CN101135796A - Liquid crystal display device and electronic device - Google Patents

Abstract

A liquid crystal display device with a vertical alignment mode in which a high image quality and a wide viewing angle are secured includes a liquid crystal layer having an initial state of vertical alignment interposed between a pair of substrates opposite to each other. A plurality of alignment control structures including a dielectric protrusion protruded toward the liquid crystal layer from the inner surface of the substrate is provided in a dot area constituting one unit of display. When that the dielectric constant of the dielectric protrusion is epsilon<SUB>t1</SUB>, the dielectric constant of a major axis direction of liquid crystal molecules constituting the liquid crystal layer is epsilon<SUB>//</SUB>, and the dielectric constant of a minor axis direction thereof is epsilon<SUB>[bottom]</SUB>, the dielectric constants satisfy the expression epsilon<SUB>[bottom]</SUB>>epsilon<SUB>//</SUB>>epsilon<SUB>t1</SUB>.

Description

Liquid crystal indicator and electronic equipment

Technical field

The present invention relates to liquid crystal indicator and electronic equipment.

Background technology

In the last few years, the liquid crystal indicator that possesses vertical orientated liquid crystal mode practicability.In the liquid crystal indicator of this kind, must correctly be controlled at voltage toppling direction for the vertical orientated liquid crystal of substrate when applying, people have realized being provided with on electrode to carry out this orientation and have been controlled to be the technology (referring to patent documentation 1) of the orientation control structure that is made of slit (incised notch part) or dielectric projection of purpose.In addition, also carried out research (referring to non-patent literature 1) to the configuration condition of above-mentioned dielectric projection.

No. 2947350 communique of [patent documentation 1] special permission

[non-patent literature 1] A Super-High Image QuaLityMuLti-Domain VerticalAlignment LCD by New Rubbing-Less Technology, SID 1998 DIGEST41.1.

Shown in above-mentioned prior art, orientation control structure is set, and then correctly sets its configuration condition etc., be effective for the high image qualityization of the liquid crystal indicator of vertical alignment mode.But, the inventor further high image qualityization, wide visual angle with the liquid crystal indicator of vertical alignment mode are turned to and to learn after purpose is studied repeatedly, being provided with under the situation of dielectric projection, must possess the dielectric projection of suitable characteristic according to the characteristic setting of liquid crystal as above-mentioned orientation control structure.In other words, in the existing liquid crystal indicator of the orientation control of failing to carry out to carry out by means of the dielectric projection under the situation of described optimization vertical orientated liquid crystal, but exist the possibility that image quality is reduced.

Summary of the invention

The present invention will provide the means that address this problem, and purpose is to provide the liquid crystal indicator of the vertical alignment mode of having realized high image qualityization, wide visual angleization.

The present invention, in order to solve above-mentioned problem, be a kind ofly between a pair of substrate that has electrode on the subtend face, to seize the liquid crystal indicator that original state presents vertical orientated liquid crystal layer on both sides by the arms, it is characterized in that: in the some zone that constitutes 1 unit of display, on a side's of above-mentioned a pair of substrate substrate, on above-mentioned electrode, form to the side-prominent dielectric projection of coming out of above-mentioned liquid crystal layer one, with above-mentioned dielectric projection orientation control structure being set on position adjacent on the in-plane on subtend face one side of the opposing party's of above-mentioned a pair of substrate substrate, is ε at the dielectric coefficient of establishing above-mentioned dielectric projection _T1, the dielectric coefficient of long axis direction that constitutes the liquid crystal molecule of above-mentioned liquid crystal layer is ε _∥, the dielectric coefficient of short-axis direction is ε _⊥The time, have ε _⊥ε _∥ε _T1Relation.If adopt this formation, then in liquid crystal indicator with dielectric projection of controlling structure as the orientation of vertical orientated liquid crystal, under the situation of dielectric coefficient less than the dielectric coefficient of the long axis direction of liquid crystal molecule of dielectric projection, just can carry out the orientation control of the liquid crystal in the zone well, just can obtain the demonstration of wide visual angle, high briliancy.

In addition, the present invention, be a kind ofly between a pair of substrate that has electrode on the subtend face, to seize the liquid crystal indicator that original state presents vertical orientated liquid crystal layer on both sides by the arms, it is characterized in that: in the some zone that constitutes 1 unit of display, on a side's of above-mentioned a pair of substrate substrate, possesses the dielectric projection that highlights and form to above-mentioned liquid crystal layer from the above-mentioned electrode top of this substrate, with the orientation control structure that is adjacent to dispose with this dielectric projection, be ε at the dielectric coefficient of establishing above-mentioned dielectric projection _T1, the dielectric coefficient of establishing the long axis direction of the liquid crystal molecule that constitutes above-mentioned liquid crystal layer is ε _∥, the dielectric coefficient of short-axis direction is ε _⊥The time, have ε _T1ε _∥Relation.If adopt this formation, then in the liquid crystal indicator that possesses the dielectric projection of controlling structure as the orientation of vertical orientated liquid crystal, under the situation of dielectric coefficient greater than the dielectric coefficient of the long axis direction of liquid crystal molecule of dielectric projection, just can carry out the orientation control of the liquid crystal in the zone well, just can obtain the demonstration of wide visual angle, high briliancy.In addition, in this formation,,, can expect the raising of fabrication yield so the easiness of manufacturing increases owing to can be formed on the structure that orientation control structure is set on a side's only the substrate.

Therefore, if adopt each above-mentioned formation, then do in the liquid crystal indicator of orientation control structure of vertical orientated liquid crystal having the dielectric projection, movement in the time of just can correctly controlling voltage because of dielectric projection dielectric coefficient liquid crystal molecule inequality and apply, thereby the liquid crystal indicator of the demonstration that can obtain high briliancy can be provided.

In liquid crystal indicator of the present invention, can become and above-mentioned dielectric projection oriented adjacent control structure, be the structure of the edge part of the aperture slots that forms on the electrode that in above-mentioned some zone, is provided with or above-mentioned electrode.

In addition, in liquid crystal indicator of the present invention, also can have such structure: at the orientation control structure adjacent with above-mentioned dielectric projection is other dielectric projection, is ε at the dielectric coefficient of establishing this other dielectric projection _T2The time, for the dielectric coefficient ε of above-mentioned liquid crystal molecule _∥, have ε _∥ε _T2Relation.

In possessing the liquid crystal indicator of the present invention of previous structure, as the orientation control structure adjacent with the dielectric projection, can use the structure that carries out the orientation control of the liquid crystal molecule of voltage when applying by means of the oblique electric field that on the edge of electrode, produces, and adopt the way that the different thrust of dielectric coefficient is set in liquid crystal layer to make electric field distortion with any structure in the structure that is orientated control.

In liquid crystal indicator of the present invention, it is desirable to the orientation control structure adjacent with above-mentioned dielectric projection, have aperture slots that forms on the electrode that in above-mentioned some zone, is provided with and the dielectric coefficient ε that is provided with in the inboard of this aperture slots _T2Has ε _∥ε _T2The other dielectric projection of relation.If adopt this formation, owing to the orientation control structure that oblique electric field that produces by means of the periphery in aperture slots and the orientation control of being carried out liquid crystal molecule by the electric field distortion that the dielectric projection produces will be set, also can be orientated control well so leave the liquid crystal molecule of the position of distance from orientation control structure, be formed on the favourable structure in raising aspect of response speed or aperture opening ratio.

In addition, the present invention, a kind of liquid crystal indicator is provided, this is a kind ofly to seize the liquid crystal indicator that original state presents vertical orientated liquid crystal layer on both sides by the arms between a pair of substrate that has electrode on the subtend face, it is characterized in that: in the some zone that constitutes 1 unit of display, on a side's of above-mentioned a pair of substrate substrate, form in above-mentioned electrode top to side-prominent the 1st dielectric projection of coming out of above-mentioned liquid crystal layer one, on the opposing party's of above-mentioned a pair of substrate substrate, on above-mentioned electrode, forming the 2nd dielectric projection on the adjoining position on the in-plane with above-mentioned the 1st dielectric projection.At the dielectric coefficient of establishing above-mentioned the 1st dielectric projection is ε _T1, the dielectric coefficient of above-mentioned the 2nd dielectric projection is ε _T2, the dielectric coefficient of establishing the long axis direction of the liquid crystal molecule that constitutes above-mentioned liquid crystal layer is ε _∥, the dielectric coefficient of short-axis direction is ε _⊥The time, have ε _T1ε _∥And ε _T2ε _∥Relation.Usually, being provided with and constituting the available naturally identical material formation of dielectric projection of orientation control structure on a zone, still, also can be the structure that is orientated control by means of the dielectric projection that has different dielectric coefficients each other.Therefore, under the situation that is adjacent to be provided with dielectric projection, it is desirable to, the dielectric projection is set respectively on different substrates as this formation with so different dielectric coefficient.Adopt so structure, just can obtain the demonstration at high image quality, wide visual angle.

In liquid crystal indicator of the present invention, can constitute the structure that in above-mentioned some zone, is provided with the reflective display region territory of reflecting demonstration and carries out the transmission viewing area of transmission demonstration.If adopt this structure, can provide the liquid crystal indicator of the Transflective of the transmission/reflection demonstration that can carry out high image quality.

Secondly, the present invention also will provide and be characterised in that the electronic equipment that possesses previous said liquid crystal indicator of the present invention.If employing the present invention then can provide the electronic equipment of the display part with wide visual angle, high briliancy.

Description of drawings

The section of Fig. 1 illustrates the basic comprising of liquid crystal indicator of the present invention with constituting.

The section of Fig. 2 illustrates the basic comprising of liquid crystal indicator of the present invention with constituting.

Fig. 3 shows the analog result of example.

Fig. 4 shows the analog result of example.

Fig. 5 shows the analog result of example.

Fig. 6 shows the analog result of example.

Fig. 7 shows the analog result of example.

Fig. 8 shows the analog result of example.

Fig. 9 shows the analog result of example.

Figure 10 shows the analog result of example.

The key diagram of Figure 11 shows for example can use liquid crystal indicator of the present invention.

Figure 12 is the spatial structure of the liquid crystal indicator of configuration example.

The section pie graph of the liquid crystal indicator of the 1st configuration example of Figure 13.

Figure 14 is the plane pie graph of 1 pixel region of the liquid crystal indicator of the same configuration example.

Figure 15 is the section pie graph of the liquid crystal indicator of the 2nd configuration example.

Figure 16 is the plane pie graph of 1 pixel region of the liquid crystal indicator of the same configuration example.

The stravismus of Figure 17 illustrates an example of electronic equipment with constituting.

Embodiment

Below, the limit illustrates example of the present invention referring to the figure limit.In addition, following will referring to each figure in, for ease of with the aid of pictures, make the size of various piece or thickness all suitably different.The section pie graph of Fig. 1 and Fig. 2 shows the major part (part of basic comprising) of the liquid crystal indicator of example 1 of the present invention, example 2 respectively.

The liquid crystal indicator 100 of example 1 shown in Figure 1 possesses the structure of seizing the liquid crystal layer 50 that is made of for the liquid crystal of bearing dielectric anisotropy between the 1st substrate 25 of subtend configuration and the 2nd substrate 10 on both sides by the arms.Go up according to the 2nd electrode 9, dielectric projection 18 with the order that these the 2nd electrodes 9 and dielectric projection 18 cover the vertical alignment layer 23 that gets up in inner face one side (liquid crystal layer one side) of the 2nd substrate 10 and to form.On inner face one side of the 1st substrate 25, then the order according to the 1st electrode 31, vertical alignment layer 33 forms.In the some zone that constitutes 1 unit of display, the 1st electrode 31 is formed narrowlyer than the 2nd electrode 9, and plane earth disposes edge part (edge part incised notch part) 31a, the 31a of the 1st electrode 31 of diagram left and right directions (in-plane of Y direction/the 1st substrate 25) above the 2nd electrode 9.In other words, in 1 some zone, edge part 31a and the relation of the position between the edge part 31a (edge part 31a, the 31a of dielectric projection 18 and the 1st electrode 31 is configured to the not overlapping mutual differently relation of adjacency in plane) that dielectric projection 18 is disposed at the 1st electrode 31 that forms on the different substrates have been formed.

On the other hand, the liquid crystal indicator 200 of example 2 shown in Figure 2, though the liquid crystal indicator of basic comprising and example 1 is same.It is inequality in the 1st electrode 31 tops of the 1st substrate 25 dielectric projection 18 this point to be set.In other words, become the position relation (adjacent and alternatively dispose the position relation of edge part 31a, the 31a of dielectric projection 18 and the 1st electrode 31) of configuration dielectric projection 18 between the edge part 31a of the 1st electrode 31 that in 1 some zone, is forming on the same substrate and the edge part 31a.

In addition, so-called some zone constitutes the zone of 1 unit of display exactly, for example, is made of the counter electrode that forms on 1 pixel electrode that forms on a side the substrate and the substrate the opposing party of subtend with it in general.

On the basis of such formation, in these liquid crystal indicators 100,200, constitute the liquid crystal molecule 51 of liquid crystal layer 50, apply the state (nonselection mode of voltage for above-mentioned two electrodes 9,31 as yet, initial orientation state) under, following action: the orientation limitations power by vertical alignment layer 23,33 is orientated on for substrate 10,25 vertical direction, when giving when being applied with voltage (become and be selection mode) between two electrodes, just topples over towards the face direction of substrate 10,25.

In addition, liquid crystal indicator 100,200, the dielectric projection 18 of the orientation control structure of the direction of orientation of the liquid crystal molecule 51 when being used for controlling above-mentioned voltage and applying, simultaneously, even if also become the orientation that also can control liquid crystal molecule 51 by means of the distortion of the electric field that produces among the edge part that forms the electrode narrower (the edge part incised notch part) 31a for making than the electrode that on the substrate of subtend, is provided with.In addition, the liquid crystal indicator of these the 1st, the 2nd examples, the dielectric coefficient (ε of the dielectric projection 18 on the middle body substantially that is arranged on 1 some zone _T1) and the dielectric coefficient (ε of liquid crystal molecule 51 _∥, ε _⊥) between differ from one another in the relation, owing to the difference of this relation, the configuration relation between dielectric projection 18 and the adjacent orientation control structure ( edge part 31a, 31a) is also different.Here, the dielectric coefficient ε of liquid crystal molecule _∥, be the dielectric coefficient of the long axis direction (diagram directions X) of liquid crystal molecule, dielectric coefficient ε _⊥, be the dielectric coefficient of the short-axis direction (diagram Y direction) of liquid crystal molecule.Below, ε _∥, ε _⊥Be called long axis direction dielectric coefficient and short-axis direction dielectric coefficient respectively.

At first, in the liquid crystal indicator 100 of example shown in Figure 11, be set to be used for form the dielectric coefficient ε of the dielectric projection 18 of liquid crystal aligning control device _T1Dielectric coefficient ε than the long axis direction of liquid crystal molecule 51 _∥Little, that is, and the dielectric coefficient ε of dielectric projection 18 _T1Dielectric coefficient ε with liquid crystal molecule 51 _∥, ε _⊥, have ε _⊥ε _∥ε _T1Relation.With respect to this, in the liquid crystal indicator 200 of example shown in Figure 22, the dielectric coefficient ε of dielectric projection 18 _T1Then become and be long axis direction dielectric coefficient ε than liquid crystal molecule 51 _∥Bigger (ε _T1ε _∥).

In addition, above-mentioned two liquid crystal indicators, also different in the configuration of its dielectric projection 18.As mentioned above, liquid crystal indicator of the present invention, it is the liquid crystal indicator that the configuration relation between dielectric projection 18 and the orientation control structure (the edge part 31a of electrode) adjacent with this dielectric projection 18 is set suitably according to the relation between the dielectric coefficient of the dielectric coefficient of dielectric projection 18 and liquid crystal molecule 51, by means of this, just can obtain the good demonstration at high image quality and wide visual angle.

Below, referring to Fig. 3 to Figure 10, to the dielectric coefficient ε of dielectric projection 18 _T1Dielectric coefficient ε with liquid crystal molecule 51 _∥, ε _⊥Between the movement of the liquid crystal molecule that concerns correspondence and the effect of the liquid crystal indicator of this example describe.Fig. 3 shows the analog result of the movement of the asynchronous liquid crystal molecule of dielectric coefficient that calculates dielectric projection 18 to the section pie graph of Figure 10.

In Fig. 3 and Fig. 4, show the dielectric coefficient ε that establishes the dielectric projection in demonstration _T1Be 1.0, the dielectric coefficient ε of the long axis direction of liquid crystal molecule _∥Be 4.0, the dielectric coefficient ε of short-axis direction _⊥Be in the liquid crystal indicator of the major part (being taken as the part of basic comprising) in 1 some zone of 9.0, just be applied with the state (Fig. 3) of the liquid crystal behind the voltage and passed through the state (Fig. 4) of the liquid crystal behind the 100ms at 9,31 at two electrodes.

In addition, the results are shown in Fig. 3 in the simulation of Fig. 8 at handle, the formation of electrode and dielectric projection, as shown in the figure, become such formation: dielectric projection 18 is arranged on the middle body substantially of electrode 9 tops of the 2nd substrate 10, the 1st electrode 31 forms to such an extent that width is narrower than the 2nd electrode 9, and edge part 31a, the 31a of the 1st electrode 31 are configured in the top of the 2nd electrode 9.

In Fig. 5 and Fig. 6, show the dielectric coefficient ε that establishes the dielectric projection in demonstration _T1Be 3.5, the dielectric coefficient ε of the long axis direction of liquid crystal molecule _∥Be 4.0, the dielectric coefficient ε of short-axis direction _⊥Be in the liquid crystal indicator of the major part (being taken as the part of basic comprising) in 1 some zone of 9.0, just be applied with the state (Fig. 5) of the liquid crystal behind the voltage and passed through the state (Fig. 6) of the liquid crystal behind the 100ms at 9,31 at two electrodes.

In Fig. 7 and Fig. 8, show the dielectric coefficient ε that establishes the dielectric projection in demonstration _T1Be 5.0, the dielectric coefficient ε of the long axis direction of liquid crystal molecule _∥Be 4.0, the dielectric coefficient ε of short-axis direction _⊥Be in the liquid crystal indicator of the major part (being taken as the part of basic comprising) in 1 some zone of 9.0, just be applied with the state (Fig. 7) of the liquid crystal behind the voltage and passed through the state (Fig. 8) of the liquid crystal behind the 100ms at 9,31 at two electrodes.

As shown in these figures, has ε in dielectric projection 18 and liquid crystal molecule 51 _T1＜ε _∥Fig. 3 of relation under the condition of Fig. 6, liquid crystal molecule 51 from dielectric projection 18 towards both sides (electrode rim direction) topple over down, forming symmetrically with dielectric projection 18 is 2 liquid crystal territories on border.Below, the orientation control action of edge part 31a and dielectric projection 18 is described.

Under the situation of the means of the orientation of not controlling liquid crystal molecule, liquid crystal molecule is just toppled over randomly owing to voltage applies, in this case, in the border in the liquid crystal territory of different state of orientation, line of discontinuity (disclination) will occur and become the reason that after image or briliancy descend.In addition, because this disclination occurs on different positions owing to applying voltage, so the size in the liquid crystal territory in the some zone is just unstable, in addition, because the liquid crystal territory has different viewing angle characteristics respectively, so the result just becomes under situation about seeing from oblique direction, will be as the inhomogeneous appearance of rough dirt shape.So employing is provided with the way of the orientation control device of liquid crystal molecule, just can when applying, voltage make liquid crystal molecule on the direction of regulation, topple over orientation.

At first, with Fig. 3 and Fig. 4 the effect of dielectric projection 18 is described.Owing on the surface of the 2nd electrode 9 that contains dielectric projection 18, formed alignment films 23, thus as shown in Figure 3, when no-voltage applies with after just no-voltage applies liquid crystal molecule 51 just will be oriented to vertical for real estate.Here, after being applied with voltage for the 1st electrode 31 and the 2nd electrode 9, on liquid crystal layer 50, will form the electric field of representing with equipotential line 52, particularly at the periphery of dielectric projection 18, the distortion that will produce electric field owing to the different of the dielectric coefficient of dielectric projection 18 and liquid crystal molecule 51.In addition, after having produced such distortion, the result just becomes to for the vertical orientated liquid crystal molecule 51 of real estate, has the pre-tilt angle of predetermined angular for this electric field.Therefore, just can apply and make liquid crystal molecule 51 orientation limitations for toppling over to the diagram left and right directions of dielectric projection 18 outside (increasing the direction of contact angle) with the dip plane of dielectric projection 18 by means of voltage.In addition, the liquid crystal molecule of the neighboring area of dielectric projection 18 is also toppled over to same direction in the mode that dominoes is toppled over.

Secondly, the effect to the edge part 31a of electrode describes.Owing on edge part 31a, also form the alignment films 33 that it covering is got up, so the liquid crystal molecule 51 when no-voltage applies just is oriented to for real estate vertical.When being applied with voltage for the 1st electrode 31 and the 2nd electrode 9, just as available equipotential line 52 is represented, will produce oblique electric field here, at the periphery of electrode rim part 31a.Because when when this oblique electric field is seen, the result becomes the long axis direction of the liquid crystal molecule 51 when applying for no-voltage, is oriented to the inclination predetermined angular, has given pre-tilt angle so just become to being equal to the liquid crystal molecule.Therefore, just can apply and make liquid crystal molecule 51 orientation limitations for falling to the inclination of electrode middle body from edge part 31a by means of voltage.In addition, those are arranged in the liquid crystal molecule 51 of the inboard (electrode middle body side) of edge part 31a, and also the direction of orientation of the liquid crystal molecule of the mode that can topple over dominoes on the edge part 31a is toppled on same direction one by one.

By means of above effect, be subjected to the liquid crystal molecule 51 of the edge part 31a orientation limitations of above-mentioned dielectric projection 18 and electrode, will between dielectric projection 18 and a side's edge part 31a, topple over to same direction on the same ground, consequently, as Fig. 4 and shown in Figure 6, can form with dielectric projection 18 is the liquid crystal territory of symmetry substantially at center.Therefore, the liquid crystal indicator 100 of the example shown in Figure 1 that similarly constitutes to the condition of Fig. 6 with Fig. 3 can obtain the demonstration of wide visual angle, high briliancy.

With respect to this, Fig. 7 and condition shown in Figure 8, dielectric projection 18 and liquid crystal molecule 51 aspect its dielectric coefficient, have ε _T1ε _∥Relation, as shown in Figure 8, liquid crystal molecule 51, will be when voltage applies along the direction of the dip plane of dielectric projection 18 (direction towards the top, top of dielectric projection 18, the direction that contact angle with the dip plane of dielectric projection 18 is reduced) topples over, the liquid crystal molecule 51 of the periphery of dielectric projection 18 also falls towards 18 inclinations of dielectric projection.On the other hand, same to the condition of Fig. 6 with previous Fig. 3 at the part 31a place, edge of the 1st electrode 31, liquid crystal molecule 51 is toppled over towards the middle body ground of the 1st electrode 31.As mentioned above, the result that liquid crystal molecule 51 is toppled between dielectric projection 18 and edge part 31a in the opposite direction, intermediate location place between the edge part 31a of dielectric projection 18 and the 1st electrode 31, liquid crystal molecule 51 is not just toppled over, and has produced disclination.

As mentioned above, as the dielectric coefficient ε of dielectric projection 18 _T1Value to the dielectric coefficient ε of liquid crystal molecule 51 _∥Not not simultaneously, the result just becomes the movement difference of the liquid crystal molecule 51 when applying for voltage, from Fig. 3 to ε shown in Figure 6 _T1＜ε _∥Though condition under can in wide angular field of view, obtain the demonstration of high briliancy,, at the ε shown in Fig. 7,8 _T1ε _∥Condition under, display quality will reduce because of produced disclination in a zone.Why can produce the difference of the movement of liquid crystal molecule between above-mentioned each condition, this is because of the variform cause that makes the distortion of the electric field of generation in liquid crystal layer 50 owing to the difference of the dielectric coefficient between dielectric projection 18 and the liquid crystal.Promptly, this is because under the condition of Fig. 4 and Fig. 6, owing to above the figure of dielectric projection 18, produced distortion to the electric field of upside projection in the shape of the equipotential line shown in two figure 52, under condition shown in Figure 8, produced distortion in contrast to the electric field of downside projection, for this reason, the result just becomes the toppling direction difference for liquid crystal molecule 51.The liquid crystal territory that produces in liquid crystal layer 51 also becomes the cause for different liquid crystal territories.

As mentioned above, at Fig. 7 and condition (ε shown in Figure 8 _T1ε _∥) situation under, just can not obtain good demonstration.So, the inventor, even if the result who studies repeatedly under Fig. 7 and condition shown in Figure 8, also obtaining good demonstration and to the formation of liquid crystal indicator, find as long as the formation shown in the image pattern 2 is provided with dielectric projection 18 in the 1st substrate 25 1 sides with other orientation control structure (the edge part 31a of the 1st electrode 31) like that, even if at the dielectric coefficient ε that uses for liquid crystal molecule _∥Have under the situation than the dielectric projection 18 of higher dielectric coefficient, also can obtain good demonstration.

Fig. 9 and Figure 10 are the Simulation result of carrying out with the liquid crystal indicator same formation of liquid crystal indicator shown in Figure 2 200, dispose dielectric projection 18 in electrode 31 tops of the 1st substrate 25 with becoming.The dielectric coefficient ε of dielectric projection 18 _T1Be 5.0, the dielectric coefficient ε of the long axis direction of liquid crystal molecule 51 _∥Be 4.0, the dielectric coefficient ε of short-axis direction _⊥Be 9.0.

As shown in figure 10, if adopt formation shown in Figure 2, then just can be in liquid crystal layer 50 when voltage applies, be the liquid crystal territory of the symmetry at center with dielectric projection 18, even if at ε _T1ε _∥Condition under, also can form the liquid crystal indicator of the demonstration of wide visual angle and high briliancy.

In addition, the inventor is also to the dielectric coefficient ε of dielectric projection 18 _T1The response speed of the liquid crystal indicator under the different situations is studied.Consequently learn: at Fig. 3,4 condition (ε _T1Under the situation of liquid crystal indicator=1.0), with Fig. 5,6 condition (ε _T1=3.5) liquid crystal indicator ratio can be realized the raising of the response speed about 5ms on the medium tone zone.Just as more once the distribution of the equipotential line 52 of Fig. 4 and Fig. 6 will be understood, this is considered to result from the distortion of the electric field of dielectric projection 18, and is this side of Fig. 4 greatly, therefore, also big to the orientation limitations power of liquid crystal molecule 51.

In addition, in above-mentioned example, an example as the orientation control structure adjacent with dielectric projection 18, specifically, though be that situation with the edge part 31a of the 1st electrode 31 is the explanation that example is carried out, but, the aperture slots of the way of a part of incised notch of the 1st electrode 31 formation is arranged on the formation that replaces the edge part 31a of above-mentioned the 1st electrode 31 on the both sides (being positioned at the part on the end in some zone of the 1st electrode 31) of dielectric projection 18 also can obtains and above-mentioned same effect even if adopt.

In addition, under situation of the present invention,, also can use even if the orientation control structure adjacent with dielectric projection 18 is the formation of other dielectric projection (the 2nd dielectric projection).But, in this case, should be noted that the dielectric coefficient of this other dielectric projection (the 2nd dielectric projection).In other words, by previous described explanation as can be known, want to become the dielectric projection that possesses with the equal orientation control function of the edge part 31a of the 1st electrode 31 or aperture slots, the dielectric coefficient of the 2nd dielectric projection (is expressed as ε _T2) for the dielectric coefficient ε of the long axis direction of liquid crystal molecule 51 _∥Must have ε _T2＜ε _∥Relation.

On the other hand, at the dielectric coefficient ε of the 2nd dielectric projection _T2Dielectric coefficient ε for the long axis direction of liquid crystal molecule 1 _∥Has ε _T2ε _∥The situation of relation under, liquid crystal molecule 51 is owing to topple over towards this dielectric projection around voltage applies Shi Yaocong, so under the situation that will constitute the liquid crystal indicator that possesses the 2nd dielectric projection, if use formation shown in Figure 1, then the result just become for dielectric projection 18 the same sides (electrode 9 tops of the 2nd substrate), and be on the both sides between dielectric projection 18 is clipped in, the edge part 31a that replaces the 1st electrode 31, the 2nd dielectric projection is set, in formation shown in Figure 2, with the end of the opposition side (on the electrode 9 of the 2nd substrate) of dielectric projection 18 on, replace the 31a of edge portion of first electrode, be provided with the 2nd dielectric projection.If adopt these formation, even if then the dielectric coefficient ε that has than the long axis direction of liquid crystal molecule _∥Higher dielectric coefficient ε _T2The 2nd dielectric projection be set to also can obtain the demonstration of wide visual angle, high briliancy in the liquid crystal indicator of the orientation control structure adjacent with dielectric projection 18.

(the concrete configuration example of liquid crystal indicator)

Formation shown in the above-mentioned example can be used in possessing all liquid crystal indicators of dielectric anisotropy for negative vertical orientated liquid crystal.Figure 11 is the summary pie graph of various liquid crystal indicators, and Figure 11 (a) is a transmission-type, (b) is reflective, is Transflective (c) and (d).In addition, Figure 11 (c) is used as device substrate to the 1st substrate, and the 2nd substrate is used as the situation of subtend substrate, is that the 2nd substrate is used as the situation that device substrate is used as the 1st substrate the subtend substrate (d).In each liquid crystal indicator shown in Figure 11, as long as on the surface of transparency electrode, formed dielectric projection, aperture slots etc., can obtain the said effect in top, so, in embodiment described later, the liquid crystal indicator of the transmission-type shown in Figure 11 (a) is described as the 1st configuration example.In addition, as the 2nd configuration example, examples of applications in the liquid crystal indicator of the Transflective shown in Figure 11 (c) will be described.

＜the 1 configuration example 〉

The oblique view of Figure 12 shows the detailed configuration example of the liquid crystal indicator of previous example, Figure 13 is the cut-away section pie graph in 1 some zone of liquid crystal indicator, and the planimetric map of Figure 14 shows the formation of 1 pixel region that 3 somes zones of usefulness of the same liquid crystal indicator constitute.Liquid crystal indicator shown in these figure, though be the color liquid crystal display arrangement that uses the active matrix mode of TFD (thin film diode) element (2 terminal formula nonlinear element) as on-off element, but the present invention also can use in the liquid crystal indicator of the active matrix mode of using TFT (thin film transistor (TFT)) element as on-off element.In addition, cut-away section structure shown in Figure 13 is with corresponding along the profile construction of A-A line shown in Figure 14.

As shown in figure 12, the liquid crystal indicator that this is routine is to be that main body constitutes with device substrate opposite to one another (the 1st substrate) 25 and subtend substrate (the 2nd substrate) 10, seizes the liquid crystal layer that does not draw and on both sides by the arms 10,25 of above-mentioned two substrates.This liquid crystal layer just as conceptually illustrating among Figure 13, presents vertical orientated dielectric anisotropy by initial orientation and constitutes for negative liquid crystal.Device substrate 25, be the substrate that the translucent material by glass or plastics, quartz etc. constitutes, face one side (diagram lower surface one side) is provided with upwardly extending many data lines 11 in the side that the sweep trace 9 with above-mentioned subtend substrate 10 intersects with going up ribbon within it.In addition, arranging a plurality of pixel electrodes (the 1st electrode) 31 that vertical view that the transparent conductive material of formation by ITO (tin indium oxide) etc. constitute is roughly rectangular shape rectangularly, simultaneously, couple together with above-mentioned data line 11 by the TFD element 13 that is provided with accordingly with each pixel electrode.

On the other hand, subtend substrate 10 also is the substrate that the translucent material by glass or plastics, quartz etc. constitutes, and on face one side (diagram upper surface one side), is formed with color filter layer 22 and multi-strip scanning line 9 within it.Color filter layer 22, as shown in figure 12, it is by color filter 22R, 22G, the 22B of rectangular shape line up periodically and constitute substantially vertical view.Each color filter 22R, 22G, 22B form corresponding with the pixel electrode 31 of said elements substrate 25.In addition, sweep trace 9 is formed by the transparent conductive material of ITO etc. substantially bandedly, extends on the direction that the data line 11 with said elements substrate 25 intersects.In addition, sweep trace 9 is formed the above-mentioned color filter 22R, 22G, the 22B that are arranging and covers on its bearing of trend, play a part counter electrode (the 1st electrode).In addition, by 1 point that the district constitutes that forms of pixel electrode 31, constitute 1 pixel with 3 points that possess color filter 22R, 22G, 22B.

[profile construction]

Secondly, Figure 13 is the cut-away section pie graph in 1 some zone of Figure 12.In this Figure 13,, omit the TFD element and the various wiring of not drawing device substrate 25 for the ease of understanding.

As shown in figure 13, liquid crystal layer one side at the pixel electrode 31 of device substrate 25 is formed with the vertical alignment layer 33 that is made of polyimide etc.In addition, the liquid crystal layer side of the counter electrode in subtend substrate 10 9 forms the vertical alignment layer 23 that polyimide constitutes.In addition, for alignment films 23,33, though all implemented vertical orientated processing, the processing of giving pre-tilt angle that but rubs etc.

In addition, between device substrate 25 and subtend substrate 10, seize the liquid crystal layer 50 that constitutes for negative liquid crystal material by dielectric anisotropy on both sides by the arms.This liquid crystal material just as conceptually illustrating by means of liquid crystal molecule 51, vertically is orientated for alignment films when no-voltage applies, when being applied with voltage, then become for for alignment films abreast (in other words, vertical) with direction of an electric field be orientated.In addition, by means of the encapsulant on the peripheral part that is coated to device substrate 25 and subtend substrate 10 (not drawing) device substrate 25 and subtend substrate 10 are being bonded to each other, simultaneously, liquid crystal layer 50 is sealing in the space that is formed by device substrate 25 and subtend substrate 10 and encapsulant.

On the other hand, polarizer 36 and polaroid 37 are set on the outside of device substrate 25, polarizer 26 and polaroid 27 also are set on the outside of subtend substrate 10.This polaroid 27,37 has the function that only makes the rectilinearly polarized light transmission of vibrating on specific direction.In addition, polarizer 26,36, what adopt is to have the λ of the phase differential of 1/4 wavelength/4 plates substantially for wavelength of visible light, in addition, the phase lag axle of the axis of homology of polaroid 27,37 and polarizer 26,36 is configured to make it to become be about 45 degree, constitutes circular polarizing disk with polaroid 27,37 and polarizer 26,36.By means of this circular polarizing disk, just can be transformed into circularly polarized light to rectilinearly polarized light, circularly polarized light is transformed into rectilinearly polarized light.In addition, the axis of homology of the axis of homology of polaroid 27 and polaroid 37 is configured to make it orthogonal, the phase lag axle of the phase lag axle of polarizer 26 and polarizer 36 also is configured to make it to dispose orthogonally.In addition, the outside of liquid crystal cells that these are positioned at outside one side of subtend substrate 10, be provided with have light source, the backlight (lighting device) 60 of reverberator, light guide plate etc.

In the liquid crystal indicator of this example shown in Figure 13, can carry out image as followsly and show.The light that shines in from backlight 60, in transmission be transformed into circularly polarized light behind polaroid 27 and the polarizer 26, to liquid crystal layer 50 incidents.In addition, when no-voltage applies, there is not the refractive index anisotropy owing to be oriented to the liquid crystal molecule vertical, in liquid crystal layer 50 so incident light will keep the state of circularly polarized light to advance unchangeably with substrate.In addition, in transmission the incident light behind the polarizer 36, then be transformed into the rectilinearly polarized light vertical with the axis of homology of polaroid 37.In addition, because this rectilinearly polarized light can transmission-polarizing sheet 27, so in the liquid crystal indicator of this example, when no-voltage applies, just carry out black display (normality black mode).

On the other hand, when being applied with voltage for liquid crystal layer 50, liquid crystal molecule will possess the refractive index anisotropy for parallel with substrate because of reorientation.For this reason, incide circularly polarized light on the liquid crystal layer 50, in the process of transflective liquid crystal layer 50, just be transformed into elliptically polarized light from backlight 60.Even if this incident light transmission can not be transformed into the rectilinearly polarized light vertical behind the polarizer 36 with the axis of homology of polaroid 37 yet, its all or part of with transmission-polarizing sheet 37.Therefore, in the liquid crystal indicator of this example, when voltage applies, just can carry out white and show.In addition, adopt the way that the voltage that is applied on the liquid crystal layer 50 is adjusted, carry out gray shade scale and show it also is possible.

[orientation control device]

The planimetric map of Figure 14 shows the structure of 1 pixel region that 3 somes zone of liquid crystal indicator shown in Figure 12 constitutes, and shows the member of formation of device substrate with solid line, has been shown in broken lines the member of formation of subtend substrate.As shown in figure 14, on the surface of pixel electrode 31 and counter electrode 9, form the aperture slots 31b or the dielectric projection 18 of the orientation control device that is used as liquid crystal molecule.On pixel electrode 31, be formed with the banded substantially a plurality of aperture slots 31b of vertical view.In addition, on the surface of counter electrode 9, then form with the banded substantially a plurality of dielectric projections 18 of vertical view.In addition, the configuration relation at each dielectric projection 18 that forms on the subtend substrate 10 and each aperture slots 31b of forming on device substrate 25 is not configured for the long side direction for pixel electrode 31 alternatively (does not differ from one another to planarity) overlappingly.In addition, the interval that each projection 18 and each slit 31b are configured so that the interval of each projection 18 and each slit 31b along with from a side's of pixel electrode 31 long limit before the opposing party's long limit and then broaden.In addition, also can reverse, on counter electrode 9, form aperture slots, on pixel electrode 31, form the dielectric projection with above-mentioned.

Dielectric projection 18 is made of the dielectric substance of resin etc., with the formation such as photoetching of using grey mask.Under the situation of this routine liquid crystal indicator, in the formation of liquid crystal indicator shown in Figure 1 100, be the formation that adopts a plurality of dielectric projections 18 and orientation control structure (aperture slots), therefore, the dielectric coefficient ε of this dielectric projection 18 _T1Just become and be long axis direction dielectric coefficient ε than liquid crystal molecule 51 _∥Little.In other words, the liquid crystal indicator of this configuration example, what adopt is the basic comprising and the effect of liquid crystal indicator shown in Figure 1, because can be according to the relation of the dielectric coefficient between dielectric projection 18 and the liquid crystal layer 50, correctly determine the configuration relation of dielectric projection 18 and aperture slots 31b, so can obtain in a zone, not producing good demonstration disclination, wide visual angle, high-contrast.

In addition, in the liquid crystal indicator of this configuration example, from the plane, the result become for liquid crystal molecule when voltage applies be that topple over radially at the center with banded substantially aperture slots 31b.In addition, the result also become for liquid crystal molecule 51 be that topple over radially at the center with banded substantially dielectric projection 18.Effect by means of these dielectric projections 18 and aperture slots 31b, liquid crystal molecule just is orientated on certain direction between dielectric projection 18 shown in Figure 14 and aperture slots 31b, consequently can correctly be orientated control to the liquid crystal layer in the zone 50.

In addition, in this example, the orientation control structure adjacent with dielectric projection 18, though form the structure that on an electrode that the zone is provided with, forms aperture slots 31b, but the inboard that also can be formed on this aperture slots is provided with other dielectric projection, dielectric coefficient ε _T2Has ε _∥ε _T2The formation of other dielectric projection of relation.If adopt this formation, because the orientation control structure of oblique electric field that produces owing to the periphery in aperture slots and the orientation control of being carried out liquid crystal molecule by the electric field distortion that the dielectric projection produces will be set, so even if those also can be orientated control well from the liquid crystal molecule that orientation control structure leaves distance, become to improving favourable structure aspect response speed or the aperture opening ratio.

In addition, in this example, though form the formation of dielectric projection 18 in counter electrode 9 tops,, also counter electrode 9 incised notch can be become the slit of the flat shape corresponding with dielectric projection 18, the formation of dielectric projection 18 is set in this inside, slit.In other words, also can form at least a portion of counter electrode 9 of substrate of the part that constitutes dielectric projection 18 by the formation of incised notch (having formed opening).Owing to become such formation, make the distortion that can increase when voltage applies the electric field that the periphery in dielectric projection 18 produces to obtain bigger orientation limitations power, so can improve the response speed of liquid crystal indicator.

＜configuration example 2 〉

Secondly, the 2nd configuration example to liquid crystal indicator of the present invention describes.Figure 15 is the section pie graph of length (long limit) direction in 1 some zone of the liquid crystal indicator of this configuration example, and Figure 16 shows the plane pie graph with 1 pixel region of 3 somes zone formations of the same liquid crystal indicator.The liquid crystal indicator of this configuration example is the liquid crystal indicator of Transflective.In addition, for the part of the same formation of those and example 1, omit its detailed explanation.In addition, profile construction shown in Figure 15, corresponding with profile construction along the B-B line of Figure 16.

As shown in figure 15, in the liquid crystal indicator of the 2nd configuration example, be formed with the reflectance coating 20 that constitutes by high metal film such as the reflectivity of aluminium or silver etc. etc. in the inboard of the 2nd substrate (subtend substrate) 10.On the part of this reflectance coating 20, be formed with and the transmission viewing area opening portion 20a of incised notch accordingly.In addition, lap between the formation district of pixel electrode (the 1st electrode) 31 and the formation district of reflectance coating 20 forms reflective display region, lap between the non-formation district of the formation district of pixel electrode 31 and reflectance coating 20 (the formation district of opening portion 20a in other words) forms the transmission viewing area.In addition, in the inboard of reflectance coating 20 and substrate 10 color filter layer 22 is set.In addition, in reflecting demonstration and transmission shows, showing that the different of colourity of look compensate, the color material layer that changes excitation can be set individually in reflective display region and transmission viewing area also.

On the other hand, in liquid crystal layer one side of device substrate (the 1st substrate) 25, according to pixels the order of electrode 31 and a plurality of (3) dielectric projection 18 and vertical alignment layer 33 is provided with.

On corresponding with the reflective display region substantially planimetric position of color filter layer 22 tops, form dielectric film 21.Dielectric film 21 by means of the organic membrane of for example acrylic resin etc., forms about 2 microns ± 1 micron of thickness.Do not exist the thickness of liquid crystal layer 50 of the part of dielectric film 21 to be about about 2 to 6 microns, the thickness of the liquid crystal layer 50 on the reflective display region become for the thickness of the liquid crystal layer on the transmission viewing area 50 only about half of.That is, dielectric film 21 makes the different liquid crystal bed thickness adjustment layer of bed thickness of the liquid crystal layer 50 in reflective display region and transmission viewing area play a role as the thickness by means of self, thereby can realize many gaps structure.The liquid crystal indicator that this is routine constitutes by means of this, can obtain bright and the high demonstration of contrast.In addition, the boundary vicinity between reflective display region and transmission viewing area is formed with the dip plane that the bed thickness that makes dielectric film 21 changes continuously.

In transflective liquid crystal display device shown in Figure 15, can carry out image as followsly and show.At first, incide the light on the reflective display region from the top of device substrate 25, in transmission be transformed into circularly polarized light behind polaroid 37 and the polarizer 36, to liquid crystal layer 50 incidents.In addition, when no-voltage applies, there is not the refractive index anisotropy owing to be oriented to the liquid crystal molecule vertical, in liquid crystal layer 50 so incident light will keep the state of circularly polarized light to advance unchangeably with substrate.In addition, after film 20 reflection that is reflected, once more transmission the incident light behind the polarizer 36, then be transformed into the rectilinearly polarized light vertical with the axis of homology of polaroid 37.In addition, this rectilinearly polarized light can transmission-polarizing sheet 37.On the other hand, incide light on the transmission viewing area from backlight 60, too in transmission be transformed into circularly polarized light behind polaroid 27 and the polarizer 26, to liquid crystal layer 50 incidents.In addition, transmission the incident light behind the polarizer 36, then be transformed into the rectilinearly polarized light vertical with the axis of homology of polaroid 37.In addition, because this rectilinearly polarized light can transmission-polarizing sheet 37, so in the liquid crystal indicator of this example, when no-voltage applies, just carry out black display (normality black mode).

On the other hand, when being applied with voltage for liquid crystal layer 50, liquid crystal molecule will possess the birefringence effect for parallel with substrate because of reorientation.For this reason, in reflective display region and transmission viewing area, incide the circularly polarized light on the liquid crystal layer 50, in the process of transflective liquid crystal layer 50, just be transformed into elliptically polarized light.Even if this incident light transmission can not be transformed into the rectilinearly polarized light vertical behind the polarizer 36 with the axis of homology of polaroid 37 yet, its all or part of just with transmission-polarizing sheet 37.Therefore, in the liquid crystal indicator of this example, when voltage applies, just can carry out white and show.In addition, adopt the way that the voltage that is applied on the liquid crystal layer 50 is adjusted, carry out gray shade scale and show it also is possible.

As mentioned above, in reflective display region, though incident light is wanted transflective liquid crystal layer 50 2 times, but only transmission 1 time of incident light in the transmission viewing area.In this case, when the light path (phase difference value) of liquid crystal layer 50 between reflective display region and transmission viewing area not simultaneously, the result just becomes to showing because of produced the image that difference can not get homogeneous on light transmission.But, in the liquid crystal indicator of this example, adjust layer 21 owing to be provided with the liquid crystal bed thickness, so in reflective display region, just can adjust light path.The image that therefore just can obtain homogeneous in reflective display region and transmission viewing area shows.

[orientation control device]

Figure 16 shows the plane pie graph of 1 pixel region of liquid crystal indicator shown in Figure 15, and each inscape on the device substrate represents that with solid line the inscape of subtend substrate is represented with dot-and-dash line.As shown in figure 16, on pixel electrode 31, be formed with a plurality of slit 31c (electrode incised notch) towards middle body ground from its long limit.In other words, the pixel electrode 31 with 1 some zone disposes accordingly constitutes with the sub-pixel 32 of 3 islands with the coupling part that they couple together, and this coupling part is used as the slit 31c (incised notch of electrode) of the orientation control of carrying out liquid crystal molecule in fact.By means of this slit 31c, pixel electrode 31 is divided into 3 sub-pixels 32, and each sub-pixel is coupled together with middle body.In addition, at least 1 sub-pixel within 3 sub-pixels 32, be assigned with form corresponding with reflective display region.Therefore, just become in the same substrate top that has formed pixel electrode 31, according to the formation of arranged in order on length (long limit) direction of pixel electrode 31 of dielectric projection 18, slit 31c, dielectric projection 18, slit 31c and dielectric projection 18.

In addition, on the surface of the pixel electrode 31 of the core that is equivalent to each sub-pixel 32, be formed with dielectric projection 18 respectively.It is round-shaped substantially that this dielectric projection 18 is formed vertical view, and simultaneously, as shown in figure 15, it is triangular shaped substantially to be formed side view.In other words, the liquid crystal indicator of this configuration example, what adopt is the basic structure and the effect of the liquid crystal indicator 200 of example 2 shown in Figure 2, is a plurality of slit 31c that a plurality of dielectric projections 18 and this are controlled structure as orientation are arranged on liquid crystal indicator on the same substrate.

By means of the electrode structure that has formed above-mentioned sub-pixel, just can in 1 some zone, form a plurality of liquid crystal territory.In addition, implemented chamfering for the corner part of sub-pixel 32, sub-pixel 32 is made into vertical view octagon or round-shaped substantially substantially.In addition, when being applied with voltage to liquid crystal layer, liquid crystal molecule 51 just will vertically be toppled over for the profile (edge part 31a shown in Figure 1) of sub-pixel 32.In addition, periphery place in dielectric projection 18, when no-voltage applies, liquid crystal molecule 51 just is oriented to vertical with the dip plane of dielectric projection 18, when voltage applies, as shown in figure 16, liquid crystal molecule 51 just will be toppled over towards dielectric projection 18 ground, and liquid crystal molecule 51 is that central plane is orientated radially with this dielectric projection 18 just.

Therefore, just can make the guides of a plurality of liquid crystal molecules, just can provide the visual angle wide liquid crystal indicator.In addition, also can on counter electrode 9, form slit and dielectric projection with above-mentioned opposite.

In the liquid crystal indicator of Figure 15 and this configuration example shown in Figure 16, because slit 31C and dielectric projection 18 are arranged on the pixel electrode 31, so when device substrate 25 and subtend substrate 10 being bonded together in order to seize liquid crystal layer 50 on both sides by the arms, just can obtain such advantage: do not need to carry out the position alignment between slit 31c and the dielectric projection 18, the manufacturing that makes liquid crystal indicator become get up easily in, can also expect the raising of yield rate.

(electronic equipment)

The oblique view of Figure 17 shows an example of electronic equipment of the present invention.Mobile phone 1300 shown in this figure, it has liquid crystal indicator of the present invention is used as undersized display part 1301, possesses a plurality of operation push-buttons 1302, receiving mouth 1303 and mouth piece 1304.

The display device of above-mentioned each example, be not limited to above-mentioned mobile phone, also can be used as e-book, personal computer, digital still life camera, LCD TV satisfactorily, video cassette recorder, guider, pager, electronic notebook, counter, word processor, workstation, videophone, the POS terminal of find a view type or monitor direct viewing type, the image display device that possesses the equipment etc. of touch panel, no matter in any electronic equipment, can become clear, contrast is high and the transmission at wide visual angle/reflection demonstration.

Claims (3)

1. one kind is provided with the some zone that constitutes the unit of display, comprises that original state presents the liquid crystal indicator of vertical orientated liquid crystal layer, is characterized in that:

Above-mentioned some zone has the pixel electrode that comprises a plurality of sub-pixels,

Each sub-pixel is formed with connexon pixel coupling part and slit each other each other, and each subpixel configuration is had the dielectric projection,

With the time to above-mentioned liquid crystal applied voltages, the mode that above-mentioned liquid crystal on the straight line that connects the above-mentioned dielectric projection seen on the plane and above-mentioned slit is not toppled over round about is provided with the relation of the dielectric coefficient of the long axis direction of the dielectric coefficient of above-mentioned dielectric projection and above-mentioned liquid crystal and short-axis direction.

2. liquid crystal indicator according to claim 1 is characterized in that:

At the dielectric coefficient of establishing above-mentioned dielectric projection is ε _T1, the dielectric coefficient of establishing the long axis direction of above-mentioned liquid crystal is ε _∥, the dielectric coefficient of short-axis direction is ε _⊥The time, have ε _T1＞ε _∥Relation.

3. an electronic equipment is characterized in that: possess claim 1 or 2 described liquid crystal indicators.

Images