CN115565498B - Driving method, driving device, display panel and storage medium - Google Patents
Driving method, driving device, display panel and storage medium Download PDFInfo
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- 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
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Abstract
The invention discloses a driving method, a driving device, a display panel and a storage medium, wherein the method comprises the following steps: acquiring N data frames corresponding to the partitioned backlight data and gray scales corresponding to each data frame in the N data frames; acquiring a driving signal according to the gray scale corresponding to each of the N data frames and a loaded preset time lookup table; and performing drive control on the switching time of the backlight picture based on the drive signal. The picture switching time of the Mini LED backlight module driven and controlled by the LED driving chip is controlled by obtaining the driving signal consistent with the liquid crystal rotation speed of the liquid crystal panel, so that the picture switching time of the Mini LED backlight module can be consistent with the liquid crystal rotation speed, namely the time required by the picture switching of the liquid crystal panel, and the condition of poor display effect caused by asynchronous time is avoided.
Description
Technical Field
The present invention relates to the field of liquid crystal display, and in particular, to a driving method, a driving apparatus, a display panel, and a computer-readable storage medium.
Background
The liquid crystal panel is composed of a certain number of color or black and white pixels, and is placed in front of the light source or the reflection surface, but because the liquid crystal panel itself does not emit light, it is necessary to install a light emitting device behind the liquid crystal panel, and the light emitting device disposed behind the liquid crystal panel in the market is generally a Mini LED (sub-millimeter light emitting diode) backlight module.
However, in practical applications, due to the liquid crystal rotation characteristic of the liquid crystal panel, the time required by the liquid crystal panel to switch a frame of picture is longer, but due to the LED characteristic of the Mini LED backlight module, the time required by the Mini LED backlight module to switch a frame of picture is shorter than the time required by the liquid crystal panel to switch a frame of picture, and there is a case that the picture switching time of the liquid crystal panel and the picture switching time of the Mini LED backlight module are not synchronous, which may cause a phenomenon that the display effect of the displayed picture is poor.
Disclosure of Invention
The invention mainly aims to provide a driving method, a driving device, a display panel and a computer readable storage medium, aiming at solving the technical problem of poor display effect when the liquid crystal rotation characteristic of a liquid crystal panel and the LED characteristic of a Mini LED backlight module are combined to display a display picture.
In order to achieve the above object, the present invention provides a driving method, which is applied to a micro control chip, and includes the following steps:
acquiring N data frames corresponding to partitioned backlight data and gray scales corresponding to each data frame in the N data frames;
acquiring a driving signal according to the N data frames, the gray scales corresponding to each data frame in the N data frames and a loaded preset time lookup table;
and performing drive control on the switching time of the backlight picture based on the drive signal.
Optionally, before the step of obtaining N data frames corresponding to the partitioned backlight data and the gray scale corresponding to each data frame in the N data frames, the method further includes:
and receiving the subarea backlight data, and performing data verification and data rearrangement on the subarea backlight data to obtain driving data.
Optionally, the step of obtaining the driving signal according to the N data frames, the gray scales corresponding to each data frame in the N data frames, and the loaded preset time lookup table includes:
extracting corresponding preset time values from the preset time lookup table according to each data frame in the N data frames and the gray scale corresponding to each data frame, wherein the sum of the preset time values is 1;
and acquiring the driving signal according to the preset time value and the gray scale.
Optionally, before the step of extracting, according to each data frame in the N data frames and the gray scale corresponding to each data frame, a corresponding preset time value from the preset time lookup table, the method further includes:
and acquiring the preset time lookup table set according to the liquid crystal rotation speed.
Optionally, the step of obtaining the driving signal according to the preset time value and the gray scale includes:
acquiring a driving formula consisting of each gray scale and the preset time value corresponding to each gray scale;
and outputting the driving equation as the driving signal.
Optionally, the step of performing driving control on the switching time of the backlight picture based on the driving signal includes:
and driving the switching time of the light emitting diodes in the backlight module based on the driving signal so as to drive and control the switching time of the backlight picture displayed by the backlight module.
Optionally, before the step of receiving the partitioned backlight data, the method further includes:
when display data are received on the basis of a display processing chip, the display data are processed through the display processing chip to obtain the partitioned backlight data;
and outputting the subarea backlight data through the display processing chip so as to receive the output subarea backlight data.
The present invention also provides a driving apparatus, which is applied to a micro control chip, the driving apparatus comprising:
the acquisition module is used for acquiring N data frames corresponding to the partitioned backlight data and N gray scales corresponding to each data frame in the N data frames;
the obtaining module is further configured to obtain a driving signal according to the N data frames, the gray scales corresponding to each of the N data frames, and a loaded preset time lookup table, where the preset time lookup table is set according to a liquid crystal rotation speed;
and the output module is used for carrying out drive control on the switching time of the backlight picture based on the drive signal.
In addition, to achieve the above object, the present invention further provides a display panel, which includes a memory, a processor and a computer processing program stored in the memory and running on the processor, wherein the processor implements the steps of the driving method when executing the computer processing program.
In addition, to achieve the above object, the present invention further provides a computer-readable storage medium, on which a computer program is stored, and the computer program realizes the steps of the driving method when executed by a processor.
The invention obtains N data frames corresponding to subarea backlight data and the gray scale degree corresponding to each data frame in the N data frames through a micro control chip; acquiring a driving signal according to the gray scale corresponding to each of the N data frames and the loaded preset time lookup table; the invention controls the picture switching time of the Mini LED backlight module driven and controlled by the LED driving chip by acquiring the driving signal consistent with the liquid crystal rotation speed of the liquid crystal panel, so that the picture switching time of the Mini LED backlight module can be consistent with the liquid crystal rotation speed, namely the time required by the picture switching of the liquid crystal panel, thereby synchronizing the picture switching time of the liquid crystal panel and the picture switching time of the Mini LED backlight module, and avoiding the condition of poor display effect of the displayed picture due to asynchronous time.
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Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a driving method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram showing the time comparison between the frame switching speed of the liquid crystal panel and the frame switching speed of the Mini LED backlight module in the prior art;
FIG. 4 is a schematic diagram showing the time comparison between the frame switching speed of the liquid crystal panel and the frame switching speed of the Mini LED backlight module in the present invention;
FIG. 5 is a diagram of a predetermined time look-up table according to the present invention;
FIG. 6 is a schematic diagram of a data flow among a display processing chip, a micro control chip and a light emitting diode driving chip in a display panel;
fig. 7 is a block diagram of the driving device of the present invention.
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
In the driving method of the embodiment of the present invention, the carrier is a display panel, and as shown in fig. 1, the display panel may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display area (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
The display panel may optionally further include a camera, RF (Radio Frequency) circuitry, sensors, audio circuitry, wiFi modules, and the like. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display according to the brightness of ambient light, and a proximity sensor that turns off the display and/or the backlight when the mobile terminal moves to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when the mobile terminal is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping) and the like for recognizing the attitude of the mobile terminal; of course, the mobile terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
It will be understood by those skilled in the art that the display panel structure shown in fig. 1 is not intended to be limiting of the display panel and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a computer processing program.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to invoke the computer processing program stored in the memory 1005 and perform the following operations:
acquiring N data frames corresponding to partitioned backlight data and gray scales corresponding to each data frame in the N data frames;
acquiring a driving signal according to the N data frames, the gray scales corresponding to each data frame in the N data frames and a loaded preset time lookup table;
and performing driving control on the switching time of the backlight picture based on the driving signal.
Further, the processor 1001 may call the computer program stored in the memory 1005, and also perform the following operations:
before the step of obtaining N data frames corresponding to the partitioned backlight data and the gray scale corresponding to each data frame in the N data frames, receiving the partitioned backlight data, and performing data check and data rearrangement on the partitioned backlight data to obtain driving data.
Further, the processor 1001 may call the computer program stored in the memory 1005, and also perform the following operations:
the step of obtaining the driving signal according to the N data frames, the gray scale corresponding to each data frame in the N data frames, and the loaded preset time lookup table includes: extracting corresponding preset time values from the preset time lookup table according to each data frame in the N data frames and the gray scale corresponding to each data frame, wherein the sum of the preset time values is 1;
and acquiring the driving signal according to the preset time value and the gray scale.
Further, the processor 1001 may call the computer program stored in the memory 1005, and also perform the following operations:
and acquiring the preset time lookup table set according to the liquid crystal rotation speed before the step of extracting the corresponding preset time value from the preset time lookup table according to each data frame in the N data frames and the gray scale corresponding to each data frame.
Further, the processor 1001 may call the computer program stored in the memory 1005, and also perform the following operations:
the step of obtaining the driving signal according to the preset time value and the gray scale comprises the following steps: acquiring a driving formula consisting of each gray scale and the preset time value corresponding to each gray scale;
and outputting the driving equation as the driving signal.
Further, the processor 1001 may call the computer program stored in the memory 1005, and also perform the following operations:
the step of performing drive control of the switching time of the backlight picture based on the drive signal includes: and driving the switching time of the light emitting diodes in the backlight module based on the driving signal so as to drive and control the switching time of the backlight picture displayed by the backlight module.
Further, the processor 1001 may call the computer program stored in the memory 1005, and also perform the following operations:
before the step of receiving the subarea backlight data, when a display processing chip receives display data, the display processing chip processes the display data to obtain the subarea backlight data;
and outputting the subarea backlight data through the display processing chip so as to receive the output subarea backlight data.
Referring to fig. 2, an embodiment of the present invention provides a driving method, including:
step S10, referring to fig. 3 and 4, acquiring N data frames corresponding to the partitioned backlight data and gray scales corresponding to each of the N data frames;
it should be noted in advance that, in this embodiment, the N data frames corresponding to the N data frames and the N gray scales corresponding to the N data frames are obtained according to the partitioned backlight data, because in the conventional technology, the liquid crystal in the liquid crystal panel performs the liquid crystal frame switching according to the gray scale response time corresponding to both the data frames and the gray scales, so as to synchronize the frame switching time of the liquid crystal panel and the frame switching time of the Mini LED backlight module, so as to achieve the effect of synchronizing the frame switching of the liquid crystal panel and the frame switching of the Mini LED backlight module.
The light emitting diode driving chip drives and controls the brightness of the light emitting diode according to the driving data and drives and controls the light emitting diode according to the driving signal when the brightness of the light emitting diode is controlled, so that the phenomenon of poor display effect of a display picture caused by inconsistent picture switching of the liquid crystal panel and the picture switching of the Mini LED backlight module due to the fact that no switching time matched with the picture switching of the liquid crystal panel exists is avoided, namely, taking fig. 3 as an example, fig. 3 is a comparison graph of the picture switching speed of the liquid crystal panel and the picture switching speed of the Mini LED backlight module under the conventional technology, and as can be known from fig. 3, under the condition that the picture switching speed of the Mini LED backlight module is not limited, the picture switching speed of the Mini LED backlight module is obviously higher than the picture switching speed of the liquid crystal panel, a difference (t 1+ t 2) is caused by the situation that the Mini LED backlight module has been switched to the brightness and a light source corresponding to a next picture, but the liquid crystal panel is still in the pixel switching process of the current picture and the next picture, liquid crystal molecules in the liquid crystal panel do not respond, even though the situation is not completely changed, the double image of the liquid crystal panel, the liquid crystal panel is still caused, and the problem that the double image display effect of the liquid crystal panel is still caused, and the target person still exists.
As shown in fig. 4, it can be known from fig. 4 that the image switching speed of the Mini LED backlight module is delayed in the embodiment, so that the image switching speed of the Mini LED backlight module is the same as the image switching speed of the liquid crystal panel, thereby achieving the effect of synchronizing the image switching of the liquid crystal panel and the image switching of the Mini LED backlight module, and eliminating the "ghost image" caused by asynchronous switching.
Step S20, referring to fig. 5, obtaining a driving signal according to the N data frames, the gray scales corresponding to each data frame in the N data frames, and the loaded preset time lookup table;
in the development process, the inventor finds that when the liquid crystal changes at different gray scales and data frames, the corresponding switching time of the liquid crystal is different. Therefore, the same delay switching time is used in each data frame, and the problems of insufficient flexibility and poor display effect still exist.
In view of this, the embodiment of the present application provides a driving method, which can determine, according to all data frames (hereinafter, referred to as N data frames for indicating distinction) included in a partitioned backlight data signal currently received by a micro control chip and a gray scale corresponding to each of the data frames in all data frames, a picture switching time of a liquid crystal panel corresponding to each data frame and the gray scale corresponding to each data frame through a preset time lookup table, and control a luminance switching time of a light emitting diode by using the picture switching time of the liquid crystal panel as a picture switching time of a Mini LED, so that the picture switching time of the liquid crystal panel = a driving signal.
Fig. 5 is a schematic diagram of a preset time lookup table according to an embodiment of the present application. Wherein the display look-up table may contain various Gray levels Gray (i.e., 0, 31, 63, 95, 127, 160, 192, 223, 225 in fig. 5) and various data frames (i.e., frameN- (N-1), (9.)..,. FrameN-2, frameN-1, and FrameN in fig. 5), the corresponding frame switching time of the lcd panel is a preset time value (i.e., X1,... Times, X2, X3, X4, Y1,... Times, Y2, Y3, Y4,... Times, Z1,. Times, Z2, Z3, and Z4 in fig. 5), where X1,. Times, X2, X3, X4, Y1,. Times, Y2, Y3, Y4,. Times, Z1,. Times, Z2, Z3, and Z4 do not represent any specific or particular numerical value). As shown in fig. 5, different gray scales and different data frames correspond to different frame switching times, dynamic query of the frame switching time of the liquid crystal panel can be realized through the preset time lookup table, and the frame switching time indicated by the gray scale corresponding to each data frame and each data frame on the preset time lookup table controls the brightness adjustment time of the light emitting diode, so that the backlight module can provide a backlight function for the liquid crystal panel more accurately, accuracy of backlight control is improved, dynamic display requirements of a display frame are met, backlight control with adaptive refresh delay is realized, and display effect is effectively improved.
Optionally, the step S20 of obtaining the driving signal according to the N data frames, the gray scale corresponding to each data frame in the N data frames, and the loaded preset time lookup table includes:
step S201, extracting corresponding preset time values from the preset time lookup table according to each data frame of the N data frames and the gray scale corresponding to each data frame, wherein the sum of the preset time values is 1;
and step S202, acquiring the driving signal according to the preset time value and the gray scale.
Specifically, the specific examples shown in table 1 are taken as examples.
TABLE 1
| Gray | Frame1 | Frame2 | | Frame4 | Frame5 | |
| 0 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
| 31 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
| 63 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
| 95 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
| 127 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
| 160 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
In this example, N =5, that is, 5 data frames are taken as an example, because the partition backlight data is processed by the display data, the micro-controller chip may obtain the data Frame of the to-be-displayed Frame and the Gray scale corresponding to each data Frame of the to-be-displayed Frame according to the received partition backlight data, assuming that the Gray scale Gray corresponding to the 1 st data Frame1 obtained by the micro-controller chip according to the partition backlight data is 31, the Gray scale Gray corresponding to the 2 nd data Frame2 is 63, the Gray scale Gray corresponding to the 3 rd data Frame3 is 0, and the Gray scale Gray corresponding to the 4 th data Frame4 is 127, if the Gray level Gray corresponding to the 5 th Frame5 is 160, the Frame switching times corresponding to different Gray levels corresponding to different data frames and data frames can be dynamically searched and extracted based on table 1, i.e. the preset time values are respectively [0.2,0.2 ] and then, in order to ensure that the led driving chip can perform driving control on the luminance time of the led at the corresponding Gray scale, the driving signal output from the micro control chip to the led driving chip is composed of the preset time value and the Gray scale, so the driving signal output to the led driving chip in this example is [0.2 × 31+0.2 × 63+0.2 × 127+0.2 × 160].
It should be noted that the preset time value is not limited to the time values shown in table 1, and in the actual application process, the preset time value is set according to the actual demand of the product, and the sum of the preset time values is 1.
Optionally, in step S201, before the step of extracting a corresponding preset time value from the preset time lookup table according to each data frame of the N data frames and the gray scale corresponding to each data frame, the method further includes:
and step A, acquiring the preset time lookup table set according to the liquid crystal rotation speed.
The liquid crystal rotation speed is the picture switching time of the liquid crystal panel, and the preset time lookup table set according to the liquid crystal rotation speed can ensure the time consistency of the picture switching of the liquid crystal panel and the picture switching of the Mini LED backlight module to the maximum extent, so that the phenomenon of 'ghost image' is avoided, and the quality of the display effect of the display picture is improved.
Optionally, the step of obtaining the driving signal according to the preset time value and the gray scale in step S202 includes:
step B1, obtaining a driving formula formed by each gray scale and the preset time value corresponding to each gray scale;
and B2, outputting the driving formula as the driving signal.
To complete this example, the specific steps are illustrated in another example, table 2.
TABLE 2
| Gray | Frame1 | Frame2 | | Frame4 | Frame5 | |
| 0 | 0.1 | ... | 0.2 | ... | ... | |
| 31 | ... | ... | ... | ... | ... | |
| 63 | ... | 0.3 | ... | ... | ... | |
| 95 | ... | ... | ... | ... | 0.3 | |
| 127 | ... | ... | ... | 0.1 | ... |
For the convenience of viewing, the preset time values in table 1 are the same, but in practical applications, for the purpose of making the display more flexible, the preset time values are actually different.
That is, taking table 2 as an example, assuming that the grayscale Gray level Gray corresponding to the 1 st data Frame1 is 0, the grayscale Gray corresponding to the 2 nd data Frame2 is 63, the grayscale Gray corresponding to the 3 rd data Frame3 is 0, the grayscale Gray corresponding to the 4 th data Frame4 is 127, the grayscale Gray corresponding to the 5 th data Frame5 is 95, the preset time values corresponding to the different grayscales corresponding to the different data frames and the data frames are dynamically extracted according to table 2 as [0.1,0.3,0.2,0.1,0.3], so the driving formula composed of the different grayscales and the preset time values is: [0.1 +0.3 +0.1 + 127+0.3 + 95], and after a driving formula [0.1 +0.3 + 63+0.2 + 0+0.1 + 127+0.3 + 95] is obtained, the driving formula is output to a light emitting diode driving chip as a driving signal.
And step S30, performing drive control on the switching time of the backlight picture based on the drive signal.
Optionally, the step of performing driving control on the switching time of the backlight picture based on the driving signal in step S30 includes:
step S301, driving the switching time of the light emitting diodes in the backlight module based on the driving signal, so as to drive and control the switching time of the backlight picture displayed by the backlight module.
The micro control chip obtains the driving signal and then outputs the driving signal to the light emitting diode driving chip, because the internal logic of the modified micro control chip is that the micro control chip obtains the driving data according to the subarea backlight data processing and outputs the driving data to the light emitting diode driving chip, the driving data is only the information of the brightness size and does not contain the driving signal, namely, the brightness size of the light emitting diode cannot be adjusted by the light emitting diode driving chip based on the received driving data, and only after the driving signal sent by the micro control chip is received, the brightness of the light emitting diode can be driven and controlled according to the driving signal and the driving data.
Because the driving signal contains a preset time value, the preset time value is set according to the picture switching time (namely the switching time of the pixels) of the liquid crystal panel, and the light-emitting time of the light-emitting diodes in the backlight module between different data frames is driven and controlled through the preset time value in the driving signal, so that the light-emitting time of the light-emitting diodes can be synchronous with the switching time of the pixels in the liquid crystal panel, and the picture switching time of the liquid crystal panel and the picture switching time of the Mini LED backlight module are synchronous.
Optionally, before the step of obtaining the N data frames corresponding to the partitioned backlight data and the gray scale corresponding to each data frame in the N data frames in step S10, the method further includes:
and step S101, receiving the subarea backlight data, and performing data check and data rearrangement on the subarea backlight data to obtain driving data.
And the micro control chip performs data verification and data rearrangement on the received subarea backlight data in the process of receiving the subarea backlight data, processing the subarea backlight data and outputting the processed subarea backlight data to the light-emitting diode driving chip.
The data verification is a verification operation performed to ensure the integrity of the partitioned backlight data. Usually, a designated algorithm is used to calculate a check value for the partitioned backlight data, and the receiver calculates a check value for the partitioned backlight data by the same algorithm, and if the check values obtained by the two calculations are the same, the data is complete. The data rearrangement is the rearrangement which is carried out after partial or all data of the subarea backlight data are extracted according to a certain corresponding relation, and the driving data is formed after the arrangement is finished.
Optionally, before the step of receiving the partitioned backlight data in step S101, the method further includes:
step C1, when display data are received based on a display processing chip, the display data are processed through the display processing chip to obtain the subarea backlight data;
and step C2, outputting the subarea backlight data through the display processing chip so as to receive the output subarea backlight data.
As shown in fig. 6, a display processing Chip in the display panel receives and processes display data, processes the display data into partitioned backlight data, and then sends the partitioned backlight data obtained by the processing to a micro control Chip, and processes the partitioned backlight data by the micro control Chip to obtain driving data output to a light emitting diode driving Chip, where the display processing Chip may be a System on Chip (SoC) Chip or a Timing Controller (TCON) Chip, and the micro control Chip may be another dedicated Chip, such as an Application Specific Integrated Circuit (ASIC).
In this embodiment, a grayscale level corresponding to each of N data frames and each of N data frames corresponding to partitioned backlight data is obtained by a micro control chip; acquiring a driving signal according to the gray scale corresponding to each of the N data frames and the loaded preset time lookup table; the switching time of the backlight picture is driven and controlled based on the driving signal, the switching time of the Mini LED backlight module driven and controlled by the LED driving chip is controlled by obtaining the driving signal consistent with the liquid crystal rotation speed of the liquid crystal panel, so that the picture switching time of the Mini LED backlight module can be consistent with the liquid crystal rotation speed, namely the time required by the picture switching of the liquid crystal panel, the picture switching time of the liquid crystal panel and the picture switching time of the Mini LED backlight module are synchronized, and the condition that the display effect of the display picture is poor due to the asynchronous time is avoided.
Referring to fig. 7, the present invention also provides a driving apparatus, including:
an obtaining module 10, configured to obtain N data frames corresponding to partitioned backlight data and a gray scale corresponding to each data frame in the N data frames;
the obtaining module 10 is further configured to obtain a driving signal according to the N data frames, the gray scales corresponding to each data frame in the N data frames, and the loaded preset time lookup table;
and an output module 20, configured to perform driving control on the switching time of the backlight picture based on the driving signal.
Further, the obtaining module 10 is further configured to:
and receiving the subarea backlight data, and performing data verification and data rearrangement on the subarea backlight data to obtain driving data.
Further, the obtaining module 10 is further configured to:
extracting corresponding preset time values from the preset time lookup table according to each data frame in the N data frames and the gray scale corresponding to each data frame, wherein the sum of the preset time values is 1;
and acquiring the driving signal according to the preset time value and the gray scale.
Further, the obtaining module 10 is further configured to:
and acquiring the preset time lookup table set according to the liquid crystal rotation speed.
Further, the obtaining module 10 is further configured to:
acquiring a driving formula consisting of each gray scale and the preset time value corresponding to each gray scale;
and outputting the driving equation as the driving signal.
Further, the output module 20 is further configured to:
and driving the switching time of the light emitting diodes in the backlight module based on the driving signal so as to drive and control the switching time of the backlight picture displayed by the backlight module.
Further, the obtaining module 10 is further configured to:
when display data are received based on a display processing chip, the display data are processed through the display processing chip to obtain the partitioned backlight data;
and outputting the subarea backlight data through the display processing chip so as to receive the output subarea backlight data.
In addition, an embodiment of the present invention further provides a display panel, where the display panel includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the driving method when executing the computer program.
Furthermore, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the above-described driving method.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A driving method is applied to a micro control chip and comprises the following steps:
acquiring N data frames corresponding to the partitioned backlight data and gray scales corresponding to each data frame in the N data frames, and acquiring a preset time lookup table set according to the liquid crystal rotation speed;
extracting corresponding preset time values from the preset time lookup table according to each data frame in the N data frames and the gray scale corresponding to each data frame, wherein the sum of the preset time values is 1;
acquiring a driving formula consisting of each gray scale and the preset time value corresponding to each gray scale;
outputting the driving pattern as a driving signal;
and performing driving control on the switching time of the backlight picture based on the driving signal.
2. The driving method according to claim 1, wherein before the step of obtaining the N data frames corresponding to the partitioned backlight data and the gray scale corresponding to each of the N data frames, the method further comprises:
and receiving the subarea backlight data, and performing data verification and data rearrangement on the subarea backlight data to obtain driving data.
3. The driving method according to claim 1, wherein the step of drive-controlling the switching time of the backlight picture based on the driving signal comprises:
and driving the switching time of the light emitting diodes in the backlight module based on the driving signal so as to drive and control the switching time of the backlight picture displayed by the backlight module.
4. The driving method of claim 2, wherein the step of receiving the partitioned backlight data is preceded by the method further comprising:
when display data are received on the basis of a display processing chip, the display data are processed through the display processing chip to obtain the partitioned backlight data;
and outputting the subarea backlight data through the display processing chip so as to receive the output subarea backlight data.
5. A driving device, wherein the driving device is applied to a micro control chip, and the driving device comprises:
the acquisition module is used for acquiring N data frames corresponding to the partitioned backlight data and N gray-scale degrees corresponding to each data frame in the N data frames, and acquiring a preset time lookup table set according to the liquid crystal rotation speed;
the obtaining module is further configured to extract a corresponding preset time value from the preset time lookup table according to each data frame of the N data frames and the gray scale corresponding to each data frame, where the total sum of the preset time values is 1;
the acquisition module is further configured to acquire a driving pattern composed of each gray scale and the preset time value corresponding to each gray scale, and then output the driving pattern as a driving signal;
and the output module is used for carrying out drive control on the switching time of the backlight picture based on the drive signal.
6. A display panel, comprising: a memory, a processor and a computer processing program stored on the memory and executable on the processor, the processor implementing the driving method of any one of claims 1 to 4 when executing the computer processing program.
7. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, realizes the steps of the driving method of any one of claims 1 to 4.
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| EP1650736A1 (en) * | 2004-10-25 | 2006-04-26 | Barco NV | Backlight modulation for display |
| KR100791841B1 (en) * | 2006-03-10 | 2008-01-07 | 삼성전자주식회사 | Apparatus and method for generating back light signal synchronized with frame signal |
| CN109712586A (en) * | 2019-02-15 | 2019-05-03 | 京东方科技集团股份有限公司 | A kind of display methods, device and computer readable storage medium |
| US20220122553A1 (en) * | 2021-12-24 | 2022-04-21 | Intel Corporation | Asynchronous control of a backlight for a liquid crystal display |
| CN114627826A (en) * | 2022-03-15 | 2022-06-14 | 北京显芯科技有限公司 | Backlight control method, apparatus, device, storage medium and program product |
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