WO2020119558A1 - 显示驱动方法、显示驱动装置和显示装置 - Google Patents

显示驱动方法、显示驱动装置和显示装置 Download PDF

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Publication number
WO2020119558A1
WO2020119558A1 PCT/CN2019/123086 CN2019123086W WO2020119558A1 WO 2020119558 A1 WO2020119558 A1 WO 2020119558A1 CN 2019123086 W CN2019123086 W CN 2019123086W WO 2020119558 A1 WO2020119558 A1 WO 2020119558A1
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Prior art keywords
display
difference
modified
processing
preset threshold
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French (fr)
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王明良
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HKC Co Ltd
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HKC Co Ltd
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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
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
    • G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames

Definitions

  • the present application relates to the field of display technology, and in particular, to a display driving method, a display driving device, and a display device.
  • the original display signal directly received from the display signal source is usually subjected to certain processing, such as color optimization, gamma debugging, jitter reduction, etc., and the processed modified display signal Relative to the original display signal often has a large change.
  • certain processing such as color optimization, gamma debugging, jitter reduction, etc.
  • the processed modified display signal Relative to the original display signal often has a large change.
  • the correction display parameters of the two adjacent frames in the correction display signal may be very different, which is different from the original two frames of the original display signal. There is no difference between the display parameters or the difference is very small. It is reflected in the final display screen, which is shown as the jitter of the static screen, resulting in poor display effect.
  • the main purpose of the present application is to propose a display driving method, a display driving device, and a display device, aiming to match the display screen with the original display signal and improve the display effect.
  • the display driving method proposed in this application includes the following steps:
  • the modified display parameters of two adjacent frames at the corresponding position are differentiated to obtain a second difference, and the second difference is compared The absolute value of and the second preset threshold;
  • the modified display parameter of the current frame is modified to the modified display parameter of the previous frame.
  • the present application also proposes a display driving device, the display driving device includes a data control element, the data control element is configured to perform the following operations: obtain the original display parameters of two adjacent frames before processing, and Performing correction processing on the original display parameters to obtain processed corrected display parameters; making a difference between the original display parameters of two adjacent frames at the same position to obtain a first difference value, and comparing the absolute value of the first difference value And the first preset threshold; when the absolute value of the first difference is less than or equal to the first preset threshold, the modified display parameters of the two adjacent frames at the corresponding position are subtracted to obtain the second difference, and compare For the absolute value of the second difference and the second preset threshold; and when the absolute value of the second difference is greater than the second preset threshold, the modified display parameter of the current frame is modified to the modified display of the previous frame parameter.
  • the present application further proposes a display device, the display device including a display panel and a display driving device, the display driving device includes a data control element, the data control element is configured to perform the following operations: obtain adjacent The original display parameters before the two-frame processing, and correcting the original display parameters to obtain the corrected display parameters after the processing; the original display parameters of the two adjacent frames at the same position are subtracted to obtain the first difference, and Comparing the absolute value of the first difference with the first preset threshold; when the absolute value of the first difference is less than or equal to the first preset threshold, the corrected display parameters of two adjacent frames at the corresponding position Make a difference, obtain a second difference, and compare the absolute value of the second difference with a second preset threshold; and when the absolute value of the second difference is greater than the second preset threshold, modify the current frame
  • the correction display parameter of is the correction display parameter of the previous frame.
  • the display driving method includes the following steps: acquiring the original display parameters before processing of two adjacent frames and the modified display parameters after processing; comparing the absolute value of the difference between the original display parameters of two adjacent frames at the same position And the 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 the first preset threshold, the difference between the corrected display parameters of the two adjacent frames at the corresponding position is compared The absolute value and the second preset threshold; when the absolute value of the difference between the modified display parameters of two adjacent frames at the corresponding position is greater than the second preset threshold, the modified display parameter of the current frame is modified to the modified display parameter of the previous frame.
  • the absolute value of the difference between the original display parameters of two adjacent frames at the same position and the first preset threshold it is determined whether the displayed image is a static image at this time.
  • the absolute value of the parameter difference is less than or equal to the first preset threshold, that is, the display image is a static image at this time
  • the absolute value of the difference between the display parameter and the second preset is further corrected by comparing two adjacent frames at the corresponding position Threshold, to determine whether there is a large change in the modified display parameters.
  • the modified display parameter of the current frame is modified to the modified display parameter of the previous frame, that is, the modified display parameter of the previous frame replaces the modified display parameter of the current frame, so as to ensure that the final displayed screen is also static, and The original display signal is consistent, avoiding the jitter of the picture and improving the display effect.
  • FIG. 1 is a schematic structural diagram of a display driving device in an example
  • FIG. 2 is a schematic flowchart of a display driving method according to an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of a timing control board in a display driving device according to an embodiment of the application.
  • FIG. 4 is a schematic structural diagram of a display device according to an embodiment of the application.
  • first”, “second”, etc. are for descriptive purposes only, and cannot be understood as instructions or hints Its relative importance or implicitly indicates the number of technical features indicated.
  • the features defined with “first” and “second” may include at least one of the features either explicitly or implicitly.
  • the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary people in the art to achieve, when the combination of technical solutions conflicts with each other or cannot be realized, it should be considered that the combination of such technical solutions does not exist , Nor within the scope of protection required by this application.
  • the structure of the display driving device is shown in FIG. 1, including a system on chip (SOC, System on Chip) 100’ and timing control board (TCON, Timing Controller) 200', where the arrow represents the flow direction of the display signal.
  • SOC system on chip
  • TCON Timing Controller
  • the SOC 100' receives the original display signal from the display signal source.
  • the original display signal is processed by the first color processing element 110' and encoded in the encoding element 120' according to a preset protocol to facilitate transmission.
  • the first frame buffer 130' may store the original display parameters of one frame and the display parameters processed by the first color processing element 110' for recall.
  • Signal transmission is performed between SOC100' and TCON200' according to a preset protocol.
  • the decoding element 210' in the TCON 200' decodes according to a preset protocol to restore the display signal. Further, the display signal undergoes color processing by the second color processing element 220', gamma correction by the gamma element 230' and dither processing by the dither processing element 240' to generate a modified display signal. The corrected display signal is further enhanced by the driving element 250' and then output to drive the display of the screen.
  • the second frame buffer 260' in TCON200' can store the modified display parameters of one frame for recall. It can be seen that when the original display signal is processed into a modified display signal, a great change often occurs, which may cause the jitter of the static picture.
  • the present application proposes a display driving method, which determines the modified display parameters of the current frame according to the changes of the modified display parameters of two adjacent frames in the static picture to avoid flickering of the static picture and improve the display effect.
  • the display driving method includes the following steps:
  • Step S100 Obtain the original display parameters of the two adjacent frames before processing, and perform correction processing on the original display parameters to obtain the modified display parameters after processing;
  • the original display parameters are obtained from the original display signal directly from the display signal source, and the modified display parameters are obtained from the processed modified display signal.
  • the original display parameters and modified display parameters of the entire display screen of the current frame and the previous frame can be temporarily stored, and the cached original display parameters and modified display parameters are continuously overwritten and updated as the display progresses.
  • Step S200 Differentiate the original display parameters of two adjacent frames at the same position to obtain a first difference, and compare the absolute value of the first difference with the first preset threshold;
  • Whether the displayed picture is a static picture is determined by determining the change 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 and the first preset threshold at each position in two adjacent frames can be compared to ensure the accuracy of the judgment; or a certain number of typical positions can be selected from the display screen or randomly Position comparison to simplify the comparison process and improve processing efficiency.
  • Step S310 When the absolute value of the first difference is less than or equal to the first preset threshold, make a difference between the modified display parameters of two adjacent frames at the corresponding position, obtain a second difference, and compare the first difference The absolute value of the second difference and the second preset threshold;
  • 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
  • the absolute value of the difference between all the compared original display parameters may be less than or equal to the first The preset threshold; or considering the possible fluctuation, the absolute value of the difference of the original display parameters above a certain number may be less than or equal to the first preset threshold, that is, the picture at this time is regarded as a static picture.
  • the static pictures here are not necessarily strictly unchanged, but pictures with little change can also be classified into static pictures.
  • the absolute value of the difference between the modified display parameters of the two adjacent frames at the corresponding position and the second preset threshold are further compared to determine whether the processing of the original display signal will affect the display parameters of the two adjacent frames
  • the relationship has caused a greater impact.
  • the corresponding position may be the same as the position selected when judging the change of the original display parameters, or may be inconsistent, but it should be noted that the modified display parameters of two adjacent frames must be in the same position to be comparable .
  • the correction display parameters at each position can be compared, or a certain number of typical positions or random positions can be selected for comparison.
  • Step S410 When the absolute value of the second difference is greater than the second preset threshold, modify the modified display parameter of the current frame to the modified display parameter of the previous frame.
  • the modified display parameter of the current frame is modified to the modified display parameter of the previous frame. That is to say, in the above situation, continue to display with the modified display parameters of the previous frame, so as to avoid the flicker of the picture and improve the display effect.
  • the modified display parameter after processing is b
  • the original display parameter before processing of the previous frame is a'
  • the modified display parameter after processing is b'
  • ⁇ 1
  • ⁇ 2
  • ⁇ 2>2 it is considered that the modified display parameters obtained after the original display parameters have been processed have undergone a large change, which may cause the screen to flicker.
  • the modified display parameter of the frame is changed from b to b', that is, the modified display parameter of the previous frame is selected to drive the display to avoid the occurrence of flicker.
  • the display driving method includes the following steps: acquiring the original display parameters before processing of two adjacent frames and the modified display parameters after processing; comparing the absolute value of the difference between the original display parameters of two adjacent frames at the same position And the 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 the first preset threshold, the difference between the corrected display parameters of the two adjacent frames at the corresponding position is compared The absolute value and the second preset threshold; when the absolute value of the difference between the modified display parameters of two adjacent frames at the corresponding position is greater than the second preset threshold, the modified display parameter of the current frame is modified to the modified display parameter of the previous frame.
  • the correction display parameter is further judged by comparing the absolute value of the difference between the correction display parameters of the two adjacent frames at the corresponding position and the second preset threshold Whether there is a large change in the parameter, when the absolute value of the difference between the modified display parameters of two adjacent frames is greater than the second preset threshold, it indicates that the modified display parameter corresponding to the static picture changes greatly, which may cause the picture to shake.
  • the previous frame's modified display parameters replace the current frame's modified display parameters, so as to ensure that the final displayed picture is also static, consistent with the original display signal, Avoid jitter of the picture and improve the display effect.
  • the display driving method further includes the following steps:
  • Step S320 When the absolute value of the first difference is greater than the first preset threshold, keep the modified display parameter of the current frame unchanged.
  • the original display parameters of two adjacent frames at each position can be compared, or a certain number of typical positions or random positions can be selected for comparison to simplify the comparison process and improve processing efficiency.
  • the modified display parameter b can be directly output without changing the modified display parameter at this time.
  • the display driving method also includes the following steps:
  • Step S420 When the absolute value of the second difference is less than or equal to the second preset threshold, keep the modified display parameter of the current frame unchanged.
  • the display screen is a static screen
  • the modified display parameters of the two adjacent frames at the corresponding position obtained after the processing do not change much
  • the correction display parameters at the corresponding positions can be compared, or a certain number of typical positions or random positions can be selected for comparison.
  • the correction display parameters can be output directly without changing the correction display parameters. b drive display.
  • the first preset threshold is less than or equal to the second preset threshold.
  • a certain degree of redundancy can be given to the modified display parameters to ensure the processing effect on the original display parameters.
  • the second preset threshold cannot be set too large.
  • the first preset threshold and the second preset threshold can be set according to actual needs. The following table shows a specific setting method (assuming that the maximum gray scale value is 255, and the first preset threshold and the second preset threshold pass gray Order value): First preset threshold Second preset threshold 0 2 1 3 2 4 3 6
  • step S100 includes:
  • Step S110 Receive an original display signal transmitted after preliminary color processing and encoding according to a preset protocol
  • preliminary color processing and encoding according to a preset protocol are usually implemented in an SOC, which is directly connected to the display signal source.
  • the preliminary color processing can improve the color of the display screen, and the encoding according to the preset protocol is to facilitate the transmission of the display signal from the SOC to the TCON.
  • Step S120 Decode the received display signal according to a preset protocol
  • the TCON When the TCON receives the original display signal transmitted after preliminary color processing and encoding according to the preset protocol, it decodes according to the preset protocol to realize the restoration of the display signal. It should be noted that the original display signal directly obtained from the display signal source generally has little change until this step of decoding, so in actual processing, the signal obtained after decoding can be directly used as the original display signal for subsequent Comparison and processing.
  • Step S130 Perform color processing, gamma processing, and dithering processing again on the decoded display signal to obtain a modified display signal;
  • the display effect is improved.
  • the role of further gamma processing is to compensate for the non-linear characteristics of the display device and achieve distortion-free display.
  • the dithering process can achieve more gray-scale display, making the transition of the display screen smoother.
  • Step S140 Obtain the original display parameters before processing and the modified display parameters after processing according to the original display signal and the modified display signal.
  • the original display signal and the modified display signal reflect the display parameters that change with time. Therefore, according to the original display signal and the modified display signal, the original display parameters and the modified display parameters after the processing of the two adjacent frames can be obtained before processing. Further processing.
  • the display driving method further includes the following steps:
  • Step S330 When the absolute value of the first difference is less than or equal to the first preset threshold, make a difference between the modified display parameters of two adjacent frames at the corresponding position, obtain a second difference, and compare the first difference The absolute value of the second difference and the third preset threshold;
  • Step S430 When the absolute value of the second difference is greater than the third preset threshold, generate a prompt signal
  • the third preset threshold is greater than the second preset threshold.
  • the absolute value of the difference between the original display parameters of two adjacent frames is less than or equal to the first preset threshold, in order to avoid a large deviation in the processing of the original display signal itself, resulting in a static picture
  • the modified display parameters of the two adjacent frames always vary greatly, and the absolute value of the difference between the corrected display parameters of the two adjacent frames and the third preset threshold are compared.
  • the absolute value of the difference between the modified display parameters of two adjacent frames is greater than the third preset threshold, it indicates that there may be a problem in the processing itself at this time, that is, one or more of color processing, gamma processing or dithering processing If there is a large deviation in the link, a prompt signal is generated for maintenance.
  • the modified display parameters may be further over-driven, so as to accelerate the response speed of the liquid crystal in the liquid crystal display device, achieve drive enhancement, and improve the display effect.
  • the present application also proposes a display driving device.
  • the display driving device includes a data control element 210, and the data control element 210 is configured to perform the following operations:
  • the modified display parameters of two adjacent frames at the corresponding position are differentiated to obtain a second difference, and the second difference is compared The absolute value of and the second preset threshold;
  • the modified display parameter of the current frame is modified to the modified display parameter of the previous frame.
  • the data control unit 210 may be a microprocessor to perform the above operations such as calculation and modification.
  • the original display parameters are obtained from the original display signal directly from the display signal source, and the modified display parameters are obtained from the processed modified display signal.
  • the cached original display parameters and modified display parameters are continuously overwritten and updated as the display progresses. Whether the displayed picture is a static picture is determined by determining the change of the original display parameters of two adjacent frames at the same position.
  • the absolute value of the difference between the original display parameters and the first preset threshold at each position in two adjacent frames can be compared to ensure the accuracy of the judgment; or a certain number of typical positions can be selected from the display screen or randomly Position comparison to simplify the comparison process and improve processing efficiency.
  • 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 The preset threshold; or considering the possible fluctuation, the absolute value of the difference of the original display parameters above a certain number may be less than or equal to the first preset threshold, that is, the picture at this time is regarded as a static picture.
  • the static pictures here are not necessarily strictly unchanged, but pictures with little change can also be classified into static pictures.
  • the absolute value of the difference between the correction display parameters of the two adjacent frames at the corresponding position and the second preset threshold are further compared to determine whether the correction process has caused a relationship between the display parameters of the two adjacent frames. Big influence.
  • the corresponding position may be the same as the position selected when judging the change of the original display parameters, or may be inconsistent, but it should be noted that the modified display parameters of two adjacent frames must be in the same position to be comparable .
  • the correction display parameters at each position can be compared, or a certain number of typical positions or random positions can be selected for comparison.
  • the modified display parameter of the current frame is modified to the modified display parameter of the previous frame. That is to say, in the above situation, continue to display with the modified display parameters of the previous frame, so as to avoid the flicker of the picture and improve the display effect.
  • the display driving device includes an SOC (not shown in the figure) and a TCON200, the SOC is connected to the display signal source; the TCON200 is connected to the SOC, and the data control element 210 is provided on the TCON200, wherein ,
  • the arrow indicates the flow direction of the display signal.
  • the SOC includes a first color processing element and an encoding element.
  • the first color processing element is connected to the display signal source, and the first color processing element is configured to perform preliminary color processing on the original display signal received from the display signal source;
  • the first color processing element is connected, and the encoding element is configured to encode the preliminary color processed signal according to a preset protocol.
  • preliminary color processing and coding according to a preset protocol are both implemented in the SOC, and the SOC is directly connected to the display signal source.
  • the preliminary color processing can improve the color of the display screen.
  • the encoding according to the preset protocol is to facilitate the transmission of the display signal from the SOC to the TCON.
  • the TCON 200 includes a decoding element 220, a second color processing element 230, a gamma element 240, a dither processing element 250, and a frame buffer 260.
  • the decoding element 220 is connected to the SOC, and the decoding element 220 is configured to decode the display signal received from the SOC according to a preset protocol.
  • the TCON200 receives the original display signal after preliminary color processing and encoding according to the preset protocol, it decodes according to the preset protocol to realize the restoration of the display signal.
  • the original display signal directly obtained from the display signal source generally has little change until this step of decoding, so in actual processing, the signal obtained after decoding can be directly used as the original display signal for subsequent Comparison and processing.
  • the frame buffer 260 directly reads the original display parameters and the modified display parameters of the previous frame from the decoding element 220 for storage.
  • the data control element 210 also directly reads the current frame from the decoding element 220
  • the original display parameters are not read from the display signal source or SOC.
  • the second color processing element 230 is connected to the decoding element 220, and the second color processing element 230 is configured to perform color processing on the decoded display signal again. By performing color processing on the decoded display signal again to improve the vividness of colors, etc., the display effect is improved.
  • the gamma element 240 is connected to the second color processing element 230.
  • the gamma element 240 is configured to perform gamma processing on the display signal subjected to the color processing again.
  • the purpose of the gamma processing is to compensate the non-linear characteristics of the display device and achieve distortion-free Display.
  • the dithering processing element 250 is connected to the gamma element 240.
  • the dithering processing element 250 is configured to perform dithering processing on the gamma-processed display signal to generate the modified display parameters of the current frame.
  • the dithering processing can realize more gray-scale display, making the display The transition of the picture is smoother.
  • the data control element 210 is connected to the decoding element 220, the jitter processing element 250 and the frame buffer 260 to obtain the original display parameters of the current frame from the decoding element 220, the modified display parameters of the current frame from the jitter processing element 250 and the self-frame buffer respectively
  • the area 260 obtains the original display parameter and the modified display parameter of the previous frame, and performs operations such as comparison and modification.
  • the over-driving element 270 may further over-drive the corrected display parameters to accelerate the response speed of the liquid crystal in the liquid crystal display device, enhance driving, and improve the display effect.
  • the present application also proposes a display device including a display panel 300; and a display driving device connected to the display panel 300.
  • the display driving device is configured to drive the display of the display panel.
  • the specific structure of the display driving device refers to the above-mentioned embodiments. Since this display device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments. Repeat.
  • the display panel may be a liquid crystal display panel or the like.
  • SOC100 can be set on the motherboard of a display signal source such as a TV.

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Abstract

一种显示驱动方法，获取相邻两帧处理前的原始显示参数和处理后的修正显示参数（S100）；将同一位置上相邻两帧的原始显示参数做差，获得第一差值，比对第一差值的绝对值和第一预设阈值（S200）；当第一差值的绝对值小于或等于第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，比对第二差值的绝对值和第二预设阈值（S310）；当第二差值的绝对值大于第二预设阈值时，修改当前帧的修正显示参数为前一帧的修正显示参数（S410）。

Description

显示驱动方法、显示驱动装置和显示装置
相关申请
本申请要求2018年12月12日申请的，申请号201811522749.7，名称为“显示驱动方法、显示驱动装置和显示装置”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及显示技术领域，特别涉及一种显示驱动方法、显示驱动装置和显示装置。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
在显示装置中，为了改善显示效果，通常会将从显示信号源直接接收到的原始显示信号进行一定的处理，如进行优化色彩、伽马调试、减少抖动等，而处理后所得的修正显示信号相对原始显示信号往往具有较大的变化。特别的，当显示装置所显示的为静态画面时，由于上述处理过程的差别，可能导致修正显示信号中相邻两帧的修正显示参数差别很大，与原始显示信号中相邻两帧的原始显示参数之间无差别或差别很小的情形不符，反映在最终的显示画面上，表现为静态画面的抖动，导致显示效果变差。
发明内容
本申请的主要目的是提出一种显示驱动方法、显示驱动装置和显示装置，旨在使显示画面与原始显示信号相符，改善显示效果。
为实现上述目的，本申请提出的显示驱动方法，包括以下步骤：
获取相邻两帧处理前的原始显示参数，并对所述原始显示参数进行修正处理，获得处理后的修正显示参数；
将同一位置上相邻两帧的原始显示参数做差，获得第一差值，并比对所述第一差值的绝对值和第一预设阈值；
当所述第一差值的绝对值小于或等于第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第二预设阈值；以及
当所述第二差值的绝对值大于第二预设阈值时，修改当前帧的修正显示参数为前一帧的修正显示参数。
为实现上述目的，本申请还提出一种显示驱动装置，所述显示驱动装置包括数据控制元件，所述数据控制元件设置为执行以下操作：获取相邻两帧处理前的原始显示参数，并对所述原始显示参数进行修正处理，获得处理后的修正显示参数；将同一位置上相邻两帧的原始显示参数做差，获得第一差值，并比对所述第一差值的绝对值和第一预设阈值；当所述第一差值的绝对值小于或等于第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第二预设阈值；以及当所述第二差值的绝对值大于第二预设阈值时，修改当前帧的修正显示参数为前一帧的修正显示参数。
为实现上述目的，本申请进一步提出一种显示装置，所述显示装置包括显示面板和显示驱动装置，所述显示驱动装置包括数据控制元件，所述数据控制元件设置为执行以下操作：获取相邻两帧处理前的原始显示参数，并对所述原始显示参数进行修正处理，获得处理后的修正显示参数；将同一位置上相邻两帧的原始显示参数做差，获得第一差值，并比对所述第一差值的绝对值和第一预设阈值；当所述第一差值的绝对值小于或等于第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第二预设阈值；以及当所述第二差值的绝对值大于第二预设阈值时，修改当前帧的修正显示参数为前一帧的修正显示参数。
本申请技术方案中，显示驱动方法包括以下步骤：获取相邻两帧处理前的原始显示参数和处理后的修正显示参数；比对同一位置上相邻两帧的原始显示参数的差的绝对值和第一预设阈值；当同一位置上相邻两帧的原始显示参数的差的绝对值小于或等于第一预设阈值时，比对对应位置上相邻两帧的修正显示参数的差的绝对值和第二预设阈值；当对应位置上相邻两帧的修正显示参数的差的绝对值大于第二预设阈值时，修改当前帧的修正显示参数为前一帧的修正显示参数。在本申请中，通过比对同一位置上相邻两帧的原始显示参数的差的绝对值和第一预设阈值，判断此时显示的画面是否为静态画面，当相邻两帧的原始显示参数的差的绝对值小于或等于第一预设阈值时，即此时显示画面为静态画面，进一步通过比对对应位置上相邻两帧的修正显示参数的差的绝对值和第二预设阈值，判断修正显示参数是否存在较大的变化，当相邻两帧的修正显示参数的差的绝对值大于第二预设阈值时，表明对应于静态画面的修正显示参数变化较大，可能造成画面的抖动，此时修改当前帧的修正显示参数为前一帧的修正显示参数，也就是以前一帧的修正显示参数代替当前帧的修正显示参数，从而保证最终显示的画面也是静态的，与原始显示信号相符，避免画面的抖动，改善显示效果。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为一范例中显示驱动装置的结构示意图；
图2为本申请一实施例的显示驱动方法的流程示意图；
图3为本申请一实施例的显示驱动装置中时序控制板的结构示意图；
图4为本申请一实施例的显示装置的结构示意图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，若本申请实施例中有涉及方向性指示（诸如上、下、左、右、前、后……），则该方向性指示仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。另外，全文中出现的“和/或”的含义为，包括三个并列的方案，以“A和/或B”为例，包括A方案，或B方案，或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
在一范例中，显示驱动装置的结构如图1所示，包括片上系统板（SOC，System on Chip）100’和时序控制板（TCON，Timing Controller）200’，其中箭头代表显示信号的流转方向。在显示驱动装置的运行过程中，SOC100’接收来自显示信号源的原始显示信号，原始显示信号经第一色彩处理元件110’处理，在编码元件120’中按照预设协议编码，以方便传输。第一帧缓冲区130’中可以存储一帧的原始显示参数和经第一色彩处理元件110’处理后的显示参数，以便调用。SOC100’和TCON200’之间按照预设协议进行信号的传输。TCON200’中的解码元件210’接收到显示信号后，按照预设协议解码，以还原显示信号。进一步的，显示信号经过第二色彩处理元件220’的色彩处理、伽马元件230’的伽马校正和抖动处理元件240’的抖动处理，产生修正显示信号。修正显示信号进一步经过驱动元件250’驱动加强后输出，以驱动画面的显示。而TCON200’中的第二帧缓冲区260’可以存储一帧的修正显示参数，以便调用。可见，原始显示信号经处理成为修正显示信号时，往往发生了很大的变化，可能导致静态画面的抖动。
本申请提出一种显示驱动方法，根据静态画面中相邻两帧的修正显示参数的变化情况，确定当前帧的修正显示参数，以避免静态画面的闪烁，改善显示效果。
在本申请的一实施例中，如图2所示，该显示驱动方法包括以下步骤：
步骤S100、获取相邻两帧处理前的原始显示参数，并对所述原始显示参数进行修正处理，获得处理后的修正显示参数；
其中，原始显示参数是根据直接来自显示信号源的原始显示信号得到的，修正显示参数是根据处理后的修正显示信号得到的。为了节约缓存空间，可以仅仅暂存当前帧和前一帧的整个显示画面的原始显示参数和修正显示参数，并随着显示的进行不断覆盖更新缓存的原始显示参数和修正显示参数。
步骤S200、将同一位置上相邻两帧的原始显示参数做差，获得第一差值，并比对所述第一差值的绝对值和第一预设阈值；
通过确定同一位置上相邻两帧的原始显示参数的变化情况判断所显示的画面是否为静态画面。具体的，可以分别比较相邻两帧中各个位置上的原始显示参数的差的绝对值和第一预设阈值，以保障判断的准确性；或者从显示画面中挑选一定数目的典型位置或者随机位置进行比对，以简化比对过程，提高处理效率。
步骤S310、当所述第一差值的绝对值小于或等于第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第二预设阈值；
当同一位置上相邻两帧的原始显示参数的差的绝对值小于或等于第一预设阈值时，具体的，可以是所有被比较的原始显示参数的差的绝对值均小于或等于第一预设阈值；或者考虑到可能存在的波动，也可以是一定数目以上的原始显示参数的差的绝对值小于或等于第一预设阈值时，即认为此时的画面为静态画面。需要注意的是，这里的静态画面不一定是严格不变的，而是可以将变化很小的画面也归类到静态画面中。在显示静态画面时，进一步比对对应位置上相邻两帧的修正显示参数的差的绝对值和第二预设阈值，以判断对原始显示信号的处理过程是否对相邻两帧的显示参数的关系造成了较大的影响。其中，对应位置可以与判断原始显示参数的变化情况时所选择的位置完全一致，也可以不一致，但需要注意的是，相邻两帧的修正显示参数必须是同一位置上的，方具有可比性。同样，可以对各个位置上的修正显示参数均进行比对，也可以选择一定数目的典型位置或者随机位置进行比对。
步骤S410、当所述第二差值的绝对值大于第二预设阈值时，修改当前帧的修正显示参数为前一帧的修正显示参数。
当对应位置上相邻两帧的修正显示参数的差的绝对值大于第二预设阈值时，表明在原始显示参数随时间不变或者变化不大的情形下，修正显示参数随时间发生了较大的变化，因此，为了避免画面的抖动，修改当前帧的修正显示参数为前一帧的修正显示参数。也就是说，在上述情形下，以之前一帧的修正显示参数继续显示，从而避免画面的抖动，改善显示效果。
在一具体示例中，假设同一位置上当前帧处理前的原始显示参数为a，处理后的修正显示参数为b，前一帧处理前的原始显示参数为a’，处理后的修正显示参数为b’，其中，△1=|a-a’|，△2=|b-b’|。当△1=0，即a和a’相一致时，若△2>2，则认为原始显示参数经处理后所得的修正显示参数发生了较大的变化，可能引起画面的闪烁，则将当前帧的修正显示参数由b修改为b’，即选择前一帧的修正显示参数驱动显示，避免闪烁的发生。
在本实施例中，显示驱动方法包括以下步骤：获取相邻两帧处理前的原始显示参数和处理后的修正显示参数；比对同一位置上相邻两帧的原始显示参数的差的绝对值和第一预设阈值；当同一位置上相邻两帧的原始显示参数的差的绝对值小于或等于第一预设阈值时，比对对应位置上相邻两帧的修正显示参数的差的绝对值和第二预设阈值；当对应位置上相邻两帧的修正显示参数的差的绝对值大于第二预设阈值时，修改当前帧的修正显示参数为前一帧的修正显示参数。通过比对同一位置上相邻两帧的原始显示参数的差的绝对值和第一预设阈值，判断此时显示的画面是否为静态画面，当相邻两帧的原始显示参数的差的绝对值小于或等于第一预设阈值时，即此时显示画面为静态画面，进一步通过比对对应位置上相邻两帧的修正显示参数的差的绝对值和第二预设阈值，判断修正显示参数是否存在较大的变化，当相邻两帧的修正显示参数的差的绝对值大于第二预设阈值时，表明对应于静态画面的修正显示参数变化较大，可能造成画面的抖动，此时修改当前帧的修正显示参数为前一帧的修正显示参数，也就是以前一帧的修正显示参数代替当前帧的修正显示参数，从而保证最终显示的画面也是静态的，与原始显示信号相符，避免画面的抖动，改善显示效果。
在一实施例中，在步骤S200之后，显示驱动方法还包括以下步骤：
步骤S320、当所述第一差值的绝对值大于第一预设阈值时，保持当前帧的修正显示参数不变。
也就是说，当显示画面本身存在较大的变化时，可以不用考虑静态画面中的抖动问题，即不用再进一步比对对应位置上相邻两帧的修正显示参数的变化，而直接输出当前帧的修正显示参数驱动显示即可。当然，在比对过程中，可以分别比对各个位置上相邻两帧的原始显示参数的变化，也可以选择一定数目的典型位置或者随机位置进行比较，以简化比较过程，提高处理效率。
在一具体示例中，若计算得出△1较大，即a’和a的差异较大时，对应于画面的变化较大，此时可不改变修正显示参数，直接输出修正显示参数b驱动显示。
或者，当显示画面为静态画面时，在将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第二预设阈值的步骤之后，显示驱动方法还包括以下步骤：
步骤S420、当所述第二差值的绝对值小于或等于第二预设阈值时，保持当前帧的修正显示参数不变。
也就是说，虽然显示画面为静态画面，但是若经过处理后得到的对应位置上相邻两帧的修正显示参数的变化不大，那么也可以直接以当前帧的修正显示参数驱动显示，特别是在变化缓慢的相对静态的画面中，这种处理方式在减小了抖动的同时，可以保障画面的平滑过渡，有助于改善显示效果。同理，可以比对各个对应位置上的修正显示参数，也可以选择一定数目的典型位置或者随机位置进行比较。
在一具体示例中，若计算得出△1=0，即a’和a相一致时，对应于静态画面的显示，若△2=0，此时可不改变修正显示参数，直接输出修正显示参数b驱动显示。
在上述实施例中，第一预设阈值小于或等于第二预设阈值。对于静态画面而言，可以给予修正显示参数一定的冗余度，以保障对原始显示参数的处理效果。当然，为了有效避免闪烁，需要注意的是第二预设阈值也不能设置得过大。第一预设阈值和第二预设阈值可以根据实际需求设置，下表所示为一种具体的设置方式（假设最大灰阶值为255，第一预设阈值和第二预设阈值通过灰阶值表示）：
第一预设阈值 第二预设阈值
0 2
1 3
2 4
3 6
在一实施例中，步骤S100包括：
步骤S110、接收经初步色彩处理和按照预设协议编码后传输的原始显示信号；
其中，初步色彩处理和按照预设协议的编码通常是在SOC中实现的，SOC与显示信号源直接相连。初步色彩处理可以改善显示画面的色彩，而按照预设协议编码是为了方便显示信号从SOC传输至TCON中。
步骤S120、按照预设协议解码接收到的显示信号；
当TCON接收到经初步色彩处理和按照预设协议编码后传输的原始显示信号后，按照预设协议进行解码以实现对显示信号的还原。需要注意的是，直接由显示信号源得到的原始显示信号在直至这一步解码之后的变化通常都很小，故而在实际处理中，可以直接以解码后所得到的信号作为原始显示信号，进行后续的比对和处理。
步骤S130、对解码后的显示信号进行再次色彩处理、伽马处理和抖动处理，得到修正显示信号；
通过对解码后的显示信号进行再次色彩处理，以提高色彩鲜艳度等，改善显示效果。进一步进行伽马处理的作用是补偿显示装置的非线性特性，实现无失真的显示。而抖动处理可以实现更多灰阶的显示，使得显示画面的过渡更加平滑。经过上述再次色彩处理、伽马处理和抖动处理后，得到修正显示信号。
步骤S140、根据原始显示信号和修正显示信号，获取相邻两帧处理前的原始显示参数和处理后的修正显示参数。
原始显示信号和修正显示信号反映的是随时间变化的显示参数，因此，根据原始显示信号和修正显示信号，可以获取相邻两帧处理前的原始显示参数和处理后的修正显示参数，以待进一步的处理。
在一实施例中，在步骤S200之后，显示驱动方法还包括以下步骤：
步骤S330、当所述第一差值的绝对值小于或等于第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第三预设阈值；
步骤S430、当所述第二差值的绝对值大于第三预设阈值时，生成提示信号；
其中，第三预设阈值大于第二预设阈值。
在本实施例中，当相邻两帧的原始显示参数的差的绝对值小于或等于第一预设阈值时，为了避免对原始显示信号的处理过程本身具有较大的偏差，而导致静态画面的相邻两帧的修正显示参数始终存在很大的变化，则比对相邻两帧的修正显示参数的差的绝对值和第三预设阈值。当相邻两帧的修正显示参数的差的绝对值大于第三预设阈值时，表明此时处理过程本身可能存在问题，即色彩处理、伽马处理或抖动处理中的某一个或某几个环节存在较大的偏离，则生成提示信号，以便进行检修维护。
在上述各实施例中，当得到当前帧的最终的修正显示参数之后，还可以进一步对修正显示参数进行过驱动处理，以加速液晶显示装置中液晶的响应速度，实现驱动加强，改善显示效果。
如图3所示，本申请还提出一种显示驱动装置，显示驱动装置包括数据控制元件210，数据控制元件210设置为执行以下操作：
获取相邻两帧处理前的原始显示参数，并对所述原始显示参数进行修正处理，获得处理后的修正显示参数；
将同一位置上相邻两帧的原始显示参数做差，获得第一差值，并比对所述第一差值的绝对值和第一预设阈值；
当所述第一差值的绝对值小于或等于第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第二预设阈值；以及
当所述第二差值的绝对值大于第二预设阈值时，修改当前帧的修正显示参数为前一帧的修正显示参数。
其中，数据控制单元210可以是一微处理器，以执行上述运算和修改等操作。其中，原始显示参数是根据直接来自显示信号源的原始显示信号得到的，修正显示参数是根据处理后的修正显示信号得到的。为了节约缓存空间，可以仅仅暂存当前帧和前一帧的整个显示画面的原始显示参数和修正显示参数，并随着显示的进行不断覆盖更新缓存的原始显示参数和修正显示参数。通过确定同一位置上相邻两帧的原始显示参数的变化情况判断所显示的画面是否为静态画面。具体的，可以分别比较相邻两帧中各个位置上的原始显示参数的差的绝对值和第一预设阈值，以保障判断的准确性；或者从显示画面中挑选一定数目的典型位置或者随机位置进行比对，以简化比对过程，提高处理效率。当同一位置上相邻两帧的原始显示参数的差的绝对值小于或等于第一预设阈值时，具体的，可以是所有被比较的原始显示参数的差的绝对值均小于或等于第一预设阈值；或者考虑到可能存在的波动，也可以是一定数目以上的原始显示参数的差的绝对值小于或等于第一预设阈值时，即认为此时的画面为静态画面。需要注意的是，这里的静态画面不一定是严格不变的，而是可以将变化很小的画面也归类到静态画面中。在显示静态画面时，进一步比对对应位置上相邻两帧的修正显示参数的差的绝对值和第二预设阈值，以判断修正过程是否对相邻两帧的显示参数的关系造成了较大的影响。其中，对应位置可以与判断原始显示参数的变化情况时所选择的位置完全一致，也可以不一致，但需要注意的是，相邻两帧的修正显示参数必须是同一位置上的，方具有可比性。同样，可以对各个位置上的修正显示参数均进行比对，也可以选择一定数目的典型位置或者随机位置进行比对。当对应位置上相邻两帧的修正显示参数的差的绝对值大于第二预设阈值时，表明在原始显示参数随时间不变或者变化不大的情形下，修正显示参数随时间发生了较大的变化，因此，为了避免画面的抖动，修改当前帧的修正显示参数为前一帧的修正显示参数。也就是说，在上述情形下，以之前一帧的修正显示参数继续显示，从而避免画面的抖动，改善显示效果。
在一实施例中，如图3所示，显示驱动装置包括SOC（图中未示出）和TCON200，SOC与显示信号源相连；TCON200与SOC相连，且数据控制元件210设于TCON200上，其中，箭头表示显示信号的流转方向。通过对TCON200进行改进，有助于充分利用TCON200中其它元件的处理能力，实现数据控制元件210与其它元件之间的整合，降低了显示装置的成本。
具体的，SOC包括第一色彩处理元件和编码元件，第一色彩处理元件与显示信号源相连，第一色彩处理元件设置为对接收自显示信号源的原始显示信号进行初步色彩处理；编码元件与第一色彩处理元件相连，编码元件设置为对经初步色彩处理的信号按照预设协议编码。其中，初步色彩处理和按照预设协议的编码均在SOC中实现，而SOC与显示信号源直接相连。初步色彩处理可以改善显示画面的色彩，按照预设协议编码是为了方便显示信号从SOC传输至TCON中。
TCON200包括解码元件220，第二色彩处理元件230，伽马元件240，抖动处理元件250和帧缓冲区260。解码元件220与SOC相连，解码元件220设置为对接收自SOC的显示信号按照预设协议解码。当TCON200接收到经初步色彩处理和按照预设协议编码后传输的原始显示信号后，按照预设协议进行解码以实现对显示信号的还原。需要注意的是，直接由显示信号源得到的原始显示信号在直至这一步解码之后的变化通常都很小，故而在实际处理中，可以直接以解码后所得到的信号作为原始显示信号，进行后续的比对和处理。也就是在图3中，帧缓冲区260直接从解码元件220中读取前一帧的原始显示参数和修正显示参数以存储，同理，数据控制元件210也是直接从解码元件220读取当前帧的原始显示参数，而不是从显示信号源或SOC中读取。这种设置方式有助于简化显示驱动装置的连接和封装结构。第二色彩处理元件230与解码元件220相连，第二色彩处理元件230设置为对解码后的显示信号进行再次色彩处理。通过对解码后的显示信号进行再次色彩处理，以提高色彩鲜艳度等，改善显示效果。伽马元件240与第二色彩处理元件230相连，伽马元件240设置为对经再次色彩处理的显示信号进行伽马处理，进行伽马处理的作用是补偿显示装置的非线性特性，实现无失真的显示。抖动处理元件250与伽马元件240相连，抖动处理元件250设置为对经伽马处理的显示信号进行抖动处理，产生当前帧的修正显示参数，抖动处理可以实现更多灰阶的显示，使得显示画面的过渡更加平滑。数据控制元件210与解码元件220、抖动处理元件250和帧缓冲区260相连，以分别自解码元件220获取当前帧的原始显示参数、自抖动处理元件250获取当前帧的修正显示参数以及自帧缓冲区260获取前一帧的原始显示参数和修正显示参数，并执行比对和修改等操作。
在上述各实施例中，还可以通过过驱动元件270进一步对修正显示参数进行过驱动处理，以加速液晶显示装置中液晶的响应速度，实现驱动加强，改善显示效果。
如图4所示，本申请还提出一种显示装置，显示装置包括显示面板300；以及显示驱动装置，显示驱动装置与显示面板300相连，显示驱动装置设置为驱动显示面板的显示。该显示驱动装置的具体结构参照上述实施例，由于本显示装置采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。具体的，该显示面板可以是液晶显示面板等。其中，SOC100可以设置在电视等显示信号源的主板上。
以上仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是在本申请的发明构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (18)

  1. 一种显示驱动方法，其中，所述显示驱动方法包括以下步骤：
    获取相邻两帧处理前的原始显示参数，并对所述原始显示参数进行修正处理，获得处理后的修正显示参数；
    将同一位置上相邻两帧的原始显示参数做差，获得第一差值，并比对所述第一差值的绝对值和第一预设阈值；
    当所述第一差值的绝对值小于或等于所述第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第二预设阈值；以及
    当所述第二差值的绝对值大于所述第二预设阈值时，修改当前帧的修正显示参数为前一帧的修正显示参数。
  2. 如权利要求1所述的显示驱动方法，其中，在所述将同一位置上相邻两帧的原始显示参数做差，获得第一差值，并比对所述第一差值的绝对值和第一预设阈值的步骤之后，所述显示驱动方法还包括以下步骤：
    当所述第一差值的绝对值大于所述第一预设阈值时，保持当前帧的修正显示参数不变；或，
    在所述将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第二预设阈值的步骤之后，所述显示驱动方法还包括以下步骤：
    当所述第二差值的绝对值小于或等于所述第二预设阈值时，保持当前帧的修正显示参数不变。
  3. 如权利要求1所述的显示驱动方法，其中，所述第一预设阈值小于或等于所述第二预设阈值。
  4. 如权利要求1所述的显示驱动方法，其中，所述获取相邻两帧处理前的原始显示参数，并对所述原始显示参数进行修正处理，获得处理后的修正显示参数的步骤包括：
    接收经初步色彩处理和按照预设协议编码后传输的原始显示信号；
    按照所述预设协议解码接收到的显示信号；
    对解码后的显示信号进行再次色彩处理、伽马处理和抖动处理，得到修正显示信号；以及
    根据所述原始显示信号和所述修正显示信号，获取相邻两帧处理前的原始显示参数和处理后的修正显示参数。
  5. 如权利要求2所述的显示驱动方法，其中，所述获取相邻两帧处理前的原始显示参数，并对所述原始显示参数进行修正处理，获得处理后的修正显示参数的步骤包括：
    接收经初步色彩处理和按照预设协议编码后传输的原始显示信号；
    按照所述预设协议解码接收到的显示信号；
    对解码后的显示信号进行再次色彩处理、伽马处理和抖动处理，得到修正显示信号；以及
    根据所述原始显示信号和所述修正显示信号，获取相邻两帧处理前的原始显示参数和处理后的修正显示参数。
  6. 如权利要求1所述的显示驱动方法，其中，在所述将同一位置上相邻两帧的原始显示参数做差，获得第一差值，并比对所述第一差值的绝对值和第一预设阈值的步骤之后，所述显示驱动方法还包括以下步骤：
    当所述第一差值的绝对值小于或等于所述第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第三预设阈值；以及
    当所述第二差值的绝对值大于所述第三预设阈值时，生成提示信号；
    其中，所述第三预设阈值大于所述第二预设阈值。
  7. 如权利要求2所述的显示驱动方法，其中，在所述将同一位置上相邻两帧的原始显示参数做差，获得第一差值，并比对所述第一差值的绝对值和第一预设阈值的步骤之后，所述显示驱动方法还包括以下步骤：
    当所述第一差值的绝对值小于或等于所述第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第三预设阈值；以及
    当所述第二差值的绝对值大于所述第三预设阈值时，生成提示信号；
    其中，所述第三预设阈值大于所述第二预设阈值。
  8. 如权利要求1所述的显示驱动方法，其中，所述修改当前帧的修正显示参数为前一帧的修正显示参数的步骤之后，还包括：
    对当前帧的修正显示参数进行过驱动处理。
  9. 如权利要求1所述的显示驱动方法，其中，所述对应位置上相邻两帧的修正显示参数为同一位置上相邻两帧的修正显示参数。
  10. 一种显示驱动装置，其中，所述显示驱动装置包括数据控制元件，所述数据控制元件设置为执行以下操作：
    获取相邻两帧处理前的原始显示参数，并对所述原始显示参数进行修正处理，获得处理后的修正显示参数；
    将同一位置上相邻两帧的原始显示参数做差，获得第一差值，并比对所述第一差值的绝对值和第一预设阈值；
    当所述第一差值的绝对值小于或等于第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第二预设阈值；以及
    当所述第二差值的绝对值大于所述第二预设阈值时，修改当前帧的修正显示参数为前一帧的修正显示参数。
  11. 如权利要求10所述的显示驱动装置，其中，所述显示驱动装置包括：
    片上系统板，所述片上系统板与显示信号源相连；以及
    时序控制板，所述时序控制板与所述片上系统板相连，且所述数据控制元件设于所述时序控制板上。
  12. 如权利要求11所述的显示驱动装置，其中，所述片上系统板包括：
    第一色彩处理元件，所述第一色彩处理元件与所述显示信号源相连，所述第一色彩处理元件设置为对接收自所述显示信号源的原始显示信号进行初步色彩处理；以及
    编码元件，所述编码元件与所述第一色彩处理元件相连，所述编码元件设置为对经初步色彩处理的显示信号按照预设协议编码。
  13. 如权利要求11所述的显示驱动装置，其中，所述时序控制板包括：
    解码元件，所述解码元件与所述片上系统板相连，所述解码元件设置为对接收自所述片上系统板的显示信号按照预设协议解码；
    第二色彩处理元件，所述第二色彩处理元件与所述解码元件相连，所述第二色彩处理元件设置为对解码后的显示信号进行再次色彩处理；
    伽马元件，所述伽马元件与所述第二色彩处理元件相连，所述伽马元件设置为对经再次色彩处理的显示信号进行伽马处理；
    抖动处理元件，所述抖动处理元件与所述伽马元件相连，所述抖动处理元件设置为对经伽马处理的显示信号进行抖动处理，产生当前帧的修正显示参数；以及
    帧缓冲区，所述帧缓冲区与所述解码元件相连，所述帧缓冲区设置为存储前一帧的原始显示参数和修正显示参数；
    所述数据控制元件与所述解码元件、所述抖动处理元件和所述帧缓冲区相连，以分别自所述解码元件获取当前帧的原始显示参数、自所述抖动处理元件获取当前帧的修正显示参数以及自所述帧缓冲区获取前一帧的原始显示参数和修正显示参数。
  14. 一种显示装置，其中，所述显示装置包括：
    显示面板；以及
    显示驱动装置，所述显示驱动装置与所述显示面板相连，所述显示驱动装置设置为驱动所述显示面板的显示，所述显示驱动装置包括数据控制元件，所述数据控制元件设置为执行以下操作：
    获取相邻两帧处理前的原始显示参数，并对所述原始显示参数进行修正处理，获得处理后的修正显示参数；
    将同一位置上相邻两帧的原始显示参数做差，获得第一差值，并比对所述第一差值的绝对值和第一预设阈值；
    当所述第一差值的绝对值小于或等于第一预设阈值时，将对应位置上相邻两帧的修正显示参数做差，获得第二差值，并比对所述第二差值的绝对值和第二预设阈值；以及
    当所述第二差值的绝对值大于所述第二预设阈值时，修改当前帧的修正显示参数为前一帧的修正显示参数。
  15. 如权利要求14所述的显示装置，其中，所述显示驱动装置包括：
    片上系统板，所述片上系统板与显示信号源相连；以及
    时序控制板，所述时序控制板与所述片上系统板相连，且所述数据控制元件设于所述时序控制板上。
  16. 如权利要求15所述的显示装置，其中，所述片上系统板包括：
    第一色彩处理元件，所述第一色彩处理元件与所述显示信号源相连，所述第一色彩处理元件设置为对接收自所述显示信号源的原始显示信号进行初步色彩处理；以及
    编码元件，所述编码元件与所述第一色彩处理元件相连，所述编码元件设置为对经初步色彩处理的显示信号按照预设协议编码。
  17. 如权利要求15所述的显示装置，其中，所述时序控制板包括：
    解码元件，所述解码元件与所述片上系统板相连，所述解码元件设置为对接收自所述片上系统板的显示信号按照预设协议解码；
    第二色彩处理元件，所述第二色彩处理元件与所述解码元件相连，所述第二色彩处理元件设置为对解码后的显示信号进行再次色彩处理；
    伽马元件，所述伽马元件与所述第二色彩处理元件相连，所述伽马元件设置为对经再次色彩处理的显示信号进行伽马处理；
    抖动处理元件，所述抖动处理元件与所述伽马元件相连，所述抖动处理元件设置为对经伽马处理的显示信号进行抖动处理，产生当前帧的修正显示参数；以及
    帧缓冲区，所述帧缓冲区与所述解码元件相连，所述帧缓冲区设置为存储前一帧的原始显示参数和修正显示参数；
    所述数据控制元件与所述解码元件、所述抖动处理元件和所述帧缓冲区相连，以分别自所述解码元件获取当前帧的原始显示参数、自所述抖动处理元件获取当前帧的修正显示参数以及自所述帧缓冲区获取前一帧的原始显示参数和修正显示参数。
  18. 如权利要求14所述的显示装置，其中，所述显示面板为液晶显示面板。
PCT/CN2019/123086 2018-12-12 2019-12-04 显示驱动方法、显示驱动装置和显示装置 Ceased WO2020119558A1 (zh)

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