[go: up one dir, main page]

CN116229877A - Refresh rate adaptive adjustment method, device and LED display device - Google Patents

Refresh rate adaptive adjustment method, device and LED display device Download PDF

Info

Publication number
CN116229877A
CN116229877A CN202111475219.3A CN202111475219A CN116229877A CN 116229877 A CN116229877 A CN 116229877A CN 202111475219 A CN202111475219 A CN 202111475219A CN 116229877 A CN116229877 A CN 116229877A
Authority
CN
China
Prior art keywords
time interval
vertical synchronization
signal
synchronization signal
subframe
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.)
Pending
Application number
CN202111475219.3A
Other languages
Chinese (zh)
Inventor
林俊杰
赵丽红
严振航
吴振志
吴涵渠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Aoto Electronics Co Ltd
Original Assignee
Shenzhen Aoto Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Aoto Electronics Co Ltd filed Critical Shenzhen Aoto Electronics Co Ltd
Priority to CN202111475219.3A priority Critical patent/CN116229877A/en
Priority to PCT/CN2022/073012 priority patent/WO2023097879A1/en
Publication of CN116229877A publication Critical patent/CN116229877A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

The application relates to the field of LED display equipment, and discloses a self-adaptive adjustment method and device for refresh rate and LED display equipment. The method comprises the following steps: acquiring at least one vertical synchronization signal and at least one sub-frame signal; respectively calculating the time intervals of the sub-frame exchange signal and the vertical synchronization signal; determining a refresh packet number based on the time interval of the vertical synchronization signal and the time interval of the sub-frame signal; and refreshing the display image according to the refreshing grouping number, and carrying out self-adaptive adjustment on the refreshing rate of the display device by the mode, so that the refreshing grouping number can be automatically adjusted according to the frame frequency of the video source, and the problems of flickering and bright lines of the LED screen can be eliminated.

Description

Self-adaptive refresh rate adjusting method and device and LED display device
Technical Field
The application relates to the field of LED display equipment, in particular to a self-adaptive refresh rate adjusting method and device and an LED display equipment.
Background
With the continuous development of technology, the application of the LED display screen is more and more widespread. When the LED display screen displays a frame of graphics, N groups of subframes are typically sent, and each group of subframes includes M scan numbers. When the LED display screen completes M scan numbers, it means that all rows of the LED display screen are lighted, thereby forming a pattern.
In the conventional technology, each group of subframes controls the LED display to be completely lighted once. The refresh rate of the LED display screen is related to the frame rate of the video source and the number of refresh packets. However, in the conventional technology, the number of refresh packets does not change along with the frame frequency change of the video source, so that the number of refresh packets of the LED display screen is not matched with the frame frequency of the video source, and the LED screen has a flickering or bright line problem.
Disclosure of Invention
Based on the foregoing, it is necessary to provide a method and a device for adjusting the refresh rate in a self-adaptive manner, and an LED display device, so as to solve the problem that the LED screen flashes and is bright.
In a first aspect, embodiments of the present application provide a method for adaptively adjusting a refresh rate, for an LED display device, the method including:
acquiring at least one vertical synchronization signal and at least one sub-frame signal;
respectively calculating the time intervals of the sub-frame exchange signal and the vertical synchronization signal;
determining a refresh packet number based on the time interval of the vertical synchronization signal and the time interval of the sub-frame signal;
and refreshing the display image according to the refreshing grouping number.
In some embodiments, the calculating the time interval of the vertical synchronization signal includes:
counting two continuous frames of vertical synchronous signals according to a first preset frequency to obtain a first count value;
and determining the time interval of the vertical synchronization signal according to the first count value and the first preset frequency.
In some embodiments, the calculating the time interval of the sub-frame signal comprises:
counting two continuous frame-change subframe signals according to a second preset frequency to obtain a second count value;
and determining the time interval of the subframe changing signal according to the second count value and the second preset frequency.
In some embodiments, the calculation formula for determining the time interval of the vertical synchronization signal according to the first count value and the first preset frequency is:
time interval of vertical synchronization signal = first preset frequency/first count value.
In some embodiments, the calculation formula for determining the time interval of the subframe signal according to the second count value and the second preset frequency is:
time interval of the sub-frame signal = second preset frequency/second count value.
In some embodiments, the calculation formula for determining the refresh packet number based on the time interval of the vertical synchronization signal and the time interval of the sub-frame signal is:
refresh packet number = [ time interval of subframe signal/time interval of vertical synchronization signal ]
Wherein [ is ] represents rounding.
In a second aspect, embodiments of the present application further provide a refresh rate adaptive adjustment device, for an LED display device, including:
an acquisition module for acquiring at least one vertical synchronization signal and at least one sub-frame signal;
a first calculation module, configured to calculate time intervals of the sub-frame signal and the vertical synchronization signal respectively;
a second calculation module for determining a refresh packet number based on the time interval of the vertical synchronization signal and the time interval of the sub-frame signal;
and the refreshing module is used for refreshing the display image according to the refreshing grouping number.
In some embodiments, the first computing module is specifically configured to:
counting two continuous frames of vertical synchronous signals according to a first preset frequency to obtain a first count value;
determining a time interval of a vertical synchronization signal according to the first count value and the first preset frequency;
counting two continuous frame-change subframe signals according to a second preset frequency to obtain a second count value;
and determining the time interval of the subframe changing signal according to the second count value and the second preset frequency.
In a third aspect, embodiments of the present application further provide an LED display device, including:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein,,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method described above.
In a fourth aspect, embodiments of the present application also provide a non-transitory computer-readable storage medium storing computer-executable instructions that, when executed by a processor, cause the processor to perform the above-described method.
Compared with the prior art, the beneficial effects of this application are: different from the situation of the prior art, in the self-adaptive refresh rate adjusting method, device and LED display device of the embodiments of the present application, at least one vertical synchronization signal and at least one sub-frame signal are obtained, then the time interval of the sub-frame signal and the time interval of the vertical synchronization signal are calculated respectively, then the refresh packet number is determined based on the time interval of the vertical synchronization signal and the time interval of the sub-frame signal, and finally the display image is refreshed based on the refresh packet number, so that the refresh packet number obtained by the above manner can be changed along with the change of the frame frequency of the video source, thereby enabling the refresh packet number to be automatically adjusted according to the frame frequency of the video source, and eliminating the problem of flickering and bright lines of the LED screen.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
FIG. 1 is a flow chart of a method of refresh rate adaptive adjustment in one embodiment of the present application;
FIG. 2 is a flow diagram of refresh rate adaptation in one embodiment of the present application;
FIG. 3 is a schematic diagram of a black screen time being greater than a set of sub-frame times in one embodiment of the present application;
FIG. 4 is a schematic diagram of a black screen time of one embodiment of the present application being less than or equal to a set of sub-frame times;
FIG. 5 is a schematic diagram of a refresh rate adaptive adjustment device in accordance with one embodiment of the present application;
fig. 6 is a schematic diagram of a hardware structure of an LED display device according to an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that, if not conflicting, the various features in the embodiments of the present application may be combined with each other, which is within the protection scope of the present application. In addition, while functional block division is performed in a device diagram and logical order is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the block division in the device, or in the flowchart. Moreover, the words "first," "second," "third," and the like as used herein do not limit the data and order of execution, but merely distinguish between identical or similar items that have substantially the same function and effect.
As shown in fig. 1, an embodiment of the present application provides a method for adaptively adjusting a refresh rate, where the method is performed by an LED display device, and the method includes:
step 101, at least one vertical synchronization signal and at least one sub-frame signal are acquired.
In the embodiment of the application, the vertical synchronization signal is used to indicate the driving waveform required for converting video data into the LED driving chip. Specifically, after the externally input vertical synchronization signal is acquired, the video data is converted into a driving waveform required for the LED driving chip. The sub-frame signal is a signal for switching one sub-frame to the next sub-frame, i.e., a first sub-frame signal of a second frame is switched to a second sub-frame signal of the second frame. It should be noted that, the first subframe signal and the second subframe signal in the embodiments of the present application are defined for convenience of description of the present application, and are relative concepts.
Step 102, calculating time intervals of the sub-frame signal and the vertical synchronization signal respectively.
Step 103, determining the refresh packet number based on the time interval of the vertical synchronization signal and the time interval of the sub-frame signal.
In the conventional technology, since the refresh packet number of the LED display screen is fixed, the refresh packet number does not change with the change of the video source frame rate, so that the problems of flickering and bright lines occur. Therefore, in the embodiment of the application, the refresh packet number is calculated by changing the time interval of the subframe signal and the time interval of the vertical synchronization signal, so that the refresh packet number is automatically adjusted along with the frame frequency of the video source, the subframe time is filled with the time of the LED display screen for displaying one frame, the flicker sense of the screen is eliminated, and meanwhile, each subframe is complete, so that the screen cannot generate the problem of bright lines.
As an implementation manner of step 102, the calculating the time interval of the vertical synchronization signal includes: counting two continuous frames of vertical synchronous signals according to a first preset frequency to obtain a first count value; and determining the time interval of the vertical synchronization signal according to the first count value and the first preset frequency.
In this embodiment of the present application, the first preset frequency may be set according to practical situations, for example, the first preset frequency may be 125MHZ. The time interval of the vertical synchronization signal may be a frame frequency. Specifically, when the first frame vertical synchronization signal is received, counting is started at a first preset frequency of 125MHZ, and counting is temporarily stopped until the second frame vertical synchronization signal, thereby obtaining a first count value. And then calculating the time interval of the vertical synchronous signal according to the first count value and the first preset frequency 125MHz, thereby obtaining the frame frequency f. Further, the time interval of the vertical synchronization signal, i.e., the frame frequency f=1/(1/first preset frequency×first count value) =first preset frequency/first count value.
As an implementation manner of step 102, the calculating the time interval of the subframe signal includes: counting two continuous frame-change subframe signals according to a second preset frequency to obtain a second count value; and determining the time interval of the subframe changing signal according to the second count value and the second preset frequency.
In the embodiment of the present application, the second preset frequency may be consistent with the first preset frequency, for example, the second preset frequency may be 125MHZ. It should be noted that, counting the consecutive two-frame subframe signals according to the second preset frequency starts from the first subframe signal of the second frame. The time interval of the sub-frame signal may be the sub-frame frequency. Specifically, when the first sub-frame signal of the second frame is acquired, counting is started at a second preset frequency, and when the second sub-frame signal of the second frame is temporarily stopped, the counting is obtained, thereby obtaining a second count value. Then calculates the time interval of the sub-frame signal, i.e. sub-frame frequency f, according to the second count value and the second preset frequency 125MHz Son =1/(1/second preset frequency×second count value) =second preset frequency/second count value.
In some embodiments, as an implementation manner of step 103, the calculation formula for determining the refresh packet number based on the time interval of the vertical synchronization signal and the time interval of the subframe signal is as follows: refresh packet number= [ time interval of subframe signal/time interval of vertical synchronization signal ], [ wherein [ represents rounding ].
In the embodiment of the application, n can be used New type To represent the number of refresh packets. The number of refresh packets is determined by the time interval of the sub-frame signal and the time interval of the vertical synchronization signal, so that the number of refresh packets can be changed following a change in the frame rate of the video source. Specifically, the refresh packet number= = [ time interval of the subframe signal/time interval of the vertical synchronization signal ], [ wherein [ represents rounding ]. In addition, since the time interval of the sub-frame signal is the sub-frame frequency f Son The time interval of the vertical synchronization signal is the frame frequency f, and therefore, the number of refresh packets N New type Can also be expressed as: n is n New type ＝【f Son And f, rounding is represented, and the refresh packet number can be obtained through calculation in the mode.
And 104, refreshing the display image according to the refreshing grouping number.
In the embodiment of the application, after the refresh packet number is calculated based on the time interval of the vertical synchronization signal and the time interval of the sub-frame signal, the display image can be refreshed according to the refresh packet number.
In the embodiment of the application, at least one vertical synchronization signal and at least one sub-frame signal are acquired, then the time interval of the vertical synchronization signal and the time interval of the sub-frame signal are calculated respectively, then the refreshing packet number is determined based on the time interval of the vertical synchronization signal and the time interval of the sub-frame signal, and finally the display image is refreshed according to the refreshing packet number, so that the refreshing packet number can be automatically adjusted according to the frame frequency of the video source, and the flickering and bright line problems of the LED screen can be eliminated.
For ease of understanding the present application, a refresh rate adaptive adjustment method of the present application will be described with reference to fig. 2.
As shown in fig. 2, the first preset frequency and the second preset frequency are both 125MHZ, and the first counter starts counting after receiving the first vertical synchronization signal. When receiving the firstAfter the two synchronization signals, the first counter stops counting, and obtains a first count value vsync_timer from the first counter, and can calculate the frequency of one frame of picture as f=125m/vsync_timer. Further, when the vertical synchronization signal is received, the second counter is cleared and ready for counting. When the first sub-frame signal of the second frame arrives, the counting is started, and when the second sub-frame of the second frame arrives, the counting is stopped, and a second count value frame_timer in the second counter is obtained, and the frequency of one sub-frame can be calculated to be f Son =125M/frame_timer. When f and f are obtained Son Then, according to the refresh packet number, a formula n is calculated New type ＝【f Son And/f, to obtain n New type And changing the refresh packet number n of the next frame to n New type The LED display screen is based on the new refreshing grouping number n New type And refreshing.
In the conventional technology, the number of refresh packets of the LED display screen may not match with the frame rate of the video source: when 1/f is far greater than T n When the frame time of the video source is far longer than the time required by the n groups of refreshing grouping numbers, the LED display screen is not lightened any lamp beads after the n groups of refreshing grouping numbers are sent, and the screen is displayed as a black screen, so that the screen flickering is serious when people watch the LED display screen. When 1/f is slightly smaller than T n At this time, the last group of refresh packets cannot be completely sent out, resulting in a bright line on the screen. Through the refresh rate self-adaptive adjustment method, as shown in fig. 3, when the time T of one frame of the video source is far greater than all the sub-frame time plus the black screen time, that is, when the black screen time 1 is greater than one group of sub-frame time, the black screen time can be shortened, and more groups of sub-frames are supplemented, so that the problem of screen flicker can be solved. In addition, as shown in fig. 4, when the time T of one frame of the video source is less than or equal to the sum of all the sub-frame times, that is, when the black screen time 1 is less than or equal to one group of sub-frame times, according to the above-mentioned refresh rate self-adaptive adjustment method, the last group of refresh packets are not sent any more, so that the problem of bright lines can be effectively solved.
Accordingly, the embodiment of the present application further provides a refresh rate adaptive adjustment device, as shown in fig. 5, an apparatus 500 includes:
an acquisition module 501, configured to acquire at least one vertical synchronization signal and at least one sub-frame signal;
a first calculating module 502, configured to calculate time intervals of the sub-frame signal and the vertical synchronization signal respectively;
a second calculation module 503, configured to determine a refresh packet number based on the time interval of the vertical synchronization signal and the time interval of the sub-frame signal;
and a refreshing module 504, configured to refresh the display image according to the refresh packet number.
According to the self-adaptive refresh rate adjusting device, at least one vertical synchronizing signal and at least one sub-frame exchanging signal are acquired through the acquisition module; then, respectively calculating the time intervals of the sub-frame exchange signal and the vertical synchronous signal through a first calculation module; then determining, by a second calculation module, a refresh packet number based on the time interval of the vertical synchronization signal and the time interval of the sub-frame signal; and finally, refreshing the display image by using a refreshing module according to the refreshing grouping number, so that the refreshing grouping number can be automatically adjusted according to the frame frequency of the video source, and the problems of flickering and bright lines of the LED screen can be eliminated.
Alternatively, in other embodiments of the apparatus, the first computing module 502 specifically uses:
counting two continuous frames of vertical synchronous signals according to a first preset frequency to obtain a first count value;
determining a time interval of a vertical synchronization signal according to the first count value and the first preset frequency;
counting two continuous frame-change subframe signals according to a second preset frequency to obtain a second count value;
and determining the time interval of the subframe changing signal according to the second count value and the second preset frequency.
Optionally, in other embodiments of the apparatus, the calculation formula for determining the time interval of the vertical synchronization signal according to the first count value and the first preset frequency is:
time interval of vertical synchronization signal = first preset frequency/first count value.
Optionally, in other embodiments of the apparatus, the calculation formula for determining the time interval of the subframe signal according to the second count value and the second preset frequency is:
time interval of the sub-frame signal = second preset frequency/second count value.
Optionally, in other embodiments of the apparatus, the calculation formula for determining the number of refresh packets based on the time interval of the vertical synchronization signal and the time interval of the sub-frame signal is:
refresh packet number = [ time interval of subframe signal/time interval of vertical synchronization signal ]
Wherein [ is ] represents rounding.
It should be noted that, the above-mentioned self-adaptive refresh rate adjusting device may execute the functional modules and beneficial effects corresponding to the self-adaptive refresh rate adjusting method provided in the embodiments of the present application. Technical details not described in detail in an embodiment of a refresh rate adaptive adjustment device may be referred to a refresh rate adaptive adjustment method provided in an embodiment of the present application.
Fig. 6 is a schematic hardware structure of an LED display device according to an embodiment of the present application, and as shown in fig. 6, an LED display device 600 includes:
one or more processors 601 and a memory 602, one processor being illustrated in fig. 6.
The processor 601 and the memory 602 may be connected by a bus or otherwise, for example in fig. 6.
The memory 602 is used as a non-volatile computer readable storage medium, and may be used to store non-volatile software programs, non-volatile computer executable programs, and modules, such as program instructions/modules corresponding to the refresh rate adaptive adjustment method in the embodiments of the present application. The processor 601 executes various functional applications and data processing of the LED display device by running nonvolatile software programs, instructions and modules stored in the memory 602, i.e., implements the refresh rate adaptive adjustment method of the above-described method embodiments.
The memory 602 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function; the storage data area may store data created according to the use of the refresh rate adaptive adjustment means, etc. In addition, the memory 602 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 embodiments, memory 602 optionally includes memory remotely located with respect to processor 601, which may be connected to refresh rate adaptive adjustment 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.
Embodiments of the present application also provide a non-transitory computer-readable storage medium storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform the refresh rate adaptive adjustment method in any of the method embodiments described above.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
From the above description of embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus a general purpose hardware platform, or may be implemented by hardware. Those skilled in the art will appreciate that all or part of the processes implementing the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and where the program may include processes implementing the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), or the like.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; the technical features of the above embodiments or in the different embodiments may also be combined under the idea of the present application, the steps may be implemented in any order, and there are many other variations of the different aspects of the present application as described above, which are not provided in details for the sake of brevity; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1.一种刷新率自适应的调节方法，用于LED显示设备，其特征在于，所述方法包括：1. A refresh rate adaptive adjustment method for LED display devices, characterized in that the method comprises: 获取至少一个垂直同步信号和至少一个换子帧信号；Obtain at least one vertical synchronization signal and at least one subframe changing signal; 分别计算所述换子帧信号和所述垂直同步信号的时间间隔；calculating the time intervals of the subframe changing signal and the vertical synchronization signal respectively; 基于所述垂直同步信号的时间间隔和所述换子帧信号的时间间隔确定刷新分组数；determining the number of refresh packets based on the time interval of the vertical synchronization signal and the time interval of the subframe change signal; 根据所述刷新分组数刷新显示图像。The display image is refreshed according to the number of refresh groups. 2.根据权利要求1所述的方法，其特征在于，所述计算所述垂直同步信号的时间间隔，包括：2. The method according to claim 1, wherein said calculating the time interval of said vertical synchronization signal comprises: 按照第一预设频率对连续的两帧垂直同步信号进行计数，获得第一计数值；Counting two consecutive frames of vertical synchronization signals according to a first preset frequency to obtain a first count value; 根据所述第一计数值和所述第一预设频率确定垂直同步信号的时间间隔。A time interval of a vertical synchronization signal is determined according to the first count value and the first preset frequency. 3.根据权利要求2所述的方法，其特征在于，所述计算所述换子帧信号的时间间隔，包括：3. The method according to claim 2, wherein said calculating the time interval of said changing subframe signal comprises: 按照第二预设频率对连续的两帧换子帧信号进行计数，获得第二计数值；Counting the continuous two-frame-for-subframe signal according to the second preset frequency to obtain a second count value; 根据所述第二计数值和所述第二预设频率确定换子帧信号的时间间隔。A time interval for changing subframe signals is determined according to the second count value and the second preset frequency. 4.根据权利要求2所述的方法，其特征在于，所述根据所述第一计数值和所述第一预设频率确定垂直同步信号的时间间隔的计算公式为：4. The method according to claim 2, wherein the calculation formula for determining the time interval of the vertical synchronization signal according to the first count value and the first preset frequency is: 垂直同步信号的时间间隔＝第一预设频率/第一计数值。The time interval of the vertical synchronization signal=the first preset frequency/the first count value. 5.根据权利要求3所述的方法，其特征在于，所述根据所述第二计数值和所述第二预设频率确定换子帧信号的时间间隔的计算公式为：5. The method according to claim 3, wherein the calculation formula for determining the time interval for changing subframe signals according to the second count value and the second preset frequency is: 换子帧信号的时间间隔＝第二预设频率/第二计数值。The time interval for changing the subframe signal=second preset frequency/second count value. 6.根据权利要求1所述的方法，其特征在于，所述基于所述垂直同步信号的时间间隔和所述换子帧信号的时间间隔确定刷新分组数的计算公式为：6. The method according to claim 1, wherein the calculation formula for determining the number of refresh packets based on the time interval of the vertical synchronization signal and the time interval of the subframe signal is: 刷新分组数＝【换子帧信号的时间间隔/垂直同步信号的时间间隔】其中，【】表示取整。Refresh group number = [time interval of changing subframe signal/time interval of vertical synchronization signal] where [] means rounding. 7.一种刷新率自适应的调节装置，用于LED显示设备，其特征在于，包括：7. An adaptive refresh rate adjustment device for LED display equipment, characterized in that it comprises: 获取模块，用于获取至少一个垂直同步信号和至少一个换子帧信号；An acquisition module, configured to acquire at least one vertical synchronization signal and at least one subframe changing signal; 第一计算模块，用于分别计算所述换子帧信号和所述垂直同步信号的时间间隔；A first calculation module, configured to calculate the time intervals of the subframe change signal and the vertical synchronization signal respectively; 第二计算模块，用于基于所述垂直同步信号的时间间隔和所述换子帧信号的时间间隔确定刷新分组数；The second calculation module is used to determine the number of refresh groups based on the time interval of the vertical synchronization signal and the time interval of the subframe change signal; 刷新模块，用于根据所述刷新分组数刷新显示图像。A refresh module, configured to refresh the display image according to the number of refresh groups. 8.根据权利要求7所述的装置，其特征在于，所述第一计算模块具体用于：8. The device according to claim 7, wherein the first calculation module is specifically used for: 按照第一预设频率对连续的两帧垂直同步信号进行计数，获得第一计数值；Counting two consecutive frames of vertical synchronization signals according to a first preset frequency to obtain a first count value; 根据所述第一计数值和所述第一预设频率确定垂直同步信号的时间间隔；determining a time interval of a vertical synchronization signal according to the first count value and the first preset frequency; 按照第二预设频率对连续的两帧换子帧信号进行计数，获得第二计数值；Counting the continuous two-frame-for-subframe signal according to the second preset frequency to obtain a second count value; 根据所述第二计数值和所述第二预设频率确定换子帧信号的时间间隔。A time interval for changing subframe signals is determined according to the second count value and the second preset frequency. 9.一种LED显示设备，其特征在于，包括：9. An LED display device, characterized in that it comprises: 至少一个处理器；以及，at least one processor; and, 与所述至少一个处理器通信连接的存储器；其中，a memory communicatively coupled to the at least one processor; wherein, 所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行权利要求1-6任一项所述的方法。The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can perform the method described in any one of claims 1-6. method. 10.一种非易失性计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机可执行指令，当所述计算机可执行指令被处理器所执行时，使所述处理器执行如权利要求1-6任一项所述的方法。10. A non-volatile computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, the processing The device performs the method according to any one of claims 1-6.
CN202111475219.3A 2021-12-04 2021-12-04 Refresh rate adaptive adjustment method, device and LED display device Pending CN116229877A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202111475219.3A CN116229877A (en) 2021-12-04 2021-12-04 Refresh rate adaptive adjustment method, device and LED display device
PCT/CN2022/073012 WO2023097879A1 (en) 2021-12-04 2022-01-20 Adaptive adjustment method and apparatus for refresh rate, and led display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111475219.3A CN116229877A (en) 2021-12-04 2021-12-04 Refresh rate adaptive adjustment method, device and LED display device

Publications (1)

Publication Number Publication Date
CN116229877A true CN116229877A (en) 2023-06-06

Family

ID=86589660

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111475219.3A Pending CN116229877A (en) 2021-12-04 2021-12-04 Refresh rate adaptive adjustment method, device and LED display device

Country Status (2)

Country Link
CN (1) CN116229877A (en)
WO (1) WO2023097879A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09127911A (en) * 1995-10-31 1997-05-16 Fujitsu Ltd Display device and driving method thereof
CN1700282A (en) * 2004-05-18 2005-11-23 株式会社半导体能源研究所 Semiconductor display device and driving method
CN102804255A (en) * 2010-03-30 2012-11-28 夏普株式会社 Liquid crystal display device and liquid crystal display method
US20150187252A1 (en) * 2013-12-27 2015-07-02 Samsung Display Co., Ltd. Driving method of display apparatus and display apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102750932B (en) * 2006-07-31 2014-12-03 夏普株式会社 Display controller, display device, display system, and method for controlling display device
JP4312238B2 (en) * 2007-02-13 2009-08-12 株式会社ソニー・コンピュータエンタテインメント Image conversion apparatus and image conversion method
CN106898312A (en) * 2015-12-21 2017-06-27 联芯科技有限公司 A kind of control method of liquid crystal display, system and intelligent synchronization module
WO2021120124A1 (en) * 2019-12-19 2021-06-24 上海飞来信息科技有限公司 Method and apparatus for video display, and computer storage medium
US11227561B2 (en) * 2020-03-01 2022-01-18 Novatek Microelectronics Corp. Display driver circuit suitable for applications of variable refresh rate
CN111292668B (en) * 2020-03-30 2022-09-27 Tcl华星光电技术有限公司 Method and device for adjusting refresh frequency of display panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09127911A (en) * 1995-10-31 1997-05-16 Fujitsu Ltd Display device and driving method thereof
CN1700282A (en) * 2004-05-18 2005-11-23 株式会社半导体能源研究所 Semiconductor display device and driving method
CN102804255A (en) * 2010-03-30 2012-11-28 夏普株式会社 Liquid crystal display device and liquid crystal display method
US20150187252A1 (en) * 2013-12-27 2015-07-02 Samsung Display Co., Ltd. Driving method of display apparatus and display apparatus

Also Published As

Publication number Publication date
WO2023097879A1 (en) 2023-06-08

Similar Documents

Publication Publication Date Title
US9786255B2 (en) Dynamic frame repetition in a variable refresh rate system
US9837030B2 (en) Refresh rate dependent adaptive dithering for a variable refresh rate display
CN104808984B (en) Display interface method for refreshing and device
CN103700133B (en) Three-dimensional scenic Distributed Rendering Environment synchronous refresh method and system
CN109920040B (en) Display scene processing method and device, storage medium
US11341655B2 (en) Image processing method, image processing apparatus and display device
US12537932B2 (en) Virtual reality display method, device and storage medium
WO2019153723A1 (en) Video frame display method and device, television and storage medium
EP4343407A1 (en) Method for refreshing screen of head-mounted display device and head-mounted display device
CN117809593A (en) Method, display system and image signal generator for realizing real-time dynamic refresh rate
US10068549B2 (en) Cursor handling in a variable refresh rate environment
CN108600719B (en) Projection device and method for sensing ambient light brightness in real time
CN116229877A (en) Refresh rate adaptive adjustment method, device and LED display device
CN114333691B (en) Image display control method and device and image display equipment
CN102892011A (en) Stereoscopic image display method
JP2013037083A (en) Image display device and image display method
CN117075343A (en) Control method of shooting module, head-mounted display device and storage medium
CN116798371B (en) Display method, system and storage medium
CN115601488A (en) Rendering image delay compensation method, device, display device and storage medium
JP2000050315A (en) Method and apparatus for controlling gradation display of stereoscopic image
TW202105982A (en) Receiving device, video recording system and method for reducing video latency in video recording system
CN114758606B (en) A method, controller and display control system for sending field synchronization signals
CN109410306B (en) Image rendering method, device, storage medium, equipment and virtual reality system
US9900548B2 (en) Display control unit and method for generating a video signal
CN102761725B (en) A kind of liquid crystal display

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
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20230606