Method, device and readable storage medium for eliminating display screen ghosting

Abstract

The application provides a method, device and readable storage medium for eliminating display screen ghosting, which is applied to the technical field of vehicles. The method comprises the following steps: in the case that a streaming media rearview mirror starts a streaming media display mode, in response to the streaming media rearview mirror being in a preset temperature range, acquiring a first initial brightness of a screen of the streaming media rearview mirror and an initial light transmittance of dimming glass overlaid on the screen, the streaming media display mode being a mode capable of displaying images behind the vehicle; determining a first light transmittance of the dimming glass according to a target brightness of the streaming media rearview mirror, the first initial brightness and the initial light transmittance, the target brightness being greater than the first initial brightness and less than or equal to the highest brightness that the screen can reach, and the first light transmittance being less than the initial light transmittance of the dimming glass; adjusting the brightness of the screen to the target brightness and adjusting the light transmittance of the dimming glass to the first light transmittance. The method can shorten the time length of ghosting of the streaming media rearview mirror in a low-temperature environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, and more particularly, to a method and device for eliminating display screen ghosting and a readable storage medium. BACKGROUND

[0002] With the rapid development of display technology, liquid crystal display products are widely used. For example, liquid crystal display screens (LCDs) have low power consumption, small size, and low radiation, and are widely used in television screens, computer screens, and vehicle streaming rearview mirrors. The core of the LCD screen display is the change in the arrangement direction of liquid crystal molecules, that is, the activity of liquid crystal molecules. However, liquid crystal materials are very sensitive to the temperature of the environment. The lower the temperature, the slower the liquid crystal molecules will turn, which means that the response time of the LCD screen will be longer, that is, ghosting will occur, which will affect the display effect.

[0003] Therefore, how to reduce the response time of the LCD screen in a low-temperature environment is a problem that needs to be solved at present. SUMMARY

[0004] The present application provides a method, device and readable storage medium for eliminating display screen ghosting. The method can reduce the response time of the LCD screen in a low-temperature environment, thereby shortening the time during which the LCD screen appears ghosting and improving the display effect of the LCD screen.

[0005] In a first aspect, a method for eliminating display screen ghosting is provided. The method is applied to a streaming rearview mirror of a vehicle. The method includes: in a case where the streaming rearview mirror starts a streaming display mode, the streaming display mode being a mode in which the streaming rearview mirror can display an image of the rear of the vehicle, in response to the streaming rearview mirror being in a preset temperature range, obtaining a first initial brightness of a screen of the streaming rearview mirror and an initial light transmittance of a dimming glass overlaid on the screen; determining a first light transmittance of the dimming glass according to a target brightness of the streaming rearview mirror, the first initial brightness, and the initial light transmittance, the target brightness being greater than the first initial brightness and less than or equal to a maximum brightness that can be reached by the screen of the streaming rearview mirror, and the first light transmittance being less than the initial light transmittance of the dimming glass; adjusting the brightness of the screen to the target brightness and adjusting the light transmittance of the dimming glass to the first light transmittance.

[0006] In the technical solution, when the streaming rearview mirror is in the preset temperature range and the streaming display mode is started, the first initial brightness of the screen of the streaming rearview mirror and the initial light transmittance of the dimming glass overlaid on the screen are obtained, and the first light transmittance of the dimming glass is determined according to the target brightness of the streaming rearview mirror, the first initial brightness and the initial light transmittance, so that the brightness of the screen of the streaming rearview mirror is finally adjusted to the target brightness and the light transmittance of the dimming glass is finally adjusted to the first light transmittance. Since the target brightness is greater than the first initial brightness, after the brightness of the screen of the streaming rearview mirror is increased to the target brightness, the power consumption of the screen of the streaming rearview mirror is increased due to the increase of the brightness, that is, the temperature of the screen of the streaming rearview mirror is increased, so that the speed of liquid crystal molecule flipping of the screen of the streaming rearview mirror is accelerated, the response time of the screen of the streaming rearview mirror is reduced, that is, the time of the screen of the streaming rearview mirror appearing trailing is shortened, and the display effect of the screen of the streaming rearview mirror is improved. In addition, since the first light transmittance is less than the initial light transmittance, after the light transmittance of the dimming glass is reduced to the first light transmittance, the user does not obviously perceive the change of the screen brightness due to the reduction of the light transmittance, so that while the time of the screen of the streaming rearview mirror appearing trailing is shortened, the user's perception of discomfort caused by the increase of the screen brightness is avoided.

[0007] With reference to the first aspect and the above implementation manners, in some possible implementation manners, when the streaming rearview mirror starts the streaming display mode, before the first initial brightness of the screen of the streaming rearview mirror and the initial light transmittance of the dimming glass overlaid on the screen are obtained in response to the streaming rearview mirror being in the preset temperature range, the method further includes: obtaining a first temperature of the streaming rearview mirror, the first temperature being the temperature of the streaming rearview mirror when the streaming display mode is started; and determining that the streaming rearview mirror is in the preset temperature range when the first temperature is less than a temperature threshold.

[0008] With reference to the first aspect and the above implementation manners, in some possible implementation manners, the first light transmittance of the dimming glass is determined according to the target brightness of the streaming rearview mirror, the first initial brightness and the initial light transmittance, including: determining a brightness ratio according to the first initial brightness and the target brightness; and determining the first light transmittance according to the brightness ratio and the initial light transmittance.

[0009] With reference to the first aspect and the above implementation manners, in some possible implementation manners, the brightness of the screen is adjusted to the target brightness and the light transmittance of the dimming glass is adjusted to the first light transmittance, including: determining a brightness adjustment value of the screen of the streaming rearview mirror according to the target brightness and the first initial brightness; determining a light transmittance adjustment value of the dimming glass according to the first light transmittance and the initial light transmittance; and adjusting the brightness of the screen to the target brightness according to the brightness adjustment value, and adjusting the light transmittance of the dimming glass to the first light transmittance according to the light transmittance adjustment value.

[0010] In some possible implementation manners, according to the first transmittance and the initial transmittance, the transmittance adjustment value of the dimming glass is determined, including: determining whether the first transmittance is less than a minimum transmittance of the dimming glass; in a case where the first transmittance is less than the minimum transmittance, determining the transmittance adjustment value according to the minimum transmittance and the initial transmittance, and taking the minimum transmittance as the first transmittance; and in a case where the first transmittance is greater than the minimum transmittance, determining the transmittance adjustment value according to the first transmittance and the initial transmittance.

[0011] It should be noted that the transmittance of the dimming glass can generally be adjusted only within a calibrated transmittance range, in other words, the dimming glass has a minimum transmittance and a maximum transmittance. Considering that the determined first transmittance may be less than the minimum transmittance of the dimming glass, that is, in this case, the transmittance of the dimming glass cannot be adjusted to the first transmittance, and at the lowest, the transmittance of the dimming glass can only be reduced to the minimum transmittance, therefore, after the first transmittance is determined, that is, when the transmittance adjustment value of the dimming glass is determined according to the first transmittance and the initial transmittance, the size relationship between the first transmittance and the minimum transmittance of the dimming glass can be determined first, so that in a case where the first transmittance is less than the minimum transmittance, the transmittance adjustment value is determined according to the minimum transmittance and the initial transmittance, and the minimum transmittance is taken as the first transmittance; and in a case where the first transmittance is greater than the minimum transmittance, the transmittance adjustment value is determined according to the first transmittance and the initial transmittance, thereby ensuring the accuracy of the determined transmittance adjustment value, that is, ensuring that the transmittance of the dimming glass can be subsequently adjusted to the first transmittance.

[0012] In some possible implementation manners, the method further includes: in a case where the first transmittance is less than the minimum transmittance, displaying prompt information, the prompt information being used to prompt that the streaming rearview mirror is currently in a warming-up state.

[0013] In the above technical solution, in a case where the first transmittance is less than the minimum transmittance of the dimming glass, the transmittance of the dimming glass cannot be reduced to the first transmittance, and at the lowest, the transmittance of the dimming glass can only be reduced to the minimum transmittance, that is, in a case where the first transmittance is less than the minimum transmittance, it cannot be ensured that the length of time for which the screen of the streaming rearview mirror appears to be trailing is shortened while the brightness of the screen of the streaming rearview mirror does not change significantly, that is, the user will perceive that the screen brightness is significantly increased. Therefore, in this case, information prompting that the streaming rearview mirror is currently in a warming-up state can be displayed, so that the user can better understand the reason why the screen brightness is significantly increased, thereby improving the driving experience.

[0014] In some possible implementation manners, after the brightness of the screen is adjusted to the target brightness and the transmittance of the dimming glass is adjusted to the first transmittance, the method further includes: obtaining a second temperature of the streaming rearview mirror, the second temperature being a temperature after the brightness of the screen is adjusted to the target brightness; and in a case where the second temperature is equal to or greater than the temperature threshold, adjusting the screen to the first initial brightness and adjusting the transmittance of the dimming glass to the initial transmittance.

[0015] In the technical solution, after the brightness of the screen is adjusted to the target brightness and the transmittance of the dimming glass is adjusted to the first transmittance, the temperature of the streaming rearview mirror after the brightness of the screen is adjusted to the target brightness (the second temperature) can be obtained, and the second temperature is compared with the temperature threshold, so that in a case where the second temperature is equal to or greater than the temperature threshold, that is, in a case where the streaming rearview mirror is not in the preset temperature range and can normally display an image, the screen of the streaming rearview mirror is restored to the brightness before adjustment, and the transmittance of the dimming glass is restored to the transmittance before adjustment, that is, the screen is adjusted to the first initial brightness and the transmittance of the dimming glass is adjusted to the initial transmittance, so as to reduce the power consumption of the screen of the streaming rearview mirror.

[0016] In some possible implementation manners, after the brightness of the screen is adjusted to the target brightness and the transmittance of the dimming glass is adjusted to the first transmittance, the method further includes: obtaining a second temperature of the streaming rearview mirror, the second temperature being a temperature after the brightness of the screen is adjusted to the target brightness; and in a case where the second temperature is equal to or greater than the temperature threshold, obtaining an ambient light intensity in which the streaming rearview mirror is located; determining a second initial brightness of the screen and a second transmittance of the dimming glass corresponding to the ambient light intensity according to a preset relationship corresponding table; and adjusting the screen to the second initial brightness and adjusting the transmittance of the dimming glass to the second transmittance.

[0017] It should be noted that, in the case that the second temperature is equal to or greater than the temperature threshold, that is, in the case that the streaming rearview mirror cannot normally display images in the preset temperature range, considering that the ambient light intensity in which the streaming rearview mirror is located may change compared to the ambient light intensity when the streaming rearview mirror is in the preset temperature range, in order to ensure that the screen brightness of the streaming rearview mirror can adapt to the ambient light intensity in which the streaming rearview mirror is located, in other words, in order to avoid the case that the screen brightness of the streaming rearview mirror is too high or too low to affect the user experience, in a possible implementation manner, in the case that the second temperature is equal to or greater than the temperature threshold, the ambient light intensity in which the streaming rearview mirror is located can be obtained; according to a preset correspondence table, the second initial brightness of the screen and the second light transmittance of the dimming glass corresponding to the ambient light intensity are determined, and the screen is adjusted to the second initial brightness corresponding to the ambient light intensity, and the light transmittance of the dimming glass is adjusted to the second light transmittance corresponding to the ambient light intensity, so as to ensure that the screen brightness of the streaming rearview mirror can adapt to the ambient light intensity in which the streaming rearview mirror is located, and avoid the case that the screen brightness of the streaming rearview mirror is too high or too low to affect the user experience.

[0018] In a second aspect, a device for eliminating display screen ghosting is provided. The device is applied to a streaming rearview mirror of a vehicle. The device comprises: a response module configured to, in response to the streaming rearview mirror starting a streaming display mode, obtain a first initial brightness of a screen of the streaming rearview mirror and an initial light transmittance of dimming glass overlaid on the screen, in response to the streaming rearview mirror being in a preset temperature range. The streaming display mode is a mode in which the streaming rearview mirror can display images of a rear of the vehicle; a determination module configured to determine a first light transmittance of the dimming glass according to a target brightness of the streaming rearview mirror, the first initial brightness and the initial light transmittance. The target brightness is greater than the first initial brightness and less than or equal to a maximum brightness that can be reached by the screen of the streaming rearview mirror. The first light transmittance is less than the initial light transmittance of the dimming glass; and an adjustment module configured to adjust the brightness of the screen to the target brightness and adjust the light transmittance of the dimming glass to the first light transmittance.

[0019] With reference to the second aspect and the foregoing implementation manners, in some possible implementation manners, the device further comprises an obtaining module configured to obtain a first temperature of the streaming rearview mirror. The first temperature is a temperature when the streaming rearview mirror starts the streaming display mode. The determination module is further configured to determine that the streaming rearview mirror is in the preset temperature range in the case that the first temperature is less than a temperature threshold.

[0020] With reference to the second aspect and the foregoing implementation manners, in some possible implementation manners, the determination module is specifically configured to determine a brightness ratio according to the first initial brightness and the target brightness; and determine the first light transmittance according to the brightness ratio and the initial light transmittance.

[0021] In some possible implementation manners, in combination with the second aspect and the foregoing implementation manners, the determining module is specifically further configured to determine, according to the target brightness and the first initial brightness, a brightness adjustment value of the screen of the streaming rearview mirror; and determine, according to the first light transmittance and the initial light transmittance, a light transmittance adjustment value of the dimming glass; and the adjusting module is specifically configured to adjust the brightness of the screen to the target brightness according to the brightness adjustment value, and adjust the light transmittance of the dimming glass to the first light transmittance according to the light transmittance adjustment value.

[0022] In some possible implementation manners, in combination with the second aspect and the foregoing implementation manners, the determining module is specifically further configured to determine, according to the first light transmittance and the initial light transmittance, the light transmittance adjustment value in a case where the first light transmittance is less than the minimum light transmittance of the dimming glass, and take the minimum light transmittance as the first light transmittance; and determine, according to the first light transmittance and the initial light transmittance, the light transmittance adjustment value in a case where the first light transmittance is greater than the minimum light transmittance.

[0023] In some possible implementation manners, in combination with the second aspect and the foregoing implementation manners, the apparatus further includes a display module configured to display prompt information in a case where the first light transmittance is less than the minimum light transmittance, the prompt information being used to prompt that the streaming rearview mirror is currently in a warming-up state.

[0024] In some possible implementation manners, in combination with the second aspect and the foregoing implementation manners, the obtaining module is further configured to obtain a second temperature of the streaming rearview mirror, the second temperature being a temperature after the brightness of the screen is adjusted to the target brightness; and the adjusting module is further configured to adjust the screen to the first initial brightness and adjust the light transmittance of the dimming glass to the initial light transmittance in a case where the second temperature is equal to or greater than the temperature threshold.

[0025] In some possible implementation manners, in combination with the second aspect and the foregoing implementation manners, the obtaining module is further configured to obtain a second temperature of the streaming rearview mirror, the second temperature being a temperature after the brightness of the screen is adjusted to the target brightness; and obtain an ambient light intensity in a case where the second temperature is equal to or greater than the temperature threshold; the determining module is further configured to determine, according to a preset relationship corresponding table, a second initial brightness of the screen and a second light transmittance of the dimming glass corresponding to the ambient light intensity; and the adjusting module is further configured to adjust the screen to the second initial brightness and adjust the light transmittance of the dimming glass to the second light transmittance.

[0026] In a third aspect, a computer program product is provided, which includes computer program code, when the computer program code is executed on a computer, causes the computer to execute the method for eliminating a display screen ghosting in the foregoing first aspect or any possible implementation manner of the first aspect.

[0027] In a fifth aspect, a computer-readable storage medium is provided, which stores computer program codes, when the computer program codes are run on a computer, the computer is caused to execute the method for eliminating display screen ghosting according to the first aspect or any possible implementation manner of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a side view structural schematic diagram of a streaming rearview mirror of a vehicle provided by an embodiment of the present application.

[0029] Figure 2 is a side view structural diagram of a display screen module of a streaming rearview mirror provided by an embodiment of the present application.

[0030] Figure 3 is a schematic flow chart of a method for eliminating display screen ghosting provided by an embodiment of the present application.

[0031] Figure 4 is a structural schematic diagram of an apparatus for eliminating display screen ghosting provided by an embodiment of the present application.

[0032] Figure 5 is a structural schematic diagram of a streaming rearview mirror provided by an embodiment of the present application. DETAILED DESCRIPTION

[0033] The technical solutions in the present application will be described in detail below with reference to the drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B: "and / or" in the text only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0034] Hereinafter, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features.

[0035] Figure 1 is a side view structural schematic diagram of a streaming rearview mirror of a vehicle provided by an embodiment of the present application.

[0036] As shown in an example, Figure 1 the streaming rearview mirror 100 includes a display screen module 101 (which can be understood as a screen of the streaming rearview mirror), a dimming glass 102 (which can also be referred to as an electric control liquid crystal glass or an electric control dimming glass), and a cover glass 103.

[0037] Among them, when the streaming rearview mirror 100 is used Figure 1 When placed horizontally as shown, the dimming glass 102 covers the display module 101 to adjust the light transmittance of the display module 101. It should be noted that the dimming glass 102 is a type of glass whose transparency can be changed electronically (by voltage). Specifically, the light transmittance of the dimming glass 102 is usually directly related to the voltage applied to it; that is, when there is no voltage, the dimming glass 102 is opaque with very low light transmittance close to zero. As the voltage increases, the light transmittance of the dimming glass 102 increases accordingly.

[0038] The cover glass 103 covers the dimming glass 102 to protect the dimming glass 102 and the display module 101 from damage.

[0039] Optionally, the material of the cover glass 103 can be soda lime, aluminosilicate, sodium calcium silicon or other transparent organic materials, etc., and this application embodiment does not limit this.

[0040] In one possible implementation, such as Figure 2 As shown, the display module 101 includes a backlight 1011 and a liquid crystal display (LCD) 1012. The backlight 1011 is located below the LCD 1012 and is used to illuminate the LCD 1012, that is, to provide a light source for the LCD 1012 so that the LCD can display a clear image.

[0041] Optionally, the backlight 1011 can be any one of a light-emitting diode (LED), an organic light-emitting diode (OLED), or a micro light-emitting diode (Micro LED), etc., and this application embodiment does not limit it.

[0042] It's important to note that the core of LCD display imaging is the "change in the alignment of liquid crystal molecules," that is, the movement of liquid crystal molecules. However, liquid crystal materials are very sensitive to ambient temperature. The lower the temperature, the slower the liquid crystal molecules flip, which means the response time of the LCD screen will increase, resulting in ghosting and affecting the display effect.

[0043] Therefore, how to reduce the response time of LCD screens in low-temperature environments is a problem that urgently needs to be solved.

[0044] Based on the above problems, the application provides a method for eliminating display screen lag, which can reduce the response time of the liquid crystal display screen in a low temperature environment, thereby shortening the time of the liquid crystal display screen appearing lag and improving the display effect of the liquid crystal display screen.

[0045] It should be understood that the method for eliminating display screen lag provided by the embodiments of the application can be applied to a vehicle configured with a streaming rearview mirror, and in particular can be applied to, for example Figure 1 the streaming rearview mirror 100 shown in the figure.

[0046] The method provided by the embodiments of the application will be described in detail below. Figure 3 The method provided by the embodiments of the application will be described in detail below.

[0047] Figure 3 is a schematic flow chart of a method for eliminating display screen lag provided by the embodiments of the application, which is applied to Figure 1 the streaming rearview mirror 100 shown in the figure.

[0048] For example, as Figure 3 shown in the figure, the method 300 includes the following steps 301-304.

[0049] Step 301, in the case that the streaming rearview mirror starts the streaming display mode, it is judged whether the streaming rearview mirror is in a preset temperature range.

[0050] The streaming rearview mirror usually has two working modes: a traditional physical mirror mode and a streaming display mode.

[0051] Optionally, the user can manually switch the above two modes through a physical button configured on the streaming rearview mirror, or can manually switch the above two modes through a virtual button configured on the central control screen of the vehicle, and the embodiments of the application do not limit this. In addition, the vehicle can also automatically switch the above two modes according to the vehicle state (for example, reversing, high-speed driving, etc.).

[0052] It should be noted that in the physical mirror mode, the function of the streaming rearview mirror is the same as that of the traditional vehicle interior rearview mirror, that is, the mirror surface reflection is used to provide the driver with the view of the rear of the vehicle, but the display view is small due to the limitation of the vehicle body structure and the rear seat passengers; in the streaming display mode, the streaming rearview mirror captures the image of the rear of the vehicle in real time through the camera installed at the tail of the vehicle, and displays the image on the liquid crystal display screen to provide the user with a wider view of the rear of the vehicle.

[0053] It should be understood that the method provided in the application is to improve the brightness of the screen of the streaming rearview mirror and reduce the light transmittance of the dimming glass when the streaming rearview mirror is in a preset temperature range and the streaming display mode is started, so as to ensure that the user does not obviously perceive the change of the screen brightness, that is, to ensure that the time length of the screen of the streaming rearview mirror appearing trailing is shortened, and the user's perception is not affected due to the increase of the screen brightness. Therefore, when the method provided in the application is implemented, it is necessary to determine whether the streaming rearview mirror is in the preset temperature range when the streaming rearview mirror starts the streaming display mode.

[0054] It can be understood that the preset temperature range is a temperature range in which the streaming rearview mirror can appear trailing when the streaming display mode is started.

[0055] In a possible implementation, the temperature of the streaming rearview mirror when the streaming display mode is started, that is, the first temperature, can be obtained, and whether the streaming rearview mirror is in the preset temperature range can be determined based on the size relationship between the first temperature and the temperature threshold.

[0056] The temperature threshold is set by the developer according to experimental data, for example, the temperature threshold can be -5°C, -10°C or -15°C, and the application does not limit this.

[0057] The first temperature of the streaming rearview mirror can be measured by an internal temperature sensor or an external temperature sensor arranged on the streaming rearview mirror, and the application does not limit this.

[0058] Specifically, after obtaining the first temperature of the streaming rearview mirror, the size of the first temperature and the temperature threshold can be compared, so that when the first temperature is less than the temperature threshold, it is determined that the streaming rearview mirror is in the preset temperature range.

[0059] For example, when the first temperature of the streaming rearview mirror obtained is -15°C and the temperature threshold is -10°C, the size of the first temperature (-15°C) of the streaming rearview mirror and the temperature threshold (-10°C) can be compared. Since the first temperature (-15°C) of the streaming rearview mirror is less than the temperature threshold (-10°C), it can be determined that the streaming rearview mirror is in the preset temperature range.

[0060] Step 302, when the streaming rearview mirror is in the preset temperature range, the first initial brightness of the screen of the streaming rearview mirror and the initial light transmittance of the dimming glass overlaid on the screen are obtained.

[0061] It should be understood that the screen of the streaming rearview mirror isFigure 1 The display screen module 101 shown in the figure, the light-adjustable glass covering the screen is Figure 1 The light-adjustable glass 103 shown in the figure.

[0062] The first initial brightness is the brightness of the screen when the streaming rearview mirror is in the preset temperature range; and the initial light transmittance is the light transmittance of the light-adjustable glass when the streaming rearview mirror is in the preset temperature range.

[0063] In a possible implementation, the first initial brightness and the initial light transmittance can be obtained by: obtaining the ambient light intensity in which the streaming rearview mirror is located; and determining the first initial brightness and the initial light transmittance corresponding to the ambient light intensity according to a preset relationship correspondence table.

[0064] The ambient light intensity in which the streaming rearview mirror is located can be measured by an ambient light sensor.

[0065] Specifically, the developer can store a preset ambient light intensity-initial brightness, initial light transmittance relationship correspondence table in the vehicle, in which the greater the ambient light intensity, the greater the initial brightness of the screen and the initial light transmittance of the light-adjustable glass. After obtaining the ambient light intensity in which the streaming rearview mirror is located, the ambient light intensity can be used to look up the relationship correspondence table to obtain the initial brightness of the screen and the initial light transmittance of the light-adjustable glass when the streaming rearview mirror is in the preset temperature range.

[0066] For example, the ambient light intensity-initial brightness, initial light transmittance relationship correspondence table can be shown in Table 1 as follows:

[0067] Table 1

[0068] Ambient light intensity Initial luminance Initial light transmittance 50 lux 300 cd / m 2 ]] 50％ …… …… …… 500 lux 600 cd / m 2 ]] 60％ …… …… …… 1000 lux 1500 cd / m 2 ]] 75％ …… …… ……

[0069] As can be seen from Table 1 above, the ambient light intensity (50 lux) in which the streaming rearview mirror is located corresponds to the initial brightness (300 cd / m 2 ) of the screen and the initial light transmittance (50%) of the light-adjustable glass; the ambient light intensity (500 lux) in which the streaming rearview mirror is located corresponds to the initial brightness (600 cd / m 2 ) of the screen and the initial light transmittance (60%) of the light-adjustable glass; the ambient light intensity (1000 lux) in which the streaming rearview mirror is located corresponds to the initial brightness (1500 cd / m 2 ) of the screen and the initial light transmittance (75%) of the light-adjustable glass, and so on.

[0070] It should be noted that since the light transmittance of the dimming glass can only be adjusted within the range of the calibrated light transmittance in general, in other words, the dimming glass has a minimum light transmittance and a maximum light transmittance, the initial light transmittance of the dimming glass corresponding to the ambient light intensity in Table One above will always be not greater than the maximum light transmittance of the dimming glass and will not be less than the minimum light transmittance of the dimming glass.

[0071] In step 303, a first light transmittance of the dimming glass is determined according to the target brightness of the streaming rearview mirror, the first initial brightness and the initial light transmittance, the target brightness being greater than the first initial brightness and less than or equal to the highest brightness that the screen of the streaming rearview mirror can reach, and the first light transmittance being less than the initial light transmittance of the dimming glass.

[0072] The target brightness greater than the first initial brightness can make the power consumption of the screen of the streaming rearview mirror increased after the screen brightness is adjusted to the target brightness, so as to accelerate the flipping speed of the liquid crystal molecules of the screen of the streaming rearview mirror as soon as possible and shorten the time length of the screen of the streaming rearview mirror appearing trailing. It can be understood that the highest brightness that the screen of the streaming rearview mirror can reach is pre-stored in the internal memory of the vehicle.

[0073] In a possible implementation, the developer can store a preset first initial brightness-target brightness corresponding table in the vehicle, in which the greater the first initial brightness, the greater the corresponding target brightness, and it can be understood that the target brightness will not exceed the highest brightness that the screen of the streaming rearview mirror can reach. Specifically, after the first initial brightness of the screen of the streaming rearview mirror is obtained, the first initial brightness-target brightness corresponding table can be searched based on the first initial brightness to obtain the target brightness of the streaming rearview mirror.

[0074] For example, the first initial brightness-target brightness corresponding table can be shown in Table Two as follows:

[0075] Table Two

[0076] First initial luminance Target luminance 300 cd / m 2 ]]> 1000 cd / m 2 ]] …… …… 600 cd / m 2 ]] 1300 cd / m 2 ]] …… …… 900 cd / m 2 ]] 1600 cd / m 2 ]] …… …… 1800 cd / m 2 ]] 2400 cd / m 2 ]] …… …… 2100 cd / m 2 ]] 2400 cd / m 2 ]]

[0077] As can be seen from Table Two above, the first initial brightness (300 cd / m 2 ) of the streaming rearview mirror corresponds to the target brightness (1000 cd / m 2 ); the first initial brightness (600 cd / m 2 ) of the streaming rearview mirror corresponds to the target brightness (1300 cd / m 2 ); the first initial brightness (900 cd / m 2 ) of the streaming rearview mirror corresponds to the target brightness (1600 cd / m 2 ); and the first initial brightness (1800 cd / m2 Corresponding target brightness (2400 cd / m²) 2 The initial brightness of the streaming rearview mirror (2100 cd / m²) 2 Corresponding target brightness (2400 cd / m²) 2 And so on, and as shown in Table 2 above, the highest brightness that the streaming rearview mirror screen can achieve is 2400 cd / m². 2 .

[0078] In another possible implementation, the target brightness can always be the highest brightness that the streaming rearview mirror screen can achieve, so that the power consumption of the streaming rearview mirror screen can be maximized, thereby shortening the duration of ghosting on the streaming rearview mirror screen as quickly as possible.

[0079] In one possible implementation, after obtaining the target brightness, the first initial brightness, and the initial transmittance of the streaming rearview mirror, a transmittance that is less than the initial transmittance of the dimming glass can be obtained based on the target brightness, the first initial brightness, and the initial transmittance, i.e., the first transmittance.

[0080] The following details how to obtain the first transmittance based on the target brightness, the first initial brightness, and the initial transmittance.

[0081] In one possible implementation, the brightness ratio can be determined first based on the first initial brightness and the target brightness, and then the first transmittance can be determined based on the brightness ratio and the initial transmittance.

[0082] It is understandable that since the target brightness is greater than the first initial brightness, the ratio of the first initial brightness to the target brightness is less than 1, that is, the brightness ratio is less than 1. Therefore, the first transmittance obtained by multiplying the brightness ratio by the initial transmittance is less than the initial transmittance.

[0083] For example, when the initial luminance is 300 cd / m² 2 The target brightness is 2400 cd / m². 2 When the initial transmittance is 50%, the first initial luminance (300 cd / m²) can be determined first. 2 ) and target brightness (2400 cd / m 2 The ratio of 300 cd / m² (luminance ratio), i.e., luminance ratio = 300 cd / m² 2 / 2400cd / m 2 =0.125, then multiply the brightness ratio (0.125) by the initial transmittance (50%) to get the first transmittance, that is, the first transmittance = 0.125 × 50% ≈ 6%, the first transmittance (6%) is less than the initial transmittance (50%).

[0084] For example, when the first initial luminance is 1500 cd / m 2 , the target luminance is 2400 cd / m 2 , and the initial light transmittance is 75%, the ratio of the first initial luminance (1500 cd / m 2 ) to the target luminance (2400 cd / m 2 ) can be determined, i.e., the luminance ratio = 1500 cd / m 2 / 2400 cd / m 2 = 0.625, and then the luminance ratio (0.625) is multiplied by the initial light transmittance (75%) to obtain the first light transmittance, i.e., the first light transmittance = 0.625 x 75% = 47.5%, which is less than the initial light transmittance (75%).

[0085] As can be seen from the above examples, the light transmittance of the dimming glass can generally be adjusted only within the calibrated light transmittance range, i.e., the dimming glass has a minimum light transmittance and a maximum light transmittance. In the embodiments of the present application, it is considered that the light transmittance (first light transmittance) obtained according to the target luminance, the first initial luminance, and the initial light transmittance may be less than the minimum light transmittance of the dimming glass, i.e., in this case, the initial light transmittance of the dimming glass cannot be reduced to the first light transmittance, and at the lowest, the light transmittance of the dimming glass can only be reduced to the minimum light transmittance. Therefore, after determining the first light transmittance according to the target luminance, the first initial luminance, and the initial light transmittance, i.e., before adjusting the light transmittance of the dimming glass to the first light transmittance, the size relationship between the determined first light transmittance and the minimum light transmittance of the dimming glass can be determined first, so that in the case that the first light transmittance is less than the minimum light transmittance, the minimum light transmittance is taken as the final first light transmittance, and in the case that the first light transmittance is greater than the minimum light transmittance, the first light transmittance is taken as the final first light transmittance, so as to ensure that the initial light transmittance of the dimming glass can be adjusted to the first light transmittance. It can be understood that the minimum light transmittance and the maximum light transmittance of the dimming glass are pre-stored in the internal memory of the vehicle.

[0086] For example, when the minimum light transmittance of the dimming glass is 10%, and the first light transmittance obtained according to the target luminance, the first initial luminance, and the initial light transmittance is 6%, since the first light transmittance (6%) is less than the minimum light transmittance (10%) of the dimming glass at this time, in this case, the minimum light transmittance (10%) of the dimming glass needs to be taken as the first light transmittance, so as to ensure that the initial light transmittance of the dimming glass can be adjusted to the first light transmittance.

[0087] Step 304, adjusting the luminance of the screen to the target luminance and adjusting the light transmittance of the dimming glass to the first light transmittance.

[0088] For example, when the first initial luminance is 1500 cd / m2 With an initial transmittance of 75% and a target brightness of 2400 cd / m², 2 When the initial light transmittance is 47%, the screen brightness of the streaming rearview mirror can be increased from the initial brightness (1500 cd / m²). 2 Increase to target brightness (2400 cd / m²) 2 The transmittance of the dimming glass was reduced from the initial transmittance (75%) to the first transmittance (47%).

[0089] In summary, the method for eliminating display ghosting provided in this application embodiment can, when the streaming media rearview mirror is within a preset temperature range and the streaming media display mode is activated, obtain the first initial brightness of the streaming media rearview mirror screen and the initial transmittance of the dimming glass covering the screen. Based on the target brightness of the streaming media rearview mirror, the first initial brightness, and the initial transmittance, the first transmittance of the dimming glass is determined, so that the brightness of the streaming media rearview mirror screen is ultimately adjusted to the target brightness and the transmittance of the dimming glass is adjusted to the first transmittance. Since the target brightness is greater than the first initial brightness, after increasing the brightness of the streaming media rearview mirror screen to the target brightness, the increased brightness leads to increased power consumption of the streaming media rearview mirror screen, which in turn increases the screen temperature. This accelerates the flipping speed of the liquid crystal molecules in the streaming media rearview mirror screen, reduces the response time of the streaming media rearview mirror screen, and shortens the duration of ghosting on the screen, thereby improving the display effect of the streaming media rearview mirror screen. In addition, since the first transmittance is less than the initial transmittance, after reducing the transmittance of the dimming glass to the first transmittance, the user will not notice the change in screen brightness due to the reduction in transmittance. This ensures that while shortening the duration of ghosting on the streaming rearview mirror screen, it also avoids user discomfort caused by increased screen brightness.

[0090] In one possible implementation, step 304, adjusting the screen brightness to the target brightness and adjusting the light transmittance of the dimming glass to a first light transmittance, may specifically include the following steps:

[0091] Step 1: Determine the brightness adjustment value of the streaming rearview mirror screen based on the target brightness and the initial brightness.

[0092] Specifically, after obtaining the initial brightness and the target brightness, the target brightness can be subtracted from the initial brightness to obtain the brightness adjustment value of the streaming rearview mirror screen.

[0093] For example, when the target brightness is 2400 cd / m² 2 The initial brightness is 1500 cd / m². 2 At that time, the target brightness (2400 cd / m²) can be...2 ) minus the first initial brightness (1500 cd / m 2 ), i.e. 2400 cd / m 2 - 1500 cd / m 2 = 900 cd / m 2 , and the obtained difference (900 cd / m 2 ) is taken as the brightness adjustment value of the screen of the streaming rearview mirror.

[0094] Wherein, the brightness adjustment value is negative value, indicating to reduce the brightness of the screen; the brightness adjustment value is positive value, indicating to increase the brightness of the screen.

[0095] Step two, determining the transmittance adjustment value of the dimming glass according to the first transmittance and the initial transmittance.

[0096] Specifically, after obtaining the first transmittance and the initial transmittance, the first transmittance can be subtracted by the initial transmittance to obtain the transmittance adjustment value of the dimming glass.

[0097] For example, when the first transmittance is 47% and the initial transmittance is 75%, the first transmittance (47%) can be subtracted by the initial transmittance (75%), i.e. 47%-75%= -28%. And the obtained difference (-28%) is taken as the transmittance adjustment value of the dimming glass.

[0098] Wherein, the transmittance adjustment value is positive value, indicating to reduce the transmittance of the dimming glass; the transmittance adjustment value of the dimming glass is positive value, indicating to increase the transmittance of the dimming glass.

[0099] It can be understood that, from the above embodiment, in the case that the transmittance (the first transmittance) obtained according to the target brightness, the first initial brightness and the initial transmittance is less than the minimum transmittance of the dimming glass, the minimum transmittance will be taken as the final first transmittance. Therefore, in the case that the minimum transmittance is taken as the final first transmittance, determining the transmittance adjustment value of the dimming glass according to the first transmittance and the initial transmittance can be understood as determining the transmittance adjustment value of the dimming glass according to the minimum transmittance of the dimming glass and the initial transmittance.

[0100] Step three, adjusting the brightness of the screen to the target brightness according to the brightness adjustment value, and adjusting the transmittance of the dimming glass to the first transmittance according to the transmittance adjustment value.

[0101] Specifically, after determining the brightness adjustment value of the screen of the streaming rearview mirror and the transmittance adjustment value of the dimming glass, the vehicle controller sends the brightness adjustment value and the transmittance adjustment value to the streaming rearview mirror controller, so that the streaming rearview mirror controller adjusts the brightness of the screen of the streaming rearview mirror to the target brightness and adjusts the transmittance of the dimming glass of the streaming rearview mirror to the first transmittance after receiving the brightness adjustment value and the transmittance adjustment value.

[0102] For example, when the brightness adjustment value is 900 cd / m 2 , the transmittance adjustment value is -28%, the target brightness of the screen is 2400 cd / m 2 , the first initial brightness of the screen is 1500 cd / m 2 , the initial transmittance of the dimming glass is 75%, and the first transmittance of the dimming glass is 47%, the vehicle controller sends the brightness adjustment value (900 cd / m 2 ) and the transmittance adjustment value (-28%) to the streaming rearview mirror controller. After receiving the brightness adjustment value (900 cd / m 2 ) and the transmittance adjustment value (-28%), the streaming rearview mirror controller increases the brightness of the screen of the streaming rearview mirror from the first initial brightness (1500 cd / m 2 ) to the target brightness (2400 cd / m 2 ) according to the brightness adjustment value (900 cd / m 2 ), and reduces the transmittance of the dimming glass from the initial transmittance (75%) to the first transmittance (47%) according to the transmittance adjustment value (-28%).

[0103] It should be noted that from the above embodiment, it can be seen that the transmittance obtained according to the target brightness, the first initial brightness, and the initial transmittance may be less than the minimum transmittance of the dimming glass. In this case, it is not possible to reduce the transmittance of the dimming glass to the first transmittance, and at the lowest, the transmittance of the dimming glass can only be reduced to the minimum transmittance. From the above embodiment, it can be seen that in order to ensure that the initial transmittance of the dimming glass can be adjusted to the first transmittance, the minimum transmittance is taken as the final first transmittance in this case. That is, in this case, it cannot be guaranteed that the length of time during which the screen of the streaming rearview mirror appears to be trailing is shortened while the user does not obviously perceive a change in screen brightness, that is, the user's perception will be affected. Therefore, in this case, information (prompt information) indicating that the streaming rearview mirror is currently in a warming-up state can be displayed, so that the user can better understand the reason for the significant increase in screen brightness through the prompt information, thereby improving the driving experience.

[0104] For example, the prompt information can be "the streaming rearview mirror is currently in a warming state to shorten the time length of screen trailing, and the screen brightness will be reduced later", or "the streaming rearview mirror is currently in a warming state to shorten the time length of screen trailing, and the screen brightness will be reduced later", and the like, which are not limited in the embodiments of the present application.

[0105] Optionally, the prompt information can be displayed on the central control screen of the vehicle, or can be displayed on the streaming rearview mirror, which are not limited in the embodiments of the present application.

[0106] In a possible implementation, after the brightness of the screen is adjusted to the target brightness and the light transmittance of the dimming glass is adjusted to the first light transmittance, the temperature of the streaming rearview mirror after the brightness of the screen is adjusted to the target brightness, i.e. the second temperature, can be obtained, and the second temperature is compared with the temperature threshold, so that in the case that the second temperature is equal to or greater than the temperature threshold, i.e. in the case that the streaming rearview mirror is not in the preset temperature range and can normally display images, the screen of the streaming rearview mirror is restored to the brightness before adjustment, and the light transmittance of the dimming glass is restored to the light transmittance before adjustment, i.e. the screen is adjusted to the first initial brightness and the light transmittance of the dimming glass is adjusted to the initial light transmittance, so as to reduce the power consumption of the screen of the streaming rearview mirror.

[0107] The implementation of obtaining the second temperature can refer to the implementation of obtaining the first temperature in the above embodiments, which will not be repeated here.

[0108] For example, when the obtained second temperature is -9℃ and the temperature threshold is -10℃, the first and second temperatures (-9℃) of the streaming rearview mirror can be compared with the temperature threshold (-10℃), and since the second temperature (-9℃) of the streaming rearview mirror is greater than the temperature threshold (-10℃), it can be determined that the streaming rearview mirror is not in the preset temperature range, i.e. in this case, the brightness of the screen can be restored from the target brightness to the first initial brightness according to the brightness adjustment value determined in the above embodiments, and the light transmittance of the dimming glass can be restored from the first light transmittance to the initial light transmittance according to the light transmittance adjustment value determined in the above embodiments.

[0109] It should be noted that, in the case that the second temperature is equal to or greater than the temperature threshold, that is, in the case that the streaming rearview mirror cannot normally display images in the preset temperature range, it is considered that the ambient light intensity in which the streaming rearview mirror is located can change compared to the ambient light intensity when the streaming rearview mirror is in the preset temperature range. Therefore, in order to ensure that the screen brightness of the streaming rearview mirror can adapt to the ambient light intensity in which the streaming rearview mirror is located, in other words, in order to avoid the case that the screen brightness of the streaming rearview mirror is too high or too low to affect the user experience, in another possible implementation, in the case that the second temperature is equal to or greater than the temperature threshold, the ambient light intensity in which the streaming rearview mirror is located can be obtained; according to the preset corresponding relationship table, the second initial brightness of the screen and the second light transmittance of the dimming glass corresponding to the ambient light intensity are determined, and the screen is adjusted to the second initial brightness corresponding to the ambient light intensity, and the light transmittance of the dimming glass is adjusted to the second light transmittance corresponding to the ambient light intensity, so as to ensure that the screen brightness of the streaming rearview mirror can adapt to the ambient light intensity in which the streaming rearview mirror is located, and avoid the case that the screen brightness of the streaming rearview mirror is too high or too low to affect the user experience.

[0110] In the implementation of obtaining the ambient light intensity in which the streaming rearview mirror is located, refer to the above embodiment, and the determination of the second initial brightness of the screen and the second light transmittance of the dimming glass corresponding to the ambient light intensity is the same as the implementation of determining the first initial brightness and the initial light transmittance corresponding to the ambient light intensity according to the preset corresponding relationship table in the above embodiment, that is, refer to the above embodiment, and details are not repeated here.

[0111] Specifically, in the case that the second temperature is equal to or greater than the temperature threshold, after determining the second initial brightness of the screen and the second light transmittance of the dimming glass corresponding to the ambient light intensity, the screen brightness of the streaming rearview mirror can be adjusted from the target brightness to the second initial brightness according to the brightness adjustment value, and the light transmittance of the dimming glass can be adjusted from the first light transmittance to the second light transmittance according to the light transmittance adjustment value, so as to ensure that the screen brightness of the streaming rearview mirror can adapt to the ambient light intensity in which the streaming rearview mirror is located, and avoid the case that the screen brightness of the streaming rearview mirror is too high or too low to affect the user experience. Wherein, the brightness adjustment value is the difference obtained by subtracting the target brightness from the second initial brightness, and the light transmittance adjustment value is the difference obtained by subtracting the first light transmittance from the second light transmittance.

[0112] Figure 4 is a structural schematic diagram of a vehicle control device provided by an embodiment of the present application.

[0113] For example, as shown in Figure 4 The device 400 includes:

[0114] The response module 401 is configured to, in response to the fact that the streaming rearview mirror starts the streaming display mode, acquire a first initial brightness of a screen of the streaming rearview mirror and an initial light transmittance of a dimming glass overlaid on the screen in response to the fact that the streaming rearview mirror is in a preset temperature range, the streaming display mode being a mode in which the streaming rearview mirror can display an image of a rear of a vehicle.

[0115] The determination module 402 is configured to determine a first light transmittance of the dimming glass according to the target brightness of the streaming rearview mirror, the first initial brightness and the initial light transmittance, the target brightness being greater than the first initial brightness and less than or equal to a maximum brightness that can be reached by the screen of the streaming rearview mirror, and the first light transmittance being less than the initial light transmittance of the dimming glass.

[0116] The adjustment module 403 is configured to adjust the brightness of the screen to the target brightness and adjust the light transmittance of the dimming glass to the first light transmittance.

[0117] In a possible implementation, the apparatus further includes an acquisition module configured to acquire a first temperature of the streaming rearview mirror, the first temperature being a temperature when the streaming rearview mirror starts the streaming display mode; and the determination module is further configured to determine that the streaming rearview mirror is in the preset temperature range in response to the fact that the first temperature is less than a temperature threshold.

[0118] In a possible implementation, the determination module 402 is specifically configured to determine a brightness ratio according to the first initial brightness and the target brightness, and determine the first light transmittance according to the brightness ratio and the initial light transmittance.

[0119] In a possible implementation, the determination module 402 is specifically further configured to determine a brightness adjustment value of the screen of the streaming rearview mirror according to the target brightness and the first initial brightness, and determine a light transmittance adjustment value of the dimming glass according to the first light transmittance and the initial light transmittance; and the adjustment module 403 is specifically configured to adjust the brightness of the screen to the target brightness according to the brightness adjustment value, and adjust the light transmittance of the dimming glass to the first light transmittance according to the light transmittance adjustment value.

[0120] In a possible implementation, the determination module 402 is specifically further configured to determine whether the first light transmittance is less than a minimum light transmittance of the dimming glass, determine the light transmittance adjustment value according to the minimum light transmittance and the initial light transmittance and take the minimum light transmittance as the first light transmittance in response to the fact that the first light transmittance is less than the minimum light transmittance, and determine the light transmittance adjustment value according to the first light transmittance and the initial light transmittance in response to the fact that the first light transmittance is greater than the minimum light transmittance.

[0121] In a possible implementation, the apparatus further includes a display module configured to display prompt information in response to the fact that the first light transmittance is less than the minimum light transmittance, the prompt information being used to prompt that the streaming rearview mirror is currently in a warming-up state.

[0122] In a possible implementation, the obtaining module is further configured to obtain a second temperature of the streaming rearview mirror, the second temperature being a temperature after the brightness of the screen is adjusted to the target brightness; and the adjusting module 403 is further configured to, in a case where the second temperature is equal to or greater than the temperature threshold, adjust the screen to the first initial brightness and adjust the light transmittance of the dimming glass to the initial light transmittance.

[0123] In a possible implementation, the obtaining module is further configured to obtain a second temperature of the streaming rearview mirror, the second temperature being a temperature after the brightness of the screen is adjusted to the target brightness; and in a case where the second temperature is equal to or greater than the temperature threshold, obtain an ambient light intensity in which the streaming rearview mirror is located; the determining module 402 is further configured to determine, according to a preset relationship correspondence table, a second initial brightness of the screen and a second light transmittance of the dimming glass corresponding to the ambient light intensity; and the adjusting module 403 is further configured to adjust the screen to the second initial brightness and adjust the light transmittance of the dimming glass to the second light transmittance.

[0124] Figure 5 FIG. 1 is a structural schematic diagram of a streaming rearview mirror provided by an embodiment of the present application.

[0125] As shown in FIG. 5, the streaming rearview mirror 500 includes a memory 501 and a processor 502, wherein the memory 501 stores executable program code 503, and the processor 502 is configured to invoke and execute the executable program code 503 to execute a method for eliminating display screen ghosting. Figure 5

[0126] In addition, an apparatus is also protected by the embodiments of the present application, and the apparatus can include a memory and a processor, wherein the memory stores executable program code, and the processor is configured to invoke and execute the executable program code to execute a method for eliminating display screen ghosting provided by the embodiments of the present application.

[0127] The embodiments can divide the apparatus into functional modules according to the above method examples, for example, each functional module can be corresponded, or two or more functions can be integrated in one processing module, and the integrated module can be realized in the form of hardware. It should be noted that the division of the modules in the embodiments is illustrative, and is only a logical function division, and another division mode can be used in actual implementation.

[0128] In a case where each functional module is divided according to each function, the apparatus can further include an obtaining module, a display module, and the like. It should be noted that all related contents of each step involved in the above method embodiments can be referred to the function description of the corresponding functional module, and will not be repeated here.

[0129] ​It should be understood that the apparatus provided by the embodiment is used to execute the method for eliminating the display screen afterimage, and thus the same effects as the method can be achieved.

[0130] In the case of using the integrated unit, the apparatus can include a processing module and a storage module. When the apparatus is applied to a vehicle, the processing module can be used to control and manage the actions of the vehicle. The storage module can be used to support the vehicle to execute relevant program codes and the like.

[0131] The processing module can be a processor or a controller, which can realize or execute various exemplary logical blocks, modules and circuits shown in combination with the disclosure. The processor can also be a combination of computing functions, such as one or more microprocessor combinations, digital signal processing (DSP) and microprocessor combinations, and the like. The storage module can be a memory.

[0132] In addition, the apparatus provided by the embodiment of the application can be a chip, a component or a module. The chip can include a connected processor and a memory. The memory is used to store instructions, and when the processor calls and executes the instructions, the chip can execute the method for eliminating the display screen afterimage provided by the above embodiment.

[0133] The embodiment also provides a computer readable storage medium, which stores computer program codes. When the computer program codes run on a computer, the computer can execute the related method steps to realize the method for eliminating the display screen afterimage provided by the above embodiment.

[0134] The embodiment also provides a computer program product, which makes the computer execute the related steps to realize the method for eliminating the display screen afterimage provided by the above embodiment when the computer program product runs on the computer.

[0135] The apparatus, the computer readable storage medium, the computer program product or the chip provided by the embodiment are used to execute the corresponding method provided above, and thus the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method provided above, which will not be described here.

[0136] Through the description of the above embodiments, those skilled in the art can understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration. In actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the apparatus is divided into different functional modules to complete all or part of the functions described above.

[0137] In the embodiments of the present disclosure, it should be understood that the disclosed apparatus and method can be implemented in other ways. For example, the apparatus embodiments described above are merely schematic, and the division of the modules or units is merely a logical function division. In actual implementation, another division manner can be adopted, for example, a plurality of units or components can be combined or integrated into another apparatus, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, apparatuses or units, and can be electrical, mechanical or in other forms.

[0138] The above merely describes specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A method for eliminating screen ghosting, characterized in that, The method is applied to a streaming rearview mirror of a vehicle, and the method includes: When the streaming rearview mirror activates the streaming display mode, in response to the streaming rearview mirror being within a preset temperature range, the first initial brightness of the screen of the streaming rearview mirror and the initial light transmittance of the dimming glass covering the screen are obtained. The streaming display mode is a mode in which the streaming rearview mirror can display images behind the vehicle. Based on the target brightness of the streaming media rearview mirror, the first initial brightness, and the initial transmittance, the first transmittance of the dimming glass is determined. The target brightness is greater than the first initial brightness and less than or equal to the highest brightness that the screen of the streaming media rearview mirror can achieve. The first transmittance is less than the initial transmittance of the dimming glass. Adjust the brightness of the screen to the target brightness and adjust the light transmittance of the dimming glass to the first light transmittance.

2. The method according to claim 1, characterized in that, When the streaming media rearview mirror activates its streaming media display mode, before acquiring the first initial brightness of the screen of the streaming media rearview mirror and the initial light transmittance of the dimming glass covering the screen in response to the streaming media rearview mirror being within a preset temperature range, the method further includes: The first temperature of the streaming media rearview mirror is obtained, and the first temperature is the temperature at which the streaming media rearview mirror activates the streaming media display mode. If the first temperature is less than the temperature threshold, the streaming media rearview mirror is determined to be within a preset temperature range.

3. The method according to claim 1, characterized in that, The step of determining the first transmittance of the dimming glass based on the target brightness of the streaming rearview mirror, the first initial brightness, and the initial transmittance includes: The brightness ratio is determined based on the first initial brightness and the target brightness; The first transmittance is determined based on the brightness ratio and the initial transmittance.

4. The method according to claim 1, characterized in that, The step of adjusting the brightness of the screen to the target brightness and adjusting the light transmittance of the dimming glass to the first light transmittance includes: The brightness adjustment value of the streaming media rearview mirror screen is determined based on the target brightness and the first initial brightness. Based on the first transmittance and the initial transmittance, the transmittance adjustment value of the dimming glass is determined; The brightness of the screen is adjusted to the target brightness according to the brightness adjustment value, and the transmittance of the dimming glass is adjusted to the first transmittance according to the transmittance adjustment value.

5. The method according to claim 4, characterized in that, The step of determining the transmittance adjustment value of the dimming glass based on the first transmittance and the initial transmittance includes: Determine whether the first light transmittance is less than the minimum light transmittance of the dimming glass; If the first transmittance is less than the minimum transmittance, the transmittance adjustment value is determined based on the minimum transmittance and the initial transmittance, and the minimum transmittance is used as the first transmittance. If the first transmittance is greater than the minimum transmittance, the transmittance adjustment value is determined based on the first transmittance and the initial transmittance.

6. The method according to claim 5, characterized in that, The method further includes: If the first light transmittance is less than the minimum light transmittance, a prompt message is displayed, which indicates that the streaming media rearview mirror is currently in a heating state.

7. The method according to claim 1, characterized in that, After adjusting the brightness of the screen to the target brightness and adjusting the light transmittance of the dimming glass to the first light transmittance, the method further includes: Obtain the second temperature of the streaming media rearview mirror, the second temperature being the temperature after adjusting the screen brightness to the target brightness; When the second temperature is equal to or greater than the temperature threshold, the screen is adjusted to the first initial brightness and the light transmittance of the dimming glass is adjusted to the initial light transmittance.

8. The method according to claim 1, characterized in that, After adjusting the brightness of the screen to the target brightness and adjusting the light transmittance of the dimming glass to the first light transmittance, the method further includes: Obtain the second temperature of the streaming media rearview mirror, the second temperature being the temperature after adjusting the screen brightness to the target brightness; When the second temperature is equal to or greater than the temperature threshold, the ambient light intensity of the streaming media rearview mirror is obtained; According to a preset relationship correspondence table, the second initial brightness of the screen and the second light transmittance of the dimming glass corresponding to the ambient light intensity are determined. The screen is adjusted to the second initial brightness, and the light transmittance of the dimming glass is adjusted to the second light transmittance.

9. A device for eliminating screen ghosting, characterized in that, The device is applied to a streaming rearview mirror of a vehicle, and the device includes: The response module is used to, when the streaming media rearview mirror starts the streaming media display mode, and in response to the streaming media rearview mirror being in a preset temperature range, obtain the first initial brightness of the screen of the streaming media rearview mirror and the initial light transmittance of the dimming glass covering the screen, wherein the streaming media display mode is a mode in which the streaming media rearview mirror can display an image behind the vehicle. The determining module is used to determine the first transmittance of the dimming glass based on the target brightness of the streaming media rearview mirror, the first initial brightness, and the initial transmittance, wherein the target brightness is greater than the first initial brightness and less than or equal to the highest brightness that the screen of the streaming media rearview mirror can achieve, and the first transmittance is less than the initial transmittance of the dimming glass. The adjustment module is used to adjust the brightness of the screen to the target brightness and adjust the light transmittance of the dimming glass to the first light transmittance.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed, implements the method as described in any one of claims 1 to 8.

Images