CN112581875A - Information display method and device of module board - Google Patents
Information display method and device of module board Download PDFInfo
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- CN112581875A CN112581875A CN201910936318.3A CN201910936318A CN112581875A CN 112581875 A CN112581875 A CN 112581875A CN 201910936318 A CN201910936318 A CN 201910936318A CN 112581875 A CN112581875 A CN 112581875A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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Abstract
The embodiment of the application discloses an information display method and device of a module board. The method comprises the following steps: if the reverse connection module board exists, determining data to be displayed of the reverse connection module board; and inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed, and displaying the inverted data to be displayed on the reverse connection module board. By executing the technical scheme, the effect of normally displaying picture content is realized no matter the module board is connected in the positive direction or in the reverse direction.
Description
Technical Field
The embodiment of the application relates to the technical field of data transmission, in particular to an information display method and device of a module board.
Background
At present, the display screen is widely applied to the market, and the display screen can be used for displaying information in public occasions from classrooms to markets and from stations to office buildings, so that the purpose of information sharing is achieved.
Taking LED (Light Emitting Diode) as an example, in order to improve the definition of the LED display screen, the application of the small-pitch LED display screen is becoming mature. At present, a small-pitch LED display screen mainly includes two parts, namely a chassis and a screen, wherein the chassis may include a power supply, a receiving card, an adapter plate, and the like, and the screen may include at least one module plate. The display principle of the LED display screen is as follows: and finally, the driving chip drives the light-emitting device on the module board to display. The module board is connected with the adapter board through an interface. Under the condition that the module board is not provided with an external lead, an interface is generally arranged on the back surface of the module board and is inserted into the interface on the front surface of the adapter board, so that data transmission and display are realized. Because the scale of the adapter plate is fixed, when a plurality of module plates are connected to the same adapter plate, the normal display can be realized when the module plates are connected positively, and the normal display cannot be realized when the module plates are connected negatively, so that how to realize the normal display of the display screen when the module plates are connected positively or negatively is a problem for the technical personnel in the field.
Disclosure of Invention
The embodiment of the application provides an information display method and device for a module board, which can achieve the effect of normally displaying picture content no matter whether the module board is connected in the positive direction or in the reverse direction.
In a first aspect, an embodiment of the present application provides an information display method for a module board, where the method includes:
if the reverse connection module board exists, determining data to be displayed of the reverse connection module board;
and inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed, and displaying the inverted data to be displayed on the reverse connection module board.
Optionally, determining data to be displayed of the reverse connection module board includes:
determining a data range to be displayed of the reverse connection module board in the screen according to the position of the reverse connection module board in the screen and the display parameters of the module board;
and determining the data to be displayed of the reverse connection module board according to the data range to be displayed of the reverse connection module board in the screen.
Optionally, the inverting the data to be displayed on the reverse connection module board to obtain inverted data to be displayed includes:
caching data to be displayed of a screen, and performing row inversion processing on each pixel point data in the data to be displayed of the reverse connection module board;
and performing row inversion processing on the data to be displayed of the reverse connection module board after the column inversion processing to obtain inverted data to be displayed.
Optionally, the area for caching the data to be displayed on the screen includes a first-level cache unit and a second-level cache unit; caching data to be displayed on a screen, and performing row-column inversion processing on each pixel point data in the data to be displayed of the reverse connection module board, wherein the row-column inversion processing comprises the following steps:
storing data to be displayed of a screen to a first-level cache unit, performing column inversion processing on the data to be displayed of a reverse connection module board in the first-level cache unit, and storing the data to be displayed after the column inversion processing to a second-level cache unit; the data stored in the first-level cache unit and the second-level cache unit is at least one line of pixel point data in the data to be displayed of the screen.
Optionally, after performing secondary caching on the data to be displayed after the column inversion processing, the method further includes:
and if the data stored in the current secondary cache unit comprises the data to be displayed of the reverse connection module board, determining the number of rows after the row inversion processing according to the number of rows of the data stored in the current secondary cache unit in the data to be displayed of the reverse connection module board, so as to obtain the inverted data to be displayed.
Optionally, column inversion processing is performed on the data to be displayed of the reverse connection module board by using the following formula:
COL1＝COL_START+COL_END-COL0；
wherein, COL1 is the second level cache pixel column position, COL _ START is the initial column of data to be displayed of the reverse connection module board, COL _ END is the ending column of data to be displayed of the reverse connection module board, and COL0 is the first level cache pixel column position.
Optionally, the following formula is adopted to calculate the line inversion processing of the data to be displayed of the reverse connection module board:
D＝(ROW_START+ROW_END-ROW1)·ROW_STRIDE+COL1·N；
d is the storage position of inverted data to be displayed, ROW _ START is the initial line of the data to be displayed of the reverse connection module board, ROW _ END is the ending line of the data to be displayed of the reverse connection module board, ROW1 is the line position of the cached pixel points, ROW _ STRIDE is the address space occupied by each line of pixel points, COL1 is the column position of the secondary cached pixel points, and N is the address space occupied by each pixel point.
Optionally, identifying the existence of a reverse connection module board comprises:
and determining whether the reverse connection module board exists or not by detecting an interface signal for connecting the adapter board and the module board.
In a second aspect, an embodiment of the present application provides an information display device of a module board, including:
the data determining module of the reverse connection module board is used for determining the data to be displayed of the reverse connection module board if the reverse connection module board is identified;
and the inversion processing module is used for inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed and displaying the inverted data to be displayed on the reverse connection module board.
Optionally, the apparatus further comprises:
and the display module is used for sending the data to be displayed of the screen to the module board for displaying.
According to the technical scheme provided by the embodiment of the application, if the reverse connection module board is identified, the data to be displayed of the reverse connection module board is determined; and inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed, and displaying the inverted data to be displayed on the reverse connection module board. Through adopting the technical scheme that this application provided, can realize no matter the module board of connecing or the transposition, the effect that can both normally show picture content.
Drawings
Fig. 1 is a flowchart of an information display method of a module board according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of an LED display screen provided in an embodiment of the present application;
FIG. 3 is a schematic diagram of a position of data to be displayed on a reverse connection module board according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of an LED display screen with a reverse module board provided by an embodiment of the present application;
FIG. 5 is a schematic diagram of a column inversion process provided by an embodiment of the present application;
FIG. 6 is a schematic structural diagram of an information display device of a module board provided in an embodiment of the present application;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Fig. 1 is a flowchart of an information display method of a module board according to an embodiment of the present application, where the present embodiment is applicable to a case where a module board is reversely connected in a screen, and the method can be executed by an information display device of the module board according to the embodiment of the present application, and the information display device can be implemented by software and/or hardware and can be integrated in an electronic device such as a screen. In the following, the technical solution of the present application will be described in detail by taking an LED as an example.
As shown in fig. 1, the information display method of the module board includes:
s110, if the reverse connection module board exists, determining data to be displayed of the reverse connection module board.
One screen can be formed by splicing one or more module boards. The back of the module board is provided with an interface connected with the adapter plate. Wherein, because the engineering demand, at the in-process that the booth apart from the screen display shows, can produce the condition of carrying out the reversal to the module board, in addition, can also be in order to improve the completion speed of engineering, can not distinguish the positive and negative of module board, directly carry out the condition of concatenation installation. In this case, if the module board is driven to display the content in the original manner, the content displayed by the reverse module board may be inverted from the content actually required to be displayed.
Fig. 2 is a schematic structural diagram of an LED display screen provided in an embodiment of the present application. As shown in fig. 2, an adapter plate is disposed in the chassis of the LED display screen, and the adapter plate is provided with four interfaces, which are respectively connected to four module boards of the LED display screen. The case can be also provided with a receiving card which is used for receiving and storing the data to be displayed and displaying the data to be displayed on the module board. In this example, only one module board is connected, and after the other three module boards are connected, a complete LED display screen can be formed and corresponding content can be displayed.
When the existence of the reverse connection module board is identified, the data to be displayed of the reverse connection module board is determined firstly. For example, the LED display screen includes four module boards, and the reverse connection module board is a second module board of the four module boards, that is, a module board above and to the right of the four module boards, and the data to be displayed of the reverse connection module board needs to be determined. For example, the pixel point of each module board includes 128 rows and 128 columns, the 129 th column to 256 th column data from the 1 st row to the 128 th row can be determined as the data to be displayed of the reverse module board.
In this embodiment, optionally, the method further includes: and determining whether the reverse connection module board exists or not by detecting an interface signal for connecting the adapter board and the module board. For example, the receiving card may send a detection signal to the module board through the interface of the adapter board, and determine whether the module board accessed by each interface of the adapter board is a reverse-connection module board according to the received feedback signal. Through the arrangement, whether the reverse connection module board exists in the LED display screen or not and the position of the reverse connection module board can be rapidly detected, so that a basis can be provided for the subsequent processing of data to be displayed.
S120, inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed, and displaying the inverted data to be displayed on the reverse connection module board.
The data to be displayed of the screen comprises the data to be displayed of the reverse connection module board.
And after the data to be displayed of the reverse connection module board is determined, inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed. Specifically, the data to be displayed of the reverse connection module board in the data to be displayed on the screen can be marked, and corresponding inversion processing is performed, wherein the data to be displayed of each pixel point can be marked in the pixel point row and the pixel point column in the reverse connection module board. After the reverse connection, if the last column of the last row of the pixel points of the reverse connection module board is the first column of the first row according to the original mode, the data to be displayed of the reverse connection module board can be subjected to column inversion processing and row inversion processing according to the pixel point row and pixel point column marks, so that the effect of correctly displaying the content in the reverse connection module board can be realized.
In the technical scheme, after the inversion processing is performed, the data to be displayed of the screen can be stored in the receiving card, and the receiving card can send the data to be displayed to each module board through the interface of the adapter board for displaying. Wherein the data stored in the receiving card may be data that has been subjected to an inversion process.
Specifically, the data to be displayed of the screen in the receiving card can be divided according to the positions of the interfaces of the adapter plate, so that the division result of the display content of each module board is obtained, and the division result is sent to the module board through the interfaces of the adapter plate to be displayed. Wherein, each interface only transmits the data to be displayed of the currently connected module board.
Fig. 3 is a schematic diagram of a position of data to be displayed of a reverse connection module board according to an embodiment of the present application. If the pixel point is positive, the pixel point rows are 0, 1, 2 and 3 from top to bottom in sequence, the pixel point columns are 0, 1, 2 and 3 from left to right respectively, and a 4 × 4 pixel point matrix is formed, wherein the display parameter of the module board is assumed to be the range of 4 × 4 pixel points. Then, after the reverse connection, the original 0 row and 0 column is changed from the top left corner of the forward connection to the bottom right corner of the reverse connection, wherein the pixel row and the pixel column are both inverted. Therefore, when data inversion is performed on the reverse connection module board, column inversion processing and row inversion processing need to be performed respectively, so that the data to be displayed on the reverse connection module board can be normal.
The technical scheme that this application provided can adapt to the condition that the module board connects conversely, just can need not to set up two interfaces to the back of every module board, the effectual manufacturing cost who reduces the module board, simultaneously because the module board itself belongs to the component part of little interval LED display screen, reduce the interface design wherein and can be favorable to improving the production efficiency of module board, solved and set up many-sided problems such as the line complicacy of walking that an interface brought more.
According to the technical scheme provided by the embodiment of the application, if the reverse connection module board is identified, the data to be displayed of the reverse connection module board is determined; and inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed, and displaying the inverted data to be displayed on the reverse connection module board. Through adopting the technical scheme that this application provided, can realize no matter the module board of connecing or the transposition, the effect that can both normally show picture content.
On the basis of the above technical solutions, optionally, determining a data range to be displayed of the reverse connection module board in the screen according to the position of the reverse connection module board in the screen and the display parameters of the module board; and determining the data to be displayed of the reverse connection module board according to the data range to be displayed of the reverse connection module board in the screen. The LED display screen may have a plurality of module boards, so that the position of the reverse connection module board needs to be preferentially determined, for example, the position of the reverse connection module board may be determined by the interface position of the adapter board to which the reverse connection module board is connected. And then the data to be displayed of the reverse connection module board can be determined according to the data range to be displayed of the reverse connection module board in the LED display screen. Fig. 4 is a schematic diagram of an LED display screen with a reverse module board provided in an embodiment of the present application. For example, each module board includes 144 rows and 144 columns, and in an LED display screen formed by four module boards, the coordinates of the pixel point at the upper left are (0,0), and the coordinates of the pixel point at the lower right are (287). The pixel points of the reverse connection module board range from 0 row to 143 rows and from 144 columns to 287 columns. The technical scheme has the advantages that the range of the data to be displayed of the reverse connection module board can be determined according to the position and the display parameters of the reverse connection module board, so that subsequent inversion processing is facilitated, and the data processing speed is improved.
On the basis of the above technical solutions, optionally, inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed includes: caching data to be displayed of a screen, and performing row inversion processing on each pixel point data in the data to be displayed of the reverse connection module board; and performing row inversion processing on the data to be displayed of the reverse connection module board after the column inversion processing to obtain inverted data to be displayed. Wherein, the row-column inversion process can be performed first, and the row-column inversion process can also be performed first. Wherein, the advantage of inverting the processing respectively to the ranks can ensure the stability among the data processing process, simultaneously because the module board all is that the pixel matrix is arranged, can improve processing speed like this simultaneously.
On the basis of the above technical solutions, optionally, the area for caching the data to be displayed on the screen includes a first-level cache unit and a second-level cache unit; caching data to be displayed on a screen, and performing row-column inversion processing on each pixel point data in the data to be displayed of the reverse connection module board, wherein the row-column inversion processing comprises the following steps: storing data to be displayed of a screen to a first-level cache unit, performing column inversion processing on the data to be displayed of a reverse connection module board in the first-level cache unit, and storing the data to be displayed after the column inversion processing to a second-level cache unit; the data stored in the first-level cache unit and the second-level cache unit is at least one line of pixel point data in the data to be displayed of the screen; the data stored in the first-level cache unit and the second-level cache unit is at least one line of pixel point data in the data to be displayed of the screen.
On the basis of the above technical solutions, optionally, after performing secondary caching on the data to be displayed after the column inversion processing, the method further includes: and if the data stored in the current secondary cache unit comprises the data to be displayed of the reverse connection module board, determining the number of rows after the row inversion processing according to the number of rows of the data stored in the current secondary cache unit in the data to be displayed of the reverse connection module board, so as to obtain the inverted data to be displayed.
The first-level cache unit and the second-level cache unit may cache one line of pixel point data at a time, may also cache two or more lines of pixel point data, and may be specifically determined according to the size of the storage space of the cache unit. When the first-level cache unit caches one or more lines at each time, the column inversion can be carried out on the pixel point data in the range of the reverse connection module board, the one or more lines of data after the column inversion processing are stored in the second-level cache unit, and then the line inversion is carried out on the data and the data are stored in the receiving card. According to the technical scheme, the speed and the accuracy of the inversion processing of the pixel points can be improved through the arrangement, so that the normal display of the content of the display screen is ensured.
On the basis of the above technical solutions, optionally, the position of the data to be displayed of the reverse connection module board, which is stored in the second-level cache unit after column inversion processing, is calculated by using the following formula:
COL1＝COL_START+COL_END-COL0；
wherein, COL1 is the second level cache pixel column position, COL _ START is the initial column of data to be displayed of the reverse connection module board, COL _ END is the ending column of data to be displayed of the reverse connection module board, and COL0 is the first level cache pixel column position.
Fig. 5 is a schematic diagram of a column inversion process provided in an embodiment of the present application. Among them, columns 0 to 143 are the first module boards, and the access mode is the forward connection, so the inversion process is not needed, and columns 144 to 287 are the second module boards, and the access mode is the reverse connection, so the inversion process is needed. After the inversion process, column 287 is transformed to column 144, column 286 is transformed to column 145, and so on. And the data after the column inversion processing may be stored to the second buffer unit.
On the basis of the above technical solutions, optionally, the position of storing the data to be displayed of the reverse connection module board into the receiving card is calculated by using the following formula:
D＝(ROW_START+ROW_END-ROW1)·ROW_STRIDE+COL1·N；
d is a storage position in the receiving card, ROW _ START is a to-be-displayed data START line of the reverse connection module board, ROW _ END is a to-be-displayed data stop line of the reverse connection module board, ROW1 is a cached pixel point line position, ROW _ STRIDE is an address space occupied by each line of pixel points, COL1 is a secondary cache pixel point column position, and N is an address space occupied by each pixel point. Wherein the actual storage location of the data may be determined from the calculated location. Where the location of the data in the level two cache may be the COL1 th column and the row number may be its row location in the data to be displayed of the screen.
Fig. 6 is a schematic structural diagram of an information display device of a module board according to an embodiment of the present application. As shown in fig. 6, the information display device of the module board includes:
the reverse connection module board data determining module 610 is configured to determine data to be displayed of a reverse connection module board if the reverse connection module board is identified;
and the inversion processing module 620 is configured to invert the data to be displayed on the reverse connection module board to obtain inverted data to be displayed, and display the inverted data to be displayed on the reverse connection module board.
And the display module 630 is configured to send the data to be displayed on the screen to the module board through the adapter board for displaying.
The data to be displayed on the screen can be stored in the receiving card, and taking the LED display screen as an example, the data to be displayed on the screen can be preferentially sent out from the receiving card and sent to the module board through the adapter board for displaying.
According to the technical scheme provided by the embodiment of the application, if the reverse connection module board is identified, the data to be displayed of the reverse connection module board is determined; and inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed, and displaying the inverted data to be displayed on the reverse connection module board. Through adopting the technical scheme that this application provided, can realize no matter the module board of connecing or the transposition, the effect that can both normally show picture content.
The product can execute the method provided by any embodiment of the application, and has the corresponding functional module and the beneficial effect of the execution method.
Embodiments of the present application also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a method for displaying information of a module board, the method including:
if the reverse connection module board exists, determining data to be displayed of the reverse connection module board;
and inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed, and displaying the inverted data to be displayed on the reverse connection module board.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in the computer system in which the program is executed, or may be located in a different second computer system connected to the computer system through a network (such as the internet). The second computer system may provide the program instructions to the computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided in the embodiments of the present application contains computer-executable instructions, and the computer-executable instructions are not limited to the information display operation of the module board described above, and may also perform related operations in the information display method of the module board provided in any embodiments of the present application.
The embodiment of the application provides electronic equipment, and an information display device of a module board provided by the embodiment of the application can be integrated in the electronic equipment. Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 7, the present embodiment provides an electronic device 700, which includes: one or more processors 720; the storage device 710 is configured to store one or more programs, and when the one or more programs are executed by the one or more processors 720, the one or more processors 720 implement the method for displaying information of the module board provided in the embodiment of the present application, the method includes:
if the reverse connection module board exists, determining data to be displayed of the reverse connection module board;
and inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed, and displaying the inverted data to be displayed on the reverse connection module board.
Of course, those skilled in the art can understand that the processor 720 also implements the technical solution of the information display method of the module board provided in any embodiment of the present application.
The electronic device 700 shown in fig. 7 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
As shown in fig. 7, the electronic device 700 includes a processor 720, a storage 710, an input 730, and an output 740; the number of the processors 720 in the electronic device may be one or more, and one processor 720 is taken as an example in fig. 7; the processor 720, the storage device 710, the input device 730, and the output device 740 in the electronic apparatus may be connected by a bus or other means, and are exemplified by a bus 750 in fig. 7.
The storage device 710 is a computer-readable storage medium, and can be used to store software programs, computer-executable programs, and module units, such as program instructions corresponding to the information display method of the module board in the embodiment of the present application.
The storage device 710 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 required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the storage 710 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 non-volatile solid state storage device. In some examples, storage 710 may further include memory located remotely from processor 720, which may be connected via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 730 may be used to receive input numbers, character information, or voice information, and to generate key signal inputs related to user settings and function control of the electronic apparatus. The output device 740 may include a display screen, speakers, etc.
The electronic equipment provided by the embodiment of the application realizes the effect of normally displaying the picture content no matter the module board is connected or connected reversely.
The information display device, the medium, and the electronic device of the module board provided in the above embodiments may execute the information display method of the module board provided in any embodiment of the present application, and have corresponding functional modules and advantageous effects for executing the method. For technical details that are not described in detail in the above embodiments, reference may be made to an information display method of a module board provided in any embodiment of the present application.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (10)
1. An information display method of a module board is characterized by comprising the following steps:
if the reverse connection module board exists, determining data to be displayed of the reverse connection module board;
and inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed, and displaying the inverted data to be displayed on the reverse connection module board.
2. The method of claim 1, wherein determining data to be displayed for the reverse module board comprises:
determining a data range to be displayed of the reverse connection module board in the screen according to the position of the reverse connection module board in the screen and the display parameters of the module board;
and determining the data to be displayed of the reverse connection module board according to the data range to be displayed of the reverse connection module board in the screen.
3. The method according to claim 1, wherein inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed comprises:
caching data to be displayed of a screen, and performing row inversion processing on each pixel point data in the data to be displayed of the reverse connection module board;
and performing row inversion processing on the data to be displayed of the reverse connection module board after the column inversion processing to obtain inverted data to be displayed.
4. The method according to claim 3, wherein the area for caching the data to be displayed of the screen comprises a first level cache unit and a second level cache unit; caching data to be displayed on a screen, and performing row-column inversion processing on each pixel point data in the data to be displayed of the reverse connection module board, wherein the row-column inversion processing comprises the following steps:
storing data to be displayed of a screen to a first-level cache unit, performing column inversion processing on the data to be displayed of a reverse connection module board in the first-level cache unit, and storing the data to be displayed after the column inversion processing to a second-level cache unit; the data stored in the first-level cache unit and the second-level cache unit is at least one line of pixel point data in the data to be displayed of the screen.
5. The method of claim 4, wherein after the column inversion processed data to be displayed is cached in the second level, the method further comprises:
and if the data stored in the current secondary cache unit comprises the data to be displayed of the reverse connection module board, determining the number of rows after the row inversion processing according to the number of rows of the data stored in the current secondary cache unit in the data to be displayed of the reverse connection module board, so as to obtain the inverted data to be displayed.
6. The method of claim 4,
the column inversion processing is carried out on the data to be displayed of the reverse connection module board by adopting the following formula:
COL1＝COL_START+COL_END-COL0；
wherein, COL1 is the second level cache pixel column position, COL _ START is the initial column of data to be displayed of the reverse connection module board, COL _ END is the ending column of data to be displayed of the reverse connection module board, and COL0 is the first level cache pixel column position.
7. The method of claim 6,
and (3) calculating to-be-displayed data of the reverse connection module board by adopting the following formula to perform row inversion processing:
D＝(ROW_START+ROW_END-ROW1)·ROW_STRIDE+COL1·N；
d is the storage position of inverted data to be displayed, ROW _ START is the initial line of the data to be displayed of the reverse connection module board, ROW _ END is the ending line of the data to be displayed of the reverse connection module board, ROW1 is the line position of the cached pixel points, ROW _ STRIDE is the address space occupied by each line of pixel points, COL1 is the column position of the secondary cached pixel points, and N is the address space occupied by each pixel point.
8. The method of any of claims 1-7, wherein identifying the presence of a reverse-connect module board comprises:
and determining whether the reverse connection module board exists or not by detecting an interface signal for connecting the adapter board and the module board.
9. An information display device of a module board, comprising:
the data determining module of the reverse connection module board is used for determining the data to be displayed of the reverse connection module board if the reverse connection module board is identified;
and the inversion processing module is used for inverting the data to be displayed of the reverse connection module board to obtain inverted data to be displayed and displaying the inverted data to be displayed on the reverse connection module board.
10. The apparatus of claim 9, further comprising:
and the display module is used for sending the data to be displayed of the screen to the module board for displaying.
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