A method for lighting an RGB LED screen in a humid environment, a display screen, and a processing terminal

Abstract

The present invention discloses a method for lighting an RGB LED screen in a humid environment, comprising: step 1: obtaining the current ambient humidity and dividing it into several levels; lighting the screen at a preset brightness according to the current ambient humidity of the corresponding level, wherein the lower the current ambient humidity, the greater the preset brightness; step 2: if the current ambient humidity is at the highest level, lighting the screen at the highest brightness; and detecting the current ambient humidity after lighting for a period of time. Based on whether the new current ambient humidity drops below a preset threshold, the driving current of the R lamp bead is lowered, and the driving current of the G lamp bead and the B lamp bead are increased, and the sum of the driving currents of the three lamp beads approaches the maximum driving current; step 3: repeating steps 1-2 to dynamically maintain the lighting of the RGB LED screen at the corresponding preset brightness and driving current according to different current ambient humidity. The present invention is adaptable to different humid environments and quickly restores the screen to normal display.

Description

Technical Field

[0001] The present invention relates to the technical field of screen control and display, and in particular to an RGB LED screen lighting method, a display screen and a processing terminal in a humid environment. Background Art

[0002] When operating a screen in a humid environment, improper current control can affect normal screen operation. For example, excessive current can damage the screen, while insufficient current can render the screen inoperable. Existing screens often operate at a fixed brightness to reduce humidity through heat dissipated by the screen. However, the current generated by this fixed brightness can cause screen failure in certain humid environments, with the severity of the humidity increasing the risk of screen failure. Therefore, ensuring screen operation in varying degrees of humidity is of practical economic importance. Summary of the Invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a method for lighting a screen in a humid environment, which can solve the problems described in the background art.

[0004] The technical solution for achieving the purpose of the present invention is: a method for lighting an RGB LED screen in a humid environment, comprising the following steps:

[0005] Step 1: Get the current humidity of the environment where the screen is located. If the current humidity is ≤ A, light up the RGB LED screen with the maximum safe current allowed by the screen. A is the first preset threshold, 0≤A<1, which indicates that the humidity below A is safe.

[0006] If A < current ambient humidity ≤ second preset threshold B, and second preset threshold B > first preset threshold A, and second preset threshold B indicates that the current ambient humidity has reached the highest level of classification standard, then the ambient humidity is divided into at least two levels, each level corresponds to a preset brightness, and the RGB LED screen is lit according to the preset brightness corresponding to the level of the current ambient humidity, the preset brightness is a times the maximum brightness, 0 < a < 1, and the lower the current ambient humidity, the greater the preset brightness;

[0007] Step 2: If the current ambient humidity is at the level where the lower limit value is the second preset threshold value B, then after a period of time after lighting the screen at the preset brightness corresponding to the current ambient humidity level, continue to detect the current ambient humidity. If the current ambient humidity is still above the second preset threshold value B, then reduce the driving current of the G lamp bead in the RGB LED screen, and increase the driving current of the R lamp bead and the B lamp bead, and the sum of the driving currents of the R lamp bead, the G lamp bead and the B lamp bead approaches the maximum allowable driving current.

[0008] If the sum of the driving currents reaches the maximum driving current, the current ambient humidity is detected immediately and continuously for a period of time thereafter. If the current ambient humidity is less than the second preset threshold value B, jump to step 1. If the current ambient humidity is still greater than or equal to the second preset threshold value B, continue to reduce the driving current of the G lamp bead in the RGB LED screen, and distribute the current corresponding to the reduction amount to the G lamp bead and / or the B lamp bead, so that the sum of the driving currents of the three RGB lamp beads is equal to the maximum driving current.

[0009] Furthermore, the first preset threshold value A is 40%, and the second preset threshold value B is 95%.

[0010] Furthermore, in step 1, under the premise of satisfying white balance, the RGB LED screen is lit with the maximum safe current allowed by the screen.

[0011] Furthermore, in step 1, if the current environment makes ≤A, the RGB LED screen is lit at the target brightness preset by the user instead of lighting the RGB LED screen at the maximum safe current allowed by the screen.

[0012] Furthermore, in step 1, if A<current ambient humidity≤second preset threshold B, the ambient temperature is divided into three levels, namely, current ambient humidity between 40%-70%, current ambient humidity between 70%-90%, and current ambient humidity between 90%-95%.

[0013] Furthermore, the preset brightness corresponding to the current ambient humidity between 40% and 70% is 20% of the maximum brightness, the preset brightness corresponding to the current ambient humidity between 70% and 90% is 10% of the maximum brightness, and the preset brightness corresponding to the current ambient humidity between 90% and 95% is 7% of the maximum brightness.

[0014] Furthermore, after step 2, the method further includes:

[0015] Step 3: Repeat steps 1 to 2 to dynamically maintain lighting the RGB LED screen with corresponding preset brightness and corresponding driving current according to different current ambient humidity.

[0016] A display screen comprises the RGB LED screen and an actuator for running the RGB LED screen lighting method in a humid environment.

[0017] A processing terminal, comprising:

[0018] a memory for storing program instructions;

[0019] A processor is used to run the program instructions to execute the steps of the method for lighting the RGB LED screen in a humid environment.

[0020] The beneficial effects of the present invention are: the present invention can dynamically adjust the corresponding display brightness and driving current according to different current ambient humidity, while ensuring safety and not damaging the screen, so as to enable the screen to be lit and displayed under different current ambient humidity, and by determining the corresponding driving current and preset brightness, the screen can be lit as quickly as possible, so that the screen can be quickly restored to normal display in a humid environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the process of the present invention;

[0022] Figure 2 A schematic diagram of a processing terminal. DETAILED DESCRIPTION

[0023] Below, with reference to the accompanying drawings and specific embodiments, the present invention will be further described:

[0024] like Figure 1 As shown, a method for lighting an RGB LED screen in a humid environment includes the following steps:

[0025] Step 1: Obtain the current humidity of the environment where the screen is located. If the current humidity is ≤ A, then, provided that white balance is met, illuminate the RGB LED screen at the maximum safe current allowed by the screen, or illuminate the screen at a user-preset target brightness. A is a first preset threshold, 0≤A<1, indicating that humidity below A is safe, and the RGB LED screen can be illuminated at the maximum safe current, thereby enabling the RGB LED screen to display at maximum brightness and meet the RGB LED screen white balance.

[0026] The current ambient humidity can be detected by a humidity sensor.

[0027] In this embodiment, the first preset threshold value A is set to 40%. This means that when the current ambient humidity is below 40%, the RGB LED screen operates at the maximum safe current allowed by the screen, thereby illuminating and displaying the RGB LED screen. The maximum safe current refers to the maximum safe current supported by the screen hardware. Exceeding this current often means damage to the screen, such as breakdown.

[0028] If A < current ambient humidity ≤ second preset threshold B, and second preset threshold B > first preset threshold A, it means that the current ambient humidity has reached the highest level of classification criteria, then the ambient humidity is divided into at least two levels, each level corresponds to a preset brightness, and the RGB LED screen is lit according to the preset brightness corresponding to the level of the current ambient humidity. The preset brightness is a times the maximum brightness, 0 < a < 1. And the lower the current ambient humidity, the greater the preset brightness. By running each environment, the maximum safe current corresponding to the level is achieved to light up the screen at the preset brightness one by one. For example, if the current ambient humidity is > 95%, the preset brightness is 5% of the maximum brightness, and the current maximum safe current is 2mA (milliamperes). For another example, if the current environment is between 70% and 90%, the preset brightness is 10% of the maximum brightness, and the current maximum safe current is 4mA.

[0029] As an example, A takes a value of 40%, and the ambient humidity above 40 is divided into four levels. The preset brightness corresponding to each level is shown in the following table:

[0030] Preset brightness Current ambient humidity Maximum safe current (mA) 5％ More than 95% 2 7％ 90％-95％ 2.8 10％ 70％-90％ 4 20％ 40％-70％ 8

[0031] In the above table, the second preset threshold value B = 95%. Therefore, the second preset threshold value B is used as the lower limit value to divide the current environmental humidity into a level above 95%, and the LED screen displaying RGB is lit at the preset brightness of 5% at this level.

[0032] Of course, in actual use, it can also be divided into more levels. The preset brightness corresponding to each level of current ambient humidity can also be adjusted according to actual conditions, and the corresponding maximum safe current can also be adjusted according to actual conditions.

[0033] Step 2: If the current ambient humidity is at the level where the lower limit is the second preset threshold value B, that is, the level is divided with the second preset threshold value B as the lower limit, that is, a level of ambient humidity greater than B, then after a period of time after the screen is lit according to the preset brightness corresponding to the level of the current ambient humidity, the current ambient humidity is continued to be detected. If the current ambient humidity is still above the second preset threshold value B, the driving current of the G lamp bead (that is, the LED lamp bead displaying green) in the RGB LED screen is lowered, for example, the driving current of the G lamp bead is lowered to 75% of the maximum allowable driving current, and the driving current of the R lamp bead (that is, the LED lamp bead displaying red) and the B lamp bead (that is, the LED lamp bead displaying blue) is increased, and the sum of the driving currents of the R lamp bead, G lamp bead and B lamp bead approaches the maximum allowable driving current. The maximum allowable driving current is also the maximum safe current to ensure that the screen can operate normally. The maximum safe current is usually limited by the hardware performance of the screen.

[0034] The term "approaching the maximum driving current" means adjusting the sum of the driving currents of the RGB lamp beads to be as close to the maximum driving current as possible, but always less than the maximum driving current.

[0035] If the sum of the driving currents reaches (i.e. is equal to) the maximum driving current, the current ambient humidity is detected immediately and continuously for a period of time thereafter. If the current ambient humidity is less than the second preset threshold value B, jump to step 1. If the current ambient humidity is still greater than or equal to the second preset threshold value B, continue to reduce the driving current of the G lamp bead in the RGB LED screen, and distribute the current corresponding to the reduction amount to the G lamp bead and / or the B lamp bead, so that the sum of the driving currents of the three RGB lamp beads is equal to the maximum driving current.

[0036] Step 3: Repeat steps 1 to 2 to dynamically maintain lighting the RGB LED screen with corresponding preset brightness and corresponding driving current according to different current ambient humidity.

[0037] The present invention can dynamically adjust the corresponding display brightness and driving current according to different current ambient humidity, while ensuring safety and not damaging the screen, so as to enable the screen to be lit and displayed under different current ambient humidity. By determining the corresponding driving current and preset brightness, the screen can be lit as quickly as possible, so that the screen can be quickly restored to normal display in a humid environment.

[0038] The present invention also provides a display screen, comprising the RGB LED screen and an actuator for running the RGB LED screen lighting method in a humid environment.

[0039] like Figure 2 As shown, the present invention further provides a processing terminal 100, which includes:

[0040] Memory 101, used for storing program instructions;

[0041] The processor 102 is used to run the program instructions to execute the steps of the method for lighting the RGB LED screen in a humid environment.

[0042] The embodiment disclosed in this specification is merely an illustration of one aspect of the present invention. The scope of protection of the present invention is not limited to this embodiment. Any other functionally equivalent embodiments fall within the scope of protection of the present invention. Those skilled in the art can make various other corresponding changes and modifications based on the technical solutions and concepts described above, and all such changes and modifications should fall within the scope of protection of the claims of the present invention.

Claims

1. A method for lighting an RGB LED screen in a humid environment, characterized in that: The steps include: Step 1: Obtain the current humidity of the environment where the screen is located. If the current humidity is ≤ A, light up the RGB LED screen with the maximum safe current allowed by the screen. A is a first preset threshold, 0≤A<1, which indicates that the humidity below A is safe. If A < current ambient humidity ≤ second preset threshold B, and second preset threshold B > first preset threshold A, and second preset threshold B indicates that the current ambient humidity has reached the highest level of classification standard, then the ambient humidity is divided into at least two levels, each level corresponds to a preset brightness, and the RGB LED screen is lit according to the preset brightness corresponding to the level of the current ambient humidity. The preset brightness is a times the maximum brightness, 0 < a < 1, and the lower the current ambient humidity, the greater the preset brightness. The screen is lit up at the preset brightness by running the maximum safe current corresponding to each ambient humidity level. Step 2: If the current ambient humidity is at the level where the lower limit is the second preset threshold value B, which is a level of ambient humidity greater than B, then after a period of time after lighting the screen at the preset brightness corresponding to the current ambient humidity level, continue to detect the current ambient humidity. If the current ambient humidity is still above the second preset threshold value B, then reduce the driving current of the G lamp bead in the RGB LED screen, and increase the driving current of the R lamp bead and the B lamp bead, and the sum of the driving currents of the R lamp bead, the G lamp bead and the B lamp bead approaches the maximum allowable safe current. If the sum of the driving currents reaches the maximum safe current, the current ambient humidity is detected immediately and continuously for a period of time thereafter. If the current ambient humidity is less than the second preset threshold value B, jump to step 1. If the current ambient humidity is still greater than or equal to the second preset threshold value B, continue to reduce the driving current of the G lamp bead in the RGB LED screen, and distribute the current corresponding to the reduction amount to the G lamp bead and / or the B lamp bead, so that the sum of the driving currents of the three RGB lamp beads is equal to the maximum safe current.

2. The method for lighting an RGB LED screen in a humid environment according to claim 1, characterized in that: The first preset threshold value A is 40%, and the second preset threshold value B is 95%.

3. The method for lighting an RGB LED screen in a humid environment according to claim 2, characterized in that: In step 1, under the premise of satisfying white balance, the RGB LED screen is lit with the maximum safe current allowed by the screen.

4. The method for lighting an RGB LED screen in a humid environment according to claim 3, characterized in that: In step 1, if the current ambient humidity is ≤ A, the RGB LED screen is lit at the target brightness preset by the user instead of lighting the RGB LED screen at the maximum safe current allowed by the screen.

5. The method for lighting an RGB LED screen in a humid environment according to claim 4, characterized in that: In step 1, if A<current ambient humidity≤second preset threshold B, the ambient temperature is divided into three levels, namely, current ambient humidity between 40%-70%, current ambient humidity between 70%-90%, and current ambient humidity between 90%-95%.

6. The method for lighting an RGB LED screen in a humid environment according to claim 5, characterized in that: When the current ambient humidity is between 40% and 70%, the preset brightness is 20% of the maximum brightness; when the current ambient humidity is between 70% and 90%, the preset brightness is 10% of the maximum brightness; and when the current ambient humidity is between 90% and 95%, the preset brightness is 7% of the maximum brightness.

7. The method for lighting an RGB LED screen in a humid environment according to claim 6, characterized in that: After step 2, it also includes, Step 3: Repeat steps 1-2 to dynamically maintain lighting the RGB LED screen with corresponding preset brightness and corresponding driving current according to different current ambient humidity.

8. A display screen, characterized in that: The display screen includes the RGB LED screen as described in any one of claims 1 to 7, and an actuator for running the RGB LED screen lighting method in a humid environment.

9. A processing terminal, characterized in that: It includes: a memory for storing program instructions; A processor is used to run the program instructions to execute the steps of the method for lighting an RGB LED screen in a humid environment as described in any one of claims 1-7.

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