CN113539193B - Liquid crystal display control method and device and computer readable storage medium - Google Patents
Liquid crystal display control method and device and computer readable storage medium Download PDFInfo
- Publication number
- CN113539193B CN113539193B CN202010322611.3A CN202010322611A CN113539193B CN 113539193 B CN113539193 B CN 113539193B CN 202010322611 A CN202010322611 A CN 202010322611A CN 113539193 B CN113539193 B CN 113539193B
- Authority
- CN
- China
- Prior art keywords
- memory array
- displayed
- liquid crystal
- crystal display
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3607—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 by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
Abstract
The application discloses a liquid crystal display control method, a liquid crystal display control device and a computer readable storage medium, wherein the method comprises the steps of receiving input data, and writing corresponding data into a preset memory array according to the input data; sending data in a preset memory array to the liquid crystal display module so that a driver in the liquid crystal display module drives a liquid crystal display screen in the liquid crystal display module to display according to a preset address mapping table; the preset address mapping table comprises addresses of preset memory arrays and addresses of corresponding pixel arrays of the liquid crystal display screen. By means of the mode, the display response speed can be improved, and the operation on a hardware interface is reduced.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a method and an apparatus for controlling liquid crystal display, and a computer-readable storage medium.
Background
In Display drivers, particularly low-end Display devices such as Liquid Crystal Displays (LCDs), a general Display scheme is to Display in real time according to coordinates, which is very redundant in the program operation process and complicated in program structure; the LCD shows that the reality is the dot matrix display, the minimum display element is a pixel, present simple display scheme is that the region that will show is directly filled into the pattern that will show, and chinese character, digit or letter need adopt different types of matrix to show, the screen just refreshes once every time shows a type of matrix, keep the operation to the hardware immediately, if refresh time interval sets up improperly, can cause and show the scintillation, improve the refresh rate and can solve the scintillation problem, but increased the energy consumption, and the display device of low end has strict demand to the consumption.
Disclosure of Invention
The application provides a liquid crystal display control method, a liquid crystal display control device and a computer readable storage medium, which can improve the response speed of display and reduce the operation on a hardware interface.
In a first aspect, the present application provides a method for controlling a liquid crystal display, the method comprising: receiving input data, and writing corresponding data into a preset memory array according to the input data; sending data in a preset memory array to the liquid crystal display module so that a driver in the liquid crystal display module drives a liquid crystal display screen in the liquid crystal display module to display according to a preset address mapping table; the preset address mapping table comprises addresses of a preset memory array and addresses of a corresponding pixel array of the liquid crystal display screen.
In a second aspect, the present application provides a method for controlling a liquid crystal display, the method being applied to a liquid crystal display module, the liquid crystal display module including a driver and a liquid crystal display screen connected to each other, the method including: the driver receives a preset address mapping table and data in a preset memory array sent by the micro control unit, wherein the preset address mapping table comprises an address of the preset memory array and an address of a corresponding pixel array of the liquid crystal display screen; and the driver drives the liquid crystal display screen to display according to the preset address mapping table and the data in the preset memory array.
In a third aspect, the present application provides a liquid crystal display control apparatus, which includes a memory and a processor connected to each other, wherein the memory is used for storing a computer program, and the computer program is used for implementing the liquid crystal display control method when being executed by the processor.
In a fourth aspect, the present application provides a computer-readable storage medium for storing a computer program for implementing the above-described liquid crystal display control method when the computer program is executed by a processor.
Through the scheme, the beneficial effects of the application are that: writing data into a preset memory array, and sending the data in the preset memory array to the liquid crystal display module at one time, wherein the driver can drive the liquid crystal display screen to display by using a preset address mapping table and the data in the preset memory array; because the data to be displayed is written into the liquid crystal display module at one time, the response speed of display is high, and the times of operating a hardware interface are reduced, so that the utilization rate of the micro control unit is reduced, and the reduction of power consumption is facilitated; because the data to be displayed are concentrated for the micro control unit to process at one time, the proportion of the micro control unit occupied by the display task is reduced, so that the micro control unit has more capability of processing other tasks, and the utilization rate of the micro control unit for processing other tasks is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
FIG. 1 is a schematic flow chart diagram illustrating an embodiment of a method for controlling a liquid crystal display provided in the present application;
FIG. 2 is a schematic structural diagram of a micro control unit and a liquid crystal display module according to the present disclosure;
FIG. 3 (a) is a schematic diagram of an image to be displayed in the embodiment shown in FIG. 1;
FIG. 3 (b) is a graph showing the gray scale values of the image to be displayed in FIG. 3 (a);
FIG. 4 is a schematic flow chart illustrating a liquid crystal display control method according to another embodiment of the present disclosure;
FIG. 5 is a schematic flow chart of step 43 in the embodiment shown in FIG. 4;
FIG. 6 is another schematic flow chart of step 43 in the embodiment shown in FIG. 4;
FIG. 7 is a schematic flow chart diagram illustrating a liquid crystal display control method according to another embodiment of the present disclosure;
FIG. 8 is a schematic structural diagram of an embodiment of an LCD control apparatus provided in the present application;
FIG. 9 is a schematic structural diagram of an embodiment of a computer-readable storage medium provided in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic flow chart of an embodiment of a liquid crystal display control method provided in the present application, and fig. 2 is a schematic structural diagram of a micro control unit and a liquid crystal display module provided in the present application, where the method includes:
step 11: and receiving input data, and writing corresponding data into the preset memory array according to the input data.
The method is applicable to a Micro Control Unit (MCU) 10, executed by the MCU 10; specifically, to implement the display, the mcu 10 may receive input data transmitted from an external device, the input data being related to an image to be displayed, and then write data related to the input data, which may be recorded as data to be displayed, into a preset memory array set in advance.
In a specific embodiment, the micro control unit 10 can directly write the input data into the predetermined memory array, that is, the input data is the same as the data to be displayed; for example, as shown in fig. 3, the image to be displayed is the letter "E", the input data is the gray scale value corresponding to the letter "E", and the micro control unit 10 can write the corresponding gray scale values a11-a54 into the corresponding positions in the preset memory array after receiving the input data.
In other embodiments, the mcu 10 may process the input data to obtain processed data, which may be the same as or include the data to be displayed.
Step 12: and sending the data in the preset memory array to the liquid crystal display module so that a driver in the liquid crystal display module drives a liquid crystal display screen in the liquid crystal display module to display according to the preset address mapping table.
The preset address mapping table is a pre-established address mapping table, and includes an address of a preset memory array and an address of a pixel array of the corresponding liquid crystal display screen 22; after writing data into the preset memory array, the data in the preset memory array can be sent to a liquid crystal display Module (LCM, LCD Module) 20 as a whole, the liquid crystal display Module 20 includes a driver 21 and a liquid crystal display 22 which are connected with each other, the driver 21 is connected with the micro control unit 10, the driver 21 is used for driving the liquid crystal display 22 to emit light, the liquid crystal display 22 includes a pixel array, the pixel array includes a plurality of pixel units, and each pixel unit corresponds to one light emitting unit.
In a specific embodiment, the mcu 10 can receive the preset sent from the external deviceThe address mapping table or the self-established preset address mapping table sends the preset address mapping table to the driver 21 after the preset address mapping table is obtained; because the address of the preset memory array corresponds to the address of the pixel array in the liquid crystal display 22, the driver 21 can drive the corresponding light-emitting unit in the liquid crystal display 22 to emit light according to the preset address mapping table and the received data in the preset memory array; for example, the predetermined memory array stores 4 data D 1 -D 4 The corresponding addresses are respectively A 1 -A 4 The addresses of the pixel array are respectively B 1 -B 4 The pixel array corresponds to 4 light-emitting units L1-L4, address A i And address B i Corresponding to (i = 1-4), data D 1 、D 3 And D 4 Is 1, data D 2 And is 0, the driver 21 can drive the light emitting units L1, L3, and L4 to emit light, thereby implementing display.
In this embodiment, data is written into the preset memory array, and then the data in the preset memory array is sent to the liquid crystal display module 20 at one time, and the driver 21 can drive the liquid crystal display 22 to display by using the preset address mapping table and the data in the preset memory array; because the data to be displayed is written into the liquid crystal display module 20 at one time, the response speed of display is high, and the operation on a hardware interface is reduced, so that the utilization rate of the micro control unit 10 is reduced, and the reduction of power consumption is facilitated; data exchange is carried out in a cache mode, meanwhile, data to be displayed are concentrated to be processed by the micro control unit 10 at one time, the proportion of the micro control unit 10 occupied by the display task is reduced, the micro control unit 10 is enabled to have more capability of processing other tasks, such as sampling and the like, and therefore the utilization rate of the micro control unit 10 for processing other tasks is improved.
Referring to fig. 4, fig. 4 is a schematic flowchart illustrating another embodiment of a liquid crystal display control method provided in the present application, the method including:
step 41: and opening up a part of memory space in the memory of the micro-control unit as a preset memory array.
The preset memory array is a part of the memory in the micro control unit, the micro control unit can open a memory in the memory as the preset memory array, the preset memory array corresponds to the pixel array of the liquid crystal display screen, the preset memory array comprises a plurality of memory units, and the pixel array comprises a plurality of pixel units.
In a specific embodiment, the size of the preset memory array is the same as the size of the pixel array, and the memory units in the preset memory array correspond to the pixel units in the pixel array one to one; for example, the preset memory array includes 128 × 64 memory cells, the size of the pixel array is the same as that of the preset memory array, the preset memory array includes 128 × 64 pixel cells, each memory cell corresponds to one pixel cell, and data in the memory cells are the same as data corresponding to the pixel cells.
In another specific embodiment, in order to save the memory space, the size of the preset memory array may be set smaller than the size of the pixel array, the row/column number of the pixel array is a preset integer multiple of the row/column number of the preset memory array, the preset integer multiple is greater than 1, and each memory unit in the preset memory array corresponds to a continuous preset integer multiple of pixel units in the pixel array along the row/column direction; for example, the pixel array includes 128 × 64 pixel units, the preset integer is 8, and data corresponding to 8 consecutive pixel units can be stored in one memory unit according to the row/column sequence, so that the preset memory array includes 128 × 8 or 16 × 64 memory units, the state of the pixel can be the same as the value of each binary bit, and information of the pixel can be recorded by fully utilizing each binary bit, thereby reducing the original memory space by 8 times.
In other embodiments, in order to store more data, the size of the preset memory array may be larger than that of the pixel array, that is, one pixel unit corresponds to a plurality of memory units; for example, the input data is a gray level value of a color image, each memory cell can store one gray level value of one pixel unit at the time, and one pixel unit corresponds to 3 memory cells, so that the storage of R, G and B gray level values is realized.
Step 42: and establishing a mapping relation between the address of the preset memory array and the address of the pixel array to obtain a preset address mapping table, and sending the preset address mapping table to the liquid crystal display module.
The micro control unit can establish a mapping relation between the address information of the preset memory array and the address information of the pixel array in advance according to the address information of the preset memory array and the address information of the pixel array, generate a preset address mapping table and send the preset address mapping table to the driver, so that the driver can control the liquid crystal display screen to display according to the preset address mapping table.
Step 43: and receiving input data, and writing corresponding data into the preset memory array according to the input data.
The input data comprises a gray value of an image to be displayed, and the image to be displayed can be a binary image, a gray image or a color image; for a binary image, the gray value has only two values, such as 0 and 1, and since human eyes cannot distinguish the gray value 0 from the gray value 1, in order to facilitate human eyes to observe the image to be displayed, the micro control unit may amplify the gray value so that the difference between the two gray values is increased, so as to facilitate human eyes to observe, for example, to 0 and 255.
In a specific embodiment, as shown in fig. 5, the step of writing the corresponding data into the predetermined memory array according to the input data includes steps 431a to 433a:
In order to display the image to be displayed in a full screen mode, the size relationship between the size of the image to be displayed and the size of the preset memory array can be judged first, so that whether the image to be displayed needs to be enlarged or reduced or not can be judged.
If the size of the image to be displayed is not equal to the size of the preset memory array, it indicates that the size of the image to be displayed is not matched with the size of the preset memory array, and in order to display the image to be displayed on the liquid crystal display screen in a full screen manner, the micro control unit can perform interpolation on the image to be displayed to obtain an enlarged or reduced image, wherein the size of the image is the same as the size of the preset memory array.
After the processed image to be displayed is obtained, the gray value of the processed image to be displayed can be written into the preset memory array.
In another specific embodiment, the input data includes gray-level values of at least two images to be displayed and a position of each image to be displayed, as shown in fig. 6, the step of writing corresponding data into the predetermined memory array according to the input data includes steps 431b to 434b:
In order to prevent the images to be displayed from being shielded from each other and influence the display effect, whether image overlapping occurs can be judged according to the position and the size of the images to be displayed, and if the positions of the pixels of any two images to be displayed are partially overlapped with the positions of the pixels of other images to be displayed, the two images to be displayed are overlapped; for example, the abscissa of the upper left corner of the image A to be displayed is x1, the width of the image A to be displayed is M, and the abscissa of the upper left corner of the image B to be displayed is x2, the abscissa of the lower left corner of the image A to be displayed is x1+ M-1, and if x1 is greater than or equal to x2 is greater than or equal to x1+ M-1, the image A to be displayed is overlapped with the image B; if there is an image overlap, step 433b may be performed.
Because the input data comprises data corresponding to at least two images to be displayed, in order to prevent the preset memory array from being incapable of storing the data of all the images to be displayed, whether the positions of all the pixels in each image to be displayed have corresponding positions in the preset memory array can be judged; specifically, the position and the size of each image to be displayed are used for judging whether the position of each pixel in the image to be displayed exceeds the length or the width of a preset memory array or not, if the position of a certain pixel in the image to be displayed exceeds the length or the width of the preset memory array, the position of the pixel is indicated to have no corresponding position in the preset memory array, and the image to be displayed needs to be reduced; if the positions of all pixels in the image to be displayed have corresponding positions in the preset memory array, the preset memory array is indicated to be capable of storing the data of the image to be displayed, and the reduction processing is not needed.
If the pixel position in the image to be displayed does not have the corresponding position in the preset memory array, the preset memory array cannot store the image to be displayed according to the position of the image to be displayed in the input data, and in order to display all the images to be displayed, the image to be displayed can be reduced by utilizing the position of the image to be displayed, so that the pixel position in the processed image to be displayed has the corresponding position in the preset memory array; for example, the input data includes gray values of images a and B to be displayed and positions of upper left corners, the position of the image B to be displayed is 25 th to 36 th rows, the preset memory array includes 32 × 32 memory cells, data of 33 th to 36 th rows of the image B to be displayed cannot be stored in the corresponding memory cells, at this time, the upper left corner can be used as a fixed point to scale the image B to be displayed, so that an image C to be displayed is generated, and the position of the image C to be displayed is 25 th to 32 th rows.
In one embodiment, to simplify the data input, only two values may be written into the default memory array: the first data value and the second data value are used for judging whether the gray value of each pixel in the processed image to be displayed is larger than a preset gray value, wherein the preset gray value can be a value preset by a user, such as 128; if the gray value of each pixel in the image to be displayed is greater than a preset gray value, writing a first data value into a position corresponding to the position of the pixel in a preset memory array; if the gray value of each pixel in the image to be displayed is smaller than or equal to the preset gray value, writing a second data value into a position corresponding to the position of the pixel in the preset memory array; specifically, the first data value and the second data value are 0 and 1, respectively, or the first data value and the second data value are 1 and 0, respectively.
It is understood that, in other embodiments, the gray-level value of the image to be displayed may also be directly written into the preset memory array.
Step 44: and sending the data in the preset memory array to the liquid crystal display module so that a driver in the liquid crystal display module drives a liquid crystal display screen in the liquid crystal display module to display according to the preset address mapping table.
The method has the advantages that the read-write operation is directly carried out on the preset memory array in the data processing process, the direct operation of the micro-control unit on the liquid crystal display module is reduced, the data in the preset memory array are uniformly written into the liquid crystal display module, the data can be refreshed into the liquid crystal display module for display once when the preset memory array is operated, meanwhile, the preset memory array can be directly read for obtaining the data to be displayed due to the fact that the data in the liquid crystal display module is the same as the data in the preset memory array, the operation on the liquid crystal display module is reduced, the utilization rate of the micro-control unit can be greatly reduced in the application of displaying a large amount of data, reading a large amount of data or frequently operating the liquid crystal display module, and therefore power consumption is reduced; and the operation to the liquid crystal display module only writes in, and need not to carry out reading operation, has reduced half to the amount of operation of hardware interface, helps prolonging the life of hardware interface.
Referring to fig. 7, fig. 7 is a schematic flowchart illustrating a liquid crystal display control method according to another embodiment of the present application, the method is applied to a liquid crystal display module, the liquid crystal display module includes a driver and a liquid crystal display screen connected to each other, and the method includes:
step 71: the driver receives a preset address mapping table and data in a preset memory array sent by the micro control unit.
The micro control unit can receive a preset address mapping table sent by external equipment or automatically establish the preset address mapping table, wherein the preset address mapping table comprises an address of a preset memory array and an address of a corresponding pixel array of the liquid crystal display screen; after writing data into the preset memory array, the micro control unit sends the data in the preset memory array to the driver, and the driver receives the data so as to drive the liquid crystal display screen to display.
Step 72: and the driver drives the liquid crystal display screen to display according to the preset address mapping table and the data in the preset memory array.
After receiving the preset address mapping table and the data in the preset memory array, the driver can drive the corresponding light-emitting unit in the liquid crystal display to emit light by using the data in the preset memory array and the corresponding relation between the address of the preset memory array and the address of the pixel array.
In a specific embodiment, the data in the preset memory array includes 0 or 1, and when the driver acquires the data 0, the light-emitting unit corresponding to the address is not lighted; when the driver acquires data 1, the light-emitting unit corresponding to the address is lit, thereby realizing display.
It can be understood that the preset memory array may further include other display characteristics such as color and brightness of display, and is not limited to the preset memory array for storing lighting and turning-off information, and in practical applications, the preset memory array may be adjusted according to specific requirements.
In the embodiment, the display of the liquid crystal display screen is controlled by adopting an address mapping mode, the method can be adopted to process all display operations, the display problem is solved by utilizing a software method, the frequent operation of the micro-control unit on a hardware interface is reduced, the complicated hardware operation is changed into the simple operation only on the memory, the efficiency of the micro-control unit is improved, and the power consumption of the micro-control unit is reduced; all the operations on the liquid crystal display module can be converted into the operations on the opened preset memory array, the operation of bottom layer driving is not needed to be concerned, data in the preset memory array is mapped into the liquid crystal display module at one time, the idea of layered operation reduces the coupling of programs, and meanwhile, only the bottom layer driving needs to be changed for later transplantation or the change of the model of the liquid crystal display module, so that the later-stage maintenance of products is facilitated, and the readability and the robustness of program codes are improved.
Referring to fig. 8, fig. 8 is a schematic structural diagram of an embodiment of the liquid crystal display control device provided in the present application, the liquid crystal display control device 80 includes a memory 81 and a processor 82 connected to each other, the memory 81 is used for storing a computer program, and the computer program is used for implementing the liquid crystal display control method in the foregoing embodiment when being executed by the processor 82.
The liquid crystal display control device 80 in this embodiment controls the display of the liquid crystal display module by opening up the preset memory array corresponding to the liquid crystal display module, because the memory is directly operated, the response speed is relatively fast, the memory fragments are reduced, the problems that the response of the low-end liquid crystal display is slow and the smear is displayed can be solved, because the liquid crystal display module is written with data at one time, the operation times of the hardware interface is reduced, and the service life of the hardware interface is prolonged.
Referring to fig. 9, fig. 9 is a schematic structural diagram of an embodiment of a computer-readable storage medium 90 provided in the present application, where the computer-readable storage medium 90 is used for storing a computer program 91, and the computer program 91 is used for implementing the liquid crystal display control method in the foregoing embodiment when being executed by a processor.
The computer-readable storage medium 90 may be a server, a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and various media capable of storing program codes.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules or units is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above embodiments are merely examples, and not intended to limit the scope of the present application, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present application, or those directly or indirectly applied to other related arts, are included in the scope of the present application.
Claims (9)
1. A liquid crystal display control method is characterized by comprising the following steps:
receiving input data, and writing corresponding data into a preset memory array according to the input data;
sending the data in the preset memory array to a liquid crystal display module so that a driver in the liquid crystal display module drives a liquid crystal display screen in the liquid crystal display module to display according to a preset address mapping table;
the preset address mapping table comprises an address of the preset memory array and an address of a corresponding pixel array of the liquid crystal display screen;
the input data comprise gray values of at least two images to be displayed and the position of each image to be displayed;
the step of writing corresponding data into a preset memory array according to the input data comprises:
judging whether image overlapping exists according to the position and the size of the image to be displayed;
if no image overlap exists, judging whether the position of a pixel in the image to be displayed corresponds to the position in the preset memory array or not;
if not, performing scaling processing on at least one image to be displayed according to the position of the image to be displayed, so that the position of a pixel in the processed image to be displayed corresponds to the position in the preset memory array, and the processed images to be displayed are not overlapped;
and writing corresponding data into the preset memory array according to the processed gray value of the image to be displayed.
2. The method according to claim 1, wherein the predetermined memory array is a part of a memory in a micro control unit, and the step of receiving the input data comprises:
opening up a part of memory space in the memory of the micro control unit as the preset memory array;
establishing a mapping relation between the address of the preset memory array and the address of the pixel array to obtain a preset address mapping table;
and sending the preset address mapping table to the liquid crystal display module.
3. The method according to claim 1, wherein the input data includes a gray scale value of an image to be displayed, and the step of writing corresponding data into a preset memory array according to the input data includes:
judging whether the size of the image to be displayed is equal to that of the preset memory array or not;
if the size of the image to be displayed is not equal to that of the preset memory array, zooming the image to be displayed to obtain a processed image to be displayed;
and writing corresponding data into the preset memory array according to the processed gray value of the image to be displayed.
4. The method according to claim 3, wherein the step of writing corresponding data into the preset memory array according to the processed gray-level value of the image to be displayed includes:
judging whether the gray value of each pixel in the processed image to be displayed is larger than a preset gray value or not;
if so, writing a first data value into a position corresponding to the position of the pixel in the preset memory array;
and if not, writing a second data value into a position corresponding to the position of the pixel in the preset memory array.
5. The liquid crystal display control method according to claim 1,
the size of the preset memory array is the same as that of the pixel array, and the memory units in the preset memory array correspond to the pixel units in the pixel array one to one.
6. The liquid crystal display control method according to claim 1,
the size of the preset memory array is smaller than that of the pixel array, the pixel array comprises a plurality of pixel units, the number of rows/columns of the pixel array is a preset integral multiple of the number of rows/columns of the preset memory array, and each memory unit in the preset memory array corresponds to the preset integral multiple of pixel units which are continuous along the row/column direction in the pixel array.
7. A liquid crystal display control method is applied to a liquid crystal display module, wherein the liquid crystal display module comprises a driver and a liquid crystal display screen which are connected with each other, and the method comprises the following steps:
the driver receives a preset address mapping table sent by the micro control unit, receives input data, and writes corresponding data into a preset memory array according to the input data, wherein the preset address mapping table comprises an address of the preset memory array and an address of a corresponding pixel array of the liquid crystal display screen, and the input data comprises gray values of at least two images to be displayed and the position of each image to be displayed;
the driver drives the liquid crystal display screen to display according to the preset address mapping table and the data in the preset memory array;
the step of writing corresponding data into a preset memory array according to the input data comprises:
judging whether image overlapping exists according to the position and the size of the image to be displayed;
if no image overlap exists, judging whether the position of a pixel in the image to be displayed corresponds to the position in the preset memory array or not;
if not, performing scaling processing on at least one image to be displayed according to the position of the image to be displayed, so that the position of a pixel in the processed image to be displayed corresponds to the position in the preset memory array, and the processed images to be displayed are not overlapped;
and writing corresponding data into the preset memory array according to the processed gray value of the image to be displayed.
8. A liquid crystal display control apparatus comprising a memory and a processor connected to each other, wherein the memory is configured to store a computer program, and the computer program is configured to implement the liquid crystal display control method according to any one of claims 1 to 7 when executed by the processor.
9. A computer-readable storage medium storing a computer program, wherein the computer program is configured to implement the liquid crystal display control method according to any one of claims 1 to 7 when executed by a processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322611.3A CN113539193B (en) | 2020-04-22 | 2020-04-22 | Liquid crystal display control method and device and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322611.3A CN113539193B (en) | 2020-04-22 | 2020-04-22 | Liquid crystal display control method and device and computer readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113539193A CN113539193A (en) | 2021-10-22 |
| CN113539193B true CN113539193B (en) | 2023-01-31 |
Family
ID=78123937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010322611.3A Active CN113539193B (en) | 2020-04-22 | 2020-04-22 | Liquid crystal display control method and device and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113539193B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08272351A (en) * | 1995-03-31 | 1996-10-18 | Victor Co Of Japan Ltd | Picture processor |
| CN1659591A (en) * | 2002-06-03 | 2005-08-24 | 皇家飞利浦电子股份有限公司 | Adaptive scaling of video signals |
| JP2012255853A (en) * | 2011-06-08 | 2012-12-27 | Panasonic Corp | Liquid crystal control device |
| WO2016095246A1 (en) * | 2014-12-18 | 2016-06-23 | 深圳Tcl数字技术有限公司 | Method and device for displaying window of screen |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5721565A (en) * | 1994-04-29 | 1998-02-24 | Proxima Corporation | Zooming protection display control system and method of using same |
| JP2001324964A (en) * | 2000-05-16 | 2001-11-22 | Toshiba Lsi System Support Kk | Gradation display lcd controller |
| US7079160B2 (en) * | 2001-08-01 | 2006-07-18 | Stmicroelectronics, Inc. | Method and apparatus using a two-dimensional circular data buffer for scrollable image display |
| US7728840B2 (en) * | 2003-09-04 | 2010-06-01 | Texas Instruments Incorporated | Sliding data buffering for image processing |
| KR100712542B1 (en) * | 2005-12-20 | 2007-04-30 | 삼성전자주식회사 | Driving ic for display device and driving method thereof |
| KR101326778B1 (en) * | 2006-09-19 | 2013-11-08 | 삼성전자주식회사 | Method and apparatus for driving display data |
| CN101950523B (en) * | 2010-09-21 | 2013-10-16 | 上海大学 | Adjustable rectangular window image scaling method and device |
| CN103035219B (en) * | 2012-12-25 | 2015-10-28 | 广东威创视讯科技股份有限公司 | The reading/writing method of dot matrix type liquid crystal display and device |
| EP2804144A1 (en) * | 2013-05-16 | 2014-11-19 | SMR Patents S.à.r.l. | Method and device for processing input image data |
| CN105489194B (en) * | 2015-11-24 | 2018-09-04 | 小米科技有限责任公司 | A kind of method and apparatus of display image |
| CN106157866B (en) * | 2016-06-08 | 2019-03-08 | 深圳瀚星翔科技有限公司 | The display driving method and device of electronic atomization device midpoint matrix display |
| KR20180092000A (en) * | 2017-02-07 | 2018-08-17 | 삼성디스플레이 주식회사 | Display device and driving method thereof |
| CN109992226B (en) * | 2017-12-29 | 2022-05-13 | 浙江宇视科技有限公司 | Image display method and device and spliced display screen |
| CN109752839B (en) * | 2018-12-18 | 2021-06-08 | 华为技术有限公司 | Processor, display control device, system, image processing method and device |
| CN110007887B (en) * | 2019-04-11 | 2022-08-23 | 广州驷骏精密设备股份有限公司 | Display method based on spliced screen, spliced screen and spliced screen system |
-
2020
- 2020-04-22 CN CN202010322611.3A patent/CN113539193B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08272351A (en) * | 1995-03-31 | 1996-10-18 | Victor Co Of Japan Ltd | Picture processor |
| CN1659591A (en) * | 2002-06-03 | 2005-08-24 | 皇家飞利浦电子股份有限公司 | Adaptive scaling of video signals |
| JP2012255853A (en) * | 2011-06-08 | 2012-12-27 | Panasonic Corp | Liquid crystal control device |
| WO2016095246A1 (en) * | 2014-12-18 | 2016-06-23 | 深圳Tcl数字技术有限公司 | Method and device for displaying window of screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113539193A (en) | 2021-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8237733B2 (en) | Page transition on electronic paper display | |
| US5956049A (en) | Hardware that rotates an image for portrait-oriented display | |
| US8466927B2 (en) | Full framebuffer for electronic paper displays | |
| US8587597B2 (en) | Page transitions on electronic paper displays | |
| JPH03134700A (en) | Display unit | |
| US8629879B2 (en) | Electrophoretic display controller providing PIP and cursor support | |
| US10043459B1 (en) | Display timing controller with single-frame buffer memory | |
| CN112967666B (en) | LED display screen control device and control method capable of realizing random pixel arrangement | |
| US5838291A (en) | Display control method and apparatus | |
| US4201983A (en) | Addressing circuitry for a vertical scan dot matrix display apparatus | |
| US11756512B2 (en) | Systems and methods for updating an image displayed on a display device | |
| US6281876B1 (en) | Method and apparatus for text image stretching | |
| JP2005140959A (en) | Display device and portable equipment using the same | |
| CN113539193B (en) | Liquid crystal display control method and device and computer readable storage medium | |
| CN109637438B (en) | Display control parameter updating method and driving chip | |
| JP4599049B2 (en) | Display device and portable device using the same | |
| TWI471836B (en) | Display device using movement of particles | |
| JP4570025B2 (en) | Controller driver and display panel driving method | |
| US10923011B2 (en) | Bistable display device and driving circuit | |
| TW200525267A (en) | Pixel transition and temperature coded waveforms | |
| US6943801B2 (en) | System and method for refreshing imaging devices or displays on a page-level basis | |
| US20230306930A1 (en) | Updating an image displayed on a display device | |
| CN113281983B (en) | Control method and system for picture display of smart watch, smart watch and medium | |
| CN114495792B (en) | Display driving circuit and display driving method | |
| KR100275706B1 (en) | A circuit of automatically refreshing display of a lcd |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Applicant after: Dafu Technology (Anhui) Co.,Ltd. Address before: 518104 First, Second and Third Floors of A1, A2, A3 101, A4 of Shajing Street, Shajing Street, Baoan District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN TATFOOK TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |