CN117975911A

CN117975911A - Display device, refreshing method thereof, electronic equipment and storage medium

Info

Publication number: CN117975911A
Application number: CN202410071061.0A
Authority: CN
Inventors: 李健; 田雪松; 朱元章; 侯帅
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2024-01-17
Filing date: 2024-01-17
Publication date: 2024-05-03

Abstract

The present disclosure provides a display device, a refresh method thereof, an electronic apparatus, and a storage medium, the display device including: a display panel including a display area and a non-display area, the display area including a plurality of sub-display areas including a first sub-display area and a second sub-display area; a control unit electrically coupled to the display panel and configured to: determining a first refresh mode corresponding to the first sub-display area and a second refresh mode corresponding to the second sub-display area, and determining a corresponding target frame synchronization signal according to the first refresh mode and the second refresh mode; receiving display data based on the target frame synchronization signal; and in response to receiving the display data, refreshing the first sub-display area and the second sub-display area according to the target frame synchronization signal and the display data. The method and the device realize refreshing in multiple modes on the same display module, and meet the requirements of users.

Description

Display device, refreshing method thereof, electronic equipment and storage medium

Technical Field

The disclosure relates to the field of display technologies, and in particular, to a display device, a refreshing method thereof, electronic equipment and a storage medium.

Background

With the development of display technology, low-temperature polysilicon oxide (Low Temperature Polysilicon Oxide, abbreviated as LTPO) display panels are being pursued for power consumption of displays. LTPO display panel, can realize low frequency display, reach the effect that the consumption reduces.

The inventor of the present disclosure finds that, in the related art, after the display module completes factory setting, the display module can only be refreshed according to a set manner when being refreshed, and the refresh manner is single, so that the requirements of users cannot be met.

Disclosure of Invention

In view of the above, the present disclosure is directed to a display device, a refreshing method thereof, an electronic device and a storage medium for solving or partially solving the above-mentioned problems.

In view of the above object, a first aspect of the present disclosure provides a display device including:

a display panel including a display area and a non-display area, the display area including a plurality of sub-display areas including a first sub-display area and a second sub-display area;

a control unit electrically coupled to the display panel and configured to:

Determining a first refresh mode corresponding to the first sub-display area and a second refresh mode corresponding to the second sub-display area, and determining a corresponding target frame synchronization signal according to the first refresh mode and the second refresh mode;

receiving display data based on the target frame synchronization signal;

and in response to receiving the display data, refreshing the first sub-display area and the second sub-display area according to the target frame synchronization signal and the display data.

Based on the same inventive concept, a second aspect of the present disclosure provides a method for refreshing a display device, including:

receiving display data based on the target frame synchronization signal;

Based on the same inventive concept, a third aspect of the present disclosure proposes an electronic device comprising a memory, a processor and a computer program stored on the memory and executable by the processor, the processor implementing the method as described above when executing the computer program.

Based on the same inventive concept, a fourth aspect of the present disclosure proposes a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the method as described above.

As can be seen from the foregoing, the present disclosure provides a display device, which selects a corresponding target frame synchronization signal by determining refresh modes of different sub-display areas, receives display data based on the target frame synchronization signal, and refreshes the sub-display areas according to the target frame synchronization signal and the display data when the display data is received. The refresh modes of different sub-display areas are determined, and then the target frame synchronizing signal is determined according to the refresh modes, and the sub-display areas are refreshed according to the target frame synchronizing signal, so that multiple refresh modes on the same display device are realized, and the requirements of users are met.

Drawings

In order to more clearly illustrate the technical solutions of the present disclosure or related art, the drawings required for the embodiments or related art description will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to those of ordinary skill in the art.

FIG. 1 is a schematic diagram of a driving circuit in the related art;

FIG. 2 is a schematic diagram of a partition controlled strobe in the related art;

Fig. 3A is a schematic diagram of a display device according to an embodiment of the disclosure;

FIG. 3B is another schematic diagram of an exemplary display device provided by embodiments of the present disclosure;

FIG. 3C is another schematic diagram of an exemplary display device provided by embodiments of the present disclosure;

FIG. 3D is a waveform diagram of a first frame synchronization signal according to an embodiment of the disclosure;

FIG. 3E is a waveform diagram of a second frame synchronization signal according to an embodiment of the disclosure;

FIG. 3F is another schematic diagram of a display device according to an embodiment of the disclosure;

FIG. 3G is a schematic diagram of display data refresh according to an embodiment of the present disclosure;

FIG. 3H is another schematic diagram of display data refresh according to an embodiment of the present disclosure;

FIG. 3I is another schematic diagram of display data refresh according to an embodiment of the present disclosure;

FIG. 3J is another schematic diagram of display data refresh according to an embodiment of the present disclosure;

FIG. 3K is another schematic diagram of an exemplary display device provided by embodiments of the present disclosure;

FIG. 4 is a flow diagram of an exemplary method provided by an embodiment of the present disclosure;

Fig. 5 is a schematic structural diagram of an exemplary electronic device provided in an embodiment of the present disclosure.

Detailed Description

For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.

It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present disclosure pertains. The terms "first," "second," and the like, as used in embodiments of the present disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

In the related art, an Organic LIGHT EMITTING Diode (OLED) display device can achieve a display refresh rate of, for example, 120Hz/240Hz, thereby greatly improving the user's screen viewing experience.

In order to reduce the power consumption of the product, the related art proposes a low temperature polycrystalline oxide (Low Temperature Polycrystalline Oxide, LTPO for short) display device, which can realize a screen display that can display a variable refresh rate. For example, the display refresh rate of the display is adjusted to vary between 1Hz and 240Hz depending on the different user usage scenario requirements. For example, when a static picture is displayed in a full screen, the refresh rate is reduced to 1Hz, and when a video picture with a frame number of 24Hz is displayed, the refresh rate is synchronously reduced to 24Hz, so that the power consumption of the display is reduced.

In order to further reduce the power consumption of the display, the related art further proposes a partition frequency conversion scheme, wherein the screen area is divided, and the refresh rate of each divided area can be set to be different for adapting to different display pictures, so that the power consumption is further reduced under the condition of meeting the screen display effect. The regional frequency conversion can realize local area update, the area which is not refreshed does not need to be written with the display data of the current frame, and the writing state of the display data of the previous frame is maintained.

Currently, LTPO display modules can realize display refresh rates of different gears, and are applied to terminal equipment such as mobile phones. Among these common LTPO drive circuits are 7T1C and 8T1C circuits. The connection schematic diagram of the 8T1C driving circuit is shown in fig. 1, and includes 8 Thin Film Transistor (TFT) devices T1 to T8 and 1 capacitor C1. The 8T1C circuit has better frequency cutting effect and can improve the flicker problem because of the adjustment of the driving signal Vinit 3.

As shown in fig. 2, in the related art, a partition refresh scheme is to provide a gating unit between a gate driving unit (GOA) for controlling each row of pixels of a display panel and a pixel circuit, i.e., an output signal of the GOA does not directly enter the pixel circuit, but the gating unit is controlled by one GE signal to implement gating, so that the display panel can be divided into several regions from top to bottom. As shown in fig. 2, a gate Enable signal (GE) is pulled up or down, so as to control whether an output signal of the GOA enters a pixel circuit, thereby controlling a data refreshing process and respectively realizing different display refresh rates in different partitions.

The inventors of the present disclosure found that in the related art, local refreshing of a screen is generally performed only after receiving the next frame of new display data, and immediate refreshing cannot be achieved, resulting in waste of refresh resources. Meanwhile, after the factory setting is finished, the display device in the related art cannot realize the switching between two refreshing modes, namely the immediate refreshing and the refreshing of the next frame, and cannot meet the requirements of different application programs for refreshing.

In view of this, how to realize refreshing in multiple ways on the same display module to meet different demands of users has become an important research problem.

To this end, the present disclosure proposes a display device and a refresh method thereof, which determine a corresponding target frame synchronization signal by determining a refresh mode of each sub-display area included in the display device. And when new display data is received, refreshing the sub-display area according to the target frame synchronous signal. Multiple refreshing modes on the same display device are realized, namely, the next frame refreshing and the immediate refreshing switching are realized, and the requirements of users are met.

Embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 3A shows a schematic diagram of a display device 100 provided by an embodiment of the present disclosure.

As shown in fig. 3A, the display device 100 may include a display panel 101 and a control unit 102, where the display panel 101 includes a display area 1011 and a non-display area 1012. Alternatively, the non-display area 1012 may surround the display area 1011. The display area is used for displaying images. The display area may further include a plurality of sub-display areas. As shown in fig. 3A, as an alternative embodiment, the plurality of sub-display areas may include a first sub-display area 10111 and a second sub-display area 10112. Depending on the application running on the display device 100, different refresh modes may be set for each sub-display area according to the corresponding requirements of the application. Alternatively, the refresh mode may include an immediate refresh and a non-immediate refresh. Wherein, immediate refresh may refer to a refresh performed immediately upon receipt of updated display data (e.g., a refresh performed at the current frame of the received data); non-immediate refresh may refer to refresh after a preset time has elapsed when updated display data is received. In this embodiment, the non-immediate refresh may refer to a next frame refresh, that is, a refresh is performed on a next frame of the current frame corresponding to the time when the updated data is received.

It will be appreciated that the refresh mode of each of the plurality of sub-display areas may be the same or different based on different actual requirements or different factory settings, etc.

For convenience of description, the refresh mode corresponding to the first sub-display area 10111 is referred to as a first refresh mode, and the refresh mode corresponding to the second sub-display area 10112 is referred to as a second refresh mode.

Illustratively, the first refresh mode of the first sub-display area 10111 may be an immediate refresh and the second refresh mode of the second sub-display area 10112 may be an immediate refresh.

As another implementable example, the first refresh mode of the first sub-display area 10111 may be non-immediate refresh and the second refresh mode of the second sub-display area 10112 may be immediate refresh.

As shown in fig. 3A, the control unit 102 is electrically coupled with the display panel 101, so that the control unit 102 can control a display process of the display panel by providing corresponding control signals to the display panel 101. In some embodiments, the control unit 102 may determine the corresponding target frame synchronization signal based on the first refresh mode and the second refresh mode by determining the first refresh mode corresponding to the first sub-display area 10111 and the second refresh mode corresponding to the second sub-display area 10112.

Optionally, different frame synchronization signals (TEARING EFFECT SIGNAL, abbreviated as TE) may correspond to different refresh modes, and by determining the target frame synchronization signal, the sub-display area is refreshed according to the target frame synchronization signal, so that multiple refresh modes on the same display module are realized, and the requirements of users are met.

Further, the control unit 102 may receive display data based on the target frame synchronization signal, where the display data is data for updating the display screen, that is, data for controlling or changing the gray scale value of each pixel in the display area when the display screen of the display panel 101 is updated. When the control unit 102 receives the display data, the first sub-display area 10111 and the second sub-display area 10112 may be refreshed correspondingly according to the target frame synchronization signal and the display data.

Fig. 3B shows another schematic diagram of an exemplary display device 100 provided by an embodiment of the present disclosure.

As shown in fig. 3B, the display device 100 includes a display panel 101 and a control unit 102, and the control unit 102 may further include one or more processors 1021, a memory 1022, an input/output interface 1023, a communication interface 1024, and a bus 1030. Wherein the processor 1021, memory 1022, input/output interface 1023, and communication interface 1024 implement communication connections among each other within the device via bus 1030.

The processor 1021 may be implemented by a general-purpose CPU (Central Processing Unit ), a microprocessor, an Application SPECIFIC INTEGRATED Circuit (ASIC), or one or more integrated circuits, etc. for executing relevant programs to implement the technical solutions provided in the embodiments of the present disclosure. In some embodiments, the processor 1021 may include other processing modules in the display device 100 for processing data, such as a timing control board (TCON). The timing control board (not shown) may process the LVDS image data input signal (the input signal may include three signals of RGB data signal, clock signal, and control signal) and then convert the processed LVDS image data input signal into an LVDS signal capable of driving the display panel 101, and then send the LVDS signal to the LVDS receiving chip of the display panel 101 to drive the display panel 101 based on the LVDS signal. The Memory 1022 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory ), static storage, dynamic storage, or the like. Memory 1022 may store an operating system and other application programs, and when the embodiments of the present disclosure are implemented in software or firmware, the associated program code is stored in memory 1022 and executed by processor 1021.

The input/output interface 1023 is used for connecting with an input/output module to realize information input and output. For example, the input/output interface 1023 may be electrically coupled to the display panel 101 to correspondingly output the control instruction generated by the processor 1021 to the display panel 101, so as to control the display panel 101 to display the display data. The input/output module may be configured as a component in a device (not shown) or may be external to the device to provide corresponding functionality. Wherein the input devices may include a keyboard, mouse, touch screen, microphone, various types of sensors, etc., and the output devices may include speakers, vibrators, indicator lights, etc.

The communication interface 1024 is used to connect a communication module (not shown) to enable communication interaction of the display apparatus 100 with other devices. The communication module may implement communication through a wired manner (such as USB, network cable, etc.), or may implement communication through a wireless manner (such as mobile network, WIFI, bluetooth, etc.).

Bus 1030 includes a path for transmitting information between various components of control unit 102 (e.g., processor 1021, memory 1022, input/output interface 1023, and communication interface 1024).

It should be noted that, the display device 100 only shows the display panel 101 and the control unit 102, but in the implementation process, the display device 100 may further include other components necessary for implementing normal operation. Further, it will be understood by those skilled in the art that the display device 100 may include only the components necessary for implementing the embodiments of the present disclosure, and not all the components shown in fig. 2.

In some embodiments, as shown in fig. 3A, the control unit 102 is configured to:

determining a corresponding target frame synchronization signal as a first frame synchronization signal in response to the first refresh mode and the second refresh mode being both immediate refreshes; or alternatively

And determining the corresponding target frame synchronization signal as a second frame synchronization signal in response to the non-immediate refresh in the first refresh mode and the second refresh mode.

Specifically, when it is determined that the first refresh mode of the first sub-display area 10111 is the immediate refresh, the second refresh mode of the second sub-display area 10112 is the immediate refresh, and the target frame synchronization signals corresponding to the first refresh mode and the second refresh mode are the first frame synchronization signals.

When it is determined that the first refresh mode of the first sub-display area 10111 is the immediate refresh and the second refresh mode of the second sub-display area 10112 is the non-immediate refresh, the target frame synchronization signal corresponding to the first refresh mode and the second refresh mode is the second frame synchronization signal.

When it is determined that the first refresh mode of the first sub-display area 10111 is not the immediate refresh, the second refresh mode of the second sub-display area 10112 is the immediate refresh, and the target frame synchronization signals corresponding to the first refresh mode and the second refresh mode are the second frame synchronization signals.

When it is determined that the first refresh mode of the first sub-display area 10111 is not immediate refresh, the second refresh mode of the second sub-display area 10112 is not immediate refresh, and the target frame synchronization signal corresponding to the first refresh mode and the second refresh mode is the second frame synchronization signal.

Fig. 3C shows another schematic diagram of an exemplary display device 100 provided by an embodiment of the present disclosure.

As shown in fig. 3C, the display device 100 includes a display panel 101 and a control unit 102, wherein the display panel 101 includes a display area 1011 and a non-display area 1012 surrounding the display area 1011. The display area includes a plurality of sub-display areas, wherein the plurality of sub-display areas includes a first sub-display area 1011110121, a second sub-display area 1011210122, and a third sub-display area 10123. The refresh modes of the first, second and third sub-display areas 1011110121, 1011210122, 10123 may be the same or different.

In some embodiments, the control unit 102 is configured to:

Determining a first refresh mode corresponding to the first sub-display area 10111, a second refresh mode corresponding to the second sub-display area 10112, and a third refresh mode corresponding to the third sub-display area, and determining a corresponding target frame synchronization signal based on the first refresh mode, the second refresh mode, and the third refresh mode.

And determining that the corresponding target frame synchronization signal is a first frame synchronization signal in response to the first refresh mode being an immediate refresh and at least one of the second refresh mode and the third refresh mode being an immediate refresh. Or alternatively

And determining that the corresponding target frame synchronization signal is a second frame synchronization signal in response to the first refresh mode being an immediate refresh and the second refresh mode and the third refresh mode both being non-immediate refreshes.

Specifically, when it is determined that the first refresh mode of the first sub-display area 10111 is the immediate refresh, the second refresh mode of the second sub-display area 10112 is the immediate refresh, and the third refresh mode of the third sub-display area is the immediate refresh, the corresponding target frame synchronization signal is the first frame synchronization signal.

When it is determined that the first refresh mode of the first sub-display area 10111 is the immediate refresh, the second refresh mode of the second sub-display area 10112 is the immediate refresh, and the third refresh mode of the third sub-display area is the non-immediate refresh, the corresponding target frame synchronization signal is the first frame synchronization signal.

When it is determined that the first refresh mode of the first sub-display area 10111 is the immediate refresh, the second refresh mode of the second sub-display area 10112 is the non-immediate refresh, and the third refresh mode of the third sub-display area is the immediate refresh, the corresponding target frame synchronization signal is the first frame synchronization signal.

When it is determined that the first refresh mode of the first sub-display area 10111 is the immediate refresh, the second refresh mode of the second sub-display area 10112 is the non-immediate refresh, and the third refresh mode of the third sub-display area is the non-immediate refresh, the corresponding target frame synchronization signal is the second frame synchronization signal.

In the present disclosure, the number of sub-display regions in the display device 100 is not limited, and the above only shows a scheme including two sub-display regions and three sub-display regions. Four sub-display regions, namely, a first sub-display region 10111, a second sub-display region 10112, a third sub-display region, and a fourth sub-display region, may also be included. Five sub-display regions, namely, a first sub-display region 10111, a second sub-display region 10112, a third sub-display region, a fourth sub-display region, and a fifth sub-display region, may also be included.

For example, if the display device 100 includes four sub-display regions, it is determined that the corresponding target frame synchronization signal is the first frame synchronization signal in response to the first refresh mode being an immediate refresh and at least one of the second refresh mode, the third refresh mode, and the fourth refresh mode of the fourth sub-display region being an immediate refresh. And determining that the corresponding target frame synchronization signal is a second frame synchronization signal in response to the first refresh mode being an immediate refresh and the second refresh mode, the third refresh mode and the fourth refresh mode being non-immediate refreshes.

In some embodiments, the control unit 102 is configured to:

The first refresh rate corresponding to the first sub-display area 10111 and the second refresh rate corresponding to the second sub-display area 10112 are obtained, and the first frame synchronization signal is determined according to the first refresh rate and the second refresh rate.

Specifically, the first frame synchronization signal is related to a refresh rate of each of the sub-display areas in the display area. The above is only shown as a way of determining the first frame synchronization signal when the display device 100 comprises two sub-display areas. If the display device 100 includes three sub-display regions, a first refresh rate corresponding to the first sub-display region 10111, a second refresh rate corresponding to the second sub-display region 10112, and a third refresh rate corresponding to the third sub-display region are respectively obtained, and the first frame synchronization signal is determined according to the first refresh rate, the second refresh rate, and the third refresh rate.

In some embodiments, the control unit 102 is configured to:

a first reference frequency value corresponding to a preset first reference frequency signal is obtained, a first refreshing time corresponding to a first sub-display area 10111 is determined according to the first reference frequency value and the first refreshing rate, and a second refreshing time corresponding to a second sub-display area 10112 is determined according to the first reference frequency value and the second refreshing rate. According to the first refresh time and the second refresh time, a frame corresponding to the first sub-display area 10111 and/or the second sub-display area 10112 when being refreshed is determined as a refresh frame, a frame synchronization signal corresponding to the refresh frame is a first initial frame synchronization signal, an idle frame is determined according to the first refresh time and the second refresh time, and a frame synchronization signal corresponding to the idle frame is a second initial frame synchronization signal, wherein the idle frame is a frame in which none of the plurality of sub-display areas is refreshed. And obtaining a first frame synchronizing signal according to the first initial frame synchronizing signal and the second initial frame synchronizing signal.

Fig. 3D shows a waveform schematic diagram of a first frame synchronization signal according to an embodiment of the present disclosure.

As shown in fig. 3D, TE1 is a first reference frequency signal, and the corresponding first reference frequency value is 240Hz. TE2 can be regarded as a transition frame synchronization signal, and in this embodiment, the frame synchronization signal is refreshed at a low level, and is not refreshed at a high level. The MDL is a schematic diagram of a display screen of the display device 100.

The first refresh rate of the first sub-display area 10111 (Part 1) is determined to be 60Hz and the second refresh rate of the second sub-display area 10112 (Part 2) is determined to be 40Hz. A first refresh time corresponding to the first sub-display area 10111 is determined according to the first reference frequency value and the first refresh rate, such as a first frame, a third frame, a fifth frame, and a seventh frame in fig. 3D. And determining a second refresh time corresponding to the second sub-display area 10112 according to the first reference frequency value and the second refresh rate, such as a first frame, a fourth frame and a seventh frame in fig. 3D.

The frames corresponding to the refreshing of the first sub-display area 10111 and/or the second sub-display area 10112 are determined to be refresh frames, that is, when any one of the first sub-display area 10111 and the second sub-display area 10112 is refreshed, the corresponding frames are refresh frames, such as the first frame, the third frame, the fourth frame, the fifth frame and the seventh frame in fig. 3D are refresh frames.

And determining that the frames of the plurality of sub-display areas which are not refreshed are idle frames, such as the second frame and the sixth frame in the fig. 3D are idle frames.

The frame synchronization signal corresponding to the refreshing frame is a first initial frame synchronization signal, the frame synchronization signal corresponding to the idle frame is a second initial frame synchronization signal, and the first frame synchronization signal is obtained according to the first initial frame synchronization signal and the second initial frame synchronization signal.

Specifically, as shown in TE3 of fig. 3D, the first initial frame synchronization signal includes a low level signal, and the second initial frame synchronization signal is identical to the first reference frequency signal. That is, the frame synchronization signal corresponding to the sub-display area refresh is a low level signal, and the frame synchronization signal when the sub-display area refresh is not present is a first reference frequency signal.

Fig. 3E shows a waveform schematic diagram of a second frame synchronization signal of an embodiment of the present disclosure.

The control unit 102 is configured to:

and acquiring a preset second reference frequency signal, and taking the second reference frequency signal as a second frame synchronization signal.

As shown in fig. 3E, TE3 is a preset second reference frequency signal, where the corresponding second reference frequency is 120Hz, the corresponding second frame synchronization signal is a low level signal when there is a sub-display area refresh, and the corresponding second frame synchronization signal is a high level signal when there is no sub-display area refresh.

Fig. 3F shows another schematic diagram of the display device 100 of an embodiment of the present disclosure.

As shown in fig. 3F, the display device 100 further includes an application processor 103 in addition to the display panel 101 and the control unit 102, and the application processor 103 is electrically coupled to the control unit 102. Wherein the application processor 103 is abbreviated as AP.

Specifically, after determining the target frame synchronization signal according to the refresh mode of the plurality of sub-display areas included in the display device 100, the control unit 102 sends the target frame synchronization signal to the application processor 103, so as to supply the display data to the application processor 103 after receiving the target frame synchronization signal. The target frame sync signal is sent to the application processor 103 as a high level signal, i.e. indicating that the application processor 103 can send display data. After receiving the target frame synchronization signal sent by the control unit 102, the application processor 103 sends display data, so that the control unit 102 receives the display data and refreshes the display data.

The application processor 103 is configured to:

and receiving a first frame synchronization signal sent by the control unit 102, determining an idle frame according to the first frame synchronization signal, and sending first display data to the control unit 102. Or receives a second frame synchronization signal sent by the control unit 102, and sends second display data to the control unit 102.

Specifically, each frame of the control unit 102 sends a target frame synchronization signal to the application processor 103, and when the application processor 103 receives a first frame synchronization signal sent by the control unit 102, the application processor 103 sends first display data to the control unit 102 when determining that the current frame is an idle frame according to the first frame synchronization signal. The idle frame is a frame in which all sub-display areas in the display device 100 are not refreshed, that is, when the received first frame synchronization signal is received, the first display data can be sent only when all sub-display areas are not refreshed. The first display data is sent in the idle frame, so that the control unit 102 can immediately refresh the first display data after receiving the first display data, and the first display data is displayed.

For example, as shown in fig. 3D, the application processor 103 may transmit the first display data at the second, sixth and eighth frames.

When the application processor 103 receives the second frame synchronization signal transmitted by the control unit 102, the second display data may be transmitted at each frame.

Fig. 3G is a schematic diagram of display data refresh according to an embodiment of the present disclosure.

As shown in fig. 3G, TE1 is a first reference frequency signal, and the corresponding first reference frequency value is 240Hz. TE2 may be regarded as a transitional frame synchronization signal. The corresponding rows of the display screen show schematic diagrams of the display screen of each frame of the display device 100 (MDL). The row corresponding to the stored data shows the currently stored display data corresponding to each frame in the memory 104 (DISPLAY RAM) for storing display data. Taking the example that the first refresh rate of the first sub display area 10111 (Part 1) is 60Hz and the second refresh rate of the second sub display area 10112 (Part 2) is 40Hz, the rows corresponding to the reference pictures (references) show the reference pictures corresponding to the frames, which refer to the case where the first sub display area 10111 and the second sub display area 10112 refresh the pictures at the respective refresh rates when there is no new display data.

After receiving the first frame synchronization signal sent by the control unit 102, the application processor 103 sends first display data including first display information and a first display instruction. The first display information includes display information corresponding to the display area 1011, that is, the first display information is a whole frame of picture. The first display instruction is configured to determine a first sub-display area to be refreshed corresponding to first display information from the first sub-display area 10111 and the second sub-display area 10112, so that the control unit 102 refreshes the first sub-display area to be refreshed according to the first display information.

The application processor 103 sends the first display information and the first display instruction to ensure that the control unit 102 immediately refreshes the first sub-area to be refreshed according to the first display information and the first display instruction after receiving the display data.

The control unit 102 is configured to:

And in response to receiving the first display data in the idle frame, refreshing the first sub-display area to be refreshed according to the first display information in the idle frame.

As shown in fig. 3G, the sixth frame is an idle frame, after the sixth frame receives the first display data, the first display data includes first display information and a first display instruction, and the first display instruction (Or Partition Command) is to refresh the first sub-display area 10111 (Part 1) and the second sub-display area 10112 (Part 2), and the first display information is PIC1. After the sixth frame receives the first display data, the refreshing is immediately performed, and at the same time, the first frame synchronization signal is correspondingly changed, that is, the new first frame is recorded again from the beginning of the refreshing, and the waveform of the first frame synchronization signal is re-processed from the new first frame.

Fig. 3G is a schematic diagram showing refreshing when the display device 100 includes two sub-display regions, and when the display device 100 includes three sub-display regions, the first display command may be refreshed for the first sub-display region 10111, the second sub-display region 10112 is refreshed, and the third sub-display region is not refreshed, and at this time, according to the first display information, after receiving the display data, the first sub-display region 10111 and the second sub-display region 10112 are refreshed immediately by using the first display information.

FIG. 3H is another schematic diagram of display data refresh according to an embodiment of the present disclosure.

After receiving the second frame synchronization signal sent by the control unit 102, the application processor 103 sends second display data including second display information and a second display instruction. The second display information is display information corresponding to the first sub-display area 10111 or the second sub-display area 10112, that is, the display device 100 includes two sub-display areas, and the second display information is a field picture. The second display instruction is configured to determine a second sub-display area to be refreshed, which corresponds to the second display information, from the first sub-display area 10111 and the second sub-display area 10112, so that the control unit 102 refreshes the second sub-display area to be refreshed according to the second display information.

The control unit 102 is configured to:

receiving the second display data in response to the first refresh mode being an immediate refresh and the second refresh mode being a non-immediate refresh, determining a first current frame corresponding to the second display data; and determining a second sub-display area to be refreshed, which corresponds to the second display information, according to the second display instruction. Responding to the second sub-display area to be refreshed as the first sub-display area 10111, and refreshing the first sub-display area 10111 according to the second display information in the first current frame; or in response to the second sub-display area to be refreshed being the second sub-display area 10112, refreshing the second sub-display area 10112 according to the second display information in a frame next to the first current frame.

Specifically, when the first refresh mode is immediate refresh and the second refresh mode is non-immediate refresh, and the second sub-display area to be refreshed is the first sub-display area 10111, the first sub-display area 10111 is refreshed according to the second display information in the first current frame.

When the second sub-display area to be refreshed is the second sub-display area 10112, the first sub-display area 10111 is not refreshed, and the second sub-display area 10112 needs to be refreshed according to the second display information in the next frame of the first current frame.

As shown in fig. 3H, TE1 is a first reference frequency signal, and the corresponding first reference frequency value is 240Hz. TE2 may be considered as a transition frame synchronization signal and TE3 as a second reference frequency signal, which corresponds to a second reference frequency value of 120Hz. The corresponding rows of the display screen show schematic diagrams of the display screen of each frame of the display device 100 (MDL). The row corresponding to the stored data shows the currently stored display data corresponding to each frame in the memory 104 (DISPLAY RAM) for storing display data. Taking the example that the first refresh rate of the first sub display area 10111 (Part 1) is 60Hz and the second refresh rate of the second sub display area 10112 (Part 2) is 40Hz, the rows corresponding to the reference pictures (references) show the reference pictures corresponding to the frames, which refer to the case where the first sub display area 10111 and the second sub display area 10112 refresh the pictures at the respective refresh rates when there is no new display data.

As shown in fig. 3H, the first refresh mode is an immediate refresh, and the second refresh mode is a non-immediate refresh, i.e., a next frame refresh. When second display data is received in the sixth frame, the sixth frame is taken as the first current frame, the second sub-area to be refreshed corresponding to the second display information is determined to be the first display sub-area according to the second display instruction (Partition 1 Command), and the first display sub-area is refreshed according to the second display information in the sixth frame, wherein the second display information is PIC2.

FIG. 3I is another schematic diagram of display data refresh according to an embodiment of the present disclosure.

The control unit 102 is configured to:

receiving the second display data in response to the first refresh mode being non-immediate refresh, and determining a second current frame corresponding to the second display data; and refreshing the second sub-display area to be refreshed in the next frame of the second current frame according to the second display information.

Specifically, when the first refresh mode is not immediate refresh, whether the second refresh mode is immediate refresh or not, when the second display data is received, determining a second current frame corresponding to the second display data. Whether the first sub-display area 10111 is refreshed or the second sub-display area 10112 is refreshed, the second sub-display area to be refreshed is refreshed according to the second display information in the next frame of the second current frame.

As shown in fig. 3I, TE1 is a first reference frequency signal, and the corresponding first reference frequency value is 240Hz. TE2 may be considered as a transition frame synchronization signal and TE3 as a second reference frequency signal, which corresponds to a second reference frequency value of 120Hz. The corresponding rows of the display screen show schematic diagrams of the display screen of each frame of the display device 100 (MDL). The row corresponding to the stored data shows the currently stored display data corresponding to each frame in the memory 104 (DISPLAY RAM) for storing display data. Taking the example that the first refresh rate of the first sub display area 10111 (Part 1) is 60Hz and the second refresh rate of the second sub display area 10112 (Part 2) is 40Hz, the rows corresponding to the reference pictures (references) show the reference pictures corresponding to the frames, which refer to the case where the first sub display area 10111 and the second sub display area 10112 refresh the pictures at the respective refresh rates when there is no new display data.

As shown in fig. 3I, the first refresh mode is non-immediate refresh, and when the second display data is received in the sixth frame, the sixth frame is taken as the second current frame. And refreshing the first display subarea according to second display information in a next frame of the second current frame, namely a seventh frame, according to a second display instruction (Partition 1 Command), wherein the second display information is PIC3.

FIG. 3J is another schematic diagram of display data refresh according to an embodiment of the present disclosure.

After receiving the second frame synchronization signal sent by the control unit 102, the application processor 103 includes third display information in the sent second display data, where the third display information is display information corresponding to the display area, that is, the whole frame of picture.

The control unit 102 is configured to:

In response to receiving the second display data, acquiring a third current frame corresponding to the second display data; and refreshing the first sub-display area 10111 according to the third display information in the third current frame, and refreshing the second sub-display area 10112 according to the third display information in the next frame of the third current frame.

As shown in fig. 3J, TE1 is a first reference frequency signal, and the corresponding first reference frequency value is 240Hz. TE2 may be considered as a transition frame synchronization signal and TE3 as a second reference frequency signal, which corresponds to a second reference frequency value of 120Hz. The corresponding rows of the display screen show schematic diagrams of the display screen of each frame of the display device 100 (MDL). The row corresponding to the stored data shows the currently stored display data corresponding to each frame in the memory 104 (DISPLAY RAM) for storing display data. Taking the example that the first refresh rate of the first sub display area 10111 (Part 1) is 60Hz and the second refresh rate of the second sub display area 10112 (Part 2) is 40Hz, the rows corresponding to the reference pictures (references) show the reference pictures corresponding to the frames, which refer to the case where the first sub display area 10111 and the second sub display area 10112 refresh the pictures at the respective refresh rates when there is no new display data.

Specifically, as shown in fig. 3J, when the second display data sent by the application processor 103 is received in the sixth frame, and the third display information included in the second display data is a whole frame of picture, the first sub-display area 10111 is refreshed in the sixth frame, the second sub-display area 10112 is refreshed in the seventh frame, and the third display information is PIC4.

Fig. 3K is another schematic diagram of an exemplary display device 100 provided in an embodiment of the disclosure.

The display device 100 further comprises a display driving chip 1, the control unit 102 is arranged in the display driving chip 1, and the display driving chip 1 further comprises a memory 104. The memory 104 is configured to receive display data sent by the application processor 103, and store the display data. The Memory 104 may be a Random Access Memory (Random Access Memory, RAM) or a Static Random Access Memory (SRAM).

The control unit 102 is configured to read the display data from the memory 104 and refresh the first sub-display area 10111 and the second sub-display area 10112 according to the target frame synchronization signal and the display data.

As shown in fig. 3H, the display data is stored in the memory 104 (DISPLAY RAM in the drawing), the control unit 102 reads the display data from the memory, and refreshes the first sub-display area 10111 and the second sub-display area 10112 according to the target frame synchronization signal and the display data, and the display screen of the display device after refreshing is as shown in the drawing.

The embodiment of the disclosure also provides a refreshing method of the display device, which realizes different modes of refreshing on the same display device, and fig. 4 shows a flow diagram of an exemplary method provided by the embodiment of the disclosure. The method 400 may be implemented by the display device 100. As shown in fig. 4, the method 400 may further include the following steps.

Step 401, determining a first refresh mode corresponding to the first sub-display area and a second refresh mode corresponding to the second sub-display area, and determining a corresponding target frame synchronization signal according to the first refresh mode and the second refresh mode.

Step 402, receiving display data based on the target frame synchronization signal.

Step 403, in response to receiving the display data, refreshing the first sub-display area and the second sub-display area according to the target frame synchronization signal and the display data.

In some embodiments, step 401 specifically includes:

Step 4011, determining that the corresponding target frame synchronization signal is a first frame synchronization signal in response to the first refresh mode and the second refresh mode being both immediate refreshes; or alternatively

In step 4012, in response to the first refresh mode and the second refresh mode having non-immediate refresh, determining the corresponding target frame synchronization signal as the second frame synchronization signal.

In some embodiments, the method further comprises:

Step 40A, determining a first refresh mode corresponding to the first sub-display area, a second refresh mode corresponding to the second sub-display area, and a third refresh mode corresponding to the third sub-display area, and determining a corresponding target frame synchronization signal according to the first refresh mode, the second refresh mode, and the third refresh mode.

In some embodiments, step 401 specifically includes:

Step 401A, in response to the first refresh mode being an immediate refresh, and at least one of the second refresh mode and the third refresh mode being an immediate refresh, determining that the corresponding target frame synchronization signal is a first frame synchronization signal; or alternatively

In step 401B, in response to the first refresh mode being an immediate refresh, and the second refresh mode and the third refresh mode being non-immediate refreshes, it is determined that the corresponding target frame synchronization signal is a second frame synchronization signal.

In some embodiments, step 4011 specifically comprises:

Step 40111, obtaining a first refresh rate corresponding to the first sub-display area and a second refresh rate corresponding to the second sub-display area;

Step 40112, determining the first frame synchronization signal according to the first refresh rate and the second refresh rate.

In some embodiments, step 40112 specifically comprises:

Step 401121, obtaining a first reference frequency value corresponding to a preset first reference frequency signal;

step 401122, determining a first refresh time corresponding to a first sub-display area according to the first reference frequency value and the first refresh rate;

Step 401123, determining a second refresh time corresponding to a second sub-display area according to the first reference frequency value and the second refresh rate;

Step 401124, determining a frame corresponding to the first sub-display area and/or the second sub-display area when refreshing is performed as a refresh frame according to the first refresh time and the second refresh time, wherein a frame synchronization signal corresponding to the refresh frame is a first initial frame synchronization signal;

Step 401125, determining an idle frame according to the first refresh time and the second refresh time, wherein a frame synchronization signal corresponding to the idle frame is a second initial frame synchronization signal, and the idle frame is a frame in which none of the plurality of sub-display areas is refreshed;

and step 401126, obtaining a first frame synchronization signal according to the first initial frame synchronization signal and the second initial frame synchronization signal.

In some embodiments, the second initial frame synchronization signal is the same as the first reference frequency signal.

In some embodiments, step 4012 specifically comprises:

In some embodiments, step 403 specifically includes:

Step 4031, in response to receiving the first display data in the idle frame, refreshing the first sub-display area to be refreshed according to the first display information in the idle frame.

Wherein the first display data comprises first display information and a first display instruction,

The first display information includes display information corresponding to the display area, and the first display instruction is configured to determine a first sub-display area to be refreshed corresponding to the first display information from the first sub-display area and the second sub-display area, so that the control unit refreshes the first sub-display area to be refreshed according to the first display information

In some embodiments, step 403 specifically includes:

Step 403A1, receiving the second display data in response to the first refresh mode being an immediate refresh and the second refresh mode being a non-immediate refresh, and determining a first current frame corresponding to the second display data; wherein the second display data includes second display information and a second display instruction,

The second display information is display information corresponding to the first sub-display area or the second sub-display area, and the second display instruction is configured to determine a second sub-display area to be refreshed corresponding to the second display information from the first sub-display area and the second sub-display area, so that the control unit refreshes the second sub-display area to be refreshed according to the second display information

Step 403A2, determining a second sub-display area to be refreshed corresponding to the second display information according to the second display instruction;

Step 403A3, in response to the second sub-display area to be refreshed being the first sub-display area, refreshing the first sub-display area according to the second display information in the first current frame; or alternatively

And step 403A4, in response to the second sub-display area to be refreshed being the second sub-display area, refreshing the second sub-display area according to the second display information in a frame next to the first current frame.

In some embodiments, step 403 specifically includes:

Step 403B1, receiving the second display data in response to the first refresh mode being non-immediate refresh, and determining a second current frame corresponding to the second display data;

And step 403B2, refreshing the second sub-display area to be refreshed according to the second display information in a next frame of the second current frame.

In some embodiments, step 403 specifically includes:

Step 403a1, in response to receiving the second display data, obtaining a third current frame corresponding to the second display data, where the second display data includes third display information, and the third display information is display information corresponding to the display area;

And step 403a2, refreshing the first sub-display area according to the third display information in the third current frame, and refreshing the second sub-display area according to the third display information in a next frame of the third current frame.

In some embodiments, step 403 specifically includes:

And reading the display data from the memory, and refreshing the first sub-display area and the second sub-display area according to the target frame synchronizing signal and the display data.

It should be noted that the method of the embodiments of the present disclosure may be performed by a single device, such as a computer or a server. The method of the embodiment can also be applied to a distributed scene, and is completed by mutually matching a plurality of devices. In the case of such a distributed scenario, one of the devices may perform only one or more steps of the methods of embodiments of the present disclosure, the devices interacting with each other to accomplish the methods.

It should be noted that the foregoing describes some embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

The display device 100 of the foregoing embodiment may be used to implement the corresponding method in any of the foregoing embodiments, so that the method embodiment has the beneficial effects of the corresponding device embodiment, which is not described herein.

Based on the same inventive concept, the present disclosure also provides an electronic device corresponding to the method of any embodiment, including a memory, a processor, and a computer program stored on the memory and capable of running on the processor, where the processor implements the method of refreshing the display device of any embodiment when executing the program.

Fig. 5 shows a more specific hardware architecture of an electronic device according to this embodiment, where the device may include: a processor 1010, a memory 1020, an input/output interface 1030, a communication interface 1040, and a bus 1050. Wherein processor 1010, memory 1020, input/output interface 1030, and communication interface 1040 implement communication connections therebetween within the device via a bus 1050.

The processor 1010 may be implemented by a general-purpose CPU (Central Processing Unit ), a microprocessor, an Application SPECIFIC INTEGRATED Circuit (ASIC), or one or more integrated circuits, etc. for executing related programs to implement the technical solutions provided in the embodiments of the present disclosure.

The Memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory ), static storage, dynamic storage, etc. Memory 1020 may store an operating system and other application programs, and when the embodiments of the present specification are implemented in software or firmware, the associated program code is stored in memory 1020 and executed by processor 1010.

The input/output interface 1030 is used to connect with an input/output module for inputting and outputting information. The input/output module may be configured as a component in a device (not shown) or may be external to the device to provide corresponding functionality. Wherein the input devices may include a keyboard, mouse, touch screen, microphone, various types of sensors, etc., and the output devices may include a display, speaker, vibrator, indicator lights, etc.

Communication interface 1040 is used to connect communication modules (not shown) to enable communication interactions of the present device with other devices. The communication module may implement communication through a wired manner (such as USB, network cable, etc.), or may implement communication through a wireless manner (such as mobile network, WIFI, bluetooth, etc.).

Bus 1050 includes a path for transferring information between components of the device (e.g., processor 1010, memory 1020, input/output interface 1030, and communication interface 1040).

It should be noted that although the above-described device only shows processor 1010, memory 1020, input/output interface 1030, communication interface 1040, and bus 1050, in an implementation, the device may include other components necessary to achieve proper operation. Furthermore, it will be understood by those skilled in the art that the above-described apparatus may include only the components necessary to implement the embodiments of the present description, and not all the components shown in the drawings.

The electronic device of the foregoing embodiment is configured to implement the refresh method of the corresponding display device in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which is not described herein.

Based on the same inventive concept, the present disclosure also provides a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of refreshing a display device according to any of the embodiments above, corresponding to the method of any of the embodiments above.

The computer readable media of the present embodiments, including both permanent and non-permanent, removable and non-removable media, may be used to implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device.

The storage medium of the foregoing embodiments stores computer instructions for causing the computer to execute the method for refreshing the display device according to any one of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which are not described herein.

Based on the same inventive concept, the application also provides a vehicle, which corresponds to the method of any embodiment, and the vehicle comprises the in-vehicle voice interaction device of the embodiment, the electronic equipment of the embodiment, the computer readable storage medium of the embodiment, and the vehicle equipment realizes the refreshing method of the display device of any embodiment.

The vehicle of the foregoing embodiments is used to implement the method for refreshing a display device described in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which are not described herein again.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the disclosure, including the claims, is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined under the idea of the present disclosure, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present disclosure as described above, which are not provided in details for the sake of brevity.

Additionally, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures, in order to simplify the illustration and discussion, and so as not to obscure the embodiments of the present disclosure. Furthermore, the devices may be shown in block diagram form in order to avoid obscuring the embodiments of the present disclosure, and this also accounts for the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform on which the embodiments of the present disclosure are to be implemented (i.e., such specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the disclosure, it should be apparent to one skilled in the art that embodiments of the disclosure can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.

While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

The disclosed embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalents, improvements, and the like, which are within the spirit and principles of the embodiments of the disclosure, are intended to be included within the scope of the disclosure.

Claims

1. A display device, comprising:

a control unit electrically coupled to the display panel and configured to:

receiving display data based on the target frame synchronization signal;

2. The display device according to claim 1, wherein the control unit is configured to:

3. The display device of claim 1, wherein the plurality of sub-display areas further comprises a third sub-display area;

the control unit is configured to:

Determining a first refresh mode corresponding to the first sub-display area, a second refresh mode corresponding to the second sub-display area and a third refresh mode corresponding to the third sub-display area, and determining a corresponding target frame synchronization signal according to the first refresh mode, the second refresh mode and the third refresh mode.

4. A display device according to claim 3, wherein the control unit is configured to:

Determining that a corresponding target frame synchronization signal is a first frame synchronization signal in response to the first refresh mode being an immediate refresh and at least one of the second refresh mode and the third refresh mode being an immediate refresh; or alternatively

5. The display device according to claim 2, wherein the control unit is configured to:

Acquiring a first refresh rate corresponding to a first sub-display area and a second refresh rate corresponding to a second sub-display area;

And determining the first frame synchronization signal according to the first refresh rate and the second refresh rate.

6. The display device according to claim 5, wherein the control unit is configured to:

acquiring a first reference frequency value corresponding to a preset first reference frequency signal;

Determining a first refresh time corresponding to a first sub-display area according to the first reference frequency value and the first refresh rate;

determining a second refreshing time corresponding to a second sub-display area according to the first reference frequency value and the second refreshing rate;

according to the first refreshing time and the second refreshing time, determining a frame corresponding to the first sub-display area and/or the second sub-display area when being refreshed as a refreshing frame, wherein a frame synchronization signal corresponding to the refreshing frame is a first initial frame synchronization signal;

Determining an idle frame according to the first refreshing time and the second refreshing time, wherein a frame synchronization signal corresponding to the idle frame is a second initial frame synchronization signal, and the idle frame is a frame which is not refreshed in all the plurality of sub-display areas;

And obtaining a first frame synchronizing signal according to the first initial frame synchronizing signal and the second initial frame synchronizing signal.

7. The display device of claim 6, wherein the second initial frame synchronization signal is the same as the first reference frequency signal.

8. The display device according to claim 2, wherein the control unit is configured to:

9. The display device of claim 1, further comprising an application processor electrically coupled to the control unit,

The control unit is further configured to send the target frame synchronization signal to the application processor;

The application processor is configured to receive the target frame synchronization signal sent by the control unit and send the display data.

10. The display device of claim 9, wherein the application processor is configured to:

Receiving a first frame synchronizing signal sent by a control unit, determining an idle frame according to the first frame synchronizing signal, and sending first display data to the control unit; or alternatively

And receiving a second frame synchronizing signal sent by the control unit, and sending second display data to the control unit.

11. The display device of claim 10, wherein the first display data includes first display information and first display instructions,

The first display information comprises display information corresponding to the display area, and the first display instruction is used for determining a first sub-display area to be refreshed corresponding to the first display information from the first sub-display area and the second sub-display area so that the control unit refreshes the first sub-display area to be refreshed according to the first display information;

The control unit is configured to:

12. The display device of claim 10, wherein the second display data includes second display information and second display instructions,

The second display information is display information corresponding to the first sub-display area or the second sub-display area, and the second display instruction is used for determining a second sub-display area to be refreshed corresponding to the second display information from the first sub-display area and the second sub-display area, so that the control unit refreshes the second sub-display area to be refreshed according to the second display information;

The control unit is configured to:

Receiving the second display data in response to the first refresh mode being an immediate refresh and the second refresh mode being a non-immediate refresh, determining a first current frame corresponding to the second display data;

Determining a second sub-display area to be refreshed, which corresponds to the second display information, according to the second display instruction;

Responding to the second sub-display area to be refreshed as the first sub-display area, and refreshing the first sub-display area according to the second display information in the first current frame; or alternatively

And responding to the second sub-display area to be refreshed as the second sub-display area, and refreshing the second sub-display area according to the second display information in the next frame of the first current frame.

13. The display device according to claim 12, wherein the control unit is configured to:

Receiving the second display data in response to the first refresh mode being non-immediate refresh, and determining a second current frame corresponding to the second display data;

and refreshing the second sub-display area to be refreshed in the next frame of the second current frame according to the second display information.

14. The display device of claim 10, wherein the second display data comprises third display information,

The third display information is display information corresponding to the display area;

The control unit is configured to:

In response to receiving the second display data, acquiring a third current frame corresponding to the second display data;

And refreshing the first sub-display area according to the third display information in the third current frame, and refreshing the second sub-display area according to the third display information in the next frame of the third current frame.

15. The display device according to claim 1, characterized in that the display device further comprises: the display driving chip is used for displaying the display image,

The display driving chip further includes a memory configured to store the display data;

The control unit is arranged in the display driving chip and is configured to read the display data from the memory and refresh the first sub-display area and the second sub-display area according to the target frame synchronizing signal and the display data.

16. A method of refreshing a display device, characterized by being applied to the display device according to any one of claims 1 to 15, comprising:

receiving display data based on the target frame synchronization signal;

17. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the method of claim 16 when the program is executed.

18. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of claim 16.