Smart watch screen-off display method, system and polarization screen

Abstract

This application proposes a method, system, and polarized screen for a smartwatch's off-screen display. The method includes: determining an outdoor area and predicting light intensity; screening periods of strong light, and providing an external polarized screen for the smartwatch; configuring the polarized screen with initial electric field parameters in normal mode and excitation electric field parameters that can cause it to enter polarized mode; configuring the smartwatch's off-screen display mode; and in outdoor areas, determining whether to apply excitation electric field parameters to the polarized screen, and displaying according to the corresponding off-screen display mode. This application applies an electric field to an external polarized screen to filter reflected light in a specific direction, thereby reducing the reflected light entering the smartwatch. This allows the user to clearly observe the off-screen display content of the smartwatch through the polarized screen even in strong light, reduces glare interference, and significantly improves the visibility of the smartwatch in complex lighting environments.

Description

Technical Field

[0001] The present application relates to the field of outdoor protection for smart watches, and more specifically, to a method and system for displaying the screen of a smart watch, and a polarized screen. Background Art

[0002] With the widespread adoption of smart wearable technology, smartwatches have become a valuable companion in daily life and on the go. The always-on display feature significantly enhances the convenience of accessing information, allowing users to quickly check the time and date, and receive important notifications without turning on the screen.

[0003] However, this convenient feature faces significant challenges when users are outdoors in bright sunlight. During activities like hiking and cycling, strong sunlight shines onto the smartwatch screen, creating severe reflections and glare. Even when the screen is off, users can find it difficult to see the information on the screen, preventing them from accessing critical information in a timely manner.

[0004] To address screen glare, traditional technologies often use methods like increasing screen brightness. However, this method only works when the screen is on; it doesn't work when the smartwatch is off. Furthermore, increasing the display brightness while the screen is off not only consumes a significant amount of power, significantly shortening the smartwatch's battery life, but also fails to effectively improve screen visibility in certain extremely bright environments, making it difficult to meet user needs. This suggests that in off-screen display scenarios, a solution is urgently needed that can ensure screen visibility in bright light while also maintaining low power consumption. Summary of the Invention

[0005] Based on the problems existing in the prior art, this application provides a method, system and polarized screen for displaying the screen of a smartwatch. The specific solution is as follows:

[0006] In the first part, this application proposes a method for displaying the screen of a smartwatch, including:

[0007] Determining an outdoor area that the user will visit during a preset first time period, and obtaining a predicted light intensity of the outdoor area during the first time period;

[0008] Based on the predicted light intensity, a period in which the light intensity is within a preset high light range within the first period is selected to obtain a strong light period, and when the proportion of the strong light period in the first period exceeds a preset ratio, a preset polarization screen composed of a multi-layer structure is provided externally to the smartwatch;

[0009] Based on the preset low-light interval, the predicted light intensity and the strong-light period, the polarization screen is configured with initial electric field parameters in the normal mode and excitation electric field parameters that can cause it to enter the polarization mode;

[0010] Configuring the screen-off display mode of the smartwatch according to the screen parameters of the polarized screen in the normal mode and the polarized mode respectively, to obtain a first screen-off display mode and a second screen-off display mode;

[0011] In the outdoor area, determine whether to apply the excitation electric field parameters to the polarization screen; if not, operate in normal mode and enable the smart watch to display in the first screen-off display mode; if applied, operate in polarization mode and enable the smart watch to display in the second screen-off display mode.

[0012] In some specific embodiments, whether it is currently appropriate to obtain the actual light intensity is analyzed based on the energy consumption data of the smart watch;

[0013] If appropriate, determining whether to apply the excitation electric field parameters to the polarization screen by comparing the actual light intensity with the preset high light interval;

[0014] If not, the excitation electric field parameters are applied to the polarization screen at least during the strong light period.

[0015] In some specific embodiments, the first screen-off display mode includes:

[0016] Obtaining actual light intensity and determining whether the actual light intensity is in the high light range:

[0017] If not, adjust the brightness of the smartwatch's screen display according to the actual light intensity;

[0018] If so, the screen-off display brightness of the smart watch is adjusted to a preset high-brightness range, or the second screen-off display mode is used for display and the excitation electric field parameters are applied to the polarized screen.

[0019] In some specific embodiments, the multi-layer structure of the polarizing screen has a liquid crystal layer interposed therebetween;

[0020] Applying an electric field to the liquid crystal layer according to the excitation electric field parameters changes the arrangement direction of the liquid crystal molecules, so that the polarized screen only allows light with a specific polarization direction to pass through, reducing the reflected light entering the smart watch, allowing the user to observe the screen display content of the smart watch through the polarized screen.

[0021] In some specific embodiments, the multi-layer structure of the polarizing screen includes an electrochromic layer;

[0022] An electric field is applied to the electrochromic layer according to the excitation electric field parameters to cause an oxidation-reduction reaction to change the optical properties, thereby absorbing and scattering light in a partial polarization direction, reducing the reflected light entering the smart watch, and allowing the user to observe the screen-off display content of the smart watch through the polarized screen.

[0023] In some specific embodiments, the method further includes obtaining a predicted ambient temperature of the outdoor area during a first period of time;

[0024] Analyze and predict whether the ambient temperature will exceed the preset normal temperature range during extreme temperature periods;

[0025] If so, the extreme temperature period is excluded from at least the strong light period, and the actual ambient temperature is obtained in the outdoor area. When the actual ambient temperature exceeds the normal temperature range, application of the excitation electric field parameters to the polarization screen is stopped.

[0026] In some specific embodiments, a user's viewing posture for the smart watch is predetermined;

[0027] When the light intensity is in the low light range, the initial electric field parameters are set so that the polarization effect of the polarizing screen on light is weakest, and the screen-off display mode of the smart watch is continuously adjusted until the screen-off display content of the smart watch can be clearly seen through the polarizing screen in the viewing posture, thereby obtaining a first screen-off display mode.

[0028] In some specific embodiments, the maximum light intensity among the predicted light intensities is found, and when the light intensity is at the maximum light intensity, the electric field parameters of the polarized screen and the screen-off display mode of the smart watch are continuously adjusted until the screen-off display content of the smart watch can be clearly seen through the polarized screen in the viewing posture, and the operating time and operating duration of the screen-off display mode are determined in combination with the strong light period to obtain the excitation electric field parameters and the second screen-off display mode.

[0029] In the second part, this application proposes a smartwatch screen-off display system under extreme temperatures, including:

[0030] a data acquisition unit, configured to determine an outdoor area that a user will visit during a preset first time period, and to acquire a predicted light intensity of the outdoor area during the first time period;

[0031] a polarization configuration unit, configured to select, based on the predicted light intensity, a period in the first time period in which the light intensity is within a preset high light range to obtain a strong light period, and to provide the smartwatch with a preset polarization screen composed of a multi-layer structure when the proportion of the strong light period in the first time period exceeds a preset ratio;

[0032] Based on the preset low-light interval, the predicted light intensity and the strong-light period, the polarization screen is configured with initial electric field parameters in the normal mode and excitation electric field parameters that can cause it to enter the polarization mode;

[0033] a screen-off configuration unit, configured to configure a screen-off display mode of the smartwatch according to screen parameters of the polarized screen in the normal mode and the polarized mode, to obtain a first screen-off display mode and a second screen-off display mode;

[0034] The implementation unit is used to determine whether to apply the excitation electric field parameters to the polarization screen in the outdoor area; if not, it operates in normal mode and causes the smart watch to display in the first screen-off display mode; if applied, it operates in polarization mode and causes the smart watch to display in the second screen-off display mode.

[0035] In the third part, the present application proposes a polarizing screen for implementing the smartwatch screen-off display method described in the first part, wherein the polarizing screen is detachably mounted above the smartwatch screen;

[0036] The polarizing screen comprises a first transparent electrode layer, a second transparent electrode layer and a polarizer layer located between the first transparent electrode layer and the second transparent layer;

[0037] The first transparent electrode layer and the second transparent layer cooperate with each other to apply an electric field to the polarizer layer; the polarizer layer is used to reduce the passage of light under the action of the electric field.

[0038] Beneficial Effects: This application proposes a method, system, and polarized screen for a smartwatch screen-off display. By applying an electric field to an external polarized screen, the system filters reflected light in a specific direction, reducing the reflected light entering the smartwatch. This allows users to clearly observe the smartwatch's screen-off display content through the polarized screen even in strong light conditions, reduces glare interference, and significantly improves the visibility of the smartwatch in complex lighting environments. By filtering the reflected light through an external polarized screen and comprehensively considering various factors to determine whether to apply excitation electric field parameters to the polarized screen, unnecessary energy consumption is reduced in low-light scenarios or where no polarization function is required. The smartwatch can adjust the screen-off display brightness in real time according to the actual light intensity and coordinate with the switching of the polarized screen working mode. When the light increases, the screen brightness is increased, and the polarized screen is put into polarized mode in a timely manner; when the light decreases, the brightness is reduced, and the polarized screen is switched back to normal mode. The dynamic display strategy ensures a clear and comfortable visual experience for users under various lighting conditions.

[0039] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 This is a flowchart of the smartwatch screen-off display method of the present application;

[0042] Figure 2 This is a schematic diagram of the principle of the smartwatch screen-off display method of the present application;

[0043] Figure 3 This is a schematic diagram of the principle of how the application determines the parameters of the applied electric field;

[0044] Figure 4 This is a schematic diagram of the smartwatch screen-off display system module of this application;

[0045] Figure 5 This is a schematic diagram of the position of the smart watch and polarized screen of this application.

[0046] Reference numerals: 1 - data acquisition unit; 2 - polarization configuration unit; 3 - screen-off configuration unit; 4 - implementation unit. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0048] This application proposes a method for displaying the screen off of a smartwatch. By predicting the light intensity, it identifies the period of strong light and provides an external polarized screen for the smartwatch. According to the excitation electric field parameters, the polarized screen enters the polarized mode, filters the reflected light in a specific direction, and reduces glare interference. The flow chart of the display method is shown in the attached figure. Figure 1 As shown in the attached Figure 2 The specific plan is as follows:

[0049] A smartwatch screen-off display method, comprising:

[0050] 101. Determine an outdoor area that the user will visit during a preset first time period, and obtain a predicted light intensity of the outdoor area during the first time period;

[0051] 102. Based on the predicted light intensity, select a period within the first time period in which the light intensity is within a preset high light range to obtain a strong light period, and when the proportion of the strong light period in the first time period exceeds a preset ratio, provide the smartwatch with a preset polarization screen composed of a multi-layer structure; and configure initial electric field parameters for the polarization screen in a normal mode and excitation electric field parameters for causing it to enter a polarization mode based on the preset low light range, the predicted light intensity, and the strong light period;

[0052] 103. Configuring the screen-off display mode of the smartwatch according to the screen parameters of the polarized screen in the normal mode and the polarized mode, respectively, to obtain a first screen-off display mode and a second screen-off display mode;

[0053] 104. In an outdoor area, determine whether to apply excitation electric field parameters to the polarization screen; if not, operate in normal mode and enable the smart watch to display in the first screen-off display mode; if applied, operate in polarization mode and enable the smart watch to display in the second screen-off display mode.

[0054] This application introduces an external polarized screen and develops a series of targeted designs around it, effectively overcoming the problem of smartwatches displaying the screen off in complex outdoor environments. In strong outdoor light environments, the screen-off display content of ordinary smartwatches will be difficult to see due to screen reflections. By equipping the smartwatch with an external polarized screen, the reflected light can be effectively filtered, visibility can be improved, and users can easily read the screen information even when the screen is off. The polarized screen, combined with the intelligent electric field parameter control mechanism, can turn off the polarization function in low-light or screen-off scenarios where the polarization function is not required, thus avoiding additional power consumption. In strong light screen-off scenarios, turning on the polarization mode at the right time can ensure that the screen content is visible without causing unnecessary power consumption, which is crucial for smartwatches with limited battery life.

[0055] Step 101 identifies the outdoor locations the user plans to visit within a specific preset time period. This preset first time period can be a time period set by the user for a specific day, such as 8:00 AM to 10:00 AM, or it can be a time period automatically set by the smartwatch based on the user's daily habits. There are various ways to determine the outdoor location, including manually entering the destination, synchronizing the smartwatch with other devices (such as a mobile phone), or inferring based on the user's past travel patterns.

[0056] After determining the user's desired outdoor area and the corresponding preset first time period, the smartwatch needs to obtain forecast data for the area's light intensity during that time period. This is typically accomplished by exchanging data with an online weather service platform or a professional light data provider. The forecast is based on information such as the outdoor area's location, date, and time. For example, suppose the user's preset first time period is from 12:00 PM to 2:00 PM on a summer day, and the destination is a beach. The smartwatch, through a connection to the weather service platform, determines that the beach's light intensity during this time period is projected to exceed 10,000 lux due to direct sunlight. In contrast, for a city park on a cloudy day, the predicted light intensity during the same time period might be only 2,000-3,000 lux.

[0057] Based on the previously obtained predicted light intensity for the outdoor area during the preset time period, the system selects periods where the light intensity falls within the preset high light range. These periods are defined as strong light periods. For example, if the preset time period is 8:00 AM to 10:00 AM, and the predicted light intensity shows that the light intensity reaches 9,000 lux from 9:00 AM to 9:30 AM, which is within the preset high light range (greater than 8,000 lux), then 9:00 AM to 9:30 AM is the selected strong light period.

[0058] The proportion of strong light periods in the preset first period is calculated and compared with a preset ratio. The preset ratio is a pre-set threshold, such as 30%. If the proportion of strong light periods in the first period exceeds this preset ratio, the smartwatch is equipped with a preset polarized screen composed of a multi-layer structure. This is because when the proportion of strong light periods is large, it means that the smartwatch is in a strong light environment for most of the preset period. Ordinary screen display may be significantly affected. However, a polarized screen can effectively reduce reflected light and improve screen visibility in strong light.

[0059] The preset low-light range and the preset high-light range are both pre-set light intensity ranges, representing low-light and high-light conditions, respectively. For example, the low-light range can be set between 0 and 1000 lux. Within this range, the smartwatch can use lower screen brightness and weaker polarization processing to conserve power while ensuring a good display quality. The high-light range, set above 5000 lux, triggers the smartwatch's high-light response mechanism when the light intensity reaches this range, such as using an external polarized screen or adjusting the display parameters to improve visibility in bright light. In actual use, adaptive selection and adjustment can be made based on the smartwatch's screen conditions, different environments, and different weather conditions. Understand the display performance of the smartwatch screen under different light intensities, including contrast, brightness, and viewing angles. Determine the light intensity at which the screen begins to show noticeable reflections, making the content unclear, and the light intensity at which the screen can display normally with low power consumption. For example, if the smartwatch screen reflects excessive light when exposed to light intensity exceeding 5000 lux, making the off-screen display difficult to read, the lower limit of the high light range can be set to 5000 lux. Through actual experiments and testing, observe the display quality and user experience of the smartwatch under different light range settings. Invite different users to participate in the test, collect their feedback on the screen display quality, and adjust the light range settings based on this feedback.

[0060] In this application, the normal mode and polarization mode of the smart watch are two different working states, which differ in screen display effects, power consumption, and applicable scenarios. In normal mode, the smart watch screen works in a conventional way. The liquid crystal molecules are arranged according to the preset electric field state, and images and text are displayed by controlling the polarization direction and transmittance of the liquid crystal molecules to light. In this mode, the color, contrast and viewing angle of the screen display can meet general usage requirements. It is suitable for daily indoor environments, such as offices, homes and other places with low and stable light intensity. In these environments, users can clearly check the time, message notifications, browse simple application interfaces, etc. At the same time, the power consumption of normal mode is relatively low, which helps to extend the battery life of the smart watch.

[0061] When a smartwatch enters polarized mode, it's usually achieved through an external polarizing screen or by adjusting the polarization properties of the screen itself. A polarizing screen consists of a multi-layered structure, with the polarizer layer filtering light, allowing only light with a specific polarization direction to pass through. In bright sunlight, reflected light is often chaotically polarized. A polarizing screen can effectively reduce the interference of this reflected light, making the content displayed on the screen clearer and more visible. For example, when strong external light shines on the screen, the polarizing screen filters out reflected light that doesn't match its own polarization direction, allowing only the adjusted light to pass through, thereby improving screen contrast and visibility. Polarized mode is primarily used to cope with bright sunlight conditions, such as outdoor scenes with direct sunlight. In these conditions, the standard normal mode display is easily affected by strong light reflections, making the screen content difficult to read. Polarized mode, however, significantly improves screen visibility in bright sunlight, allowing users to easily read the time, view navigation information, or other important data even in harsh lighting conditions. However, due to the additional polarization processing required, this mode may increase power consumption.

[0062] When the smartwatch is exposed to strong sunlight and the light intensity exceeds the preset high light range (e.g., above 5000 lux), the excitation electric field parameters must be configured to force the polarized screen into polarized mode. These excitation electric field parameters are determined based on the characteristics of the polarized screen and the requirements of the strong light environment. Generally, a strong electric field is required to cooperate with the polarizer layer to effectively filter strong light and optimize the display. For example, by adjusting the excitation electric field intensity and direction, the polarization direction of the liquid crystal molecules matches that of the polarizer layer, minimizing interference from reflected light and improving screen visibility in strong light. Predicting the changing trend of light intensity is also crucial for configuring the excitation electric field parameters in polarized mode. If the light intensity is predicted to increase during the strong light period, the excitation electric field parameters may need to be increased accordingly to cope with the increasing light intensity. Conversely, if the light intensity is predicted to decrease, the excitation electric field parameters can be appropriately reduced while still ensuring that the display effect in polarized mode is effectively maintained. For example, during mountain climbing, as the sun gradually rises, the light intensity continues to increase. The smart watch needs to gradually adjust the excitation electric field parameters according to the predicted rising trend of light intensity to ensure that the screen remains clearly visible in strong light throughout the entire climbing process.

[0063] In addition, when configuring the excitation electric field parameters, it is also necessary to monitor the display effect of the screen in real time and make adjustments based on feedback. The built-in light sensor or other detection mechanism of the smart watch can be used to obtain information such as the reflected light intensity and contrast of the screen in real time. If it is found that the screen display still has reflections or poor visibility, it means that the excitation electric field parameters may not be optimized enough and need further adjustment until the best display effect is achieved. For example, when riding outdoors, if it is found that even in polarization mode, the screen still has reflections at certain angles, it is necessary to fine-tune the excitation electric field parameters according to the actual situation to improve the visibility of the screen.

[0064] Polarized screens have special optical properties. Under the influence of different electric field parameters, the screen parameters (such as light transmittance and polarization direction) will change, thus presenting different screen effects. Due to the existence of the polarized screen, there will be certain differences when users observe the screen-off content of the smart watch through the polarized screen. The polarized screen will have different screen parameters under different electric field parameters and present different screen effects. For example, under certain electric field parameters, the screen may be too dark, the color may be distorted, or the contrast may be insufficient, affecting the user's reading of the screen-off display content. Therefore, it is necessary to appropriately adjust the screen-off display mode such as brightness and color for the smart watch to better obtain the screen-off display content of the smart watch with the participation of the polarized screen. The present application is configured with a first screen-off display mode and a second screen-off display mode, corresponding to the normal mode and polarized mode of the polarized screen.

[0065] In normal mode, the basic layout and element accuracy of the screen's off-screen display must be determined based on basic screen parameters such as resolution and pixel density to ensure clear information display. Then, based on color depth and contrast parameters, appropriate color combinations and contrast settings are selected to ensure that information displayed on the off-screen, such as the time and battery level, is clearly visible under normal indoor lighting conditions. At the same time, considering power consumption, colors should not be overly complex or bright. Finally, referring to the brightness range parameter and combining it with the ambient light intensity detected by the ambient light sensor, the off-screen display brightness is automatically adjusted within the lower range of the normal mode brightness range to adapt to different indoor lighting environments and avoid excessive brightness or darkness.

[0066] When considering polarization mode, the characteristics of the polarizer layer are crucial. By leveraging the polarization direction and transmittance of the polarizer layer, specialized off-screen display patterns or symbols can be designed to remain clearly visible even in strong light filtered by the polarizer layer. For example, patterns can be chosen that interact with the polarization direction to enhance visibility while remaining subtle in normal light. Furthermore, based on the alignment characteristics of liquid crystal molecules, simple graphic or text displays can be designed. By leveraging the liquid crystal molecules' ability to adjust light polarization, key information can be displayed with minimal power consumption, achieving both clear display and power conservation in bright sunlight.

[0067] In some specific embodiments, the user's viewing posture for the smart watch is predetermined; when the light intensity is in a preset low light range, the initial electric field parameters are set so that the polarization effect of the polarization screen on light is weakest, and the screen-off display mode of the smart watch is continuously adjusted until the screen-off display content of the smart watch can be clearly seen through the polarization screen in the viewing posture, thereby obtaining a first screen-off display mode.

[0068] Different viewing postures can affect the user's visual experience of the on-screen content. For example, when a user holds a smartwatch flat versus tilted at an angle, light reflects and refracts differently on a polarized screen, affecting the perceived clarity of the screen-off display. Predetermining the user's viewing posture provides a fixed reference angle for subsequent adjustments to the screen-off display, allowing for more precise display optimization and ensuring a clear viewing experience regardless of the user's preferred viewing posture. In low light conditions, ambient light is inherently dim. If the polarized screen's polarization is too strong, it may further weaken the light reflected from the screen to the user's eyes, making the screen-off display difficult to read. Therefore, the initial electric field parameters are set to minimize the polarization effect of the polarized screen. This allows as much light as possible to pass through the screen and be reflected to the user's eyes, improving screen visibility. After minimizing the polarization effect, the display can be further optimized by continuously adjusting the smartwatch's screen-off display, such as by adjusting brightness, adjusting color contrast, and optimizing font size and style. This process involves continuous experimentation and optimization, with the goal of ensuring that users can clearly see the smartwatch's always-on display through the polarized screen under a given viewing posture. This approach allows us to find the optimal always-on display setting, known as the primary always-on display mode, for low-light environments and specific viewing postures, thereby improving the user experience of viewing smartwatch always-on information in low-light conditions.

[0069] In some specific embodiments, the maximum light intensity among the predicted light intensities is found. When the light intensity is at the maximum light intensity, the electric field parameters of the polarized screen and the screen-off display mode of the smart watch are continuously adjusted until the screen-off display content of the smart watch can be clearly seen through the polarized screen in the viewing posture, and the operating time and operating duration of the screen-off display mode are determined in combination with the strong light period to obtain the excitation electric field parameters and the second screen-off display mode.

[0070] Amidst various lighting conditions, smartwatches often face the most challenging situations during periods of peak light intensity. This is because screen reflections can be strong in bright environments, making the onscreen content difficult to read. The electric field parameters of the polarized screen critically influence its display performance in bright light. By finding the maximum light intensity among the predicted light intensities, it is possible to determine the degree to which the polarized screen and the screen-off display mode should be adjusted to ensure clear viewing of the screen-off content under the worst lighting conditions. When the light intensity reaches its maximum, continuous adjustments are made to the electric field parameters of the polarized screen and the smartwatch's screen-off display mode. Adjusting the electric field parameters alters the polarization properties of the polarized screen. For example, by adjusting the arrangement of liquid crystal molecules, the screen can better filter out reflected light in bright light, enhancing contrast and improving visibility. Simultaneously, adjustments to the screen-off display mode may include increasing screen brightness, changing the color scheme to improve contrast against the bright background, and optimizing the layout of displayed content. This adjustment process is a process of repeated trial and optimization until the user can clearly see the smartwatch's screen-off display content through the polarized screen under the predetermined viewing posture.

[0071] After determining the electric field parameters and screen-off display mode that can clearly display the screen-off content under maximum light intensity, it is necessary to further determine the operating time and operating duration of this display mode in combination with the strong light period. The strong light period refers to the time period of the day when the light intensity is higher. The strong light period of each day can be determined by analyzing historical light data or real-time monitoring of changes in ambient light intensity. The operating time of the second screen-off display mode is set according to the strong light period. For example, from sunrise to noon in the morning and before sunset in the afternoon, if the light intensity is detected to be at or near the maximum light intensity, the second screen-off display mode is activated. The operating duration is determined according to the specific duration of strong light to ensure that the smartwatch can provide users with clear screen-off display content in an optimized display mode throughout the strong light period.

[0072] After the aforementioned adjustment process, the polarized screen electric field parameters ultimately determined to achieve a clear always-on display under maximum light intensity are referred to as the excitation electric field parameters, and the corresponding always-on display mode is referred to as the second always-on display mode. These excitation electric field parameters are key to achieving optimal display quality for the polarized screen under strong light conditions. Together, they and the second always-on display mode ensure that users can easily and clearly view the always-on display content even during periods of intense light and in specific viewing postures, enhancing the smartwatch's adaptability and user experience in diverse lighting environments.

[0073] In step 104, since the display effect of the polarized screen is different under different lighting conditions, in order to optimize the screen-off display of the smart watch outdoors, it is necessary to decide whether to apply excitation electric field parameters to the polarized screen according to actual conditions.

[0074] When it is determined that the excitation electric field parameters do not need to be applied, it means that the current outdoor lighting conditions are relatively weak, or under the current lighting conditions, the polarized screen in normal mode can meet the user's needs for clearly viewing the screen-off content. At this time, the smartwatch operates in normal mode, that is, the polarized screen operates according to its default electric field parameters and working mode. At the same time, the smartwatch displays the screen-off content according to the first screen-off display mode. The first screen-off display mode is a display mode optimized for low-light or normal-light environments. For example, in this mode, the screen brightness may be automatically adjusted to a lower level that can still clearly display information based on the low-light intensity detected by the ambient light sensor. The color and contrast will also be set to a combination suitable for low-light environments to ensure that users can easily see the content displayed on the smartwatch screen, such as time, date, unread message reminders, etc., even in relatively dim light outdoors.

[0075] If the application of excitation electric field parameters is determined to be necessary, this indicates strong outdoor light conditions. Normal mode and the first screen-off display mode may not allow the user to clearly see the screen content. In this case, the smartwatch switches to polarized mode. By applying excitation electric field parameters to the polarized screen, the electric field environment is altered, adjusting the alignment of the liquid crystal molecules within the polarized screen, among other factors, to better cope with strong light. For example, this may enhance the ability to filter light from specific directions, reduce strong light reflections, and improve screen contrast and visibility. Simultaneously, the smartwatch displays the screen content in the second screen-off display mode. This second screen-off display mode is specifically optimized for bright light conditions. It may utilize the excitation electric field parameters to adjust the screen display in various ways, such as increasing screen brightness, using more vivid color combinations to enhance contrast against the bright background, and optimizing font size and shape. This allows the user to clearly see the various information displayed on the smartwatch screen even in strong outdoor light, enhancing the user experience in bright outdoor light conditions.

[0076] In some specific embodiments, the energy consumption data of the smartwatch is used to analyze whether it is currently suitable to obtain the actual light intensity; if it is suitable, the actual light intensity is compared with the preset high light interval to determine whether to apply the excitation electric field parameters to the polarized screen; if it is not suitable, the excitation electric field parameters are applied to the polarized screen at least during the strong light period. The process is shown in the attached figure. Figure 3As shown in the figure, smartwatches typically have limited battery capacity, making energy management crucial to ensuring their endurance. By analyzing a smartwatch's energy consumption data, we can understand the watch's current power consumption and whether the remaining battery power can support certain operations. Obtaining actual light intensity requires the smartwatch to use certain sensors (such as the ambient light sensor) and communication functions (such as interacting with a server to obtain data), which consume a certain amount of power. Therefore, analyzing energy consumption data can determine whether there is sufficient power to support the actual light intensity operation, avoiding unnecessary power consumption due to insufficient power or affecting the normal use of the watch.

[0077] When energy consumption data analysis determines that the current light intensity is suitable, the smartwatch uses its built-in sensors or communicates with external data sources (such as weather service providers) to obtain the actual light intensity value. After obtaining the actual light intensity, it is compared with a preset high light range. This preset high light range is a light intensity range pre-set based on the smartwatch's display requirements and performance characteristics in bright light environments, for example, greater than 5000 lux is considered a high light range. If the actual light intensity is within the preset high light range, indicating strong light conditions, excitation electric field parameters are applied to the polarized screen to put it into polarized mode to improve visibility in bright light. If the actual light intensity is not within the preset high light range, indicating relatively low light conditions, excitation electric field parameters are not applied to the polarized screen, and the polarized screen remains in normal mode. The smartwatch displays content using the corresponding normal mode off-screen display.

[0078] When energy consumption data analysis indicates that the current actual light intensity is unsuitable, and the current actual light intensity cannot be accurately determined, to ensure the smartwatch screen display quality during periods of strong sunlight, excitation electric field parameters are applied to the polarized screen at least during predetermined periods of strong sunlight (periods within the preset high light intensity range, as determined by the previously analyzed predicted light intensity). During these periods of strong sunlight, the ambient light is strong, which may affect the smartwatch screen display and make the off-screen content difficult to read. By applying the excitation electric field parameters during these periods of strong sunlight, the polarized screen enters polarized mode, effectively reducing strong light reflections and improving screen contrast and visibility. This ensures that the user can clearly see the smartwatch screen display during periods of strong sunlight, thus maintaining a certain degree of display performance and user experience even when the actual light intensity cannot be determined.

[0079] In some specific embodiments, the first off-screen display mode includes: obtaining actual light intensity and determining whether the actual light intensity is in the high-light range; if not, adjusting the smartwatch's off-screen display brightness based on the actual light intensity; if so, adjusting the smartwatch's off-screen display brightness to a preset high-brightness range, or displaying in the second off-screen display mode and applying excitation electric field parameters to the polarized screen. The smartwatch uses a built-in ambient light sensor to detect ambient light intensity in real time, thereby obtaining the actual light intensity value. This sensor can sense changes in ambient light intensity and convert them into electrical signals, which are then recognized and processed by the smartwatch's system.

[0080] The current environment is brightly lit. There are two ways to handle this situation. One is to adjust the smartwatch's screen-off display brightness to a preset high-brightness range. This preset high-brightness range is a pre-set brightness range to ensure screen content is visible in bright light environments, for example, adjusting the brightness to 80%-100% of the screen's maximum brightness. The other option is to use the second screen-off display mode and apply excitation electric field parameters to the polarized screen. The second screen-off display mode is specifically optimized for bright light environments and may include adjustments to the color contrast, font size, and style of the displayed content. At the same time, an excitation electric field is applied to the polarized screen, putting it into polarized mode. This effectively filters strong light reflections, improves screen visibility, and ensures that users can clearly view the screen-off information in bright light.

[0081] In some specific embodiments, a liquid crystal layer is sandwiched in the middle of the multi-layer structure of the polarizing screen; an electric field is applied to the liquid crystal layer according to the excitation electric field parameters to change the arrangement direction of the liquid crystal molecules, so that the polarizing screen only allows light with a specific polarization direction to pass through, reducing the reflected light entering the smart watch, allowing the user to observe the content displayed on the smart watch through the polarizing screen.

[0082] When an electric field is applied to the liquid crystal layer according to the excitation field parameters, the alignment of the liquid crystal molecules changes. Liquid crystal molecules have unique physical properties that cause them to rearrange along the direction of the field under the influence of an electric field. This is because liquid crystal molecules have a specific electric dipole moment. Under the influence of the electric field, the molecules rotate due to the force, thereby changing their alignment. For example, in the absence of an electric field, the alignment of the liquid crystal molecules may be chaotic; however, when the appropriate excitation field is applied, the liquid crystal molecules align neatly. This shift in the alignment of the liquid crystal molecules allows the polarization screen to only allow light with a specific polarization to pass through. This is because the liquid crystal layer, after changing its molecular alignment, exhibits different optical properties for light with different polarizations. When light passes through the liquid crystal layer, only light with the polarization that matches the alignment of the liquid crystal molecules is allowed to pass smoothly, while light with other polarizations is absorbed, reflected, or scattered. In bright outdoor light, reflected light is often composed of light with a variety of polarizations. This filtering effect of the polarization screen effectively reduces the amount of reflected light entering the smartwatch.

[0083] In some specific embodiments, an electrochromic layer is sandwiched in the middle of the multi-layer structure of the polarized screen; an electric field is applied to the electrochromic layer according to the excitation electric field parameters to cause a redox reaction to change the optical properties, thereby absorbing and scattering light in a partial polarization direction, reducing the reflected light entering the smart watch, and allowing the user to observe the content displayed on the smart watch through the polarized screen.

[0084] When an electric field is applied to the electrochromic layer according to the excitation field parameters, it undergoes a redox reaction. Electrochromic materials typically contain ions or molecules that can undergo oxidation or reduction under the influence of an electric field. Under the influence of the electric field, these ions or molecules undergo electron transfer, thereby changing their chemical state. For example, when metal ions in some electrochromic materials gain electrons (a reduction reaction), their electronic structure changes, resulting in changes in the material's optical properties. Losing electrons (an oxidation reaction) also causes changes in optical properties. After the redox reaction, the electrochromic layer's optical properties change, specifically by absorbing and scattering light of certain polarizations. The electrochromic layer exhibits different absorption and scattering characteristics under different redox states. By adjusting the excitation field parameters, the redox degree of the electrochromic layer can be controlled, thereby precisely adjusting its absorption and scattering capabilities for light of different polarizations. In bright sunlight, reflected light contains light of various polarizations. By absorbing and scattering light of certain polarizations, the electrochromic layer effectively reduces the amount of reflected light entering the smartwatch. By reducing the reflected light entering the smartwatch, the screen contrast is improved and visibility is enhanced. This allows users to more clearly observe the smartwatch's always-on display through the polarized screen.

[0085] In some specific embodiments, the method further includes obtaining a predicted ambient temperature for the outdoor area during the first time period; analyzing whether the predicted ambient temperature includes extreme temperature periods that exceed a preset normal temperature range; and if so, excluding such extreme temperature periods during at least the bright light period. The method also obtains the actual ambient temperature in the outdoor area, and stops applying the excitation electric field parameters to the polarizing screen when the actual ambient temperature exceeds the normal temperature range. The preset normal temperature range is set based on the normal operating temperature range of components such as the smartwatch and its polarizing screen. Generally speaking, smartwatch components operate stably and reliably within a certain temperature range. For example, the preset normal temperature range may be 0°C to 40°C. The obtained predicted ambient temperature data is analyzed to determine whether the temperature exceeds this normal temperature range during the first time period, i.e., an extreme temperature period.

[0086] Polarized screens may not function properly in extreme temperatures, or continued operation may damage them. Therefore, at least during the strong light hours (previously filtered based on light intensity, the light intensity is within the preset high light range), extreme temperature periods are excluded. For example, if the originally determined strong light hours are from 10:00 AM to 12:00 PM, but 11:00 AM to 11:30 AM falls within the extremely high temperature period, then in subsequent processing, the strong light hours will be adjusted to 10:00 AM to 11:00 AM and 11:30 AM to 12:00 AM.

[0087] To more accurately understand the current environmental conditions, the actual ambient temperature is acquired in real time outdoors using devices such as a smartwatch's built-in temperature sensor. For example, the watch uses its own temperature sensing function to monitor the actual temperature of the surrounding environment in real time. When the actual ambient temperature exceeds the preset normal temperature range, it indicates that the current ambient temperature may be unfavorable for the polarized screen. At this time, the application of the excitation electric field parameters to the polarized screen is stopped, so that the polarized screen no longer enters polarization mode and maintains a relatively safe operating state. Continuing to apply the excitation electric field parameters may cause the screen to malfunction or accelerate component aging. Stopping the application protects the screen, extending its service life, and also avoids unnecessary energy consumption.

[0088] A smartwatch screen-off display system for extreme temperatures, the module diagram of the system is shown in the attached figure. Figure 4 As shown, the display system includes:

[0089] Data acquisition unit 1, used to determine the outdoor area that the user will visit during a preset first time period, and obtain the predicted light intensity of the outdoor area during the first time period;

[0090] Polarization configuration unit 2 is configured to select, based on the predicted light intensity, a period in the first time period during which the light intensity is within a preset high light range to obtain a strong light period, and to provide the smartwatch with a preset polarization screen composed of a multi-layer structure when the proportion of the strong light period in the first time period exceeds a preset ratio;

[0091] Based on the preset low-light interval, the predicted light intensity and the strong-light period, the polarization screen is configured with initial electric field parameters in the normal mode and excitation electric field parameters that can cause it to enter the polarization mode;

[0092] The screen-off configuration unit 3 is used to configure the screen-off display mode of the smart watch according to the screen parameters of the polarized screen in the normal mode and the polarized mode, so as to obtain a first screen-off display mode and a second screen-off display mode;

[0093] Implementation unit 4 is used to determine whether to apply excitation electric field parameters to the polarization screen in an outdoor area; if not, it operates in normal mode and causes the smart watch to display in the first screen-off display mode; if applied, it operates in polarization mode and causes the smart watch to display in the second screen-off display mode.

[0094] The present application also proposes a polarizing screen for use in the above-mentioned smartwatch screen-off display method. The polarizing screen is detachably mounted above the smartwatch screen. The polarizing screen comprises a first transparent electrode layer, a second transparent electrode layer, and a polarizing layer located between the first transparent electrode layer and the second transparent layer. The first transparent electrode layer and the second transparent layer cooperate with each other to apply an electric field to the polarizing layer. The polarizing layer is used to reduce the passage of light under the action of the electric field. Figure 5 In the figure, B1 is a smart watch, the first transparent electrode layer and the second transparent electrode layer are A1 and A2 respectively, and the polarizer layer is A3 located between the first transparent electrode layer and the second transparent electrode layer.

[0095] The present application provides a computer program product comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform a method for displaying a smartwatch screen off. The method for displaying a smartwatch screen off is applied to a computer program product to facilitate execution.

[0096] The present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of a smart watch screen-off display method as described above.

[0097] The computer storage medium of this application may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device, or device. This application applies a smart watch screen-off display method to a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, it implements the steps of the clothing simulation method provided in this application, which is simple, fast, easy to store, and not easily lost.

[0098] This application proposes a method, system, and polarized screen for a smartwatch's off-screen display. By applying an electric field to an external polarized screen, the system filters reflected light in a specific direction, reducing the amount of reflected light entering the smartwatch. This allows users to clearly see the off-screen display through the polarized screen even in bright sunlight, reducing glare interference and significantly improving the smartwatch's visibility in complex lighting environments. By filtering reflected light through the external polarized screen and comprehensively determining the appropriate electric field parameters for applying to the polarized screen based on various factors, the system reduces unnecessary energy consumption in low-light scenarios or when polarization is not required. The smartwatch can adjust the off-screen display brightness in real time based on actual light intensity and coordinate with the polarized screen's operating mode switching. When light intensity increases, the screen brightness is increased, and the polarized screen enters polarized mode as appropriate. When light intensity decreases, the brightness is reduced, and the polarized screen switches back to normal mode. This dynamic display strategy ensures a clear and comfortable visual experience for users in all lighting conditions.

[0099] Those skilled in the art will appreciate that the modules of the present application described above can be implemented using a general-purpose computing system. They can be centralized on a single computing system or distributed across a network of multiple computing systems. Alternatively, they can be implemented using program code executable by a computer system, so that they can be stored in a storage system and executed by the computing system. Alternatively, they can be fabricated into separate integrated circuit modules, or multiple modules or steps can be fabricated into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0100] Note that the above are only preferred embodiments of the present application and the technical principles employed. Those skilled in the art will understand that the present application is not limited to the specific embodiments herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present application. The scope of the present application is determined by the scope of the appended claims.

[0101] The above disclosure only describes several specific implementation scenarios of the present application. However, the present application is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present application.

Claims

1. A method for displaying a screen off of a smartwatch, characterized in that: include: Determining an outdoor area that the user will visit during a preset first time period, and obtaining a predicted light intensity of the outdoor area during the first time period; Based on the predicted light intensity, a period in which the light intensity is within a preset high light range within the first period is selected to obtain a strong light period, and when the proportion of the strong light period in the first period exceeds a preset ratio, a preset polarization screen composed of a multi-layer structure is provided externally to the smartwatch; Based on the preset low-light interval, the predicted light intensity and the strong-light period, the polarization screen is configured with initial electric field parameters in the normal mode and excitation electric field parameters that can cause it to enter the polarization mode; Configuring the screen-off display mode of the smartwatch according to the screen parameters of the polarized screen in the normal mode and the polarized mode respectively, to obtain a first screen-off display mode and a second screen-off display mode; In the outdoor area, determining whether to apply the excitation electric field parameters to the polarization screen; If not applied, it runs in normal mode and makes the smart watch display in the first screen-off display mode; if applied, it runs in polarization mode and makes the smart watch display in the second screen-off display mode.

2. The method for displaying the screen of a smart watch according to claim 1, wherein: Analyze whether it is suitable to obtain the actual light intensity at the current time based on the energy consumption data of the smart watch; If appropriate, determining whether to apply the excitation electric field parameters to the polarization screen by comparing the actual light intensity with the preset high light interval; If not, the excitation electric field parameters are applied to the polarization screen at least during the strong light period.

3. The method for displaying the screen of a smart watch according to claim 1, wherein: The first screen-off display mode includes: Obtaining actual light intensity and determining whether the actual light intensity is in the high light range: If not, adjust the brightness of the smartwatch's screen display according to the actual light intensity; If so, the screen-off display brightness of the smart watch is adjusted to a preset high-brightness range, or the second screen-off display mode is used for display and the excitation electric field parameters are applied to the polarized screen.

4. The method for displaying the screen of a smart watch according to claim 1, wherein: The polarizing screen has a multi-layer structure with a liquid crystal layer interspersed therebetween; Applying an electric field to the liquid crystal layer according to the excitation electric field parameters changes the arrangement direction of the liquid crystal molecules, so that the polarized screen only allows light with a specific polarization direction to pass through, reducing the reflected light entering the smart watch, allowing the user to observe the screen display content of the smart watch through the polarized screen.

5. The method for displaying the screen of a smart watch according to claim 1, wherein: The multi-layer structure of the polarizing screen has an electrochromic layer interspersed therebetween; An electric field is applied to the electrochromic layer according to the excitation electric field parameters to cause an oxidation-reduction reaction to change the optical properties, thereby absorbing and scattering light in a partial polarization direction, reducing the reflected light entering the smart watch, and allowing the user to observe the screen-off display content of the smart watch through the polarized screen.

6. The method for displaying the screen of a smart watch according to claim 1, wherein: The method further includes obtaining a predicted ambient temperature of the outdoor area during a first period of time; Analyze and predict whether the ambient temperature will exceed the preset normal temperature range during extreme temperature periods; If so, the extreme temperature period is excluded from at least the strong light period, and the actual ambient temperature is obtained in the outdoor area. When the actual ambient temperature exceeds the normal temperature range, application of the excitation electric field parameters to the polarization screen is stopped.

7. The method for displaying the screen of a smart watch according to claim 1, wherein: Predetermining the user's viewing posture for the smartwatch; When the light intensity is in the low light range, the initial electric field parameters are set so that the polarization effect of the polarizing screen on light is weakest, and the screen-off display mode of the smart watch is continuously adjusted until the screen-off display content of the smart watch can be clearly seen through the polarizing screen in the viewing posture, thereby obtaining a first screen-off display mode.

8. The method for displaying the screen of a smart watch according to claim 7, wherein: Find the maximum light intensity among the predicted light intensities. When the light intensity is at the maximum light intensity, continuously adjust the electric field parameters of the polarization screen and the screen-off display mode of the smart watch until the screen-off display content of the smart watch can be clearly seen through the polarization screen in the viewing posture, and determine the operating time and operating duration of the screen-off display mode in combination with the strong light period to obtain the excitation electric field parameters and the second screen-off display mode.

9. A smartwatch screen-off display system under extreme temperatures, characterized in that: include: a data acquisition unit, configured to determine an outdoor area that a user will visit during a preset first time period, and to acquire a predicted light intensity of the outdoor area during the first time period; a polarization configuration unit, configured to select, based on the predicted light intensity, a period in the first time period in which the light intensity is within a preset high light range to obtain a strong light period, and to provide the smartwatch with a preset polarization screen composed of a multi-layer structure when the proportion of the strong light period in the first time period exceeds a preset ratio; Based on the preset low-light interval, the predicted light intensity and the strong-light period, the polarization screen is configured with initial electric field parameters in the normal mode and excitation electric field parameters that can cause it to enter the polarization mode; a screen-off configuration unit, configured to configure a screen-off display mode of the smartwatch according to screen parameters of the polarized screen in the normal mode and the polarized mode, to obtain a first screen-off display mode and a second screen-off display mode; The implementation unit is used to determine whether to apply the excitation electric field parameters to the polarization screen in the outdoor area; if not, it operates in normal mode and causes the smart watch to display in the first screen-off display mode; if applied, it operates in polarization mode and causes the smart watch to display in the second screen-off display mode.

10. A polarizing screen, characterized in that: Used to implement the smart watch screen-off display method according to claim 1, the polarization screen is detachably arranged above the smart watch screen; The polarizing screen comprises a first transparent electrode layer, a second transparent electrode layer and a polarizer layer located between the first transparent electrode layer and the second transparent layer; The first transparent electrode layer and the second transparent layer cooperate with each other to apply an electric field to the polarizer layer; the polarizer layer is used to reduce the passage of light under the action of the electric field.

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