CN112735324A - LED display screen control method and device - Google Patents

LED display screen control method and device Download PDF

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Publication number
CN112735324A
CN112735324A CN201910979012.6A CN201910979012A CN112735324A CN 112735324 A CN112735324 A CN 112735324A CN 201910979012 A CN201910979012 A CN 201910979012A CN 112735324 A CN112735324 A CN 112735324A
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China
Prior art keywords
temperature
current
value
display screen
led display
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CN201910979012.6A
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Chinese (zh)
Inventor
李东林
蓝明华
闫科锋
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Hangzhou Hikvision Digital Technology Co Ltd
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Hangzhou Hikvision Digital Technology Co Ltd
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Priority to CN201910979012.6A priority Critical patent/CN112735324A/en
Publication of CN112735324A publication Critical patent/CN112735324A/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/041—Temperature compensation

Abstract

The embodiment of the invention provides a method and a device for controlling an LED display screen, which are applied to an LED controller. The method comprises the following steps: acquiring the current temperature of an LED display screen controlled by an LED controller; determining a target current adjusting value matched with the current temperature in a preset temperature characteristic corresponding relation; wherein, the temperature characteristic corresponding relation is as follows: regarding the corresponding relationship between the temperature values and the current adjustment values, the current adjustment value corresponding to each temperature value is: the temperature of the LED display screen is the temperature value, and when white balance is kept, the current regulating value corresponding to each color lamp bead in the LED display screen is adjusted; and adjusting the current value corresponding to each color lamp bead in the LED display screen according to the target current adjusting value. Compared with the prior art, the scheme provided by the embodiment of the invention can ensure that the LED display screen always keeps white balance in the display process.

Description

LED display screen control method and device
Technical Field
The present invention relates to the field of LED (Light Emitting Diode) technology, and in particular, to a method and an apparatus for controlling an LED display screen.
Background
Currently, with the continuous development of LED technology, LED display screens are increasingly applied to daily life, for example, display screens of various electronic devices, advertisement light boxes in markets, and the like.
Generally, an LED display screen is composed of thousands of LED lamps, and each LED lamp is composed of a combination of red, green and blue beads. In order to reduce the color difference as much as possible when the LED display screen displays a picture, so as to restore the true color of the displayed picture as accurately as possible, the LED display screen needs to achieve white balance, that is, the mixed light of the red, green and blue beads in each LED lamp in the LED display screen appears white.
However, since the LED lamp emits light by current driving, the LED display panel may generate temperature variation due to continuous heat generation of current flowing through the circuit as time goes on during the display process of the LED display panel. Furthermore, because the trend that the brightness of the red, green and blue beads changes with the temperature is different, as shown in fig. 1, as the display time of the LED display screen increases, the mixed light of the red, green and blue beads in each LED lamp will shift in color, and will not be white any more, that is, the white balance of the LED display screen will shift, so that the display image of the LED display screen has a relatively serious color difference, which affects the viewing effect of the user.
Therefore, how to ensure that the white balance of the LED display screen is always kept in the display process is a problem which needs to be solved urgently at present.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a device for controlling an LED display screen, so as to ensure that the LED display screen always keeps white balance in the display process. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a method for controlling an LED display screen, where the method is applied to an LED controller, and the method includes:
acquiring the current temperature of an LED display screen controlled by the LED controller;
determining a target current adjusting value matched with the current temperature in a preset temperature characteristic corresponding relation; wherein, the temperature characteristic corresponding relation is as follows: regarding the corresponding relationship between the temperature values and the current adjustment values, the current adjustment value corresponding to each temperature value is: the temperature of the LED display screen is the temperature value, and when white balance is kept, the current regulating value corresponding to each color lamp bead in the LED display screen is obtained;
and adjusting the current value corresponding to each color lamp bead in the LED display screen according to the target current adjusting value.
Optionally, in a specific implementation manner, a plurality of temperature values exist in the temperature characteristic corresponding relationship, and the same temperature difference exists between any two adjacent temperature values;
the step of determining a target current adjustment value matched with the current temperature in a preset temperature characteristic corresponding relationship includes:
and determining a target temperature value with the minimum temperature difference with the current temperature in the plurality of temperature values, and determining the current regulation value corresponding to the target temperature value as a target current regulation value matched with the current temperature.
Optionally, in a specific implementation manner, the generating manner of the temperature characteristic correspondence includes:
acquiring multiple groups of temperature characteristic data in the display process of the LED display screen, wherein each group of temperature characteristic data comprises: the LED display screen displays a temperature value reached in the process;
acquiring a standard current value corresponding to a temperature value included in each group of temperature characteristic data, wherein the standard current value corresponding to each group of temperature characteristic data is as follows: under the temperature value included in the group of temperature characteristic data, when the LED display screen reaches white balance, the current value corresponding to each color lamp bead in the LED display screen;
and generating the temperature characteristic corresponding relation based on the plurality of groups of temperature characteristic data and the standard current value corresponding to each group of temperature characteristic data.
Optionally, in a specific implementation manner, each set of temperature characteristic data further includes: under the temperature value included in the group of temperature characteristic data, the actual current value corresponding to each color light bead in the LED display screen;
the step of generating the temperature characteristic corresponding relationship based on the plurality of sets of temperature characteristic data and the standard current value corresponding to each set of temperature characteristic data includes:
calculating a difference value between a standard current value and an actual current value corresponding to each color lamp bead in the LED display screen under a temperature value included in each group of temperature characteristic data as a current regulation value corresponding to the temperature value included in the group of temperature characteristic data;
generating a corresponding relation between a temperature value included in each group of temperature characteristic data and the calculated current regulation value as a temperature characteristic corresponding relation for each group of temperature characteristic data;
the step of adjusting the current value corresponding to each color light bead in the LED display screen according to the target current adjustment value comprises the following steps:
and aiming at each color lamp bead in the LED display screen, taking the current regulating value corresponding to the color lamp bead in the target current regulating value as the current regulating quantity of the color lamp bead, and regulating the actual current value of the color lamp bead.
Optionally, in a specific implementation manner, the step of generating the temperature characteristic corresponding relationship based on the multiple sets of temperature characteristic data and the standard current value corresponding to each set of temperature characteristic data includes:
for each group of temperature characteristic data, determining a standard current value corresponding to the temperature included in the group of temperature characteristic data as a current regulation value, and generating a corresponding relation between a temperature value included in the group of temperature characteristic data and the determined current regulation value as a temperature characteristic corresponding relation;
the step of adjusting the current value corresponding to each color light bead in the LED display screen according to the target current adjustment value comprises the following steps:
and aiming at each color lamp bead in the LED display screen, adjusting the actual current value corresponding to the color lamp bead to the current adjusting value corresponding to the color lamp bead in the target current adjusting value.
In a second aspect, an embodiment of the present invention provides an LED display screen control apparatus, which is applied to an LED controller, where the apparatus includes:
the temperature acquisition module is used for acquiring the current temperature of the LED display screen controlled by the LED controller;
the adjusting value determining module is used for determining a target current adjusting value matched with the current temperature in a preset temperature characteristic corresponding relation; wherein, the temperature characteristic corresponding relation is as follows: the corresponding relation generation module generates a corresponding relation between the temperature values and the current regulation values, and the current regulation value corresponding to each temperature value is as follows: the temperature of the LED display screen is the temperature value, and when white balance is kept, the current regulating value corresponding to each color lamp bead in the LED display screen is obtained;
and the current adjusting module is used for adjusting the current value corresponding to each color lamp bead in the LED display screen according to the target current adjusting value.
Optionally, in a specific implementation manner, a plurality of temperature values exist in the temperature characteristic corresponding relationship, and the same temperature difference exists between any two adjacent temperature values;
the adjustment value determination module is specifically configured to:
and determining a target temperature value with the minimum temperature difference with the current temperature in the plurality of temperature values, and determining the current regulation value corresponding to the target temperature value as a target current regulation value matched with the current temperature.
Optionally, in a specific implementation manner, the correspondence generating module includes:
the data acquisition submodule is used for acquiring a plurality of groups of temperature characteristic data in the display process of the LED display screen, wherein each group of temperature characteristic data comprises: the LED display screen displays a temperature value reached in the process;
the standard value obtaining submodule is used for obtaining a standard current value corresponding to a temperature value included in each group of temperature characteristic data, wherein the standard current value corresponding to each group of temperature characteristic data is as follows: under the temperature value included in the group of temperature characteristic data, when the LED display screen reaches white balance, the current value corresponding to each color lamp bead in the LED display screen;
and the relation generation submodule is used for generating the temperature characteristic corresponding relation based on the plurality of groups of temperature characteristic data and the standard current value corresponding to each group of temperature characteristic data.
Optionally, in a specific implementation manner, each set of temperature characteristic data further includes: under the temperature value included in the group of temperature characteristic data, the actual current value corresponding to each color light bead in the LED display screen;
the relationship generation submodule is specifically configured to:
calculating a difference value between a standard current value and an actual current value corresponding to each color lamp bead in the LED display screen under a temperature value included in each group of temperature characteristic data as a current regulation value corresponding to the temperature value included in the group of temperature characteristic data; generating a corresponding relation between a temperature value included in each group of temperature characteristic data and the calculated current regulation value as a temperature characteristic corresponding relation for each group of temperature characteristic data;
the current regulation module is specifically configured to:
and aiming at each color lamp bead in the LED display screen, taking the current regulating value corresponding to the color lamp bead in the target current regulating value as the current regulating quantity of the color lamp bead, and regulating the actual current value of the color lamp bead.
Optionally, in a specific implementation manner, the relationship generation sub-module is specifically configured to:
for each group of temperature characteristic data, determining a standard current value corresponding to the temperature included in the group of temperature characteristic data as a current regulation value, and generating a corresponding relation between a temperature value included in the group of temperature characteristic data and the determined current regulation value as a temperature characteristic corresponding relation;
the current regulation module is specifically configured to:
and aiming at each color lamp bead in the LED display screen, adjusting the actual current value corresponding to the color lamp bead to the current adjusting value corresponding to the color lamp bead in the target current adjusting value.
In a third aspect, an embodiment of the present invention provides an electronic device, where the electronic device includes an LED display screen and an LED controller, where the LED controller is configured to control a current value corresponding to each color light bead in the LED display screen; the system comprises a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for finishing mutual communication through the communication bus;
a memory for storing a computer program;
and the processor is used for realizing the steps of any one of the LED display screen control methods provided by the first aspect when executing the program stored in the memory.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps of any one of the LED display screen control methods provided in the first aspect above are implemented.
As can be seen from the above, with the adoption of the scheme provided by the embodiment of the invention, in the display process of the LED display screen, the LED controller can acquire the current temperature of the LED display screen, and determine the current adjustment value matched with the current temperature in the preset temperature characteristic corresponding relation. Furthermore, the LED controller can adjust the current value corresponding to each color light bead in the LED display screen according to the determined current adjusting value. Therefore, in the display process of the LED display screen, the LED controller can utilize the preset temperature characteristic corresponding relation to adjust the current value corresponding to each color lamp bead in the LED display screen at different temperatures, so that the LED display screen can reach white balance. Based on the scheme provided by the embodiment of the invention, in the display process of the LED display screen, no matter how the temperature of the LED display screen changes, the LED controller can ensure that the LED display screen can always keep white balance by adjusting the current value corresponding to each color lamp bead in the LED display screen.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a corresponding relationship between relative brightness and temperature of a red, green and blue lamp bead;
fig. 2 is a schematic flow chart of a method for controlling an LED display screen according to an embodiment of the present invention;
fig. 3 is a schematic flow chart illustrating a generation manner of a temperature characteristic correspondence relationship according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of device interaction in a manner of generating a temperature characteristic correspondence;
fig. 5 is a schematic structural diagram of an LED display screen control device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the related art, since the LED lamp emits light by current driving, the LED display panel may generate temperature change due to continuous heat generation of current flowing through the circuit as time goes on during the display process of the LED display panel.
In addition, as shown in fig. 1, the relationship between the relative brightness of the red, green and blue beads and the temperature is shown, specifically, the abscissa of fig. 1 is the temperature of the LED display screen, and the ordinate is the relative brightness of each bead, where the relative brightness is the ratio of the brightness value of a bead in a certain color at a certain temperature to the initial brightness of the bead. Obviously, when the temperature of the LED display screen rises, the brightness value of the red lamp bead gradually decreases, and the decreasing trend is more and more obvious along with the rise of the temperature; when the temperature of the LED display screen rises, the brightness value of the blue lamp bead gradually rises, and the rising trend is more and more obvious along with the rise of the temperature; and on the contrary, although the brightness value of the green lamp beads is reduced along with the temperature rise of the LED display screen, the reduction range is small.
Furthermore, in the display process of the LED display screen, the temperature of the LED display screen can be gradually increased, and because the brightness of the red, green and blue beads is different along with the trend of temperature change, the mixed light of the red, green and blue beads in the LED display screen is shifted in color along with the increase of the display time of the LED display screen and is no longer white, namely the white balance of the LED display screen is shifted, so that the display picture of the LED display screen can have serious color difference, and the watching effect of a user is influenced.
Therefore, how to ensure that the white balance of the LED display screen is always kept in the display process is a problem which needs to be solved urgently at present. In order to solve the technical problem, an embodiment of the invention provides a control method for an LED display screen.
The following describes a method for controlling an LED display screen according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of a method for controlling an LED display screen according to an embodiment of the present invention. Wherein the method is applied to an LED controller. The LED controller is installed on the LED display screen and used for detecting the working state of the LED display screen and configuring and adjusting various parameters of the LED display screen. The LED controller can be arranged in the LED display screen or outside the LED display screen, and the LED controller and the LED display screen are reasonable.
As shown in fig. 2, the LED display screen control method may include the steps of:
s201: acquiring the current temperature of an LED display screen controlled by an LED controller;
in the display process of the LED display screen controlled by the LED controller, the LED controller can acquire the current temperature of the LED display screen.
The LED controller may obtain the current temperature of the LED display screen in real time, or obtain the current temperature of the LED display screen every preset time according to a preset period, for example, obtain the current temperature of the LED display screen every 1 minute, or obtain the current temperature of the LED display screen every 30 seconds, etc. This is all reasonable.
Further, the LED controller can obtain the current temperature of the LED display screen by utilizing a temperature detection device existing in the LED controller; the temperature sensor can also be installed in the LED display screen in advance, and then the temperature detected by the installed temperature sensor is obtained.
Wherein, when installing temperature sensor in the LED display screen, the mode that LED controller acquireed current temperature can be: sending a temperature acquisition instruction to the temperature sensor, and further acquiring the current temperature fed back by the temperature sensor; or the current temperature automatically fed back by the temperature sensor can be directly obtained according to a preset period.
S202: determining a target current adjusting value matched with the current temperature in a preset temperature characteristic corresponding relation;
wherein, the temperature characteristic corresponding relation is as follows: regarding the corresponding relationship between the temperature values and the current adjustment values, the current adjustment value corresponding to each temperature value is: the temperature of the LED display screen is the temperature value, and when white balance is kept, the current regulating value corresponding to each color lamp bead in the LED display screen is adjusted;
after the current temperature of the LED controller is obtained, the LED controller can determine a target current adjusting value matched with the current temperature in a preset temperature characteristic corresponding relation.
Wherein, the temperature characteristic corresponding relation is the corresponding relation between the temperature value and the current adjusting value, and the current adjusting value corresponding to each temperature value is: the temperature of the LED display screen is the temperature value, and when white balance is kept, the current adjusting value corresponding to each color lamp bead in the LED display screen is adjusted.
That is, after a temperature value is determined, the current adjustment value corresponding to the temperature value can be searched in the temperature characteristic correspondence relationship. Furthermore, when the current value corresponding to each color lamp bead in the LED display screen is adjusted according to the searched current adjusting value, the mixed light of the red, green and blue lamp beads after being changed in the LED display screen can be kept to be white, namely, the LED display screen can still keep white balance at the temperature value.
It should be noted that, the temperature values included in the temperature characteristic corresponding relationship may not be continuous, and therefore, the current temperature acquired by the LED controller in the step S201 may not exist in the temperature characteristic corresponding relationship. Based on this, optionally, in a specific implementation manner, a plurality of temperature values exist in the temperature characteristic corresponding relationship, and the same temperature difference exists between any two adjacent temperature values;
in this specific implementation manner, the manner in which the LED controller executes the step S202 may include the following steps:
and determining a target temperature value with the minimum temperature difference with the current temperature in the plurality of temperature values, and determining the current regulation value corresponding to the target temperature value as a target current regulation value matched with the current temperature.
That is, in this case, the LED controller may determine, as the target temperature value, a temperature value whose temperature difference from the acquired current temperature is smallest among a plurality of temperature values included in the temperature characteristic correspondence relationship. Further, the current adjustment value corresponding to the target temperature value may be searched in the temperature characteristic correspondence relationship, and the searched current adjustment value may be determined as the target current adjustment value matching the current temperature.
Of course, when the current temperature acquired by the LED controller in the step S201 exists in the temperature characteristic correspondence relationship, the LED controller may determine the current adjustment value corresponding to the current temperature included in the temperature characteristic correspondence relationship as the target current adjustment value.
For example, the temperature values included in the temperature characteristic correspondence relationship are: 10 degrees celsius, 15 degrees celsius, 20 degrees celsius, 25 degrees celsius, 30 degrees celsius, 35 degrees celsius, 40 degrees celsius, 45 degrees celsius, 50 degrees celsius, 55 degrees celsius, and 60 degrees celsius.
Then, when the current temperature obtained by the LED controller is 21 degrees celsius, the LED controller may determine the current adjustment value corresponding to 20 degrees celsius in the temperature characteristic correspondence as the current adjustment value matching the current temperature of 21 degrees celsius.
When the current temperature obtained by the LED controller is 40 degrees celsius, the LED controller may determine the current adjustment value corresponding to 40 degrees celsius in the temperature characteristic correspondence as the current adjustment value matching the current temperature of 40 degrees celsius.
In addition, it is understood that the temperature characteristic correspondence relationship may be expressed in various ways, and the embodiment of the present invention is not particularly limited.
For example, the temperature characteristic correspondence relationship may be represented by a curve, where an abscissa of the curve may represent a temperature value and an ordinate of the curve may represent a current adjustment value corresponding to each temperature value; for another example, the temperature characteristic correspondence relationship may be identified in the form of a table, where a first row or a first column of the table indicates the temperature values, and a second row or a second column of the table indicates the current adjustment values corresponding to the respective temperature values. This is all reasonable.
Further, the embodiment of the present invention does not limit the manner of generating the temperature characteristic correspondence relationship. For clarity, the manner of generating the temperature characteristic corresponding relationship will be described in the following.
S203: and adjusting the current value corresponding to each color lamp bead in the LED display screen according to the target current adjusting value.
After determining the target current adjustment, the LED controller may adjust the current value corresponding to each color light bead in the LED display screen according to the target current adjustment value.
Therefore, after the step S203 is completed, the current value corresponding to each color lamp bead in the LED display screen can be changed, and then the brightness value of each color lamp bead in the LED display screen can be changed accordingly, so that the mixed light of the red, green and blue lamp beads after being changed in the LED display screen can be kept white, and further, the LED display screen can be kept white balance at the current temperature.
As can be seen from the above, with the adoption of the scheme provided by the embodiment of the invention, in the display process of the LED display screen, the LED controller can acquire the current temperature of the LED display screen, and determine the current adjustment value matched with the current temperature in the preset temperature characteristic corresponding relation. Furthermore, the LED controller can adjust the current value corresponding to each color light bead in the LED display screen according to the determined current adjusting value. Therefore, in the display process of the LED display screen, the LED controller can utilize the preset temperature characteristic corresponding relation to adjust the current value corresponding to each color lamp bead in the LED display screen at different temperatures, so that the LED display screen can reach white balance. Based on the scheme provided by the embodiment of the invention, in the display process of the LED display screen, no matter how the temperature of the LED display screen changes, the LED controller can ensure that the LED display screen can always keep white balance by adjusting the current value corresponding to each color lamp bead in the LED display screen.
Next, a mode of generating the temperature characteristic correspondence relationship will be described.
Optionally, in a specific implementation manner, as shown in fig. 3, the generating manner of the temperature characteristic correspondence may include the following steps:
s301: acquiring a plurality of groups of temperature characteristic data in the display process of the LED display screen,
wherein each set of temperature characteristic data comprises: the LED display screen displays a temperature value reached in the process;
the temperature characteristic corresponding relation is the corresponding relation between each temperature value and the current adjusting value corresponding to each color lamp bead in the LED display screen when the temperature of the LED display screen is the temperature value and white balance is kept. Therefore, in order to generate the temperature characteristic curve, a plurality of sets of temperature characteristic data related to the temperature of the LED display screen during the display process need to be known. And, it is apparent that each set of temperature characteristic data includes: the LED display screen displays a temperature value reached in the process.
The first group of temperature characteristic data can be acquired when the LED display screen starts to display, and then, a group of temperature characteristic data is acquired every preset time according to a preset period when the LED display screen starts to display. For example, a set of temperature characteristic data is acquired every 1 minute, or a set of temperature characteristic data is acquired every 30 seconds, or the like. This is all reasonable.
Further, the temperature value included in each set of temperature characteristic data may be obtained by using a temperature sensor pre-installed in the LED display screen, or of course, other devices may be used to obtain the temperature value. The embodiment of the present invention is not particularly limited.
S302: acquiring standard current values corresponding to temperature values included in each group of temperature characteristic data,
wherein, the standard current value corresponding to each group of temperature characteristic data is as follows: under the temperature value included in the group of temperature characteristic data, when the LED display screen reaches white balance, the current value corresponding to each color lamp bead in the LED display screen;
in order to ensure that the LED display screen can keep white balance in the display process while the brightness of each color of lamp beads of the LED display screen changes along with the temperature, the current value corresponding to each color of lamp beads in the LED display screen when the LED display screen reaches the white balance at different temperatures needs to be known.
Further, each set of temperature characteristic data obtained in step S301 includes a temperature value reached in the display process of the LED display screen, so that after obtaining multiple sets of temperature characteristic data in the display process of the LED display screen, and obtaining the temperature value included in each set of temperature characteristic data, a standard current value corresponding to the temperature value included in each set of temperature characteristic data can be obtained, that is, a current value corresponding to each color light bead in the LED display screen is obtained when the LED display screen reaches white balance at the temperature value included in each set of temperature characteristic data.
Obviously, in the display process of the LED display screen, when the temperature of the LED display screen reaches a certain temperature value, the current values corresponding to the lamp beads of each color of the LED display screen are adjusted to the standard current value corresponding to the lamp bead of the same color when the LED display screen reaches white balance, so that after the current adjustment, the mixed light of the red, green and blue lamp beads of the LED display screen is white light, that is, the LED display screen is always kept white balance.
After each group of temperature characteristic data is obtained, a standard current value corresponding to a temperature value included in the group of temperature characteristic data can be obtained; it is reasonable to obtain the standard current value corresponding to the temperature value included in each set of temperature characteristic data after obtaining all the temperature characteristic data.
S303: and generating a temperature characteristic corresponding relation based on the plurality of groups of temperature characteristic data and the standard current value corresponding to each group of temperature characteristic data.
After the standard current values corresponding to the temperature values included in the multiple groups of temperature characteristic data and each group of temperature characteristic data in the display process of the LED display screen are obtained, the temperature characteristic corresponding relation can be generated based on the multiple groups of temperature characteristic data and the standard current values corresponding to each group of temperature characteristic data.
When each set of temperature characteristic data includes different contents, the execution manner of step S303 may also be different, and the embodiment of the present invention is not limited in particular.
In addition, it is reasonable that the temperature characteristic correspondence relationship may be generated in the LED controller, or may be generated in another electronic device communicatively connected to the LED controller and transmitted to the LED controller.
Optionally, in a specific implementation manner, each set of temperature characteristic data may further include: under the temperature value included in the group of temperature characteristic data, the actual current value corresponding to each color lamp bead in the LED display screen;
furthermore, in this specific implementation manner, the execution manner of step S303 includes the following steps:
step 1: calculating the difference value between the standard current value and the actual current value corresponding to each color lamp bead in the LED display screen under the temperature value included in each group of temperature characteristic data as the current regulation value corresponding to the temperature value included in each group of temperature characteristic data;
step 2: generating a corresponding relation between a temperature value included in each group of temperature characteristic data and the calculated current regulation value as a temperature characteristic corresponding relation for each group of temperature characteristic data;
in this specific implementation manner, after acquiring each group of temperature characteristic data and the standard current value corresponding to the temperature value included in each group of temperature characteristic data, the difference between the standard current value corresponding to each color light bead in the LED display screen and the actual current value at the temperature value included in the group of temperature characteristic data is calculated for each group of temperature characteristic data, and then the calculated difference is used as the current adjustment value corresponding to the temperature value included in the group of temperature characteristic data.
The calculated difference value is signed, that is, for each group of temperature characteristic data, when the standard current value corresponding to each color light bead in the LED display screen is greater than the actual current value at the temperature value included in the group of temperature characteristic data, the calculated difference value is a positive number and has a sign "+"; on the contrary, when the standard current value corresponding to each color light bead in the LED display screen is smaller than the actual current value at the temperature value included in the set of temperature characteristic data, the difference value is calculated to be a negative number and has a sign "-".
Further, in this specific implementation manner, in step S102, the determined target current adjustment value matched with the current temperature is a difference between a standard current value and an actual current value corresponding to each color light bead in the LED display screen at the current temperature. Based on this, the LED controller executing the above step S103 may adjust the current value corresponding to each color light bead in the LED display screen according to the target current adjustment value, which includes the following steps:
and aiming at each color lamp bead in the LED display screen, taking the current regulating value corresponding to the color lamp bead in the target current regulating value as the current regulating quantity of the color lamp bead, and regulating the actual current value of the color lamp bead.
Obviously, in order to maintain the white balance of the LED display screen at the current temperature, the actual current value corresponding to each color light bead in the LED display screen at the current temperature needs to be adjusted to the standard current value corresponding to each color light bead in the LED display screen at the current temperature. The determined target current adjusting value is a difference value between a standard current value and an actual current value corresponding to each color lamp bead in the LED display screen at the current temperature, so that the current adjusting value corresponding to the color lamp bead in the target current adjusting value can be used as a current adjusting quantity of the color lamp bead to adjust the actual current value of the color lamp bead for each color lamp bead in the LED display screen.
For each color lamp bead in the LED display screen, the absolute value of the current adjustment value corresponding to the color lamp bead in the target current adjustment value represents the adjustment step length of the actual current value of the color lamp bead, for example, if the current adjustment value corresponding to the red lamp bead in the target current adjustment value is a amperes, the actual current value representing the red lamp bead needs to be adjusted by a amperes; further, a symbol of the current adjustment value corresponding to the color lamp bead in the target current adjustment value represents an adjustment direction of an actual current value of the color lamp bead, for example, if a symbol of the current adjustment value corresponding to the red lamp bead in the target current adjustment value is "+", it indicates that a standard current value corresponding to the red lamp bead is greater than the actual current value, and therefore the actual current value of the red lamp bead needs to be increased.
Optionally, fig. 4 is a schematic diagram of device interaction in a generation manner of a temperature characteristic correspondence relationship.
In the generation manner of the temperature characteristic corresponding relationship corresponding to fig. 4, each set of temperature characteristic data includes a temperature value reached in the display process of the LED display screen and an actual current value corresponding to each color light bead in the LED display screen at the temperature value included in the set of temperature characteristic data.
As shown in fig. 4, 1 is an LED display screen, 2 is a temperature sensor installed in the LED display screen, 3 is a multifunctional luminance meter, 4 is a computer, and 5 is an LED controller. In the manner of generating the temperature characteristic corresponding relationship corresponding to fig. 4, the interaction relationship of each device is specifically:
the computer 4 stores a standard color temperature value of each color bead in the LED display screen when the LED display screen reaches white balance at each temperature, which is set in advance according to a uniform white balance standard.
Furthermore, in the display process of the LED display screen, after receiving the user specification, the computer 4 may send a first temperature obtaining request to the LED controller 5 in real time or according to a preset period, and send a color temperature value obtaining request of the LED display screen to the multifunctional luminance meter 3.
Thus, the LED controller 5 can send a second temperature acquisition request to the temperature sensor 2 after receiving the first temperature acquisition request.
After receiving the second temperature obtaining request, the temperature sensor 2 may send the detected temperature of the LED display screen at the current time to the LED controller 5, so that the LED controller 5 sends the temperature to the computer 4 after receiving the temperature.
And when receiving the color temperature value acquisition request, the multifunctional luminance meter can acquire the actual color temperature value of each color lamp bead in the LED display screen at the current moment and feed back the acquired actual color temperature value of each color lamp bead to the computer 4.
In this way, the computer 4 may determine, in the standard color temperature values of each color bead in the LED display screen at the current time, the standard color temperature value of each color bead in the LED display screen at the temperature of the LED display screen when the LED display screen reaches the white balance at each stored temperature. Further, the computer 4 may calculate a current adjustment value required to adjust the actual color temperature value of each color bead of the LED display screen to the standard color temperature value of each color bead of the LED display screen based on the determined standard color temperature value of each color bead of the LED display screen and the received actual color temperature value of each color bead of the LED display screen at the current time, and send the calculated current adjustment value to the LED controller 5, so that the LED controller 5 adjusts the actual color temperature value corresponding to each color bead of the LED display screen according to the current adjustment value.
Therefore, after the above processes are repeatedly executed for many times, when the error between the actual color temperature value of each color lamp bead and the preset standard color temperature value of each color lamp bead is smaller than the preset error threshold value at the temperature of the LED display screen at the current moment, the actual current value corresponding to each color lamp bead in the LED display screen is recorded.
Based on the temperature value, the temperature value reached in the display process of the LED display screen and each group of temperature characteristic corresponding relation of the actual current value corresponding to each color lamp bead in the LED display screen under the temperature value included in the group of temperature characteristic data are included.
Optionally, in another specific implementation manner, each set of temperature characteristic data may include only one temperature value reached in the display process of the LED display screen;
furthermore, in this specific implementation manner, the execution manner of step S303 may include the following steps:
for each group of temperature characteristic data, determining a standard current value corresponding to the temperature included in the group of temperature characteristic data as a current regulation value, and generating a corresponding relation between a temperature value included in the group of temperature characteristic data and the determined current regulation value as a temperature characteristic corresponding relation;
further, in this specific implementation manner, in the step S102, the determined target current adjustment value is a standard current value corresponding to the temperature included in the set of temperature characteristic data, where the standard current value is a current value corresponding to each color of lamp beads when the LED display screen reaches white balance at the current temperature. Based on this, the LED controller executing the above step S103 may adjust the current value corresponding to each color light bead in the LED display screen according to the target current adjustment value, which includes the following steps:
and aiming at each color lamp bead in the LED display screen, adjusting the actual current value corresponding to the color lamp bead to the current adjusting value corresponding to the color lamp bead in the target current adjusting value.
Obviously, in order to maintain the white balance of the LED display screen at the current temperature, the actual current value corresponding to each color light bead in the LED display screen at the current temperature needs to be adjusted to the standard current value corresponding to each color light bead in the LED display screen at the current temperature. The determined target current adjusting value is a standard current value corresponding to each color lamp bead in the LED display screen at the current temperature, so that the actual current value corresponding to each color lamp bead in the LED display screen can be directly adjusted to the current adjusting value corresponding to the color lamp bead in the target current adjusting value.
Corresponding to the method for controlling the LED display screen provided by the embodiment of the invention, the embodiment of the invention also provides a device for controlling the LED display screen.
Fig. 5 is a schematic structural diagram of an LED display screen control device according to an embodiment of the present invention. Wherein, the device is applied to the LED controller. As shown in fig. 5, the apparatus may include the following modules:
a temperature obtaining module 510, configured to obtain a current temperature of an LED display screen controlled by an LED controller;
an adjustment value determining module 520, configured to determine a target current adjustment value matched with the current temperature in a preset temperature characteristic corresponding relationship; wherein, the temperature characteristic corresponding relation is as follows: the corresponding relation generation module generates a corresponding relation between the temperature values and the current regulation values, and the current regulation value corresponding to each temperature value is as follows: the temperature of the LED display screen is the temperature value, and when white balance is kept, the current regulating value corresponding to each color lamp bead in the LED display screen is adjusted;
and the current adjusting module 530 is configured to adjust a current value corresponding to each color light bead in the LED display screen according to the target current adjusting value.
As can be seen from the above, with the adoption of the scheme provided by the embodiment of the invention, in the display process of the LED display screen, the LED controller can acquire the current temperature of the LED display screen, and determine the current adjustment value matched with the current temperature in the preset temperature characteristic corresponding relation. Furthermore, the LED controller can adjust the current value corresponding to each color light bead in the LED display screen according to the determined current adjusting value. Therefore, in the display process of the LED display screen, the LED controller can utilize the preset temperature characteristic corresponding relation to adjust the current value corresponding to each color lamp bead in the LED display screen at different temperatures, so that the LED display screen can reach white balance. Based on the scheme provided by the embodiment of the invention, in the display process of the LED display screen, no matter how the temperature of the LED display screen changes, the LED controller can ensure that the LED display screen can always keep white balance by adjusting the current value corresponding to each color lamp bead in the LED display screen.
Optionally, in a specific implementation manner, a plurality of temperature values may exist in the temperature characteristic correspondence, and the same temperature difference exists between any two adjacent temperature values;
the adjustment value determination module 520 may be specifically configured to:
and determining a target temperature value with the minimum temperature difference with the current temperature in the plurality of temperature values, and determining the current regulation value corresponding to the target temperature value as a target current regulation value matched with the current temperature.
Optionally, in a specific implementation manner, the correspondence generating module may include:
the data acquisition submodule is used for acquiring multiple groups of temperature characteristic data in the display process of the LED display screen, wherein each group of temperature characteristic data comprises: the LED display screen displays a temperature value reached in the process;
the standard value obtaining submodule is used for obtaining a standard current value corresponding to a temperature value included in each group of temperature characteristic data, wherein the standard current value corresponding to each group of temperature characteristic data is as follows: under the temperature value included in the group of temperature characteristic data, when the LED display screen reaches white balance, the current value corresponding to each color lamp bead in the LED display screen;
and the relation generation submodule is used for generating a temperature characteristic corresponding relation based on the plurality of groups of temperature characteristic data and the standard current value corresponding to each group of temperature characteristic data.
Optionally, in a specific implementation manner, each set of temperature characteristic data may further include: under the temperature value included in the group of temperature characteristic data, the actual current value corresponding to each color lamp bead in the LED display screen; in this specific implementation manner, the relationship generation submodule may be specifically configured to:
calculating the difference value between the standard current value and the actual current value corresponding to each color lamp bead in the LED display screen under the temperature value included in each group of temperature characteristic data as the current regulation value corresponding to the temperature value included in each group of temperature characteristic data; generating a corresponding relation between a temperature value included in each group of temperature characteristic data and the calculated current regulation value as a temperature characteristic corresponding relation for each group of temperature characteristic data;
furthermore, the current adjusting module 530 may be specifically configured to:
and aiming at each color lamp bead in the LED display screen, taking the current regulating value corresponding to the color lamp bead in the target current regulating value as the current regulating quantity of the color lamp bead, and regulating the actual current value of the color lamp bead.
Optionally, in a specific implementation manner, the relationship generation submodule may be specifically configured to:
for each group of temperature characteristic data, determining a standard current value corresponding to the temperature included in the group of temperature characteristic data as a current regulation value, and generating a corresponding relation between a temperature value included in the group of temperature characteristic data and the determined current regulation value as a temperature characteristic corresponding relation;
furthermore, the current adjusting module 530 is specifically configured to:
and aiming at each color lamp bead in the LED display screen, adjusting the actual current value corresponding to the color lamp bead to the current adjusting value corresponding to the color lamp bead in the target current adjusting value.
The embodiment of the invention also provides electronic equipment, which comprises an LED controller and an LED display screen, wherein the LED controller is used for controlling the current value corresponding to each color lamp bead in the LED display screen; as shown in fig. 6, the electronic device comprises a processor 601, a communication interface 602, a memory 603 and a communication bus 604, wherein the processor 601, the communication interface 602 and the memory 603 communicate with each other via the communication bus 604,
a memory 603 for storing a computer program;
the processor 601 is configured to implement the method for controlling the LED display screen according to the embodiment of the present invention when executing the program stored in the memory 603.
Specifically, the control method of the LED display screen is applied to the LED controller, and the method includes:
acquiring the current temperature of an LED display screen controlled by an LED controller;
determining a target current adjusting value matched with the current temperature in a preset temperature characteristic corresponding relation; wherein, the temperature characteristic corresponding relation is as follows: regarding the corresponding relationship between the temperature values and the current adjustment values, the current adjustment value corresponding to each temperature value is: the temperature of the LED display screen is the temperature value, and when white balance is kept, the current regulating value corresponding to each color lamp bead in the LED display screen is adjusted;
and adjusting the current value corresponding to each color lamp bead in the LED display screen according to the target current adjusting value.
It should be noted that other implementation manners of the LED display screen control method implemented by the processor 601 executing the program stored in the memory 603 are the same as the LED display screen control method provided in the foregoing method embodiment, and are not described herein again.
As can be seen from the above, with the adoption of the scheme provided by the embodiment of the invention, in the display process of the LED display screen, the LED controller can acquire the current temperature of the LED display screen, and determine the current adjustment value matched with the current temperature in the preset temperature characteristic corresponding relation. Furthermore, the LED controller can adjust the current value corresponding to each color light bead in the LED display screen according to the determined current adjusting value. Therefore, in the display process of the LED display screen, the LED controller can utilize the preset temperature characteristic corresponding relation to adjust the current value corresponding to each color lamp bead in the LED display screen at different temperatures, so that the LED display screen can reach white balance. Based on the scheme provided by the embodiment of the invention, in the display process of the LED display screen, no matter how the temperature of the LED display screen changes, the LED controller can ensure that the LED display screen can always keep white balance by adjusting the current value corresponding to each color lamp bead in the LED display screen.
The communication bus mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface is used for communication between the electronic equipment and other equipment.
The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.
Corresponding to the LED display screen control method provided in the embodiments of the present invention, the embodiments of the present invention further provide a computer readable storage medium, and the computer program is executed by a processor to implement the LED display screen control method provided in the embodiments of the present invention.
Specifically, the control method of the LED display screen is applied to the LED controller, and the method includes:
acquiring the current temperature of an LED display screen controlled by an LED controller;
determining a target current adjusting value matched with the current temperature in a preset temperature characteristic corresponding relation; wherein, the temperature characteristic corresponding relation is as follows: regarding the corresponding relationship between the temperature values and the current adjustment values, the current adjustment value corresponding to each temperature value is: the temperature of the LED display screen is the temperature value, and when white balance is kept, the current regulating value corresponding to each color lamp bead in the LED display screen is adjusted;
and adjusting the current value corresponding to each color lamp bead in the LED display screen according to the target current adjusting value.
It should be noted that other implementation manners of the LED display screen control method implemented when the computer program is executed by the processor are the same as the LED display screen control method provided in the foregoing method embodiment, and are not described herein again.
As can be seen from the above, with the adoption of the scheme provided by the embodiment of the invention, in the display process of the LED display screen, the LED controller can acquire the current temperature of the LED display screen, and determine the current adjustment value matched with the current temperature in the preset temperature characteristic corresponding relation. Furthermore, the LED controller can adjust the current value corresponding to each color light bead in the LED display screen according to the determined current adjusting value. Therefore, in the display process of the LED display screen, the LED controller can utilize the preset temperature characteristic corresponding relation to adjust the current value corresponding to each color lamp bead in the LED display screen at different temperatures, so that the LED display screen can reach white balance. Based on the scheme provided by the embodiment of the invention, in the display process of the LED display screen, no matter how the temperature of the LED display screen changes, the LED controller can ensure that the LED display screen can always keep white balance by adjusting the current value corresponding to each color lamp bead in the LED display screen.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the apparatus embodiment, the electronic device embodiment and the computer-readable storage medium embodiment, since they are substantially similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (12)

1. A control method of an LED display screen is applied to an LED controller of a light emitting diode, and comprises the following steps:
acquiring the current temperature of an LED display screen controlled by the LED controller;
determining a target current adjusting value matched with the current temperature in a preset temperature characteristic corresponding relation; wherein, the temperature characteristic corresponding relation is as follows: regarding the corresponding relationship between the temperature values and the current adjustment values, the current adjustment value corresponding to each temperature value is: the temperature of the LED display screen is the temperature value, and when white balance is kept, the current regulating value corresponding to each color lamp bead in the LED display screen is obtained;
and adjusting the current value corresponding to each color lamp bead in the LED display screen according to the target current adjusting value.
2. The method according to claim 1, wherein the temperature characteristic corresponding relationship includes a plurality of temperature values, and the same temperature difference exists between any two adjacent temperature values;
the step of determining a target current adjustment value matched with the current temperature in a preset temperature characteristic corresponding relationship includes:
and determining a target temperature value with the minimum temperature difference with the current temperature in the plurality of temperature values, and determining the current regulation value corresponding to the target temperature value as a target current regulation value matched with the current temperature.
3. The method according to claim 1, wherein the temperature characteristic correspondence is generated in a manner that includes:
acquiring multiple groups of temperature characteristic data in the display process of the LED display screen, wherein each group of temperature characteristic data comprises: the LED display screen displays a temperature value reached in the process;
acquiring a standard current value corresponding to a temperature value included in each group of temperature characteristic data, wherein the standard current value corresponding to each group of temperature characteristic data is as follows: under the temperature value included in the group of temperature characteristic data, when the LED display screen reaches white balance, the current value corresponding to each color lamp bead in the LED display screen;
and generating the temperature characteristic corresponding relation based on the plurality of groups of temperature characteristic data and the standard current value corresponding to each group of temperature characteristic data.
4. The method of claim 3, wherein each set of temperature characteristic data further comprises: under the temperature value included in the group of temperature characteristic data, the actual current value corresponding to each color light bead in the LED display screen;
the step of generating the temperature characteristic corresponding relationship based on the plurality of sets of temperature characteristic data and the standard current value corresponding to each set of temperature characteristic data includes:
calculating a difference value between a standard current value and an actual current value corresponding to each color lamp bead in the LED display screen under a temperature value included in each group of temperature characteristic data as a current regulation value corresponding to the temperature value included in the group of temperature characteristic data;
generating a corresponding relation between a temperature value included in each group of temperature characteristic data and the calculated current regulation value as a temperature characteristic corresponding relation for each group of temperature characteristic data;
the step of adjusting the current value corresponding to each color light bead in the LED display screen according to the target current adjustment value comprises the following steps:
and aiming at each color lamp bead in the LED display screen, taking the current regulating value corresponding to the color lamp bead in the target current regulating value as the current regulating quantity of the color lamp bead, and regulating the actual current value of the color lamp bead.
5. The method according to claim 3, wherein the step of generating the temperature characteristic correspondence relationship based on the plurality of sets of temperature characteristic data and the standard current value corresponding to each set of temperature characteristic data includes:
for each group of temperature characteristic data, determining a standard current value corresponding to the temperature included in the group of temperature characteristic data as a current regulation value, and generating a corresponding relation between a temperature value included in the group of temperature characteristic data and the determined current regulation value as a temperature characteristic corresponding relation;
the step of adjusting the current value corresponding to each color light bead in the LED display screen according to the target current adjustment value comprises the following steps:
and aiming at each color lamp bead in the LED display screen, adjusting the actual current value corresponding to the color lamp bead to the current adjusting value corresponding to the color lamp bead in the target current adjusting value.
6. The LED display screen control device is applied to a light-emitting diode (LED) controller, and comprises:
the temperature acquisition module is used for acquiring the current temperature of the LED display screen controlled by the LED controller;
the adjusting value determining module is used for determining a target current adjusting value matched with the current temperature in a preset temperature characteristic corresponding relation; wherein, the temperature characteristic corresponding relation is as follows: the corresponding relation generation module generates a corresponding relation between the temperature values and the current regulation values, and the current regulation value corresponding to each temperature value is as follows: the temperature of the LED display screen is the temperature value, and when white balance is kept, the current regulating value corresponding to each color lamp bead in the LED display screen is obtained;
and the current adjusting module is used for adjusting the current value corresponding to each color lamp bead in the LED display screen according to the target current adjusting value.
7. The apparatus according to claim 6, wherein the temperature characteristic correspondence relationship has a plurality of temperature values, and the same temperature difference exists between any two adjacent temperature values;
the adjustment value determination module is specifically configured to:
and determining a target temperature value with the minimum temperature difference with the current temperature in the plurality of temperature values, and determining the current regulation value corresponding to the target temperature value as a target current regulation value matched with the current temperature.
8. The apparatus of claim 6, wherein the correspondence generating module comprises:
the data acquisition submodule is used for acquiring a plurality of groups of temperature characteristic data in the display process of the LED display screen, wherein each group of temperature characteristic data comprises: the LED display screen displays a temperature value reached in the process;
the standard value obtaining submodule is used for obtaining a standard current value corresponding to a temperature value included in each group of temperature characteristic data, wherein the standard current value corresponding to each group of temperature characteristic data is as follows: under the temperature value included in the group of temperature characteristic data, when the LED display screen reaches white balance, the current value corresponding to each color lamp bead in the LED display screen;
and the relation generation submodule is used for generating the temperature characteristic corresponding relation based on the plurality of groups of temperature characteristic data and the standard current value corresponding to each group of temperature characteristic data.
9. The apparatus of claim 8, wherein each set of temperature characteristic data further comprises: under the temperature value included in the group of temperature characteristic data, the actual current value corresponding to each color light bead in the LED display screen;
the relationship generation submodule is specifically configured to:
calculating a difference value between a standard current value and an actual current value corresponding to each color lamp bead in the LED display screen under a temperature value included in each group of temperature characteristic data as a current regulation value corresponding to the temperature value included in the group of temperature characteristic data; generating a corresponding relation between a temperature value included in each group of temperature characteristic data and the calculated current regulation value as a temperature characteristic corresponding relation for each group of temperature characteristic data;
the current regulation module is specifically configured to:
and aiming at each color lamp bead in the LED display screen, taking the current regulating value corresponding to the color lamp bead in the target current regulating value as the current regulating quantity of the color lamp bead, and regulating the actual current value of the color lamp bead.
10. The apparatus of claim 8,
the relationship generation submodule is specifically configured to:
for each group of temperature characteristic data, determining a standard current value corresponding to the temperature included in the group of temperature characteristic data as a current regulation value, and generating a corresponding relation between a temperature value included in the group of temperature characteristic data and the determined current regulation value as a temperature characteristic corresponding relation;
the current regulation module is specifically configured to:
and aiming at each color lamp bead in the LED display screen, adjusting the actual current value corresponding to the color lamp bead to the current adjusting value corresponding to the color lamp bead in the target current adjusting value.
11. The electronic equipment is characterized by comprising an LED display screen and an LED controller, wherein the LED controller is used for controlling the current value corresponding to each color lamp bead in the LED display screen; the system comprises a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for finishing mutual communication through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps of any one of claims 1 to 5 when executing a program stored in the memory.
12. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which computer program, when being executed by a processor, carries out the method steps of any one of the claims 1-5.
CN201910979012.6A 2019-10-15 2019-10-15 LED display screen control method and device Pending CN112735324A (en)

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