CN109345997B - Display driving method, display driving device and display device - Google Patents
Display driving method, display driving device and display device Download PDFInfo
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- 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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Abstract
The application discloses a display driving method, a display driving device and a display device, wherein the display driving method comprises the following steps: acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames; comparing the absolute value of the difference of the original display parameters of two adjacent frames at the same position with a first preset threshold; when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a second preset threshold; and when the absolute value of the difference of the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold value, modifying the color adjusting coefficient to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters. The technical scheme of the application can improve the display effect of the static picture.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display driving method, a display driving apparatus, and a display apparatus.
Background
In a display device, in order to improve the display effect, an original display signal directly received from a display signal source is usually subjected to certain processing, such as color optimization, gamma adjustment, jitter reduction, and the like, and a modified display signal obtained after the processing often has a large change compared with the original display signal. In particular, when the display device displays a static picture, due to the difference of the processing procedures, the difference of the corrected display parameters of two adjacent frames in the corrected display signal may be very large, which is inconsistent with the situation that there is no difference or very small difference between the original display parameters of two adjacent frames in the original display signal, and the difference is reflected on the final display picture, and appears as the jitter of the static picture, which results in the deterioration of the display effect.
Disclosure of Invention
The present application mainly aims to provide a display driving method, a display driving device and a display device, which aim to solve the above-mentioned problem of shaking of a static image and improve the display effect.
In order to achieve the above object, the present application provides a display driving method, including:
acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames;
comparing the absolute value of the difference of the original display parameters of two adjacent frames at the same position with a first preset threshold;
when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a second preset threshold;
and when the absolute value of the difference of the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold value, modifying the color adjusting coefficient to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters.
Optionally, after the step of comparing the absolute value of the difference between the original display parameters of two adjacent frames at the same position with the first preset threshold, the display driving method further includes the following steps:
when the absolute value of the difference of the original display parameters of two adjacent frames at the same position is larger than a first preset threshold value, keeping the color adjusting coefficient unchanged or modifying the color adjusting coefficient to increase the change of the modified display parameters of the same frame at the same position relative to the original display parameters; or the like, or, alternatively,
after the step of comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with the second preset threshold, the display driving method further includes the steps of:
and when the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position is less than or equal to a second preset threshold value, keeping the color adjusting coefficient unchanged or modifying the color adjusting coefficient to increase the change of the corrected display parameters of the same frame at the same position relative to the original display parameters.
Optionally, the first preset threshold is less than or equal to the second preset threshold.
Optionally, the step of obtaining the original display parameters before processing and the modified display parameters after processing of two adjacent frames includes:
receiving an original display signal transmitted after primary color processing and encoding according to a preset protocol;
decoding the received display signal according to the preset protocol;
carrying out color processing, gamma processing and dithering processing on the decoded display signal again to obtain a corrected display signal;
and acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames according to the original display signals and the corrected display signals.
Optionally, after the step of comparing the absolute value of the difference between the original display parameters of two adjacent frames at the same position with the first preset threshold, the display driving method further includes the following steps:
when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a third preset threshold;
and when the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding positions is greater than a third preset threshold, modifying the corrected display parameter of the current frame into the corrected display parameter of the previous frame.
To achieve the above object, the present application also proposes a display driving apparatus, which includes a first data control element configured to perform the following operations: acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames; comparing the absolute value of the difference of the original display parameters of two adjacent frames at the same position with a first preset threshold; when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a second preset threshold; and when the absolute value of the difference of the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold value, modifying the color adjusting coefficient to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters.
Optionally, the display driving apparatus includes a system-on-chip board and a timing control board, the first data control element is disposed on the system-on-chip board, and the first data control element is connected to a display signal source; the time sequence control board is connected with the system-on-chip board.
Optionally, the soc board includes a first color processing element, an encoding element, and a first frame buffer, the first color processing element is connected to the first data control element, and the first color processing element is configured to perform preliminary color processing on the original display signal received from the first data control element according to the color adjustment coefficient; the encoding element is connected with the first color processing element and is configured to encode the display signal subjected to the preliminary color processing according to a preset protocol; the first frame buffer is connected to the display signal source, the first data control element and the first color processing element, and the first frame buffer is configured to store original display parameters and modified display parameters of a previous frame.
Optionally, the timing control board includes a decoding element, a second color processing element, a gamma element, a dithering processing element, and a second data control element, the decoding element is connected to the system-on-chip board, and the decoding element is configured to decode a display signal received from the system-on-chip board according to a preset protocol; the second color processing element is connected with the decoding element and is configured to perform color processing again on the decoded display signal; the gamma element is connected with the second color processing element and is configured to perform gamma processing on the display signals subjected to the secondary color processing; the dithering processing element is connected with the gamma element and is configured to dither the gamma-processed display signal to generate modified display parameters of the current frame; the second data control element is coupled to the dithering processing element and the system-on-chip board, and the second data control element is configured to transmit the modified display parameters of the current frame received from the dithering processing element to the system-on-chip board.
To achieve the above object, the present application further proposes a display device, which includes a display panel and a display driving device, the display driving device including a first data control element configured to perform the following operations: acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames; comparing the absolute value of the difference of the original display parameters of two adjacent frames at the same position with a first preset threshold; when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a second preset threshold; and when the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold value, modifying the color adjustment coefficient to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters, wherein the display driving device is connected with the display panel and is set to drive the display of the display panel.
In the technical scheme of the application, the display driving method comprises the following steps: acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames; comparing the absolute value of the difference of the original display parameters of two adjacent frames at the same position with a first preset threshold; when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a second preset threshold; and when the absolute value of the difference of the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold value, modifying the color adjusting coefficient to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters. Judging whether the displayed picture is a static picture or not by comparing the absolute value of the difference between the original display parameters of two adjacent frames at the same position with a first preset threshold, judging whether the corrected display parameters have large changes or not by comparing the absolute value of the difference between the original display parameters of two adjacent frames at the corresponding position with a second preset threshold, indicating that the corrected display parameters corresponding to the static picture have large changes when the absolute value of the difference between the corrected display parameters of two adjacent frames is larger than the second preset threshold, possibly causing picture jitter, and then modifying the color adjustment coefficient to reduce the changes of the corrected display parameters of the same frame at the same position relative to the original display parameters, thereby ensuring that the finally displayed picture is also static, the display signal is consistent with the original display signal, thereby avoiding the shaking of the picture and improving the display effect.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of an exemplary display driver;
FIG. 2 is a schematic flow chart diagram illustrating an embodiment of a display driving method according to the present application;
FIG. 3 is a schematic structural diagram of an embodiment of a display driving device according to the present application;
fig. 4 is a schematic structural diagram of an embodiment of a display device according to the present application.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part 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.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
In one example, the display driving apparatus is configured as shown in fig. 1, and includes a System On Chip (SOC) board 100 'and a timing control board (TCON) 200', wherein an arrow represents a flowing direction of a display signal. During the operation of the display driving apparatus, the SOC100 ' receives an original display signal from a display signal source, the original display signal is processed by the first color processing element 110 ', and is encoded in the encoding element 120 ' according to a predetermined protocol, so as to facilitate transmission. The first frame buffer 130 'may store the original display parameters for a frame and the display parameters processed by the first color processing element 110' for invocation. The transmission of signals between the SOC100 'and the TCON 200' is performed according to a preset protocol. After receiving the display signal, the decoding element 210 'in the TCON 200' decodes the display signal according to the predetermined protocol to restore the display signal. Further, the display signal is subjected to color processing by the second color processing element 220 ', gamma correction by the gamma element 230 ', and dithering by the dithering element 240 ', resulting in a modified display signal. The modified display signal is further driven and enhanced by the driving element 250' and then output to drive the display of the picture. While a second frame buffer 260 'in TCON 200' may store modified display parameters for a frame for invocation. It can be seen that when the original display signal is processed into a modified display signal, a large change often occurs, which may cause a still image to be jittered.
The application provides a display driving method, which modifies a color adjustment coefficient involved in a display parameter processing process according to the change condition of a modified display parameter of two adjacent frames in a static picture so as to avoid the flicker of the static picture and improve the display effect.
In an embodiment of the present application, as shown in fig. 2, the display driving method includes the following steps:
s100, acquiring original display parameters before processing two adjacent frames and corrected display parameters after processing;
wherein the original display parameters are obtained from an original display signal directly from the display signal source, and the modified display parameters are obtained from a processed modified display signal. In order to save the buffer space, only the original display parameters and the modified display parameters of the whole display picture of the current frame and the previous frame can be temporarily stored, and the buffered original display parameters and the modified display parameters are continuously updated in a covering manner along with the display.
S200, comparing the absolute value of the difference of the original display parameters of two adjacent frames at the same position with a first preset threshold;
and judging whether the displayed picture is a static picture or not by determining the change condition of the original display parameters of two adjacent frames at the same position. Specifically, the absolute value of the difference between the original display parameters at each position in two adjacent frames and a first preset threshold value can be respectively compared to ensure the accuracy of judgment; or a certain number of typical positions or random positions are selected from the display picture for comparison, so that the comparison process is simplified, and the processing efficiency is improved.
Step S310, when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is smaller than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a second preset threshold;
when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to the first preset threshold, specifically, the absolute value of the difference between all the compared original display parameters may be less than or equal to the first preset threshold; or, in consideration of possible fluctuation, when the absolute value of the difference between a certain number of or more original display parameters is less than or equal to the first preset threshold, the current picture is considered to be a still picture. It should be noted that the static picture is not strictly constant, but the picture with small change can be classified into the static picture. When the static picture is displayed, the absolute value of the difference of the corrected display parameters of the two adjacent frames at the corresponding positions is further compared with a second preset threshold value so as to judge whether the difference of the display parameters of the two adjacent frames is enlarged in the processing process of the original display signal. The corresponding position may be completely consistent with the position selected when the change condition of the original display parameter is judged, or may not be consistent with the position selected when the change condition of the original display parameter is judged, but it should be noted that the corrected display parameters of two adjacent frames are necessarily at the same position, so that the corrected display parameters are comparable. Similarly, the corrected display parameters at each position may be compared, or a number of representative positions or random positions may be selected for comparison.
And step S410, when the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold value, modifying the color adjustment coefficient to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters.
When the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold, it indicates that the corrected display parameters have changed greatly with time under the condition that the original display parameters have not changed or changed greatly with time, therefore, in order to avoid the picture jitter, the color adjustment coefficient involved in the process of processing the original display signals is modified to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters, so that when the original display parameters of two adjacent frames have not changed or changed greatly, the corresponding corrected display parameters have not changed or changed greatly, so as to avoid the picture jitter and improve the display effect. Wherein the color adjustment may comprise a preliminary color adjustment in SOC and/or a further color adjustment in TCON, and accordingly, the color adjustment coefficients involved in SOC and/or the color adjustment coefficients involved in TCON may be modified. The color adjusting coefficients can be two or more than two, when the absolute value of the difference of the corrected display parameters of two adjacent frames at the corresponding positions is larger than a second preset threshold value, the color adjusting coefficients can be gradually modified so as to gradually reduce the difference between the original display parameters and the corrected display parameters of the same frame at the same position, thereby reducing the flicker of a static picture while ensuring the color processing effect. Although the modification of the color adjustment coefficient hardly affects the image display of the current frame, but only affects the image display of the following corresponding frame, considering that the time of each frame is very short, the human eye hardly recognizes the image flicker within the duration of one frame, so the technical scheme of the embodiment still has a good effect of improving the static image flicker.
In a specific example, the obtained original display parameters before processing and the processed modified display parameters of two adjacent frames, the second preset threshold and the conclusion of whether to modify the color adjustment coefficient are shown in the following table (assuming that the maximum grayscale value is 255, the original display parameters, the modified display parameters, the first preset threshold and the second preset threshold are represented by grayscale values, and the first preset threshold is set to 4):
that is, when the absolute value of the difference between the original display parameters is less than or equal to the first preset threshold 4, the absolute value of the difference between the modified display parameters of two adjacent frames at the corresponding position is compared with the second preset threshold (as the data of the first row to the fifth row in the above table), otherwise, the color adjustment coefficient is not modified (as the data of the sixth row in the above table). Wherein the second preset threshold is set according to an absolute value of the difference of the original display parameters, and generally, the second preset threshold increases as the absolute value of the difference of the original display parameters increases. If the absolute value of the difference between the modified display parameters is greater than a second predetermined threshold, the color-toning factor is modified (e.g., the data in the second, fourth, and fifth rows of the table above), otherwise, the color-toning factor is not modified (e.g., the data in the first and third rows of the table above).
In one embodiment, the color adjustment coefficients and their values are shown in the following color processing weight table:
in the present example, the color adjustment coefficient has five steps, and the display parameter m before color processing and the display parameter n after color processing satisfy n ═ Gaini ×, where i ═ 1,2,3,4, or 5. As the value of the color adjustment coefficient increases, the difference between the original display parameters before processing and the corrected display parameters after processing will increase. In the process of modifying the color adjustment coefficient, in order to reduce the flicker of the static picture and ensure the color processing effect, the color adjustment coefficient is preferentially modified to an adjacent value, and if the value still cannot meet the requirement of reducing the flicker of the static picture, the color adjustment coefficient is further reduced. For example, the original color adjustment coefficient is Gain 1-5, if it is detected that the color adjustment coefficient needs to be modified to avoid flicker, the color adjustment coefficient is first modified to Gain 2-4, if the modified color adjustment coefficient can already meet the requirement of reducing flicker of the picture, the color adjustment coefficient is not modified, otherwise, the color adjustment coefficient is further modified to Gain 3-3, and so on.
In the present embodiment, the display driving method includes the steps of: acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames; comparing the absolute value of the difference of the original display parameters of two adjacent frames at the same position with a first preset threshold; when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a second preset threshold; and when the absolute value of the difference of the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold value, modifying the color adjusting coefficient to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters. Judging whether the displayed picture is a static picture or not by comparing the absolute value of the difference between the original display parameters of two adjacent frames at the same position with a first preset threshold, judging whether the corrected display parameters have large changes or not by comparing the absolute value of the difference between the original display parameters of two adjacent frames at the corresponding position with a second preset threshold, indicating that the corrected display parameters corresponding to the static picture have large changes when the absolute value of the difference between the corrected display parameters of two adjacent frames is larger than the second preset threshold, possibly causing picture jitter, and then modifying the color adjustment coefficient to reduce the changes of the corrected display parameters of the same frame at the same position relative to the original display parameters, thereby ensuring that the finally displayed picture is also static, the display signal is consistent with the original display signal, thereby avoiding the shaking of the picture and improving the display effect.
In an embodiment, after step S200, the display driving method further includes the steps of:
step S320, when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is greater than the first preset threshold, the color adjustment coefficient is kept unchanged or modified to increase the change of the modified display parameters of the same frame at the same position relative to the original display parameters.
That is, when the display frame itself has a large change, the current color adjustment coefficient can be directly maintained without considering the problem of reducing the jitter in the static frame, i.e., without further comparing the changes of the corrected display parameters of two adjacent frames at the corresponding positions. Alternatively, the color adjustment coefficients may be modified to increase the variation of the modified display parameters of the same frame at the same location from the original display parameters to improve the color of the display, taking into account that some of the color of the display may be sacrificed when the color adjustment coefficients were previously modified to reduce flicker. Specifically, the color adjustment coefficient may be increased to an initial value or a maximum value, or a modification range of the color adjustment coefficient may be calculated according to the chromaticity of the display screen. Of course, in the comparison process, the changes of the original display parameters of two adjacent frames at each position may be compared, or a certain number of typical positions or random positions may be selected for comparison, so as to simplify the comparison process and improve the processing efficiency.
Or, when the display screen is a static screen, after the step of comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with the second preset threshold, the display driving method further includes the steps of:
step S420, when the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position is smaller than or equal to a second preset threshold, keeping the color adjustment coefficient unchanged or modifying the color adjustment coefficient to increase the change of the corrected display parameters of the same frame at the same position relative to the original display parameters.
That is, although the display screen is a still screen, if the change of the corrected display parameters of two adjacent frames at the corresponding positions obtained after the processing is not large, the display parameters may be directly processed by the current color adjustment coefficients. Or, the color adjusting coefficient is modified properly to increase the change of the corrected display parameter of the same frame at the same position relative to the original display parameter, thereby improving the color of the display picture. Similarly, the corrected display parameters at the corresponding positions may be compared, or a number of typical positions or random positions may be selected for comparison.
In the above embodiment, the first preset threshold is less than or equal to the second preset threshold. For a static picture, certain redundancy can be given to the corrected display parameters to ensure the processing effect on the original display parameters. Of course, in order to effectively avoid the flicker, it should be noted that the second preset threshold value cannot be set too large either.
In one embodiment, step S100 includes:
step S110, receiving an original display signal transmitted after primary color processing and encoding according to a preset protocol;
wherein, the preliminary color processing and the encoding according to the preset protocol are usually implemented in the SOC, and the SOC is directly connected with the display signal source. The preliminary color processing can improve the color of the display screen, and the encoding is performed according to a preset protocol to facilitate the transmission of the display signal from the SOC to the TCON.
Step S120, decoding the received display signal according to a preset protocol;
and after the TCON receives the original display signal which is transmitted after the preliminary color processing and the coding according to the preset protocol, decoding according to the preset protocol to realize the restoration of the display signal.
Step S130, carrying out color processing, gamma processing and dithering processing on the decoded display signal again to obtain a corrected display signal;
the display effect is improved by performing color processing again on the decoded display signal to improve color vividness and the like. The gamma processing is further performed to compensate for the non-linear characteristic of the display device, thereby realizing distortion-free display. The dithering process can realize the display of more gray scales, so that the transition of the display picture is smoother. And obtaining a corrected display signal after the secondary color processing, the gamma processing and the dithering processing.
And step S140, acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames according to the original display signals and the corrected display signals.
The original display signal and the corrected display signal reflect the display parameters which change along with time, so that the original display parameters before processing and the corrected display parameters after processing of two adjacent frames can be obtained according to the original display signal and the corrected display signal to be further processed.
In an embodiment, after step S200, the display driving method further includes the steps of:
step S330, when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a third preset threshold;
and step S430, when the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position is greater than a third preset threshold, modifying the corrected display parameter of the current frame into the corrected display parameter of the previous frame.
In this embodiment, in order to better reduce the flicker of the display image, if it is detected that the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding positions is greater than the third preset threshold, the corrected display parameter of the current frame is modified to the corrected display parameter of the previous frame, so as to correct the flicker of the display image of the current frame. The third preset threshold and the second preset threshold have no definite size relationship, but particularly, the third preset threshold may be set to be greater than the second preset threshold, that is, only when the absolute value of the difference between the corrected display parameters of two adjacent frames in the static picture changes greatly, the corrected display parameter of the previous frame replaces the corrected display parameter of the current frame, on one hand, the effect of reducing picture flicker is improved, and on the other hand, the situation that the display driving method is too complex due to the fact that the corrected display parameter needs to be modified every time of correction can be avoided, so that resources are saved.
In the above embodiments, after the final corrected display parameters of the current frame are obtained, overdrive processing may be further performed on the corrected display parameters to accelerate the response speed of the liquid crystal in the liquid crystal display device, so as to achieve driving enhancement and improve the display effect.
As shown in fig. 3, the present application also proposes a display driving apparatus, which includes a first data control element 110, the first data control element 110 being configured to perform the following operations:
acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames;
comparing the absolute value of the difference of the original display parameters of two adjacent frames at the same position with a first preset threshold;
when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a second preset threshold;
and when the absolute value of the difference of the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold value, modifying the color adjusting coefficient to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters.
The first data control component 210 may be a microprocessor, for performing the operations such as the above operations and modifications. Wherein the original display parameters are obtained from an original display signal directly from the display signal source, and the modified display parameters are obtained from a processed modified display signal. In order to save the buffer space, only the original display parameters and the modified display parameters of the whole display picture of the current frame and the previous frame can be temporarily stored, and the buffered original display parameters and the modified display parameters are continuously updated in a covering manner along with the display. And judging whether the displayed picture is a static picture or not by determining the change condition of the original display parameters of two adjacent frames at the same position. Specifically, the absolute value of the difference between the original display parameters at each position in two adjacent frames and a first preset threshold value can be respectively compared to ensure the accuracy of judgment; or a certain number of typical positions or random positions are selected from the display picture for comparison, so that the comparison process is simplified, and the processing efficiency is improved. When the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to the first preset threshold, specifically, the absolute value of the difference between all the compared original display parameters may be less than or equal to the first preset threshold; or, in consideration of possible fluctuation, when the absolute value of the difference between a certain number of or more original display parameters is less than or equal to the first preset threshold, the current picture is considered to be a still picture. It should be noted that the static picture is not strictly constant, but the picture with small change can be classified into the static picture. When the static picture is displayed, the absolute value of the difference of the corrected display parameters of the two adjacent frames at the corresponding positions is further compared with a second preset threshold value so as to judge whether the difference of the display parameters of the two adjacent frames is enlarged in the processing process of the original display signal. The corresponding position may be completely consistent with the position selected when the change condition of the original display parameter is judged, or may not be consistent with the position selected when the change condition of the original display parameter is judged, but it should be noted that the corrected display parameters of two adjacent frames are necessarily at the same position, so that the corrected display parameters are comparable. Similarly, the corrected display parameters at each position may be compared, or a number of representative positions or random positions may be selected for comparison. When the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold, it indicates that the corrected display parameters have changed greatly with time under the condition that the original display parameters have not changed or changed greatly with time, therefore, in order to avoid the picture jitter, the color adjustment coefficient involved in the process of processing the original display signals is modified to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters, so that when the original display parameters of two adjacent frames have not changed or changed greatly, the corresponding corrected display parameters have not changed or changed greatly, so as to avoid the picture jitter and improve the display effect. Wherein the color adjustment may comprise a preliminary color adjustment in SOC and/or a further color adjustment in TCON, and accordingly, the color adjustment coefficients involved in SOC and/or the color adjustment coefficients involved in TCON may be modified. The color adjusting coefficients can be two or more than two, when the absolute value of the difference of the corrected display parameters of two adjacent frames at the corresponding positions is larger than a second preset threshold value, the color adjusting coefficients can be gradually modified so as to gradually reduce the difference between the original display parameters and the corrected display parameters of the same frame at the same position, thereby reducing the flicker of a static picture while ensuring the color processing effect. Although the modification of the color adjustment coefficient hardly affects the image display of the current frame, but only affects the image display of the following corresponding frame, considering that the time of each frame is very short, the human eye hardly recognizes the image flicker within the duration of one frame, so the technical scheme of the embodiment still has a good effect of improving the static image flicker.
In one embodiment, as shown in fig. 3, the display driving apparatus includes an SOC100 and a TCON200, the first data control element 110 is disposed on the SOC100, and the first data control element 110 is connected to a display signal source; the TCON200 is connected to the SOC100, wherein the arrows indicate the direction of flow of the display signals. By improving the SOC100 and the TCON200, the SOC100 and the TCON200 cooperate to reduce flickering of a still picture while ensuring display colors, thereby improving display effects.
Specifically, the SOC100 includes a first color processing component 120, an encoding component 130, and a first frame buffer 140. The first color processing component 120 is connected to the first data control component 110, and the first color processing component 120 is configured to perform a preliminary color processing on the original display signal received from the first data control component 110, wherein the preliminary color processing may be performed with reference to a color processing weight table to improve the color of the display frame. The encoding component 130 is connected to the first color processing component 120, and the encoding component 130 is configured to encode the signal after the preliminary color processing according to a predetermined protocol for transmission of the square display signal. The first frame buffer 140 is coupled to the source of the display signal, the first data control component 110 and the first color processing component 120, the first frame buffer 140 being configured to store the original display parameters and the modified display parameters of a previous frame for subsequent comparison.
TCON200 includes a decode element 210, a second color processing element 220, a gamma element 230, a dither processing element 240, and a second data control element 250. The decoding element 210 is coupled to the SOC100, and the decoding element 210 is configured to decode a display signal received from the SOC100 according to a predetermined protocol. After receiving the original display signal transmitted after the preliminary color processing and the encoding according to the preset protocol, the TCON200 decodes the original display signal according to the preset protocol to restore the display signal. The second color processing component 220 is coupled to the decoding component 210, the second color processing component 220 being arranged to perform a further color processing on the decoded display signal. The display effect is improved by performing color processing again on the decoded display signal to improve color vividness and the like. The color processing may be performed with reference to the color processing weight table, and of course, the color adjustment coefficient may be modified only in the SOC100 for simplifying the color processing process, and is not adjusted again. Or just here, the color adjustment coefficients are modified, but not adjusted in the SOC 100. The gamma element 230 is connected to the second color processing element 220, and the gamma element 230 is configured to perform gamma processing on the color-processed display signal again, the gamma processing being performed to compensate for non-linear characteristics of the display device, thereby achieving distortion-free display. The dithering component 240 is coupled to the gamma component 230, and the dithering component 240 is configured to dither the gamma-processed display signal to generate the modified display parameters of the current frame, so that more gray levels can be displayed by dithering to make the transition of the display image smoother. The second data control element 250 is coupled to the dithering processing element 240 and the SOC100, and the second data control element 250 is configured to transmit the modified display parameters of the current frame received from the dithering processing element 240 to the SOC100, which may be implemented according to a Serial Peripheral Interface (SPI) protocol. Specifically, the second data control element 250 transmits the modified display parameters of the current frame to the first color processing element 120 or the first data control element 110, so as to provide a reference for modifying the color adjustment coefficients. Of course, a second frame buffer 260 may also be provided in the TCON200 to store the original display parameters and/or modified display parameters for a frame.
In the above embodiments, the overdrive element 270 may further perform overdrive processing on the corrected display parameters to accelerate the response speed of the liquid crystal in the liquid crystal display device, so as to enhance the driving and improve the display effect.
As shown in fig. 4, the present application also proposes a display device, which includes a display panel 300; and a display driving device connected to the display panel 300, the display driving device being configured to drive a display of the display panel. The specific structure of the display driving device refers to the above embodiments, and since the display device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here. Specifically, the display panel may be a liquid crystal display panel or the like. The SOC100 may be disposed on a motherboard of a display signal source such as a television.
The above are only alternative embodiments of the present application, and not intended to limit the scope of the present application, and all modifications and equivalents made by the contents of the specification and the drawings of the present application, or directly/indirectly applied to other related technical fields, are included in the scope of the present application.
Claims (10)
1. A display driving method, characterized by comprising:
acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames;
comparing the absolute value of the difference of the original display parameters of two adjacent frames at the same position with a first preset threshold;
when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a second preset threshold;
and when the absolute value of the difference of the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold value, modifying the color adjusting coefficient to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters.
2. The display driving method according to claim 1, wherein after the step of comparing the absolute value of the difference between the original display parameters of two adjacent frames at the same position with a first preset threshold, the display driving method further comprises the steps of:
when the absolute value of the difference of the original display parameters of two adjacent frames at the same position is larger than a first preset threshold value, keeping the color adjusting coefficient unchanged or modifying the color adjusting coefficient to increase the change of the modified display parameters of the same frame at the same position relative to the original display parameters; or the like, or, alternatively,
after the step of comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with the second preset threshold, the display driving method further includes the steps of:
and when the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position is less than or equal to a second preset threshold value, keeping the color adjusting coefficient unchanged or modifying the color adjusting coefficient to increase the change of the corrected display parameters of the same frame at the same position relative to the original display parameters.
3. The display driving method according to claim 1 or 2, wherein the first preset threshold is less than or equal to the second preset threshold.
4. The display driving method according to claim 1 or 2, wherein the step of obtaining the original display parameters before processing and the corrected display parameters after processing for two adjacent frames comprises:
receiving an original display signal transmitted after primary color processing and encoding according to a preset protocol;
decoding the received display signal according to the preset protocol;
carrying out color processing, gamma processing and dithering processing on the decoded display signal again to obtain a corrected display signal;
and acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames according to the original display signals and the corrected display signals.
5. The display driving method according to claim 1 or 2, wherein after the step of comparing the absolute value of the difference between the original display parameters of two adjacent frames at the same position with a first preset threshold, the display driving method further comprises the steps of:
when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is smaller than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a third preset threshold, wherein the third preset threshold is larger than the second preset threshold; and when the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding positions is greater than a third preset threshold, modifying the corrected display parameter of the current frame into the corrected display parameter of the previous frame.
6. A display driving apparatus, comprising a first data control element configured to:
acquiring original display parameters before processing and corrected display parameters after processing of two adjacent frames;
comparing the absolute value of the difference of the original display parameters of two adjacent frames at the same position with a first preset threshold;
when the absolute value of the difference between the original display parameters of two adjacent frames at the same position is less than or equal to a first preset threshold, comparing the absolute value of the difference between the corrected display parameters of two adjacent frames at the corresponding position with a second preset threshold;
and when the absolute value of the difference of the corrected display parameters of two adjacent frames at the corresponding position is greater than a second preset threshold value, modifying the color adjusting coefficient to reduce the change of the corrected display parameters of the same frame at the same position relative to the original display parameters.
7. The display driving device according to claim 6, wherein the display driving device comprises:
the system-on-chip board is provided with the first data control element, and the first data control element is connected with a display signal source; and
and the time sequence control board is connected with the system-on-chip board.
8. The display driving apparatus according to claim 7, wherein the system-on-chip board comprises:
a first color processing element coupled to the first data control element, the first color processing element configured to perform preliminary color processing on an original display signal received from the first data control element according to the color adjustment coefficient;
the encoding element is connected with the first color processing element and is used for encoding the display signal subjected to the preliminary color processing according to a preset protocol; and
a first frame buffer, said first frame buffer being coupled to said display signal source, said first data control element and said first color processing element, said first frame buffer being configured to store original display parameters and modified display parameters of a previous frame.
9. The display driving device according to claim 7, wherein the timing control board comprises:
a decoding component coupled to the system-on-chip board, the decoding component configured to decode a display signal received from the system-on-chip board according to a predetermined protocol;
a second color processing element coupled to the decoding element, the second color processing element configured to perform a second color processing on the decoded display signal;
a gamma element coupled to the second color processing element, the gamma element configured to gamma process the re-color processed display signal;
a dithering component, coupled to the gamma component, configured to dither the gamma processed display signal to generate modified display parameters for the current frame; and
a second data control element coupled to the dithering processing element and the system-on-chip board, the second data control element configured to transmit the modified display parameters of the current frame received from the dithering processing element to the system-on-chip board.
10. A display device, characterized in that the display device comprises:
a display panel; and
a display driver device as claimed in any one of claims 6 to 9, connected to the display panel, the display driver device being arranged to drive the display of the display panel.
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| CN112164360A (en) * | 2020-09-24 | 2021-01-01 | 合肥维信诺科技有限公司 | Display drive circuit and display device |
| CN112419958A (en) * | 2020-11-30 | 2021-02-26 | 广州易博士管理咨询有限公司 | Multi-frequency linkage low-power-consumption display driving method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772803A (en) * | 2007-08-06 | 2010-07-07 | 哉英电子股份有限公司 | Image signal processing device |
| CN103065591A (en) * | 2012-09-17 | 2013-04-24 | 友达光电股份有限公司 | Dynamic switching method of liquid craystal display panel drive modes |
| CN104798126A (en) * | 2012-11-20 | 2015-07-22 | 夏普株式会社 | Liquid crystal display device and method for driving same |
| CN106488312A (en) * | 2015-08-31 | 2017-03-08 | 展讯通信（上海）有限公司 | The detection method of video source and device |
| CN109326263B (en) * | 2018-12-12 | 2020-10-16 | 惠科股份有限公司 | Display driving method, display driving device and display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1843320B1 (en) * | 2006-04-04 | 2015-08-26 | Dialog Semiconductor GmbH | Combined gamma and phase table data in memory for LCD CSTN displays |
| TWI442781B (en) * | 2010-03-19 | 2014-06-21 | Acer Inc | Monitor and display method thereof |
-
2018
- 2018-12-12 CN CN201811522750.XA patent/CN109345997B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772803A (en) * | 2007-08-06 | 2010-07-07 | 哉英电子股份有限公司 | Image signal processing device |
| CN103065591A (en) * | 2012-09-17 | 2013-04-24 | 友达光电股份有限公司 | Dynamic switching method of liquid craystal display panel drive modes |
| CN104798126A (en) * | 2012-11-20 | 2015-07-22 | 夏普株式会社 | Liquid crystal display device and method for driving same |
| CN106488312A (en) * | 2015-08-31 | 2017-03-08 | 展讯通信（上海）有限公司 | The detection method of video source and device |
| CN109326263B (en) * | 2018-12-12 | 2020-10-16 | 惠科股份有限公司 | Display driving method, display driving device and display device |
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