaphragms can be multiple outputs from a single controller (ECU), or they can be ECUn and ECUn+1 (n = 1, 2, 3...) with one-to-one outputs. The dimming diaphragms achieve level adjustment by setting at least two different voltage values.

[0085] When set to a certain level, the dimming diaphragm is connected to the controller and receives the first electrical signal output by the controller. The dimming diaphragm then displays the appearance corresponding to the first electrical signal.

[0086] The dimming film at the current setting is identified by a preset visual recognition system (such as human eye observation, camera photography, light sensor recognition, etc.) for brightness or darkness recognition or optical recognition (such as transmittance, haze, etc.). It can be based on visual recognition of brightness or darkness, optical recognition, or both.

[0087] If there is no optical performance difference, the calibration terminates; if there is an optical performance difference, the visual recognition result is input to the compensation program; the compensation program outputs a voltage correction signal to the controller based on the obtained information; or directly adjusts the voltage output on the corresponding line of the controller. After receiving the voltage correction signal, the controller sends the output electrical signal of the controller or the corresponding output line of the controller to the corresponding dimming diaphragm, and the dimming diaphragm presents the appearance corresponding to the second electrical signal.

[0088] If there is no difference in optical performance, the calibration is terminated; if there is a difference in optical performance, the above steps are repeated.

[0089] The optical performance difference referred to here is based on the color or brightness difference that can be identified by the human eye, camera or light sensor. Preferably, the optical performance difference is at least one of the following: ΔE ≥ 2.0 between the two dimming films, haze difference ≥ 2%, and transmittance difference ≥ 2%.

[0090] Preferably, when Gn+1 (n=2, 3……), the dimming film to be adjusted is a dimming film with centered color performance or centered brightness performance.

[0091] Next, see Figure 7 The dimming diaphragm optical performance calibration system has at least one dimming group consisting of one zone dimming diaphragm and one non-zone dimming diaphragm. Each zone of the zone dimming diaphragm can be controlled independently, and the zones are Sn and Sn+1 (n = 1, 2, 3...). The non-zone dimming diaphragm is Gn (n = 1, 2, 3...). This dimming group can be a single controller (ECU) with multiple outputs, or it can be ECUn and ECUn+1 (n = 1, 2, 3...) with one-to-one outputs. Preferably, it is a single controller with multiple outputs.

[0092] and Figure 6 Similarly, when set to a certain level, the local dimming film and the non-local dimming film are connected to the controller and receive the first electrical signal output by the corresponding controller. The local dimming film and the non-local dimming film then exhibit the appearance corresponding to the first electrical signal.

[0093] The system uses a preset visual recognition system (such as human eye observation, camera photography, light sensor recognition, etc.) to perform brightness or darkness recognition or optical recognition (such as transmittance, haze, etc.) on the dimming film and non-dimming film at the current setting. It can use only visual recognition of brightness or darkness, or it can use optical recognition, or it can use both.

[0094] If no optical performance difference is found, the calibration terminates. If an optical performance difference is found, the visual recognition result is input to the compensation program. The compensation program outputs a voltage correction signal to the controller based on the obtained information; or directly adjusts the voltage output on the corresponding line of the controller. After receiving the voltage correction signal, the controller outputs a second electrical signal to the corresponding zone dimming film and non-zone dimming film, and the dimming film displays the appearance corresponding to the second electrical signal. If no optical performance difference is found, the calibration terminates; if an optical performance difference is found, the above steps are repeated.

[0095] Next, see Figure 8The dimming film color difference calibration system has at least one zone dimming film, where each zone can be controlled independently, named Sn and Sn+1 (n = 1, 2, 3...). The zone dimming film can be a single controller (ECU) with multiple outputs, or it can be ECUn and ECUn+1 (n = 1, 2, 3...) with one-to-one outputs. Preferably, it uses a single controller with multiple outputs. The optical performance difference adjustment steps are similar to... Figure 6 as well as Figure 7 The methods used in the corresponding examples are the same, so they will not be repeated here.

[0096] Experimental data:

[0097] right Figure 8 Examples are used to illustrate data and charts, such as Figure 9 As shown, the PDLC dimming film is a 7-zone dimming glass. The 7 zones are connected to a controller via different independent circuits for dimming glass control. Table 1 shows that when the controller outputs the first electrical signal, zone 7 is visually the brightest, with the highest transmittance, and the difference between its transmittance and the lowest value exceeds 2.6%. Therefore, following the above steps, the compensation program is sequentially activated. When the controller outputs the third electrical signal, zone 7 no longer shows any optical performance difference in visual recognition, and the transmittance difference is less than 2.0%.

[0098] It should be noted that this experiment used visual identification of the difference in brightness and optical performance in the appearance. To provide feedback on the accuracy of the calibration system, the transmittance values ​​of each zone were tested. It should also be noted that during the actual calibration process, for critical values, such as zone 6, the voltage can be appropriately adjusted and reduced to maintain better uniformity of brightness across the entire surface.

[0099] Table 1

[0100]

[0101]

[0102] The optical performance calibration system for dimming films provided in this invention includes: multiple dimming films and / or dimming films having multiple partitions; a controller connected to the multiple dimming films and / or multiple partitions, configured to generate a first voltage adjustment command based on the optical performance difference between the dimming films and / or multiple partitions and a preset calibration color, and to issue the first voltage adjustment command to the corresponding dimming films and / or multiple partitions, so that there is no optical performance difference between the multiple dimming films and / or multiple partitions.

[0103] The optical performance calibration system for dimming films provided by this invention can accurately adjust the voltage output of each controller channel between different dimming films and / or different zones, thereby achieving optical and appearance consistency of different dimming films and / or different zones at the same setting, enhancing the user experience.

[0104] It is understood that the dimming glass provided in this embodiment of the invention is provided with the above-mentioned dimming film optical performance calibration system, and the dimming glass can be applied to scenarios such as vehicles and windows that require light adjustment.

[0105] The transportation vehicles provided in this invention include the dimming glass described in the above embodiments. The transportation vehicles include, but are not limited to, automobiles, trains, and airplanes.

[0106] Figure 10 This is a schematic diagram of the physical structure of a computer device provided in an embodiment of the present invention, as shown below. Figure 10 As shown, the computer device may include: a processor 701, a communication interface 702, a memory 703, and a communication bus 704, wherein the processor 701, the communication interface 702, and the memory 703 communicate with each other through the communication bus 704. The processor 701 can call logical instructions in the memory 703 to execute the methods provided in the above-described method embodiments, such as: determining the optical performance difference between multiple dimming films and / or dimming films with multiple partitions and a preset calibration color; generating a first voltage adjustment instruction based on the optical performance difference through a controller, and issuing the first voltage adjustment instruction to the corresponding dimming film and / or multiple partitions, so that the optical performance difference between the multiple dimming films and / or multiple partitions is less than a preset value; wherein the controller is connected to the multiple dimming films and / or multiple partitions.

[0107] Furthermore, the logical instructions in the aforementioned memory 703 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0108] This embodiment discloses a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by the computer, the computer can perform the methods provided in the above-described method embodiments, such as: determining the optical performance difference between multiple dimming films and / or dimming films with multiple partitions and a preset calibration color; generating a first voltage adjustment instruction based on the optical performance difference through a controller, and issuing the first voltage adjustment instruction to the corresponding dimming film and / or multiple partitions, so that the optical performance difference between the multiple dimming films and / or multiple partitions is less than a preset value; wherein the controller is connected to the multiple dimming films and / or multiple partitions.

[0109] This embodiment provides a computer-readable storage medium storing a computer program that causes a computer to execute the methods provided in the above-described method embodiments. For example, the methods include: determining the optical performance difference between multiple dimming films and / or dimming films with multiple partitions and a preset calibration color; generating a first voltage adjustment command based on the optical performance difference using a controller, and issuing the first voltage adjustment command to the corresponding dimming films and / or multiple partitions, so that the optical performance difference between the multiple dimming films and / or multiple partitions is less than a preset value; wherein the controller is connected to the multiple dimming films and / or multiple partitions.

[0110] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0111] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0112] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0113] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0114] In the description of this specification, the references to terms such as "an embodiment," "a specific embodiment," "some embodiments," "for example," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0115] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A calibration system for the optical performance of a dimming film, characterized in that, include: Multiple dimming films and / or dimming films with multiple zones; A controller, connected to the multiple dimming films and / or the multiple partitions, is configured to generate a first voltage adjustment command based on the optical performance difference between the dimming films and / or the multiple partitions and a preset calibration color, and to issue the first voltage adjustment command to the corresponding dimming films and / or the multiple partitions, so that the optical performance difference between the multiple dimming films and / or the multiple partitions is less than a preset value.

2. The optical performance calibration system for dimming films according to claim 1, characterized in that, The calibration color is one of the colors of any one of the multiple dimming films and / or the colors of any one of the multiple partitions.

3. The optical performance calibration system for dimming films according to claim 1, characterized in that, The number of controllers is multiple, and each controller is connected to at least one dimming diaphragm and / or at least one partition.

4. The optical performance calibration system for dimming films according to claim 1, characterized in that, The calibration colors are multiple, and the controller is also used to divide the multiple dimming films and / or the multiple partitions into multiple groups; A second voltage adjustment command is generated based on the optical performance difference between the multiple dimming films and / or the multiple partitions in the same group and any one of the multiple calibration colors; as well as The second voltage adjustment command is issued to the multiple dimming films and / or the multiple partitions in the same group, so that the difference in optical performance between the multiple dimming films and / or the multiple partitions in the same group is less than the preset value.

5. The optical performance calibration system for dimming films according to claim 4, characterized in that, The number of the calibrated colors is the same as the number of the groups.

6. The optical performance calibration system for dimming films according to claim 1, characterized in that, The preset value is at least one of the following: color difference value ≤ 2.0, haze difference value ≤ 2%, and transmittance difference value ≤ 2%.

7. A method for calibrating the optical performance of a dimming film applied to the dimming film optical performance calibration system according to any one of claims 1 to 6, characterized in that, include: Determine the optical performance difference between multiple dimming films and / or dimming films with multiple zones and the preset calibration color; The controller generates a first voltage adjustment command based on the optical performance difference and sends the first voltage adjustment command to the corresponding multiple dimming films and / or multiple partitions, so that the optical performance difference between the multiple dimming films and / or the multiple partitions is less than the preset value; wherein, the controller is connected to the multiple dimming films and / or the multiple partitions; The optical performance difference includes at least one of the following: color difference, haze difference, and transmittance difference between the multiple dimming films and / or the multiple zones.

8. The method for calibrating the optical performance of a dimming film according to claim 7, characterized in that, The preset value is at least one of the following: color difference value ≤ 2.0, haze difference value ≤ 2%, and transmittance difference value ≤ 2%.

9. A type of dimming glass, characterized in that, The system includes the optical performance calibration system for a dimming film as described in any one of claims 1 to 6, and at least one piece of glass disposed outside the dimming film; the calibration color is the color of any one of the at least one pieces of glass.

10. A means of transportation, characterized in that, Including the dimming glass as described in claim 9.

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