CN114089936B - Display drive control method, device, equipment and storage medium - Google Patents
Display drive control method, device, equipment and storage medium Download PDFInfo
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Abstract
The application provides a display drive control method, a device, equipment and a computer readable storage medium, wherein the display drive control method comprises the following steps: receiving image frame data, and decoding the image frame data to obtain an image data signal and an image control signal; acquiring gray information of the image data signals, and determining low gray display areas corresponding to the image data signals according to the gray information; extracting a scanning random number in a random scanning database, adjusting the image control signal according to the scanning random number and the low gray scale display partition, and determining a scanning driving sequence; and driving the low gray scale display subareas to display image pictures according to the scanning driving sequence. The display driving control method can avoid the occurrence of black lines in each row partition of the Mini-LED display screen under low gray scale display, and optimize the display effect of the Mini-LED display screen.
Description
Technical Field
The present application relates to the field of display screens, and in particular, to a display driving control method, device, apparatus, and storage medium.
Background
Currently, with the development of display technology, the gray scale of a picture that can be presented by a Mini-LED display screen is higher and higher. However, the driving circuit of the existing Mini-LED display screen is usually a passive driving circuit, and the driving mode is to light the screen by using progressive scan pulse width modulation. However, when displaying a low-gray-scale picture, the duty ratio becomes very low, which results in slower lighting speed of the LED beads, and the existing driving method is that the LED beads are scanned line by line from top to bottom, and the Mini-LED display screen is driven and controlled by multiple partitions, which results in slower lighting speed of the LED beads under the condition of low-gray-scale display, resulting in multiple black lines appearing on the screen of each row of partitions, and affecting the display effect.
Disclosure of Invention
The embodiment of the application provides a display driving control method, a device, equipment and a storage medium, which aim to solve the technical problem that the display effect is poor because black lines appear in each row partition of a Mini-LED display screen under low gray level display in the prior art.
In one aspect, an embodiment of the present application provides a display driving control method, including the steps of:
Receiving image frame data, and decoding the image frame data to obtain an image data signal and an image control signal;
acquiring gray information of the image data signals, and determining low gray display areas corresponding to the image data signals according to the gray information;
Extracting a scanning random number in a random scanning database, adjusting the image control signal according to the scanning random number and the low gray scale display partition, and determining a scanning driving sequence;
And driving the low gray scale display subareas to display image pictures according to the scanning driving sequence.
In some embodiments of the present application, the extracting the scan random number in the random scan database, adjusting the image control signal according to the scan random number and the low gray scale display section, and determining the scan driving sequence includes:
obtaining the number of the lamp bead rows of a display partition, and generating a scanning random number set corresponding to the lamp bead rows in the random scanning database;
Randomly extracting the scanning random numbers in the scanning random number set corresponding to the low gray scale display partition, outputting the scanning random numbers, adjusting the image control signals according to the scanning random numbers and the low gray scale display partition, and determining the scanning driving sequence.
In some embodiments of the present application, the extracting the scan random number in the random scan database, adjusting the image control signal according to the scan random number and the low gray scale display section, and determining the scan driving sequence includes:
reading a scanning random number set in the scanning database, and judging whether the scanning random number set is an empty set or not;
if the scanning random number set is an empty set, judging that the scanning driving sequence of the low gray scale display partition is determined to be completed;
Or alternatively, the first and second heat exchangers may be,
And if the scanning random number set is a non-empty set, randomly extracting and deleting the scanning random numbers in the scanning random number set, and determining a random scanning lamp bead row corresponding to the scanning random numbers in the low-gray display partition.
In some embodiments of the present application, the receiving image frame data, decoding the image frame data to obtain an image data signal and an image control signal, includes:
Receiving the image frame data, and decoding the image frame data to obtain image pixel data and an image control signal;
extracting red pixel data, blue pixel data, green pixel data and white pixel data of the image pixel data;
And correcting and calculating the red pixel data, the blue pixel data, the green pixel data and the white pixel data, and correcting to obtain the image data signal.
In some embodiments of the present application, the receiving image frame data, decoding the image frame data to obtain an image data signal and an image control signal, includes:
Receiving the image frame data, and decoding the image frame data to obtain the image data signal and the coding control signal;
And decoding the coding control signal to obtain a line field synchronizing signal and a data enabling signal carried by the coding control signal, and determining the line field synchronizing signal and the data enabling signal as the image control signal.
In some embodiments of the present application, the obtaining the gray information of the image data signal, and determining the low gray display region corresponding to the image data signal according to the gray information, includes:
Analyzing the gray information of the image data signals to obtain partition gray information of a display partition;
Judging whether the subarea gray-scale information falls into a preset low gray-scale interval or not, and obtaining the subarea gray-scale information as low gray-scale information according to a judging result;
and determining the display partition corresponding to the low gray information as a low gray display partition.
In some embodiments of the present application, the driving the low gray scale display section according to the scan driving sequence displays an image frame includes:
Analyzing the image data signals and the image control signals to obtain row image data signals and row image control signals of the lamp bead rows;
configuring lamp bead parameters of the lamp bead row according to the row image data signals and the row image control signals;
and displaying an image picture corresponding to the image data signal according to the configured lamp bead parameters.
In another aspect, the present application provides a display drive control apparatus including:
The image decoding module is configured to receive image frame data, decode the image frame data and obtain an image data signal and an image control signal;
The gray level determining module is configured to acquire gray level information of the image data signals and determine low gray level display partitions corresponding to the image data signals according to the gray level information;
The random scanning module is configured to extract scanning random numbers in a random scanning database, and a scanning driving sequence is determined according to the scanning random numbers and the low gray display partition;
And the picture display module is configured to drive the low gray display subareas to display image pictures according to the scanning driving sequence.
In another aspect, the present application also provides a display drive control apparatus including:
One or more processors;
a memory; and
One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the display drive control method of any of the above.
In another aspect, the present application also provides a computer-readable storage medium having stored thereon a computer program that is loaded by a processor to perform the steps of any one of the display drive control methods.
According to the application, image frame data are received and decoded to obtain image data signals and image control signals carried by the image frame data; acquiring gray information in an image data signal, and determining a low gray display zone which corresponds to the image data signal and needs to be randomly scanned according to the gray information; and extracting a scanning random number in a random scanning database, determining a scanning driving sequence according to the scanning random number and a low gray scale display partition, and driving the low gray scale display partition to display an image picture according to the scanning driving sequence. Therefore, the display picture of the Mini-LED display screen is more uniform, the occurrence of black lines in each row of low gray level subareas of the Mini-LED display screen under low gray level display is avoided, the display effect of the Mini-LED display screen is optimized, and the display quality of the Mini-LED display screen driven by the passive driving circuit is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a driving control method according to an embodiment of the present application;
FIG. 2 is a flow chart of an embodiment of a display driving control method according to the present application;
FIG. 3 is a flowchart illustrating another embodiment of a display driving control method according to an embodiment of the present application;
FIG. 4 is a flowchart of a display driving control method according to another embodiment of the present application;
FIG. 5 is a flowchart illustrating a display driving control method according to another embodiment of the present application;
FIG. 6 is a schematic diagram of an embodiment of a display driving control apparatus according to an embodiment of the present application;
Fig. 7 is a schematic structural diagram of an embodiment of a display driving control apparatus according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present application, the term "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described as "exemplary" in this disclosure is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
Currently, with the development of display technology, the gray scale of a picture that can be presented by a Mini-LED display screen is higher and higher. However, the driving circuit of the existing Mini-LED display screen is usually a passive driving circuit, and the driving mode is to light the screen by using progressive scan pulse width modulation. However, when displaying a low-gray-scale picture, the duty ratio becomes very low, which results in slower lighting speed of the LED beads, and the existing driving method is that the LED beads are scanned line by line from top to bottom, and the Mini-LED display screen is driven and controlled by multiple partitions, which results in slower lighting speed of the LED beads under the condition of low-gray-scale display, resulting in multiple black lines appearing on the screen of each row of partitions, and affecting the display effect.
Based on the above, the application provides a display driving control method, a device, equipment and a computer readable storage medium, so as to solve the technical problem that the display effect is poor because black lines appear in each row of subareas under low-gray display in the prior art.
The display driving control method in the embodiment of the invention is applied to a display driving control device, the display driving control device is arranged in display driving control equipment, one or more processors, a memory and one or more application programs are arranged in the display driving control equipment, wherein the one or more application programs are stored in the memory and are configured to be executed by the processors to implement the display driving control method; the display driving control device can be an intelligent terminal with a Mini-LED display screen, such as a mobile phone, a tablet personal computer, an intelligent television, an intelligent computer and the like.
As shown in fig. 1, fig. 1 is a schematic view of a display driving control method according to an embodiment of the present application, where the display driving control scene includes a display driving control device 100 (a display driving control apparatus is integrated in the display driving control device 100), and a computer readable storage medium corresponding to the display driving control method is run in the display driving control device 100 to execute steps of the display driving control method.
It should be understood that the display driving control apparatus in the display driving control method scenario shown in fig. 1, or the device included in the display driving control apparatus, is not limited to the embodiment of the present invention, that is, the number of devices and the type of devices included in the display driving control apparatus in the display driving control method scenario, or the number of devices and the type of devices included in each device, do not affect the overall implementation of the technical solution in the embodiment of the present invention, and may be calculated as equivalent replacement or derivative of the technical solution claimed in the embodiment of the present invention.
The display driving control apparatus 100 in the embodiment of the present invention is mainly used for: receiving image frame data, and decoding the image frame data to obtain an image data signal and an image control signal; acquiring gray information of the image data signals, and determining low gray display areas corresponding to the image data signals according to the gray information; extracting a scanning random number in a random scanning database, and determining a scanning driving sequence according to the scanning random number and the low gray scale display partition; and driving the low gray scale display subareas to display image pictures according to the scanning driving sequence.
Embodiments of the present application provide a display driving control method, apparatus, device, and computer-readable storage medium, which are described in detail below.
It will be understood by those skilled in the art that the application environment shown in fig. 1 is only one application scenario related to the present application, and is not limited to the application scenario of the present application, and other application environments may further include more or less display driving control devices than those shown in fig. 1, for example, only one display driving control device is shown in fig. 1, and it is understood that the scenario of the display driving control method may further include one or more display driving control devices, which is not limited herein in particular; the display drive control apparatus 100 may further include a memory for storing image frame data and other data.
It should be noted that, the schematic view of the display driving control method shown in fig. 1 is only an example, and the scene of the display driving control method described in the embodiment of the present invention is for more clearly describing the technical solution of the embodiment of the present invention, and does not constitute a limitation to the technical solution provided by the embodiment of the present invention.
Based on the above-described scene of the display drive control method, various embodiments of the display drive control method disclosed in the present invention are presented.
As shown in fig. 2, fig. 2 is a flowchart of an embodiment of a display driving control method according to the present application, and the image processing method includes the following steps 201 to 204:
201. receiving image frame data, and decoding the image frame data to obtain an image data signal and an image control signal;
the display driving control method in this embodiment is applied to a display driving control device, and the type and number of the display driving control device are not particularly limited, that is, the display driving control device may be one or more intelligent terminals, such as a mobile phone, a tablet computer, a smart television, a smart computer, and the like, on which a Mini-LED display screen is mounted. In a specific embodiment, the display driving control device is a smart television with a Mini-LED display screen.
Specifically, a Mini-LED display screen in the display driving control apparatus in this embodiment includes a plurality of display partitions controlled by driving ICs, where each driving IC independently drives a display partition corresponding to the control, and the driving IC is a display driving chip integrated with components such as a resistor, a regulator, a comparator, and a power transistor, and includes an LCD module and a display subsystem, and is responsible for driving a display and controlling driving current.
Specifically, the Mini-LED display screen also comprises a power supply module, an FPGA (Field Programmable GATE ARRAY ) module and an image signal processing module.
The power supply module is used for providing working voltages for the display drive IC, the FPGA module and the image signal processing module in the Mini-LED display screen, so that the display drive IC, the FPGA module and the image signal processing module can normally operate.
The FPGA module is used for adjusting the image control signals so that the low-gray display subareas can randomly scan and display the image frames of the image data signals.
Wherein, the image signal processing module includes an HDMI interface and an HDMI decoder, optionally, in another embodiment, the image signal processing module may further include a DP interface and a DP decoder.
Specifically, after the display drive control device is powered on and started, receiving an audiovisual content playing instruction, wherein the audiovisual content playing instruction is a control instruction for requesting the display drive control device to play a certain listening content, after receiving the audiovisual content playing instruction, the display drive control device obtains one or more corresponding frames of image frame data in the audiovisual content pointed by the audiovisual content playing instruction, transmits the image frame data to the Mini-LED display screen through an HDMI interface or a DP interface in the image signal processing module, decodes the image frame data through an HDMI decoder or a DP decoder in the image signal processing module, and decodes the image frame data into an image data signal and an image control signal. Wherein the image data signal is a data signal carrying the image frame data image picture; the image control signal is a control instruction for driving the Mini-LED to display an image picture corresponding to the image data signal.
The image signal processing module decodes the image frame data to obtain an image data signal and an image control signal, and then transmits the image data signal and the image control signal to the FPGA module for image control signal processing.
202. Acquiring gray information of the image data signals, and determining low gray display areas corresponding to the image data signals according to the gray information;
in this embodiment, the display driving control apparatus parses the image data signal to determine the gradation information carried by the partition image data signal of each display partition in the image data signal. And judging whether the display subarea is a low gray display subarea according to the acquired gray information of each display subarea.
Optionally, a preset low gray scale interval is preset in the display driving control device, and whether the gray scale information carried in the partition image data signal of each display partition of the display driving control device is the low gray scale information is judged according to the preset low gray scale interval, so as to judge whether the display partition is the low gray scale partition in the current image frame data.
Specifically, the display driving control device obtains the highest gray level of the Mini-LED display screen, and generates a low gray level threshold according to the highest gray level, and specifically, the low gray level threshold can be set to any one value of 15% -20% of the highest gray level value. Optionally, in a specific embodiment, the display driving control apparatus sets the low gray scale threshold value to 15% of the highest gray scale value; alternatively, in another embodiment, the display driving control apparatus sets the low gray scale threshold to 20% of the highest gray scale value.
After the low gray scale threshold value is obtained, the display driving control device generates a preset low gray scale interval according to the low gray scale threshold value, and determines whether the current display partition for displaying the image frame data is a low gray scale display partition according to the preset low gray scale interval. Specifically, the display drive control apparatus generates a low-gradation section by taking the lowest gradation value as the left end point of the section and the low-gradation threshold value as the right end point of the section after acquiring the low-gradation threshold value.
The display driving control equipment acquires the gray information of the image data signal after generating a low gray interval according to the low gray level threshold value, judges whether the gray information falls into a preset low gray level interval, and determines that the display partition corresponding to the image data signal is a low gray level partition if the gray information falls into the preset low gray level interval. Optionally, in a specific embodiment, the Mini-LED display screen of the display driving control device has 20×25 display sections, and each display section has a unique pointing number. The display drive control apparatus parses gradation information of the image data signal, determines that gradation information of a display section with a number 123 is below a low gradation threshold value, and determines that the display section with a number 123 is a low gradation display section when displaying the current image data signal based on the gradation information. The display driving control device performs optimized driving control on the low-gray display subareas, so that the situation that the display of the low-gray display subareas is uneven is avoided, and the display effect of the low-gray display subareas is optimized.
203. Extracting a scanning random number in a random scanning database, adjusting the image control signal according to the scanning random number and the low gray scale display partition, and determining a scanning driving sequence;
in this embodiment, the display driving control device generates a random scan database in advance, obtains the number of rows of the lamp beads in each display partition, and generates a set of scan random numbers corresponding to the display partition in the random scan database, where the scan random numbers in the set of scan random numbers are in one-to-one correspondence with the number of rows of the lamp beads in the display partition, and each scan random number corresponds to one row of the lamp beads in the display partition.
After the low gray scale display subareas are determined according to the gray scale information of each display subarea, the display driving control equipment acquires a scanning random number set corresponding to each low gray scale display subarea from a random scanning database, and determines the scanning driving sequence of the low gray scale display subareas according to the scanning random numbers in the scanning random number set.
Specifically, the display driving control device randomly extracts a scanning random number corresponding to the number of the low-gray display partition lamp bead rows, obtains the scanning random number, deletes the scanning random number in the scanning random number set, and after obtaining the scanning random number, the display driving control device adjusts the image control signal according to the scanning random number to change the scanning driving sequence in the image control signal.
Specifically, after obtaining a scanning random number corresponding to the number of the lamp beads of the low-gray display partition, the display driving control device locates the lamp bead row corresponding to the scanning random number, deletes the scanning random number, and judges whether the scanning random number set is an empty set or not.
Specifically, if the scan random number set is a non-empty set, the display driving control device continues to extract the scan random number in the scan random number set, determines a lamp bead row corresponding to the scan random number, and sequentially loops until the scan random number set is determined to be an empty set.
Specifically, if the scan random number set is an empty set, it is determined that the setting of the scan driving sequence of the low gray scale display section is completed.
Specifically, the display driving control device determines the scanning driving sequence of the low gray scale display section according to the extraction sequence after extracting the scanning random numbers in the scanning random number set. Optionally, in a specific embodiment, the scanning random numbers of the scanning random number set of a certain low gray scale display region sequentially extracted by the display driving control device are 10, 6, 8, 3, 5, 1, 2, 4, 7, and 9, and based on the extraction sequence of the scanning random numbers, the display driving control device determines that the scanning driving sequence of the low gray scale display region is tenth light bulb row-sixth light bulb row-eighth light bulb row-third light bulb row-fifth light bulb row-first light bulb row-second light bulb row-fourth light bulb row-seventh light bulb row-ninth light bulb row.
204. And driving the low gray scale display subareas to display image pictures according to the scanning driving sequence.
In this embodiment, the display driving control device adjusts the image control signal according to the scan random number, determines the scan driving sequence of the low-gray-scale display section, and then drives the low-gray-scale display section according to the scan driving sequence to display the image corresponding to the image frame data.
Specifically, after determining a corresponding light bead row in a low gray scale display area according to a scanning random number, the display driving control device transmits row image data signals and control signals corresponding to the light bead row to a driving IC of the low gray scale display area, and drives and scans the light bead row through the driving IC, so that the light bead row displays a corresponding image picture according to the row image data signals.
Specifically, in one embodiment, the display driving control device sequentially extracts the scan random numbers of the scan random number set of a certain low gray scale display region as 10, 6, 8, 3,5, 1, 2,4, 7, 9, and determines the scan driving sequence of the low gray scale display region as tenth light bulb row-sixth light bulb row-eighth light bulb row-third light bulb row-fifth light bulb row-first light bulb row-second light bulb row-fourth light bulb row-seventh light bulb row-ninth light bulb row based on the extraction sequence of the scan random numbers. The display driving control device sends row image data signals and row control signals corresponding to a tenth lamp bead row, a sixth lamp bead row, an eighth lamp bead row, a third lamp bead row, a fifth lamp bead row, a first lamp bead row, a second lamp bead row, a fourth lamp bead row, a seventh lamp bead row and a ninth lamp bead row to the driving IC of the low gray scale display partition according to a scanning driving sequence, and the driving IC is controlled to randomly scan the lamp bead rows in the low gray scale display partition one by one according to the scanning sequence of the tenth lamp bead row, the sixth lamp bead row, the eighth lamp bead row, the third lamp bead row, the fifth lamp bead row, the first lamp bead row, the second lamp bead row, the fourth lamp bead row, the seventh lamp bead row and the ninth lamp bead row, so that the lamp bead rows display corresponding image frames according to the scanning driving sequence, and the scanning sequence of each scanning of the low gray scale display partition is random.
In this embodiment, the display driving control device receives image frame data and decodes the image frame data to obtain an image data signal and an image control signal carried by the image frame data; acquiring gray information in an image data signal, and determining a low gray display zone which corresponds to the image data signal and needs to be randomly scanned according to the gray information; and extracting a scanning random number in a random scanning database, determining a scanning driving sequence of a low gray scale display partition according to the scanning random number, and driving the low gray scale display partition to display an image picture according to the scanning driving sequence. The scanning of the low-gray display subareas is more uniform, so that the occurrence of black lines in each row subarea of the Mini-LED display screen under low-gray display is avoided, and the display effect of the Mini-LED display screen is improved.
Fig. 3 is a flowchart of another embodiment of a display driving control method according to an embodiment of the application.
Based on the above embodiment, the display driving control method of the present application further includes steps 301 to 303:
301. Receiving the image frame data, and decoding the image frame data to obtain image pixel data and an image control signal;
302. Extracting red pixel data, blue pixel data, green pixel data and white pixel data of the image pixel data;
303. And correcting and calculating the red pixel data, the blue pixel data, the green pixel data and the white pixel data, and correcting to obtain the image data signal.
In this embodiment, the display driving control device acquires one or more frames of image frame data of the audio-visual content, transmits the image frame data to the Mini-LED display screen through the HDMI interface or the DP interface in the image signal processing module, decodes the image frame data through the HDMI decoder or the DP decoder in the image signal processing module, and decodes the image frame data into the image pixel signal and the image control signal. After the display driving control equipment acquires the image pixel signals, the image pixel signals are transmitted to the FPGA module for pixel correction.
Specifically, the display driving control device shoots red display data of a Mini-LED display screen as red correction data by an optical camera module in advance;
The display driving control equipment also shoots blue display data of the Mini-LED display screen by the optical camera module in advance to serve as blue correction data;
The display driving control equipment shoots green display data of a Mini-LED display screen by an optical camera module in advance to serve as green correction data;
the display driving control equipment shoots white field display data of the Mini-LED display screen as white field correction data by the optical shooting module in advance.
The display driving control equipment extracts red pixel data in the image pixel signals, corrects the red pixel data according to red correction data, and corrects the red pixel data according to a calculation result;
the display driving control equipment extracts blue pixel data in the image pixel signals, corrects the blue pixel data according to blue correction data, and corrects the blue pixel data according to a calculation result;
The display driving control equipment extracts green pixel data in the image pixel signals, corrects the green pixel data according to the green correction data, and corrects the green pixel data according to a calculation result;
The display driving control device extracts white field pixel data in the image pixel signals, corrects the white field pixel data according to the white field correction data, corrects the white field pixel data according to a calculation result, and synthesizes corrected red pixel data, blue pixel data, green pixel data and white field pixel data to obtain corrected image data signals. The display driving control device performs random scanning on the low gray display region according to the corrected image data signal and displays an image picture corresponding to the image data signal.
In this embodiment, the display driving control device obtains correction data of the display screen by using the optical image capturing module in advance, and performs correction calculation on image pixel data according to the correction data, thereby obtaining corrected image data signals, and performs random scanning on the low-gray display area according to the corrected image data signals, and displays an image corresponding to the image data signals. Thereby effectively improving the display effect of the display drive control apparatus.
Fig. 4 is a flowchart of a display driving control method according to another embodiment of the present application.
Based on the above embodiment, the display driving control method of the present application further includes steps 401 to 402:
401. Receiving the image frame data, and decoding the image frame data to obtain the image data signal and the coding control signal;
402. And decoding the coding control signal to obtain a line field synchronizing signal and a data enabling signal carried by the coding control signal, and determining the line field synchronizing signal and the data enabling signal as the image control signal.
In this embodiment, the display driving control device acquires one or more frames of image frame data of the audio-visual content, transmits the image frame data to the Mini-LED display screen through the HDMI interface or the DP interface in the image signal processing module, and decodes the image frame data through the HDMI decoder or the DP decoder in the image signal processing module, to obtain the image data like and encoding control signal.
After the display driving control equipment acquires the coding control signal, decoding the coding control signal, acquiring a line field synchronizing signal and a data enabling signal carried by the coding control signal, and marking the line field synchronizing signal and the data enabling signal as image control signals. And the row field synchronizing signal and the data enabling signal are used for carrying out random driving control on the lamp bead rows in the display partition.
Specifically, the display driving control device performs random scanning on the light bead rows in the low-gray display area through the row field synchronizing signals, and after each row of light bead rows are scanned, the scanning condition of the light bead rows is determined according to the row field synchronizing signals.
Specifically, the display driving control apparatus also distinguishes the image frame data according to the data enable signal, thereby determining an effective image data signal among the image data signals, and scanning the lamp bead row according to the effective image data signal.
In this embodiment, the display driving control apparatus decodes the image frame data by receiving the image frame data to obtain the image data signal and the encoding control signal; decoding the coding control signal to obtain a line field synchronizing signal and a data enabling signal carried by the coding control signal, determining the line field synchronizing signal and the data enabling signal as the image control signal, scanning a display partition in a display screen of the display driving control device according to the image control signal, and improving the display effect of the display driving control device.
Fig. 5 is a flowchart of a display driving control method according to another embodiment of the present application.
Based on the above embodiment, the display driving method of the present application further includes steps 501 to 503:
501. analyzing the image data signals and the image control signals to obtain row image data signals and row image control signals of the lamp bead rows;
502. configuring lamp bead parameters of the lamp bead row according to the row image data signals and the row image control signals;
503. And displaying an image picture corresponding to the image data signal according to the configured lamp bead parameters.
In this embodiment, the display driving control apparatus analyzes the image data signal and the image control signal after determining the random scanning order of the low-gradation display section according to the scanning random number, and obtains the line image data signal and the line image control signal of each of the bead lines in the low-gradation display section.
After acquiring the row image data signals and the row image control signals of each lamp bead row in the low-gray display partition, the display driving control device performs time sequence control processing on the row image data signals and the row image control signals through the FPGA module, and transmits the time sequence control processed row image data signals and the time sequence control signals to the driving IC module, so that the driving IC module configures lamp bead parameters of the lamp bead row according to the row image data signals and the row image control signals, adjusts pixel color parameters and scanning parameters of each lamp bead in the lamp bead row, and enables the lamp beads of the lamp bead row to display image pictures corresponding to the image data signals during scanning driving.
After the display driving control equipment configures the lamp bead parameters of the lamp bead rows according to the row image data signals and the row image control signals, the lamp bead rows in the low gray scale display subareas are lightened in a random scanning mode through the driving IC module, so that the low gray scale display subareas display corresponding image pictures.
In this embodiment, the display driving control device obtains the row image data signal and the row image control signal of the bead row by analyzing the image data signal and the image control signal; configuring lamp bead parameters of the lamp bead row according to the row image data signals and the row image control signals; and displaying an image picture corresponding to the image data signal according to the configured lamp bead parameters. The lamp bead rows of each display partition are lightened in a random scanning mode, so that images of the display partitions are more uniform, and the picture display effect of the display partitions under the condition of low gray scale is improved.
In order to better implement the display driving control method according to the embodiment of the present application, on the basis of the display driving control method, a display driving control device is further provided in the embodiment of the present application, as shown in fig. 6, fig. 6 is a schematic structural diagram of an embodiment of the display driving control apparatus provided in the embodiment of the present application, where the display driving control device 600 includes:
An image decoding module 601 configured to receive image frame data, decode the image frame data, and obtain an image data signal and an image control signal;
A gray determining module 602 configured to obtain gray information of the image data signal, and determine a low gray display region corresponding to the image data signal according to the gray information;
A random scanning module 603 configured to extract a scanning random number in a random scanning database, adjust the image control signal according to the scanning random number and the low gray scale display section, and determine a scanning driving sequence;
The screen display module 604 is configured to drive the low gray scale display section to display an image screen according to the scan driving sequence.
In some embodiments of the present application, the display driving control device extracts a scan random number in a random scan database, adjusts the image control signal according to the scan random number and the low gray scale display section, and determines a scan driving sequence, including:
obtaining the number of the lamp bead rows of a display partition, and generating a scanning random number set corresponding to the lamp bead rows in the random scanning database;
Randomly extracting the scanning random numbers in the scanning random number set corresponding to the low gray scale display partition, outputting the scanning random numbers, adjusting the image control signals according to the scanning random numbers and the low gray scale display partition, and determining the scanning driving sequence.
In some embodiments of the present application, the display driving control device extracts a scan random number in a random scan database, adjusts the image control signal according to the scan random number and the low gray scale display section, and determines a scan driving sequence, including:
reading a scanning random number set in the scanning database, and judging whether the scanning random number set is an empty set or not;
if the scanning random number set is an empty set, judging that the scanning driving sequence of the low gray scale display partition is determined to be completed;
Or alternatively, the first and second heat exchangers may be,
And if the scanning random number set is a non-empty set, randomly extracting and deleting the scanning random number in the scanning random number set, and determining a lamp bead row corresponding to the scanning random number in the low-gray display partition.
In some embodiments of the present application, a display driving control apparatus receives image frame data, decodes the image frame data to obtain an image data signal and an image control signal, includes:
Receiving the image frame data, and decoding the image frame data to obtain image pixel data and an image control signal;
extracting red pixel data, blue pixel data, green pixel data and white pixel data of the image pixel data;
And correcting and calculating the red pixel data, the blue pixel data, the green pixel data and the white pixel data, and correcting to obtain the image data signal.
In some embodiments of the present application, a display driving control apparatus receives image frame data, decodes the image frame data to obtain an image data signal and an image control signal, includes:
Receiving the image frame data, and decoding the image frame data to obtain the image data signal and the coding control signal;
And decoding the coding control signal to obtain a line field synchronizing signal and a data enabling signal carried by the coding control signal, and determining the line field synchronizing signal and the data enabling signal as the image control signal.
In some embodiments of the present application, the display driving control device obtains gray information of the image data signal, determines a low gray display region corresponding to the image data signal according to the gray information, and includes:
Analyzing the gray information of the image data signals to obtain partition gray information of a display partition;
judging whether the subarea gray-scale information falls into a preset low gray-scale interval or not, and obtaining the subarea gray-scale information as low gray-scale information according to a judging result;
and determining the display partition corresponding to the low gray information as a low gray display partition.
In some embodiments of the present application, the display driving control device drives the low gray scale display section to display an image frame according to the scan driving sequence, including:
Analyzing the image data signals and the image control signals to obtain row image data signals and row image control signals of the lamp bead rows;
configuring lamp bead parameters of the lamp bead row according to the row image data signals and the row image control signals;
and displaying an image picture corresponding to the image data signal according to the configured lamp bead parameters.
In this embodiment, the display driving control device receives image frame data and decodes the image frame data to obtain an image data signal and an image control signal carried by the image frame data; acquiring gray information in an image data signal, and determining a low gray display zone which corresponds to the image data signal and needs to be randomly scanned according to the gray information; and extracting a scanning random number in a random scanning database, determining a scanning driving sequence according to the scanning random number and a low gray scale display partition, and driving the low gray scale display partition to display an image picture according to the scanning driving sequence. Therefore, the display picture of the Mini-LED display screen is more uniform, the occurrence of black lines in each row of subareas of the Mini-LED display screen under low gray level display is avoided, and the display effect of the Mini-LED display screen is optimized.
The embodiment of the application also provides a display driving control device, as shown in fig. 7, and fig. 7 is a schematic structural diagram of an embodiment of the display driving control device provided by the embodiment of the application.
The display drive control apparatus integrates any one of the display drive control devices provided by the embodiments of the present invention, and includes:
One or more processors;
a memory; and
One or more application programs stored in the memory and configured to be executed by the processor to perform the steps of the display drive control method described in any of the above display drive control method embodiments.
Specifically, the present invention relates to a method for manufacturing a semiconductor device. The display drive control device may include one or more processors 701 of a processing core, memory 702 of one or more computer readable storage media, power supply 703, and input unit 704, among other components. It will be appreciated by those skilled in the art that the display drive control apparatus structure shown in fig. 7 does not constitute a limitation of the display drive control apparatus, and may include more or fewer components than shown, or may combine certain components, or may have a different arrangement of components. Wherein:
The processor 701 is a control center of the display drive control apparatus, connects respective portions of the entire display drive control apparatus using various interfaces and lines, and performs various functions of the display drive control apparatus and processes data by running or executing software programs and/or modules stored in the memory 702 and calling data stored in the memory 702, thereby performing overall monitoring of the display drive control apparatus. Optionally, processor 701 may include one or more processing cores; preferably, the processor 701 may integrate an application processor and a modem processor, wherein the application processor primarily handles operating systems, user interfaces, applications, etc., and the modem processor primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 701.
The memory 702 may be used to store software programs and modules, and the processor 701 executes various functional applications and data processing by executing the software programs and modules stored in the memory 702. The memory 702 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data created according to the use of the display drive control apparatus, and the like. In addition, the memory 702 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 702 may also include a memory controller to provide access to the memory 702 by the processor 701.
The display driving control apparatus further includes a power supply 703 for supplying power to the respective components, and preferably, the power supply 703 may be logically connected to the processor 701 through a power management system, so that functions of managing charge, discharge, power consumption management, and the like are realized through the power management system. The power supply 703 may also include one or more of any component, such as a direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, etc.
The display drive control device may further comprise an input unit 704, which input unit 704 may be used for receiving input numerical or character information and generating keyboard, mouse, joystick, optical or trackball signal inputs in connection with user settings and function control.
Although not shown, the display driving control apparatus may further include a display unit or the like, which is not described herein. In particular, in this embodiment, the processor 701 in the display driving control device loads executable files corresponding to the processes of one or more application programs into the memory 702 according to the following instructions, and the processor 701 executes the application programs stored in the memory 702, so as to implement various functions as follows:
Receiving image frame data, and decoding the image frame data to obtain an image data signal and an image control signal;
acquiring gray information of the image data signals, and determining low gray display areas corresponding to the image data signals according to the gray information;
extracting a scanning random number in a random scanning database, adjusting the image control signal according to the scanning random number, and determining a scanning driving sequence of the low gray scale display partition;
And driving the low gray scale display subareas to display image pictures according to the scanning driving sequence.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and the portions of one embodiment that are not described in detail in the foregoing embodiments may be referred to in the foregoing detailed description of other embodiments, which are not described herein again.
In the implementation, each unit or structure may be implemented as an independent entity, or may be implemented as the same entity or several entities in any combination, and the implementation of each unit or structure may be referred to the foregoing method embodiments and will not be repeated herein.
The specific implementation of each operation above may be referred to the previous embodiments, and will not be described herein.
The foregoing has described in detail a display driving control method provided by embodiments of the present application, and specific embodiments have been applied herein to illustrate the principles and embodiments of the present application, where the foregoing embodiments are only for aiding in the understanding of the method and core idea of the present application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.
Claims (9)
1. A display drive control method, characterized by comprising:
Receiving image frame data, and decoding the image frame data to obtain an image data signal and an image control signal;
acquiring gray information of the image data signals, and determining low gray display areas corresponding to the image data signals according to the gray information;
Acquiring the number of the lamp bead rows of a low-gray-scale display partition, generating a scanning random number set corresponding to the number of the lamp bead rows in a random scanning database, randomly extracting the scanning random numbers in the scanning random number set corresponding to the low-gray-scale display partition, outputting the scanning random numbers corresponding to the number of the lamp bead rows, adjusting the image control signals according to the scanning random numbers and the low-gray-scale display partition, and determining a scanning driving sequence in the low-gray-scale display partition;
And randomly scanning the lamp bead rows in the low-gray display partition one by one according to the scanning driving sequence, so that the lamp bead rows display corresponding image frames according to the scanning driving sequence.
2. The display drive control method according to claim 1, wherein the extracting the scan random number in the random scan database, adjusting the image control signal according to the scan random number and the low gray scale display section, determining the scan drive order, comprises:
reading a scanning random number set in the scanning database, and judging whether the scanning random number set is an empty set or not;
if the scanning random number set is an empty set, judging that the scanning driving sequence of the low gray scale display partition is determined to be completed;
Or alternatively, the first and second heat exchangers may be,
And if the scanning random number set is a non-empty set, randomly extracting and deleting the scanning random number in the scanning random number set, and determining a lamp bead row corresponding to the scanning random number in the low-gray display partition.
3. The display drive control method according to claim 1, wherein said receiving image frame data, decoding said image frame data to obtain an image data signal and an image control signal, comprises:
Receiving the image frame data, and decoding the image frame data to obtain image pixel data and an image control signal;
extracting red pixel data, blue pixel data, green pixel data and white pixel data of the image pixel data;
And correcting and calculating the red pixel data, the blue pixel data, the green pixel data and the white pixel data, and correcting to obtain the image data signal.
4. The display drive control method according to claim 1, wherein said receiving image frame data, decoding said image frame data to obtain an image data signal and an image control signal, comprises:
Receiving the image frame data, and decoding the image frame data to obtain the image data signal and the coding control signal;
And decoding the coding control signal to obtain a line field synchronizing signal and a data enabling signal carried by the coding control signal, and determining the line field synchronizing signal and the data enabling signal as the image control signal.
5. The display drive control method according to claim 1, wherein the acquiring the gradation information of the image data signal, determining the low gradation display section corresponding to the image data signal based on the gradation information, comprises:
Analyzing the gray information of the image data signals to obtain partition gray information of a display partition;
judging whether the subarea gray-scale information falls into a preset low gray-scale interval or not, and obtaining the subarea gray-scale information as low gray-scale information according to a judging result;
and determining the display partition corresponding to the low gray information as a low gray display partition.
6. The display drive control method according to claim 1, wherein the driving the low-gradation-display section according to the scanning drive sequence displays an image picture, comprising:
Analyzing the image data signals and the image control signals to obtain row image data signals and row image control signals of the lamp bead rows;
configuring lamp bead parameters of the lamp bead row according to the row image data signals and the row image control signals;
and displaying an image picture corresponding to the image data signal according to the configured lamp bead parameters.
7. A display drive control apparatus, characterized by comprising:
The image decoding module is configured to receive image frame data, decode the image frame data and obtain an image data signal and an image control signal;
The gray level determining module is configured to acquire gray level information of the image data signals and determine low gray level display partitions corresponding to the image data signals according to the gray level information;
the random scanning module is configured to acquire the number of the lamp bead rows of the low-gray-scale display partition, generate a scanning random number set corresponding to the number of the lamp bead rows in a random scanning database, randomly extract the scanning random numbers in the scanning random number set corresponding to the low-gray-scale display partition, output the scanning random numbers corresponding to the number of the lamp bead rows, adjust the image control signals according to the scanning random numbers and the low-gray-scale display partition, and determine the scanning driving sequence in the low-gray-scale display partition;
And the picture display module is configured to randomly scan the lamp bead rows in the low-gray display partition one by one according to the scanning driving sequence, so that the lamp bead rows display corresponding image pictures according to the scanning driving sequence.
8. A display drive control apparatus, characterized by comprising:
One or more processors;
a memory; and
One or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the display drive control method of any one of claims 1 to 6.
9. A computer-readable storage medium, having stored thereon a computer program that is loaded by a processor to perform the steps of the display drive control method of any one of claims 1 to 6.
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