Method and apparatus for display backlight control, control panel, storage medium

Abstract

The application relates to the technical field of display screens, and discloses a method for display screen backlight control, which comprises the following steps: obtaining a first temperature difference between a first temperature of a display screen and a first ambient temperature; determining a first temperature difference threshold according to the first ambient temperature; and adjusting the screen brightness of the display screen according to the first temperature difference and the first temperature difference threshold. The screen brightness of the display screen is adjusted by the first temperature difference and the first temperature difference threshold, so that the inaccuracy of single working temperature threshold determination is avoided, and the display screen will not run unstably due to the excessively high temperature rise of the display screen caused by different ambient temperatures. Therefore, the continuous running stability of the display screen is improved. The application further discloses a device for display screen backlight control, a control panel and a storage medium.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display screens, for example to a method and device for display screen backlight control, a control panel and a storage medium. BACKGROUND

[0002] At present, various intelligent household appliances, electronic products and the like have display screens. In the case of continuous operation or excessively high display screen display brightness, the working temperature of the display screen is continuously increased, and long-term excessively high temperature can affect system response speed, content display effect and operation experience, and also affect the service life of the display screen.

[0003] A display screen brightness adjustment method is disclosed in the related art, comprising: obtaining the working temperature of the display screen, determining whether the working temperature exceeds the display screen working temperature threshold value; if so, calculating the backlight brightness based on the pre-generated configuration file and the working temperature; and adjusting the display screen brightness based on the backlight brightness.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] Although the technology can adjust the screen brightness of the display screen according to the working temperature of the display screen, the display screen working temperature threshold value range in the technology is a fixed working temperature range of the display screen. In the case of exceeding the working temperature range, the display screen is often in an unstable state. Moreover, in the case of different environmental temperatures, the heat dissipation function of the display screen is also different. The display screen brightness adjustment according to the same working temperature threshold value cannot keep the display screen continuously stable. Therefore, the continuous operation stability of the display screen in the related art is poor.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not a general review, nor is it intended to determine key / important components or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a method and device for display screen backlight control, a control panel and a storage medium, which can improve the continuous operation stability of the display screen.

[0009] In some embodiments, the method for display screen backlight control comprises: obtaining a first temperature difference between a first temperature of a display screen and a first ambient temperature; determining a first temperature difference threshold according to the first ambient temperature; and adjusting a screen brightness of the display screen according to the first temperature difference and the first temperature difference threshold.

[0010] Optionally, the determining of the first temperature difference threshold according to the first ambient temperature comprises: determining the first temperature difference threshold corresponding to the first ambient temperature according to a mapping relationship between the ambient temperature and the temperature difference threshold.

[0011] Optionally, the adjusting of the screen brightness of the display screen according to the first temperature difference and the first temperature difference threshold comprises: adjusting the screen brightness of the display screen according to an ambient light intensity in a case where the first temperature difference is greater than the first temperature difference threshold.

[0012] Optionally, the adjusting of the screen brightness of the display screen according to the ambient light intensity comprises: obtaining a current ambient light intensity; determining a first screen brightness corresponding to the current ambient light intensity according to a mapping relationship between the ambient light intensity and the screen brightness; and adjusting the screen brightness of the display screen according to the first screen brightness.

[0013] Optionally, the adjusting of the screen brightness of the display screen according to the first screen brightness comprises: obtaining a first current screen brightness of the display screen; adjusting the screen brightness of the display screen to the first screen brightness in a case where the first screen brightness is less than the first current screen brightness; and reducing the screen brightness of the display screen by a preset brightness threshold in a case where the first screen brightness is greater than or equal to the first current screen brightness.

[0014] Optionally, after the adjusting of the screen brightness of the display screen, the method further comprises: obtaining a plurality of second temperature differences between a second temperature of the display screen and a plurality of second ambient temperatures; determining a second temperature difference threshold corresponding to each second ambient temperature; obtaining a difference value change of the second temperature difference and the second temperature difference threshold; determining a second screen brightness according to the difference value change; and adjusting the screen brightness of the display screen to the second screen brightness.

[0015] Optionally, the determining of the second screen brightness according to the difference value change comprises: determining a difference value change rate of the second temperature difference and the second temperature difference threshold, a current ambient temperature and a second current screen brightness of the display screen in a case where the difference value change is a positive value and presents an upward trend; and determining the second screen brightness according to the difference value change rate, the current ambient temperature and the second current screen brightness.

[0016] Optionally, the method further comprises: in a case that the first temperature difference is greater than the first temperature difference threshold and there is no user operation, reducing a standby waiting time length of the display screen; in a case that the first temperature difference is greater than the first temperature difference threshold and there is user operation, performing information prompting to adjust the screen brightness of the display screen according to a screen brightness instruction sent by the user based on the information prompting.

[0017] In some embodiments, an apparatus for display screen backlight control comprises a processor and a memory storing program instructions, the processor being configured to execute the method for display screen backlight control described above when running the program instructions.

[0018] In some embodiments, the control panel comprises a control panel body; and the apparatus for display screen backlight control described above is mounted to the control panel body.

[0019] In some embodiments, a storage medium stores program instructions, the program instructions being executed to perform the method for display screen backlight control described above.

[0020] The method and apparatus for display screen backlight control, the control panel, and the storage medium provided by the embodiments of the present disclosure can achieve the following technical effects:

[0021] The level of ambient temperature directly affects the heat dissipation effect of the display screen, and the higher the ambient temperature, the slower the display screen dissipates heat. In the same working state, the higher the ambient temperature, the faster the temperature of the display screen rises. The temperature change of the display screen can be determined from the temperature difference between the temperature of the display screen and the current ambient temperature, and different temperature difference thresholds are set for different ambient temperatures. In this way, adjusting the screen brightness of the display screen by the first temperature difference and the first temperature difference threshold avoids the inaccuracy of a single working temperature threshold determination, and the display screen does not run unstably due to the different ambient temperatures causing the display screen to rise too high. Thus, the continuous running stability of the display screen is improved.

[0022] The foregoing general description and the following description are only exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute a limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute a proportional limitation, and wherein:

[0024] Figure 1 is a schematic diagram of one method for display screen backlight control provided by the embodiments of the present disclosure;

[0025] Figure 2 is a schematic diagram of another method for display screen backlight control provided by the embodiments of the present disclosure;

[0026] Figure 3 is another schematic diagram of a method for display screen backlight control provided by an embodiment of the present disclosure;

[0027] Figure 4 is another schematic diagram of a method for display screen backlight control provided by an embodiment of the present disclosure;

[0028] Figure 5 is another schematic diagram of a method for display screen backlight control provided by an embodiment of the present disclosure;

[0029] Figure 6 is a schematic diagram of an apparatus for display screen backlight control provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0031] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0032] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0033] Unless otherwise specified, the term "a plurality of" means two or more.

[0034] In the embodiments of the present disclosure, the character " / " represents that the front and rear objects are in an "or" relationship. For example, A / B means A or B.

[0035] The term "and / or" is a description of the association relationship of the objects, which means that there can be three relationships. For example, A and / or B means that there are three relationships of A or B, or A and B.

[0036] The term "corresponding" can refer to an association relationship or a binding relationship. A and B correspond to each other means that A and B are in an association relationship or a binding relationship.

[0037] In addition, the term "set" should be understood broadly.

[0038] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0039] The present disclosure provides an electronic device, comprising a display screen, a first temperature sensor, a second temperature sensor and a light sensor. The display screen is used to display operation information, image information, etc. The first temperature sensor is used to detect the temperature of the display screen. The second temperature sensor is used to detect the ambient temperature of the display screen. The light sensor is used to detect the ambient light intensity.

[0040] In combination with the above-mentioned electronic device, the present disclosure provides a method for display screen backlight control. As shown in the method comprises: Figure 1

[0041] S101, the electronic device acquires the first temperature difference between the first temperature of the display screen and the first ambient temperature.

[0042] The first temperature is the current temperature of the detected display screen, the first ambient temperature is the temperature of the environment where the display screen is located corresponding to the current temperature of the display screen, and the first temperature difference is obtained by subtracting the first ambient temperature from the first temperature of the display screen.

[0043] S102, the electronic device determines the first temperature difference threshold according to the first ambient temperature.

[0044] S103, the electronic device adjusts the screen brightness of the display screen according to the first temperature difference and the first temperature difference threshold.

[0045] ​In the embodiments of the present disclosure, the high and low of the ambient temperature directly affects the heat dissipation effect of the display screen, the higher the ambient temperature, the slower the display screen dissipates heat. In the same working state, the higher the ambient temperature, the faster the temperature of the display screen rises, and the smaller the temperature difference threshold needs to be set. The temperature change of the display screen can be judged from the temperature difference between the temperature of the display screen and the current ambient temperature, and different temperature difference thresholds are set for different ambient temperatures. In this way, adjusting the screen brightness of the display screen through the first temperature difference and the first temperature difference threshold avoids the inaccuracy of single working temperature threshold determination, and the display screen does not run unstable due to the over-high temperature of the display screen caused by different ambient temperatures. Therefore, the continuous running stability of the display screen is improved. At the same time, keeping the temperature of the display screen at a lower temperature is beneficial to the dissipation of heat of the electronic device system, thereby improving the running performance of the system.

[0046] Optionally, the electronic device determines the first temperature difference threshold according to the first ambient temperature, comprising: the electronic device determines the first temperature difference threshold corresponding to the first ambient temperature according to the mapping relationship between the ambient temperature and the temperature difference threshold. Wherein, the ambient temperature and the temperature difference threshold are negatively correlated. The mapping relationship between the ambient temperature and the temperature difference threshold is a one-to-one correspondence relationship between the ambient temperature and the temperature difference threshold stored in the electronic device. For example, the temperature difference threshold corresponding to T 环 ≤ 10℃ is 20℃, 10℃ < T 环 ≤ 20℃ is 17℃, 20℃ < T 环 ≤ 30℃ is 15℃, T 环 > 30℃ is 13℃, wherein T 环 is the ambient temperature. The corresponding relationship between the specific ambient temperature and the temperature difference threshold can be determined according to the relationship between the temperature change, running stability and the like of the display screen in the actual use process and the ambient temperature. For example, the temperature of the display screen can be continuously raised by setting the ambient temperature, operating and setting the electronic device under different ambient temperatures, and the operation and running of the display screen are recorded. When the operation and running of the display screen appear unsmooth or abnormal, the temperature of the display screen is recorded and the difference value with the ambient temperature is calculated, which can be used as the temperature difference threshold under the ambient temperature. Of course, the difference value can also be reduced by a certain amplitude as the temperature difference threshold under the ambient temperature, so that the influence of the temperature difference threshold on the running stability of the display screen during the adjustment of the brightness of the display screen can be avoided. According to the actual situation, the ambient temperature can be divided into intervals to determine the corresponding relationship. In this way, the best temperature difference threshold of the display screen can be determined according to the ambient temperature of the display screen, and the screen brightness of the display screen is adjusted according to the first temperature difference and the first temperature difference threshold. Therefore, the phenomenon that the display screen runs unstable due to the over-high temperature of the display screen during the running of the display screen is reduced, and the continuous running stability of the display screen is improved.

[0047] Optionally, the electronic device adjusts the screen brightness of the display screen according to the first temperature difference and the first temperature difference threshold, including: in a case where the first temperature difference is greater than the first temperature difference threshold, the electronic device adjusts the screen brightness of the display screen according to the ambient light intensity. In a case where the first temperature difference is less than or equal to the first temperature difference threshold, the current screen brightness is maintained. The ambient light intensity in which the electronic device is located can be detected by the light sensor. In this way, adjusting the screen brightness of the display screen according to the ambient light intensity can make the screen brightness of the display screen more matched with the ambient light intensity. Thus, the user can watch more comfortably, and the user experience is better.

[0048] Optionally, the electronic device adjusts the screen brightness of the display screen according to the first temperature difference and the first temperature difference threshold, including: in a case where the first temperature difference is greater than the first temperature difference threshold, and the duration is greater than or equal to the preset duration, the electronic device adjusts the screen brightness of the display screen according to the ambient light intensity. In a case where the first temperature difference is less than or equal to the first temperature difference threshold, the current screen brightness is maintained. In this way, by judging the duration, the misjudgment caused by accidental detection errors can be avoided. Thus, the accuracy of the judgment can be improved.

[0049] Optionally, the electronic device adjusts the screen brightness of the display screen according to the ambient light intensity, including: the electronic device obtains the current ambient light intensity. The electronic device determines the first screen brightness corresponding to the current ambient light intensity according to the mapping relationship between the ambient light intensity and the screen brightness. The electronic device adjusts the screen brightness of the display screen according to the first screen brightness. The mapping relationship between the ambient light intensity and the screen brightness is a one-to-one correspondence relationship between the ambient light intensity and the screen brightness stored in the electronic device. Different screen brightnesses have different comfort levels for users to watch under different ambient light intensities. For example, different ranges of ambient light intensities can be set to correspond to different screen brightnesses. In this way, adjusting the corresponding different screen brightness according to different ambient light intensities can make the screen brightness of the display screen more matched with the ambient light intensity. Thus, the user can watch more comfortably, and the user experience is better.

[0050] In combination with Figure 2 The embodiment of the present disclosure provides another method for display screen backlight control, including:

[0051] S201, the electronic device obtains a first temperature difference between a first temperature of a display screen and a first ambient temperature.

[0052] S202, the electronic device determines a first temperature difference threshold according to the first ambient temperature.

[0053] S203, in a case where the first temperature difference is greater than the first temperature difference threshold, the electronic device obtains a current ambient light intensity.

[0054] S204, the electronic device determines a first screen brightness corresponding to the current ambient light intensity according to a mapping relationship between ambient light intensity and screen brightness.

[0055] S205, the electronic device adjusts the screen brightness of the display screen according to the first screen brightness.

[0056] In the embodiments of the present disclosure, different screen brightnesses have different comfort levels for users to watch under different ambient light intensities. For example, different ranges of ambient light intensity can be set to correspond to different screen brightnesses. In this way, adjusting different screen brightnesses corresponding to different ambient light intensities can make the screen brightness of the display screen more matched with the ambient light intensity. Thus, the user's watching is more comfortable, and the user experience is better.

[0057] Optionally, the electronic device adjusting the screen brightness of the display screen according to the first screen brightness comprises: the electronic device obtaining a first current screen brightness of the display screen. In a case where the first screen brightness is less than the first current screen brightness, the electronic device adjusts the screen brightness of the display screen to the first screen brightness. In a case where the first screen brightness is greater than or equal to the first current screen brightness, the electronic device reduces the screen brightness of the display screen by a preset brightness threshold. In this way, since the screen brightness of the display screen has a greater impact on the temperature of the display screen, by reducing the screen brightness, the temperature of the display screen can be reduced. Thus, the phenomenon that the display screen runs unstably due to the temperature of the display screen being too high during running is reduced, and the stability of the continuous running of the display screen is improved. For example, the screen brightness range of the display is 0-100, the current screen brightness is 80, the ambient light intensity is 100lx, and it is assumed that according to the mapping relationship between ambient light intensity and screen brightness, the screen brightness corresponding to this ambient light intensity is 60, then 60 is determined as the first screen brightness, and the screen brightness of the display screen is adjusted to 60.

[0058] Optionally, the preset brightness threshold can be determined according to a corresponding relationship between a degree that the first temperature difference is greater than the first temperature difference threshold and the preset brightness threshold. The greater the degree that the first temperature difference is greater than the first temperature difference threshold, the greater the preset brightness threshold. The preset brightness threshold can also be determined according to a corresponding relationship between the temperature rising rate of the display screen and the preset brightness threshold. The faster the temperature rising rate of the display screen, the greater the preset brightness threshold. In this way, different preset brightness thresholds are determined according to the actual value of the temperature of the display screen, which can keep the screen brightness of the display screen at an appropriate brightness. Thus, the screen brightness of the display screen is prevented from being too low, which affects the user's experience.

[0059] Optionally, after the electronic device adjusts the screen brightness of the display screen, the method further includes: the electronic device obtaining a plurality of second temperature differences between a second temperature of the display screen and a second ambient temperature. The electronic device respectively determines a second temperature difference threshold corresponding to each second ambient temperature. The electronic device obtains a difference value change of the second temperature difference and the second temperature difference threshold. The electronic device determines a second screen brightness according to the difference value change. The electronic device adjusts the screen brightness of the display screen to the second screen brightness. The second temperature is a current temperature of the display screen detected at a certain time interval, the second ambient temperature is a temperature of an environment in which the display screen is located corresponding to the current temperature of the display screen, and the difference value of the second temperature difference and the second temperature difference threshold is the difference value of the second temperature difference minus the second temperature difference threshold. After the screen brightness of the display screen is adjusted, a plurality of second temperature differences corresponding to the second temperature and the second ambient temperature of the display screen can be obtained by detecting the second temperature and the second ambient temperature of the display screen multiple times, and the second temperature difference threshold corresponding to each ambient temperature can be determined through the mapping relationship between the ambient temperature and the temperature difference threshold. In this way, the difference value change of the second temperature difference and the second temperature difference threshold can be obtained by calculating the difference value of each second temperature difference and the corresponding second temperature difference threshold. Thus, the actual effect after the screen brightness is adjusted can be determined according to the change of the difference value. Further, the screen brightness of the display screen can be further adjusted according to the actual effect, so as to avoid the continuous rise of the temperature of the display screen.

[0060] In combination Figure 3 As shown in the accompanying drawings, the embodiments of the present disclosure provide another method for display screen backlight control, which comprises:

[0061] S301, the electronic device obtains a first temperature difference between a first temperature of the display screen and a first ambient temperature.

[0062] S302, the electronic device determines a first temperature difference threshold according to the first ambient temperature.

[0063] S303, in the case that the first temperature difference is greater than the first temperature difference threshold, the electronic device obtains a current ambient light intensity.

[0064] S304, the electronic device determines a first screen brightness corresponding to the current ambient light intensity according to a mapping relationship between the ambient light intensity and the screen brightness.

[0065] S305, the electronic device adjusts the screen brightness of the display screen according to the first screen brightness.

[0066] S306, the electronic device obtains a plurality of second temperature differences between a second temperature of the display screen and a second ambient temperature.

[0067] S307, the electronic device respectively determines a second temperature difference threshold corresponding to each second ambient temperature.

[0068] S308, the electronic device obtains a difference value change condition of the second temperature difference and the second temperature difference threshold.

[0069] S309, the electronic device determines the second screen brightness according to the difference value change condition.

[0070] S310, the electronic device adjusts the screen brightness of the display screen to the second screen brightness.

[0071] In the embodiments of the present disclosure, after the screen brightness of the display screen is adjusted, a plurality of second temperature differences corresponding to the plurality of times of detecting the temperature of the display screen and the ambient temperature can be obtained, and the second temperature difference threshold corresponding to each ambient temperature can be determined through the mapping relationship between the ambient temperature and the temperature difference threshold. In this way, the difference value change condition of the second temperature difference and the second temperature difference threshold can be obtained by calculating the difference value of each second temperature difference and the corresponding second temperature difference threshold. Thus, the actual effect after the screen brightness is adjusted can be determined according to the change condition of the difference value. Further, the screen brightness of the display screen can be further adjusted according to the actual effect, so as to avoid the continuous rise of the temperature of the display screen.

[0072] Optionally, the electronic device determines the second screen brightness according to the change of the difference value, including: in the case that the difference value is positive and shows an upward trend, the electronic device determines a change rate of the difference value between the second temperature difference and the second temperature difference threshold, the current ambient temperature and the second current screen brightness of the display screen. The electronic device determines the second screen brightness according to the change rate of the difference value, the current ambient temperature and the second current screen brightness. The change rate of the difference value between the second temperature difference and the second temperature difference threshold can be calculated by the change value of the difference value divided by time. The electronic device determines the second screen brightness according to the change rate of the difference value, the current ambient temperature and the second current screen brightness, including: the electronic device determines the second screen brightness according to the mapping relationship between the change rate of the difference value, the ambient temperature and the screen brightness. Wherein, the change rate of the difference value is negatively correlated with the screen brightness. In the case that the difference value is less than or equal to zero, or the difference value shows a downward trend, the second current screen brightness is maintained. The mapping relationship between the change rate of the difference value, the ambient temperature and the screen brightness is a one-to-one correspondence relationship between the change rate of the difference value, the ambient temperature and the screen brightness stored in the electronic device. The change rate of the difference value can be calculated by the change of the difference value within a preset time period. Through the preset corresponding relationship, in the case that the ambient temperature and the change rate of the difference value are known, the screen brightness that can prevent the temperature of the display screen from continuously rising under the condition can be determined. Due to the use of air conditioners and other equipment or changes in the weather, the ambient temperature may change at any time, so the temperature difference corresponding to the ambient temperature and the temperature difference threshold may also change. By continuously detecting the temperature difference between the temperature of the display screen and the current ambient temperature, the change of the difference value between the second temperature difference and the second temperature difference threshold is determined. If the difference value is positive and shows an upward trend, it means that the temperature of the display screen is too high and the screen brightness will still cause the temperature of the display screen to continuously rise. In this way, according to the corresponding relationship between the change rate of the difference value, the ambient temperature and the screen brightness, an appropriate screen brightness can be determined. Thus, the temperature of the display screen is prevented from continuously rising, and the running stability of the display screen is ensured.

[0073] Optionally, the method further comprises: in a case where the first temperature difference is greater than the first temperature difference threshold and there is no user operation, the electronic device reduces a standby waiting time length of the display screen. In a case where the first temperature difference is greater than the first temperature difference threshold and there is user operation, the electronic device performs information prompting to adjust the screen brightness of the display screen according to a screen brightness instruction sent by the user based on the information prompting. The information prompting can make the user know that the current temperature of the display screen is too high, and prompt the user to adjust the ambient light intensity to a comfortable viewing level according to the adjusted screen brightness. The information prompting includes one or more of voice prompting, alarm prompting, or displaying related text prompts. In this way, in a case where the first temperature difference is greater than the first temperature difference threshold and there is no user operation, the standby waiting time length of the electronic device is reduced, so that the display screen of the electronic device can enter standby as soon as possible, and the temperature of the display screen is reduced. In a case where the first temperature difference is greater than the first temperature difference threshold and there is user operation, the electronic device prompts the user with information, and the user adjusts the ambient light intensity to a comfortable viewing level according to the adjusted screen brightness, which can ensure stable operation of the display screen and better user operation and viewing comfort. Thus, the user's operation experience is improved.

[0074] In combination Figure 4 As shown in the drawings, the embodiments of the present disclosure provide another method for display screen backlight control, comprising:

[0075] S401, the electronic device obtains a first temperature difference between a first temperature of a display screen and a first ambient temperature.

[0076] S402, the electronic device determines a first temperature difference threshold according to the first ambient temperature.

[0077] S403, the electronic device adjusts the screen brightness of the display screen according to the first temperature difference and the first temperature difference threshold.

[0078] S404, in a case where the first temperature difference is greater than the first temperature difference threshold and there is no user operation, the electronic device reduces a standby waiting time length of the display screen.

[0079] S405, in a case where the first temperature difference is greater than the first temperature difference threshold and there is user operation, the electronic device performs information prompting to adjust the screen brightness of the display screen according to a screen brightness instruction sent by the user based on the information prompting.

[0080] In the embodiments of the present disclosure, in the case that the first temperature difference is greater than the first temperature difference threshold and there is no user operation, the standby waiting time of the electronic device is reduced, so that the display screen of the electronic device can enter standby as soon as possible, and the temperature of the display screen is reduced. In the case that the first temperature difference is greater than the first temperature difference threshold and there is user operation, the electronic device prompts the user with information, and the user can adjust the ambient light intensity to a comfortable viewing level according to the adjusted screen brightness, so that the user's operation and viewing comfort are better in the case of ensuring stable operation of the display screen. Therefore, the user's operation experience is improved.

[0081] Optionally, the electronic device further comprises a heat dissipation fan. In the case that the difference between the first temperature difference and the first temperature difference threshold is greater than or equal to the first difference threshold, the electronic device starts the heat dissipation fan. The first difference threshold can be set according to actual conditions. In this way, the display screen and the electronic device system can be better cooled, so that the display screen and the electronic device system can operate stably.

[0082] Optionally, the above method further comprises: in the case that the first temperature difference is greater than the first temperature difference threshold, the electronic device closes unnecessary applications. In this way, the CPU occupancy rate can be reduced, and the influence of the heat of the system on the display screen can be reduced. Therefore, the system power consumption is reduced, and the temperature of the display screen is reduced. Further, the display screen and the electronic device system can operate stably.

[0083] In the actual use of the above method, for example, in the case that the electronic device is a smart control panel, the operation mode of the smart control panel can include a normal operation mode and an energy-saving operation mode, and the brightness mode of the smart control panel can include a manual mode and a smart mode. In the manual mode, the panel screen brightness can be manually adjusted, and the brightness display percentage is adjusted in the range of 0-100. The brightness of 0 is the lowest brightness, and the brightness of 100 is the highest brightness. Each brightness level corresponds to a different PWM duty cycle, and the system adjusts the PWM duty cycle to adjust the screen brightness. In the smart mode, the panel adjusts the screen brightness according to the collected ambient light intensity, so that the screen brightness automatically adapts to the environment and is adjusted to the most comfortable brightness for the human eye. In the case of manual mode or smart mode operation, the above method for display screen backlight control is executed. When it is detected that the user is at home, the system enters the normal operation mode, the brightness mode is operated according to the system state and the user setting value, and the above method for display screen backlight control is executed. When it is detected that the user is away from home, the system enters the energy-saving operation mode, the panel sets the standby waiting time to the shortest, and sets the screen brightness to the lowest. Whether there is a person in the user's home can be determined by binding the user's family members through an application program or through smart sensors in the home, and the smart sensors include a human body sensor, a smart door lock, etc.

[0084] In the actual operation of the electronic device, another method for display screen backlight control is shown in Figure 5

[0085] S501, obtain the temperature of the display screen and the current ambient temperature.

[0086] S502, calculate the first temperature difference between the temperature of the display screen and the current ambient temperature. For example, the temperature of the display screen is 50°C, and the current ambient temperature is 22°C, so the first temperature difference is 28°C.

[0087] S503, according to the mapping relationship between the ambient temperature and the temperature difference threshold, determine the first temperature difference threshold corresponding to the current ambient temperature. For example, the current ambient temperature is 22°C, and the first temperature difference threshold corresponding to the ambient temperature is 20°C.

[0088] S504, in the case that the first temperature difference is greater than the first temperature difference threshold, obtain the current ambient light intensity. For example, the temperature difference is 28°C, and the temperature difference threshold corresponding to the current ambient temperature is 20°C, so the current ambient light intensity obtained is 100lx.

[0089] S505, according to the mapping relationship between the ambient light intensity and the screen brightness, determine the first screen brightness corresponding to the current ambient light intensity. For example, the current ambient light intensity is 100lx, and the corresponding screen brightness is 60.

[0090] S506, in the case that the first screen brightness is less than the first current screen brightness, adjust the screen brightness of the display screen to the first screen brightness. For example, the first screen brightness is 60, and the first current screen brightness is 80, so the screen brightness of the display screen is adjusted to 60.

[0091] S507, in the case that the first screen brightness is greater than or equal to the first current screen brightness, reduce the screen brightness of the display screen by a preset brightness threshold. For example, the first screen brightness is 60, the first current screen brightness is 50, and the preset brightness threshold is 10, so the screen brightness of the display screen is adjusted to 40.

[0092] S508, obtain a plurality of second temperature differences between the second temperature of the display screen and the second ambient temperature. For example, the temperature of the display screen and the ambient temperature are obtained every 30s and the second temperature difference is calculated.

[0093] S509, respectively determine the second temperature difference threshold corresponding to each second ambient temperature. For example, in 2 minutes, the temperature of the display screen and the ambient temperature are obtained 4 times, and according to the mapping relationship between the ambient temperature and the temperature difference threshold, the second temperature difference threshold of each time can be determined.

[0094] ​S510, obtain a difference value change condition of the second temperature difference and the second temperature difference threshold. For example, the difference values of the second temperature difference and the second temperature difference threshold are 2℃, 2.3℃, 2.5℃ and 2.8℃ from front to back for 4 times, and the difference value change condition can be determined from the difference values.

[0095] S511, in the case that the difference value is positive and shows an upward trend, determine the second temperature difference and the second temperature difference threshold difference rate, the current environment temperature and the second current screen brightness of the display screen.

[0096] S512, determine the second screen brightness according to the mapping relationship of the difference rate, the environment temperature and the screen brightness.

[0097] S513, adjust the screen brightness of the display screen to the second screen brightness.

[0098] In combination Figure 6 As shown in the figure, the embodiment of the present disclosure provides another device 300 for display screen backlight control, which includes a processor 100 and a memory 101 storing program instructions. Optionally, the device can also include a communication interface 102 and a bus 103. Wherein, the processor 100, the communication interface 102, the memory 101 can complete the communication among each other through the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can call the logical instructions in the memory 101 to execute the method for display screen backlight control in the above-mentioned embodiment.

[0099] In addition, the logical instructions in the memory 101 described above can be realized in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0100] The memory 101 as a storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 100 executes the program instructions / modules stored in the memory 101, thereby executing function applications and data processing, that is, realizing the method for display screen backlight control in the above-mentioned embodiment.

[0101] The memory 101 can include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required by a function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 101 can include a high-speed random access memory, and can also include a non-volatile memory.

[0102] The control panel provided by the embodiments of the present disclosure comprises a control panel body and the device 300 for display screen backlight control described above. The device 300 for display screen backlight control is installed on the control panel body. The installation relationship described herein is not limited to being placed inside the product, but also includes installation connection with other components of the product, including but not limited to physical connection, electrical connection or signal transmission connection, etc. Those skilled in the art can understand that the device 300 for display screen backlight control can be adapted to the feasible product body, thereby realizing other feasible embodiments.

[0103] The embodiments of the present disclosure provide a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are configured to execute the method for display screen backlight control.

[0104] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0105] The technical solutions of the embodiments of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the embodiments of the present disclosure. The storage medium described above can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. various media that can store program codes, or a transitory storage medium.

[0106] The above description and drawings sufficiently show the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural, logical, electrical, process, and other changes. The embodiments represent only a few of the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be changed. Parts and features of some embodiments can be included in or replace parts and features of other embodiments. Also, the words used in this application are only used to describe the embodiments and not to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an", and "the" do not exclude the plural forms unless the context clearly indicates otherwise. Unqualified use of the term "including" means "comprising" or "consisting of".

[0107] (a), and "the" are intended to be equivalent to "one", "said" or "the" is intended to include both the singular and the plural, unless otherwise indicated. Similarly, the terms "and / or" and "at least one of" followed by a list of two or more items are intended to cover the respective items individually as well as in any combination of the items, unless otherwise indicated. Further, the term "comprising" the terms "comprises" and / or "comprising," and the like, when used in this application, specify the presence of stated features, integers, steps, operations, elements, and / or components but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. The term "consisting essentially of to the extent it is used in this application, specifies the presence of stated features, integers, steps, operations, elements, and / or components as well as those that do not materially affect the method, product or apparatus operation. In the absence of further limitations, the term "consisting of as used herein specifies the stated components, and does not permit the presence of additional components. Each embodiment can be focused on the differences from other embodiments, and the same or similar parts between embodiments can be referred to each other. For the method, product, etc. disclosed by the embodiments, if it corresponds to the method part disclosed by the embodiments, the relevant part can be referred to the description of the method part.

[0108] Those skilled in the art can understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of the embodiments of the present disclosure. The skilled person can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0109] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to apparatuses, devices, etc.), can be implemented in other manners. For example, the described apparatus embodiments can be implemented only in a form of a logical function, and can be implemented by using a manner such as software (for example, application program) or the like. In some embodiments, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or indirect coupling between different units, or the coupling or direct coupling or indirect coupling between the displayed or discussed communication connections can be in a form of electrical, mechanical or other forms.

[0110] The flowcharts and block diagrams in the drawings show the possible implementation architectures, functions and operations of the system, method and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment or a part of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks can occur in an order different from that noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the drawings, the operations or steps corresponding to different blocks can also occur in an order different from that disclosed in the descriptions, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for display backlight control, characterized by, comprising: obtaining a first temperature difference between a first temperature of a display screen and a first ambient temperature; determining a first temperature difference threshold according to the first ambient temperature; adjusting a screen brightness of the display screen according to an ambient light intensity, in a case that the first temperature difference is greater than the first temperature difference threshold; maintaining a current screen brightness, in a case that the first temperature difference is less than or equal to the first temperature difference threshold; after adjusting the screen brightness of the display screen, further comprising: obtaining a plurality of second temperature differences between a second temperature of the display screen and a plurality of second ambient temperatures; determining a second temperature difference threshold corresponding to each second ambient temperature respectively; obtaining a difference value change condition of the second temperature difference and the second temperature difference threshold; determining a second screen brightness, in a case that the difference value change condition is a positive value and presents an upward trend, a difference value change rate of the second temperature difference and the second temperature difference threshold, a current ambient temperature, and a second current screen brightness of the display screen; determining the second screen brightness according to the difference value change rate, the current ambient temperature, and the second current screen brightness; adjusting the screen brightness of the display screen to the second screen brightness.

2. The method of claim 1, wherein, The adjusting the screen brightness of the display screen according to the ambient light intensity comprises: obtaining a current ambient light intensity; determining a first screen brightness corresponding to the current ambient light intensity according to a mapping relationship between ambient light intensity and screen brightness; adjusting the screen brightness of the display screen according to the first screen brightness.

3. The method of claim 2, wherein, The adjusting the screen brightness of the display screen according to the first screen brightness comprises: obtaining a first current screen brightness of the display screen; adjusting the screen brightness of the display screen to the first screen brightness, in a case that the first screen brightness is less than the first current screen brightness; decreasing the screen brightness of the display screen by a preset brightness threshold, in a case that the first screen brightness is greater than or equal to the first current screen brightness.

4. The method according to any one of claims 1 to 3, characterized in that, further comprising: decreasing a standby waiting time length of the display screen, in a case that the first temperature difference is greater than the first temperature difference threshold and there is no user operation; performing information prompting, in a case that the first temperature difference is greater than the first temperature difference threshold and there is user operation, to adjust the screen brightness of the display screen according to a screen brightness instruction sent by the user based on the information prompting.

5. An apparatus for display backlight control, comprising a processor and a memory having stored therein program instructions, the apparatus characterized by: The processor is configured to execute the method for display screen backlight control of any one of claims 1 to 4 when running program instructions.

6. A control panel characterized by, comprising: a control panel body; and, The apparatus for display screen backlight control of claim 5 is installed in the control panel body.

7. A storage medium storing program instructions, characterized in that, The program instructions execute the method for display screen backlight control of any one of claims 1 to 4 when running.

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