CN117524077A - Display control method of display panel and display device - Google Patents

Display control method of display panel and display device Download PDF

Info

Publication number
CN117524077A
CN117524077A CN202310348443.9A CN202310348443A CN117524077A CN 117524077 A CN117524077 A CN 117524077A CN 202310348443 A CN202310348443 A CN 202310348443A CN 117524077 A CN117524077 A CN 117524077A
Authority
CN
China
Prior art keywords
refresh rate
display
current frame
display panel
refresh
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202310348443.9A
Other languages
Chinese (zh)
Inventor
彭钟
王有盛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
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 Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to CN202310348443.9A priority Critical patent/CN117524077A/en
Publication of CN117524077A publication Critical patent/CN117524077A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

Abstract

The application discloses a display control method and a display device of a display panel, wherein the display control method of the display panel comprises the following steps: acquiring a first refresh rate of a current frame display picture and a second refresh rate of a next frame display picture; judging whether the difference value between the first refresh rate and the second refresh rate is larger than a preset frequency difference value or not; if yes, continuously displaying the current frame display picture within a preset duration, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate within the preset duration. The black screen problem caused by switching of different refresh rates can be improved.

Description

Display control method of display panel and display device
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display control method and a display device for a display panel.
Background
The display frequency conversion technology is a display technology for selecting a proper refresh rate according to display contents, and the refresh frequency of a display device is generally fixed at a certain frequency, for example, the most common refresh frequency is 60 hz when the display device is in operation. However, under some special display screens, it is desirable for the display device to display at a higher or lower refresh frequency, e.g., a high refresh frequency operation at game or video enhancing the screen experience, and a low refresh rate operation at still screen or text application mode to reduce power consumption. The current market terminals mostly adopt variable refresh rates, and by synchronizing the refresh frequency of the compatible display device and the frame rate of the display card, the problems of jamming, screen display or tearing generated during game playing and video playing can be reduced or eliminated to the greatest extent.
When the refresh rate is switched, the existing display device can realize the refresh rate switching through the operation of powering down and powering up again, powering down means that the screen can appear black screen, the more the refresh rate is switched, the more the screen appears black screen, and the black screen problem caused by the switching of different refresh rates greatly influences user experience.
Disclosure of Invention
The application provides a display control method of a display panel and a display device, which can improve the problem of black screen caused by switching different refresh rates.
In one aspect, an embodiment of the present application provides a display control method of a display panel, including the following steps: acquiring a first refresh rate of a current frame display picture and a second refresh rate of a next frame display picture; judging whether the difference value between the first refresh rate and the second refresh rate is larger than a preset frequency difference value or not; if yes, continuously displaying the current frame display picture within a preset duration, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate within the preset duration.
Optionally, in some embodiments of the present application, the step of obtaining the first refresh rate of the current frame display and the second refresh rate of the next frame display further includes: and acquiring first image data of a display picture of the current frame, and storing the first image data.
Optionally, in some embodiments of the present application, the step of determining whether a difference between the first refresh rate and the second refresh rate is greater than a preset frequency difference includes: calculating a difference between the first refresh rate and the second refresh rate; and comparing the difference value with the preset frequency difference value, and judging whether the difference value is larger than the preset frequency difference value or not.
Optionally, in some embodiments of the present application, the value of the preset duration includes a duration of a display of the current frame.
Optionally, in some embodiments of the present application, if yes, the step of continuously displaying the current frame display screen for a preset duration, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate for the preset duration includes: if the difference between the first refresh rate and the second refresh rate is greater than the preset frequency difference, a self-refresh start signal is input; inserting a frame of the current frame display picture between the current frame display picture and the next frame display picture; switching the refresh rate of the display panel from the first refresh rate to the second refresh rate during the inserted duration of the current frame display.
Optionally, in some embodiments of the present application, the value of the preset duration includes a duration of at least two frames of the current frame display frame.
Optionally, in some embodiments of the present application, if yes, the step of continuously displaying the current frame display screen for a preset duration, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate for the preset duration includes: if the difference between the first refresh rate and the second refresh rate is greater than the preset frequency difference, a self-refresh start signal is input; inserting at least two frames of the current frame display frames between the current frame display frames and the next frame display frames; and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate during the duration of the display frame of the current frame of the inserted at least two frames.
Optionally, in some embodiments of the present application, the display control method further includes: and acquiring and storing the image data of the next frame of display picture, and displaying the next frame of display picture at the second refresh rate.
Optionally, in some embodiments of the present application, the preset frequency difference value range includes 1 hz to 10 hz.
On the other hand, the embodiment of the application also provides a display device, which comprises a display panel, and performs display control on the display panel by adopting the display control method of the display panel, and further comprises an acquisition module and a control module, wherein the acquisition module is electrically connected with the display panel and the control module, and the control module is electrically connected with the display panel; the acquisition module is used for acquiring a first refresh rate of a current frame display picture and a second refresh rate of a next frame display picture; the control module is used for judging whether the difference value between the first refresh rate and the second refresh rate is larger than a preset frequency difference value; if yes, continuously displaying the current frame display picture in a preset duration, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate in the preset duration.
The application provides a display control method and a display device of a display panel, wherein the display control method of the display panel obtains a first refresh rate of a display picture of a current frame and a second refresh rate of a display picture of a next frame; judging whether the difference value between the first refresh rate and the second refresh rate is larger than a preset frequency difference value or not; if so, continuously displaying the current frame display picture within a preset time period, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate within the preset time period, namely, switching the refresh frequency while statically displaying the current frame display picture by starting a self-refresh mode before switching different refresh rates, thereby improving the black screen problem caused by switching different refresh rates and improving the display quality.
Drawings
Fig. 1 is a schematic flow chart of a first flow chart of a display control method of a display panel provided by the application;
fig. 2 is a schematic flow chart of step S20 in fig. 1;
FIG. 3 is a first flow chart of step S30 in FIG. 1;
FIG. 4 is a second flow chart of step S30 in FIG. 1;
fig. 5 is a schematic flow chart of a second method for controlling display of the display panel provided in the present application;
fig. 6 is a schematic structural diagram of a display device provided in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The embodiment of the application provides a display control method and a display device of a display panel, which can improve the black screen problem caused by switching different refresh rates and improve the display quality. The following will describe in detail. The following description of the embodiments is not intended to limit the preferred embodiments. In addition, in the description of the present application, the term "comprising" means "including but not limited to".
The refresh rate of the display panel is the speed of updating the display screen within one second, for example, 60 hz can be simply understood as that 60 display screens can be displayed or updated within one second, and 120 hz is that 120 display screens can be displayed or updated within one second. The higher the refresh rate, the more display pictures are displayed in unit time, so that when people watch the pictures, the more details can be seen, and the pictures are linked smoothly and more finely.
When the refresh rate of the display panel is switched, the display driving chip can perform the operation of powering down and powering up to realize the switching of the refresh rate, the powering down of the display driving chip means that the display panel can generate a black screen, and the operation of powering up again is to readjust the output frequency, so that the corresponding refresh rate can be realized. It can be understood that the more the number of times of refresh rate switching is, the more the display panel has a black screen, and the embodiment of the application provides a display control method of the display panel, which can eliminate the black screen problem caused by different refresh rate switching.
It should be noted that, the sequence number of each step in the embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present invention.
Referring to fig. 1, fig. 1 is a schematic flow chart of a display control method of a display panel according to an embodiment of the disclosure. As shown in fig. 1, an embodiment of the present application provides a display control method of a display panel, including the following steps:
s10, acquiring a first refresh rate of a current frame display picture and a second refresh rate of a next frame display picture.
In the embodiment of the application, the first refresh rate of the current frame display screen is obtained, the first image data of the current frame display screen is obtained at the same time, and the first image data of the current frame display screen is stored, so that the current frame display screen is inserted between the current frame display screen and the next frame display screen according to the first image data when different refresh rates are switched, namely static display of multiple frames of current frame display screens is realized.
In the embodiment of the application, the higher the refresh rate of the display picture is, the higher the display brightness corresponding to the same gray level is, and under the same gray level, if the second refresh rate is greater than the first refresh rate, the display brightness of the next frame of display picture is greater than the display brightness of the current frame of display picture; if the second refresh rate is smaller than the first refresh rate, the display brightness of the next frame of display picture is smaller than the display brightness of the current frame of display picture. Therefore, if the second refresh rate is greater than the first refresh rate and the difference between the display brightness of the current frame display and the display brightness of the next frame display is greater, the gamma voltage for driving the display of the current frame display is increased or the gamma voltage for driving the display of the next frame display is decreased, so that the brightness of the current frame display is consistent with the brightness of the next frame display, and the problem of picture flicker caused by refresh rate switching is avoided.
S20, judging whether the difference value between the first refresh rate and the second refresh rate is larger than a preset frequency difference value.
In the embodiment of the present application, preferably, the preset frequency difference value range includes 1 hz to 10 hz. Specifically, the preset frequency difference values include 1 hz, 2 hz, 3 hz, 4 hz, 5 hz, 6 hz, 7 hz, 8 hz, 9 hz, 10 hz, etc., which can be adjusted by those skilled in the art according to actual needs, and the application is not limited herein.
In this embodiment of the present application, if the difference between the first refresh rate and the second refresh rate is smaller than the preset frequency difference, no self-refresh start signal needs to be input, the current frame of display image is displayed normally, and the next frame of display image is displayed directly at the corresponding refresh rate.
And S30, if so, continuously displaying the current frame display picture within a preset time period, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate within the preset time period.
In the embodiment of the present application, if the difference between the first refresh rate and the second refresh rate is greater than the preset frequency difference, the signal transmitter transmits a self-refresh on signal (i.e. starts the self-refresh mode). With self-refresh enabled, the system module is powered down. When an image processor or the like in the system module enters a standby state, the timing controller in the system module receives a previously received data signal (i.e., first image data) from the remote frame memory.
Specifically, a timing controller in the system module supplies the first image data from the remote frame memory to the data driver. The data driver then converts the data signal supplied from the timing controller into an analog data signal corresponding to the gamma gray voltage, and supplies the analog data signal to the display panel. The self-refresh controller in the system module changes the operating frequency of the gate driver and the data driver and temporarily stops (or interrupts) the data driver for a certain period of time. That is, in the self-refresh mode, the data driver does not input the data signal of the display screen of the next frame, and thus the display panel continuously displays the display screen of the current frame in the self-refresh period (within the preset time period), at which time the system switches the refresh rate of the display panel from the first refresh rate to the second refresh rate, without causing the display panel to black.
The application provides a display control method of a display panel, wherein the display control method of the display panel obtains a first refresh rate of a current frame display picture and a second refresh rate of a next frame display picture; judging whether the difference value between the first refresh rate and the second refresh rate is larger than a preset frequency difference value; if so, continuously displaying the current frame of display picture in the preset time period, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate in the preset time period, namely, switching the refresh frequency while statically displaying the current frame of display picture by starting the self-refresh mode before switching the refresh rates, thereby improving the black screen problem caused by switching the refresh rates and improving the display quality.
Referring to fig. 2, fig. 2 is a flow chart of step S20 in fig. 1. As shown in fig. 2, step S20 specifically includes:
s201, calculating a difference value between the first refresh rate and the second refresh rate.
In the embodiment of the present application, a difference between the first refresh rate and the second refresh rate is calculated, and specifically, an absolute value of a difference between the second refresh rate of the next frame of display picture and the first refresh rate of the current frame of display picture is calculated.
S202, comparing the difference value with a preset frequency difference value, and judging whether the difference value is larger than the preset frequency difference value.
In the embodiment of the present application, the range of the preset frequency difference value includes 1 hz to 10 hz. Illustratively, when the absolute value of the difference between the first refresh rate and the second refresh rate is greater than 10 hz, such as the first refresh rate is 48 hz, and the second refresh rate is 60 hz, the difference between the first refresh rate and the second refresh rate is 12 hz, and at this time, the difference between the first refresh rate and the second refresh rate is greater than the preset frequency difference.
In this embodiment of the present application, if the difference between the first refresh rate and the second refresh rate is smaller than the preset frequency difference, no self-refresh start signal needs to be input, the current frame of display image is displayed normally, and the next frame of display image is displayed directly at the corresponding refresh rate. If the first refresh rate is 48 Hz and the second refresh rate is 48.5 Hz, the difference between the first refresh rate and the second refresh rate is 0.5 Hz, at this time, the difference between the first refresh rate and the second refresh rate is smaller than the preset frequency difference, at this time, a self-refresh on signal is not input, the current frame display picture is normally displayed, and the next frame display picture is directly displayed at the corresponding refresh rate.
In this embodiment of the present application, the value of the preset duration includes a duration of a display frame of a current frame. Specifically, since the preset duration is the duration of one frame of the current frame display frame, the switching from the first refresh rate to the second refresh rate needs to be completed within the duration of one frame of the current frame display frame, which is equivalent to simultaneously performing the self-refresh signal on and the refresh rate switching. For specific details, please refer to the following examples:
referring to fig. 3, fig. 3 is a first flowchart of step S30 in fig. 1. As shown in fig. 3, step S30 specifically includes:
s301, if the difference between the first refresh rate and the second refresh rate is greater than the preset frequency difference, a self-refresh start signal is input.
S302, inserting a current frame display picture between the current frame display picture and a next frame display picture.
S303, switching the refresh rate of the display panel from the first refresh rate to the second refresh rate during the duration of the inserted current frame display.
In this embodiment of the present application, the value of the preset duration includes duration of at least two frames of current frame display frames. Preferably, the preset duration is less than the duration of the display of the five current frames. The preset duration includes a duration of three current frame display frames, and after the self-refresh mode is entered, the refresh rate may be switched from the first refresh rate to the second refresh rate within a duration of a first frame display frame, or the refresh rate may be switched from the first refresh rate to the second refresh rate within a duration of an intermediate frame display frame or a duration of a last frame display frame. The method can normally display the static current frame display picture, can finish the switching of the refresh rate, and avoids the problem of black screen caused by the switching of the refresh rate. Specifically, please refer to the following examples:
referring to fig. 4, fig. 4 is a second flowchart of step S30 in fig. 1. As shown in fig. 4, step S30 specifically includes:
s311, if the difference between the first refresh rate and the second refresh rate is greater than the preset frequency difference, a self-refresh start signal is input.
S312, at least two frames of current frame display pictures are inserted between the current frame display picture and the next frame display picture.
S313, switching the refresh rate of the display panel from the first refresh rate to the second refresh rate during the duration of the inserted at least two frames of the current frame display.
Referring to fig. 5, fig. 5 is a second flowchart of a display control method of a display panel according to an embodiment of the disclosure. As shown in fig. 5, an embodiment of the present application provides a display control method of a display panel, including the following steps:
s10, acquiring a first refresh rate of a current frame display picture and a second refresh rate of a next frame display picture.
In the embodiment of the application, the first refresh rate of the current frame display screen is obtained, the first image data of the current frame display screen is obtained at the same time, and the first image data of the current frame display screen is stored, so that the current frame display screen is inserted between the current frame display screen and the next frame display screen according to the first image data when different refresh rates are switched, namely static display of multiple frames of current frame display screens is realized.
S20, judging whether the difference value between the first refresh rate and the second refresh rate is larger than a preset frequency difference value.
In the embodiment of the present application, preferably, the preset frequency difference value range includes 1 hz to 10 hz. Specifically, the preset frequency difference values include 1 hz, 2 hz, 3 hz, 4 hz, 5 hz, 6 hz, 7 hz, 8 hz, 9 hz, 10 hz, etc., which can be adjusted by those skilled in the art according to actual needs, and the application is not limited herein.
In this embodiment of the present application, if the difference between the first refresh rate and the second refresh rate is smaller than the preset frequency difference, no self-refresh signal needs to be input, the current frame of display image is displayed normally, and the next frame of display image is displayed directly at the corresponding refresh rate.
And S30, if so, continuously displaying the current frame display picture within a preset time period, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate within the preset time period.
In the embodiment of the present application, if the difference between the first refresh rate and the second refresh rate is greater than the preset frequency difference, the signal transmitter transmits a self-refresh on signal (i.e. starts the self-refresh mode). In the self-refresh mode, the data driver does not input the data signal of the next frame of display screen, so the display panel continuously displays the current frame of display screen in the self-refresh period (within the preset duration), at this time, the system switches the refresh rate of the display panel from the first refresh rate to the second refresh rate, and the display panel black screen is not caused.
And S40, acquiring and storing the image data of the next frame of display picture, and displaying the next frame of display picture at the second refresh rate.
In this embodiment of the present application, after the refresh rate of the display panel is switched from the first refresh rate to the second refresh rate, the self-refresh mode is turned off (the self-refresh off signal is input), the data signal is normally input, and the next frame of display screen is normally displayed. At this time, the steps in the brightness control method are repeated to continuously improve the black screen problem caused by switching of different refresh rates, and improve the display quality.
The application provides a display control method of a display panel, wherein the display control method of the display panel obtains a first refresh rate of a current frame display picture and a second refresh rate of a next frame display picture; judging whether the difference value between the first refresh rate and the second refresh rate is larger than a preset frequency difference value; if so, continuously displaying the current frame of display picture in the preset time period, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate in the preset time period, namely, switching the refresh frequency while statically displaying the current frame of display picture by starting the self-refresh mode before switching the refresh rates, thereby improving the black screen problem caused by switching the refresh rates and improving the display quality.
On the other hand, referring to fig. 6, fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present application. As shown in fig. 6, the embodiment of the present application further provides a display device 100, where the display device 100 includes a display panel 10, and the display panel 10 is compensated for brightness by using the display control method of the display panel as described above, and the display device 100 further includes: the display device comprises an acquisition module 20 and a control module 30, wherein the acquisition module 20 is electrically connected with the display panel 10 and the control module 30, and the control module 30 is electrically connected with the display panel 10; the acquiring module 20 is configured to acquire a first refresh rate of a current frame display and a second refresh rate of a next frame display; the control module 30 is configured to determine whether a difference between the first refresh rate and the second refresh rate is greater than a preset frequency difference; if yes, the current frame display picture is continuously displayed in the preset time period, and the refresh rate of the display panel is switched from the first refresh rate to the second refresh rate in the preset time period.
In the embodiment of the present application, the control module may also implement refresh rate switching by using hardware, for example: the hot key modes such as a keyboard or a mouse, and the like, specifically, the function keys on the keyboard can be set in one-to-one correspondence with different frequencies, and the corresponding refresh rate can be switched by clicking the corresponding function keys. In addition, the switching can be performed by selecting different refresh rates by the mouse. The self-refresh mode can be selectively started and the refresh rate can be switched by making a software switch on the display device; the switching can also be performed by detecting abrupt changes in the data transmission rate, for example, switching from 60 hz to 48 hz when the data transmission rate is instantaneously reduced.
Specifically, the display device 100 may be an LCD (liquid crystal display), an OLED (organic electroluminescence display), a QLED (quantum dot light emitting diode), a curved display device, or the like.
The application provides a display control method and a display device of a display panel, wherein the display control method of the display panel obtains a first refresh rate of a display picture of a current frame and a second refresh rate of a display picture of a next frame; judging whether the difference value between the first refresh rate and the second refresh rate is larger than a preset frequency difference value or not; if so, continuously displaying the current frame display picture within a preset time period, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate within the preset time period, namely, switching the refresh frequency while statically displaying the current frame display picture by starting a self-refresh mode before switching different refresh rates, thereby improving the black screen problem caused by switching different refresh rates and improving the display quality.
The foregoing has described in detail the display control method and the display device of the display panel provided in the embodiments of the present application, and specific examples have been applied to illustrate the principles and embodiments of the present application, where the foregoing description of the embodiments is only for helping to understand the method and the core idea of the present application; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the contents of the present specification should not be construed as limiting the present application in summary.

Claims (10)

1. A display control method of a display panel, comprising the steps of:
acquiring a first refresh rate of a current frame display picture and a second refresh rate of a next frame display picture;
judging whether the difference value between the first refresh rate and the second refresh rate is larger than a preset frequency difference value or not;
if yes, continuously displaying the current frame display picture within a preset duration, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate within the preset duration.
2. The display control method of a display panel according to claim 1, wherein the step of acquiring a first refresh rate of a current frame display and a second refresh rate of a next frame display further comprises:
and acquiring first image data of a display picture of the current frame, and storing the first image data.
3. The display control method of a display panel according to claim 1, wherein the step of judging whether the difference between the first refresh rate and the second refresh rate is greater than a preset frequency difference, comprises:
calculating a difference between the first refresh rate and the second refresh rate;
and comparing the difference value with the preset frequency difference value, and judging whether the difference value is larger than the preset frequency difference value or not.
4. The display control method of a display panel according to claim 1, wherein the value of the preset duration includes a duration of one frame of the current frame display.
5. The display control method of a display panel according to claim 1, wherein if so, the step of continuously displaying the current frame display screen for a preset time period and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate for the preset time period includes:
if the difference between the first refresh rate and the second refresh rate is greater than the preset frequency difference, a self-refresh start signal is input;
inserting a frame of the current frame display picture between the current frame display picture and the next frame display picture;
switching the refresh rate of the display panel from the first refresh rate to the second refresh rate during the inserted duration of the current frame display.
6. The display control method of a display panel according to claim 1, wherein the value of the preset duration includes a duration of at least two frames of the current frame display.
7. The method according to claim 6, wherein if so, the step of continuously displaying the current frame display frame for a preset period of time and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate for the preset period of time includes:
if the difference between the first refresh rate and the second refresh rate is greater than the preset frequency difference, a self-refresh start signal is input;
inserting at least two frames of the current frame display frames between the current frame display frames and the next frame display frames;
and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate during the duration of the display frame of the current frame of the inserted at least two frames.
8. The display control method of a display panel according to claim 1, characterized in that the display control method further comprises:
and acquiring and storing the image data of the next frame of display picture, and displaying the next frame of display picture at the second refresh rate.
9. The display control method of a display panel according to claim 1, wherein the range of values of the preset frequency difference value includes 1 hz to 10 hz.
10. A display device, characterized in that the display device comprises a display panel, and performs display control on the display panel by using the display control method of the display panel according to any one of claims 1 to 9, the display device further comprises an acquisition module and a control module, the acquisition module is electrically connected with the display panel and the control module, and the control module is electrically connected with the display panel;
the acquisition module is used for acquiring a first refresh rate of a current frame display picture and a second refresh rate of a next frame display picture;
the control module is used for judging whether the difference value between the first refresh rate and the second refresh rate is larger than a preset frequency difference value; if yes, continuously displaying the current frame display picture in a preset duration, and switching the refresh rate of the display panel from the first refresh rate to the second refresh rate in the preset duration.
CN202310348443.9A 2023-03-30 2023-03-30 Display control method of display panel and display device Pending CN117524077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310348443.9A CN117524077A (en) 2023-03-30 2023-03-30 Display control method of display panel and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310348443.9A CN117524077A (en) 2023-03-30 2023-03-30 Display control method of display panel and display device

Publications (1)

Publication Number Publication Date
CN117524077A true CN117524077A (en) 2024-02-06

Family

ID=89763243

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310348443.9A Pending CN117524077A (en) 2023-03-30 2023-03-30 Display control method of display panel and display device

Country Status (1)

Country Link
CN (1) CN117524077A (en)

Similar Documents

Publication Publication Date Title
EP4089666A1 (en) Display screen frequency conversion method, ddic chip, display screen module, and terminal
US9924134B2 (en) Dynamic frame rate adjustment
JP3527193B2 (en) Liquid crystal display device and computer
US8970645B2 (en) Display device, drive method thereof, and electronic device
CN109272931B (en) Display control method and device of display panel and display equipment
US8760476B2 (en) Liquid crystal display devices and methods for driving the same
JP2003280617A (en) Display device, and driving method of the display device
US20080165099A1 (en) Lcds and methods for driving same
US8933866B2 (en) Active matrix pixel brightness control
JP2005326859A (en) Method and system for driving dual display panels
JP4566176B2 (en) Display drive circuit
JP2002169499A (en) Driving method of display panel and driving controller of display panel
CN111933085A (en) Page refreshing method and system for ink screen
KR101852500B1 (en) A method for controling a display having the power saving function by decting some of monitor pixel lines and the method for controling the power saving of a computer system
KR101676723B1 (en) Method of driving a light-source, method of displaying image and display apparatus having the same
US20120306941A1 (en) Method and Device for Controlling Signal-Processing of the Backlight Module of the Display Device
US6075510A (en) Low power refreshing (smart display multiplexing)
CN106933329A (en) A kind of method of mobile terminal adaptive energy-saving grade, device and mobile terminal
JP5576587B2 (en) Liquid crystal display
CN107993605B (en) Display panel driving method and display device
CN117524077A (en) Display control method of display panel and display device
US20080100595A1 (en) Method for eliminating power-off residual image in a system for displaying images
CA2824661C (en) Active matrix pixel brightness control
JP2004325853A (en) Method of preventing image persistence of liquid crystal monitor, liquid crystal monitor provided with image persistence preventing function, and computer provided with image persistence preventing function of liquid crystal monitor
JP2011128285A (en) Liquid crystal display device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination