CN113990269A - Display, display terminal and display compensation method - Google Patents
Display, display terminal and display compensation method Download PDFInfo
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- CN113990269A CN113990269A CN202111306154.XA CN202111306154A CN113990269A CN 113990269 A CN113990269 A CN 113990269A CN 202111306154 A CN202111306154 A CN 202111306154A CN 113990269 A CN113990269 A CN 113990269A
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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
- G09G3/36—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
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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
- G09G3/22—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]
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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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
Abstract
The application relates to a display, a display terminal and a display compensation method, wherein the display comprises a time schedule controller and a display panel, the time schedule controller is provided with a brightness compensation meter, and the time schedule controller comprises: the frequency detection module is used for detecting the current refreshing frequency of the display panel; the brightness compensation module is used for determining the charging time corresponding to the current refreshing frequency of the display panel according to the brightness compensation table and the current refreshing frequency of the display panel; and the processing module is used for charging the display panel according to the charging time so as to control the picture display. The charging time corresponding to the current refreshing frequency of the display panel is determined by utilizing the brightness compensation table and the current refreshing frequency of the display panel, the electric leakage phenomenon of the display during the refreshing frequency switching can be reduced, the problem that the self-adaptive synchronous authentication cannot be passed due to the large brightness difference of the display in the self-adaptive synchronous authentication process of the picture is solved, and the early-stage and later-stage verification of product development is facilitated.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display, a display terminal, and a display compensation method.
Background
In recent years, the display choice has become more and more diversified due to the heat of the electric competition market. Among them, FreeSync technology (picture adaptive synchronization technology) has gradually become a key functional technical index in the field of mainstream electric competition display at present. The FreeSeync technology is also called as a variable Refresh Rate (DRR) technology, the Refresh frequency of a display can be adjusted according to a display picture, and the problems of image tearing and fluctuation are solved by dynamically adjusting the Refresh Rate of the display to be matched with the Refresh Rate of a display card, so that the game experience with smooth pictures is improved.
In practical applications, displays employing FreeSeSync technology require FreeSeSync authentication by the associated mechanisms. For example, one of the standards for FreeSync authentication is that, within the frequency variation range of the display frame, the ratio of the luminance difference to the frequency difference is less than or equal to 0.03nit/Hz, i.e., Lmax-Lmin/Fmax-Fmin ≦ 0.03, where Lmax and Lmin are the maximum and minimum values of luminance, and Fmax and Fmin are the maximum and minimum values of frequency, respectively. In addition, during the process of refreshing display on the display screen, a certain time interval (blank area) exists from the end of refreshing one frame of picture to the beginning of refreshing the next frame of picture.
Fig. 1 shows a schematic diagram of picture frames at different refresh frequencies in the related art. As shown in fig. 1, case 11 includes active frames 111 at a normal refresh frequency, a time interval 112 in the vertical direction, and picture frames 113, and case 12 includes active frames 121 at a low refresh frequency, a time interval 122 in the vertical direction, and picture frames 123, where the low refresh rate is less than the normal refresh rate.
Fig. 2 is a diagram illustrating a picture frame at different refresh frequencies in the related art. As shown in fig. 2, in the normal mode (normal mode) with a refresh frequency of 60Hz, the length of the active frame 21 is greater than the length of the time interval 22; in an adaptive mode (freesync mode) with a refresh frequency of 60Hz, the length of the active frame is less than the length of the time interval; in the case of a refresh frequency of 240Hz, the active frame may be divided by a number of narrower time intervals.
As can be seen from fig. 1 and 2, in the related art, the variation of the refresh frequency is realized by adjusting the length of the time interval (i.e., blank, also called vertical blank region). However, due to the limitation of the in-plane process technology, when the refresh frequency of the display screen is reduced, the time interval is lengthened, the more serious the leakage phenomenon in the display screen is, and further the brightness difference under different refresh frequencies is larger, so that human eyes can feel obvious flicker, and cannot pass through the self-adaptive synchronous authentication of the picture.
Disclosure of Invention
In view of this, the present application provides a display, a display terminal and a display compensation method, which can reduce the leakage phenomenon of the display when the refresh frequency is switched, improve the problem that the adaptive synchronous authentication cannot be passed due to a large brightness difference of the display in the process of the picture adaptive synchronous authentication, facilitate the verification of the product in the early stage and the later stage of the development, further shorten the development period of the product, and facilitate the mass production.
According to an aspect of the present application, a display is provided, where the display includes a timing controller and a display panel, the timing controller is electrically connected to the display panel, where a brightness compensation table is configured in the timing controller, and the timing controller includes a frequency detection module, a brightness compensation module, and a processing module, where the frequency detection module is electrically connected to the brightness compensation module, and the frequency detection module is configured to detect a current refresh frequency of the display panel; the brightness compensation module is electrically connected with the frequency detection module and the processing module respectively and is used for determining the charging time corresponding to the current refreshing frequency of the display panel according to the brightness compensation table and the current refreshing frequency of the display panel; and the processing module is electrically connected with the brightness compensation module and used for charging the display panel according to the charging time so as to control the display panel to display pictures.
Furthermore, the display panel includes a plurality of scan lines, a plurality of data lines, and a plurality of pixel units, each pixel unit is at least electrically connected to one scan line and one data line, each pixel unit is arranged in a row and column manner, the plurality of scan lines are used for controlling the pixel units in each row to be turned on in turn, the plurality of data lines are used for writing data into each pixel unit, for any one pixel unit, a scan signal on the scan line corresponding to the pixel unit is a first scan signal, a data signal on the data line corresponding to the pixel unit is a first data signal, and a time between a falling edge of the first scan signal and a rising edge of the first data signal is the charging time.
Further, the brightness compensation module comprises a frequency determination module and a time determination module, wherein the frequency determination module is electrically connected with the time determination module, and the frequency determination module is used for determining a refresh frequency range in which a current refresh frequency of the display panel is located according to the current refresh frequency of the display panel; and the time determining module is used for determining the charging time corresponding to the current refreshing frequency of the display panel according to the refreshing frequency range where the current refreshing frequency of the display panel is located and the brightness compensation table.
Further, a plurality of refresh frequency ranges are set in the brightness compensation table, and each refresh frequency range is associated with the charging time corresponding to the refresh frequency range.
Furthermore, the widths of the refresh frequency ranges in the brightness compensation table are equal and are arranged in sequence according to the size of the maximum value of each refresh frequency range.
Furthermore, the charging time corresponding to each refreshing frequency range sequentially arranged in the brightness compensation table is distributed in an arithmetic progression.
Further, when the current refresh frequency of the display panel is in a first refresh frequency range, the charging time is a first charging time; and when the current refresh frequency of the display panel is in a second refresh frequency range, the charging time is second charging time, wherein the maximum value of each refresh frequency in the first refresh frequency range is less than or equal to the minimum value of each refresh frequency in the second refresh frequency range, and the first charging time corresponding to the first refresh frequency range is greater than the second charging time corresponding to the second refresh frequency.
The processing module further includes a first processing module and a second processing module, the first processing module is electrically connected to the second processing module, wherein the first processing module is configured to adjust a time sequence between a plurality of scanning signals on the plurality of scanning lines and a plurality of data signals on the plurality of data lines corresponding to the charging time according to the charging time, obtain a plurality of adjusted scanning signals and a plurality of adjusted data signals, and send the plurality of adjusted scanning signals and the plurality of adjusted data signals to the second processing module; the second processing module is configured to charge the display panel according to the adjusted plurality of scanning signals and the plurality of data signals, so as to control the display panel to display a picture.
According to another aspect of the present application, there is provided a display terminal including a terminal body and the display, the terminal body being connected with the display.
According to another aspect of the present application, there is provided a display compensation method for the display, the method comprising: detecting the current refreshing frequency of the display panel; determining the charging time corresponding to the current refreshing frequency of the display panel according to the brightness compensation table and the current refreshing frequency of the display panel; and charging the display panel according to the charging time so as to control the display panel to display the picture.
The current refreshing frequency of the display panel is detected by using the frequency detection module, then the charging time corresponding to the current refreshing frequency of the display panel is determined by using the brightness compensation module according to the brightness compensation table and the current refreshing frequency of the display panel, and finally the display panel is charged by using the processing module according to the charging time to control the display panel to display a picture.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 shows a schematic diagram of picture frames at different refresh frequencies in the related art.
Fig. 2 is a diagram illustrating a picture frame at different refresh frequencies in the related art.
Fig. 3 shows a block diagram of a display of an embodiment of the application.
Fig. 4 is a schematic diagram illustrating a driving timing of a display panel according to an embodiment of the present application.
Fig. 5 shows a block diagram of a brightness compensation module according to an embodiment of the present application.
FIG. 6 shows a block diagram of a processing module of an embodiment of 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 should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.
The application provides a display, which comprises a time schedule controller and a display panel, wherein the time schedule controller is electrically connected with the display panel, a brightness compensation table is configured in the time schedule controller, the time schedule controller comprises a frequency detection module, a brightness compensation module and a processing module, the frequency detection module is electrically connected with the brightness compensation module, and the frequency detection module is used for detecting the current refreshing frequency of the display panel; the brightness compensation module is electrically connected with the frequency detection module and the processing module respectively and is used for determining the charging time corresponding to the current refreshing frequency of the display panel according to the brightness compensation table and the current refreshing frequency of the display panel; and the processing module is electrically connected with the brightness compensation module and used for charging the display panel according to the charging time so as to control the display panel to display pictures.
The method comprises the steps of detecting the current refreshing frequency of the display panel by using a frequency detection module, determining the charging time corresponding to the current refreshing frequency of the display panel by using a brightness compensation module according to a brightness compensation table and the current refreshing frequency of the display panel, and finally controlling the display panel to display a picture by using a processing module to charge the display panel according to the charging time.
Fig. 3 shows a block diagram of a display of an embodiment of the application.
As shown in fig. 3, the display 10 includes a timing controller 30 and a display panel 20, and the timing controller is electrically connected to the display panel. The timing controller includes a frequency detecting module 31, a brightness compensating module 32 and a processing module 33. It is understood that the display panel of the embodiment of the present application may further include other components such as a power supply, a communication interface, and the like, and the present application is not limited to the other components of the display.
Further, the timing controller may be used to control the display panel. The display panel can display pictures at different refreshing frequencies. For example, the display panel may display a screen at a refresh frequency of 48Hz, or may display a screen at a refresh frequency of 72 Hz. In the case where the refresh frequency of the display panel is fixed, the display panel may display a plurality of frames of pictures in chronological order.
The time sequence controller is provided with a brightness compensation table and comprises a frequency detection module, a brightness compensation module and a processing module. The brightness compensation table may be preset in the processing module, or a memory may be additionally provided in the timing controller for storing the brightness compensation table in advance, and the processing module may read the preset brightness compensation table from the memory. In practical application, each module of the timing controller can be located in the same region or different regions; each module of the time schedule controller can exchange data or signals in a wired communication mode and can also exchange data or signals in a wireless mode. It is to be understood that the present application is not limited to the position and communication manner of each module of the timing controller.
Further, the frequency detection module is electrically connected with the brightness compensation module, and is used for detecting the current refresh frequency of the display panel. For example, in the detecting process, a frame start signal (i.e., STV) of each frame in the display frame can be detected, so as to determine a refresh frequency corresponding to the frame. It is understood that the present application is not limited to how to detect the current refresh frequency of the display panel.
Further, a brightness compensation module, electrically connected to the frequency detection module and the processing module, respectively, is configured to determine, according to the brightness compensation table and the current refresh frequency of the display panel, a charging time corresponding to the current refresh frequency of the display panel. In an actual working process, the brightness compensation table may be searched according to the current refresh frequency of the display panel, and the charging time corresponding to the current refresh frequency of the display panel is determined in the brightness compensation table.
Further, the processing module is electrically connected to the brightness compensation module and configured to charge the display panel according to the charging time so as to control the display panel to display a picture. The processing module may include a processor and peripheral circuitry such as an interface electrically connected to the processor. It is to be understood that the present application is not limited to the specific implementation of the processing module.
Furthermore, the display panel includes a plurality of scan lines, a plurality of data lines, and a plurality of pixel units, each pixel unit is electrically connected to at least one scan line and one data line, each pixel unit is arranged in a row-column manner, the plurality of scan lines are used for controlling the pixel units in each row to be turned on in turn, and the plurality of data lines are used for writing data into each pixel unit.
The Display panel may be a Display panel using an Organic Light-Emitting Diode (OLED) technology, or may be a Display panel using a Thin Film Transistor Liquid Crystal Display (TFT-LCD) technology. In the embodiments of the present application, the general structure of the display panel is specifically described above for convenience of description. However, it will be understood by those skilled in the art that the foregoing description is not intended to limit the spirit of the invention of this application. For example, one scan line may be shared by every two rows of pixel units in the display panel. The present application is not limited to how the inside of the display panel is arranged and how each pixel unit is driven.
Fig. 4 is a schematic diagram illustrating a driving timing of a display panel according to an embodiment of the present application.
As shown in fig. 4, Gn may represent a scanning signal on an nth scanning line corresponding to an nth row of pixel units in the display panel, taking as an example that each row of pixel units in the display panel corresponds to one scanning line; accordingly, Data may represent the Data signal applied for each of the n-th row of pixel cells. It should be noted that the embodiment of the present application is described by taking the pixel unit in the nth row as an example. The pixel units of other rows of the display panel may be configured as needed based on the inventive concept of the present application. In addition, the charging time of a single pixel unit can be more finely controlled based on the inventive concept of the present application. It is to be understood that the application is not limited to how the pixel unit is scanned.
For any pixel unit, the scanning signal on the scanning line corresponding to the pixel unit is a first scanning signal, the data signal on the data line corresponding to the pixel unit is a first data signal, and the time between the falling edge of the first scanning signal and the rising edge of the first data signal is the charging time.
In fig. 4, when the refresh frequency of the display panel is switched from a higher refresh frequency to a lower refresh frequency, the charging time may be increased, so that the corresponding pixel unit can have more sufficient time to be charged. For example, in fig. 4, for a range of refresh frequency from 96Hz to 120Hz, the Charging time (i.e., Charging time) is 2us (i.e., microseconds), and the high level duration of the corresponding data signal at this time is 15 us; for the range of the refresh frequency from 72Hz to 96Hz, the charging time is 3us, and the high level duration of the corresponding data signal is 15us at the moment; for a refresh frequency ranging from 48Hz to 72Hz, the charging time is 4us, while the duration of the high level of the corresponding data signal is still 15 us.
Therefore, referring to fig. 4, it can be seen that in the embodiment of the present application, the charging time corresponding to different refresh frequencies is switched by the timing controller, and the charging time is adjusted to compensate for the problem of serious leakage caused by the limitation of the in-plane process technology, so as to reduce the brightness difference generated by the switching of the refresh frequencies in the adaptive synchronous authentication process, thereby improving the flicker phenomenon of the picture and enabling the display to smoothly pass the adaptive synchronous authentication.
Fig. 5 shows a block diagram of a brightness compensation module according to an embodiment of the present application.
As shown in fig. 5, the brightness compensation module may include a frequency determination module 51 and a time determination module 52, and the frequency determination module is electrically connected to the time determination module. The frequency determining module is used for determining a refresh frequency range in which the current refresh frequency of the display panel is located according to the current refresh frequency of the display panel; and the time determining module is used for determining the charging time corresponding to the current refreshing frequency of the display panel according to the refreshing frequency range where the current refreshing frequency of the display panel is located and the brightness compensation table.
Further, a plurality of refresh frequency ranges are set in the brightness compensation table, and each refresh frequency range is associated with the charging time corresponding to the refresh frequency range. For example, each refresh frequency range may be positively correlated with the charging time corresponding to the refresh frequency range, that is, the larger the refresh frequency in each refresh frequency range is, the longer the charging time corresponding to the refresh frequency range is; the charging time corresponding to each refresh frequency range and the refresh frequency range may be in negative correlation, that is, the charging time corresponding to each refresh frequency range is shorter as the refresh frequency in each refresh frequency range is higher. Preferably, in the embodiment of the present application, each refresh frequency range may have a negative correlation with the charging time corresponding to the refresh frequency range.
Furthermore, the widths of the refresh frequency ranges in the brightness compensation table are equal and are arranged in sequence according to the size of the maximum value of each refresh frequency range. For example, in FIG. 4, from 96Hz to 120Hz, the width of the range of refresh frequencies is 24 Hz; from 72Hz to 96Hz, the width of the range of refresh frequencies is also 24 Hz; the width of the range of refresh frequencies is again 24Hz from 48Hz to 72 Hz.
Furthermore, the charging time corresponding to each refreshing frequency range sequentially arranged in the brightness compensation table is distributed in an arithmetic progression. Referring to fig. 4, in fig. 4, for a range of a refresh frequency from 96Hz to 120Hz, the charging time is 2us, and the duration of the high level of the corresponding data signal at this time is 15 us; for the range of the refresh frequency from 72Hz to 96Hz, the charging time is 3us, and the high level duration of the corresponding data signal is 15us at the moment; for a refresh frequency ranging from 48Hz to 72Hz, the charging time is 4us, while the duration of the high level of the corresponding data signal is still 15 us. The three refresh frequency ranges from 48Hz to 120Hz are arranged in sequence, and the corresponding charging time ranges of 4us, 3us and 2us are the arithmetic progression with the arithmetic difference of 1 us. It is understood that, in practical applications, the charging time corresponding to each refresh frequency range may be configured according to practical applications, for example, the charging time corresponding to the refresh frequency range from 96Hz to 120Hz may be 1us, and the application is not limited to how to configure the charging time.
Further, when the current refresh frequency of the display panel is in a first refresh frequency range, the charging time is a first charging time; and when the current refresh frequency of the display panel is in a second refresh frequency range, the charging time is second charging time, wherein the maximum value of each refresh frequency in the first refresh frequency range is less than or equal to the minimum value of each refresh frequency in the second refresh frequency range, and the first charging time corresponding to the first refresh frequency range is greater than the second charging time corresponding to the second refresh frequency. That is, if the refresh frequency after the switching of the display panel is greater than the refresh frequency before the switching of the display panel, the charging time corresponding to the refresh frequency after the switching of the display panel may be less than the charging time corresponding to the refresh frequency before the switching of the display panel.
Because this application can increase the charge time under the low refresh frequency under the condition that satisfies display panel taste, need not to modify current in-plane design to reduce and probably cause cost and the expense of in-plane design rework, guarantee later stage verification and induction time, improve product development efficiency, reduce the cost input of research and development and the supporting facility of production line.
FIG. 6 shows a block diagram of a processing module of an embodiment of the present application.
As shown in fig. 6, the processing module further includes a first processing module 61 and a second processing module 62, and the first processing module is electrically connected to the second processing module. The first processing module is configured to adjust, according to the charging time, time sequences between a plurality of scanning signals on the plurality of scanning lines and a plurality of data signals on the plurality of data lines corresponding to the charging time to obtain a plurality of adjusted scanning signals and a plurality of adjusted data signals, and send the plurality of adjusted scanning signals and the plurality of adjusted data signals to the second processing module; the second processing module is configured to charge the display panel according to the adjusted plurality of scanning signals and the plurality of data signals, so as to control the display panel to display a picture.
Further, the display panel may include a normal display mode and an adaptive synchronization mode. In the normal display mode, the refreshing frequency of the picture displayed by the display panel can be kept unchanged; in the adaptive synchronous mode, the refresh frequency of the picture displayed by the display panel can be adaptively adjusted according to the display picture and changed.
Furthermore, a mode switching module is further arranged in the display, and the mode switching module can be electrically connected with the time sequence controller and is positioned at the front end of the time sequence controller. The mode switching module is used for switching the display panel from the normal display mode to the adaptive synchronous mode or from the adaptive synchronous mode to the normal display mode. The mode switching module can be electrically connected with the processor, performs mode switching according to an instruction of the processor, and sends a switched signal to the time schedule controller, so that the time schedule controller can know the current mode. In the embodiment of the present application, the display panel is mainly in the adaptive synchronization mode, i.e., FreeSync mode. It is to be understood that the present application is not limited to the specific implementation of the mode switching module.
The embodiment of the application further provides a display terminal, which comprises a terminal body and the display, wherein the terminal body is connected with the display.
In addition, the present application also provides a display compensation method, which is used for the display, and the method comprises the following steps:
step S11: detecting the current refreshing frequency of the display panel;
step S12: determining the charging time corresponding to the current refreshing frequency of the display panel according to the brightness compensation table and the current refreshing frequency of the display panel;
step S13: and charging the display panel according to the charging time so as to control the display panel to display the picture.
Furthermore, the display panel includes a plurality of scan lines, a plurality of data lines, and a plurality of pixel units, each pixel unit is at least electrically connected to one scan line and one data line, each pixel unit is arranged in a row and column manner, the plurality of scan lines are used for controlling the pixel units in each row to be turned on in turn, the plurality of data lines are used for writing data into each pixel unit, for any one pixel unit, a scan signal on the scan line corresponding to the pixel unit is a first scan signal, a data signal on the data line corresponding to the pixel unit is a first data signal, and a time between a falling edge of the first scan signal and a rising edge of the first data signal is the charging time.
Further, step S12 may include: step S121, determining a refresh frequency range in which the current refresh frequency of the display panel is located according to the current refresh frequency of the display panel; step S122: and determining the charging time corresponding to the current refreshing frequency of the display panel according to the refreshing frequency range of the current refreshing frequency of the display panel and the brightness compensation table.
Further, a plurality of refresh frequency ranges are set in the brightness compensation table, and each refresh frequency range is associated with the charging time corresponding to the refresh frequency range.
Furthermore, the widths of the refresh frequency ranges in the brightness compensation table are equal and are arranged in sequence according to the size of the maximum value of each refresh frequency range.
Furthermore, the charging time corresponding to each refreshing frequency range sequentially arranged in the brightness compensation table is distributed in an arithmetic progression.
Further, when the current refresh frequency of the display panel is in a first refresh frequency range, the charging time is a first charging time; and when the current refresh frequency of the display panel is in a second refresh frequency range, the charging time is second charging time, wherein the maximum value of each refresh frequency in the first refresh frequency range is less than or equal to the minimum value of each refresh frequency in the second refresh frequency range, and the first charging time corresponding to the first refresh frequency range is greater than the second charging time corresponding to the second refresh frequency.
Further, step S13 may include: step S131, adjusting the time sequence between the plurality of scanning signals on the plurality of scanning lines and the plurality of data signals on the plurality of data lines corresponding to the charging time according to the charging time to obtain a plurality of adjusted scanning signals and a plurality of adjusted data signals, and sending the plurality of adjusted scanning signals and the plurality of adjusted data signals to the second processing module; and step S132, charging the display panel according to the adjusted scanning signals and the adjusted data signals so as to control the display panel to display the picture.
It should be noted that the first processing module and the second processing module may use the same processor, or may use different processors respectively. When the first processing module and the second processing module adopt different processors, the different processors jointly execute the display compensation method; when the first processing module and the processing module may adopt the same processor, the same processor may be used to execute the display compensation method. It is to be understood that the present application is not limited to the type of processor.
To sum up, the present refresh frequency of the display panel is detected by using the frequency detection module, then the charging time corresponding to the present refresh frequency of the display panel is determined by using the brightness compensation module according to the brightness compensation table and the present refresh frequency of the display panel, and finally the display panel is controlled by using the processing module according to the charging time, so that the display panel performs the display of the picture, the electric leakage phenomenon of the display during the refresh frequency switching can be reduced, the problem that the self-adaptive synchronous authentication cannot be performed due to the large brightness difference of the display in the picture self-adaptive synchronous authentication process is solved, the verification of the product in the early stage and the later stage of the development is facilitated, the development period of the product is shortened, and the mass production is facilitated.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display, the display terminal and the display compensation method provided by the embodiment of the present application are introduced in detail, and a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the embodiment is only used to help understand the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A display is characterized in that the display comprises a time schedule controller and a display panel, the time schedule controller is electrically connected with the display panel, wherein a brightness compensation table is configured in the time schedule controller, the time schedule controller comprises a frequency detection module, a brightness compensation module and a processing module, wherein,
the frequency detection module is electrically connected with the brightness compensation module and is used for detecting the current refreshing frequency of the display panel;
the brightness compensation module is electrically connected with the frequency detection module and the processing module respectively and is used for determining the charging time corresponding to the current refreshing frequency of the display panel according to the brightness compensation table and the current refreshing frequency of the display panel;
and the processing module is electrically connected with the brightness compensation module and used for charging the display panel according to the charging time so as to control the display panel to display pictures.
2. The display device of claim 1, wherein the display panel comprises a plurality of scan lines, a plurality of data lines, and a plurality of pixel units, each pixel unit is electrically connected to at least one scan line and one data line, each pixel unit is arranged in rows and columns, the plurality of scan lines are used for controlling the pixel units in each row to be turned on in turn, the plurality of data lines are used for writing data into each pixel unit, wherein,
for any pixel unit, the scanning signal on the scanning line corresponding to the pixel unit is a first scanning signal, the data signal on the data line corresponding to the pixel unit is a first data signal, and the time between the falling edge of the first scanning signal and the rising edge of the first data signal is the charging time.
3. The display of claim 2, wherein the brightness compensation module comprises a frequency determination module and a time determination module, the frequency determination module being electrically connected to the time determination module, wherein,
the frequency determining module is used for determining a refresh frequency range in which the current refresh frequency of the display panel is located according to the current refresh frequency of the display panel;
and the time determining module is used for determining the charging time corresponding to the current refreshing frequency of the display panel according to the refreshing frequency range where the current refreshing frequency of the display panel is located and the brightness compensation table.
4. The display according to claim 3, wherein a plurality of refresh frequency ranges are provided in the brightness compensation table, each refresh frequency range being associated with a charging time corresponding to the refresh frequency range.
5. The display device according to claim 4, wherein the widths of the refresh frequency ranges in the brightness compensation table are equal and are arranged in order according to the magnitude of the maximum value of the refresh frequency ranges.
6. The display according to claim 5, wherein the charging time corresponding to each refreshing frequency range sequentially arranged in the brightness compensation table is distributed in an arithmetic progression.
7. The display according to claim 4, wherein the charging time is a first charging time when the current refresh frequency of the display panel is in a first refresh frequency range; when the current refresh frequency of the display panel is in a second refresh frequency range, the charging time is a second charging time, wherein,
the maximum value of each refresh frequency in the first refresh frequency range is less than or equal to the minimum value of each refresh frequency in the second refresh frequency range, and the first charging time corresponding to the first refresh frequency range is greater than the second charging time corresponding to the second refresh frequency range.
8. The display of claim 1, wherein the processing module further comprises a first processing module and a second processing module, the first processing module being electrically connected to the second processing module, wherein,
the first processing module is configured to adjust a time sequence between a plurality of scanning signals on the plurality of scanning lines and a plurality of data signals on the plurality of data lines corresponding to the charging time according to the charging time to obtain a plurality of adjusted scanning signals and a plurality of adjusted data signals, and send the plurality of adjusted scanning signals and the plurality of adjusted data signals to the second processing module;
the second processing module is configured to charge the display panel according to the adjusted plurality of scanning signals and the plurality of data signals, so as to control the display panel to display a picture.
9. A display terminal, characterized in that the display terminal comprises a terminal body and a display according to any one of claims 1 to 8, the terminal body being connected with the display.
10. A display compensation method for a display according to any one of claims 1 to 8, the method comprising:
detecting the current refreshing frequency of the display panel;
determining the charging time corresponding to the current refreshing frequency of the display panel according to the brightness compensation table and the current refreshing frequency of the display panel;
and charging the display panel according to the charging time so as to control the display panel to display the picture.
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