CN202178045U

CN202178045U - LCD (Liquid Crystal Display) device

Info

Publication number: CN202178045U
Application number: CN2011202184694U
Authority: CN
Inventors: 康志聪
Original assignee: Shenzhen China Star Optoelectronics Technology Co Ltd
Current assignee: TCL China Star Optoelectronics Technology Co Ltd
Priority date: 2011-06-24
Filing date: 2011-06-24
Publication date: 2012-03-28
Anticipated expiration: 2021-06-24

Abstract

The utility model discloses an LCD device. The LCD device includes a scanning drive module used for generating a scanning signal and sending the scanning signal to a scanning line; a data drive module used for a generating data signal and sending the data signals to a data line; a thin film transistor array panel provided with pixels including a subpixel R, a subpixel G and a subpixel B; the scanning line whose scanning signal scans the subpixels in the same line successively from row to row; and the data line used for inputting high voltage for pre-charging before sending the data signal into the subpixel and inputting a signal used for displaying an image to the subpixel after the pre-charging. The scanning line couples with at least one subpixel in the pixels. And the data line couples with at least one subpixel in the the pixels.

Description

Liquid crystal indicator

[technical field]

The utility model relates to a kind of display device, particularly relates to a kind of liquid crystal indicator.

[background technology]

(Over Driving) technology of overdriving is a kind of technology that is used to improve the display panels display effect.Traditional overdrive technique is generally tabled look-up the front and back picture signal and is relatively found out predefined interpolation magnitude of voltage to improve response speed; This way need use frame buffer (Frame Buffer) to store previous image; And then make comparisons with present image; Above-mentioned predefined interpolation magnitude of voltage also need be stored in the storer, needs timing controller (Time Control Register, cooperation TCON) in addition.

It is general that to drive the mode of the function that realizes overdriving with row as shown in Figure 1; Original signal switches to 3V (positive-negative polarity voltage is respectively 8V/2V) from 1V (positive-negative polarity voltage is respectively 6V/4V); For improving response speed, can in original signal, insert the signal of 5V (positive-negative polarity voltage is respectively 10V/0V) usually.The time that when the voltage in the pixel becomes 3V by 1V, need expend a frame charges, and makes it to obtain the voltage of 5V.

With PVA; If only doing one group of interpolation tables look-up; Owing in order to reach high penetration the spacing between the strip shaped electric poles in the pixel electrode is designed to greatlyyer, cause instantaneous being activated of liquid crystal and cause windup-degree incorrect, so; When low GTG switches to high gray, tending to produce so-called rhinoceros horn phenomenon, reduced display effect.

So, be necessary to provide a kind of liquid crystal indicator and signal driving method thereof, to solve the existing in prior technology problem.

[utility model content]

A purpose of the utility model is to provide a kind of liquid crystal indicator, and it can realize overdriving in a frame.

For addressing the above problem, the utility model has been constructed a kind of liquid crystal indicator, comprising: be used to produce sweep signal and said sweep signal sent to the turntable driving module of said sweep trace; Be used to produce data-signal and said data-signal sent to the data-driven module of said data line; Thin-film transistor display panel which is provided with pixel, and said pixel comprises time pixel R, inferior pixel G and inferior pixel B; Its sweep signal is to being in the inferior pixel of the delegation sweep trace by leu time scanning, and the inferior pixel of at least one in said sweep trace and the said pixel couples; Be used for before said data-signal being input to said pixel, said pixel input high voltage being carried out precharge; And input is used for the data line of the signal of display image to said pixel again after precharge, and the inferior pixel of at least one in said data line and the said pixel couples.

In a preferred embodiment of the utility model; Said liquid crystal indicator comprises that also the polarity that is used for said the pixel that basis couples with it applies the concentric line of high voltage or low-voltage to said pixel, and time pixel of at least one in said concentric line and the said pixel couples.

In a preferred embodiment of the utility model, three said pixels of said pixel are arranged by the direction parallel with the direction of scanning of said sweep signal and are arranged.

In a preferred embodiment of the utility model, three said pixels of said pixel are arranged by the direction vertical with the direction of scanning of said sweep signal and are arranged.

In a preferred embodiment of the utility model, said concentric line is vertical to the direction that inferior pixel scans with said sweep signal.

In a preferred embodiment of the utility model, adjacent two pixels of two adjacent said pixels have antipole property.

In a preferred embodiment of the utility model, the inferior pixel that the said concentric line of each bar is identical with polarity couples.

In a preferred embodiment of the utility model, the inferior pixel that the said data line of each bar is identical with polarity couples.

The beneficial effect of the utility model is: with respect to prior art, the utility model need not use frame buffer on the one hand, has practiced thrift cost; On the other hand, need not use complicated timing function to overdrive; The third aspect is if cause the generation of the incorrect phenomenon of windup-degree using traditional comparison that the front and back signal is tabled look-up can avoid instantaneous being activated of liquid crystal greatly when overdriving.

For letting the foregoing of the utility model can be more obviously understandable, hereinafter is special lifts preferred embodiment, and cooperates appended graphicly, elaborates as follows:

[description of drawings]

Fig. 1 is the synoptic diagram of the mode of overdriving of row driving in the prior art;

Fig. 2 is the block diagram of the liquid crystal indicator of the utility model;

Fig. 3 is the partial schematic diagram of first preferred embodiment of the liquid crystal indicator of the utility model;

Fig. 4 is the synoptic diagram that the liquid crystal indicator signal of the utility model drives;

Fig. 5 is the partial schematic diagram of second preferred embodiment of the liquid crystal indicator of the utility model;

Fig. 6 is the partial schematic diagram of the 3rd preferred embodiment of the liquid crystal indicator of the utility model;

Fig. 7 is the partial schematic diagram of the 4th preferred embodiment of the liquid crystal indicator of the utility model.

[embodiment]

Below the explanation of each embodiment be with reference to additional graphic, can be in order to illustration the utility model in order to the specific embodiment of implementing.The direction term that the utility model is mentioned, for example " on ", D score, " preceding ", " back ", " left side ", " right side ", " interior ", " outward ", " side " etc., only be direction with reference to annexed drawings.Therefore, the direction term of use is in order to explanation and understands the utility model, but not in order to restriction the utility model.

In the drawings, the unit of structural similarity is to represent with same numeral.

The liquid crystal indicator of the utility model is through the cooperation of interior precharge of frame (Frame) (Pre-charge) and array concentric line (Array com) high-low level signal;, each proper data signal, is equivalent to before the proper data signal is written to pixel, overdrive (Over Driving) before being written to pixel all to the pixel high voltage that charges in advance.

With reference to figure 2, Fig. 2 is the block diagram of the liquid crystal indicator of the utility model.The liquid crystal indicator of the utility model comprises turntable driving module 204, data-driven module 201, thin-film transistor display panel 202, concentric line 205, sweep trace (gate line) 203 and data line 207; Among Fig. 2, sweep trace 203 and data line 207 vertical settings.Thin-film transistor display panel 102 is provided with pixel 206, and this pixel 206 comprises pixel, not shown pixel among Fig. 2 three times.Turntable driving module 204 is used to produce sweep signal (signal); This sweep signal is sent to said sweep trace 203 by this turntable driving module 204; Data-driven module 201 is used to produce data-signal, and this data-signal is sent to said data line 207 by this data-driven module 201.Sweep trace 203 couples with pixel 206, and particularly, time pixel of at least one in sweep trace 203 and the pixel 206 couples; Data line 207 couples with pixel 206; Particularly, time pixel of at least one in data line 207 and the pixel 206 couples, and concentric line 205 couples with pixel 206; Particularly, at least one time pixel in concentric line 205 and the pixel 206 couples.

With reference to figure 3 and Fig. 4, Fig. 3 is the partial schematic diagram of first preferred embodiment of the liquid crystal indicator of the utility model, and Fig. 4 is the synoptic diagram that the liquid crystal indicator signal of the utility model drives.In the present embodiment, three grids row drivings (Tri-gate) are made up of the inferior pixel (inferior pixel R, inferior pixel G and inferior pixel B) of three upsets.Inferior pixel R, inferior pixel G and inferior pixel B are by arranging with the direction of scanning parallel longitudinal direction of sweep signal.In the present embodiment; Data line designs according to Flip pixel; Data line (comprising data line 1 and data line 2) is the direction setting of pixel R, inferior pixel G and the arrangement of inferior pixel B in due order; And two pixels of head and the tail in data line and one the upset pixel couple and couple with the inferior pixel of the centre of adjacent upset pixel; Particularly, the inferior pixel G342 of the inferior pixel R351 of the inferior pixel B 313 of the inferior pixel G322 of the inferior pixel R311 of the data line 1 and the first upset pixel 310, the second upset pixel, the first upset pixel, the 5th upset pixel 350, the 4th upset pixel 340 and the inferior pixel B 353 of the 5th upset pixel 350 couple.Concentric line (comprising concentric line 0, concentric line 1, concentric line 2 and concentric line 3) is arranged on the direction vertical with data line and with the form of array (Array) and arranges.In the present embodiment; The inferior pixel that staggers mutually in concentric line and adjacent two the upset pixels in the horizontal direction couples; Particularly; Concentric line 0 couples the inferior pixel R321 of the second upset pixel 320; Concentric line 1 (com 1) couples the inferior pixel R311 of the first upset pixel 310, the inferior pixel G322 of the second upset pixel 320 and the inferior pixel R331 of the 3rd upset pixel 330; Concentric line 2 (com 2) couples the inferior pixel G312 of the first upset pixel 310, the inferior pixel B 323 of the second upset pixel 320 and the inferior pixel G332 of the 3rd upset pixel 330, and concentric line 3 (com 3) couples the inferior pixel B 313 of the first upset pixel 310, the inferior pixel R351 of the 5th upset pixel 350 and the inferior pixel B 333 of the 3rd upset pixel 330.The first upset pixel 310 is adjacent with the second upset pixel 320, and the first upset the pixel 310 and second adjacent inferior pixel polarity of pixel 320 of overturning is opposite; The first upset pixel 310 is adjacent with the 4th upset pixel 340, and the first upset pixel 310 and the 4th adjacent inferior pixel polarity of pixel 340 of overturning is opposite.Among Fig. 4, the liquid crystal indicator of the utility model need not expend the time of a frame to the charging of upset pixel, because the charging voltage in the upset pixel had utilized the data-signal in the same frame that the upset pixel is carried out 8V precharge become 3V by 1V before.In the above-mentioned upset pixel charging voltage 1V be by data-signal 6V and concentric line (common electrode) signal 5V or data-signal 4V together electrode signal 5V the pixel of overturning is charged.In the upset pixel charging voltage 3V be by data-signal 8V together electrode signal 5V or data-signal 2V together electrode signal 5V the upset pixel is charged.Upset pixel precharge 8V is charged to the pixel of overturning by data-signal 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V.First group of signal sent high level signal to open the grid of the first row time pixel to the grid of the first row time pixel (comprising the inferior pixel R311 of the first upset pixel 310, the inferior pixel R321 of the second upset pixel 320 and the inferior pixel R331 of the 3rd upset pixel 330); Before letting the interior charging voltage of the first row time pixel (comprising inferior pixel R311 of the first upset pixel 310, inferior pixel R321 of the second upset pixel 320 and inferior pixel R331 of the 3rd upset pixel 330) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to be listed as inferior pixel and carry out precharge to first by 1V.When first group of signal when the grid of the first row time pixel sends high level signal; Because the inferior pixel R331 of the inferior pixel R311 of the first upset pixel 310 and the 3rd upset pixel 330 all is positive polarity data line 8V; The common electrode voltage that cooperates concentric line 1 by the 5V modulation to low-voltage 0V, to the overturn inferior pixel R331 preliminary filling one 8V high voltage of pixel 330 of inferior pixel R311 and the 3rd of the first upset pixel 310.Simultaneously, the inferior pixel R321 of the second upset pixel 320 is negative polarity data line 2V, cooperates the common electrode high voltage 10V of concentric line 0, to the inferior pixel R321 preliminary filling one 8V high voltage of the second upset pixel 320.Then, first group of signal sent low voltage signal to close the grid of the first row time pixel to the first row time pixel; Second group of signal sent high level signal to open the grid of secondary series time pixel to the grid of secondary series time pixel (comprising the inferior pixel G312 of the first upset pixel 310, the inferior pixel G322 of the second upset pixel 320 and the inferior pixel G332 of the 3rd upset pixel 330); Equally; Before letting the interior charging voltage of secondary series time pixel (comprising the inferior pixel G312 of the first upset pixel 310, the inferior pixel G322 of the second upset pixel 320 and the inferior pixel G332 of the 3rd upset pixel 330) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to carry out precharge to secondary series time pixel by 1V.When second group of signal when the grid of secondary series time pixel sends high level signal; Because the inferior pixel G332 of the inferior pixel G312 of the first upset pixel 310 and the 3rd upset pixel 330 all is negative polarity data line 2V; The common electrode voltage that cooperates concentric line 2 by the 5V modulation to high voltage 10V, to the overturn inferior pixel G332 preliminary filling one 8V high voltage of pixel 330 of inferior pixel G312 and the 3rd of the first upset pixel 310.Simultaneously, the inferior pixel G322 of the second upset pixel 320 is positive polarity data line 8V, and the common electrode low-voltage 0V when cooperating concentric line 1 also to keep with first group of signal unlatching is to the inferior pixel G322 preliminary filling one 8V high voltage of the second upset pixel 320.And then, second group of signal sent low voltage signal to close the grid of secondary series time pixel to secondary series time pixel; The 3rd group of signal sent high level signal to open the grid of the 3rd row time pixel to the grid of the 3rd row time pixel (comprising the inferior pixel B 313 of the first upset pixel 310, the inferior pixel B 323 of the second upset pixel 320 and the inferior pixel B 333 of the 3rd upset pixel 330); Identical; Before letting the interior charging voltage of the 3rd row time pixel (comprising inferior pixel B 313 of the first upset pixel 310, inferior pixel B 323 of the second upset pixel 320 and inferior pixel B 333 of the 3rd upset pixel 330) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to be listed as inferior pixel and carry out precharge to the 3rd by 1V.When the 3rd group of signal when the grid of the 3rd row time pixel sends high level signal; Because the inferior pixel B 333 of the inferior pixel B 313 of the first upset pixel 310 and the 3rd upset pixel 330 all is positive polarity data line 8V; The common electrode voltage that cooperates concentric line 3 by the 5V modulation to low-voltage 0V, to the overturn inferior pixel B 333 preliminary fillings one 8V high voltage of pixel 330 of inferior pixel B 313 and the 3rd of the first upset pixel 310.Simultaneously, the inferior pixel B 323 of the second upset pixel 320 is negative polarity data line 2V, and the common electrode high voltage 10V when cooperating concentric line 2 also to keep with second group of signal unlatching is to the inferior pixel B 323 preliminary fillings one 8V high voltage of the second upset pixel 320.When the 3rd group of signal when the grid of the 3rd row time pixel sends high level signal; First group of signal also can be sent high level signal to the grid of the first row time pixel; Because the inferior pixel R331 of the inferior pixel R311 of the first upset pixel 310 and the 3rd upset pixel 330 all is positive polarity data line 8V; Cooperate the common electrode voltage of concentric line 1 this moment to be returned to normal common electrode voltage 5V, just the inferior pixel R311 of the first upset pixel 310 and the inferior pixel R331 of the 3rd upset pixel 330 are filled with correct display-object voltage 3V.Simultaneously, the inferior pixel R321 of the second upset pixel 320 is negative polarity data line 2V, cooperates concentric line 0 common electrode voltage to be returned to normal common electrode voltage 5V, correct display-object voltage 3V on the inferior pixel R321 preliminary filling to the second upset pixel 320.Follow, the 4th group of signal sent high level signal to open the grid of the 4th row time pixel to the grid of the 4th row time pixel again; The rest may be inferred, just can in a frame, realize overdriving function.

With reference to figure 5, Fig. 5 is the partial schematic diagram of second preferred embodiment of the liquid crystal indicator of the utility model.In the present embodiment, the upset pixel is made up of the inferior pixel (inferior pixel R, inferior pixel G and inferior pixel B) of three upsets.In the present embodiment, the upset pixel is that three grids row drive, and the upset pixel is pressed leu and driven.Three pixels of upset pixel are by the vertical arrangement parallel with the direction of scanning of sweep signal.All times pixels in data line and one upset pixel pixel R, inferior pixel G and inferior pixel B direction of arranging in due order couple, and data-signal drives and drives with column driving mode, and promptly the polarity of all inferior pixels is identical in delegation.Particularly, inferior pixel R511, inferior pixel G512 and the inferior pixel B 513 of the data line 1 and the first upset pixel 510 couple.Common electrode concentric line 1 couples the inferior pixel R511 of the first upset pixel 510 and the inferior pixel R531 and time pixel G532 of time pixel G512 and the 3rd upset pixel 530; Concentric line 2 couples the inferior pixel G522 and time pixel B 523 of the second upset pixel 520, and concentric line 3 couples inferior pixel R541 and the inferior pixel B 533 of the 3rd upset pixel 530 and the inferior pixel R561 of the 6th upset pixel 560 of the inferior pixel B 513 and the 4th upset pixel 540 of the first upset pixel 510.Concentric line 1, concentric line 2 and concentric line 3 are arranged on the direction vertical with data line and with the form of array and arrange.The first upset pixel 510 is adjacent with the second upset pixel 520, and the first upset the pixel 510 and second adjacent inferior pixel polarity of pixel 520 of overturning is opposite.With reference to figure 5 and Fig. 4; First group of signal sent high level signal to open the grid of the first row time pixel to the grid of the first row time pixel (comprising the inferior pixel R511 of the first upset pixel 510, the inferior pixel R521 of the second upset pixel 520 and the inferior pixel R531 of the 3rd upset pixel 530); Before letting the interior charging voltage of the first row time pixel (comprising inferior pixel R511 of the first upset pixel 510, inferior pixel R521 of the second upset pixel 520 and inferior pixel R531 of the 3rd upset pixel 530) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to be listed as inferior pixel and carry out precharge to first by 1V.When first group of signal when the grid of the first row time pixel sends high level signal; Because the inferior pixel R531 of the inferior pixel R511 of the first upset pixel 510 and the 3rd upset pixel 530 all is positive polarity data line 8V; The common electrode voltage that cooperates concentric line 1 by the 5V modulation to low-voltage 0V, to the overturn inferior pixel R531 preliminary filling one 8V high voltage of pixel 530 of inferior pixel R511 and the 3rd of the first upset pixel 510.Simultaneously, the inferior pixel R521 of the second upset pixel 520 is negative polarity data line 2V, cooperates the common electrode high voltage 10V of concentric line 0, to the inferior pixel R521 preliminary filling one 8V high voltage of the second upset pixel 520.Then, first group of signal sent low voltage signal to close the grid of the first row time pixel to the first row time pixel; Second group of signal sent high level signal to open the grid of secondary series time pixel to the grid of secondary series time pixel (comprising the inferior pixel G512 of the first upset pixel 510, the inferior pixel G522 of the second upset pixel 520 and the inferior pixel G532 of the 3rd upset pixel 530); Before letting the interior charging voltage of secondary series time pixel (comprising the inferior pixel G512 of the first upset pixel 510, the inferior pixel G522 of the second upset pixel 520 and the inferior pixel G532 of the 3rd upset pixel 530) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to carry out precharge to secondary series time pixel by 1V.When second group of signal when the grid of secondary series time pixel sends high level signal; Because the inferior pixel G532 of the inferior pixel G512 of the first upset pixel 510 and the 3rd upset pixel 530 all is positive polarity data line 8V; Cooperate the common electrode voltage of concentric line 1 to keep the common electrode low-voltage 0V when first group of signal opened together, to the inferior pixel G512 of the first upset pixel 510 and the inferior pixel G532 preliminary filling one 8V high voltage of the 3rd upset pixel 530.Simultaneously, inferior pixel R522 of the second upset pixel 520 is negative polarity data line 2V, the common electrode voltage that cooperates concentric line 2 by the 5V modulation to high voltage 10V, to second overturn pixel 520 inferior pixel G522 preliminary filling one 8V high voltage.And then, second group of signal sent low voltage signal to close the grid of secondary series time pixel to secondary series time pixel; The 3rd group of signal sent high level signal to open the grid of the 3rd row time pixel to the grid of the 3rd row time pixel (comprising the inferior pixel B 513 of the first upset pixel 510, the inferior pixel G523 of the second upset pixel 520 and the inferior pixel G533 of the 3rd upset pixel 530); Before letting the interior charging voltage of the 3rd row time pixel (comprising inferior pixel B 513 of the first upset pixel 510, inferior pixel B 523 of the second upset pixel 520 and inferior pixel B 533 of the 3rd upset pixel 530) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to be listed as inferior pixel and carry out precharge to the 3rd by 1V.When the 3rd group of signal when the grid of the 3rd row time pixel sends high level signal; Because the inferior pixel B 533 of the inferior pixel B 513 of the first upset pixel 510 and the 3rd upset pixel 530 all is positive polarity data line 8V; The common electrode voltage that cooperates concentric line 3 by the 5V modulation to low-voltage 0V, to the overturn inferior pixel B 533 preliminary fillings one 8V high voltage of pixel 530 of inferior pixel B 513 and the 3rd of the first upset pixel 510.Simultaneously; The inferior pixel B 523 of the second upset pixel 520 is negative polarity data line 2V; Cooperate the common electrode voltage of concentric line 2 to keep the common electrode high voltage 10V when second group of signal opened together, to the inferior pixel B 523 preliminary fillings one 8V high voltage of the second upset pixel 520.When the 3rd group of signal when the grid of the 3rd row time pixel sends high level signal; First group of signal also can be sent high level signal to the grid of the first row time pixel; Because the inferior pixel R531 of the inferior pixel R511 of the first upset pixel 510 and the 3rd upset pixel 530 all is positive polarity data line 8V; Cooperate the common electrode voltage of concentric line 1 this moment to be returned to normal common electrode voltage 5V, just the inferior pixel R511 of the first upset pixel 510 and the inferior pixel R531 of the 3rd upset pixel 530 are filled with correct display-object voltage 3V.Simultaneously, inferior pixel R521 of the second upset pixel 520 is negative polarity data line 2V, cooperates the common electrode voltage of concentric line 0 to be returned to normal common electrode voltage 5V, to second overturn pixel 520 inferior pixel R521 fill correct display-object voltage 3V with.And then, the 4th group of signal begins to send a high level signal to open the grid of the 4th row time pixel to the grid of the 4th row time pixel; The rest may be inferred, just can in a frame, realize overdriving function.

With reference to figure 6, Fig. 6 is the partial schematic diagram of the 3rd preferred embodiment of the liquid crystal indicator of the utility model.In the present embodiment, vertical strip (Vertical Strip) pixel is made up of the inferior pixel (inferior pixel R, inferior pixel G and inferior pixel B) of three vertical strips (Vertical Strip).Inferior pixel R, inferior pixel G and inferior pixel B are arranged in order in the horizontal direction.Data-signal drives and drives with column driving mode, and promptly the polarity of all inferior pixels is identical in delegation.Vertical strip pixel is pressed leu and is driven (Vertical Strip with Column Driving).Data line is by becoming vertical direction setting with inferior pixel R, inferior pixel G and inferior pixel B orientation.Every data line couples with being in time pixel of the same polarity in the vertical strip pixel in the delegation; Particularly, the inferior pixel B 651 of the vertical strip pixel 650 with the 5th of inferior pixel B 631 of inferior pixel B the 611, the 3rd vertical strip pixel 630 of the vertical strip pixel 610 with first of data line 1 couples.Concentric line 1, concentric line 2 and concentric line 3 are arranged by the direction setting vertical with data line and with the form of array.In the present embodiment; The inferior pixel G642 of the inferior pixel R633 of the vertical strip pixel 630 with the 3rd of inferior pixel R613 of inferior pixel B 631, the first vertical strip pixel 610 of the vertical strip pixel 630 with the 3rd of inferior pixel B 611 of the vertical strip pixel 610 with first of concentric line 1 and the vertical strip pixel 640 with the 4th of inferior pixel G622 of the second vertical strip pixel 620 couples; The inferior pixel R663 of the inferior pixel B 661 of the inferior pixel G652 of the vertical strip pixel 650 with the 5th of inferior pixel G632 of the vertical strip pixel 630 with the 3rd of concentric line 2, the inferior pixel B 641 of the 4th vertical strip pixel 640 and sextuple vertical bar shape pixel 660 and the inferior pixel R643 of the 4th vertical strip pixel 640 and sextuple vertical bar shape pixel 660 couples, and the rest may be inferred for concentric line 3.The vertical strip pixel with second of the first vertical strip pixel 610 620 is adjacent, and the inferior pixel polarity that the vertical strip pixel with second of the first vertical strip pixel 610 620 is adjacent is opposite; The vertical strip pixel with the 3rd of the first vertical strip pixel 610 630 is adjacent, and the inferior pixel polarity that the vertical strip pixel with the 3rd of the first vertical strip pixel 610 630 is adjacent is opposite.With reference to figure 6 and Fig. 4; First group of signal sent high level signal to open the grid of the first row time pixel to the grid of the first row time pixel (comprising the inferior pixel B 611 of the first vertical strip pixel 610, inferior pixel G612, inferior pixel R613 and the inferior pixel B 621 of the second vertical strip pixel 620, inferior pixel G622, inferior pixel R623); Before letting the interior charging voltage of the first row time pixel (comprising the inferior pixel B 611 of the first vertical strip 610, inferior pixel G612, inferior pixel R613 and the inferior pixel B 621 of the second vertical strip 620, inferior pixel G622, inferior pixel R623) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to carry out precharge to the first row time pixel by 1V.When first group of signal when the grid of the first row time pixel sends high level signal; Because the inferior pixel G622 of inferior pixel B 611, inferior pixel R613 and the second vertical strip pixel 620 of the first vertical strip pixel 610 all is positive polarity data line 8V; The common electrode voltage that cooperates concentric line 1 by the 5V modulation to low-voltage 0V, to the inferior pixel G622 preliminary filling one 8V high voltage of the inferior pixel B 611 of the first vertical strip pixel 610, inferior pixel R613 and the second vertical strip pixel 620.Simultaneously; The inferior pixel B 621 and time pixel R623 of the vertical strip pixel 620 with second of inferior pixel G612 of the first vertical strip pixel 610 are negative polarity data line 2V; The common electrode high voltage 10V that cooperates concentric line 0 reaches inferior pixel R623 preliminary filling one 8V high voltage to the inferior pixel B 621 of the vertical strip pixel 620 with second of inferior pixel G612 of the first vertical strip pixel 610.Then, first group of signal sent low voltage signal to close the grid of the first row time pixel to the first row time pixel; Second group of signal sent high level signal to open the grid of secondary series time pixel to the grid of secondary series time pixel (comprising the inferior pixel B 631 of the 3rd vertical strip pixel 630, inferior pixel G632, inferior pixel R633 and the inferior pixel B 641 of the 4th vertical strip pixel 640, inferior pixel G642, inferior pixel R643); Before letting the interior charging voltage of secondary series time pixel (comprising the inferior pixel B 631 of the 3rd vertical strip pixel 630, inferior pixel G632, inferior pixel R633 and the inferior pixel B 641 of the 4th vertical strip pixel 640, inferior pixel G642, inferior pixel R643) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to carry out precharge to secondary series time pixel by 1V.When second group of signal when the grid of secondary series time pixel sends high level signal; Because the inferior pixel G642 of inferior pixel B 631, inferior pixel R633 and the 4th vertical strip pixel 640 of the 3rd vertical strip pixel 630 all is positive polarity data line 8V; Cooperate the common electrode voltage of concentric line 1 to keep the common electrode low-voltage 0V when first group of signal opened together, to the inferior pixel G642 preliminary filling one 8V high voltage of the inferior pixel B 631 of the 3rd group of vertical strip pixel 630, inferior pixel R633 and the 4th group of vertical strip pixel 640.Simultaneously; The inferior pixel B 641 and time pixel R643 of the vertical strip pixel 640 with the 4th of inferior pixel G632 of the 3rd vertical strip pixel 630 are negative polarity data line 2V; The common electrode voltage that cooperates concentric line 2 to high voltage 10V, reaches inferior pixel R643 preliminary filling one 8V high voltage to the inferior pixel B 641 of the vertical strip pixel 640 with the 4th of inferior pixel G632 of the 3rd vertical strip pixel 630 by the 5V modulation.And then, second group of signal sent low voltage signal to close the grid of secondary series time pixel to secondary series time pixel; The 3rd group of signal sent high level signal to open the grid of the 3rd row time pixel to the grid of the 3rd row time pixel (the inferior pixel B 661, inferior pixel G662, the inferior pixel R663 that comprise the inferior pixel B 651 of the 5th vertical strip pixel 650, inferior pixel G652, inferior pixel R653 and sextuple vertical bar shape pixel 660); Before letting the interior charging voltage of the 3rd row time pixel (comprising the inferior pixel B 651 of the 5th vertical strip 650, inferior pixel G652, inferior pixel R653 and the inferior pixel B 661 of sextuple vertical bar shape 660, inferior pixel G662, inferior pixel R663) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to carry out precharge to the 3rd row time pixel by 1V.When the 3rd group of signal when the grid of the 3rd row time pixel sends high level signal; Because the inferior pixel G662 of inferior pixel B 651, inferior pixel R653 and the sextuple vertical bar shape pixel 660 of the 5th vertical strip pixel 650 all is positive polarity data line 8V; The common electrode voltage that cooperates concentric line 3 by the 5V modulation to low-voltage 0V, to a 8V high voltage on the inferior pixel G662 preliminary filling of the inferior pixel B 651 of the 5th vertical strip pixel 650, inferior pixel R653 and sextuple vertical bar shape pixel 660.Simultaneously; The inferior pixel B 661 and time pixel R663 of the inferior pixel G652 of the 5th vertical strip pixel 650 and sextuple vertical bar shape pixel 660 are negative polarity data line 2V; Cooperate the common electrode electricity of concentric line 2 to keep the common electrode high voltage 10V when second group of signal opened together, to the inferior pixel G652 of the 5th group of vertical strip pixel 650 and the inferior pixel B 661 and time pixel R663 preliminary filling one 8V high voltage of sextuple vertical bar shape pixel 660.When the 3rd group of signal when the grid of the 3rd row time pixel sends high level signal; First group of signal also can be sent high level signal to the grid of the first row time pixel; Because the inferior pixel G622 of inferior pixel B 611, inferior pixel R613 and second group of vertical strip pixel 620 of first group of vertical strip pixel 610 all is positive polarity data line 8V; Cooperate the common electrode voltage of concentric line 1 this moment to be returned to normal common electrode voltage 5V, just inferior pixel B 611 to first group of vertical strip pixel 610 reaches, the inferior pixel G622 of inferior pixel R613 and second group of vertical strip pixel 620 fills correct display-object voltage 3V with.Simultaneously; The inferior pixel G612 of first group of vertical strip pixel 610 and the inferior pixel B 621 of second group of vertical strip pixel 620, inferior pixel R623 are negative polarity data line 2V; Cooperate the common electrode voltage of concentric line 0 to be returned to normal common electrode voltage 5V, the inferior pixel G612 of first group of vertical strip pixel 610 and the inferior pixel B 621 of second group of vertical strip pixel 620, inferior pixel R623 are filled with correct display-object voltage 3V.And then, the 4th group of signal begins to send a high level signal to open the grid of the 4th row time pixel to the grid of the 4th row time pixel; The rest may be inferred, just can in a frame, realize overdriving function.

With reference to figure 7, Fig. 7 is the partial schematic diagram of the 4th preferred embodiment of the liquid crystal indicator of the utility model.Fig. 7 is the function of overdriving that under the condition of row drivings (Column Driving), realizes the liquid crystal indicator of the utility model equally.Vertical strip pixel is made up of the inferior pixel (inferior pixel R, inferior pixel G and inferior pixel B) of three vertical strips.Inferior pixel R, inferior pixel G and inferior pixel B are arranged in order in the horizontal direction.The vertical strip pixel 720 with second of the first vertical strip pixel 710 forms a line, and the vertical strip pixel 740 with the 4th of the 3rd vertical strip pixel 730 forms a line, and the rest may be inferred.Data line designs according to Flip pixel; Same data line connects each vertical strip pixel of vertical direction; The inferior pixel that inferior pixel that odd pixel is identical on the vertical direction (inferior pixel R, inferior pixel G and inferior pixel B one of them) and even pixel are identical (inferior pixel R, inferior pixel G and inferior pixel B one of them) is connected same data line, and wherein the polarity of the inferior pixel of odd pixel differs from the polarity of the inferior pixel of even pixel.Particularly; The inferior pixel B 751 of the vertical strip pixel 750 with the 5th of inferior pixel G732 of inferior pixel B the 711, the 3rd vertical strip pixel 730 of the vertical strip pixel 710 with first of data line 1 couples; The inferior pixel G752 of the vertical strip pixel 750 with the 5th of inferior pixel R733 of the inferior pixel G712 of the vertical strip pixel 710 with first of data line 2, the 3rd vertical strip pixel 730 couples; The inferior pixel R753 of the vertical strip pixel 750 with the 5th of inferior pixel B 741 of the inferior pixel R713 of the vertical strip pixel 710 with first of data line 3, the 4th vertical strip pixel 740 couples, and the rest may be inferred.Concentric line 1, concentric line 2 and concentric line 3 are arranged by the direction setting vertical with data line and with the form of array.In the present embodiment; Concentric line couples with the inferior pixel that staggers mutually of adjacent in vertical direction two vertical strip pixels; Particularly; The inferior pixel G732 of the vertical strip pixel 730 with the 3rd of inferior pixel G722 of the inferior pixel B 711 of the vertical strip pixel 710 with first of concentric line 1, the vertical strip pixel 720 with second of inferior pixel R713 and the inferior pixel B 741 of the 4th vertical strip pixel 740, inferior pixel R743 couple; Inferior pixel B 761, the inferior pixel R763 of the inferior pixel G752 of the vertical strip pixel 750 with the 5th of inferior pixel G742 of the inferior pixel B 731 of the vertical strip pixel 730 with the 3rd of concentric line 2, the vertical strip pixel 740 with the 4th of inferior pixel R733 and sextuple vertical bar shape pixel 760 couple, and the rest may be inferred for concentric line 3.The vertical strip pixel with second of the first vertical strip pixel 710 720 is adjacent, and the vertical strip pixel 720 adjacent inferior pixels with second of the first vertical strip pixel 710 have antipole property; The vertical strip pixel with the 3rd of the first vertical strip pixel 710 730 is adjacent, and the vertical strip pixel 730 adjacent inferior pixels with the 3rd of the first vertical strip pixel 710 have antipole property.With reference to figure 7 and Fig. 4; First group of signal sent high level signal to open the grid of the first row time pixel to the grid of the first row time pixel (comprising the inferior pixel B 711 of the first vertical strip pixel 710, inferior pixel G712, inferior pixel R713 and the inferior pixel B 721 of the second vertical strip pixel 720, inferior pixel G722, inferior pixel R723); Before letting the interior charging voltage of the first row time pixel (comprising the inferior pixel B 711 of the first vertical strip 710, inferior pixel G712, inferior pixel R713 and the inferior pixel B 721 of the second vertical strip 720, inferior pixel G722, inferior pixel R723) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to carry out precharge to the first row time pixel by 1V.When first group of signal when the grid of the first row time pixel sends high level signal; Because the inferior pixel G722 of inferior pixel B 711, inferior pixel R713 and the second vertical strip pixel 720 of the first vertical strip pixel 710 all is positive polarity data line 8V; The common electrode voltage that cooperates concentric line 1 by the 5V modulation to low-voltage 0V, to the inferior pixel G722 preliminary filling one 8V high voltage of the inferior pixel B 711 of the first vertical strip pixel 710, inferior pixel R713 and the second vertical strip pixel 720.Simultaneously; The inferior pixel B 721 and time pixel R723 of the vertical strip pixel 720 with second of inferior pixel G712 of the first vertical strip pixel 710 are negative polarity data line 2V; The common electrode high voltage 10V that cooperates concentric line 0 reaches inferior pixel R723 preliminary filling one 8V high voltage to the inferior pixel B 721 of the vertical strip pixel 720 with second of inferior pixel G712 of the first vertical strip pixel 710.Then, first group of signal sent low voltage signal to close the grid of the first row time pixel to the first row time pixel; Second group of signal sent high level signal to open the grid of secondary series time pixel to the grid of secondary series time pixel (comprising the inferior pixel B 731 of the 3rd vertical strip pixel 730, inferior pixel G732, inferior pixel R733 and the inferior pixel B 741 of the 4th vertical strip pixel 740, inferior pixel G742, inferior pixel R743); Before letting the interior charging voltage of secondary series time pixel (comprising the inferior pixel B 731 of the 3rd vertical strip 730, inferior pixel G732, inferior pixel R733 and the inferior pixel B 741 of the 4th vertical strip 740, inferior pixel G742, inferior pixel R743) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to carry out precharge to secondary series time pixel by 1V.When second group of signal when the grid of secondary series time pixel sends high level signal; Because the inferior pixel G732 of the 3rd vertical strip pixel 730 and the inferior pixel B 741 of the 4th vertical strip pixel 740, inferior pixel R743 all are positive polarity data line 8V; Common electrode low-voltage 0V when cooperating the common electrode voltage of concentric line 1 to keep to open with first group of signal is to the inferior pixel G732 of the 3rd group of vertical strip pixel 730 and the inferior pixel B 741 of the 4th vertical strip pixel 740, inferior pixel R743 preliminary filling one 8V high voltage.Simultaneously; The inferior pixel B 731 of the 3rd group of vertical strip pixel 730, inferior pixel R733 are negative polarity data line 2V with the inferior pixel G742 of the 4th group of vertical strip pixel 740; The common electrode voltage that cooperates concentric line 2 by the 5V modulation to high voltage 10V, to the inferior pixel B 731 of the 3rd group of vertical strip pixel 730, inferior pixel R733 inferior pixel G742 preliminary filling one 8V high voltage with the 4th group of vertical strip pixel 740.And then, second group of signal sent low voltage signal to close the grid of secondary series time pixel to secondary series time pixel; The 3rd group of signal sent high level signal to open the grid of the 3rd row time pixel to the grid of the 3rd row time pixel (the inferior pixel B 761, inferior pixel G762, the inferior pixel R763 that comprise the inferior pixel B 751 of the 5th vertical strip pixel 750, inferior pixel G752, inferior pixel R753 and sextuple vertical bar shape pixel 760); Before letting the interior charging voltage of the 3rd row time pixel (comprising the inferior pixel B 751 of the 5th vertical strip 750, inferior pixel G752, inferior pixel R753 and the inferior pixel B 761 of sextuple vertical bar shape 760, inferior pixel G762, inferior pixel 763) become 3V, utilize the charging voltage 8V of data line 8V and common electrode modulating signal 0V or data-signal 2V and common electrode modulating signal 10V to come to carry out precharge to the 3rd row time pixel by 1V.When the 3rd group of signal when the grid of the 3rd row time pixel sends high level signal; Because the inferior pixel G762 of inferior pixel B 751, inferior pixel R753 and the sextuple vertical bar shape pixel 760 of the 5th vertical strip pixel 750 all is positive polarity data line 8V; The common electrode voltage that cooperates concentric line 3 by the 5V modulation to low-voltage 0V, to a 8V high voltage on the inferior pixel G762 preliminary filling of the inferior pixel B 751 of the 5th vertical strip pixel 750, inferior pixel R753 and sextuple vertical bar shape pixel 760.Simultaneously; The inferior pixel G752 of the 5th vertical strip pixel 750 is negative polarity data line 2V with the inferior pixel B 761 and time pixel R763 of the 6th group of vertical strip pixel 760; Cooperate the common electrode electricity of concentric line 2 to keep the common electrode high voltage 10V when second group of signal opened together, to the inferior pixel G752 of the 5th group of vertical strip pixel 750 and the inferior pixel B 761 and time pixel R763 preliminary filling one 8V high voltage of sextuple vertical bar shape pixel 760.When the 3rd group of signal when the grid of the 3rd row time pixel sends high level signal; First group of signal also can be sent high level signal to the grid of the first row time pixel; Because the inferior pixel G722 of inferior pixel B 711, inferior pixel R713 and second group of vertical strip pixel 720 of first group of vertical strip pixel 710 all is positive polarity data line 8V; Cooperate the common electrode voltage of concentric line 1 this moment to be returned to normal common electrode voltage 5V, just inferior pixel B 711 to first group of vertical strip pixel 710 reaches, the inferior pixel G722 of inferior pixel R713 and second group of vertical strip pixel 720 fills correct display-object voltage 3V with.Simultaneously; The inferior pixel G712 of first group of vertical strip pixel 710 and the inferior pixel B 721 of second group of vertical strip pixel 720, inferior pixel R723 are negative polarity data line 2V; Cooperate the common electrode voltage of concentric line 0 to be returned to normal common electrode voltage 5V, the inferior pixel G712 of first group of vertical strip pixel 710 and the inferior pixel B 721 of second group of vertical strip pixel 720, inferior pixel R723 are filled with correct display-object voltage 3V.And then, the 4th group of signal begins to send a high level signal to open the grid of the 4th row time pixel to the grid of the 4th row time pixel; The rest may be inferred, just can in a frame, realize overdriving function.

Overall view the foregoing description, the signal driving method of the liquid crystal indicator of the utility model may further comprise the steps: the turntable driving module produces sweep signal and this sweep signal is sent to sweep trace; The data-driven module produces data-signal and this data-signal is sent to data line; Sweep trace sends at least one time pixel in the pixel with this sweep signal, and sweep signal scans by leu the inferior pixel that is in delegation; Data line sends at least one time pixel in the pixel with this data line, and data line carries out precharge to this time pixel before in this data-signal being input to time pixel.In addition, said method can also may further comprise the steps: the polarity of the inferior pixel that the concentric line basis couples with it applies high voltage or low-voltage to this time pixel.

In sum; Though the utility model discloses as above with preferred embodiment; But above-mentioned preferred embodiment is not that those of ordinary skill in the art is in spirit that does not break away from the utility model and scope in order to restriction the utility model; All can do various changes and retouching, so the protection domain of the utility model is as the criterion with the scope that claim defines.

Claims

1. a liquid crystal indicator is characterized in that, comprising:

Be used to produce sweep signal and said sweep signal sent to the turntable driving module of said sweep trace;

Be used to produce data-signal and said data-signal sent to the data-driven module of said data line;

Thin-film transistor display panel which is provided with pixel, and said pixel comprises time pixel R, inferior pixel G and inferior pixel B;

Its sweep signal is to being in the inferior pixel of the delegation sweep trace by leu time scanning, and the inferior pixel of at least one in said sweep trace and the said pixel couples;

Be used for before said data-signal being input to said pixel, said pixel input high voltage being carried out precharge; And input is used for the data line of the signal of display image to said pixel again after precharge, and the inferior pixel of at least one in said data line and the said pixel couples.

2. liquid crystal indicator according to claim 1; It is characterized in that; Said liquid crystal indicator comprises that also the polarity that is used for said the pixel that basis couples with it applies the concentric line of high voltage or low-voltage to said pixel, and time pixel of at least one in said concentric line and the said pixel couples.

3. liquid crystal indicator according to claim 2 is characterized in that, three said pixels of said pixel are arranged by the direction parallel with the direction of scanning of said sweep signal and arranged.

4. liquid crystal indicator according to claim 2 is characterized in that, three said pixels of said pixel are arranged by the direction vertical with the direction of scanning of said sweep signal and arranged.

5. according to claim 3 or 4 described liquid crystal indicators, it is characterized in that said concentric line is vertical to the direction that inferior pixel scans with said sweep signal.

6. liquid crystal indicator according to claim 2 is characterized in that, adjacent two pixels of two adjacent said pixels have antipole property.

7. liquid crystal indicator according to claim 6 is characterized in that, the inferior pixel that the said concentric line of each bar is identical with polarity couples.

8. liquid crystal indicator according to claim 6 is characterized in that, the inferior pixel that the said data line of each bar is identical with polarity couples.