CN100376995C - Multi-domain vertical alignment type liquid crystal display device - Google Patents
Multi-domain vertical alignment type liquid crystal display device Download PDFInfo
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- CN100376995C CN100376995C CNB2004100520125A CN200410052012A CN100376995C CN 100376995 C CN100376995 C CN 100376995C CN B2004100520125 A CNB2004100520125 A CN B2004100520125A CN 200410052012 A CN200410052012 A CN 200410052012A CN 100376995 C CN100376995 C CN 100376995C
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Abstract
The present invention relates to a multi-domain vertical orientation type liquid crystal display device which comprises a first substrate, a second substrate, liquid crystal molecules, a plurality of first convex blocks and a plurality of second convex blocks, wherein the first substrate is opposite to the second substrate, the liquid crystal molecules are arranged between the first substrate and the second substrate, the first convex blocks are arranged on the first substrate, and the second convex blocks are arranged on the second substrate. The first convex blocks and the second convex blocks are in curve distribution, and the first convex blocks and the second convex blocks comprise a first curve part and a second curve part. The first curve part and the second curve part comprise a curve part with an infinite curvature radius, and the first curve part and the second curve part are connected at the infinite point of the curvature radius.
Description
[technical field]
The present invention relates to a kind of multidomain vertical orientation formula liquid crystal indicator, especially a kind of multidomain vertical orientation formula (Multi-Domain Vertical Alignment, MVA) liquid crystal indicator.
[background technology]
Liquid crystal molecule in the liquid crystal indicator itself is not luminous, and it is by being reversed the ratio that passes through that changes light by the electric field controls liquid crystal molecule, and presents image.In traditional liquid crystal indicator, on two substrate of glass, form electrode, form and the perpendicular electric field of substrate surface.Because liquid crystal molecule has electrically, therefore under this effect of electric field, liquid crystal molecule will be orientated perpendicular to substrate surface, because the influence of aspects such as interaction force between liquid crystal molecule and gravity, make that the orientation of liquid crystal molecule can not be fully perpendicular to substrate surface, and the angle of inclination of each liquid crystal molecule is incomplete same, thereby, when the observer observes from different perspectives, different display effects will be observed, the visual angle defective of Here it is liquid crystal indicator.
Multidomain vertical orientation formula liquid crystal indicator is by being divided into a plurality of zones with a pixel cell, and make liquid crystal molecular orientation direction difference in each zone, improve the overall viewing angle characteristic of this pixel cell, thereby improve the viewing angle characteristic of this liquid crystal indicator.
See also Fig. 1 and Fig. 2, disclosed China's Mainland patented claim on January 23 in 2002 discloses a kind of prior art multidomain vertical orientation formula liquid crystal indicator for the 01st, 121, No. 750.This multidomain vertical orientation formula liquid crystal indicator 1 comprises one first substrate 11 and second substrate 12 that are oppositely arranged, be separately positioned in this first substrate 11 and second substrate 12 and be parallel to each other and projection 111,121, the liquid crystal molecule 16 of staggered orientation.In addition, this multidomain vertical orientation formula liquid crystal indicator 1 also comprises pixel electrode, public electrode, alignment film, thin film transistor (TFT) (Thin Film Transistor, TFT), phase compensation film, light polarization device etc., but said modules does not indicate in Fig. 1 and Fig. 2.This liquid crystal molecule 16 be dielectric anisotropy negative be the liquid crystal material of minus.
Please consulting Fig. 1 again, is not during making alive, the synoptic diagram of this multidomain vertical orientation formula liquid crystal indicator 1.Under this state, thin film transistor (TFT) is a closed condition, liquid crystal molecule 16 orientations in the zone between projection 111 and projection 121 are approximately perpendicular to first substrate 11 and second substrate 12, near the orientation of the liquid crystal molecule 16 projection 111 and the projection 121 is approximately perpendicular to the inclined-plane of this projection 111 and 121, because light can not produce birefringence when major axis (being the optical axis of the liquid crystal molecule) direction of liquid crystal molecule 16 is transmitted, therefore light can not change the polarization state of light by liquid crystal layer, vertical mutually because be separately positioned on the polarization axle of two light polarization devices in this first substrate 11 and second substrate 12 again, therefore this moment, this multidomain vertical orientation formula liquid crystal indicator 1 was in dark attitude.
Please consult Fig. 2 again, when being making alive, the synoptic diagram of this multidomain vertical orientation formula liquid crystal indicator 1.Under this state, thin film transistor (TFT) is an open mode, liquid crystal molecule 16 is applied in an electric field perpendicular to first substrate 11 and second substrate 12, because liquid crystal molecule 16 is that dielectric anisotropy is the liquid crystal material of bearing, under electric field action, this liquid crystal molecule 16 will be added the restriction of projection 111 and projection 121 to the direction deflection vertical with direction of an electric field, make the orientation of all liquid crystal molecules 16 between first substrate 11 and second substrate 12 all be approximately perpendicular to the inclined-plane of this projection 111 and projection 121.At this moment, there is certain angle in the long axis direction of incident light and liquid crystal molecule 16, thereby, this incident light will change through liquid crystal molecule 16 its polarization states of back, the part luminous energy will be arranged from being arranged on first substrate, 11 glazing polarising means outgoing, therefore this moment, this multidomain vertical orientation formula liquid crystal indicator 1 was in bright attitude.
Another kind of prior art multidomain vertical orientation formula liquid crystal indicator as shown in Figures 3 and 4.Seeing also Fig. 3, is thin film transistor (TFT) when being open mode, the direction of orientation synoptic diagram of the liquid crystal molecule 36 in the pixel region of this multidomain vertical orientation formula liquid crystal indicator 3.Fig. 4 is a thin film transistor (TFT) when being open mode, the translucent effect figure of this multidomain vertical orientation formula liquid crystal indicator 3.The part that projection 311 and projection 321 are positioned at this pixel region is a broken line shape projection structure, and pixel electrode 34 is transparency electrodes, and each pixel region is divided into three strip sub-pixs of red, green, blue zone (not indicating).In this multidomain vertical orientation formula liquid crystal indicator 3, the gap area between this projection 311 and the projection 321 is divided into A, B, C, D four zones, and the orientation of the liquid crystal molecule in each zone roughly differs 90 degree mutually.Thereby when thin film transistor (TFT) was open mode, the liquid crystal molecule 36 of this multidomain vertical orientation formula liquid crystal indicator 3 had a plurality of orientations, and its viewing angle characteristic compensates mutually, so its overall viewing angle characteristic is improved.Zone 141 is bending zones of this broken line shape projection structure.As shown in Figure 4, this zone 141 does not have bigger dark space, and its penetrance is higher.When thin film transistor (TFT) is open mode, the orientation of the liquid crystal molecule in this zone 141 is approximately perpendicular to the inclined-plane of this projection 311 and 321, and the projection of liquid crystal molecule on this second substrate this moment and the polarization axle bevel of two light polarization devices, there is an angle in the long axis direction that is incident light and liquid crystal molecule 36, thereby this polarization of incident light attitude will change.Therefore when multidomain vertical orientation formula liquid crystal indicator is in bright attitude, the light at regional 141 places will can not absorbed by two light polarization devices, exist and do not have the dark space.
But this pixel region only is split into A, B, C, D four zones, thereby can't make the observer obtain identical display effect when all angles are observed, so still there is certain visual angle defective in this multidomain vertical orientation formula liquid crystal indicator 3.
Can't make the observer obtain the defective of identical display effect when all angles are observed for solving above-mentioned liquid crystal indicator, the industry proposition is a kind of carries out improved multidomain vertical orientation formula liquid crystal indicator to the projection orientation, as Fig. 5 and shown in Figure 6.Seeing also Fig. 5, is thin film transistor (TFT) when being open mode, the orientation synoptic diagram of the liquid crystal molecule 26 in the pixel region of this multidomain vertical orientation formula liquid crystal indicator 2.Fig. 6 is a thin film transistor (TFT) when being open mode, the translucent effect figure of this multidomain vertical orientation formula liquid crystal indicator 2.The part that projection 211 and projection 221 are positioned at this pixel region is a shaped form projection structure, and pixel electrode 24 is arranged on the second suprabasil transparency electrode, and each pixel region is divided into three strip sub-pixs of red, green, blue zone (not indicating).These a plurality of projections 211 and projection 221 are parallel to each other and are staggered, and projection 211 and the projection 221 corresponding with each pixel region are shaped forms, promptly the bending angle of this projection 211 and projection 221 is continually varyings, and 90 degree bendings are only arranged unlike aforementioned multidomain vertical orientation formula LCD middle polyline shape projection, thereby, when on-load voltage is on public electrode and pixel electrode 24, under restriction perpendicular to the electric field of this first substrate and second substrate and this projection 211 and projection 221, liquid crystal molecule will be orientated on a plurality of continuous directions, can make the observer when all angles are observed, obtain identical display effect, so its viewing angle characteristic is better.The zone 142 is bigger zones of curvature of this projection 211 and projection 221, by shown in Figure 6, forms oval dark spaces in the zone 142, and is promptly should zone 142 translucent effects very undesirable.When thin film transistor (TFT) is open mode, liquid crystal molecule 26 is applied in an electric field perpendicular to first substrate and second substrate, because liquid crystal molecule 26 is that dielectric anisotropy is the liquid crystal material of bearing, this liquid crystal molecule 26 will be to the direction deflection vertical with direction of an electric field, add the restriction of projection 211 and projection 221, make the orientation of all liquid crystal molecules 26 between the substrate and second substrate of winning be approximately perpendicular to the inclined-plane of this projection 211 and projection 221.At this moment, there is an angle in the long axis direction of incident light and liquid crystal molecule 26, thereby, this polarization of incident light attitude will change, therefore, the part luminous energy will be arranged from being arranged on the light polarization device outgoing of first substrate, therefore this moment, this multidomain vertical orientation formula liquid crystal indicator 2 was in bright attitude.The projection 211 of this multidomain vertical orientation formula liquid crystal indicator 2 and projection 221 in the bigger zone of curvature since the tangential direction of curve parallel with the polarization axle of a light polarization device of this multidomain vertical orientation formula liquid crystal indicator 2, and light can not produce birefringence during along the transmission of the long axis direction of liquid crystal molecule 26, therefore the light of this location can not change polarization state, vertical mutually because of the polarization axle that is separately positioned on first substrate and second suprabasil two light polarization devices again, therefore, the bigger zone of curvature of this projection 211 and projection 221 is in dark attitude, be the dark space, make the display effect variation.
[summary of the invention]
There is the dark space in multidomain vertical orientation formula liquid crystal indicator in the prior art in order to overcome, thereby the relatively poor defective of display effect the invention provides a kind of do not have dark space thereby the preferable multidomain vertical orientation formula liquid crystal indicator of display effect.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of multidomain vertical orientation formula liquid crystal indicator is provided, it comprises first substrate and second substrate that is oppositely arranged, liquid crystal molecule between this first substrate and second substrate, a plurality of this first substrate and second suprabasil first projection and second projections of being separately positioned on, wherein, these a plurality of first projections and the curved distribution of second projection, and this first projection and second projection all comprise one first curved portion and one second curved portion, it is infinitely-great curved portion and bending angle continually varying curved portion that this first curved portion and this second curved portion all comprise a radius-of-curvature, and this first curved portion is joined in the unlimited general goal of radius-of-curvature with this second curved portion.
Another technical scheme that technical solution problem of the present invention is adopted is: a kind of multidomain vertical orientation formula liquid crystal indicator is provided, it comprises first substrate and second substrate that is oppositely arranged, liquid crystal molecule between this first substrate and second substrate, a plurality of this first substrate and second suprabasil projection and breach of being separately positioned on, wherein, these a plurality of projections and the curved distribution of breach, and this projection and breach all comprise one first curved portion and one second curved portion, it is infinitely-great curved portion and bending angle continually varying curved portion that this first curved portion and this second curved portion all comprise a radius-of-curvature, and this first curved portion is joined in the unlimited general goal of radius-of-curvature with this second curved portion.
The another technical scheme that technical solution problem of the present invention is adopted is: a kind of multidomain vertical orientation formula liquid crystal indicator is provided, it comprises first substrate and second substrate that is oppositely arranged, liquid crystal molecule between this first substrate and second substrate, a plurality of this first substrate and second suprabasil breach and projections of being separately positioned on, wherein, wherein, these a plurality of breach and the curved distribution of projection, and this breach and projection all comprise one first curved portion and one second curved portion, it is infinitely-great curved portion and bending angle continually varying curved portion that this first curved portion and this second curved portion all comprise a radius-of-curvature, and this first curved portion is joined in the unlimited general goal of radius-of-curvature with this second curved portion.
The also technical scheme that technical solution problem of the present invention is adopted is: a kind of multidomain vertical orientation formula liquid crystal indicator is provided, it comprises first substrate and second substrate that is oppositely arranged, liquid crystal molecule between this first substrate and second substrate, a plurality of this first substrate and second suprabasil first breach and second breach of being separately positioned on, wherein, these a plurality of first breach and the curved distribution of second breach, and this first breach and second breach all comprise one first curved portion and one second curved portion, it is infinitely-great curved portion and bending angle continually varying curved portion that this first curved portion and this second curved portion all comprise a radius-of-curvature, and this first curved portion is joined in the unlimited general goal of radius-of-curvature with this second curved portion.
Compared to prior art, in the multidomain vertical orientation formula liquid crystal indicator provided by the invention, this the first projection/breach and second projection/breach is to be staggered, and first projection corresponding with each pixel region/breach and second projection/breach are shaped forms, promptly the bending angle of this first projection/breach and second projection/breach is a continually varying, and this first projection/breach and second projection/breach all comprises one first curved portion and one second curved portion, it is infinitely-great curved portion that this first curved portion and this second curved portion all comprise a radius-of-curvature, and joins in the unlimited general goal of radius-of-curvature.Thereby, when the ON state, under restriction perpendicular to the broken line portion of the electric field of this first substrate and second substrate and this first projection/breach and second projection/breach, liquid crystal molecule in this broken line portion zone will be orientated on the direction perpendicular to first projection/breach and second projection/breach, therefore, this zone liquid crystal molecule projection on second substrate will be not can be parallel with the polarization axle of the light polarization device of substrate up and down.There is certain angle in the long axis direction that is incident light and liquid crystal molecule, thereby this polarization of incident light attitude will change, and promptly this zonal ray will can not absorbed by the light polarization device, will not have the dark space and exist, and has good display.So compared to the multidomain vertical orientation formula liquid crystal indicator of prior art, the preferable portrait quality of multidomain vertical orientation formula liquid crystal indicator tool of the present invention.
[description of drawings]
Fig. 1 is the not synoptic diagram of duty of living in during making alive of a kind of prior art multidomain vertical orientation formula liquid crystal indicator.
The synoptic diagram of duty of living in when Fig. 2 is a multidomain vertical orientation formula liquid crystal indicator making alive shown in Figure 1.
The orientation synoptic diagram of the liquid crystal molecule when Fig. 3 is another kind of multidomain vertical orientation formula liquid crystal indicator making alive in one pixel region.
The translucent effect figure of duty of living in when Fig. 4 is a multidomain vertical orientation formula liquid crystal indicator making alive shown in Figure 3.
The synoptic diagram of duty of living in when Fig. 5 is another kind of prior art multidomain vertical orientation formula liquid crystal indicator making alive.
The translucent effect figure of duty of living in when Fig. 6 is a multidomain vertical orientation formula liquid crystal indicator making alive shown in Figure 5.
Fig. 7 is the distribution of electrodes synoptic diagram of multidomain vertical orientation formula liquid crystal indicator one pixel region of the present invention.
Fig. 8 is the not synoptic diagram of duty of living in during making alive of multidomain vertical orientation formula liquid crystal indicator first embodiment of the present invention.
The synoptic diagram of duty of living in when Fig. 9 is the multidomain vertical orientation formula liquid crystal indicator first embodiment making alive of the present invention.
The synoptic diagram of duty of living in when Figure 10 is the multidomain vertical orientation formula liquid crystal indicator second embodiment making alive of the present invention.
The synoptic diagram of duty of living in when Figure 11 is multidomain vertical orientation formula liquid crystal indicator the 3rd an embodiment making alive of the present invention.
The synoptic diagram of duty of living in when Figure 12 is multidomain vertical orientation formula liquid crystal indicator the 4th an embodiment making alive of the present invention.
[embodiment]
Multidomain vertical orientation formula liquid crystal indicator first embodiment of the present invention such as Fig. 7, Fig. 8 and shown in Figure 9, multidomain vertical orientation formula liquid crystal indicator 4 comprises and is oppositely arranged first substrate 41 and second substrate 42, be arranged on the liquid crystal molecule 46 between this two substrate, a plurality of gate line 45 and data lines 47 that are arranged in second substrate 42, be separately positioned on public electrode 43 and a plurality of pixel electrode 44 in this first substrate 41 and second substrate 42, be separately positioned on first projection 411 and second projection 421 on this public electrode 43 and the pixel electrode 44, this first projection 411 is parallel being staggered with second projection 421, and this first projection 411 and second projection 421 are shaped forms and include a broken line portion 300.
These a plurality of gate lines 45 and data line 47 form a plurality of rectangular pixels zone, and this pixel region extends to first substrate 41 along the direction perpendicular to this second substrate 42.
This liquid crystal molecule 46 is negative type liquid crystals, and this public electrode 43 and pixel electrode 44 all adopt transparent conductive material to make, as tin indium oxide (Indium Tin Oxide, ITO) or zinc-tin oxide (IndiumZinc Oxide, IZO) etc.This multidomain vertical orientation formula liquid crystal indicator 4 also comprises alignment film, phase compensation film, light polarization device etc., but all less than in Fig. 7, Fig. 8 and Fig. 9, indicating.
Please consulting Fig. 7 again, is the distribution of electrodes figure of these multidomain vertical orientation formula liquid crystal indicator 4 one pixel regions.Gate line 45 is vertical mutually with data line 47, is provided with dielectric film (figure does not show) between this gate line 45 and the data line 47, and thin film transistor (TFT) 40 is arranged on gate line 45 and data line 47 infalls.This thin film transistor (TFT) 40 has one source pole (figure does not show) to be connected to data line 47, has a grid (figure does not show) to be connected to gate line 45, and a pixel electrode 44 is set in each pixel region.
Each pixel electrode 44 is grown crosswise and is about 100 μ m, and lengthwise is about 300 μ m, and one second projection 421 is set on each pixel electrode 44, is about 7 μ m corresponding to the width of second projection of pixel electrode 44.This public electrode 43 is arranged on this first substrate, 41 contiguous liquid crystal molecule 46 1 sides, and this first projection 411 is arranged on this public electrode 43 contiguous liquid crystal molecule 46 1 sides, and this first projection 411 is interlaced parallel with second projection 421.Corresponding to a pixel region, this first projection 411 is approximate circle arcs.This first projection 411 wide about 10 μ m, high about 1.5 μ m.The xsect of this first projection 411 and second projection 421 is a triangle.
Please consulting Fig. 8 again, is not during making alive, the synoptic diagram of these multidomain vertical orientation formula liquid crystal indicator 4 duties of living in.Under this state, thin film transistor (TFT) is the OFF state, because alignment film, the restriction of first projection 411 and second projection 421, thereby, the orientation of the liquid crystal molecule 46 in zone is approximately perpendicular to this first substrate 41 and second substrate 42 between first projection 411 and second projection 421, the orientation that is positioned near the liquid crystal molecule 46 this first projection 411 and second projection 421 is approximately perpendicular to the inclined-plane of this first projection 411 and second projection 421, because when light transmits along molecular axis (being the optical axis of the liquid crystal molecule) direction of liquid crystal molecule 46, can not produce birefringence, vertical mutually because of being arranged at this first substrate 41 respectively again with the polarization axle of two light polarization devices of second substrate 42, therefore, this moment, this multidomain vertical orientation formula liquid crystal indicator 4 was in dark attitude.
Please consulting Fig. 9 again, is not during making alive, the synoptic diagram of these multidomain vertical orientation formula liquid crystal indicator 4 duties of living in.Under this state, thin film transistor (TFT) is the ON state, apply electric field on the liquid crystal molecule 46 perpendicular to first substrate 41 and second substrate 42, because liquid crystal molecule 46 is negative type liquid crystals, under electric field action, this liquid crystal molecule 46 will be added the restriction of projection 411 and 421 to the direction deflection vertical with direction of an electric field, make the orientation of all liquid crystal molecules 46 between this first substrate 41 and second substrate 42 be approximately perpendicular to the inclined-plane of this projection 411 and 421.At this moment, there is certain angle in the molecular axis direction of incident light and liquid crystal molecule 46, thereby, this polarization of incident light attitude will change, therefore, the part luminous energy will be arranged from being arranged on the light polarization device outgoing of this first substrate, promptly this multidomain vertical orientation formula liquid crystal indicator 4 is in bright attitude.
Because corresponding to each pixel region, wherein, this first projection 411 comprises one first curved portion 481, one second curved portion 482, it is infinitely-great curved portion 483 that this first curved portion 481 comprises a first curvature radius, it is infinitely-great curved portion 484 that this second curved portion 482 comprises a second curvature radius, this first curvature radius is that infinitely-great curved portion 483 and this second curvature radius are that infinitely-great curved portion 484 intersects, this second projection 421 comprises one first curved portion 491, one second curved portion 492, it is infinitely-great curved portion 493 that this first curved portion 491 comprises a first curvature radius, it is infinitely-great curved portion 494 that this second curved portion 492 comprises a second curvature radius, and this first curvature radius is that infinitely-great curved portion 493 is that infinitely-great curved portion 494 intersects with this second curvature radius.This first projection 411 and second projection 421 all have more continuous bending angle, thereby, when on public electrode 43 and the pixel electrode 44 during on-load voltage, under the restriction perpendicular to the electric field of this first substrate 41 and second substrate 42 and this first projection 411 and second projection 421, liquid crystal molecule 46 will be in a plurality of continuous directions orientation that tilts.The present invention is infinitely-great curved portion 493 and 494 and be a continuous curve unlike the shaped form projection in the prior art multidomain vertical orientation formula liquid crystal indicator with two crossing radius-of-curvature, thereby, when on public electrode and the pixel electrode during on-load voltage, be under the restriction of infinitely-great curved portion 493 and 494 perpendicular to the electric field of this first substrate and second substrate and two radius-of-curvature that intersect of this first projection and second projection, in this two radius-of-curvature that intersects liquid crystal molecule that is infinitely-great curved portion 493 and 494 zones orientation that will tilt in direction perpendicular to first projection and second projection, therefore, this zone liquid crystal molecule projection on second substrate will can not be parallel to the polarization axle of two light polarization devices of substrate up and down.There is certain angle in the molecular axis direction that is incident light and liquid crystal molecule 46, thereby this polarization of incident light attitude will change.Promptly when multidomain vertical orientation formula liquid crystal indicator of the present invention is in bright attitude, the light in this zone will can not absorbed by two light polarization devices, will not have the dark space and exist, and have better display effect.Therefore compare with prior art multidomain vertical orientation formula liquid crystal indicator, multidomain vertical orientation formula liquid crystal indicator of the present invention has preferable portrait quality.
Multidomain vertical orientation formula liquid crystal indicator second embodiment of the present invention as shown in figure 10, this multidomain vertical orientation formula liquid crystal indicator 8 is basic identical with the structure of multidomain vertical orientation formula liquid crystal indicator 4, difference is: in this multidomain vertical orientation formula liquid crystal indicator 8, first projection 811 and second projection 821 are waveforms that " S " shape is formed.
Multidomain vertical orientation formula liquid crystal indicator the 3rd embodiment of the present invention as shown in figure 11, this multidomain vertical orientation formula liquid crystal indicator 5 is basic identical with the structure of multidomain vertical orientation formula liquid crystal indicator 4, difference is: in this multidomain vertical orientation formula liquid crystal indicator 5, infrabasal plate is provided with breach 521 but not projection.
When Figure 11 is making alive, the synoptic diagram of these multidomain vertical orientation formula liquid crystal indicator 5 duties of living in.Under this state, thin film transistor (TFT) is the ON state, apply electric field on the liquid crystal molecule 56 perpendicular to first substrate 51 and second substrate 52, because liquid crystal molecule 56 is negative type liquid crystals, under electric field action, this liquid crystal molecule 56 will be added the restriction of projection 511 and breach 521 to the direction deflection vertical with direction of an electric field, make the orientation of all liquid crystal molecules 56 between this first substrate 51 and second substrate 52 be approximately perpendicular to the inclined-plane of this projection 511.At this moment, there is certain angle in the molecular axis direction of incident light and liquid crystal molecule 56, thereby, this polarization of incident light attitude will change, therefore, the part luminous energy will be arranged from being arranged on the light polarization device outgoing of this first substrate, promptly this multidomain vertical orientation formula liquid crystal indicator 5 is in bright attitude.
Because corresponding to each pixel region, this projection 511 and breach 521 are shaped form, be that projection 511 and breach 521 all have more continuous bending angle, thereby, when on public electrode 53 and the pixel electrode 54 during on-load voltage, under the restriction perpendicular to the electric field of this first substrate 51 and second substrate 52 and this projection 511 and breach 521, liquid crystal molecule 56 will be in a plurality of continuous directions orientation that tilts.This projection 511 comprises one first curved portion 581, one second curved portion 582, it is infinitely-great curved portion 583 that this first curved portion 581 comprises a first curvature radius, it is infinitely-great curved portion 584 that this second curved portion 582 comprises a second curvature radius, this first curvature radius is that infinitely-great curved portion 583 and this second curvature radius are that infinitely-great curved portion 584 intersects, this breach 521 comprises one first curved portion 591, one second curved portion 592, it is infinitely-great curved portion 593 that this first curved portion 591 comprises a first curvature radius, it is infinitely-great curved portion 594 that this second curved portion 592 comprises a second curvature radius, and this first curvature radius is that infinitely-great curved portion 593 is that infinitely-great curved portion 594 intersects with this second curvature radius.This projection 511 and breach 521 all have more continuous bending angle, thereby, when on public electrode 53 and the pixel electrode 54 during on-load voltage, under the restriction perpendicular to the electric field of this first substrate 51 and second substrate 52 and this projection 511 and breach 521, liquid crystal molecule 56 will be in a plurality of continuous directions orientation that tilts.Therefore, this zone liquid crystal molecule projection on second substrate will can not be parallel to the polarization axle of two light polarization devices of substrate up and down.There is certain angle in the molecular axis direction that is incident light and liquid crystal molecule 56, thereby this polarization of incident light attitude will change.Promptly when multidomain vertical orientation formula liquid crystal indicator of the present invention is in bright attitude, will can not absorbed, will not have the dark space and exist, and have better display effect by two light polarization devices at this regional light.Therefore, compare the identical viewing angle characteristic of these multidomain vertical orientation formula liquid crystal indicator 5 tools with multidomain vertical orientation formula liquid crystal indicator 4.
The 4th embodiment of multidomain vertical orientation formula liquid crystal indicator of the present invention as shown in figure 12, this multidomain vertical orientation formula liquid crystal indicator 6 is basic identical with the structure of multidomain vertical orientation formula liquid crystal indicator 4, difference is: in this multidomain vertical orientation formula liquid crystal indicator 6, upper and lower substrate is provided with first breach 611 and second breach 621 but not projection.
When Figure 12 is making alive, the synoptic diagram of these multidomain vertical orientation formula liquid crystal indicator 6 duties of living in.Under this state, thin film transistor (TFT) is the ON state, apply electric field on the liquid crystal molecule 66 perpendicular to first substrate 61 and second substrate 62, because liquid crystal molecule 66 is negative type liquid crystals, under electric field action, this liquid crystal molecule 66 will be added the restriction of first breach 611 and second breach 621 to the direction deflection vertical with direction of an electric field, make the orientation of all liquid crystal molecules 66 between this first substrate 61 and second substrate 62 roughly towards this first breach 611 and second breach 621.At this moment, there is certain angle in the molecular axis direction of incident light and liquid crystal molecule 66, thereby, this polarization of incident light attitude will change, therefore, the part luminous energy will be arranged from being arranged on the light polarization device outgoing of this first substrate, promptly this multidomain vertical orientation formula liquid crystal indicator 6 is in bright attitude.
Because corresponding to each pixel region, this first breach 611 and second breach 621 are shaped form, promptly first breach 611 and second breach 621 all have more continuous bending angle, thereby, when on public electrode 63 and the pixel electrode 64 during on-load voltage, under the restriction perpendicular to the electric field of this first substrate 61 and second substrate 62 and this first breach 611 and second breach 621, liquid crystal molecule 66 will be in a plurality of continuous directions orientation that tilts.This second breach 621 comprises one first curved portion 691, one second curved portion 692, it is infinitely-great curved portion 693 that this first curved portion 691 comprises a first curvature radius, it is infinitely-great curved portion 694 that this second curved portion 692 comprises a second curvature radius, and this first curvature radius is that infinitely-great curved portion 693 is that infinitely-great curved portion 694 intersects with this second curvature radius.The structure of this first breach 611 is identical with this second breach 621.This first breach 611 and second breach 621 all have more continuous bending angle, thereby, when on public electrode 63 and the pixel electrode 64 during on-load voltage, under the restriction perpendicular to the electric field of this first substrate 61 and second substrate 62 and this first breach 611 and second breach 621, liquid crystal molecule 66 will be in a plurality of continuous directions orientation that tilts.Therefore, this zone liquid crystal molecule projection on second substrate will can not be parallel to the polarization axle of two light polarization devices of substrate up and down.There is certain angle in the molecular axis direction that is incident light and liquid crystal molecule 66, thereby this polarization of incident light attitude will change.Promptly when multidomain vertical orientation formula liquid crystal indicator of the present invention is in bright attitude, will can not absorbed, will not have the dark space and exist, and have better display effect by two light polarization devices at this regional light.Compare the identical viewing angle characteristic of these multidomain vertical orientation formula liquid crystal indicator 6 tools with multidomain vertical orientation formula liquid crystal indicator 4.
It is described that but multidomain vertical orientation formula liquid crystal indicator of the present invention is not limited to above-mentioned embodiment, this the first projection/breach and second projection/breach can directly or indirectly be formed in the substrate but not only be formed on public electrode and the pixel electrode, and it can be the waveform that circular arc, serpentine and serpentine are formed except that broken line portion; The xsect of this first projection and second projection can be triangle or rectangle; This substrate can adopt glass or silicon dioxide to make; This dielectric film can adopt insulating material such as monox or silicon nitride to make; This gate line and data line are to adopt the metallic conduction material to make; The alignment film of this multidomain vertical orientation formula liquid crystal indicator both can be arranged in first substrate and second substrate simultaneously, also can be only to be arranged in first substrate or second substrate.
Claims (12)
1. multidomain vertical orientation formula liquid crystal indicator, it comprises first substrate and second substrate that is oppositely arranged, a plurality of liquid crystal molecules that are arranged between this first substrate and second substrate, a plurality ofly be arranged on this first suprabasil first projection and be arranged on this second suprabasil second projection, it is characterized in that: these a plurality of first projections and the curved distribution of second projection, and this first projection and second projection all comprise one first curved portion and one second curved portion, it is infinitely-great curved portion and bending angle continually varying curved portion that this first curved portion and this second curved portion all comprise a radius-of-curvature, and this first curved portion is joined in the unlimited general goal of radius-of-curvature with this second curved portion.
2. multidomain vertical orientation formula liquid crystal indicator as claimed in claim 1 is characterized in that: this first projection and second projection are circular arc or serpentine or waveform.
3. multidomain vertical orientation formula liquid crystal indicator as claimed in claim 2 is characterized in that: the xsect of this first projection and second projection is triangle or trapezoidal or rectangle.
4. multidomain vertical orientation formula liquid crystal indicator, it comprises: first substrate that is oppositely arranged and second substrate, a plurality of liquid crystal molecules that are arranged between this first substrate and second substrate, a plurality ofly be arranged on this first suprabasil projection and be arranged on this second suprabasil breach, it is characterized in that: these a plurality of projections and the curved distribution of breach, and this projection and breach all comprise one first curved portion and one second curved portion, it is infinitely-great curved portion and bending angle continually varying curved portion that this first curved portion and this second curved portion all comprise a radius-of-curvature, and this first curved portion is joined in the unlimited general goal of radius-of-curvature with this second curved portion.
5. multidomain vertical orientation formula liquid crystal indicator as claimed in claim 4 is characterized in that: this projection and breach are circular arc or serpentine or waveform.
6. multidomain vertical orientation formula liquid crystal indicator as claimed in claim 5 is characterized in that: the xsect of this projection and breach is triangle or trapezoidal or rectangle.
7. multidomain vertical orientation formula liquid crystal indicator, it comprises first substrate and second substrate that is oppositely arranged, a plurality of liquid crystal molecules that are arranged between this first substrate and second substrate, a plurality ofly be arranged on this first suprabasil breach and be arranged on this second suprabasil projection, it is characterized in that: these a plurality of breach and the curved distribution of projection, and this breach and projection all comprise one first curved portion and one second curved portion, it is infinitely-great curved portion and bending angle continually varying curved portion that this first curved portion and this second curved portion all comprise a radius-of-curvature, and this first curved portion is joined in the unlimited general goal of radius-of-curvature with this second curved portion.
8. multidomain vertical orientation formula liquid crystal indicator as claimed in claim 7 is characterized in that: this projection and breach are circular arc or serpentine or waveform.
9. multidomain vertical orientation formula liquid crystal indicator as claimed in claim 8 is characterized in that: the xsect of this projection and breach is triangle or trapezoidal or rectangle.
10. multidomain vertical orientation formula liquid crystal indicator, it comprises first substrate and second substrate that is oppositely arranged, a plurality of liquid crystal molecules that are arranged between this first substrate and second substrate, a plurality ofly be arranged on this first suprabasil first breach and be arranged on this second suprabasil second breach, it is characterized in that: these a plurality of first breach and the curved distribution of second breach, and this first breach and second breach all comprise one first curved portion and one second curved portion, it is infinitely-great curved portion and bending angle continually varying curved portion that this first curved portion and this second curved portion all comprise a radius-of-curvature, and this first curved portion is joined in the unlimited general goal of radius-of-curvature with this second curved portion.
11. multidomain vertical orientation formula liquid crystal indicator as claimed in claim 10 is characterized in that: this first breach and second breach are circular arc or serpentine or waveform.
12. multidomain vertical orientation formula liquid crystal indicator as claimed in claim 11 is characterized in that: the xsect of this first breach and second breach is triangle or trapezoidal or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100520125A CN100376995C (en) | 2004-10-27 | 2004-10-27 | Multi-domain vertical alignment type liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100520125A CN100376995C (en) | 2004-10-27 | 2004-10-27 | Multi-domain vertical alignment type liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1766721A CN1766721A (en) | 2006-05-03 |
| CN100376995C true CN100376995C (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100520125A Expired - Fee Related CN100376995C (en) | 2004-10-27 | 2004-10-27 | Multi-domain vertical alignment type liquid crystal display device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435011C (en) * | 2006-11-01 | 2008-11-19 | 友达光电股份有限公司 | Multiple domain vertical alignment pixel and its producing method |
| CN107505776B (en) * | 2017-09-19 | 2021-02-12 | 惠科股份有限公司 | Liquid crystal display device having a plurality of pixel electrodes |
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| CN1264844A (en) * | 1999-02-15 | 2000-08-30 | 富士通株式会社 | Liquid crystal display and its mfg. method |
| JP2001027759A (en) * | 1999-07-13 | 2001-01-30 | Fujitsu Ltd | Liquid crystal display device |
| JP2001188234A (en) * | 1999-12-28 | 2001-07-10 | Fujitsu Ltd | Liquid crystal display device |
| JP2002014350A (en) * | 2000-06-28 | 2002-01-18 | Fujitsu Ltd | Liquid crystal display device |
| JP2002372715A (en) * | 2001-06-06 | 2002-12-26 | Chi Mei Electronics Corp | Liquid crystal display device |
| US6525797B2 (en) * | 1999-03-19 | 2003-02-25 | Fujitsu Display Technologies Corporation | Liquid crystal display device and its manufacture method in which the alignment films having different characteristics |
| US6567144B1 (en) * | 1998-05-20 | 2003-05-20 | Samsung Electronics Co., Ltd. | Liquid crystal display having a wide viewing angle |
| CN1482499A (en) * | 2002-09-13 | 2004-03-17 | 奇美电子股份有限公司 | Liquid crystal displaying device |
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2004
- 2004-10-27 CN CNB2004100520125A patent/CN100376995C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6567144B1 (en) * | 1998-05-20 | 2003-05-20 | Samsung Electronics Co., Ltd. | Liquid crystal display having a wide viewing angle |
| CN1264844A (en) * | 1999-02-15 | 2000-08-30 | 富士通株式会社 | Liquid crystal display and its mfg. method |
| US6525797B2 (en) * | 1999-03-19 | 2003-02-25 | Fujitsu Display Technologies Corporation | Liquid crystal display device and its manufacture method in which the alignment films having different characteristics |
| JP2001027759A (en) * | 1999-07-13 | 2001-01-30 | Fujitsu Ltd | Liquid crystal display device |
| JP2001188234A (en) * | 1999-12-28 | 2001-07-10 | Fujitsu Ltd | Liquid crystal display device |
| JP2002014350A (en) * | 2000-06-28 | 2002-01-18 | Fujitsu Ltd | Liquid crystal display device |
| JP2002372715A (en) * | 2001-06-06 | 2002-12-26 | Chi Mei Electronics Corp | Liquid crystal display device |
| CN1482499A (en) * | 2002-09-13 | 2004-03-17 | 奇美电子股份有限公司 | Liquid crystal displaying device |
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| CN1766721A (en) | 2006-05-03 |
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