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CN101312020B - Liquid crystal display and its driving method - Google Patents

Liquid crystal display and its driving method Download PDF

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Publication number
CN101312020B
CN101312020B CN2007101092477A CN200710109247A CN101312020B CN 101312020 B CN101312020 B CN 101312020B CN 2007101092477 A CN2007101092477 A CN 2007101092477A CN 200710109247 A CN200710109247 A CN 200710109247A CN 101312020 B CN101312020 B CN 101312020B
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data voltage
pixel
sub
value
voltage
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CN101312020A (en
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谢明峰
谢志勇
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Chi Mei Optoelectronics Corp
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Chi Mei Optoelectronics Corp
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Abstract

The invention discloses a liquid crystal display and a driving method thereof, which at least comprise a first sub-pixel and a second sub-pixel with unequal areas, wherein each sub-pixel respectively displays the brightness corresponding to a gray-scale value according to a positive polarity data voltage or a negative polarity data voltage, and when the gray-scale values of the first sub-pixel and the second sub-pixel are the same, the average value of the positive polarity data voltage value and the negative polarity data voltage value of the first sub-pixel is not equal to the average value of the positive polarity data voltage value and the negative polarity data voltage value of the second sub-pixel. The invention can solve the problem of picture flicker generated when the polarity of the sub-pixel is reversed under the condition that the area or the shape of the sub-pixel is different.

Description

Liquid Crystal Display And Method For Driving
Technical field
The invention relates to a kind of Liquid Crystal Display And Method For Driving, and particularly wear the Liquid Crystal Display And Method For Driving of voltage (feed-through voltage) relevant for a kind of compensation feedback.
Background technology
In conventional liquid crystal; As if all identical words of each sub-pixel area in the display unit; Then under the situation that receives identical data voltage; The grid leak utmost point stray capacitance and the value of storage capacitors of the liquid crystal capacitance of each sub-pixel, transistor switch are identical haply, wear voltage (feed-through voltage) value and have identical feedback.Because the size of liquid crystal capacitance and received data voltage, and the area of pixel or shape have relation, so area that ought two subpixels or shape are not simultaneously, magnitude of voltage is worn in the feedback of two subpixels will difference.
Please with reference to Fig. 1, it illustrates the equivalent circuit diagram of the parton pixel of conventional liquid crystal.In this sub-pixel driving circuit, suppose that sub-pixel A is different with area or the shape of sub-pixel B.So when sub-pixel A receives identical data voltage with sub-pixel B, the liquid crystal capacitance C of sub-pixel A LclLiquid crystal capacitance C with sub-pixel B 1c2Inequality.And because sub-pixel A is identical with the transistor design of sub-pixel B, so the stray capacitance C between the grid of sub-pixel A and drain electrode Gd1Grid leak utmost point stray capacitance C with sub-pixel B Gd2Then can be identical, and the storage capacitors C of sub-pixel A S1, with the storage capacitors C of sub-pixel B S2Also be designed to identical.
Now further specify feedback with the equivalent electrical circuit of the sub-pixel A of Fig. 1 and wear voltage.Please refer to Fig. 1, in the moment that gate line produces change in voltage, because the cause of transistor switch T1 coupling capacitance makes sub-pixel A produce feedback and wear effect, and make the voltage on the pixel electrode squint that its side-play amount is feedback and wears voltage downwards.When the gate line activation, the grid voltage of sub-pixel A is by V GlRise to V GhThe time, this feedback is worn voltage and is (V Gh-V Gl) * C Gd1/ (C S1+ C Gd1+ C Lcl).Formula can be known thus, and voltage and liquid crystal capacitance, grid leak utmost point stray capacitance are worn in feedback, storage capacitors is relevant.When so the area of group pixel A and sub-pixel B is inequality, the liquid crystal capacitance of sub-pixel A and sub-pixel B, grid leak utmost point stray capacitance, storage capacitors are also inequality.Therefore, to wear voltage also inequality for the feedback that produced of sub-pixel A and sub-pixel B.So, when input corresponded to positive polarity data voltage or the negative polarity data voltage of same gray level value simultaneously, sub-pixel A and sub-pixel B will produce different brightness.
Please refer to Fig. 2, it illustrates is one of the drive waveforms figure example of sub-pixel A and sub-pixel B.The longitudinal axis of this oscillogram is the expression magnitude of voltage, and transverse axis is the express time value.Wherein waveform 201 is the portion waveshape of scanning-line signal, and waveform 202 is for being sent to the segment voltage waveform of sub-pixel A and B by data line.Waveform 203 and 204 is respectively the voltage waveform of the pixel electrode of sub-pixel A and B.Can know by waveform 203; In the first image time F1; The group pixel A receives after positive polarity data voltage (Data voltage) V+, because scanning voltage is reduced to the caused feedback of low level by high levle and wears effect, voltage Δ V is worn in first feedback of will squinting downwards of the voltage of the pixel electrode of sub-pixel A F1And transfer voltage V to A+And in the first image time F1, the group pixel B receives after the identical positive polarity data voltage V+, because effect is worn in feedback, voltage Δ V is worn in second feedback of will squinting downwards of the voltage of the pixel electrode of sub-pixel B F2And transfer V to B+
Likewise, in the second image time F2, the group pixel A receives after the negative polarity data voltage V-, because scanning voltage is reduced to the caused feedback of low level by high levle and wears effect, voltage Δ V is worn in first feedback of will squinting downwards of the voltage of the pixel electrode of sub-pixel A F1And transfer voltage V to A-And in the second image time F2, the group pixel B receives after the identical negative polarity data voltage V-, because effect is worn in feedback, voltage Δ V is worn in second feedback of will squinting downwards of the voltage of the pixel electrode of sub-pixel B F2And transfer V to B-
Because the area of sub-pixel A and sub-pixel B is unequal, so voltage Δ V is worn in first feedback F1Be not equal to second feedback and wear voltage Δ V F2Suppose Δ V A1Be voltage V A+With common voltage V ComThe absolute value of voltage difference, Δ V B1Be voltage V A-With common voltage V ComThe absolute value of voltage difference, Δ V A2Be voltage V B+With common voltage V ComThe absolute value of voltage difference, Δ V B2Be voltage V B-With common voltage V ComThe absolute value of voltage difference.When voltage Δ V is worn in first feedback to sub-pixel A F1Positive polarity data voltage and the negative polarity data voltage of adjustment in order to drive all sub-pixels makes the pixel electrode of sub-pixel A through positive polarity pixel voltage and two the voltage symmetry common voltage Vs of negative polarity pixel voltage of feedback after wearing effect ComThe time, sub-pixel B is after receiving this adjusted positive polarity data voltage and negative polarity data voltage, and the pixel electrode of sub-pixel B is presented the permanent asymmetric common voltage V of voltage after wearing effect in process ComSo; To make the group pixel B when doing reversal of poles; If receive the words of the positive polarity data voltage and the negative polarity data voltage that correspond to the same gray level value; Because effects is worn in feedback, two voltages that correspond to positive polarity pixel voltage and negative polarity pixel voltage of the pixel electrode of sub-pixel B will be asymmetric with common voltage V Com, make sub-pixel B show different brightness, and produce flicker.
Summary of the invention
The object of the invention is to provide a kind of Liquid Crystal Display And Method For Driving exactly, to solve under sub-pixel area or variform situation the problem of the film flicker that sub-pixel is produced when doing reversal of poles.
According to the object of the invention, a kind of LCD is proposed, comprise a data driver, several data lines, several sweep traces, one scan driver and several display units.Data line is to electrically connect with data driver.Scanner driver is in order to activation sweep trace in regular turn.Each display unit comprises one first sub-pixel and one second sub-pixel at least.First sub-pixel is to be controlled by one of sweep trace, transmits and next one first positive polarity data voltage or one first negative polarity data voltage to receive by one of data line, to produce the brightness that corresponds to one first GTG value or one second GTG value respectively.One second sub-pixel is to be controlled by one of sweep trace; The area of first sub-pixel and second sub-pixel is unequal or shape is inequality; Second sub-pixel transmits and next one second positive polarity data or one second negative polarity data voltage in order to receive by one of data line, to produce the brightness that corresponds to one the 3rd GTG value or one the 4th GTG value respectively.Wherein, when first to fourth GTG value all equated, the mean value of the first positive polarity data voltage and the first negative polarity data voltage was the mean value that is not equal to the second positive polarity data voltage and the second negative polarity data voltage.
According to the object of the invention, a kind of LCD is proposed, comprise a data driver, several data lines, several sweep traces, one scan driver and several display units.Data line is to electrically connect with data driver.Scanner driver is in order to activation sweep trace in regular turn.Each display unit comprises one first sub-pixel and one second sub-pixel at least.First sub-pixel is to be controlled by one of sweep trace; First sub-pixel transmits and next one first positive polarity data voltage or one first negative polarity data voltage in order to receive by one of data line, to produce the brightness that corresponds to one first GTG value or one second GTG value respectively.Second sub-pixel is to be controlled by one of sweep trace; The area of first sub-pixel and second sub-pixel is unequal or shape is inequality; Second sub-pixel transmits and next one second positive polarity data voltage or one second negative polarity data voltage in order to receive by one of data line, to produce the brightness that corresponds to one the 3rd GTG value or one the 4th GTG value respectively.Wherein, when first to fourth GTG value in fact all equated, if the first positive polarity data voltage equals the second positive polarity data voltage, then the first negative polarity data voltage was to be not equal to the second negative polarity data voltage.
According to the object of the invention, a kind of driving method is proposed, be used for a LCD, this LCD has several display units and several data lines.Each display unit comprises one first sub-pixel and one second sub-pixel at least, and the area of first sub-pixel is the area that is not equal to second sub-pixel.First sub-pixel transmits and next one first positive polarity data voltage or one first negative polarity data voltage in order to receive by one of data line, to produce the brightness that corresponds to one first GTG value or one second GTG value respectively.Second sub-pixel transmits and next one second positive polarity data voltage or one second negative polarity data voltage in order to receive by one of data line, to produce the brightness that corresponds to one the 3rd GTG value or one the 4th GTG value respectively.This data voltage sets method comprises: voltage (feed-through voltage) the generation first positive polarity data voltage is worn in one first feedback that corresponds to the first GTG value according to first sub-pixel, and the first positive polarity data voltage is inputed to first sub-pixel.Then, one second feedback that corresponds to the second GTG value according to first sub-pixel is worn voltage and is produced the first negative polarity data voltage, and the first negative polarity data voltage is inputed to first sub-pixel.Next, one the 3rd feedback that corresponds to the 3rd GTG value according to second sub-pixel is worn voltage and is produced the second positive polarity data voltage, and the second positive polarity data voltage is inputed to second sub-pixel.At last, one the 4th feedback that corresponds to the 4th GTG value according to second sub-pixel is worn voltage and is set the second negative polarity data voltage, and the second negative polarity data voltage is inputed to second sub-pixel.Wherein, when first to fourth GTG value in fact all equated, the mean value of the first positive polarity data voltage and the first negative polarity data voltage was not equal to the mean value of the second positive polarity data voltage and the second negative polarity data voltage.
Because the present invention has adopted above technical scheme; Each display unit of LCD has several areas or variform sub-pixel; When desiring to drive a plurality of sub-pixel of different area or shape with identical GTG value; For different sub-pixel, wear voltage according to the pairing feedback of these sub-pixels respectively and come to set respectively different a plurality of positive polarity data voltages and different a plurality of negative polarity data voltages.So, can remove the film flicker problem effectively.
Description of drawings
For letting above-mentioned purpose of the present invention, characteristic and the advantage can be more obviously understandable, below specially lift a preferred embodiment, and cooperate appended graphicly, elaborate as follows:
Fig. 1 is the equivalent circuit diagram that illustrates the parton pixel of conventional liquid crystal.
Fig. 2 is the drive waveforms figure that illustrates two areas or shape sub-pixel inequality.
Fig. 3 is the synoptic diagram that illustrates the LCD of part present embodiment.
Fig. 4 is first sub-pixel and the positive polarity data voltage that second sub-pixel corresponds to each GTG value and the table of comparisons of negative polarity data voltage of display unit that illustrates the LCD of present embodiment.
First sub-pixel 304 and second sub-pixel 305 that Fig. 5 illustrates Fig. 4 receives and corresponds to one of the positive polarity of GTG value 0 and drive waveforms figure that the negative polarity data voltage is produced example.
Fig. 6 A, 6B, 6C illustrate the various different configuration modes of sub-pixel of the display unit of LCD of the present invention respectively.
The main element symbol description is following among the figure:
201,510: the scanning-line signal waveform
202: the voltage waveform that is sent to sub-pixel A and B by data line
203: the voltage waveform of the pixel electrode of sub-pixel A
204: the voltage waveform of the pixel electrode of sub-pixel B
301: data driver
302: scanner driver
304: the first sub-pixels
305: the second sub-pixels
Sub-pixel 304 received one of the positive polarity data voltage of corresponding GTG 0 and the oscillogram of negative polarity data voltage example in 520: the first.
Sub-pixel 305 received one of the positive polarity data voltage of corresponding GTG 0 and the oscillogram of negative polarity data voltage example in 530: the second.
540: the segment voltage waveform that is sent to first sub-pixel and second sub-pixel by data line.
620,630,640,303: display unit
621,622,631,632: sub-pixel
641: red sub-pixel
642: green sub-pixels
643: blue subpixels
Embodiment
See also Fig. 3, Fig. 3 is the synoptic diagram that illustrates the LCD of part present embodiment.LCD 300 comprises a plurality of display unit 303, a data line DT, sweep trace SC1 and SC2, one scan driver 302 and a data driver 301.Display unit 303 comprises that the area of first sub-pixel 304 and second sub-pixel, 305, the first sub-pixels is greater than second sub-pixel.
Please with reference to Fig. 4, its first sub-pixel 304 and second sub-pixel 305 of display unit 303 that illustrates the LCD 400 of present embodiment corresponds to the positive polarity data voltage of each GTG value and the table of comparisons of negative polarity data voltage.Please refer to Fig. 4, the positive polarity data voltage of GTG value 0,64,128,192 and 255 pairing first sub-pixels 304 is respectively V a, V b, V c, V dWith V eThe negative polarity data voltage of first sub-pixel 304 that a little therewith GTG values are corresponding then is respectively 2 (V Com+ Δ V 0)-V a, 2 (V Com+ Δ V 64)-V b, 2 (V Com+ Δ V 128)-V c, 2 (V Com+ Δ V 192)-V dWith 2 (V Com+ Δ V 255)-V eThe positive polarity data voltage of GTG value 0,64,128,192 and 255 pairing second sub-pixels 305 is respectively V a', V b', V c', V d' and V e'.The negative polarity data voltage of first sub-pixel 304 that a little therewith GTG values are corresponding then is respectively 2 (V Com+ Δ V 0')-V a', 2 (V Com+ Δ V 64')-V b', 2 (V Com+ Δ V 128')-V c', 2 (V Com+ Δ V 192')-V d' and 2 (V Com+ Δ V 255')-V e'.
Wherein, V ComBe the common voltage value of first sub-pixel 304 and second sub-pixel 305, Δ V 0, Δ V 64, Δ V 128, Δ V 192With Δ V 255Be respectively first sub-pixel 304 and showing GTG value 0,64,128,192 and at 255 o'clock, voltage is worn in pairing feedback.Δ V 0', Δ V 64', Δ V 128', Δ V 192' and Δ V 255' be respectively second sub-pixel 305 and showing GTG value 0,64,128,192 and at 255 o'clock, voltage is worn in pairing feedback.
Owing to the liquid crystal capacitance of sub-pixel can change along with the voltage that is applied increases; So the sub-pixel of equal area or shape is worn voltage for the feedback of different GTG brightness also can be different, so present embodiment also is made as difference with pairing positive polarity of the sub-pixel of equal area or shape or negative polarity data voltage.So, pairing positive polarity of each GTG value or negative polarity data voltage will be different.With first sub-pixel 304 is example, and the positive polarity data voltage of first sub-pixel, 304 corresponding different GTG values and the mean value of negative polarity data voltage are (V Com+ Δ V 0), (V Com+ Δ V 64), (V Com+ Δ V 128), (V Com+ Δ V 192) and (V Com+ Δ V 255), that is the mean value of the positive polarity data voltage of first sub-pixel, 304 corresponding different GTG values and negative polarity data voltage is unequal.
The sub-pixel that the display unit of the LCD of working as present embodiment is discussed now receives positive polarity data voltage or negative polarity data voltage, feedback is worn the compensating action of voltage.Now with first sub-pixel 304 of Fig. 4 when carrying out reversal of poles, receiving the positive polarity data voltage and the negative polarity data voltage that correspond to GTG value 0 is that example is to explain it.Please with reference to Fig. 5, its first sub-pixel 304 and second sub-pixel 305 that illustrates Fig. 4 receives and corresponds to one of the positive polarity of GTG value 0 and drive waveforms figure that the negative polarity data voltage is produced example.Wherein waveform 510 is the portion waveshape of scanning-line signal, and waveform 540 is for being sent to the segment voltage waveform of first sub-pixel 304 and second sub-pixel 305 by data line.Waveform 520 is to be the positive polarity data voltage V that first sub-pixel 304 receives corresponding GTG 0 aWith negative polarity data voltage 2 (V Com+ Δ V 0)-V aOne of oscillogram example.At the first image time F1, because effect is worn in feedback, when first sub-pixel 304 receives positive polarity data voltage V aAfter, when the gate line signal of correspondence is changed into low level by high levle, the voltage of the pixel electrode of first sub-pixel 304 will transfer V to a-Δ V 0And at image time F2, when first sub-pixel 304 receives negative polarity data voltage 2 (V Com+ Δ V 0)-V aAfter, when the gate line signal of correspondence is changed into low level by high levle, the voltage of the pixel electrode of first sub-pixel 304 will transfer 2 (V to Com+ Δ V 0)-V a-Δ V 0In first sub-pixel 304, correspond to GTG value 0 positive polarity data voltage and negative polarity data voltage the mean value of voltage of pixel electrode be V ComThat is, when first sub-pixel 304 when carrying out reversal of poles, input has compensated the feedback that corresponds to GTG value 0 and has worn voltage Δ V 0Positive polarity data voltage and negative polarity data voltage to the first sub-pixel 304 after, the pixel voltage that makes the sub-pixel 304 of winning correspond to the pixel electrode of positive polarity data voltage and negative polarity data voltage still is symmetrical in common voltage V after wearing effect through feedback Com, thereby demonstrate same brightness.So, when first sub-pixel in the different pictures time, when driving, the situation that does not have flicker is taken place with the data voltage of the opposed polarity that corresponds to the same gray level value.
Waveform 530 is the positive polarity data voltage V that second sub-pixel 305 receives corresponding GTG 0 a' and negative polarity data voltage 2 (V Com+ Δ V 0')-V a' one of oscillogram.At the second image time F2, in second sub-pixel 305 in receiving corresponding positive polarity data voltage V a' and negative polarity data voltage 2 (V Com+ Δ V 0')-V a' afterwards, the pixel voltage of the pixel electrode of second sub-pixel 305 still can be symmetrical in common voltage Vcom after wearing effect through feedback characteristic is identical with above-mentioned first sub-pixel 304, repeats no more at this.
Other characteristics of positive-negative polarity data voltage of sub-pixel of the LCD of present embodiment below are detailed.The table of comparisons by Fig. 4 can be known; Because first sub-pixel 304 and second sub-pixel 305 correspond to the feedback of same gray level value and wear the voltage difference; So present embodiment is made as difference with the positive polarity data voltage that first sub-pixel 304 and second sub-pixel 305 correspond to the same gray level value, and reverse voltage also is made as difference.With GTG value 0 is example, and first sub-pixel 304 corresponds to the positive polarity data voltage of GTG value 0 and the mean value (V of negative polarity data voltage Com+ Δ V 0), be not equal to second sub-pixel 305 and correspond to the positive polarity data voltage of GTG value 0 and the mean value (V of negative polarity data voltage Com+ Δ V 0').Likewise; First sub-pixel 304 corresponds to the positive polarity data voltage of GTG value 64,128,192,255 and the mean value of negative polarity data voltage, is not equal to second sub-pixel 305 respectively and corresponds to the positive polarity data voltage of GTG value 64,128,192,255 and the mean value of negative polarity data voltage.
And can be pushed away by the table of comparisons of Fig. 4, be example with GTG value 0, if the positive polarity data voltage V of second sub-pixel, 305 corresponding GTG values 0 a' positive polarity data voltage V when equaling the corresponding GTG value 0 of first sub-pixel 304 a, then the negative polarity data voltage of second sub-pixel 305 can not be the 2 (Vs identical with first sub-pixel 304 Com+ Δ V 0)-V a, but 2 (V Com+ Δ V 0')-V aLikewise; If the positive polarity data voltage that first sub-pixel 304 corresponds to certain GTG value equals second sub-pixel, the 305 correspondences positive polarity data voltage of GTG value so far, then first sub-pixel, 304 correspondences so far the negative polarity data voltage of GTG value be not equal to second sub-pixel, the 305 correspondences negative polarity data voltage of GTG value so far.
Moreover, also can learn by the table of comparisons of Fig. 4, be example with GTG value 0, if the positive polarity data voltage V of second sub-pixel, 305 corresponding GTG values 0 a' equal the positive polarity data voltage V of first sub-pixel, 304 corresponding GTG values 64 b, then the negative polarity data voltage of second sub-pixel 305 can not be 2 (the Vcom+ Δ Vs identical with first sub-pixel 304 64)-V b, but 2 (Vcom+ Δ V 0')-V bLikewise; If corresponding to the positive polarity data voltage of certain GTG value x, first sub-pixel 304 equals the positive polarity data voltage value that second sub-pixel 305 corresponds to another GTG value y; Then the first sub-pixel 304 negative polarity data voltage that corresponds to GTG value x is not equal to the negative polarity data voltage value that second sub-pixel 305 corresponds to GTG value y, and wherein GTG value x is not equal to GTG value y.
The LCD that the embodiment of the invention proposed, its display unit comprise unequal or variform one first sub-pixel of area and one second sub-pixel.First sub-pixel is to receive respectively according to the feedback of corresponding each GTG value to wear positive polarity data voltage and the negative polarity data voltage that voltage sets with second sub-pixel; When making the sub-pixel of winning do reversal of poles; If what receive is positive polarity data voltage and the negative polarity data voltage that corresponds to the same gray level value, then the brightness that shown of first sub-pixel is identical.Likewise, other sub-pixels of LCD also can reach the effect identical with first sub-pixel.
The LCD 300 that present embodiment proposed, wherein display unit 303 comprises one first sub-pixel 304 and one second sub-pixel 305.In practical application, the display unit of LCD is not limited to only comprise two area different sub-pixel, and the configuration mode of the sub-pixel in the display unit of LCD can also be made different designs according to demand.Therefore, LCD of the present invention can also be other LCDs with sub-pixel of difformity or area.
Fig. 6 A, 6B, 6C illustrate the various different configuration modes of sub-pixel of the display unit of LCD of the present invention.Please refer to Fig. 6 A, each display unit of this LCD includes two different sub-pixels of area.Display unit 620 with wherein is an example, and display unit 620 comprises two sub-pixels 621 and 622, and wherein the area of sub-pixel 621 is greater than sub-pixel 622, and the sub-pixel in the adjacent display cell is to arrange with interlace mode.Fig. 6 B is another arrangement plan of sub-pixel that illustrates the display unit of LCD of the present invention, and each display unit of this LCD all comprises two shapes sub-pixel inequality.With display unit 630 wherein is example, and display unit 630 comprises two sub-pixels 631 and 632, and the shape of this two sub-pixel is inequality.Fig. 6 C is another arrangement plan of sub-pixel that illustrates the display unit of LCD of the present invention; Each display unit of this LCD all comprises a red sub-pixel, a green sub-pixels and a blue subpixels; The area of red sub-pixel is greater than green sub-pixels, and the area of green sub-pixels is greater than blue subpixels.With display unit 640 wherein is example; Display unit 640 comprises red sub-pixel 641, green sub-pixels 642 and blue subpixels 643; Wherein the area of red sub-pixel 641 is greater than green sub-pixels 642, and the area of green sub-pixels 642 is greater than blue subpixels 643.The present invention is also applicable to for compensate for chromatic aberration a display unit being divided into the LCD that two subpixels are come show image.
For any LCD; If the area or the shape of the sub-pixel in its display unit are inequality; And positive polarity data voltage that sub-pixel received and negative polarity data voltage; Be to wear voltage according to the feedback of corresponding each GTG value to set, then this LCD is to fall within the scope of the present invention.The present invention can solve effectively under the area or variform situation of a plurality of sub-pixels of a display unit, sub-pixel when doing reversal of poles and correspond to the brightness of same gray level value with demonstration, the problem of the film flicker that is produced.Therefore, the present invention can promote the quality of the image that is shown effectively.
In sum, though the present invention discloses as above with a preferred embodiment, so it is not in order to limit the present invention.Have common knowledge the knowledgeable in the technical field under the present invention, do not breaking away from the spirit and scope of the present invention, when doing various changes and retouching.Therefore, protection scope of the present invention is as the criterion with what claims scope defined.

Claims (8)

1.一种液晶显示器，其特征在于，包括：1. A liquid crystal display, characterized in that, comprising: 一数据驱动器；a data driver; 多条数据线，所述数据线与所述数据驱动器电性连接；a plurality of data lines, the data lines are electrically connected to the data driver; 多条扫描线；Multiple scan lines; 一扫描驱动器，用以依序致能所述扫描线；以及a scan driver for sequentially enabling the scan lines; and 多个显示单元，各显示单元至少包括：A plurality of display units, each display unit at least includes: 一第一子像素，是由所述扫描线之一所控制，该第一子像素用以接收由所述数据线之一传送而来的一第一正极性数据电压或一第一负极性数据电压，以分别产生对应至一第一灰阶值或一第二灰阶值的亮度；及A first sub-pixel is controlled by one of the scanning lines, and the first sub-pixel is used to receive a first positive polarity data voltage or a first negative polarity data transmitted from one of the data lines voltages to generate luminance corresponding to a first grayscale value or a second grayscale value, respectively; and 一第二子像素，是由所述扫描线之一所控制，所述第一子像素与该第二子像素的面积不相等或形状不相同，该第二子像素用以接收由所述数据线之一传送而来的一第二正极性数据电压或一第二负极性数据电压，以分别产生对应至一第三灰阶值或一第四灰阶值的亮度；A second sub-pixel is controlled by one of the scanning lines, the first sub-pixel and the second sub-pixel have different areas or shapes, and the second sub-pixel is used to receive the data from the A second positive polarity data voltage or a second negative polarity data voltage transmitted from one of the lines to generate brightness corresponding to a third gray scale value or a fourth gray scale value; 其中，所述第一正极性数据电压值是依据所述第一子像素对应至所述第一灰阶值的一第一馈穿电压值设定，所述第一负极性数据电压值是依据所述第一子像素对应至所述第二灰阶值的一第二馈穿电压值设定，所述第二正极性数据电压值是依据所述第二子像素对应至所述第三灰阶值的一第三馈穿电压值设定，所述第二负极性数据电压值是依据所述第二子像素对应至所述第四灰阶值的一第四馈穿电压值设定，当所述第一至第四灰阶值皆相等时，所述第一正极性数据电压与所述第一负极性数据电压的平均值不等于所述第二正极性数据电压与所述第二负极性数据电压的平均值。Wherein, the first positive data voltage value is set according to a first feedthrough voltage value corresponding to the first grayscale value of the first sub-pixel, and the first negative data voltage value is set according to The first sub-pixel corresponds to a second feedthrough voltage value setting of the second gray scale value, and the second positive data voltage value is based on the second sub-pixel corresponding to the third gray a third feedthrough voltage value setting for the level value, the second negative polarity data voltage value is set according to a fourth feedthrough voltage value corresponding to the fourth grayscale value of the second sub-pixel, When the first to fourth grayscale values are all equal, the average value of the first positive polarity data voltage and the first negative polarity data voltage is not equal to the average value of the second positive polarity data voltage and the second positive polarity data voltage. Average value of negative polarity data voltage. 2.如权利要求1所述的液晶显示器，其特征在于，2. The liquid crystal display as claimed in claim 1, wherein 所述第一子像素还接收所述数据线之一所传送而来的一第三正极性数据电压或一第三负极性数据电压，以分别产生对应至一第五灰阶值或一第六灰阶值的亮度；The first sub-pixel also receives a third positive polarity data voltage or a third negative polarity data voltage transmitted from one of the data lines to generate a fifth gray scale value or a sixth gray scale value corresponding to the first sub-pixel respectively. the brightness of the gray scale value; 其中，所述第三正极性数据电压值是依据所述第一子像素对应至所述第五灰阶值的一第五馈穿电压值设定，所述第三负极性数据电压值是依据所述第一子像素对应至所述第六灰阶值的一第六馈穿电压值设定，当所述第一灰阶值等于所述第二灰阶值、所述第五灰阶值等于所述第六灰阶值、且所述第一灰阶值不等于所述第五灰阶值时，所述第一正极性数据电压与所述第一负极性数据电压的平均值不等于所述第三正极性数据电压与所述第三负极性数据电压的平均值。Wherein, the third positive data voltage value is set according to a fifth feedthrough voltage value corresponding to the fifth grayscale value of the first sub-pixel, and the third negative data voltage value is set according to The first sub-pixel corresponds to a sixth feedthrough voltage value setting of the sixth gray scale value, when the first gray scale value is equal to the second gray scale value, the fifth gray scale value When it is equal to the sixth grayscale value and the first grayscale value is not equal to the fifth grayscale value, the average value of the first positive polarity data voltage and the first negative polarity data voltage is not equal to The average value of the third positive polarity data voltage and the third negative polarity data voltage. 3.一种液晶显示器，其特征在于，包括：3. A liquid crystal display, characterized in that, comprising: 一数据驱动器；a data driver; 多条数据线，所述数据线与所述数据驱动器电性连接；a plurality of data lines, the data lines are electrically connected to the data driver; 多条扫描线；Multiple scan lines; 一扫描驱动器，用以依序致能所述扫描线；以及a scan driver for sequentially enabling the scan lines; and 多个显示单元，各显示单元至少包括：A plurality of display units, each display unit at least includes: 一第一子像素，由所述扫描线之一所控制，该第一子像素用以接收由所述数据线之一传送而来的一第一正极性数据电压或一第一负极性数据电压，以分别产生对应至一第一灰阶值或一第二灰阶值的亮度；及A first sub-pixel controlled by one of the scanning lines, the first sub-pixel is used to receive a first positive data voltage or a first negative data voltage transmitted from one of the data lines , to respectively generate brightness corresponding to a first grayscale value or a second grayscale value; and 一第二子像素，由所述扫描线之一所控制，该第一子像素与所述第二子像素的面积不相等或形状不相同，所述第二子像素用以接收由所述数据线之一传送而来的一第二正极性数据电压或一第二负极性数据电压，以分别产生对应至一第三灰阶值或一第四灰阶值的亮度；A second sub-pixel, controlled by one of the scanning lines, the first sub-pixel and the second sub-pixel have different areas or shapes, and the second sub-pixel is used to receive the data from the A second positive polarity data voltage or a second negative polarity data voltage transmitted from one of the lines to generate brightness corresponding to a third gray scale value or a fourth gray scale value; 其中，所述第一正极性数据电压值是依据所述第一子像素对应至所述第一灰阶值的一第一馈穿电压值设定，所述第一负极性数据电压值是依据所述第一子像素对应至所述第二灰阶值的一第二馈穿电压值设定，所述第二正极性数据电压值是依据所述第二子像素对应至所述第三灰阶值的一第三馈穿电压值设定，所述第二负极性数据电压值是依据所述第二子像素对应至所述第四灰阶值的一第四馈穿电压值设定，当所述第一至第四灰阶值实质上相等时，若所述第一正极性数据电压等于所述第二正极性数据电压，则所述第一负极性数据电压不等于所述第二负极性数据电压。Wherein, the first positive data voltage value is set according to a first feedthrough voltage value corresponding to the first grayscale value of the first sub-pixel, and the first negative data voltage value is set according to The first sub-pixel corresponds to a second feedthrough voltage value setting of the second gray scale value, and the second positive data voltage value is based on the second sub-pixel corresponding to the third gray a third feedthrough voltage value setting for the level value, the second negative polarity data voltage value is set according to a fourth feedthrough voltage value corresponding to the fourth grayscale value of the second sub-pixel, When the first to fourth grayscale values are substantially equal, if the first positive polarity data voltage is equal to the second positive polarity data voltage, then the first negative polarity data voltage is not equal to the second positive polarity data voltage. Negative polarity data voltage. 4.如权利要求3所述的液晶显示器，其特征在于，所述第一子像素还接收所述数据线之一所传送而来的一第三正极性数据电压或一第三负极性数据电压，以分别产生对应至一第五灰阶值或一第六灰阶值的亮度；4. The liquid crystal display according to claim 3, wherein the first sub-pixel also receives a third positive data voltage or a third negative data voltage transmitted from one of the data lines , to respectively generate brightness corresponding to a fifth grayscale value or a sixth grayscale value; 其中，所述第三正极性数据电压值是依据所述第一子像素对应至所述第五灰阶值的一第五馈穿电压值设定，所述第三负极性数据电压值是依据所述第一子像素对应至所述第六灰阶值的一第六馈穿电压值设定，当所述第三灰阶值等于所述第四灰阶值、所述第五灰阶值等于所述第六灰阶值、且所述第三灰阶值不等于所述第五灰阶值时，若所述第二正极性数据电压等于所述第三正极性数据电压，则所述第二负极性数据电压不等于所述第三负极性数据电压。Wherein, the third positive data voltage value is set according to a fifth feedthrough voltage value corresponding to the fifth grayscale value of the first sub-pixel, and the third negative data voltage value is set according to The first sub-pixel corresponds to a sixth feedthrough voltage value setting of the sixth gray scale value, when the third gray scale value is equal to the fourth gray scale value, the fifth gray scale value When it is equal to the sixth grayscale value and the third grayscale value is not equal to the fifth grayscale value, if the second positive data voltage is equal to the third positive data voltage, then the The second negative polarity data voltage is not equal to the third negative polarity data voltage. 5.一种驱动方法，其特征在于，用于一液晶显示器中，该液晶显示器具有多个显示单元与多条数据线，各显示单元至少包括一第一子像素与一第二子像素，所述第一子像素的面积不等于所述第二子像素的面积，所述第一子像素用以接收由所述数据线之一传送而来的一第一正极性数据电压或一第一负极性数据电压，以分别产生对应至一第一灰阶值或一第二灰阶值的亮度；所述第二子像素用以接收由所述数据线之一传送而来的一第二正极性数据电压或一第二负极性数据电压，以分别产生对应至一第三灰阶值或一第四灰阶值的亮度，所述数据电压设定方法包括：5. A driving method, characterized in that it is used in a liquid crystal display, the liquid crystal display has a plurality of display units and a plurality of data lines, each display unit includes at least a first sub-pixel and a second sub-pixel, so The area of the first sub-pixel is not equal to the area of the second sub-pixel, and the first sub-pixel is used to receive a first positive polarity data voltage or a first negative polarity transmitted from one of the data lines polarity data voltage to respectively generate brightness corresponding to a first grayscale value or a second grayscale value; the second sub-pixel is used to receive a second positive polarity transmitted from one of the data lines The data voltage or a second negative polarity data voltage to generate brightness corresponding to a third gray scale value or a fourth gray scale value respectively, the data voltage setting method includes: 依据所述第一子像素对应至所述第一灰阶值的一第一馈穿电压产生所述第一正极性数据电压，并将该第一正极性数据电压输入至所述第一子像素；generating the first positive data voltage according to a first feedthrough voltage corresponding to the first gray scale value of the first sub-pixel, and inputting the first positive data voltage to the first sub-pixel ; 依据所述第一子像素对应至所述第二灰阶值的一第二馈穿电压产生所述第一负极性数据电压，并将该第一负极性数据电压输入至所述第一子像素；generating the first negative polarity data voltage according to a second feedthrough voltage corresponding to the second grayscale value of the first subpixel, and inputting the first negative polarity data voltage to the first subpixel ; 依据所述第二子像素对应至所述第三灰阶值的一第三馈穿电压产生所述第二正极性数据电压，并将该第二正极性数据电压输入至所述第二子像素；以及generating the second positive data voltage according to a third feedthrough voltage corresponding to the third gray scale value of the second sub-pixel, and inputting the second positive data voltage to the second sub-pixel ;as well as 依据所述第二子像素对应至所述第四灰阶值的一第四馈穿电压产生所述第二负极性数据电压，并将该第二负极性数据电压输入至所述第二子像素；generating the second negative polarity data voltage according to a fourth feedthrough voltage corresponding to the fourth grayscale value of the second subpixel, and inputting the second negative polarity data voltage to the second subpixel ; 其中，当所述第一至第四灰阶值实质上均相等时，所述第一正极性数据电压与所述第一负极性数据电压的平均值不等于所述第二正极性数据电压与所述第二负极性数据电压的平均值。Wherein, when the first to fourth grayscale values are substantially equal, the average value of the first positive polarity data voltage and the first negative polarity data voltage is not equal to the average value of the second positive polarity data voltage and The average value of the second negative polarity data voltage. 6.如权利要求5所述的一种驱动方法，其特征在于，所述的第一子像素还由所述数据线之一接收一第三正极性数据电压或第三负极性数据电压，以分别产生对应至一第五灰阶值或一第六灰阶值的亮度；所述的数据电压设定方法还包括：6. A driving method according to claim 5, wherein the first sub-pixel also receives a third positive data voltage or a third negative data voltage from one of the data lines, so as to Respectively generate brightness corresponding to a fifth gray scale value or a sixth gray scale value; the data voltage setting method further includes: 依据所述第一子像素对应至所述第五灰阶值的一第五馈穿电压值设定所述第三正极性数据电压的电压值；setting the voltage value of the third positive polarity data voltage according to a fifth feedthrough voltage value corresponding to the fifth gray scale value of the first sub-pixel; 依据所述第一子像素对应至所述第六灰阶值的一第六馈穿电压值设定所述第三负极性数据电压的电压值；Setting the voltage value of the third negative polarity data voltage according to a sixth feedthrough voltage value corresponding to the sixth gray scale value of the first sub-pixel; 其中，当所述第一灰阶值等于所述第二灰阶值、所述第五灰阶值等于所述第六灰阶值、且所述第一灰阶值不等于所述第五灰阶值时，所述第一正极性数据电压与所述第一负极性数据电压的平均值不等于所述第三正极性数据电压与所述第三负极性数据电压的平均值。Wherein, when the first grayscale value is equal to the second grayscale value, the fifth grayscale value is equal to the sixth grayscale value, and the first grayscale value is not equal to the fifth grayscale value When the level value is higher, the average value of the first positive polarity data voltage and the first negative polarity data voltage is not equal to the average value of the third positive polarity data voltage and the third negative polarity data voltage. 7.如权利要求6所述的一种驱动方法，其特征在于，当所述第三灰阶值等于所述第四灰阶值、所述第五灰阶值等于所述第六灰阶值、且所述第三灰阶值不等于所述第五灰阶值时，若所述第二正极性数据电压等于所述第三正极性数据电压，则所述第二负极性数据电压不等于所述第三负极性数据电压。7. A driving method according to claim 6, wherein when the third gray-scale value is equal to the fourth gray-scale value, the fifth gray-scale value is equal to the sixth gray-scale value , and when the third grayscale value is not equal to the fifth grayscale value, if the second positive polarity data voltage is equal to the third positive polarity data voltage, then the second negative polarity data voltage is not equal to The third negative data voltage. 8.如权利要求5所述的一种驱动方法，其特征在于，当所述第一至第四灰阶值均相等时，若所述第一正极性数据电压等于所述第二正极性数据电压，则所述第一负极性数据电压不等于所述第二负极性数据电压。8. A driving method according to claim 5, wherein when the first to fourth gray scale values are all equal, if the first positive data voltage is equal to the second positive data voltage voltage, the first negative polarity data voltage is not equal to the second negative polarity data voltage.
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