Polarization control method, device, equipment and storage medium for vehicle-mounted screen

Abstract

The present application discloses a polarization control method, device, equipment and storage medium for a vehicle-mounted screen. The ambient light parameters of the environment in which the vehicle-mounted screen is located are collected through the ambient light sensor; based on the ambient light parameters, the polarization parameters to be adjusted of the vehicle-mounted screen are determined; based on the polarization parameters to be adjusted, the first voltage parameter of the polarization control panel and the second voltage parameter of the backlight source are determined; based on the first voltage parameter and the second voltage parameter, the polarization direction of the polarization control panel is adjusted, and the light source intensity of the backlight source is adjusted. The effect of external light on the vehicle-mounted screen is quantified, and polarization is adjusted from the polarization control panel, and brightness is adjusted from the backlight source, thereby eliminating the effect of external light on the vehicle-mounted screen and improving the user's driving experience.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a polarization control method, device, equipment and storage medium for a vehicle-mounted screen. Background Art

[0002] As the in-vehicle systems of cars become more intelligent, more and more cars are using large-size screens, which cover the left and right driving positions. When strong light from the outside shines on the in-vehicle screen, it often reflects light, affecting the driver's driving experience.

[0003] At present, the impact of external strong light is mainly weakened by increasing the brightness of the car screen, but increasing the brightness requires more energy, causing the car screen to become seriously hot under the dual effects of high-power operation and external strong light. Summary of the invention

[0004] The present application provides a polarization control method, device, equipment and storage medium for a vehicle-mounted screen to solve the technical problem that the vehicle-mounted screen is affected by strong external light and reduces the user's driving experience.

[0005] In order to solve the above technical problems, in a first aspect, the present application provides a polarization control method for a vehicle-mounted screen, which is applied to the vehicle-mounted screen. The vehicle-mounted screen includes a liquid crystal display module, a polarization control panel and a backlight source arranged in sequence. The liquid crystal display module is provided with an ambient light sensor. The method includes:

[0006] Collecting ambient light parameters of the environment where the vehicle-mounted screen is located through the ambient light sensor;

[0007] Based on the ambient light parameter, determining the polarization parameter to be adjusted of the vehicle-mounted screen;

[0008] Based on the polarization parameter to be adjusted, determining a first voltage parameter of the polarization control panel and a second voltage parameter of the backlight source;

[0009] Based on the first voltage parameter and the second voltage parameter, the polarization direction of the polarization control panel is adjusted, and the light source intensity of the backlight source is adjusted.

[0010] In some of the embodiments, collecting the ambient light parameters of the environment in which the vehicle-mounted screen is located by the ambient light sensor includes:

[0011] Collecting ambient light distribution information of the environment where the vehicle-mounted screen is located through the ambient light sensor;

[0012] Based on a preset division strategy, the ambient light distribution information is divided to obtain primary ambient light parameters and secondary ambient light parameters. The primary ambient light parameters include a primary ambient light incident angle range and a primary ambient light intensity range, and the secondary ambient light parameters include a secondary ambient light incident angle range and a secondary ambient light intensity range.

[0013] In some embodiments, determining the polarization parameter to be adjusted of the vehicle-mounted screen based on the ambient light parameter includes:

[0014] Based on the main ambient light parameters in the ambient light parameters, determining the main area to be adjusted of the vehicle screen, and matching the polarization parameters to be adjusted corresponding to the main area to be adjusted;

[0015] Based on the secondary ambient light parameters in the environmental parameters, the secondary area to be adjusted of the vehicle screen is determined, and the polarization parameters to be adjusted corresponding to the secondary area to be adjusted are matched.

[0016] In some of the embodiments, the polarization control panel includes two substrates arranged opposite to each other, and a first electrode layer, a first liquid crystal molecule layer, a second electrode layer, a second liquid crystal molecule layer, a third electrode layer and a polarizer are sequentially arranged between the two substrates, wherein each electrode layer is provided with a plurality of electrode areas, and the electrode areas are used to control the deflection angles of liquid crystal molecules in corresponding areas of the liquid crystal molecule layer, and the polarizer is used to control the transmittance of light emitted by the backlight source.

[0017] In some embodiments, determining the first voltage parameter of the polarization control panel and the second voltage parameter of the backlight source based on the polarization parameter to be adjusted includes:

[0018] Using a first preset correspondence between a polarization parameter and a voltage parameter of the polarization control panel, a first voltage parameter corresponding to the polarization parameter to be adjusted is matched;

[0019] The second voltage parameter corresponding to the polarization parameter to be adjusted is matched by utilizing the second preset corresponding relationship between the polarization parameter and the second voltage parameter of the backlight source.

[0020] In some embodiments, the using a first preset correspondence between a polarization parameter and a voltage parameter of the polarization control panel to match a first voltage parameter corresponding to the polarization parameter to be adjusted includes:

[0021] Determine a plurality of first electrode areas corresponding to the main area to be adjusted of the vehicle-mounted screen, and determine a plurality of second electrode areas corresponding to the secondary area to be adjusted of the vehicle-mounted screen, wherein the first electrode areas and the second electrode areas each include an electrode area of ​​the first electrode layer, an electrode area of ​​the second electrode layer, and an electrode area of ​​the third electrode layer;

[0022] The first preset corresponding relationship is used to match the first voltage parameter corresponding to the first electrode area where the main area to be adjusted is located, and the first voltage parameter corresponding to the second electrode area where the secondary area to be adjusted is located is matched.

[0023] In some embodiments, adjusting the polarization direction of the polarization control panel and adjusting the light source intensity of the backlight source based on the first voltage parameter and the second voltage parameter includes:

[0024] Based on the first voltage parameter, adjusting the voltage of the electrode area in the polarization control panel to adjust the polarization direction of the polarization control panel;

[0025] Based on the second voltage parameter, the voltage of the backlight source is adjusted to adjust the light source intensity of the backlight source.

[0026] In a second aspect, the present application provides a polarization control device for a vehicle screen, which is applied to a vehicle screen. The vehicle screen includes a liquid crystal display module, a polarization control panel, and a backlight source arranged in sequence. The liquid crystal display module is provided with an ambient light sensor. The device includes:

[0027] A collection module, used for collecting ambient light parameters of the environment in which the vehicle-mounted screen is located through the ambient light sensor;

[0028] A first determination module, configured to determine the polarization parameter to be adjusted of the vehicle-mounted screen based on the ambient light parameter;

[0029] A second determination module, configured to determine a first voltage parameter of the polarization control panel and a second voltage parameter of the backlight source based on the polarization parameter to be adjusted;

[0030] The adjustment module is used to adjust the polarization direction of the polarization control panel and the light source intensity of the backlight source based on the first voltage parameter and the second voltage parameter.

[0031] In a third aspect, the present application provides a vehicle-mounted control device, including a processor and a memory, wherein the memory is used to store a computer program, and when the computer program is executed by the processor, the polarization control method of the vehicle-mounted screen as described in the first aspect is implemented.

[0032] In a fourth aspect, the present application provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the polarization control method for a vehicle-mounted screen as described in the first aspect.

[0033] Compared with the prior art, this application has the following beneficial effects:

[0034] A polarization control panel and an ambient light sensor are provided on a vehicle-mounted screen, and the ambient light sensor is used to collect ambient light parameters of the environment in which the vehicle-mounted screen is located, so as to obtain information on the impact of external light; based on the ambient light parameters, the polarization parameters to be adjusted of the vehicle-mounted screen are determined, so as to quantify the impact of external light on the vehicle-mounted screen, so as to facilitate subsequent quantitative adjustment; based on the polarization parameters to be adjusted, the first voltage parameter of the polarization control panel and the second voltage parameter of the backlight source are determined, so as to adjust the polarization from the polarization control panel and adjust the brightness from the backlight source; based on the first voltage parameter and the second voltage parameter, the polarization direction of the polarization control panel is adjusted, and the light source intensity of the backlight source is adjusted, so as to eliminate the impact of external light on the vehicle-mounted screen and improve the user's driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic flow chart of a polarization control method for a vehicle-mounted screen according to an embodiment of the present application;

[0036] Figure 2 This is a schematic diagram of the incident ambient light of the vehicle-mounted screen shown in the embodiment of the present application;

[0037] Figure 3 This is a schematic diagram of the structure of the vehicle-mounted screen shown in the embodiment of the present application;

[0038] Figure 4 This is a schematic structural diagram of a polarization control device for a vehicle-mounted screen according to an embodiment of the present application;

[0039] Figure 5 This is a schematic diagram of the structure of a computer device shown in an embodiment of the present application;. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] Please refer to Figure 1 , Figure 1 The flowchart of a polarization control method for a vehicle screen provided in an embodiment of the present application is shown in FIG. The polarization control method for a vehicle screen in an embodiment of the present application is applied to a vehicle screen, wherein the vehicle screen comprises a liquid crystal display module, a polarization control panel and a backlight source arranged in sequence, and an ambient light sensor is provided in the liquid crystal display module. Figure 1 As shown, the polarization control method of the vehicle screen of this embodiment includes steps S101 to S104, which are described in detail as follows:

[0042] Step S101, collecting ambient light parameters of the environment in which the vehicle-mounted screen is located through the ambient light sensor.

[0043] In this step, ambient light parameters are collected through a light sensor to sense parameters such as the light intensity and color temperature of the vehicle screen, so that the screen can intelligently adjust the brightness, contrast and color to provide a better display effect and viewing experience. Optionally, the ambient light sensor senses the ambient light parameters and converts the sensed ambient light parameters into electrical signals, which are then transmitted to the vehicle screen system. The vehicle screen system determines the current ambient light conditions based on these electrical signals, including light distribution, light intensity and color temperature.

[0044] In some embodiments, the step S101 includes:

[0045] Collecting ambient light distribution information of the environment where the vehicle-mounted screen is located through the ambient light sensor;

[0046] Based on a preset division strategy, the ambient light distribution information is divided to obtain primary ambient light parameters and secondary ambient light parameters. The primary ambient light parameters include a primary ambient light incident angle range and a primary ambient light intensity range, and the secondary ambient light parameters include a secondary ambient light incident angle range and a secondary ambient light intensity range.

[0047] In this embodiment, there may be multiple ambient light sensors to more accurately collect ambient light distribution information. The preset division strategy may be a division strategy based on preset light parameters, a division strategy based on preset classifications, or a division strategy based on preset partitions. For example, based on a division strategy based on preset classifications, the ambient light distribution information is classified to obtain ambient light distribution areas corresponding to each classification, and the ambient light parameters corresponding to the ambient light distribution area with the highest classification are used as the primary ambient light parameters, and the ambient light parameters corresponding to the ambient light distribution area with the second highest classification are used as the secondary ambient light parameters.

[0048] This embodiment identifies the distribution of ambient light to determine the ambient light with the highest and second highest impact on the vehicle screen, so as to adjust the polarization direction of the corresponding area of ​​the vehicle screen accordingly, thereby achieving refined polarization control.

[0049] Step S102: determining the polarization parameters to be adjusted of the vehicle-mounted screen based on the ambient light parameters.

[0050] In this step, the polarization parameters to be adjusted include the polarization direction of the car screen. For example, the ambient light parameter is the light incident from the right window of the car at a 45° direction. The incident light forms a 135° reflected light after being reflected by the car screen. Therefore, in order to offset the incident light, the car screen can be polarized at 45° (for example only) so that its polarization direction is parallel to the incident direction of the light.

[0051] In some embodiments, the step S102 includes:

[0052] Based on the main ambient light parameters in the ambient light parameters, determining the main area to be adjusted of the vehicle screen, and matching the polarization parameters to be adjusted corresponding to the main area to be adjusted;

[0053] Based on the secondary ambient light parameters in the environmental parameters, the secondary area to be adjusted of the vehicle screen is determined, and the polarization parameters to be adjusted corresponding to the secondary area to be adjusted are matched.

[0054] In this embodiment, if Figure 2 As shown, since the vehicle screen may be affected by ambient light from multiple directions, the ambient light intensity in different directions is different. Therefore, in order to improve the accuracy of the polarization control of the vehicle screen, the polarization parameters to be adjusted of the main area to be adjusted affected by the main ambient light parameters and the polarization parameters to be adjusted of the secondary area to be adjusted affected by the secondary ambient light parameters are analyzed. Optionally, according to the range of the incident direction of the ambient light, the main area to be adjusted and the secondary area to be adjusted corresponding to the vehicle screen are divided, and the corresponding polarization parameters to be adjusted are matched.

[0055] Step S103: determining a first voltage parameter of the polarization control panel and a second voltage parameter of the backlight source based on the polarization parameter to be adjusted.

[0056] In this step, the polarization control panel controls the polarization of the vehicle screen by adjusting the voltage, and the backlight source controls the brightness of the vehicle screen by adjusting the voltage. It is understandable that since the vehicle screen is polarized, its display content faces the user, so the brightness of the vehicle screen may be lowered.

[0057] In some embodiments, Figure 3 As shown, the polarization control panel includes two substrates arranged opposite to each other, and a first electrode layer, a first liquid crystal molecule layer, a second electrode layer, a second liquid crystal molecule layer, a third electrode layer and a polarizer are arranged in sequence between the two substrates, wherein each electrode layer is provided with a plurality of electrode areas, and the electrode areas are used to control the deflection angles of the liquid crystal molecules in the corresponding areas of the liquid crystal molecule layer, and the polarizer is used to control the transmittance of the light emitted by the backlight source.

[0058] Since light has a maximum deflection angle in the liquid crystal molecular layer, this embodiment cooperates with three electrode layers and two liquid crystal molecular layers so that the emitted light of the backlight source continues to deflect in the second liquid crystal layer after being deflected in the second liquid crystal layer, thereby making the deflection angle range of the emitted light of the backlight source larger.

[0059] In some embodiments, the step S103 includes:

[0060] Using a first preset correspondence between a polarization parameter and a voltage parameter of the polarization control panel, a first voltage parameter corresponding to the polarization parameter to be adjusted is matched;

[0061] The second voltage parameter corresponding to the polarization parameter to be adjusted is matched by utilizing the second preset corresponding relationship between the polarization parameter and the second voltage parameter of the backlight source.

[0062] In this embodiment, the first preset corresponding relationship and the second preset corresponding relationship can be tested in an experimental scenario. The voltage of the polarization control panel and the voltage of the backlight source are obtained by parameter matching to quantitatively control the polarization control panel and the backlight source to improve the control accuracy. Optionally, multiple electrode areas of the polarization control panel can be independently controlled to achieve different polarizations in multiple areas of the same screen; the backlight source is composed of multiple LEDs, and the LEDs can also be independent to achieve different brightness in multiple areas of the same screen.

[0063] Optionally, the using a first preset correspondence between a polarization parameter and a voltage parameter of the polarization control panel to match a first voltage parameter corresponding to the polarization parameter to be adjusted includes:

[0064] Determine a plurality of first electrode areas corresponding to the main area to be adjusted of the vehicle-mounted screen, and determine a plurality of second electrode areas corresponding to the secondary area to be adjusted of the vehicle-mounted screen, wherein the first electrode areas and the second electrode areas each include an electrode area of ​​the first electrode layer, an electrode area of ​​the second electrode layer, and an electrode area of ​​the third electrode layer;

[0065] The first preset corresponding relationship is used to match the first voltage parameter corresponding to the first electrode area where the main area to be adjusted is located, and the first voltage parameter corresponding to the second electrode area where the secondary area to be adjusted is located is matched.

[0066] In this embodiment, for the main area to be adjusted and the secondary area to be adjusted, the voltage parameters of the corresponding electrode areas are matched respectively to more finely control the polarization and brightness of the vehicle screen, so that the polarization transition and brightness transition between different areas of the vehicle screen are more natural and soft, thereby improving the user's visual experience.

[0067] Step S104: adjusting the polarization direction of the polarization control panel and adjusting the light source intensity of the backlight source based on the first voltage parameter and the second voltage parameter.

[0068] In this step, optionally, the step S104 includes:

[0069] Based on the first voltage parameter, adjusting the voltage of the electrode area in the polarization control panel to adjust the polarization direction of the polarization control panel;

[0070] Based on the second voltage parameter, the voltage of the backlight source is adjusted to adjust the light source intensity of the backlight source.

[0071] In this embodiment, the first voltage parameter and the second voltage parameter are converted into electrical signals and transmitted to the corresponding electrode area of ​​the polarization control panel and the corresponding LED light of the backlight source, so as to achieve the purpose of polarization control and brightness adjustment of the vehicle screen, thereby avoiding external ambient light from reflecting on the vehicle screen and affecting the user, thereby improving the user's driving experience.

[0072] In order to implement the polarization control method of the vehicle screen corresponding to the above method embodiment, to achieve the corresponding functions and technical effects. Figure 4 , Figure 4 The structure block diagram of a polarization control device for a vehicle screen provided by an embodiment of the present application is shown. For the convenience of explanation, only the parts related to the present embodiment are shown. The polarization control device for a vehicle screen provided by an embodiment of the present application includes:

[0073] The acquisition module 401 is used to acquire the ambient light parameters of the environment where the vehicle-mounted screen is located through the ambient light sensor;

[0074] A first determination module 402, configured to determine the polarization parameter to be adjusted of the vehicle-mounted screen based on the ambient light parameter;

[0075] A second determination module 403, configured to determine a first voltage parameter of the polarization control panel and a second voltage parameter of the backlight source based on the polarization parameter to be adjusted;

[0076] The adjustment module 404 is used to adjust the polarization direction of the polarization control panel and the light source intensity of the backlight source based on the first voltage parameter and the second voltage parameter.

[0077] In some embodiments, the acquisition module 401 is specifically used for:

[0078] Collecting ambient light distribution information of the environment where the vehicle-mounted screen is located through the ambient light sensor;

[0079] Based on a preset division strategy, the ambient light distribution information is divided to obtain primary ambient light parameters and secondary ambient light parameters. The primary ambient light parameters include a primary ambient light incident angle range and a primary ambient light intensity range, and the secondary ambient light parameters include a secondary ambient light incident angle range and a secondary ambient light intensity range.

[0080] In some embodiments, the first determining module 402 is specifically configured to:

[0081] Based on the main ambient light parameters in the ambient light parameters, determining the main area to be adjusted of the vehicle screen, and matching the polarization parameters to be adjusted corresponding to the main area to be adjusted;

[0082] Based on the secondary ambient light parameters in the environmental parameters, the secondary area to be adjusted of the vehicle screen is determined, and the polarization parameters to be adjusted corresponding to the secondary area to be adjusted are matched.

[0083] In some embodiments, the polarization control panel includes two substrates arranged opposite to each other, and a first electrode layer, a first liquid crystal molecule layer, a second electrode layer, a second liquid crystal molecule layer, a third electrode layer and a polarizer are sequentially arranged between the two substrates, wherein each electrode layer is provided with a plurality of electrode areas, and the electrode areas are used to control the deflection angles of liquid crystal molecules in corresponding areas of the liquid crystal molecule layer, and the polarizer is used to control the transmittance of light emitted by the backlight source.

[0084] In some embodiments, the second determining module 403 is specifically configured to:

[0085] Using a first preset correspondence between a polarization parameter and a voltage parameter of the polarization control panel, a first voltage parameter corresponding to the polarization parameter to be adjusted is matched;

[0086] The second voltage parameter corresponding to the polarization parameter to be adjusted is matched by utilizing the second preset corresponding relationship between the polarization parameter and the second voltage parameter of the backlight source.

[0087] In some embodiments, the second determining module 403 is further configured to:

[0088] Determine a plurality of first electrode areas corresponding to the main area to be adjusted of the vehicle-mounted screen, and determine a plurality of second electrode areas corresponding to the secondary area to be adjusted of the vehicle-mounted screen, wherein the first electrode areas and the second electrode areas each include an electrode area of ​​the first electrode layer, an electrode area of ​​the second electrode layer, and an electrode area of ​​the third electrode layer;

[0089] The first preset corresponding relationship is used to match the first voltage parameter corresponding to the first electrode area where the main area to be adjusted is located, and the first voltage parameter corresponding to the second electrode area where the secondary area to be adjusted is located is matched.

[0090] In some embodiments, the adjustment module 404 is specifically configured to:

[0091] Based on the first voltage parameter, adjusting the voltage of the electrode area in the polarization control panel to adjust the polarization direction of the polarization control panel;

[0092] Based on the second voltage parameter, the voltage of the backlight source is adjusted to adjust the light source intensity of the backlight source.

[0093] The above-mentioned polarization control device for the vehicle screen can implement the polarization control method for the vehicle screen of the above-mentioned method embodiment. The options in the above-mentioned method embodiment are also applicable to this embodiment and will not be described in detail here. The rest of the contents of the embodiment of this application can refer to the contents of the above-mentioned method embodiment, and will not be repeated in this embodiment.

[0094] Figure 5 This is a schematic diagram of the structure of a vehicle-mounted control device provided in one embodiment of the present application. Figure 5 As shown, the vehicle-mounted control device 5 of this embodiment includes: at least one processor 50 ( Figure 5 Only one is shown in the figure), a memory 51 and a computer program 52 stored in the memory 51 and executable on the at least one processor 50, wherein the processor 50 implements the steps of any of the above method embodiments when executing the computer program 52.

[0095] The vehicle-mounted control device 5 may be a computing device such as a vehicle-mounted control center and a vehicle-mounted screen. The vehicle-mounted control device may include but is not limited to a processor 50 and a memory 51. Those skilled in the art will understand that Figure 5 It is only an example of the vehicle-mounted control device 5 and does not constitute a limitation on the vehicle-mounted control device 5. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, it may also include input and output devices, network access devices, etc.

[0096] The processor 50 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0097] In some embodiments, the memory 51 may be an internal storage unit of the vehicle-mounted control device 5, such as a hard disk or memory of the vehicle-mounted control device 5. In other embodiments, the memory 51 may also be an external storage device of the vehicle-mounted control device 5, such as a plug-in hard disk, a smart memory card (SmartMedia Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the vehicle-mounted control device 5. Further, the memory 51 may also include both an internal storage unit of the vehicle-mounted control device 5 and an external storage device. The memory 51 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as the program code of the computer program, etc. The memory 51 may also be used to temporarily store data that has been output or is to be output.

[0098] In addition, an embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0099] An embodiment of the present application provides a computer program product. When the computer program product is run on a vehicle-mounted control device, the vehicle-mounted control device implements the steps in the above-mentioned method embodiments when executing.

[0100] In several embodiments provided in the present application, it is understood that each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved.

[0101] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can essentially be embodied in the form of a software product, or in other words, the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including several instructions for enabling a vehicle-mounted control device to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program codes.

[0102] The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the scope of protection of the present application. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A polarization control method for a vehicle-mounted screen, characterized in that: Applied to a vehicle-mounted screen, the vehicle-mounted screen comprises a liquid crystal display module, a polarization control panel and a backlight source which are arranged in sequence, the liquid crystal display module is provided with an ambient light sensor, the polarization control panel comprises two substrates which are arranged opposite to each other, a first electrode layer, a first liquid crystal molecule layer, a second electrode layer, a second liquid crystal molecule layer, a third electrode layer and a polarizer are arranged in sequence between the two substrates, wherein each electrode layer is provided with a plurality of electrode areas, the electrode areas are used to control the deflection angles of liquid crystal molecules in the corresponding areas of the liquid crystal molecule layer, the polarizer is used to control the transmittance of light emitted by the backlight source, and the method comprises: Collecting ambient light parameters of the environment where the vehicle-mounted screen is located through the ambient light sensor; Based on the ambient light parameter, determining the polarization parameter to be adjusted of the vehicle-mounted screen; Based on the polarization parameter to be adjusted, determining a first voltage parameter of the polarization control panel and a second voltage parameter of the backlight source, the first voltage parameter including a first voltage parameter corresponding to a plurality of first electrode regions where a main region to be adjusted of the vehicle-mounted screen is located, and a first voltage parameter corresponding to a plurality of second electrode regions where a secondary region to be adjusted of the vehicle-mounted screen is located, the first electrode region and the second electrode region both including an electrode region of the first electrode layer, an electrode region of the second electrode layer, and an electrode region of the third electrode layer; Based on the first voltage parameter and the second voltage parameter, the polarization direction of the polarization control panel is adjusted, and the light source intensity of the backlight source is adjusted.

2. The polarization control method of the vehicle-mounted screen according to claim 1, characterized in that: The collecting of ambient light parameters of the environment in which the vehicle-mounted screen is located by the ambient light sensor includes: Collecting ambient light distribution information of the environment where the vehicle-mounted screen is located through the ambient light sensor; Based on a preset division strategy, the ambient light distribution information is divided to obtain primary ambient light parameters and secondary ambient light parameters. The primary ambient light parameters include a primary ambient light incident angle range and a primary ambient light intensity range, and the secondary ambient light parameters include a secondary ambient light incident angle range and a secondary ambient light intensity range.

3. The polarization control method of the vehicle-mounted screen according to claim 1, characterized in that: The step of determining the polarization parameter to be adjusted of the vehicle-mounted screen based on the ambient light parameter includes: Based on the main ambient light parameters in the ambient light parameters, determining the main area to be adjusted of the vehicle screen, and matching the polarization parameters to be adjusted corresponding to the main area to be adjusted; Based on the secondary ambient light parameters in the ambient light parameters, a secondary area to be adjusted of the vehicle-mounted screen is determined, and the polarization parameters to be adjusted corresponding to the secondary area to be adjusted are matched.

4. The polarization control method of the vehicle-mounted screen according to claim 1, characterized in that: The determining, based on the polarization parameter to be adjusted, a first voltage parameter of the polarization control panel and a second voltage parameter of the backlight source comprises: Using a first preset correspondence between a polarization parameter and a voltage parameter of the polarization control panel, a first voltage parameter corresponding to the polarization parameter to be adjusted is matched; The second voltage parameter corresponding to the polarization parameter to be adjusted is matched by utilizing the second preset corresponding relationship between the polarization parameter and the second voltage parameter of the backlight source.

5. The polarization control method of the vehicle-mounted screen as claimed in claim 4, characterized in that: The using a first preset correspondence between the polarization parameter and the voltage parameter of the polarization control panel to match a first voltage parameter corresponding to the polarization parameter to be adjusted includes: Determine a plurality of first electrode regions corresponding to a main region to be adjusted of the vehicle-mounted screen, and determine a plurality of second electrode regions corresponding to a secondary region to be adjusted of the vehicle-mounted screen; The first preset corresponding relationship is used to match the first voltage parameter corresponding to the first electrode area where the main area to be adjusted is located, and the first voltage parameter corresponding to the second electrode area where the secondary area to be adjusted is located is matched.

6. The polarization control method of the vehicle-mounted screen as claimed in claim 1, characterized in that: The adjusting the polarization direction of the polarization control panel and the light source intensity of the backlight source based on the first voltage parameter and the second voltage parameter includes: Based on the first voltage parameter, adjusting the voltage of the electrode area in the polarization control panel to adjust the polarization direction of the polarization control panel; Based on the second voltage parameter, the voltage of the backlight source is adjusted to adjust the light source intensity of the backlight source.

7. A polarization control device for a vehicle-mounted screen, characterized in that: Applied to a vehicle-mounted screen, the vehicle-mounted screen comprises a liquid crystal display module, a polarization control panel and a backlight source which are arranged in sequence, the liquid crystal display module is provided with an ambient light sensor, the polarization control panel comprises two substrates which are arranged opposite to each other, a first electrode layer, a first liquid crystal molecule layer, a second electrode layer, a second liquid crystal molecule layer, a third electrode layer and a polarizer are arranged in sequence between the two substrates, wherein each electrode layer is provided with a plurality of electrode areas, the electrode areas are used to control the deflection angles of the liquid crystal molecules in the corresponding areas of the liquid crystal molecule layer, the polarizer is used to control the transmittance of the light emitted by the backlight source, and the device comprises: A collection module, used for collecting ambient light parameters of the environment in which the vehicle-mounted screen is located through the ambient light sensor; A first determination module, configured to determine the polarization parameter to be adjusted of the vehicle-mounted screen based on the ambient light parameter; a second determination module, for determining a first voltage parameter of the polarization control panel and a second voltage parameter of the backlight source based on the polarization parameter to be adjusted, the first voltage parameter comprising a first voltage parameter corresponding to a plurality of first electrode regions where a main region to be adjusted of the vehicle-mounted screen is located, and a first voltage parameter corresponding to a plurality of second electrode regions where a secondary region to be adjusted of the vehicle-mounted screen is located, the first electrode region and the second electrode region both comprising an electrode region of the first electrode layer, an electrode region of the second electrode layer, and an electrode region of the third electrode layer; The adjustment module is used to adjust the polarization direction of the polarization control panel and the light source intensity of the backlight source based on the first voltage parameter and the second voltage parameter.

8. A vehicle-mounted control device, characterized in that: It includes a processor and a memory, the memory is used to store a computer program, and when the computer program is executed by the processor, the polarization control method of the vehicle screen as described in any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium, characterized in that: It stores a computer program, which, when executed by a processor, implements the polarization control method for a vehicle-mounted screen as described in any one of claims 1 to 6.

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