Screen heating control method and system applied to terminal starting

Abstract

The invention relates to a screen heating control method and system applied to terminal starting. The screen heating control method comprises the steps: S1, monitoring the temperatures of multiple different positions of a screen in real time to obtain multiple real-time temperature values; S2, calculating a median temperature value in the plurality of real-time temperature values, and obtaining differences between the plurality of real-time temperature values and the median temperature value; S3, selecting the real-time temperature value with the difference value meeting a preset condition asan effective temperature value, and obtaining an average value of all the effective temperature values; S4, comparing the average value with a preset target value, executing the step S5 when the average value is less than the preset target value, and executing the step S6 when the average value is not less than the preset target value; S5, starting the screen heating system, obtaining a differencevalue between the average value and a preset target value and a change value of the average value according to a preset period so as to control the heating power of the screen heating system, and executing the step S1; S6, starting a terminal starting process. By implementing the invention, the heating power consumption can be effectively reduced so as to improve the cruising ability of the equipment in a low-temperature environment.

Description

technical field [0001] The present invention relates to the field of electronic technology, and more specifically, to a screen heating control method and system applied to terminal startup. Background technique [0002] Join the heating system. The LCD screen heating system is a key component of low-temperature mobile terminals. The core of LCD screen imaging is "the change of the alignment direction of liquid crystal molecules", that is, the activity of liquid crystal molecules. Therefore, as long as there are factors in the environment that can affect the activity of liquid crystal molecules, the display quality of the LCD screen can be changed. It just so happens that the liquid crystal material is very sensitive to the temperature of the environment. The lower the temperature, the slower the flipping speed of the liquid crystal molecules, which means that the response time of the screen becomes longer. Therefore, although manufacturers use various methods to shorten t...

AI Technical Summary

Problems solved by technology

[0003] At present, the screen automatic heating system existing in low-temperature mobile terminals uses a single screen temperature sensor as negative feedback. The screen heating system in low-temperature mobile terminals is a large inertia and large-lag control system. Heating hysteresis creates excessive power dissipation

[0004] In a low temperature environment, due to the inherent characteristics of the battery: the lower the temperature, the greater the internal resistance. If the heating system of the device is turned off to heat the screen with full power, the large current generated by the heating system will instantly pull down the battery. Voltage, if the battery is in a low battery state at this time, the battery may trigger the overvoltage protection value set by the battery in this case, causing the device to fail to start normally; , the device will shut down suddenly

The above two situations not only affect the battery life of the device, but also particularly affect the customer's experience of using the mobile terminal.

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