CN113808514B - Display screen control method and device, display screen control equipment and storage medium - Google Patents
Display screen control method and device, display screen control equipment and storage medium Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
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Abstract
The application relates to a display screen control method, a display screen control device and a storage medium. The display screen control method comprises the following steps: detecting the current time frame rate of the display screen in real time; when the current time frame rate is changed compared with the previous time frame rate, changing the brightness of the display blank interval according to a preset strategy so that the variation between the current time brightness and the previous time brightness is smaller than or equal to a preset amount; the current time brightness is the display brightness of the display screen at the current time frame rate; the last time brightness is the display brightness of the display screen under the last time brightness, so that when the frame rate is changed, the brightness of the whole display screen is changed by changing the brightness of the display blank interval, the change amount of the brightness of the front display screen and the rear display screen, of which the frame rate is changed, is smaller than the preset amount, the problem of flicker caused by the change of the brightness of the display screen in the dynamic change process of the frame rate is avoided, the display uniformity of the display screen is enhanced, and the display performance of the display screen is improved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display screen control method and apparatus, a display screen control device, and a storage medium.
Background
With the continuous development of display technology, display screens with different principles, such as an LED (Light Emitting Diode ) display screen, an LCD (Liquid Crystal Display ) display screen, etc., are developed, so that terminal devices including display screens are also layered endlessly, such as smart televisions, smart phones, computers, tablet computers, etc., and the performance requirements on the display screens are also changed along with different use scenes of the display screens, for example, for the display screen to display frame rate changing display contents (such as game contents), the display screen is required to be unable to display screen to be blocked and torn, so that in order to solve the problem, the currently generally adopted scheme is to keep the total pixel clock (pixel clock frequency) of output unchanged, and dynamically change the frame rate of the display card output by dynamically adjusting the length of V-Blank (Vertical-Blank).
However, the dynamic change of the frame rate causes the brightness of the display screen to change to cause flicker, so in the implementation process, the inventor finds that at least the following problems exist in the conventional technology: the traditional display screen can generate a flicker phenomenon in the process of displaying the dynamic change of the frame rate.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a display screen control method, apparatus, display screen control device, and storage medium capable of improving a flicker phenomenon generated in a display screen during a dynamic frame rate change display.
In a first aspect, an embodiment of the present application provides a display screen control method, including the following steps:
detecting the current time frame rate of the display screen in real time;
when the current time frame rate is changed compared with the previous time frame rate, changing the brightness of the display blank interval according to a preset strategy so that the variation between the current time brightness and the previous time brightness is smaller than or equal to a preset amount; the current time brightness is the display brightness of the display screen at the current time frame rate; the last time brightness is the display brightness of the display screen under the last time brightness.
Optionally, the preset strategy is to adjust the common voltage signal of the array substrate;
when the current time frame rate is changed compared with the previous time frame rate, the brightness of the display blank interval is changed according to a preset strategy in the step of:
when the current time frame rate is changed compared with the previous time frame rate, the common voltage signal of the array substrate is regulated so as to change the brightness of the display blank interval.
Optionally, in the step of adjusting the common voltage signal of the array substrate to change the brightness of the display blank interval when the current time frame rate is changed compared with the previous time frame rate:
when the current time frame rate is larger than the previous time frame rate, the common voltage signal of the array substrate is regulated down so as to reduce the brightness of the display blank interval;
when the current time frame rate is smaller than the previous time frame rate, the common voltage signal of the array substrate is regulated to increase the brightness of the display blank interval.
Optionally, the method for modulating the common voltage signal of the array substrate includes:
when the display screen is in a display blank interval, a corresponding pulse signal is input to adjust the common voltage signal of the array substrate.
Optionally, the preset strategy is to adjust the common voltage signal of the color film substrate;
when the current time frame rate is changed compared with the previous time frame rate, the brightness of the display blank interval is changed according to a preset strategy in the step of:
when the current time frame rate is changed compared with the previous time frame rate, the common voltage signal of the color film substrate is regulated so as to change the brightness of the display blank interval.
Optionally, when the current time frame rate is changed compared with the previous time frame rate, adjusting the common voltage signal of the color film substrate to change the brightness of the display blank interval, wherein the step of:
when the current time frame rate is larger than the previous time frame rate, the common voltage signal of the color film substrate is regulated down so as to reduce the brightness of the display blank interval;
and when the current time frame rate is smaller than the previous time frame rate, the common voltage signal of the color film substrate is regulated to increase the brightness of the display blank interval.
Optionally, the method for adjusting the common voltage signal of the color film substrate includes:
when the display screen is in a display blank interval, a corresponding preset frequency pulse signal is input to regulate a common voltage signal of the color film substrate.
Optionally, the preset strategy is to adjust the common voltage signal of the array substrate and the common voltage signal of the color film substrate simultaneously;
when the current time frame rate is changed compared with the previous time frame rate, the brightness of the display blank interval is changed according to a preset strategy in the step of:
when the current time frame rate is changed compared with the previous time frame rate, the common voltage signal of the array substrate and the common voltage signal of the color film substrate are regulated at the same time so as to change the brightness of the display blank interval.
Optionally, the step of detecting the current time frame rate of the display screen in real time includes the steps of:
detecting the STV length of an effective display interval of a display screen in real time;
the current time frame rate is determined based on the STV length.
Optionally, after the step of changing the brightness of the display blank interval according to a preset policy when the current time frame rate is changed compared with the previous time frame rate so that the variation between the current time brightness and the previous time brightness is smaller than or equal to the preset amount, the method further includes the steps of:
and when the display screen enters the effective display interval from the display blank interval, recovering the preset brightness corresponding to the effective display interval.
In a second aspect, an embodiment of the present application further provides a display screen control device, including:
the detection module is used for detecting the current time frame rate of the display screen in real time;
the adjusting module is used for changing the brightness of the display blank interval according to a preset strategy when the current time frame rate is changed compared with the previous time frame rate, so that the variation between the current time brightness and the previous time brightness is smaller than or equal to the preset quantity; the current time brightness is the display brightness of the display screen at the current time frame rate; the last time brightness is the display brightness of the display screen under the last time brightness.
In a third aspect, an embodiment of the present application further provides a display screen control device, including a memory and a processor, where the memory stores a computer program, and the processor implements the steps of the method when executing the computer program.
In a fourth aspect, embodiments of the present application further provide a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor implements the steps of the method described above.
One of the above technical solutions has the following advantages and beneficial effects:
in the display operation process of the display screen, the display control equipment detects the current time frame rate of the display screen in real time, and when the current time frame rate is changed compared with the previous time frame rate, the display control equipment changes the brightness of a display blank interval according to a preset strategy so that the change amount between the current time brightness and the previous time brightness is smaller than or equal to a preset amount, and therefore when the frame rate is changed, the brightness of the whole display screen is changed by changing the brightness of the display blank interval, the change amount of the brightness of the front display screen and the back display screen, which are changed in the frame rate, is smaller than the preset amount, the problem of flicker caused by the change of the brightness of the display screen in the dynamic change process of the frame rate is avoided, the display uniformity of the display screen is enhanced, and the display performance of the display screen is improved.
Drawings
Fig. 1 is a schematic flow chart of a display screen control method in an embodiment of the application.
Fig. 2 is a flowchart illustrating a step of detecting a frame rate according to an embodiment of the present application.
Fig. 3 is a block diagram of a display screen control device according to an embodiment of the present application.
Fig. 4 is an internal structural diagram of a computer device in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The display screen control method can be applied to display control equipment (such as a logic board) of a display screen, and can control the display effect of the display screen so as to solve the problem that the traditional display screen can generate a flicker phenomenon in the display process of dynamic frame rate change. Exemplary, as shown in fig. 1, there is provided a display screen control method, including the steps of:
step S110, detecting the current time frame rate of the display screen in real time.
It will be appreciated that the frame rate of the display screen remains stable under typical usage scenarios (e.g., displaying document content), but changes dynamically under severe usage scenarios (e.g., game scenarios). It may occur that the frame rate changes from the last millisecond to the next millisecond in units of milliseconds, and in particular, the frame rate may become high or low. Alternatively, it may occur that the frame rate changes from the frame rate of the previous second to the frame rate of the next second in units of seconds, and in particular, the frame rate may become high or low, or it may occur that the frame rate changes from the frame rate in the previous minute to the frame rate in the next minute in units of minutes. Specifically, the frame rate may become high or low. Alternatively still, the current time may be on a different time scale than the last time, which may be, for example, a few milliseconds. Also, the absolute value of the difference between the current time frame rate and the last time frame rate may be large or small. In general, the frame rate of the display screen may vary randomly.
According to the relation between the frame rate and the brightness of the display screen, when the frame rate is higher, the brightness of the display screen is higher, and when the frame rate is lower, the brightness of the display screen is lower, so that the brightness of the display screen is changed at the moment of changing the frame rate, a flicker phenomenon is generated, and when the frame rate is changed faster, the flicker phenomenon is more obvious. Where the frame rate refers to the frequency (rate) at which bitmap images in units of frames continuously appear on the display screen.
In order to implement the display screen control method of the present application, it is necessary to detect the current time frame rate of the display screen in real time, in one example, a manner of detecting the current time frame rate is provided, as shown in fig. 2, and in the step of detecting the current time frame rate of the display screen in real time, the method includes the steps of:
step S210, detecting the STV (Start voltage) length of the effective display section of the display screen in real time.
Step S220, determining the current time frame rate according to the STV length.
It should be noted that, the effective display interval (Active area) is an interval in which each frame of picture is displayed on the display screen, and the current time frame rate can be detected by detecting the STV length.
Step S120, when the current time frame rate is changed compared with the previous time frame rate, changing the brightness of the display blank interval according to a preset strategy so that the variation between the current time brightness and the previous time brightness is smaller than or equal to the preset amount; the current time brightness is the display brightness of the display screen at the current time frame rate; the last time brightness is the display brightness of the display screen under the last time brightness.
The Blank area (Blank area) is a transition area or a gap area between effective display areas, and is a gap between one frame of picture and the next frame of picture. The brightness of the display blank interval is changed, so that the integral brightness of the display screen in the process of displaying the content can be regulated, and the effect required to be achieved by regulating the brightness of the display screen is as follows: the amount of change between the current time brightness of the display screen at the current time frame rate and the last time brightness of the display screen at the last time frame rate is less than or equal to a preset amount. In one example, it may be expressed as: the variation is the absolute value of the difference between the current time brightness and the last time brightness, and the absolute value is smaller than or equal to the preset value. The current time brightness is the average brightness in the current time, and the last time brightness is the average brightness in the last time, for example, the average brightness in 60 frames of pictures can be measured in the current time or the last time. The preset amount is a brightness change set value, the preset amount needs to ensure that the human eyes cannot perceive the brightness change, and the preset amount can be determined according to actual requirements, for example, the preset amount is 3%, 2% or 1.5%.
The current time frame rate may be changed from the previous time frame rate by indicating that the current time frame rate is greater than the previous time frame rate or by indicating that the current time frame rate is less than the previous time frame rate. The absolute value of the amount of change between the current time frame rate and the last time frame rate may be large or small. According to different changing conditions of the frame rate, the brightness of the display blank interval needs to be adjusted by adopting corresponding strategies, for example, the following strategies are provided:
in one example, the preset strategy is to mediate an array substrate common voltage signal (AVCOM). The different frame rates can lead to different discharge time of TFT (Thin Film Transistor ) devices on the array substrate, thereby causing different brightness of display screen under different frame rates, and the storage capacity of the storage capacitor on the array substrate can be changed by adjusting the common voltage signal of the array substrate, so as to change the electric leakage condition of the TFT devices in the display blank interval, and finally adjust the brightness of the display blank interval. When the common voltage signal of the array substrate is increased, the storage capacity of the storage capacitor on the array substrate is improved, so that the leakage condition of the TFT device in a display blank interval is slowed down. When the common voltage signal of the array substrate is reduced, the storage capacity of the storage capacitor on the array substrate is reduced, so that the leakage condition of the TFT device in a display blank interval is accelerated. The principle of changing the storage capacity of the storage capacitor is as follows:
the wiring of the array substrate public voltage signal is arranged in the first layer metal layer of the array substrate, when the array substrate public voltage signal is increased, the As layer can generate charge accumulation to form a conductor, so that the capacitance interval formed between semiconductors is reduced, the capacitance of the storage capacitor is increased, and the electric leakage of the TFT device in a display blank interval is reduced. The formula is as follows:
wherein Cst represents the capacitance of the storage capacitor, S represents the plate area of the storage capacitor, and d represents the distance between the plates of the storage capacitor.
Correspondingly, when the current time frame rate is changed compared with the previous time frame rate, the brightness of the display blank interval is changed according to a preset strategy in the step of:
when the current time frame rate is changed compared with the previous time frame rate, the common voltage signal of the array substrate is regulated so as to change the brightness of the display blank interval. It can be understood that the amplitude of the common voltage signal of the mediation array substrate is small when the current time frame rate is changed less than the previous time frame rate, and similarly, the amplitude of the common voltage signal of the mediation array substrate is large when the current time frame rate is changed more than the previous time frame rate. The concrete steps are as follows: when the current time frame rate is larger than the previous time frame rate, the common voltage signal of the array substrate is regulated down so as to reduce the brightness of the display blank interval; when the current time frame rate is smaller than the previous time frame rate, the common voltage signal of the array substrate is regulated to increase the brightness of the display blank interval.
The mode of modulating the common voltage signal of the array substrate can be selected according to specific practical needs, and in one mode: when the display screen is in a display blank interval, a corresponding pulse signal is input to adjust the common voltage signal of the array substrate. The specific pulse signal to be inputted may be selected according to the actual need, and in order to maintain high-frequency brightness in one scene, a rectangular pulse signal whose rising/falling/amplitude may be changed according to the actual change of the frame rate may be inputted. In another scene, in order to prevent a scroll from being generated by a change in brightness, a triangle pulse signal whose rising/falling/amplitude can be changed according to an actual change in frame rate is input.
In one example, the preset strategy is to mediate the color film substrate common voltage signal (CVCOM). The common voltage signal of the color film substrate is a reference voltage for generating GM voltage, and a source of Data voltage is generated when the GM voltage, if the common voltage signal of the color film substrate deviates from the center voltage of + -GM difference value, the display screen can generate Data voltages with different potential levels when positive and negative frames are switched, so that the subjective flicker is caused by brightness difference. Under the scene of dynamic change of frame rate, different frame rates lead to different discharge time of the TFT device, so that Data voltage at different frame rates is different, and brightness of a blank interval is regulated by dynamically adjusting a common voltage signal of the color film substrate. When the common voltage signal of the color film substrate is increased, the electric storage capacity of the liquid crystal capacitor on the color film substrate is improved, so that the electric leakage condition of the TFT device in a display blank interval is slowed down. When the common voltage signal of the color film substrate is reduced, the electric storage capacity of the liquid crystal capacitor on the array substrate is reduced, so that the electric leakage condition of the TFT device in a display blank interval is accelerated. The principle of changing the storage capacity of the liquid crystal capacitor is the same as that of the storage capacitor, and will not be described here again.
Correspondingly, when the current time frame rate is changed compared with the previous time frame rate, the brightness of the display blank interval is changed according to a preset strategy in the step of:
when the current time frame rate is changed compared with the previous time frame rate, the common voltage signal of the color film substrate is regulated so as to change the brightness of the display blank interval. It can be understood that the current time frame rate is smaller than the previous time frame rate, so the amplitude of the common voltage signal of the color film regulating substrate is smaller, and similarly, the current time frame rate is larger than the previous time frame rate, so the amplitude of the common voltage signal of the color film regulating substrate is larger. The concrete steps are as follows: when the current time frame rate is larger than the previous time frame rate, the common voltage signal of the color film substrate is regulated down so as to reduce the brightness of the display blank interval; and when the current time frame rate is smaller than the previous time frame rate, the common voltage signal of the color film substrate is regulated to increase the brightness of the display blank interval.
The mode of adjusting the common voltage signal of the color film substrate can be selected according to specific practical needs, and in one mode: when the display screen is in a display blank interval, a corresponding preset frequency pulse signal is input to regulate a common voltage signal of the color film substrate. In one example, the preset frequency pulse signal is a 50Hz (hertz) pulse signal to maintain display brightness.
In one example, the preset strategy is to simultaneously mediate the array substrate common voltage signal and the color film substrate common voltage signal. In this example, the common voltage signal of the individual array substrate and the common voltage signal of the color film substrate are the same as the principles described in the foregoing two examples, and will not be described herein again. The example cooperates by simultaneously adjusting the common voltage signal of the array substrate and the common voltage signal of the color film substrate to change the brightness of the display blank interval.
Correspondingly, when the current time frame rate is changed compared with the previous time frame rate, the brightness of the display blank interval is changed according to a preset strategy in the step of:
when the current time frame rate is changed compared with the previous time frame rate, the common voltage signal of the array substrate and the common voltage signal of the color film substrate are regulated at the same time so as to change the brightness of the display blank interval.
In the process of displaying the content on the display screen, the display blank interval and the effective display interval are alternately arranged in sequence, so that the whole brightness of the display screen cannot flicker, the brightness of the display blank interval is adjusted, and the effective display interval needs to be recovered when the display blank interval is finished and the effective display interval is entered. In one example, after the step of changing the brightness of the display blank interval according to the preset policy so that the amount of change between the current time brightness and the previous time brightness is less than or equal to the preset amount when the current time frame rate is changed compared with the previous time frame rate, the method further comprises the steps of:
and when the display screen enters the effective display interval from the display blank interval, recovering the preset brightness corresponding to the effective display interval.
Since the brightness is related to the driving voltage, in one example, the effective display section is brought into the preset brightness by restoring the preset voltage corresponding to the effective display section.
In the display operation process of the display screen, the display control equipment detects the current time frame rate of the display screen in real time, and when the current time frame rate is changed compared with the previous time frame rate, the display control equipment changes the brightness of a display blank interval according to a preset strategy so that the change amount between the current time brightness and the previous time brightness is smaller than or equal to a preset amount, and therefore when the frame rate is changed, the brightness of the whole display screen is changed by changing the brightness of the display blank interval, the change amount of the brightness of the front display screen and the back display screen, which are changed in the frame rate, is smaller than the preset amount, the problem of flicker caused by the change of the brightness of the display screen in the dynamic change process of the frame rate is avoided, the display uniformity of the display screen is enhanced, and the display performance of the display screen is improved.
It should be understood that, although the steps in the flowcharts of fig. 1 and 2 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 1 and 2 may include multiple sub-steps or phases that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the sub-steps or phases are performed necessarily occur sequentially, but may be performed alternately or alternately with at least a portion of the sub-steps or phases of other steps or other steps.
Corresponding to the display screen control method of the present application, as shown in fig. 3, there is provided a display screen control device, including:
the detecting module 310 is configured to detect a current time frame rate of the display screen in real time;
the mediation module 320 is configured to change, according to a preset policy, the brightness of the display blank interval when the current time frame rate is changed compared with the previous time frame rate, so that the variation between the current time brightness and the previous time brightness is less than or equal to the preset amount; the current time brightness is the display brightness of the display screen at the current time frame rate; the last time brightness is the display brightness of the display screen under the last time brightness.
The specific limitation of the display control device can be referred to the limitation of the display control method hereinabove, and the description thereof will not be repeated here. The above-mentioned various modules in the display screen control apparatus may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In order to implement the display screen control method of the present application, an exemplary display screen control apparatus is provided, and an internal structure diagram thereof may be as shown in fig. 4. The display screen control device comprises a processor, a memory, an interface and a database which are connected through a system bus. Wherein the processor of the display control device is configured to provide computing and control capabilities. The memory of the display screen control device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the display screen control device is used for storing data. The interface of the display screen control device is used for being connected with a display screen. The computer program is executed by a processor to implement a display screen control method.
Those skilled in the art will appreciate that the structures shown in FIG. 4 are block diagrams only and do not constitute a limitation of the computer device on which the present aspects apply, and that a particular computer device may include more or less components than those shown, or may combine some of the components, or have a different arrangement of components.
By way of example, there is provided a display screen control apparatus comprising a memory and a processor, the memory having stored therein a computer program which when executed by the processor performs the steps of:
detecting the current time frame rate of the display screen in real time;
when the current time frame rate is changed compared with the previous time frame rate, changing the brightness of the display blank interval according to a preset strategy so that the variation between the current time brightness and the previous time brightness is smaller than or equal to a preset amount; the current time brightness is the display brightness of the display screen at the current time frame rate; the last time brightness is the display brightness of the display screen under the last time brightness.
Illustratively, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
detecting the current time frame rate of the display screen in real time;
when the current time frame rate is changed compared with the previous time frame rate, changing the brightness of the display blank interval according to a preset strategy so that the variation between the current time brightness and the previous time brightness is smaller than or equal to a preset amount; the current time brightness is the display brightness of the display screen at the current time frame rate; the last time brightness is the display brightness of the display screen under the last time brightness.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (8)
1. The display screen control method is characterized by comprising the following steps of:
detecting the current time frame rate of the display screen in real time;
when the current time frame rate is changed compared with the previous time frame rate, changing the brightness of the display blank interval according to a preset strategy so that the variation between the current time brightness and the previous time brightness is smaller than or equal to a preset amount; the current time brightness is the display brightness of the display screen at the current time frame rate; the last-time brightness is the display brightness of the display screen under the last-time brightness; the display blank interval is a transition interval or a gap interval between effective display intervals;
the preset strategy is to adjust the common voltage signal of the array substrate and/or adjust the common voltage signal of the color film substrate; when the current time frame rate is changed compared with the previous time frame rate, changing the brightness of the display blank interval according to a preset strategy in the step of:
when the current time frame rate is changed compared with the previous time frame rate, adjusting the array substrate public voltage signal and/or the color film substrate public voltage signal so as to change the brightness of the display blank interval;
when the current time frame rate is changed compared with the previous time frame rate, adjusting the common voltage signal of the array substrate and/or the common voltage signal of the color film substrate to change the brightness of the display blank interval, wherein the method comprises the following steps:
when the current time frame rate is greater than the previous time frame rate, the common voltage signal of the array substrate and/or the common voltage signal of the color film substrate are turned down so as to reduce the brightness of the display blank interval;
and when the current time frame rate is smaller than the previous time frame rate, the common voltage signal of the array substrate and/or the common voltage signal of the color film substrate are/is regulated to increase the brightness of the display blank interval.
2. The method of claim 1, wherein the mode of adjusting the common voltage signal of the array substrate comprises:
when the display screen is in the display blank interval, a corresponding pulse signal is input to adjust the common voltage signal of the array substrate.
3. The method of claim 1, wherein the mode of adjusting the common voltage signal of the color film substrate comprises:
when the display screen is in the display blank interval, a corresponding preset frequency pulse signal is input to regulate the common voltage signal of the color film substrate.
4. A method according to claim 1, 2 or 3, wherein the step of detecting the current time frame rate of the display in real time comprises the steps of:
detecting the STV length of an effective display interval of the display screen in real time;
and determining the current time frame rate according to the STV length.
5. A display screen control method according to claim 1, 2 or 3, wherein, after the step of changing the brightness of the display blank interval according to a preset strategy so that the amount of change between the current time brightness and the last time brightness is less than or equal to a preset amount when the current time frame rate is changed compared with the last time frame rate, the method further comprises the step of:
and when the display screen enters an effective display interval from the display blank interval, recovering the preset brightness corresponding to the effective display interval.
6. A display screen control apparatus, comprising:
the detection module is used for detecting the current time frame rate of the display screen in real time;
the adjusting module is used for changing the brightness of the display blank interval according to a preset strategy when the current time frame rate is changed compared with the last time frame rate, so that the variation between the current time brightness and the last time brightness is smaller than or equal to the preset quantity; the current time brightness is the display brightness of the display screen at the current time frame rate; the last-time brightness is the display brightness of the display screen under the last-time brightness;
the display blank interval is a transition interval or a gap interval between effective display intervals;
the mediation module is specifically configured to: when the current time frame rate is greater than the previous time frame rate, the common voltage signal of the array substrate and/or the common voltage signal of the color film substrate are turned down so as to reduce the brightness of the display blank interval; and when the current time frame rate is smaller than the previous time frame rate, the common voltage signal of the array substrate and/or the common voltage signal of the color film substrate are/is regulated to increase the brightness of the display blank interval.
7. A display screen control device comprising a memory and a processor, the memory storing a computer program, the processor implementing the steps of the method of any one of claims 1 to 5 when the computer program is executed.
8. A computer readable storage medium, characterized in that it has stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of claims 1 to 5.
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| CN107039013A (en) * | 2017-05-25 | 2017-08-11 | 上海中航光电子有限公司 | A kind of display driver circuit plate, its driving method and display device |
| CN110060642A (en) * | 2018-01-19 | 2019-07-26 | 三星显示有限公司 | Receiving device and liquid crystal display including receiving device |
| CN111816109A (en) * | 2020-07-03 | 2020-10-23 | 深圳市华星光电半导体显示技术有限公司 | Display method and device and display equipment |
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| JP2010154343A (en) * | 2008-12-25 | 2010-07-08 | Toshiba Corp | Video signal processing apparatus, video signal processing method thereof, and video display device |
| KR102466099B1 (en) * | 2017-12-29 | 2022-11-14 | 삼성디스플레이 주식회사 | Display apparatus having the same and method of driving display panel using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107039013A (en) * | 2017-05-25 | 2017-08-11 | 上海中航光电子有限公司 | A kind of display driver circuit plate, its driving method and display device |
| CN110060642A (en) * | 2018-01-19 | 2019-07-26 | 三星显示有限公司 | Receiving device and liquid crystal display including receiving device |
| CN111816109A (en) * | 2020-07-03 | 2020-10-23 | 深圳市华星光电半导体显示技术有限公司 | Display method and device and display equipment |
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