CN111640390A - Display screen flicker adjusting circuit and method and display device - Google Patents
Display screen flicker adjusting circuit and method and display device Download PDFInfo
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- CN111640390A CN111640390A CN202010621613.2A CN202010621613A CN111640390A CN 111640390 A CN111640390 A CN 111640390A CN 202010621613 A CN202010621613 A CN 202010621613A CN 111640390 A CN111640390 A CN 111640390A
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- 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
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- 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
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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Abstract
The invention provides a display picture flicker adjusting circuit, a display picture flicker adjusting method and a display device, belongs to the technical field of display, and can solve the problem that a display device matched with a G-sync display technology at present flickers a display picture at the moment of switching of refresh frequency. The display screen flicker adjusting circuit of the present invention includes: the identification module is used for identifying a first refresh frequency of a current frame display picture and a refresh frequency of a next frame display picture according to the refresh frequency control signal; the acquisition module is used for acquiring first brightness corresponding to a preset gray scale at a first refreshing frequency and second brightness corresponding to a preset gray scale at a second refreshing frequency according to the corresponding relation between the gray scale and the brightness at different refreshing frequencies; and the compensation module is used for compensating the second brightness of the next frame of display picture according to the difference value of the second brightness and the first brightness.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a display picture flicker adjusting circuit and method and a display device.
Background
As a new technology, the G-sync display technology can completely synchronize a display picture with a graphics processor in display equipment no matter how fast the display picture is refreshed, so that incomparable game experience can be provided. By utilizing the G-sync display technology, a game scene can be immediately presented to the eyes of a user, objects are clearer and sharper, and the game becomes smoother.
The inventor finds that at least the following problems exist in the prior art: at present, display equipment matched with a G-sync display technology on the market is quick-response display equipment with high refresh frequency, obvious flicker can be seen in a display picture at the moment of refreshing frequency switching, and a user can feel visual jitter due to the flicker, so that the game experience of the user is influenced.
Disclosure of Invention
The present invention is directed to at least one of the technical problems of the prior art, and provides a flicker adjustment circuit and method for a display screen, and a display device.
The technical scheme adopted for solving the technical problem of the invention is a display image flicker regulating circuit, which comprises:
the identification module is used for identifying a first refresh frequency of a current frame display picture and a refresh frequency of a next frame display picture according to the refresh frequency control signal;
the acquisition module is used for acquiring first brightness corresponding to a preset gray scale at a first refreshing frequency and second brightness corresponding to a preset gray scale at a second refreshing frequency according to the corresponding relation between the gray scale and the brightness at different refreshing frequencies;
and the compensation module is used for compensating the second brightness of the next frame of display picture according to the difference value of the second brightness and the first brightness.
Optionally, the compensation module is specifically configured to adjust a gray scale signal input at a second refresh frequency according to a difference between the first brightness and the second brightness.
Optionally, the compensation module is specifically configured to adjust the luminance of the backlight provided by the backlight source according to a difference between the first luminance and the second luminance.
Optionally, the correspondence between the gray scale and the brightness at different refresh frequencies is stored in a look-up table.
Optionally, the refresh frequency is inversely proportional to the gray scale for the same brightness.
Optionally, the display flicker adjustment circuit further comprises:
and the refresh frequency control module is used for outputting a refresh frequency control signal according to the user requirement so as to control the first refresh frequency of the current frame display picture and the second refresh frequency of the next frame display picture.
The technical scheme adopted for solving the technical problem of the invention is a display device which comprises a display panel and the display picture flicker adjusting circuit.
Optionally, the display panel comprises a plurality of pixel modules; each pixel module is provided with a pixel circuit; a thin film transistor is arranged in the pixel circuit;
and the leakage current value of the thin film transistor is smaller than a preset leakage current value.
Optionally, the display device further comprises:
and the grid signal adjusting circuit is used for adjusting a non-working level signal input to the grid of the thin film transistor according to the type of the thin film transistor and a preset leakage current value.
The technical scheme adopted for solving the technical problem of the invention is a display image flicker adjusting method, which comprises the following steps:
identifying a first refresh frequency of a current frame display picture and a refresh frequency of a next frame display picture according to the refresh frequency control signal;
acquiring first brightness corresponding to a preset gray scale at a first refreshing frequency and second brightness corresponding to a preset gray scale at a second refreshing frequency according to the corresponding relation between the gray scale and the brightness at different refreshing frequencies;
and compensating the second brightness of the next frame of display picture according to the difference value of the first brightness and the second brightness.
Drawings
Fig. 1 is a schematic structural diagram of a flicker adjustment circuit for displaying images according to an embodiment of the present invention;
FIG. 2 is a diagram showing the relationship between the leakage current of the TFT and the brightness of the display screen;
FIGS. 3a and 3b are graphs showing the relationship between different low level signals and the flicker intensity of each point in the display panel;
fig. 4 is a flowchart illustrating a method for adjusting flicker of a display screen according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
At the moment of switching refresh frequency, a current frame display picture and a next frame display picture may be in the same gray scale but in different refresh frequencies, and at this moment, the brightness of the current frame display picture and the brightness of the next frame display picture have a certain difference. If the brightness difference is too large, the display screen is easy to flicker obviously, and the flicker can make the user feel the visual jitter and influence the game experience of the user. In order to solve the problem that a display picture flickers when a display device matched with a G-sync display technology is switched in a refreshing frequency at present, the embodiment of the invention provides a display picture flickering adjusting circuit, a method and a display device. The display flicker adjustment circuit, the display flicker adjustment method, and the display device according to the embodiments of the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Example one
Fig. 1 is a schematic structural diagram of a display flicker adjustment circuit according to an embodiment of the present invention, and as shown in fig. 1, the display flicker adjustment circuit includes: an identification module 101, an acquisition module 102 and a compensation module 103. The identifying module 101 is configured to identify a first refresh frequency of a current frame display frame and a refresh frequency of a next frame display frame according to the refresh frequency control signal. The obtaining module 102 is configured to obtain first brightness corresponding to a preset gray scale at a first refresh frequency and second brightness corresponding to a preset gray scale at a second refresh frequency according to a corresponding relationship between gray scales and brightness at different refresh frequencies. The compensation module 103 compensates the brightness of the next frame of display image according to the difference between the first brightness and the second brightness.
In the flicker adjustment circuit for a display screen according to the embodiment of the present invention, the magnitude of the refresh frequency of the display screen may be determined by an input refresh frequency control signal, where the refresh frequency control signal may be a vertical synchronization signal VSYNC, or may be a start signal STV, and at the time of switching the refresh frequency, the identification module 101 may identify the first refresh frequency of the display screen of the current frame and the refresh frequency of the display screen of the next frame according to the input new frequency control signal, and in this embodiment and the following embodiments, the example that the second refresh frequency is smaller than the first refresh frequency will be described. Because the actual brightness corresponding to the same gray scale is different at different refresh rates, the obtaining module 102 may obtain a first brightness corresponding to a preset gray scale at a first refresh frequency and a second brightness corresponding to a preset gray scale at a second refresh frequency according to a correspondence between gray scales and brightness at different refresh frequencies, where the preset gray scale of the current frame display frame before and after the refresh frequency is switched is the same as the preset gray scale of the next frame display frame. The compensation module 103 may calculate a difference between the first luminance and the second luminance, and compensate the actual luminance of the next frame of the display image according to the difference. Because the second refresh frequency is less than the first refresh frequency, and the actual brightness corresponding to the same gray scale at the second refresh frequency is less than the actual brightness corresponding to the first refresh frequency, the display flicker adjustment circuit provided in the embodiments of the present invention can compensate the actual brightness of the next frame of display after the refresh frequency is switched with the actual brightness of the current frame of display as a reference, so that the actual brightness of the next frame display picture is basically consistent with the actual brightness of the current frame display picture, thus, the difference between the brightness of the display picture of the current frame and the brightness of the display picture of the next frame can be reduced or even avoided, so that the flicker can not be seen by the user when the refresh frequency is switched, therefore, the user can be prevented from feeling visual jitter, the user is enabled to be concentrated in the smooth game and not influenced by flickering of the display picture, and the use experience of the user can be improved.
In some embodiments, the compensation module 103 is specifically configured to adjust the gray scale signal input at the second refresh frequency according to a difference between the first brightness and the second brightness.
It should be noted that the compensation module 103 may compensate the brightness of the display frame of the next frame after the refresh frequency is switched. Specifically, the method can be realized by adjusting the gray scale signal input at the second refresh frequency. In a specific example, the first refresh frequency may be 144 hertz (Hz), the gray scale value of the gray scale signal input by the current display frame is 128 at the refresh frequency of 144Hz, the refresh frequency of the display frame is suddenly switched to 48Hz in the next frame, and if no processing is performed, the brightness corresponding to the gray scale signal with the gray scale value of 128 at the refresh frequency of 48Hz is less than the brightness corresponding to the gray scale signal with the gray scale value of 128 at the refresh frequency of 144 Hz. After the identification module 101 identifies that the refresh frequency of the display screen is switched from the first refresh frequency of 144Hz to the second refresh frequency of 48Hz, the obtaining module 102 may obtain a first luminance corresponding to the gray scale signal with the gray scale value of 128 at the refresh frequency of 144Hz and a second luminance corresponding to the gray scale signal with the gray scale value of 128 at the refresh frequency of 48Hz, where the two luminances may have a certain difference. The compensation module 103 may adjust the gray-scale value of the next frame to 129 or 130, or other gray-scale values greater than 128 gray-scale values, and the specific gray-scale value may be determined according to the difference between the second brightness and the first brightness. The actual brightness of the next frame of display picture can be improved in the above mode, the actual brightness of the next frame of display picture is basically consistent with the actual brightness of the current frame of display picture, so that the difference between the brightness of the current frame of display picture and the brightness of the next frame of display picture can be reduced and even avoided, and therefore the flicker cannot be seen by a user when the refreshing frequency is switched, the user can be prevented from feeling visual jitter, the user can be enabled to be absorbed in a smooth game, the flicker influence of the display picture is avoided, and the use experience of the user can be improved.
In some embodiments, the compensation module 103 is specifically configured to adjust the brightness of the backlight provided by the backlight source according to a difference between the first brightness and the second brightness.
It should be noted that the compensation module 103 may compensate the brightness of the display frame of the next frame after the refresh frequency is switched. In particular, this can be achieved by adjusting the brightness of the backlight provided by the backlight. In a specific example, the first refresh frequency may be 144Hz, the second refresh frequency may be 48Hz, and both when a current frame displayed at 144Hz displays a picture and when a next previous frame displayed at 48Hz displays a picture, a gray scale signal with a gray scale value of 128 is input, and at this time, the brightness corresponding to the gray scale signal with the gray scale value of 128 at the 48Hz refresh frequency is less than the brightness corresponding to the gray scale signal with the gray scale value of 128 at the 144Hz refresh frequency. After the identification module 101 identifies that the first refresh frequency of 144Hz is switched to the second refresh frequency of 48Hz, the obtaining module 102 obtains a first brightness corresponding to the gray scale signal with the gray scale value of 128 at the refresh frequency of 144Hz and a second brightness corresponding to the gray scale signal with the gray scale value of 128 at the refresh frequency of 48Hz, where the two brightnesses have a certain difference. The compensation module 103 can output a backlight brightness adjustment signal to control the brightness of the backlight provided by the backlight source in the backlight module, so that the brightness of the backlight at the refresh frequency of 48Hz is increased, and thus the actual brightness of the next frame of display image is substantially consistent with the actual brightness of the current frame of display image, which can reduce or even avoid the difference between the brightness of the current frame of display image and the brightness of the next frame of display image, and therefore, the user can not see the flicker when the refresh frequency is switched, thereby avoiding the user from feeling the visual jitter, and making the user concentrate on the smooth game without being influenced by the flicker of the display image, and further improving the user experience.
It can be understood that the compensation module 103 may implement the compensation of the second brightness of the next frame of display picture only in one of the two manners, or implement the compensation of the second brightness of the next frame of display picture in the two manners at the same time, and the specific implementation manner may be determined according to practical applications, and different functions may be implemented by setting a specific circuit structure in the compensation module 103.
In some embodiments, the correspondence between gray levels and brightness levels at different refresh frequencies is stored in a look-up table.
It should be noted that, in practical applications, the display frame may be pre-displayed at different refresh frequencies, and during the pre-display process, the corresponding relationship between the gray scale and the brightness at different refresh frequencies may be stored to form a lookup table. When the brightness of the display picture needs to be adjusted in a mode of adjusting the input gray scale signals under different refreshing frequencies, a table look-up mode can be adopted, the gray scale corresponding to certain brightness under the corresponding refreshing frequency is quickly and accurately determined, so that the corresponding gray scale signals are input, the actual brightness of the next frame of display picture is basically consistent with the actual brightness of the current frame of display picture, and thus, the difference between the brightness of the current frame of display picture and the brightness of the next frame of display picture can be reduced and even avoided, therefore, the flicker cannot be seen by a user when the refreshing frequency is switched, the visual jitter can be avoided being felt by the user, the user is enabled to be concentrated in a smooth game without being influenced by the flicker of the display picture, and the use experience of the user can be improved.
In some embodiments, the refresh frequency is inversely proportional to the gray scale corresponding to the same luminance.
It should be noted that, corresponding to the same luminance, the refresh frequency is inversely proportional to the gray scale, so that when the display screen is suddenly switched from the high refresh frequency to the low refresh frequency, the gray scale value of the input gray scale signal can be properly increased to ensure that the luminance is basically unchanged and prevent the display screen from flickering. Or, when the display screen is suddenly switched from the low refresh frequency to the high refresh frequency, the gray scale value of the input gray scale signal can be properly reduced in order to ensure that the brightness is basically unchanged and avoid the display screen from flickering. Therefore, the brightness of the display picture can be adjusted in a mode of adjusting the input gray scale signal so as to reduce or even avoid the difference between the brightness of the display picture of the current frame and the brightness of the display picture of the next frame, so that the flicker cannot be seen by a user when the refreshing frequency is switched, the user can be prevented from feeling visual jitter, the user can be concentrated in a smooth game and is not influenced by the flicker of the display picture, and the use experience of the user can be improved.
In some embodiments, as shown in fig. 1, the display flicker adjustment circuit further comprises: the refresh frequency control module 201 is configured to output a refresh frequency control signal according to a user requirement, so as to control a first refresh frequency of a current frame display frame and a second refresh frequency of a next frame display frame.
It should be noted that, in order to meet the requirements of the user on different refresh rates of the display screen, in different game scenes, the refresh frequency control module 201 may output a refresh frequency control signal, where the refresh frequency control signal may be a vertical synchronization signal VSYNC or an initial signal STV, so that the real-time screen is switched at different refresh frequencies, and thus the game scene is immediately presented to the user, the objects are clearer and sharper, the game is smoother, and the user experience is further improved.
Example two
An embodiment of the present invention provides a display device including a display panel and a display screen flicker adjusting circuit as provided in the above embodiments. The display panel can be connected with display screen flicker regulating circuit, display screen flicker regulating circuit can be to display panel input adjustment signal, make the actual luminance of the next frame display screen that shows in the display panel and the actual luminance of the current frame display screen be unanimous basically, can reduce like this and even avoid the difference between the luminance of current frame display screen and the luminance of next frame display screen, consequently the user can not see the scintillation when can realize refreshing frequency switching, thereby can avoid making the user feel visual jitter, make the user be absorbed in among the smooth game, and do not receive the influence that the display screen flickers, and then can promote user's use experience. It can be understood that the display device may be a terminal display device such as a computer, a mobile phone, a tablet computer, or a smart television. The implementation principle of the display flicker adjusting circuit is similar to that of the display flicker adjusting circuit provided in the above embodiments, and is not described herein again.
In some embodiments, a display panel includes a plurality of pixel modules; each pixel module is provided with a pixel circuit; a thin film transistor is arranged in the pixel circuit; the leakage current value of the thin film transistor is smaller than the preset leakage current value.
The thin film transistor may be a switching transistor in the pixel circuit or a driving transistor in the pixel circuit, and in the embodiment of the present invention, the thin film transistor is taken as an example of the driving transistor. The thin film transistor in the display panel of the display device provided by the embodiment of the invention can reduce the leakage current by adjusting the thickness of the film layer, so that the leakage current is smaller than that of the thin film transistor in the related technology. Fig. 2 is a graph of the correspondence between the leakage current of the thin film transistor and the brightness of the display screen, as shown in fig. 2, the horizontal axis represents time, and the vertical axis represents the voltage amplitude converted by the brightness of the photoelectric probe. Therefore, the thickness of the film layer in the thin film transistor can be adjusted to reduce the leakage current, so that the brightness fluctuation of the display picture can be reduced, the flicker of the display picture can be reduced or avoided when the refreshing frequency is switched, the visual jitter can be avoided being felt by a user, the user can be concentrated in a smooth game and is not influenced by the flicker of the display picture, and the use experience of the user can be improved.
In some embodiments, the display device further comprises: and the grid signal adjusting circuit is used for adjusting a non-working level signal input to the grid of the thin film transistor according to the type of the thin film transistor and a preset leakage current value.
When a high level signal VGH is input to the gate of the N-type transistor, the source and the drain are turned on, the N-type transistor is turned on, and when a low level signal VGL is input to the gate of the N-type transistor, the source and the drain are turned off, and the N-type transistor is turned off. The P-type transistor is reversed. In the embodiment of the present invention, the transistor is an N-type transistor. In practical applications, a low level signal VGL, for example, a low level signal VGL of-5.5V or a low level signal VGL of-5.0V, may be input to the gate of the thin film transistor, as shown in fig. 3a and 3b, and the flicker intensity of each point in the display panel corresponding to the low level signal VGL of-5.0V is significantly lower than the flicker intensity of each point in the display panel corresponding to the low level signal VGL of-5.5V. It can be seen that, under the same low level signal VGL, the flicker intensity of each point in the display panel can be reduced by reducing the leakage current value of the thin film transistor in the embodiment of the invention. At the moment of refreshing frequency switching, the grid signal regulating circuit can improve the voltage value of the low level signal VGL input by the grid of the thin film transistor, and can further reduce the flicker intensity of each point in the display panel, thereby avoiding the user from feeling visual jitter, enabling the user to be concentrated in smooth games without being influenced by display screen flicker, and further improving the user use experience. .
EXAMPLE III
An embodiment of the present invention provides a method for adjusting flicker of a display screen, and fig. 4 is a schematic flow chart of the method for adjusting flicker of a display screen provided in an embodiment of the present invention, and as shown in fig. 4, the method for adjusting flicker of a display screen includes the following steps:
s401, according to the refresh frequency control signal, identifying a first refresh frequency of a current frame display picture and a refresh frequency of a next frame display picture.
S402, according to the corresponding relation between the gray scale and the brightness under different refreshing frequencies, obtaining a first brightness corresponding to a preset gray scale under a first refreshing frequency and a second brightness corresponding to the preset gray scale under a second refreshing frequency.
And S403, compensating the second brightness of the display picture of the next frame according to the difference value of the first brightness and the second brightness.
In the method for adjusting flicker of a display screen according to the embodiments of the present invention, the magnitude of the refresh frequency of the display screen may be determined by an input refresh frequency control signal, which may be a vertical synchronization signal VSYNC, or may be an initial signal STV. Because the actual brightness corresponding to the same gray scale is different at different refresh rates, the first brightness corresponding to the preset gray scale at the first refresh frequency and the second brightness corresponding to the preset gray scale at the second refresh frequency can be obtained according to the corresponding relationship between the gray scale and the brightness at different refresh frequencies, and the preset gray scale of the current frame display frame before and after the refresh frequency is switched is the same as the preset gray scale of the next frame display frame. The difference between the first brightness and the second brightness can be calculated, and the actual brightness of the next frame of display picture can be compensated according to the difference. Because the second refresh frequency is less than the first refresh frequency, and the actual brightness corresponding to the same gray scale at the second refresh frequency is less than the actual brightness corresponding to the first refresh frequency, the flicker adjustment method for a display screen provided by the embodiment of the invention can compensate the actual brightness of the next frame of display screen after the refresh frequency is switched by taking the actual brightness of the current frame of display screen as reference, so that the actual brightness of the next frame display picture is basically consistent with the actual brightness of the current frame display picture, thus, the difference between the brightness of the display picture of the current frame and the brightness of the display picture of the next frame can be reduced or even avoided, so that the flicker can not be seen by the user when the refresh frequency is switched, therefore, the user can be prevented from feeling visual jitter, the user is enabled to be concentrated in the smooth game and not influenced by flickering of the display picture, and the use experience of the user can be improved.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A display flicker adjustment circuit, comprising:
the identification module is used for identifying a first refresh frequency of a current frame display picture and a refresh frequency of a next frame display picture according to the refresh frequency control signal;
the acquisition module is used for acquiring first brightness corresponding to a preset gray scale at a first refreshing frequency and second brightness corresponding to a preset gray scale at a second refreshing frequency according to the corresponding relation between the gray scale and the brightness at different refreshing frequencies;
and the compensation module is used for compensating the second brightness of the next frame of display picture according to the difference value of the second brightness and the first brightness.
2. The flicker adjustment circuit for display screen according to claim 1, wherein the compensation module is specifically configured to adjust the gray-scale signal input at the second refresh frequency according to a difference between the first brightness and the second brightness.
3. The flicker adjustment circuit for display screen according to claim 1, wherein the compensation module is specifically configured to adjust the luminance of the backlight provided by the backlight source according to a difference between the first luminance and the second luminance.
4. The flicker adjustment circuit for display screens according to claim 2, wherein the correspondence between the gray scale and the brightness at different refresh frequencies is stored in a look-up table.
5. The picture flicker adjustment circuit of claim 2, wherein the refresh rate is inversely proportional to the gray scale for a same luminance.
6. The display flicker adjustment circuit of claim 1, further comprising:
and the refresh frequency control module is used for outputting a refresh frequency control signal according to the user requirement so as to control the first refresh frequency of the current frame display picture and the second refresh frequency of the next frame display picture.
7. A display device comprising a display panel and the display flicker adjustment circuit according to any one of claims 1 to 6.
8. The display device according to claim 7, wherein the display panel includes a plurality of pixel modules; each pixel module is provided with a pixel circuit; a thin film transistor is arranged in the pixel circuit;
and the leakage current value of the thin film transistor is smaller than a preset leakage current value.
9. The display device according to claim 8, further comprising:
and the grid signal adjusting circuit is used for adjusting a non-working level signal input to the grid of the thin film transistor according to the type of the thin film transistor and a preset leakage current value.
10. A display flicker adjustment method, comprising:
identifying a first refresh frequency of a current frame display picture and a refresh frequency of a next frame display picture according to the refresh frequency control signal;
acquiring first brightness corresponding to a preset gray scale at a first refreshing frequency and second brightness corresponding to a preset gray scale at a second refreshing frequency according to the corresponding relation between the gray scale and the brightness at different refreshing frequencies;
and compensating the second brightness of the next frame of display picture according to the difference value of the first brightness and the second brightness.
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