Head-up display method, display device, electronic device, vehicle and medium

Abstract

The invention discloses a head-up display method, a display device, an electronic device, a vehicle and a medium. The method is applied to the vehicle, the vehicle comprises a head-up display device, and the method comprises the steps that the temperature of a backlight source of the head-up display device is adjusted to a first working temperature; and adjusting the brightness of the backlight source to match the brightness of the current ambient light. By adjusting the temperature of the backlight light source to the first working temperature (for example, the temperature is adjusted through an existing air conditioner of a vehicle), the light source can work at the first working temperature as much as possible, the HUD display effect can be guaranteed, and the light source is prevented from being damaged. Furthermore, the brightness of the backlight source is adjusted to be matched with the brightness of the current environment light, the display effect of the HUD can be improved, a driver can accurately distinguish the content displayed by the HUD from the road condition, and therefore driving safety is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of head-up display, and more specifically, to a head-up display method, a display device, an electronic device, a vehicle, and a non-volatile computer-readable storage medium. Background Art

[0002] Currently, in a Head Up Display (HUD), as the backlight source continues to work, the temperature of the backlight source will continue to rise. The rise in the backlight source temperature will cause the HUD display effect to deteriorate or even damage the backlight source. Since the content displayed by the HUD is generally within the driver's field of vision, the deterioration of the HUD display effect may make it difficult for the driver to see the content displayed by the HUD or be blocked by the content displayed by the HUD and unable to see the road conditions clearly, thereby affecting driving safety. Summary of the invention

[0003] The embodiments of the present application provide a head-up display method, a display device, an electronic device, a vehicle, and a non-volatile computer-readable storage medium, which enable the driver to accurately distinguish between the content and road conditions displayed by the HUD while avoiding damage to the backlight source, thereby ensuring driving safety.

[0004] The head-up display method of the present application is applied to a vehicle, wherein the vehicle includes a head-up display device, and the method includes: adjusting the temperature of a backlight source of the head-up display device to a first operating temperature; and adjusting the brightness of the backlight source to match the current ambient light brightness.

[0005] In some embodiments, adjusting the temperature of the backlight source of the head-up display device to the first operating temperature includes: determining an adjustment strategy for the in-vehicle ambient temperature based on the in-vehicle ambient temperature, the temperature of the backlight source, and a regulation characteristic of the in-vehicle ambient temperature; and adjusting the in-vehicle ambient temperature based on the in-vehicle ambient temperature adjustment strategy so that the temperature of the backlight source is at the first operating temperature.

[0006] In some embodiments, the adjustment strategy for the in-vehicle ambient temperature is determined based on the in-vehicle ambient temperature, the temperature of the backlight light source, and the regulation characteristics of the in-vehicle ambient temperature, including: when the temperature of the backlight light source is greater than the first operating temperature, determining the adjustment strategy to be to lower the in-vehicle ambient temperature with a target cooling power, and the target cooling power is determined based on the in-vehicle ambient temperature and the regulation characteristics of the in-vehicle ambient temperature; when the temperature of the backlight light source is lower than the first operating temperature, determining the adjustment strategy to be to increase the in-vehicle ambient temperature with a target heating power, and the target heating power is determined based on the in-vehicle ambient temperature and the regulation characteristics of the in-vehicle ambient temperature.

[0007] In some embodiments, adjusting the temperature of the backlight source of the head-up display device to the first operating temperature includes: when the temperature of the backlight source is greater than the first operating temperature, lowering the ambient temperature in the vehicle so that the temperature of the backlight source is cooled to the first operating temperature; when the temperature of the backlight source is less than the first operating temperature, increasing the ambient temperature in the vehicle so that the temperature of the backlight source is heated to the first operating temperature.

[0008] In certain embodiments, adjusting the temperature of the backlight light source of the head-up display device to a first operating temperature includes: when the temperature of the backlight light source is greater than the first operating temperature, lowering the vehicle interior ambient temperature with a target cooling power, the target cooling power being determined based on a first difference between the temperature of the backlight light source and the first operating temperature, and the vehicle interior ambient temperature, and the target cooling power being proportional to the first difference and the vehicle interior ambient temperature, respectively; when the temperature of the backlight light source is less than the first operating temperature, lowering the vehicle interior ambient temperature with a target heating power, the target heating power being determined based on a second difference between the temperature of the backlight light source and the first operating temperature, and the vehicle interior ambient temperature, the target heating power being proportional to the second difference, and the target heating power being inversely proportional to the vehicle interior ambient temperature.

[0009] In certain embodiments, the vehicle further comprises a temperature regulating device, wherein the temperature regulating device is used to adjust the ambient temperature within the vehicle.

[0010] In certain embodiments, the temperature regulating device is a fan or an air conditioner of the vehicle.

[0011] In some embodiments, the first operating temperature is determined based on the temperature characteristics of the backlight source; or the first operating temperature is determined based on the luminous efficiency of the backlight source; or the first operating temperature is determined by the temperature when the luminous efficiency of the backlight source is the highest.

[0012] In some embodiments, adjusting the brightness of the backlight light source to match the current ambient light brightness includes: determining a backlight brightness threshold that matches the current ambient light brightness, and when the brightness of the backlight light source reaches the backlight brightness threshold, the clarity of the content displayed by the head-up display device meets preset requirements; adjusting the power of the backlight light source so that the brightness of the backlight light source reaches the backlight brightness threshold.

[0013] In some embodiments, the method also includes: after adjusting the temperature of the backlight light source for a preset period of time, if the temperature of the backlight light source still does not reach the first operating temperature, adjusting the power of the backlight light source according to the temperature of the backlight light source and the first operating temperature so that the temperature of the backlight light source reaches the first operating temperature.

[0014] The display device of the embodiment of the present application is applied to a vehicle, and the vehicle includes a head-up display device, and the display device includes: a temperature adjustment module, used to adjust the temperature of the backlight source of the head-up display device to a first operating temperature; and a brightness adjustment module, used to adjust the brightness of the backlight source to match the current ambient light brightness.

[0015] The electronic device of the embodiment of the present application includes: a processor, the processor is connected to a memory; the memory stores a computer program, and the processor executes the computer program to implement instructions of the head-up display method described in any of the above embodiments.

[0016] The vehicle according to the embodiment of the present application includes the head-up display device described in any of the above embodiments or the electronic device described in any of the above embodiments.

[0017] The non-volatile computer-readable storage medium of the embodiment of the present application includes a computer program. When the computer program is executed by a processor, the processor executes the head-up display method described in any of the above embodiments.

[0018] The head-up display method, display device, electronic device, vehicle, and non-volatile computer-readable storage medium of the embodiment of the present application can make the light source work at the first working temperature as much as possible by adjusting the temperature of the backlight source to the first working temperature (such as by adjusting the temperature through the vehicle's existing air conditioner, etc.), thereby ensuring the HUD display effect and avoiding damage to the light source. Furthermore, by adjusting the brightness of the backlight source to match the current ambient light brightness, the HUD display effect can be improved, so that the driver can accurately distinguish the content displayed by the HUD from the road conditions, thereby ensuring driving safety.

[0019] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a schematic diagram of an application scenario of a head-up display method in some embodiments of the present application;

[0022] Figure 2 is a schematic diagram of a scene of a head-up display method in some embodiments of the present application;

[0023] Figure 3 is a schematic diagram of a scene of a head-up display method in some embodiments of the present application;

[0024] Figure 4 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0025] Figure 5 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0026] Figure 6 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0027] Figure 7 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0028] Figure 8 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0029] Fig. 9 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0030] Fig.10 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0031] Fig.11 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0032] Fig.12 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0033] Fig.13 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0034] Fig.14 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0035] Fig.15 is a flowchart of a head-up display method according to certain embodiments of the present application;

[0036] Fig.16 is a schematic diagram of a module of a head-up display device according to certain embodiments of the present application;

[0037] Fig.17It is a schematic diagram of the connection status of a non-volatile computer-readable storage medium and a processor in certain embodiments of the present application. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and cannot be understood as limiting the embodiments of the present application.

[0039] In order to solve the above technical problems, an embodiment of the present application provides a head-up display method.

[0040] The following first introduces an application scenario of the technical solution of this application. Figure 1 and Figure 2 As shown, the head-up display method provided by the present application can be applied to Figure 1 and Figure 2 The head-up display method is applied to a head-up display system 1000, which includes a vehicle 100, Figure 2 The scene of HUD display is shown as an example, in which the air-conditioning temperature, navigation information and road condition information are the projection information displayed by the HUD.

[0041] The vehicle 100 is any vehicle 100 equipped with a head-up display, such as a car, a truck, etc. In the implementation of the present application, the vehicle 100 is taken as an example to be described.

[0042] The vehicle 100 includes a head-up display device 20 , a vehicle body 50 , a processor 30 , and a memory 40 . The processor 30 is disposed inside the vehicle body 50 .

[0043] Among them, HUD devices are widely used in the vehicle field. Through HUD, drivers can observe driving information such as speed measurement, speed limit instructions, and driving route maps while driving.

[0044] In one embodiment, the vehicle 100 further includes a memory 40 , which can store a first operating temperature, a backlight brightness threshold, and the like.

[0045] In one embodiment, the vehicle body 50 includes a front windshield 501 , and the head-up display device 20 projects a projection onto the front windshield 501 .

[0046] Optionally, the head-up display device 20 includes a backlight source and an optical display module, etc., and the light of the backlight source passes through the optical module to form a projection.

[0047] In one embodiment, the vehicle 100 further includes a temperature regulating device (not shown in the figure), which is used to increase or decrease the temperature of the head-up display device (or the backlight source in the head-up display device).

[0048] Optionally, the temperature regulating device may be any device such as an air conditioner or a fan of the vehicle that can heat up or cool down the head-up display device (or the backlight source in the head-up display device).

[0049] In one embodiment, the head-up display system 1000 further includes a server 200, and the server 200 and the vehicle 100 communicate via a network; the first operating temperature of the vehicle 100, the preset brightness threshold, etc. may be stored in at least one of the vehicle 100 or the server 200. For example, the first operating temperature of the vehicle 100 is stored in the vehicle 100 and the server 200, and the temperature adjustment device is controlled according to the first operating temperature, or the first operating temperature of the vehicle 100 is stored in the vehicle 100, and the temperature adjustment device is controlled in an offline state.

[0050] In one embodiment, the server 200 may be an independent physical server 200, or a server 200 cluster or distributed system composed of multiple physical servers 200, or a cloud server 200 that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms. The embodiments of the present application are not limited to this.

[0051] In one embodiment, the vehicle 100 may include a display screen (not shown in the figure), which can display the temperature of the backlight source, the brightness of the backlight source, the working condition of the temperature adjustment device, etc. The display screen may also be an interactive touch screen, and the user may issue control commands by touching the display screen, such as modifying the brightness of the backlight source, etc.

[0052] In one embodiment, the head-up display system 1000 further includes a terminal 300, and the terminal 300 includes a display 301. The terminal 300 can communicate with the vehicle 100, thereby sending a voice request etc. received by the terminal 300 to the vehicle 100, and the display 301 of the terminal 300 can also display projection content etc. on the vehicle HUD.

[0053] In one embodiment, the terminal 300 may be, but is not limited to, various personal computers, laptop computers, smart phones, tablet computers, portable wearable devices, and the like.

[0054] In one embodiment, the vehicle 100, the server 200 and the terminal 300 all communicate through a network, such as any two of the vehicle 100, the server 200 and the terminal 300 can communicate wirelessly (such as wireless LAN (Wireless Fidelity, wifi) communication, Bluetooth communication, infrared communication, etc.).

[0055] It can be understood that the communication between the vehicle 100, the server 200 and the terminal 300 is not limited to the above communication method and is not restricted to this.

[0056] For example, when communicating via wifi, the vehicle 100 and the terminal 300 communicate with the server 200 respectively, and then the server 200 realizes the communication between the vehicle 100 and the server 200 (or the terminal 300); for example, when communicating via Bluetooth or infrared, the vehicle 100 and the terminal 300 are each provided with a corresponding communication module to directly realize the communication between the two.

[0057] In one embodiment, the head-up display method can be implemented by the vehicle 100 in an offline state; or by the vehicle 100 and the terminal 300; it can also be implemented by the vehicle 100 in an online state; or by the vehicle 100 and the terminal 300; or by the server 200 and the terminal 300; or by the vehicle 100, the server 200 and the terminal 300, and so on.

[0058] The head-up display method of this application will be described in detail below:

[0059] See also Figure 1 , Figure 2 and Figure 3 The embodiment of the present application provides a head-up display method, which is applied to the vehicle as described above, the vehicle includes a head-up display device, and the head-up display method includes:

[0060] Step 011: Adjust the temperature of the backlight source of the head-up display device to a first operating temperature.

[0061] Among them, the head-up display device can be a device that can project information into the field of view for HUD display, the backlight light source can be an LED lamp, a laser light source, etc. The backlight light source is a component of the head-up display device, and the light emitted by the backlight light source is projected through the optical display component (such as a lens, etc.) of the head-up display device. The temperature of the head-up display device can be obtained by obtaining the temperature of the head-up display device, thereby obtaining the temperature of the backlight light source in the head-up display device; when the backlight light source operates at the first operating temperature, the backlight light source has stable working performance, different backlight light sources have different first operating temperatures, which can be determined through experiments, table lookups, etc. The first operating temperature can be a temperature value or an operating temperature range, such as [-5,40], [-10,60], [-20,65] [unit: degrees Celsius (℃)], etc.

[0062] Optionally, the vehicle further includes a temperature regulating device for adjusting the ambient temperature within the vehicle.

[0063] The temperature regulating device may be a fan or an air conditioner of the vehicle.

[0064] Specifically, the Head Up Display (HUD) is also called the head-up display system, which displays some important information within the field of view of the normal observation direction without affecting the attention to the environment, and without having to divert the line of sight to observe the pointers and data on the dashboard. Figure 2 As shown, the present application applies HUD to vehicles, and its function is to project the vehicle's driving information (such as air-conditioning temperature, navigation information, road condition information, etc.) onto the windshield, so that the driver can see the driving information without lowering or turning his head.

[0065] A temperature sensor may be provided on the head-up display device to collect the temperature of the head-up display device, that is, to obtain the temperature of the backlight source in the head-up display device, and then the temperature of the backlight source may be adjusted to the first operating temperature by a temperature adjustment device (such as the air conditioner of the vehicle). For example, when the temperature of the backlight source is greater than the first operating temperature, the backlight source may be cooled by the air conditioner, fan, etc. on the vehicle, and when the temperature of the backlight source is less than the first operating temperature, the backlight source may be heated by the air conditioner, fan, etc. on the vehicle, so that the backlight source can operate at the first operating temperature, thereby ensuring that the backlight source has stable performance, preventing the backlight source from being damaged by excessively high or low temperatures, avoiding the backlight source from operating in harsh environments, and increasing the service life of the backlight source.

[0066] Optionally, the first operating temperature is a temperature at which the light effect of the backlight source reaches the highest.

[0067] The light effect may be the luminous efficiency of a backlight source, and may refer to the ratio of the total luminous flux emitted by the backlight source to the electrical power consumed by the backlight source. The higher the light effect, the higher the efficiency of converting electrical energy into light energy.

[0068] Specifically, when the backlight light source operates at the first operating temperature, the luminous efficiency (i.e., luminous efficiency) of the backlight light source can reach a maximum value. The greater the luminous efficiency, the stronger the ability of the backlight light source to convert electrical energy into light energy when operating. Then, while providing the same brightness, the energy-saving performance of the backlight light source is higher. Therefore, by controlling the temperature of the backlight light source to the first operating temperature, the energy-saving effect of the backlight light source can also be improved.

[0069] Optionally, the first operating temperature is determined according to the temperature characteristics of the backlight source; or the first operating temperature is determined according to the light efficiency of the backlight source; or the first operating temperature is determined by the temperature when the light efficiency of the backlight source is the highest.

[0070] The temperature characteristic of the backlight source may be the relationship between the luminous color of the backlight source and the temperature. For example, under a higher temperature condition, the color temperature of the backlight source is higher and the color is easily distorted.

[0071] Specifically, the first operating temperature of the backlight light source is determined according to the temperature characteristics. When the backlight light source operates at the first operating temperature, the color attributes of the light emitted by the backlight light source will not be distorted, thereby ensuring the projection effect. The first operating temperature can also be determined according to the temperature when the backlight light source has the highest light efficiency, for example, the temperature when the backlight light source has the highest light efficiency is taken as the first operating temperature; or, a certain temperature range is taken, and the temperature when the backlight light source has the highest light efficiency is taken as the median of the temperature range, and the temperature range is taken as the first operating temperature.

[0072] Step 012: Adjust the brightness of the backlight source to match the current ambient light brightness.

[0073] Specifically, an ambient light sensor can be set in the vehicle to sense the light intensity, thereby collecting the current ambient light brightness of the vehicle, and then adjusting the power of the backlight light source according to the current ambient light brightness to change the brightness of the backlight light source, so that the brightness of the backlight light source matches the current ambient light brightness, thereby improving the display effect of the HUD, ensuring user experience, and avoiding driving safety problems caused by the deterioration of the HUD display effect. For example, a mapping relationship between the ambient light brightness and the brightness of the backlight source can be established. When the current ambient light brightness is obtained, the target brightness of the backlight source is determined according to the mapping relationship, and then the power of the backlight source is adjusted so that the backlight source reaches the target brightness, so that the brightness of the backlight source matches the current ambient light brightness; or, the power of the backlight source is adjusted (i.e., the current of the backlight source is adjusted) so that the temperature of the backlight source reaches the first operating temperature, and then the brightness of the backlight source is adjusted to match the current ambient light brightness according to the current ambient light brightness. For example, when the temperature of the backlight source is high, the current of the backlight source can be reduced to reduce the temperature of the backlight source, and then the brightness of the backlight source is adjusted to match the current ambient light brightness according to the current ambient light brightness. Adjusting the brightness of the backlight source according to the current ambient light brightness can not only ensure the imaging clarity and visibility of the head-up display device, that is, ensure the display effect of the HUD, but also avoid problems such as the backlight source being too bright and increasing the energy consumption of the backlight source.

[0074] In this way, by adjusting the temperature of the backlight source to the first operating temperature (such as adjusting the temperature through the vehicle's existing air conditioning, etc.), it is possible to avoid adjusting the light source temperature by adjusting the light source brightness; since the temperature of the backlight source has been adjusted to the first operating temperature, it can be ensured that the light source will not be damaged by overheating. At this time, the brightness of the backlight source can be adjusted to match the current ambient light brightness, and the HUD display effect is better, which not only ensures the user experience, but also avoids driving safety problems caused by the deterioration of the HUD display effect.

[0075] Compared with the current practice of reducing the brightness of the backlight source when the temperature of the backlight source is high, the implementation manner of the present application adjusts the temperature of the backlight source to avoid adjusting the temperature of the light source by adjusting the brightness of the light source, thereby avoiding affecting the display effect of the HUD, and then adjusts the brightness of the backlight source according to the current ambient light brightness. The display effect of the HUD is better, which can not only improve the comfort of the driver in using the HUD to obtain driving information, but also improve the safety of driving, etc.

[0076] It can be understood that in a head up display (HUD), the operating temperature of the HUD will affect the service life and performance of the light source of the HUD. For example, taking the light source as an LED light source (Light Emitting Diode, LED lamp) as an example, in a high temperature environment, the material of the LED lamp may age and evaporate. In a low temperature environment, the semiconductor materials and electronic components in the LED lamp are affected by the low temperature and may expand and shrink, resulting in performance degradation and increased damage risk. Therefore, unsuitable operating temperature conditions will affect the service life of the LED lamp; for another example, taking the light source as an LED light source (Light Emitting Diode, LED lamp) as an example, when the operating temperature of the LED lamp is too high, the carrier concentration of the PN junction in the LED structure increases, and the internal electron and hole concentrations decrease, thereby resulting in a decrease in the brightness of the LED lamp and a decrease in the luminous efficiency; in a high temperature environment, the band gap of the LED lamp becomes narrower, resulting in a shorter wavelength of light emission and a color shift. A color with a large shift will cause projection distortion and affect the viewing experience. Therefore, temperature will affect the performance of the light source of the HUD.

[0077] At present, the temperature of the light source can be adjusted by adjusting the brightness of the light source to prevent the temperature of the light source from being too high, thereby damaging the light source. In order to ensure that the temperature of the light source is not too high, the brightness of the light source is generally adjusted to a lower level.

[0078] However, if the light source brightness is too low, the display effect of the HUD will be reduced. For example, when the light source brightness is too low but the ambient light intensity is high, the contrast between the HUD projection and the ambient light intensity may be insufficient, making it dim and difficult to see, resulting in insufficient clarity of the information display. The driver needs to divert more attention to identify the content of the HUD, affecting the driver's observation of the road, and thus affecting driving safety. Therefore, if the light source brightness is too low, the display effect of the HUD will be reduced, which will not only affect the user experience, but also affect driving safety in serious cases.

[0079] Therefore, by controlling the working condition of the temperature adjustment device (such as the air conditioner in the vehicle or a separately arranged mechanism for adjusting the temperature of the head-up display device), it is possible to avoid adjusting the light source temperature by adjusting the light source brightness, so that the temperature of the backlight light source is adjusted to the first operating temperature. Since the temperature of the backlight light source has been adjusted to the first operating temperature, it can be ensured that the light source will not be damaged by overheating. At this time, adjusting the brightness of the backlight light source to match the current ambient light brightness can make the HUD display effect better, which can not only ensure the user experience, but also avoid driving safety problems caused by the deterioration of the HUD display effect.

[0080] See also Figure 4In some embodiments, step 011: adjusting the temperature of the backlight source of the head-up display device to a first operating temperature includes:

[0081] Step 0111: determining an adjustment strategy for the vehicle interior ambient temperature according to the vehicle interior ambient temperature, the temperature of the backlight source, and the adjustment characteristics of the vehicle interior ambient temperature;

[0082] Step 0112: According to the adjustment strategy of the in-vehicle ambient temperature, adjust the in-vehicle ambient temperature so that the temperature of the backlight source reaches the first operating temperature.

[0083] Among them, the adjustment characteristics of the in-vehicle ambient temperature may include the characteristics of a temperature adjustment device (such as the vehicle's air conditioner, fan, etc.) used to adjust the in-vehicle ambient temperature. The adjustment characteristics may be the power change characteristics of the temperature adjustment device when adjusting the in-vehicle ambient temperature to the first operating temperature under different in-vehicle ambient temperature conditions. For example, the adjustment characteristics may be that when the difference between the in-vehicle ambient temperature and the first operating temperature is large, the air conditioner uses greater power to heat up or cool down, and when the difference between the in-vehicle ambient temperature and the first operating temperature is small, the air conditioner uses less power to heat up or cool down; the adjustment strategy may be a temperature adjustment strategy corresponding to the working mode of the temperature adjustment device, such as a heating strategy corresponding to the heating working mode, a cooling strategy corresponding to the cooling working mode, etc.

[0084] Specifically, a first temperature sensor can be set on the head-up display device to collect the temperature of the head-up display device, that is, to obtain the temperature of the backlight source in the head-up display device; a second temperature sensor can be set inside the vehicle to collect the ambient temperature in the vehicle. The temperature of the backlight source is monitored by the first temperature sensor, and the ambient temperature in the vehicle is monitored by the second temperature sensor. Then, according to the ambient temperature in the vehicle, the temperature of the backlight source, and the adjustment characteristics of the ambient temperature in the vehicle, the adjustment strategy (such as a heating strategy or a cooling strategy, etc.) when the temperature adjustment structure adjusts the ambient temperature in the vehicle is determined; then, according to the adjustment strategy, the temperature adjustment device is controlled to work, thereby adjusting the ambient temperature in the vehicle. After adjusting the ambient temperature in the vehicle, since the backlight source and the ambient temperature in the vehicle are heat transferred, the temperature of the backlight source can also be adjusted until it is adjusted to the first working temperature. For example, taking the first operating temperature of the backlight source as 25 degrees Celsius (℃), and the temperature adjustment device in the car as the vehicle's air conditioner, when the collected ambient temperature in the car is 30℃ and the temperature of the backlight source is 35℃, the adjustment strategy is determined to be a cooling strategy based on the ambient temperature in the car, the temperature of the backlight source and the characteristics of the air conditioner, and the air conditioner is controlled to cool down the ambient temperature in the car so that the temperature of the backlight source can also be reduced to the first operating temperature.

[0085] See also Figure 5 and Figure 6Optionally, step 0111: determining an adjustment strategy for the in-vehicle ambient temperature according to the in-vehicle ambient temperature, the temperature of the backlight source, and the adjustment characteristics of the in-vehicle ambient temperature, including:

[0086] Step 01111: when the temperature of the backlight source is greater than the first operating temperature, determining the adjustment strategy to reduce the vehicle interior ambient temperature by a target cooling power, wherein the target cooling power is determined according to the vehicle interior ambient temperature and the adjustment characteristics of the vehicle interior ambient temperature;

[0087] Step 01112: When the temperature of the backlight source is lower than the first operating temperature, determine an adjustment strategy to increase the in-vehicle ambient temperature with a target heating power, wherein the target heating power is determined according to the in-vehicle ambient temperature and the regulation characteristics of the in-vehicle ambient temperature.

[0088] Among them, the target cooling power or target heating power is determined according to the ambient temperature inside the vehicle and the temperature control device inside the vehicle. For the same ambient temperature inside the vehicle, the target cooling power or target heating power of different temperature control devices may be different; for the same temperature control device, when the backlight source is under different temperature conditions, the target cooling power or target heating power may also be different.

[0089] Specifically, when the temperature of the backlight source is greater than the first operating temperature, the adjustment strategy is determined to reduce the in-vehicle ambient temperature with the target cooling power, and when the temperature of the backlight source is less than the first operating temperature, the adjustment strategy is determined to increase the in-vehicle ambient temperature with the target heating power. According to the in-vehicle ambient temperature, the temperature of the backlight source, and the regulation characteristics of the in-vehicle ambient temperature, different temperature adjustment strategies are set for the in-vehicle ambient temperature, that is, different target heating powers or target cooling powers are set to adjust the in-vehicle ambient temperature, so that the temperature of the backlight source of the head-up display device can be relatively stably maintained at the first operating temperature, ensuring that the backlight source has stable performance.

[0090] See also Figure 7 and Figure 8 In some embodiments, step 011: adjusting the temperature of the backlight source of the head-up display device to a first operating temperature includes:

[0091] Step 0113: when the temperature of the backlight source is greater than the first operating temperature, lowering the vehicle interior environment temperature so that the temperature of the backlight source is lowered to the first operating temperature;

[0092] Step 0114: when the temperature of the backlight source is lower than the first operating temperature, increase the ambient temperature in the vehicle so that the temperature of the backlight source rises to the first operating temperature.

[0093] Specifically, the first operating temperature may be a temperature value or a temperature range. For example, taking the first operating temperature as a temperature range as an example, when the temperature of the backlight source is greater than the maximum temperature value of the temperature range of the first operating temperature, the vehicle interior environment temperature is lowered by, for example, an air conditioner or fan on the vehicle, thereby cooling the backlight source, so that the backlight source operates within the first operating temperature range; when the temperature of the backlight source is less than the minimum temperature value of the temperature range of the first operating temperature, the vehicle interior environment temperature is lowered by, for example, an air conditioner or fan on the vehicle, thereby heating the backlight source, so that the backlight source operates within the first operating temperature range.

[0094] For example, the temperature range of the first operating temperature is [-5, 60] (unit: ° C), that is, when the backlight light source works in the temperature range of [-5, 60] (unit: ° C), the light efficiency of the backlight light source is the highest. The temperature of the vehicle environment is adjusted by a fan, and the temperature of the backlight light source is collected by the temperature sensor of the head-up display device. When the temperature sensor of the head-up display device collects the temperature of the head-up display device (that is, the backlight light source) as -4 ° C, which is less than the minimum temperature of the first operating temperature of -5 ° C, the fan is controlled to supply hot air to the head-up display device to increase the temperature of the vehicle environment, so that the backlight light source works within the temperature range of [-5, 60] (unit: ° C); when the temperature sensor of the head-up display device collects the temperature of the head-up display device (that is, the backlight light source) as 65 ° C, which is greater than the maximum temperature of the first operating temperature of 60 ° C, the fan is controlled to supply cold air to the head-up display device to reduce the temperature of the vehicle environment, so that the temperature of the backlight light source is cooled and works within the temperature range of [-5, 60] (unit: ° C).

[0095] See also Fig. 9 and Fig.10 In some embodiments, step 011: adjusting the temperature of the backlight source of the head-up display device to a first operating temperature includes:

[0096] Step 0115: when the temperature of the backlight source is greater than the first operating temperature, lowering the vehicle interior ambient temperature with a target cooling power, the target cooling power being determined according to a first difference between the temperature of the backlight source and the first operating temperature, and the vehicle interior ambient temperature, and the target cooling power being proportional to the first difference and the vehicle interior ambient temperature respectively;

[0097] Step 0116: When the temperature of the backlight source is lower than the first operating temperature, the target heating power is used to lower the ambient temperature in the vehicle. The target heating power is determined based on a second difference between the temperature of the backlight source and the first operating temperature and the ambient temperature in the vehicle. The target heating power is proportional to the second difference, and the target heating power is inversely proportional to the ambient temperature in the vehicle.

[0098] Among them, the target cooling power (or target heating power) can be the power that, when the temperature control device (such as the vehicle's air conditioner, fan, etc.) is used to lower (or increase) the ambient temperature inside the vehicle, the temperature control device (such as the vehicle's air conditioner, fan, etc.) can achieve the cooling target (or heating target) while keeping the temperature control device (such as the vehicle's air conditioner, fan, etc.) system stable and with low energy consumption; it can also be the maximum power of the temperature control device (such as the vehicle's air conditioner, fan, etc.) when performing cooling (or heating) work on the ambient temperature inside the vehicle.

[0099] Specifically, the target cooling power is determined according to the first difference between the temperature of the backlight source and the first operating temperature and the vehicle interior ambient temperature, the target cooling power is proportional to the first difference, the target cooling power is proportional to the vehicle interior ambient temperature, and when the temperature of the backlight source is greater than the first operating temperature, the vehicle interior ambient temperature is cooled by a temperature regulating device (such as the vehicle's air conditioner, fan, etc.), and the target cooling power can be determined according to the difference between the temperature of the backlight source and the first operating temperature and the vehicle interior ambient temperature. It can be understood that the greater the first difference between the temperature of the backlight source and the first operating temperature, that is, the greater the temperature difference, the more energy is needed to cool the backlight source, and the target cooling power is proportional to the difference; and when the vehicle interior ambient temperature is high, the efficiency of heat transfer between the vehicle interior environment and the backlight source will deteriorate, so the target cooling power is proportional to the ambient temperature. Therefore, in a high temperature environment, in order to make the backlight source quickly reach the first operating temperature, it can be achieved by setting a larger target cooling power.

[0100] That is to say, the first power of the temperature regulating device (such as the vehicle's air conditioner, fan, etc.) for cooling the vehicle interior environment can be determined based on the difference between the temperature of the backlight source and the first operating temperature, and then a first adjustment coefficient for the first power can be determined based on the ambient temperature. The first power can be adjusted based on the first adjustment coefficient to determine the second power, and the second power is the cooling target power.

[0101] For example, taking the case where the interior of a car is cooled by a fan, the temperature of the backlight source is 80°C, the first operating temperature includes a temperature range, and the maximum value of the temperature range of the first operating temperature is 60°C, the minimum value is 5°C, and the ambient temperature is 30°C as an example, the first power of the fan for cooling is determined to be 100 watts (W) by the difference between the temperature of the backlight source and the maximum value of the first operating temperature range, and the first adjustment coefficient for the first power is determined to be 0.8 according to the ambient temperature. According to the first adjustment coefficient, the second power is obtained as 100*0.8=80W, that is, the target cooling power is 80W, and the fan cools the interior temperature of the car with the target cooling power of 80W.

[0102] The target heating power can be determined based on the second difference between the temperature of the backlight source and the first operating temperature and the ambient temperature in the vehicle, the target cooling power is proportional to the second difference, and the target heating power is inversely proportional to the ambient temperature in the vehicle. When the temperature of the backlight source is lower than the first operating temperature, the ambient temperature in the vehicle is heated by a temperature regulating device (such as the vehicle's air conditioner, fan, etc.), and the target heating power can be set based on the difference between the temperature of the backlight source and the first operating temperature and the ambient temperature in the vehicle. It can be understood that the greater the difference between the temperature of the backlight source and the first operating temperature, that is, the greater the temperature difference, the more energy is needed to heat up the backlight source, and the target cooling power is proportional to the difference; and when the ambient temperature in the vehicle is high, less energy is needed to meet the heating requirements of the backlight source, so the ambient temperature in the vehicle is inversely proportional to the target heating power.

[0103] Similarly, the third power of the temperature control device (such as the vehicle's air conditioner, fan, etc.) during heating can be determined based on the difference between the temperature of the backlight source and the first operating temperature, and then the second adjustment coefficient for the third power can be determined based on the ambient temperature inside the vehicle. Based on the second adjustment coefficient, the third power is adjusted to determine the fourth power, which is the target power for heating.

[0104] For example, taking the case where the temperature of the vehicle interior is heated by a fan, the temperature of the backlight source is 0°C, the first operating temperature includes a temperature range, and the maximum value of the temperature range of the first operating temperature is 60°C, the minimum value is 5°C, and the ambient temperature is 30°C as an example, the second power of the fan for heating is determined to be 100W by the difference between the temperature of the backlight source and the minimum value of the first operating temperature range, and the second adjustment coefficient for the second power is determined to be 0.5 according to the ambient temperature in the vehicle. According to the second adjustment coefficient, the second power is 100*0.5=50W, that is, the target heating power is 50W, and the fan heats the ambient temperature in the vehicle with the target heating power of 50W.

[0105] See also Fig.11 In some embodiments, the temperature adjustment device can also be used to adjust the temperature of the backlight source. Step 011: adjusting the temperature of the backlight source of the head-up display device to a first operating temperature includes:

[0106] Step 0117: Adjust the temperature of the backlight source to the first operating temperature by adjusting the working condition of the temperature adjustment device.

[0107] The temperature regulating device may also be a fan, a radiator, a condenser sheet or a heating film etc. arranged on the head-up display device.

[0108] Specifically, the temperature of the head-up display device (and the backlight source in the head-up display device) can be adjusted by setting a temperature adjustment device on the head-up display device of the vehicle and utilizing the working condition of the temperature adjustment device. For example, when the temperature of the backlight source is greater than the first working temperature, the working condition of the temperature adjustment device is adjusted to cooling, and the power of the temperature adjustment device is set to the first target cooling power, and the temperature adjustment device is controlled to perform cooling work to cool the temperature of the backlight source to the first working temperature; when the temperature of the backlight source is less than the first working temperature, the working condition of the temperature adjustment device is adjusted to heating, and the power of the temperature adjustment device is set to the first target heating power, and the temperature adjustment device is controlled to perform heating work to heat the temperature of the backlight source to the first working temperature.

[0109] If only the temperature adjustment device with the maximum power is considered to increase or decrease the temperature of the backlight source so that the backlight source can reach the first working temperature as soon as possible, then, as the temperature of the backlight source gradually approaches the first working temperature, the temperature adjustment device always maintains the maximum power to work, which may cause mechanical vibration. For example, taking the temperature adjustment device as a fan, and using the fan to cool the backlight source as an example, when the fan always runs at the maximum power, the fan continues to maintain a high speed to cool the head-up display device, which may cause the dynamic balance of the fan to be unbalanced, thereby causing vibration, and the vibration of the fan may be transmitted to the machine connected thereto, thereby causing mechanical vibration, affecting the stability of the temperature adjustment device, the head-up display device, etc., causing system oscillation, etc. The working condition of the temperature adjustment device is adjusted according to the ambient temperature and the temperature of the backlight source. For example, when starting the heating or cooling operation, the working condition of the temperature adjustment device can be adjusted to the maximum power. As the temperature of the backlight source approaches the first working temperature, the power of the temperature adjustment device is gradually reduced, so that the temperature adjustment device can achieve the fastest cooling of the backlight source and ensure the stability of the system.

[0110] See also Fig.12 In some embodiments, step 012: adjusting the brightness of the backlight source to match the current ambient light brightness includes:

[0111] Step 0121: determining a backlight brightness threshold that matches the current ambient light brightness, and when the brightness of the backlight light source reaches the backlight brightness threshold, the clarity of the content displayed by the head-up display device meets the preset requirement;

[0112] Step 0122: Adjust the power of the backlight source so that the brightness of the backlight source reaches the backlight brightness threshold.

[0113] Among them, when the brightness of the backlight light source reaches the backlight brightness threshold, the clarity of the head-up display content meets the preset clarity requirement when the human eye observes the HUD display content. The backlight brightness threshold can be a brightness value or a brightness range value.

[0114] Specifically, when the backlight brightness displayed by the backlight light source is within the backlight brightness threshold, the clarity of the content displayed by the HUD meets the clarity requirement required by the user when viewing the displayed content; then by adjusting the power of the backlight light source, the brightness of the backlight light source is adjusted so that the brightness of the backlight light source can reach the backlight brightness threshold, so that the display effect of the HUD is better.

[0115] See also Fig.13 and Fig.14 In some embodiments, step 0122: adjusting the power of the backlight source so that the brightness of the backlight source reaches the backlight brightness threshold, includes:

[0116] Step 01221: when the brightness of the backlight source is less than the backlight brightness threshold, increase the power of the backlight source so that the brightness of the backlight source reaches the backlight brightness threshold;

[0117] Step 01222: When the brightness of the backlight source is greater than the backlight brightness threshold, reduce the power of the backlight source so that the brightness of the backlight source reaches the brightness threshold.

[0118] Specifically, taking the backlight brightness threshold as the brightness range value as an example for explanation, when the brightness of the backlight light source is less than the backlight brightness threshold in the brightness range, under the condition of the minimum brightness requirement, it is considered that the brightness of the HUD display at this time is insufficient to support the clarity requirement required by the human eye when viewing the HUD, the power of the backlight light source can be increased to increase the brightness of the backlight light source so that the brightness of the backlight light source reaches the backlight brightness threshold, thereby meeting the user's demand for the clarity of the backlight light source display; when the brightness of the backlight light source is greater than the backlight brightness threshold in the brightness range, under the condition of the maximum brightness requirement, it is considered that the brightness of the HUD display at this time is too high, which may easily cause the driver to be unable to see obstacles on the road ahead, etc., causing driving risks, and the power of the backlight light source can be reduced so that the brightness of the backlight light source reaches the brightness threshold, thereby meeting the user's demand for the clarity of the backlight light source display and improving driving safety.

[0119] See also Fig.15 In some embodiments, the head-up display method further includes:

[0120] Step 013: After adjusting the temperature of the backlight source for a preset period of time, if the temperature of the backlight source still does not reach the first operating temperature, adjust the power of the backlight source according to the temperature of the backlight source and the first operating temperature so that the temperature of the backlight source reaches the first operating temperature.

[0121] Among them, the preset time can be 5 minutes (min), 6min, 7min, 10min, 15min and other preset times.

[0122] Specifically, when the temperature of the backlight source is increased or decreased by the temperature adjustment device, if after a preset time, the temperature of the backlight source still does not reach the first operating temperature, the power of the backlight source is adjusted to change the current, thereby helping the backlight source to adjust the temperature to reach the first operating temperature and reach the operating point of maximum light efficiency. In other words, if the temperature of the backlight source still does not reach the first operating temperature after the temperature adjustment of the preset time, the power of the backlight source can be increased to increase the current, or if the temperature of the backlight source still does not reach the first operating temperature after the temperature adjustment of the preset time, the power of the backlight source can be reduced to reduce the current, thereby enabling the temperature of the backlight source to reach the first operating temperature and ensure the light efficiency.

[0123] See also Fig.16 In order to better implement the display method of the embodiment of the present application, the embodiment of the present application further provides a display device 10. The display device 10 is applied to a vehicle, and the vehicle includes a head-up display device. The display device 10 may include a temperature adjustment module 11 and a brightness adjustment module 12. The temperature adjustment module 11 is used to adjust the temperature of the backlight source of the head-up display device to a first operating temperature; the brightness adjustment module 12 is used to adjust the brightness of the backlight source to match the current ambient light brightness.

[0124] In one embodiment, the temperature adjustment module 11 is also specifically used to determine the adjustment strategy of the in-vehicle ambient temperature based on the in-vehicle ambient temperature, the temperature of the backlight light source and the regulation characteristics of the in-vehicle ambient temperature; and adjust the in-vehicle ambient temperature according to the adjustment strategy of the in-vehicle ambient temperature so that the temperature of the backlight light source is reached to the first operating temperature.

[0125] In one embodiment, the temperature adjustment module 11 is also specifically used to determine, when the temperature of the backlight light source is greater than the first operating temperature, an adjustment strategy to lower the vehicle interior ambient temperature with a target cooling power, the target cooling power being determined based on the vehicle interior ambient temperature and the regulation characteristics of the vehicle interior ambient temperature; and when the temperature of the backlight light source is lower than the first operating temperature, an adjustment strategy to raise the vehicle interior ambient temperature with a target heating power being determined based on the vehicle interior ambient temperature and the regulation characteristics of the vehicle interior ambient temperature.

[0126] In one embodiment, the temperature adjustment module 11 is specifically used to adjust the temperature of the backlight source of the head-up display device to a first operating temperature, including: when the temperature of the backlight source is greater than the first operating temperature, lowering the ambient temperature in the vehicle so that the temperature of the backlight source is cooled to the first operating temperature; when the temperature of the backlight source is lower than the first operating temperature, increasing the ambient temperature in the vehicle so that the temperature of the backlight source is heated to the first operating temperature.

[0127] In one embodiment, the temperature adjustment module 11 is also specifically used to reduce the vehicle interior ambient temperature with a target cooling power when the temperature of the backlight light source is greater than the first operating temperature, the target cooling power is determined based on a first difference between the temperature of the backlight light source and the first operating temperature, and the vehicle interior ambient temperature, and the target cooling power is proportional to the first difference and the vehicle interior ambient temperature, respectively; when the temperature of the backlight light source is lower than the first operating temperature, the vehicle interior ambient temperature is reduced with a target heating power, the target heating power is determined based on a second difference between the temperature of the backlight light source and the first operating temperature, and the vehicle interior ambient temperature, the target heating power is proportional to the second difference, and the target heating power is inversely proportional to the vehicle interior ambient temperature.

[0128] In one embodiment, the brightness adjustment module 12 is specifically used to determine a backlight brightness threshold that matches the current ambient light brightness. When the brightness of the backlight light source reaches the backlight brightness threshold, the clarity of the content displayed by the head-up display device meets preset requirements and adjusts the power of the backlight light source so that the brightness of the backlight light source reaches the backlight brightness threshold.

[0129] In one embodiment, the display device 10 also includes an adjustment module 13, which is used to adjust the power of the backlight light source according to the temperature of the backlight light source and the first operating temperature if the temperature of the backlight light source has not reached the first operating temperature after adjusting the temperature of the backlight light source for a preset period of time, so that the temperature of the backlight light source reaches the first operating temperature.

[0130] The display device 10 is described above from the perspective of functional modules in conjunction with the accompanying drawings. The functional modules can be implemented in hardware form, can be implemented in software form, or can be implemented in combination with hardware and software modules. Specifically, the steps of the method embodiments in the embodiments of the present application can be completed by hardware integrated logic circuits in the processor and / or software form instructions, and the steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware encoding processor, or can be executed by a combination of hardware and software modules in the encoding processor. Optionally, the software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory, and completes the steps in the above method embodiments in combination with its hardware.

[0131] The electronic device of the embodiment of the present application includes a processor, the processor is connected to a memory, a computer program is stored in the memory, and the processor executes the computer program to implement any one of the head-up display methods described above, which will not be described in detail here for the sake of brevity.

[0132] The electronic device may be used as a processor of the vehicle, and the electronic device may be installed in the vehicle so that the vehicle can implement the head-up display method of any of the above-mentioned embodiments through the electronic device.

[0133] Please refer again Figure 1 The vehicle 100 of the embodiment of the present application includes the head-up display device or electronic device of the above embodiment, such as the head-up display device or electronic device is the processor 30 of the vehicle 100. The vehicle 100 implements any of the above head-up display methods through the head-up display device or electronic device.

[0134] See also Fig.17 The embodiment of the present application further provides a computer-readable storage medium 600 on which a computer program 610 is stored. When the computer program 610 is executed by a processor 620, the steps of the head-up display method of any of the above-mentioned embodiments are implemented. For the sake of brevity, they are not repeated here.

[0135] In the description of this specification, the descriptions with reference to the terms "certain embodiments", "in an example", "exemplarily", etc., mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0136] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0137] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A head-up display method, characterized in that: Applied to a vehicle, the vehicle includes a head-up display device, and the method includes: adjusting the temperature of the backlight source of the head-up display device to a first operating temperature; The brightness of the backlight source is adjusted to match the current ambient light brightness.

2. The head-up display method according to claim 1, characterized in that: The step of adjusting the temperature of the backlight source of the head-up display device to a first operating temperature includes: Determining an adjustment strategy for the in-vehicle ambient temperature according to the in-vehicle ambient temperature, the temperature of the backlight light source, and the adjustment characteristics of the in-vehicle ambient temperature; According to the adjustment strategy of the in-vehicle ambient temperature, the in-vehicle ambient temperature is adjusted to make the temperature of the backlight source reach the first operating temperature.

3. The head-up display method according to claim 2, characterized in that: The step of determining the adjustment strategy of the vehicle interior ambient temperature according to the vehicle interior ambient temperature, the temperature of the backlight source, and the adjustment characteristics of the vehicle interior ambient temperature includes: In the case where the temperature of the backlight source is greater than the first operating temperature, determining that the adjustment strategy is to reduce the in-vehicle ambient temperature by a target cooling power, wherein the target cooling power is determined according to the in-vehicle ambient temperature and a regulation characteristic of the in-vehicle ambient temperature; When the temperature of the backlight source is lower than the first operating temperature, the adjustment strategy is determined to increase the in-vehicle ambient temperature by a target heating power, and the target heating power is determined according to the in-vehicle ambient temperature and a regulation characteristic of the in-vehicle ambient temperature.

4. The head-up display method according to claim 1, characterized in that: The step of adjusting the temperature of the backlight source of the head-up display device to a first operating temperature includes: When the temperature of the backlight source is greater than the first operating temperature, lowering the ambient temperature in the vehicle so that the temperature of the backlight source is lowered to the first operating temperature; When the temperature of the backlight source is lower than the first operating temperature, the vehicle interior environment temperature is increased so that the temperature of the backlight source is increased to the first operating temperature.

5. The head-up display method according to claim 1, characterized in that: The step of adjusting the temperature of the backlight source of the head-up display device to a first operating temperature includes: When the temperature of the backlight source is greater than the first operating temperature, lowering the in-vehicle ambient temperature with a target cooling power, wherein the target cooling power is determined according to a first difference between the temperature of the backlight source and the first operating temperature, and the in-vehicle ambient temperature, and the target cooling power is proportional to the first difference and the in-vehicle ambient temperature, respectively; When the temperature of the backlight light source is lower than the first operating temperature, the target heating power is used to lower the ambient temperature in the vehicle. The target heating power is determined based on a second difference between the temperature of the backlight light source and the first operating temperature and the ambient temperature in the vehicle. The target heating power is proportional to the second difference, and the target heating power is inversely proportional to the ambient temperature in the vehicle.

6. The head-up display method according to any one of claims 2 to 5, characterized in that: The vehicle further comprises a temperature regulating device, and the temperature regulating device is used to adjust the ambient temperature in the vehicle.

7. The head-up display method according to claim 6, characterized in that: The temperature adjustment device is a fan or an air conditioner of the vehicle.

8. The head-up display method according to any one of claims 1 to 6, characterized in that: The first operating temperature is determined according to the temperature characteristics of the backlight source; or the first operating temperature is determined according to the light efficiency of the backlight source; or the first operating temperature is determined by the temperature when the light efficiency of the backlight source is the highest.

9. The head-up display method according to claim 1, characterized in that: The step of adjusting the brightness of the backlight source to match the current ambient light brightness includes: Determining a backlight brightness threshold that matches the current ambient light brightness, and when the brightness of the backlight light source reaches the backlight brightness threshold, the clarity of the content displayed by the head-up display device meets a preset requirement; The power of the backlight light source is adjusted so that the brightness of the backlight light source reaches the backlight brightness threshold.

10. The head-up display method according to claim 1, characterized in that: The method further comprises: After adjusting the temperature of the backlight light source for a preset period of time, if the temperature of the backlight light source still does not reach the first operating temperature, the power of the backlight light source is adjusted according to the temperature of the backlight light source and the first operating temperature so that the temperature of the backlight light source reaches the first operating temperature.

11. A display device, characterized in that: Applied to a vehicle, the vehicle includes a head-up display device, and the display device includes: A temperature adjustment module, used for adjusting the temperature of the backlight source of the head-up display device to a first operating temperature; The brightness adjustment module is used to adjust the brightness of the backlight source to match the current ambient light brightness.

12. An electronic device, characterized in that: include: A processor, the processor is connected to a memory; a computer program is stored in the memory, and the processor executes the computer program to implement the instructions of the head-up display method according to any one of claims 1 to 10.

13. A vehicle, characterized in that: include: The display device according to claim 11 or the electronic device according to claim 12.

14. A non-volatile computer-readable storage medium containing a computer program, characterized in that: When the computer program is executed by a processor, the processor executes the head-up display method according to any one of claims 1 to 10.

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