CN115424577B - LED uniform light emitting control method and system based on full-color intelligent controller - Google Patents
LED uniform light emitting control method and system based on full-color intelligent controller Download PDFInfo
- Publication number
- CN115424577B CN115424577B CN202211365812.7A CN202211365812A CN115424577B CN 115424577 B CN115424577 B CN 115424577B CN 202211365812 A CN202211365812 A CN 202211365812A CN 115424577 B CN115424577 B CN 115424577B
- Authority
- CN
- China
- Prior art keywords
- power
- color
- array
- pure
- difference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention relates to the technical field of display control, in particular to a method and a system for controlling uniform light emitting of an LED (light emitting diode) based on a full-color intelligent controller, which comprises the following steps: controlling each array to display pure colors through a driving chip, wherein the pure colors comprise red, green and blue; determining the corresponding relation between the color value of each pure color and the power required by each array, and establishing a color value power relation graph; acquiring a target image, and calculating theoretical display power of each array according to the color value power relation graph and the color value of each pixel point of the target image; acquiring the actual input power of each array, calculating the difference between the actual input power of each array and the theoretical display power, and recording as a power difference; and adjusting the pure color values in the arrays in an equal proportion according to the power difference of each array so as to enable each array to emit light uniformly. The invention determines the power corresponding to the color value by establishing a color value power relation graph, and adjusts the color value by calculating the difference between the theoretical power and the actual power, thereby achieving the effect of making up the color rendering deviation and enabling the array color rendering to be uniform.
Description
Technical Field
The invention particularly relates to the technical field of display control, in particular to a method and a system for controlling uniform light emission of an LED (light emitting diode) based on a full-color intelligent controller.
Background
The LED display screen is a device which is formed by an LED device array and is used for displaying data such as characters, images, videos and the like through a certain control mode. The full-color LED display screen is a display screen which displays multiple colors by utilizing different proportions of three colors of pure red, pure green and pure blue on the basis of the traditional LED display screen. Each luminous point of the full-color LED display screen comprises gray scales of various primary colors, 16777216 colors can be formed, and the picture is bright and natural.
The full-color LED display screen is mainly controlled by a full-color controller, and the full-color controller indirectly controls color development of each LED array by controlling the LED driving chip. For LED full-color display screens with specific display contents in a certain period, such as advertising screens and the like, as the color display contents of the LED arrays are relatively fixed, the working time of diodes of a certain color in each LED array is far longer than that of diodes of other colors, so that the diodes of the same color in different LED arrays have different brightness or color values under the same power, and the visual perception of people is that the brightness of displayed pictures is not uniform, or when the diodes of the color participate in color mixing, the mixed color and the input color have deviation.
The problem to be solved is how to make the full-color LED display screen more uniformly color without changing hardware.
Disclosure of Invention
In view of the above, it is necessary to provide a method for controlling LED uniform light emission based on a full-color intelligent controller.
The embodiment of the invention is realized in such a way that an LED uniform light-emitting control method based on a full-color intelligent controller comprises the following steps:
controlling each array to display pure colors through a driving chip, wherein the pure colors comprise red, green and blue;
determining the corresponding relation between the color value of each pure color and the power required by each array, and establishing a color value power relation graph;
acquiring a target image, and calculating theoretical display power of each array according to the color value power relation diagram and the color value of each pixel point of the target image;
acquiring the actual input power of each array, calculating the difference between the actual input power of each array and the theoretical display power, and recording as a power difference;
and adjusting the pure color values in the arrays in an equal proportion according to the power difference of each array so as to enable each array to emit light uniformly.
In one embodiment, the present invention provides an LED uniform light emission control system based on a full-color intelligent controller, including:
the input end of each driving chip is connected with the LED arrays; and
and the full-color intelligent controller is respectively connected with the driving chip and is used for executing the LED uniform light-emitting control method based on the full-color intelligent controller.
The invention determines the power corresponding to the color value by establishing a color value power relation graph, calculates the difference between the theoretical power and the actual power, and adjusts the color value according to the calculated difference, thereby achieving the effect of making up the color rendering deviation and enabling the array color rendering to be uniform. The invention solves the problem that the color development of diode hardware can not reach the theoretical value due to aging, loss and the like when in use, and ensures that the color development of the whole picture is more uniform.
Drawings
FIG. 1 is a flow chart of a method for controlling uniform light emission of an LED based on a full-color intelligent controller according to an embodiment;
FIG. 2 is a block diagram of an LED uniform light emission control system based on a full-color intelligent controller according to an embodiment;
fig. 3 is a block diagram of an internal structure of the full-color intelligent controller in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements should not be limited by these terms unless otherwise specified. These terms are only used to distinguish one element from another. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script, without departing from the scope of the present disclosure.
As shown in fig. 1, in an embodiment, a method for controlling uniform light emission of an LED based on a full-color intelligent controller is provided, which specifically includes the following steps:
step S100, controlling each array to display pure colors through a driving chip, wherein the pure colors comprise red, green and blue;
s200, determining the corresponding relation between the color value of each pure color and the power required by each array, and establishing a color value power relation graph;
step S300, acquiring a target image, and calculating theoretical display power of each array according to the color value power relation diagram and the color value of each pixel point of the target image;
step S400, acquiring the actual input power of each array, calculating the difference between the actual input power and the theoretical display power of each array, and recording the difference as a power difference;
and S500, adjusting the pure color values in the arrays in an equal proportion according to the power difference of each array so as to enable each array to emit light uniformly.
In this embodiment, the driving chip controls each array to display a pure color, which means that the LED driving chip inputs a control signal to control each array to display a pure color, where the pure color includes three colors, and the three colors are sequentially displayed as red, green, and blue. In this embodiment, it should be noted that the array here refers to an LED array, each LED array is composed of a plurality of pixel points, each pixel point includes three diodes of red, green, and blue, each diode of each pixel point can be individually controlled, and the degree of color rendering (divided into 256 levels from 0 to 255) can be controlled, and the final color of each pixel point is obtained by mixing the colors displayed by the diodes of the three colors of each pixel point.
In this embodiment, the corresponding relationship between the color value of each pure color and the power required by each array is determined, that is, the power required for each pure color is determined, wherein each pure color comprises 256 values from 0 to 255, and the color is darker as the value is higher.
In this embodiment, the actual input power of each array is obtained, the calculated actual input power is compared with the power required to display the image theory, and each pure color value is adjusted according to the difference between the calculated actual input power and the power required to display the image theory. It should be understood that, here, adjusting each pure color value means independently adjusting the color value of the diode of each color, and the adjusted diode color mixing display obtains the final image.
The invention determines the power corresponding to the color value by establishing a color value power relation graph, calculates the difference between the theoretical power and the actual power, and adjusts the color value according to the calculated difference, thereby achieving the effect of making up the color rendering deviation and enabling the array color rendering to be uniform. The invention solves the problem that the color development of diode hardware can not reach the theoretical value due to aging, loss and the like when in use, and ensures that the color development of the whole picture is more uniform.
In an embodiment of the present invention, the controlling each array to display a pure color by a driving chip includes:
outputting a driving signal to enable the driving chip to output a switching signal to the corresponding array to enable the corresponding array to display pure color;
the switching signals are divided into three groups which respectively correspond to red, green and blue, each group of switching signals consists of 256 data packets, and each data packet consists of
And data composition, wherein n is the number of diodes corresponding to each color of each array, and i is the number of lit diodes.
In this embodiment, the driving signal is a signal for controlling the driving chip to operate, the driving chip analyzes the control signal to output a switching signal, and the switching signal is a signal for controlling the three diodes in each pixel to be turned on or off and the "degree of turning on" (by controlling the magnitude of the input voltage or current, the brightness of the color development is controlled). In this embodiment, for each array, the switch signals are divided into three groups, each group corresponds to red, green and blue, each group is composed of 256 outer data packets, and each pure color value corresponds to 0 to 255 according to the sequence number of the data packet from small to large. Each data packet is composed of
Each data element corresponds to the total number of all different combinations of i diodes lit under the same array. The processing mode carries out integral analysis by the whole array, and can avoid the problem that the color value of a certain diode of a single pixel point cannot be adjusted improperly in the later period due to the fact that the certain diode cannot work normally. For example, for an array composed of 3 pixels, for any pure color, when i =2, 3 packets correspond to three combinations of pixel 1+ pixel 2, pixel 3+ pixel 2, and pixel 1+ pixel 3, respectively.
In one embodiment of the invention, the corresponding relation between the color value of each pure color and the required power of each array is determined, and a color value power relation graph is established, which comprises the following steps:
for each m value of each array, obtain each pure color
Calculating the average power of each data under each pure color to obtain the required power corresponding to the color value m under the corresponding pure color;
increasing m from 0 to 255, repeating the previous step to obtain the required power corresponding to each color value of each pure color, and establishing a color value power relation graph according to the corresponding relation between the color values and the required power;
wherein m is an integer from 0 to 255.
In the present embodiment, m takes a value at which to calculate
Total power of different lighting modes, total power calculated and total number of diodes lighted
The ratio of (a) to (b) yields the required power of the individual diode corresponding to the pure color lower color value m. The required power calculation provided by the embodiment blurs the working condition difference of a specific single diode, so that the color value adjustment in the later period is more gradual, the problem that the diodes of partial pixels are brighter or darker due to adjustment is avoided, and the problem of aggravated uneven display is avoided.
In an embodiment of the present invention, calculating theoretical display power of each array according to the color values of each pixel point of the target image according to the color value power relationship diagram includes:
partitioning the target image according to a display area, wherein each partition corresponds to one array;
acquiring the color value of each pixel point of each partition, and extracting the pure color value of each pixel point;
searching required power corresponding to the pure color values of all the pixel points according to the color value power relation graph, and calculating the total power of each pure color value of each subarea;
and calculating the sum of the total power of the three pure color values to obtain the theoretical display power of each array.
In this embodiment, the target image is partitioned according to the display area, for example, the display area is composed of 10 groups of arrays in the horizontal direction and 8 groups of arrays in the vertical direction, and the target image is correspondingly partitioned into 10 × 8 partitions, and each partition corresponds to one array.
In this embodiment, each pixel is colored by three diodes, so that the respective color values of the three diodes of each pixel can be obtained, the total power of each pure color value of each partition is equal to the sum of the powers of all the diodes corresponding to the pure color of the partition, and the power of each diode is determined by searching the color value power relation diagram through the color value of the diode. And obtaining the theoretical display power of the array according to the sum of the powers corresponding to all the diode color values of all the pixel points of each partition.
In an embodiment of the present invention, acquiring the actual input power of each array, calculating the difference between the actual input power and the theoretical display power of each array, and recording the difference as a power difference, includes:
displaying the acquired target image in a partition manner;
acquiring the actual input power of each partition;
and subtracting the theoretical display power from the actual input power to obtain a power difference.
In this embodiment, the partition manner refers to the foregoing embodiment, and this embodiment will not be described again. The actual power of each partition can be calculated from the supply voltage and supply current of each array. In this embodiment, the theoretical display power is subtracted from the actual power to obtain a power difference, the power difference may be positive or negative, the power difference is positive, the actual input power is greater than the theoretical display power, and at this time, the color value needs to be reduced; otherwise, the voltage needs to be increased.
In one embodiment of the present invention, the adjusting the pure color values in the arrays in equal proportion according to the power difference of each array to make each array emit light uniformly comprises:
for each partition, distributing the power difference according to the proportion of the sum of the total powers corresponding to each pure color value;
and adjusting the color value of each pure color according to the distribution result.
In this embodiment, for example, in a certain partition, the total power of the red, green and blue diodes is 50mw,20mw and 30mw, and the ratio is 5:2: and 3, if the power difference is 10 mW, the adjusted power distributed by the red, green and blue diodes is 5mW, 2mW and 3mW.
In one embodiment of the invention, adjusting the color value of each pure color according to the division result comprises:
calculating the power difference distributed to each pure color;
calculating the ratio of the distributed power difference to the original input total power of the pure color;
and increasing or decreasing the color value of the pure color corresponding to each pixel of the corresponding partition according to the ratio value such as the calculated ratio.
In this embodiment, taking the red color in the above embodiment as an example, if the allocated adjustment power 5mW is 1/10 of the total power 50mW of the original pure color, then the color value of the red diode in each pixel point needs to be reduced to 9/10 of the original color value in equal proportion, and the adjusted color value is rounded. The other two solid colors and so on.
In one embodiment of the present invention, the adjusting the pure color values in the arrays in equal proportion according to the power difference of each array to make each array emit light uniformly comprises:
acquiring power difference of each array, and calculating a mean value of the power difference;
calculating the difference between the power difference of each array and the mean value of the power differences, and recording as an adjustment difference;
for each partition, distributing the power difference according to the proportion of the sum of the total power corresponding to each pure color value;
and adjusting the color value of each pure color according to the distribution result.
In this embodiment, the difference from the first two embodiments is that the adjustment difference of the array is determined by the difference between the power difference of the array and the mean value of the power difference, and the distribution method is the same as that of the first two embodiments.
In this embodiment, by this arrangement, each partition does not need to be adjusted to a fixed brightness level, but to a dynamic brightness level determined by the overall brightness of each array, the amount of adjustment of a single array can be reduced, and the method is suitable for display devices that are used for a long time and have large differences in the degree of wear of each array.
In one embodiment of the present invention, adjusting the color value of each pure color according to the division result includes:
calculating the adjustment difference distributed to each pure color;
calculating the ratio of the distributed adjustment difference to the original input total power of the pure color;
and increasing or decreasing the color value of the pure color corresponding to each pixel of the corresponding partition according to the ratio value such as the calculated ratio.
In the present embodiment, for a specific method of adjusting each pure color value according to the division result, reference may be made to the description of the foregoing related embodiment, which differs only in that the adjustment difference is used instead of the power difference.
As shown in fig. 2, an embodiment of the present invention further provides an LED uniform light emission control system based on a full-color intelligent controller, where the LED uniform light emission control system based on the full-color intelligent controller includes:
the input end of each driving chip is connected with the LED arrays; and
and the full-color intelligent controllers are respectively connected with the driving chips and are used for executing the LED uniform light-emitting control method based on the full-color intelligent controllers according to the combination of any one or more embodiments of the invention.
In this embodiment, the full-color intelligent controller is similar or similar to the driving chip in hardware structure, and also includes a control chip and related peripheral circuits, and a large number of related products are provided in the prior art.
The invention determines the power corresponding to the color value by establishing a color value power relation graph, calculates the difference between the theoretical power and the actual power, and adjusts the color value according to the calculated difference, thereby achieving the effect of making up the color rendering deviation and enabling the array color rendering to be uniform. The invention solves the problem that the color development can not reach the theoretical value due to aging, loss and the like when the diode hardware is used, and ensures that the whole picture has more uniform color development.
Fig. 3 shows an internal structural diagram of the full-color intelligent controller in one embodiment. As shown in fig. 3, the full-color intelligent controller comprises a processor, a memory, a network interface, an input device and a display screen which are connected through a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the full-color intelligent controller stores an operating system and also stores a computer program, and when the computer program is executed by the processor, the processor can realize the LED uniform light-emitting control method based on the full-color intelligent controller provided by the embodiment of the invention. The internal memory can also store a computer program, and when the computer program is executed by the processor, the processor can execute the method for controlling the uniform light emission of the LED based on the full-color intelligent controller provided by the embodiment of the invention. The display screen of the full-color intelligent controller can be a liquid crystal display screen or an electronic ink display screen, and the input device of the full-color intelligent controller can be a touch layer covered on the display screen, can also be a key, a track ball or a touch pad arranged on the shell of the full-color intelligent controller, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be understood by those skilled in the art that the configuration shown in fig. 3 is a block diagram of only a portion of the configuration associated with the inventive arrangements, and does not constitute a limitation on the full-color intelligent controller to which the inventive arrangements are applied, and that a particular full-color intelligent controller may include more or fewer components than those shown, or some components may be combined, or have a different arrangement of components.
In one embodiment, a full-color intelligent controller is provided, the full-color intelligent controller comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
controlling each array to display pure colors through a driving chip, wherein the pure colors comprise red, green and blue;
determining the corresponding relation between the color value of each pure color and the power required by each array, and establishing a color value power relation graph;
acquiring a target image, and calculating theoretical display power of each array according to the color value power relation graph and the color value of each pixel point of the target image;
acquiring the actual input power of each array, calculating the difference between the actual input power of each array and the theoretical display power, and recording as a power difference;
and adjusting the pure color values in the arrays in an equal proportion according to the power difference of each array so as to enable each array to emit light uniformly.
In one embodiment, a computer readable storage medium is provided, having a computer program stored thereon, which, when executed by a processor, causes the processor to perform the steps of:
controlling each array to display pure colors through a driving chip, wherein the pure colors comprise red, green and blue;
determining the corresponding relation between the color value of each pure color and the power required by each array, and establishing a color value power relation graph;
acquiring a target image, and calculating theoretical display power of each array according to the color value power relation graph and the color value of each pixel point of the target image;
acquiring the actual input power of each array, calculating the difference between the actual input power of each array and the theoretical display power, and recording as a power difference;
and adjusting the pure color values in the arrays in an equal proportion according to the power difference of each array so as to enable each array to emit light uniformly.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by a computer program, which may be stored in a non-volatile computer readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases or other media used in the embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct Rambus Dynamic RAM (DRDRAM), and Rambus Dynamic RAM (RDRAM), among others.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The LED uniform light-emitting control method based on the full-color intelligent controller is characterized by comprising the following steps of:
controlling each array to display pure colors through a driving chip, wherein the pure colors comprise red, green and blue;
determining the corresponding relation between the color value of each pure color and the power required by each array, and establishing a color value power relation graph;
acquiring a target image, and calculating theoretical display power of each array according to the color value power relation graph and the color value of each pixel point of the target image;
acquiring the actual input power of each array, calculating the difference between the actual input power of each array and the theoretical display power, and recording as a power difference;
adjusting the pure color values in the arrays in an equal proportion according to the power difference of each array so as to enable each array to emit light uniformly;
the method for adjusting the pure color values in the arrays in an equal proportion mode according to the power difference of each array so as to enable each array to emit light uniformly comprises the following steps:
acquiring power difference of each array, and calculating a mean value of the power difference;
calculating the difference between the power difference of each array and the mean value of the power differences, and recording as an adjustment difference;
for each partition, distributing the power difference according to the proportion of the sum of the total powers corresponding to each pure color value;
and adjusting the color value of each pure color according to the distribution result.
2. The LED uniform light-emitting control method based on the full-color intelligent controller according to claim 1, wherein the controlling of each array to display a pure color through the driving chip comprises:
outputting a driving signal to enable the driving chip to output a switching signal to the corresponding array so that the corresponding array displays a pure color;
the switching signals are divided into three groups which respectively correspond to red, green and blue, each group of switching signals consists of 256 data packets, and each data packet consists of
And data composition, wherein n is the number of diodes corresponding to each color of each array, and i is the number of lit diodes.
3. The LED uniform light-emitting control method based on the full-color intelligent controller as claimed in claim 2, wherein the corresponding relation between the color value of each pure color and the required power of each array is determined, and a color value power relation graph is established, comprising the following steps:
for each m value of each array, obtain each pure color
Calculating the average power of each data under each pure color to obtain the required power corresponding to the color value m under the corresponding pure color;
increasing m from 0 to 255, repeating the previous step to obtain the required power corresponding to each color value of each pure color, and establishing a color value power relation graph according to the corresponding relation between the color values and the required power;
wherein m is an integer and takes a value from 0 to 255.
4. The method for controlling LED uniform light emission based on full-color intelligent controller according to claim 1, wherein calculating theoretical display power of each array from color values of each pixel point of the target image according to the color value power relation graph comprises:
partitioning the target image according to display areas, wherein each partition corresponds to one array;
acquiring the color value of each pixel point of each partition, and extracting the pure color value of each pixel point;
searching required power corresponding to the pure color values of all the pixel points according to the color value power relation graph, and calculating the total power of each pure color value of each subarea;
and calculating the sum of the total power of the three pure color values to obtain the theoretical display power of each array.
5. The full-color intelligent controller-based LED uniform light-emitting control method according to claim 1, wherein the steps of obtaining the actual input power of each array, calculating the difference between the actual input power and the theoretical display power of each array, and recording the difference as a power difference comprise:
displaying the acquired target image in a partition manner;
acquiring the actual input power of each partition;
and subtracting the theoretical display power from the actual input power to obtain a power difference.
6. The method for controlling uniform illumination of LEDs based on a full-color intelligent controller according to claim 1, wherein the step of proportionally adjusting the pure color values in the arrays according to the power difference of each array to make each array emit light uniformly comprises the following steps:
for each partition, distributing the power difference according to the proportion of the sum of the total power corresponding to each pure color value;
and adjusting the color value of each pure color according to the distribution result.
7. The LED uniform light-emitting control method based on the full-color intelligent controller as claimed in claim 6, wherein the adjusting the color value of each pure color according to the division result comprises:
calculating the power difference distributed to each pure color;
calculating the ratio of the distributed power difference to the original input total power of the pure color;
and increasing or decreasing the color value of the pure color corresponding to each pixel of the corresponding partition according to the calculated ratio value and the like.
8. The LED uniform light-emitting control method based on the full-color intelligent controller as claimed in claim 1, wherein the adjusting of the color value of each pure color according to the division result comprises:
calculating the adjustment difference distributed to each pure color;
calculating the ratio of the distributed adjustment difference to the original input total power of the pure color;
and increasing or decreasing the color value of the pure color corresponding to each pixel of the corresponding partition according to the ratio value such as the calculated ratio.
9. LED uniform light-emitting control system based on full-color intelligent controller, its characterized in that, LED uniform light-emitting control system based on full-color intelligent controller includes:
the input end of each driving chip is connected with the LED arrays; and
the full-color intelligent controller is respectively connected with the driving chips and used for executing the LED uniform light-emitting control method based on the full-color intelligent controller according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211365812.7A CN115424577B (en) | 2022-11-03 | 2022-11-03 | LED uniform light emitting control method and system based on full-color intelligent controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211365812.7A CN115424577B (en) | 2022-11-03 | 2022-11-03 | LED uniform light emitting control method and system based on full-color intelligent controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115424577A CN115424577A (en) | 2022-12-02 |
| CN115424577B true CN115424577B (en) | 2023-01-13 |
Family
ID=84207998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211365812.7A Active CN115424577B (en) | 2022-11-03 | 2022-11-03 | LED uniform light emitting control method and system based on full-color intelligent controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115424577B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116068916B (en) * | 2023-03-31 | 2023-06-09 | 永林电子股份有限公司 | Design and control method of multi-LED cooperation control system |
| CN116523688B (en) * | 2023-06-27 | 2023-09-12 | 天津理工大学 | Intelligent regulation and control method for water supply system and intelligent water supply system |
| CN117351859B (en) * | 2023-12-05 | 2024-02-09 | 深圳市深顺欣科技有限公司 | Detection method, device and system for display module |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162565A (en) * | 2007-11-19 | 2008-04-16 | 友达光电股份有限公司 | Colorful backlight control method |
| CN101360373A (en) * | 2007-08-01 | 2009-02-04 | 深圳Tcl工业研究院有限公司 | Power control method for LED backlight and LED display |
| CN103489411A (en) * | 2013-09-24 | 2014-01-01 | 广东威创视讯科技股份有限公司 | Display-screen color maintenance method and system |
| CN104485075A (en) * | 2014-12-30 | 2015-04-01 | 广东威创视讯科技股份有限公司 | Color mixture method for display screen of light emitting element |
| KR101737437B1 (en) * | 2017-01-13 | 2017-05-19 | (주)동방데이타테크놀러지 | LED Display to improve the image quality and power saving according to the Gray Scale of the Video output section |
| CN109643519A (en) * | 2016-08-26 | 2019-04-16 | 三星电子株式会社 | Display device and its driving method |
| DE102017125405A1 (en) * | 2017-10-30 | 2019-05-02 | Melexis Technologies Nv | Method and apparatus for calibrating LED lighting |
| CN111182675A (en) * | 2019-10-28 | 2020-05-19 | 李荣馨 | Full-color multichannel LED lamp area control circuit |
| CN112750171A (en) * | 2021-04-02 | 2021-05-04 | 深圳市火乐科技发展有限公司 | Color adjustment method, device, medium and electronic equipment |
| WO2022029875A1 (en) * | 2020-08-04 | 2022-02-10 | 三菱電機株式会社 | Led display system, led display control device, and led display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019045820A (en) * | 2017-09-07 | 2019-03-22 | 株式会社ジャパンディスプレイ | Display device |
| US20220198995A1 (en) * | 2020-12-18 | 2022-06-23 | Intel Corporation | Driving circuit for power efficient led display |
-
2022
- 2022-11-03 CN CN202211365812.7A patent/CN115424577B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101360373A (en) * | 2007-08-01 | 2009-02-04 | 深圳Tcl工业研究院有限公司 | Power control method for LED backlight and LED display |
| CN101162565A (en) * | 2007-11-19 | 2008-04-16 | 友达光电股份有限公司 | Colorful backlight control method |
| CN103489411A (en) * | 2013-09-24 | 2014-01-01 | 广东威创视讯科技股份有限公司 | Display-screen color maintenance method and system |
| CN104485075A (en) * | 2014-12-30 | 2015-04-01 | 广东威创视讯科技股份有限公司 | Color mixture method for display screen of light emitting element |
| CN109643519A (en) * | 2016-08-26 | 2019-04-16 | 三星电子株式会社 | Display device and its driving method |
| KR101737437B1 (en) * | 2017-01-13 | 2017-05-19 | (주)동방데이타테크놀러지 | LED Display to improve the image quality and power saving according to the Gray Scale of the Video output section |
| DE102017125405A1 (en) * | 2017-10-30 | 2019-05-02 | Melexis Technologies Nv | Method and apparatus for calibrating LED lighting |
| CN111182675A (en) * | 2019-10-28 | 2020-05-19 | 李荣馨 | Full-color multichannel LED lamp area control circuit |
| WO2022029875A1 (en) * | 2020-08-04 | 2022-02-10 | 三菱電機株式会社 | Led display system, led display control device, and led display device |
| CN112750171A (en) * | 2021-04-02 | 2021-05-04 | 深圳市火乐科技发展有限公司 | Color adjustment method, device, medium and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115424577A (en) | 2022-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115424577B (en) | LED uniform light emitting control method and system based on full-color intelligent controller | |
| JP4904783B2 (en) | Display device and display method | |
| TWI479469B (en) | Dynamic color gamut of led backlight | |
| KR101222991B1 (en) | Driving circuit of back light and method for driving the same | |
| US10229642B2 (en) | Liquid crystal display device | |
| CN109493744A (en) | Display optimisation technique for miniature LED component and array | |
| CN102124512B (en) | Image display device, and image display method | |
| US20070211179A1 (en) | Colour display device | |
| CN108447449A (en) | Signal processing method and display device | |
| US20200226987A1 (en) | Display driving method, device and apparatus | |
| JP2007322944A (en) | Display control device, display device, and display control method | |
| CN113971633B (en) | Flip chip spatial pixel multiplexing method, system, device and storage medium | |
| US20100002027A1 (en) | Display device and method | |
| US10339851B2 (en) | Display apparatus, lighting control circuit, and method of lighting display apparatus | |
| US20150235619A1 (en) | Method of driving light source module and display device using the method | |
| CN106991959A (en) | Image processing method and device for LED display | |
| JP2003216108A (en) | Lighting control method and display control method for display element and display device | |
| CN104851397A (en) | Method of driving light-source and display apparatus for performing the method | |
| US11763722B1 (en) | Flip chip space pixel arrangement structure, pixel multiplexing method and system, apparatus and storage medium | |
| CN111402796B (en) | Image processing method and image processing system | |
| CN113920948A (en) | Adjusting method and computer readable medium for backlight in field sequential display device | |
| CN112967660B (en) | Display control method and device and display equipment | |
| CN104318913A (en) | Display control method and device for terminal | |
| US11776495B2 (en) | Display device and method of controlling backlight of display device | |
| US11869407B2 (en) | Methods for compensating colors based on luminance adjustment parameters and the related display devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |