CN101988997A - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
- Publication number
- CN101988997A CN101988997A CN2009101602394A CN200910160239A CN101988997A CN 101988997 A CN101988997 A CN 101988997A CN 2009101602394 A CN2009101602394 A CN 2009101602394A CN 200910160239 A CN200910160239 A CN 200910160239A CN 101988997 A CN101988997 A CN 101988997A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- slit
- vector
- substrate
- district
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The invention discloses a liquid crystal display device, which comprises a first substrate, a second substrate and a liquid crystal layer. A pixel electrode of the first substrate comprises a plurality of first slits, a plurality of second slits and a third slit, wherein the first slits and the second slits are connected with the third slit; the first slits and the second slits respectively extend along a first vector and a second vector by taking connecting points with the third slit as starting points; the second substrate comprises a common electrode and an orientation layer which covers the common electrode; the liquid crystal layer is configured between the pixel electrode and the orientation layer; liquid crystal molecules of the liquid crystal layer close to the orientation layer are pre-inclined due to the orientation of the orientation layer; the projection of the long axes of at least partial pre-inclined liquid crystal molecules on the second substrate takes one end of each liquid crystal molecule close to the orientation layer as a starting point so as to form a third vector; an included angle between the third vector and the first vector is theta 1; and an included angle between the third vector and the second vector is theta 2, wherein the theta 1 is more than or equal to 90 degrees and less than or equal to 160 degrees, and the theta 2 is more than or equal to 90 degrees and less than or equal to 160 degrees. The transmittance and the visual angle symmetry can be improved.
Description
Technical field
The present invention relates to a kind of display device, and particularly relate to a kind of liquid crystal indicator (liquid crystal display).
Background technology
At improving rapidly of multimedia society, be indebted to the tremendous progress of semiconductor element or display device mostly.With regard to display device, have that high image quality, space utilization efficient are good, the liquid crystal indicator of low consumpting power, advantageous characteristic such as radiationless becomes the main flow in market gradually.
At present, market is towards characteristics such as height contrast (high contrast ratio), the counter-rotating of no GTG (no gray scale inversion), colour cast little (low color shift), brightness height (high luminance), high color richness, high color saturation, rapid reaction and wide viewing angles for the performance requirement of liquid crystal indicator.The technology that can reach the wide viewing angle requirement has at present comprised stable twisted nematic (twisted nematic, TN) liquid crystal adds view film (wide viewing film), copline suitching type (in-plane switching, IPS) liquid crystal indicator, limit suitching type (fringe field switching) liquid crystal indicator and multidomain vertical alignment type (multi-domain vertically alignment, MVA) liquid crystal indicator etc.
Yet in the stable twisted nematic liquid crystal indicator, liquid crystal layer all must use both alignment layers that liquid crystal molecule is carried out orientation up and down, makes that the process time is long and cost is higher.In addition, the stable twisted nematic liquid crystal indicator also has shortcomings such as the higher and contrast of asymmetric, the dark attitude picture brightness in visual angle is lower.In the vertical direction distributing type liquid crystal indicator, shortcoming such as have then that light transmission is relatively poor, reaction velocity is slow and colour cast is more serious.
Summary of the invention
The invention provides a kind of liquid crystal indicator, be suitable for improving transmissivity and visual angle symmetry.
Liquid crystal indicator of the present invention has at least one pixel region, and comprises first substrate, second substrate and liquid crystal layer.First substrate has at least one pixel electrode at pixel region.Pixel electrode has a plurality of first slits, a plurality of second slit and at least one the 3rd slit.First slit is connected the 3rd slit respectively with second slit.Each first slit is a starting point and extending along primary vector with the tie point of itself and the 3rd slit.Each second slit is a starting point and extending along secondary vector with the tie point of itself and the 3rd slit.Second substrate has common electrode and the both alignment layers that covers common electrode.Liquid crystal layer is disposed between the both alignment layers of the pixel electrode of first substrate and second substrate.Liquid crystal layer is subjected to the orientation of both alignment layers and pre-dumping near the liquid crystal molecule of both alignment layers, to the projection of major axis on second substrate of the liquid crystal molecule of small part pre-dumping be that starting point forms the 3rd vector with an end of this both alignment layers of liquid crystal molecule near.The direction of parallel the 3rd vector of the 3rd slit.The 3rd vector is that θ 1, the three vectorial angle with secondary vector is θ 2 with the angle of primary vector, and wherein 90 °≤θ is 1≤160 °, 2≤160 ° of 90 °≤θ.
In the embodiment of this liquid crystal indicator, 1≤150 ° of 120 °≤θ, 2≤150 ° of 120 °≤θ.
In the embodiment of this liquid crystal indicator, θ 1=θ 2.
In the embodiment of this liquid crystal indicator, pixel region is divided into first district and second district, the projection of major axis on second substrate of liquid crystal molecule that is positioned at the pre-dumping in first district is that starting point forms the 3rd vector with an end of liquid crystal molecule near both alignment layers, and the projection of major axis on second substrate of liquid crystal molecule that is positioned at the pre-dumping in second district is that starting point forms the four-way amount with an end of liquid crystal molecule near both alignment layers.The direction of the parallel four-way amount of direction of the 3rd vector, and the 3rd vector and this four-way amount are all towards the boundary line in first district and second district.For example, θ 1=θ is 2=90 °.In addition, first slit and second slit for example are positioned at first district, and pixel electrode for example also has a plurality of the 5th slits and a plurality of the 6th slit.The 5th slit is positioned at second district and is connected the 3rd slit respectively with the 6th slit.Each the 5th slit is a starting point and along the 5th vector extension with its tie point with the 3rd slit.Each the 6th slit is a starting point and along the 6th vector extension with its tie point with the 3rd slit.The 3rd vector is θ 5 with the angle of the 5th vector, and the angle of the 3rd vector and the 6th vector is θ 6, and 5≤160 ° of 90 °＜θ, 6≤160 ° of 90 °＜θ.In addition, for example 90 °＜θ is 1≤160 °, 2≤160 ° of 90 °＜θ, and pixel electrode can also have the 4th slit, is positioned at the direction extension along vertical in fact the 3rd vector with the boundary line in second district of first district.
In the embodiment of this liquid crystal indicator, the angle between the normal direction of the major axis of the liquid crystal molecule of pre-dumping and second substrate is greater than 0 ° and smaller or equal to 15 °.
In the embodiment of this liquid crystal indicator, also comprise first polaroid and second polaroid, be disposed at respectively on first substrate and the surface of second substrate away from liquid crystal layer.In addition, the polarization direction of first polaroid and second polaroid is for example orthogonal in fact.
In the embodiment of this liquid crystal indicator, first substrate is an active elements array substrates.In addition, first substrate can also have at least one color filter film, is positioned at pixel region.
In the embodiment of this liquid crystal indicator, second substrate also has at least one color filter film, is positioned at pixel region.
In the embodiment of this liquid crystal indicator, also comprise backlight module, and first substrate, second substrate and liquid crystal layer are disposed on the backlight module.
In the embodiment of this liquid crystal indicator, the liquid crystal molecule of liquid crystal layer is the negative type liquid crystal molecule.
In sum, in liquid crystal indicator of the present invention, folded between slit and the pre-dumping direction is on-right angle, can improve the transmissivity of each pixel region.In addition, both alignment layers makes the liquid crystal molecule in each pixel region that two kinds of different pre-dumping directions be arranged, and can improve the visual angle symmetry.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the partial cutaway diagrammatic sketch of the liquid crystal indicator of the embodiment of the invention.
Fig. 2 is the partial top view of first substrate in the liquid crystal indicator of Fig. 1.
Fig. 3 A and Fig. 3 B are the sectional perspective synoptic diagram of single pixel region in the liquid crystal indicator of Fig. 1.
Fig. 4 analyses and observe along I-I profile line as shown in Figure 2 for liquid crystal layer in the liquid crystal indicator of Fig. 3 B, and on the Y-Z plane being seen partial sectional view.
Fig. 5 is the synoptic diagram of single pixel electrode in the liquid crystal indicator of another embodiment of the present invention.
Fig. 6 A-6E is for adopting as the liquid crystal indicator of the pixel electrode of Fig. 5 transmissivity synoptic diagram when various θ 1 and the θ 2.
Fig. 7 is the synoptic diagram of single pixel electrode in the liquid crystal indicator of yet another embodiment of the invention.
Description of reference numerals
1000: liquid crystal indicator
100: the first substrates
110,2000,3000: pixel electrode
112,2100,3100: the first slits
114,2200,3200: the second slits
116,2300,3300: the three slits
120: scan wiring
130: data wiring
140: active component
200: the second substrates
210: common electrode
220: both alignment layers
230: color filter film
300: liquid crystal layer
400: the first polaroids
500: the second polaroids
600: backlight module
P10: pixel region
P12: first district
P14: second district
D12, D14, D70, D80, D90, A12, A14, A20, A30, A42, A44, A46, A48: vector
D20: the long axis direction of the liquid crystal molecule of pre-dumping
D30: the normal direction of second substrate
D40: the bearing of trend of the 3rd slit
D50, D60: polarization direction
D100: the bearing of trend of the 4th slit
3400: the four slits
3500: the five slits
3600: the six slits
Embodiment
Fig. 1 is the partial cutaway diagrammatic sketch of the liquid crystal indicator of the embodiment of the invention.Please refer to Fig. 1, the liquid crystal indicator 1000 of present embodiment comprises first substrate 100, second substrate 200 and liquid crystal layer 300.Liquid crystal indicator 1000 has at least one pixel region, and present embodiment is an example to be divided into a plurality of pixel region P10 then.Liquid crystal layer 300 is to be disposed between first substrate 100 and second substrate 200, and parallel in fact second substrate 200 of first substrate 100.Second substrate 200 has common electrode 210 and both alignment layers 220.Wherein, both alignment layers 220 covers common electrode 210, and both alignment layers 220 is near liquid crystal layer 300.
In addition, the liquid crystal molecule of liquid crystal layer 300 for example is to adopt the negative type liquid crystal molecule.The parallel dielectric constant of negative type liquid crystal molecule is less than vertical specific inductive capacity, therefore when being subjected to electric field action the major axis of negative type liquid crystal molecule with the vertical electric field direction.In addition, liquid crystal indicator 1000 for example also comprises first polaroid 400 and second polaroid 500.First polaroid 400 is disposed at the surface of first substrate 100 away from liquid crystal layer 300, that is first polaroid 400 is disposed at respectively on two apparent surfaces of first substrate 100 with liquid crystal layer 300.Second polaroid 500 is disposed on second surface of substrate 200 away from liquid crystal layer 300, that is second polaroid 500 is disposed at respectively on two apparent surfaces of second substrate 200 with liquid crystal layer 300.
Moreover first substrate 100 can be an active elements array substrates, that is has scan wiring, data wiring, active component and pixel electrode etc. on first substrate 100, will do comparatively detailed explanation to these members after a while.Simultaneously, aforesaid first substrate 100 also can have a plurality of color filter films (not illustrating), and it lays respectively at each pixel region P10.Perhaps, second substrate 200 for example also has a plurality of color filter films 230, and it lays respectively at each pixel region P10.In addition, if liquid crystal indicator 1000 adopts transmission-types or half-transmission half-reflection type design, then can also comprise backlight module 600 so that area source to be provided, and first substrate 100, second substrate 200 and liquid crystal layer 300 are disposed on the backlight module 600.
Fig. 2 is the partial top view of first substrate in the liquid crystal indicator of Fig. 1, Fig. 3 A and Fig. 3 B are the sectional perspective synoptic diagram of single pixel region in the liquid crystal indicator of Fig. 1, wherein Fig. 3 A shows that liquid crystal layer is not subjected to the state of electric field action, and Fig. 3 B shows that liquid crystal layer is subjected to the state of electric field action.
Please refer to Fig. 2, Fig. 3 A and Fig. 3 B, first substrate 100 has a plurality of pixel electrodes 110.Each pixel electrode 110 lays respectively at a pixel region P10, and each pixel electrode 110 has a plurality of first slits 112, a plurality of second slit 114 and one the 3rd slit 116.First slit 112 is connected the 3rd slit 116 with second slit 114.These first slits 112 are to extend along vectorial D12 (X-axis among parallel Fig. 3 A), and this vectorial D12 is that the tie point with first slit 112 and the 3rd slit 116 is a starting point.These second slits 114 are to extend along vectorial D14 (X-axis among parallel Fig. 3 A), and this vectorial D14 is that the tie point with second slit 114 and the 3rd slit 116 is a starting point.In addition, first substrate 100 for example also has plurality of scanning wirings 120 (only illustrating among Fig. 2), many data wirings 130 and a plurality of active component 140.Wherein, pixel region P10 is promptly defined by scan wiring 120 and data wiring 130.Active component 140 and corresponding scan wiring 120, data wiring 130 and pixel electrode 110 electric connections.Active component 140 is driven by the scan wiring 120 of correspondence, and pixel electrode 110 receives the signal that corresponding data wiring 130 is transmitted via active component 140.
Liquid crystal layer 300 is disposed between the both alignment layers 220 of first substrate 100 and second substrate 200, and pixel electrode 110 is to be positioned at first substrate 100 on the surface of liquid crystal layer 300.Both alignment layers 220 is that liquid crystal layer 300 is carried out vertical orientation, that is the liquid crystal molecule of liquid crystal layer 300 is roughly the surface of vertical second substrate 200 and arranges when not being subjected to electric field action, as shown in Figure 3A.Simultaneously, both alignment layers 220 also makes the liquid crystal molecule pre-dumping of contiguous liquid crystal layer 300.In the present embodiment, each pixel region P10 is divided into the first district P12 and the second district P14, and the major axis of liquid crystal molecule that is positioned at the pre-dumping of the first district P12 is parallel to direction D20.Wherein, vectorial D12 is vertical direction D20 in fact, and the projecting direction of the major axis of the liquid crystal molecule of pre-dumping on second substrate 200 (being X-Y plane) then is parallel to Y-axis.In addition, the angle between the normal direction D30 (being the Z axle among parallel Fig. 3 A) of the major axis of the liquid crystal molecule of pre-dumping (being direction D20) and second substrate 200 can be greater than 0 ° and smaller or equal to 15 °, and this angle also can be other angle certainly.The liquid crystal molecule that makes liquid crystal layer 300 can be toppled over when the purpose of direction D20 pre-dumping is to make liquid crystal molecule to topple over being subjected to electric field action in the same direction.
It should be noted that, direction by vertical second substrate 200 is watched, the major axis of liquid crystal molecule that is positioned at the pre-dumping of the first district P12 is the boundary line of swinging to the first district P12 and the second district P14, that is the projection of the major axis of these liquid crystal molecules on second substrate 200 can to constitute with an end of liquid crystal molecule near both alignment layers 220 (being shown in Fig. 1) be the vectorial A12 of starting point.On the other hand, direction by vertical second substrate 200 is watched, the major axis of liquid crystal molecule that is positioned at the pre-dumping of the second district P14 is the boundary line of swinging to the first district P12 and the second district P14, that is the projection of the major axis of these liquid crystal molecules on second substrate 200 can to constitute with an end of liquid crystal molecule near both alignment layers 220 (being shown in Fig. 1) be the vectorial A14 of starting point.In other words, the major axis of liquid crystal molecule that is positioned at the pre-dumping of the first district P12 and the second district P14 is the not homonymy of swinging to the boundary line in first district and second district.Certainly, the major axis of liquid crystal molecule that is positioned at the pre-dumping of the first district P12 also can be swung to the direction away from the boundary line of the first district P12 and the second district P14, and the major axis of liquid crystal molecule that is positioned at the pre-dumping of the second district P14 is then swung to the direction away from the boundary line of the first district P12 and the second district P14.By such design, can allow the liquid crystal molecule among the single pixel region P10 when being subjected to electric field action, have two kinds of toppling directions, and then promote the visual angle symmetry of liquid crystal indicator 1000.Through suitably design, the liquid crystal molecule among the single pixel region P10 also can have more kinds of pre-dumping directions.
Aspect the method for making of both alignment layers 220, can use the direction friction matching film 220 of hairbrush along vectorial A12 and A14, can allow the groove of liquid crystal prescription pre-dumping on alignment film 220, to form.Perhaps, also can make with light orientation method the molecular structure of alignment film 220 is done the orientation effect, this mode is the incident angle that depends on orientation light for the orientation angle of liquid crystal molecule, can produce the pre-dumping effect of two kinds of different directions equally.
The bearing of trend D40 of the 3rd slit 116 is to be that example is done explanation with vertical vector D12 in fact, but non-in order to limit the present invention.In the present embodiment, both alignment layers 220 is done orientation and is handled along the direction of the bearing of trend D40 that is parallel to the 3rd slit 116, and makes the projecting direction of major axis on first substrate 100 of the liquid crystal molecule of pre-dumping be parallel to Y-axis.
In the present embodiment, first polaroid 400 and second polaroid 500 are linear polarizer.Wherein, the polarization direction D50 of the polarization direction D60 of first polaroid 400 and second polaroid 500 for example is orthogonal in fact.As Fig. 3 A, because the liquid crystal molecule of liquid crystal layer 300 is that approximate vertical first polaroid 400 is arranged when not being subjected to electric field action in the present embodiment, therefore the polarization direction of the light by first polaroid 400 will can not be subjected to the change of liquid crystal layer 300 and can't pass through second polaroid 500, that is the liquid crystal indicator among Fig. 3 A 1000 is to be in dark attitude (dark state).As Fig. 3 B, when the liquid crystal molecule of liquid crystal layer 300 is subjected to electric field action and rotates, the polarization direction of the light by first polaroid 400 will be subjected to the change of liquid crystal layer 300 and can pass through second polaroid 500, that is the liquid crystal indicator among Fig. 3 B 1000 is to be in bright attitude (white state).In addition, the polarization direction D50 of the light by second polaroid 500 in the present embodiment for example is vertical vector D12 in fact, that is polarization direction D50 is parallel to Y-axis, but non-in order to limit the present invention.
Fig. 4 analyses and observe along I-I profile line as shown in Figure 2 for liquid crystal layer in the liquid crystal indicator of Fig. 3 B, and on the Y-Z plane being seen partial sectional view, wherein illustrate the ordered state of the liquid crystal molecule of simulation gained.Please refer to Fig. 3 B and Fig. 4, when liquid crystal layer 300 is subjected to electric field action, can be subjected to the electric field action of two kinds of directions at the liquid crystal molecule of the edge of first slit 112, the one, the electric field between common electrode 210 and the pixel electrode 110, another then is the electric field between the pixel electrode 110 of first slit, 112 both sides.Then mainly be subjected to the electric field between common electrode 210 and the pixel electrode 110 and the effect of both alignment layers orientation near the liquid crystal molecule of common electrode 210.Therefore, will be roughly parallel to X-axis, and will be roughly parallel to Y-axis, shown in the A district among Fig. 4 near the major axis of the liquid crystal molecule of common electrode 210 at the major axis of the liquid crystal molecule of the edge of first slit 112.Hence one can see that, and in the A district of the edge of corresponding first slit 112, the start pattern of liquid crystal molecule can be a nematic mode.
Equally with reference to Fig. 3 B and Fig. 4, when liquid crystal layer 300 is subjected to electric field action, because the extruding of the liquid crystal molecule of the edge of first slit 112, the liquid crystal molecule (being the liquid crystal molecule in the B district in the corresponding diagram 4) of pixel electrode 110 central authorities between first slit, 112 central authorities and first slit 112 can be with the vertical alignment mode start.Particularly, the projection of major axis on X-Y plane of the liquid crystal molecule of close first substrate 100 in B district roughly pressed from both sides 45 ° with X-axis.
Because the start pattern of the liquid crystal molecule of each pixel region P10 has comprised nematic mode and vertical alignment mode simultaneously, so advantages such as the liquid crystal indicator 1000 of present embodiment can obtain, dark attitude picture brightness is lower, high-contrast, high light transmission, reaction velocity is very fast and colour cast is slight.In addition, because the pre-dumping direction difference of the liquid crystal molecule of the first district P12 and the second district P14, so can further improve the visual angle symmetry of the liquid crystal indicator 1000 of present embodiment.
Fig. 5 is the synoptic diagram of single pixel electrode in the liquid crystal indicator of another embodiment of the present invention.The liquid crystal indicator of present embodiment and the difference of previous embodiment are that the slit on the pixel electrode distributes.Please refer to Fig. 5, pixel electrode 2000 has a plurality of first slits 2100 and a plurality of second slits 2200 and two the 3rd slits 2300.The quantity of the 3rd slit 2300 also can be one or more.First slit 2100 extends along vectorial D70, and vectorial D70 is a starting point with the tie point of first slit 2100 and the 3rd slit 2300.Second slit 2200 extends along vectorial D80, and vectorial D80 is a starting point with the tie point of second slit 2200 and the 3rd slit 2300.Be subjected to the orientation of both alignment layers (not illustrating) and the projection of major axis on pixel electrode 2000 of the liquid crystal molecule (not illustrating) of pre-dumping can to constitute with an end of liquid crystal molecule near both alignment layers be the vectorial D90 of starting point.The angle of vector D90 and vectorial D70 is θ 1, and the angle of vectorial D90 and vectorial D80 is θ 2.Wherein, 1≤160 ° of 90 °≤θ, 2≤160 ° of 90 °≤θ.Fig. 6 A-6E is for adopting as the liquid crystal indicator of the pixel electrode of Fig. 5 transmissivity synoptic diagram when various θ 1 and the θ 2.θ 1 among Fig. 6 A to 6E and θ 2 are respectively 90 °, 95 °, 105 °, 120 ° and 135 °.Can find that by Fig. 6 A to 6E when θ 1 and θ 2 were big more, liquid crystal indicator had big more transmissivity.
In preferred angular range, 1≤150 ° of 120 °≤θ, 2≤150 ° of 120 °≤θ.In addition, θ 1 is not limited to identical with θ 2.In addition, the liquid crystal molecule in the pixel electrode 2000 pairing pixel regions (not illustrating) of present embodiment is all with the equidirectional pre-dumping, but also can as last embodiment multiple pre-dumping direction be arranged in single pixel region.
Fig. 7 is the synoptic diagram of single pixel electrode in the liquid crystal indicator of yet another embodiment of the invention.The difference of the pixel electrode of the liquid crystal indicator of present embodiment and the pixel electrode of Fig. 5 is the distribution of slit.Please refer to Fig. 7, pixel electrode 3000 can have at least one the 4th slit 3400, a plurality of the 5th slit 3500 and a plurality of the 6th slits 3600 except first slit 3100, second slit 3200 and the 3rd slit 3300.Extend on the 4th slit 3400 edges direction D100 of vertical vector D90 in fact, and connect first slit 3100 and second slit 3200.Particularly, the 3rd slit 3300 and the 4th slit 3400 are divided into four quadrants with pixel electrode 3000, what distribute in first quartile is the 6th slit 3600, what distribute in second quadrant is the 5th slit 3500, what distribute in third quadrant is first slit 3600, and what distribute in four-quadrant is second slit 3200.In addition, in first and second quadrant, be subjected to both alignment layers (not illustrating) orientation and the projection of major axis on pixel electrode 3000 of the liquid crystal molecule (not illustrating) of pre-dumping can to constitute with an end of liquid crystal molecule near both alignment layers be the vectorial A20 of starting point, and the 3rd and four-quadrant in be subjected to the both alignment layers orientation and the projection of major axis on pixel electrode 3000 of the liquid crystal molecule of pre-dumping can to constitute with an end of liquid crystal molecule near both alignment layers be the vectorial A30 of starting point.Certainly, also can be first with third quadrant in liquid crystal molecule have identical pre-dumping to swing to, and second and four-quadrant in liquid crystal molecule have another kind of pre-dumping to swing to.
Hold above-mentioned, the vectorial A44 folder obtuse angle that vectorial A42 that vectorial A20 that is constituted in the pre-dumping direction of the liquid crystal molecule of first and second quadrant and the 6th slit 3600 are constituted and the 5th slit 3500 are constituted, the 3rd and the vectorial A48 folder obtuse angle that constituted of the vectorial A46 that constituted of the vectorial A30 that constituted of the pre-dumping direction of four-quadrant liquid crystal molecule and first slit 3100 and second slit 3200, and liquid crystal molecule has two kinds of pre-dumping directions.Therefore, the liquid crystal indicator of present embodiment not only has high-transmission rate, also has good visual angle symmetry.
In sum, in liquid crystal indicator of the present invention, the anglec of rotation by being designed to accompany the obtuse angle between the pre-dumping direction with slit and liquid crystal molecule, can allowing the liquid crystal molecule that is the nematic mode start is near 90 °, and then improves the transmissivity of each pixel region.In addition, the both alignment layers of two kinds of different pre-dumping directions is arranged, can increase the symmetry of Liquid Crystal Molecules Alignment mode in the single pixel region, and then improve the visual angle symmetry of liquid crystal indicator by forming the liquid crystal molecule that can make in each pixel region.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; those of ordinary skill in the technical field under any; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention defines and is as the criterion when looking appended claim.
Claims (10)
1. a liquid crystal indicator has at least one pixel region, and this liquid crystal indicator comprises:
First substrate, has at least one pixel electrode, wherein this pixel electrode is positioned at this pixel region, and this pixel electrode has a plurality of first slits, a plurality of second slit and at least one the 3rd slit, described a plurality of first slit is connected the 3rd slit respectively with described a plurality of second slits, respectively this first slit is a starting point and extending along primary vector with the tie point of itself and the 3rd slit, and respectively this second slit is a starting point and extending along secondary vector with the tie point of itself and the 3rd slit;
Second substrate has common electrode and both alignment layers, and wherein this both alignment layers covers this common electrode; And
Liquid crystal layer, be disposed between this both alignment layers of this pixel electrode of this first substrate and this second substrate, wherein this liquid crystal layer is subjected to the orientation of this both alignment layers and pre-dumping near the liquid crystal molecule of this both alignment layers, to the projection of major axis on this second substrate of the liquid crystal molecule of small part pre-dumping be that starting point forms the 3rd vector with an end of this both alignment layers of liquid crystal molecule near, the direction of parallel the 3rd vector of the 3rd slit, the 3rd vector is θ 1 with the angle of this primary vector, the 3rd vector is θ 2 with the angle of this secondary vector, wherein 90 °≤θ is 1≤160 °, 2≤160 ° of 90 °≤θ.
2. liquid crystal indicator as claimed in claim 1, wherein 120 °≤θ is 1≤150 °, 2≤150 ° of 120 °≤θ.
3. liquid crystal indicator as claimed in claim 1, wherein θ 1=θ 2.
4. liquid crystal indicator as claimed in claim 1, wherein this pixel region is divided into first district and second district, the projection of major axis on this second substrate of liquid crystal molecule that is positioned at the pre-dumping in this first district is that starting point forms the 3rd vector with an end of this both alignment layers of liquid crystal molecule near, the projection of major axis on this second substrate of liquid crystal molecule that is positioned at the pre-dumping in this second district is that starting point forms the four-way amount with an end of this both alignment layers of liquid crystal molecule near, the direction of parallel this four-way amount of direction of the 3rd vector, and the 3rd vector and this four-way amount are all towards the boundary line in this first district and this second district.
5. liquid crystal indicator as claimed in claim 4, wherein θ 1=θ is 2=90 °.
6. liquid crystal indicator as claimed in claim 4, wherein said a plurality of first slit and described a plurality of second slit are positioned at this first district, this pixel electrode also has a plurality of the 5th slits and a plurality of the 6th slit, described a plurality of the 5th slit is positioned at this second district and is connected the 3rd slit respectively with described a plurality of the 6th slits, respectively the 5th slit is a starting point and extending along the 5th vector with the tie point of itself and the 3rd slit, respectively the 6th slit is a starting point and extending along the 6th vector with the tie point of itself and the 3rd slit, the 3rd vector is θ 5 with the angle of the 5th vector, the 3rd vector is θ 6 with the angle of the 6th vector, 5≤160 ° of 90 °＜θ, 6≤160 ° of 90 °＜θ.
7. liquid crystal indicator as claimed in claim 6, wherein 90 °＜θ is 1≤160 °, 2≤160 ° of 90 °＜θ, this pixel electrode also has the 4th slit, is positioned at the direction extension along vertical in fact the 3rd vector with the boundary line in this second district of this first district.
8. liquid crystal indicator as claimed in claim 1, wherein the angle between the normal direction of the major axis of the liquid crystal molecule of pre-dumping and this second substrate is greater than 0 ° and smaller or equal to 15 °.
9. liquid crystal indicator as claimed in claim 1, also comprise first polaroid and second polaroid, be disposed at respectively on this first substrate and this surface of second substrate away from this liquid crystal layer, wherein the polarization direction of this first polaroid and this second polaroid is orthogonal in fact.
10. liquid crystal indicator as claimed in claim 1, wherein the liquid crystal molecule of this liquid crystal layer is the negative type liquid crystal molecule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101602394A CN101988997A (en) | 2009-07-30 | 2009-07-30 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101602394A CN101988997A (en) | 2009-07-30 | 2009-07-30 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101988997A true CN101988997A (en) | 2011-03-23 |
Family
ID=43745623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101602394A Pending CN101988997A (en) | 2009-07-30 | 2009-07-30 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101988997A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015090012A1 (en) * | 2013-12-19 | 2015-06-25 | 京东方科技集团股份有限公司 | Liquid crystal display screen and display device |
| CN106707634A (en) * | 2016-12-23 | 2017-05-24 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN111308800A (en) * | 2019-12-10 | 2020-06-19 | 京东方科技集团股份有限公司 | Pixel electrode, liquid crystal display device and using method thereof |
| CN112083605A (en) * | 2020-08-26 | 2020-12-15 | 成都中电熊猫显示科技有限公司 | Liquid crystal panel, display device and alignment method of liquid crystal panel |
| CN112198723A (en) * | 2020-10-09 | 2021-01-08 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display screen and liquid crystal display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1379271A (en) * | 2001-04-04 | 2002-11-13 | 富士通株式会社 | Liquid crystal display device having delay plate |
| US6654090B1 (en) * | 1998-09-18 | 2003-11-25 | Lg. Philips Lcd Co., Ltd. | Multi-domain liquid crystal display device and method of manufacturing thereof |
| CN1495492A (en) * | 2002-09-10 | 2004-05-12 | ��־�������ʽ���� | Active matrix vertical orientation mode liquid crystal display and its driving method |
| CN101295116A (en) * | 2007-04-29 | 2008-10-29 | 奇美电子股份有限公司 | LCD device |
-
2009
- 2009-07-30 CN CN2009101602394A patent/CN101988997A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6654090B1 (en) * | 1998-09-18 | 2003-11-25 | Lg. Philips Lcd Co., Ltd. | Multi-domain liquid crystal display device and method of manufacturing thereof |
| CN1379271A (en) * | 2001-04-04 | 2002-11-13 | 富士通株式会社 | Liquid crystal display device having delay plate |
| CN1495492A (en) * | 2002-09-10 | 2004-05-12 | ��־�������ʽ���� | Active matrix vertical orientation mode liquid crystal display and its driving method |
| CN101295116A (en) * | 2007-04-29 | 2008-10-29 | 奇美电子股份有限公司 | LCD device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015090012A1 (en) * | 2013-12-19 | 2015-06-25 | 京东方科技集团股份有限公司 | Liquid crystal display screen and display device |
| US9658497B2 (en) | 2013-12-19 | 2017-05-23 | Boe Technology Group Co., Ltd. | Liquid crystal display and display device |
| CN106707634A (en) * | 2016-12-23 | 2017-05-24 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN111308800A (en) * | 2019-12-10 | 2020-06-19 | 京东方科技集团股份有限公司 | Pixel electrode, liquid crystal display device and using method thereof |
| CN112083605A (en) * | 2020-08-26 | 2020-12-15 | 成都中电熊猫显示科技有限公司 | Liquid crystal panel, display device and alignment method of liquid crystal panel |
| CN112083605B (en) * | 2020-08-26 | 2022-11-29 | 成都中电熊猫显示科技有限公司 | Liquid crystal panel, display device and alignment method of liquid crystal panel |
| CN112198723A (en) * | 2020-10-09 | 2021-01-08 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display screen and liquid crystal display device |
| WO2022073280A1 (en) * | 2020-10-09 | 2022-04-14 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display screen and liquid crystal display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI382257B (en) | Liquid crystal display | |
| US7768616B2 (en) | Pixel structure and liquid crystal display panel | |
| JP2565639B2 (en) | Liquid crystal display | |
| JP5301605B2 (en) | Liquid crystal display | |
| TWI356247B (en) | Liquid crystal display | |
| US7898624B2 (en) | Pixel array substrate and liquid crystal display | |
| US7760303B2 (en) | Liquid crystal display device | |
| JP2010164998A (en) | Liquid crystal display having wide viewing angle | |
| JPWO2010092658A1 (en) | Liquid crystal display | |
| USRE45115E1 (en) | Multi-domain vertical alignment liquid crystal display panel | |
| WO2016176896A1 (en) | Pixel electrode and liquid crystal display panel | |
| US8462302B2 (en) | Multi-domain vertical alignment liquid crystal display device and pixel structure thereof | |
| US20050213013A1 (en) | In-plane switching liquid crystal display with bent electrodes | |
| WO2013127199A1 (en) | Tft-lcd array substrate and display device | |
| CN101988997A (en) | Liquid crystal display device | |
| CN101930139A (en) | Pixel array substrate, liquid crystal display device and driving method thereof | |
| US8537315B2 (en) | Liquid crystal display having alignment areas and electrode areas with particular boundaries and openings | |
| US20120001840A1 (en) | Liquid crystal display device | |
| CN111208659B (en) | Liquid crystal display panel and display device | |
| US10768486B2 (en) | Display device | |
| CN101295116B (en) | LCD device | |
| TWI362528B (en) | Pixel structure and liquid crystal display having the same | |
| US20090015764A1 (en) | Multi-domain vertical alignment liquid crystal display panel | |
| TWI384275B (en) | Liquid crystal panel | |
| US20130329177A1 (en) | Liquid-crystal display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110323 |