CN103733130A - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
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- CN103733130A CN103733130A CN201280038824.7A CN201280038824A CN103733130A CN 103733130 A CN103733130 A CN 103733130A CN 201280038824 A CN201280038824 A CN 201280038824A CN 103733130 A CN103733130 A CN 103733130A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134372—Electrodes characterised by their geometrical arrangement for fringe field switching [FFS] where the common electrode is not patterned
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- General Physics & Mathematics (AREA)
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Abstract
The present invention provides a liquid crystal display capable of minimizing defects due to process variations and improving display performance. The liquid crystal display according to the present invention includes a first electrode, an insulating film provided on the first electrode, and a second electrode provided on the insulating film. Multiple slits provided within a pixel are formed in the second electrode. The first electrode is opposite the multiple slits and the multiple slits are parallel to each other. Each of the multiple slits includes a first linear portion extending in a first direction, a second linear portion connected to one end of the first linear portion and extending in a second direction, and a bent portion bent in a region where the first linear portion and the second linear portion are connected to each other. The other ends of the multiple first linear portions are on the same line. When a slit located at one end in the pixel among the multiple slits is defined as a first slit, the slit next to the first slit has the first and the second linear portions bent so as to be nearer to the first slit, and the more distant a slit is from the first slit, the shorter the length of the first linear portion thereof becomes.
Description
Technical field
The present invention relates to liquid crystal display.In more detail, the liquid crystal display that relates to the liquid crystal display that is suitable for lateral electric field type.
Background technology
Use the aspect of the high image quality that the active matrix-type liquid crystal display device of the active component of thin film transistor (TFT) (TFT) representative compares favourably from the feature of thin, light weight with cathode-ray tube (CRT), as display device, extensively popularized.The display mode of known such liquid crystal display is roughly divided into 2 kinds of display modes below.
A kind of is vertical Electric Field Mode.In which, utilize the electric field driven liquid crystal layer of the direction substantially vertical with real estate, to inciding the light of liquid crystal layer, modulate and show.As the liquid crystal mode of vertical Electric Field Mode, known have a TN(Twisted Nematic: twisted nematic) pattern, MVA(Multi-domain Vertical Alignment: multi-domain vertical alignment) pattern etc.
Another kind is lateral electric field type.In which, the electric field driven liquid crystal layer of the direction of utilization and real estate almost parallel.As the liquid crystal mode of lateral electric field type, known have an IPS(In-plane Switching: in-plane switching) pattern, FFS(Fringe Field Switching: fringe field switching) pattern etc.
As the concrete example of IPS pattern, following liquid crystal display is disclosed (for example,, with reference to patent documentation 1.), for example, this liquid crystal display possesses: many gate wirings and data wiring, its to mutually orthogonally on the 1st substrate dividing into the 1st, the 2nd, the unit picture element in the 3rd region defines; Thin film transistor (TFT), its intersection place at gate wirings and data wiring forms; Share distribution, it is parallel with gate wirings; Common electrode, it,, from sharing distribution branch, is bent into the 1st angle in the 1st region, in the 2nd region, is bent into the 2nd angle, in the 3rd region, is bent into the 3rd angle; Pixel electrode, the drain electrode of itself and thin film transistor (TFT) links, and forms abreast with common electrode; And liquid crystal layer, it forms between the 1st substrate and the 2nd substrate relative with it.
As the concrete example of FFS pattern disclose by seam shape opening be made as " く " word shape, the display panels of lateral electric field type of seam shape opening that links different directions is (for example,, with reference to patent documentation 2.）。In addition, liquid crystal display (for example, patent documentation 3 references that possess electrode are disclosed.), above-mentioned electrode is formed with: the 1st seam, and it clips the line part extending in the 1st direction and extends to the 2nd direction different from the 1st direction; And the 2nd seam, it extends to different with the 2nd direction from the 1st direction the 3rd directions.
prior art document
patent documentation
Patent documentation 1: JP 2007-11259 communique
Patent documentation 2: JP 2010-102284 communique
Patent documentation 3: JP 2010-256547 communique
Summary of the invention
the problem that invention will solve
The liquid crystal display of lateral electric field type possesses the electrode (for example pixel electrode) that is formed with a plurality of seams that are parallel to each other, and uses this electrode to produce transverse electric field.In addition, this panel transmissivity according to the width (L) of electrode (linear parts) between the width (S) of seam, seam and they and (S+L) change.Generally, when L and S sum diminish, panel transmissivity uprises.But, in manufacturing process, there is restriction, therefore can not make L and S be less than setting, there is limitation in the actual panel transmissivity obtaining.This is the reason due to below.Be because: the minimum widith of the pattern that the device that the minimum widith of the pattern that can form on the photomask using in the photo-mask process when forming seam and in fact utilizing is used in photo-mask process can form is restricted.
Below, the liquid crystal display of the FFS pattern of the manner of comparison 1 of studying with reference to the inventor, describes the problem of existing FFS pattern.Figure 10 is the schematic top plan view of active-matrix substrate of liquid crystal display of the FFS pattern of manner of comparison 1.In addition in Fig. 9 of patent documentation 2 and Fig. 6 of patent documentation 3, illustrate and the similar mode of manner of comparison 1.
The liquid crystal display of manner of comparison 1 possesses active-matrix substrate (array base palte) 510, the relative substrate (not shown) relative with array base palte and the liquid crystal layer (not shown) of being located at the horizontal alignment type between two substrates.As shown in figure 10, array base palte 510 comprises data bus 513, grid bus 551, TFT553, common electrode 515, is formed at the dielectric film (not shown) on common electrode 515 and is formed at the pixel electrode 517 on this dielectric film.The initial orientation direction of liquid crystal molecule, the direction of orientation while not applying voltage are set as the above-below direction of Figure 10.
Each pixel electrode 517 is formed with a plurality of seams 530 that are parallel to each other, and common electrode 515 is relative with seam 530.By being controlled at the voltage applying between pixel electrode 517 and common electrode 515, control the orientation of liquid crystal molecule, say and control rotation in more detail.Pixel electrode 517 comprises a plurality of linear parts 518 of being parallel to each other and by the interconnective coupling part 519,520 of linear parts.
Seam 530 has laterally zygomorphic shape, and seam 530 comprises respectively: straight line portion (principal part) 531,532; Principal part 531,532 is interconnected, 2 straight line portioies are connected to V word shape and the part (V word section) 533 that forms; And be located at respectively the linear parts (secondary portion) 534,535 between principal part 531,532 and coupling part 519,520.Like this, seam 530 is respectively between secondary portion 534 and principal part 531, between principal part 531 and V word section 533, between principal part 532 and V word section 533 and crooked between principal part 532 and secondary portion 535, V word section 533 also comprises 1 bend, so seam 530 has respectively 5 bends.In addition, the angle forming with respect to above-below direction of V word section 533 and secondary portion 534,535 is set to such an extent that be greater than principal part 531,532 itself.
V word section 533 and secondary portion the 534, the 535th, auxiliary part, in the region that comprises principal part 531,532, the orientation of most of liquid crystal molecule that liquid crystal layer comprises is controlled.In the region that comprises principal part 531 and the region that comprises principal part 532, the sense of rotation of liquid crystal molecule is contrary, and therefore, between two regions, the orientation of liquid crystal molecule is runed counter to.Therefore, the relatively large V word section 533 in angle forming with respect to above-below direction is set between two regions, between two regions, liquid crystal molecule is easily orientated thus.In addition, near coupling part 519, due to 519 electric fields that produce from coupling part, likely make the orientation disorder of liquid crystal molecule.Therefore, the relative large secondary portion 534 in angle forming with respect to above-below direction is set between coupling part 519 and principal part 531, can be suppressed at thus near the orientation disorder of liquid crystal molecules coupling part 519.For identical reason, be also provided with secondary portion 535.As above result is, from external partial the picture of liquid crystal display (is for example exerted pressure, picture is by finger presses), even if the local disorder that produces the local disorder of the liquid crystal molecular orientation causing due to this pressure, shows also can make these disorderly recoveries as soon as possible.
But, the problem shown in below existing in manner of comparison 1.
Seam 530 be arrange in parallel to each other, mutual identical flat shape, so the width S of V word section 533 and secondary portion 534,535 is less than the width S of principal part 531,532.In addition, the width L of the linear parts 518 of pixel electrode 517 compares in the part that forms V word section 533, secondary portion 534,535 and attenuates with the part that forms principal part 531,532.Therefore, from improving the viewpoint of panel transmissivity, while L and S being reduced to the ultimate value being allowed in technique in the region that is comprising principal part 531,532, in the region that comprises V word section 533 and the region that comprises secondary portion 534,535, L and S can exceed the ultimate value being allowed to.In this case, likely there are the various unfavorable conditions that the deviation due to technique causes.Particularly, for example, there is deviation in the mode brightness with each panel sometimes, even or identical panel also can produce show uneven.As the reason that such unfavorable condition occurs, consider it is the alignment offset due to mask, the wide variety of pattern etc.
On the other hand, from suppressing the viewpoint of the generation of such unfavorable condition, while L and S being set in the scope that is no more than the ultimate value being allowed in the region that is comprising V word section 533 and the region that comprises secondary portion 534,535, in the region that comprises principal part 531,532, L and S can become greatly, produce the reducing of decline, for example panel transmissivity of display performance.
As mentioned above, in existing FFS pattern, be difficult to make to suppress the unfavorable condition that the deviation due to technique causes and improve display performance and set up simultaneously.
The present invention completes in view of above-mentioned present situation, and its object is to provide and can suppresses the unfavorable condition causing due to process deviation and the liquid crystal display that improves display performance.
for the scheme of dealing with problems
The inventor has carried out various research to the liquid crystal display of the unfavorable condition that can suppress to cause due to process deviation and raising display performance and has found, a plurality of seams that are parallel to each other are respectively equipped with: the first straight line portion, and it extends at first direction, the second straight line portion, it is connected with one end of the first straight line portion, in second direction, extends, and bend, it is crooked in the first straight line portion and the interconnective region of the second straight line portion, the other end of a plurality of the first straight line portioies is configured on identical straight line, by in a plurality of seams, in pixel, be positioned at seaming of one end be the first seam (wherein, the mode that the adjacent seam of the first seam approaches the first seam with the first straight line portion and the second straight line portion is crooked), seam from the first seam away from more, the length of the first straight line portion is shorter, L in L and S in the region that can reduce thus to comprise the first straight line portion and the region that comprises the second straight line portion and S's is poor, even for example comprising L and the S in the region of the second straight line portion is the size that approaches the ultimate value being allowed to, the L in the region that also can prevent from comprising the first straight line portion and S surpass the ultimate value being allowed to.Consequently, the pattern that can suppress the seam that causes due to process deviation changes, and in addition, can improve transmissivity, thereby can address the above problem ideally, thereby reach the present invention.
That is, one aspect of the present invention is that following liquid crystal display is (below also referred to as liquid crystal display of the present invention.), it possesses: first substrate, the second substrate relative with above-mentioned first substrate and be located at above-mentioned first substrate and above-mentioned second substrate between the liquid crystal layer that comprises liquid crystal molecule, above-mentioned first substrate comprises: the first electrode, be located at the dielectric film on above-mentioned the first electrode and be located at the second electrode on above-mentioned dielectric film, above-mentioned the second electrode is formed with a plurality of seams of being located in pixel, above-mentioned the first electrode is relative with above-mentioned a plurality of seams, above-mentioned a plurality of seam is parallel to each other, above-mentioned a plurality of seam comprises respectively: the first straight line portion, and it extends at first direction; The second straight line portion, it is connected with one end of above-mentioned the first straight line portion, in second direction, extends; And bend, it is crooked in above-mentioned the first straight line portion and above-mentioned the second interconnective region of straight line portion, the other end of above-mentioned a plurality of the first straight line portioies is positioned on identical straight line, when when being positioned at seaming of one end in above-mentioned a plurality of seams being the first seam in above-mentioned pixel, the mode that the adjacent seam of above-mentioned the first seam approaches above-mentioned the first seam with the first straight line portion and the second straight line portion is crooked, seam away from stitching more from above-mentioned first, the length of above-mentioned the first straight line portion is shorter.
As the formation of liquid crystal display of the present invention, as long as must form such inscape, other inscape is not particularly limited.In addition, above-mentioned straight line is not concrete member, but imaginary line.
Preferred implementation in liquid crystal display of the present invention is shown below.Below shown in embodiment also can suitably combine.
When the direction of orientation of the above-mentioned liquid crystal molecule when not applying voltage is made as initial orientation direction, preferred above-mentioned first direction is different from above-mentioned initial orientation direction respectively with above-mentioned second direction.Thus, can more effectively control the orientation of liquid crystal molecule.
The angle that preferred above-mentioned first direction and above-mentioned initial orientation direction form is greater than the angle of above-mentioned second direction and the formation of above-mentioned initial orientation direction, and above-mentioned the first straight line portion is shorter than above-mentioned the second straight line portion.Thus, can make the first straight line portion as auxiliary part (secondary portion), the second straight line portion is played a role effectively as principal part.
The angle that preferred above-mentioned first direction and above-mentioned initial orientation direction form is 20～40 °, the angle that above-mentioned second direction and above-mentioned initial orientation direction form is 3～10 °, above-mentioned straight line is the first straight line, the above-mentioned crooked position of above-mentioned a plurality of seams is on the second identical straight line, and the angle that above-mentioned the first straight line and above-mentioned the second straight line form is 5～15 °.Thus, can effectively make owing to pressing the recovery of the orientation disorder causing and the raising of transmissivity is set up simultaneously.In addition, above-mentioned the second straight line is not concrete member, but imaginary line.
Above-mentioned a plurality of seam can also comprise respectively the 3rd straight line portion, and above-mentioned the 3rd straight line portion is connected with the above-mentioned other end of above-mentioned the first straight line portion, at third direction, extends, and above-mentioned the first straight line portion and above-mentioned the 3rd straight line portion are arranged to V word shape.Which is suitable for arranging in the central authorities of pixel the mode of V word section.
Preferably when the direction of orientation of the above-mentioned liquid crystal molecule when not applying voltage is made as initial orientation direction, the angle that above-mentioned third direction and above-mentioned initial orientation direction form is 20～40 °, above-mentioned a plurality of seam also comprises respectively: the 4th straight line portion, it is connected to one end not being connected with above-mentioned the first straight line portion of above-mentioned the 3rd straight line portion, in fourth direction, extends; And second bend, it is crooked in above-mentioned the 3rd straight line portion and above-mentioned the 4th interconnective region of straight line portion, above-mentioned straight line is the first straight line, above-mentioned second crooked position of above-mentioned a plurality of seams is on the 3rd identical straight line, the angle that above-mentioned the first straight line and above-mentioned the 3rd straight line form is 5～15 °, and the angle that above-mentioned fourth direction and above-mentioned initial orientation direction form is 3～10 °.Thus, can effectively make owing to pressing the recovery of the orientation disorder causing and the raising of transmissivity is set up simultaneously.In addition, above-mentioned the 3rd straight line is not concrete member, but imaginary line.
Also can be that above-mentioned the second electrode comprises adjacent with above-mentioned a plurality of seams 3 above linear parts and by above-mentioned 3 above interconnective connecting portions of linear parts, above-mentioned the first straight line portion is adjacent with above-mentioned connecting portion.Which is suitable for being adjacent to arrange with the coupling part of electrode the mode of secondary portion.
invention effect
According to the present invention, can realize and can suppress the unfavorable condition causing due to process deviation and the liquid crystal display that improves display performance.
Accompanying drawing explanation
Fig. 1 is the schematic top plan view of active-matrix substrate of liquid crystal display of the FFS pattern of embodiment 1.
Fig. 2 means the schematic top plan view of the common electrode of the active-matrix substrate of being located at embodiment 1.
Fig. 3 is the schematic cross-section of the active-matrix substrate of the line A-A ' shown in Fig. 1.
Fig. 4 is near the schematic top plan view of V word section of amplifying the pixel electrode that represents embodiment 1.
Fig. 5 is the schematic top plan view of active-matrix substrate of liquid crystal display of the FFS pattern of embodiment 2.
Fig. 6 is near the schematic top plan view of secondary portion of amplifying the pixel electrode that represents embodiment 2.
Fig. 7 is the schematic top plan view of active-matrix substrate of liquid crystal display of the FFS pattern of embodiment 3.
Fig. 8 is the schematic top plan view of active-matrix substrate of liquid crystal display of FFS pattern of the variation of embodiment 3.
Fig. 9 means the schematic top plan view of common electrode of the active-matrix substrate of the variation of being located at embodiment 3.
Figure 10 is the schematic top plan view of active-matrix substrate of liquid crystal display of the FFS pattern of manner of comparison 1.
Embodiment
Enumerate embodiment below, with reference to accompanying drawing, the present invention is described in more detail, but the present invention is not limited only to these embodiments.
At this instructions so-called " pixel ", refer to by adjacent 2 grid buss and 2 adjacent regions that data bus surrounds.
In addition, in the situation that not mentioning especially, so-called width refers to the width with respect to the direction of length direction quadrature.
Embodiment below can be applied to the display device such as televisor, personal computer, portable phone, auto-navigation system, information display particularly.
Embodiment 1
Embodiment 1 is the liquid crystal display of the FFS pattern of multidomain (2 farmland).
Fig. 1 is the schematic top plan view of active-matrix substrate of liquid crystal display of the FFS pattern of embodiment 1.The liquid crystal display 110 of embodiment 1 possesses: active-matrix substrate (array base palte) 10, the relative substrate 70 relative with substrate 10 and the liquid crystal layer 80 of being located at the horizontal alignment type between two substrates.As shown in figures 1 and 3, array base palte 10 comprises: insulated substrate 11, data bus 13, grid bus 51, gate insulating film 12, TFT53, the first dielectric film 14, the second dielectric film 16a, common electrode 15, be formed at the 3rd dielectric film 16b on common electrode 15 and be formed at the pixel electrode 17 on the 3rd dielectric film 16b.On the surface of liquid crystal layer 80 sides of array base palte 10, be provided with horizontal alignment film (not shown).As shown in Figure 2, common electrode 15 forms to cover in fact the mode of viewing area.Pixel electrode 17 is formed with a plurality of seams (opening of strip) 30 that are parallel to each other, and common electrode 15 is relative with seam 30.The voltage applying between pixel electrode 17 and common electrode 15 is controlled, controlled thus the orientation of liquid crystal molecule, control and rotate in more detail.The initial orientation direction of liquid crystal molecule, the direction of orientation while not applying voltage are set as the above-below direction (direction of arrow in Fig. 1) of Fig. 1.Substrate 70 comprises relatively: insulated substrate 21, colored filter 23 and black matrix 22.On the surface of relative liquid crystal layer 80 sides of substrate 70, be provided with horizontal alignment film (not shown).In addition, colored filter 23 also can be located at relative substrate 70 sides with black matrix 22, but is located at active-matrix substrate 10 sides.
Structure to the pixel electrode 17 in embodiment 1 is described in further detail.
And, when seam being positioned to seaming of Fig. 1 high order end in 30 being the first seam, the seam from the first seam away from more, the length of straight line portion 36,37 that forms V word section 33 is shorter.The first seam is the seam that is positioned at one end in pixel, and the mode that the adjacent seam of the first seam approaches the first seam with principal part 31 and straight line portion 36 is crooked.In addition, the mode that the adjacent seam of the first seam approaches the first seam with principal part 32 and straight line portion 37 is crooked.For example, from rightmost Fig. 1, respectively be 3 μ m, 4 μ m, 5 μ m and 6 μ m with the length of straight line portion 36 or the adjacent pixel electrode part of straight line portion 37.That is, as shown in Figure 4, at the central portion of pixel electrode 17, V word section 33 forms in the mode diminishing from left to right.Each principal part 31 and bend V word section 33 between of seam in 30, be that one end of straight line portion 36 is positioned on the second identical imaginary line (straight line corresponding with the above-mentioned second or the 3rd straight line), each principal part 32 and bend V word section 33 between of seam in 30, to be that one end of straight line portion 37 is positioned at the 3rd identical imaginary line (straight line corresponding with the above-mentioned second or the 3rd straight line) upper, the summit of each V word section 33 in seam 30, is that the other end of straight line portion 36,37 is positioned on the first identical imaginary line (straight line corresponding with above-mentioned the first straight line).The first imaginary line and the second imaginary line form the angle (c °) of regulation.Equally, the first imaginary line and the 3rd imaginary line form the angle (c °) of regulation.Seam from the first seam away from more, the bend between the bend between principal part 31 and V word section 33 and principal part 32 and V word section 33 more approaches the first imaginary line.
By such formation pixel electrode 17, L and the S in the region that can reduce to comprise principal part 31,32 and comprise V word section 33(straight line portion 36,37) region in L and S poor, also can make L and S in two regions in fact mutually identical.
On the other hand, in the liquid crystal display 510 of the manner of comparison 1 of existing FFS pattern, as shown in figure 10, between seam, electrode all forms roughly the same shape, and the angle c shown in Fig. 1 and Fig. 4 ° does not exist.
Now, as mentioned above, the width S of V word section 533 and secondary portion 534,535 is less than the width S of principal part 531,532.In addition, the width L of the linear parts 518 of pixel electrode 517 compares in the part that forms V word section 533, secondary portion 534,535 and attenuates with the part that forms principal part 531,532.
Therefore,, in the liquid crystal display 510 of manner of comparison 1, in the situation that will reduce the summation of width L and width S as far as possible, the mode that need to become with the summation of the width L in the region that comprises V word section 533 and width S the ultimate value being allowed to designs.For example, the summation that is respectively 2.5 μ m and 4.0 μ m(width L and width S in the ultimate value being allowed to of width L and width S is 6.5 μ m) time, when so that when forming the width L of electrode part of principal part 531,532 and mode that the width S of principal part 531,532 becomes respectively minimum value 2.5 μ m and 4.0 μ m and designing, the width that forms the electrode of V word section 533 is 2.2 μ m, the width S of V word section 533 is 3.4 μ m degree, is less than the ultimate value being allowed to.Consequently, in the situation that the process deviation of the alignment offset of generation photomask etc. can produce the deviation of the transmissivity between display panels or the deviation of the transmissivity in 1 display panels (viewing area) (showing uneven).Therefore, in the liquid crystal display 510 of manner of comparison 1, need in the region that comprises V word section 533, width L and width S be set in the scope that is no more than the ultimate value being allowed to, but when such look is set, in the region that comprises principal part 531,532, width L and width S can become greatly, produce the reducing of decline, for example panel transmissivity of display performance.
On the other hand, in the liquid crystal display 110 of embodiment 1, width L and the width S in the region that can reduce to comprise principal part 31,32 and comprise V word section 33(straight line portion 36,37) the width L in region and width S poor, therefore, even if for example comprise the L in region of principal part and S, become near size tolerance limit value, L and the S in the region that also can prevent from comprising V word section surpass tolerance limit value.Consequently, the pattern that can suppress the seam that causes due to process deviation changes, and in addition, can improve transmissivity.Particularly, by the L in the region that comprises principal part 31,32 and S with comprise V word section 33(straight line portion 36,37) region in L and the ultimate value that is allowed to of S in the situation that be reduced in technique, be set as in fact mutually identical value, the liquid crystal display 110 of embodiment 1 is compared transmissivity and is improved 4% with the liquid crystal display 510 of the manner of comparison 1 shown in Figure 10.
The size of angle a ° and angle b ° is not particularly limited, and as the liquid crystal display of multidomain, can obtain suitable visual angle, as long as be set as being inhibited, disclination produces and anti-angle of pressing performance.Particularly, optimized angle a ° is set as 20～40 °, and optimized angle b ° is set as 3～10 °.
In addition, the size of angle c ° is also not particularly limited, and the mode that preferably becomes with the summation of L and S the minimum value that can manufacture on the whole at seam is set, and particularly, is preferably set to 5～15 °.
Above the structure of the pixel electrode 17 in embodiment 1 is illustrated.Below, the material of other structure, each member and manufacture method are described.
TFT53 is the on-off element that possesses semiconductor layer 54, gate electrode 55a, source electrode 55b and drain electrode 55c.The gate electrode 55a of TFT53 is drawn and is formed by a part for grid bus 51.The source electrode 55b of TFT53 is connected with semiconductor layer 54 respectively with drain electrode 55c.The drain electrode 55c of TFT53 is connected with pixel electrode 17 by contact hole 71.Gate electrode 55a and semiconductor layer 54 are overlapped across gate insulating film 12.Source electrode 55b is connected with drain electrode 55c by semiconductor layer 54, the sweep signal that utilization is input to gate electrode 55a by grid bus 51 flows through the adjustment of the magnitude of current of semiconductor layer 54, controls the transmission of press the data-signal that the order of source electrode 55b, semiconductor layer 54, drain electrode 55c and pixel electrode 17 inputs by data bus 13.
As the material of insulated substrate 11,21, can suitably use the transparent materials such as glass, plastics.Material as gate insulating film 12, the first dielectric film 14, the second dielectric film 16a and the 3rd dielectric film 16b, can suitably be used the transparent materials such as silicon nitride, monox, photonasty acryl resin.For example, utilize plasma enhanced chemical vapor deposition (Plasma Enhanced Chemical Vapor Deposition:PECVD) method to make silicon nitride film film forming, utilize mould coating process (coating) method on silicon nitride film, to make photonasty acrylic resin film film forming, form thus the first dielectric film 14, the second dielectric film 16a and the 3rd dielectric film 16b.The hole arranging in dielectric film 14,16 and 16b in order to form contact site can form by carrying out dry-etching (channel-etch).
Utilize sputtering method etc. to make the metals such as titanium, chromium, aluminium, molybdenum or their alloy with individual layer or multilayer film forming, then by photoetching process etc., carry out patterning, can form thus grid bus 51, data bus 13 or form various distributions and the electrode of TFT53.About these various distributions and electrode, be formed at identical layer, use respectively identical material, can effectively manufacture thus.
The semiconductor layer 54 of TFT53 for example comprises high ohmic semiconductor layer and low resistance semiconductor layer, and above-mentioned high ohmic semiconductor layer comprises amorphous silicon, polysilicon etc., and above-mentioned low resistance semiconductor layer is included in n+ amorphous silicon of the impurity such as Doping Phosphorus in amorphous silicon etc.In addition, as semiconductor layer 54, can use the oxide semiconductor layer of zinc paste etc.The shape of semiconductor layer 54 can be utilized photoetching process etc. to carry out patterning and decide after utilizing the film forming such as PECVD method.
Such as utilizing sputtering method etc. to make the transparent conductive materials such as indium tin oxide (ITO), indium-zinc oxide (IZO), zinc paste (ZnO), tin oxide (SnO) or their alloy with individual layer or multilayer film forming and after forming, use photoetching process to carry out patterning, can form thus pixel electrode 17 and common electrode 15.Be located at the seam 30 of pixel electrode 17, the opening of being located at common electrode 15 also can form with patterning in addition simultaneously.
As the material of colored filter 23, can suitably use the light transmissive photoresist corresponding with each color (colored resist).As long as the material of black matrix 22 has light-proofness, be not particularly limited, can suitably use the resin material that contains black pigment or there is the metal material of light-proofness.
The active-matrix substrate 10 of making like this and relative substrate 70 the sept that comprises the column of insulating material on side's substrate, arrange a plurality of after, use encapsulant is fitted.Between active-matrix substrate 10 and relative substrate 70, be formed with liquid crystal layer 80, but in the situation that method is dripped in use, before baseplate-laminating, carry out dripping of liquid crystal material, in the situation that using vacuum impregnation, after baseplate-laminating, inject liquid crystal material.Liquid crystal layer 80 comprises the liquid crystal molecule (preferably nematic liquid crystal molecules) with positive dielectric anisotropy.And, each substrate, attach polarization plates, phase retardation film etc. with on the face contrary side of liquid crystal layer 80 sides, complete thus display panels.And, gate drivers, source electrode driver, display control circuit etc. are installed on display panels, and combination backlight etc., complete thus and the corresponding liquid crystal display of purposes.
The structure example of the display panels of embodiment 1 is if used optical microscope (Olympus Corp manufactures, and semiconductor/FPD checks microscope M * 61L) and energy dispersion type X ray light analyser to set up type scanning transmission electron microscope (STEM-EDX:Scanning Transmission Electron Microscope Energy Dispersive X-ray Spectroscope, the manufacture HD-2700 of Hitachi Hi-tech Technology Corp. (the Ha イ テ of Hitachi Network ノ ロ ジー ズ society)) to confirm and measure.
Embodiment 2
Embodiment 2 is liquid crystal display of the FFS pattern of multidomain (2 farmland).
Fig. 5 is the schematic top plan view of active-matrix substrate of liquid crystal display of the FFS pattern of embodiment 2.In embodiment 1, as shown in Figure 1, at totally 3 bends that are formed with V word section 33 between principal part 31 and V word section 33 and between principal part 32 and V word section 33, but in embodiment 2, except principal part 131,132 and V word section 133, also be formed with linear parts (secondary portion) 134,135, and be formed with bend between principal part 131 and secondary portion 134 and between principal part 132 and secondary portion 135, be formed with totally 5 bends.Other formation and embodiment 1 are same, therefore omit explanation herein.Below, the structure of the pixel electrode 117 of the liquid crystal display 210 of embodiment 2 is described.
And seam 130 comprises the linear parts (secondary portion) 134,135 of being located at respectively between principal part 131,132 and coupling part 119,120.Pair portion 134,135 is corresponding with above-mentioned the first straight line portion.As shown in Figure 6, the angle (d °) that the initial orientation direction of secondary portion 134,135 and liquid crystal molecule (two arrows in Fig. 5) forms is set to such an extent that be greater than the angle (b °) forming with respect to above-below direction of principal part 131,132.Pair portion 134,135 and V word section 133(straight line portion 136,137) be auxiliary part equally, in the region that comprises principal part 131,132, control the orientation of most of liquid crystal molecule that liquid crystal layer 80 comprises.Near coupling part 119, due to 119 electric fields that produce from coupling part, likely make the orientation disorder of liquid crystal molecule.Therefore, between coupling part 119 and principal part 131, be provided with the relative large secondary portion 134 in angle forming with respect to above-below direction, can be suppressed at thus near the orientation disorder of liquid crystal molecule coupling part 119.For the same reason, be also provided with secondary portion 135.
In embodiment 1, be conceived to principal part 31,32 and V word section 33(straight line portion 36,37), the seam that is arranged in Fig. 1 high order end is illustrated as the first seam, but in the present embodiment, when being conceived to secondary portion 134,135, the seam and the first seam that are arranged in Fig. 5 low order end are corresponding.The first seam is the seam that is positioned at one end in pixel, and the mode that the adjacent seam of the first seam approaches the first seam with principal part 131 and secondary portion 134 is crooked.In addition, the mode that the adjacent seam of the first seam approaches the first seam with principal part 132 and secondary portion 135 is crooked.From the seam of this first seam away from more, the length of secondary portion 134,135 is shorter.For example, the length of secondary portion 134 or the pixel electrode part adjacent with secondary portion 135 becomes respectively successively 5.5 μ m, 4 μ m, 2.5 μ m and 1 μ m in Fig. 5 from right-hand.It is upper that one end of each secondary portion 134,135 in seam 130 is positioned at the second identical imaginary line (straight line corresponding with above-mentioned the second straight line), and the other end of secondary portion 134,135 is positioned on the first identical imaginary line (straight line corresponding with above-mentioned the first straight line).As shown in Figure 6, the first imaginary line and the second imaginary line form the angle (e °) of regulation.Seam from the first seam away from more, the bend between the bend between secondary portion 134 and principal part 131 and secondary portion 135 and principal part 132 more approaches the first imaginary line.
By such formation pixel electrode 117, the L in L and the S in the region that can reduce to comprise principal part 131,132 and the region that comprises secondary portion 134,135 and S's is poor, also can make L and S in two regions in fact mutually identical.
On the other hand, in the liquid crystal display 510 of the manner of comparison 1 of existing FFS pattern, as shown in figure 10, between seam, electrode all forms roughly same shape, and the angle e shown in Fig. 6 ° does not exist.
Now, as mentioned above, the width S of secondary portion 534,535 is less than the width S of principal part 531,532.
Therefore,, in the liquid crystal display 510 of manner of comparison 1, in the situation that will reduce the summation of width L and width S as far as possible, the mode that need to become with the summation of the width L in the region that comprises secondary portion 534,535 and width S the ultimate value being allowed to designs.For example, the summation that is respectively 2.5 μ m and 4.0 μ m(width L and width S in the ultimate value being allowed to of width L and width S is 6.5 μ m) time, when so that when forming the width L of electrode part of principal part 531,532 and the width S of principal part 531,532 and becoming respectively 2.5 μ m of minimum value and the mode of 4.0 μ m and design, the width that forms the electrode of secondary portion 534,535 becomes 2.0 μ m, the width S of pair portion 534,535 becomes 4.1 μ m degree, is less than the ultimate value being allowed to.Consequently, in the situation that the process deviation of the alignment offset of generation photomask etc., the deviation of the transmissivity between generation display panels or the transmissivity deviation in 1 display panels (viewing area) (showing uneven).Therefore, in the liquid crystal display 510 of manner of comparison 1, need in the region that comprises secondary portion 534,535, width L and width S be set in the scope that is no more than the ultimate value being allowed to, but, if like this, in the region that comprises principal part 531,532, width L and width S can become greatly, thereby produce the reducing of decline, for example panel transmissivity of display performance.
On the other hand, in the liquid crystal display 210 of embodiment 2, poor due to the width L in width L and the width S in the region that can reduce to comprise principal part 131,132 and the region that comprises secondary portion 134,135 and width S, therefore, even if for example comprise the L in region of principal part and S, become near size tolerance limit value, L and the S in the region that also can prevent from comprising secondary portion surpass tolerance limit value.Consequently, the pattern that can suppress the seam that the deviation due to technique causes changes, and in addition, can improve transmissivity.Particularly, L in the region that comprises principal part 131,132 and S are being set as in fact mutually identical value with L and S in the region that comprises secondary portion 134,135 in the situation that be reduced to the ultimate value being allowed in technique, the liquid crystal display 210 of embodiment 2 is compared transmissivity and is improved 8% with the liquid crystal display 510 of the manner of comparison 1 shown in Figure 10.
The size of angle d ° is not particularly limited, and as the liquid crystal display of multidomain, can obtain suitable visual angle, as long as be set as being inhibited, disclination produces and anti-angle of pressing performance.Particularly, optimized angle d ° is set as 20～40 °.
In addition, the size of angle e ° is also not particularly limited, and the mode that preferably becomes with the summation of L and S the minimum value that can manufacture on the whole at seam is set, and particularly, is preferably set to 5～15 °.
Embodiment 3
Embodiment 3 is liquid crystal display of the FFS pattern of single domain.
Fig. 7 is the schematic top plan view of active-matrix substrate of liquid crystal display of the FFS pattern of embodiment 3.In embodiment 1 and 2, as shown in Figure 1 and Figure 5, be formed with respectively V word section 33,133, and do not form V word section in embodiment 3.Be formed with principal part 231 and linear parts (secondary portion) 234,235, and be formed with bend between principal part 231 and secondary portion 234 and between principal part 231 and secondary portion 235, be formed with 2 bends altogether.Other formation and embodiment 1 are same, therefore in this description will be omitted.Below, the structure of the pixel electrode 217 of the liquid crystal display 310 of embodiment 3 is described.
Seam 230 has point-symmetric shape, comprises the linear parts (secondary portion) 234,235 of being located at respectively between principal part 231 and coupling part 219,220.Principal part 231 is corresponding with above-mentioned the second straight line portion, and secondary portion 234,235 is corresponding with above-mentioned the first straight line portion.From the viewpoint same with embodiment 1, the angle initialization that the initial orientation direction of secondary portion 234,235 and liquid crystal molecule forms must be greater than the angle of the initial orientation direction formation of principal part 231 and liquid crystal molecule.And the angle that the initial orientation direction of secondary portion 234 and liquid crystal molecule forms is identical in fact with the angle that the initial orientation direction of secondary portion 235 and liquid crystal molecule forms.That is, secondary portion 234 is to extending with secondary portion 235 diametical direction.Pair portion the 234, the 235th, auxiliary part, in the region that comprises principal part 231, the orientation of most of liquid crystal molecule that liquid crystal layer 80 comprises is controlled.Near coupling part 219, due to 219 electric fields that produce from coupling part, likely make the orientation disorder of liquid crystal molecule.Therefore,, by the relative large secondary portion 234 in angle forming with respect to above-below direction is being set between coupling part 219 and principal part 231, can be suppressed near the orientation disorder of liquid crystal molecules coupling part 219.For identical reason, be also provided with secondary portion 235.
In the present embodiment, when being conceived to secondary portion 234, the seam that is arranged in Fig. 7 right-hand member is corresponding with the first seam.The first seam is the seam that is positioned at one end in pixel, and the mode that the adjacent seam of the first seam approaches the first seam with principal part 231 and secondary portion 234 is crooked.From the seam of this first seam away from more, the length of secondary portion 234 is shorter.It is upper that one end of each secondary portion 234 in seam 230 is positioned at the second identical imaginary line (straight line corresponding with above-mentioned the second straight line), and the other end of secondary portion 234 is positioned on the first identical imaginary line (straight line corresponding with above-mentioned the first straight line).The first imaginary line and the second imaginary line form the angle of regulation.Seam from the first seam away from more, the bend between secondary portion 234 and principal part 231 more approaches the first imaginary line.On the other hand, when being conceived to secondary portion 235, the seam that is arranged in Fig. 7 left end is corresponding with the first seam.It is upper that one end of each secondary portion 235 in seam 230 is positioned at the second identical imaginary line (straight line corresponding with above-mentioned the second straight line), and the other end of secondary portion 235 is positioned on the first identical imaginary line (straight line corresponding with above-mentioned the first straight line).The first imaginary line and the second imaginary line form the angle of regulation.Seam from the first seam away from more, the bend between secondary portion 235 and principal part 231 more approaches the first imaginary line.
By such formation pixel electrode 217, the L in L and the S in the region that can reduce to comprise principal part 231 and the region that comprises secondary portion 234,235 and S's is poor, also can make L and S in two regions in fact mutually identical.
On the other hand, in the liquid crystal display 510 of the manner of comparison 1 of existing FFS pattern, as shown in figure 10, between seam, electrode all forms roughly same shape, and the angle that the first imaginary line and the second imaginary line form does not exist.
Now, as mentioned above, the width S of secondary portion 534,535 is less than the width S of principal part 531,532.
Therefore,, in the liquid crystal display 510 of manner of comparison 1, in the situation that will reduce the summation of width L and width S as far as possible, the mode that need to become with the summation of the width L in the region that comprises secondary portion 534,535 and width S the ultimate value being allowed to designs.For example, the summation that is not 2.5 μ m and 4.0 μ m(width L and width S in the ultimate value being allowed to of width L and width S is 6.5 μ m) time, when making to form the width L of electrode part of principal part 531,532 and mode that the width S of principal part 531,532 becomes respectively minimum value 2.5 μ m and 4.0 μ m and design, the width that forms the electrode of secondary portion 534,535 becomes 2.0 μ m, the width S of pair portion 534,535 becomes 4.1 μ m degree, is less than the ultimate value being allowed to.Consequently, in the situation that produce the deviation of the techniques such as alignment offset of photomask, can produce the deviation of the transmissivity between display panels or the deviation of the transmissivity in 1 display panels (viewing area) (showing uneven).Therefore, in the liquid crystal display 510 of manner of comparison 1, need in the region that comprises secondary portion 534,535, width L and width S be set in the scope that is no more than the ultimate value being allowed to, but while designing like this, in the region that comprises principal part 531,532, width L and width S can become greatly, produce the reducing of decline, for example panel transmissivity of display performance.
On the other hand, in the liquid crystal display 310 of embodiment 3, the width L in width L and the width S in the region that can reduce to comprise principal part 231 and the region that comprises secondary portion 234,235 and width S poor, therefore even if for example comprise the L in region of principal part and S, become near size tolerance limit value, L and the S in the region that also can prevent from comprising secondary portion surpass tolerance limit value.Consequently, the pattern that can suppress the seam that the deviation due to technique causes changes, and in addition, can improve transmissivity.Particularly, by the L in the region that comprises principal part 231 and S and L in the region that comprises secondary portion 234,235 and S in the situation that be reduced to the ultimate value that is allowed in technique, be set as in fact mutually identical value, the liquid crystal display 310 of embodiment 3 is compared transmissivity and is improved 8% with the liquid crystal display 510 of the manner of comparison 1 shown in Figure 10.
The size of the angle that the angle that the initial orientation direction of pair portion 234 and liquid crystal molecule forms and the initial orientation direction of secondary portion 234 and liquid crystal molecule form is not particularly limited respectively, as long as be set as can obtaining suitable visual angle as the liquid crystal display of multidomain, the disclination that can be inhibited produces and anti-angle of pressing performance.Particularly, preferably these angle initializations are 20～40 °.
The size at the angle that the initial orientation direction of principal part 231 and liquid crystal molecule forms is not particularly limited, as long as be set as can obtaining suitable visual angle as the liquid crystal display of multidomain, the disclination that can be inhibited produces and anti-angle of pressing performance.Particularly, preferably this angle initialization is 3～10 °.
The size of the angle that the first imaginary line and the second imaginary line form is also not particularly limited, and the mode that preferably becomes with the summation of L and S the minimum value that can manufacture on the whole at seam is set, and particularly, is preferably set to 5～15 °.
The variation that represents embodiment 1～3 below.
In embodiment 1～3, the long side direction that is sewn on pixel extends, but can be also the mode in the short side direction elongation of pixel.
In embodiment 1～3, on common electrode, be formed with pixel electrode, and pixel electrode form seamed, but can be also on pixel electrode, to be formed with common electrode and common electrode forms seamed form.About such form, use the variation of embodiment 3 to describe below.
Fig. 8 is the schematic top plan view of active-matrix substrate of liquid crystal display of FFS pattern of the variation of embodiment 3.Fig. 9 means the schematic top plan view of common electrode of the active-matrix substrate of the variation of being located at embodiment 3.
In the liquid crystal display 410 of the variation of embodiment 3, as shown in Figure 9, common electrode 315 forms to be covered in the most mode of viewing area.Common electrode 315 is formed on pixel electrode 317, and is formed with at common electrode 315 a plurality of seams 330 that are parallel to each other, and common electrode 315 comprises 1 above linear parts.On the other hand, as shown in Figure 8, at pixel electrode 317, do not form seam, it is tabular that pixel electrode 317 does not have crack and forms, relative with seam 330.
It is for No. 2011-175465 basis that the application be take Japan's patented claim of filing an application on August 10th, 2011, and request is based on Paris Convention and even enter the right of priority of the rules of state.The whole of the content of this application are programmed in present specification as reference.
description of reference numerals
10: active-matrix substrate
11,21: insulated substrate
12: gate insulating film
13,513: data bus
14: the first dielectric films
15,315,515: common electrode
16a: the second dielectric film
16b: the 3rd dielectric film
17,117,217,317,517: pixel electrode
18,118,218,518: linear parts
19,20,119,120,219,220,519,520: coupling part
22: black matrix
23: colored filter
30,130,230,330,530: seam
31,32,131,132,231,331,531,532: principal part
33,133,533:V word portion
36,37,136,137: straight line portion
51,551: grid bus
53,553:TFT(thin film transistor (TFT))
54: semiconductor layer
55a: gate electrode
55b: source electrode
55c: drain electrode
70: relative substrate
71: contact hole
80: liquid crystal layer
110,210,310,410,510: liquid crystal display
134,135,234,235,334,335,534,535: secondary portion
Claims (7)
1. a liquid crystal display, possesses: first substrate, the second substrate relative with above-mentioned first substrate and be located at above-mentioned first substrate and above-mentioned second substrate between the liquid crystal layer that comprises liquid crystal molecule,
Above-mentioned first substrate comprises: the first electrode, is located at the dielectric film on above-mentioned the first electrode and is located at the second electrode on above-mentioned dielectric film,
Above-mentioned the second electrode is formed with a plurality of seams of being located in pixel,
Above-mentioned the first electrode is relative with above-mentioned a plurality of seams,
Above-mentioned a plurality of seam is parallel to each other,
Above-mentioned a plurality of seam comprises respectively: the first straight line portion, and it extends at first direction; The second straight line portion, it is connected with one end of above-mentioned the first straight line portion, in second direction, extends; And bend, it is crooked in above-mentioned the first straight line portion and above-mentioned the second interconnective region of straight line portion,
The other end of above-mentioned a plurality of the first straight line portioies is positioned on identical straight line,
When by being positioned at seaming of one end being the first seam in above-mentioned pixel in above-mentioned a plurality of seams,
The mode that the adjacent seam of above-mentioned the first seam approaches above-mentioned the first seam with the first straight line portion and the second straight line portion is crooked,
Seam away from stitching more from above-mentioned first, the length of above-mentioned the first straight line portion is shorter.
2. liquid crystal display according to claim 1, when the direction of orientation of the above-mentioned liquid crystal molecule when not applying voltage is made as initial orientation direction,
Above-mentioned first direction is different from above-mentioned initial orientation direction respectively with above-mentioned second direction.
3. liquid crystal display according to claim 2, the angle that above-mentioned first direction and above-mentioned initial orientation direction form is greater than the angle that above-mentioned second direction and above-mentioned initial orientation direction form,
Above-mentioned the first straight line portion is shorter than above-mentioned the second straight line portion.
4. according to the liquid crystal display described in claim 2 or 3, the angle that above-mentioned first direction and above-mentioned initial orientation direction form is 20～40 °,
The angle that above-mentioned second direction and above-mentioned initial orientation direction form is 3～10 °,
Above-mentioned straight line is the first straight line,
The above-mentioned crooked position of above-mentioned a plurality of seams on the second identical straight line,
The angle that above-mentioned the first straight line and above-mentioned the second straight line form is 5～15 °.
5. according to the liquid crystal display described in any one in claim 1～4, above-mentioned a plurality of seams also comprise respectively the 3rd straight line portion, and above-mentioned the 3rd straight line portion is connected with the above-mentioned other end of above-mentioned the first straight line portion, at third direction, extend,
Above-mentioned the first straight line portion and above-mentioned the 3rd straight line portion are set as V word shape.
6. liquid crystal display according to claim 5, when the direction of orientation of the above-mentioned liquid crystal molecule when not applying voltage is made as initial orientation direction,
The angle that above-mentioned third direction and above-mentioned initial orientation direction form is 20～40 °,
Above-mentioned a plurality of seam also comprises respectively: the 4th straight line portion, and it is connected to one end not being connected with above-mentioned the first straight line portion of above-mentioned the 3rd straight line portion, in fourth direction, extends; And second bend, it is crooked in above-mentioned the 3rd straight line portion and above-mentioned the 4th interconnective region of straight line portion,
Above-mentioned straight line is the first straight line,
Above-mentioned second crooked position of above-mentioned a plurality of seams on the 3rd identical straight line,
The angle that above-mentioned the first straight line and above-mentioned the 3rd straight line form is 5～15 °,
The angle that above-mentioned fourth direction and above-mentioned initial orientation direction form is 3～10 °.
7. according to the liquid crystal display described in any one in claim 1～4, above-mentioned the second electrode comprises: 3 above linear parts, and it is adjacent with above-mentioned a plurality of seam; And connecting portion, it interconnects above-mentioned 3 above linear parts,
Above-mentioned the first straight line portion is adjacent with above-mentioned connecting portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011175465 | 2011-08-10 | ||
| JP2011-175465 | 2011-08-10 | ||
| PCT/JP2012/069798 WO2013021929A1 (en) | 2011-08-10 | 2012-08-03 | Liquid crystal display |
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| Publication Number | Publication Date |
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| CN103733130A true CN103733130A (en) | 2014-04-16 |
| CN103733130B CN103733130B (en) | 2016-03-16 |
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| CN201280038824.7A Active CN103733130B (en) | 2011-08-10 | 2012-08-03 | Liquid crystal display |
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| JP (1) | JP5756860B2 (en) |
| CN (1) | CN103733130B (en) |
| WO (1) | WO2013021929A1 (en) |
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| CN104570511A (en) * | 2014-12-29 | 2015-04-29 | 厦门天马微电子有限公司 | Array base plate, liquid crystal display panel and display device |
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| CN106200154A (en) * | 2016-08-31 | 2016-12-07 | 厦门天马微电子有限公司 | The manufacture method of array base palte, display floater and array base palte |
| CN106842723A (en) * | 2015-12-02 | 2017-06-13 | 三星显示有限公司 | Liquid crystal display |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5756860B2 (en) | 2015-07-29 |
| JPWO2013021929A1 (en) | 2015-03-05 |
| WO2013021929A1 (en) | 2013-02-14 |
| CN103733130B (en) | 2016-03-16 |
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