CN116778841A

CN116778841A - Screen display method, device and storage medium

Info

Publication number: CN116778841A
Application number: CN202210225507.1A
Authority: CN
Inventors: 戴富华
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2023-09-19

Abstract

The disclosure relates to a screen display method, a device and a storage medium, belongs to the technical field of display, and can improve the problem of screen flashing. A screen display method, comprising: acquiring scanning frequency switching trigger information; determining that the scanning frequency of the screen needs to be switched to a first scanning frequency based on the scanning frequency switching trigger information; determining the total number of virtual scanning lines required at the first scanning frequency; and alternately scanning the virtual scan line and a real pixel line of the screen.

Description

Screen display method, device and storage medium

Technical Field

The disclosure relates to the technical field of display, and in particular relates to a screen display method, a device and a storage medium.

Background

In the related art, when a screen is switched from a high scanning frequency to a low scanning frequency, a screen flashing problem often occurs, and user experience is affected.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a screen display method, apparatus, and storage medium.

According to a first aspect of an embodiment of the present disclosure, there is provided a screen display method including: acquiring scanning frequency switching trigger information; determining that the scanning frequency of the screen needs to be switched to a first scanning frequency based on the scanning frequency switching trigger information; determining the total number of virtual scanning lines required at the first scanning frequency; and alternately scanning the virtual scan line and a real pixel line of the screen.

Optionally, the acquiring the scan frequency switching trigger information includes: acquiring a use scene of the screen; and acquiring the scanning frequency switching trigger information based on the use scene.

Optionally, the determining, based on the scan frequency switching trigger information, that the scan frequency of the screen needs to be switched to the first scan frequency includes: and determining that the scanning frequency of the screen needs to be switched to the first scanning frequency based on the usage scene to be switched carried in the scanning frequency switching trigger information by utilizing a preset corresponding relation between the usage scene of the screen and the scanning frequency of the screen.

Optionally, the determining the total number of virtual scan lines required at the first scan frequency includes: based on the write time length requirement of each line of data and the first scanning frequency, the total number of virtual scanning lines required at the first scanning frequency is determined.

Optionally, the determining the total number of virtual scan lines required at the first scan frequency based on the write time length requirement of each line of data and the first scan frequency includes: based on the requirement that the writing time of each line of data of the screen is equal under any scanning frequency, the total number of virtual scanning lines required under the first scanning frequency is determined by utilizing the ratio of the highest scanning frequency of the screen to the first scanning frequency.

Optionally, the alternately scanning the virtual scan line and the real pixel line of the screen includes: the virtual scan lines and the real pixel lines of the screen are alternately scanned in proportion.

Optionally, the alternately scanning the virtual scan line and the real pixel line of the screen in proportion includes: determining the number of lines of the virtual scanning lines corresponding to each real pixel line based on the writing time length requirement of each line of data; and alternately scanning the virtual scanning lines and the real pixel lines according to the proportion between the real pixel lines and the corresponding virtual scanning line lines.

Optionally, the determining the number of rows of the virtual scan line corresponding to each real pixel row based on the writing time length requirement of each row of data includes: based on the requirement that the writing time of each line of data of the screen is equal under any scanning frequency, determining the line number of the virtual scanning line corresponding to each real pixel line by utilizing the ratio of the highest scanning frequency of the screen to the first scanning frequency.

According to a second aspect of embodiments of the present disclosure, there is provided a screen display device including: the acquisition module is used for acquiring the scanning frequency switching trigger information; the first determining module is used for determining that the scanning frequency of the screen needs to be switched to a first scanning frequency based on the scanning frequency switching trigger information; a second determining module, configured to determine a total number of virtual scan lines required at the first scan frequency; and a scanning module for alternately scanning the virtual scan line and the real pixel line of the screen.

According to a third aspect of the embodiments of the present disclosure, there is provided a screen display device including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the steps of the method according to the first aspect of the present disclosure.

According to a fourth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions, characterized in that the program instructions when executed by a processor implement the steps of the method according to the first aspect of embodiments of the present disclosure.

By adopting the technical scheme, as the scanning frequency switching trigger information can be acquired, the scanning frequency of the screen is determined to be switched to the first scanning frequency based on the scanning frequency switching trigger information, the total number of virtual scanning lines required under the first scanning frequency is determined, then the virtual scanning lines and the real pixel lines of the screen are alternately scanned, the Blank interval is greatly reduced through the alternate scanning of the virtual scanning lines and the real pixel lines, the problem of screen flashing during the switching of different scanning frequencies is solved, and the user experience is improved.

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 disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of a Long V display technique according to the prior art.

Fig. 2 is a flowchart illustrating a screen display method according to an exemplary embodiment.

Fig. 3 is a schematic diagram illustrating alternate scanning of virtual scan lines and real pixel lines to scale with a scan frequency switching from 120Hz to 30Hz, according to an example embodiment.

Fig. 4 is a schematic diagram illustrating alternate scanning of virtual scan lines and real pixel lines to scale with the scan frequency switched from 120Hz to 60Hz according to an exemplary embodiment.

Fig. 5 is a schematic diagram illustrating alternate scanning of virtual scan lines and real pixel lines to scale with the scan frequency switched from 120Hz to 90Hz according to an exemplary embodiment.

Fig. 6 is a schematic diagram of an LTPO circuit architecture, according to an example embodiment.

Fig. 7 is a control timing diagram of an LTPO circuit according to one example embodiment.

Fig. 8 is a schematic diagram illustrating alternate scanning of virtual scan lines and real pixel lines to scale with a scan frequency switching from 120Hz to 60Hz for LTPO technology, according to an example embodiment.

Fig. 9 is a schematic block diagram of a screen display device according to an exemplary embodiment.

Fig. 10 is a block diagram of a screen display device according to an exemplary embodiment.

Fig. 11 is a block diagram of a screen display device according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

In the related art, long H technology and Long V technology are generally used to realize a wide frequency domain display, for example, a scanning frequency of 1Hz to 120Hz. The Long H technique is that the number of scanning lines is not changed (i.e. virtual scanning lines are not added), but the writing time of each line of data is inconsistent under different scanning frequencies. The Long V technique is to add virtual scan lines (i.e. display non-display (Blank) intervals) when switching from high frequency scan frequency to low frequency scan frequency, so as to ensure that the writing time of each line of data is consistent at the high and low frequency scan frequencies, wherein when line scanning is performed, all added virtual scan lines are scanned first, and then all real pixel lines are scanned, as shown in fig. 1. In fig. 1, EM signals (e.g., em_0 to em_n) are signals for controlling a lighting phase of a dot screen timing in which a lighting unit (e.g., OLED, LED, etc.) in the dot screen is lighted; the Scan1 signal is a signal for initializing the anode of the light emitting unit and the gate of the driving transistor; scan2 is a signal for controlling writing of a data signal.

The Long H technology and the Long V technology in the prior art have the problem of screen flashing, and influence the user experience.

Fig. 2 is a flowchart illustrating a screen display method according to an exemplary embodiment. The screen display method can be applied to any scene needing wide-frequency-domain (for example, 1Hz-120 Hz) display, for example, low-temperature polycrystalline oxide (Low Temperature Polycrystalline Oxide, LTPO) display or other types of displays with wide-frequency-domain display. As shown in fig. 2, the screen display method includes the following steps S11 to S14.

In step S11, scanning frequency switching trigger information is acquired.

In some embodiments, this step may be accomplished by: first, a usage scenario of a screen is acquired, and then scan frequency switching trigger information is acquired based on the usage scenario.

The usage scenario refers to a scenario in which the terminal device is currently being applied, such as a game scenario (i.e., a scenario in which a user is playing a game through the terminal device), a music play scenario (i.e., a scenario in which the terminal device is playing music), a standby scenario (i.e., a scenario in which the terminal device is currently in a standby state), and the like.

If the usage scene of the terminal device is changed, the change of the usage scene becomes trigger information for switching the screen scanning frequency. For example, if the screen is previously in a game scene and then switches to a music playing scene, such a use scene switch would trigger a switch in the screen scanning frequency.

In some embodiments, this step may also be implemented by acquiring the scan frequency switch trigger information from a scan frequency switch instruction input by a user. For example, the user may instruct to switch the sweep frequency of the screen from the first sweep frequency to the second sweep frequency in the sweep frequency switch instruction.

In step S12, it is determined that the scanning frequency of the screen needs to be switched to the first scanning frequency based on the scanning frequency switching trigger information.

In some embodiments, in the terminal device, a preset correspondence relationship between the usage scenario of the screen and the scanning frequency of the screen may be preset, for example, the first scanning frequency is used in the first usage scenario, the second scanning frequency is used in the second usage scenario, the third scanning frequency is used in the third usage scenario, and so on. In this way, after the information about the usage scenario to be switched to, which is carried in the scanning frequency switching trigger information, is acquired, the scanning frequency of the screen may be determined to be switched to the scanning frequency corresponding to the usage scenario to which the screen is to be switched, based on the preset correspondence between the usage scenario and the scanning frequency.

For example, assuming that the terminal device displaying in the wide frequency range is in the game scene, the screen needs to use a high-frequency scanning frequency (for example, 120 Hz) to maintain the image texture and reduce the smear phenomenon, and then if the terminal device enters the use scene of playing audio, the scanning frequency of the screen (for example, using a 60Hz scanning frequency) can be reduced to reduce the power consumption, and the operation of starting the audio playing by the terminal device becomes the trigger information of the screen scanning frequency switching.

In some embodiments, if the scan frequency switching trigger information is obtained from a scan frequency switching instruction input by a user, it may be determined to which scan frequency of the screen needs to be switched according to the scan frequency switching instruction. For example, if the user instructs to switch the scanning frequency of the screen from the first scanning frequency to the second scanning frequency in the scanning frequency switching instruction, it may be determined from the scanning frequency switching trigger information that the scanning frequency of the screen needs to be switched to the second scanning frequency.

In step S13, the total number of virtual scan lines required at the first scan frequency is determined.

The virtual Scan line Scan refers to displaying a Blank section, that is, at this time, scan1 and Scan2 signals are normally operated, and the EM signal makes the screen in a light emitting stage, but the light emitting unit does not emit light. That is, the virtual scan line is a scan line without real display content.

In some embodiments, the total number of virtual scan lines required at the first scan frequency may be determined based on the write time length requirement for each line of data and the first scan frequency.

For example, if the writing time length requirement of each line of data is that the writing time length of each line of data of the screen is equal at any scanning frequency, the ratio of the highest scanning frequency of the screen to the first scanning frequency can be used to determine the total number of virtual scanning lines required at the first scanning frequency. That is, in the present disclosure, it is first ensured that the writing time period of each line of data is uniform at each different screen scanning frequency, and then on this basis, the total number of virtual scanning lines required is determined based on the scanning frequency to be switched to.

Taking the actual number of rows of pixels of the screen as n rows, the highest scanning frequency as 120Hz as an example. Assuming that the scanning frequency of the screen needs to be switched from 120Hz to 60Hz, in order to ensure that the writing time of each line of data is consistent with that of 120Hz, virtual scanning lines need to be added, and the total number of added virtual scanning lines is n lines, because 120Hz/60 hz=2, this means that the total scanning lines need to reach 2n lines in the case of 60Hz, so as to meet the requirement of consistent writing time of each line of data, and the actual pixel line of the screen is n lines, that is, n virtual scanning lines are added again, so that the total scanning lines can reach 2n lines. Assuming that the scanning frequency needs to be switched to 30Hz, in order to ensure that the writing duration of each line of data is consistent with that in the case of 120Hz, the total number of virtual scanning lines which need to be increased is 3n lines, that is, the lower the scanning frequency of the screen is, the shorter the time taken for scanning the real pixel lines is, and the more virtual scanning lines need to be increased. Assuming that the scanning frequency of the screen needs to be switched from 30Hz to 60Hz, since the total virtual scanning line number at the scanning frequency of 30Hz is 3n lines and the total virtual scanning line number at the scanning frequency of 60Hz is n lines, when the scanning frequency is switched from 30Hz to 60Hz, the total line number of the virtual scanning lines needs to be reduced so as to meet the requirement of consistent writing length of data of each line.

In step S14, the virtual scan line and the real pixel line of the screen are alternately scanned.

The real pixel row is a scan row having real display contents, that is, in the real scan row, display pixels (e.g., light emitting units) are turned on and off according to the real display contents.

Alternating the virtual scan lines with the real pixel lines of the screen means that after a number of virtual scan lines are scanned, a number of real pixel lines are then scanned, rather than scanning all of the virtual scan lines, and then starting to scan the real pixel lines. For example, after N virtual scan lines are scanned, M real pixel lines are scanned, then I virtual scan lines are scanned, then J real pixel lines are scanned, and so on until all virtual scan lines and all real pixel lines are scanned. Wherein N, M, I, J may be equal or unequal.

In some embodiments, the virtual scan lines and the real pixel lines of the screen may be scanned alternately in proportion. Wherein this can be achieved in the following manner. That is, first, the number of virtual scan lines corresponding to each real pixel line is determined based on the writing time length requirement of each line of data, for example, the number of virtual scan lines corresponding to each real pixel line may be determined based on the requirement that the writing time length of each line of data of the screen is equal at any scanning frequency, by using the ratio of the highest scanning frequency to the first scanning frequency of the screen. Taking n rows of actual pixel rows of a screen and 120Hz of the highest scanning frequency as an example, assuming that the scanning frequency of the screen needs to be switched from 120Hz to 60Hz, under the scanning frequency of 60Hz, 1 row of actual pixel rows needs to correspond to 1 row of actual pixel rows, so that the requirement of consistent writing length of data of each row can be met. Then, after determining the number of lines of the virtual scan line corresponding to each real pixel line, the virtual scan line and the real pixel line may be alternately scanned according to the ratio between each real pixel line and the number of lines of the virtual scan line corresponding to each real pixel line.

In the following, an example will be given in which the total number of actual pixel lines is n lines, and the highest scanning frequency of the screen is 120Hz, to illustrate how to perform the proportional alternating scanning of the virtual scanning lines and the actual pixel lines in the case where the scanning frequency of the screen is switched from 120Hz to 30Hz, the scanning frequency of the screen is switched from 120Hz to 60Hz, and the scanning frequency of the screen is switched from 120Hz to 90 Hz.

When the screen scanning frequency is switched from 120Hz to 30Hz, the method can be determined based on the requirement that the writing time length of each line of data needs to be consistent under different scanning frequencies, and when the scanning frequency is 30Hz, 3 lines of virtual scanning lines are required to be corresponding to one line of real pixel lines, so that the writing time length of each line of data under 120Hz can be ensured to be consistent with the writing time length of each line of data under 30Hz, and therefore, when the line scanning is performed, the method can be performed according to the following time sequence: first, the 1 st-3 rd line virtual scan line is scanned, then the first line real pixel line is scanned, then the 4 th-6 th line virtual scan line is scanned, then the second line real pixel line is scanned, then the 7 th-9 th line virtual scan line is scanned, then the third line real pixel line is scanned, and so on, the proportional alternate scanning of the virtual scan line and the real pixel line is completed, as shown in fig. 3.

When the screen scanning frequency is switched from 120Hz to 60Hz, the method can be determined based on the requirement that the writing time length of each line of data needs to be consistent under different scanning frequencies, and when the scanning frequency is 60Hz, 1 line of virtual scanning line is required to be corresponding to one line of real pixel line, so that the writing time length of each line of data under 120Hz can be ensured to be consistent with the writing time length of each line of data under 60Hz, and therefore, when the line scanning is performed, the method can be performed according to the following time sequence: first, the 1 st line virtual scan line is scanned, then the 1 st line real pixel line is scanned, then the 2 nd line virtual scan line is scanned, then the 2 nd line real pixel line is scanned, then the 3 rd line virtual scan line is scanned, then the 3 rd line real pixel line is scanned, and so on, the proportional alternate scanning of the virtual scan line and the real pixel line is completed, as shown in fig. 4.

When the screen scanning frequency is switched from 120Hz to 90Hz, the method can be determined based on the requirement that the writing time length of each line of data needs to be consistent under different scanning frequencies, and when the scanning frequency is 90Hz, the writing time length of each line of data under 120Hz can be ensured to be consistent with the writing time length of each line of data under 90Hz only by enabling 3 lines of real pixel lines to correspond to 1 line of virtual scanning lines, so that when the line scanning is carried out, the method can be carried out according to the following time sequence: first, the 1 st line virtual scan line is scanned, then the 1 st to 3 rd line real pixel lines are scanned, then the 2 nd line virtual scan line is scanned, then the 4 th to 6 th line real pixel lines are scanned, then the 3 rd line virtual scan line is scanned, then the 7 th to 9 th line real pixel lines are scanned, and so on, the proportional alternate scanning of the virtual scan line and the real pixel line is completed, as shown in fig. 5.

In addition, fig. 3 to 5 above are described by taking control timing of a screen using Low Temperature Polysilicon (LTPS) technology as an example. However, those skilled in the art will appreciate that the present disclosure is equally applicable to screens employing LTPO technology.

The control timing of LTPO is different from that of LTPS. For example, for LTPO, during the period when the EM signal is high, the Scan1 signal and Scan2 signal are low and high, as shown in fig. 6 and 7. Fig. 6 is a schematic diagram of an LTPO circuit structure according to an exemplary embodiment, and fig. 7 is a schematic diagram of a control timing of an LTPO circuit according to an exemplary embodiment.

Although the control timing of LTPO is different from that of LTPS, the alternate scanning strategy of virtual scan lines and real pixel lines of the screen is similar. Taking the example of switching the screen scanning frequency from 120Hz to 60Hz as an example, for a screen using LTPO technology, the alternating scanning is still performed according to the relationship of virtual scanning lines and real pixel lines 1:1, that is, when the line scanning is performed, the following sequence may be performed: first, the 1 st line virtual scan line is scanned, then the 1 st line real pixel line is scanned, then the 2 nd line virtual scan line is scanned, then the 2 nd line real pixel line is scanned, then the 3 rd line virtual scan line is scanned, then the 3 rd line real pixel line is scanned, and so on, the proportional alternate scanning of the virtual scan line and the real pixel line is completed, as shown in fig. 8.

Fig. 9 is a schematic block diagram of a screen display device according to an exemplary embodiment. The screen display device can be applied to any scene needing wide-frequency domain display. As shown in fig. 9, the screen display device includes: an acquisition module 61, configured to acquire scan frequency switching trigger information; a first determining module 62, configured to determine, based on the scan frequency switching trigger information, that a scan frequency of a screen needs to be switched to a first scan frequency; a second determining module 63, configured to determine a total number of virtual scan lines required at the first scan frequency; and a scanning module 64 for alternately scanning the virtual scan line and the real pixel line of the screen.

Optionally, the obtaining module 61 is configured to: acquiring a use scene of the screen; and acquiring the scanning frequency switching trigger information based on the use scene.

Optionally, the first determining module 62 is configured to: and determining that the scanning frequency of the screen needs to be switched to the first scanning frequency based on the usage scene to be switched carried in the scanning frequency switching trigger information by utilizing a preset corresponding relation between the usage scene of the screen and the scanning frequency of the screen.

Optionally, the second determining module 63 is configured to: based on the write time length requirement of each line of data and the first scanning frequency, the total number of virtual scanning lines required at the first scanning frequency is determined.

Optionally, the second determining module 63 is configured to: based on the requirement that the writing time of each line of data of the screen is equal under any scanning frequency, the total number of virtual scanning lines required under the first scanning frequency is determined by utilizing the ratio of the highest scanning frequency of the screen to the first scanning frequency.

Optionally, the scanning module 64 is configured to: the virtual scan lines and the real pixel lines of the screen are alternately scanned in proportion.

Optionally, the scanning module 64 is configured to: determining the number of lines of the virtual scanning lines corresponding to each real pixel line based on the writing time length requirement of each line of data; and alternately scanning the virtual scanning lines and the real pixel lines according to the proportion between the real pixel lines and the corresponding virtual scanning line lines.

Optionally, the scanning module 64 is configured to: based on the requirement that the writing time of each line of data of the screen is equal under any scanning frequency, determining the line number of the virtual scanning line corresponding to each real pixel line by utilizing the ratio of the highest scanning frequency of the screen to the first scanning frequency.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

The present disclosure also provides a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the screen display method provided by the present disclosure.

Fig. 10 is a block diagram illustrating an apparatus 800 for screen display according to an exemplary embodiment. For example, apparatus 800 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.

Referring to fig. 10, apparatus 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.

The processing component 802 generally controls overall operation of the apparatus 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the screen display method described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on the device 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices 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 or optical disk.

The power component 806 provides power to the various components of the device 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 800.

The multimedia component 808 includes a screen between the device 800 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 800 is in an operational mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of the apparatus 800. For example, the sensor assembly 814 may detect an on/off state of the device 800, a relative positioning of the assemblies, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in position of the device 800 or one of the assemblies of the device 800, the presence or absence of user contact with the device 800, an orientation or acceleration/deceleration of the device 800, and a change in temperature of the device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communication between the apparatus 800 and other devices, either in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 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 (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for performing the above-described screen display method.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 804 including instructions executable by processor 820 of apparatus 800 to perform the above-described screen display method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

In another exemplary embodiment, a computer program product is also provided, comprising a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-described screen display method when executed by the programmable apparatus.

Fig. 11 is a block diagram illustrating an apparatus 1900 for screen display according to an example embodiment. For example, the apparatus 1900 may be provided as a server. Referring to FIG. 11, the apparatus 1900 includes a processing component 1922 that further includes one or more processors and memory resources represented by memory 1932 for storing instructions, such as application programs, that can be executed by the processing component 1922. The application programs stored in memory 1932 may include one or more modules each corresponding to a set of instructions. Further, the processing component 1922 is configured to execute instructions to perform the screen display method described above.

The apparatus 1900 may further include a power component 1926 configured to perform power management of the apparatus 1900, a wired or wireless network interface 1950 configured to connect the apparatus 1900 to a network, and an input/output (I/O) interface 1958. The apparatus 1900 may operate based on storage in memoryOperating system of memory 1932, e.g. Windows Server ^TM ，Mac OS X ^TM ，Unix ^TM ，Linux ^TM ，FreeBSD ^TM Or the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A screen display method, comprising:

acquiring scanning frequency switching trigger information;

determining that the scanning frequency of the screen needs to be switched to a first scanning frequency based on the scanning frequency switching trigger information;

determining the total number of virtual scanning lines required at the first scanning frequency; and

the virtual scan lines and the real pixel lines of the screen are alternately scanned.

2. The screen display method according to claim 1, wherein the acquiring the scan frequency switching trigger information includes:

acquiring a use scene of the screen;

and acquiring the scanning frequency switching trigger information based on the use scene.

3. The screen display method according to claim 2, wherein the determining that the scan frequency of the screen needs to be switched to the first scan frequency based on the scan frequency switching trigger information includes:

and determining that the scanning frequency of the screen needs to be switched to the first scanning frequency based on the usage scene to be switched carried in the scanning frequency switching trigger information by utilizing a preset corresponding relation between the usage scene of the screen and the scanning frequency of the screen.

4. The screen display method according to claim 1, wherein the determining the total number of virtual scan lines required at the first scan frequency includes:

based on the write time length requirement of each line of data and the first scanning frequency, the total number of virtual scanning lines required at the first scanning frequency is determined.

5. The screen display method according to claim 4, wherein the determining the total number of virtual scan lines required at the first scan frequency based on the write time length requirement of each line of data and the first scan frequency includes:

based on the requirement that the writing time of each line of data of the screen is equal under any scanning frequency, the total number of virtual scanning lines required under the first scanning frequency is determined by utilizing the ratio of the highest scanning frequency of the screen to the first scanning frequency.

6. The screen display method according to claim 1, wherein the alternately scanning the virtual scan line and the real pixel line of the screen includes:

the virtual scan lines and the real pixel lines of the screen are alternately scanned in proportion.

7. The screen display method of claim 6, wherein the alternately scanning the virtual scan line and the real pixel line of the screen in proportion comprises:

determining the number of lines of the virtual scanning lines corresponding to each real pixel line based on the writing time length requirement of each line of data;

and alternately scanning the virtual scanning lines and the real pixel lines according to the proportion between the real pixel lines and the corresponding virtual scanning line lines.

8. The screen display method according to claim 7, wherein determining the number of lines of the virtual scan line corresponding to each of the real pixel lines based on the writing time length requirement of each line of data includes:

based on the requirement that the writing time of each line of data of the screen is equal under any scanning frequency, determining the line number of the virtual scanning line corresponding to each real pixel line by utilizing the ratio of the highest scanning frequency of the screen to the first scanning frequency.

9. A screen display device, comprising:

the acquisition module is used for acquiring the scanning frequency switching trigger information;

the first determining module is used for determining that the scanning frequency of the screen needs to be switched to a first scanning frequency based on the scanning frequency switching trigger information;

a second determining module, configured to determine a total number of virtual scan lines required at the first scan frequency; and

and the scanning module is used for alternately scanning the virtual scanning line and the real pixel line of the screen.

10. A screen display device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the steps of the method according to any one of claims 1 to 8.

11. A computer readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the steps of the method of any of claims 1 to 8.