WO2015013952A1 - 一种液晶面板和液晶面板的驱动方法 - Google Patents
一种液晶面板和液晶面板的驱动方法 Download PDFInfo
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- WO2015013952A1 WO2015013952A1 PCT/CN2013/080617 CN2013080617W WO2015013952A1 WO 2015013952 A1 WO2015013952 A1 WO 2015013952A1 CN 2013080617 W CN2013080617 W CN 2013080617W WO 2015013952 A1 WO2015013952 A1 WO 2015013952A1
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
-
- 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
- G09G2320/0252—Improving the response speed
-
- 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
- Liquid crystal panel and driving method of liquid crystal panel Liquid crystal panel and driving method of liquid crystal panel
- the present invention relates to the field of liquid crystal display, and more particularly to a method of driving a liquid crystal panel and a liquid crystal panel.
- the liquid crystal panel includes a plurality of thin film transistors (TFTs), and vertical and horizontal staggered data lines and scan lines; one scan line controls the gates of one row of TFTs; one data line controls the sources of one column of TFTs, and the drains of each of the TFTs are connected Pixel capacitance.
- the scan line is connected with a scan chip, and the data line is connected with a data drive module.
- the scan chip sequentially outputs a drive signal of each scan line in a progressive scan manner, and the data line outputs a data signal of the TFT corresponding to each scan line.
- the signal output from the data driving module has a lead before reaching the data line.
- the length of the traces at both ends will become longer and longer, and the impedance will become larger and larger, and the impedance will be larger. It affects the degree of delay of the data signal. The higher the impedance, the more serious the signal delay.
- the delay of the signal can cause the pixels to be not fully charged. In particular, when the pixel changes from zero gray scale to other gray scales, due to the delay, the voltage change of the pixel electrode is slow, the pixel charge amount is seriously degraded, and finally the gray scale value of the pixel is seriously affected. In the driving method of column inversion or frame inversion, a significant color shift phenomenon occurs in the two-color mixed color screen.
- the technical problem to be solved by the present invention is to provide a liquid crystal panel and a driving method of the liquid crystal panel which can improve the color shift phenomenon.
- a liquid crystal panel comprising a plurality of pixels, a cross-hatched scan line and a data line, and a data driving module for driving the data line; each pixel receives data information of the same data line, and each pixel includes three adjacent three scans Subpixels controlled by lines;
- the liquid crystal panel further includes an overvoltage driving module coupled to the data driving module, and a data analyzing module coupled to the overvoltage driving module and capable of reading the grayscale value of each subpixel, wherein the liquid crystal panel further includes the data analysis The original overvoltage driving table and the first overvoltage driving table coupled by the module; the driving voltage in the same overvoltage meter;
- the overvoltage driving module is driven according to the first overvoltage driving table.
- the next sub-pixel is driven according to the first overvoltage driving table.
- the liquid crystal panel further includes a second overvoltage driving table coupled to the data analysis module; under the same overvoltage determination condition, a partial driving voltage corresponding to the second overvoltage driving table is smaller than the original Overvoltage driving the driving voltage in the table;
- the overvoltage driving module is configured according to The two overvoltage driving table drives the next sub-pixel.
- the sub-pixel having a higher grayscale value receives a higher driving voltage, when the latter sub-pixel of the same data line is displayed, the charging amount is too high in order to avoid a higher driving voltage, and the driving voltage is lower than the original driving voltage.
- the second driving table is driven, so that the difference in the amount of charge between the adjacent two higher gray sub-pixels can be further reduced, and the color shift phenomenon is further improved.
- the second threshold is a full gray scale value of (0 ⁇ 1/4) times. At this time, the pixel voltage difference between two adjacent sub-pixels is the largest, and the technical solution of the present invention is used for compensation. The effect of Wenshan is the most obvious.
- the preset first threshold is a full gray scale value of (3/4 ⁇ 1 ) times.
- the liquid crystal panel further includes a frame buffer module, a timing control chip, and a storage module.
- the grayscale value of each of the sub-pixels is stored in the frame buffer module; the original overvoltage driving table, the first overvoltage driving table, and the second overvoltage driving table are stored in the storage module;
- the data analysis module, the overvoltage driving module and the frame buffer module are coupled to the timing control chip, the timing control chip further includes a bus control module coupled to the storage module, and a receiving module that receives the pixel display information, from the receiving module to the
- the overvoltage driving module is sequentially connected in series with a data latching module, a backlight control module, and a gamma correction module; the output end of the overvoltage driving module is also serially connected with a timing control module and a transmitting module coupled with the data driving module;
- the memory module is an EEPROM, and the bus control module is coupled to the EEPROM via an I 2 C bus.
- a driving method of a liquid crystal panel includes a plurality of pixels, a vertical and horizontal interlaced scan lines and data lines, and a data driving module for driving the data lines; each pixel receives data information of the same data line, and each pixel includes Three sub-pixels respectively controlled by three adjacent scanning lines; the liquid crystal panel includes a preset original overvoltage driving table and a first overvoltage driving table; wherein, under the same overvoltage determination condition, The partial driving voltage corresponding to the first overvoltage driving table is greater than the driving voltage of the original overvoltage driving table;
- the driving method includes:
- A The grayscale values of two adjacent sub-pixels are read from the same frame and the same data line. If the difference between the grayscale values of two adjacent sub-pixels is greater than a preset first threshold, the first overvoltage is adopted.
- the driving table drives the sub-pixels with higher grayscale values; otherwise, the original sub-voltage driving table is used to drive the two sub-pixels.
- the liquid crystal panel further includes a second overvoltage driving table; under the same overvoltage determination condition, a partial driving voltage corresponding to the second overvoltage driving table is smaller than a driving voltage of the original overvoltage driving table;
- the overvoltage driving module drives the next sub-pixel according to the second overvoltage driving table.
- a sub-pixel having a higher grayscale value receives a higher driving voltage, when the latter sub-pixel of the same data line is displayed, in order to avoid a higher driving voltage, the amount of charging thereof is too high, and the ratio is higher than the original driving.
- the second driving table with a lower voltage is driven, so that the difference in the amount of charge between the adjacent two higher gray sub-pixels can be further reduced, and the color shift phenomenon is further improved.
- the preset first threshold is a full gray scale value of (3/4 ⁇ 1 ) times; and the second threshold is a full gray scale value of (0 ⁇ 1/4 ) times.
- the preset first threshold is a full grayscale
- the liquid crystal panel further includes a frame buffering module, where the frame buffering module includes a grayscale value of each subpixel.
- a liquid crystal panel comprising a plurality of pixels, a cross-hatched scan line and a data line, and a data driving module for driving the data line; each pixel receives data information of the same data line, each pixel includes three sub-pixels; The first sub-pixel displayed by the scan line of the previous row, the second sub-pixel displayed by the current row scan line, and the third sub-pixel displayed by the scan line of the next row;
- the data driving module drives the voltage of the first sub-pixel to be the first driving voltage
- the data driving module drives the voltage of the second sub-pixel adjacent to the first sub-pixel to be the second driving Voltage
- the data driving module drives the voltage of the first sub-pixel to be the third driving voltage, and the data driving module Driving a voltage of the second sub-pixel adjacent to the first sub-pixel to be a fourth driving voltage,
- the fourth driving voltage is greater than the second driving voltage.
- the data driving module drives the voltage of the third sub-pixel adjacent to the second sub-pixel to be a fifth driving voltage
- the data driving module drives the voltage of the third sub-pixel to be the sixth driving a voltage; the sixth driving voltage is less than the fifth driving voltage.
- the partial driving voltage corresponding to the first overvoltage driving table is greater than the original overvoltage driving table; when the grayscale value of the first subpixel is low, The high voltage first overvoltage driving table drives the second sub-pixel to compensate for more power in the same time; thus reducing the power gap between the second sub-pixel and the third sub-pixel, thereby improving the color Partial.
- 1 is a schematic diagram of color shift of a conventional liquid crystal panel
- FIG. 2 is a schematic view showing the principle of a liquid crystal panel of the present invention
- FIG. 3 is a schematic diagram of the principle of a liquid crystal panel according to Embodiment 1 of the present invention.
- FIG. 4 is a schematic view showing a driving principle of a liquid crystal panel according to an embodiment of the present invention.
- FIG. 5 is a schematic view showing a driving method of a liquid crystal panel according to Embodiment 2 of the present invention.
- FIG. 6 is a schematic diagram showing driving waveforms of a liquid crystal panel according to Embodiment 2 of the present invention.
- Figure 7 is a schematic view showing the improvement of the color shift phenomenon after the driving method of the present invention.
- FIG. 8 is a schematic diagram of the principle of a liquid crystal panel according to Embodiment 3 of the present invention.
- the invention discloses a liquid crystal display device, which comprises a liquid crystal panel and a backlight module.
- the liquid crystal panel 100 includes a plurality of pixels 10, a cross-hatched scan line 20 and a data line 30, and a data driving module 40 that drives the data line 30.
- Each pixel 10 receives data information of the same data line 30,
- Each of the pixels includes three sub-pixels respectively controlled by the adjacent three scanning lines, and is respectively set as a first sub-pixel 11 driven by the upper-row scanning line 20, and the second sub-pixel 12 driven by the current row scanning line 20 is displayed.
- the third sub-pixel 13 displayed is driven by the next row of scan lines 20.
- the liquid crystal panel further includes an overvoltage driving module 51 coupled to the data driving module 40, and a data analyzing module coupled to the overvoltage driving module 51 and capable of reading the grayscale value of each subpixel, wherein the liquid crystal panel further includes The original overvoltage driving table 71 coupled with the data analysis module and the first overvoltage driving table 72; in the same overvoltage determining condition, that is, in the case where the same subpixel display gray scale is the same, the first overvoltage driving table 72 corresponding partial drive voltage is greater than The original overvoltage drives the driving voltage of the table 71.
- the overvoltage driving module 51 drives the sub-pixel with higher grayscale value according to the first overvoltage driving table. . Assuming that the grayscale value of the first sub-pixel 11 is smaller than the second sub-pixel 12, and the second sub-pixel 12 is displayed after the first sub-pixel 11, the overvoltage driving module 51 drives the second sub-pixel 12 according to the first overvoltage driving table. .
- the partial driving voltage corresponding to the first overvoltage driving table 72 is greater than the original overvoltage driving table 71; when the grayscale value of the first subpixel 11 is compared When low, the first overvoltage driving table 73 of high voltage is used to drive the second sub-pixel 12, and more power can be compensated in the same time; thus reducing the second sub-pixel 12 and the third sub-pixel 13 The power gap between them improves the color cast.
- the liquid crystal panel includes a plurality of pixels 10, vertically and horizontally interleaved scan lines 20 and data lines 30, and a data driving module 40 that drives the data lines 30.
- Each pixel 10 receives data information of the same data line 30.
- Each pixel includes three sub-pixels respectively controlled by three adjacent scan lines, and is respectively set as a first sub-pixel 11 driven by the upper scan line 20, and a second sub-pixel driven by the current row scan line 20. 12.
- the displayed third sub-pixel 13 is driven by the next row of scan lines 20.
- the liquid crystal panel further includes an overvoltage driving module 51 coupled to the data driving module 40, and a data analyzing module coupled to the overvoltage driving module 51 and capable of reading the grayscale value of each subpixel, wherein the liquid crystal panel further includes The original overvoltage driving table 71, the first overvoltage driving table 72 and the second overvoltage driving table 73 coupled by the data analysis module; in the same overvoltage determination condition, that is, in the case where the same subpixel display gray scale is the same, The partial driving voltage corresponding to the first overvoltage driving table 72 is greater than the driving voltage of the original overvoltage driving table 71; the partial driving voltage corresponding to the second overvoltage driving table 73 is smaller than the original overvoltage driving table 71 Drive Voltage.
- the liquid crystal panel further includes a frame buffer module 53 coupled to the data analysis module 52; the data analysis module 52 reads gray scale data of each sub-pixel from the frame buffer module 53, when the first sub-pixel 11 and the second sub-pixel When the grayscale difference between the pixels 12 exceeds a preset first threshold, the overvoltage driving module 51 drives the second subpixel 12 according to the first overvoltage driving table 72, and is driven according to the second overvoltage driving table 73.
- the third sub-pixel 13 coupled to the data analysis module 52; the data analysis module 52 reads gray scale data of each sub-pixel from the frame buffer module 53, when the first sub-pixel 11 and the second sub-pixel
- the overvoltage driving module 51 drives the second subpixel 12 according to the first overvoltage driving table 72, and is driven according to the second overvoltage driving table 73.
- the third sub-pixel 13 is coupled to the data analysis module 52; the data analysis module 52 reads gray scale data of each sub-pixel from the frame buffer module 53, when the first sub-pixel 11 and the second sub
- the preset first threshold is generally selected to be full gray scale, that is, the gray scale value of the first sub-pixel 11 is 0; the gray scale value of the second sub-pixel 12 is full gray scale (such as 255 or 128 gray scale), At this time, the pixel voltage difference between the first sub-pixel 11 and the second sub-pixel 12 is the largest, and the technical solution of the present invention is used for compensation. Wenshan's effect is most obvious.
- the liquid crystal panel further includes a timing control chip 50 and a storage module 60.
- the original overvoltage driving table, the first overvoltage driving table 72 and the second overvoltage driving table 73 are stored in the storage module 60;
- the analysis module 52, the overvoltage driving module 51 and the frame buffer module 53 are coupled to the timing control chip 50.
- the timing control chip 50 further includes a bus control module 80 coupled to the storage module 60, and a receiving module that accepts pixel display information.
- the data latching module 55, the backlight control module 56, and the gamma correction module 57 are serially connected in series from the receiving module 54 to the overvoltage driving module 51.
- the output terminals of the overvoltage driving module 51 are also serially connected in sequence.
- the sequence control module 58 and the transmit module 59 coupled to the data drive module 40.
- the original overvoltage driver table 71, the first overvoltage driver table 72, and the second overvoltage driver table 73 may also be stored in the timing driver chip 50, such as directly into the data analysis module 52 or the frame buffer module 53.
- the memory module 60 can be selected from an EEPROM, and the bus control module 80 is coupled to the EEPROM via an I 2 C bus.
- the invention also discloses a driving method of a liquid crystal panel, wherein the liquid crystal panel comprises a plurality of pixels 10, a vertical and horizontal interlaced scan line 20 and a data line 30, and a data driving module 40 for driving the data lines; each pixel receives data of the same data line Information, each pixel includes three sub-pixels respectively controlled by three adjacent scanning lines; the liquid crystal panel includes a preset original overvoltage driving table 71 and a first overvoltage driving table 72; Wherein, under the same overvoltage determination condition, the partial driving voltage corresponding to the first overvoltage driving table 72 is greater than the overvoltage driving of the original overvoltage driving table 71.
- the driving method includes: A: reading grayscale values of two adjacent sub-pixels from the same frame picture and the same data line, if the difference between grayscale values of two adjacent sub-pixels is greater than a preset first threshold, Then, the sub-pixel having the higher driving grayscale value of the first overvoltage driving table 72 is used.
- the liquid crystal panel further includes The second overvoltage driving table 73 coupled by the data analysis module; under the same overvoltage determination condition, the driving voltage corresponding to the second overvoltage driving table 73 is smaller than the original overvoltage driving table 72;
- the second overvoltage driving module drives the next sub-pixel according to the second overvoltage driving table 73.
- Increasing the second overvoltage driving table 73 can further reduce the difference in the amount of charge between the adjacent two higher gray sub-pixels, further improving the color shift phenomenon.
- the value range of the first threshold is a full gray scale value of (3/4 ⁇ 1 ) times; the value range of the second threshold is a full gray scale value of (0 ⁇ 1/4) times.
- the original overvoltage driving table OD0, the first overvoltage driving table OD1, and the second overvoltage driving table OD2 are preset; the partial driving voltage corresponding to the first overvoltage driving table OD1 The driving voltage of the second overvoltage driving table OD2 is smaller than the original overvoltage driving table OD0; the preset first threshold G1 and the second threshold G2 are set;
- the driving table OD1 drives the second sub-pixel 12, and if the difference G' between the grayscale value of the third sub-pixel 13 and the grayscale value of the second sub-pixel 12 is smaller than the second threshold G2, the second overvoltage driving table OD2 is adopted.
- the third sub-pixel 13 is driven; otherwise, the first sub-pixel 11 and the second sub-pixel 12 are driven by the original overvoltage driving table OD0.
- the preset first threshold G1 can be selected as a full gray scale (generally 255 or 128 gray scale), at this time first
- the pixel voltage difference between the sub-pixel 11 and the second sub-pixel 12 is the largest, and the compensation is achieved by the technical solution of the present invention, and the improvement effect is most obvious.
- the second sub-pixel 12 corresponding to the scan line of the row adopts the first overvoltage driving table OD1.
- the third sub-pixel 13 corresponding to the downstream scan line uses the second overvoltage driving table OD2. Assume that the voltage corresponding to the gray level of the second sub-pixel in the previous frame picture is G 1, and the voltage corresponding to the gray level of the next frame is G 2 .
- the current frame will use the driving voltage NG 1 of the original overvoltage driving table in the second sub-pixel, where NG 1> G 2; after adopting OD1, the driving voltage of the second sub-pixel will be raised to NG in this frame. 2, where NG 2> NG 1> G 2; after adopting OD2, the driving voltage of the third sub-pixel will be changed to NG 2 in this frame, where NG 1> NG 2' G 2, or NG 1> G 2>NG 2,.
- the liquid crystal panel generally includes a frame buffer module, and can store grayscale values of each sub-pixel in the previous frame and the current frame, so the grayscale value of each sub-pixel can be read from the frame buffer module to determine whether the first need to be enabled.
- Overvoltage drive table and second overvoltage drive table are examples of overvoltage drive table.
- the embodiment includes a liquid crystal panel.
- the liquid crystal panel includes a plurality of pixels 10, a cross-hatched scan line 20 and a data line 30, and a data driving module 40 for driving the data lines; each pixel receives data information of the same data line, and each pixel includes three sub-pixels; For the first sub-pixel 11 driven by the scan line of the previous row, the second sub-pixel 12 driven by the current row scan line is driven, and the third sub-pixel 13 of the display is driven by the next scan line;
- the data driving module 40 drives the voltage of the first sub-pixel 11 to be the first driving voltage, and the data driving module 40 drives the second sub-pixel adjacent to the first sub-pixel 11 .
- the voltage of 12 is the second driving voltage
- the data driving module 40 drives the voltage of the first sub-pixel 11 to be the third driving voltage.
- the voltage of the second sub-pixel 12 adjacent to the first sub-pixel 11 of the data driving module driver 40 is a fourth driving voltage.
- the fourth driving voltage is greater than the second driving voltage.
- the data driving module 40 drives the voltage of the third sub-pixel 13 adjacent to the second sub-pixel 12 to be a fifth driving voltage
- the data driving module 40 drives the third sub-pixel 13
- the voltage is the sixth driving voltage
- the sixth driving voltage is less than the fifth driving voltage.
- the above liquid crystal panel driving method is as follows:
- Step 1 When the liquid crystal panel displays a black screen to a full grayscale white screen, the gray scales corresponding to the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 are all taken as 128 gray scales.
- the voltage corresponding to the connected data line is measured, and ⁇ is VI (first driving voltage), V2 (second driving voltage), V3 (fifth driving voltage);
- Step 2 when the liquid crystal panel displays and then turns the screen into a black screen, and then switches to a yellow screen of full gray scale, the gray scale of the first sub-pixel 11 is 0, the second sub-pixel The gray scale corresponding to 12 and the third sub-pixel 13 is 128.
- the voltage corresponding to the connected data line is measured, assuming VI, (third driving voltage), V2' (four driving voltage) , V3' (sixth drive voltage);
- V2' is greater than V2 and V3' is less than V3, it is verified that the liquid crystal panel completely adopts the technical solution of the present invention.
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Abstract
液晶面板包括多个像素、纵横交错的扫描线和数据线、驱动数据线的数据驱动模块,与数据驱动模块耦合的过压驱动模块,与过压驱动模块耦合的、可以读取每个子像素灰阶值的数据分析模块,与数据分析模块耦合的原始过压驱动表和第一过压驱动表;每个像素接收同一条数据线的数据信息,每一个像素包括三个由相邻三条扫描线分别控制的子像素;在相同的过压判断条件下,第一过压驱动表对应的部分驱动电压大于原始过压驱动表的驱动电压;当同一帧画面、同一条数据线中后一个子像素灰阶值大于前一个子像素的灰阶值超过一预设的第一阈值时,过压驱动模块根据第一过压驱动表驱动后一个子像素。
Description
一种液晶面板和液晶面板的驱动方法
【技术领域】
本发明涉及液晶显示领域, 更具体的说, 涉及一种液晶面板和液晶面板的 驱动方法。
【背景技术】
在液晶面板包括多个薄膜晶体管(TFT ), 以及纵横交错的数据线和扫描线; 一条扫描线控制一行 TFT的闸极; 一条数据线控制一列 TFT的源极, 每个 TFT 的漏极连接有像素电容。 扫描线连接有扫描芯片, 数据线连接有数据驱动模块, 扫描芯片采用逐行扫描的方式依次输出每条扫描线的驱动信号, 数据线输出每 条扫描线对应的 TFT的数据信号。
从数据驱动模块输出的信号在到达数据线前有一段引线, 随着数据驱动模 块输出通道数的增加, 两端的走线长度会越来越长, 进而阻抗也越来越大, 阻 抗的大小会影响着数据信号的延迟程度, 阻抗越大, 信号延迟越严重。 信号的 延返会导致像素充电不饱满。 特别是像素从零灰阶变到其它灰阶时, 由于延迟, 像素电极的电压变化 4艮緩慢, 像素充电量严重下降, 最后严重影响着这个像素 的灰阶值。 列反转或者帧反转的驱动方式中, 在双色混色的画面下会出现明显 的色偏现象。
【发明内容】
本发明所要解决的技术问题是提供一种能改善色偏现象的液晶面板和液晶 面板的驱动方法。
本发明的目的是通过以下技术方案来实现的:
一种液晶面板, 包括多个像素、 纵横交错的扫描线和数据线、 驱动数据线 的数据驱动模块; 每个像素接收同一条数据线的数据信息, 每一个像素包括三 个由相邻三条扫描线分别控制的子像素;
所述液晶面板还包括与数据驱动模块耦合的过压驱动模块, 与过压驱动模 块耦合的、 可以读取每个子像素灰阶值的数据分析模块, 所述液晶面板还包括 与所述数据分析模块耦合的原始过压驱动表和第一过压驱动表; 在相同的过压 表中的驱动电压;
当同一帧画面、 同一条数据线中后一个子像素灰阶值大于前一个子像素的 灰阶值超过一预设的第一阈值时, 所述过压驱动模块根据第一过压驱动表驱动 后一个子像素。
进一步的, 所述液晶面板还包括与所述数据分析模块耦合的第二过压驱动 表; 在相同的过压判断条件下, 所述第二过压驱动表对应的部分驱动电压小于 所述原始过压驱动表中的驱动电压;
当同一帧画面、 同一条数据线中的后一个子像素灰阶值与前一个子像素的 灰阶值的灰阶差值小于一预设的第二阈值时, 所述过压驱动模块根据第二过压 驱动表驱动后一个子像素。
由于灰阶值较高的子像素接收了较高的驱动电压, 当显示同一数据线的后 一个子像素时, 为了避免较高的驱动电压导致其充电量过高, 采用比原始驱动 电压更低的第二驱动表进行驱动, 这样就可以进一步缩小相邻两个较高灰阶子 像素之间充电量的差异, 进一步改善色偏现象。
进一步的, 所述第二阈值为 (0 ~ 1/4 )倍的全灰阶值。 此时相邻两个子像素 之间的像素电压差距最大, 采用本发明技术方案进行补偿, ?文善的效果最明显。
进一步的, 所述预设的第一阈值为 (3/4 ~ 1 )倍的全灰阶值。 前一个子像素 采用第一过压驱动表驱动后, 如杲后一个子像素显示的灰阶跟其差距不大, 就 容易造成后一个子像素充电过度。 此时釆用驱动电压较低的第二驱动表驱动后 一个子像素, 有利于减少后一个子像素的充电量, 缩减两个子像素之间的电荷 差距, 进一步改善色偏。
进一步的, 所述液晶面板还包括帧緩冲模块、 时序控制芯片和存储模块,
所述每个子像素的灰阶值存储在所述帧緩冲模块中; 所述原始过压驱动表、 第 一过压驱动表和第二过压驱动表存储在所述存储模块内; 所述数据分析模块、 过压驱动模块和帧緩冲模块耦合到所述时序控制芯片, 所述时序控制芯片还包 括与存储模块耦合的总线控制模块, 接受像素显示信息的接收模块, 从接收模 块到所述过压驱动模块依次串接有数据锁存模块、 背光控制模块、 伽马校正模 块; 所述过压驱动模块的输出端还依次串接有时序控制模块和与数据驱动模块 耦合的发送模块; 所述存储模块为 EEPROM, 所述总线控制模块通过 I2C总线 跟所述 EEPROM耦合。
一种液晶面板的驱动方法, 所述液晶面板包括多个像素、 纵横交错的扫描 线和数据线、 驱动数据线的数据驱动模块; 每个像素接收同一条数据线的数据 信息, 每一个像素包括三个由相邻三条扫描线分别控制的子像素; 所述的液晶 面板包括有预设的原始过压驱动表和第一过压驱动表; 其中, 其中, 在相同的 过压判断条件下, 所述第一过压驱动表对应的部分驱动电压大于所述原始过压 驱动表的驱动电压;
所述驱动方法包括:
A: 从同一帧画面、 同一条数据线中读取相邻两个子像素的灰阶值, 如果相 邻两个子像素灰阶值的差值大于预设的第一阈值, 则采用第一过压驱动表的驱 动灰阶值较高的子像素; 否则, 采用原始过压驱动表驱动这两个子像素。
进一步的, 所述液晶面板还包括第二过压驱动表; 在相同的过压判断条件 下, 所述第二过压驱动表对应的部分驱动电压小于所述原始过压驱动表的驱动 电压;
所述步骤 A中, 当同一帧画面、 同一条数据线中的后一个子像素灰阶值与 所述驱动灰阶值较高的子像素的灰阶差值小于一预设的第二阈值时, 所述过压 驱动模块根据第二过压驱动表驱动后一个子像素。
由于灰阶值较高的子像素接收了较高的驱动电压, 当显示同一数据线的后 一个子像素时, 为了避免较高的驱动电压导致其充电量过高, 釆用比原始驱动
电压更低的第二驱动表进行驱动, 这样就可以进一步缩小相邻两个较高灰阶子 像素之间充电量的差异, 进一步改善色偏现象。
进一步的, 所述预设的第一阈值为 (3/4 ~ 1 )倍的全灰阶值; 所述第二阈值 为 (0 ~ 1/4 )倍的全灰阶值。
进一步的, 所述预设的第一阈值为全灰阶, 所述液晶面板还包括帧緩冲模 块, 所述帧緩冲模块包括每个子像素的灰阶值。
一种液晶面板, 包括多个像素、 纵横交错的扫描线和数据线、 驱动数据线 的数据驱动模块; 每个像素接收同一条数据线的数据信息, 每一个像素包括三 个子像素; 分别为由上一行扫描线驱动显示的第一子像素, 由当前行扫描线驱 动显示的第二子像素, 由下一行扫描线驱动显示的第三子像素;
当液晶面板显示全灰阶的白画面时, 数据驱动模块驱动第一子像素的电压 为第一驱动电压, 数据驱动模块驱动与第一子像素相邻的第二子像素的电压为 第二驱动电压,
当液晶面板从全灰阶的白画面切换到第一子像素为零灰阶, 第二子像素为 全灰阶时, 数据驱动模块驱动第一子像素的电压为第三驱动电压, 数据驱动模 块驱动与第一子像素相邻的第二子像素的电压为第四驱动电压,
所述第四驱动电压大于所述第二驱动电压。
进一步的, 当液晶面板显示全灰阶的白画面时, 数据驱动模块驱动与第二 子像素相邻的第三子像素的电压为第五驱动电压;
当液晶面板从全灰阶的白画面切换到第一子像素为零灰阶, 第二子像素和 第三子像素为全灰阶时, 数据驱动模块驱动第三子像素的电压为第六驱动电压; 所述第六驱动电压小于所述第五驱动电压。
经研究, 当第一子像素的灰阶值较低时, 由于数据线的信号延迟, 第二子 像素的像素电压爬升緩慢, 出现较明显的充电不足, 而由于第二子像素电压较 高, 第三子像素电压往往受到影响较少, 数据线电压变化很少, 致使其电量较 之第二子像素来说更为充足,往往导致混色画面下出现色偏现象(如图 1所示)。
本发明由于增加了第一过压驱动表, 在相同驱动条件下, 第一过压驱动表对应 的部分驱动电压大于原始过压驱动表; 当第一子像素的灰阶值较低时, 采用高 电压的第一过压驱动表来驱动第二子像素, 在相同时间内可以补偿更多的电量; 这样就减小了第二子像素和第三子像素之间的电量差距, 从而改善色偏。
【附图说明】
图 1是现有的液晶面板的色偏示意图;
图 2是本发明液晶面板的原理示意图;
图 3是本发明实施例一的液晶面板的原理示意图;
图 4是本发明实施例一液晶面板的驱动原理示意图;
图 5是本发明实施例二液晶面板的驱动方法示意图;
图 6是本发明实施例二液晶面板的驱动波形示意图;
图 7是采用本发明驱动方法后色偏现象改善示意图;
图 8是本发明实施例三液晶面板的原理示意图。
【具体实施方式】
本发明公开一种液晶显示装置, 包括液晶面板和背光模组。 如图 2所示, 液 晶面板 100包括多个像素 10、 纵横交错的扫描线 20和数据线 30、 驱动数据线 30的数据驱动模块 40; 每个像素 10接收同一条数据线 30的数据信息, 每一个 像素包括三个由相邻三条扫描线分别控制的子像素, 分别设为由上一行扫描线 20驱动显示的第一子像素 11 , 由当前行扫描线 20驱动显示的第二子像素 12, 由下一行扫描线 20驱动显示的第三子像素 13。所述液晶面板还包括与数据驱动 模块 40耦合的过压驱动模块 51 , 与过压驱动模块 51耦合的、 可以读取每个子 像素灰阶值的数据分析模块, 所述液晶面板还包括与所述数据分析模块耦合的 原始过压驱动表 71和第一过压驱动表 72; 在相同的过压判断条件, 即在同一子 像素显示灰阶相同的情况下, 所述第一过压驱动表 72对应的部分驱动电压大于
所述原始过压驱动表 71的驱动电压。
当同一帧画面、 同一条数据线中相邻两个子像素灰阶值的差值大于预设的第 一阈值, 过压驱动模块 51根据第一过压驱动表驱动灰阶值较高的子像素。 假设 第一子像素 11的灰阶值小于第二子像素 12, 且第二子像素 12在第一子像素 11 后显示, 过压驱动模块 51根据第一过压驱动表驱动第二子像素 12。
经研究, 当第一子像素 11的灰阶值较低时, 由于延迟, 第二子像素 12的像 素电压爬升緩慢, 出现严重充电不足, 但第三子像素的像素电压由于极性与前 行相同, 数据线的电压变化很少, 致使其电量很充足, 最后导致混色画面下出 现色偏现象。 本发明由于增加了第一过压驱动表 72, 在相同驱动条件下, 第一 过压驱动表 72对应的部分驱动电压大于原始过压驱动表 71; 当第一子像素 11 的灰阶值较低时, 采用高电压的第一过压驱动表 73来驱动第二子像素 12, 在相 同时间内可以补偿更多的电量; 这样就減小了第二子像素 12 和第三子像素 13 之间的电量差距, 从而改善色偏。
下面结合具体实施方式对本发明构思做进一步的阐述。
实施例一
如图 3、 4所示, 液晶面板包括多个像素 10、 纵横交错的扫描线 20和数据线 30、驱动数据线 30的数据驱动模块 40; 每个像素 10接收同一条数据线 30的数 据信息, 每一个像素包括三个由相邻三条扫描线分别控制的子像素, 分别设为 由上一行扫描线 20驱动显示的第一子像素 11 , 由当前行扫描线 20驱动显示的 第二子像素 12, 由下一行扫描线 20驱动显示的第三子像素 13。 所述液晶面板 还包括与数据驱动模块 40耦合的过压驱动模块 51 ,与过压驱动模块 51耦合的、 可以读取每个子像素灰阶值的数据分析模块, 所述液晶面板还包括与所述数据 分析模块耦合的原始过压驱动表 71、 第一过压驱动表 72和第二过压驱动表 73; 在相同的过压判断条件, 即在同一子像素显示灰阶相同的情况下, 所述第一过 压驱动表 72对应的部分驱动电压大于所述原始过压驱动表 71的驱动电压; 所 述第二过压驱动表 73对应的部分驱动电压小于所述原始过压驱动表 71 的驱动
电压。
所述液晶面板还包括与数据分析模块 52耦合的帧緩沖模块 53; 所述数据分 析模块 52从帧緩冲模块 53读取每个子像素的灰阶数据, 当第一子像素 11和第 二子像素 12之间的灰阶差值超过预设的第一阈值时, 所述过压驱动模块 51根 据第一过压驱动表 72驱动第二子像素 12, 并根据第二过压驱动表 73驱动第三 子像素 13。
所述预设的第一阈值一般选择为全灰阶, 即第一子像素 11的灰阶值为 0; 第 二子像素 12的灰阶值为全灰阶(如 255或 128灰阶 ), 此时第一子像素 11跟第 二子像素 12之间的像素电压差距最大, 采用本发明技术方案进行补偿, ?文善的 效果最明显。
所述液晶面板还包括时序控制芯片 50和存储模块 60,所述原始过压驱动表、 第一过压驱动表 72和第二过压驱动表 73存储在所述存储模块 60内; 所述数据 分析模块 52、 过压驱动模块 51和帧緩冲模块 53耦合到所述时序控制芯片 50, 所述时序控制芯片 50还包括与存储模块 60耦合的总线控制模块 80, 接受像素 显示信息的接收模块 54, 从接收模块 54到所述过压驱动模块 51依次串接有数 据锁存模块 55、 背光控制模块 56、 伽马校正模块 57; 所述过压驱动模块 51的 输出端还依次串接有时序控制模块 58和与数据驱动模块 40耦合的发送模块 59。 当然, 原始过压驱动表 71、 第一过压驱动表 72和第二过压驱动表 73也可以存 储到时序驱动芯片 50中,比如直接存储到数据分析模块 52或帧緩沖模块 53中。
存储模块 60 可以选用 EEPROM, 总线控制模块 80 通过 I2C 总线跟所述 EEPROM耦合。
实施例二
本发明还公开一种液晶面板的驱动方法, 液晶面板包括多个像素 10、 纵横交 错的扫描线 20和数据线 30、 驱动数据线的数据驱动模块 40; 每个像素接收同 一条数据线的数据信息, 每一个像素包括三个由相邻三条扫描线分别控制的子 像素; 所述的液晶面板包括有预设的原始过压驱动表 71和第一过压驱动表 72;
其中, 在相同的过压判断条件下, 所述第一过压驱动表 72对应的部分驱动电压 大于所述原始过压驱动表 71的过压驱动。
所述驱动方法包括: A: 从同一帧画面、 同一条数据线中读取相邻两个子像 素的灰阶值, 如果相邻两个子像素灰阶值的差值大于预设的第一阈值, 则采用 第一过压驱动表 72的驱动灰阶值较高的子像素。
由于灰阶值较高的子像素接收了较高的驱动电压, 当显示同一数据线的后一 个子像素时, 为了避免较高的驱动电压导致其充电量过高, 所述液晶面板还包 括与所述数据分析模块耦合的第二过压驱动表 73; 在相同的过压判断条件下, 所述第二过压驱动表 73对应的驱动电压小于所述原始过压驱动表 72;
此时, 所述步骤 A中, 当同一帧画面、 同一条数据线中的后一个子像素灰阶 值与所述驱动灰阶值较高的子像素的灰阶差值小于一预设的第二阈值时, 所述 过压驱动模块根据第二过压驱动表 73驱动后一个子像素。
增加第二过压驱动表 73 可以进一步缩小相邻两个较高灰阶子像素之间充电 量的差异, 进一步改善色偏现象。
优选的, 第一阈值的取值区间为 (3/4 ~ 1 )倍的全灰阶值; 所述第二阈值的 取值区间为 ( 0 ~ 1/4 )倍的全灰阶值。
具体来说, 如图 5所示, 先预设原始过压驱动表 OD0、 第一过压驱动表 OD1 和第二过压驱动表 OD2; 所述第一过压驱动表 OD1对应的部分驱动电压大于所 述原始过压驱动表 OD0 , 所述第二过压驱动表 OD2对应的驱动电压小于所述原 始过压驱动表 OD0; 设置预设的第一阈值 G1和第二阈值 G2;
读取第一子像素 11的灰阶值,如果第一子像素 11的灰阶值和第二子像素 12 的灰阶值的差值 G小于或等于预设的阈值 G1; 采用第一过压驱动表 OD1驱动 第二子像素 12, 如果第三子像素 13的灰阶值与第二子像素 12的灰阶值的差值 G' 小于第二阈值 G2, 则采用第二过压驱动表 OD2驱动第三子像素 13; 否则, 采用原始过压驱动表 OD0驱动第一子像素 11和第二子像素 12。
预设的第一阈值 G1可以选择为全灰阶(一般为 255或 128灰阶), 此时第一
子像素 11跟第二子像素 12之间的像素电压差距最大, 采用本发明技术方案进 行补偿, 改善的效果最明显。
如图 6所示, 如果上一行扫描线对应的第一子像素 11 的灰阶值很低, 假设 为 0 , 那么本行扫描线对应的第二子像素 12采用第一过压驱动表 OD1 , 下行扫 描线对应的第三子像素 13采用第二过压驱动表 OD2。假设前一帧画面中第二子 像素灰阶对应的电压为 G 1, 下一帧灰阶对应的电压为 G 2。 正常情况下, 当前 帧会在第二子像素采用原始过压驱动表的驱动电压 NG 1, 其中 NG 1> G 2; 采 用 OD1后,会在本帧将第二子像素的驱动电压提高至 NG 2,其中 NG 2> NG 1> G 2; 采用 OD2后, 会在本帧将第三子像素的驱动电压改为 NG 2,, 其中 NG 1> NG 2' G 2, 亦或 NG 1> G 2>NG 2,。
这样, 在列反转或者帧反转的驱动方式中, 在双色混色的画面下, 如图 7所 示, 如果第一子像素显示为 0灰阶, 由于第二子像素采用比较高的电压, 其电 压爬升比较快, 充电得到 4艮好地补偿, 又由于第三子像素电压采用比较低的电 压, 这两行的充电量就得到了很好的平衡, 色偏现象也得到了有效的解决。
液晶面板一般都包括帧緩冲模块, 可以存储上一帧和当前帧中每个子像素的 灰阶值 , 因此可以从帧緩冲模块读取每个子像素的灰阶值来判断是否需要启用 第一过压驱动表和第二过压驱动表。
实施例三
如图 8所示, 本实施方式包括一种液晶面板。 该液晶面板包括多个像素 10、 纵横交错的扫描线 20和数据线 30、 驱动数据线的数据驱动模块 40; 每个像素 接收同一条数据线的数据信息, 每一个像素包括三个子像素; 分别为由上一行 扫描线驱动显示的第一子像素 11 , 由当前行扫描线驱动显示的第二子像素 12, 由下一行扫描线驱动显示的第三子像素 13;
其中, 当液晶面板显示全灰阶的白画面时, 数据驱动模块 40驱动第一子像 素 11的电压为第一驱动电压, 数据驱动模块 40驱动与第一子像素 11相邻的第 二子像素 12的电压为第二驱动电压,
当液晶面板从全灰阶的白画面切换到第一子像素 11 为零灰阶, 第二子像素 12为全灰阶时, 数据驱动模块 40驱动第一子像素 11的电压为第三驱动电压, 数据驱动模块驱动 40与第一子像素 11相邻的第二子像素 12的电压为第四驱动 电压,
所述第四驱动电压大于所述第二驱动电压。
进一步的, 当液晶面板显示全灰阶的白画面时, 数据驱动模块 40驱动与第 二子像素 12相邻的第三子像素 13的电压为第五驱动电压;
当液晶面板从全灰阶的白画面切换到第一子像素 11 为零灰阶, 第二子像素 12和第三子像素 13为全灰阶时,数据驱动模块 40驱动第三子像素 13的电压为 第六驱动电压;
所述第六驱动电压小于所述第五驱动电压。
对应的, 上述液晶面板驱动方法如下:
步驟 1、 当液晶面板显示从黑画面切换至全灰阶白画面,此时第一子像素 11、 第二子像素 12、 第三子像素 13对应的灰阶都以 128灰阶为例。 当第一子像素 11、 第二子像素 12、 第三子像素 13依次显示时, 测量其连接的数据线对应的电 压, 殳为 VI (第一驱动电压)、 V2 (第二驱动电压)、 V3 (第五驱动电压); 步骤 2、 当液晶面板显示再将画面转为黑画面, 然后再切换成全灰阶的黄色 画面, 此时第一子像素 11的灰阶为 0、 第二子像素 12和第三子像素 13对应的 灰阶都是 128。 当第一子像素 11、 第二子像素 12、 第三子像素 13依次显示时, 测量其连接的数据线对应的电压, 假设为 VI, ( 第三驱动电压)、 V2' ( 四驱动 电压)、 V3' ( 第六驱动电压);
如果 V2'大于 V2, 同时 V3'小于 V3, 则验证了该液晶面板完全采用了本发 明的技术方案。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明, 不能 认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通技 术人员来说, 在不脱离本发明构思的前提下, 还可以做出若千筒单推演或替换,
都应当视为属于本发明的保护范围。
Claims
1.一种液晶面板, 包括多个像素、 纵横交错的扫描线和数据线、 驱动数据 线的数据驱动模块; 每个像素接收同一条数据线的数据信息, 每一个像素包括 三个由相邻三条扫描线分别控制的子像素;
所述液晶面板还包括与数据驱动模块耦合的过压驱动模块, 与过压驱动模 块耦合的、 可以读取每个子像素灰阶值的数据分析模块, 所述液晶面板还包括 与所述数据分析模块耦合的原始过压驱动表和第一过压驱动表; 在相同的过压 判断条件下, 所述第一过压驱动表对应的部分驱动电压大于所述原始过压驱动 表中的驱动电压;
当同一帧画面、 同一条数据线中后一个子像素灰阶值大于前一个子像素的 灰阶值超过一预设的第一阈值时, 所述过压驱动模块根据第一过压驱动表驱动 后一个子像素。
2. 如权利要求 1所述的一种液晶面板,其中,所述预设的第一阈值为( 3/4 ~ 1 )倍的全灰阶值。
3. 如权利要求 2所述的一种液晶面板, 其中, 所述液晶面板还包括帧緩冲 模块、 时序控制芯片和存储模块, 所述每个子像素的灰阶值存储在所述帧緩冲 模块中; 所述原始过压驱动表、 第一过压驱动表和第二过压驱动表存储在所述 存储模块内; 所述数据分析模块、 过压驱动模块和帧緩沖模块耦合到所述时序 控制芯片, 所述时序控制芯片还包括与存储模块耦合的总线控制模块, 接受像 素显示信息的接收模块, 从接收模块到所述过压驱动模块依次串接有数据锁存 模块、 背光控制模块、 伽马校正模块; 所述过压驱动模块的输出端还依次串接 有时序控制模块和与数据驱动模块耦合的发送模块;所述存储模块为 EEPROM, 所述总线控制模块通过 I2C总线跟所述 EEPROM耦合。
4. 如权利要求 1所述的一种液晶面板, 其中, 所述液晶面板还包括与所述 数据分析模块耦合的第二过压驱动表; 在相同的过压判断条件下, 所述第二过
压驱动表对应的部分驱动电压小于所述原始过压驱动表中的驱动电压; 当同一帧画面、 同一条数据线中的后一个子像素灰阶值与前一个子像素的 灰阶值的灰阶差值小于一预设的第二阈值时, 所述过压驱动模块根据第二过压 驱动表驱动后一个子像素。
5. 如权利要求 4所述的一种液晶面板,其中,所述预设的第一阈值为( 3/4 ~ 1 )倍的全灰阶值。
6. 如权利要求 5所述的一种液晶面板, 其中, 所述液晶面板还包括帧緩冲 模块、 时序控制芯片和存储模块, 所述每个子像素的灰阶值存储在所述帧緩冲 模块中; 所述原始过压驱动表、 第一过压驱动表和第二过压驱动表存储在所述 存储模块内; 所述数据分析模块、 过压驱动模块和帧緩冲模块耦合到所述时序 控制芯片, 所述时序控制芯片还包括与存储模块耦合的总线控制模块, 接受像 素显示信息的接收模块, 从接收模块到所述过压驱动模块依次串接有数据锁存 模块、 背光控制模块、 伽马校正模块; 所述过压驱动模块的输出端还依次串接 有时序控制模块和与数据驱动模块耦合的发送模块;所述存储模块为 EEPROM, 所述总线控制模块通过 I2C总线跟所述 EEPROM耦合。
7. 如权利要求 4所述的一种液晶面板, 其中, 所述第二阈值为 (0 ~ 1/4 ) 倍的全灰阶值。
8. 如权利要求 7所述的一种液晶面板,其中,所述预设的第一阈值为( 3/4 ~ 1 )倍的全灰阶值。
9. 如权利要求 8所述的一种液晶面板, 其中, 所述液晶面板还包括帧緩冲 模块、 时序控制芯片和存储模块, 所述每个子像素的灰阶值存储在所述帧緩冲 模块中; 所述原始过压驱动表、 第一过压驱动表和第二过压驱动表存储在所述 存储模块内; 所述数据分析模块、 过压驱动模块和帧緩冲模块耦合到所述时序 控制芯片, 所述时序控制芯片还包括与存储模块耦合的总线控制模块, 接受像 素显示信息的接收模块, 从接收模块到所述过压驱动模块依次串接有数据锁存 模块、 背光控制模块、 伽马校正模块; 所述过压驱动模块的输出端还依次串接
有时序控制模块和与数据驱动模块耦合的发送模块;所述存储模块为 EEPROM, 所述总线控制模块通过 I2C总线跟所述 EEPROM耦合。
10. 一种液晶面板的驱动方法, 所述液晶面板包括多个像素、 纵横交错的扫 描线和数据线、 驱动数据线的数据驱动模块; 每个像素接收同一条数据线的数 据信息, 每一个像素包括三个由相邻三条扫描线分别控制的子像素; 所述的液 晶面板包括有预设的原始过压驱动表和第一过压驱动表; 其中, 其中, 在相同 的过压判断条件下, 所述第一过压驱动表对应的部分驱动电压大于所述原始过 压驱动表的驱动电压;
所述驱动方法包括:
A: 从同一帧画面、 同一条数据线中读取相邻两个子像素的灰阶值, 如果相 邻两个子像素灰阶值的差值大于预设的第一阈值, 则采用第一过压驱动表的驱 动灰阶值较高的子像素。
11. 如权利要求 10所述的一种液晶面板的驱动方法, 其中, 所述液晶面板 还包括第二过压驱动表; 在相同的过压判断条件下, 所述第二过压驱动表对应 的部分驱动电压小于所述原始过压驱动表的驱动电压;
所述步骤 A中, 当同一帧画面、 同一条数据线中的后一个子像素灰阶值与 所述驱动灰阶值较高的子像素的灰阶差值小于一预设的第二阈值时, 所述过压 驱动模块根据第二过压驱动表驱动后一个子像素。
12. 如权利要求 10所述的一种液晶面板的驱动方法, 其中, 所述预设的第 一阈值为 ( 3/4 ~ 1 )倍的全灰阶值。
13. 如权利要求 11所述的一种液晶面板的驱动方法, 其中, 所述第二阈值 为 (0 ~ 1/4 )倍的全灰阶值。
14.一种液晶面板, 包括多个像素、 纵横交错的扫描线和数据线、 驱动数据 线的数据驱动模块; 每个像素接收同一条数据线的数据信息, 每一个像素包括 三个子像素; 分别为由上一行扫描线驱动显示的第一子像素, 由当前行扫描线 驱动显示的第二子像素, 由下一行扫描线驱动显示的第三子像素;
当液晶面板显示全灰阶的白画面时, 数据驱动模块驱动第一子像素的电压 为第一驱动电压, 数据驱动模块驱动与第一子像素相邻的第二子像素的电压为 第二驱动电压,
当液晶面板从全灰阶的白画面切换到第一子像素为零灰阶, 第二子像素为 全灰阶时, 数据驱动模块驱动第一子像素的电压为第三驱动电压, 数据驱动模 块驱动与第一子像素相邻的第二子像素的电压为第四驱动电压,
所述第四驱动电压大于所述第二驱动电压。
15. 如权利要求 14所述的一种液晶面板, 其中, 当液晶面板显示全灰阶的 白画面时, 数据驱动模块驱动与第二子像素相邻的第三子像素的电压为第五驱 动电压;
当液晶面板从全灰阶的白画面切换到第一子像素为零灰阶, 第二子像素和 第三子像素为全灰阶时, 数据驱动模块驱动第三子像素的电压为第六驱动电压; 所述第六驱动电压小于所述第五驱动电压。
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| CN105139814B (zh) * | 2015-06-05 | 2017-10-17 | 深圳创维-Rgb电子有限公司 | 液晶显示器及其显示方法 |
| CN110503909A (zh) * | 2018-05-18 | 2019-11-26 | 奇景光电股份有限公司 | 时序控制器与显示面板驱动器的温度管理方法 |
| US11011095B2 (en) | 2018-08-31 | 2021-05-18 | Chongqing Hkc Optoelectronics Technology Co., Ltd. | Display panel, and image control device and method thereof |
| CN109064962A (zh) * | 2018-08-31 | 2018-12-21 | 重庆惠科金渝光电科技有限公司 | 一种显示面板及其图像控制装置和方法 |
| CN109410863B (zh) * | 2018-11-29 | 2020-03-27 | 深圳市华星光电半导体显示技术有限公司 | 液晶面板驱动方法 |
| CN112735347A (zh) | 2020-12-30 | 2021-04-30 | Tcl华星光电技术有限公司 | 过压补偿方法、装置、显示面板及存储介质 |
| CN113035149B (zh) * | 2021-03-23 | 2022-01-07 | 惠科股份有限公司 | 一种显示面板的驱动方法、驱动装置及显示装置 |
| CN113299214B (zh) * | 2021-06-28 | 2022-09-02 | 昆山工研院新型平板显示技术中心有限公司 | 显示面板自动检测装置及显示面板的色偏检测方法 |
| CN115691373B (zh) | 2021-07-30 | 2026-01-16 | 武汉京东方光电科技有限公司 | 显示面板的驱动方法、显示面板及显示装置 |
| CN113724664B (zh) | 2021-08-26 | 2022-09-09 | Tcl华星光电技术有限公司 | 显示面板及其控制方法 |
| CN113674674A (zh) * | 2021-08-30 | 2021-11-19 | 武汉京东方光电科技有限公司 | 源极驱动电路、显示装置和驱动方法 |
| CN117496909B (zh) * | 2023-03-17 | 2026-01-02 | 惠州华星光电显示有限公司 | 显示面板及其驱动方法、电子装置 |
| CN116092439B (zh) * | 2023-04-10 | 2023-06-23 | 惠科股份有限公司 | 液晶显示装置及电子设备 |
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