CN1223385A - Apparatus of liquid crystal display and method of manufacturing the same - Google Patents
Apparatus of liquid crystal display and method of manufacturing the same Download PDFInfo
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- CN1223385A CN1223385A CN 98116317 CN98116317A CN1223385A CN 1223385 A CN1223385 A CN 1223385A CN 98116317 CN98116317 CN 98116317 CN 98116317 A CN98116317 A CN 98116317A CN 1223385 A CN1223385 A CN 1223385A
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Abstract
The active matrix type liquid crystal display device in accordance with the present invention comprises a first substrate, a second substrate opposite to the first substrate, a first orientation film arranged in the second substrate side of the first substrate, and a second orientation film arranged in the first substrate side of the second substrate, liquid crystal constituent pinched between the first and second orientation films, multiple spacers sprinkled between the first and second substrates, multiple gate bus lines arranged in the shape of a matrix on the first substrate and multiple source bus lines, switch elements arranged on multiple pixel sections which multiple gate bus lines and multiple source bus lines come to surround, and a black matrix established on the second substrate. It is the manufacture method of active matrix liquid crystal display that there is no electrode for a display in the second substrate, and a black matrix is the shading section, which includes (a) charging the spacer; and (b) applying a potential from the terminal to the light shielding part by a terminal connected with the light shielding part for potential adjustment, and charging the light shielding part to the opposite polarity of the spacer.
Description
The present invention relates to the liquid crystal indicator of the active matrix mode used as the display device of the image of OA (office automation) machine etc. or Word message; More particularly, relate to such structure of display device, it can suppress to cause the picture element deterioration that light leak causes for the spacer that the dice spaced that makes the suitable homogeneous of maintenance between first and second substrate is provided with.
On insulating substrates such as glass, make thin film transistor (TFT) (following writing TFT) formation matrix form and, get a good chance of flat-panel monitor as high picture element with its active array type LCD (TFT-LCD) as on-off element.
Current requirement improves its display quality in TFT-LCD.For this reason, importantly should to make first substrate that is formed with rectangular TFT be array substrate and second substrate that is formed with color filter is that the dice spaced of color filter keeps suitably and homogeneous.This is by improving the distribution density of the spacer that is used for keeping dice spaced no doubt effective, but just cause also that thereupon spacer is intensive mutually, cause producing local gap fluctuation and making owing to the spacer that intersperses among the display part causes light leak that degradation influences significant problem under the contrast because of the spacer skewness.The orientation entanglement that particularly causes anaclasis or reflection that light is leaked towards periphery owing to spacer or locate at the spacer periphery because of liquid crystal produces light leak etc., and this all light leak that results from spacer has a significant impact for picture element.One of example that addresses the above problem is disclosed in the spy and opens in the flat 6-34982 communique.Figure 10 has illustrated the distributing method and the device thereof of spacer.Among Figure 10,17 is that spacer, 30 is that weighing portion, 31 is that insulator force feed flexible pipe, 32 also is insulator force feed flexible pipe.33 is that chamber, 34 is that gas tank, 35 is that insulation nozzle, 36 is that insulativity menifold, 38 is that ionization device, 39 is that objective table, 80 is a color-filtering sheet substrate.In Figure 10, though spacer is to intersperse among on the color-filtering sheet substrate of second substrate, spacer may be interspersed on the array substrate of first substrate equally.
Above-mentioned prior art proposes, and is charged through ionization device 38 being used for isolating the gas that material grain 17 is ejected in the chamber 33, makes to isolate to produce electric repulsion power between the material grain, in order to prevent the spacer assembly.This charged electric repulsion power of utilizing of substrate that makes makes the homodisperse method of spacer generally be called charged distributing method.
According to this prior art (charged distributing method),, highdensity spacer prevents from its assembly from can suitably and equably keep dice spaced by being spread out.But in this method, because spacer uniformly dispersing in the display surface of liquid crystal board, and along with the increase of scattering density, the caused light leak of spacer that is arranged in the liquid crystal board display part also increases, cause the reduction of display frame roughening and contrast and make the picture element of demonstration become bad, so can not obtain good demonstration.
The problem that occurs in the liquid crystal indicator that the present invention makes in view of above-mentioned prior art, so that the caused light leak of spacer that can prevent to be positioned at the liquid crystal indicator display part to be provided, and can be suitably be its purpose with the Liquid crystal disply device and its preparation method that keep dice spaced equably and can obtain good picture element.
The manufacture method of the active array type LCD of a kind of form of the present invention, wherein display device comprises: first substrate, second substrate relative with first substrate, be located at first oriented film in second substrate side of first substrate, be located at second oriented film in first substrate side of second substrate, be clipped in the liquid-crystal composition between first and second substrate, intersperse among a plurality of spacers between first and second substrate, on first substrate, be arranged to a plurality of the buses and the multiple source bus of rectangular, set on-off element and be located at the second on-chip black matrix" among each of a plurality of pixel portions that a plurality of buses and multiple source bus are surrounded; Do not have show electrode on second substrate, this black matrix" is a light-blocking part; Described manufacture method then comprises the steps:
(a) make spacer charged;
(b) ground connection that links to each other with above-mentioned light-blocking part is provided with current potential adjustment terminal, applies a current potential from this terminal to light-blocking part, by making on the light-blocking part band with the opposite polarity electric charge of spacer on light-blocking part configuration isolation thing selectively.
In the manufacture method of the active array type LCD that in the another kind of form of the present invention, relates to, make being partly with and the identical electric charge of aforementioned spacer polarity beyond the light-blocking part of above-mentioned second substrate.
In the manufacture method of the active array type LCD of the another kind of form of the present invention, the resistance value of above-mentioned light-blocking part is compared with other parts differed more than 5 figure places.
In the manufacture method of the active matrix type display relevant with another form of the present invention, this active matrix type display comprises: first substrate, second substrate relative with first substrate, be located at first oriented film on second substrate side of first substrate, be located at second oriented film on first substrate side of second substrate, be located in the liquid-crystal composition between first and second substrate, intersperse among a plurality of spacers between first and second substrate, on first substrate by a plurality of the buses and the multiple source bus of matrix-shaped configurations, set on-off element and be located at the second on-chip black matrix" among each of a plurality of pixel portions that surrounded by a plurality of buses and multiple source bus; On second substrate, show and use electrode, and a plurality of buses and multiple source bus are light-blocking part that described method then comprises the steps:
(a) make aforementioned spacer charged;
(b) current potential is set regulates and to use terminal with above-mentioned a plurality of the buses ground connection that links to each other with source bus, apply a current potential to light-blocking part, by making on the light-blocking part band and the opposite polarity electric charge of spacer configuration isolation thing selectively on light-blocking part from this terminal.
The manufacture method of the active array type LCD of another form according to the present invention makes the first on-chip part band beyond the above-mentioned light-blocking part with identical with spacer polarity.
The manufacture method of the active array type LCD of another form according to the present invention, the resistance value of above-mentioned light-blocking part is compared with other parts, differs more than 5 figure places.
The active array type LCD of another form of the present invention comprises first substrate, second substrate relative with first substrate, be located at first oriented film of second substrate side of first substrate, be located at second oriented film of first substrate side of second substrate, be located in the liquid-crystal composition between first and second substrate, intersperse among a plurality of spacers between first and second substrate, on first substrate, press a plurality of the buses and the source bus of matrix form configuration, set on-off element and be located at the second on-chip black matrix" among each of a plurality of pixel portions that a plurality of buses and source bus are surrounded; Do not show on this second substrate and use electrode, above-mentioned black matrix" is a light-blocking part, and disposes described spacer on this light-blocking part selectively.
The active array type LCD of another kind of form again according to the present invention, the resistance value of light-blocking part is compared with other parts on above-mentioned second substrate, differs more than 5 figure places.
The active array type LCD of another form of the present invention comprises first substrate, second substrate relative with first substrate, be located at first oriented film of second substrate side of first substrate, be located at second oriented film of first substrate side of second substrate, be located in the liquid-crystal composition between first and second substrate, intersperse among a plurality of spacers between first and second substrate, on first substrate, press a plurality of the buses and the multiple source bus of matrix form configuration, set on-off element and be located at the second on-chip black matrix" among each of a plurality of pixel portions that a plurality of buses and source bus are surrounded; Do not show on this second substrate and use electrode, above-mentioned a plurality of buses and source bus are light-blocking parts, dispose aforementioned spacer on this light-blocking part selectively.
The active type liquid crystal indicator of another form according to the present invention, the resistance value of above-mentioned light-blocking part is compared with other parts, differs more than 5 figure places.
In active array type LCD of the present invention, owing to be being used for keeping the spacer of dice spaced on light-blocking part, to make selectable arranged in high density, so do not have the light leak that causes because of spacer, also because can be suitably and keep dice spaced equably, so can obtain excellent display quality.
In addition, the manufacture method of active array type LCD of the present invention, also produce potential difference (PD), suppress to be used for keeping the spacer of dice spaced to be disposed on the light-blocking part selectively in the configuration on the display part by light-blocking part and the other parts that make first substrate or second substrate.
Fig. 2 and 3 explanations are made spacer of the present invention to select the principle of configuration on light-blocking part.In Fig. 2 and Fig. 3, be spacer intersperse among second substrate that is formed with color filter be on the color-filtering sheet substrate for example, but spacer is can intersperse among on any of first substrate or second substrate.In Fig. 2 and Fig. 3,17 expression spacers, 20 expression upper transparent glass substrates, 21 expressions are represented oriented films, 26 expression enclosing cover layers as black matrix" (BM), the 23 expression dyed layers, 24 of light-blocking part.In addition, spacer charged polarity can just can bear, but adopt the situation of positively charged in the present invention.
Make on the spacer positively charged among Fig. 2, make it to have positive charge by the objective table that is provided on the spacer dissemination apparatus on the upper transparent glass substrate 20, then regulating the terminal ground connection of usefulness by the film formed BM of conductive metal (black matrix") 21 by current potential.
Therefore, though being the power of relying on for support, spacer 17 drops on the glass substrate that is coated with oriented film, but since light-blocking part with electricity be positive polarity, spacer is disposed on the light-blocking part BM as shown in Figure 3 selectively and to high-density, each spacer is not assembled each other, and is difficult to drop on the display part.
In addition, for spacer is disposed on the light-blocking part BM effectively, preferably when scattering, strengthens spacer the BM of color filter and the potential difference (PD) of other parts.Therefore, preferably get the BM that makes color filter and the structure of resistance value difference more than 5 figure places of other parts.When above-mentioned difference when 5 figure places are following, spacer will be distributed to the display part and can not obtain effect of the present invention.
Fig. 1 is the cut-away section key diagram of liquid crystal indicator of the present invention, and Fig. 2 is expression spacer of the present invention is selected configuration principle on light-blocking part a key diagram, and Fig. 3 is expression spacer of the present invention is selected configuration principle on light-blocking part a key diagram; Fig. 4 is the plane key diagram that is used for the color-filtering sheet substrate of liquid crystal indicator of the present invention; The part amplification view of the color-filtering sheet substrate that Fig. 5 uses for liquid crystal indicator of the present invention; Fig. 6 is the key diagram of spacer distributing method of the present invention and related device thereof; Fig. 7 is the plane key diagram of the array substrate used of liquid crystal indicator of the present invention; Fig. 8 is the key diagram of spacer distributing method of the present invention and related device thereof; Fig. 9 is the cut-away section key diagram of liquid crystal indicator of the present invention, and Figure 10 is the spacer distributing method of prior art and the key diagram of related device thereof, and Figure 11 is the cut-away section key diagram that liquid crystal indicator is arranged earlier as comparative example.
Form of implementation of the present invention is described with reference to the accompanying drawings.Use among the figure with show bright prior art in the identical label of label of figure, show with prior art in figure in identical or suitable parts.
Form of implementation 1
Second substrate that Fig. 4 uses for the liquid crystal indicator of form of implementation 1 of the present invention is the planimetric map of color-filtering sheet substrate, and Fig. 5 is the part enlarged drawing of substrate shown in Figure 4.In Fig. 4 and Fig. 5,21 expression light-blocking part BM, each dyed layer of 23 expressions blue (B), green (G) or red (R); the enclosing cover layer of 26 expression polyacrylic diaphragms; the portion of terminal (current potential is regulated and used terminal) of electric charge is taken out in 27 expressions, the peripheral black matrix" of 51 expressions, and 52 show non-coating part.
Among the present invention, form BM21 on the Metal Cr film, pressing grid pattern by photoetching process on the transparent glass substrate.The ground connection that links to each other on BM21 is provided with electric charge and takes out terminal 27.Be covered with chromatograph and BM has formed outercover film, on outercover film, form oriented film (second oriented film) again, take out on the terminal at electric charge this film then is not set.Like this, be the part that does not have outercover film and oriented film at 4 corner parts of transparent substrate, take out terminal 27 and be connected via electric charge with BM21.Take out terminal 27 from electric charge and apply the current potential that voltage is adjusted light-blocking part, make produce potential difference (PD) with other parts after, go up in BM21 by scattering charged spacer and to select the configuration isolation thing.
The following describes the manufacture method of above-mentioned color-filtering sheet substrate.On transparent glass substrate, form the metal film (thick 300nm) of Cr, produce cancellate pattern and form BM21 through photoetching process by sputtering method.On this peristome, thick red, the blue or green dyed layer 23 of 1.5 μ m is set with the pigment-dispersing type resist.Dyed layer disposes BM between of all kinds, by indigo plant, BM, green, BM, red, BM, indigo plant, BM, green, BM, red such arranged in order.And then be coated with diaphragm enclosing cover layer 26 with spin-coating method thereon with acrylic resin, make color-filtering sheet substrate.Again thereon layer form thick 100nm Kapton as oriented film after, on the surface of this oriented film, apply the friction directional process.In addition, although outside Cr, can adopt any material, but at this moment preferably adopt the material lower that makes BM as the BM material than resistance ratio other parts with being in the light property.
On second substrate of as above making, scatter spacer.
Fig. 6 illustrates the distributing method and the device thereof of spacer.In Fig. 6,30 denotion amount portions, 31 is insulator force feed flexible pipe, and 32 also is insulator force feed flexible pipe, and 33 is the chamber, and 34 is gas tank, and 35 is insulation nozzle, and 36 is the insulator menifold, and 37 supply with for electric charge and use pin, and 38 is ionization device, and 41 is electric charge supply lead.Be with the spacer 17 of positive polarity electric charge from the bottom ejection of nozzle 35; BM supplies with pin 37 ground connection by electric charge, and the positive charge of identical polar is arranged with spacer on the color-filtering sheet substrate 80 that is coated with oriented film 24 by objective table 39 in addition.
The pressure of the air that extrudes is 2kg/cm
2, temperature is 50 ℃ in the device, and the ejection time got 15 seconds, and it is the square of 30cm that glass substrate adopts the length of side, and objective table 39 is given+current potential of 100V.
When measuring the resistance value of used glass substrate is 10
18More than the Ω.Equally, measuring the result who forms the resistance value of BM on the color-filtering sheet substrate is 10 Ω.
The following describes the manufacture method of array substrate.Formed the metal film of the thick 250nm that is made up of Cr etc. by sputtering method on transparent glass substrate, form two with common patterning method then and be in right comb-type electrode, electrode width is 8 μ m, electrode gap 12 μ m.Form a plurality of buses and multiple source bus again.A plurality of buses are parallel to each other and keep certain intervals, multiple source bus also to be parallel to each other and keep certain intervals, source bus then with the door bus by crossing at right angle.Near each point of crossing of door bus and source bus, the TFT as on-off element is formed rectangular making array substrate.Comb-type electrode on the covering array substrate and on-off element etc., the polyimide that has formed thick 100nm applies the friction directional process as behind the oriented film (second oriented film) on the surface of this oriented film.In face, in the response type liquid crystal indicator, the demonstration electrode is not set on color-filtering sheet substrate (second substrate).The liquid crystal indicator of made is to set pair of electrodes on same substrate at a certain distance, by between this is to electrode, applying the electric field substantially parallel, make the liquid crystal molecule that is orientated in a certain direction in substrate surface, make response type liquid crystal indicator in the face of substantially parallel response with substrate surface.The color filter substrate that will carry out second substrate of aforementioned spacer distribution is that array substrate overlaps with first substrate, liquid-crystal composition is held between color-filtering sheet substrate and the array substrate has made liquid crystal indicator.At this moment, first oriented film is positioned at second substrate side of first substrate, and second oriented film is positioned at first substrate side of second substrate.
Fig. 1 is the cut-away section key diagram of pixel portion of the liquid crystal indicator of the invention process form 1.
10 is the bottom transparent glass substrate; 11 is source bus; 16 and 24 is oriented films of Kapton; 17 is spacer; 20 is the upper transparent glass substrate; 21 is the BM that the metal film of Cr is formed the clathrate pattern by photoetching process; 23 for dyed layer and be respectively the three primary colors dyed layer of red (R), green (G) or blue (B); 25 for liquid-crystal composition is a liquid crystal molecule, and 26 is the diaphragm enclosing cover layer of acrylic resin, and 40a is first comb-type electrode; 40b is second comb poles; 70 is array substrate, and 80 is color-filtering sheet substrate, and 90 is polaroid.
In this form of implementation, for the spacer that keeps dice spaced mainly to use is disposed on the BM21 selectively.
Like this, in this liquid crystal indicator, be that the array substrate and second substrate are the dice spaced of color-filtering sheet substrate, even there is not spacer basically in the distribution density height of spacer yet in the display part in order suitably and equably to keep first substrate.So can obtain few and the liquid crystal indicator that display quality is high of the light leak that causes by spacer.Have again, in this form of implementation, promptly can obtain the display quality higher, and under the condition that a large amount of spacers are scattered, also do not have the spacer configuration in the display part basically than prior art with common spacer dispersion volume.So can not take place to reduce display quality because of spacer periphery light leak causes contrast.
Comparative example 1
The following describes the comparative example of liquid crystal indicator of the present invention.
In this comparative example, have with aforementioned form of implementation 1 in the color-filtering sheet substrate and the array substrate of the identical making of liquid crystal indicator.But in this comparative example, scatter, unlike the invention process form, make BM charged, only make spacer positively charged and objective table ground connection by spacer that charged distribution method carried out.Other structure is identical with form of implementation 1.
Figure 11 is the cross sectional illustration figure of the liquid crystal indicator of comparative example 1 of the present invention.Among Figure 11; 10 is the bottom transparent glass substrate; 11 is source bus; 16 and 24 is that the oriented film, 17 of Kapton is for spacer; 20 is the upper transparent glass substrate; 21 for making the Cr metal film form the BM of clathrate pattern with photoetching process; 23 for dyed layer and be respectively that the three primary colors dyed layer, 25 of red (R), green (G) or blue (B) is liquid crystal molecule; 26 is the diaphragm enclosing cover layer of acrylic resin; 70 is the array substrate of first substrate; 80 is the color-filtering sheet substrate of second substrate, and 90 is polaroid.
When observing the liquid crystal indicator of this comparative example, the display parts that are positioned at more than half of spacer on the color-filtering sheet substrate, the result reduces display quality because of the light leak that spacer causes, and can not obtain good demonstration.
Form of implementation 2
First substrate that Fig. 7 uses for the liquid crystal indicator of form of implementation 2 of the present invention is the planimetric map of array substrate.
Among Fig. 7,11 is source bus, and 12 is the door bus, and 28 is electric charge taking-up portion, and 29 is short-circuited conducting sleeve.
In this form of implementation, a plurality of the buses 12 that are configured to matrix form on the array substrate 70 are light-blocking part with source bus 11.Make a source bus and a door bus become equipotential short-circuited conducting sleeve for preventing in the manufacture process to destroy signal wire and TFT etc., being provided with because of the static discharge of static between each signal wire etc.By this short-circuited conducting sleeve, on each of source bus and door bus or be that the ground connection that links to each other on both is provided with electric charge taking-up portion 28.Apply voltage with source bus for the door bus from electric charge taking-up portion 28, adjust the current potential on be in the light department's bus and the source bus, make with other parts on the generation current potential scatter charged spacer, thus spacer 17 is disposed on the light-blocking part selectively.
The manufacture method of above-mentioned array substrate now is described.
After forming metal films such as Cr, Ta, Ti by sputtering method on the transparent glass substrate, form two connecting lines of forming right comb-type electrode 40, source bus 11, a bus 12, short-circuited conducting sleeve 29 etc. mutually by common patterning method again.Form the TFT (not shown) as on-off element rectangular again as array substrate.And then the Kapton that forms thick 100nm is as oriented film 16, and makes the directional process based on friction in its surface.In addition, the connecting line material of source bus, door bus, short-circuited conducting sleeve etc. is just available other any material with electric conductivity outside Cr, Ta, Ti etc. no doubt, but at this moment wishes low than resistance ratio other parts of connecting line.
On first substrate of making like this, scatter spacer.
Fig. 8 illustrates the distributing method and the related device thereof of spacer.Among Fig. 8,31 be insulator force feed flexible pipe, 32 also for insulator force feed flexible pipe, 33 for the chamber, 34 for gas tank, 35 for insulation nozzle, 36 for the insulator menifold, 37 for electric charge supply with pin, 38 for ionization device, 41 be electric charge supply distribution.Be with the spacer 17 of positive polarity electric charge from the bottom ejection of nozzle 35, be connected with light-blocking part by short-circuited conducting sleeve (figure does not show) with pin 37 from the electric charge supply, and make the positive charge that has on the array substrate 70 that is coated with oriented film 16 with the same polarity of spacer by stage portion 39.
In this form of implementation, carried out the distribution of spacer by charged distribution method with liquid crystal indicator the same terms of aforementioned form of implementation 1.But be that spacer is interspersed among on the light-blocking part of substrate with selecting configuration in this form of implementation.The resistance value that determines used glass substrate is 10
18More than the Ω.Simultaneously, determining the resistance value that connects the distribution of going up source bus, door bus from the light-blocking part short-circuited conducting sleeve of array substrate is 3M Ω.
Fig. 9 is the sectional view of the liquid crystal indicator of form of implementation 2 of the present invention.Among Fig. 9,10 for the bottom transparent glass substrate, 11 for source bus, 16 and 24 for the oriented film of Kapton, 17 for spacer, 20 for the upper transparent glass substrate, 21 for the BM of the grid pattern shape of Cr metal film through being photo-etched into, 23 for dyed layer and be respectively red (R), green (G) or blue (B) the three primary colors dyed layer, 25 for liquid crystal molecule, 26 for the enclosing cover layer of acrylic resin diaphragm, 70 be that array substrate, 80 is that color filter substrate, 90 is a polaroid.The liquid crystal indicator of making is, on same substrate, be provided with pair of electrodes at a certain distance, and between this is to electrode, applied the electric field substantially parallel with substrate surface, make the liquid crystal molecule that is orientated by certain orientation response type liquid crystal indicator in the face of the parallel response of substrate surface therewith thus.
In this form of implementation, the spacer that is used for keeping dice spaced be disposed at array substrate 70 selectively light-blocking part promptly by on a plurality of the buses 12 of cells arranged in matrix and the source bus 11.
Thereby in this liquid crystal indicator, being used for keeping suitably and equably first substrate is that second substrate is the spacer of the two dice spaced of color filter substrate on the array chip, also is not present in the display part basically even scatter the density height.So can obtain the few high liquid crystal indicator of display quality of light leak that causes by spacer.At this, just can obtain than prior art by common spacer dispersion volume is high display quality, even and scatter spacer more, they can not be configured in the display part basically yet.As mentioned above, can not take place to make the display quality step-down because of spacer periphery light leak causes contrast decline.
Comparative example 2
The following describes comparative example 2 with respect to liquid crystal indicator of the present invention.
This comparative example has color filter substrate and the array substrate of making by liquid crystal indicator the same manner in the aforementioned form of implementation 2.But when in this comparative example, scattering spacer, be not as the invention process form 2, to make light-blocking part charged and only make spacer positively charged, and to make objective table be ground connection with charged distribution method.
Observe the liquid crystal indicator of this comparative example, the spacer on the array substrate has the display parts that are positioned at more than half, and the light leak that the result causes because of spacer reduces display quality, can not obtain good demonstration.
Comparative example 3
Comparative example 3 with respect to liquid crystal indicator of the present invention is described again.
In this comparative example, scatter spacer by making the identical charged distribution method of liquid crystal indicator with aforementioned form of implementation 1.But in this comparative example, on the color-filtering sheet substrate that scatters spacer, do not adopt metal film such as Cr to be used as BM but adopt the dielectric film of black organic pigment.The resistance value of measuring the BM of color-filtering sheet substrate is 10
11Ω.
Observe the liquid crystal indicator of this comparative example, the display part that is positioned at over half of spacer on the color-filtering sheet substrate, the result descends because of the spacer light leak causes display quality, can not obtain good demonstration.
A kind of manufacture method of active array type LCD of form according to the present invention, wherein liquid crystal indicator comprises first substrate, second substrate relative with first substrate, be located at first oriented film of second substrate side of first substrate, be located at second oriented film of first substrate side of second substrate, be folded in the liquid-crystal composition between first and second substrate, intersperse among a plurality of spacers between first and second substrate, on first substrate by a plurality of the buses and the multiple source bus of matrix-shaped configurations, at a plurality of pixel portions that a plurality of buses and source bus surround set on-off element among each, and be located at the second on-chip black matrix", do not show in above-mentioned second substrate and use electrode, above-mentioned black matrix" is light-blocking part; Described manufacture method then comprises the steps:
(a) make above-mentioned spacer charged;
(b) ground connection that links to each other with aforementioned light-blocking part is provided with current potential and regulates and to use terminal, and from then on terminal applies current potential to light-blocking part, has with the opposite polarity electric charge of spacer on light-blocking part configuration isolation thing selectively by making light-blocking part; Owing to be configuration isolation thing selectively on light-blocking part, so be used for suitably spacer with the interval that keeps first substrate and relative second substrate equably, even scatter the density height, there is not the configuration isolation thing on the display part basically yet, thereby can not have the effect that can obtain the high liquid crystal indicator of display quality because of spacer periphery light leak reduces contrast.
The manufacture method of the active array type LCD of another form of the present invention, be by making being partly with and the identical electric charge of aforementioned spacer polarity beyond the aforementioned light-blocking part, even so scatter spacer in a large number, do not have the spacer configuration on the display part yet, so just can reduce the contrast reduction that causes because of spacer periphery light leak effectively and can make the high liquid crystal indicator of display quality.
The present invention is the manufacture method of the active array type LCD of another kind of form again, be the resistance value of above-mentioned light-blocking part to be compared with other parts differ more than 5 figure places, even there is a large amount of spacers to scatter like this, but do not have the spacer configuration on the display part, the peripheral light leak that so just can reduce effectively because of spacer causes the reduction of contrast and can make the high liquid crystal indicator of display quality.
In the manufacture method of the active array type LCD of another form of the present invention, this liquid crystal indicator comprises first substrate, second substrate relative with first substrate, be located at first oriented film on second substrate side of first substrate, be located at second oriented film of first substrate side of second substrate, be located in the liquid-crystal composition between first and second substrate, intersperse among a plurality of spacers between first and second substrate, on first substrate, press a plurality of the buses and the multiple source bus of matrix form configuration, at a plurality of pixel portions that a plurality of buses and source bus surround set on-off element among each, and be located at the second on-chip black matrix", show on this second substrate and use electrode, and a plurality of buses and source bus are light-blocking part; Described manufacture method comprises the steps:
(a) make above-mentioned spacer charged;
(b) current potential is set regulates and to use terminal with aforementioned a plurality of the buses ground connection that links to each other with source bus, apply current potential to light-blocking part, make light-blocking part have the polarity electric charge opposite and make spacer be disposed on the light-blocking part selectively with spacer from this terminal; Like this, be used for suitably and the spacer that keeps first substrate with relative second dice spaced equably, even scatter the density height, can not be disposed in the display part basically yet, also can make the high liquid crystal indicator of display quality and can reduce effectively because of spacer periphery light leak causes the contrast reduction.
The manufacture method of the active array type LCD of a form again according to the present invention, it is by making the first on-chip electric charge that is partly with above-mentioned spacer identical polar beyond the above-mentioned light-blocking part, even be scattered with a large amount of spacers, do not have spacer configuration on the display part yet, cause contrast to descend and can make the high liquid crystal indicator of display quality thereby can reduce effectively because of spacer periphery light leak.
The manufacture method of the active array type LCD of another form according to the present invention, it is compared with other parts by the resistance value that makes above-mentioned light-blocking part and differs more than 5 figure places, even scatter spacer in a large number, do not have spacer configuration in the display part yet, cause contrast to descend and can make the high liquid crystal indicator of display quality thereby can reduce effectively because of spacer periphery light leak.
The active array type LCD of another form according to the present invention, this liquid crystal indicator comprises first substrate, second substrate relative with first substrate, be located at first oriented film on second substrate side of first substrate, be located at second oriented film on first substrate side of second substrate, be held on the liquid-crystal composition between first and second substrate, intersperse among a plurality of spacers between first and second substrate, on first substrate, press a plurality of the buses and the multiple source bus of matrix form configuration, at a plurality of pixel portions that a plurality of buses and source bus surround set on-off element and be located at the second on-chip black matrix" among each; Do not show that on above-mentioned second substrate black matrix" is a light-blocking part with electrode; Because configuration isolation thing selectively on this light-blocking part, even so be used for suitably scattering the density height with the spacer that keeps first substrate with the dice spaced of relative second substrate equably, can not be disposed at basically in the display part yet, can reduce effectively thus because of spacer periphery light leak and cause contrast to descend and can make the high liquid crystal indicator of display quality.
The active array type LCD of another form according to the present invention, because it makes the resistance value of light-blocking part on above-mentioned second substrate compare with other parts and differs more than 5 figure places, promptly be to be scattered with a large amount of spacers but on the display part, also not have the spacer preparation.Thereby can reduce effectively because of spacer periphery light leak and cause contrast to descend and can make the high liquid crystal indicator of display quality.
The active array type LCD of another kind of form again according to the present invention, it comprises first substrate, second substrate relative with first substrate, be located at first oriented film on second substrate side of first substrate, be located at second oriented film on first substrate side of second substrate, be located in the liquid-crystal composition between first and second substrate, intersperse among a plurality of spacers between first and second substrate, on first substrate, press a plurality of the buses and the multiple source bus of matrix form configuration, at a plurality of pixel portions that a plurality of buses and source bus are surrounded set on-off element and be located at the second on-chip black matrix" among each; Do not show on this second substrate and use electrode, above-mentioned a plurality of buses and source bus are light-blocking part; Owing on this light-blocking part, disposed spacer selectively, even thereby be used for suitably scattering the density height with the spacer that keeps first substrate and the relative second substrate interbody spacer equably and also can be configured to display part basically, thereby the light leak that can reduce solid spacer periphery effectively causes the reduction of contrast and can make the high liquid crystal indicator of display quality.
The liquid crystal indicator of the active array type of another kind of form again according to the present invention, because the resistance value of above-mentioned light-blocking part is compared with other parts and is differed more than 5 figure places, even thereby a large amount of spacer that scatters can not be configured in the display part yet, cause contrast to reduce and can make the high liquid crystal indicator of display quality thereby can reduce effectively because of spacer periphery light leak.
Claims (10)
1. the manufacture method of active array type LCD, described liquid crystal indicator comprises first substrate, second substrate relative with first substrate is located at first oriented film on second substrate side of first substrate, be located at second oriented film on first substrate side of second substrate, be held on the liquid-crystal composition between first and second substrate, intersperse among a plurality of spacers between first and second substrate, on first substrate by a plurality of the buses and the multiple source bus of matrix shape configuration, set on-off element and be located at the second on-chip black matrix" among each of a plurality of pixel portions that a plurality of buses and source bus surround; Do not show on second substrate and use electrode, above-mentioned black matrix" is a light-blocking part;
Comprise following operation:
(a) make spacer charged
(b) ground connection that links to each other with aforementioned light-blocking part is provided with current potential and regulates and to use terminal, applies current potential from this terminal to light-blocking part, by making light-blocking part have the polarity electric charge opposite with spacer spacer is disposed on the light-blocking part selectively.
2. the manufacture method of the described active array type LCD of claim 1, it is characterized in that making beyond the light-blocking part of above-mentioned second substrate to be partly with polarity identical with spacer.
3. the manufacture method of claim 1 or 2 described active array type LCDs, the resistance value that it is characterized in that above-mentioned light-blocking part is compared with other parts and is differed more than 5 figure places.
4. the manufacture method of active array type LCD, described liquid crystal indicator comprises first substrate, second substrate relative with first substrate, be located at first oriented film on second substrate side of first substrate, be located at second oriented film on first substrate side of second substrate, be held on the liquid-crystal composition between first and second substrate, intersperse among the spacer between first and second substrate, on first substrate, press a plurality of the buses and the multiple source bus of matrix form configuration, set on-off element and be located at the second on-chip black matrix" among each of a plurality of pixel portions that a plurality of buses and source bus surround; Show on this second substrate and use electrode, and a plurality of buses and source bus are light-blocking parts;
Comprise following operation:
(a) make above-mentioned spacer charged;
(b) current potential is set regulates and to use terminal with above-mentioned a plurality of the buses ground connection that links to each other with source bus, apply current potential to light-blocking part, have polarity and the opposite polarity electric charge of spacer, spacer is disposed on the light-blocking part selectively by making light-blocking part by this terminal.
5. the manufacture method of the described active array type LCD of claim 4 is characterized in that making the above-mentioned light-blocking part first on-chip polarity electric charge identical with above-mentioned spacer that be partly with in addition.
6. the manufacture method of the described active array type LCD of claim 5 is characterized in that the resistance value of above-mentioned light-blocking part compares with other parts, differs more than 5 figure places.
7. active array type LCD, comprise first substrate, second substrate relative with first substrate, be located at first oriented film on second substrate side of first substrate, be located at second oriented film on first substrate side of second substrate, be held on the liquid-crystal composition between first and second substrate, intersperse among a plurality of spacers between first and two substrates, on first substrate by a plurality of the buses and the multiple source bus of matrix shape configuration, set on-off element and be located at the second on-chip black matrix" among each of a plurality of pixel portions that a plurality of buses and source bus are surrounded; Do not show on this second substrate that using electrode, black matrix" is light-blocking part; On this light-blocking part, be provided with spacer selectively.
8. the described active array type LCD of claim 7, the resistance value that it is characterized in that light-blocking part on aforementioned second substrate is compared with other parts and is differed more than 5 figure places.
9. active array type LCD comprises first substrate, second substrate relative with first substrate, be located at first oriented film on second substrate side of first substrate, be located at second oriented film on first substrate side of second substrate, be held on the liquid-crystal composition between first and second substrate, intersperse among a plurality of spacers between first and second substrate, on first substrate, press a plurality of the buses and the multiple source bus of matrix form configuration, set on-off element and be located at the second on-chip black matrix" among each of a plurality of pixel portions that a plurality of buses and source bus are surrounded; Do not show on this second substrate and use electrode, above-mentioned a plurality of buses and source bus are light-blocking parts; Spacer is being set on this light-blocking part selectively.
10. the described active array type LCD of claim 9, the resistance value that it is characterized in that above-mentioned light-blocking part is compared with other parts and is differed more than 5 figure places.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98116317 CN1223385A (en) | 1998-01-16 | 1998-07-17 | Apparatus of liquid crystal display and method of manufacturing the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6252/98 | 1998-01-16 | ||
| CN 98116317 CN1223385A (en) | 1998-01-16 | 1998-07-17 | Apparatus of liquid crystal display and method of manufacturing the same |
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| Publication Number | Publication Date |
|---|---|
| CN1223385A true CN1223385A (en) | 1999-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98116317 Pending CN1223385A (en) | 1998-01-16 | 1998-07-17 | Apparatus of liquid crystal display and method of manufacturing the same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1550845B (en) * | 2003-05-15 | 2010-04-28 | 精工爱普生株式会社 | Electrooptical device ,electronic device ,and electrooptical device manufacturing method |
| CN1550844B (en) * | 2003-05-15 | 2010-05-12 | 精工爱普生株式会社 | Electrooptical device ,electronic device ,and electrooptical device manufacturing method |
-
1998
- 1998-07-17 CN CN 98116317 patent/CN1223385A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1550845B (en) * | 2003-05-15 | 2010-04-28 | 精工爱普生株式会社 | Electrooptical device ,electronic device ,and electrooptical device manufacturing method |
| CN1550844B (en) * | 2003-05-15 | 2010-05-12 | 精工爱普生株式会社 | Electrooptical device ,electronic device ,and electrooptical device manufacturing method |
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