WO2023005558A1 - 变频显示方法、ddic、显示屏模组及终端 - Google Patents

变频显示方法、ddic、显示屏模组及终端 Download PDF

Info

Publication number
WO2023005558A1
WO2023005558A1 PCT/CN2022/101623 CN2022101623W WO2023005558A1 WO 2023005558 A1 WO2023005558 A1 WO 2023005558A1 CN 2022101623 W CN2022101623 W CN 2022101623W WO 2023005558 A1 WO2023005558 A1 WO 2023005558A1
Authority
WO
WIPO (PCT)
Prior art keywords
image data
ddic
display
frequency
refresh rate
Prior art date
Application number
PCT/CN2022/101623
Other languages
English (en)
French (fr)
Inventor
王月文
高延凯
蔡辉跃
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2023005558A1 publication Critical patent/WO2023005558A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3265—Power saving in display device
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39—Control of the bit-mapped memory
    • G09G5/393—Arrangements for updating the contents of the bit-mapped memory

Definitions

  • the embodiments of the present application relate to the field of display technology, and in particular to a frequency conversion display method, a display driver integrated circuit chip (Display Driver Integrated Circuit, DDIC), a display screen module, and a terminal.
  • a display driver integrated circuit chip Display Driver Integrated Circuit, DDIC
  • DDIC Display Driver Integrated Circuit
  • AMOLED Active-matrix organic light-emitting diode
  • AP Application Processor
  • PMDDIC-panel Panel
  • Self-luminous feature in related technologies, the AP side calculates the average frame rate over a period of time, so as to control the DDIC to adjust the refresh frequency according to the average frame rate.
  • Embodiments of the present application provide a frequency conversion display method, a DDIC, a display screen module, and a terminal. Described technical scheme is as follows:
  • the embodiment of the present application provides a frequency conversion display method, the method is used for the DDIC of the display screen, and the method includes:
  • an embodiment of the present application provides a DDIC, the DDIC is applied to a display screen, and the DDIC is used for:
  • an embodiment of the present application provides a display screen module, the display screen module includes a display screen and a DDIC, the DDIC is used to drive the display screen, and the DDIC is used to realize the The frequency conversion display method described above.
  • an embodiment of the present application provides a terminal, the terminal includes an AP, a display screen, and a DDIC, and the AP and the DDIC are connected through a Mobile Industry Processor Interface (MIPI),
  • MIPI Mobile Industry Processor Interface
  • the DDIC is used to implement the frequency conversion display method described in the above aspects.
  • Figure 1 is a schematic diagram of the image display process under the AP-DDCI-Panel architecture
  • FIG. 2 is a schematic diagram of an implementation of AP instructing DDIC to adjust the refresh frequency according to the average frame rate in the related art
  • Figure 3 is a schematic diagram of the implementation of DDIC actively adjusting the refresh frequency according to the historical image data transmission parameters of the AP;
  • Fig. 4 shows a flowchart of a frequency conversion display method shown in an exemplary embodiment of the present application
  • FIG. 5 shows a flow chart of a variable frequency display method shown in another exemplary embodiment of the present application
  • Fig. 6 is a schematic diagram of an adaptive frequency conversion process in a dynamic display scene shown in an exemplary embodiment of the present application
  • Fig. 7 is a schematic diagram of an adaptive frequency conversion process in a static display scene shown in an exemplary embodiment of the present application
  • FIG. 8 shows a flow chart of a variable frequency display method shown in another exemplary embodiment of the present application.
  • Fig. 9 is an implementation schematic diagram of a display scene switching process shown in an exemplary embodiment of the present application.
  • Fig. 10 is an implementation schematic diagram of a display scene switching process shown in another exemplary embodiment of the present application.
  • Fig. 11 shows a structural block diagram of a terminal provided by an exemplary embodiment of the present application.
  • the "plurality” mentioned herein means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.
  • the character “/” generally indicates that the contextual objects are an "or” relationship.
  • the AP side first performs layer drawing and rendering through the application (Application, App), and then uses SurfaceFlinger to perform layer synthesis on the drawn layers to obtain image data, and then through MIPI sends image data to display (write) DDIC.
  • the DDIC stores the image data sent by the AP in the buffer (Buffer), and controls the Panel to refresh and display the image (Display) by scanning (reading) the image data in the Buffer.
  • the AP side In a high-refresh-rate display scenario, the AP side generates image data at high frequency, and accordingly, the Panel side performs high-frequency image refresh based on the image data, thereby improving the smoothness of the screen.
  • high frame rate is mainly used in a small number of fast sliding scenes such as desktop sliding and photo album browsing.
  • the purpose is to improve the screen quality when users perform fast sliding operations. fluency.
  • fast sliding takes a relatively small proportion of time in practical applications, and most usage scenarios are still static display, low-speed sliding, and low frame rate video playback scenarios.
  • the image rendering speed on the AP side decreases, while the Panel side still maintains a high refresh rate for image refresh (when the AP side does not send new image data, DDIC will control the Panel to perform a single Frame images are repeatedly displayed), which will not improve the smoothness of the picture, but will increase the power consumption of the display.
  • the AP side uses software to count the number of frames of image data sent by the AP to the DDIC within a period of time, so as to determine the average frame rate within the statistical period according to the number of frames, and then based on the average
  • the frame rate sends a refresh frequency adjustment instruction to the DDIC, so that the DDIC adjusts the refresh frequency based on the instruction.
  • the statistical period is usually set longer for power consumption considerations, such as 1s, that is, the number of frames of image data sent by the AP within 1s is counted, so as to determine the number of frames in 1s. average frame rate.
  • the AP counts that 30 frames of image data have been sent in the last 1 second, so that the average frame rate is determined to be 30 fps.
  • the average frame rate can only reflect the average transmission rate of image data within the statistical period, and cannot reflect the real-time image data transmission of the AP.
  • the average frame rate calculated by the AP has Obvious hysteresis and poor accuracy may easily lead to improper adjustment of the follow-up refresh frequency.
  • the AP sent 30 frames of image data in the first 500 ms (DDIC scans according to the new image data sent by the AP in the first 500 ms), but did not send image data in the next 500 ms ( DDIC performs repeated scans based on the latest frame of image data within the last 500ms), AP determines the average frame rate to be 30fps based on the total number of frames of image data sent within the statistical period of 30 frames, and cannot recognize that the picture in the last 500ms is in a static state. Further, the AP instructs the DDIC to adjust the refresh frequency to 30 Hz based on the average frame rate of 30 fps. However, since the picture is still in the last 500ms (that is, it is in a static display scene), DDIC could have set a lower refresh rate to reduce power consumption, but in practice DDIC still maintains a higher refresh rate, resulting in increased display power consumption.
  • the DDIC determines the historical image data transmission parameters of the AP based on the reception of the historical image data, so as to determine the current display scene based on the parameters. Since the DDIC executes the above process through hardware logic, it can realize frame-by-frame judgment, which helps to improve the real-time and accuracy of judgment of the displayed scene. Furthermore, DDIC determines the target refresh rate based on the current display scene, thereby controlling the display screen to perform image refresh display based on the target refresh rate, and realizing adaptive adjustment of the refresh rate in different display scenes, which not only ensures the image display quality, but also reduces the display power. consumption.
  • the DDIC can make frame-by-frame judgments, after receiving the image data sent by the AP, the DDIC can recognize that the last 500 ms is in a static display scene, so as to set a lower refresh rate (such as 1Hz) for image display and reduce display power consumption.
  • a lower refresh rate such as 1Hz
  • the entire adjustment process is actively executed by the DDIC (not triggered by the frequency conversion command sent by the AP), which simplifies the adjustment process and improves the real-time and accuracy of frequency conversion.
  • the following uses a schematic embodiment for description.
  • FIG. 4 shows a flowchart of a frequency conversion display method according to an exemplary embodiment of the present application. This embodiment is described by taking the method applied to the DDIC of the display screen as an example.
  • the method includes:
  • Step 401 when receiving the nth frame of image data sent by the AP, determine the current display scene based on the historical image data transmission parameters of the AP, which are obtained by the DDIC through statistics on the reception of historical image data.
  • the DDIC judges whether the image data sent by the AP is received frame by frame, so as to determine historical image data sending parameters of the AP according to the receiving situation of the image data. Since DDIC performs frame-by-frame judgment by executing hardware logic, the historical image data transmission parameters determined by DDIC are more accurate than the average frame rate determined by the AP itself through software logic, and can more accurately reflect the real-time content update of the AP. speed.
  • the historical image data transmission parameters are used to represent the real-time content update speed of the AP.
  • the historical image data sending parameter is the interval between the latest sending of image data by the AP and the current moment.
  • every time the DDIC determines that the AP has not sent new image data it updates the sending parameters of the historical image data; and when the DDIC receives new image data sent by the AP, it resets the sending parameters of the historical image data.
  • the historical image data transmission parameter is the frame rate of the AP within the latest preset time period, which is determined by the DDIC according to the reception of image data within the preset time period, and because the DDIC can pass the hardware logic
  • the reception of image data is judged frame by frame, so the preset time length is much shorter than the statistical time length used by the AP to determine the average frame rate.
  • the frame rate can more accurately reflect the real-time content update speed of the AP.
  • the preset duration is 50ms.
  • the DDIC when the DDIC receives the image data sent by the AP, it acquires the currently maintained historical image data sending parameters, so as to determine the current display scene according to the historical image sending parameters, and execute the adaptive frequency conversion logic.
  • the DDIC presets at least two display scenarios, and sets a mapping relationship between different display scenarios and historical image data transmission parameters, where different display scenarios correspond to different content update speeds.
  • the DDIC receives new image data, it determines the current display scene from the above mapping relationship based on the currently maintained historical image data transmission parameters.
  • Step 402 determining a target refresh rate corresponding to the current display scene, where different display scenes correspond to different refresh frequencies.
  • the DDIC After determining the current display scene, the DDIC further determines a target refresh rate suitable for the current display scene from several refresh frequencies.
  • the target refresh rate may be an optimal refresh rate in the current display scene.
  • the optimal refresh rate is a fixed refresh rate, or a dynamically changing refresh rate, and the optimal refresh rate is preset in the DDIC and supports dynamic update.
  • Step 403 controlling the display screen to display images based on the target refresh rate and the nth frame of image data.
  • the DDIC controls the display to display the nth frame of image based on the target refresh rate and the nth frame of image data, wherein the DDIC controls the display to perform frame scanning based on the nth frame of image data;
  • the display screen is controlled to repeatedly display the nth frame of image, that is, the nth frame of image is repeatedly refreshed according to the target refresh rate.
  • the DDIC after the DDIC adjusts the refresh frequency, in order to avoid the impact of the frequency change on the screen display, the DDIC performs parameter adjustment according to the display screen parameters corresponding to the target refresh frequency in the frame register, wherein the adjusted display screen parameters may include Gamma parameters and Demura parameters, which are not limited in this embodiment.
  • the DDIC continues to update the historical image data sending parameters of the AP according to the receiving situation of the image data, so that when the n+1th frame sent by the AP is received For frame image data, the above steps 401 and 402 are performed again to realize the adaptive adjustment of the refresh frequency.
  • DDIC obtains the historical image data sending parameters of the AP by making statistics on the receiving status of the historical image data, so that when receiving the image data sent by the AP, it determines according to the sending parameters of the historical image data The current display scene, and further determine the target refresh rate applicable to the current display scene, and finally control the display screen to display images based on the target refresh rate; using the solution provided by the embodiment of this application, the statistics of the content update speed are performed by the DDIC, because the DDIC Statistics are carried out through hardware logic, so the display scene can be judged frame by frame, and the refresh rate can be adjusted frame by frame, thereby improving the timeliness and accuracy of the refresh rate adjustment; in addition, by setting different refresh rates for different display scenarios, and in When the image data sent by the AP is received, the subsequent refresh frequency is determined based on the judgment result of the display scene, and the adaptive dynamic frequency conversion of the display screen is realized, which helps to reduce the power consumption of the display screen while ensuring the display quality in different display scenes .
  • determine the current display scene based on the historical image data transmission of the AP including:
  • the count value of the counter is used to represent the interval between the n-1th frame of image data and the nth frame of image data;
  • the current display scene is determined based on the count value of the counter, including:
  • the frequency of the AP sending image data in the static display scene is lower than the frequency of the AP sending image data in the dynamic display scene.
  • determine the target refresh rate corresponding to the currently displayed scene including:
  • the target refresh rate is determined as the first refresh rate, and the first refresh rate is the highest refresh rate in the static display scene;
  • the target refresh rate is determined as the second refresh rate, and the second refresh rate is the highest refresh rate in the dynamic display scene.
  • the first refresh rate is higher than the picture update frequency in the static display scene; the second refresh rate matches the picture update frequency in the dynamic display scene.
  • the method further includes:
  • the count value of the counter is updated.
  • the count value of the counter is updated, including:
  • TE signal is used to instruct AP to send image data
  • the count value of the counter is updated.
  • the TE frequency is an integer multiple of the highest refresh rate of the display screen.
  • the method also includes:
  • the display screen is controlled to display images, including:
  • the target refresh rate is the highest refresh rate in the current display scene
  • Methods also include:
  • the target refresh frequency is lowered to the third refresh frequency
  • the display screen is controlled to display images based on the third refresh rate and the nth frame of image data.
  • the third refresh rate is the lowest refresh rate in the current display scene
  • Adjusted the target refresh rate down to the third refresh rate including:
  • the method is used for DDIC of organic light-emitting diode (OLED) display screens in mobile terminals.
  • OLED organic light-emitting diode
  • a counter is set in the DDIC, and the count value of the counter is updated according to the frame-by-frame reception of image data, where the count value of the counter is used to indicate that the AP sends two adjacent frames of images
  • the interval between data the so-called interval is the time interval between adjacent frames, the larger the count value of the counter, the slower the real-time content update speed on the AP side, correspondingly, DDIC needs to reduce the refresh frequency; the smaller the count of the counter , indicating that the faster the real-time content update speed on the AP side is, the DDIC needs to maintain a higher refresh rate accordingly.
  • FIG. 5 shows a flowchart of a variable frequency display method according to another exemplary embodiment of the present application. This embodiment is described by taking the method applied to the DDIC of the display screen as an example.
  • the method includes:
  • Step 501 when the n-1th frame of image data sent by the AP is received, and the nth frame of image data sent by the AP is not received, the count value of the counter is updated.
  • the DDIC In the process of controlling the display screen to display images according to the n-1th frame of image data sent by the AP, the DDIC detects whether the nth frame of image data (that is, new image data) sent by the AP is received, and the DDIC receives the nth frame of image data sent by the AP. In the process of controlling the display screen to display images based on the nth frame of image data, it also detects whether the n+1th frame of image data sent by the AP is received, so as to realize frame by frame detection of image data reception.
  • the DDIC detects whether the nth frame of image data (that is, new image data) sent by the AP is received during the process of displaying the image according to the n-1th frame of image data sent by the AP. If the nth frame of image data is not received, execute steps 501 to 502; if the nth frame of image data is received, execute steps 503 to 507.
  • the AP since the AP may send data other than image data to the DDIC, in the embodiment of this application, when the DDIC receives the data sent by the AP, if it parses that it contains 0x2C, it determines that the data is an image data.
  • the DDIC outputs a TE signal according to the tearing effect (Tearing Effect, TE) frequency (used to instruct the AP to send image data, and the AP listens to the rising edge of the TE signal or the TE signal High level, and when the next frame of image data is ready, it sends the next frame of image data to DDIC), and detects whether the nth frame of image data sent by the AP is received after outputting the TE signal.
  • TE tearing effect
  • the TE frequency is a preset frequency, for example, the preset frequency is 120 Hz or 240 Hz, and the embodiment of the present application does not limit the TE frequency.
  • the TE frequency is greater than the highest refresh rate of the display screen.
  • the TE frequency is an integer multiple of the highest refresh rate of the display screen, for example, the highest refresh rate of the display screen is 120 Hz, and the TE frequency is 360 Hz.
  • the DDIC will update the count value of the counter. For example, after each output of the TE signal, if the nth frame of image data is not received, the DDIC will add one to the count value of the counter, indicating that the interval between the n-1th frame of image data and the nth frame of image data increases. one.
  • the initial count value of the counter is 0.
  • the DDIC controls the display screen to display images based on the image data A, and outputs a TE signal at a frequency of 120 Hz. Since the image data B sent by the AP has not been received after continuously outputting the TE signal for 3 times, the count value of the counter is gradually increased from 0 to 3.
  • the counter has a counting upper limit.
  • the DDIC detects whether the current counting value of the counter reaches the counting limit. count value.
  • the counting upper limit of the counter is 5, after the DDIC receives the image data A sent by the AP, if it has not received the image data B sent by the AP after continuously outputting the TE signal for 5 times, then The count value of the counter remains at 5 and is not updated any more.
  • the counter may not set a counting upper limit, which is not limited in this embodiment.
  • a counting upper limit which is not limited in this embodiment.
  • the DDIC does not receive new image data for a long time after receiving the image data D sent by the AP, and the count value of the counter keeps increasing.
  • Step 502 controlling the display screen to display images based on the current refresh rate and the n-1th frame of image data.
  • the DDIC Since no new image data has been received, the DDIC needs to repeatedly display the n-1th frame of image based on the current refresh rate. In the process of repeatedly displaying the n-1th frame of image, the DDIC continues to detect whether the nth frame of image data is received.
  • step 503 when the nth frame of image data sent by the AP is received, the count value of the counter is obtained, and the count value of the counter is used to represent the interval between the n-1th frame of image data and the nth frame of image data.
  • DDIC can count the interval between two adjacent frames of image data frame by frame, so as to determine the real-time content update speed of the AP based on this interval. Therefore, when receiving the nth frame of image data sent by the AP, DDIC obtains the value of the counter The current count value, so that the refresh frequency can be adaptively adjusted based on the count value, so that the refresh frequency on the DDIC side matches the real-time content update speed on the AP side.
  • the DDIC acquires the count value of the counter.
  • the DDIC when the image data B sent by the AP is received, the DDIC obtains the count value of the counter as 3; when the image data C sent by the AP is received, the DDIC obtains the count value of the counter 3. When receiving the image data D sent by the AP, the DDIC obtains the count value of the counter to be 3.
  • Step 504 determine the currently displayed scene based on the count value of the counter.
  • At least two display scenes are divided in advance based on the interval between adjacent image frames, that is, different display scenes correspond to different content update speeds.
  • the DDIC After obtaining the count value of the counter, the DDIC determines the current display scene according to the count value.
  • the display scene is divided into a static display scene and a dynamic display scene, where the frequency of sending image data by the AP in the static display scene is lower than the frequency of sending image data by the AP in the dynamic display scene.
  • static display scenarios include picture display and text display (the frequency of AP sending image data is usually lower than 20fps), while dynamic display scenarios include video playback and games (frequency of AP sending image data is usually higher than 20fps).
  • the interval corresponding to the static display scene is larger than the interval corresponding to the dynamic display scene.
  • the interval between adjacent image frames is 5 to 12 counting units (counting is performed when the TE frequency is 120Hz); in a dynamic display scene, the interval between adjacent image frames is 1 to 12 count units. 4 counting units.
  • the DDIC divides two display scenarios by setting a count threshold.
  • the count value of the counter is greater than or equal to the count threshold, the DDIC determines that the current display scene is a static display scene; when the count value of the counter is smaller than the count threshold, the DDIC determines that the current display scene is a dynamic display scene.
  • the counting threshold can be preset in the DDIC, and supports dynamic updating.
  • the count threshold is set to 5, that is, when the count value of the counter does not reach 5, the DDIC determines that the current display scene is a dynamic display scene, and when the count value of the counter reaches 5, the DDIC determines that the current display scene is a static display scene.
  • DDIC can also be divided into three or more display scenes, for example, static display scenes (counting value range: >10), partially static display scenes ( Counting value range: 6-10), partial dynamic display scene (counting value range: 3-5), dynamic display scene (counting value range: 0-2), the embodiment of this application does not limit the specific division method of the display scene .
  • Step 505 determining a target refresh rate corresponding to the currently displayed scene.
  • DDIC pre-sets the refresh rate applicable to the display scene. After determining the current display scene, DDIC determines the target refresh rate applicable to the current display scene.
  • the target refresh rate is the best refresh rate in the current display scene, or the target refresh rate is the highest refresh rate in the current display scene (it will be adjusted down based on the highest refresh rate in the future).
  • the DDIC determines the target refresh rate as the first refresh rate; In the case of dynamically displaying the scene, the DDIC determines the target refresh rate as the second refresh rate.
  • the first refresh rate may be the highest refresh rate in a static display scene
  • the second refresh rate may be the highest refresh rate in a dynamic display scene.
  • DDIC Since the content update speed of the AP in the static display scene is slow, in order to reduce the display power consumption, DDIC sets a lower refresh rate for the static display scene, such as 10Hz, 1Hz, etc.; and the content update of the AP in the dynamic display scene Faster. Therefore, in order to improve the fluency of the screen display, DDIC sets a higher refresh rate for dynamic display scenes, such as 60Hz, 30Hz and so on.
  • the first refresh rate is higher than the picture update frequency in the static display scene
  • the second refresh rate is the same as the picture update rate in the dynamic display scene. frequency match.
  • the first refresh rate is an integer multiple of the picture update frequency in a static display scene
  • the second refresh rate is a picture update frequency in a dynamic display scene.
  • the first refresh rate can be set to 120Hz or 60Hz, so as to eliminate smearing by refreshing several frames of images at high frequency; when the picture update frequency in a dynamic display scene is 30fps, The second refresh frequency may be set to 30Hz.
  • the DDIC when the DDIC receives the image data A, B, C, and D, it determines that it is in a dynamic display scene, and determines the refresh frequency as 30Hz; as shown in Figure 7, when the DDIC receives the image data For data A, it is determined to be in a static display scene, and in order to avoid smearing, the refresh frequency is determined to be 120Hz, and multiple frames are refreshed continuously. During the subsequent display process, the refresh frequency is gradually reduced to reduce display power consumption.
  • step 506 the counting value of the counter is cleared.
  • the DDIC needs to perform a clearing operation on the count value of the counter (that is, reset the count to 0), so as to avoid causing damage to the determination of the subsequent display scene. Influence.
  • Step 507 controlling the display screen to display images based on the target refresh rate and the nth frame of image data.
  • the DDIC controls the display screen to display images based on the determined target refresh rate and the image data of the nth frame. Wherein, when the n+1th frame of image data is not received, the DDIC controls the display screen to repeatedly display images according to the target refresh rate.
  • DDIC when image data A is received but no subsequent image data is received, DDIC first displays the image at a refresh rate of 120Hz to avoid smearing in static display scenarios, and then gradually reduces the refresh rate , to reduce display power consumption.
  • the DDIC executes the above steps cyclically to detect whether the n+1th frame of image data is received, which will not be repeated in this embodiment.
  • the display scene by dividing the display scene into a static display scene and a dynamic display scene, and using a counter to count the interval between two adjacent frames of image data, when new image data is received, based on the counting of the counter
  • the relationship between the value and the counting threshold determines the current display scene, and then adjusts the refresh frequency to the target refresh frequency suitable for the current display scene to achieve adaptive frequency conversion; the entire frequency conversion logic is completed by the DDIC without increasing terminal power. consumption, and it can be realized with the help of a counter, the realization process is simple, and it helps to improve the frequency conversion efficiency.
  • DDIC when receiving new image data and judging that it is currently in a static display scene, DDIC first sets a high refresh rate for image refresh display to avoid smearing and help improve the image display quality in static display scenes.
  • the content update speed on the AP side is uncertain, for example, when the video is played, the content update speed on the AP side is reduced from 30fps to 10fps. Therefore, in addition to adaptive frequency conversion when receiving image data, DDIC also needs to In the case that the AP does not send new image data and the update speed of the content drops, adaptive frequency reduction is implemented, thereby reducing display power consumption, and an exemplary embodiment is used for description below.
  • FIG. 8 shows a flowchart of a variable frequency display method according to another exemplary embodiment of the present application. This embodiment is described by taking the method applied to the DDIC of the display screen as an example.
  • the method includes:
  • Step 801 when the n-1th frame of image data sent by the AP is received, and the nth frame of image data sent by the AP is not received, the count value of the counter is updated.
  • Step 802 control the display screen to display images based on the current refresh rate and the n-1th frame of image data.
  • step 803 when the nth frame of image data sent by the AP is received, the count value of the counter is obtained, and the count value of the counter is used to represent the interval between the n-1th frame of image data and the nth frame of image data.
  • Step 804 determine the currently displayed scene based on the count value of the counter.
  • Step 805 determine the target refresh frequency corresponding to the currently displayed scene.
  • steps 801 to 805 For the implementation of steps 801 to 805, reference may be made to the foregoing steps 501 to 505, and details are not repeated in this embodiment.
  • Step 806 Determine the upper limit of refresh frequency maintenance times based on the target refresh frequency.
  • the upper limit of the number of refresh frequency maintenance refers to the upper limit of the number of image refreshes performed by the DDIC based on the current refresh frequency when no new image data is received. Once the upper limit of the number of times is reached, the DDIC needs to perform frequency reduction logic.
  • different refresh frequencies correspond to respective upper limits of refresh frequency maintenance times, and the upper limit of refresh frequency maintenance times can be set based on display characteristics of the display screen at different refresh frequencies.
  • Different refresh frequencies may correspond to the upper limit of the number of maintenance times of the same refresh frequency, or may correspond to the upper limit of the number of maintenance times of different refresh frequencies, which is not limited in this embodiment.
  • the DDIC determines that the refresh frequency is maintained twice based on the target refresh rate of 30 Hz; as shown in Figure 7, in a static display scenario, the DDIC determines based on a target refresh rate of 120 Hz Refresh frequency is maintained at 2 times.
  • step 807 the count value of the counter is cleared.
  • the DDIC needs to determine whether to perform adaptive frequency reduction based on the number of times the current refresh rate has been maintained. If the number of times that has been kept reaches the upper limit of the number of times that the refresh frequency is kept, then it is determined that frequency reduction is required, and the following steps 810 to 811 are performed; Steps 808 to 809 are described below.
  • the DDIC may set a hold count counter for recording the hold count of the current refresh frequency.
  • Step 808 When the n+1 frame of image data sent by the AP is not received, and the number of times held does not reach the upper limit of the refresh frequency, control the display screen to display images based on the target refresh frequency and the nth frame of image data.
  • the DDIC controls the display screen to display images based on the target refresh frequency and the image data of the nth frame.
  • the DDIC after receiving the image data D, the DDIC first performs an image display based on the image data D.
  • the current refresh rate 30Hz has been held for 1 time, and the refresh frequency has not reached the upper limit of 2 times, so DDIC performs image display based on image data D again;
  • DDIC after receiving image data A, DDIC first performs image display based on image data A.
  • DDIC For an image display, when no new image data is received, since the current refresh frequency of 120Hz has been maintained for one time, the upper limit of the refresh frequency for two times has not been reached, so DDIC performs image display based on image data D again.
  • Step 809 updating the kept times.
  • the DDIC adds one to the number of times held.
  • Step 810 when the n+1th frame of image data sent by the AP has not been received, and the number of times held has reached the upper limit of the number of times held by the refresh frequency, lower the target refresh frequency to a third refresh frequency.
  • the DDIC performs adaptive frequency reduction to reduce the target refresh frequency to the third refresh frequency.
  • the target refresh rate is the highest refresh rate in the current display scene, that is, when no new image data is received, the DDIC reduces the refresh rate based on the highest refresh rate in the current display scene , to reduce display power consumption.
  • the DDIC can directly reduce the target refresh rate to the third refresh rate; or, the DDIC can gradually reduce the target refresh rate to the third refresh rate, so as to avoid excessive changes in the refresh rate from affecting the screen display. make an impact.
  • DDIC needs to execute the above-mentioned refresh frequency maintenance process (that is, determine the upper limit of the refresh frequency maintenance times, update the number of times that have been kept, and determine the number of times that have been kept) ), this embodiment will not be repeated here.
  • Step 811 controlling the display screen to display images based on the third refresh rate and the nth frame of image data.
  • the DDIC performs repeated image display based on the lowered third refresh frequency and the image data of the nth frame, and continuously detects whether the next frame of image data is received during the display process.
  • the DDIC may perform an operation of subtracting one from the upper limit of the number of times held by the refresh rate after each image is displayed. Therefore, when the upper limit of refresh frequency maintenance times reaches 0, adaptive frequency reduction is performed, which is not limited in this embodiment. For example, when the upper limit of refresh frequency maintenance times is 2 times, after the first image is displayed, DDIC will update the upper limit of refresh frequency maintenance times to 1 time, and after the second image is displayed, DDIC will update the upper limit of refresh frequency maintenance times to 0 times , and perform adaptive frequency reduction.
  • the kept count is updated after each image display, so that when the kept count reaches the refresh frequency
  • adaptive frequency reduction is triggered to match the refresh rate on the DDIC side with the content update rate on the AP side, further reducing display power consumption.
  • the adaptive frequency conversion process in a single display scene is described, and the following exemplary embodiments are used to describe the switching process of different display scenes.
  • the DDIC when the DDIC receives the image data A, B, and C sent by the AP, based on the count value and the count threshold of the counter, it determines that the current display scene is a dynamic scene, so that the image is refreshed and displayed at a refresh rate of 30 Hz.
  • the DDIC executes frequency reduction logic to reduce the refresh frequency.
  • the DDIC determines that the current display scene is a static display scene, thereby setting the refresh frequency to 120Hz, and Keep the upper limit of 2 times according to the refresh frequency, and reduce the refresh frequency step by step.
  • the DDIC when the DDIC receives the image data A sent by the AP, it first enters the static display scene, refreshes and displays the image at a refresh rate of 120 Hz, and executes the down-frequency logic when the number of times it has been held reaches 2 times.
  • the frequency is reduced to 30Hz
  • the DDIC receives the image data B sent by the AP. Since the count value of the counter reaches the count threshold of 5, the DDIC determines that the current display scene is still a static display scene, and refreshes and displays the image at a refresh rate of 120Hz.
  • the frequency reduction logic is executed.
  • the DDIC receives the image data C sent by the AP.
  • the DDIC determines that the current display scene has changed to a dynamic display scene, thus setting the refresh rate to It is 30Hz, and the image is refreshed and displayed twice according to the upper limit of the refresh frequency (because the image data D is received before the count value reaches 5, there is no need to repeatedly refresh the image).
  • the method provided by the embodiment of the present application is applied to a mobile terminal, that is, the DDIC of the OLED display in the mobile terminal executes the above frequency conversion display method. Since the mobile terminal is usually powered by a battery, and the power of the battery is limited (it is relatively sensitive to power consumption), after applying the method provided by the embodiment of the present application to the mobile terminal, it can reduce the display quality of the mobile terminal while improving the display quality of the mobile terminal. power consumption.
  • the mobile terminal may include a smart phone, a tablet computer, a wearable device (such as a smart watch), a portable personal computer, etc., and the embodiment of the present application does not limit the specific type of the mobile terminal.
  • the method provided in the embodiment of the present application may also be used in other non-battery-powered terminals, such as a TV, a monitor, or a personal computer, which is not limited in the embodiment of the present application.
  • the embodiment of the present application also provides a DDIC, the DDIC is applied to a display screen, and the DDIC is used for:
  • the DDIC is used for:
  • the count value of the counter is used to represent the interval between the n-1th frame of image data and the nth frame of image data;
  • the count value of the counter is cleared.
  • the DDIC is used for:
  • the frequency of the AP sending image data in the static display scene is lower than the frequency of the AP sending image data in the dynamic display scene.
  • the DDIC is used for:
  • the target refresh rate is the highest refresh rate in the static display scene
  • the target refresh rate is determined as a second refresh rate, and the second refresh rate is the highest refresh rate in the dynamic display scene.
  • the first refresh frequency is higher than the picture update frequency in the static display scene; the second refresh frequency matches the picture update frequency in the dynamic display scene.
  • the DDIC is also used for:
  • the count value of the counter is updated.
  • the DDIC is used for:
  • the count value of the counter is updated.
  • the TE frequency is an integer multiple of the highest refresh rate of the display screen.
  • the DDIC is also used for:
  • control display based on the target refresh frequency and the nth frame of image data screen for image display;
  • the held count is updated.
  • the target refresh rate is the highest refresh rate in the current display scene
  • the DDIC is also used for:
  • the third refresh rate is the lowest refresh rate in the current display scene
  • the DDIC for:
  • the target refresh rate is gradually lowered to the third refresh rate.
  • the DDIC is a DDIC of an OLED display screen in a mobile terminal.
  • the embodiment of the present application also provides a display screen module, the display screen module includes a display screen and a DDIC, the DDIC is used to drive the display screen, and the DDIC is used to implement the frequency conversion display method provided by the above method embodiments.
  • FIG. 11 shows a structural block diagram of a terminal 1100 provided by an exemplary embodiment of the present application.
  • the terminal 1100 may be a smart phone, a tablet computer, a notebook computer, and the like.
  • the terminal 1100 in this application may include one or more of the following components: a processor 1110 , a memory 1120 , and a display screen module 1130 .
  • the processor 1110 may include one or more processing cores, and the processor 1110 may be the AP described in the foregoing embodiments.
  • the processor 1110 uses various interfaces and lines to connect various parts of the entire terminal 1100, and executes the terminal by running or executing instructions, programs, code sets or instruction sets stored in the memory 1120, and calling data stored in the memory 1120. 1100 various functions and processing data.
  • the processor 1110 may adopt at least one of Digital Signal Processing (Digital Signal Processing, DSP), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and Programmable Logic Array (Programmable Logic Array, PLA). implemented in the form of hardware.
  • DSP Digital Signal Processing
  • FPGA Field-Programmable Gate Array
  • PLA Programmable Logic Array
  • the processor 1110 can integrate one or more of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), a neural network processor (Neural-network Processing Unit, NPU) and a modem, etc.
  • a central processing unit Central Processing Unit, CPU
  • an image processor Graphics Processing Unit, GPU
  • a neural network processor Neural-network Processing Unit, NPU
  • the CPU mainly processes the operating system, user interface and application programs, etc.
  • the GPU is used for rendering and drawing the content that the touch display module 1130 needs to display
  • the NPU is used to realize the artificial intelligence (Artificial Intelligence, AI) function
  • the modem Used to handle wireless communications. It can be understood that, the above-mentioned modem may not be integrated into the processor 1110, but may be implemented by a single chip.
  • the memory 1120 may include a random access memory (Random Access Memory, RAM), and may also include a read-only memory (Read-Only Memory, ROM).
  • the memory 1120 includes a non-transitory computer-readable storage medium.
  • the memory 1120 may be used to store instructions, programs, codes, sets of codes, or sets of instructions.
  • the memory 1120 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), Instructions and the like for implementing various method embodiments of the present application; the storage data area may store data created according to the use of the terminal 1100 (such as audio data, phone book) and the like.
  • the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), Instructions and the like for implementing various method embodiments of the present application; the storage data area may store data created according to the use of the terminal 1100 (such as audio data, phone book) and the like.
  • the display screen module 1130 is a display component for displaying images, and is usually arranged on the front panel of the terminal 1100 .
  • the display module 1130 can be designed as a full screen, a curved screen, a special-shaped screen, a double-sided screen or a folding screen.
  • the display screen module 1130 can also be designed as a combination of a full screen and a curved screen, or a combination of a special-shaped screen and a curved screen, which is not limited in this embodiment.
  • the display screen module 1130 includes a DDIC 1131 and a display screen 1132 (panel).
  • the display screen 1132 may be an OLED display screen, which may be a low temperature polysilicon (Low Temperature Poly-Silicon, LTPS) AMOLED display screen or a low temperature polycrystalline oxide (Low Temperature Polycrystalline Oxide, LTPO) AMOLED display screen.
  • the DDIC1131 is used to drive the display screen 1132 to display images, and the DDIC1131 is used to implement the frequency conversion display methods provided by the above-mentioned embodiments.
  • the DDIC 1131 is connected to the processor 1110 through a MIPI interface, and is used for receiving image data and instructions issued by the processor 1110 .
  • the display screen module 1130 also has a touch function, through which a user can use any suitable object such as a finger or a touch pen to perform touch operations on the display screen module 1130 .
  • the structure of the terminal 1100 shown in the above drawings does not constitute a limitation on the terminal 1100, and the terminal may include more or less components than those shown in the figure, or combine some components, or different component arrangements.
  • the terminal 1100 also includes components such as a microphone, a speaker, a radio frequency circuit, an input unit, a sensor, an audio circuit, a wireless fidelity (Wireless Fidelity, WiFi) module, a power supply, and a bluetooth module, which will not be repeated here.
  • the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof.
  • the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media may be any available media that can be accessed by a general purpose or special purpose computer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种变频显示方法、DDIC、显示屏模组及终端。方法包括：在接收到AP发送的第n帧图像数据的情况下，基于AP的历史图像数据发送参数，确定当前显示场景，历史图像数据发送参数由DDIC通过统计历史图像数据的接收情况统计得到(401)；确定当前显示场景对应的目标刷新频率，其中，不同显示场景对应不同刷新频率(402)；基于目标刷新频率以及第n帧图像数据控制显示屏进行图像显示(403)。采用本申请实施例提供的方案，内容更新速度的统计交由DDIC执行，由于DDIC是通过硬件逻辑进行统计，因此可以实现逐帧判断显示场景，并逐帧调整刷新频率，从而提高刷新频率的调整及时性和准确性。

Description

变频显示方法、DDIC、显示屏模组及终端
本申请要求于2021年7月30日提交的申请号为202110869095.0、发明名称为“变频显示方法、DDIC、显示屏模组及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及显示技术领域，特别涉及一种变频显示方法、显示驱动电路芯片(Display Driver Integrated Circuit，DDIC)、显示屏模组及终端。
背景技术
随着显示屏技术的不断发展，越来越多能够支持高刷新率显示的显示屏应运而生，在运行高帧率应用程序或在滑动操作过程中，通过将显示屏设置为高刷新率模式能够提高画面的流畅度。
对于主动矩阵有机发光二极体(Active-Matrix Organic Light-Emitting Diode，AMOLED)显示屏，受限于应用处理器(Application Processor，AP)-DDIC-面板(Panel)的驱动架构以及AMOLED显示屏的自发光特点，相关技术中，AP端计算一段时间内的平均帧率，从而根据平均帧率控制DDIC调整刷新频率。
发明内容
本申请实施例提供了一种变频显示方法、DDIC、显示屏模组及终端。所述技术方案如下：
一方面，本申请实施例提供了一种变频显示方法，所述方法用于显示屏的DDIC，所述方法包括：
在接收到AP发送的第n帧图像数据的情况下，基于所述AP的历史图像数据发送参数，确定当前显示场景，所述历史图像数据发送参数由所述DDIC通过统计历史图像数据的接收情况得到；
确定所述当前显示场景对应的目标刷新频率，其中，不同显示场景对应不同刷新频率；
基于所述目标刷新频率以及所述第n帧图像数据控制显示屏进行图像显示。
另一方面，本申请实施例提供了一种DDIC，所述DDIC应用于显示屏，所述DDIC用于：
在接收到AP发送的第n帧图像数据的情况下，基于所述AP的历史图像数据发送参数，确定当前显示场景，所述历史图像数据发送参数由所述DDIC通过统计历史图像数据的接收情况得到；
确定所述当前显示场景对应的目标刷新频率，其中，不同显示场景对应不同刷新频率；
基于所述目标刷新频率以及所述第n帧图像数据控制显示屏进行图像显示。
另一方面，本申请实施例提供了一种显示屏模组，所述显示屏模组包括显示屏和DDIC，所述DDIC用于驱动所述显示屏，所述DDIC用于实现如上述方 面所述的变频显示方法。
另一方面，本申请实施例提供了一种终端，所述终端包括AP、显示屏和DDIC，所述AP与所述DDIC之间通过移动产业处理器接口(Mobile Industry Processor Interface，MIPI)相连，所述DDIC用于实现如上述方面所述的变频显示方法。
附图说明
图1是AP-DDCI-Panel架构下图像显示过程的示意图；
图2是相关技术中AP根据平均帧率指示DDIC调整刷新频率的实施示意图；
图3是DDIC根据AP的历史图像数据发送参数主动调整刷新频率的实施示意图；
图4示出了本申请一个示例性实施例示出的变频显示方法的流程图；
图5示出了本申请另一个示例性实施例示出的变频显示方法的流程图；
图6是本申请一个示例性实施例示出的动态显示场景下自适应变频过程的示意图；
图7是本申请一个示例性实施例示出的静态显示场景下自适应变频过程的示意图；
图8示出了本申请另一个示例性实施例示出的变频显示方法的流程图；
图9是本申请一个示例性实施例示出的显示场景切换过程的实施示意图；
图10是本申请另一个示例性实施例示出的显示场景切换过程的实施示意图；
图11示出了本申请一个示例性实施例提供的终端的结构方框图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
在本文中提及的“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
如图1所示，AP-DDIC-Panel架构下，AP侧首先通过应用程序(Application，App)进行图层绘制渲染，然后通过SurfaceFlinger对绘制得到的图层进行图层合成得到图像数据，进而通过MIPI将图像数据送显(写入)DDIC。DDIC将AP送显的图像数据存储在缓存器(Buffer)中，并通过扫描(读取)Buffer中的图像数据，控制Panel进行图像刷新显示(Display)。在高刷新率显示场景下，AP侧高频生成图像数据，相应的，Panel侧根据图像数据进行高频图像刷新，从而提高画面的流畅度。
在实际应用过程中，除了需要在高帧率游戏内实现高刷新率外，高帧率主要应用在桌面滑动、相册浏览等少量快速滑动场景，其目的是为了提高用户执行快速滑动操作时画面的流畅度。然而，快速滑动在实际应用中所占的时间比 例较小，大多数使用场景仍旧是静态显示、低速滑动以及低帧率视频播放场景。在上述使用场景下，AP侧的图像渲染速度降低，而Panel侧仍旧保持高刷新率进行图像刷新(当AP侧未发送新的图像数据时，DDIC会根据最近收到的图像数据控制Panel进行单帧图像重复显示)，并不会提升画面的流畅度，反而会增加显示屏的功耗。
相关技术中，为了降低高刷新率显示屏的功耗，AP端通过软件统计一段时间内AP向DDIC发送的图像数据的帧数，从而根据帧数确定统计时段内的平均帧率，进而基于平均帧率向DDIC发送刷新频率调整指令，以便DDIC基于指令调整刷新频率。
由于AP端执行软件逻辑时需要占用一定的处理资源，因此出于功耗层面的考虑，统计时段通常被设置较长，比如1s，即统计1s内AP发送图像数据的帧数，从而确定1s内的平均帧率。在一个示意性的例子中，AP统计到最近1s内发送了30帧图像数据，从而确定平均帧率为30fps。
然而，平均帧率仅能够反映出统计时段内图像数据的平均发送速率，并不能反映出AP实时的图像数据发送情况，尤其是在统计时段较长的情况下，AP计算得到的平均帧率存在明显的滞后性，且准确性较差，容易造成后续刷新频率调整不当。
示意性的，如图2所示，统计时段内，AP在前500ms发送了30帧图像数据(DDIC在前500ms内根据AP发送的新图像数据进行扫描)，而在后500ms未发送图像数据(DDIC在后500ms内根据最近一帧图像数据进行重复扫描)，AP基于统计时段内发送的图像数据总帧数30帧，确定平均帧率为30fps，无法识别出后500ms画面处于静止状态。进一步的，AP基于平均帧率30fps指示DDIC将刷新频率调整为30Hz。然而，由于后500ms画面静止(即处于静态显示场景)，因此DDIC本可以设置更低的刷新频率以降低功耗，但实际情况下DDIC仍旧保持较高的刷新频率，导致显示功耗增加。
为了解决上述技术问题，本申请实施例提供的变频显示方法中，由DDIC基于历史图像数据的接收情况，确定AP的历史图像数据发送参数，从而基于该参数确定当前显示场景。由于DDIC通过硬件逻辑执行上述流程，因此能够实现逐帧判定，有助于提高显示场景的判定实时性以及准确性。进一步的，DDIC基于当前显示场景确定目标刷新频率，从而基于目标刷新频率控制显示屏进行图像刷新显示，实现不同显示场景下刷新频率的自适应调整，既保证了图像显示质量，又能够降低显示功耗。
将本申请实施例提供的方案应用于上述示意性的场景时，如图3所示，由于DDIC能够进行逐帧判定，因此DDIC接收到AP发送的图像数据后，能够识别出最近500ms处于静态显示场景，从而设置较低的刷新频率(比如1Hz)进行图像显示，降低显示功耗。
整个调整过程均由DDIC主动执行(并非由AP发送的变频指令触发)，简化了调整流程，并提高了变频的实时性和准确性。下面采用示意性的实施例进行说明。
请参考图4，其示出了本申请一个示例性实施例示出的变频显示方法的流程图。本实施例以该方法应用于显示屏的DDIC来举例说明。该方法包括：
步骤401，在接收到AP发送的第n帧图像数据的情况下，基于AP的历史图像数据发送参数，确定当前显示场景，历史图像数据发送参数由DDIC通过统计历史图像数据的接收情况得到。
在一种可能的实施方式中，DDIC逐帧判断是否接收到AP发送的图像数据，从而根据图像数据的接收情况，确定出AP的历史图像数据发送参数。由于DDIC通过执行硬件逻辑进行逐帧判断，因此DDIC确定出的历史图像数据发送参数相较于AP自身通过软件逻辑确定出的平均帧率更加准确，且更加能够准确地反映出AP实时的内容更新速度。
本申请实施例中，历史图像数据发送参数用于表征AP实时的内容更新速度。在一些实施例中，该历史图像数据发送参数为AP最近一次发送图像数据与当前时刻之间的间隔。相应的，DDIC每次判断出AP未发送新图像数据时，即对历史图像数据发送参数进行更新；而当DDIC接收到AP发送的新图像数据时，即对历史图像数据发送参数进行重置。
在另一些实施例中，该历史图像数据发送参数是AP在最近预设时长内的帧率，该帧率由DDIC根据预设时长内图像数据的接收情况确定得到，且由于DDIC能够通过硬件逻辑逐帧判断图像数据的接收情况，因此该预设时长远小于AP确定平均帧率时采用的统计时长，相应的，该帧率能够更加准确反映出AP实时的内容更新速度。比如，该预设时长为50ms。
可选的，DDIC在接收到AP发送的图像数据时，获取当前维护的历史图像数据发送参数，从而根据该历史图像发送参数确定当前显示场景，执行自适应变频逻辑。
在一种可能的实施方式中，DDIC预先设置至少两种显示场景，并设置不同显示场景与历史图像数据发送参数之间的映射关系，其中，不同显示场景对应不同的内容更新速度。DDIC接收到新的图像数据时，基于当前维护的历史图像数据发送参数，从上述映射关系中确定出当前显示场景。关于显示场景的具体类型，下述实施例将进行详述。
步骤402，确定当前显示场景对应的目标刷新频率，其中，不同显示场景对应不同刷新频率。
在一种可能的实施方式中，针对不同显示场景设置有不同刷新频率。确定出当前显示场景后，DDIC进一步从若干刷新频率中确定出适用于当前显示场景的目标刷新频率。
在一些实施例中，目标刷新频率可以是当前显示场景下的最佳刷新频率。可选的，该最佳刷新率为固定刷新频率，或者，动态变化的刷新频率，该最佳刷新频率预先设置在DDIC中，且支持动态更新。
步骤403，基于目标刷新频率以及第n帧图像数据控制显示屏进行图像显示。
进一步的，DDIC基于目标刷新频率以及第n帧图像数据，控制显示屏显示第n帧图像，其中，DDIC基于第n帧图像数据控制显示屏进行帧扫描；完成帧 扫描后，在未接收到AP发送的第n+1帧图像数据的情况下，基于目标刷新频率，控制显示屏重复显示第n帧图像，即根据目标刷新频率对第n帧图像进行重复刷新。
在一些实施例中，DDIC调整刷新频率后，为了避免频率变化对画面显示造成影响，DDIC根据帧寄存器中目标刷新频率对应的显示屏参数进行参数调整，其中，调整的显示屏参数可以包括Gamma参数和Demura参数，本实施例对此不作限定。
在基于目标刷新频率以及第n帧图像数据控制显示屏进行图像显示的过程中，DDIC继续根据图像数据的接收情况，更新AP的历史图像数据发送参数，从而在接收到AP发送的第n+1帧图像数据时，再次执行上述步骤401和402，实现刷新频率的自适应调整。
综上所述，本申请实施例中，DDIC通过对历史图像数据的接收情况进行统计，得到AP的历史图像数据发送参数，从而在接收到AP发送的图像数据时，根据历史图像数据发送参数确定当前显示场景，并进一步确定适用于当前显示场景的目标刷新频率，最终基于目标刷新频率控制显示屏进行图像显示；采用本申请实施例提供的方案，内容更新速度的统计交由DDIC执行，由于DDIC是通过硬件逻辑进行统计，因此可以实现逐帧判断显示场景，并逐帧调整刷新频率，从而提高刷新频率的调整及时性和准确性；此外，通过为不同显示场景设置不同的刷新频率，并在接收到AP发送的图像数据时，基于显示场景判定结果确定后续采用的刷新频率，实现显示屏的自适应动态变频，在保证不同显示场景下显示质量的同时，有助于降低显示屏的功耗。
可选的，基于AP的历史图像数据发送情况，确定当前显示场景，包括：
获取计数器的计数值，计数器的计数值用于表征第n-1帧图像数据与第n帧图像数据之间的间隔；
基于计数器的计数值确定当前显示场景；
对计数器的计数值进行清零操作。
可选的，基于计数器的计数值确定当前显示场景，包括：
在计数器的计数值大于或等于计数阈值的情况下，确定当前显示场景为静态显示场景；
在计数器的计数值小于计数阈值的情况下，确定当前显示场景为动态显示场景；
其中，静态显示场景下AP发送图像数据的频率低于动态显示场景下AP发送图像数据的频率。
可选的，确定当前显示场景对应的目标刷新频率，包括：
在当前显示场景为静态显示场景的情况下，将目标刷新频率确定为第一刷新频率，第一刷新频率为静态显示场景下的最高刷新频率；
在当前显示场景为动态显示场景的情况下，将目标刷新频率确定为第二刷新频率，第二刷新频率为动态显示场景下的最高刷新频率。
可选的，第一刷新频率高于静态显示场景下的画面更新频率；第二刷新频 率与动态显示场景下的画面更新频率匹配。
可选的，在接收到AP发送的第n帧图像数据的情况下，基于AP的历史图像数据发送参数，确定当前显示场景之前，方法还包括：
在接收到AP发送的第n-1帧图像数据，且未接收到AP发送的第n帧图像数据的情况下，更新计数器的计数值。
可选的，在未接收到AP发送的第n帧图像数据的情况下，更新计数器的计数值，包括：
基于撕裂效应TE频率输出TE信号，TE信号用于指示AP发送图像数据；
在输出TE信号后，未接收到AP发送的第n帧图像数据的情况下，更新计数器的计数值。
可选的，TE频率为显示屏的最高刷新频率的整数倍。
可选的，方法还包括：
基于目标刷新频率确定刷新频率保持次数上限；
基于目标刷新频率以及第n帧图像数据控制显示屏进行图像显示，包括：
在未接收到AP发送的第n+1帧图像数据，且已保持次数未达到刷新频率保持次数上限的情况下，基于目标刷新频率以及第n帧图像数据控制显示屏进行图像显示；
更新已保持次数。
可选的，目标刷新频率为当前显示场景下的最高刷新频率；
方法还包括：
在未接收到AP发送的第n+1帧图像数据，且已保持次数达到刷新频率保持次数上限的情况下，将目标刷新频率下调为第三刷新频率；
基于第三刷新频率以及第n帧图像数据控制显示屏进行图像显示。
可选的，第三刷新频率为当前显示场景下的最低刷新频率；
将目标刷新频率下调为第三刷新频率，包括：
将目标刷新频率逐级下调为第三刷新频率。
可选的，方法用于移动终端中有机发光二极体OLED显示屏的DDIC。
在一种可能的实施方式中，DDIC中设置有计数器，并根据图像数据的逐帧接收情况，对计数器的计数值进行更新，其中，该计数器的计数值用于表征AP发送相邻两帧图像数据之间的间隔，所谓间隔就是相邻帧之间的时间间隔，计数器的计数值越大，表明AP侧的实时内容更新速度越慢，相应的，DDIC需要降低刷新频率；计数器的计数越小，表明AP侧的实时内容更新速度越快，相应的，DDIC需要保持较高的刷新频率。下面采用示例性的实施例进行说明。
请参考图5，其示出了本申请另一个示例性实施例示出的变频显示方法的流程图。本实施例以该方法应用于显示屏的DDIC来举例说明。该方法包括：
步骤501，在接收到AP发送的第n-1帧图像数据，且未接收到AP发送的第n帧图像数据的情况下，更新计数器的计数值。
DDIC根据AP发送的第n-1帧图像数据控制显示屏进行图像显示的过程中，检测是否接收到AP发送的第n帧图像数据(即新的图像数据)，在DDIC接收 AP发送的第n帧图像数据，并基于第n帧图像数据控制显示屏进行图像显示的过程中，又检测是否接收到AP发送的第n+1帧图像数据，从而实现图像数据接收情况的逐帧检测。
在一种可能的实施方式中，DDIC根据AP发送的第n-1帧图像数据进行图像显示的过程中，检测是否接收到AP发送的第n帧图像数据(即新的图像数据)。若未接收到第n帧图像数据，则执行步骤501至502；若接收到第n帧图像数据，则执行步骤503至507。
在一些实施例中，由于AP可能会向DDIC发送除图像数据以外的数据，因此本申请实施例中，当DDIC接收到AP发送的数据后，若解析到其中包含0x2C，则确定该数据为图像数据。
关于检测的具体方式，在一种可能的实施方式中，DDIC按照撕裂效应(Tearing Effect，TE)频率输出TE信号(用于指示AP发送图像数据，AP在监听到TE信号上升沿或TE信号高电平，且准备好下一帧图像数据时，即向DDIC发送下一帧图像数据)，并检测输出TE信号后是否接收到AP发送的第n帧图像数据。
其中，该TE频率为预设频率，比如，该预设频率为120Hz或240Hz，本申请实施例并不对TE频率进行限定。在一些实施例中，该TE频率大于显示屏的最高刷新频率。可选的，TE频率为显示屏的最高刷新频率的整数倍，比如，显示屏的最高刷新率为120Hz，该TE频率为360Hz。
若在输出TE信号后未接收到AP发送的第n帧图像数据，DDIC则更新计数器的计数值。比如，每次输出TE信号后，若未接收到第n帧图像数据，DDIC则对计数器的计数值进行加一操作，表示第n-1帧图像数据与第n帧图像数据之间的间隔加一。
示意性的，如图6所示，计数器的初始计数值为0，DDIC接收到AP发送的图像数据A后，基于图像数据A控制显示屏进行图像显示，并按照120Hz的频率输出TE信号。由于在连续输出3次TE信号后仍未接收到AP发送的图像数据B，因此计数器的计数值由0逐渐增加至3。
在一些实施例中，计数器具有计数上限，当需要对计数器的计数值进行更新时，DDIC检测计数器的当前计数值是否达到计数上限，若达到，则保持当前计数值，若未达到，则更新当前计数值。示意性的，如图7所示，当计数器的计数上限为5时，DDIC接收到AP发送的图像数据A后，若连续输出5次TE信号后仍未接收到AP发送的图像数据B，则计数器的计数值保持为5，并不再更新。
当然，在另一些实施例中，计数器也可以不设置计数上限，本实施例对此不作限定。示意性的，如图6所示，当计数器不存在计数上限时，DDIC接收到AP发送的图像数据D后长时间未接收到新的图像数据，计数器的计数值不断增加。
步骤502，基于当前刷新频率以及第n-1帧图像数据控制显示屏进行图像显示。
由于未接收到新的图像数据，因此DDIC需要基于当前刷新频率重复显示第n-1帧图像。在重复显示第n-1帧图像的过程中，DDIC继续检测是否接收到第n帧图像数据。
步骤503，在接收到AP发送的第n帧图像数据的情况下，获取计数器的计数值，计数器的计数值用于表征第n-1帧图像数据与第n帧图像数据之间的间隔。
通过设置计数器，DDIC能够逐帧统计相邻两帧图像数据之间的间隔，从而基于该间隔确定AP的实时内容更新速度，因此当接收到AP发送的第n帧图像数据时，DDIC获取计数器的当前计数值，以便后续基于该计数值自适应调整刷新频率，使DDIC侧的刷新频率与AP侧的实时内容更新速度相匹配。
在一种可能的实施方式中，若在输出TE信号后接收到AP发送的第n帧图像数据，DDIC则获取计数器的计数值。
示意性的，如图6所示，当接收到AP发送的图像数据B时，DDIC获取到计数器的计数值为3；当接收到AP发送的图像数据C时，DDIC获取到计数器的计数值为3；当接收到AP发送的图像数据D时，DDIC获取到计数器的计数值为3。
步骤504，基于计数器的计数值确定当前显示场景。
本实施例中，预先基于相邻图像帧之间的间隔划分出至少两种显示场景，即不同显示场景对应不同内容更新速度。获取的计数器的计数值后，DDIC即根据该计数值确定当前显示场景。
在一种可能的实施方式中，显示场景被划分为静态显示场景和动态显示场景，其中，静态显示场景下AP发送图像数据的频率低于动态显示场景下AP发送图像数据的频率。比如，静态显示场景为图片显示、文本显示等场景(AP发送图像数据的频率通常低于20fps)，而动态显示场景为视频播放、游戏等场景(AP发送图像数据的频率通常高于20fps)。
相应的，静态显示场景对应的间隔大于动态显示场景对应的间隔。例如，静态显示场景下，相邻图像帧之间间隔为5到12个计数单位(在TE频率为120Hz的情况下进行计数)；动态显示场景下，相邻图像帧之间的间隔为1到4个计数单位。
可选的，DDIC通过设置计数阈值划分两种显示场景。在计数器的计数值大于或等于计数阈值的情况下，DDIC确定当前显示场景为静态显示场景；在计数器的计数值小于计数阈值的情况下，DDIC确定当前显示场景为动态显示场景。
其中，该计数阈值可以预先设置在DDIC中，且支持动态更新。
比如，该计数阈值被设置为5，即当计数器的计数值未达到5时，DDIC确定当前显示场景为动态显示场景，当计数器的计数值达到5时，DDIC确定当前显示场景为静态显示场景。
示意性的，如图6所示，接收到AP发送的图像数据B、C、D时，由于计数器的计数值为3＜计数阈值5，因此DDIC确定当前显示场景为动态显示场景；如图7所示，接收到AP发送的图像数据A时，由于计数器的计数值为5＝计数阈值5，因此DDIC确定当前显示场景为静态显示场景。
当然，除了划分为两个显示场景外，在其他可能的实施方式中，DDIC还可以划分出三个及以上显示场景，比如，静态显示场景(计数值范围：＞10)、偏静态显示场景(计数值范围：6-10)、偏动态显示场景(计数值范围：3-5)、动态显示场景(计数值范围：0-2)，本申请实施例并不对显示场景的具体划分方式进行限定。
步骤505，确定当前显示场景对应的目标刷新频率。
针对不同的显示场景，DDIC预先设置适用于该显示场景的刷新频率，确定出当前显示场景后，DDIC即确定适用于当前显示场景的目标刷新频率。
可选的，该目标刷新频率为当前显示场景下的最佳刷新频率，或者，该目标刷新频率为当前显示场景下的最高刷新频率(后续会在最高刷新频率的基础上下调)。
在一种可能的实施方式中，当显示场景包括静态显示场景和动态显示场景时，在当前显示场景为静态显示场景的情况下，DDIC将目标刷新频率确定为第一刷新频率；在当前显示场景为动态显示场景的情况下，DDIC将目标刷新频率确定为第二刷新频率。其中，第一刷新频率可以是静态显示场景下的最高刷新频率，第二刷新率为动态显示场景下的最高刷新频率。
由于静态显示场景下AP进行内容更新的速度较慢，因此为了降低显示功耗，DDIC为静态显示场景设置较低的刷新频率，比如10Hz，1Hz等等；而动态显示场景下AP进行内容更新的速度较快。因此为了提高画面显示流畅性，DDIC为动态显示场景设置较高的刷新频率，比如60Hz，30Hz等等。
另外，在实际应用过程中发现，当内容更新速度较慢时，若直接使用较低的刷新频率，会出现较为明显的拖影现象，需要以高刷新频率刷新几帧后再降至低刷新频率才能消除拖影现象；而当内容更新速度较快时，刷新频率匹配内容更新速度时，拖影现象轻微，用户不易察觉。
因此，为了避免静态显示场景下的拖影问题，在一种可能的实施方式中，第一刷新频率高于静态显示场景下的画面更新频率，而第二刷新频率与动态显示场景下的画面更新频率匹配。后续继续在静态显示场景下进行图像显示时，DDIC在第一刷新频率的基础上下调刷新频率，从而在解决拖影问题的情况下，降低静态显示场景下的显示功耗。
可选的，第一刷新频率为静态显示场景下画面更新频率的整数倍，第二刷新频率为动态显示场景下的画面更新频率。
比如，静态显示场景下的画面更新频率为10fps时，第一刷新频率可以被设置为120Hz或者60Hz，从而通过高频刷新几帧图像消除拖影；动态显示场景下的画面更新频率为30fps时，第二刷新频率可以被设置为30Hz。
示意性的，如图6所示，DDIC在接收到图像数据A、B、C、D时，确定处于动态显示场景，并将刷新频率确定为30Hz；如图7所示，DDIC在接收到图像数据A时，确定处于静态显示场景，且为了避免出现拖影问题，将刷新频率确定为120Hz，并连续刷新多帧，后续显示过程中即逐步降低刷新频率，降低显示功耗。
步骤506，对计数器的计数值进行清零操作。
在一些实施例中，每次接收到新的图像数据，并完成刷新频率调整后，DDIC均需要对计数器的计数值进行清零操作(即将计数重置为0)，避免对后续显示场景确定造成影响。
示意性的，如图6所示，DDIC接收到图像数据A、B、C、D后，将计数器的计数值重置为0。
步骤507，基于目标刷新频率以及第n帧图像数据控制显示屏进行图像显示。
进一步的，DDIC基于确定出的目标刷新频率以及第n帧图像数据控制显示屏进行图像显示。其中，在未接收到第n+1帧图像数据的情况下，DDIC根据目标刷新频率控制显示屏进行图像重复显示。
示意性的，如图6所示，在接收到图像数据A，但未接收到图像数据B的情况下，DDIC基于图像数据A，以30Hz的刷新频率进行图像显示(由于AP侧发送图像数据的频率为30fps，因此并未重复显示图像)。而在接收到图像数据D，但未接收到后续图像数据的情况下，DDIC基于图像数据D进行重复显示。
如图7所示，在接收到图像数据A，但未接收到后续图像数据的情况下，DDIC首先以120Hz的刷新频率进行图像显示，避免静态显示场景下的拖影问题，然后逐渐降低刷新频率，以降低显示功耗。
在显示第n帧图像的过程中，DDIC循环执行上述步骤，检测是否接收到第n+1帧图像数据，本实施例在此不再赘述。
本实施例中，通过将显示场景划分为静态显示场景和动态显示场景，并利用计数器对相邻两帧图像数据之间的间隔进行统计，从而在接收到新的图像数据时，基于计数器的计数值与计数阈值之间的关系，确定当前所处的显示场景，进而将刷新频率调整为适用于当前显示场景的目标刷新频率，实现自适应变频；整个变频逻辑由DDIC完成，不会增加终端功耗，且借助计数器即可实现，实现流程简洁，有助于提高变频效率。
此外，当接收到新的图像数据，且判断出当前处于静态显示场景时，DDIC先设置高刷新频率进行图像刷新显示，避免出现拖影现象，有助于提高静态显示场景下的画面显示质量。
由于AP侧的内容更新速度具有不确定性，比如，当视频播放完毕时，AP侧的内容更新速度由30fps降低至10fps，因此除了在接收到图像数据的情况下进行自适应变频，DDIC还需要在AP未发送新的图像数据，且内容更新速度下降的情况下，实现自适应降频，从而降低显示功耗，下面采用示例性实施例进行说明。
请参考图8，其示出了本申请另一个示例性实施例示出的变频显示方法的流程图。本实施例以该方法应用于显示屏的DDIC来举例说明。该方法包括：
步骤801，在接收到AP发送的第n-1帧图像数据，且未接收到AP发送的第n帧图像数据的情况下，更新计数器的计数值。
步骤802，基于当前刷新频率以及第n-1帧图像数据控制显示屏进行图像显示。
步骤803，在接收到AP发送的第n帧图像数据的情况下，获取计数器的计数值，计数器的计数值用于表征第n-1帧图像数据与第n帧图像数据之间的间隔。
步骤804，基于计数器的计数值确定当前显示场景。
步骤805，确定当前显示场景对应的目标刷新频率。
步骤801至805的实施方式可以参考上述步骤501至505，本实施例在此不再赘述。
步骤806，基于目标刷新频率确定刷新频率保持次数上限。
刷新频率保持次数上限指未接到新的图像数据时，DDIC基于当前刷新频率进行图像刷新的次数上限，一旦达到该次数上限，DDIC则需要执行降频逻辑。
其中，不同刷新频率对应各自的刷新频率保持次数上限，该刷新频率保持次数上限可以基于显示屏在不同刷新频率下的显示特性设置得到。不同刷新频率可以对应相同刷新频率保持次数上限，也可以对应不同刷新频率保持次数上限，本实施例对此不作限定。
示意性的，如图6所示，DDIC在动态显示场景下，基于目标刷新频率30Hz确定刷新频率保持次数为2次；如图7所示，DDIC在静态显示场景下，基于目标刷新频率120Hz确定刷新频率保持次数为2次。
步骤807，对计数器的计数值进行清零操作。
在一种可能的实施方式中，DDIC基于当前刷新频率进行图像显示的过程中，需要基于当前刷新频率的已保持次数确定是否需要进行自适应降频。若已保持次数达到刷新频率保持次数上限，则确定需要进行降频，执行下述步骤810至811；若已保持次数未达到刷新频率保持次数上限，则确定继续以当前刷新频率进行图像刷新，执行下述步骤808至809。
在一些实施例中，DDIC可以设置保持次数计数器，用于记录当前刷新频率的已保持次数。
步骤808，在未接收到AP发送的第n+1帧图像数据，且已保持次数未达到刷新频率保持次数上限的情况下，基于目标刷新频率以及第n帧图像数据控制显示屏进行图像显示。
在未接收到下一帧图像数据的情况下，若已保持次数未达到刷新频率保持次数上限，DDIC基于目标刷新频率以及第n帧图像数据控制显示屏进行图像显示。
示意性的，如图6所示，接收到图像数据D后，DDIC首先基于图像数据D进行一次图像显示，当连续输出4次TE信号后仍未收到新的图像数据时，由于当前刷新频率30Hz的已保持次数为1次，未达到刷新频率保持次数上限2次，因此DDIC再次基于图像数据D进行图像显示；如图7所示，接收到图像数据A后，DDIC首先基于图像数据A进行一次图像显示，当未收到新的图像数据时，由于当前刷新频率120Hz的已保持次数为1次，未达到刷新频率保持次数上限2次，因此DDIC再次基于图像数据D进行图像显示。
步骤809，更新已保持次数。
在一些实施例中，每完成一次图像显示后，DDIC即对已保持次数进行加一 操作。
步骤810，在未接收到AP发送的第n+1帧图像数据，且已保持次数达到刷新频率保持次数上限的情况下，将目标刷新频率下调为第三刷新频率。
在未接收到下一帧图像数据的情况下，若已保持次数达到刷新频率保持次数上限，DDIC则进行自适应降频，将目标刷新频率降低为第三刷新频率。在一种可能的实施方式中，该目标刷新频率为当前显示场景下的最高刷新频率，即在未接收到新图像数据的情况下，DDIC在当前显示场景的最高刷新频率的基础上降低刷新频率，以降低显示功耗。
示意性的，静态显示场景以及动态显示场景各自对应的多个刷新频率如表一所示，DDIC即根据当前显示场景，按照刷新频率的降序进行降频。
表一
静态显示场景 120Hz 60Hz 30Hz 10Hz
动态显示场景 30Hz 10Hz - -
可选的，下调刷新频率过程中，DDIC可以直接将目标刷新频率降低至第三刷新频率；或者，DDIC可以将目标刷新频率逐步降低至第三刷新频率，避免刷新频率变化幅度过大对画面显示造成影响。需要说明的是，在逐步下调刷新频率的过程中，每次下调一级刷新频率后，DDIC都需要执行上述刷新频率保持流程(即确定刷新频率保持次数上限、更新已保持次数以及已保持次数判断)，本实施例在此不再赘述。
示意性的，如图6所示，基于图像数据D进行图像显示过程中，当已保持次数达到2次时，DDIC将刷新频率由30Hz下调为10Hz，从而在无新图像数据的情况下减少图像刷新次数，降低显示功耗；如图7所示，基于图像数据A进行图像显示过程中，当已保持次数达到2次时，DDIC将刷新频率由120Hz逐步下调至10Hz(120Hz→60Hz→30Hz→10Hz)，从而在无新图像数据的情况下减少图像刷新次数，降低显示功耗。
步骤811，基于第三刷新频率以及第n帧图像数据控制显示屏进行图像显示。
DDIC基于下调后的第三刷新频率以及第n帧图像数据进行图像重复显示，并在显示过程中持续检测是否接收到下一帧图像数据。
除了通过比较已保持次数和刷新频率保持次数上限确定是否需要进行降频外，在另一种可能的实施方式中，DDIC可以在每次图像显示后，对刷新频率保持次数上限进行减一操作，从而在刷新频率保持次数上限达到0次时，进行自适应降频，本实施例对此不作限定。比如，当刷新频率保持次数上限为2次时，第一次图像显示后，DDIC将刷新频率保持次数上限更新为1次，第二次图像显示后，DDIC将刷新频率保持次数上限更新为0次，并进行自适应降频。
本实施例中，通过为刷新频率设置刷新频率保持次数上限，并在未接收到新的图像数据的情况下，在每次图像显示后对已保持次数进行更新，从而在已保持次数达到刷新频率保持次数上限时，触发自适应降频，使DDIC侧的刷新频率与AP侧的内容更新速率匹配，进一步降低显示功耗。
上述示例性的实施例中，对单一显示场景下的自适应变频过程进行说明， 下面采用示例性的实施例对不同显示场景的切换过程进行说明。
如图9所示，DDIC接收到AP发送的图像数据A、B、C时，基于计数器的计数值以及计数阈值，确定当前显示场景为动态场景，从而以30Hz的刷新频率进行图像刷新显示。在基于图像数据C进行图像显示时，由于已保持次数达到2次，因此DDIC执行降频逻辑，降低刷新频率。当在继续显示第C帧图像过程中接收到AP发送的图像数据D时，由于计数器的计数值达到计数阈值5，因此DDIC确定当前显示场景为静态显示场景，从而将刷新频率设置为120Hz，并根据刷新频率保持次数上限2次，逐级降低刷新频率。
如图10所示，DDIC接收到AP发送的图像数据A时，首先进入静态显示场景，以120Hz的刷新频率进行图像刷新显示，并在已保持次数达到2次时，执行降频逻辑。降频至30Hz时，DDIC接收到AP发送的图像数据B，由于计数器的计数值达到计数阈值5，因此DDIC确定当前显示场景仍旧为静态显示场景，以120Hz的刷新频率进行图像刷新显示，并在已保持次数达到2次时，执行降频逻辑。降频至60Hz时，DDIC接收到AP发送的图像数据C，由于计数器的计数值(计数值为3)未达到计数阈值5，因此DDIC确定当前显示场景变为动态显示场景，从而将刷新频率设置为30Hz，并根据刷新频率保持次数上限2次进行图像刷新显示(因为在计数值达到5之前接收到了图像数据D，因此无需进行图像重复刷新)。
在一些实施例中，本申请实施例提供的方法应用于移动终端，即由移动终端中OLED显示屏的DDIC执行上述变频显示方法。由于移动终端通常由电池进行供电，且电池的电量有限(对功耗较为敏感)，因此将本申请实施例提供的方法用于移动终端后，在提高移动终端显示质量的同时，能够降低移动终端的功耗。其中，该移动终端可以包括智能手机、平板电脑、可穿戴式设备(比如智能手表)、便携式个人计算机等等，本申请实施例并不对移动终端的具体类型进行限定。
当然，本申请实施例提供的方法还可以用于其他非电池供电的终端，比如电视、显示器或个人计算机等等，本申请实施例对此不作限定。
本申请实施例还提供了一种DDIC，所述DDIC应用于显示屏，所述DDIC用于：
在接收到AP发送的第n帧图像数据的情况下，基于所述AP的历史图像数据发送参数，确定当前显示场景，所述历史图像数据发送参数由所述DDIC通过统计历史图像数据的接收情况得到；
确定所述当前显示场景对应的目标刷新频率，其中，不同显示场景对应不同刷新频率；
基于所述目标刷新频率以及所述第n帧图像数据控制显示屏进行图像显示。
可选的，所述DDIC，用于：
获取计数器的计数值，所述计数器的计数值用于表征第n-1帧图像数据与所述第n帧图像数据之间的间隔；
基于所述计数器的计数值确定所述当前显示场景；
对所述计数器的计数值进行清零操作。
可选的，所述DDIC，用于：
在所述计数器的计数值大于或等于计数阈值的情况下，确定所述当前显示场景为静态显示场景；
在所述计数器的计数值小于所述计数阈值的情况下，确定所述当前显示场景为动态显示场景；
其中，所述静态显示场景下所述AP发送图像数据的频率低于所述动态显示场景下所述AP发送图像数据的频率。
可选的，所述DDIC，用于：
在所述当前显示场景为所述静态显示场景的情况下，将所述目标刷新频率确定为第一刷新频率，所述第一刷新频率为所述静态显示场景下的最高刷新频率；
在所述当前显示场景为所述动态显示场景的情况下，将所述目标刷新频率确定为第二刷新频率，所述第二刷新频率为所述动态显示场景下的最高刷新频率。
可选的，所述第一刷新频率高于所述静态显示场景下的画面更新频率；所述第二刷新频率与所述动态显示场景下的画面更新频率匹配。
可选的，所述DDIC，还用于：
在接收到所述AP发送的所述第n-1帧图像数据，且未接收到所述AP发送的所述第n帧图像数据的情况下，更新所述计数器的计数值。
可选的，所述DDIC，用于：
基于撕裂效应TE频率输出TE信号，所述TE信号用于指示所述AP发送图像数据；
在输出所述TE信号后，未接收到所述AP发送的所述第n帧图像数据的情况下，更新所述计数器的计数值。
可选的，所述TE频率为显示屏的最高刷新频率的整数倍。
可选的，所述DDIC，还用于：
基于所述目标刷新频率确定刷新频率保持次数上限；
在未接收到所述AP发送的第n+1帧图像数据，且已保持次数未达到所述刷新频率保持次数上限的情况下，基于所述目标刷新频率以及所述第n帧图像数据控制显示屏进行图像显示；
更新所述已保持次数。
可选的，所述目标刷新频率为所述当前显示场景下的最高刷新频率；
所述DDIC，还用于：
在未接收到所述AP发送的所述第n+1帧图像数据，且所述已保持次数达到所述刷新频率保持次数上限的情况下，将所述目标刷新频率下调为第三刷新频率；
基于所述第三刷新频率以及所述第n帧图像数据控制显示屏进行图像显示。
可选的，所述第三刷新频率为所述当前显示场景下的最低刷新频率；
所述DDIC，用于：
将所述目标刷新频率逐级下调为所述第三刷新频率。
可选的，所述DDIC为移动终端中OLED显示屏的DDIC。
上述DDIC在实现变频显示方法的详细过程可以参考上述各个方法实施例，本实施例在此不再赘述。
此外，本申请实施例还提供了一种显示屏模组，该显示屏模组包括显示屏和DDIC，DDIC用于驱动显示屏，DDIC用于实现如上述各个方法实施例提供的变频显示方法。
请参考图11，其示出了本申请一个示例性实施例提供的终端1100的结构方框图。该终端1100可以是智能手机、平板电脑、笔记本电脑等。本申请中的终端1100可以包括一个或多个如下部件：处理器1110、存储器1120、显示屏模组1130。
处理器1110可以包括一个或者多个处理核心，该处理器1110可以为上述实施例中所述的AP。处理器1110利用各种接口和线路连接整个终端1100内的各个部分，通过运行或执行存储在存储器1120内的指令、程序、代码集或指令集，以及调用存储在存储器1120内的数据，执行终端1100的各种功能和处理数据。可选地，处理器1110可以采用数字信号处理(Digital Signal Processing，DSP)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)、可编程逻辑阵列(Programmable Logic Array，PLA)中的至少一种硬件形式来实现。处理器1110可集成中央处理器(Central Processing Unit，CPU)、图像处理器(Graphics Processing Unit，GPU)、神经网络处理器(Neural-network Processing Unit，NPU)和调制解调器等中的一种或几种的组合。其中，CPU主要处理操作系统、用户界面和应用程序等；GPU用于负责触摸显示屏模组1130所需要显示的内容的渲染和绘制；NPU用于实现人工智能(Artificial Intelligence，AI)功能；调制解调器用于处理无线通信。可以理解的是，上述调制解调器也可以不集成到处理器1110中，单独通过一块芯片进行实现。
存储器1120可以包括随机存储器(Random Access Memory，RAM)，也可以包括只读存储器(Read-Only Memory，ROM)。可选地，该存储器1120包括非瞬时性计算机可读介质(non-transitory computer-readable storage medium)。存储器1120可用于存储指令、程序、代码、代码集或指令集。存储器1120可包括存储程序区和存储数据区，其中，存储程序区可存储用于实现操作系统的指令、用于至少一个功能的指令(比如触控功能、声音播放功能、图像播放功能等)、用于实现本申请各个方法实施例的指令等；存储数据区可存储根据终端1100的使用所创建的数据(比如音频数据、电话本)等。
显示屏模组1130是用于进行图像显示的显示组件，通常设置在终端1100的前面板。显示屏模组1130可被设计成为全面屏、曲面屏、异型屏、双面屏或折叠屏。显示屏模组1130还可被设计成为全面屏与曲面屏的结合，异型屏与曲面屏的结合，本实施例对此不加以限定。
本申请实施例中，显示屏模组1130包括DDIC1131和显示屏1132(面板)。 其中，显示屏1132可以为OLED显示屏，其可以是低温多晶硅(Low Temperature Poly-Silicon，LTPS)AMOLED显示屏或低温多晶氧化物(Low Temperature Polycrystalline Oxide，LTPO)AMOLED显示屏。
DDIC1131用于驱动显示屏1132进行图像显示，且DDIC1131用于实现上述各个实施例提供的变频显示方法。此外，DDIC1131与处理器1110之间通过MIPI接口相连，用于接收处理器1110下发的图像数据以及指令。
在一种可能的实现方式中，该显示屏模组1130还具有触控功能，通过触控功能，用户可以使用手指、触摸笔等任何适合的物体在显示屏模组1130上进行触控操作。
除此之外，本领域技术人员可以理解，上述附图所示出的终端1100的结构并不构成对终端1100的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。比如，终端1100中还包括麦克风、扬声器、射频电路、输入单元、传感器、音频电路、无线保真(Wireless Fidelity，WiFi)模块、电源、蓝牙模块等部件，在此不再赘述。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (26)

  1. 一种变频显示方法，所述方法用于显示屏的显示驱动电路芯片DDIC，所述方法包括：
    在接收到应用处理器AP发送的第n帧图像数据的情况下，基于所述AP的历史图像数据发送参数，确定当前显示场景，所述历史图像数据发送参数由所述DDIC通过统计历史图像数据的接收情况得到；
    确定所述当前显示场景对应的目标刷新频率，其中，不同显示场景对应不同刷新频率；
    基于所述目标刷新频率以及所述第n帧图像数据控制显示屏进行图像显示。
  2. 根据权利要求1所述的方法，其中，所述基于所述AP的历史图像数据发送情况，确定当前显示场景，包括：
    获取计数器的计数值，所述计数器的计数值用于表征第n-1帧图像数据与所述第n帧图像数据之间的间隔；
    基于所述计数器的计数值确定所述当前显示场景；
    对所述计数器的计数值进行清零操作。
  3. 根据权利要求2所述的方法，其中，所述基于所述计数器的计数值确定所述当前显示场景，包括：
    在所述计数器的计数值大于或等于计数阈值的情况下，确定所述当前显示场景为静态显示场景；
    在所述计数器的计数值小于所述计数阈值的情况下，确定所述当前显示场景为动态显示场景；
    其中，所述静态显示场景下所述AP发送图像数据的频率低于所述动态显示场景下所述AP发送图像数据的频率。
  4. 根据权利要求3所述的方法，其中，所述确定所述当前显示场景对应的目标刷新频率，包括：
    在所述当前显示场景为所述静态显示场景的情况下，将所述目标刷新频率确定为第一刷新频率，所述第一刷新频率为所述静态显示场景下的最高刷新频率；
    在所述当前显示场景为所述动态显示场景的情况下，将所述目标刷新频率确定为第二刷新频率，所述第二刷新频率为所述动态显示场景下的最高刷新频率。
  5. 根据权利要求4所述的方法，其中，
    所述第一刷新频率高于所述静态显示场景下的画面更新频率；
    所述第二刷新频率与所述动态显示场景下的画面更新频率匹配。
  6. 根据权利要求2所述的方法，其中，所述在接收到AP发送的第n帧图像数据的情况下，基于所述AP的历史图像数据发送参数，确定当前显示场景之前，所述方法还包括：
    在接收到所述AP发送的所述第n-1帧图像数据，且未接收到所述AP发送的所述第n帧图像数据的情况下，更新所述计数器的计数值。
  7. 根据权利要求6所述的方法，其中，所述在未接收到所述AP发送的所述第n帧图像数据的情况下，更新所述计数器的计数值，包括：
    基于撕裂效应TE频率输出TE信号，所述TE信号用于指示所述AP发送图像数据；
    在输出所述TE信号后，未接收到所述AP发送的所述第n帧图像数据的情况下，更新所述计数器的计数值。
  8. 根据权利要求7所述的方法，其中，所述TE频率为显示屏的最高刷新频率的整数倍。
  9. 根据权利要求1至8任一所述的方法，其中，所述方法还包括：
    基于所述目标刷新频率确定刷新频率保持次数上限；
    所述基于所述目标刷新频率以及所述第n帧图像数据控制显示屏进行图像显示，包括：
    在未接收到所述AP发送的第n+1帧图像数据，且已保持次数未达到所述刷新频率保持次数上限的情况下，基于所述目标刷新频率以及所述第n帧图像数据控制显示屏进行图像显示；
    更新所述已保持次数。
  10. 根据权利要求9所述的方法，其中，所述目标刷新频率为所述当前显示场景下的最高刷新频率；
    所述方法还包括：
    在未接收到所述AP发送的所述第n+1帧图像数据，且所述已保持次数达到所述刷新频率保持次数上限的情况下，将所述目标刷新频率下调为第三刷新频率；
    基于所述第三刷新频率以及所述第n帧图像数据控制显示屏进行图像显示。
  11. 根据权利要求10所述的方法，其中，所述第三刷新频率为所述当前显示场景下的最低刷新频率；
    所述将所述目标刷新频率下调为第三刷新频率，包括：
    将所述目标刷新频率逐级下调为所述第三刷新频率。
  12. 根据权利要求1至8任一所述的方法，其中，所述方法用于移动终端中有机发光二极体OLED显示屏的DDIC。
  13. 一种显示驱动电路芯片DDIC，所述DDIC应用于显示屏，所述DDIC用于：
    在接收到应用处理器AP发送的第n帧图像数据的情况下，基于所述AP的历史图像数据发送参数，确定当前显示场景，所述历史图像数据发送参数由所述DDIC通过统计历史图像数据的接收情况得到；
    确定所述当前显示场景对应的目标刷新频率，其中，不同显示场景对应不同刷新频率；
    基于所述目标刷新频率以及所述第n帧图像数据控制显示屏进行图像显示。
  14. 根据权利要求13所述的DDIC，其中，所述DDIC，用于：
    获取计数器的计数值，所述计数器的计数值用于表征第n-1帧图像数据与所述第n帧图像数据之间的间隔；
    基于所述计数器的计数值确定所述当前显示场景；
    对所述计数器的计数值进行清零操作。
  15. 根据权利要求14所述的DDIC，其中，所述DDIC，用于：
    在所述计数器的计数值大于或等于计数阈值的情况下，确定所述当前显示场景为静态显示场景；
    在所述计数器的计数值小于所述计数阈值的情况下，确定所述当前显示场景为动态显示场景；
    其中，所述静态显示场景下所述AP发送图像数据的频率低于所述动态显示场景下所述AP发送图像数据的频率。
  16. 根据权利要求15所述的DDIC，其中，所述DDIC，用于：
    在所述当前显示场景为所述静态显示场景的情况下，将所述目标刷新频率确定为第一刷新频率，所述第一刷新频率为所述静态显示场景下的最高刷新频率；
    在所述当前显示场景为所述动态显示场景的情况下，将所述目标刷新频率确定为第二刷新频率，所述第二刷新频率为所述动态显示场景下的最高刷新频率。
  17. 根据权利要求16所述的DDIC，其中，
    所述第一刷新频率高于所述静态显示场景下的画面更新频率；
    所述第二刷新频率与所述动态显示场景下的画面更新频率匹配。
  18. 根据权利要求14所述的DDIC，其中，所述DDIC，还用于：
    在接收到所述AP发送的所述第n-1帧图像数据，且未接收到所述AP发送的所述第n帧图像数据的情况下，更新所述计数器的计数值。
  19. 根据权利要求18所述的DDIC，其中，所述DDIC，用于：
    基于撕裂效应TE频率输出TE信号，所述TE信号用于指示所述AP发送图像数据；
    在输出所述TE信号后，未接收到所述AP发送的所述第n帧图像数据的情况下，更新所述计数器的计数值。
  20. 根据权利要求19所述的DDIC，其中，所述TE频率为显示屏的最高刷新频率的整数倍。
  21. 根据权利要求13至20任一所述的DDIC，其中，所述DDIC，还用于：
    基于所述目标刷新频率确定刷新频率保持次数上限；
    在未接收到所述AP发送的第n+1帧图像数据，且已保持次数未达到所述刷新频率保持次数上限的情况下，基于所述目标刷新频率以及所述第n帧图像数据控制显示屏进行图像显示；
    更新所述已保持次数。
  22. 根据权利要求21所述的DDIC，其中，所述目标刷新频率为所述当前 显示场景下的最高刷新频率；
    所述DDIC，还用于：
    在未接收到所述AP发送的所述第n+1帧图像数据，且所述已保持次数达到所述刷新频率保持次数上限的情况下，将所述目标刷新频率下调为第三刷新频率；
    基于所述第三刷新频率以及所述第n帧图像数据控制显示屏进行图像显示。
  23. 根据权利要求22所述的DDIC，其中，所述第五刷新频率为所述当前显示场景下的最低刷新频率；
    所述DDIC，用于：
    将所述目标刷新频率逐级下调为所述第三刷新频率。
  24. 根据权利要求13至20任一所述的DDIC，其中，所述DDIC为移动终端中有机发光二极体OLED显示屏的DDIC。
  25. 一种显示屏模组，所述显示屏模组包括显示屏和显示驱动电路芯片DDIC，所述DDIC用于驱动所述显示屏，所述DDIC用于实现如权利要求1至12任一所述的变频显示方法。
  26. 一种终端，所述终端包括应用处理器AP、显示屏和显示驱动电路芯片DDIC，所述AP与所述DDIC之间通过移动产业处理器接口MIPI相连，所述DDIC用于实现如权利要求1至12任一所述的变频显示方法。
PCT/CN2022/101623 2021-07-30 2022-06-27 变频显示方法、ddic、显示屏模组及终端 WO2023005558A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110869095.0 2021-07-30
CN202110869095.0A CN113608713B (zh) 2021-07-30 2021-07-30 变频显示方法、ddic、显示屏模组及终端

Publications (1)

Publication Number Publication Date
WO2023005558A1 true WO2023005558A1 (zh) 2023-02-02

Family

ID=78306183

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/101623 WO2023005558A1 (zh) 2021-07-30 2022-06-27 变频显示方法、ddic、显示屏模组及终端

Country Status (2)

Country Link
CN (1) CN113608713B (zh)
WO (1) WO2023005558A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116027930A (zh) * 2023-02-21 2023-04-28 深圳曦华科技有限公司 动态帧率控制方法及装置
CN116543711A (zh) * 2023-05-12 2023-08-04 广州文石信息科技有限公司 墨水屏的清屏显示方法、装置、设备以及存储介质

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113608713B (zh) * 2021-07-30 2023-09-26 Oppo广东移动通信有限公司 变频显示方法、ddic、显示屏模组及终端
CN116700653B (zh) * 2022-02-28 2024-03-19 荣耀终端有限公司 帧率切换方法及相关装置
WO2023230903A1 (zh) * 2022-05-31 2023-12-07 京东方科技集团股份有限公司 显示控制器、显示设备、显示系统以及控制方法
CN115423919B (zh) * 2022-09-14 2023-08-25 阿波罗智联(北京)科技有限公司 图像的渲染方法、装置、设备以及存储介质
CN117133232A (zh) * 2023-04-12 2023-11-28 荣耀终端有限公司 一种显示方法、芯片及电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109308173A (zh) * 2017-07-26 2019-02-05 腾讯科技（深圳）有限公司 显示方法及装置、显示终端及计算机存储介质
US20190180705A1 (en) * 2017-12-07 2019-06-13 Qualcomm Incorporated Dynamic control of display refresh rate based on user interface activity
CN111968582A (zh) * 2020-01-14 2020-11-20 Oppo广东移动通信有限公司 显示屏变频方法、ddic芯片、显示屏模组及终端
CN112230758A (zh) * 2020-11-09 2021-01-15 腾讯科技（深圳）有限公司 帧率调整方法、装置、设备及计算机可读存储介质
CN113608713A (zh) * 2021-07-30 2021-11-05 Oppo广东移动通信有限公司 变频显示方法、ddic、显示屏模组及终端

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10032430B2 (en) * 2014-09-17 2018-07-24 Mediatek Inc. Processor for use in dynamic refresh rate switching and related electronic device
CN105898337A (zh) * 2015-11-18 2016-08-24 乐视网信息技术（北京）股份有限公司 全景视频的显示方法和装置
CN110728964B (zh) * 2019-10-25 2021-03-02 京东方科技集团股份有限公司 显示频率调节方法及装置、驱动电路、显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109308173A (zh) * 2017-07-26 2019-02-05 腾讯科技（深圳）有限公司 显示方法及装置、显示终端及计算机存储介质
US20190180705A1 (en) * 2017-12-07 2019-06-13 Qualcomm Incorporated Dynamic control of display refresh rate based on user interface activity
CN111968582A (zh) * 2020-01-14 2020-11-20 Oppo广东移动通信有限公司 显示屏变频方法、ddic芯片、显示屏模组及终端
CN112230758A (zh) * 2020-11-09 2021-01-15 腾讯科技（深圳）有限公司 帧率调整方法、装置、设备及计算机可读存储介质
CN113608713A (zh) * 2021-07-30 2021-11-05 Oppo广东移动通信有限公司 变频显示方法、ddic、显示屏模组及终端

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116027930A (zh) * 2023-02-21 2023-04-28 深圳曦华科技有限公司 动态帧率控制方法及装置
CN116027930B (zh) * 2023-02-21 2023-08-08 深圳曦华科技有限公司 动态帧率控制方法及装置
CN116543711A (zh) * 2023-05-12 2023-08-04 广州文石信息科技有限公司 墨水屏的清屏显示方法、装置、设备以及存储介质
CN116543711B (zh) * 2023-05-12 2023-11-03 广州文石信息科技有限公司 墨水屏的清屏显示方法、装置、设备以及存储介质

Also Published As

Publication number Publication date
CN113608713B (zh) 2023-09-26
CN113608713A (zh) 2021-11-05

Similar Documents

Publication Publication Date Title
WO2022105484A1 (zh) 显示屏变频方法、ddic芯片、显示屏模组及终端
WO2023005558A1 (zh) 变频显示方法、ddic、显示屏模组及终端
CN111968582B (zh) 显示屏变频方法、ddic芯片、显示屏模组及终端
CN113160748B (zh) 显示屏变频方法、显示驱动集成电路芯片及应用处理器
CN113160747B (zh) 显示屏变频方法、显示驱动集成电路芯片及应用处理器
US9905199B2 (en) Processor for use in dynamic refresh rate switching and related electronic device and method
WO2022111098A1 (zh) 触控扫描方法、tpic芯片、ddic芯片及模组
WO2023046164A1 (zh) 图像显示方法、ddic、显示屏模组及终端
WO2023040591A1 (zh) 图像显示方法、ddic、显示屏模组及终端
WO2022105485A1 (zh) 图像显示方法、ddic芯片、ap、显示屏模组及终端
WO2023040592A1 (zh) 图像数据传输方法、装置、终端及介质
WO2023040593A1 (zh) 图像数据传输方法、装置、终端及介质
US11657748B2 (en) Display control method and display device
WO2024012098A1 (zh) 显示屏的控制方法、装置、电子设备及存储介质
WO2023061096A1 (zh) 显示屏刷新帧率的调整方法、装置、处理器、芯片和终端
CN113327553B (zh) 图像显示方法、显示驱动集成电路芯片及终端
KR102683367B1 (ko) 디스플레이 장치 및 그 제어 방법
WO2023160136A9 (zh) 帧率切换方法及相关装置
US20230005449A1 (en) Adjusting peak signal in transitional frame
WO2024140867A1 (zh) 显示屏驱动方法、像素驱动电路及相关装置
KR20240109968A (ko) 디스플레이 장치 및 그 제어 방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22848165

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE