WO2021134825A1 - 显示装置及其过驱动方法 - Google Patents

显示装置及其过驱动方法 Download PDF

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Publication number
WO2021134825A1
WO2021134825A1 PCT/CN2020/071407 CN2020071407W WO2021134825A1 WO 2021134825 A1 WO2021134825 A1 WO 2021134825A1 CN 2020071407 W CN2020071407 W CN 2020071407W WO 2021134825 A1 WO2021134825 A1 WO 2021134825A1
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WO
WIPO (PCT)
Prior art keywords
gray level
line
overdrive
sub
feedback
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Ceased
Application number
PCT/CN2020/071407
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English (en)
French (fr)
Inventor
高翔
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TCL China Star Optoelectronics Technology Co Ltd
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TCL China Star Optoelectronics Technology Co Ltd
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Priority to US16/640,835 priority Critical patent/US20210407368A1/en
Publication of WO2021134825A1 publication Critical patent/WO2021134825A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • 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
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0291—Details of output amplifiers or buffers arranged for use in a driving circuit
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/16—Determination of a pixel data signal depending on the signal applied in the previous frame

Definitions

  • This application relates to the field of display technology, and in particular to a display device and an overdrive method thereof.
  • the prior art proposes an overdrive technology (over driver, OD) to enable the liquid crystal to achieve the expected deflection target in a short time.
  • OD over driver
  • the principle of the OD technology is: when the data signal on a data line needs to be grayscale from the previous line When switching to the current line target gray level, if only the driving voltage of the current line target gray level is given, due to the slow response speed of liquid crystal inversion, it cannot actually reach the current line target gray level that we need.
  • the existing overdrive technology can better improve the problem of insufficient charging caused by gray-scale jumps, it still has the following drawbacks:
  • the data line is current when the gray-scale jumps are performed.
  • the line target gray level is compared with the input gray level of the previous line.
  • the gray level of the current line has a jump, but the gray level of the next line has no jump, it will cause the sub-pixels of the next line to be overcharged.
  • the green (G) sub-pixels, blue (B) sub-pixels, and red (R) sub-pixels are sub-pixels connected to the same data line and arranged in columns.
  • the G sub-pixels are 64 gray when charged.
  • the target gray level of the current line is 64 gray levels
  • the B sub-pixel is 0 gray levels when charging, that is, the input gray level of the previous line is 0 gray levels
  • the R sub-pixel is 64 gray levels when charging, that is, the target gray level of the next line It is 64 gray levels.
  • the overdrive gray level of the current line is found to be 86 gray level, so as to load the data line
  • the overdrive voltage corresponding to 86 gray scales makes the average voltage charged to the G sub-pixels the target voltage U1; when charging the R sub-pixels in the next row, the target gray scales of the previous row and the current row are both 64 grays If the overdrive gray level of the current row is still 64 gray level, the data line does not jump, but due to the influence of parasitic capacitance, the average voltage charged to the R sub-pixel will be higher than the target voltage U1, which will cause R The sub-pixel is overcharged.
  • the embodiment of the present application provides a display device and an overdrive method thereof to solve the overdrive method of the existing display device.
  • the data line undergoes a grayscale jump, there is a grayscale jump of the current row, but the next line
  • the non-jumping of the gray scale causes the sub-pixels in the next row to be overcharged, which in turn affects the technical problems of the display.
  • the embodiment of the present application provides an overdrive method of a display device, which includes the following steps:
  • a display panel is provided, the display panel includes a plurality of arrays of sub-pixels and a plurality of data lines, and each column of the sub-pixels is correspondingly connected to one of the data lines;
  • the S10 further includes: dividing the display panel into a plurality of compensation areas, and the plurality of sub-pixels in each compensation area are configured with the same voltage compensation coefficient.
  • the S20 further includes: searching for an overdriving gray scale according to a preset overdriving look-up table, the current row target gray scale, and the previous row input gray scale, and loading the data line with the overdriving gray scale.
  • the overdrive voltage corresponding to the step is a preset overdriving look-up table, the current row target gray scale, and the previous row input gray scale, and loading the data line with the overdriving gray scale.
  • the obtaining of the overdrive voltage includes:
  • the timing controller receives the target gray level of the current line from the image data source and the input gray level of the previous line from the buffer;
  • the timing controller inputs the driving signal of the data line to the source driver
  • the source driver loads the data line with the overdrive voltage corresponding to the overdrive gray scale.
  • the current row target gray level from the image data source is input into the timing controller and the feedback look-up table separately.
  • the gray levels of the previous line from the line buffer are respectively input into the timing controller and the feedback look-up table.
  • the gain coefficient corresponding to the feedback gray scale is matched according to the compensation area where the sub-pixel corresponding to the data line is located.
  • An embodiment of the present application also provides an overdrive method of a display device, including the following steps:
  • a display panel is provided, the display panel includes a plurality of arrays of sub-pixels and a plurality of data lines, and each column of the sub-pixels is correspondingly connected to one of the data lines;
  • the S20 further includes:
  • the obtaining of the overdrive voltage includes:
  • the timing controller receives the target gray level of the current line from the image data source and the input gray level of the previous line from the buffer;
  • the timing controller inputs the driving signal of the data line to the source driver
  • the source driver loads the data line with the overdrive voltage corresponding to the overdrive gray scale.
  • the current row target gray level from the image data source is input into the timing controller and the feedback look-up table separately.
  • the gray levels of the previous line from the line buffer are respectively input into the timing controller and the feedback look-up table.
  • the S10 further includes: dividing the display panel into a plurality of compensation areas, and the plurality of sub-pixels in each compensation area are configured with the same voltage compensation coefficient.
  • the gain coefficient corresponding to the feedback gray scale is matched according to the compensation area where the sub-pixel corresponding to the data line is located.
  • An embodiment of the application provides a display device, including a display panel, a timing controller, a line buffer connected to the timing controller, a feedback lookup table connected to the line buffer, and a feedback lookup table,
  • the line buffer is connected to a gain lookup table;
  • the display panel includes a plurality of arrays of sub-pixels and a plurality of data lines, and each column of the sub-pixels is correspondingly connected to one of the data lines;
  • the line buffer is used In a frame of picture, when the data signal on a data line needs to be switched from the gray level of the previous line to the target gray level of the current line, the input gray level of the previous line is stored and the input gray level is input to the timing controller and the feedback look-up table.
  • the input gray level of the previous line is used to read the input gray level of the previous line and the target gray level of the current line, and find the feedback gray level;
  • the gain look-up table is used to read the feedback gray level And find the gain gray scale, and when the data line performs the next gray scale switching, the gain gray scale is used as the input gray scale of the previous row.
  • the display device further includes an overdrive look-up table connected to the timing controller, and a source driver connected to the timing controller and the display panel;
  • the driving look-up table is used to compare the current line target gray level with the previous line input gray level, and find the over-driving gray level.
  • the display panel further includes a plurality of compensation areas, and the plurality of sub-pixels in each compensation area are configured with the same voltage compensation coefficient.
  • the display device further includes a gate driver connected to the timing controller, and the gate driver is connected to the display panel.
  • the display panel further includes a plurality of scan lines connected to the source driver, and each row of the sub-pixels is correspondingly connected to the same scan line.
  • the line overdrive technology has a feedback function, so that the actual drive voltage data of the data line is stored in the line buffer, so as to avoid the line overdrive technology causing the sub-pixels of the next line to be overcharged , which in turn makes the panel charging more accurate.
  • FIG. 1 is a schematic diagram of a charging curve of a sub-pixel in the prior art
  • FIG. 2 is a schematic structural diagram of a display device according to an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of a display panel according to an embodiment of the application.
  • Figure 4 is a flowchart of the steps of the overdrive method of the display device of the embodiment of the present application.
  • FIG. 5 is a schematic diagram of partitions of a display panel according to an embodiment of the application.
  • FIG. 6 is a schematic diagram of a sub-pixel charging curve according to an embodiment of the application.
  • FIG. 7 is a schematic diagram of the principle of charging sub-pixels in the current row according to an embodiment of the application.
  • FIG. 8 is a schematic diagram of the principle of charging the sub-pixels in the next row according to an embodiment of the application.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, “multiple” means two or more than two, unless otherwise specifically defined.
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction of two components relationship.
  • connection should be understood according to specific circumstances.
  • the "on" or “under” of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features Not in direct contact but through other features between them.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • an embodiment of the present invention provides an overdrive method for a display device 100, which includes the following steps:
  • the display panel 10 includes a plurality of sub-pixels 13 and a plurality of data lines 11 arranged in an array, and each column of the sub-pixels 13 is correspondingly connected to one of the data lines 11;
  • S30 Obtain the gain gray scale according to the preset gain look-up table 30 and the feedback gray scale search, and store the gain gray scale in the row buffer 40.
  • the gain gray scale is used as the input gray scale of the previous line.
  • the S20 further includes: searching for an overdrive gray level according to a preset overdrive look-up table 60, the current row target gray level, and the previous row input gray level, and loading the data line 11 with the overdrive gray level.
  • the overdrive voltage corresponding to the drive gray scale is not limited to the drive gray scale.
  • the display device 100 further includes a timing controller 50 and a source driver 70 connected to the timing controller 50.
  • the timing controller 50 transmits a driving signal to the source driver 70
  • the source driver 70 transmits a driving signal to the source driver 70.
  • the display panel is loaded with a driving voltage.
  • the S20 specifically includes: first, the timing controller 50 receives the current line target gray level from the image data source and the previous line input gray level from the line buffer 40;
  • the timing controller 50 inputs the driving signal of the data line to the source driver
  • the source driver 70 loads the data line 11 with the overdrive voltage corresponding to the overdrive gray scale.
  • the target gray level of the current line from the image data source is performed in two ways, and one is input to the timing control
  • the other input is to the feedback lookup table 20; the gray level input from the previous line in the line buffer 40 is divided into two channels, one is input to the timing controller 50, and the other is input to the feedback lookup Table 20, so that when the overdrive gray level is searched in the overdrive look-up table 60, the charge state of the sub-pixel 13 in the current row is searched in the feedback look-up table to obtain the feedback gray level, so as to ensure that the next row
  • the gray scale stored in the buffer 40 is the gray scale corresponding to the current actual driving voltage, so as to avoid the occurrence of overcharging when the sub-pixels 13 in the next row are charged.
  • the S10 further includes: dividing the display panel 10 into a plurality of compensation areas, and the plurality of sub-pixels in each compensation area are configured with the same voltage compensation coefficient.
  • the display panel 10 is divided into six compensation areas, for example, two compensation areas N+1 and N-1 located in the middle, and two compensation areas N+1 are located in the middle. Two compensation areas N+2 at the end and two compensation areas N-2 at both ends of the compensation area N-1. Compensation areas with different numbers correspond to different voltage compensation coefficients, and compensation areas with the same number correspond to the same voltage compensation coefficients. Since the charging conditions of the sub-pixels 13 in different positions of the display panel 10 are affected by different resistance and capacitance, it is necessary to configure different compensation values for each compensation area of the display panel 10 to reduce or even eliminate the corresponding compensation area. The sub-pixel 13 is affected by the resistance and capacitance during charging.
  • the gain coefficient corresponding to the feedback gray scale is matched.
  • the corresponding gain coefficient is searched in the gain look-up table, and the gain coefficient is multiplied by the The gray scale is fed back to obtain the gain gray scale, the gain gray scale is stored in the line buffer 40, and the gain gray scale is used as the previous line input gray scale when the data line 11 performs the next gray scale conversion Input to the timing controller 50 for use.
  • the timing controller 50 is also connected to the gate driver 80 to send scan signals to the gate driver 80; the gate driver 80 loads the scan signals to the display panel 10.
  • the display panel 10 further includes a plurality of scan lines 12, and each row of the sub-pixels 13 is correspondingly connected to the same scan line 12.
  • the gate driver 80 sends a scanning signal to the scanning line 12, and the scanning line realizes the progressive scanning of the sub-pixels 13.
  • the display panel 10 may be a display panel with a tri-gate structure, which can effectively reduce the number of data lines and the number of pins of the source driver, thereby reducing production costs.
  • the plurality of sub-pixels 13 include first sub-pixels, second sub-pixels, and third sub-pixels of different colors.
  • the sub-pixels 13 located in the same column are arranged in accordance with the order of the first sub-pixel, the second sub-pixel, and the third sub-pixel. The order is arranged one by one, and the colors of the sub-pixels 13 in the same row are the same. In other embodiments, there may be other sub-pixel arrangements, which are not limited here.
  • the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively a blue (B) sub-pixel, a green (G) sub-pixel, and a red (R) sub-pixel.
  • the data line 11 in the second column has 64 gray levels when charging the G sub-pixels in the second column and second row, that is, the current target gray level is 64 gray levels, and the upper When a row of sub-pixels are charged (ie, the B sub-pixels in the second column and one row), the gray level is 0, that is, the input gray level of the previous row is 0 gray.
  • the overdrive gray level is 86 gray level by looking up the overdrive look-up table 60
  • the data line 11 is loaded with a driving voltage corresponding to the 86 gray scale, so that the average voltage when the data line 11 charges the G sub-pixel is the target voltage U1.
  • the feedback gray level is 75 gray levels
  • the gain gray level is 75 gray levels
  • the 75 gray levels are stored in the line buffer 40 as the next time
  • the data line 11 performs the gray-scale conversion, the previous line of the input gray-scale data is used.
  • the data line 11 charges the R sub-pixels in the second column and third row to 64 gray levels, that is, the target gray level of the current row is 64 gray levels, the input gray level in the previous line is 73.
  • the overdrive gray level is 58 gray levels by looking up the overdrive look-up table 60.
  • the data line 11 is loaded with the driving voltage corresponding to the 58 gray level, so that the data line 11
  • the average voltage when the R sub-pixel is charged is the target voltage U1, so as to avoid overcharging.
  • the current target gray level is fed back, that is, the feedback gray level is 62 gray levels by looking up the feedback look-up table 20, Then go through the gain lookup table 30 to perform a partition search, and obtain the gain gray scale as 63 gray scales, and store the 63 gray scales in the row buffer 40 as the input gray scale of the previous line when the data line 11 performs the gray scale conversion next time. Level data usage.
  • the gray level stored in the line memory is the gray level corresponding to the actual voltage, which can solve the problem that the data line encounters the current gray level when charging the sub-pixels.
  • the gray scale of the next line does not jump, it causes the problem of overcharging of the sub-pixels in the next line.
  • the present application also provides a display device 100, including: a display panel 10, a timing controller 50, a line buffer 40 connected to the timing controller 50, a feedback look-up table 20 connected to the line buffer 40, and The gain lookup table 30 connected to the feedback lookup table 20 and the line buffer 40.
  • the display panel 10 includes a plurality of sub-pixels 13 and a plurality of data lines 11 arranged in an array, and each column of the sub-pixels 13 is correspondingly connected to one data line 11.
  • the line buffer 40 is used to store the input gray level of the previous line and send it to the timing controller when the data signal on a data line 11 needs to be switched from the gray level of the previous line to the target gray level of the current line in one frame of picture. 50 and the feedback look-up table 20 input the input gray level of the previous line.
  • the feedback look-up table 20 is used to read the input gray level of the previous line and the target gray level of the current line, and find the feedback gray level.
  • the gain look-up table 30 is used to read the feedback gray level and find the gain gray level. When the data line 11 performs the next gray level switching, the gain gray level is used as the input gray level of the previous row use.
  • the display panel 10 further includes a plurality of scan lines connected to the source driver, and each row of the sub-pixels is correspondingly connected to the same scan line.
  • the display device 100 further includes an overdrive look-up table 60 connected to the timing controller 50, a source driver 70 connected to the timing controller 50 and the display panel 10, and connected to the timing controller 50 The gate driver 80.
  • the display panel further includes a plurality of scan lines 12 connected to the source driver 70, each row of the sub-pixels 13 is correspondingly connected to the same scan line 12, the gate driver 80 and the display panel 10 connection; the overdrive look-up table 60 is used to compare the current line target gray level and the previous line input gray level, and find the overdrive gray level.
  • the display panel 10 further includes a plurality of compensation areas, and the plurality of sub-pixels in each compensation area are configured with the same voltage compensation coefficient.
  • the display panel 10 may be a display panel with a tri-gate structure, which can effectively reduce the number of data lines and the number of pins of the source driver, thereby reducing production costs.
  • the plurality of sub-pixels 13 include first sub-pixels, second sub-pixels, and third sub-pixels of different colors.
  • the sub-pixels 13 located in the same column are arranged in accordance with the order of the first sub-pixel, the second sub-pixel, and the third sub-pixel. The order is arranged one by one, and the colors of the sub-pixels 13 in the same row are the same. In other embodiments, there may be other sub-pixel arrangements, which are not limited here.
  • the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively a blue (B) sub-pixel, a green (G) sub-pixel, and a red (R) sub-pixel.
  • the display panel 10 is divided into six compensation areas, for example, two compensation areas N+1 and N-1 located in the middle, and two compensation areas N+1 are located in the middle. Two compensation areas N+2 at the end and two compensation areas N-2 at both ends of the compensation area N-1. Compensation areas with different numbers correspond to different voltage compensation coefficients, and compensation areas with the same number correspond to the same voltage compensation coefficients. Since the charging conditions of the sub-pixels 13 in different positions of the display panel 10 are affected by different resistance and capacitance, it is necessary to configure different compensation values for each compensation area of the display panel 10 to reduce or even eliminate the corresponding compensation area. The sub-pixel 13 is affected by the resistance and capacitance during charging.
  • the working process of the display device 100 of the present application includes: in a frame of picture, when the data signal on a data line 11 needs to switch from the gray level of the previous row to the target gray level of the current row, on the one hand, according to the preset feedback look-up table 20 , The current line target gray level and the previous line input gray level are searched to obtain the feedback gray level.
  • the previous line is searched for Drive the gray scale, and load the overdrive voltage corresponding to the overdrive gray scale to the data line; then look up the gain gray scale according to the preset gain look-up table 30 and the feedback gray scale, and compare the gain
  • the gray level is stored in the line buffer 40, and when the data line 11 performs the next gray level switching, the gain gray level is used as the input gray level of the previous line.
  • the line overdrive technology has a feedback function, so that the actual driving voltage data of the data line is stored in the line buffer, so as to avoid the line overdrive technology causing the sub-pixels of the next line to be overrun. Charging, which in turn makes the panel charging more accurate.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
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Abstract

提供了一种显示装置及其过驱动方法。该过驱动方法包括：在一帧画面内，当一条数据线上的数据信号需要从前一行灰阶切换至当前行目标灰阶时，根据预设的反馈查找表（20）、当前行目标灰阶及前一行输入灰阶查找得到反馈灰阶；根据预设的增益查找表（30）和反馈灰阶查找得到增益灰阶，并将增益灰阶存入行缓存器中。

Description

显示装置及其过驱动方法 技术领域
本申请涉及显示技术领域，尤其涉及一种显示装置及其过驱动方法。
 背景技术
随着显示装置的解析度越来越高，面板尺寸越来越大，各机种的充电时间短，面板阻容（RC）大，导致充电率问题越来越突出。现有技术提出了一种过驱动技术(over driver，OD)，以使液晶在较短的时间内达到预期偏转目标，OD技术的原理是：当一条数据线上的数据信号需要从前一行灰阶切换到当前行目标灰阶时，若是只给当前行目标灰阶的驱动电压，由于液晶翻转的反应速度慢，实际并不能达不到我们需要的当前行目标灰阶，而使用OD技术，则会提供与当前行目标灰阶对应的驱动电压的差值更大的过驱动灰阶对应的驱动电压，从而加快液晶翻转速度，以达到我们实际所需的当前行目标灰阶。
虽然现有的过驱动技术能够较好地改善灰阶跳变产生的充电不足问题，但仍存在以下缺陷：在现有的行过驱动技术中，数据线在进行灰阶跳变时，是当前行目标灰阶与上一行输入灰阶作比较，当当前行灰阶有跳变，而下一行灰阶无跳变时，会造成下一行的子像素过充。例如图1所示，绿色（G）子像素、蓝色（B）子像素、红色（R）子像素为与同一条数据线连接并沿列排列的子像素， G子像素充电时为64灰阶，即当前行目标灰阶为64灰阶，B子像素充电时为0灰阶，即前一行输入灰阶为0灰阶，R子像素充电时为64灰阶，即下一行目标灰阶为64灰阶，在对G子像素充电时，根据过驱动查找表、当前行目标灰阶以及前一行输入灰阶，查找得到当前行的过驱动灰阶为86灰阶，从而对数据线加载与86灰阶对应的过驱动电压，使得对G子像素充电的平均电压为目标电压U1；当对下一行的R子像素充电时，由于上一行灰阶和当前行目标灰阶均为64灰阶，查找得到当前行的过驱动灰阶还是为64灰阶，数据线不发生跳变，但由于寄生电容的影响，对R子像素充电的平均电压会在目标电压U1之上，会造成R子像素过充。
 技术问题
本申请实施例提供一种显示装置及其过驱动方法，以解决现有的显示装置的过驱动方法，由于当数据线进行灰阶跳变时，存在当前行灰阶有跳变，而下一行灰阶无跳变的情况，导致下一行的子像素过充，进而影响显示的技术问题。
 技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本申请实施例提供一种显示装置的过驱动方法，其中，包括以下步骤：
S10，提供一显示面板，所述显示面板包括多个阵列排布的子像素和多条数据线，每一列所述子像素对应连接有一条所述数据线；
S20，在一帧画面内，当一条数据线上的数据信号需要从前一行灰阶切换至当前行目标灰阶时，根据预设的反馈查找表、所述当前行目标灰阶及前一行输入灰阶查找得到反馈灰阶；
S30，根据预设的增益查找表和所述反馈灰阶查找得到增益灰阶，并将所述增益灰阶存入行缓存器中，当所述数据线进行下一次灰阶切换时，所述增益灰阶作为所述前一行输入灰阶使用；
所述S10还包括：将所述显示面板划分为多个补偿区域，每一所述补偿区域内的多个所述子像素配置相同的电压补偿系数。
所述S20还包括：根据预设的过驱动查找表、所述当前行目标灰阶及所述前一行输入灰阶查找得到过驱动灰阶，并向所述数据线加载与所述过驱动灰阶对应的过驱动电压。
在本发明的至少一种实施例中，所述过驱动电压的获取包括：
时序控制器从影像数据源接收到当前行目标灰阶和从所述缓存器接收到所述前一行输入灰阶；
通过所述过驱动查找表比较所述当前行目标灰阶和所述前一行输入灰阶查找得到所述过驱动灰阶；
所述时序控制器向源极驱动器输入所述数据线的驱动信号；
所述源极驱动器向所述数据线加载与所述过驱动灰阶对应的所述过驱动电压。
在本发明的至少一种实施例中，来自所述影像数据源的当前行目标灰阶分两别输入到所述时序控制器和所述反馈查找表中。
在本发明的至少一种实施例中，来自所述行缓存器中的前一行灰阶分别输入到所述时序控制器和所述反馈查找表中。
在本发明的至少一种实施例中，在所述S30中，根据所述数据线对应的所述子像素所在的补偿区域，匹配出与所述反馈灰阶对应的增益系数。
本申请实施例还提供一种显示装置的过驱动方法，包括以下步骤：
S10，提供一显示面板，所述显示面板包括多个阵列排布的子像素和多条数据线，每一列所述子像素对应连接有一条所述数据线；
S20，在一帧画面内，当一条数据线上的数据信号需要从前一行灰阶切换至当前行目标灰阶时，根据预设的反馈查找表、所述当前行目标灰阶及前一行输入灰阶查找得到反馈灰阶；
S30，根据预设的增益查找表和所述反馈灰阶查找得到增益灰阶，并将所述增益灰阶存入行缓存器中，当所述数据线进行下一次灰阶切换时，所述增益灰阶作为所述前一行输入灰阶使用。
在本发明的至少一种实施例中，所述S20还包括：
根据预设的过驱动查找表、所述当前行目标灰阶及所述前一行输入灰阶查找得到过驱动灰阶，并向所述数据线加载与所述过驱动灰阶对应的过驱动电压。
在本发明的至少一种实施例中，所述过驱动电压的获取包括：
时序控制器从影像数据源接收到当前行目标灰阶和从所述缓存器接收到所述前一行输入灰阶；
通过所述过驱动查找表比较所述当前行目标灰阶和所述前一行输入灰阶查找得到所述过驱动灰阶；
所述时序控制器向源极驱动器输入所述数据线的驱动信号；
所述源极驱动器向所述数据线加载与所述过驱动灰阶对应的所述过驱动电压。
在本发明的至少一种实施例中，来自所述影像数据源的当前行目标灰阶分两别输入到所述时序控制器和所述反馈查找表中。
在本发明的至少一种实施例中，来自所述行缓存器中的前一行灰阶分别输入到所述时序控制器和所述反馈查找表中。
在本发明的至少一种实施例中，所述S10还包括：将所述显示面板划分为多个补偿区域，每一所述补偿区域内的多个所述子像素配置相同的电压补偿系数。
在本发明的至少一种实施例中，在所述S30中，根据所述数据线对应的所述子像素所在的补偿区域，匹配出与所述反馈灰阶对应的增益系数。
本申请实施例提供一种显示装置，包括显示面板、时序控制器、与所述时序控制器连接的行缓存器、与所述行缓存器连接的反馈查找表、以及与所述反馈查找表、所述行缓存器连接的增益查找表；所述显示面板包括多个阵列排布的子像素和多条数据线，每一列所述子像素对应连接有一条所述数据线；所述行缓存器用以在一帧画面内，当一条数据线上的数据信号需要从前一行灰阶切换至当前行目标灰阶时，存储前一行输入灰阶并向所述时序控制器以及所述反馈查找表输入所述前一行输入灰阶；所述反馈查找表用以读取所述前一行输入灰阶和当前行目标灰阶，并查找得到反馈灰阶；所述增益查找表用以读取所述反馈灰阶，并查找得到增益灰阶，当所述数据线进行下一次灰阶切换时，所述增益灰阶作为所述前一行输入灰阶使用。
在本发明的至少一种实施例中，所述显示装置还包括与所述时序控制器连接的过驱动查找表、与所述时序控制器和所述显示面板连接的源极驱动器；所述过驱动查找表用以比较所述当前行目标灰阶和所述前一行输入灰阶，并查找得到过驱动灰阶。
在本发明的至少一种实施例中，所述显示面板还包括多个补偿区域，每一所述补偿区域内的多个所述子像素配置有相同的电压补偿系数。
在本发明的至少一种实施例中，所述显示装置还包括与所述时序控制器连接的栅极驱动器，所述栅极驱动器与所述显示面板连接。
在本发明的至少一种实施例中，所述显示面板还包括与所述源极驱动器连接的多条扫描线，每一行所述子像素对应连接有同一条所述扫描线。
 有益效果
通过新增设反馈查找表和增益查找表，使得行过驱动技术具有反馈功能，使得行缓存器中存入数据线的实际驱动电压数据，从而避免行过驱动技术造成下一行的子像素过充，进而使得面板充电更加精准。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，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获得其他的附图。
图1为现有技术的子像素的充电曲线示意图；
图2为本申请实施例的显示装置的结构示意图；
图3为本申请实施例的显示面板的结构示意图；
图4位本申请实施例的显示装置的过驱动方法的步骤流程图;
图5为本申请实施例的显示面板的分区示意图；
图6为本申请实施例的子像素充电曲线示意图；
图7为本申请实施例的当前行子像素充电的原理示意图；
图8为本申请实施例的下一行子像素充电的原理示意图。
 本发明的实施方式
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。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示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一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
如图2~4所示，本发明实施例提供一种显示装置100的过驱动方法，包括以下步骤：
S10，提供一显示面板10，所述显示面板10包括多个阵列排布的子像素13和多条数据线11，每一列所述子像素13对应连接有一条所述数据线11；
S20，在一帧画面内，当一条数据线11上的数据信号需要从前一行灰阶切换至当前行目标灰阶时，根据预设的反馈查找表20、所述当前行目标灰阶及前一行输入灰阶查找得到反馈灰阶；
S30，根据预设的增益查找表30和所述反馈灰阶查找得到增益灰阶，并将所述增益灰阶存入行缓存器40中，当所述数据线11进行下一次灰阶切换时，所述增益灰阶作为所述前一行输入灰阶使用。
所述S20还包括：根据预设的过驱动查找表60、所述当前行目标灰阶及所述前一行输入灰阶查找得到过驱动灰阶，并向所述数据线11加载与所述过驱动灰阶对应的过驱动电压。
所述显示装置100还包括时序控制器50和与所述时序控制器50连接的源极驱动器70，所述时序控制器50向所述源极驱动器70传递驱动信号，所述源极驱动器70向所述显示面板加载驱动电压。
所述S20具体包括：首先所述时序控制器50从影像数据源接收到当前行目标灰阶和从所述行缓存器40接收到所述前一行输入灰阶；
然后，通过所述过驱动查找表60比较所述当前行目标灰阶和所述前一行输入灰阶查找得到所述过驱动灰阶；
之后，所述时序控制器50向所述源极驱动器输入所述数据线的驱动信号；
最后，所述源极驱动器70向所述数据线11加载与所述过驱动灰阶对应的所述过驱动电压。
在一帧画面内，当一条数据线上的数据信号需要从前一行灰阶切换至当前行目标灰阶时，来自影像数据源的当前行目标灰阶分两路进行，一路输入到所述时序控制器50，另一路输入到所述反馈查找表20；来自所述行缓存器40中的前一行输入灰阶分两路进行，一路输入到所述时序控制器50，一路输入到所述反馈查找表20，从而在所述过驱动查找表60中查找过驱动灰阶时，在所述反馈查找表中查找当前行子像素13的充电状态，得到所述反馈灰阶，从而保证之后所述行缓存器40存入的灰阶为当前实际驱动电压对应的灰阶，从而避免在对下一行子像素13充电时出现过充的情况发生。
所述S10还包括：将所述显示面板10划分为多个补偿区域，每一所述补偿区域内的多个所述子像素配置相同的电压补偿系数。
如图5所示，在一些实施例中，将所述显示面板10划分为六个补偿区域，例如位于中部的两个补偿区域N+1和补偿区域N-1，位于补偿区域N+1两端的两个补偿区域N+2，位于补偿区域N-1两端的两个补偿区域N-2，不同编号的补偿区域对应不同的电压补偿系数，相同编号的补偿区域对应相同的电压补偿系数。由于所述显示面板10的不同位置的子像素13的充电情况受到的阻容影响不同，因此，需要对所述显示面板10的各个补偿区域配置不同的补偿值，降低甚至消除其相应补偿区域内的子像素13在充电时受到的阻容影响。
在所述S30中，根据所述数据线11对应的子像素13所在的补偿区域，匹配出与所述反馈灰阶对应的增益系数。
具体地，根据所述反馈灰阶、以及所述当前要充电的子像素13所在补偿区域的电压补偿系数，在所述增益查找表中查找对应的增益系数，将所述增益系数乘以所述反馈灰阶得到所述增益灰阶，将所述增益灰阶存入所述行缓存器40中，所述增益灰阶在所述数据线11进行下一次灰阶变换时作为前一行输入灰阶输入到所述时序控制器50中使用。
所述时序控制器50还与所述栅极驱动器80连接，用以向所述栅极驱动器80发送扫描信号；所述栅极驱动器80向所述显示面板10加载扫描信号。
所述显示面板10还包括多条扫描线12，每一行所述子像素13对应连接有同一条所述扫描线12。所述栅极驱动器80向扫描线12发送扫描信号，扫描线实现对子像素13的逐行扫描。
进一步地，所述显示面板10可为三栅极架构的显示面板，能够有效减少数据线的数量和源极驱动器的引脚数量，降低生产成本。多个所述子像素13包括不同颜色的第一子像素、第二子像素、以及第三子像素，位于同一列的子像素13按照第一子像素、第二子像素、第三子像素的次序依次排列，位于同一行的子像素13的颜色相同。在其他实施例中，可有其他的子像素排列方式，这里不做限制。
在本实施例中，所述第一子像素、所述第二子像素、所述第三子像素分别为蓝色（B）子像素、绿色（G）子像素、红色（R）子像素。
举例来说，如图6和图7所示，第二列的数据线11在为第二列第二行的G子像素充电时为64灰阶，即当前目标灰阶为64灰阶，上一行子像素充电时（即第二列一行的B子像素）为0灰阶，即前一行输入灰阶为0灰阶，一方面通过查找过驱动查找表60得到过驱动灰阶为86灰阶，该数据线11加载与86灰阶对应的驱动电压，使得所述数据线11对所述G子像素充电时的平均电压为目标电压U1，另一方面对当前目标灰阶进行反馈处理，即通过查找反馈查找表20得到反馈灰阶为75灰阶，再经过增益查找表30进行分区查找，得到增益灰阶为75灰阶，并将75灰阶存入行缓存器40中，作为下一次该条数据线11进行灰阶变换时的前一行输入灰阶数据使用。
如图6和图8所示，当扫描线12继续扫描第三行时，该条数据线11对第二列第三行的R子像素充电时为64灰阶，即当前行目标灰阶为64灰阶，上一行输入灰阶为73，一方面通过查找过驱动查找表60得到过驱动灰阶为58灰阶，该数据线11加载与58灰阶对应的驱动电压，使得所述数据线11对所述R子像素充电时的平均电压为目标电压U1，从而避免过充，另一方面对当前目标灰阶进行反馈处理，即通过查找反馈查找表20得到反馈灰阶为62灰阶，再经过增益查找表30进行分区查找，得到增益灰阶为63灰阶，并将63灰阶存入行缓存器40中，作为下一次该条数据线11进行灰阶变换时的前一行输入灰阶数据使用。
从图6中可以看出，通过增设反馈查找表和增益查找表，使得存入行存储器中的灰阶为实际电压对应的灰阶，能够解决数据线在对子像素充电时遇到当前灰阶有跳变，下一行灰阶无跳变时，造成下一行子像素过充的问题。
本申请还提供一种显示装置100，包括：显示面板10、时序控制器50、与所述时序控制器50连接的行缓存器40、与所述行缓存器40连接的反馈查找表20、以及与所述反馈查找表20、所述行缓存器40连接的增益查找表30。
所述显示面板10包括多个阵列排布的子像素13和多条数据线11，每一列所述子像素13对应连接有一条所述数据线11。
所述行缓存器40用以在一帧画面内，当一条数据线11上的数据信号需要从前一行灰阶切换至当前行目标灰阶时，存储前一行输入灰阶并向所述时序控制器50以及所述反馈查找表20输入所述前一行输入灰阶。
所述反馈查找表20用以读取所述前一行输入灰阶和当前行目标灰阶，并查找得到反馈灰阶。
所述增益查找表30用以读取所述反馈灰阶，并查找得到增益灰阶，当所述数据线11进行下一次灰阶切换时，所述增益灰阶作为所述前一行输入灰阶使用。
所述显示面板10还包括与所述源极驱动器连接的多条扫描线，每一行所述子像素对应连接有同一条所述扫描线。
所述显示装置100还包括与所述时序控制器50连接的过驱动查找表60、与所述时序控制器50和所述显示面板10连接的源极驱动器70、与所述时序控制器50连接的栅极驱动器80。所述显示面板还包括与所述源极驱动器70连接的多条扫描线12，每一行所述子像素13对应连接有同一条所述扫描线12，所述栅极驱动器80与所述显示面板10连接；所述过驱动查找表60用以比较所述当前行目标灰阶和所述前一行输入灰阶，并查找得到过驱动灰阶。
所述显示面板10还包括多个补偿区域，每一所述补偿区域内的多个所述子像素配置有相同的电压补偿系数。
进一步地，所述显示面板10可为三栅极架构的显示面板，能够有效减少数据线的数量和源极驱动器的引脚数量，降低生产成本。多个所述子像素13包括不同颜色的第一子像素、第二子像素、以及第三子像素，位于同一列的子像素13按照第一子像素、第二子像素、第三子像素的次序依次排列，位于同一行的子像素13的颜色相同。在其他实施例中，可有其他的子像素排列方式，这里不做限制。
在本实施例中，所述第一子像素、所述第二子像素、所述第三子像素分别为蓝色（B）子像素、绿色（G）子像素、红色（R）子像素。
如图5所示，在一些实施例中，将所述显示面板10划分为六个补偿区域，例如位于中部的两个补偿区域N+1和补偿区域N-1，位于补偿区域N+1两端的两个补偿区域N+2，位于补偿区域N-1两端的两个补偿区域N-2，不同编号的补偿区域对应不同的电压补偿系数，相同编号的补偿区域对应相同的电压补偿系数。由于所述显示面板10的不同位置的子像素13的充电情况受到的阻容影响不同，因此，需要对所述显示面板10的各个补偿区域配置不同的补偿值，降低甚至消除其相应补偿区域内的子像素13在充电时受到的阻容影响。
本申请的显示装置100的工作过程包括：在一帧画面内，当一条数据线11上的数据信号需要从前一行灰阶切换至当前行目标灰阶时，一方面根据预设的反馈查找表20、所述当前行目标灰阶及前一行输入灰阶查找得到反馈灰阶，另一方面根据预设的过驱动查找表、所述当前行目标灰阶及所述前一行输入灰阶查找得到过驱动灰阶，并向所述数据线加载与所述过驱动灰阶对应的过驱动电压；然后根据预设的增益查找表30和所述反馈灰阶查找得到增益灰阶，并将所述增益灰阶存入行缓存器40中，当所述数据线11进行下一次灰阶切换时，所述增益灰阶作为所述前一行输入灰阶使用。
本申请的显示装置100的详细工作过程可参考上述过驱动方法，这里不再赘述。
通过新增设一个反馈查找表和增益查找表，使得行过驱动技术具有反馈功能，使得行缓存器中存入数据线的实际驱动电压数据，从而避免行过驱动技术造成下一行的子像素过充，进而使得面板充电更加精准。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种显示装置及其过驱动方法进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (17)

  1. 一种显示装置的过驱动方法，其中，包括以下步骤：
    S10，提供一显示面板，所述显示面板包括多个阵列排布的子像素和多条数据线，每一列所述子像素对应连接有一条所述数据线；
    S20，在一帧画面内，当一条数据线上的数据信号需要从前一行灰阶切换至当前行目标灰阶时，根据预设的反馈查找表、所述当前行目标灰阶及前一行输入灰阶查找得到反馈灰阶；
    S30，根据预设的增益查找表和所述反馈灰阶查找得到增益灰阶，并将所述增益灰阶存入行缓存器中，当所述数据线进行下一次灰阶切换时，所述增益灰阶作为所述前一行输入灰阶使用；
    所述S10还包括：将所述显示面板划分为多个补偿区域，每一所述补偿区域内的多个所述子像素配置相同的电压补偿系数；
    所述S20还包括：根据预设的过驱动查找表、所述当前行目标灰阶及所述前一行输入灰阶查找得到过驱动灰阶，并向所述数据线加载与所述过驱动灰阶对应的过驱动电压。
  2. 根据权利要求1所述的过驱动方法，其中，所述过驱动电压的获取包括：
    时序控制器从影像数据源接收到当前行目标灰阶和从所述缓存器接收到所述前一行输入灰阶；
    通过所述过驱动查找表比较所述当前行目标灰阶和所述前一行输入灰阶查找得到所述过驱动灰阶；
    所述时序控制器向源极驱动器输入所述数据线的驱动信号；
    所述源极驱动器向所述数据线加载与所述过驱动灰阶对应的所述过驱动电压。
  3. 根据权利要求2所述的过驱动方法，其中，来自所述影像数据源的当前行目标灰阶分两别输入到所述时序控制器和所述反馈查找表中。
  4. 根据权利要求2所述的过驱动方法，其中，来自所述行缓存器中的前一行灰阶分别输入到所述时序控制器和所述反馈查找表中。
  5. 根据权利要求1所述的过驱动方法，其中，在所述S30中，根据所述数据线对应的所述子像素所在的补偿区域，匹配出与所述反馈灰阶对应的增益系数。
  6. 一种显示装置的过驱动方法，其中，包括以下步骤：
    S10，提供一显示面板，所述显示面板包括多个阵列排布的子像素和多条数据线，每一列所述子像素对应连接有一条所述数据线；
    S20，在一帧画面内，当一条数据线上的数据信号需要从前一行灰阶切换至当前行目标灰阶时，根据预设的反馈查找表、所述当前行目标灰阶及前一行输入灰阶查找得到反馈灰阶；
    S30，根据预设的增益查找表和所述反馈灰阶查找得到增益灰阶，并将所述增益灰阶存入行缓存器中，当所述数据线进行下一次灰阶切换时，所述增益灰阶作为所述前一行输入灰阶使用。
  7. 根据权利要求6所述的过驱动方法，其中，所述S20还包括：
    根据预设的过驱动查找表、所述当前行目标灰阶及所述前一行输入灰阶查找得到过驱动灰阶，并向所述数据线加载与所述过驱动灰阶对应的过驱动电压。
  8. 根据权利要求7所述的过驱动方法，其中，所述过驱动电压的获取包括：
    时序控制器从影像数据源接收到当前行目标灰阶和从所述缓存器接收到所述前一行输入灰阶；
    通过所述过驱动查找表比较所述当前行目标灰阶和所述前一行输入灰阶查找得到所述过驱动灰阶；
    所述时序控制器向源极驱动器输入所述数据线的驱动信号；
    所述源极驱动器向所述数据线加载与所述过驱动灰阶对应的所述过驱动电压。
  9. 根据权利要求8所述的过驱动方法，其中，来自所述影像数据源的当前行目标灰阶分两别输入到所述时序控制器和所述反馈查找表中。
  10. 根据权利要求8所述的过驱动方法，其中，来自所述行缓存器中的前一行灰阶分别输入到所述时序控制器和所述反馈查找表中。
  11. 根据权利要求6所述的过驱动方法，其中，所述S10还包括：将所述显示面板划分为多个补偿区域，每一所述补偿区域内的多个所述子像素配置相同的电压补偿系数。
  12. 根据权利要求11所述的过驱动方法，其中，在所述S30中，根据所述数据线对应的所述子像素所在的补偿区域，匹配出与所述反馈灰阶对应的增益系数。
  13. 一种显示装置，其包括：
    显示面板、时序控制器、与所述时序控制器连接的行缓存器、与所述行缓存器连接的反馈查找表、以及与所述反馈查找表、所述行缓存器连接的增益查找表；
    所述显示面板包括多个阵列排布的子像素和多条数据线，每一列所述子像素对应连接有一条所述数据线；
    所述行缓存器用以在一帧画面内，当一条数据线上的数据信号需要从前一行灰阶切换至当前行目标灰阶时，存储前一行输入灰阶并向所述时序控制器以及所述反馈查找表输入所述前一行输入灰阶；
    所述反馈查找表用以读取所述前一行输入灰阶和当前行目标灰阶，并查找得到反馈灰阶；
    所述增益查找表用以读取所述反馈灰阶，并查找得到增益灰阶，当所述数据线进行下一次灰阶切换时，所述增益灰阶作为所述前一行输入灰阶使用。
  14. 根据权利要求13所述的显示装置，其中，所述显示装置还包括与所述时序控制器连接的过驱动查找表、与所述时序控制器和所述显示面板连接的源极驱动器；所述过驱动查找表用以比较所述当前行目标灰阶和所述前一行输入灰阶，并查找得到过驱动灰阶。
  15. 根据权利要求13所述的显示装置，其中，所述显示面板还包括多个补偿区域，每一所述补偿区域内的多个所述子像素配置有相同的电压补偿系数。
  16. 根据权利要求13所述的显示装置，其中，所述显示装置还包括与所述时序控制器连接的栅极驱动器，所述栅极驱动器与所述显示面板连接。
  17. 根据权利要求16所述的显示装置，其中，所述显示面板还包括与所述源极驱动器连接的多条扫描线，每一行所述子像素对应连接有同一条所述扫描线。
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