CN1576975A

CN1576975A - Liquid crystal display components

Info

Publication number: CN1576975A
Application number: CN 200410058942
Authority: CN
Inventors: 杉山贵; 岩本宜久
Original assignee: Stanley Electric Co Ltd
Current assignee: Stanley Electric Co Ltd
Priority date: 2003-07-23
Filing date: 2004-07-23
Publication date: 2005-02-09
Anticipated expiration: 2024-07-23
Also published as: CN100412660C; JP3834304B2; JP2005043696A

Abstract

The invention relates to a liquid crystal display element, comprising a pair of substrates provided with transparent electrodes with predetermined graphics to display and the liquid crystal clamped by the substrates, which is characterized in that in the opposite area of the transparent electrodes on the pair of substrates, slits (1, 2) are formed by cutting one part in the shape of rectangle on the transparent electrodes of the pair of substrates. The slit (1) on the transparent electrode of one substrate and the slit (2) on the transparent electrode of the other substrate are arranged alternatively vertical to the longitude direction of the slit in the opposite area. The short side of the slit (1) on the transparent electrode of one substrate and the short side of the slit (2) on the transparent electrode of the other substrate are staggered in the direction of the longitude direction of the slit at the unaligned position in the direction vertical to the longitude direction of the slit. The liquid crystal display element has the advantages of simplifying design, reducing the cost, preventing bad display and possessing sound visual angle property.

Description

Liquid crystal display cells

Technical field

The present invention be more particularly directed to improve the liquid crystal display cells of viewing angle characteristic.

Background technology

In order to improve the viewing angle characteristic of liquid crystal display cells, it is very effective that slit is set on electrode.About the existing concrete motion (for example with reference to patent documentation 1) of TN-LCD, about vertical orientated LCD motion (spy is willing to (2003.2.21) flat 2003-044262 number) has been arranged also in addition.In these motions, be described as follows about the feature of slit configuration and the effect of slit.

Have: a pair of substrate of relative configuration; Be located on the described a pair of substrate, overlap and form a pair of transparency electrode of viewing area across liquid crystal layer; The removed rectangle slit of the part of the transparency electrode of the described viewing area separately of described a pair of transparency electrode, the described slit of the described slit of a side's of described a pair of transparency electrode transparency electrode and the opposing party's transparency electrode in described viewing area with direction slit longitudinally quadrature on alternately configuration.

By described slit is set in the viewing area, when applying voltage, near the edge of slit, produce tilting electric field (electric field that direction of an electric field tilts from the substrate normal direction), can control the toppling direction of liquid crystal molecule.And by alternate configurations slit between a pair of transparency electrode, the direction of the tilting electric field at the two ends, viewing area separately that surrounded by slit forms equidirectional (being parallel to each other).And between the viewing area that keeps apart with adjacent slit, the direction of this tilting electric field is opposite.Figure 10 represents its concrete state.

Figure 10 is the sectional view of the tilting electric field state of the above-mentioned viewing area of expression, the section shape when expression is cut into the right angle with the relative slit longitudinally of liquid crystal display cells.In the figure, 1,2 expressions are located at the slit of the transparency electrode 3,4 on the upper and lower base plate, produce tilting electric field 5 by its position is departed from up and down.

Relative tilt electric field 5 vertical orientated liquid crystal molecules are toppled over to direction shown in Figure 11, form above-mentioned narrow slit structure, thus, in the zone that forms by

slit

1,2 respectively the liquid crystal molecule 6 of adjacent areas topple in the opposite direction respectively.Can realize so-called pair of farmland orientation texture.Under the situation of TN-LCD, its principle is also identical therewith, replaces lqiuid crystal molecule tipping, and the liquid crystal molecule of horizontal alignment rises from both direction, only this difference.

And, wherein represented the embodiment of concrete shape of slit.Under the situation of the TN-LCD of patent documentation 1, as shown in figure 12,1 elongate slit that is formed by connecting to the end from the end of viewing area is on the direction that alternately is configured on the upper and lower base plate with slit longitudinally quadrature.This figure (a) represents its vertical view, (b) represent its stereographic map, 1a, 1b, 1c represent the slit of upside substrate, 2a, 2b, 2c represent the slit of downside substrate, the direction of orientation of 7 expression upside substrates, the direction of orientation of 8 expression downside substrates, the direction of orientation of the liquid crystal molecule of 9 expression liquid crystal layer central portions.

Under the situation of vertical orientated LCD, as shown in figure 13, blocked on the direction that alternately is being configured on the upper and lower base plate for a plurality of slits with slit longitudinally quadrature at the slit longitudinally.This figure (a) represents its vertical view, (b) represents its stereographic map.

Resemble the former and use under the situation of 1 elongate slit, need connect the zone of dividing with slit (with reference to Figure 12) in the outside, viewing area.Though this can accomplish in design, makes design complicate, and causes cost to rise, make the registration accuracy of upper/lower electrode figure also become strict.

And in the latter's example, slit is blocked, and the zone of dividing with slit is connected in the viewing area, thus need not connect them in the outside, viewing area, can the graphic simplicity design.But, use this at the intercepted slit of longitudinally, cause easily show bad.

Figure 14 represents to use the bad example (photo) of demonstration of two farmland TN-LCD that the above-mentioned latter's slit makes.This pair farmland TN-LCD uses the low pitch angle alignment films that presets, and make the grinding direction of one-sided substrate opposite with common direction, the element thickness direction is radiated orientation to liquid crystal molecule relatively, make the pitch angle of the liquid crystal molecule of unit central authorities become 0 degree, can stablize the two farmlands of acquisition orientation thus.

The part of surrounding with circle distinguishes that the differentiation line that is connected the adjacent slit of longitudinally originally will link together at the adjacent slit of horizontal short direction in the figure.In with 2 differentiation line area surrounded that connect the horizontal short direction of this slit, liquid crystal molecule is from rising in the opposite direction with the side that should rise.Therefore, view directions becomes reverse direction in this zone, if form a plurality of this zones, then causes showing bad.Specifically, to the horizontal short direction inclination of slit visual angle the time, can see and be presented at flickering.And distinguish that this demonstration is bad more obvious when making liquid crystal cells continue to show under the high temperature atmosphere.

Figure 15 is the enlarged drawing (photo) that continues the viewing area of demonstration after 500 hours approximately at 85 ℃.Can distinguish that 2 differentiation line area surrounded with the horizontal short direction of before having seen of connection slit present broad range.When this unit of visualization, be difficult to see.Use Figure 16 to analyze and produce the bad reason of this demonstration.

Figure 16 is the figure of the state of orientation of the bad liquid crystal molecule of the above-mentioned demonstration of expression, has schematically illustrated the state of orientation of liquid crystal molecule of the A-A ' section of Figure 15.By slit make A-A ' form original as shown in the figure zone 1 (molecule rises from right) and two farmlands of zone 2 (molecule from left to rising) be orientated, continuously changing orientation at its boundary liquid crystal molecule 6, is to be formed centrally during the part of 0 degree is to distinguish line (the differentiation line that connects the slit longitudinally) with the tiltangle that presets of the liquid crystal molecule 6 of unit central authorities.

The pitch angle of presetting of original upper and lower base plate equates, is that the liquid crystal molecule of the unit central authorities of 0 degree is the radiation orientation that symmetry is carried out at the center to preset tiltangle therefore.The free energy that forms because of the elastic deformation of zone 1 and zone 2 liquid crystal molecule equates that two zones keep balances, distinguish line not in time process and move and keep stable.And, upper and lower base plate preset the pitch angle because of delicate deviation of grinding condition etc. not simultaneously (in Figure 16, the pitch angle of presetting of upside substrate becomes big, θ 1＞θ 2), the free energy quantitative change in two zones gets unequal, free energy quantitative change to the zone of the rising of presetting the big side in pitch angle (zone 2) is little, and is more stable than opposite zone (zone 1).

When forming this state, Liquid Crystal Molecules Alignment becomes more stable status, so shown in the arrow of Figure 16, produce and distinguish moving of line, zone 1 diminishes gradually along with the process of time, promptly is embedded in soon in the zone 2.Owing to use the low tilted alignment film that presets, so the difference that presets the pitch angle of upper and lower base plate is very little, the difference of the free energy in zone 1 and zone 2 is little, think and can not produce moving of this differentiation line at normal temperatures, but at high temperature the elastic constant of liquid crystal molecule diminishes, moving about of liquid crystal molecule becomes big, thus think that meeting produces moving of this differentiation line, and it is bad to develop into demonstration shown in Figure 15.

In addition, show as shown in figure 14 bad be at normal temperatures and apply voltage after at once produce, the difference that presets the pitch angle of upper and lower base plate that its reason is considered to this part is big, the difference of the free energy in two zones shown in Figure 16 is big, distinguish moving of line so after applying voltage, produce at once, or because the initial size that just produces is about and makes this zone preset inclination angular difference from what rise in the other direction.

No. 3108768 communique of patent documentation 1 patent

As mentioned above, by electrode slit is set and improves viewing angle characteristic, but the complicated and cost that causes sometimes designing rises or assembly precision becomes strict at the upper and lower base plate of liquid crystal display cells.In addition, the generation demonstration is bad sometimes, the sensation that produces the flickering sense or be difficult to watch.

Summary of the invention

The present invention In view of the foregoing proposes, its objective is provides a kind of liquid crystal display cells, can prevent that the complicated and cost that designs from rising and show bad generation,, also can obtain the good viewing angle characteristic of the flickering sense of imperceptible demonstration even when tilting at the visual angle.

Liquid crystal display cells of the present invention, constitute by a pair of substrate holding liquid crystal with the transparency electrode that is formed with compulsory figure in order to show, it is characterized in that, the relative zone of transparency electrode on described a pair of substrate, on these a pair of substrate both sides' transparency electrode, has the slit that forms by its part of rectangle ground excision, be located at the described slit on the transparency electrode on a side the substrate and be located at described slit on the opposing party's the transparency electrode, in described relative zone, with the direction of the longitudinally quadrature of slit on alternately configuration, be located at the minor face of the slit on a side the transparency electrode and be located at the minor face of the slit on the opposing party's the transparency electrode, in the position that the direction with the longitudinally quadrature of slit does not line up, be configured on the position of staggering mutually on the longitudinally of this slit.

According to the present invention, have following effect, can prevent that the complicated and cost that designs from rising and show bad generation, even when tilting, also can obtain the good viewing angle characteristic of the flickering sense of imperceptible demonstration at the visual angle.

Description of drawings

Fig. 1 is the key diagram of the slot pattern of expression reference example 1.

Fig. 2 is the figure of the grinding direction of expression embodiment.

Fig. 3 is the figure of absorption axes of the Polarizer of expression embodiment.

Fig. 4 is the key diagram of the slot pattern of expression embodiment 1.

Fig. 5 is the figure (photo) of the demonstration example of expression embodiment 1.

Fig. 6 is the figure of the cellular construction of expression reference example 2.

Fig. 7 is that expression makes the planimetric map of slit in the unswerving structure of longitudinally.

Fig. 8 is that expression makes slit depart from the planimetric map of the structure of half pitch at longitudinally.

Fig. 9 is the planimetric map of the pixel region of expression tft active matrix liquid crystal cells.

Figure 10 represents the sectional view of state of the tilting electric field of viewing area.

Figure 11 is the key diagram of expression because of the liquid crystal molecule state of tilting electric field formation.

Figure 12 represents the figure of the shape of slit of example in the past.

Figure 13 represents other figure of the shape of slit of example in the past.

Figure 14 is that expression shows bad exemplary plot (photo).

Figure 15 amplifies expression to show bad exemplary plot (photo).

Figure 16 is the key diagram that expression shows the state of orientation of bad liquid crystal molecule.

Among the figure: 1 ... the slit of upside substrate; 2 ... the slit of downside substrate; 3 ... transparency electrode; 4 ... transparency electrode; 5 ... tilting electric field; 6 ... liquid crystal molecule; 11 ... Polarizer; 12 ... Polarizer; 13 ... the viewing angle compensation film; 14 ... vertical orientating type LCD; 15 ... the upside substrate; 16 ... the downside substrate; 20 ... the TFT element; 21 ... the transparent pixels electrode; 24 ... slit; 25 ... slit.

Embodiment

Below, with reference to the description of drawings embodiments of the invention.

[embodiment]

At first, simultaneously relatively embodiments of the invention 1 and reference example 1 one side are elaborated.In reference example 1 and embodiment 1, the situation when the two farmland TN-LCD that the present invention is applicable to that segmentation shows is described.

(reference example 1)

Has the slit that the part of transparency electrode is excised in the viewing area, the described slit of the described slit of a side's of a pair of transparency electrode transparency electrode and the opposing party's transparency electrode with relative configuration in described viewing area alternate configurations with the substrate of the compulsory figure of the direction of the longitudinally quadrature of this slit on, apply and lowly preset the alignment films (daily output chemical industry system SE-510) at pitch angle and carry out sintering.Then, use the abrasive cloth of レ one ヨ Application corporate system to grind substrate according to relation shown in Figure 2.The torsional direction of liquid crystal is to left handed twist.

Fig. 1 is the figure of the slot pattern behind the described unit of expression formation, the slit of 1 expression upside substrate, the slit of 2 expression downside substrates.The size of

slit

1,2 is 20 μ m * 100 μ m, and slit is that length direction is 20 μ m at interval up and down, and perpendicular direction is 40 μ m.Fig. 2 is the figure of the grinding direction behind the described unit of expression formation.The grinding direction of upside substrate is vertical with the grinding direction of downside substrate.

By forming above-mentioned grinding direction shown in Figure 2, liquid crystal molecule radiates orientation, and the pitch angle of the liquid crystal molecule of unit central authorities is 0 degree.2 substrates to such making apply the primary seal material, and dispersion diameter is the gap control material of 9 μ m.Make coincidence then, and make the primary seal material cured.And the liquid crystal of the birefraction 0.25 of the big Japanese ink of injection Co., Ltd. system is finished liquid crystal cells in the dummy cell that obtains.Paste Polarizer according to structure shown in Figure 3 to this liquid crystal cells.Can make the normal black two farmland TN-LCD that show thus.

Fig. 3 is the figure of the absorption axes of expression Polarizer, and the absorption axes of the Polarizer of front face side (upside) is parallel with the absorption axes of the Polarizer of rear side (downside).

When applying voltage to said units and show, it is bad to produce demonstration shown in Figure 14 in a plurality of parts, when vergence direction is watched liquid crystal cells, can see being presented at flickering.This is because in 2 differentiation line area surrounded with the horizontal short direction of connection slit, liquid crystal molecule becomes in the other direction in this zone view directions from rising in the opposite direction with the side that should rise.

And when under 85 ℃ of temperature this unit being switched on continuously, it is bad to produce demonstration shown in Figure 15 after approximately through 500 hours, forms the show state that is difficult to watch.But this demonstration is bad to be made liquid crystal molecule return initial orientation state can to eliminate by reducing voltage for the time being, when improving voltage once more and showing, can not form this show state that is difficult to watch.Eliminated and shown bad unit once more when the energising of 85 ℃ of temperature reducing voltage for the time being, produced specifically that to be difficult to the demonstration watched equally bad after through 60 hours.

[embodiment 1]

Has the slit that the part of transparency electrode is excised in the viewing area, the described slit of the described slit of a relative side's of a pair of transparency electrode of configuration transparency electrode and the opposing party's transparency electrode in described viewing area alternate configurations with the direction of the longitudinally quadrature of this slit, and have slit on the transparency electrode that slit on the transparency electrode that is located at the opposing party is configured to be located at relatively a side and depart from the slit longitudinally on the substrate of compulsory figure of state of half pitch, apply and lowly presets the alignment films (daily output chemical industry system SE-510) at pitch angle and carry out sintering.Then, use レ one ヨ Application corporate system abrasive cloth to grind substrate according to relation shown in Fig. 2 (diagram forms the grinding direction behind the unit).The torsional direction of liquid crystal is to left handed twist.

Fig. 4 is the figure that expression forms the slot pattern of the present embodiment behind the unit, and the size of the slit 1 of upside substrate and the slit 2 of downside substrate and length direction are identical with Fig. 1 at interval, but two

slits

1,2 depart from half pitch at length direction.Identical with interval and Fig. 1 of the direction of length direction quadrature.

When this unit applies voltage and shows, as shown in Figure 5, can realize can not being created in the bad demonstration of demonstration that the differentiation line because of being connected between the adjacent slit of the horizontal short direction of slit that Figure 14 sees produces, even watch the also imperceptible flickering in unit from vergence direction.And, when under 85 ℃ of temperature, this unit being switched on continuously, after through 100 hours, still keep show state clearly, do not produce any problem.

The following describes slit sizes, be wider than when above to a certain degree at slit width (with the length of the direction of longitudinally quadrature), the electric field of slit central portion extremely dies down, and produces liquid crystal molecule to applying the responseless zone of voltage, produce in this zone show bad.And the part beyond the slit is that the area in the zone of liquid crystal molecule response electric field diminishes, because so-called aperture opening ratio diminishes, so the transmitance when applying voltage diminishes.Under the circumstances, slit width is preferably smaller or equal to 30 μ m.On the contrary,, then can not produce sufficient tilting electric field, can not give full play to effect of the present invention if slit width is too narrow and small.

Carry out the experiment that various variation does according to width and distinguish, can not carry out neat two farmlands orientation when slit width is 5 μ m slit.If the demonstration flickering that the instability because of the farmland causes can be felt in the unit of visualization this moment, the particularly direction that tilts from the visual angle.Instability can appear in the direction at lqiuid crystal molecule tipping when slit width is 10 μ m, but distinguishes that flickering sense when the visual angle tilts is in allowed band.And when slit width is 20 μ m, distinguish to form neat stable two farmlands orientation, even also imperceptible flickering during the inclination of visual angle.

In addition, the interval of the horizontal short direction of slit between the adjacent slots between upper/lower electrode is in order to ensure the viewing area of abundance, better when big slightly at interval, but in order to ensure the stability on two farmlands, and prevent to recognize when visual two domain patterns, it is narrow and small relatively good to try one's best at interval.Distinguish that according to this being carried out at interval the experiment that various variation does this slit separation can not obtain the stability on two farmlands when being 70 μ m, considering from the stable aspect on two farmlands preferably should be at interval at least smaller or equal to 60 μ m.And,, can not recognize two domain patterns when visual if smaller or equal to 60 μ m.In addition, consider aperture opening ratio, this minimum value at interval is preferably big as far as possible, so minimum value is preferably greater than and equals 10 μ m or more than or equal to slit width.

In addition, about the length of slit, be that starting point produces owing to demonstration shown in Figure 14 is bad with the slit edge, so preferred slit is long as far as possible, the marginal portion number is few as far as possible, but slit length is long more, and the area that is connected the transparency electrode of the horizontal short direction adjacent areas of slit diminishes.Because the resistance value of this part rises, produce appearance and show uneven problem.Distinguish that according to experimental result it is more suitable to the slit of 300 μ m length to have about 20 μ m to the slit of all lengths.And, distinguish that the suitable width (being 20 μ m) of the transparency electrode that is connected the horizontal short direction adjacent areas of slit is about 10 μ m to 50 μ m in Fig. 4.

The method that departs from of slit on the upper and lower base plate that is located at the slit longitudinally is described at last.Expression in the present embodiment just in time only departs from half the situation of repeat size of slit longitudinally, but is not limited thereto, and can think that the slit of upper and lower base plate can obtain same effect as long as depart from a little.But, consider from the symmetry aspect, will form symmetrical state when just in time only departing from half pitch, then be considered to the most stable.

Below, one side is embodiments of the invention 2 and reference example 2 relatively, and one side is elaborated.In reference example 2 and embodiment 2, the situation that the present invention is applicable to two farmland vertical orientating type LCD that segmentation shows is described.

(reference example 2)

Identical with reference example 1, has the slit that the part of transparency electrode is excised in the viewing area, (slot pattern and size were with example 1 was identical in the past at compulsory figure in described viewing area of the described slit alternate configurations of the described slit of a side's of a pair of transparency electrode with relative configuration transparency electrode and the opposing party's transparency electrode, with reference to Fig. 1) substrate on, apply vertical alignment layer (daily output chemical industry system SE-1211) and also carry out sintering.Then, to 2 blocks of substrates coating primary seal materials of such making, and dispersion diameter is the gap control material of 4 μ m.Make coincidence then, and make the primary seal material cured.And the liquid crystal of the birefraction 0.15 of injection メ Le Network corporate system is finished liquid crystal cells in the dummy cell that obtains.Paste viewing angle compensation plate (Sumitomo Chemical system VAC-180 film) and Polarizer according to structure shown in Figure 6 to this liquid crystal cells.Can make two farmland vertical orientating type LCD thus.

When this unit applies voltage and shows, when watching liquid crystal cells, vergence direction can see flickering.In addition, when under 85 ℃ of temperature this unit being switched on continuously, there do not have to produce a demonstration of seeing among two farmland TV-LCD to be bad.

Fig. 6 represents the structure of said units, (a) represents its sectional view, (b) absorption axes of expression Polarizer.In the figure, 11,12 expressions are Polarizer up and down, 13 expression viewing angle compensation films, 14 expression vertical orientating type LCD.The absorption axes of the Polarizer 11 of front face side (upside) is vertical with the absorption axes of the Polarizer 12 of rear side (downside).

When this unit applies voltage and shows, even when vergence direction is watched liquid crystal cells, also can't see the demonstration flickering at all.In addition, when under 85 ℃ of temperature this unit being switched on continuously, it is bad not to be created in the demonstration of seeing among two farmland TN-LCD of reference example 1.

[embodiment 3]

Below, the situation that the present invention is applicable to the two farmland TN-LCD of dot matrix type and two farmland vertical orientating type LCD is described.

Identical when showing with segmentation, utilization makes slit in the unswerving structure of longitudinally (with reference to Fig. 7) with depart from the structure (with reference to Fig. 8) of half pitch at longitudinally, make two farmland TN-LCD and two farmland vertical orientating type LCD respectively, confirm the flickering situation of demonstration, by making the structure that departs from half pitch, can reduce the demonstration flickering significantly.

Fig. 7 represents the slit 2 of the slit 1 of segmentation substrate and common substrate in the unswerving structure of longitudinally, and Fig. 8 represents that

slit

1,2 departs from the structure of half pitch at longitudinally.Among the figure 15 represents segmentation substrate (upside substrate), 16 expression common substrates.

Under the situation that dot matrix shows, only the part in comb electrode (segmented electrode) intersection of the comb electrode (common electrode) of transverse direction and longitudinal direction is paved with slit.Identical when showing with segmentation, slit in the viewing area alternate configurations between upper/lower electrode.Therefore, ascent direction of liquid crystal molecule (TN type) and toppling direction (vertical orientating type) alternately counter-rotating form two domain structures, the inclination of the liquid crystal molecule when the zonule by the slit clamping of viewing area applies voltage is counter-rotating alternately, so remedy viewing angle characteristic on the whole, reduce view angle dependency, therefore Visual Confirmation in any direction is all fine.

In addition, slit width and between upper/lower electrode adjacent slit separation, and the preferred value of slit length and situation about showing in the segmentation of embodiment 1 narration are identical.

It should be noted that at this slit at the end of the direction vertical with the longitudinally of the slit of a point, promptly keep to the side most (two ends) is located at electrode (being segmented electrode in Fig. 7, the 8) side with the longitudinally orthogonal configuration of slit.

[embodiment 4]

Below, the situation that the present invention is applicable to tft active matrix type liquid crystal display cells is described.

Fig. 9 is the vertical view of a plurality of pixel regions of expression tft active matrix type liquid crystal indicator.In addition, because active array type LCD popularized now, so its structure of simple declaration only.In the figure, transparent glass substrate (not shown) go up to form a plurality of use amorphous silicons etc. TFT element 20, use ITO etc. transparent pixels electrode 21, connect the source electrode S of TFT element 20 and source electrode line (signal wire) 22 and the gate line (sweep trace) 23 of gate electrode G respectively, form the structure of utilizing TFT element 20 to drive pixel electrode 21 by drain electrode D.On pixel electrode 21, be formed with not shown vertical alignment layer that has been implemented milled processed (vertical orientating type) or horizontal alignment film (TN type).

In addition, though in vertical view, omit because of being difficult to diagram, be formed with on the glass substrate of pixel electrodes configuration another across the liquid crystal layer glass substrate relative, at this substrate formation common electrode with this substrate.And with surface that common electrode contacts on, be formed with the vertical alignment layer (vertical orientating type) or the horizontal alignment film (TN type) that have been implemented milled processed.

Form the slit 24 that a plurality of usefulness diagram solid lines that the part of electrode is removed are represented in pixel electrodes 21.And, form the slit 25 that the part with electrode that dots is removed at the common electrode relative with pixel electrode 21.The slit 24 of upper and lower base plate and 25 is alternately arranged, and is located at slit on the common electrode and is configured to be located at relatively slit on the pixel electrode departs from half pitch at the slit longitudinally state.

Section with the direction of slit longitudinally quadrature among Fig. 9 is corresponding substantially with cross-section structure shown in Figure 10.Utilize the slit 24,25 of alternate configurations between this upper/lower electrode to produce the action effect identical with embodiment 1 and embodiment 2.

It should be noted that identically at this, will be located at the common electrode side with the slit of the end (two ends) of the direction of the longitudinally quadrature of the slit of a pixel electrode 61 with the dot matrix type liquid crystal display cells of embodiment 2.

Various embodiments of the present invention more than have been described, by adopting the structure of embodiment, can realize to prevent that the complicated and cost that designs from rising and show bad generation, even also can obtain the liquid crystal display cells of good viewing angle characteristic of the flickering sense of imperceptible demonstration when tilting at the visual angle.

In addition, active matrix structure also has above-mentioned other structures in addition, and the present invention also goes for other active matrix structure.The invention is not restricted to the embodiment with reference to above description of drawings, industry personnel can carry out various changes and improvement according to above-mentioned disclosure certainly.In this case, depart from the structure of half pitch, can suppress to show flickering by formation.

The invention effect

Any liquid crystal display cells that the present invention can corresponding segments shows, dot matrix shows. And And, go for using the active matrix liquid crystal display element of the switch elements such as TFT.

Claims

1. liquid crystal display cells, constitute by a pair of substrate holding liquid crystal with the transparency electrode that is formed with compulsory figure in order to show, it is characterized in that, the relative zone of transparency electrode on described a pair of substrate, on these a pair of substrate both sides' transparency electrode, have by excise the slit that its part forms with rectangular shape, be located at the described slit on the transparency electrode on a side the substrate and be located at described slit on the opposing party's the transparency electrode, in described relative zone, with the direction of the longitudinally quadrature of slit on alternately configuration, be located at the minor face of the slit on a side the transparency electrode and be located at the minor face of the slit on the opposing party's the transparency electrode, in the position that the direction vertical with the longitudinally of slit do not line up, be configured on the position of staggering mutually on the longitudinally of this slit.

2. liquid crystal display cells according to claim 1, it is characterized in that, be located at the minor face of the slit on a described side's the transparency electrode and be located at the minor face of the slit on the opposing party's the transparency electrode, in the position that the direction vertical with the longitudinally of slit do not line up, be configured in roughly departing from the position of half pitch mutually on the longitudinally of this slit.

3. liquid crystal display cells according to claim 1 and 2 is characterized in that, with slit width on the direction of the longitudinally quadrature of described slit more than or equal to 10 μ m and smaller or equal to 30 μ m.

4. liquid crystal display cells according to claim 1 and 2 is characterized in that, described by the interval between the adjacent slots in the slit of alternate configurations more than or equal to 10 μ m and smaller or equal to 60 μ m.

5. liquid crystal display cells according to claim 1 and 2 is characterized in that, described by the interval between the adjacent slots in the slit of alternate configurations more than or equal to described slit width and smaller or equal to 60 μ m.

6. according to any described liquid crystal display cells in the claim 1～5, it is characterized in that described liquid crystal display is that sectional type shows.

7. according to any described liquid crystal display cells in the claim 1～5, it is characterized in that described liquid crystal display is that dot matrix type shows.

8. according to any described liquid crystal display cells in the claim 1～5, it is characterized in that described liquid crystal display is the demonstration of having made up the both sides of sectional type demonstration and dot matrix type demonstration.

9. according to claim 7 or 8 described liquid crystal display cells, it is characterized in that described dot matrix type shows it is that simple matrix drives demonstration.

10. according to claim 7 or 8 described liquid crystal display cells, it is characterized in that described dot matrix type shows it is that driven with active matrix shows.

11. according to any described liquid crystal display cells in the claim 7～10, it is characterized in that, a point during described dot matrix type shown be positioned at slit with the end of the direction of slit longitudinally quadrature, be located at electrode side with the longitudinally orthogonal configuration of this slit.

12. liquid crystal display cells according to claim 10 is characterized in that, a pixel electrode during described driven with active matrix is shown be positioned at slit with the end of the direction of slit longitudinally quadrature, be located at the common electrode side.

13., it is characterized in that described liquid crystal is a TN type liquid crystal according to any described liquid crystal display cells in the claim 1～12.

14., it is characterized in that described liquid crystal is a vertical alignment-type liquid crystal according to any described liquid crystal display cells in the claim 1～12.