CN101387804A - LCD with double-point inversion - Google Patents

LCD with double-point inversion Download PDF

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Publication number
CN101387804A
CN101387804A CNA2008101755361A CN200810175536A CN101387804A CN 101387804 A CN101387804 A CN 101387804A CN A2008101755361 A CNA2008101755361 A CN A2008101755361A CN 200810175536 A CN200810175536 A CN 200810175536A CN 101387804 A CN101387804 A CN 101387804A
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pixel
coupled
drive signal
data
line
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CN101387804B (en
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林允中
张芳林
李忠隆
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AU Optronics Corp
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AU Optronics Corp
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Abstract

The invention discloses a liquid crystal display device with double dot display function, comprising a plurality of gate lines for transmitting gate drive signals, a polarity of data lines for transmitting data drive signals, and a pixel array comprising a plurality of pixels for displaying pictures according to the received gate drive signals and data drive signals, wherein the first data line is coupled with the first pixel row and the second pixel row of the pixel array, the data lines are curves, the first pixel row and the second pixel row are at least distanced of two rows.

Description

A kind of LCD of tool double-point inversion
Technical field
The invention relates to a kind of LCD, more particularly, relate to the LCD of a kind of tool double-point inversion and energy power saving.
Background technology
Please refer to Fig. 1.Fig. 1 is LCD (Liquid Crystal Display, LCD) 100 the synoptic diagram of a prior art.As shown in Figure 1, LCD 100 comprises a gate driver circuit 110, a data drive circuit 120 and a pixel region 130.
Gate driver circuit 110 comprises many gate lines G 1~ G N, be used for producing in regular turn gate drive signal S G1~ S GN Data drive circuit 120 comprises many data line D 1~ D M, be used for producing data drive signal S D1~ S DMEach gate lines G 1~ G NBe straight line, each the data line D that is parallel to each other 1~ D MBe the straight line that is parallel to each other.Pixel region 130 comprises the array of pixels of the capable N row of a M.This array of pixels comprises (the individual pixel P of M * N) 11~ P MNPixel in the array of pixels is by gate lines G 1~ G NWith data line D 1~ D MStaggered forming, and by the gate drive signal driving that gate line produced of correspondence with the reception data drive signal that respective data lines was produced.For instance, pixel P 11In receiving gate drive signal S G1The time, receive data drive signal S D1With display frame, pixel P 12In receiving gate drive signal S G2The time, receive data drive signal S D1With display frame, pixel P 21In receiving gate drive signal S G1The time, receive data drive signal S D2With display frame, pixel P 22In receiving gate drive signal S G2The time, receive data drive signal S D2With display frame, the rest may be inferred.
Please also refer to Fig. 2 and Fig. 3.Fig. 2 and Fig. 3 illustrate that the LCD 100 of prior art is with a synoptic diagram of counter-rotating (dot inversion) display frame.In Fig. 2 and Fig. 3, two pictures that picture X and picture (X+1) expression is adjacent, meaning is LCD 100 display frame immediately (X+1) after having shown picture X.As Fig. 2 and shown in Figure 3, in order to make picture X and the characteristic that (X+1) can have a counter-rotating, the polarity of the data drive signal that every data line was loaded with is after every time through a gate drive signal, just need reverse once (just changeing negative, or negative becoming a full member); And the polarity of the data drive signal that every adjacent data line is contained is opposite all each other.For instance, in picture X, data drive signal S D1At gate drive signal S G1Time in polarity for just, so that pixel P 11Shown polarity for just, data drive signal S D1At gate drive signal S G2Time in polarity for negative, so that pixel P 12Shown polarity is negative, data drive signal S D1At gate drive signal S G3Time in polarity for just, so that pixel P 13Shown polarity for just, data drive signal S D1At gate drive signal S G4Time in polarity for negative, so that pixel P 14Shown polarity is for negative; Comparatively speaking, adjacent to data line D 1Data line D 2Go up contained data drive signal S D2, at gate drive signal S G1Time in polarity for negative, so that pixel P 21Shown polarity is negative, data drive signal S D2At gate drive signal S G2Time in polarity for just, so that pixel P 22Shown polarity for just, data drive signal S D2At gate drive signal S G3Time in polarity for negative, so that pixel P 23Shown polarity is negative, data drive signal S D2At gate drive signal S G4Time in polarity for just, so that pixel P 24Shown polarity is for just, and the rest may be inferred, just so can draw the picture X that has a reverse speed characterisstic shown in Fig. 2 top.And in the picture (X+1) of Fig. 3, be that the polarity of gained data drive signal is reversed once once again, just so can draw the picture (X+1) that shown in Fig. 3 top, has a reverse speed characterisstic.
And the LCD 100 of prior art, because its gate line is all and is parallel to each other, data line is all and is parallel to each other, and gate line is interlaced vertical with data line, therefore if will reach the purpose of reversing at a picture mid point, the polarity of the data drive signal that data line is contained just must every through a gate drive signal after the counter-rotating once, so will cause the too much loss of power, cause user's inconvenience greatly.
Summary of the invention
The present invention provides a kind of LCD of tool double-point inversion.LCD comprises many gate lines, is used for transmitting gate drive signal; Many data lines are used for transmitting data drive signal; And an array of pixels, comprise a plurality of capable pixels.Each of those row pixels lists and all comprises a pixel to form this array of pixels.This array of pixels is with display frame according to the gate drive signal that is received and data drive signal.Wherein those pixels are between these adjacent two gate lines and this adjacent two data lines.Wherein one first data line in those data lines is to be coupled to one first row pixel of one first pair of capable pixel in this array of pixels and one second row pixel of one second pair of capable pixel, and this first row pixel and this second row pixel differ two at least and go.
The present invention provides the LCD of a kind of tool double-point inversion and power saving in addition.This LCD comprises one first, 1 second, 1 the 3rd, 1 the 4th gate line, is used for transmitting gate drive signal; One first, 1 second data line is used for transmitting data drive signal; An and array of pixels.This array of pixels comprises one first, 1 second, 1 the 3rd, 1 the 4th, 1 the 5th, and one the 6th pixel.This first pixel is arranged at first row first row of this array of pixels, is coupled to this first grid polar curve and this first data line, is used for according to the gate drive signal that is received and data drive signal with display frame.This second pixel is arranged at second row first row of this array of pixels, is coupled to this second grid line and this first data line, is used for according to the gate drive signal that is received and data drive signal with display frame.The 3rd pixel is arranged at the third line first row of this array of pixels, is coupled to this first grid polar curve and this second data line, is used for according to the gate drive signal that is received and data drive signal with display frame.The 4th pixel is arranged at fourth line first row of this array of pixels, is coupled to this second grid line and this second data line, is used for according to the gate drive signal that is received and data drive signal with display frame.The 5th pixel is arranged at the third line secondary series of this array of pixels, is coupled to the 3rd gate line and this first data line, is used for according to the gate drive signal that is received and data drive signal with display frame.The 6th pixel is arranged at the fourth line secondary series of this array of pixels, is coupled to the 4th gate line and this first data line, is used for according to the gate drive signal that is received and data drive signal with display frame.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the synoptic diagram of the LCD of a prior art;
Fig. 2 and Fig. 3 illustrate that the LCD of prior art is with a synoptic diagram of counter-rotating display frame;
Fig. 4 is the synoptic diagram of a LCD of the present invention;
Fig. 5 and Fig. 6 are the synoptic diagram of explanation LCD of the present invention with double-point inversion display frame;
Fig. 7, Fig. 8, Fig. 9 be according to of the present invention second and third, the synoptic diagram of the LCD of four embodiment.
Wherein, Reference numeral
100,400 LCD
110,410 gate driver circuits
120,420 data drive circuits
130,430 pixel regions
G 1~ G NGate line
D 1~ D MData line
S G1~ S GNGate drive signal
S D1~ S DMData drive signal
The SW pixel switch
C ST, C LCElectric capacity
P 11、P 12、P 13、P 14、P 21、P 22、
P 23、P 24、P 31、P 32、P 33、P 34、
P 41, P 42, P 43, P 44, P 51, P 52, pixel
P 53、P 61、P 62、P 63
Embodiment
Please refer to Fig. 4.Fig. 4 is the synoptic diagram according to the LCD 400 of the first embodiment of the present invention.As shown in Figure 4, LCD 400 comprises a gate driver circuit 410, a data drive circuit 420 and a pixel region 430.
Gate driver circuit 410 comprises many gate lines G 1~ G N, gate driver circuit 410 is used for producing in regular turn gate drive signal S G1~ S GNAnd respectively via gate lines G 1~ G NTransmission.Data drive circuit 420 comprises many data line D 1~ D M, data drive circuit 420 is used for producing data drive signal S D1~ S DMAnd respectively via data line D 1~ D MTransmission.Each gate lines G 1~ G NBe the straight line that is parallel to each other.Each data line D 1~ D MIt is the curve (snakelike curve) that is designed to have arc type.More particularly, the data line that the present invention is designed in pixel region 430, is the two couples row pixel bending several in correspondence.For instance, data line D 2Between the first row pixel that is arranged at pixel region 430 and the second capable pixel between (first pair of capable pixel) and the third line pixel and the fourth line pixel (second pair of capable pixel).More particularly, in first row of pixel region 430, data line D 2Be arranged at pixel P 11With P 21Between (first pair of capable pixel), in the secondary series of pixel region 430, data line D 2Be bent to pixel P 32With P 42Between (second pair of capable pixel), in pixel region 430 the 3rd row in, data line D 2Bend back pixel P 13With P 23Between (first pair of capable pixel), in pixel region 430 the 4th row in, data line D 2Be bent to pixel P again 34With P 44Between (second pair of capable pixel) (not shown), the rest may be inferred.Data line D 3Be arranged between the third line pixel and fourth line pixel of pixel region 430 between (first pair of capable pixel) and fifth line pixel and the 6th row pixel (second pair of capable pixel).More particularly, in first row of pixel region 430, data line D 3Be arranged at pixel P 31With P 41Between (first pair of capable pixel), in the secondary series of pixel region 430, data line D 2Be bent to pixel P 52With P 62Between (second pair of capable pixel), in pixel region 430 the 3rd row in, data line D 2Bend back pixel P 33With P 43Between (first pair of capable pixel), in pixel region 430 the 4th row in, data line D 2Be bent to pixel P again 54With P 64Between (second pair of capable pixel) (not shown), the rest may be inferred.The remainder data line is provided with the mode of layout all similar to the above, repeats no more in this.
Pixel region 430 comprises the array of pixels of the capable N row of a M.This array of pixels comprises (the individual pixel P of M * N) 11~ P MNPixel in the array of pixels is by gate lines G 1~ G NWith data line D 1~ D MStaggered forming, and by the gate drive signal driving that gate line produced of correspondence with the reception data drive signal that respective data lines was produced.For instance, pixel P 11Be coupled to gate lines G 1With data line D 2, in receiving gate drive signal S G1The time, receive data drive signal S D2With display frame, pixel P 21Be coupled to gate lines G 2With data line D 2, in receiving gate drive signal S G2The time, receive data drive signal S D2With display frame, pixel P 12Be coupled to gate lines G 3With data line D 1, in receiving gate drive signal S G3The time, receive data drive signal S D1With display frame, pixel P 22Be coupled to gate lines G 4With data line D 1, in receiving gate drive signal S G4The time, receive data drive signal S D1With display frame, pixel P 31Be coupled to gate lines G 1With data line D 3, in receiving gate drive signal S G1The time, receive data drive signal S D3With display frame, pixel P 41Be coupled to gate lines G 2With data line D 3, in receiving gate drive signal S G2The time, receive data drive signal S D3With display frame, pixel P 32Be coupled to gate lines G 3With data line D 2, in receiving gate drive signal S G3The time, receive data drive signal S D2With display frame, pixel P 42Be coupled to gate lines G 4With data line D 2, in receiving gate drive signal S G4The time, receive data drive signal S D2With display frame, the rest may be inferred.In addition, each pixel is (as the pixel P among Fig. 4 32With P 42) comprise a pixel switch SW, a liquid crystal capacitance C LCAn and storage capacitors C STPixel switch SW can (Thin FilmTransistor TFT) realizes, its grid is the control end of pixel switch by a thin film transistor (TFT).The control end C of the pixel switch SW of one pixel is coupled to the pairing gate line of this pixel, be used for receiving corresponding gate drive signal, first end 1 of this pixel switch SW is coupled to this pixel corresponding data lines, second end 2 that is used for receiving pairing data drive signal, this pixel switch SW is coupled to this liquid crystal capacitance C LCWith this storage capacitors C STBetween.This liquid crystal capacitance C LCWith this storage capacitors C STBe coupled between this second end 2 and a common ends of this pixel switch.
Please also refer to Fig. 5 and Fig. 6.Fig. 5 and Fig. 6 are the synoptic diagram of explanation LCD 400 of the present invention with double-point inversion (two-dot inversion) display frame.In Fig. 5 and Fig. 6, two pictures that picture X and picture (X+1) expression is adjacent, meaning is LCD 400 display frame immediately (X+1) after having shown picture X.As Fig. 5 and shown in Figure 6, in order to make picture X and the characteristic that (X+1) can have double-point inversion, the polarity of the data drive signal that every adjacent data line is contained is opposite all each other, and because the designed data line of the present invention has the characteristic of arc type, therefore the polarity of the data drive signal of single data line need not be reversed in same picture, so just can save the power consumption of LCD.For instance, in picture X, data line D 2On data drive signal S D2Polarity just be continuously so that pixel P 11, P 21, P 32, P 42, P 13, P 23Shown polarity is for just; Comparatively speaking, adjacent to data line D 2Data line D 3Go up contained data drive signal S D3, its polarity is continuously negative, so that pixel P 31, P 41, P 12, P 22, P 33, P 43Shown polarity is for negative, and the rest may be inferred, just so can draw the picture X that has the double-point inversion characteristic shown in Fig. 5 top.And in the picture (X+1) of Fig. 6, be that the polarity of the data drive signal of gained is reversed once once again, just so can draw the picture (X+1) that shown in Fig. 6 top, has the double-point inversion characteristic.
Please refer to Fig. 7, Fig. 8, Fig. 9.Fig. 7, Fig. 8, Fig. 9 figure be according to of the present invention second and third, the synoptic diagram of the LCD of four embodiment.The liquid crystal display device structure of Fig. 7, Fig. 8, Fig. 9 is similar to LCD 400, and difference only is that each pixel is different with the mode that gate line, data line couple, and relevant operation principles repeats no more in this as aforementioned and known by industry.
In sum, LCD provided by the present invention, because its data line designed in pixel region has the characteristic of arc type, therefore the polarity of the data drive signal of the data line in same picture need not be reversed, so just can save the power consumption of LCD, the user is provided bigger convenience.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims (17)

1. the LCD of a tool double-point inversion is characterized in that, comprises:
Many gate lines are used for transmitting gate drive signal;
Many data lines are used for transmitting data drive signal;
One array of pixels comprises a plurality of capable pixels, and each of those row pixels lists and all comprises a pixel forming this array of pixels, and this array of pixels is with display frame according to the gate drive signal that is received and data drive signal;
Wherein those pixels are between these adjacent two gate lines and this adjacent two data lines;
Wherein one first data line in those data lines is to be coupled to one first row pixel of one first pair of capable pixel in this array of pixels and one second row pixel of one second pair of capable pixel, and this first row pixel and this second row pixel differ two at least and go.
2. LCD according to claim 1 is characterized in that, wherein these many data lines are the curve with bending in this array of pixels; These many gate lines are the straight line for being parallel to each other in this array of pixels.
3. LCD according to claim 1, it is characterized in that wherein this first data line is coupled to the pairing pixel of these first row adjacent to the third line pixel of this first row pixel of the one first pairing pixel of row of this first row pixel of this first couple row pixel and this first couple row pixel; This first data line is coupled to the pairing pixel of this secondary series adjacent to a fourth line pixel of this second row pixel of the pairing pixel of a secondary series of this second row pixel of this second couple row pixel and this second couple row pixel; Wherein this first row with this second classify as different.
4. LCD according to claim 1 is characterized in that, wherein a pixel of these a plurality of pixels comprises:
One pixel switch comprises:
One first end is coupled to the pairing data line of this pixel;
One second end;
One control end is coupled to the pairing gate line of this pixel;
One liquid crystal capacitance is coupled between this second end and a common ends of this pixel switch;
One storage capacitors is coupled between this second end and this common ends of this pixel switch.
5. LCD according to claim 4 is characterized in that wherein this pixel switch can be a thin film transistor (TFT), and this control end of this pixel switch is the grid of this thin film transistor (TFT).
6. LCD according to claim 1 is characterized in that, wherein the data drive signal transmitted of this first data line is that the polarity of the data drive signal transmitted with one second data line of adjacent this first data line is opposite.
7. LCD according to claim 1, it is characterized in that wherein the data drive signal transmitted of this first data line is that the polarity of the data drive signal transmitted with this first data line is opposite in one second picture of adjacent this first picture in one first picture.
8. LCD according to claim 1 is characterized in that, wherein the polarity of the data drive signal transmitted in a picture of this first data line is all identical.
9. LCD according to claim 1 is characterized in that other comprises:
One gate driver circuit is coupled to this many gate lines, is used for producing these a plurality of gate drive signals;
One data drive circuit is coupled to this many data lines, is used for producing these a plurality of data drive signal.
10. the LCD of tool double-point inversion and power saving is characterized in that, comprises:
One first, 1 second, 1 the 3rd, 1 the 4th gate line is used for transmitting gate drive signal;
One first, 1 second data line is used for transmitting data drive signal;
One array of pixels comprises:
One first pixel is arranged at first row first row of this array of pixels, is coupled to this first grid polar curve and this first data line, is used for according to the gate drive signal that is received and data drive signal with display frame;
One second pixel is arranged at second row first row of this array of pixels, is coupled to this second grid line and this first data line, is used for according to the gate drive signal that is received and data drive signal with display frame;
One the 3rd pixel is arranged at the third line first row of this array of pixels, is coupled to this first grid polar curve and this second data line, is used for according to the gate drive signal that is received and data drive signal with display frame;
One the 4th pixel is arranged at fourth line first row of this array of pixels, is coupled to this second grid line and this second data line, is used for according to the gate drive signal that is received and data drive signal with display frame;
One the 5th pixel is arranged at the third line secondary series of this array of pixels, is coupled to the 3rd gate line and this first data line, is used for according to the gate drive signal that is received and data drive signal with display frame;
One the 6th pixel is arranged at the fourth line secondary series of this array of pixels, is coupled to the 4th gate line and this first data line, is used for according to the gate drive signal that is received and data drive signal with display frame.
11. LCD according to claim 10 is characterized in that, wherein this first, second data line is the curve with bending in this array of pixels; This first, second, third, fourth gate line is the straight line for being parallel to each other in this array of pixels.
12. LCD according to claim 9 is characterized in that, wherein:
This first pixel comprises:
One pixel switch comprises:
One first end is coupled to this first data line;
One second end;
One control end is coupled to this first grid polar curve;
One liquid crystal capacitance is coupled between this second end and a common ends of this pixel switch;
One storage capacitors is coupled between this second end and this common ends of this pixel switch;
This second pixel comprises:
One pixel switch comprises:
One first end is coupled to this first data line;
One second end;
One control end is coupled to this second grid line;
One liquid crystal capacitance is coupled between this second end and this common ends of this pixel switch;
One storage capacitors is coupled between this second end and this common ends of this pixel switch;
The 3rd pixel comprises:
One pixel switch comprises:
One first end is coupled to this second data line;
One second end;
One control end is coupled to this first grid polar curve;
One liquid crystal capacitance is coupled between this second end and this common ends of this pixel switch;
One storage capacitors is coupled between this second end and this common ends of this pixel switch;
The 4th pixel comprises:
One pixel switch comprises:
One first end is coupled to this second data line;
One second end;
One control end is coupled to this second grid line;
One liquid crystal capacitance is coupled between this second end and this common ends of this pixel switch;
One storage capacitors is coupled between this second end and this common ends of this pixel switch;
The 5th pixel comprises:
One pixel switch comprises:
One first end is coupled to this first data line;
One second end;
One control end is coupled to the 3rd gate line;
One liquid crystal capacitance is coupled between this second end and this common ends of this pixel switch;
One storage capacitors is coupled between this second end and this common ends of this pixel switch;
The 6th pixel comprises:
One pixel switch comprises:
One first end is coupled to this first data line;
One second end;
One control end is coupled to the 4th gate line;
One liquid crystal capacitance is coupled between this second end and this common ends of this pixel switch;
One storage capacitors is coupled between this second end and this common ends of this pixel switch.
13. LCD according to claim 12, it is characterized in that, wherein the pixel switch of this first, second, third, fourth, fifth and sixth pixel can be a thin film transistor (TFT), and this control end of this pixel switch is the grid of this thin film transistor (TFT).
14. LCD according to claim 10 is characterized in that, wherein the data drive signal transmitted of this first data line is that the polarity of the data drive signal transmitted with this second data line is opposite.
15. LCD according to claim 14, it is characterized in that wherein the data drive signal transmitted of this first data line is that the polarity of the data drive signal transmitted with this first data line is opposite in one second picture of adjacent this first picture in one first picture.
16. LCD according to claim 10 is characterized in that, wherein the polarity of the data drive signal transmitted in a picture of this first data line is all identical; The polarity of the data drive signal that this second data line is transmitted in this picture is all identical.
17. LCD according to claim 10 is characterized in that, other comprises:
One gate driver circuit is coupled to this many gate lines, is used for producing these a plurality of gate drive signals;
One data drive circuit is coupled to this many data lines, is used for producing these a plurality of data drive signal.
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CN101763834B (en) * 2009-12-31 2013-06-26 友达光电股份有限公司 Liquid-crystal display device
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US8405593B2 (en) 2009-03-06 2013-03-26 Au Optronics Corp. Liquid crystal device with multi-dot inversion
CN101763834B (en) * 2009-12-31 2013-06-26 友达光电股份有限公司 Liquid-crystal display device
CN102890920B (en) * 2011-07-19 2015-06-03 群康科技(深圳)有限公司 Liquid crystal display device and driving method thereof
CN102890920A (en) * 2011-07-19 2013-01-23 群康科技(深圳)有限公司 Liquid crystal display device and driving method thereof
CN103926766B (en) * 2013-08-07 2016-10-12 上海中航光电子有限公司 Pel array and liquid crystal indicator
CN103926766A (en) * 2013-08-07 2014-07-16 上海中航光电子有限公司 Pixel array and liquid crystal display device
DE102014209588A1 (en) 2013-08-07 2015-02-12 Shanghai Avic Optoelectronics Co., Ltd. PIXEL ARRAY AND LIQUID CRYSTAL DISPLAY DEVICE
US9176350B2 (en) 2013-08-07 2015-11-03 Shanghai Avic Optoelectronics Co., Ltd. Pixel array and liquid crystal display device
WO2015027630A1 (en) * 2013-08-30 2015-03-05 合肥京东方光电科技有限公司 Polarity-reversal driving method and polarity-reversal driving circuit
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WO2017166412A1 (en) * 2016-03-30 2017-10-05 深圳市华星光电技术有限公司 Data driver and liquid crystal display provided with data driver
US10269315B2 (en) 2016-03-30 2019-04-23 Shenzhen China Star Optoelectronics Technology Co., Ltd. Data driver and liquid crystal display having the same
CN110956921A (en) * 2020-01-03 2020-04-03 京东方科技集团股份有限公司 Array substrate, driving method thereof, pixel driving device and display device
CN110956921B (en) * 2020-01-03 2023-12-22 京东方科技集团股份有限公司 Array substrate, driving method thereof, pixel driving device and display device
WO2021169755A1 (en) * 2020-02-28 2021-09-02 京东方科技集团股份有限公司 Array substrate and display device
US11934060B2 (en) 2020-02-28 2024-03-19 Beijing Boe Display Technology Co., Ltd. Array substrate and display device
WO2022057027A1 (en) * 2020-09-17 2022-03-24 Tcl华星光电技术有限公司 Array substrate and liquid crystal display panel
US11551627B2 (en) 2020-09-17 2023-01-10 Tcl China Star Optoelectronics Technology Co., Ltd. Array substrate and liquid crystal display panel

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