WO2013170591A1 - 一种液晶显示面板的驱动方法、装置和液晶显示器 - Google Patents

一种液晶显示面板的驱动方法、装置和液晶显示器 Download PDF

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Publication number
WO2013170591A1
WO2013170591A1 PCT/CN2012/084169 CN2012084169W WO2013170591A1 WO 2013170591 A1 WO2013170591 A1 WO 2013170591A1 CN 2012084169 W CN2012084169 W CN 2012084169W WO 2013170591 A1 WO2013170591 A1 WO 2013170591A1
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Prior art keywords
pixel
voltage
liquid crystal
crystal display
data line
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PCT/CN2012/084169
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English (en)
French (fr)
Inventor
刘晓鹏
尹傛俊
张言萍
李恒滨
黄姗姗
Original Assignee
京东方科技集团股份有限公司
合肥京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US14/128,062 priority Critical patent/US9171519B2/en
Publication of WO2013170591A1 publication Critical patent/WO2013170591A1/zh

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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
    • G09G3/34—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
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • 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
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a method, device, and liquid crystal display for driving a liquid crystal display panel. Background technique
  • the liquid crystal display of the prior art includes a liquid crystal display panel, a source driving unit and a gate driving unit, wherein the gate driving unit is configured to gate the corresponding pixels of the liquid crystal display panel according to the image to be displayed, and the source driving unit is used for
  • the received display data of the image to be displayed is converted into a data voltage, and the data voltage is loaded on the corresponding pixel on the liquid crystal display panel through the data line to display a corresponding picture.
  • the source driving unit transmits the converted data voltage to the data line of the liquid crystal display panel according to the display data of the image to be displayed, and charges and discharges the corresponding pixel electrode.
  • the voltage sent to the data line by the source driving unit has a certain rising edge or falling edge, thereby shortening the charging time of the pixel electrode, thereby making the pixel electrode unable to reach the corresponding gray level brightness, affecting the display quality of the liquid crystal display.
  • Embodiments of the present invention provide a driving method and apparatus for a liquid crystal display panel capable of reducing charging and discharging time of a pixel electrode.
  • the embodiment of the present invention further provides a liquid crystal display comprising the driving device of the liquid crystal display panel, which can improve the display quality of the liquid crystal display.
  • a driving method of a liquid crystal display panel comprising:
  • the voltage of the compensated data line is input to the data line, and the liquid crystal display panel is driven for display.
  • a driving device for a liquid crystal display panel comprising: a gate driving unit and a source driving unit, the device further comprising: a compensation unit;
  • the compensation unit is configured to compensate a voltage of the data line according to a pixel value of each pixel on the liquid crystal display panel corresponding to the image to be displayed;
  • the source driving unit is configured to input a voltage of the data line compensated by the compensation unit to the data line, and drive the liquid crystal display panel to display.
  • a liquid crystal display comprising the driving device of the above liquid crystal display panel.
  • the embodiment of the present invention provides a driving method and device for a liquid crystal display panel, and a liquid crystal display.
  • the driving method includes: compensating for a voltage of a data line according to a pixel value of each pixel on the liquid crystal display panel corresponding to the image to be displayed, Inputting the compensated data voltage to the liquid crystal display panel, driving the liquid crystal panel to display an image to be displayed, so that the charging time of the pixel is shortened due to compensation of the voltage of the data line, thereby improving the liquid crystal display The quality of the display.
  • FIG. 1 is a schematic flow chart of a driving method of a liquid crystal display panel according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a theoretical voltage sent by a source driving unit to a data line
  • Figure 2 is a schematic diagram of the actual voltage that the source driving unit sends to the data line
  • FIG. 3 is a schematic diagram of a liquid crystal display panel with a pixel structure of an HSD architecture
  • Figure 4 is a schematic diagram of the theoretical, actual and compensated voltage timing of the data line of the liquid crystal display panel of the HSD architecture using the two-wire four-point flip drive technology;
  • FIG. 5 is a schematic structural diagram of a driving device of a liquid crystal display panel according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a liquid crystal display according to an embodiment of the present invention. detailed description
  • an embodiment of the present invention provides a driving method of a liquid crystal display panel, including: in step 101, performing voltage on a data line according to a pixel value of each pixel on a liquid crystal display panel corresponding to an image to be displayed. make up.
  • step 102 the voltage of the compensated data line is input to the data line, and the liquid crystal display panel is driven to display.
  • the display mode of the liquid crystal display is maintained, that is, the liquid crystal display maintains a certain picture at a certain time.
  • the liquid crystal display includes a driving device of the liquid crystal display panel and a liquid crystal display panel, and the driving device supplies a corresponding voltage to the data line of each pixel according to the pixel value of each pixel corresponding to the image to be displayed, thereby driving the liquid crystal display panel.
  • the liquid crystal is rotated for display.
  • the corresponding pixel values in a to-be-displayed image of a certain pixel A at time T1, T2, and ⁇ 3 are respectively 30, 220, 100, so that the theory of the pixel ⁇ on the data line corresponding to the time T1, T2, and T3
  • the voltage diagram is shown in Figure 2A.
  • the actual voltage input to the data line by the driver usually has a certain rising or falling edge, as shown in Figure 2B.
  • the voltage of the data line of the pixel A reaches a theoretical voltage corresponding to the pixel value, and there is a certain delay, thereby causing the pixel A to be charged slowly, so that the display of the liquid crystal display panel is caused.
  • the problem of non-uniformity of the picture is the technical solution proposed in the prior art for the problem that the voltage of the data line has a certain rising edge or falling edge causing slow charging of the pixel.
  • the driving method of the liquid crystal display panel provided by the embodiment can compensate the voltage of the data line in real time in advance, so that the time of the rising edge or the falling edge of the voltage of the data line is shortened, thereby shortening the pixel on the liquid crystal display panel. Charging time, improve the display quality of the liquid crystal display panel.
  • the pixel structure of the liquid crystal display panel is an HSD (Half Source Driving) architecture.
  • the HSD architecture refers to an architecture in which the scan line doubles the data line by half compared with the conventional liquid crystal display panel, that is, the adjacent two columns of pixels of the liquid crystal display panel of the HSD architecture share the same data line.
  • the data line S01 is The pixels of the P1 column and the P2 column are shared
  • the data line S02 is shared by the pixels of the P3 column and the P4 column
  • the data line S03 is shared by the pixels of the P5 column and the P6 column
  • S04 is shared by the pixels of the P7 column and the P8 column.
  • the pixels of the interval column share the same scan line, so that the pixels of the same row need to set two scan lines.
  • the pixels in the first row of pixels of P1, P3, P5, and P7 share the G01 scan line, P2, P4.
  • P6 and P8 columns in the first row of pixels share the G02 scan line.
  • the liquid crystal display panel includes n scan lines (G01, G02...Gn) and m data lines (S01, S02...Sn).
  • n scan lines G01, G02...Gn
  • S01, S02...Sn m data lines
  • the liquid crystal display panel of the HSD architecture can adopt a two-wire four-dot inversion driving method, and a timing chart of signals of the scanning line and the data line of the driving method, as shown in FIG. 4, for example, for Bl, B2, B3, and B4.
  • a timing chart of signals of the scanning line and the data line of the driving method as shown in FIG. 4, for example, for Bl, B2, B3, and B4.
  • the driving method of the liquid crystal display panel provided by the embodiment of the present invention can compensate the voltage of the data line of the pixel with the rising edge or the falling edge of the voltage of the data line in real time, see the pair of S01 data lines in FIG.
  • the voltage timing diagram S01' after real-time compensation of the voltage can reduce the problem of uneven display of the liquid crystal display, wherein S01" is a schematic diagram of the theoretical voltage timing on the data line S01.
  • a set of compensation voltages is preset in the liquid crystal display, and the compensation voltage set is a set of voltage compensation values of data lines corresponding to different pixel values of each pixel on the liquid crystal display panel.
  • compensating for the voltage of the data line according to the pixel value of each pixel on the liquid crystal display panel corresponding to the image to be displayed includes:
  • the preset compensation voltage set in the liquid crystal display may be a data line voltage compensation value corresponding to different pixel values of each pixel preset by different liquid crystal displays according to test data, test or experience values.
  • the maximum pixel value of the pixel on the liquid crystal display panel is 255, and the theoretical voltage of the data line corresponding to the maximum pixel value of the pixel is 5V. If the pixel value of the pixel obtained by the test is 255, the test acquires the The actual voltage of the data line of the pixel is 4.4V, so that when the pixel value is 255, the voltage compensation value of the data line is 0.6V. According to this test, it is possible to obtain a compensation voltage corresponding to a different pixel value of each pixel on the liquid crystal display panel, which is preset in the liquid crystal display. Of course, for example, for the liquid crystal display panel of the HSD architecture shown in FIG. 3, it is only necessary to test and obtain the data line. The voltage has a voltage compensation value for a different pixel value of a pixel with a rising or falling edge.
  • the preset compensation voltage set in the liquid crystal display may also be a set of products of the compensation voltage coefficient of each pixel and each pixel value of the pixel electrode, where each pixel
  • the compensation voltage coefficient is a quotient of a difference between a theoretical voltage of the data line corresponding to a certain pixel value of each pixel and an actual voltage of the data line and a maximum pixel value of each pixel.
  • the voltage of the data line of the pixel is compensated.
  • the specific pixel value of the obtained compensation voltage set may be any pixel value of the pixel. If the maximum pixel value of the pixel is 255, the specific pixel value may be any pixel value of 0-255.
  • the specific pixel value is the maximum pixel value of the pixel.
  • the driving method of the liquid crystal display panel provided by the embodiment of the present invention is to compensate according to the voltage of the data line corresponding to the pixel value of each pixel on the liquid crystal display panel corresponding to the image to be displayed, and then input the compensated data voltage into the data.
  • Driving the liquid crystal display panel for display thereby reducing the voltage input to the data line to the rising edge time of the theoretical voltage corresponding to the corresponding pixel, shortening the charging time of the pixel, and further reducing the display unevenness of the liquid crystal display.
  • an embodiment of the present invention further provides a driving device for a liquid crystal display panel, which includes a source driving unit 51 and a compensation unit 52.
  • the compensation unit 52 is configured to compensate the voltage of the data line according to the pixel value of each pixel on the liquid crystal display panel corresponding to the image to be displayed.
  • the compensation unit 52 can be implemented by using an FPGA.
  • the source driving unit 51 is configured to input a voltage of the data line compensated by the compensation unit 52 to the data line, and drive the liquid crystal display panel to display.
  • the compensation unit 52 specifically includes: an obtaining module 521 and a first compensation module 522.
  • the obtaining module 521 is configured to acquire a pixel value of each pixel corresponding to the image to be displayed and an actual voltage that the source driving unit provides to the data line.
  • the first compensation unit 522 is configured to perform compensation according to a preset compensation voltage set and an actual voltage of the data line, where the compensation voltage set is a preset different pixel value of each pixel on the liquid crystal display panel. A set of voltage compensation values for the corresponding data lines.
  • the preset compensation voltage set is a set of voltage compensation values of data lines corresponding to different pixel values of each pixel on the liquid crystal display panel.
  • the preset compensation voltage set may be a data line voltage compensation value corresponding to different pixel values of each pixel preset by different liquid crystal displays according to test data, test or experience values.
  • the maximum pixel value of the pixel on the liquid crystal display panel is 255, and the theoretical voltage of the data line corresponding to the maximum pixel value of the pixel is 5V. If the pixel value of the pixel is 255, the pixel obtained by the test is tested. The actual voltage of the data line is 4.4V, so that when the pixel value is 255, the voltage compensation value of the data line is 0.6V. According to this test, it is possible to obtain a compensation voltage corresponding to a different pixel value of each pixel on the liquid crystal display panel, which is preset in the liquid crystal display. Of course, for example, for the liquid crystal display panel of the HSD architecture shown in FIG. 3, it is only necessary to test the voltage compensation value of different pixel values of the pixels having the rising or falling edge of the voltage of the data line.
  • the preset compensation voltage set is a set of products of the compensation voltage coefficients of each pixel and each pixel value of the pixel electrode, wherein the compensation voltage coefficient of each pixel is A quotient of a difference between a theoretical voltage on the data line corresponding to a certain pixel value of each pixel and an actual voltage on the data line and a maximum pixel value of each pixel.
  • the voltage of the data line of the pixel is compensated.
  • the specific pixel value of the obtained compensation voltage set may be any pixel value of the pixel. If the maximum pixel value of the pixel is 255, the specific pixel value may be any pixel value of 0-255.
  • the driving device 50 of the liquid crystal display panel further includes a gate driving unit, or may further include a unit such as a timing controller.
  • the improvement of the driving device of the liquid crystal display panel provided by the embodiment of the present invention is not limited thereto, and the details of the embodiments of the present invention are not described herein.
  • the embodiment of the present invention further provides a liquid crystal display 60, including a liquid crystal display panel 61 and a driving device 50 of the liquid crystal display panel provided by the above embodiments, and the driving device of the liquid crystal display provided by the above embodiments Can improve the display quality of the liquid crystal display.
  • a liquid crystal display 60 including a liquid crystal display panel 61 and a driving device 50 of the liquid crystal display panel provided by the above embodiments, and the driving device of the liquid crystal display provided by the above embodiments Can improve the display quality of the liquid crystal display.
  • the specific structure of the liquid crystal display is not described herein again.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

一种液晶显示面板（61）的驱动方法、驱动装置（50）和液晶显示器（60）。该液晶显示面板（61）的驱动方法包括：根据待显示图像对应的液晶显示面板（61）上的每个像素的像素值对数据线的电压进行补偿；将所述补偿后的数据线的电压输入到所述数据线，驱动所述液晶显示面板（61）进行显示。这种驱动方法能够减小像素电极的充放电时间，提高液晶显示器的显示质量。

Description

一种液晶显示面板的驱动方法、 装置和液晶显示器 技术领域
本发明涉及液晶显示技术领域，尤其涉及一种液晶显示面板的驱动方法、 装置和液晶显示器。 背景技术
现有技术的液晶显示器包括液晶显示面板、 源极驱动单元和栅极驱动单 元，其中栅极驱动单元用于根据待显示的图像选通液晶显示面板的相应像素， 源极驱动单元用于将所接收的待显示的图像的显示数据转换为数据电压， 该 数据电压通过数据线加载在液晶显示面板上相对应的像素上， 显示相应的画 面。
源极驱动单元根据待显示图像的显示数据将转换的数据电压发送到液晶 显示面板的数据线上， 对相应的像素电极充放电。 而通常源极驱动单元发送 到数据线上的电压有一定的上升沿或下降沿， 从而会缩短像素电极充电的时 间， 从而会使得像素电极无法达到相应的灰阶亮度， 影响液晶显示器的显示 质量。 发明内容
本发明的实施例提供一种液晶显示面板的驱动方法和装置， 能够减小像 素电极的充放电时间。
进一步地， 本发明实施例还提供了一种液晶显示器， 该液晶显示器包括 上述液晶显示面板的驱动装置， 能够提高液晶显示器的显示质量。
为达到上述目的， 本发明的实施例釆用如下技术方案：
一种液晶显示面板的驱动方法， 包括：
根据待显示图像对应的液晶显示面板上的每个像素的像素值对数据线的 电压进行补偿；
将所述补偿后的数据线的电压输入到所述数据线， 驱动所述液晶显示面 板进行显示。
一种液晶显示面板的驱动装置， 包括： 栅极驱动单元和源极驱动单元， 所述装置还包括： 补偿单元； 所述补偿单元， 用于根据待显示图像对应的液晶显示面板上的每个像素 的像素值对数据线的电压进行补偿；
所述源极驱动单元， 用于将所述补偿单元补偿后的数据线的电压输入到 所述数据线， 驱动所述液晶显示面板进行显示。
另外， 本发明的实施例釆用如下技术方案。
一种液晶显示器， 包括上述液晶显示面板的驱动装置。
本发明实施例提供了一种液晶显示面板的驱动方法、装置和液晶显示器， 该驱动方法包括： 根据待显示图像对应的液晶显示面板上的每个像素的像素 值对数据线的电压进行补偿， 将所述补偿后的数据电压输入到所述液晶显示 面板， 驱动所述液晶板显示待显示的图像， 这样由于对数据线的电压进行了 补偿， 使得像素的充电时间缩短， 从而可以提高液晶显示器的显示质量。 附图说明
为了更清楚地说明本发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地介绍， 显而易见地， 下面 描述中的附图仅仅是本发明的一些实施例， 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为本发明实施例提供的一种液晶显示面板的驱动方法流程示意图； 图 2Α为源极驱动单元发送到数据线的理论电压示意图；
图 2Β为源极驱动单元发送到数据线的实际电压示意图；
图 3为像素架构为 HSD架构的液晶显示面板示意图；
图 4为 HSD架构的液晶显示面板釆用双线四点翻转驱动技术的数据线的 理论、 实际和补偿后的电压时序示意图；
图 5为本发明实施例提供的一种液晶显示面板的驱动装置结构示意图； 以及
图 6为本发明实施例提供一种液晶显示器的结构示意图。 具体实施方式
下面将结合附图， 对本发明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发明一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有做出创造性劳动的前提 下所获得的所有其他实施例， 都属于本发明保护的范围。
如图 1所示， 本发明实施例提供了一种液晶显示面板的驱动方法， 包括： 在步骤 101 , 根据待显示图像对应的液晶显示面板上的每个像素的像素 值对数据线的电压进行补偿。
在步骤 102, 将所述补偿后的数据线的电压输入到所述数据线， 驱动所 述液晶显示面板进行显示。
液晶显示器的显示方式是维持式的， 即液晶显示器在某一时刻内维持一 定的画面。 其中， 液晶显示器包括液晶显示面板的驱动装置和液晶显示面板， 该驱动装置根据待显示图像对应的每个像素的像素值向每个像素的数据线提 供相应的电压， 从而驱动液晶显示面板中的液晶旋转进行显示。 例如， 殳设 某一像素 A在 Tl、 T2、 Τ3时刻的待显示图像中对应的像素值分别为 30, 220, 100, 这样该像素 Α在 Tl、 T2和 T3时刻对应的数据线上的理论电压示意图 参见图 2A所示。 然而在实际使用过程中， 由于驱动装置输入到数据线的实 际电压通常都有一定的上升沿或下降沿，参见图 2B所示。这样由于数据线上 的电压有一定的上升沿或下降沿， 像素 A的数据线的电压达到像素值对应的 理论电压时有一定的延迟， 从而造成了像素 A充电緩慢， 使得液晶显示面板 的显示画面不均匀的问题， 本发明实施例是针对现有技术中的数据线的电压 有一定的上升沿或下降沿造成像素充电緩慢的问题提出的技术方案。 而釆用 本实施例提供的液晶显示面板的驱动方法， 能够提前对数据线的电压进行实 时补偿， 使得数据线的电压的上升沿或下降沿的时间缩短， 从而缩短液晶显 示面板上的像素的充电时间， 提高液晶显示面板的显示质量。
参考图 3所示，举例来说，液晶显示面板的像素架构为 HSD( Half Source Driving, 半源极驱动）架构。 HSD架构是指相对于传统的液晶显示面板， 扫 描线加倍数据线减半的架构，即该 HSD架构的液晶显示面板的相邻两列像素 共用同一数据线， 如图 3中， 数据线 S01被 P1列和 P2列的像素共用， 数据 线 S02被 P3列和 P4列的像素共用，数据线 S03被 P5列和 P6列的像素共用， S04被 P7列和 P8列的像素共用。 间隔列的像素共用同一扫描线， 这样同一 行的像素需要设置两条扫描线， 如图 3中， Pl、 P3、 P5和 P7列在第一行像 素中的像素共用 G01扫描线， P2、 P4、 P6和 P8列在第一行像素中的像素共 用 G02扫描线。 当然， 液晶显示面板都包括 n条扫描线 （G01、 G02...Gn ) 和 m条数据线线（S01、 S02... Sn ), 图 3中只是截取了这种 HSD架构的液晶 显示面板的一部分像素来进行说明。该 HSD架构的液晶显示面板可以釆用双 线四点反转的驱动方法， 该驱动方法的扫描线和数据线的信号的时序图， 如 图 4所示， 例如对于 Bl、 B2、 B3和 B4四个像素点来说， 需要依次扫描两条 扫描线 G03和 G04, 并向 S01输入数据线的电压， 由于该驱动方式釆用四点 反转， 则 S01上输入的电压一直持续到扫描线 G05和 G06被选通时。 然后在 依次分别选通扫描线 G07和 G08、 G09和 G10时， S01上输入的电压进行反 从而造成了数据线的电压有上升或下降沿的像素充电时间緩慢， 例如， 像素 Bl、 B5等像素， 使得液晶显示面板显示不均匀。 同样， 数据线 S02的电压在 电压反转变化时也会产生上升沿或下降沿。 基于此， 本发明实施例提供的液 晶显示面板的驱动方法， 可以对数据线的电压有上升沿或下降沿的像素的数 据线的电压进行实时补偿， 参见图 4中的对 S01数据线上的电压进行实时补 偿后的电压时序示意图 S01', 从而可以减小液晶显示器的画面显示不均匀的 问题， 其中 S01"为数据线 S01上的理论电压时序示意图。
可选地， 所述液晶显示器中预设有补偿电压集合， 所述补偿电压集合为 所述液晶显示面板上的每个像素不同像素值对应的数据线的电压补偿值的集 合。
进一步地， 根据待显示图像对应的液晶显示面板上的每个像素的像素值 对数据线的电压进行补偿具体包括：
获取所述待显示图像对应的所述每个像素的像素值和源极驱动单元提供 给所述数据线的实际电压； 根据所述补偿电压集合和所述数据线的实际电压 进行补偿。
可选地， 所述液晶显示器中预设的补偿电压集合， 可以是不同的液晶显 示器根据测试数据、 试验或经验值预设的每个像素的不同像素值对应的数据 线电压补偿值。
举例来说， 假设液晶显示面板上的像素的最大像素值为 255 , 该像素的 最大像素值对应的数据线的理论电压为 5V,假若测试获得该像素的像素值为 255时， 测试获取的该像素的数据线的实际电压为 4.4V, 这样该像素在像素 值为 255时， 数据线的电压补偿值为 0.6V。 据此测试可以获得液晶显示面板 上的每个像素的不同像素值对应的补偿电压预设于液晶显示器中。 当然， 例 如对于图 3所示的 HSD架构的液晶显示面板，可以只需要测试获得数据线的 电压有上升沿或下降沿的像素的不同像素值的电压补偿值。
可选地， 所述液晶显示器中预设的补偿电压集合， 也可以是所述每个像 素的补偿电压系数分别与所述像素电极的每一像素值的积的集合， 其中所述 每个像素的补偿电压系数是所述每个像素的某一特定像素值对应的所述数据 线的理论电压与所述数据线的实际电压的差值与每个像素的最大像素值的 商。
举例来说， 假设某一像素的特定像素值为 255 , 此时该像素对应的数据 线的理论电压 Vt和实际电压 Vm分别为 5V和 4.4V,则该像素的补偿电压系 数则为 0.0024。 这样假设像素在某一时刻像素值为 100时， 数据线的实际电 压为 1.7V, 而数据线的补偿电压为 0.24V, 该像素补偿后的对应的数据线上 的电压为 1.94V, 从而在一定程度上对该像素的数据线的电压进行了补偿。
可选地， 所述获得补偿电压集合的某一特定像素值可以为像素的任一像 素值， 若该像素的最大像素值为 255 , 该特定像素值可以是 0-255中任一像素 值。
由于像素的不同像素值对应的数据线的电压是非线性的， 为了尽量减小 补偿后的数据线的电压和数据线上的理论电压的偏差， 优选地， 该特定像素 值为像素的最大像素值。
本发明实施例提供的液晶显示面板的驱动方法， 是根据待显示图像对应 的液晶显示面板上的每个像素的像素值对应的数据线的电压进行补偿， 然后 将该补偿后数据电压输入到数据线， 驱动所述液晶显示面板进行显示， 从而 可以缩小输入到数据线的电压达到相应像素对应的理论电压的上升沿时间， 缩短像素的充电时间， 进一步减小液晶显示器的显示不均匀的问题， 提高液 晶显示器的显示质量。
如图 5所示， 本发明实施例还提供了一种液晶显示面板的驱动装置， 该 装置包括源极驱动单元 51和补偿单元 52。
所述补偿单元 52, 用于根据待显示图像对应的液晶显示面板上的每个像 素的像素值对数据线的电压进行补偿。
其中， 所述补偿单元 52具体可以釆用 FPGA来实现。
所述源极驱动单元 51 , 用于将所述补偿单元 52补偿后的数据线的电压 输入到所述数据线， 驱动所述液晶显示面板进行显示。
可选地，所述补偿单元 52具体包括：获取模块 521和第一补偿模块 522。 所述获取模块 521 , 用于获取所述待显示图像对应的所述每个像素的像 素值和所述源极驱动单元提供给所述数据线的实际电压。
所述第一补偿单元 522, 用于根据预设的补偿电压集合和所述数据线的 实际电压进行补偿， 所述补偿电压集合为预设的所述液晶显示面板上每个像 素的不同像素值对应的数据线的电压补偿值的集合。
其中， 所述预设的补偿电压集合为所述液晶显示面板上的每个像素不同 像素值对应的数据线的电压补偿值的集合。
可选地， 所述预设的补偿电压集合可以是不同的液晶显示器根据测试数 据、 试验或经验值预设的每个像素的不同像素值对应的数据线电压补偿值。
举例来说， 假设液晶显示面板上的像素的最大像素值为 255 , 该像素的 最大像素值对应的数据线的理论电压为 5V, 假若测试获得该像素像素值为 255时， 测试获取的该像素的数据线的实际电压为 4.4V, 这样该像素在像素 值为 255时， 数据线的电压补偿值为 0.6V。 据此测试可以获得液晶显示面板 上的每个像素的不同像素值对应的补偿电压预设于液晶显示器中。 当然， 例 如对于图 3所示的 HSD架构的液晶显示面板，可以只需要测试获得数据线的 电压有上升沿或下降沿的像素的不同像素值的电压补偿值。
可选地， 所述预设的补偿电压集合为所述每个像素的补偿电压系数分别 与所述像素电极的每一像素值的积的集合， 其中所述每个像素的补偿电压系 数是所述每个像素的某一特定像素值对应的所述数据线上的理论电压与所述 数据线上的实际电压的差值与每个像素的最大像素值的商。
举例来说， 假设某一像素的特定像素值为 255 , 此时该像素对应的数据 线的理论电压 Vt和实际电压 Vm分别为 5V和 4.4V,则该像素的补偿电压系 数则为 0.0024。 这样假设该像素在某一时刻像素值为 100时， 数据线的电压 为 1.7V, 而数据线的电压补偿值为 0.24V, 像素补偿后的对应的数据线上的 电压为 1.94V, 从而在一定程度上对该像素的数据线的电压进行了补偿。
可选地， 所述获得补偿电压集合的某一特定像素值可以为像素的任一像 素值， 若该像素的最大像素值为 255 , 该特定像素值可以是 0-255中任一像素 值。
由于像素的不同像素值对应的数据线的电压是非线性的， 为了尽量减小 补偿后的数据线的电压和数据线上的理论电压的偏差， 优选地， 该特定像素 值为像素的最大像素值。 需要的说明的是， 该液晶显示面板的驱动装置 50还包括栅极驱动单元， 或者还可以包括时序控制器等单元等。 由于本发明实施例提供的液晶显示面 板的驱动装置的改进点不在于此， 本发明实施例对此不再赘述。
如图 6所示， 本发明实施例还提供了一种液晶显示器 60, 包括液晶显示 面板 61和上述实施例提供的液晶显示面板的驱动装置 50, 釆用上述实施例 提供的液晶显示器的驱动装置能够提高液晶显示器的显示质量。 其中， 所述 液晶显示器的具体结构， 本发明实施例在此不再赘述。
本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成， 前述的程序可以存储于计算机可读取 存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述的 存储介质包括： ROM, RAM,磁碟或者光盘等各种可以存储程序代码的介质。
以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并不局限 于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易 想到变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护 范围应以所述权利要求的保护范围为准。

Claims

权 利 要 求 书
1、 一种液晶显示面板的驱动方法， 其中， 所述方法包括：
根据待显示图像对应的液晶显示面板上的每个像素的像素值对数据线的 电压进行补偿；
将所述补偿后的数据线的电压输入到所述数据线， 驱动所述液晶显示面 板进行显示。
2、根据权利要求 1所述的方法， 其中， 所述根据待显示图像对应的液晶 显示面板上的每个像素的像素值对数据线的电压进行补偿具体包括：
获取所述待显示图像对应的所述每个像素的像素值和源极驱动单元提供 给所述数据线的实际电压；
根据预设的补偿电压集合和所述数据线的实际电压进行补偿， 所述补偿 电压集合为预设的所述液晶显示面板上每个像素的不同像素值对应的数据线 的电压补偿值的集合。
3、根据权利要求 2所述的方法， 其中， 所述补偿电压集合为所述每个像 素的补偿电压系数分别与所述每个像素的每一像素值的积的集合， 其中所述 每个像素的补偿电压系数是所述每个像素的某一特定像素值对应的所述数据 线的理论电压与所述数据线的实际电压的差值与每个像素的最大像素值的 商。
4、根据权利要求 3所述的方法， 其中， 所述某一特定像素值为所述每个 像素的最大像素值。
5、 一种液晶显示面板的驱动装置， 包括： 源极驱动单元， 其中， 所述装 置还包括： 补偿单元；
所述补偿单元， 用于根据待显示图像对应的液晶显示面板上的每个像素 的像素值对数据线的电压进行补偿；
所述源极驱动单元， 用于将所述补偿单元补偿后的数据线的电压输入到 所述数据线， 驱动所述液晶显示面板进行显示。
6、 根据权利要求 5所述的装置， 其中， 所述补偿单元具体包括： 获取模 块和第一补偿模块；
所述获取模块， 用于获取所述待显示图像对应的所述每个像素的像素值 和源极驱动单元提供给所述数据线的实际电压； 所述第一补偿模块， 用于根据预设的补偿电压集合和所述数据线的实际 电压进行补偿， 所述补偿电压集合为预设的所述液晶显示面板上每个像素的 不同像素值对应的数据线的电压补偿值的集合。
7、根据权利要求 6所述的装置， 其中， 所述补偿电压集合为所述每个像 素的补偿电压系数分别与所述像素电极的每一像素值的积的集合， 其中所述 每个像素的补偿电压系数为所述每个像素的某一特定像素值对应的所述数据 线的理论电压与所述数据线的实际电压的差值与每个像素的最大像素值的 商。
8、根据权利要求 7所述的装置， 其中， 所述某一特定像素值为所述每个 像素的最大像素值。
9、 一种液晶显示器， 包括液晶显示面板， 其中， 包括权利要求 5-8任一 项所述的装置。
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