as one of the concrete examples , a tn - type liquid crystal display device produced by using mixed lb film will be described first . fig1 is a schematic diagram of a liquid crystal display device of this invention . in fig1 reference numerals 11 , 12 , 13 , 14 , 15 and 16 indicate a substrate , transparent electrode layer , dielectric film , alignment controlling film , sealing resin and liquid crystal layer , respectively . as the method by which a monomolecular film is transferred to form on a substrate , the langmuir - blodgett method has been generally used in the past and the film formed by this method is called an lb film . fig2 shows the lb method schematically . in fig2 reference numerals 21 , 22 , 23 , 24 and 25 indicate a glass substrate , monomolecular film transferred to form , the direction to be lifted , monomolecular film overspread on the surface of water , and water , respectively . at first , a mixture of a compound having an ability to form a monomolecular film and a liquid crystal is melted into an organic solvent and then droplets of the solution thus obtained is dropped into water to overspread said mixture on the surface thereof . next , the monomolecular film 24 of said mixture overspread on the surface of water is compressed until a specified surface pressure is attained thereby to make a so - called solid film . further , while the surface pressure of said monomolecular film 24 over - spread on the surface of water is being held constant so as not to destroy the solid state thereof , the glass substrate 21 having a specific pattern of a transparent electrode made of indium and tin oxide ( ito electrode ) formed in advance is moved up and down across said monomolecular film 24 overspread on the surface of water thereby transferring it to form on the surface of the substrate . by changing the number of times of going across the surface of the water , lamination can be made as desired . fig3 shows a laminated film formed on the surface a substrate by the lb method . in fig3 reference numerals 31 , 32 and 33 indicate a part where not yet laminated , part where lamination was already made and the direction to be lifted , respectively . also , one end of a transparent electrode has the part where it is not yet laminated 31 left to make sure of electrical conductivity . in addition , it permits dielectric thin film made of , for example , silicon oxide to be formed on ito electrode in advance and the lb film is laminated thereon . two glass plates each having been formed lb film as the alignment controlling film by the above - mentioned method are held so that the surfaces on which the lb films are formed may confront each other and then they are adhered . fig4 shows a twisted - nematic ( tn ) type liquid crystal cell obtainable in accordance with this invention . in fig4 reference numerals 41 , 42 , 43 , 44 and 45 indicate an upper substrate , lower substrate , the direction in which the upper substrate is lifted , the direction in which the lower substrate is lifted , and a sealing resin , respectively . namely , as shown in fig4 on the four sides excepting a part of one side of one of the two glass substrates is printed an acid anhydride setting epoxy resin composition dispersedly having a spacer with a specified diameter thereby to form the sealing resin 45 . the composition thus printed is cured by heating at 140 ° c . for three hours under the application of a pressure , thus the two glass substrates being adhered . a set of the two glass plates thus adhered is called a cell and a liquid crystal material is injected through this opening thereinto under a reduced - pressure condition . after injection has been completed , the opening is sealed using an acid anhydride setting epoxy resin composition , thus the liquid crystal cell of this invention being completed . as the compound having an ability to form a monomolecular film as shown above , so - called amphipathic materials which have the hydrophilic and hydrophobic properties in combination , more concretely , alcohol having a long - chain alkyl with a carbon number of 16 to 22 such as , for example , stearic acid ( metallic salts ) generally used for forming lb film , carboxylic acid , metallic salt and their derivatives , or polyimide resin having a long - chain alkyl substituent such as , for example , those shown in the japanese patent application laid - open nos . 62 - 61673 and 62 - 129317 can be used singly or combinedly . in addition , from the viewpoint of heat resistance and stability of a film to be formed , it is preferable to use those having a polymeric compound as the main component , particularly , either a polyamide compound having a long - chain alkyl substituent in its side chain , or a compound having a long - chain alkyl ester unit of polyamic acid is most preferable . in addition , as the liquid crystal to be mixed , liquid crystals such as , for example , schiff &# 39 ; s base , azo , azoxy , biphenyl , cyclohexane , cyclohexane carboxylphenyl ester , phenyl cyclohexane , biphenyl cyclohexane , pyrimidine , dioxane , thioester , diester , terphenyl and cinnamonitryl system ones can be used singly or combined to make a mixed liquid crystal . a liquid crystal display device using a mixed lb film containing liquid crystal as one component , as shown above , as the alignment controlling film exhibits such a property that the molecular alignment of liquid crystal can be provided without being subjected to the rubbing process . furthermore , as compared with the case that lb film is used singly , mixed use of liquid crystal materials make it possible to further largely improve the molecular alignment property , outstandingly decrease the unevenness of alignment and provide a high quality display characteristic . hereinafter , examples of a twisted nematic ( tn ) type liquid crystal display device in accordance with this invention will be described first . an ito electrode having a thickness of 200 nm was evaporated in vacuum using a pattern - formed mask on one side of a glass plate of 60 mm × 50 mm in size . next , a silicon oxide film having a thickness of 100 nm was formed on the ito electrode as a dielectric layer by the vacuum evaporation coating technology . on the other hand , a mixture of a polyimide precursor ( pip ) obtained by reacting an acidic chloride of pyromellitic acid distearyl ester with 4 , 4 &# 39 ;- diaminodiphenyl ether and a liquid crystal ( melk &# 39 ; s product - trade - name as zli 3220 ) at a ratio of 1 : 1 is melted into a mixed solvent of dimethyl - acetoamide and chloroform . using the solution thus obtained , a mixed lb film of a pip and liquid crystal was laminated in five layers through the above - mentioned method on the glass plate having said ito electrode evaporatedly formed . two glass plates processed in the same manner were prepared and a cell was , as shown in fig4 constructed so as to make the lifting directions of the plates during the formation of lp film a right angle with each other . on one of the two glass plates was printed an acid anhydride setting epoxy resin composition dispersedly having glass fibers each being 7 μm in diameter at a width of 1 mm peripherally on the four sides thereof excepting one side which has a part of 5 mm long to be left unprinted at the central portion thereof . next , the two plates were held , as shown in fig1 so as to have the electrode surfaces confronted to each other and a pressure was applied thereon at 150 ° c . for one hour thereby to undergo a curing adhesion . after adhesion , a liquid crystal material ( melk &# 39 ; s zli 3225 ) was injected from said opening thereinto under the application of a reduced - pressure . after injection , the opening was sealed with a commercially available acid anhydride setting epoxy resin composition , thus so - called twisted nematic ( tn ) type liquid crystal cell being completed . the tn - type liquid crystal cell thus completed exhibited an outstanding molecular alignment condition with no unevenness . ## str1 ## using a mixed lb film of a polyimide isoindroquinazolinedione precursor ( piiqp ) obtained by reacting an oxide chloride of pylomellitic acid distearyl ester with 2 , 5 - diaminobenzamide , pip and liquid crystal ( melk &# 39 ; s zli 3220 ) at a ratio of 1 : 1 : 1 , a tn - type liquid crystal cell was prepared in the same way as in example a1 . the cell thus obtained exhibited an outstanding molecular alignment condition with no unevenness . ## str2 ## using a mixed lb film of a pip , stearyl alcohol and liquid crystal ( melk &# 39 ; s zli 3220 ) at a ratio of 1 : 1 : 1 , a tn - type liquid crystal cell was prepared in the same way as in example a1 . the cell thus obtained exhibited an outstanding molecular alignment condition with no unevenness . using a mixed lb film of a piiqp , pip , stearyl alcohol and liquid crystal ( melk &# 39 ; s zli 3220 ) at a ratio of 1 : 1 : 1 : 1 , a tn - type liquid crystal cell was prepared in the same way as in example a1 . the cell thus obtained exhibited an outstanding molecular alignment condition with no unevenness . using a mixed lb film of a pip and liquid crystal ( melk &# 39 ; s zli 3220 ) at a ratio of 1 : 1 , a tn - type liquid crystal cell was prepared in the same way as in example a1 . the cell thus obtained exhibited an outstanding molecular alignment condition with no unevenness . using a mixed lb film of a pip , stearyl alcohol and liquid crystal ( melk &# 39 ; s zli 3489 ) at a ratio of 1 : 1 : 1 , a tn - type liquid crystal cell was prepared in the same way as in example a1 . the cell thus obtained exhibited an outstanding molecular alignment condition with no unevenness . using a mixed lb film of a pip , stearyl alcohol and liquid crystal ( melk &# 39 ; s zli 3489 ) at a ratio of 1 : 1 : 1 , a tn - type liquid crystal cell was prepared in the same way as in example a1 . the cell thus obtained exhibited an outstanding molecular alignment condition with no unevenness . using a mixed lb film of a piiqp , pip and liquid crystal ( melk &# 39 ; s zli 3489 ) at a ratio of 1 : 1 : 1 , a tn - type liquid crystal cell was prepared in the same way as in example a1 . the cell thus obtained exhibited an outstanding molecular alignment condition with no unevenness . next , examples of a ferroelectric liquid crystal device in accordance with this invention will be described . substrate and lb film to be formed thereon for use in making a ferroelectric liquid crystal device respectively can be made of the same ones as those used in making a tn - type liquid crystal device excepting that only the liquid crystal to be injected thereinto is different from each other . at first , examples in which a lb film having no liquid crystal mixed is used as an alignment controlling film will be described . in these examples , the same substrate as in group a examples was used and a lb film having no liquid crystal mixed and being made of a polyamide having a long - chain alkyl substituent was formed on the surface thereof by the method shown in group a examples . two glass substrates each having been formed a lb film as the alignment controlling film were held so that the surfaces on which the lb film was coated can confront each other and then be adhered . fig5 shows a ferroelectric liquid crystal display device obtained by the method of this invention . in fig5 reference numerals 51 , 52 , 53 , 54 and 55 indicate an upper substrate , lower substrate , the direction to lift the upper substrate , the direction to lift the lower substrate and a sealing resin . namely , as shown in fig5 on the four sides excepting a part of one side of one of the two glass substrates was printed an acid anhydride setting epoxy resin composition dispersedly having a spacer with a specific diameter to form the sealing resin 55 . the two glass substrates were heated at 140 ° c . for three hours under the application of pressure thereby to have them adhered to each other . a set of two glass plates thus adhered to each other is called a cell and a liquid crystal material was injected through this opening thereinto under the reduced - pressure condition . the ferroelectric liquid crystal material to be injected can be selected singly or combinedly to make a mixed liquid crystal from the group consisting of schiff &# 39 ; s base , non - schiff &# 39 ; s base , azo , azoxy , biphenyl and aromatic ester systems , those having a ring substituent such as , for example , cyano , and those having a heterocycle . further , a ferroelectric one can be selected from among mixed liquid crystal materials which are made of these ferroelectric ones and other non - ferroelectric ones . it is preferable to select a liquid crystal having such a property that when cooled from an elevated temperature , the liquid crystal phase can be shifted from an isotropic liquid crystal successively to a chiral nematic , smectic a and chiral smectic c phase . after injection has been completed , the opening was sealed with an acid anhydride setting exoxy resin composition , thus the liquid crystal cell being completed . a ferroelectric liquid crystal display device using , as shown above , a monomolecular film or a laminated monomolecular film containing a polyamide compound having the long - chain alkyl substituent in its side - chain as the main component has the property to effect molecular alignment of a ferroelectric liquid crystal with no use of the rubbing process and yet provide a high quality display vision with a reduced unevenness of alignment . hereinafter , this invention will be described in detail using concrete examples . an ito electrode having a thickness of 200 nm was evaporated in vacuum using a pattern - formed mask on one side of a glass plate of 60 mm × 50 mm in size . next , a silicon oxide film having a thickness of 100 nm was formed on the ito electrode as a dielectric layer by the vacuum evaporation coating technology . on the other hand , a polyimide precursor ( pip ) obtained by reacting an acidic chloride of pyromellitic acid distearyl ester with 4 , 4 &# 39 ;- diamino - diphenyl ether was melted into a mixed solvent of dimethyl aceto amide and chloroform . ## str3 ## using the solution thus obtained , a lb film of pip was laminated in five layers through the above - mentioned method on the glass plate having said ito electrode evaporatedly formed . two glass plates processed in the same manner were prepared and a cell was constructed in such a manner that the upper substrate 51 and lower substrate 52 have , as shown in fig5 the lifting direction 53 and the lifting direction 54 which are opposite to each other during the formation of lb film , respectively . on the surface on which a transparent electrode layer has been formed of the lower substrate 52 was printed an acid anhydride setting epoxy resin composition dispersedly having plastic beads each being 2 . 0 μm in diameter at a width of 1 mm peripherally on the four sides thereof excepting one side which has a part of 5 mm long to be left unprinted at the central portion thereof , thereby forming the sealing resin 55 . next , the two glass plates were , as shown in fig1 held so as to have the transparent electrode layers 12 confront each other and a pressure was applied thereon at 140 ° c . for three hours to undergo the curing adhesion . after adhesion , a ferroelectric liquid crystal material ( melk &# 39 ; s zli 3489 ) was injected from an opening thereinto under the application of a reduced - pressure . after injection , the opening was sealed with a commercially available acid anhydride setting epoxy resin composition , thus a ferroelectric liquid crystal ( flc ) cell being completed . the flc cell thus obtained was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a lb film of a polyimide isoindroquinazolinedione precursor ( piiqp ) obtained by reacting an oxide chloride of pyromellitic acid distearyl ester with 2 , 5 - diaminobenzamide , a flc cell having said zli 3489 as the liquid crystal to be injected was prepared in the same way as in example b1 . the cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . ## str4 ## using a lb film made of a mixture of a pip and stearyl alcohol at a ratio of 1 : 1 , flc cell having said zli 3489 as the liquid crystal to be injected was prepared in the same manner as in example b1 . the cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a lb film made of a mixture of a piiqp , pip and stearyl alcohol at a ratio of 1 : 1 : 1 , a flc cell having said zli 3489 as the liquid crystal to be injected was prepared in the same manner as in example b1 . the cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heat to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . a flc cell was prepared in the same way as in example b1 excepting that a chisso corporation &# 39 ; s product trade - named as cs 1015 was used as the ferroelectric liquid crystal to be injected . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 110 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . a flc cell was prepared in the same way as in example b2 excepting that a chisso corporation &# 39 ; s product trade - named as cs 1015 was used as the ferroelectric liquid crystal to be injected . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated 110 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . a flc cell was prepared in the same way as in example b3 excepting that a chisso corporation &# 39 ; s product trade - named as cs 1015 was used as the ferroelectric liquid crystal to be injected . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 110 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . a flc cell was prepared in the same way as in example b4 excepting that chisso corporation &# 39 ; s product trade - named as cs 1015 was used the ferroelectric liquid crystal to be injected . the cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 110 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a lb film made of a poly - octadecene - 1 - maleic anhydride , a flc cell using melk &# 39 ; s zli 3489 as the liquid crystal to be injected was prepared in same way as in example b1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . the flc cell thus obtained , however , was unsatisfactory in bistability as a ferroelectric liquid crystal display device and yet large in unevenness of alignment of liquid crystal molecules . furthermore , examples of a liquid crystal device adapted to apply this invention whose alignment controlling film has a liquid crystal as its component and whose liquid crystal to be injected is a ferroelectric one will be described below . the liquid crystal to be mixed used into the alignment controlling film can be selected to be used singly or combinedly to make a mixed liquid crystal from the group consisting of schiff &# 39 ; s base , azo , azoxy , biphenyl , cyclohexane , cyclohexanecarboxylphenyl ester , phenylcyclohexane , biphenylcyclohexane , pyrimidine , dioxane , thioester , diester , terphenyl , cinnamonitryl system and other system liquid crystals . a ferroelectric liquid crystal display device using such a mixed lb film that contains a liquid crystal as its one component as the alignment controlling film has a property to align the liquid crystal molecules even if the rubbing process is not carried out , and yet an improved molecular alignment through mixedly use of liquid crystal materials as compared with the case that the lb film is used singly , thus being capable of providing a high quality display characteristic without no unevenness of molecular alignment . hereinafter , concrete examples of this invention will be shown in detail . an ito electrode having a thickness of 200 nm was evaporated in vacuum using a pattern - formed mask on one side of a glass plate of 60 mm × 50 mm in size . next , a silicon oxide film having a thickness of 100 nm was formed on the ito electrode as a dielectric layer by the vacuum evaporation coating technology . on the other hand , a mixture of a polyimide precursor ( pip ) obtained by reacting an acidic chloride of pyromellitic acid distearyl ester with 4 , 4 &# 39 ;- diaminodiphenyl ester and a liquid crystal ( melk &# 39 ; s zli 3489 ) at a ratio of 1 : 1 was melted into a mixed solvent of dimethylacetoamide and chloroform . using the solution thus obtained , a mixed lb film of a pip and liquid crystal material was laminated in five layers through the above - mentioned method on the glass plate having said ito electrode evaporatedly formed . ## str5 ## two glass plates processed in the same manner was prepared and a cell was constructed in such a manner that the upper substrate 51 and the lower substrate 52 have , as shown in fig5 the lifting direction 53 and the lifting direction 54 which are opposite to each other during the formation of lb film , respectively . on the surface on which a transparent electrode layer has been formed of the lower substrate 52 was printed an acid anhydride setting epoxy resin composition dispersedly having plastic beads each being 2 . 0 μm in diameter at a width of 1 mm peripherally on the four sides thereof excepting a part of 5 mm long to be left unprinted at the central portion thereof , thereby forming the sealing resin 55 . next , the two glass plates were , as shown in fig1 held so as to have the transparent electrode layers 12 confronted to each other and a pressure was applied thereon at 140 ° c . for three hours to undergo the curing adhesion . after adhesion , a ferroelectric liquid crystal material ( melk &# 39 ; s zli 3489 ) was injected from said opening thereinto under the application of a reduced - pressure . after injection , the opening was sealed with a commercially available acidic anhydride setting epoxy resin composition , thus a ferroelectric liquid crystal ( flc ) cell being completed . the flc cell thus obtained was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a polyimide isoindroquinazolinedione precursor ( piiqp ) obtained by reacting an oxide chloride of pyromellitic acid distearyl ester with 2 , 5 - diaminobenzamide , pip and liquid crystal ( melk &# 39 ; s zli 3484 ) at a ratio of 1 : 1 : 1 , a flc cell having the zli 3484 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . ## str6 ## using a mixed lb film of a pip , stearyl alcohol and liquid crystal ( melk &# 39 ; s zli 3489 ) at a ratio of 1 : 1 : 1 , a flc cell having the zli 3489 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , stearyl alcohol and liquid crystal ( chisso &# 39 ; s cs 1014 ) at a ratio of 1 : 1 : 1 , a flc cell having the zli 3489 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , the following compound ( pa ) and liquid crystal ( chisso &# 39 ; s cs 1014 ) at a ratio of 1 : 1 : 1 , a flc cell having the zli 3489 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . ## str7 ## using a mixed lb film a pip , stearyl alcohol and liquid crystal ( chisso &# 39 ; s cs 1014 ) at a ratio of 1 : 1 : 1 , a flc cell having the zli 3654 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , piiqp , stearyl alcohol and liquid crystal ( melk &# 39 ; s zli 3489 ) at a ratio of 1 : 1 : 1 : 1 , a flc cell having the zli 3489 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip and liquid crystal ( melk &# 39 ; s zli 3220 ) at a ratio of 1 : 1 , a flc cell having the zli 3484 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , piiqp and liquid crystal ( melk &# 39 ; s zli 3320 ) at a ratio of 1 : 1 : 1 , a flc cell having the zli 3489 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , stearyl alcohol and liquid crystal ( melk &# 39 ; s zli 3220 ) at a ratio of 1 : 1 : 1 , a flc cell having the zli 3489 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , piiqp , stearyl alcohol and liquid crystal ( melk &# 39 ; s zli 3220 ) at a ratio of 1 : 1 : 1 : 1 , a flc cell having the zli 3489 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip and liquid crystal ( chisso &# 39 ; s cs 1014 ) at a ratio of 1 : 1 , a flc cell having the zli 3489 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , piiqp and liquid crystal ( chisso &# 39 ; s cs 1014 ) at a ratio of 1 : 1 : 1 , a flc cell having the zli 3489 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , stearyl alcohol and liquid crystal ( chisso &# 39 ; s cs 1014 ) at a ratio of 1 : 1 : 1 , a flc cell having the zli 3489 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , piiqp , stearyl alcohol and liquid crystal ( chisso &# 39 ; s cs 1014 ) at a ratio of 1 : 1 : 1 : 1 , a flc cell having the zli 3484 as the liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 100 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip and liquid crystal ( chisso &# 39 ; s cs 1014 ) at a ratio of 1 : 1 , a flc cell having a chisso &# 39 ; s product trade - named as cs 1015 as the ferroelectric liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 110 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , piiqp and liquid crystal ( chisso &# 39 ; s cs 1014 ) at a ratio of 1 : 1 : 1 , a flc cell having the chisso &# 39 ; s cs 1015 as the ferroelectric liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 110 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , stearyl alcohol and liquid crystal ( chisso &# 39 ; s cs 1014 ) at a ratio of 1 : 1 : 1 , a flc cell having the chisso &# 39 ; s cs 1015 as the ferroelectric liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 110 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . using a mixed lb film of a pip , piiqp , stearyl alcohol and liquid crystal ( chisso &# 39 ; s cs 1014 ) at a ratio of 1 : 1 : 1 : 1 , a flc cell having the chisso &# 39 ; s cs 1015 as the ferroelectric liquid crystal to be sealably injected was prepared in the same way as in example c1 . the flc cell thus prepared was subjected to the initial alignment treatment in such a manner that it is preliminarily heated to 110 ° c . and then cooled gradually . thus , a flc cell exhibiting an outstanding molecular alignment condition with no unevenness was obtainable . in the above - described examples of this invention , furthermore , the vertical dipping method is used for the formation of lb films , but generally well - known rotatingcylinder method or horizontal adhesion method can be used for this purpose . in addition , the liquid crystal to be used as a component of the lb film of this invention is not limited to the melk &# 39 ; s products trade - named zli 3220 and zli 3489 . further the liquid crystal to be used for injection is not limited to the melk &# 39 ; s product tradenamed zli 3225 . still further the description is made on a tn - type liquid crystal display device and ferroelectric liquid crystal display device only , but this invention can be effectively applied to display devices which require effecting the alignment control of liquid crystal molecules other than the abovementioned ones .