WO2013010344A1 - 液晶显示装置及其信号驱动方法 - Google Patents

液晶显示装置及其信号驱动方法 Download PDF

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Publication number
WO2013010344A1
WO2013010344A1 PCT/CN2011/078949 CN2011078949W WO2013010344A1 WO 2013010344 A1 WO2013010344 A1 WO 2013010344A1 CN 2011078949 W CN2011078949 W CN 2011078949W WO 2013010344 A1 WO2013010344 A1 WO 2013010344A1
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Prior art keywords
pixel
sub
pixels
signal
data
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English (en)
French (fr)
Inventor
康志聪
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US13/375,226 priority Critical patent/US20130021321A1/en
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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
    • 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
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
    • 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 a display device, and more particularly to a liquid crystal display device.
  • the present invention also relates to a signal driving method, and more particularly to a signal driving method of a liquid crystal display device.
  • Overdrive (Over Driving) technology is a technique for improving the display effect of a liquid crystal display panel.
  • Conventional overdrive technology generally compares the front and back image signals to look up the table to find the pre-defined internal difference voltage value to improve the response speed.
  • This method requires the use of a frame buffer (Frame). Buffer) to store the previous image, and then compare with the current image, the above-mentioned predefined internal difference voltage value also needs to be stored in the memory, in addition to the timing controller (Time Control Register, TCON).
  • TCON Time Control Register
  • the general way of driving the overdrive function by column drive is as shown in Fig. 1.
  • the original signal is switched from 1V to 3V.
  • a 5V signal is usually inserted into the original signal.
  • the voltage in the pixel changes from 1V to 3V, it takes one frame to charge, and the frame buffer is required to cooperate with it.
  • the pitch between the strip electrodes in the pixel electrode is designed to be large in order to achieve high transmittance, and the liquid crystal is instantaneously driven to cause the twist angle to be incorrect. Therefore, when switching from a low gray level to a high gray level, a so-called rhino horn phenomenon is often generated, which reduces the display effect.
  • An object of the present invention is to provide a liquid crystal display device and a signal driving method of the liquid crystal display device To solve the problem of poor display performance of existing liquid crystal displays.
  • An object of the present invention is to provide a liquid crystal display device to solve the problem that the display performance of the conventional liquid crystal display is not good.
  • the present invention constructs a liquid crystal display device comprising: a scan driving module for generating a scan signal and transmitting the scan signal to the scan line; and a data driving module for generating a data signal and transmitting the data signal a data line; a thin film transistor array panel having pixels disposed thereon, the pixels including a sub-pixel R, a sub-pixel G, and a sub-pixel B; and a scan line coupled to a sub-pixel of the pixel
  • the scan signal sequentially scans the sub-pixels in the same row in columns; the data lines are coupled to at least one of the pixels, and the data lines are used to input the data signals And in the sub-pixel, further configured to cause the data signal to pre-charge the sub-pixel before the data signal is input to the sub-pixel; a common line, the common line and a second of the pixels a pixel coupling for applying a high voltage or a low voltage to the sub-pixel according to a polarity of the sub-pixel coupled thereto; the common line and the data
  • the common line continuously transmits a high level or a low level to sub-pixels of different columns to which it is coupled.
  • the common line alternately transmits a high level or a low level to sub-pixels of different rows to which it is coupled.
  • Another object of the present invention is to provide a liquid crystal display device to solve the problem of poor display performance of the conventional liquid crystal display.
  • the present invention constructs a liquid crystal display device comprising: a scan driving module for generating a scan signal and transmitting the scan signal to the scan line; and a data driving module for generating a data signal and transmitting the data signal a data line; a thin film transistor array panel having pixels disposed thereon, the pixels including a sub-pixel R, a sub-pixel G, and a sub-pixel B; and a scan line coupled to a sub-pixel of the pixel
  • the scan signal sequentially scans the sub-pixels in the same row in columns; the data lines are coupled to at least one of the pixels, and the data lines are used to input the data signals And in the sub-pixel, further configured to cause the data signal to pre-charge the sub-pixel before the data signal is input to the sub-pixel; a common line, the common line and a second of the pixels a pixel coupling for applying a high voltage or a low voltage to the sub-pixel according to a polarity of the sub-pixel coupled thereto; the common line and the data
  • the common line continuously transmits a high level or a low level to sub-pixels of different columns to which it is coupled.
  • the common line alternately transmits a high level or a low level to sub-pixels of different rows to which it is coupled.
  • the three sub-pixel arrays of the pixel are arranged in a direction parallel to the scanning direction of the scanning signal.
  • two adjacent sub-pixels of two adjacent pixels have opposite polarities.
  • each of the common lines is coupled to sub-pixels in the same pixel of the same polarity.
  • each of the data lines is coupled to a sub-pixel in the same pixel having the same polarity.
  • the polarities of two adjacent sub-pixels in the same pixel are the same.
  • Another object of the present invention is to provide a signal driving method of a liquid crystal display device.
  • the present invention provides a signal driving method for a liquid crystal display device, characterized in that the liquid crystal display device includes a scan driving module, a data driving module, a thin film transistor array panel, a scan line, and a data line,
  • the thin film transistor array panel is provided with pixels, and the pixels include a sub-pixel R, a sub-pixel G and a sub-pixel B, the common line is parallel to a direction in which the scanning signal is scanned, and the method comprises the following steps: (A), The scan driving module generates a scan signal and transmits the scan signal to the scan line; (B) the data drive module generates a data signal and transmits the data signal to the data line; (C), the scan line will Transmitting a scan signal to at least one of the pixels, the scan signal sequentially scanning the sub-pixels in the same row in columns; (D), the data line transmitting the data line to at least the pixels a sub-pixel, wherein the data line inputs the data signal into the sub-pixel, before
  • the step (E) specifically includes the following steps: (E1), the common line continuously sends a high level to the sub-pixels of different columns coupled thereto One of the low levels, or the common line alternately transmits one of a high level or a low level to the sub-pixels of different rows coupled thereto.
  • the invention has the beneficial effects that: compared with the prior art, the invention does not need to use a frame buffer on one hand, which saves cost; on the other hand, it does not need to use complicated timing function to overdrive; the third aspect, if The conventional phenomenon of comparing the front and rear signal look-up tables to overdrive can greatly avoid the phenomenon that the liquid crystal is instantaneously driven and the twist angle is incorrect.
  • the invention does not need to use a frame buffer on the one hand, which saves cost; on the other hand, it does not need to use complicated timing function to overdrive; the third aspect, if the traditional front and rear signals are used
  • the table comparison can greatly prevent the phenomenon that the liquid crystal is instantaneously driven to cause the twist angle to be incorrect when the drive is overdriven.
  • FIG. 1 is a schematic diagram of a column drive overdrive mode in the prior art
  • FIG. 2 is a block diagram of a liquid crystal display device of the present invention.
  • FIG. 3 is a partial schematic view showing an embodiment of a liquid crystal display device of the present invention.
  • FIG. 4 is a schematic view showing signal driving of a liquid crystal display device of the present invention.
  • the liquid crystal display device of the present invention adopts a pre-charge in a frame and an array common line (Array) Com)
  • Array array common line
  • FIG. 2 is a block diagram of a liquid crystal display device of the present invention.
  • the liquid crystal display device of the present invention includes a scan driving module 204, a data driving module 201, a thin film transistor array panel 202, a scanning line (gate line) 205, a common line 203, and a data line 207.
  • the common line 203 and the data line 207 is set in parallel.
  • the thin film transistor array panel 202 is provided with a pixel 206, which includes three sub-pixels, and the sub-pixels are not shown in FIG.
  • the scan driving module 204 is configured to generate a scan signal, which is sent by the scan driving module 204 to the scan line 205, and the data driving module 201 is configured to generate a data signal, and the data signal is sent by the data driving module 201 to the Data line 207.
  • the scan line 205 is coupled to the pixel 206. Specifically, the scan line 205 is coupled to at least one sub-pixel of the pixel 206, and the data line 207 is coupled to the pixel 206, specifically, at least one of the data line 207 and the pixel 206.
  • the pixels are coupled, and the common line 203 is coupled to the pixel 206. Specifically, the common line 203 is coupled to at least one of the pixels 206.
  • FIG. 3 is a partial schematic view showing an embodiment of a liquid crystal display device of the present invention
  • FIG. 4 is a schematic view showing an embodiment of signal driving of the liquid crystal display device of the present invention
  • the tri-gate column driver (Tri-gate) is composed of three inverted sub-pixels (sub-pixel R, sub-pixel G, and sub-pixel B).
  • the sub-pixel R, the sub-pixel G, and the sub-pixel B are vertically arranged in parallel with the scanning direction of the scanning signal.
  • the scanning signal of the scanning line sequentially scans each row of sub-pixels in the thin film transistor array panel in columns.
  • the sub-pixel R, the sub-pixel G, and the sub-pixel B are sequentially arranged in a direction parallel to the scanning direction of the scanning signal.
  • the data lines (including the data lines 1 and the data lines 2) are arranged in the direction in which the sub-pixel R, the sub-pixel G, and the sub-pixel B are arranged.
  • each row of pixels of the thin film transistor panel has the same polarity, that is, three sub-pixels of each pixel have the same polarity.
  • the pixels of two adjacent rows have opposite polarities.
  • the data lines (including the data lines 1 and the data lines 2) are coupled to the pixels of the same row.
  • the data lines 1 and the first pixels 310 each have a positive polarity sub-pixel R311, a sub-pixel G312, a sub-pixel B313, and a
  • the sub-pixel R331, the sub-pixel G332, and the sub-pixel B333 each having a positive polarity in the three pixels 330 are coupled.
  • the data line 2 and the sub-pixel R321, the sub-pixel G322, the sub-pixel B323, and the fourth pixel 340 each having a negative polarity in the second pixel 320 are coupled to the sub-pixel R341, the sub-pixel G342, and the sub-pixel B343 each having a negative polarity.
  • the common lines (including the common line 1 and the common line 2) are arranged in parallel with the scanning moving direction between the scanning lines, and are arranged in an array.
  • the common line is coupled to the sub-pixel of the same row, specifically, the common line 1 (com 1) coupling with the sub-pixel R331, the sub-pixel G332, and the sub-pixel B333 having the positive polarity in each of the sub-pixel R311, the sub-pixel G312, the sub-pixel B313, and the third pixel 330 having the positive polarity in the first pixel 310, common Line 2 (com 2)
  • the sub-pixel R341, the sub-pixel G342, and the sub-pixel B343 each having a negative polarity in each of the sub-pixel R321, the sub-pixel G322, the sub-pixel B323, and the fourth pixel 340 having the negative polarity in the second pixel 320 are coupled.
  • the sub-pixel R311 of the first pixel 310 and the sub-pixel R321 of the second pixel 320 constitute a first column of sub-pixels, and the sub-pixel G312 of the first pixel 310 and the sub-pixel G322 of the second pixel 320 form a second sub-pixel.
  • the common line and the data line are arranged in parallel with each other, and the common line and the scan line (gate line) are arranged perpendicular to each other.
  • the liquid crystal display device of the present invention does not require one frame of time to charge the flipped pixels because the flipped pixels have been utilized by the data signals in the same frame before the charging voltage in the flipped pixels is changed from 1 V to 3 V. 8V pre-charge.
  • the inversion pixel in-pixel charging voltage 1V is charged by the data signal 6V and the common electrode signal 5V or the data signal 4V and the common electrode signal 5V to the inverted pixel.
  • Inverting the in-pixel charging voltage 3V is to charge the inverted pixel by the data signal 8V and the common electrode signal 5V or the data signal 2V and the common electrode signal 5V.
  • Inverting the pixel pre-charge 8V is to charge the flipped pixel by the data signal 8V and the common electrode modulation signal 0V or the data signal 2V and the common electrode modulation signal 10V.
  • the first set of gate signals sends a high level signal to the gates of the first column of sub-pixels (including the sub-pixel R311 of the first flip pixel 310 and the sub-pixel R321 of the second flip pixel 320) to open the first column of sub-pixels.
  • the gate is modulated by the data line 8V and the common electrode before the charging voltage in the first column of sub-pixels (including the sub-pixel R311 of the first flip pixel 310 and the sub-pixel R321 of the second flip pixel 320) is changed from 1V to 3V.
  • the signal 0V or the data signal 2V and the charging voltage 8V of the common electrode modulation signal 10V are used to precharge the first column of sub-pixels.
  • the first group of gate signals sends a high level signal to the gate of the first row of sub-pixels
  • the sub-pixel R311 of the first flip pixel 310 has a positive polarity data line 8V
  • the common electrode voltage of the common line 1 is adjusted by 5V. Changing to a low voltage of 0 V, the sub-pixel R311 of the first flip pixel 310 is precharged with a high voltage of 8V.
  • the sub-pixel R321 of the second flip pixel 320 is the negative polarity data line 2V, and the sub-pixel R321 of the second flip pixel 320 is precharged with a high voltage of 8V in cooperation with the common electrode high voltage 10V of the common line 2.
  • the common electrode voltage of the common line 1 is restored from the low voltage 0V to the normal common electrode voltage of 5V and the common electrode voltage of the common line 2 is restored from the high voltage 10V to the normal common electrode voltage of 5V.
  • the sub-pixel R311 of the first flip pixel 310 and the sub-pixel R321 of the second flip pixel 320 are restored to the normal pixel required voltage 3V by the precharged 8V high voltage.
  • the first group of gate signals sends a low voltage signal to the first column of sub-pixels to turn off the gate of the first column of sub-pixels; the second group of gate signals to the second column of sub-pixels (including the first inverted pixel 310)
  • the gate of the pixel G312, the sub-pixel G322 of the second flip pixel 320 transmits a high level signal to turn on the gate of the second column of sub-pixels; likewise, the second column of sub-pixels (including the sub-pixel of the first flipped pixel 310) G312, the charging voltage in the sub-pixel G322) of the second flip pixel 320 is changed from 1V to 3V, and is given by the data line 8V and the common electrode modulation signal 0V or the data signal 2V and the charging voltage of the common electrode modulation signal 10V 8V.
  • the two columns of sub-pixels are pre-charged.
  • the second group of gate signals sends a high level signal to the gate of the second column of sub-pixels
  • the common electrode voltage of the common line 1 is 5V.
  • the sub-pixel G312 of the first flip pixel 310 is precharged with a high voltage of 8V.
  • the sub-pixel G322 of the second flip pixel 320 is the negative polarity data line 2V
  • the sub-pixel R322 of the second flip pixel 320 is precharged with a high voltage of 8V in cooperation with the common electrode high voltage 10V of the common line 2.
  • the common electrode voltage of the common line 1 is restored from the low voltage 0V to the normal common electrode voltage of 5V and the common electrode voltage of the common line 2 is restored from the high voltage 10V to the normal common electrode voltage of 5V.
  • the sub-pixel R312 of the first flip pixel 310 and the sub-pixel R322 of the second flip pixel 320 are restored from the precharged 8V high voltage to the normal pixel required voltage 3V.
  • the second group of gate signals sends a low voltage signal to the second column of sub-pixels to turn off the gates of the second column of sub-pixels; and then, the third group of gate signals are sent to the gates of the third column of sub-pixels
  • the level signal turns on the gate of the third column of sub-pixels; and so on, the overdrive function can be implemented in one frame.
  • the common line 1 and the common line 2 repeatedly transmit a high level or a low level to sub-pixels in different rows coupled thereto, and the common lines 1 and 2 are based on the sub-pixel Polarity to send a high or low level; or common line 1 and common line 2 alternately send a high or low level to the sub-pixels in different rows to which they are coupled, common line 1 and common line 2 is to send a high level or a low level according to the polarity of the sub-pixel.
  • the signal driving method of the liquid crystal display device of the present invention comprises the steps of: the scan driving module 204 generates a scan signal and transmits the scan signal to the scan line 205; the data driving module 201 generates a data signal and the data signal
  • the scan line 205 sends the scan signal to at least one sub-pixel in the pixel 206.
  • the scan signal sequentially scans the sub-pixels in the same row in columns; the data line 207 sends the data signal to the pixel 206.
  • the data line 207 pre-charges the sub-pixel before inputting the data signal into the sub-pixel; the common line 203 applies a high voltage or a low voltage to the sub-pixel according to the polarity of the sub-pixel coupled thereto, Specifically, the common line 203 continuously transmits one of a high level or a low level to the sub-pixels of different columns coupled thereto, or the common line 203 alternately transmits high power to the sub-pixels of different rows coupled thereto One of the flat or low level, the common line 203 transmits a high level or a low level according to the polarity of the sub-pixel.

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Abstract

一种液晶显示装置，该液晶显示装置通过帧内预充电及阵列公共线高低电平信号的配合，在每个正确的数据信号写入到像素前都对像素先行充电一高电压，相当于在正确的数据信号写入到像素前进行过驱动。一种液晶显示装置的信号驱动方法。本发明一方面不需要使用帧缓冲器，节约了成本；另一方面，不需要使用复杂的定时功能来进行过驱动；第三方面，在使用传统的将前后信号查表比较以进行过驱动时能大大避免液晶瞬时受到驱动而造成扭转角度不正确的现象的发生。

Description

液晶显示装置及其信号驱动方法 技术领域
本发明涉及一种显示装置，特别是涉及一种液晶显示装置。
本发明还涉及一种信号驱动方法，特别是涉及一种液晶显示装置的信号驱动方法。
 背景技术
过驱动（Over Driving）技术是一种用于改善液晶显示面板显示效果的技术。传统的过驱动技术一般将前后图像信号作查表比较来找出预先定义的内差电压值以提高响应速度，这种做法需要使用帧缓冲器（Frame Buffer）来存储前一图像，然后再与当前图像作比较，上述预先定义的内差电压值也需要存储在存储器中，此外还需要定时控制器（Time Control Register， TCON）的配合。
一般的以列驱动实现过驱动功能的方式如图1所示，原信号从1V切换至3V，为提高响应速度，通常会在原信号中插入5V的信号。当像素内的电压由1V变成3V时需要耗费一帧的时间来充电，而且需要帧缓冲器与之配合。
以PVA来看，如果只做一组内差查表，由于为了达到高穿透率而将像素电极中的条状电极间的间距设计成较大，造成液晶瞬时受到驱动而导致扭转角度不正确，于是，当从低灰阶切换到高灰阶时往往会产生所谓犀牛角现象，降低了显示效果。
故，有必要提供一种液晶显示装置及其信号驱动方法，以解决现有技术所存在的问题。
 技术问题
本发明的一个目的在于提供一种液晶显示装置及液晶显示装置的信号驱动方法 ，以解决现有液晶显示器显示效果不佳的问题。
技术解决方案
本发明的一个目的在于提供一种液晶显示装置，以解决现有液晶显示器显示效果不佳的问题。
本发明构造了一种液晶显示装置，包括：扫描驱动模块，用于产生扫描信号并将所述扫描信号发送给所述扫描线；数据驱动模块，用于产生数据信号并将所述数据信号发送给所述数据线；薄膜晶体管阵列面板，其上设有像素，所述像素包括次像素R、次像素G和次像素B；扫描线，所述扫描线与所述像素中的次像素耦接，所述扫描信号对处于同一行的次像素按列依次扫描；数据线，所述数据线与所述像素中的至少一个次像素耦接，所述数据线用于在将所述数据信号输入到所述次像素中，还用于在所述数据信号输入到所述次像素之前使得所述数据信号对所述次像素进行预充电；公共线，所述公共线与所述像素中的次像素耦接，用于根据与其耦接的所述次像素的极性向所述次像素施加高电压或低电压；所述公共线、数据线与所述扫描信号扫描的方向平行，所述扫描线与所述扫描信号扫描的方向垂直；所述像素的三个所述次像素排列按与所述扫描信号的扫描方向平行的方向排列；水平方向上两个相邻的所述像素的相邻两个次像素具有相反的极性，垂直方向上两个相邻的所述像素的相邻两个次像素具有相同的极性；每一条所述公共线与极性相同的同一像素内的次像素耦接；每一条所述数据线与极性相同的同一像素内的次像素耦接；同一像素内相邻两个次像素的极性相同。
在本发明的液晶显示装置中，所述公共线向与其耦接的不同列的次像素持续地发送高电平或低电平。
在本发明的液晶显示装置中，所述公共线向与其耦接的不同行的次像素交替地发送高电平或低电平。
本发明的另一个目的在于提供一种液晶显示装置，以解决现有液晶显示器显示效果不佳的问题。
本发明构造了一种液晶显示装置，包括：扫描驱动模块，用于产生扫描信号并将所述扫描信号发送给所述扫描线；数据驱动模块，用于产生数据信号并将所述数据信号发送给所述数据线；薄膜晶体管阵列面板，其上设有像素，所述像素包括次像素R、次像素G和次像素B；扫描线，所述扫描线与所述像素中的次像素耦接，所述扫描信号对处于同一行的次像素按列依次扫描；数据线，所述数据线与所述像素中的至少一个次像素耦接，所述数据线用于在将所述数据信号输入到所述次像素中，还用于在所述数据信号输入到所述次像素之前使得所述数据信号对所述次像素进行预充电；公共线，所述公共线与所述像素中的次像素耦接，用于根据与其耦接的所述次像素的极性向所述次像素施加高电压或低电压；所述公共线、数据线与所述扫描信号扫描的方向平行，所述扫描线与所述扫描信号扫描的方向垂直。
在本发明的液晶显示装置中，所述公共线向与其耦接的不同列的次像素持续地发送高电平或低电平。
在本发明的液晶显示装置中，所述公共线向与其耦接的不同行的次像素交替地发送高电平或低电平。
在本发明的液晶显示装置中，所述像素的三个所述次像素排列按与所述扫描信号的扫描方向平行的方向排列。
在本发明的液晶显示装置中，两个相邻的所述像素的相邻两个次像素具有相反的极性。
在上述的液晶显示装置中，每一条所述公共线与极性相同的同一像素内的次像素耦接。
在上述的液晶显示装置中，每一条所述数据线与极性相同的同一像素内的次像素耦接。
在上述的液晶显示装置中，同一像素内相邻两个次像素的极性相同。
本发明的另一个目的在于提供一种液晶显示装置的信号驱动方法。
为解决上述问题，本发明构造了一种液晶显示装置的信号驱动方法，其特征在于，所述液晶显示装置包括扫描驱动模块、数据驱动模块、薄膜晶体管阵列面板、扫描线和数据线，所述薄膜晶体管阵列面板上设有像素，所述像素包括次像素R、次像素G和次像素B，所述公共线与所述扫描信号扫描的方向平行，所述方法包括以下步骤：（A）、扫描驱动模块产生扫描信号并将所述扫描信号发送给所述扫描线；（B）、数据驱动模块产生数据信号并将所述数据信号发送给所述数据线；（C）、扫描线将所述扫描信号发送给所述像素中的至少一个次像素，所述扫描信号对处于同一行的次像素按列依次扫描；（D）、数据线将所述数据线发送给所述像素中的至少一个次像素，所述数据线在将所述数据信号输入到所述次像素中，在所述数据信号输入到所述次像素之前使得所述数据信号对所述次像素进行预充电；（E）、公共线根据与其耦接的所述次像素的极性向所述次像素施加高电压或低电压。
在本发明的液晶显示装置的信号驱动方法中，所述步骤（E）具体包括以下步骤：（E1）、所述公共线向与其耦接的不同列的所述次像素持续发送高电平或低电平中的一种，或者所述公共线向与其耦接的不同行的所述次像素交替发送高电平或低电平中的一种。
本发明的有益效果是：相对于现有技术，本发明一方面不需要使用帧缓冲器，节约了成本；另一方面，不需要使用复杂的定时功能来进行过驱动；第三方面，如果在使用传统的将前后信号查表比较以进行过驱动时能大大避免液晶瞬时受到驱动而造成扭转角度不正确的现象的发生。
 有益效果
相对于现有技术，本发明一方面不需要使用帧缓冲器，节约了成本；另一方面，不需要使用复杂的定时功能来进行过驱动；第三方面，如果在使用传统的将前后信号查表比较以进行过驱动时能大大避免液晶瞬时受到驱动而造成扭转角度不正确的现象的发生。
 附图说明
图1为现有技术中列驱动的过驱动方式的示意图；
图2为本发明的液晶显示装置的框图；
图3为本发明的液晶显示装置的实施例的局部示意图；
图4为本发明的液晶显示装置信号驱动的示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
在图中，结构相似的单元是以相同标号表示。
本发明的液晶显示装置通过帧（Frame）内预充电（Pre-charge）及阵列公共线（Array com）高低电平信号的配合，在每个正确的数据信号写入到像素前都对像素先行充电一高电压，相当于在正确的数据信号写入到像素前进行过驱动（Over Driving）。
参考图2，图2为本发明的液晶显示装置的框图。本发明的液晶显示装置包括扫描驱动模块204、数据驱动模块201、薄膜晶体管阵列面板202、扫描线（栅极线）205、公共线203和数据线207，图2中，公共线203与数据线207平行设置。薄膜晶体管阵列面板202上设有像素206，该像素206包括三个次像素，图2中未示出次像素。扫描驱动模块204用于产生扫描信号，该扫描信号由该扫描驱动模块204发送给所述扫描线205，数据驱动模块201用于产生数据信号，该数据信号被该数据驱动模块201发送给所述数据线207。扫描线205与像素206耦接，具体地，扫描线205与像素206中的至少一个次像素耦接，数据线207与像素206耦接，具体地，数据线207与像素206中的至少一个次像素耦接，公共线203与像素206耦接，具体地，公共线203与像素206中的至少一个次像素耦接。
参考图3和图4，图3为本发明的液晶显示装置的实施例的局部示意图，图4为本发明的液晶显示装置信号驱动的实施例的示意图。在本实施例中，三栅极列驱动（Tri-gate）是由三个翻转的次像素（次像素R、次像素G和次像素B）组成。次像素R、次像素G和次像素B按与扫描信号的扫描方向平行纵向排列。在本发明的液晶显示装置中，扫描线的扫描信号对薄膜晶体管阵列面板中的每一行次像素按列依次进行扫描。次像素R、次像素G和次像素B按与扫描信号的扫描方向平行的方向依次排列。数据线（包括数据线1和数据线2）按次像素R、次像素G和次像素B排列的方向设置。在本实施例中，薄膜晶体管面板的每一行像素均具有相同的极性，即每一个像素的三个次像素均具有相同的极性。相邻两行的像素的极性相反。数据线（包括数据线1和数据线2）与同一行的像素耦接，具体地，数据线1与第一像素310中均具有正极性的次像素R311、次像素G312、次像素B313和第三像素330中均具有正极性的次像素R331、次像素G332、次像素B333耦接。数据线2与第二像素320中均具有负极性的次像素R321、次像素G322、次像素B323和第四像素340中均具有负极性的次像素R341、次像素G342、次像素B343耦接。公共线（包括公共线1和公共线2）设置与扫描线间扫描移动方向平行，并且以阵列的形式排列。公共线与同一行的次像素耦接，具体地，公共线1（com 1）与第一像素310中均具有正极性的次像素R311、次像素G312、次像素B313和第三像素330中均具有正极性的次像素R331、次像素G332、次像素B333耦接，公共线2（com 2）与第二像素320中均具有负极性的次像素R321、次像素G322、次像素B323和第四像素340中均具有负极性的次像素R341、次像素G342、次像素B343耦接。第一像素310的次像素R311与第二像素320的次像素R321组成第一列次像素，第一像素310的次像素G312与第二像素320的次像素G322组成第二列次像素，依此类推。公共线和数据线为相互平行设置，公共线和扫描线（栅极线）为相互垂直设置。
图4中，本发明的液晶显示装置不需要耗费一帧的时间来给翻转像素充电，因为在翻转像素内的充电电压由1V变成3V之前已经利用了同一帧内的数据信号对翻转像素进行8V预充电。上述翻转像素内充电电压1V是由数据信号6V与共电极信号5V或者数据信号4V与共电极信号5V对翻转像素进行充电。翻转像素内充电电压3V是由数据信号8V与共电极信号5V或者数据信号2V与共电极信号5V对翻转像素进行充电。翻转像素预充电8V是由数据信号8V与共电极调变信号0V或者数据信号2V与共电极调变信号10V对翻转像素进行充电。第一组栅极信号向第一列次像素（包括第一翻转像素310的次像素R311、第二翻转像素320的次像素R321）的栅极发送高电平信号以打开第一列次像素的栅极，让第一列次像素（包括第一翻转像素310的次像素R311、第二翻转像素320的次像素R321）内的充电电压由1V变成3V前，利用数据线8V与共电极调变信号0V或者数据信号2V与共电极调变信号10V的充电电压8V来给第一列次像素进行预充电。当第一组栅极信号向第一列次像素的栅极发送高电平信号时，由于第一翻转像素310的次像素R311正极性数据线8V，配合公共线1的共电极电压由5V调变至低电压0V，对第一翻转像素310的次像素R311预充一8V高电压。于此同一时间，第二翻转像素320的次像素R321是负极性数据线2V，配合公共线2的共电极高电压10V，对第二翻转像素320的次像素R321预充一8V高电压。紧接著，公共线1的共电极电压由低电压0V回复到正常共电极电压5V且公共线2的共电极电压由高电压10V回复到正常共电极电压5V。此时，第一翻转像素310的次像素R311及第二翻转像素320的次像素R321便由预充8V高电压回复到正常像素需求电压3V。接著，第一组栅极信号向第一列次像素发送低电压信号以关闭第一列次像素的栅极；第二组栅极信号向第二列次像素（包括第一翻转像素310的次像素G312、第二翻转像素320的次像素G322）的栅极发送高电平信号以打开第二列次像素的栅极；同样，让第二列次像素（包括第一翻转像素310的次像素G312、第二翻转像素320的次像素G322）内的充电电压由1V变成3V前，利用数据线8V与共电极调变信号0V或者数据信号2V与共电极调变信号10V的充电电压8V来给第二列次像素进行预充电。当第二组栅极信号向第二列次像素的栅极发送高电平信号时，由于第一翻转像素310的次像素G312是正极性数据线8V，配合公共线1的共电极电压由5V调变至低电压0V，对第一翻转像素310的次像素G312预充一8V高电压。同时，第二翻转像素320的次像素G322是负极性数据线2V，配合公共线2的共电极高电压10V，对第二翻转像素320的次像素R322预充一8V高电压。紧接著，公共线1的共电极电压由低电压0V回复到正常共电极电压5V且公共线2的共电极电压由高电压10V回复到正常共电极电压5V。此时，第一翻转像素310的次像素R312及第二翻转像素320的次像素R322便由预充8V高电压回复到正常像素需求电压3V。紧接著，第二组栅极信号向第二列次像素发送低电压信号以关闭第二列次像素的栅极；再接著，第三组栅极信号向第三列次像素的栅极发送高电平信号一打开第三列次像素的栅极；依此类推，便可在一帧内实现过驱动功能。
作为对本发明的液晶显示装置的一种改进，公共线1和公共线2重复地向与其耦接的处于不同行的次像素发送高电平或低电平，公共线1和2是根据次像素的极性来发送高电平或低电平的；或者公共线1和公共线2交替地向与其耦接的处于不同行的次像素发送高电平或低电平，公共线1和公共线2是根据次像素的极性来发送高电平或低电平的。
统观上述实施例，本发明的液晶显示装置的信号驱动方法包括以下步骤：扫描驱动模块204产生扫描信号并将该扫描信号发送给扫描线205；数据驱动模块201产生数据信号并将该数据信号发送给数据线207；扫描线205将该扫描信号发送给像素206中的至少一个次像素，扫描信号对处于同一行的次像素按列依次扫描；数据线207将该数据信号发送给像素206中的至少一个次像素，数据线207在将该数据信号输入到次像素中之前对该次像素进行预充电；公共线203根据与其耦接的次像素的极性向次像素施加高电压或低电压，具体地，公共线203向与其耦接的不同列的次像素持续地发送高电平或低电平中的一种，或者公共线203向与其耦接的不同行的次像素交替地发送高电平或低电平中的一种，公共线203根据次像素的极性来发送高电平或低电平。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
 本发明的实施方式
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Claims (13)

  1. 一种液晶显示装置，其特征在于，包括：
    扫描驱动模块，用于产生扫描信号并将所述扫描信号发送给所述扫描线；
    数据驱动模块，用于产生数据信号并将所述数据信号发送给所述数据线；
    薄膜晶体管阵列面板，其上设有像素，所述像素包括次像素R、次像素G和次像素B；
    扫描线，所述扫描线与所述像素中的次像素耦接，所述扫描信号对处于同一行的次像素按列依次扫描；
    数据线，所述数据线与所述像素中的至少一个次像素耦接，所述数据线用于在将所述数据信号输入到所述次像素中，还用于在所述数据信号输入到所述次像素之前使得所述数据信号对所述次像素进行预充电；
    公共线，所述公共线与所述像素中的次像素耦接，用于根据与其耦接的所述次像素的极性向所述次像素施加高电压或低电压；
    所述公共线、数据线与所述扫描信号扫描的方向平行，所述扫描线与所述扫描信号扫描的方向垂直；
    所述像素的三个所述次像素排列按与所述扫描信号的扫描方向平行的方向排列；
    水平方向上两个相邻的所述像素的相邻两个次像素具有相反的极性，垂直方向上两个相邻的所述像素的相邻两个次像素具有相同的极性；
    每一条所述公共线与极性相同的同一像素内的次像素耦接；
    每一条所述数据线与极性相同的同一像素内的次像素耦接；
    同一像素内相邻两个次像素的极性相同。
  2. 根据权利要求1所述的液晶显示装置，其特征在于，所述公共线向与其耦接的不同列的次像素持续地发送高电平或低电平。
  3. 根据权利要求1所述的液晶显示装置，其特征在于，所述公共线向与其耦接的不同行的次像素交替地发送高电平或低电平。
  4. 一种液晶显示装置，其特征在于，包括：
    扫描驱动模块，用于产生扫描信号并将所述扫描信号发送给所述扫描线；
    数据驱动模块，用于产生数据信号并将所述数据信号发送给所述数据线；
    薄膜晶体管阵列面板，其上设有像素，所述像素包括次像素R、次像素G和次像素B；
    扫描线，所述扫描线与所述像素中的次像素耦接，所述扫描信号对处于同一行的次像素按列依次扫描；
    数据线，所述数据线与所述像素中的至少一个次像素耦接，所述数据线用于在将所述数据信号输入到所述次像素中，还用于在所述数据信号输入到所述次像素之前使得所述数据信号对所述次像素进行预充电；
    公共线，所述公共线与所述像素中的次像素耦接，用于根据与其耦接的所述次像素的极性向所述次像素施加高电压或低电压；
    所述公共线、数据线与所述扫描信号扫描的方向平行，所述扫描线与所述扫描信号扫描的方向垂直。
  5. 根据权利要求4所述的液晶显示装置，其特征在于，所述公共线向与其耦接的不同列的次像素持续地发送高电平或低电平。
  6. 根据权利要求4所述的液晶显示装置，其特征在于，所述公共线向与其耦接的不同行的次像素交替地发送高电平或低电平。
  7. 根据权利要求4所述的液晶显示装置，其特征在于，所述像素的三个所述次像素排列按与所述扫描信号的扫描方向平行的方向排列。
  8. 根据权利要求4所述的液晶显示装置，其特征在于，两个相邻的所述像素的相邻两个次像素具有相反的极性。
  9. 根据权利要求8所述的液晶显示装置，其特征在于，每一条所述公共线与极性相同的同一像素内的次像素耦接。
  10. 根据权利要求8所述的液晶显示装置，其特征在于，每一条所述数据线与极性相同的同一像素内的次像素耦接。
  11. 根据权利要求8所述的液晶显示装置，其特征在于，同一像素内相邻两个次像素的极性相同。
  12. 一种液晶显示装置的信号驱动方法，其特征在于，所述液晶显示装置包括扫描驱动模块、数据驱动模块、薄膜晶体管阵列面板、扫描线和数据线，所述薄膜晶体管阵列面板上设有像素，所述像素包括次像素R、次像素G和次像素B，所述公共线与所述扫描信号扫描的方向平行，所述方法包括以下步骤：
    （A）、扫描驱动模块产生扫描信号并将所述扫描信号发送给所述扫描线；
    （B）、数据驱动模块产生数据信号并将所述数据信号发送给所述数据线；
    （C）、扫描线将所述扫描信号发送给所述像素中的至少一个次像素，所述扫描信号对处于同一行的次像素按列依次扫描；
    （D）、数据线将所述数据线发送给所述像素中的至少一个次像素，所述数据线在将所述数据信号输入到所述次像素中，在所述数据信号输入到所述次像素之前使得所述数据信号对所述次像素进行预充电；
    （E）、公共线根据与其耦接的所述次像素的极性向所述次像素施加高电压或低电压。
  13. 根据权利要求12所述的液晶显示装置的信号驱动方法，其特征在于，所述步骤（E）具体包括以下步骤：
    （E1）、所述公共线向与其耦接的不同列的所述次像素持续发送高电平或低电平中的一种，或者所述公共线向与其耦接的不同行的所述次像素交替发送高电平或低电平中的一种。
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JP5778119B2 (ja) * 2012-11-30 2015-09-16 株式会社ジャパンディスプレイ タッチ検出機能付き表示装置及び電子機器
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US10147371B2 (en) * 2014-06-27 2018-12-04 Lg Display Co., Ltd. Display device having pixels with shared data lines

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008139610A (ja) * 2006-12-04 2008-06-19 Sony Corp 液晶表示装置および液晶表示装置の駆動方法
JP2009092787A (ja) * 2007-10-05 2009-04-30 Sony Corp 表示装置、表示装置の駆動方法および電子機器
CN101952875A (zh) * 2008-02-19 2011-01-19 夏普株式会社 显示装置、显示装置的驱动方法、以及扫描信号线驱动电路
CN101995722A (zh) * 2009-08-10 2011-03-30 乐金显示有限公司 液晶显示器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5648793A (en) * 1992-01-08 1997-07-15 Industrial Technology Research Institute Driving system for active matrix liquid crystal display
CN101236318B (zh) * 2007-02-02 2010-04-21 群康科技(深圳)有限公司 液晶显示装置及其驱动方法
CN101620841A (zh) * 2008-06-30 2010-01-06 恩益禧电子股份有限公司 显示面板驱动方法及显示装置
CN101996607B (zh) * 2010-11-24 2012-07-25 友达光电股份有限公司 液晶显示面板

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008139610A (ja) * 2006-12-04 2008-06-19 Sony Corp 液晶表示装置および液晶表示装置の駆動方法
JP2009092787A (ja) * 2007-10-05 2009-04-30 Sony Corp 表示装置、表示装置の駆動方法および電子機器
CN101952875A (zh) * 2008-02-19 2011-01-19 夏普株式会社 显示装置、显示装置的驱动方法、以及扫描信号线驱动电路
CN101995722A (zh) * 2009-08-10 2011-03-30 乐金显示有限公司 液晶显示器

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