CN100538481C

CN100538481C - Dot structure

Info

Publication number: CN100538481C
Application number: CNB2005101357178A
Authority: CN
Inventors: 黄乙白; 张庭瑞; 陈伯纶; 曹正翰
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2005-12-28
Filing date: 2005-12-28
Publication date: 2009-09-09
Anticipated expiration: 2025-12-28
Also published as: CN1794072A

Abstract

The invention discloses a kind of dot structure, it is applicable to multiple block vertically aligned liquid crystal display, comprise: pel array, it comprises sub-pixel, first substrate and second substrate of a plurality of adjacent arrangements, and it has first tilt angle control structure and second tilt angle control structure respectively; Wherein, first tilt angle control structure is configured to be staggered with this second tilt angle control, is a plurality of position angles block (azimuthal angle domain) to separate this sub-pixel; In addition, sub-pixel also comprises different poles angular region piece (polarangle domain), and sub-pixel and adjacent pixels have the piece of the parallactic angle of the angular region piece of mirror configuration and mirror configuration.

Description

Dot structure

Technical field

Vertically aligned (multi-domain vertical alignment, MVA) LCD is especially in regard to a kind of wide-angle liquid crystal display dot structure that can improve the pixel quality about multiple block in the present invention.

Background technology

(Thin Film Transistor Liquid CrystalDisplay, TFT-LCD) technology is to trend towards high contrast (high contrast ration), high brightness (highluminance), colo(u)r bias little (little color shift), the counter-rotating of no GTG (no gray scale inversion), askiatic residual (no image retention), reaction velocity fast (fast response time) and the development of wide viewing angle characteristics such as (wide viewing angle) for Thin Film Transistor-LCD at present.

Wherein, the visual angle problem is present in the LCD always.In order to increase its visual angle, one of technology that adopts is that liquid crystal area is separated into multiple block at present, makes the liquid crystal molecule that is positioned at different blocks can present multiple toppling direction, and then reaches the purpose of promoting the visual angle.In order to make liquid crystal molecule present different toppling directions, general way is to use jut (protrusion) and or has a combination of the conductive electrode of slit (slit), for example multiple block vertically aligned (MVA) LCD.Wherein, raised structures or the conductive electrode with slit (slit) are arranged in the LCD upper and lower base plate and towards liquid crystal layer, make liquid crystal molecule produce tilt angle, and after applying voltage, present different toppling directions.

Fig. 1 has shown a kind of known multiple block vertically aligned liquid crystal display dot structure floor map.Please refer to Fig. 1, the multiple block vertically aligned liquid crystal display sub-pixel 200 of known technology comprises: the conductive electrode 104 that jut (protrusion) 100 is disposed at colored filter substrate, have a slit is disposed at array base palte, interconnected by jut 100 and slit, can make 102 one-tenth four kinds of different toppling directions of liquid crystal molecule, cause four kinds of different orientations blocks (azimuthal angle domain), to reach the effectiveness of wide viewing angle; Yet, because the width P0 ' of first orientation angular region piece 202 equals the width P0 of second party parallactic angle 204 in the known design of Fig. 1, cause in the sub-pixel in the block of position angle, the left side of jut 100 and right side block area are unequal, and the generation shortcoming, for example: the ratio of first orientation angular region piece 202 areas and second orientation angular region piece 204 areas is asymmetric, when the user when different visual angles is watched, can feel phenomenon such as color white partially (color washout) and gray-scale inversion and reduce the quality of image of panel integral body; As shown in Figure 2, the graph of relation that varies by angle of view for the gamma curve of the multiple block vertically aligned liquid crystal display of tradition, curve A, B, C are respectively the gamma curve that the visual angle is 0 °, LOOK RIGHT and LOOK LEFT, can find that the gamma curve at visual angle, the left and right sides differs greatly.

In order to improve this kind shortcoming, another known technology, please refer to Fig. 3, jut 100 ' the position that sub-pixel 200 ' adopts mobile colored filter substrate, adjust the area of position angle block in the sub-pixel, each position angle block area is equated, but first orientation angular region piece 202 ' width P2 ' this moment is not equal to the width P2 of second party parallactic angle 204 '; In like manner, the width P1 of third party's parallactic angle block 206 ' is not equal to the width P1 ' of cubic parallactic angle 208 ', though remedied last disappearance by the position of mobile lug boss 100 ', bring other shortcoming also, for example: when P1 ≠ P1 ', P2 ≠ P2 ', to topple over the strength of pushing at sub-pixel the right and left unequal because of liquid crystal, cause unsettled line of discontinuity (disconnection line) easily, and then the phenomenon of image residue (image retention) takes place when switching GTG; In addition, work as P1 ' and P2 ' is long, and during much larger than the length of existing product, topple over the strength of pushing because of liquid crystal and become very weak, will cause the reaction time significantly slack-off, make product can't meet existing specification; Also have, when P1 and P2 are too short, easily because very little that group or bit errors are caused that the area of a certain position angle block (azimuthal angle domain) becomes, it is even complete obiteration, therefore just can be at this position angle (azimuthal angle) phenomenon of gray-scale inversion appears, more seriously influence its quality of image.

Summary of the invention

Order of the present invention just provides the vertically aligned dot structure of multiple block that a kind of tool mirror image is provided with, it is unequal to solve single sub-pixel internal cause position angle area ratio, make visual angle, left and right sides quality of image difference or the different phenomenon of colour cast degree, and single sub-pixel interior orientation edged surface is long-pending is in equal proportions, but the problem of image residue is arranged.

For reaching above-mentioned and other purpose, the present invention mainly utilizes in the two adjacent mirror configuration sub-pixels, about or the mutual pixel arrangement of mirror up and down, and, in the two adjacent mirror configuration sub-pixels, the total area of each the position angle block in the piece of same pole angular region is essentially identical design, makes it have the characteristic of position angle block area than self-compensating.

According to a preferred embodiment of the present invention is a kind of multiple block vertically aligned liquid crystal display dot structure that is applicable to, the array of sub-pixels that comprises a plurality of adjacent arrangements, has first tilt angle control structure on its colored filter substrate, has second tilt angle control structure on the array base palte, and be configured to be staggered by first tilt angle control structure and the control of second tilt angle, separating this sub-pixel is a plurality of azimuthal blocks (azimuthal angle domain); Wherein, also comprise the block (polar angle domain) of different polar angles in the sub-pixel, and sub-pixel and adjacent sub-pixel have the polar angle block of mirror configuration and azimuthal block of mirror configuration.

Dot structure according to another preferred embodiment of the present invention is the array of sub-pixels of a plurality of adjacent arrangements, its structure comprises: active block, see through the first polar angle block, capacitive coupling electrode that data line is electrically connected on array base palte, be disposed under the second polar angle block, and capacitive coupling electrode sees through, and this active block is electrically connected on this data line, liquid crystal layer is arranged between colored filter substrate and array base palte; And the sub-pixel of present embodiment comprises the first polar angle block and the second polar angle block of different potentials, and more divide into a plurality of position angles block on the block of the first polar angle block and second polar angle, and the polar angle block and the position angle block of at least one adjacent sub-pixel are mirror configuration.

It should be noted that, in the embodiments of the invention, in the two adjacent mirror configuration sub-pixels, the total area of each the position angle block in the piece of same pole angular region is basic identical, and the mirror configuration of adjacent sub-pixel comprises that the mirror image with three these sub-pixels and three sub-pixels becomes periodically configuration, or comprises that also the mirror image with sub-pixel more than three and the sub-pixel more than three becomes periodically configuration; And three sub-pixels can be red, green and blue.

In addition, in the embodiments of the invention, first kind of tilt angle control structure independently selected from jut or slit with second tilt angle control structure; And, therefore, can when writing, each data effectively discharge the residual charge in the dot structure, and the electric charge releasing unit can be capacitor or thin film transistor (TFT) because of the electric charge of employing releasing unit is arranged in one embodiment of the invention.

Description of drawings

For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and conjunction with figs., be described in detail below:

Fig. 1 illustrates and is known multiple block vertically aligned liquid crystal display dot structure floor map;

Fig. 2 illustrates the graph of relation that the gamma curve for the multiple block vertically aligned liquid crystal display of tradition varies by angle of view.

Fig. 3 illustrates and is known multiple block vertically aligned liquid crystal display dot structure floor map

Fig. 4 shows the diagrammatic cross-section according to the multiple block vertically aligned liquid crystal display of the embodiment of the invention.

Fig. 5 illustrates and is the multiple block vertically aligned liquid crystal display dot structure floor map according to first embodiment of the invention;

Fig. 6 illustrates and is the multiple block vertically aligned liquid crystal display dot structure top plan view according to first embodiment of the invention;

Fig. 7 illustrates and is the multiple block vertically aligned liquid crystal display dot structure top plan view according to second embodiment of the invention;

Fig. 8 illustrates and is the multiple block vertically aligned liquid crystal display dot structure floor map according to second embodiment of the invention;

Fig. 9 illustrates and is the multiple block vertically aligned liquid crystal display dot structure top plan view according to third embodiment of the invention;

Figure 10 illustrates and is the multiple block vertically aligned liquid crystal display dot structure top plan view according to fourth embodiment of the invention;

Figure 11 illustrates and is the multiple block vertically aligned liquid crystal display dot structure floor map according to the embodiment of the invention;

Figure 12 illustrates and is the multiple block vertically aligned liquid crystal display dot structure floor map according to further embodiment of this invention;

Figure 13 illustrates the mode of arranging into the multiple block vertically aligned liquid crystal display dot structure of the 5th embodiment according to the present invention;

Figure 14 illustrates the mode of arranging into the multiple block vertically aligned liquid crystal display dot structure of the 6th embodiment according to the present invention;

Figure 15 illustrates the mode of arranging into the multiple block vertically aligned liquid crystal display dot structure of the 7th embodiment according to the present invention;

Figure 16 illustrates the mode of arranging into the multiple block vertically aligned liquid crystal display dot structure of the 8th embodiment according to the present invention;

Figure 17 illustrates the graph of relation that the gamma curve of the multiple block vertically aligned liquid crystal display of the 1st embodiment according to the present invention varies by angle of view.

[primary clustering symbol description]

10I, 20I, 30I, 40I, 50II, 60II, 70II, 80II, 10I ', 20I ', 30I ', 40I ', 50II ', 60II ', 70II ', 80II '～azimuthal block;

100,100 ', 410～jut; 104～have a conductive electrode of slit;

102～liquid crystal molecule;

200,200 ', 700,700 ', 900,1000,1000 ', 2000～sub-pixel structure;

202,202 '～first orientation angular region piece; 204,204 '～second orientation angular region piece;

206 '～third party parallactic angle block; 208 '～the cubic parallactic angle block;

400～colored filter substrate; 500～array base palte;

510～conductive electrode; 512～slit; 600～liquid crystal layer;

702, the first of 702 '～drain electrode; 704, the second portion of 704 '～drain electrode;

705 ', 706 '～the second drain electrode; 706,706 ', 1006,1006 '～drain electrode;

708,708 ' 1001,1001 '～data line;

800,1002～active block; 800 ', 1002 '～the first film transistor;

801,1005,1005 '～channel layer; 802,802 '～capacitive coupling electrode;

803,1004,1004 '～source electrode; 803 ', 1023 '～the second source electrode;

804,1022,1022 '～reservior capacitor (Cst);

806～contact hole; 807 ', 1009 '～the second channel layer;

808,1008～grid; 808 ', 1008 '～second grid;

809 ', 804 '～the second thin film transistor (TFT); 809 ', 1003 '～the second thin film transistor (TFT);

806 ', 1010,1010 '～the first contact hole;

1015,1015 '～the first capacitive coupling electrode;

1016,1016 '～the second capacitive coupling electrode;

1018,1018 '～plain conductor; 1020,1020 '～the first metal conducting layer;

1023 '～the second source electrode; 805 ', 1011 ', 1024,1024 '～the second contact hole;

1025 '～the second drain electrode; The width of P0 '～first orientation angular region piece;

The width of P0～second party parallactic angle; The width of P1～third party's parallactic angle block 206 ';

The width of P1 '～cubic parallactic angle 208 '; The width of P2～second orientation angular region piece 204 ';

The width of P2 '～first party parallactic angle 202 '; The block of I, II, I ', II '～polar angle;

L～at interval; A, B～unit sub-pixel; C～big unit sub-pixel.

Embodiment

For the image that the solves known technology problem of white (color washout) partially, the present invention uses the adjacent sub-pixel 1000 and 1000 ' in the left and right sides to have polar angle block I ', the II ' of mirror configuration and position angle block 10I ', 20I ', 30I ', 40I ', 50II ', 60II ', 70II ', the 80II ' of mirror configuration in first embodiment, and adjacent two each other in the sub-pixel of mirror image, the area summation of each position angle block of same pole angular region piece is equal all in fact.

First embodiment

Fig. 5 and Fig. 6 illustrate the synoptic diagram that first embodiment of the invention is a kind of multiple block vertically aligned liquid crystal display sub-pixel structure, please be simultaneously with reference to Fig. 4.In the present embodiment, sub-pixel 1000 comprises colored filter substrate 400 and array base palte 500, and liquid crystal layer 600 is arranged between colored filter substrate 400 and the array base palte 500; Wherein, comprise first tilt angle control structure 410 on the colored filter substrate 400, comprise second tilt angle control structure 512 on the array base palte 500, tilt angle control structure can carry out orientation to liquid crystal, and first tilt angle control structure, 410 and second tilt angle control structure 512 is for being staggered, to separate sub-pixel is a plurality of azimuthal blocks (azimuthal angle domain) 10I, 20I, 30I, 40I, 50II, 60II, 70II, 80II, and wherein the angle of this position angle block can be 45 °, 135 °, 225 ° and 315 °.

Please refer to Fig. 4, first tilt angle control structure, 410 and second tilt angle control structure 512 of present embodiment can be controlled the liquid crystal molecule guide shaft, forms various position angle block, to reach the purpose of wide viewing angle; It should be noted that, though first tilt angle that Fig. 4 illustrated control structure 410 is shaped as jut, second tilt angle control structure 512 is the slit between the conductive electrode 510, but those of ordinary skill in the art should understand, first and second tilt angle control structure 410,512 is also interchangeable, perhaps both are slit simultaneously, or are jut simultaneously.

Particularly, please refer to Fig. 5, sub-pixel 1000 also has block (polar angle domain) I, the II that is shaped as asymmetric different polar angles, and it utilizes interval L to separate into the block I of first polar angle and the block II of second polar angle, and making the pixel electrode of the block II of win the polar angle block I and second polar angle is discontinuous structure.Structure that it should be noted that this interval L can be made of second tilt angle control structure 512.

In addition, in the present embodiment, please refer to Fig. 5, polar angle block I ', II ' that adjacent sub-pixel 1000 ' and sub-pixel 1000 have mirror image, and the configuration of the position angle block of mirror image, to reach the effect of viewing angle compensation, for example: in the sub-pixel 1000 ', parallactic angle block 10I ' and 50II ' are that 45 ° at position angle, position angle block 20I ' and 60II ' are 315 ° at position angle for 135 ° at position angle, position angle block 30I ' and 70II ' for 225 ° at position angle, position angle block 40I ' and 80II '.

In addition, adjacent two each other in the sub-pixel of mirror configuration, the total area of each position angle block of same pole angular region piece all essence equates, for instance: each other in the sub-pixel 1000 and sub-pixel 1000 ' of mirror configuration, the block at identical polar angle and same orientation angle, for example 10I and 10I ' block, its both area additions, for example: 10I+10I ', its total area essence equals 20I+20I ', also essence equals 30I+30I ', and also essence equals 40I+40I ', makes it have the characteristic of position angle block area than self-compensating.This moment panel about the quality of image with last downwards angle of visibility identical, do not influence the characteristic of original pixel, and and then avoid as in the prior art, because of considering the long-pending ratio problems of single sub-pixel interior orientation edged surface, and mobile jut bring is to organizing or problems such as for example reaction time that bit errors caused is slack-off, image residue and gray-scale inversion.

Comprehensive, please refer to Fig. 5, because of can maintaining two kinds of different level respectively, the first polar angle block I and the second polar angle block II make liquid crystal molecule produce two kinds of different polar angle blocks, again because have first tilt angle control structure 410 and array base palte 500 to have the pixel electrode 512 of second tilt angle control structure on the colored filter substrate 400, and make liquid crystal molecule produce four kinds of different position angle blocks, for example: position angle block 10I, 50II is 45 ° at position angle, position angle block 20I, 60II is 135 ° at position angle, position angle block 30I, 70II is 225 ° at position angle, position angle block 40I, 80II is 315 ° at position angle; Further, these two kinds of polar angle blocks and four kinds of position angle blocks, can constitute block 10I, 20I, 30I, 40I, 50II, 60II, 70II, the 80II of eight kinds of different optical characteristics mutually after the collocation altogether, and its adjacent subpixels is a left and right sides mutual mapping, therefore, comprehensive two sub-pixels that shine upon mutually just still have two kinds of polar angle blocks, and each polar angle block all has four position angle blocks that area equates, can reach the identical effect of visual angle, the left and right sides quality of image.

Below, the arrangement of components that sub-pixel 1000 is described is reached the mode that how to form polar angle block I, II.

Please refer to Fig. 6, sub-pixel 1000 includes source component 1002, it for example is thin film transistor (TFT), be disposed on the array base palte 500, and this thin film transistor (TFT) has grid 1008, channel layer 1005, source electrode 1004, drain electrode 1006 and reservior capacitor (Cst) 1022, and reservior capacitor (Cst) 1022 is disposed in the middle of the sub-pixel 1000, and metal conducting layer 1020 is disposed on the reservior capacitor (Cst) 1022, and grid 1008 is electrically connected on or directly is integrated in the sweep trace (figure does not indicate), source electrode 1004 is electrically connected on or directly is integrated in the data line 1001,1006 sees through first contact hole 1010 and is electrically connected on the first polar angle block I and drain.

Particularly, metal conducting layer 1020 is divided into three parts, wherein, first partly is that first capacitive coupling electrode 1015, second is second capacitive coupling electrode 1016 partly for plain conductor 1018 and the 3rd partly, and first capacitive coupling electrode 1015 and second capacitive coupling electrode 1016 are disposed at the relative both sides of plain conductor 1018, and can overlap with the relative position of first tilt angle control structure 410 on the first polar angle block I; And plain conductor 1018 is electrically connected at the first polar angle block I through second contact hole 1024; And first capacitive coupling electrode 1015 and second capacitive coupling electrode 1016 respectively with the pixel electrode electric coupling of the second polar angle block II, produce coupling effect (Capacitance Coupling (C.C)), to keep superior display quality.

Specifically, as shown in Figure 6, if high pressure V is provided _GhWith image data via sweep trace (figure do not show) when writing in the sub-pixel structure 1000, this high pressure V _GhVia grid 1008 active block 1002 is opened, again by data line 1001 with image data (V _Data) be electrically connected on the first polar angle block I via the drain electrode 1006 of active block 1002 through first contact hole 1010, make the polar angle block I that wins, maintain level V _DataYet, when image data being write the first polar angle block I, the pixel electrode of the second polar angle block II sees through second contact hole, 1024 electrical ties in metal conducting layer 1020, and this moment the second polar angle block II pixel electrode respectively with first

capacitive coupling electrode

1015 and 1016 electric coupling of second capacitive coupling electrode, produce coupling effect (C.C) and be coupled to level Vcc, and level V _DataLevel V _Cc, at this moment,, make liquid crystal molecule guide shaft at this two block have different inclining to lead direction and cause different polar angle blocks, so form the first kind of polar angle I and the second polar angle block II because the first polar angle block I is different with the level of the second polar angle block II.

Second embodiment

Fig. 7 illustrates the vertical view according to second embodiment of the invention sub-pixel structure 2000.The sub-pixel structure 2000 of present embodiment and the sub-pixel structure 1000 of first embodiment are similar, only both control the mode difference of polar angle block, its main difference is: the sub-pixel structure 2000 of present embodiment has increased by second thin film transistor (TFT) 1003 ', so sub-pixel 2000 is controlled by the first film transistor 1002 ' and second thin film transistor (TFT) 1003 '; Wherein, second thin film transistor (TFT) 1003 ' comprises second grid 1008 ', second source electrode 1023 ', second drain electrode, 1025 ' and second channel layer 1009 '; Second thin film transistor (TFT) 1003 ' sees through second contact hole 1011 ' and is electrically connected on the second polar angle block II ', the transistorized source electrode 1004 ' electrical ties of the first film is in the source electrode 1023 ' of second thin film transistor (TFT), wherein, second grid 1008 ' can be equal to the transistorized grid of the first film.

Particularly, the W/L value of the first film transistor 1002 ' is greater than the W/L value of second thin film transistor (TFT) 1003 '.Second thin film transistor (TFT) 1003 ' that it should be noted that present embodiment can be considered a kind of electric charge releasing unit, for example reservior capacitor; And, electric charge releasing unit 1003 ' is played the part of very important role in sub-pixel structure 2000, particularly, electric charge releasing unit 1003 ' can effectively avoid electric charge to be trapped in the sub-pixel, if this electric charge releasing unit is a capacitor, then can suppress the phenomenon of positive and negative charge unbalance, and then avoid the long-time problem of image residue (image sticking) down that drives by capacitance coupling effect.

The 3rd embodiment

Please refer to Fig. 8 and Fig. 9, the sub-pixel 700 of third embodiment of the invention has block (polar angle domain) I, the II that is shaped as laterally zygomorphic different polar angles, and it utilizes grid 808 or reservior capacitor (Cst) 804 to separate sub-pixel 700 is the block I of first polar angle and the block II of second polar angle, and the pixel electrode of the block II of the block I of first polar angle and second polar angle is discontinuous structure.

In the present embodiment, please refer to Fig. 8, polar angle block I ', II ' that neighbouring sub-pixel 700 ' and sub-pixel 700 have mirror image, and the configuration of the position angle block of mirror image, to reach the effect of viewing angle compensation, for example, in the sub-pixel 700 ': position angle block 10II ' and 30II ' are that 45 ° at position angle, position angle block 20 ' II ' and 40 ' II ' are 315 ° at position angle for 135 ° at position angle, position angle block 50I ' and piece 70 ' I ' for 225 ° at position angle, position angle block 60I ' and 80I '.

In addition, neighbouring two each other in the sub-pixel of mirror configuration, each its total area of position angle block of same pole angular region piece all essence equates, make and have the characteristic of position angle block area than self-compensating, for instance: each other in the sub-pixel 700 and sub-pixel 700 ' of mirror configuration, the block at identical polar angle and same orientation angle, for example 10I and 30I block, both area additions, for example: 10I+30I, its total area essence equals 20I+40I, and also essence equals 50I '+70I ', and also essence equals 60I '+80I ' to reach the effect of viewing angle compensation.

Comprehensive, in the present embodiment, please refer to Fig. 8, the first polar angle block I and the second polar angle block II can maintain two kinds of different level respectively, and make liquid crystal molecule produce two kinds of different polar angle blocks, again because colored filter substrate 400, comprise first tilt angle control structure 410 and array base palte 500 and have second tilt angle control structure 512, and make liquid crystal molecule produce four kinds of different position angle blocks, for example: position angle block 10I and position angle block 30I are 45 ° at position angle, position angle block 20I and position angle block 40I are 135 ° at position angle, position angle block 50II and position angle block 70II are 225 ° at position angle, position angle block 60II and position angle block 80II are 315 ° at position angle; Furthermore, these two kinds of polar angle blocks and four kinds of position angle blocks, can constitute block 10I, 20I, 30I, 40I, 50II, 60II, 70II, the 80II of eight kinds of different optical characteristics mutually after the collocation altogether, and its adjacent subpixels is a left and right sides mutual mapping, therefore, comprehensive two sub-pixels that shine upon mutually just still have two kinds of polar angle blocks, and each polar angle block all has four position angle blocks that area equates, can reach the identical effect of visual angle, the left and right sides quality of image.

Please refer to Fig. 9, in the sub-pixel 700, include source component 800, is thin film transistor (TFT) for example, is disposed on the array base palte 500, and this thin film transistor (TFT) has grid 808, channel layer 801, source electrode 803, drain electrode 706 and reservior capacitor (Cst) 804.Wherein, it is the block I of first polar angle and the block II of second polar angle that grid 808 or reservior capacitor (Cst) 804 separates sub-pixel 700, and the pixel electrode of the block I of first polar angle and the block II of second polar angle is discontinuous structure, and grid 808 electric wires are connected in or directly are integrated in the sweep trace (figure indicate), and source electrode 803 is electrically connected on or directly be integrated in the data line 708.In addition, drain electrode 706 is divided into two parts, the first 702 of drain electrode sees through contact hole 806 and electrically is electrically connected on the first polar angle block I, the second portion 704 of drain electrode is electrically connected on the capacitive coupling electrode 802 under the second polar angle block II pixel electrode, and the pixel electrode electrical couplings of this capacitive coupling electrode 802 and the second polar angle block II, produce coupling effect (C.C), at this moment, because the first polar angle block I is different with the level of the second polar angle block II, make liquid crystal molecule guide shaft at this two block have different inclining to lead direction and cause different polar angle blocks, so form the first kind of polar angle I and the second polar angle block II.

Particularly, as shown in Figure 9, if high pressure V is provided _GhImage data is write in the sub-pixel structure 700 this high pressure V via sweep trace (figure does not show) _GhVia grid 808 active block 800 is opened, again by data line 708 with image data (V _Data) partly 702 see through contact hole 806 and be electrically connected on the first polar angle block I via first of the drain electrode of active block 800, make the polar angle block I that wins, maintain level V _DataYet, when image data being write the first polar angle block I, the second portion 704 of drain electrode is electrically connected on the capacitive coupling electrode 802 under the second polar angle block II pixel electrode, and the pixel electrode electrical couplings of this capacitive coupling electrode 802 and the second polar angle block II produces coupling effect (C.C) and is coupled to level V _Cc, and level V _DataLevel V _Cc, at this moment,, make liquid crystal molecule guide shaft at this two block have different inclining to lead direction and cause different polar angle blocks, so form the first kind of polar angle I and the second polar angle block II because the first polar angle block I is different with the level of the second polar angle block II.

The 4th embodiment

Figure 10 illustrates and is the vertical view according to fourth embodiment of the invention sub-pixel structure 900.The sub-pixel structure 900 of present embodiment and the sub-pixel structure 700 of the 3rd embodiment are similar, only both control the mode difference of polar angle block, its main difference is: the sub-pixel structure 900 of present embodiment, increased by second thin film transistor (TFT) 809 ', so sub-pixel 900 is controlled by the first film transistor 800 ' and second thin film transistor (TFT) 809 ', wherein, second thin film transistor (TFT) 809 ' comprises second grid 808 ', second source electrode 803 ', second drain electrode, 705 ' and second channel layer 807 ', wherein, second grid 808 ' can be equal to the grid 808 of the first film transistor 800 '; And second thin film transistor (TFT) 809 ' sees through second contact hole 805 ' and is electrically connected on the second polar angle block II, the transistorized source electrode 803 of the first film is electrically connected at the source electrode 803 ' of second thin film transistor (TFT), and the W/L value of the first film transistor 800 ' is greater than the W/L value of second thin film transistor (TFT) 809 '.Second thin film transistor (TFT) 809 ' of present embodiment can be considered a kind of electric charge releasing unit, for example reservior capacitor.

It should be noted that, this electric charge releasing unit 809 ' is played the part of very important role in sub-pixel structure 900, particularly, electric charge releasing unit 809 ' can effectively avoid electric charge to be trapped in the sub-pixel, if this electric charge releasing unit is a capacitor, then can suppress the phenomenon of positive and negative charge unbalance, and then avoid the problem of image residue (image retention) by capacitance coupling effect.

The 5th embodiment

Present embodiment is the application of preceding four kinds of embodiment, in a kind of multiple block vertically aligned liquid crystal display sub-pixel structure, and sub-pixel and mirror image arrangement of subpixels mode thereof.For instance, please refer to Fig. 5 and Figure 11, if first embodiment and the described first sub pixel structure 1000 of second embodiment are legal (P) sub-pixel, the mirror configuration 1000 ' of the first sub pixel structure is egative forme (N) sub-pixel; In like manner, please refer to Fig. 8 and Figure 12, the second sub pixel structure 700 as the 3rd embodiment and the 4th embodiment is legal (P) sub-pixel, the mirror configuration 700 ' of the second sub pixel structure is egative forme (N) sub-pixel, then in the multiple block vertically aligned liquid crystal display pixel of present embodiment, the alignment arrangements mode of sub-pixel can be as Figure 13, the mode of its arrangement is: adjacent subpixels is the periodicity configuration of mirror image (sub-pixel inversion) all each other, and can be up and down sub-pixel mirror image each other, or left and right sides sub-pixel mirror image each other; More specifically, three adjacent these sub-pixels can be represented redness, green and blue respectively, and and legal (P) adjacent sub-pixel be egative forme (N) sub-pixel; The sub-pixel adjacent with egative forme (N) is legal (P) sub-pixel.

The 6th embodiment

Figure 14 illustrates in the multiple block vertically aligned liquid crystal display pixel of present embodiment, the configuration of arrangement of subpixels.Present embodiment and the 5th embodiment are similar, only both main difference is the sub-pixel of present embodiment with adjacent continuous three identical versions, the sub-pixel of for example continuous three legal copies (P) or continuous three egative formes (N) be a subsection A and about it or another neighbouring its mirror configuration sub-pixel subsection do periodic arrangement (dot-line inversion); More specifically, for example adjacent with legal (P) sub-pixel subsection is egative forme sub-pixel (N) subsection; Adjacent with egative forme sub-pixel (N) subsection is legal sub-pixel (P) subsection; And in this sub-pixel subsection, continuous three identical legal copies (P) or identical egative forme (N) sub-pixel can be represented redness, green and blue respectively.

The 7th embodiment

Please refer to Figure 15, present embodiment and the 6th embodiment are similar, only both main difference is, present embodiment is about a subsection B and its with identical legal copy (P) sub-pixel of continuous three adjacent multiple of the left and right sides or identical egative forme (N) sub-pixel or another neighbouring sub-pixel subsection is done periodic mirror configuration mode (two dot-line inversion), and three multiple can be six, nine sub-pixels with a version sub-pixel ... etc.; For example to illustrate continuous six identical version sub-pixels be about a sub-pixel unit and its to Figure 15 or periodic mirror configuration is done by another neighbouring sub-pixel unit; More specifically, three a multiple adjacent equidirectional sub-pixel is all legal copy (P) sub-pixel, and with this multiple of three sub-pixel be a sub-pixel subsection and up and down or another sub-pixel subsection of adjacent three the multiple adjacent subpixels in the left and right sides do the periodicity configuration of mirror image; For example adjacent with legal (P) sub-pixel subsection is egative forme (N) sub-pixel subsection; Adjacent with egative forme (N) sub-pixel subsection is legal (P) sub-pixel subsection; And these three adjacent same version sub-pixels can be represented redness, green and blue respectively.

The 8th embodiment

Please refer to Figure 16, present embodiment and the 7th embodiment are similar, only both main difference be present embodiment with continuous three an adjacent multiple sub-pixel of the left and right sides be a subsection with and on or below adjacent same edition and be a big sub-pixel C of unit with the sub-pixel subsection of quantity, about doing with another adjacent big unit or the periodically configuration (two dot-row inversion) of mirror image up and down, and this multiple of three can be six, nine sub-pixels with a version sub-pixel ... etc.; For example to illustrate with continuous three identical legal copies (P) sub-pixel be a subsection sub-pixel to Figure 16, be used as the big unit of a legal copy (P) sub-pixel with its adjacent another legal copy (P) subsection sub-pixel in below, do periodic mirror configuration mode with quantity; More specifically, for example adjacent with big unit legal copy (P) sub-pixel is big unit egative forme sub-pixel (N); Adjacent with big unit egative forme (N) sub-pixel is big unit legal copy (P) sub-pixel; And these three adjacent equidirectional sub-pixels can be represented redness, green and blue respectively.

Comprehensive, the pixel design of mirror mutually about the present invention mainly utilizes or up and down, the gray-scale inversion phenomenon that needn't consideration group or bit errors be caused, make it have the characteristic of position angle block area than self-compensating, because the quality of image with last downwards angle of visibility about panel of the present invention is identical, please refer to Figure 17, the graph of relation that varies by angle of view for the gamma curve of the multiple block vertically aligned liquid crystal display of first embodiment of the invention, curve A, B, it is 0 ° that C is respectively the visual angle, the gamma curve of LOOK RIGHT and LOOK LEFT can be found the dwindling of obvious difference of the gamma curve at visual angle, the left and right sides; And do not influence the characteristic of original pixel, for example problems such as reaction time, image residue and gray-scale inversion.

Though the present invention discloses as above with several preferred embodiments; right its is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; when can changing arbitrarily and retouching, so protection scope of the present invention is as the criterion when looking claims person of defining.

Claims

1. a dot structure is applicable to multiple block vertically aligned liquid crystal display, comprising:

Pel array comprises the sub-pixel of a plurality of adjacent arrangements;

First substrate has first tilt angle control structure; And

Second substrate has second tilt angle control structure;

Wherein, this first tilt angle control structure is configured to be staggered with this second tilt angle control, is a plurality of azimuthal blocks to separate this sub-pixel;

Wherein, this sub-pixel comprises the block of different polar angles, and this sub-pixel and adjacent sub-pixel have the polar angle block of mirror configuration and azimuthal block of mirror configuration, adjacent subpixels all each other mirror image the periodicity configuration and comprise legal sub-pixel and egative forme sub-pixel;

Wherein in two adjacent mirror configuration sub-pixels, the total area of each the position angle block in the piece of same pole angular region is identical.

2. dot structure as claimed in claim 1, wherein this sub-pixel comprises four kinds of azimuthal blocks.

3. dot structure as claimed in claim 2, wherein this sub-pixel comprises 45 °, 135 °, 225 °, reaches 315 ° of azimuthal blocks.

4. dot structure as claimed in claim 1, wherein this sub-pixel comprises the block of two kinds of polar angles.

5. dot structure as claimed in claim 4, wherein this sub-pixel comprises the block of two kinds of polar angles, and the shape symmetry.

6. dot structure as claimed in claim 4, wherein this sub-pixel comprises the block of two kinds of polar angles, and shape is asymmetric.

7. dot structure as claimed in claim 1, wherein the mirror configuration of this adjacent subpixels comprises that also the mirror image with three these sub-pixels and three these sub-pixels becomes periodically configuration.

8. dot structure as claimed in claim 7, wherein these three sub-pixels comprise redness, green and blue.

9. dot structure as claimed in claim 1, wherein the mirror configuration of this adjacent subpixels comprises that also the mirror image with this sub-pixel more than three and this sub-pixel more than three becomes periodically configuration.

10. dot structure as claimed in claim 9, wherein these three sub-pixels comprise redness, green and blue.

11. dot structure as claimed in claim 1, wherein this first kind of tilt angle control structure independently selected from jut or slit with second tilt angle control structure.

12. dot structure as claimed in claim 1, wherein the pixel electrode of block that should the difference polar angle in this sub-pixel is discontinuous structure.

13. a dot structure is applicable to multiple block vertically aligned liquid crystal display, comprising:

Pel array comprises the sub-pixel of a plurality of adjacent arrangements;

Liquid crystal layer is arranged between this first substrate and this second substrate;

Wherein, the sub-pixel of this second substrate comprises the first polar angle block and the second polar angle block, and this first district polar angle block and this second polar angle block to keep voltage different, and more divide into a plurality of position angles block on the block of this first polar angle block and this second polar angle;

Wherein, between this polar angle block of this sub-pixel that at least one is adjacent be between mirror configuration and this position angle block for mirror configuration, adjacent subpixels all each other mirror image the periodicity configuration and comprise legal sub-pixel and egative forme sub-pixel;

Active block is electrically connected on this first polar angle block of this second substrate through data line; And

Capacitive coupling electrode be disposed under this second polar angle block, and this capacitive coupling electrode is electrically connected on this data line through this active block;

Wherein in these two adjacent mirror configuration sub-pixels, the total area of each the position angle block in the piece of same pole angular region is identical.

14. as the dot structure of claim 13, wherein this active block is the first film transistor.

15. as the dot structure of claim 13, wherein the pixel electrode of this first polar angle block and this second polar angle block is discontinuous structure.

16. as the dot structure of claim 13, wherein this sub-pixel comprises four kinds of azimuthal blocks.

17. as the dot structure of claim 13, wherein this sub-pixel comprises 45 °, 135 °, 225 ° and 315 ° of azimuthal blocks.

18. as the dot structure of claim 13, two of this sub-pixel kinds of polar angle block shape symmetries wherein.

19. as the dot structure of claim 13, wherein two of this sub-pixel kinds of polar angle block shapes are asymmetric.

20. as the dot structure of claim 13, wherein the mirror configuration of this adjacent subpixels comprises that also the mirror image with three these sub-pixels and three these sub-pixels becomes periodically configuration.

21. as the dot structure of claim 20, wherein these three sub-pixels comprise redness, green and blue.

22. as the dot structure of claim 13, wherein the mirror configuration of this adjacent subpixels comprises that also the mirror image with this sub-pixel more than three and this sub-pixel more than three becomes periodically configuration.

23. as the dot structure of claim 22, wherein these three sub-pixels comprise redness, green and blue.

24., wherein dispose second kind of tilt angle control structure on this first substrate on configuration first kind of tilt angle control structure and this second substrate as the dot structure of claim 13.

25. as the dot structure of claim 24, wherein this first kind of tilt angle control structure independently selected from jut or slit with second tilt angle control structure.

26. as the dot structure of claim 13, wherein also comprise the electric charge releasing unit, be electrically connected on this second polar angle block of this second substrate through data line.

27. as the dot structure of claim 26, wherein this electric charge releasing unit is a capacitor.