CN108235121B - Frequency multiplication display processing method and device and electronic equipment - Google Patents
Frequency multiplication display processing method and device and electronic equipment Download PDFInfo
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- CN108235121B CN108235121B CN201810041425.5A CN201810041425A CN108235121B CN 108235121 B CN108235121 B CN 108235121B CN 201810041425 A CN201810041425 A CN 201810041425A CN 108235121 B CN108235121 B CN 108235121B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440281—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the temporal resolution, e.g. by frame skipping
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/4508—Management of client data or end-user data
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Abstract
The invention discloses a processing method and a processing device for frequency doubling display, electronic equipment and a computer readable storage medium, wherein the processing method comprises the following steps: acquiring a display screen backlight frequency range and a power panel frequency multiplication factor; according to the playing frame rate of the film source to be played, estimating the driving frequency output after the frequency multiplication of the playing frame rate is carried out according to the frequency multiplication times of the power panel; if the driving frequency is not within the backlight frequency range of the display screen, adjusting the playing frame rate of the film source to be played to obtain the target frame rate of the film source to be played, wherein the target frame rate is within the backlight frequency range of the display screen according to the driving frame rate output after the frequency multiplication of the power panel; and generating a backlight signal with corresponding clock frequency according to the target frame rate, and carrying out frequency multiplication on the backlight signal according to the frequency multiplication times of the power panel to realize frequency multiplication display of the to-be-played film source. The scheme improves the display effect and solves the problem that abnormal display such as water ripples appears on the display screen due to the fact that the backlight signal after frequency multiplication exceeds the specification requirement of the display screen on the clock frequency of the backlight signal in the prior art.
Description
Technical Field
The invention relates to the technical field of smart televisions, in particular to a frequency doubling display processing method and device, electronic equipment and a computer readable storage medium.
Background
With the rapid development of the smart television technology, the functions of the television are increasing, and the functions of chips, power panels and screens forming the television are also increasing and powerful. The screen increases the refreshing frequency of backlight, the screen flashing effect which can be felt by a user when watching is reduced through frequency multiplication, and the original liquid crystal display television which refreshes backlight data of 50 frames per second is changed into the liquid crystal display television which displays backlight data of 400 frames or more per second.
In order to ensure better display effect, the chip outputs the original frame rate of the film source to the screen for display. As shown in fig. 1, after switching the film source, a Frame rate (Frame rate) of the film source is obtained, one path of the Frame rate is transmitted to the screen together with the data signal, the other path is transmitted to the power panel together with the backlight signal, and the frequency of the power panel is multiplied and then transmitted to the screen.
There are clear specification requirements for the clock frequency of the VB1 signal (data signal) input to the panel and the clock frequency of the backlight signal according to the processing capacity of the panel. The chip outputs a VB1 signal to a TCON (logic board) of the screen, but the backlight signal with the same clock frequency output by the chip is output to the power board, the clock frequency contained in the backlight signal after frequency multiplication by the power board cannot be guaranteed to meet the range of the specification requirement of the screen, and the possibility of exceeding the specification of the screen exists when the backlight signal is output to the screen, so that the abnormal display conditions such as water ripples and the like occur on the screen.
Disclosure of Invention
In order to solve the problem that display abnormity occurs because the clock frequency of the backlight signal output to the screen possibly exceeds the screen specification after the backlight signal is subjected to frequency multiplication by the power panel due to the fact that the screen has specification requirements on the clock frequency of the backlight signal in the related technology, the invention provides a frequency multiplication display processing method.
In one aspect, the present invention provides a processing method for frequency doubling display, including:
acquiring a display screen backlight frequency range and a power panel frequency multiplication factor;
according to the playing frame rate of a to-be-played film source, estimating the driving frequency output after frequency multiplication is carried out on the playing frame rate according to the frequency multiplication times of the power panel;
if the driving frequency is not within the display screen backlight frequency range, adjusting the playing frame rate of the to-be-played film source to obtain a target frame rate of the to-be-played film source, wherein the target frame rate is within the display screen backlight frequency range according to the driving frame rate output after the frequency multiplication of the power panel is carried out;
and generating a backlight signal with corresponding clock frequency according to the target frame rate, and carrying out frequency multiplication on the backlight signal according to the frequency multiplication times of the power panel to realize frequency multiplication display of the to-be-played film source.
In another aspect, the present invention provides a processing apparatus for frequency doubling display, including:
the data acquisition module is used for acquiring the backlight frequency range of the display screen and the frequency multiplication times of the power panel;
the frequency estimation module is used for estimating the driving frequency of the frequency multiplication of the playing frame rate according to the frequency multiplication times of the power panel and then outputting the frequency multiplication according to the playing frame rate of the to-be-played film source;
a frame rate obtaining module, configured to adjust a playing frame rate of the to-be-played film source when the driving frequency is not within the backlight frequency range of the display screen, to obtain a target frame rate of the to-be-played film source, where the target frame rate is within the backlight frequency range of the display screen according to a driving frame rate output after frequency multiplication of the power panel;
and the frequency doubling display module is used for generating a backlight signal with corresponding clock frequency according to the target frame rate, and doubling the frequency of the backlight signal according to the frequency doubling multiple of the power panel to realize frequency doubling display of the to-be-played film source.
In addition, the present invention also provides an electronic device including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to execute the processing method of frequency multiplication display.
Further, the present invention also provides a computer-readable storage medium, in which a computer program is stored, and the computer program can be executed by a processor to implement the processing method for frequency doubling display.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
according to the technical scheme provided by the above exemplary embodiment of the invention, whether the playing frame rate of the to-be-played film source exceeds the backlight frequency range of the display screen after frequency multiplication is estimated, and the playing frame rate of the to-be-played film source is adjusted when the playing frame rate exceeds the backlight frequency range of the display screen, so that the obtained target frame rate does not exceed the backlight frequency range of the display screen after frequency multiplication, and therefore, when frequency multiplication display is performed according to the target frame rate, even if frequency multiplication is performed by the power supply board, the driving frequency after frequency multiplication can be ensured not to exceed the specification requirement of the display screen, the display effect is improved, and the problem that abnormal display such as water ripple occurs on the display screen due to the fact that the backlight signal exceeds the specification requirement of the display screen on the backlight signal clock frequency after frequency multiplication by the power supply.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic flow chart of frequency doubling display provided in the prior art;
FIG. 2 is a schematic illustration of an implementation environment in accordance with the present invention;
FIG. 3 is a block diagram illustrating an apparatus in accordance with an exemplary embodiment;
FIG. 4 is a flow diagram illustrating a method of processing a doubling display in accordance with an exemplary embodiment;
FIG. 5 is a flow chart of a processing method for frequency doubling display according to the present invention based on the prior art;
FIG. 6 is a flowchart of step 470 of the corresponding embodiment of FIG. 4;
fig. 7 is a detailed flowchart of a processing method for frequency doubling display according to an exemplary embodiment of the present invention;
FIG. 8 is a block diagram illustrating a processing apparatus for doubling display according to an exemplary embodiment;
fig. 9 is a detailed block diagram of the frequency doubling display module in the corresponding embodiment of fig. 8.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
FIG. 2 is a schematic illustration of an implementation environment in accordance with the present invention. The implementation environment includes: smart display device 110 and server 120.
The association between the smart display device 110 and the server 120 includes a network association and/or a protocol of hardware and a data association therebetween. The intelligent display device 110 may obtain the film source to be played from the server 120 through the network, and perform the frequency doubling processing on the backlight frequency (the frame rate of the same value of the film source) by using the processing method of frequency doubling display provided by the present invention. Of course, the intelligent display device 110 may also perform frequency doubling on the locally stored to-be-played film source by using the frequency doubling display processing method provided by the present invention to the backlight frequency (the frame rate of the same film source value).
Fig. 3 is a block diagram illustrating an apparatus 200 according to an example embodiment. For example, the apparatus 200 may be the smart display device 110 in the implementation environment shown in FIG. 2. The smart display device 110 may be a smart television, a smart refrigerator, or the like.
Referring to fig. 3, the apparatus 200 may include one or more of the following components: a processing component 202, a memory 204, a power component 206, a multimedia component 208, an audio component 210, a sensor component 214, and a communication component 216.
The processing component 202 generally controls overall operation of the device 200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations, among others. The processing components 202 may include one or more processors 218 to execute instructions to perform all or a portion of the steps of the methods described below. Further, the processing component 202 can include one or more modules that facilitate interaction between the processing component 202 and other components. For example, the processing component 202 can include a multimedia module to facilitate interaction between the multimedia component 208 and the processing component 202.
The memory 204 is configured to store various types of data to support operations at the apparatus 200. Examples of such data include instructions for any application or method operating on the apparatus 200. The Memory 204 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically erasable Programmable Read-Only Memory (EEPROM), erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. Also stored in memory 204 are one or more modules configured to be executed by the one or more processors 218 to perform all or a portion of the steps of any of the methods of fig. 4, 5, 6, and 7, described below.
The power supply component 206 provides power to the various components of the device 200. The power components 206 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 200.
The multimedia component 208 includes a screen that provides an output interface between the device 200 and a user, hi some embodiments, the screen may include a liquid Crystal Display (L acquired Crystal Display, L CD for short) and a touch panel.
The audio component 210 is configured to output and/or input audio signals. For example, the audio component 210 includes a Microphone (MIC) configured to receive external audio signals when the device 200 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 204 or transmitted via the communication component 216. In some embodiments, audio component 210 also includes a speaker for outputting audio signals.
The sensor component 214 includes one or more sensors for providing various aspects of status assessment for the device 200. For example, the sensor assembly 214 may detect an open/closed state of the device 200, the relative positioning of the components, the sensor assembly 214 may also detect a change in position of the device 200 or a component of the device 200, and a change in temperature of the device 200. In some embodiments, the sensor assembly 214 may also include a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 216 is configured to facilitate wired or wireless communication between the apparatus 200 and other devices. The device 200 may access a WIreless network based on a communication standard, such as WiFi (WIreless-Fidelity). In an exemplary embodiment, the communication component 216 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 216 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, bluetooth technology, and other technologies.
In an exemplary embodiment, the apparatus 200 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital signal processors, digital signal processing devices, programmable logic devices, field programmable gate arrays, controllers, microcontrollers, microprocessors or other electronic components for performing the methods described below.
Fig. 4 is a flow chart illustrating a method of processing a double frequency display according to an example embodiment. The processing method of the frequency doubling display is applicable to a range and an execution subject, and for example, the method is used for the intelligent display device 110 of the implementation environment shown in fig. 2. As shown in fig. 4, the processing method may be performed by the smart display device 110 and may include the following steps.
In step 410, a display screen backlight frequency range and a power panel frequency multiplication factor are obtained.
Taking the example that the intelligent display device 110 is an intelligent television or an intelligent refrigerator, the intelligent display device 110 may include a chip, a display screen, and a power board, and the intelligent display device 110 obtains specification parameters of the display screen equipped by itself and a multiple of the power board to a backlight signal. The data of the specification parameters of the display screen and the frequency doubling times of the power panel can be stored in the database of the intelligent display device 110. The display panel specification parameters generally include a maximum backlight frequency Fpmax and a minimum backlight frequency Fpmin that the display panel can accept.
The display screen backlight frequency range refers to the range requirement of the display screen on the clock frequency of the input backlight signal within the error allowable range. And assuming that the limited backlight frequency in the display screen specification has a minimum value of Fpmin, a maximum value of Fpmax and an allowable error range of E, the display screen backlight frequency ranges from Fpmin (1+ E) to Fpmax (1-E).
It should be noted that the power board frequency multiplication factor is a factor by which the power board multiplies the clock frequency of the input backlight signal. In order for a smart tv to refresh 50 frames of backlight data per second, the frequency multiplication factor can be 2 times or even more, which becomes 100 or more frames of backlight data per second.
In step 430, according to the playing frame rate of the to-be-played film source, the driving frequency of the to-be-played frame rate output after frequency doubling according to the frequency doubling multiple of the power panel is estimated.
The source of the to-be-played video may be stored in a local database of the smart display device 110 in advance, or may be obtained from the server 120. The play frame rate is the number of frames played within one second of the to-be-played video source, and belongs to the attribute of the to-be-played video source, and the play frame rate may be 50 frames/second. The driving frequency refers to the clock frequency of the backlight signal output by the power panel after frequency multiplication is performed according to the playing frame rate and the frequency multiplication multiple of the power panel.
Assuming that the playback frame rate is 50 frames/second and the clock frequency of the backlight signal input to the power board is 50HZ, the clock frequency output by the power board is doubled after frequency multiplication by the power board, which may be 100HZ, 150HZ or even higher.
In an exemplary embodiment, the step 330 specifically includes:
and multiplying the playing frame rate of the film source to be played by the frequency doubling times of the power panel to obtain the driving frequency output after frequency doubling.
That is, assuming that the playback frame rate is 50 and the frequency multiplication factor of the power board is 2, the driving frame rate output after frequency multiplication by the power board is 100 (i.e., 50 × 2) — assuming that the playback frame rate is 60 and the frequency multiplication factor of the power board is 3, the driving frame rate output after frequency multiplication by the power board is 180 (i.e., 60 × 3) — the driving frequency is the product of the playback frame rate and the frequency multiplication factor.
In step 450, if the driving frequency is not within the backlight frequency range of the display screen, adjusting the playing frame rate of the to-be-played film source to obtain a target frame rate of the to-be-played film source, where the target frame rate is within the backlight frequency range of the display screen according to the driving frame rate output after the frequency doubling multiple of the power panel;
in the prior art, the playing frame rate is used as the clock frequency of the backlight signal and transmitted to the power panel, and then transmitted to the display screen after frequency multiplication by the power panel. Therefore, it cannot be guaranteed that the clock frequency after frequency multiplication meets the specification requirement of the display screen on the clock frequency of the backlight signal.
According to the frequency multiplication times of the power panel, the driving frequency (namely the clock frequency) after frequency multiplication is estimated in advance. When the driving frequency is found to exceed the specification requirement of the display screen on the clock frequency of the backlight signal (namely, the backlight frequency range of the display screen), the playing frame rate of the film source to be played is adjusted, so as to obtain a new playing frame rate (namely, the target frame rate). And the target frame rate is subjected to frequency multiplication according to the frequency multiplication times of the power panel to obtain a driving frame rate which can be within the backlight frequency range of the display screen.
As shown in fig. 5, based on the prior art, the frequency doubling display method provided by the present invention further includes adjusting the playing frame rate of the film source through the adjusting unit to obtain an adjusted target frame rate, and then transmitting the target frame rate to the display screen as a clock signal for data display and transmitting the target frame rate to the power panel as a clock signal for backlight adjustment, and transmitting the target frame rate to the display screen after frequency doubling by the power panel.
In an exemplary embodiment, step 450 specifically includes: and if the driving frequency is not in the backlight frequency range of the display screen, calculating the target frame rate of the film source to be played according to the backlight frequency range of the display screen and the frequency doubling multiple of the power panel.
Assuming that the backlight frequency range of the display screen is a-b and the frequency multiplication multiple of the power panel is N, the target frame rate can be a value between a/N and b/N. Therefore, the target frame rate is ensured to be within the backlight frequency range of the display screen according to the driving frequency output after the frequency multiplication of the power panel is N times multiplied.
In step 470, a backlight signal with a corresponding clock frequency is generated according to the target frame rate, and the backlight signal is frequency-doubled according to the frequency doubling multiple of the power panel, so as to realize frequency-doubled display of the to-be-played film source.
After the target frame rate is obtained in step 450, a backlight signal including a clock signal having the same clock frequency as the target frame rate may be generated according to the target frame rate. The clock frequency refers to the number of cycles per second. For example, when the target frame rate is 50 frames per second, the clock frequency is 50 cycles per second.
The backlight signal is used for backlight adjustment, that is, backlight brightness adjustment. The power panel of the intelligent display device 110 multiplies the frequency of the backlight signal containing the clock signal and inputs the multiplied frequency signal to the display screen of the intelligent display device 110, so as to realize frequency multiplication display.
Specifically, as shown in fig. 6, step 470 specifically includes:
in step 471, generating a backlight signal and a data signal of a corresponding clock frequency according to the target frame rate;
after the target frame rate is obtained, the chip of the smart display device 110 generates a data signal including a clock signal according to the target frame rate, where the clock frequency of the clock signal is the same as the value of the target frame rate. The data signals are used to control the RGB values of the pixels of the display screen and are therefore also referred to as RGB data signals. Meanwhile, the chip of the smart display device 110 generates a backlight signal including the same clock signal, and the backlight signal is used to adjust the backlight brightness of the display screen.
In step 472, the data signal is input to a display screen configured by the power supply board, and the backlight signal is frequency-multiplied according to the frequency multiplication factor of the power supply board and then input to the display screen, so that frequency-multiplied display of the to-be-played film source is realized.
Specifically, the chip of the intelligent display device 110 inputs the backlight signal including the clock signal into the power board of the intelligent display device 110, and the power board multiplies the backlight signal including the hour signal according to the configured frequency multiplication factor and inputs the multiplied backlight signal into the display screen of the intelligent display device 110. Because the driving frequency of the target frame rate after frequency multiplication is within the backlight frequency range of the display screen, the backlight signal of the corresponding clock frequency generated according to the target frame rate does not exceed the specification requirement of the display screen after frequency multiplication of the power panel, and the problem of abnormal display does not occur. Meanwhile, the chip of the smart display device 110 directly inputs a data signal including a corresponding clock signal to the display screen of the smart display device 110. Therefore, the problem of abnormal display caused by frequency multiplication of the power panel is solved, and the proportional relation between the clock frequency of the data signal and the clock frequency of the backlight signal is ensured.
In summary, according to the technical solution provided by the foregoing exemplary embodiment of the present invention, it is estimated whether the playing frame rate of the to-be-played slice source exceeds the backlight frequency range of the display screen after being frequency-multiplied, and when the playing frame rate exceeds the backlight frequency range of the display screen, the playing frame rate of the to-be-played slice source is adjusted, so that the obtained target frame rate does not exceed the backlight frequency range of the display screen after being frequency-multiplied, and thus when performing frequency-multiplied display according to the target frame rate, it can be ensured that the driving frequency after frequency multiplication does not exceed the specification requirement of the display screen even through frequency multiplication of the power board, and the problem that abnormal display such as water ripple occurs on the display screen when the backlight signal is output to the display screen after being frequency-multiplied by the power board in the prior art is solved, and the display effect.
In an exemplary embodiment, the step 450 may include the steps of:
if the driving frequency is smaller than the lower limit value in the backlight frequency range of the display screen, increasing the playing frame rate of the film source to be played, and obtaining the target frame rate of the film source to be played;
the target frame rate is calculated by adopting the following formula:
F’＝(Fpmin+(Fpmax-Fpmin)*p)/N
f' is a target frame rate, Fpmin is a minimum backlight frequency, Fpmin (1+ E) is a lower limit value in a backlight frequency range of the display screen, E is an error coefficient, Fpmax is a maximum backlight frequency, Fpmax (1-E) is an upper limit value in the backlight frequency range of the display screen, p is an adjustment proportion, and N is a frequency multiplication multiple of the power panel.
It should be explained that various configuration parameters may be stored in the preset database of the intelligent display device 110 in advance, including backlight frequency (a minimum backlight frequency value Fpmin, a maximum backlight frequency value Fpmax, and an error coefficient E, E is a fixed value for each display screen, and different display screens are slightly different) in the specification requirements of the display screens, a frequency doubling multiple N of the power supply board to the backlight signal (N of each power supply board is a fixed value), an adjustment step S (the larger S is, the more obvious a single adjustment backlight change is, the too small S causes a too long adjustment process, and according to the determination of the display adjustment effect, screens of different manufacturers may be the same by default), the adjustment times M (determined by calculation when a developer clicks on the screen), and an optimal adjustment ratio P when the specification of the display screens is exceeded (the adjustment range P cannot be smaller than the error range E of the screens).
Fig. 7 is a detailed flowchart of a processing method for frequency doubling display according to an exemplary embodiment of the present invention. As shown in fig. 7, in step 701, the smart display device 110 obtains a preset value from a preset database. The preset values include various configuration parameters stored in a preset database, including: fpmax value, Fpmin value, N value, S value, E value, P value.
In step 702, the smart display device 110 calculates the driving frequency multiplied by the frequency of the power board according to the obtained playing frame rate F of the current to-be-played film source.
In step 703, the smart display device 110 compares the driving frequency (F × N) with the display screen backlight frequency range Fpmin (1+ E) -Fpmax (1-E).
In step 704, if (F × N) < Fpmin (1+ E), that is, the driving frequency is less than the lower limit of the display screen backlight frequency range, the frame rate of the source to be played is increased, and the new frame rate F' is (Fpmin + (Fpmax-Fpmin) × P)/N.
In step 705, the chip in the smart display device 110 generates a data signal (VB1) with a corresponding clock frequency at the new frame rate F' (i.e. the target frame rate) and transmits the data signal to the display screen, and generates a backlight signal with a corresponding clock frequency and transmits the backlight signal to the power board, and the power board performs frequency doubling and then transmits the backlight signal to the display screen, thereby finally realizing normal display of the to-be-played film source.
In another exemplary embodiment, the step 450 may include the steps of:
if the driving frequency is larger than the upper limit value in the backlight frequency range of the display screen, reducing the playing frame rate of the film source to be played, and obtaining the target frame rate of the film source to be played;
the target frame rate is calculated by adopting the following formula:
F’＝(Fpmax-(Fpmax-Fpmin)*p)/N
f' is a target frame rate, Fpmin is a minimum backlight frequency, Fpmin (1+ E) is a lower limit value in a backlight frequency range of the display screen, E is an error coefficient, Fpmax is a maximum backlight frequency, Fpmax (1-E) is an upper limit value in the backlight frequency range of the display screen, p is an adjustment proportion, and N is a frequency multiplication multiple of the power panel.
Specifically, as shown in fig. 7, after the smart display device 110 compares the driving frequency (F × N) with the display screen backlight frequency ranges Fpmin (1+ E) -Fpmax (1-E) in step 703, there may be the following steps.
In step 704 ', if (F × N) is greater than Fpmax (1-E), that is, the driving frequency is greater than the upper limit of the display screen backlight frequency range, the frame rate of the source to be played is decreased, and the new frame rate F' is (Fpmax-Fpmin) × p)/N.
In step 705, the chip in the smart display device 110 generates a data signal (VB1) with a corresponding clock frequency at the new frame rate F' (i.e. the target frame rate) and transmits the data signal to the display screen, and generates a backlight signal with a corresponding clock frequency and transmits the backlight signal to the power board, and the power board performs frequency doubling and then transmits the backlight signal to the display screen, thereby finally realizing normal display of the to-be-played film source.
It should be noted that, if it is found in step 703 that the driving frequency (F × N) is within the display screen backlight frequency range Fpmin (1+ E) -Fpmax (1-E), that is, Fpmin (1+ E) < ═ F × N < ═ Fpmax (1-E), it indicates that the original frame rate F does not exceed the specification requirement of the display screen after frequency doubling, the frame rate of the film source to be played may not change, and the new frame rate F' ═ F.
The following is an embodiment of an apparatus of the present invention, which can be used to execute an embodiment of a processing method for frequency doubling display executed by the above-mentioned smart display device 110 of the present invention. For details not disclosed in the embodiments of the apparatus of the present invention, refer to the embodiments of the processing method for frequency doubling display of the present invention.
Fig. 8 is a block diagram illustrating a processing apparatus for frequency doubling display according to an exemplary embodiment, which may be used in the intelligent display device 110 in the implementation environment shown in fig. 2 to perform all or part of the steps of the processing method for frequency doubling display shown in any one of fig. 4, 5, 6, and 7. As shown in fig. 8, the processing means includes but is not limited to: a data obtaining module 810, a frequency estimating module 830, a frame rate obtaining module 850, and a frequency doubling display module 870.
The data acquisition module 810 is configured to acquire a display screen backlight frequency range and a power panel frequency multiplication factor;
the frequency estimation module 830 is configured to estimate, according to a play frame rate of a to-be-played film source, a driving frequency output after frequency multiplication is performed on the play frame rate according to the frequency multiplication multiple of the power panel;
a frame rate obtaining module 850, configured to adjust a playing frame rate of the to-be-played film source when the driving frequency is not within the backlight frequency range of the display screen, to obtain a target frame rate of the to-be-played film source, where the target frame rate is within the backlight frequency range of the display screen according to a driving frame rate output after frequency doubling of the power panel;
and the frequency doubling display module 870 is configured to generate a backlight signal with a corresponding clock frequency according to the target frame rate, and perform frequency doubling on the backlight signal according to the frequency doubling multiple of the power panel, so as to implement frequency doubling display of a to-be-played film source.
The implementation process of the functions and actions of each module in the device is specifically described in detail in the implementation process of the corresponding step in the processing method for frequency doubling display, and is not described herein again.
The data acquisition module 810 can be, for example, one of the physical structure communication components 216 of fig. 3.
The frequency estimation module 830, the frame rate obtaining module 850, and the frequency doubling display module 870 may also be functional modules for executing corresponding steps in the processing method of frequency doubling display. It is understood that these modules may be implemented in hardware, software, or a combination of both. When implemented in hardware, these modules may be implemented as one or more hardware modules, such as one or more application specific integrated circuits. When implemented in software, the modules may be implemented as one or more computer programs executing on one or more processors, such as the programs stored in memory 204 and executed by processor 218 of FIG. 3.
In an exemplary embodiment, the frequency estimation module 830 includes, but is not limited to:
and the frequency calculation unit is used for multiplying the playing frame rate of the to-be-played film source by the frequency doubling times of the power panel to obtain the driving frequency output after frequency doubling.
In an exemplary embodiment, the frame rate obtaining module 850 includes, but is not limited to:
and the target frame rate calculation unit is used for calculating the target frame rate of the to-be-played film source according to the display screen backlight frequency range and the power panel frequency doubling multiple when the driving frequency is not in the display screen backlight frequency range.
In an exemplary embodiment, the frame rate obtaining module 850 includes, but is not limited to:
the frame rate increasing unit is used for increasing the playing frame rate of the film source to be played when the driving frequency is smaller than the lower limit value in the backlight frequency range of the display screen, and obtaining the target frame rate of the film source to be played;
the target frame rate is calculated by adopting the following formula:
F’＝(Fpmin+(Fpmax-Fpmin)*p)/N
f' is a target frame rate, Fpmin is a minimum backlight frequency, Fpmin (1+ E) is a lower limit value in a backlight frequency range of the display screen, E is an error coefficient, Fpmax is a maximum backlight frequency, Fpmax (1-E) is an upper limit value in the backlight frequency range of the display screen, p is an adjustment proportion, and N is a frequency multiplication multiple of the power panel.
In an exemplary embodiment, the frame rate obtaining module 850 includes, but is not limited to:
the frame rate reducing unit is used for reducing the playing frame rate of the film source to be played when the driving frequency is larger than the upper limit value in the backlight frequency range of the display screen, and obtaining the target frame rate of the film source to be played;
the target frame rate is calculated by adopting the following formula:
F’＝(Fpmax-(Fpmax-Fpmin)*p)/N
f' is a target frame rate, Fpmin is a minimum backlight frequency, Fpmin (1+ E) is a lower limit value in a backlight frequency range of the display screen, E is an error coefficient, Fpmax is a maximum backlight frequency, Fpmax (1-E) is an upper limit value in the backlight frequency range of the display screen, p is an adjustment proportion, and N is a frequency multiplication multiple of the power panel.
In an exemplary embodiment, as shown in fig. 9, the doubling display module 870 includes, but is not limited to:
a signal generating unit 871, configured to generate a backlight signal and a data signal of a corresponding clock frequency according to the target frame rate;
and the signal transmission unit 872 is configured to input the data signal into a display screen configured by the power supply board, perform frequency multiplication on the backlight signal according to the frequency multiplication multiple of the power supply board, and then input the backlight signal into the display screen, so as to realize frequency multiplication display of the to-be-played film source.
Optionally, the present invention further provides an electronic device, which can be used in the intelligent display device 110 in the implementation environment shown in fig. 2 to execute all or part of the steps of the processing method for frequency doubling display shown in any one of fig. 4, fig. 5, fig. 6, and fig. 7. The electronic device includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to execute the processing method of frequency doubling display according to the above exemplary embodiment.
The specific manner in which the processor of the electronic device performs operations in this embodiment has been described in detail in the embodiment of the processing method related to the frequency doubling display, and will not be elaborated here.
In an exemplary embodiment, a storage medium is also provided that is a computer-readable storage medium, such as may be transitory and non-transitory computer-readable storage media, including instructions. The storage medium stores a computer program executable by the processor 218 of the apparatus 200 to perform the above-described processing method of frequency doubling display.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (7)
1. A processing method for frequency doubling display is characterized by comprising the following steps:
acquiring a display screen backlight frequency range and a power panel frequency multiplication factor;
multiplying the playing frame rate of the film source to be played by the frequency multiplication times of the power panel to obtain the driving frequency output after frequency multiplication;
if the driving frequency is not within the display screen backlight frequency range, calculating a target frame rate of the to-be-played film source according to the display screen backlight frequency range and the power panel frequency multiplication factor, wherein the target frame rate is within the display screen backlight frequency range according to the driving frame rate output after the frequency multiplication of the power panel frequency multiplication;
and generating a backlight signal with corresponding clock frequency according to the target frame rate, and carrying out frequency multiplication on the backlight signal according to the frequency multiplication times of the power panel to realize frequency multiplication display of the to-be-played film source.
2. The method according to claim 1, wherein if the driving frequency is not within the display screen backlight frequency range, calculating a target frame rate of the to-be-played film source according to the display screen backlight frequency range and the power board frequency doubling multiple comprises:
if the driving frequency is smaller than the lower limit value in the backlight frequency range of the display screen, increasing the playing frame rate of the film source to be played, and obtaining the target frame rate of the film source to be played;
the target frame rate is calculated by adopting the following formula:
F’＝(Fpmin+(Fpmax-Fpmin)*p)/N
f' is a target frame rate, Fpmin is a minimum backlight frequency, Fpmin (1+ E) is a lower limit value in a backlight frequency range of the display screen, E is an error coefficient, Fpmax is a maximum backlight frequency, Fpmax (1-E) is an upper limit value in the backlight frequency range of the display screen, p is an adjustment proportion, and N is a frequency multiplication multiple of the power panel.
3. The method according to claim 1, wherein if the driving frequency is not within the display screen backlight frequency range, calculating a target frame rate of the to-be-played film source according to the display screen backlight frequency range and the power board frequency doubling multiple comprises:
if the driving frequency is larger than the upper limit value in the backlight frequency range of the display screen, reducing the playing frame rate of the film source to be played, and obtaining the target frame rate of the film source to be played;
the target frame rate is calculated by adopting the following formula:
F’＝(Fpmax-(Fpmax-Fpmin)*p)/N
f' is a target frame rate, Fpmin is a minimum backlight frequency, Fpmin (1+ E) is a lower limit value in a backlight frequency range of the display screen, E is an error coefficient, Fpmax is a maximum backlight frequency, Fpmax (1-E) is an upper limit value in the backlight frequency range of the display screen, p is an adjustment proportion, and N is a frequency multiplication multiple of the power panel.
4. The method according to claim 1, wherein the generating a backlight signal of a corresponding clock frequency according to the target frame rate, and performing frequency multiplication on the backlight signal according to the frequency multiplication multiple of the power supply board to realize frequency multiplication display of the to-be-played slice source comprises:
generating a backlight signal and a data signal of corresponding clock frequency according to the target frame rate;
and inputting the data signal into a display screen configured by the power panel, and inputting the backlight signal into the display screen after frequency multiplication is carried out on the backlight signal according to the frequency multiplication multiple of the power panel, so as to realize frequency multiplication display of the to-be-played film source.
5. A processing apparatus for frequency doubling display, comprising:
the data acquisition module is used for acquiring the backlight frequency range of the display screen and the frequency multiplication times of the power panel;
the frequency estimation module is used for obtaining the driving frequency output after frequency multiplication through multiplying the playing frame rate of the to-be-played film source by the frequency multiplication times of the power panel;
a frame rate obtaining module, configured to calculate a target frame rate of the to-be-played slice source according to the display screen backlight frequency range and the power panel frequency multiplication factor when the driving frequency is not within the display screen backlight frequency range, where the target frame rate is within the display screen backlight frequency range according to a driving frame rate output after the power panel frequency multiplication factor is multiplied;
and the frequency doubling display module is used for generating a backlight signal with corresponding clock frequency according to the target frame rate, and doubling the frequency of the backlight signal according to the frequency doubling multiple of the power panel to realize frequency doubling display of the to-be-played film source.
6. An electronic device, characterized in that the electronic device comprises:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the processing method of doubling display according to any of claims 1 to 4.
7. A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and the computer program is executable by a processor to perform the processing method for frequency doubling display according to any one of claims 1 to 4.
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| CN111836104B (en) * | 2020-07-09 | 2022-01-28 | 海信视像科技股份有限公司 | Display apparatus and display method |
| CN111899680B (en) * | 2020-07-14 | 2023-04-18 | 青岛海信医疗设备股份有限公司 | Display device and setting method thereof |
| CN114078419B (en) * | 2020-08-11 | 2023-01-10 | 西安钛铂锶电子科技有限公司 | Display control method and display control device |
| CN114242003B (en) * | 2021-12-14 | 2023-06-02 | Tcl华星光电技术有限公司 | Display panel and driving method thereof |
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