CN101063784B - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN101063784B CN101063784B CN2007101091703A CN200710109170A CN101063784B CN 101063784 B CN101063784 B CN 101063784B CN 2007101091703 A CN2007101091703 A CN 2007101091703A CN 200710109170 A CN200710109170 A CN 200710109170A CN 101063784 B CN101063784 B CN 101063784B
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Abstract
To provide a liquid crystal display device in which deterioration of contrast due to a protrusion or a slit used for division of alignment can be prevented in the liquid crystal display device including a liquid crystal which has a negative dielectric anisotropy exhibiting vertical alignment as an initial alignment state. There is provided a liquid crystal display device comprising a liquid crystal layer, which includes a liquid crystal having a negative dielectric anisotropy exhibiting vertical alignment as an initial alignment state, between a pair of substrates and disposed to be opposite to each other, in which alignment control means for controlling alignment of the liquid crystal layer is provided on at least one of electrodes provided on the pair of substrates, and in which a light-shielding film BM two-dimensionally overlapped with the alignment control means is provided on at least one substrate of the pair of substrates.
Description
Technical field
The present invention relates to liquid crystal indicator and electronic equipment.
Background technology
Now, the most widely used mode of conduct in liquid crystal indicator, known TN twisted-nematic (Twisted Nematic) pattern that normal white mode is arranged.Recently, along with liquid crystal indicator is significantly progressive, its image quality also rises to the equal extent with CRT.But the liquid crystal indicator of TN pattern has the narrow shortcoming in visual angle.For addressing this problem, occur dielectric anisotropy is negative liquid crystal vertical orientated VA (Vertical Alignment) pattern between a pair of substrate of subtend that LCD TV etc. is by commercialization now.It is wide that this kind VA mode LCD has the visual angle, the characteristics of high-contrast.
In addition, known in the liquid crystal indicator of VA pattern have employing that the direction of orientation of liquid crystal molecule is divided into the structure of a plurality of different directions in pixel, can realize the characteristic of wide viewing angle thus.As a kind of concrete structure of cutting apart that is orientated; Disclose on the transparency electrode of ITO etc. the structure in slit be set, above transparency electrode, be provided with the structure of jut; Through the technology of toppling direction that such slit or jut be controlled at liquid crystal vertical orientated when applying voltage being set (for example, with reference to patent documentation 1.)。
In addition, in existing transflective liquid crystal display device, the narrow problem in visual angle during transmission shows has appearred.This is because the inner face at liquid crystal cells is provided with the Transflective plate in order not produce parallax, and a slice polarization plates that therefore just must only be used in observer's setting reflects demonstration, and the degree of freedom of optical design is little.Therefore, in order to address this problem, Jisaki etc. propose the scheme of the new liquid crystal indicator of the vertical orientated liquid crystal of use in following non-patent literature 1.It is characterized by following 3 points.
(1) makes that dielectric anisotropy is that the liquid crystal born is vertical orientated on substrate, through applying " VA (Vertical Alignment) pattern " that voltage makes it to topple over.
(2) make transmission viewing area " many interstitial structures " different with the liquid crystal bed thickness (cell gap) in reflective display region territory.
(3) polygon-octagonal is arranged in the transmission viewing area, the central authorities of the transmission viewing area on the subtend substrate are provided with projection makes the liquid crystal in this zone topple over to all directions.That is, " orientation is cut apart (multiple zone structural) ".
In addition, in the above-mentioned document, use projection as the orientation control structure of control liquid crystal toppling direction, other is known to have through the slit is set on electrode and makes electrical field deformation, controls the toppling direction of liquid crystal through this electrical field deformation.
In addition, known have in transmissive liquid crystal display device, adopt vertical alignment mode.Specifically, for example be following method, a pixel segmentation is become a plurality of sub-points, with a pixel multizoneization, realize the method (for example, with reference to patent documentation 2) of wide viewing angle through on the object substrate of the central authorities that are positioned at each son point, protuberance being set.Its characteristic, as follows.
(1) pixel segmentation is become a plurality of sub-points.
(2) shape of son point is become rotation symmetry (for example, circular, quadrangle roughly, roughly star etc.).
(3) on the shape of (2), at the center that the center or the son of peristome are put protuberance is set liquid crystal molecule is orientated by the center radially, improve orientation limitations power.
(4) stipulate the torsional direction of liquid crystal molecule through adding the spiral inducing agent, prevent inequality by the bad coarse stain shape that causes of orientation.
Patent documentation 2 spies open the 2002-202511 communique
Non-patent literature 1 " Development of transflective LCD for high contrast andwide viewing angle by using homeotropic alignment ", M.Jisaki?et?al。，Asia?Display/IDW`01，p。133-136(2001)
But from being used to be orientated the liquid crystal material on the jut of cutting apart, the liquid crystal molecule on the jut is not vertical fully with respect to substrate, follows the inclination of jut to have toppling over to a certain degree.Inclination by this liquid crystal molecule produces birefringence, and light spills, and causes that contrast reduces.
In addition, on the interface in the slit that is provided with on the transparency electrode, produce intensive edge (fringe) effect of equipotential line at interface, slit, the OFF current potential that particularly drives is 0 volt when above, produces inclination a little by weak electric field liquid crystal molecule, causes the contrast reduction.
In addition according to the technology of putting down in writing in the above-mentioned prior art document; Through adopting said structure (by the slit of configuration up and down, the tilting electric field that projection causes, the orientation limitations that perhaps pre-tilt causes by shape for lugs) thereby the demonstration of the multizoneization that produces realization wide viewing angle, these structures have following problem on principle.That is,,,, voltage produces light leak and contrast reduction when applying on two substrates up and down so be different conditions in state of orientation and other zones of the liquid crystal molecule of the periphery of orientation limitations structure because the orientation limitations structure of slit, projection etc. is set.When as the orientation limitations structure projection being set, the orientation the when height of projection applies voltage more greatly is controlled good more in addition, and response speed also improves, and light leaks and also enlarges markedly.
Summary of the invention
The present invention makes invention in view of above-mentioned the problems of the prior art; A kind of liquid crystal indicator and electronic equipment are provided; This liquid crystal indicator can be realized preventing to follow the orientation control contrast of vertical orientated liquid crystal to reduce, and the high image quality with wide viewing angle and high-contrast shows.
In order to achieve the above object, the present invention adopts following structure.
Liquid crystal indicator of the present invention; Be the liquid crystal indicator of the liquid crystal layer that vertical orientated dielectric anisotropy constitutes for negative liquid crystal between a pair of substrate of each other subtend configuration, having initial orientation; On at least one substrate in above-mentioned a pair of substrate; Be provided for limiting the orientation limitations structure of said liquid crystal aligning, at least one substrate of said a pair of substrate, the plane disposes photomask overlappingly on the position corresponding with said orientation limitations structure.
Structure thus, because with position overlapped place, said orientation limitations structural plan light-shielding structure is being set, user's side that can prevent at this liquid crystal indicator is observed the light leak that causes because of tilted alignment of orientation limitations structure liquid crystal molecule etc.Thus, can prevent effectively that the contrast that said light leak causes from reducing, and can obtain the demonstration of wide viewing angle and high-contrast.
In the liquid crystal indicator of the present invention,, preferably control the particularly structure of the direction of orientation of liquid crystal when electric field applies of vertical alignment mode because of having the orientation limitations structure.Under the situation that adopts vertical alignment mode, generally be to use negative type liquid crystal; Because the relative real estate of liquid crystal molecule stands vertically under initial orientation state; Topple over by applying electric field; The toppling direction of liquid crystal molecule does not produce the confusion that is orientated if therefore do not take measures just can not control, and display characteristic is reduced.Therefore, when adopting vertical alignment mode, the control of the direction of orientation of the liquid crystal molecule when electric field applies is very important factor.
Therefore, in the liquid crystal indicator of the present invention, because of the clamping face at liquid crystal layer forms the orientation control structure; Can adjust or control the toppling direction of liquid crystal molecule; Can not produce the confusion of orientation, it is bad to suppress uneven demonstrations such as after image or stain shape, realizes wideization at visual angle more.
In addition; In the liquid crystal indicator of the present invention; The orientation limitations structure just only is not set, because of having the structure that on the corresponding position of this orientation display structure, forms photomask, even nearby produce birefringence by the inclination of liquid crystal molecule in the orientation limitations structure; Also can suppress light leak, prevent that contrast from reducing.Thereby, can realize the demonstration of high-contrast.
In addition, particularly be preferably at the position of corresponding jut formation photomask in the orientation limitations structure.Near near the liquid crystal molecules tilt than slit portion of jut is big, and the birefringence effect is bigger, and light leak is many.Thus, only form photomask, can suppress light leak effectively in the corresponding position of jut.
As the concrete structure of orientation limitations structure, be preferably the electrode opening portion that cuts by the dielectric thrust that on said electrode, forms or with the part of electrode or constitute by its two side.
When particularly the orientation limitations structure is the dielectric projection; Even because when black the demonstration the relative real estate tilted alignment of dielectric overshooting shape liquid crystal molecule; Being easy to generate the contrast that is caused by light leak reduces; The reason photomask can the good demonstration of degree of comparing effectively with said light leak blocking among the present invention.
In addition, in said liquid crystal indicator, in said a pair of substrate, only on a substrate, form said photomask.
Thus, can obtain the effect same with above-mentioned liquid crystal indicator, and compare with the structure that photomask is set respectively on a pair of substrate, cost is lower.
In addition, in said liquid crystal indicator, it is characterized in that said photomask and said orientation limitations structure form on same substrate.
Thus, can obtain the effect same, and photomask is cooperated with orientation limitations locations of structures precision highland with said liquid crystal indicator.
Forming on the same substrate under the situation of photomask and orientation limitations structure, corresponding for the position that makes both, can pass through formation accurately such as photoetching technique.Thus, when on a pair of substrate, forming photomask and orientation limitations structure respectively, containment member need be fitted a pair of substrate mutually through the sealing member after on a substrate, forming.At this, need the position of photomask with the orientation limitations structure be cooperated accurately, the position match ratio is difficulty.
Thus, through formation photomask and orientation limitations structure on same substrate, the applying error of the substrate of can worrying, and make photomask corresponding accurately with the position of orientation limitations structure.
In addition, consider the position quality of fit with respect to the orientation limitations structure, it is big slightly that the comparable orientation control structure of the planar dimension of photomask forms; Structure thus; Can improve both position quality of fits, the planar dimension of photomask is diminished, can improve aperture ratio of pixels.The demonstration that can obtain becoming clear thus.
In the liquid crystal indicator of the present invention; Any one of said a pair of substrate all is the device substrate of the signal routing that has electrode, the on-off element that is connected with this electrode, be connected with this on-off element; Said photomask is arranged on the said device substrate, and the constituent material of said on-off element or signal routing is the structure that is formed by same constituent material.
By such structure, in the formation operation of on-off element, because of can forming said light-shielding structure simultaneously, compare the raising that the load of increasing step not can realize showing contrast again with existing.
In addition; As the manufacturing approach under this situation; Comprise: the element of the signal routing that on a said substrate, form electrode, the on-off element that is connected with this electrode, is connected with this on-off element forms operation; On another substrate, form the operation of electrode at least; The operation of the orientation limitations structure of the state of orientation of controlling said liquid crystal is set on any one electrode of said a pair of substrate, in the operation that said element forms, under the state that said a pair of substrate subtend disposes, will forms simultaneously with the component parts of the stacked photomask in said orientation limitations structural plan and said on-off element or signal routing.
According to this manufacturing approach, in the formation operation of said photomask, form with the component parts of on-off element at said on-off element, can make the not liquid crystal indicator of increasing step load high-contrast thus.
Liquid crystal indicator of the present invention, in the said a pair of substrate any one has said photomask, and has the color filter of arranging a plurality of painted formations, and said photomask can be by forming with said painted the light-blocking member identical materials of zoning.As the structure adopting; Said photomask by with said color filter in the same operation of light-blocking member that comprises form, even therefore in possessing the structure of color filter, also can realize accessing the liquid crystal indicator that the colour of increasing step load high-contrast not shows.
In addition, in the manufacturing approach in this case, have: the color filter that on a said substrate, forms color filter forms operation, and this color filter has a plurality of painted portion by light-blocking member plane earth zoning; On said color filter, form the operation of electrode; On another substrate, form the operation of electrode at least; The operation of the orientation control structure of the said liquid crystal aligning state of control is set on any one electrode of said a pair of substrate; Form in the operation at said color filter, under state, will form with said light-blocking member with the stacked light-shielding structure of said orientation control structure plane earth with said a pair of substrate subtend configuration.
By this manufacturing approach, form operation at said color filter, because form said light-shielding structure simultaneously, so can make the load that do not increase operation and the color liquid crystal display arrangement of high-contrast with the light-blocking member that constitutes color filter.
In addition, in said liquid crystal indicator, the said photomask that in said a pair of substrate, forms on the substrate of the said liquid crystal layer side of light incident is processed by the metal with light reflective.
Thus, photomask not only has the function that can interdict near the light leak of orientation limitations structure, also has the function that makes the light reflection concurrently, and the light former state of incident photomask is reflected, and returns backlight, utilizes as emergent light again.That is, the utilization ratio of light can improve, and can improve briliancy.
In the liquid crystal indicator of the present invention; Be provided with the transmission viewing area of in a some zone, carrying out the transmission demonstration and reflect the reflective display region territory that shows, the liquid crystal bed thickness in above-mentioned two zones can form by the liquid crystal bed thickness adjustment layer of the regional interior setting of this point inequality mutually.
Be that the present invention is also applicable to the transflective liquid crystal display device of many gaps mode.Structure thus; Can obtain reflecting the good demonstration in two aspects of demonstration and transmission demonstration by many gaps mode; And can prevent to cause the reduction of contrast effectively by said light-shielding structure by light leak, therefore can obtain the liquid crystal indicator that reflecting of high-contrast, wide viewing angle shows and transmission shows.
In the liquid crystal indicator of the present invention; Through said orientation limitations structure and said liquid crystal layer and the electrode of subtend, in a some zone of this liquid crystal indicator, have the plane and see roughly rounded, oval or polygonal a plurality of island and the connecting portion that connects them.
Structure thus through the distortion of the electric field in the end, limit at said each shape position, forms the plane and sees roughly radial liquid crystal region in each position when applying voltage, can be provided at the liquid crystal indicator that can access the demonstration of high-contrast in comprehensive.
In said structure, be preferably the central portion of seeing on said plane roughly rounded, oval or polygonal position and dispose said orientation limitations structure in addition.
By this structure; Liquid crystal molecule forms in a zone from the liquid crystal region that the central portion at said each shape position roughly is radial orientation; Can prevent the demonstration inequality of the bad stain shape that causes of orientation of vertical orientated liquid crystal, the demonstration of the high contrast that can obtain the wide viewing angle scope can be provided.
Electronic equipment of the present invention possesses formerly described liquid crystal indicator is arranged.
At this,, can give an example the signal conditioning package of mobile phone, personal digital assistant device, table, word processor, PC etc. etc. as electronic equipment.
In addition, according to the present invention, because have the display part of the liquid crystal indicator that application formerly records and narrates, so the electronic equipment with display part that the visual angle is wide, display characteristic is good can be provided.
Description of drawings
Fig. 1 is the equivalent circuit diagram of the liquid crystal indicator in the first embodiment of the invention.
Fig. 2 is the planimetric map of the structure in a some zone of the same liquid crystal indicator of expression.
Fig. 3 is the floor map and the diagrammatic cross-section in a some zone of the same liquid crystal indicator of expression.
Fig. 4 is the floor map and the diagrammatic cross-section in three some zones (pixel region) of the liquid crystal indicator of second embodiment.
Fig. 5 is the regional floor map and the diagrammatic cross-section of a point of the liquid crystal indicator of the 3rd embodiment.
Fig. 6 is floor map and the diagrammatic cross-section of expression as a some zone of the liquid crystal indicator of the Transflective of the variation of the 3rd embodiment.
Fig. 7 is floor map and the diagrammatic cross-section of expression as a some zone of the reflection-type liquid-crystal display device of the variation of the 3rd embodiment.
Fig. 8 is the floor map and the diagrammatic cross-section in a some zone of the liquid crystal indicator of expression the 4th embodiment.
Fig. 9 is the floor map and the diagrammatic cross-section in a some zone of the liquid crystal indicator of expression the 5th embodiment.
Figure 10 is the plane and the diagrammatic cross-section in a some zone of the liquid crystal indicator of expression the 6th embodiment.
Figure 11 is the stereographic map of an example of expression electronic equipment of the present invention.
Symbol description: 9,79 common electrode counter electrodes (electrode); 10 infrabasal plates (substrate); 15 backlights (light structures); 25 upper substrates (substrate); 28 juts (orientation limitations structure); 73～75,83～85 dielectric projections (orientation limitations structure); 29 slit portions (orientation limitations structure); 31 pixel electrodes (electrode); 31a～31c, the island of 79a～79c pixel electrode; 33a～33c, 88a～88c light shielding part; BM, BM` deceive matrix (photomask); 39 connecting portions; 40TFD element (on-off element); 50 liquid crystal layers; 76 liquid crystal bed thickness adjustment layer; 77～78 reflection horizon; 100,100`, 100A, 100B, 200,300,400 liquid crystal display parts; 1000 mobile phone body (electronic equipment); S1～S3 point zone; D point zone.
Embodiment
(first embodiment)
Below, with reference to figure first embodiment involved in the present invention is described.In addition, in each figure, each layer and each parts for reach in each figure can visual degree size, each layer is different with each ratio of each parts.
Below shown in liquid crystal indicator of the present invention be brilliant diode (the Thin FilmDiode of applied film; Below brief note is for TFD) as the example of the liquid crystal indicator of the active array type of on-off element, particularly can carry out the transmissive liquid crystal display device that transmission shows.
Fig. 1 has represented the equivalent electrical circuit of the liquid crystal indicator 100 of this embodiment.This liquid crystal indicator 100 contains scan signal drive circuit 110 and data-signal driving circuit 120.In liquid crystal indicator 100, be provided with signal wire, that is, a plurality of sweep traces 13 and a plurality of data line 9 that intersects with this sweep trace 13, sweep trace 13 drives through scan signal drive circuit 110, and data line 9 drives through data-signal driving circuit 120.In addition at each pixel region 150, TFD element 40 is connected in series with liquid crystal display key element 160 (liquid crystal layer) between sweep trace 13 and data line 9.In addition, in Fig. 1, though TFD element 40 is connected with sweep trace 13 1 sides, liquid crystal display key element 160 is connected with data line 9 one sides, also can be designed to TFD element 40 in contrast and be connected with sweep trace 13 sides with data line 9 sides, liquid crystal display key element 160.
The planar structure (dot structure) of the electrode that has in the liquid crystal indicator 100 of this embodiment is described according to Fig. 2.As shown in Figure 2; In the liquid crystal indicator 100 of this embodiment; The pixel electrode 31 that the plane that is connected with sweep trace 13 through TFD element 40 is seen as rectangle is configured to matrix shape, is arranged to rectangular (band shape) shape with the common electrode 9 of this pixel electrode 31 subtend on the paper vertical direction.Common electrode 9 is made up of data line and has the band shape that intersects with sweep trace 13.In this embodiment, each pixel electrode 31 formed each zone is a some zone, in the each point zone of rectangular configuration, has TFD element 40, and this each some zone can show.
Next, the structure of major part of the liquid crystal indicator 100 of this embodiment is described according to Fig. 3.
Fig. 3 (a) is the planar structure synoptic diagram of the dot structure, particularly remarked pixel electrode 31 of expression liquid crystal indicator 100, and Fig. 3 (b) is the A-A ' diagrammatic cross-section of presentation graphs 3 (a).
In addition, Fig. 3 (b) is the figure of expression as the section of the red colored layer 22R of the representative of dyed layer 22, and the 22B of other dyed layer, the cross-section structure of 22G except the color difference of dyed layer, have same structure.
The liquid crystal indicator 100 of this embodiment, as shown in Figure 2 have a zone, and this some zone constitutes to possess in the regional inboard that data line 9 and sweep trace 13 grades surround has pixel electrode 31.In this some zone, shown in Fig. 3 (a), corresponding some zone is provided with a dyed layer in 3 primary colors, and 3 some zones (D1, D2, D3) form the pixel that contains each dyed layer 22B (blueness), 22G (green), 22R (redness).In addition, in each point zone (D1, D2, D3), the jut 28 and slit portion 29 that are equivalent to orientation adjustment structure of the present invention are set.In addition, it is the symmetrical figure of axle that jut 28 has with the centre line C L with slit portion 29, configuration adjacent to each other.Jut 28 and slit portion 29 bearing of trends become miter angle with centre line C L.Thus, can the toppling direction of liquid crystal molecule be controlled to the axis of homology of polarization plates when on liquid crystal layer 50, applying voltage and become miter angle.
In addition, shown three some zones of adjacency among Fig. 3 (a), in the each point zone, be provided with above-mentioned TFD element 40 respectively, in each some zone, all can apply voltage liquid crystal display key element 160.
On the other hand; Shown in Fig. 3 (b), the liquid crystal indicator 100 of this embodiment, upper substrate 25 and and the infrabasal plate 10 of its subtend configuration between clamping initial orientation state be vertical orientated liquid crystal; That is, dielectric anisotropy is the liquid crystal layer 50 of negative liquid crystal material formation.
The structure of infrabasal plate 10 be the substrate body 10A that constitutes with translucent materials such as quartz, glass as main body, various laminated film laminations form.
Color filter 22 (red colored layer 22R among Fig. 3 (b)) is set among this substrate body 10A and face upper substrate 25 subtends one side.
In addition, form on the same surface of substrate body 10A with color filter 22 in abutting connection with, black matrix (photomask) BM that constitutes by the planar graph of regulation.In addition, black matrix B M is arranged to round the edge of chromatograph 22R shown in Fig. 3 (a), is formed the border of some region D 1, D2, D3 by this black matrix B M.
In addition; Above color filter 22 and black matrix B M, tin indium oxide (Indium TinOxide is set; Below, note by abridging be ITO) etc. the rectangular pixel electrode 31 that constitutes of nesa coating, and the slit portion 29 as the orientation limitations structure is set on this pixel electrode 31.In addition, pixel electrode 31 is as shown in Figure 2, is connected with sweep trace 13 through TFD element 40, and correspondence is supplied to the voltage of sweep trace 13 and applies voltage to liquid crystal layer 50.In addition, alignment films is set and covers the top of pixel electrode 31 and the stepped portion that slit portion 29 is provided with.
Alignment films is made up of the material of polyimide etc., as the vertical alignment layer that liquid crystal molecule vertically is orientated with respect to face, and the orientation process of not implementing to rub etc.Thus; Need use do not implement friction treatment and to carry out in the liquid crystal indicator of vertical orientated liquid crystal (liquid crystal molecule) of division alignment electrode opening or electrode with negative dielectric anisotropy on dielectric etc. partly be arranged in the pixel, thereby make the pixel internal electric field suitably be out of shape the toppling direction of controlling liquid crystal molecule.Control inadequate the time at liquid crystal aligning, keep the zone of size to a certain degree and topple over to direction at random at the inner face of liquid crystal molecule.The different zone of part generation viewing angle characteristic in the face in the viewing area under this kind state, uneven problem appears showing in the result.Therefore, the liquid crystal molecule of orientation limitations liquid crystal layer 50, promptly be provided with slit portion 29 as the orientation texture that is controlled at the toppling direction of liquid crystal molecule vertical orientated in the original state when between electrode, applying voltage, after state jut 28.
Next, in upper substrate 25, have the substrate body 25A that constitutes with translucent materials such as quartz, glass and be the main body, the structure that various tunic laminations form.Form common electrode 9 that the transparency electrode by ITO etc. constitutes among this substrate body 25A and faces infrabasal plate 10 subtends, as the jut 28 of orientation limitations structure, the vertical alignment layer (not shown) same that polyimide etc. constitute with infrabasal plate 10.Common electrode 9 is formed among Fig. 3 (a) band shape of extending along the above-below direction of paper, is formed in the common electrode in each some zone that the some zone (D1, D2, D3) in this paper forms side by side.The resin material that jut 28 is made up of the organic membrane of acrylic resin etc. and forming, the vertical direction from the surface of upper substrate 25 along real estate forms liquid crystal layer 50 highlightedly.
Lateral surface (with 50 opposite face sides of clamping liquid crystal layer) at infrabasal plate 10 forms polarization plates 19; Lateral surface at upper substrate 25 forms polarization plates 17; This polarization plates 17,19 has the structure of the linear polarization transmission that only makes the polarizing axis with prescribed direction, and cross Nicols formula ground is provided with.In addition, the backlight 15 that transmission shows the light source of usefulness is set on the outside of the polarization plates 19 that forms on the infrabasal plate 10.
Next the characteristic of liquid crystal indicator 100 of the present invention is described.
Shown in Fig. 3 (b), black matrix B M with from the position corresponding (figure symbol *) of upper substrate 25 to the outstanding jut 28 of liquid crystal layer 50, and be arranged on pixel electrode 31 on the slit portion 29 corresponding positions of setting.That is, shown in Fig. 3 (a), see the position of jut 28 and slit portion 29 and the position consistency of black matrix B M so that overlapping on the plane.In addition, black matrix B M is made up of the high metal material of light reflectives such as aluminium, silver, is not only to interdict light, is reflected and penetrates at infrabasal plate 10 from the light of backlight 15 incidents.In addition, the width of black matrix B M is preferably and compares big or identical with the width of jut 28, slit portion 29.
Therefore as stated, in the liquid crystal indicator 100, have jut 28, slit portion 29, constitute to control and especially on vertical orientated liquid crystal, apply the electric field time control and produce good structure to direction as the orientation limitations structure.Though the general negative type liquid crystal that uses when adopting vertical alignment mode; Liquid crystal molecule vertically erects with respect to real estate under the state of initial orientation, topples over by applying electric field, like the toppling direction of the liquid crystal molecule of not taking measures then can not control; Can produce the confusion of orientation, display characteristic is reduced.Therefore, when adopting vertical alignment mode, the direction of orientation of the liquid crystal molecule when control applies electric field is very important factor.
Therefore in the liquid crystal indicator 100; Because of on the clamping face of liquid crystal layer, forming jut 28, slit portion 29,, be difficult to produce orientation disorder so can adjust and even control the toppling direction of liquid crystal molecule; Can suppress the unequal display defect of after image or point-like, make the visual angle more wide.
In addition; Because jut 28, slit portion 29 also not merely are set in above-mentioned liquid crystal indicator 100; Also has the structure that on the position corresponding, forms black matrix B M with this jut 28 and slit portion 29; Even near jut 28, produce birefringence by the inclination of liquid crystal molecule, black matrix B M also can suppress light leak, prevents the reduction of contrast.In addition, through producing edge effect near the portion 29 in the slit, even liquid crystal molecule only tilts a bit, photomask also can suppress light leak, prevents that contrast from reducing.Thereby, can carry out the demonstration of high contrast.
In addition, the width of black matrix B M is wideer than the width of jut 28 and slit portion 29, can suppress light leak more thus, therefore promotes to improve the effect of contrast more.
In addition, in the above-mentioned liquid crystal indicator 100, the metal that reason has light reflective forms black matrix B M, therefore should not only have the function of shading by black matrix B M, also has function of reflecting concurrently.Therefore, be reflected, get back to backlight 15 and utilize again as emergent light from the light former state of the black matrix B M of backlight 15 incidents.Thus, brightness is reduced.That is, be mapped to upper substrate 25 sides, can improve the utilization factor again of light, briliancy is improved by the light of deceiving the matrix B M reflection.
In addition, in this embodiment, can adopt corresponding respectively jut 28 that the structure of black matrix B M is set with slit portion 29, also can adopt only corresponding jut 28 that the structure of black matrix B M is set.
Thus, in the orientation limitations structure, particularly jut 29 near, bigger than near the inclination of the liquid crystal molecule the slit portion 29, the influence of birefringence is bigger, therefore has the many characteristics of light leak.As a result, only on the position of corresponding jut 28, form black matrix B M, just can obtain the effect of above-mentioned record.
In addition, in this embodiment,, be not limited thereto though adopt the structure that color filter 22 is arranged on infrabasal plate 10 sides.If corresponding jut 28 is provided with black matrix B M with slit portion 29, also can be employed in the structure that upper substrate 25 sides are provided with color filter.
(second embodiment)
With reference to figure explanation second embodiment involved in the present invention.In each figure, reach the size of the degree of on drawing, can recognizing because of making each layer and each parts, each layer is different with each scale of components.Identical with above-mentioned first embodiment in addition structure adopts identical symbolic simplification explanation.
This embodiment and the first embodiment difference are described below.In the first embodiment, black matrix B M is set on infrabasal plate 10,, black matrix B M is set also on upper substrate 25 in this embodiment with respect to this.In addition, in this embodiment, resin molding 26 is set on upper substrate 25.
The dot structure of the liquid crystal indicator 100 ' in this embodiment is described with reference to Fig. 4 in addition.Fig. 4 (a) is the synoptic diagram of the planar structure of remarked pixel electrode 31, and Fig. 4 (b) is the synoptic diagram of the major part of the profile construction in the presentation graphs 4 (a).
Because of Fig. 4 (a) is same figure with Fig. 3 (a), economize roughly to its explanation.
Shown in Fig. 4 (b), infrabasal plate 10 is provided with color filter 22, black matrix B M, pixel electrode 31, slit portion 29, polarization plates 19, in addition, forms with the only corresponding slit of the different black matrix B M of the structure portion 29 of first embodiment.
Black matrix B M ' and jut 28 are designed to locate accurately, are formed by the known graphic method of photoetching technique etc.
Black matrix B M ' is made up of resin material etc., is made up of the material that does not have light reflective.Structure thus is because of preventing can to improve display quality more from the outer reflection of light of substrate 25 side incidents.
As stated; Identical at above-mentioned first embodiment of liquid crystal indicator 100 ' neutralization; Clamping face at liquid crystal layer forms jut 28, slit portion 29, when the liquid crystal molecule original state is vertical orientated, can adjusts and even control the vergence direction of liquid crystal molecule thus, and it is chaotic to be difficult to produce orientation; The unequal demonstration that can suppress after image or stain shape is bad, can realize wide viewing angleization more.In addition,, then can suppress the inclination of liquid crystal molecule or the light leak that edge effect causes on the position of corresponding jut 28, slit portion 29, obtain the demonstration of high-contrast because of black matrix B M, BM ' are set.
In addition, in this embodiment, be formed on the same substrate (upper substrate 25), so needn't carry out operation accurately through containment member applying upper substrate 25 and infrabasal plate 10 because of deceiving matrix B M ' and jut 28.
Specifically, black matrix B M ' and jut 28 in upper substrate 25, through photoetching technique etc. accurately formation so that both positions are corresponding.With respect to this, when on a pair of upper and lower base plate 10,25, forming black matrix B M and jut 28 respectively, after forming containment member on the substrate, need a pair of substrate 10,25 be fitted mutually.The position that needs to deceive matrix B M and jut 28 cooperates accurately, and the position match ratio is difficulty.
Therefore, as this embodiment,, can consider the applying error of upper and lower base plate 10,25, can make the position of black matrix B M ' and jut 28 corresponding accurately through on same substrate, forming black matrix B M and jut 28.
(the 3rd embodiment)
Next, with reference to drawing explanation the 3rd embodiment involved in the present invention.In addition, among each figure, reach the size of the degree of can recognizing because of making each layer and each parts, each layer is different with each scale of components.
Below, the dot structure of the liquid crystal indicator 100 of the 3rd embodiment involved in the present invention is described according to Fig. 5.Fig. 5 is the figure in a some zone of expression liquid crystal indicator 100.The liquid crystal indicator 100 of this embodiment; Has the clamping liquid crystal layer and a pair of substrate of subtend; Fig. 5 (a) is the plane structure chart that constitutes a substrate (upper substrate 25) in this some zone; (b) be along the corresponding sectional structure chart in position of figure (a) A-A` line, (c) be the plane structure chart of another piece substrate (infrabasal plate 10).
In addition; Though not shown color filter in the some region D shown in Figure 5, have a color filter and in the occasion that constitutes, corresponding some region D is provided with 3 primary colors (R; G; B) a painted portion in the various colors in, and form pixel region, this pixel region will by 3 some region D output red light of corresponding a group painted (RGB), green light, and blue light mix output.
The liquid crystal indicator 100 of this embodiment; Shown in Fig. 5 (b); Between the upper substrate 25 (device substrate) that infrabasal plate 10 reaches and its subtend disposes, the clamping initial orientation state is vertical orientated state, dielectric anisotropy constitutes for the liquid crystal layer 50 that negative liquid crystal material constitutes.
Though economize roughly in the diagram, on the intersection point part of 13a of wiring portion shown in Fig. 5 (a) and signal wire 13, TFD element 40 be set.That is, in this embodiment, sweep trace 13 is for example formed by tantalum; Its surface can form the dielectric film of tantalum pentoxide; The hook-shaped 13a of wiring portion is for example formed by chromium, and if dispose across through above-mentioned dielectric film and sweep trace, can on this intersection point part, form TFD element 40.
From the cross-section structure shown in Fig. 5 (b), on the substrate body 10A of the light transmission of glass, quartz etc., form the wiring 13a of portion and light shielding part 33a～33c, form the interlayer dielectric 71 of monox for example or resin material formation in order to cover them.On interlayer dielectric 71, form the pixel electrode 31 that for example is made up of ITO film (indium tin oxide), through connecting the contact hole of interlayer dielectric 71 arrival light shielding part 33c, light shielding part 33c (being TFD element 40) is electrically connected with pixel electrode 31.In addition on pixel electrode 31, though diagram is economized roughly, be provided with the vertical alignment layer that constitutes by polyimide film etc., playing the initial orientation state of keeping liquid crystal layer 50 is the effect of plumbness.This alignment films is not implemented the orientation process of friction treatment etc.
Usually; Because of having the liquid crystal indicator of three-color filter, the aspect ratio in a some zone is about 3: 1, as this embodiment, in a some region D, forms 3 son point region S 1 are set; S2; The structure of S3, what can make a son point zone is shaped as circular, regular polygon roughly, can make the symmetry at visual angle good.Said son point region S 1, S2, S3 ( island 31a, 31b, shape 31c), though in Fig. 5 for the bight rounded roughly be foursquare shape, be not limited to this, for example circular, oval, also can be the polygon-shaped of other.In addition, said island 31a～31c, in other words, and promptly so-called periphery in a region D, formation cuts the structure in the electrode slit behind the pixel electrode.
The 13a of wiring portion that extends to pixel electrode 31 side hook shape ground from sweep trace 13 extends to the central portion of island 31c, is formed the light shielding part 33c of the enlarged of toroidal by this part.In addition, the contact hole 72 that is provided with through perforation interlayer dielectric 71 is electrically connected with pixel electrode 31.In addition, the light shielding part 33a of other shown in Fig. 5 (a), 33b are respectively in the central portion of son point region S 1 (island 31a), and the central portion configuration of son point region S 2 (island 31b). Light shielding part 33a, 33b form with identical material on layer with the above-mentioned wiring 13a of portion.
On the other hand; Infrabasal plate 10 is the main body with the substrate body 10A of the translucent material formation of quartz, glass etc.; On the inner face side of substrate body 10A, form the counter electrode 9 that the light transmission conductive material by ITO etc. constitutes, the outstanding dielectric projection (orientation limitations structure) 73,74,75 that constitutes by insulative resin material etc. that is provided with on counter electrode 9.Not shown in addition, for covering the vertical alignment layer of counter electrode 9 and dielectric projection 73～75 formation polyimide etc.In addition, in fact form at the object electrode 9 shown in Fig. 5 (c) and to be banded along the paper above-below direction and to form, play among (a) figure the effect of the common electrode on a plurality of somes zone arranged side by side on the above-below direction.
The orientation control structure of the direction of orientation when dielectric projection 73～75 forms the liquid crystal molecule that is controlled at the liquid crystal layer 50 of vertical alignment mode and applies voltage; Being spaced on counter electrode 9 with regulation; When panel is seen on the plane, be configured in upper substrate 25 on light shielding part 33a～33c plane position overlapped of forming.
Go up polarizer 18 at the exterior side of infrabasal plate 10 (side opposite) and sequentially dispose from substrate body 10A one side, sequentially dispose from substrate body 25A side in the exterior side polarizer 16 and the polarization plates 17 of upper substrate 25 with polarization plates 16 with liquid crystal layer 50.In addition, in the arranged outside of infrabasal plate 10 show backlight (lighting device) 15 as transmission with light source.
In the liquid crystal indicator 100 of this embodiment; In each son point region S 1; S2; Be provided with the dielectric projection 73～75 as the orientation limitations structure on the inner face of the infrabasal plate 10 that the central portion of S3 is faced, the surperficial liquid crystal molecules tilt in dielectric projection 73～75 is orientated (the dielectric protrusion surface is vertical orientated relatively) thus.Be that the center liquid crystal molecule is radial orientation with the dielectric projection among when applying voltage each height point region S 1～S3 thus.In addition, in upside substrate 25 sides, the distortion of the electric field in island 33a～end, 33c limit, liquid crystal molecule and their end limit portion are vertical orientated.In addition, by its orientation limitations power, the central portion of putting region S 1～S3 from each son makes liquid crystal molecule be the general radial orientation, can obtain the demonstration of omnibearing high-contrast.
In addition; Near dielectric projection 73～75; Produce the distortion of the electric field that the difference of the dielectric constant of liquid crystal and dielectric projection when applying voltage causes, the orientation limitations power that is caused by the distortion of electric field makes liquid crystal molecule be radial orientation from dielectric projection center.
In addition in this embodiment, light shielding part 33a～33c is set being place, lap position, plane, prevents the light leak in the central portion of each island 33a～33c thus, can realize the raising of contrast thus more with above-mentioned dielectric projection 73～75.That is, because of the relative real estate of liquid crystal molecule is the vergence direction orientation, is easy to generate polarization state of transmitted light and spills to the other field skew on the surface of dielectric projection 73～75, said light leak is through light shielding part 33a～33c blocking.
Particularly in this embodiment, because of light shielding part 33a～33c with forms with same operation from the wiring portion that TFD element 40 extends out, can not improve contrast so have the increase of the complicated and operation of manufacturing process.In addition, even the height increase of dielectric projection 73～75 does not influence contrast yet, therefore improve the response of liquid crystal through the height that increases the dielectric projection.
In addition, light shielding part 33a～33c is because of be made up of chromium with wiring portion equally as previously mentioned, even from substrate body 25A side, outer light is injected to light shielding part 33a～33c, and above-mentioned chromium film is low reflexive metal film, and the visuality of liquid crystal indicator is reduced.
(variation of the 3rd embodiment)
How the explanation liquid crystal indicator 100 as transmissive liquid crystal display device in the above-described embodiment constitutes below, and liquid crystal indicator of the present invention constitutes Fig. 6 or Transflective or reflection-type liquid-crystal display device shown in Figure 7.
" transflective liquid crystal display device "
The embodiment of transflective liquid crystal display device at first is described with reference to Fig. 6.In key element shown in Figure 6, pay prosign about the shared inscape of the liquid crystal indicator 100 of Fig. 1 to Fig. 5 and economize roughly to its explanation.In addition, Fig. 6 (a)～(c) respectively with embodiment formerly in Fig. 5 (a)～(c) suitable.
On the counter electrode 9; Be provided with the dielectric projection 73～75 of the orientation limitations structure that constitutes vertical orientated liquid crystal; This dielectric projection and liquid crystal indicator shown in Figure 5 are same, are arranged on the central portion subtend position with each island 31a～31c of pixel electrode 31.Therefore among the liquid crystal indicator 100A; With dielectric projection 73～75 plane position overlapped on dispose light shielding part 33a～33c respectively; Prevent that the light leak that is caused by dielectric projection 73～75 from penetrating to observer (outside of upper substrate 25) side, show and the reflection demonstration with the transmission that obtains high-contrast.
The transmission viewing area of the ladder difference that formation is caused by above-mentioned liquid crystal bed thickness adjustment layer 76 and the borderline region in reflective display region territory form inclined plane part 76s shown in Fig. 6 (b); Inclined plane part 76S described in the liquid crystal indicator of this embodiment is with the connecting portion that is connected island 31b and island 31c 39 plane overlay configuration.Adopt this structure, the orientation confusion that can suppress the liquid crystal molecule that inclined plane part 76s causes involves in the son point region S 2 that constitutes main viewing area, the S3, obtains the demonstration of high-contrast.
In addition in said structure, reflection horizon 77 can form at the upside (liquid crystal layer side) of liquid crystal adjustment layer 76, and in the case, therefore display light transflective liquid crystal adjustment layer not had and can reduce display light decay and painted advantage during reflection showed.According to this structure, reflection horizon 77 is as the part utilization of counter electrode 9.
In addition, liquid crystal adjustment layer 76 also can be in upper substrate 25 side settings.Liquid crystal bed thickness adjustment layer 76 and reflection horizon 77 are arranged on son point region S 3 places of the conductive connection part with pixel electrode 31 and TFD element 40 in this embodiment in addition, and above-mentioned son point region S 1 that conductive connection part is not set or S2 place also can be provided with the liquid crystal bed thickness and adjust layers 76 and reflection horizon 77.
Though in this embodiment, enumerate the transflective liquid crystal display device that many gaps mode has been described; But also can be used for not being provided with the transflective liquid crystal display device of the structure of liquid crystal bed thickness adjustment layer 76 in the present invention, can be through preventing the be improved effect of contrast of light leak.
" reflection-type liquid-crystal display device "
The embodiment of reflection-type liquid-crystal display device is described with reference to Fig. 7.In the inscape shown in Figure 7, use prosign to economize roughly to its explanation with the common inscape of the liquid crystal indicator 100 of Fig. 1 to Fig. 5.Fig. 7 (a)～(c) is the suitable figure of Fig. 5 (a)～(c) with formerly embodiment in addition.
The liquid crystal indicator 100B of this embodiment shown in Figure 7 has clamping liquid crystal layer 50 and the upper substrate 25 of subtend configuration constitutes with infrabasal plate 10.The structure of upper substrate 25 is identical with liquid crystal indicator formerly 100, but the structure of infrabasal plate 10 is different.That is, be provided with the reflection horizon 78 that the metal film of the light reflective of aluminium, silver etc. constitutes on the medial surface of substrate body 10A, on reflection horizon 78, form counter electrode 9.The backlight of polarizer, polarization plates and the back side of panel of substrate body 10A lateral surface needn't be set in addition.
In having the liquid crystal indicator 100B of said structure; Because of the dielectric projection 73～75 of infrabasal plate 10 and the light shielding part 33a of upper substrate 25～33c difference plane overlay configuration; The contrast that can suppress due to the light leak that near the angular orientation of the liquid crystal molecule of dielectric projection 73～75 causes reduces, and the reflection that can obtain wide viewing angle, high-contrast shows.
(the 4th embodiment)
The 4th embodiment that explanation the present invention relates to reference to Fig. 8.The liquid crystal indicator of this embodiment and Fig. 1 are same to liquid crystal indicator 100 shown in Figure 5; Transmissive liquid crystal display device for vertical alignment mode; In key element shown in Figure 8, use identical symbol to economize roughly to its explanation with the liquid crystal indicator 100 identical inscapes of Fig. 1 to Fig. 5.In addition Fig. 8 (a)～(c) respectively with formerly embodiment in Fig. 5 (a)～(c) suitable.
Though economize roughly in the diagram, in the intersection point portion of sweep trace 13 and the 13a of wiring portion, form TFD element 40.The leading section of the 13a of wiring portion that extends from this TFD element 40 side direction diagram upside in addition is provided with the hole enlargement position, form with after the pixel electrode 31c that states conduct electricity the contact site 13c that is connected.Shown in Fig. 8 (b), form the interlayer dielectric 71 that covers sweep trace 13 and the 13a of wiring portion, on interlayer dielectric 71, form pixel electrode 31.Extend to form linking part 86 from a minor face (right edge end) of pixel electrode 31 to the right side of figure; At its leading section the 31d of expanding portion is set; Through connecting said interlayer dielectric 71 and arriving the connecting hole 81 of the contact site 13c of the 13a of wiring portion; Above-mentioned expanding 31d of portion and contact site 13c are electrically connected, and therefore, the 13a of wiring portion (TFD element 40) is electrically connected with pixel electrode 31.
On the other hand, infrabasal plate 10 possesses at the medial surface of light-transmitting substrate body 10A that the plane of arranging with predetermined distance is arranged is the light shielding part 88a～88c and the counter electrode 79 of circle shown in Fig. 8 (b) and Fig. 8 (c).Above-mentioned light shielding part 88a～88c graphically forms metal film with light-proofness or resin molding.
In addition, on the outside of upper substrate 25, from substrate body 25A side sequential laminating polarizer 16 and polarization plates 17, on the outside of infrabasal plate 10, sequential laminating polarizer 18 and polarization plates 19.In addition, disposed backlight 15 in the outside of following base stage 10 as lighting device.In addition,, also form the pixel electrode 31 of covering upper substrate 25 and the vertical alignment layer of dielectric projection 83～85, on the counter electrode 79 of infrabasal plate 10, form vertical alignment layer though economize roughly in the diagram.
Though not shown color filter among Fig. 8, liquid crystal indicator 200 can have the structure of color filter.Usually, color filter is not in device substrate (upper substrate 25) the side formation that forms through complicated procedures of forming but forms in infrabasal plate 10 sides.In this case, for example on substrate body 10A, arrange the painted portion that forms with pixel electrode 31 suitable planar dimensions, and between each painted through light-proofness parts (deceiving matrix) zoning.Black matrix is by black resin film, form a plurality of said painted overlapping resin moldings that form or metal film.
In addition, as stated, liquid crystal indicator 200 has under the situation of color filter; Light-blocking member on the substrate body 10A; That is, if above-mentioned black matrix and light shielding part 88a～88c be with the formation of same operation, then do not produce the height contrastization that the increase and can realizing in the complicated and man-hour of operation shows.
(the 5th embodiment)
With reference to Fig. 9 the 5th embodiment of the present invention is described.The liquid crystal indicator of this embodiment is the transmissive liquid crystal display device that has with the vertical alignment mode of the same basic structure of liquid crystal indicator shown in Figure 8 200.Therefore, in inscape shown in Figure 9, use prosign to economize roughly to its explanation with the liquid crystal indicator 200 common inscapes that Fig. 8 is put down in writing.In addition Fig. 9 (a)～(c) be respectively with previous embodiment in the suitable figure of Fig. 8 (a)～(c).
From the cross section structure shown in Fig. 9 (b), on the substrate body 25A of light transmission, form the wiring 13a of portion, light shielding part 33a～33c etc., form pixel electrode 31 through the interlayer dielectric 71 that covers them.In addition, on pixel electrode 31, form dielectric projection 83～85.
The liquid crystal indicator 300 of this embodiment; Any one of the light shielding part 88a～88c of the light leak that is caused by the angular orientation of the liquid crystal molecule on these dielectric projection 83～85 surfaces as the dielectric projection 83～85 of the orientation limitations structure of vertical orientated liquid crystal and blocking all is provided with on upper substrate 25; Therefore dielectric projection 83～85 can cooperate with light shielding part 88a～88c accurately, can interdict above-mentioned light leak more effectively.Owing to can obtain high positional precision, the planar dimension of comparing the light shielding part 88a～88c that forms with dielectric projection 83～85 of needn't considering to misplace can dwindle biglyyer in addition, and aperture ratio of pixels is high thus, can improve the demonstration briliancy.Above-mentioned in addition light shielding part 88a～88c can form with same operation with 13a of wiring portion or sweep trace 13.Can follow manufacture process complicated and man-hour increase and improve the demonstration contrast.
Therefore the liquid crystal indicator 300 of this embodiment, increasing step load and making, the liquid crystal indicator of demonstration that can obtain becoming clear, wide viewing angle, high-contrast.
(the 6th embodiment)
Next, with reference to Figure 10 the 4th embodiment of the present invention is described.The liquid crystal indicator of this embodiment; Identical with Fig. 1 to liquid crystal indicator 100 shown in Figure 5; Transmissive liquid crystal display device for vertical alignment mode; In inscape shown in Figure 8, use prosign to economize to the common inscape of liquid crystal indicator 100 shown in Figure 5 roughly to its explanation with Fig. 1.In addition Figure 10 (a)～(c) respectively with formerly embodiment in Fig. 5 (a)～(c) suitable.
On the one hand, infrabasal plate 10 shown in Figure 10 (c), have counter electrode 9, in the formation zone of this counter electrode 9 with the regulation spaced dielectric projection 73～75 and light shielding part 88a～88c.In cross-section structure, in the inner face side of light-transmitting substrate main body 10A, form light shielding part 88a～88c, cover these light shielding part landform in pairs to electrode 9, on counter electrode 9, form dielectric projection 73～75.Dielectric projection 73～75 have as the liquid crystal of control vertical alignment mode apply voltage the time the function of orientation limitations structure of state of orientation.
In addition, though economize in the diagram roughly, on the counter electrode 9 of the pixel electrode 31 upper and lower substrates 10 of upper substrate 25 and dielectric projection 73～75, form vertical alignment layer.In addition in the exterior side of upper substrate 25; From substrate body 25A side sequential lamination polarizer 16 and polarization plates 17; The exterior side of infrabasal plate 10 from substrate body 10A side sequential lamination polarizer 18 and polarization plates 19, is provided with backlight 15 in the outside of infrabasal plate 10 (rear side).
Have in the liquid crystal indicator 400 of this embodiment of said structure; Dielectric projection 73～75 and light shielding part 88a～88c are set on infrabasal plate 10; Therefore identical with formerly the 3rd embodiment, can carry out dielectric projection 73～75 and cooperate with the high-precision position of light shielding part 88a～88c, can interdict the light leak that causes by dielectric projection 73～75 effectively; Obtain the demonstration of high-contrast; Cooperate through high-precision position in addition, can make light shielding part 88a～88c path raising pixel aperture ratio, the demonstration that obtains becoming clear.
In addition; Light shielding part 88a～88c is arranged between pixel electrode 9 and the substrate body 10A in this embodiment; On infrabasal plate 10, has color filter and when constituting; Identical with the 2nd embodiment formerly, can with light shielding part 88a～88c with forms with same operation as the black matrix of the light-blocking member that is provided with on the color filter, can realize carrying out the not liquid crystal indicator of the colour demonstration of increasing step load high-contrast.
(electronic equipment)
Next, the object lesson of the electronic equipment of the liquid crystal indicator with above-mentioned embodiment of the present invention is described.
Figure 11 is the stereographic map of an example of demonstration mobile phone.Among Figure 11,1000 expression mobile phone body, the display part of above-mentioned liquid crystal indicator is used in 1001 expressions.In the display part of the electronic equipment of this kind mobile phone etc., use the liquid crystal indicator of above-mentioned embodiment, it is wide to realize having the high visual angle of contrast, the electronic equipment of the liquid crystal display part that display characteristic is good.
In addition, the present invention is not limited to the scope of above-mentioned embodiment, can in the scope that does not break away from aim of the present invention, carry out all changes.For example; Though showed in the active array type LCD that with TFD is on-off element in the above-mentioned embodiment and used the present invention; But except that using the active array type LCD of TFT as on-off element, also can be in use the present invention in the liquid crystal indicator of passive matrix etc.
Claims (1)
1. liquid crystal indicator, it is between a pair of substrate, and clamping comprises having the liquid crystal layer of dielectric anisotropy for negative liquid crystal, and it is a vertical alignment mode, it is characterized in that,
In the liquid crystal layer side of said a pair of substrate, be formed with the electrode that is used to drive liquid crystal respectively,
On the electrode of at least one therein side's substrate, be provided with the orientation control structure of the orientation of the said liquid crystal of control,
In said a pair of substrate, a side or the opposing party's substrate is a device substrate, and it has the on-off element and the signal routing that is connected in this on-off element that is connected in the electrode that is provided with on this substrate through contact hole,
Said contact hole and said orientation control structure plane overlay configuration, and,
Have and the stacked light-shielding structure of said contact hole and said orientation control structure plane.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003411844A JP2005173105A (en) | 2003-12-10 | 2003-12-10 | Liquid crystal display and electronic device |
| JP411844/2003 | 2003-12-10 | ||
| JP242076/2004 | 2004-08-23 | ||
| JP2004242076A JP2006058734A (en) | 2004-08-23 | 2004-08-23 | Liquid crystal display and electronic equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100866725A Division CN100388096C (en) | 2003-12-10 | 2004-12-10 | Liquid crystal display device, method of manufacturing liquid crystal display device, and electronic apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN101063784A CN101063784A (en) | 2007-10-31 |
| CN101063784B true CN101063784B (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101622990A Pending CN101149537A (en) | 2003-12-10 | 2004-12-10 | Liquid crystal display device |
| CN2007101091703A Active CN101063784B (en) | 2003-12-10 | 2004-12-10 | Liquid crystal display device |
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| CNA2007101622990A Pending CN101149537A (en) | 2003-12-10 | 2004-12-10 | Liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007041126A (en) * | 2005-08-01 | 2007-02-15 | Toshiba Matsushita Display Technology Co Ltd | Liquid crystal display device |
| JP2007178531A (en) * | 2005-12-27 | 2007-07-12 | Seiko Epson Corp | Color filter substrate and its manufacturing method, liquid crystal display device and its manufacturing method and electronic appliance |
| JP4179327B2 (en) | 2006-01-31 | 2008-11-12 | エプソンイメージングデバイス株式会社 | LCD panel |
| JP2007212659A (en) | 2006-02-08 | 2007-08-23 | Hitachi Displays Ltd | Liquid crystal display device |
| TWI334052B (en) | 2006-09-27 | 2010-12-01 | Au Optronics Corp | Pixel structure incorporating display and method for making the same |
| JP5203601B2 (en) * | 2006-12-08 | 2013-06-05 | シャープ株式会社 | Liquid crystal display device and manufacturing method thereof |
| JP5068827B2 (en) * | 2008-02-15 | 2012-11-07 | シャープ株式会社 | Liquid crystal display |
| TWI521337B (en) * | 2014-05-06 | 2016-02-11 | 巨擘科技股份有限公司 | Timepiece and power saving method thereof |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5850271A (en) * | 1994-11-04 | 1998-12-15 | Samsung Electronics Co., Ltd. | Color filter substrate for a liquid crystal display and a method for manufacturing the same |
| CN1211745A (en) * | 1997-06-12 | 1999-03-24 | 富士通株式会社 | Liquid crystal display device |
| US6522377B2 (en) * | 2000-10-27 | 2003-02-18 | Lg. Philips Lcd Co., Ltd. | Transflective color LCD having dummy patterns on color filter and method of manufacturing the same |
-
2003
- 2003-12-10 JP JP2003411844A patent/JP2005173105A/en not_active Withdrawn
-
2004
- 2004-12-10 CN CNA2007101622990A patent/CN101149537A/en active Pending
- 2004-12-10 CN CN2007101091703A patent/CN101063784B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5850271A (en) * | 1994-11-04 | 1998-12-15 | Samsung Electronics Co., Ltd. | Color filter substrate for a liquid crystal display and a method for manufacturing the same |
| CN1211745A (en) * | 1997-06-12 | 1999-03-24 | 富士通株式会社 | Liquid crystal display device |
| US6522377B2 (en) * | 2000-10-27 | 2003-02-18 | Lg. Philips Lcd Co., Ltd. | Transflective color LCD having dummy patterns on color filter and method of manufacturing the same |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-295192A 2003.10.15 |
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| CN101149537A (en) | 2008-03-26 |
| CN101063784A (en) | 2007-10-31 |
| JP2005173105A (en) | 2005-06-30 |
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