Display device control method, storage medium, computer program product, electronic device, display device, and vehicle

Abstract

The present application relates to a display device control method, a storage medium, a computer program product, an electronic device, a display device and a vehicle, wherein the display device control method comprises: outputting a control instruction for controlling the screen brightness of the display device according to screen status data of the display device so that the screen brightness of the display device is adapted to the screen temperature. The beneficial effect of the present application is to provide a display device control method, a storage medium, a computer program product, an electronic device, a display device and a vehicle for adjusting the display device temperature by adjusting the display device brightness to increase the service life of the display device.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a display device control method, a storage medium, a computer program product, an electronic device, a display device and a vehicle. Background Art

[0002] With the continuous development of smart cockpits, the number of vehicle-mounted LCD screens has gradually increased, which has also brought about many screen display failure problems, such as black screen, flowery screen, flashing screen, etc. Some of the failure causes are screen damage caused by the mismatch between temperature and display status. Summary of the invention

[0003] The embodiments of the present application provide a display device control method, a storage medium, a computer program product, an electronic device, a display device and a vehicle, which improve the safety of the display device and at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a display device control method is provided, comprising: according to screen status data of the display device, outputting a control instruction for controlling the screen brightness of the display device so that the screen brightness of the display device is adapted to the screen temperature.

[0005] Optionally, in some embodiments of the present application, outputting a control instruction for controlling the screen brightness of the display device according to the screen status data of the display device so that the screen brightness of the display device is adapted to the screen temperature includes:

[0006] According to the screen status data, a screen brightness corresponding to the screen status data is queried or generated.

[0007] Optionally, in some embodiments of the present application, before outputting a control instruction for controlling the screen brightness of the display device according to the screen state data of the display device so that the screen brightness of the display device is adapted to the screen temperature, the method further includes:

[0008] It is determined whether screen status data related to the temperature of the display device reaches a preset condition.

[0009] Optionally, in some embodiments of the present application, before determining whether the screen status data related to the temperature of the display device meets a preset condition, it also includes: after waiting for a preset time, obtaining the screen status data related to the temperature of the display device.

[0010] Optionally, in some embodiments of the present application, the screen status data includes: ambient temperature, screen temperature and screen backlight brightness.

[0011] Optionally, in some embodiments of the present application, the screen temperature is temperature information corresponding to the resistance value of a thermistor in the display device.

[0012] Optionally, in some embodiments of the present application, the preset condition includes:

[0013] The screen temperature is greater than or equal to a first temperature threshold.

[0014] Optionally, in some embodiments of the present application, the control instruction includes:

[0015] When the screen temperature is greater than or equal to a first temperature threshold, the current screen backlight brightness is reduced to a first preset brightness.

[0016] Optionally, in some embodiments of the present application, the current screen backlight brightness is reduced to a first preset brightness, and the change in the screen backlight brightness satisfies the following formula:

[0017] T<85℃, real-time screen backlight brightness percentage = 100%;

[0018] 85℃≤T≤95℃, real-time screen backlight brightness percentage = (-0.1×T+9.5)×100%;

[0019] T>95℃, real-time screen backlight brightness percentage = 0%;

[0020] Wherein, T is the real-time display screen temperature.

[0021] Optionally, in some embodiments of the present application, the control instruction further includes:

[0022] The time interval for acquiring the temperature-related screen status data of the display device is dynamically adjusted according to the rising rate of the screen temperature and the difference between the current screen backlight brightness and the first preset brightness.

[0023] Optionally, in some embodiments of the present application, the preset condition further includes:

[0024] The screen temperature is less than or equal to a second temperature threshold;

[0025] The second temperature threshold is lower than the first temperature threshold.

[0026] Optionally, in some embodiments of the present application, the control instruction further includes:

[0027] When the screen temperature is less than or equal to the second temperature threshold, the current screen backlight brightness is increased to a second preset brightness.

[0028] Optionally, in some embodiments of the present application, the current screen backlight brightness is increased to a second preset brightness, and the change in the screen backlight brightness satisfies the following formula:

[0029] T<80℃, real-time screen backlight brightness percentage = 100%;

[0030] 80℃≤T≤90℃, real-time screen backlight brightness percentage = (-0.1×T+9.0)×100%;

[0031] T>90℃, real-time screen backlight brightness percentage = 0%;

[0032] Wherein, T is the real-time display screen temperature.

[0033] Optionally, in some embodiments of the present application, the control instruction further includes:

[0034] The time interval for acquiring the temperature-related screen status data of the display device is dynamically adjusted according to the rate of decrease of the screen temperature and the difference between the current screen backlight brightness and the second preset brightness.

[0035] Optionally, in some embodiments of the present application, the screen status data includes a backlight PWM signal duty cycle, which is used to adjust the screen backlight brightness by adjusting the size of the backlight PWM signal duty cycle.

[0036] Optionally, in some embodiments of the present application, after outputting a control instruction for controlling the brightness of the display device, the display device control method further includes:

[0037] Sending a temperature abnormality alarm prompt, wherein the temperature abnormality alarm prompt is configured as a message displayed on a display panel of a display device and an alarm prompt sound.

[0038] Optionally, in some embodiments of the present application, the display device control method further includes:

[0039] When a manual brightness adjustment operation of the display device is detected, the automatic adjustment of the brightness of the display device is stopped, and after the manually adjusted brightness value is maintained for a preset time, the automatic adjustment of the brightness of the display device is restarted.

[0040] Optionally, in some embodiments of the present application, the artificial display device brightness adjustment operation includes:

[0041] Adjust the brightness of the display device by using the physical buttons on the display device;

[0042] And / or, adjusting the brightness of the display device through a graphical operating interface of the display device.

[0043] According to a second aspect of the present application, a storage medium is provided, on which a computer program is stored, and when the computer program is processed and executed, the above-mentioned display device control method is implemented.

[0044] According to a third aspect of the present application, a computer program product is provided, comprising a computer program, wherein the computer program implements the aforementioned display device control method when executed by a processor.

[0045] According to a fourth aspect of the present application, an electronic device is provided, the electronic device comprising:

[0046] a memory storing a computer program;

[0047] The processor is used to execute the computer program in the memory to implement the above-mentioned display device control method.

[0048] According to a fifth aspect of the present application, a display device is provided for implementing the above-mentioned display device control method.

[0049] Optionally, in some embodiments of the present application, a display panel includes:

[0050] Backlight source;

[0051] A sensing unit, the sensing unit being used at least to measure a temperature of the display panel;

[0052] A backlight driving unit, used for providing power to the backlight source;

[0053] A processing unit is used to control the output current of the backlight driving unit according to the temperature of the display panel measured by the sensing unit to adjust the brightness of the backlight source.

[0054] Optionally, in some embodiments of the present application, the display device further includes:

[0055] A controller, used to receive temperature information from the processing unit and issue an alarm when the temperature is abnormal;

[0056] and / or, for stopping automatic temperature control of the processing unit and sending a manual temperature control signal to the processing unit;

[0057] The controller is also used to restart the automatic temperature control of the processing unit after the processing unit receives the manual temperature control signal for a preset time period.

[0058] Optionally, in some embodiments of the present application, the processing unit controls the output current of the backlight driving unit by outputting a PWM signal.

[0059] Optionally, in some embodiments of the present application, the processing unit is a timing controller for controlling the power on and off timing of the display device power supply and signal, and adjusting the brightness of the backlight source by adjusting the duty cycle of the PWM signal.

[0060] Optionally, in some embodiments of the present application, the processing unit includes:

[0061] an analog-to-digital converter, used to convert the analog signal generated by the sensing unit into a digital signal;

[0062] A deserializer is used to receive the digital signal sent by the analog-to-digital converter and adjust the brightness of the backlight source by adjusting the duty cycle of the PWM signal.

[0063] Optionally, in some embodiments of the present application, the sensing unit includes at least one thermistor.

[0064] Optionally, in some embodiments of the present application, the thermistor is a negative temperature coefficient resistor.

[0065] According to a sixth aspect of the present application, a vehicle is also provided, comprising the storage medium or computer program product or electronic device or display device as described above.

[0066] The beneficial effect of the present application is that the problem of damage to the display device due to temperature mismatch is improved by adjusting the brightness of the display device to adapt to temperature changes.

[0067] More specifically, some embodiments of the present application may produce the following specific beneficial effects:

[0068] The brightness adjustment interval of the display device is dynamically adjusted by the temperature rise and fall speed and the difference between the current brightness and the target brightness, so that the brightness change of the display device is more linear and will not change suddenly, thereby improving the user experience.

[0069] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0071] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0072] Figure 1 is a schematic structural diagram of a display device provided in an exemplary embodiment of the present application;

[0073] Figure 2 is a schematic structural diagram of another display device provided in an exemplary embodiment of the present application;

[0074] Figure 3 is a schematic diagram of steps of an optional display device control method provided in an exemplary embodiment of the present application;

[0075] Figure 4 is a schematic diagram of steps of another optional display device control method provided in an exemplary embodiment of the present application;

[0076] Figure 5 is a graph showing the relationship between temperature and brightness provided in an exemplary embodiment of the present application;

[0077] Figure 6 is a schematic structural diagram of an electronic device provided in an exemplary embodiment of the present application;

[0078] Figure 7 An overall structural diagram of a vehicle provided in an exemplary embodiment of the present application.

[0079] Description of reference numerals:

[0080] 1. Vehicle; 10. Display device;

[0081] 100, display panel; 110, backlight source; 120, sensing unit; 130, backlight driving unit; 140, processing unit; 141, analog-to-digital converter; 142, deserializer;

[0082] 200, controller;

[0083] 600, electronic device; 601, processing device; 602, ROM; 603, RAM; 604, bus; 605, I / O interface; 606, input device; 607, output device; 608, storage device; 609, communication device. DETAILED DESCRIPTION

[0084] 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, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0085] According to the first aspect of the present application, referring to Figure 3 and Figure 4, the present application provides a display device control method, comprising the following steps:

[0086] S100 : Acquire temperature-related screen status data of the display device 10 .

[0087] In this step, the screen status data includes: ambient temperature, screen temperature and screen backlight brightness. The screen temperature is the temperature information corresponding to the resistance value of the thermistor in the display device 10, and the screen backlight brightness can be displayed on the display device 10 in the form of 0% to 100%. In addition, the ambient temperature and the screen temperature can also be displayed on the display device 10.

[0088] It should be noted that the screen status data also includes the backlight PWM (Pulse Width Modulation) signal duty cycle, which is used to adjust the screen backlight brightness by adjusting the size of the backlight PWM signal duty cycle. Specifically, the PWM signal is used to output to the backlight drive unit 130 in the display device 10. The backlight drive unit 130 can output a constant current to light up the backlight source 110 of the display device 10. The output current of the backlight drive unit 130 can be adjusted by adjusting the duty cycle of the PWM signal, thereby changing the backlight of the display device 10.

[0089] It should be noted that in some embodiments of the present application, since the display device 10 will only produce a more obvious temperature change after a period of time has passed since it is powered on, the temperature-related screen status data of the display device 10 will not be obtained until the display device 10 is powered on and a preset time has passed, and the temperature-related screen status data of the display device 10 will be read again at regular intervals thereafter.

[0090] In some embodiments, the process of adjusting the brightness of the display device 10 so as to increase or decrease the temperature of the display device 10 is linear, and the adjustment interval can be a preset constant value, or it can be dynamically adjusted according to the speed of temperature rise and fall and the difference between the current brightness and the target.

[0091] The time interval for the next adjustment is defined as a preset interval △t, the slope of the temperature change from the last adjustment to the current adjustment is defined as k, the current brightness is defined as B1, and the target brightness is defined as B2.

[0092] In other embodiments of the present application, the specific value of Δt may also be determined by the following scheme:

[0093] When the screen temperature is greater than or equal to 80° C. and less than or equal to 95° C., the preset interval △t is set to a value of 10s to 60s.

[0094] When the screen temperature is greater than 95° C., the preset interval △t is set between 60s and 300s.

[0095] When the screen temperature is less than 80° C., the preset interval △t is set between 60s and 300s.

[0096] In other implementations of the present application, the specific value of the preset interval Δt may also be determined by the following scheme:

[0097] The preset interval △t=a / k; wherein k is the slope of temperature change, in units of °C / s; and a is a temperature constant.

[0098] The specific value rules of a are as follows:

[0099] When the screen temperature is greater than or equal to 80°C and less than or equal to 95°C, a is 1°C;

[0100] When the screen temperature is less than 80°C or greater than 95°C, the value of a is 5°C;

[0101] It should be noted that when T=80℃~95℃, a=1℃, which means that the temperature is detected and adjusted once every 1℃ change; when T<80℃ or T>95℃, a=5℃, which means that the temperature is detected and adjusted once every 5℃ change; the initial △t can be 10S.

[0102] It should be noted that when the specific value of △t is determined to be less than 10S, the specific value of △t is uniformly taken as 10S; when the specific value of △t is determined to be greater than 5min, the value range of △t is 10S to 5min.

[0103] During this process, the brightness changes will not produce sudden changes, and it will be more delicate and accurate, providing a better user experience.

[0104] S200: Determine whether screen status data related to the temperature of the display device 10 meets a preset condition.

[0105] In this step, the preset condition includes that the screen temperature is greater than or equal to a first temperature threshold, or the screen temperature is less than or equal to a second temperature threshold; wherein the second temperature threshold is less than the first temperature threshold.

[0106] Specifically, the first temperature threshold is a high temperature threshold. When the temperature of the display device 10 is higher than the high temperature threshold, the operating performance of the display device 10 will be affected. The high temperature threshold can be set according to the performance of the display device 10 and user needs. Correspondingly, in some weather conditions, the ambient temperature will also be very low, and the lower temperature will also affect the operating performance of the display device 10. Therefore, a second temperature threshold is set, that is, a low temperature threshold. When the temperature of the display device 10 is lower than the low temperature threshold, the operation of the display device 10 will be affected. The low temperature threshold can also be specifically set according to the performance of the display device 10 and user needs.

[0107] S300: Outputting a control instruction for controlling the screen brightness of the display device 10 according to the screen status data of the display device 10 so that the screen brightness of the display device 10 is adapted to the screen temperature.

[0108] In this step, specifically, the control instruction includes: when the screen temperature is greater than or equal to the first temperature threshold, reducing the current screen backlight brightness to a first preset brightness. When reducing the current screen backlight brightness to the first preset brightness, the change in screen backlight brightness satisfies the following formula:

[0109] Real-time screen backlight brightness percentage = (-0.1×T+9.5)×100%,

[0110] Wherein, T is the real-time display screen temperature.

[0111] It should be noted that, in some embodiments, this formula is only applicable when the screen temperature is between 85°C and 95°C. When the screen temperature is lower than 85°C, the screen brightness remains at 100%; when the screen temperature is higher than 95°C, the screen brightness remains at 0%. More specifically, when the brightness is lower than the preset brightness, there is no need to adjust the screen brightness.

[0112] Specifically, the control instruction also includes: when the screen temperature is less than or equal to the second temperature threshold, increasing the current screen backlight brightness to a second preset brightness. When the current screen backlight brightness is increased to the second preset brightness, the change in the screen backlight brightness satisfies the following formula:

[0113] Real-time screen backlight brightness percentage = (-0.1×T+9.0)×100%,

[0114] Wherein, T is the real-time display screen temperature.

[0115] It should be noted that, in some embodiments, this formula is also only applicable to the screen temperature between 80°C and 90°C. When the screen temperature is lower than 80°C, the screen brightness remains at 100%; when the screen temperature is higher than 90°C, the screen brightness will remain at 0%.

[0116] It should be noted that in the temperature adjustment process of the display device 10 described above, the control instruction also includes: dynamically adjusting the time interval for obtaining the temperature-related screen status data of the display device 10 according to the rising rate of the screen temperature and the difference between the current screen backlight brightness and the first preset brightness, or according to the falling rate of the screen temperature and the difference between the current screen backlight brightness and the second preset brightness. By dynamically adjusting the interval time for adjusting the temperature of the display device 10, the performance of the display device 10 can be further optimized.

[0117] S400: Send an abnormal temperature alarm.

[0118] In this step, specifically, the abnormal temperature alarm prompt is configured as a message displayed on the display panel 100 of the display device 10 and an alarm prompt sound.

[0119] It should be noted that when the temperature of the display device 10 is detected to be greater than or equal to the first temperature threshold or less than or equal to the second temperature threshold, a temperature abnormality alarm prompt will be sent to the user. In some embodiments of the present application, the alarm prompt will only be sent to the user when the temperature abnormality of the display device 10 is detected for the first time after the car is turned on.

[0120] In addition, in some embodiments of the present application, the display device 10 control method further includes:

[0121] S000: When a manual brightness adjustment operation of the display device 10 is detected, the automatic adjustment of the brightness of the display device 10 is stopped, and after the manually adjusted brightness value is maintained for a preset time, the automatic adjustment of the brightness of the display device 10 is restarted.

[0122] In this step, specifically, the manual brightness adjustment operation of the display device 10 includes: adjusting the brightness of the display device 10 through a physical button on the display device 10; and / or adjusting the brightness of the display device 10 through a graphical operation interface of the display device 10. That is, the user can manually adjust the brightness of the display device 10 through the physical button on the display device 10. In addition, the display device 10 also provides a graphical operation interface, and the user can also manually adjust the brightness of the display device 10 through human-computer interaction.

[0123] It should be noted that in the brightness adjustment process of the above steps, manual adjustment will have the highest priority. If the display device 10 detects the behavior of manual adjustment of the brightness, it will immediately stop the ongoing or upcoming automatic adjustment process, and the manually adjusted brightness value will be used as the basis, and the manually adjusted brightness value will be kept unchanged for a period of time. In some embodiments, the above automatic adjustment process will be performed again after 15 minutes.

[0124] Reference Figure 5As shown, in the above steps, the present application also defines the relationship between the temperature and the brightness change of the display device 10 in the two cases of heating and cooling. In the figure, the display brightness of the display device 10 corresponding to the 0% brightness bar is 120cd / m 2 . In some examples, a thermistor is used to detect the temperature of the display device 10, specifically, an NTC, which is a negative temperature coefficient resistor. The resistance value decreases as the temperature increases. The detection temperature can be accurate to 1°C, and the accuracy of the corresponding brightness bar is 10%. On this basis, when the detection temperature of the display device 10 exceeds 85°C, the brightness is adjusted. After exceeding 95°C, the minimum brightness bar is kept at 0% unchanged, and it changes linearly from 85°C to 95°C; the adjustment is started when the temperature drops to 90°C, and the maximum brightness bar is kept at 100% unchanged after dropping to 80°C, and it changes linearly from 80°C to 90°C.

[0125] When the temperature of the display device control method of the present application exceeds the maximum temperature threshold, the backlight is not turned off directly, and the appropriate brightness is still retained, which can reduce the impact on user use; at the same time, the brightness of heating and cooling can be adjusted linearly, and the adjustment interval can be specifically set, which is more delicate and accurate, there is no sudden brightness change, and the user experience is better.

[0126] According to the second aspect of the present application, the embodiment of the present application further provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the above-mentioned display device control method are implemented. The non-transitory computer-readable storage medium has all the beneficial effects of the above-mentioned display device control method, and the present application will not repeat them here.

[0127] According to the third aspect of the present application, an embodiment of the present application also provides a computer program product, including a computer program. When the computer program is executed by a processor, it implements the above-mentioned display device control method and has all the beneficial effects of the above-mentioned display device control method. This application will not go into details here.

[0128] According to the fourth aspect of the present application, an embodiment of the present application further provides an electronic device, comprising: a memory and a processor, wherein a computer program is stored in the memory; and the processor is used to execute the computer program in the memory to implement the steps of the above-mentioned display device control method. The electronic device has all the beneficial effects of the above-mentioned display device control method, and the present application will not repeat them here.

[0129] Please refer to Figure 6, the electronic device 600 may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 601, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 602 or a program loaded from a storage device 608 to a random access memory (RAM) 603. In the RAM 603, various programs and data required for the operation of the electronic device 600 are also stored. The processing device 601, the ROM 602, and the RAM 603 are connected to each other via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0130] Typically, the following devices may be connected to the I / O interface 605: an input device 606 including, for example, a touch screen, a touch pad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 607 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 608 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 609. The communication device 609 may allow the electronic device 600 to communicate with other devices wirelessly or by wire to exchange data. Although Figure 6 The electronic device 600 is shown with various devices, but it should be understood that it is not required to implement or possess all the devices shown. More or fewer devices may be implemented or possessed instead. Figure 6 Each block shown in the figure may represent one device, or may represent multiple devices as required.

[0131] In particular, according to some embodiments of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, some embodiments of the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In some such embodiments, the computer program can be downloaded and installed from the network through the communication device 609, or installed from the storage device 608, or installed from the ROM 602. When the computer program is executed by the processing device 601, the above-mentioned functions defined in the method of some embodiments of the present application are executed.

[0132] It should be noted that the computer-readable medium in some embodiments of the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, an electrical, magnetic, optical, electromagnetic, infrared or semiconductor system, device or device, or any combination of the above, which is not specifically limited in the present application. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0133] In some embodiments of the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, apparatus, or device. In some embodiments of the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in combination with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0134] In some embodiments, the client and the server may communicate using any currently known or future developed network protocol such as HTTP (Hyper Text Transfer Protocol), and may be interconnected with any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), an internet (e.g., the Internet), and a peer-to-peer network (e.g., an adhoc peer-to-peer network), as well as any currently known or future developed network.

[0135] The computer-readable medium may be included in the electronic device, or may exist independently without being installed in the electronic device. The computer-readable medium carries one or more programs. When the one or more programs are executed by the electronic device, the electronic device: outputs a control instruction for controlling the screen brightness of the display device 10 according to the screen status data of the display device 10 so that the screen brightness of the display device 10 is adapted to the screen temperature.

[0136] Computer program code for performing the operations of some embodiments of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0137] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. In this regard, each box in the flowchart or block diagram may represent a module, a program segment or a portion of a code, which contains one or more executable instructions for implementing a specified logical function.

[0138] It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures.

[0139] For example, two boxes shown in succession may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and combinations of boxes in the block diagram and / or flow chart, can be implemented by a dedicated hardware-based system that performs the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0140] The units described in some embodiments of the present application may be implemented by software or by hardware.

[0141] The functions described above herein may be performed at least in part by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), and the like.

[0142] Reference Figure 1 and Figure 2 According to a fifth aspect of the present application, a display device 10 is provided, which includes a display panel 100 and a controller 200.

[0143] The display panel 100 includes: a backlight source 110, a sensing unit 120, a backlight driving unit 130, and a processing unit 140. Specifically, the sensing unit 120 is at least used to measure the temperature of the display panel 100, the backlight driving unit 130 is used to provide power to the backlight source 110, and the processing unit 140 is used to control the output current of the backlight driving unit 130 according to the temperature of the display panel 100 measured by the sensing unit 120 to adjust the brightness of the backlight source 110. In some specific examples, the sensing unit 120 includes at least one thermistor, specifically a negative temperature coefficient resistor, such as NTC.

[0144] In some embodiments of the present application, the processing unit 140 controls the output current of the backlight driving unit 130 by outputting a PWM signal. Specifically, the processing unit 140 can be an MCU or a timing controller 200, which controls the power on and off timing of the display device 10 power supply and signal, and adjusts the brightness of the backlight source 110 by adjusting the duty cycle of the PWM signal. When the processing unit 140 is an MCU, in some usage scenarios, such as in a vehicle 1, the controller 200 can be connected to the MCU via a bus, which consists of two signal lines CAN_H / CAN_L.

[0145] In other embodiments of the present application, the processing unit 140 may further include an analog-to-digital converter 141 and a deserializer 142, wherein the analog-to-digital converter 141 is used to convert the analog signal generated by the sensing unit into a digital signal, and the deserializer 142 is used to receive the digital signal sent by the analog-to-digital converter 141 and adjust the brightness of the backlight source 110 by adjusting the duty cycle of the PWM signal. In this embodiment, the analog-to-digital converter 141 can be connected to the controller 200 via GNML. It should be noted that GNML is a high-speed serial interface that can transmit video, audio and control signals.

[0146] In addition, the controller 200 is used to receive temperature information from the processing unit 140 and issue an alarm when the temperature is abnormal; and / or, to stop the automatic temperature control of the processing unit 140 and send a manual temperature control signal to the processing unit 140; the controller 200 is also used to restart the automatic temperature control of the processing unit 140 after the processing unit 140 receives the manual temperature control signal for a preset time. It should be noted that the controller 200 is also responsible for the output of audio and video streams and the control of peripheral assemblies such as the screen end.

[0147] The display device 10 of the present application adds NTC temperature detection at the screen display end and is connected to the processing unit 140; when the screen temperature rises, the screen NTC impedance decreases, and the processing unit 140 collects the corresponding NTC resistance to obtain the corresponding temperature information. When it is determined that the high temperature threshold is exceeded, the backlight drive is actively controlled to reduce the backlight brightness; when the screen temperature drops to the corresponding value, the processing unit 140 actively controls the backlight drive to increase the backlight brightness, thereby protecting the screen and avoiding high temperature damage.

[0148] According to the sixth aspect of the present application, an embodiment of the present application also provides a vehicle 1 for implementing the above-mentioned display device 10 control method. The vehicle 1 includes the above-mentioned electronic device or the above-mentioned display device 10, and has all the beneficial effects of the above-mentioned electronic device or display device 10, which will not be repeated in this application.

[0149] The vehicle 1 may be a fuel vehicle, a plug-in hybrid vehicle, a new energy vehicle, etc., and this application does not make any specific limitation on this.

[0150] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0151] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0152] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0153] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application has been described in examples with different focuses on the descriptions of various embodiments, for parts not described in detail in a certain embodiment, reference can be made to the relevant embodiments of other embodiments. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are within the scope of the technical solution of the present application.

Claims

1. A display device control method, characterized in that: include: After waiting for a preset time, obtaining screen status data related to the temperature of the display device; Determining whether screen status data related to the temperature of the display device meets a preset condition; Outputting a control instruction for controlling the screen brightness of the display device according to the screen status data of the display device so that the screen brightness of the display device is adapted to the screen temperature; The control instruction includes dynamically adjusting the time interval for acquiring the temperature-related screen status data of the display device; The preset conditions include: the screen temperature is greater than or equal to a first temperature threshold; The control instruction includes: when the screen temperature is greater than or equal to a first temperature threshold, reducing the current screen backlight brightness to a first preset brightness; The control instruction further includes: dynamically adjusting the time interval for acquiring the temperature-related screen status data of the display device according to the rising rate of the screen temperature and the difference between the current screen backlight brightness and the first preset brightness; The preset condition also includes: the screen temperature is less than or equal to a second temperature threshold, and the second temperature threshold is less than the first temperature threshold; The control instruction further includes: when the screen temperature is less than or equal to a second temperature threshold, increasing the current screen backlight brightness to a second preset brightness; The control instruction also includes: dynamically adjusting the time interval for acquiring the temperature-related screen status data of the display device according to the rate of decrease of the screen temperature and the difference between the current screen backlight brightness and the second preset brightness.

2. The display device control method according to claim 1, characterized in that: Outputting a control instruction for controlling the screen brightness of the display device according to the screen status data of the display device so that the screen brightness of the display device is adapted to the screen temperature, comprising: According to the screen status data, a screen brightness corresponding to the screen status data is queried or generated.

3. The display device control method according to claim 2, characterized in that: The screen status data includes: ambient temperature, screen temperature and screen backlight brightness.

4. The display device control method according to claim 3, characterized in that: The screen temperature is the temperature information corresponding to the resistance value of the thermistor in the display device.

5. The display device control method according to claim 1, characterized in that: The current screen backlight brightness is reduced to the first preset brightness, and the change of the screen backlight brightness satisfies the following formula: T<85℃, real-time screen backlight brightness percentage = 100%; 85℃≤T≤95℃, real-time screen backlight brightness percentage = (-0.1×T+9.5)×100%; T>95℃, real-time screen backlight brightness percentage = 0%; Wherein, T is the real-time display screen temperature.

6. The display device control method according to claim 1, characterized in that: The current screen backlight brightness is increased to the second preset brightness, and the change of the screen backlight brightness satisfies the following formula: T<80℃, real-time screen backlight brightness percentage = 100%; 80℃≤T≤90℃, real-time screen backlight brightness percentage = (-0.1×T+9.0)×100%; T>90℃, real-time screen backlight brightness percentage = 0%; Wherein, T is the real-time display screen temperature.

7. The display device control method according to any one of claims 1 to 6, characterized in that: The screen status data also includes a backlight PWM signal duty cycle, which is used to adjust the screen backlight brightness by adjusting the size of the backlight PWM signal duty cycle.

8. The display device control method according to any one of claims 1 to 6, characterized in that: After outputting the control instruction for controlling the brightness of the display device, the display device control method further includes: Sending a temperature abnormality alarm prompt, wherein the temperature abnormality alarm prompt is configured as a message displayed on a display panel of a display device and an alarm prompt sound.

9. The display device control method according to any one of claims 1 to 6, characterized in that: The display device control method further includes: When a manual brightness adjustment operation of the display device is detected, the automatic adjustment of the brightness of the display device is stopped, and after the manually adjusted brightness value is maintained for a preset time, the automatic adjustment of the brightness of the display device is restarted.

10. The display device control method according to claim 9, characterized in that: The artificial display device brightness adjustment operation includes: Adjust the brightness of the display device by using the physical buttons on the display device; And / or, adjusting the brightness of the display device through a graphical operating interface of the display device.

11. A storage medium having a computer program stored thereon, characterized in that: When the computer program is processed and executed, the display device control method according to any one of claims 1 to 10 is implemented.

12. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the display device control method according to any one of claims 1 to 10 is implemented.

13. An electronic device, characterized in that: The electronic device comprises: a memory storing a computer program; A processor, configured to execute the computer program in the memory to implement the display device control method according to any one of claims 1 to 10.

14. A display device, characterized in that: Used to implement the display device control method described in any one of claims 1 to 10.

15. The display device according to claim 14, characterized in that: include: A display panel, the display panel comprising: Backlight source; A sensing unit, the sensing unit being used at least to measure a temperature of the display panel; A backlight driving unit, used for providing power to the backlight source; A processing unit is used to control the output current of the backlight driving unit according to the temperature of the display panel measured by the sensing unit to adjust the brightness of the backlight source.

16. The display device according to claim 15, characterized in that: The display device further includes: A control chip is used to receive temperature information from the processing unit and issue an alarm when the temperature is abnormal; and / or, for stopping automatic temperature control of the processing unit and sending a manual temperature control signal to the processing unit; The control chip is also used to restart the automatic temperature control of the processing unit after the processing unit receives the manual temperature control signal for a preset time period.

17. The display device according to claim 16, characterized in that: The processing unit controls the output current of the backlight driving unit by outputting a PWM signal.

18. The display device according to claim 17, characterized in that: The processing unit is an MCU, which is used to control the power on and off timing of the display device power supply and signal, and adjust the brightness of the backlight source by adjusting the duty cycle of the PWM signal.

19. The display device according to claim 17, characterized in that: The processing unit comprises: an analog-to-digital converter, used to convert the analog signal generated by the sensing unit into a digital signal; A deserializer is used to receive the digital signal sent by the analog-to-digital converter and adjust the brightness of the backlight source by adjusting the duty cycle of the PWM signal.

20. The display device according to claim 15, characterized in that The sensing unit includes at least one thermistor.

21. The display device according to claim 20, characterized in that: The thermistor is a negative temperature coefficient resistor.

22. A vehicle, characterized in that: The invention comprises the storage medium according to claim 11, the computer program product according to claim 12, the electronic device according to claim 13, or the display device according to any one of claims 14 to 21.

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