CN113808514A - 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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- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000008859 change Effects 0.000 claims abstract description 40
- 239000000758 substrate Substances 0.000 claims description 76
- 238000004590 computer program Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 11
- 239000010408 film Substances 0.000 description 23
- 239000003990 capacitor Substances 0.000 description 13
- 230000005611 electricity Effects 0.000 description 5
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- 239000004973 liquid crystal related substance Substances 0.000 description 4
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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
- G09G2340/0435—Change or adaptation of the frame rate of the video stream
Abstract
The application relates to a display screen control method and device, display screen control equipment 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 last time frame rate, changing the brightness of the display blank interval according to a preset strategy so as to enable the variation between the current time brightness and the last time brightness to be 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; last time luminance is the display luminance that the display screen was in last time luminance down to the realization is when the frame rate changes, through changing the luminance that shows blank interval, in order to change the luminance of whole display screen, make the frame rate change volume of display screen luminance before and after changing be less than the volume of predetermineeing, in order to avoid the problem of the scintillation that leads to because display screen luminance changes among the frame rate dynamic change process, the demonstration homogeneity of display screen has been strengthened, in order to promote the display performance of display screen.
Description
Technical Field
The present application 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 appear, such as a Light Emitting Diode (LED) Display screen, a Liquid Crystal Display (LCD) Display screen, and the like, meanwhile, terminal equipment comprising a display screen also comes out endlessly, such as smart televisions, smart phones, computers, tablet computers and the like, and with different use scenes of the display screen, the performance requirements of the display screen are changed, for example, for the frame rate of the display screen to change the display contents (such as game contents), the display screen is required not to be jammed and torn, to solve this problem, a scheme is generally adopted at present to keep the total pixel clock (pixel clock frequency) of the output constant, the frame rate output by the video card is dynamically changed by dynamically adjusting the length of the V-Blank (Vertical-Blank).
However, the frame rate dynamic change may cause the brightness of the display screen to change and cause flicker, and therefore, in the implementation process, the inventor finds that at least the following problems exist in the conventional technology: the conventional display screen generates a flicker phenomenon in the display process of the dynamic change of the frame rate.
Disclosure of Invention
In view of the above, it is necessary to provide a display screen control method, a display screen control device, a display screen control apparatus, and a storage medium, which can improve a flicker phenomenon generated during a dynamic frame rate change display of a display screen.
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 last time frame rate, changing the brightness of the display blank interval according to a preset strategy so as to enable the variation between the current time brightness and the last time brightness to be 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 at the last time brightness.
Optionally, the preset strategy is to modulate a common voltage signal of the array substrate;
when the current time frame rate is changed compared with the last time frame rate, the step of changing the brightness of the display blank interval according to a preset strategy comprises the following steps:
when the current time frame rate is changed compared with the last time frame rate, the common voltage signal of the array substrate is adjusted to change the brightness of the display blank interval.
Optionally, when the current time frame rate is changed from the previous time frame rate, the step of adjusting the common voltage signal of the array substrate to change the brightness of the display blank interval includes:
when the current time frame rate is greater than the last time frame rate, the common voltage signal of the array substrate is reduced to reduce the brightness of a display blank interval;
and when the current time frame rate is less than the last time frame rate, the common voltage signal of the array substrate is increased so as to increase the brightness of the display blank interval.
Optionally, the adjusting the common voltage signal of the array substrate includes:
when the display screen is in a display blank interval, inputting a corresponding pulse signal to adjust the common voltage signal of the array substrate.
Optionally, the preset strategy is to mediate a common voltage signal of the color film substrate;
when the current time frame rate is changed compared with the last time frame rate, the step of changing the brightness of the display blank interval according to a preset strategy comprises the following steps:
and when the current time frame rate is changed compared with the last time frame rate, adjusting the common voltage signal of the color film substrate 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, the step of adjusting the common voltage signal of the color film substrate to change the brightness of the display blank interval includes:
when the current time frame rate is greater than the last time frame rate, the common voltage signal of the color film substrate is adjusted to be low so as to reduce the brightness of a display blank interval;
and when the current time frame rate is less than the last time frame rate, the common voltage signal of the color film substrate is increased so as to increase the brightness of the display blank interval.
Optionally, the adjusting of the common voltage signal of the color filter substrate includes:
and when the display screen is in a display blank interval, inputting a corresponding preset frequency pulse signal to mediate a common voltage signal of the color film substrate.
Optionally, the preset strategy is to simultaneously mediate the array substrate common voltage signal and the color film substrate common voltage signal;
when the current time frame rate is changed compared with the last time frame rate, the step of changing the brightness of the display blank interval according to a preset strategy comprises the following steps:
when the current time frame rate is changed compared with the last time frame rate, the array substrate common voltage signal and the color film substrate common voltage signal are simultaneously adjusted 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 the display screen in real time;
and determining the current time frame rate according to the STV length.
Optionally, when the current frame rate is changed from the previous frame rate, the brightness of the display blank interval is changed according to a preset policy, so that the variation between the current brightness and the previous brightness is smaller than or equal to a preset amount, and the method further includes the following steps:
and when the display screen enters the effective display interval from the display blank interval, restoring 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 as to enable the variation between the current time brightness and the previous time brightness to be 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 at the last time brightness.
In a third aspect, an embodiment of the present application further provides a display screen control device, which includes 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, the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the above method.
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 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, and therefore when the frame rate is changed, the brightness of the display blank interval is changed through changing the brightness of the display blank interval, the brightness of the whole display screen is changed, the variation of the brightness of the display screen before and after 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.
Drawings
Fig. 1 is a schematic flowchart of a display screen control method in an embodiment of the present application.
Fig. 2 is a flowchart illustrating a frame rate detecting step according to an embodiment of the present application.
Fig. 3 is a block diagram of a display screen control device in an embodiment of the present application.
Fig. 4 is an internal structural diagram of a computer device in the 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 is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The display screen control method provided by the application can be applied to display control equipment (such as a logic board) of a display screen to control the display effect of the display screen, so that the problem that the traditional display screen can generate a flicker phenomenon in the frame rate dynamic change display process is solved. Illustratively, as shown in fig. 1, there is provided a display screen control method, comprising the steps of:
step S110, detecting a current time frame rate of the display screen in real time.
It can be understood that the frame rate of the display screen remains stable in a general usage scenario (e.g., displaying document contents), but the frame rate of the display screen dynamically changes in a severe usage scenario (e.g., a game scenario). It may occur that the frame rate changes from the last millisecond frame rate to the next millisecond frame rate in units of milliseconds, and in particular, the frame rate may become high or low. Alternatively, a change in the frame rate from the last second to the next second in units of seconds may occur, and specifically, the frame rate may be high or low, or a change in the frame rate from the last minute to the next minute in units of seconds may occur. Specifically, the frame rate may be high or low. Alternatively, the current time may not be on the same time scale as the last time, e.g., the current time may be a few milliseconds and the last time may be a few seconds. Moreover, the absolute value of the difference between the current frame rate and the previous frame rate may be large or small. In general, the frame rate of the display screen may vary randomly.
According to the relationship between the frame rate and the brightness of the display screen, the higher the frame rate is, the higher the brightness of the display screen is, and the lower the frame rate is, the lower the brightness of the display screen is, so that at the moment when the frame rate changes, the brightness of the display screen changes, and a flicker phenomenon occurs, and the flicker phenomenon becomes more obvious when the frame rate changes faster. Here, the frame rate refers to a 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, and in one example, a manner of detecting the current time frame rate is provided, as shown in fig. 2, the step of detecting the current time frame rate of the display screen in real time includes the steps of:
step S210 is to detect the STV (Start voltage) length of the effective display interval 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 the display screen displays, 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 as to enable the variation between the current time brightness and the previous time brightness to be less 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 at the last time brightness.
Note that the display Blank interval (Blank area) is a transition interval or a gap interval between effective display intervals, and is a gap between one frame picture and the next frame picture. Through changing the luminance that shows blank interval, can mediate the holistic luminance of display screen in the display content in-process, the effect that mediation display screen's luminance needs to reach does: the variation 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 can be expressed as: the variation is an absolute value of a difference between the brightness at the current time and the brightness at the previous time, and the absolute value is less than or equal to a preset amount. The current-time brightness is an average brightness in the current time, and the previous-time brightness is an average brightness in the previous time, for example, the average brightness in a 60-frame picture can be measured in the current time or in the previous time. The preset amount is a set value of the brightness change, the preset amount needs to be set to ensure that the human eye cannot detect 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 frame rate may be greater than the previous frame rate, or may be smaller than the previous frame rate. The absolute value of the variation between the current frame rate and the previous frame rate may be larger or smaller. According to different changes of the frame rate, corresponding strategies need to be adopted to adjust the brightness of the display blank interval, for example, the following strategies are provided:
in one example, the preset strategy is to modulate an array substrate common voltage signal (AVCOM). The discharge time of a Thin Film Transistor (TFT) device on the array substrate is different under different frame rates, so that the brightness of the display screen is different under different frame rates, the electricity storage capacity of a storage capacitor on the array substrate can be changed by adjusting the common voltage signal of the array substrate, the electric leakage condition of the TFT device in a display blank interval is changed, and the brightness of the display blank interval is adjusted finally. When the common voltage signal of the array substrate is increased, the electricity storage capacity of the storage capacitor on the array substrate can be improved, and therefore the electric leakage condition of the TFT device in the display blank interval is relieved. When the common voltage signal of the array substrate is reduced, the electricity storage capacity of the storage capacitor on the array substrate is reduced, so that the electric leakage condition of the TFT device in the 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 common voltage signal is arranged in the first layer of metal layer of the array substrate, when the array substrate common voltage signal is improved, the As layer can generate electric charge accumulation to form a conductor, the capacitor distance formed between the semiconductors is reduced, the capacitance of the storage capacitor is increased, and the electric leakage of the TFT device in the display blank interval is reduced. The formula is as follows:
wherein Cst represents a capacitance of the storage capacitor, S represents an area of a plate of the storage capacitor, and d represents a distance between the plates of the storage capacitor.
Correspondingly, when the current time frame rate is changed compared with the last time frame rate, the step of changing the brightness of the display blank interval according to a preset strategy comprises the following steps:
when the current time frame rate is changed compared with the last time frame rate, the common voltage signal of the array substrate is adjusted to change the brightness of the display blank interval. It can be understood that if the change of the current time frame rate is smaller than the previous time frame rate, the amplitude of the modulating array substrate common voltage signal is also smaller, and similarly, if the change of the current time frame rate is larger than the previous time frame rate, the amplitude of the modulating array substrate common voltage signal is also larger. The concrete expression is as follows: when the current time frame rate is greater than the last time frame rate, the common voltage signal of the array substrate is reduced to reduce the brightness of a display blank interval; and when the current time frame rate is less than the last time frame rate, the common voltage signal of the array substrate is increased so as to increase the brightness of the display blank interval.
The mode of adjusting the common voltage signal of the array substrate can be selected according to specific actual needs, and in one mode: when the display screen is in a display blank interval, inputting a corresponding pulse signal to adjust the common voltage signal of the array substrate. The specific input pulse signal can be selected according to actual needs, and in order to maintain high-frequency brightness in one scene, a rectangular pulse signal can be input, and the rising/falling/amplitude of the rectangular pulse signal can be changed according to the actual change situation of the frame rate. In another scenario, in order to prevent the change of brightness from generating scrolling, a triangular pulse signal is input, and the rising/falling/amplitude of the triangular pulse signal can be changed according to the actual change condition of the frame rate.
In one example, the preset strategy is to adjust a color film substrate common voltage signal (CVCOM). If the color film substrate common voltage signal deviates from the central voltage of the plus or minus GM difference value, the display screen can generate Data voltages with different potential levels when switching between a positive frame and a negative frame, so that the difference of brightness is generated to cause subjective flicker. Under the scene of dynamic change of frame rates, different frame rates cause different discharge times of TFT devices, so that Data voltages at different frame rates are different, and the brightness of a display blank interval is adjusted by dynamically adjusting a common voltage signal of a color film substrate. When the common voltage signal of the color film substrate is increased, the electricity storage capacity of the liquid crystal capacitor on the color film substrate can be improved, and therefore the electric leakage condition of the TFT device in the display blank interval is relieved. When the common voltage signal of the color film substrate is reduced, the electricity storage capacity of the liquid crystal capacitor on the array substrate can be reduced, and therefore the electric leakage condition of the TFT device in the 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 the details are not repeated here.
Correspondingly, when the current time frame rate is changed compared with the last time frame rate, the step of changing the brightness of the display blank interval according to a preset strategy comprises the following steps:
and when the current time frame rate is changed compared with the last time frame rate, adjusting the common voltage signal of the color film substrate to change the brightness of the display blank interval. It can be understood that, if the change of the current time frame rate is smaller than the previous time frame rate, the amplitude of the modulated color filter substrate common voltage signal is also smaller, and similarly, if the change of the current time frame rate is larger than the previous time frame rate, the amplitude of the modulated color filter substrate common voltage signal is also larger. The concrete expression is as follows: when the current time frame rate is greater than the last time frame rate, the common voltage signal of the color film substrate is adjusted to be low so as to reduce the brightness of a display blank interval; and when the current time frame rate is less than the last time frame rate, the common voltage signal of the color film substrate is increased so as to increase the brightness of the display blank interval.
The mode for adjusting the common voltage signal of the color film substrate can be selected according to specific actual needs, and in one mode: and when the display screen is in a display blank interval, inputting a corresponding preset frequency pulse signal to mediate 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 the brightness of the display screen.
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 individual array substrate common voltage signal and the color film substrate common voltage signal are the same as the principles described in the two examples, and are not described herein again. The example coordinates by simultaneously adjusting the array substrate common voltage signal and the color film substrate common voltage signal to change the brightness of the display blank interval.
Correspondingly, when the current time frame rate is changed compared with the last time frame rate, the step of changing the brightness of the display blank interval according to a preset strategy comprises the following steps:
when the current time frame rate is changed compared with the last time frame rate, the array substrate common voltage signal and the color film substrate common voltage signal are simultaneously adjusted to change the brightness of the display blank interval.
In the process of displaying content on the display screen, the display blank intervals and the effective display intervals sequentially and alternately appear, the brightness of the display blank intervals is adjusted in order to ensure that the whole brightness of the display screen does not flicker, and the effective display intervals need to be recovered when the display blank intervals are finished and enter the effective display intervals. In one example, after the step of changing the brightness of the display blank interval according to a preset policy when the current temporal frame rate is changed from the previous temporal frame rate, so that a variation between the current temporal brightness and the previous temporal brightness is less than or equal to a preset amount, the method further includes the step of:
and when the display screen enters the effective display interval from the display blank interval, restoring the preset brightness corresponding to the effective display interval.
Since the brightness is related to the driving voltage, in one example, the effective display interval is brought into the preset brightness by restoring the preset voltage corresponding to the effective display interval.
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 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, and therefore when the frame rate is changed, the brightness of the display blank interval is changed through changing the brightness of the display blank interval, the brightness of the whole display screen is changed, the variation of the brightness of the display screen before and after 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.
It should be understood that although the various steps in the flowcharts of fig. 1 and 2 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1 and 2 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least some of the sub-steps or stages of 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 apparatus including:
a detecting module 310, configured to detect a current time frame rate of the display screen in real time;
the adjusting module 320 is configured to change the brightness of the display blank interval according to a preset policy when the current time frame rate is changed from the previous time frame rate, so that a 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 at the last time brightness.
For specific limitations of the display screen control device, reference may be made to the above limitations of the display screen control method, which are not described herein again. The modules in the display screen control device can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In order to implement the display screen control method of the present application, for example, a display screen control device 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 screen control device is configured to provide computing and control capabilities. The memory of the display screen control device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. 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 architecture shown in fig. 4 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
Illustratively, there is provided a display screen control device comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the following steps when executing the computer program:
detecting the current time frame rate of the display screen in real time;
when the current time frame rate is changed compared with the last time frame rate, changing the brightness of the display blank interval according to a preset strategy so as to enable the variation between the current time brightness and the last time brightness to be 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 at the last time brightness.
Illustratively, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out 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 last time frame rate, changing the brightness of the display blank interval according to a preset strategy so as to enable the variation between the current time brightness and the last time brightness to be 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 at the last time brightness.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile 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), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. A display screen control method is characterized by comprising 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 last time frame rate, changing the brightness of a display blank interval according to a preset strategy so as to enable the variation between the current time brightness and the last time brightness to be smaller than or equal to a preset amount; the current time brightness is the display brightness of the display screen under the current time frame rate; the last time brightness is the display brightness of the display screen under the last time brightness.
2. The display screen control method according to claim 1, wherein the preset strategy is to modulate a common voltage signal of the array substrate;
when the current time frame rate is changed compared with the last time frame rate, the step of changing the brightness of the display blank interval according to a preset strategy comprises the following steps:
and when the current time frame rate is changed compared with the last time frame rate, adjusting the common voltage signal of the array substrate to change the brightness of the display blank interval.
3. The display screen control method according to claim 2, wherein when the current time frame rate is changed compared to the previous time frame rate, the step of adjusting the array substrate common voltage signal to change the brightness of the display blank interval includes:
when the current time frame rate is greater than the last time frame rate, reducing the common voltage signal of the array substrate to reduce the brightness of the display blank interval;
and when the current time frame rate is less than the last time frame rate, increasing the common voltage signal of the array substrate to increase the brightness of the display blank interval.
4. The display screen control method of claim 2 or 3, wherein the adjusting the common voltage signal of the array substrate comprises:
and when the display screen is in the display blank interval, inputting a corresponding pulse signal to adjust the common voltage signal of the array substrate.
5. The display screen control method according to claim 1, wherein the preset strategy is to mediate a color film substrate common voltage signal;
when the current time frame rate is changed compared with the last time frame rate, the step of changing the brightness of the display blank interval according to a preset strategy comprises the following steps:
and when the current time frame rate is changed compared with the last time frame rate, adjusting the common voltage signal of the color film substrate to change the brightness of the display blank interval.
6. The display screen control method according to claim 5, wherein when the current time frame rate is changed from the previous time frame rate, the adjusting the color film substrate common voltage signal to change the brightness of the display blank interval comprises:
when the current time frame rate is greater than the last time frame rate, reducing the common voltage signal of the color film substrate to reduce the brightness of the display blank interval;
and when the current time frame rate is less than the last time frame rate, increasing the common voltage signal of the color film substrate to increase the brightness of the display blank interval.
7. The display screen control method according to claim 5 or 6, wherein the adjusting the common voltage signal of the color filter substrate includes:
and when the display screen is in the display blank interval, inputting a corresponding preset frequency pulse signal to mediate the common voltage signal of the color film substrate.
8. The display screen control method according to claim 1, wherein the preset strategy is to simultaneously mediate an array substrate common voltage signal and a color film substrate common voltage signal;
when the current time frame rate is changed compared with the last time frame rate, the step of changing the brightness of the display blank interval according to a preset strategy comprises the following steps:
and when the current time frame rate is changed compared with the last time frame rate, adjusting the array substrate common voltage signal and the color film substrate common voltage signal simultaneously to change the brightness of the display blank interval.
9. The display screen control method according to claim 1, 2, 3, 5, 6 or 8, wherein the step of detecting the current time frame rate of the display screen 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.
10. The display screen control method according to claim 1, 2, 3, 5, 6, or 8, wherein when the current time frame rate is changed from the previous time frame rate, the method further comprises, after the step of changing the brightness of the display blank interval according to a preset policy so that the variation between the brightness at the current time and the brightness at the previous time is less than or equal to a preset amount:
and when the display screen enters an effective display interval from the display blank interval, restoring the preset brightness corresponding to the effective display interval.
11. 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 previous time frame rate, 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 under the current time frame rate; the last time brightness is the display brightness of the display screen under the last time brightness.
12. A display screen control apparatus comprising a memory storing a computer program and a processor implementing the steps of the method of any one of claims 1 to 10 when the processor executes the computer program.
13. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method of one of claims 1 to 10.
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