CH647876A5 - METHOD FOR PRODUCING LIQUID CRYSTAL DISPLAY UNITS AND LIQUID CRYSTAL DISPLAY UNITS PRODUCED BY THIS METHOD. - Google Patents

Description

The invention relates to a method according to the preamble of claim 1 and liquid crystal display units according to the preamble of claim 11. 30 Fundamentally, liquid crystal compositions are materials which show reversible optical properties when exposed to an electric field. Typically, these compositions are translucent to light, but when exposed to an electric field 35 they scatter incoming light. This behavior of liquid crystals has been described in detail in the literature, which is why it is not discussed in more detail here. It is also well known that certain liquid crystal compositions are responsive to both DC and AC excitation.

It is known that liquid crystal display units can be operated in at least two ways, namely the reflective or the translucent mode. The display units which are the subject of the invention are suitable for both operating modes. A reflection type liquid crystal display unit includes a transparent electrode spaced from a second transparent electrode, the space between the two electrodes being thus filled with a liquid crystal composition. When an electric voltage is applied to these electrodes, the liquid crystal composition is exposed to an electric field, which causes the composition to change its optical properties. This causes the contrast in the viewing plane formed by the reflective electrode to change in the vicinity of the liquid crystal composition, which area is exposed to the electric field. A desired display can be achieved by shaping at least one of the electrodes according to the pattern to be displayed or a part of the co pattern to be displayed.

A liquid crystal display unit operating in the translucent mode contains two transparent electrodes between which there is a liquid crystal composition. A light source is arranged behind the liquid crystal display unit and selective areas of the liquid crystal composition are exposed to the influence of an electric field by applying an electrical voltage between the electrodes. The electric field causes

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that the liquid crystal composition scatters the light. embodiment of a liquid crystal display

By shaping at least one of the electrodes accordingly in an exploded diagram,

the desired pattern can be displayed. The side view of the display unit according to FIG. 1, the thicknesses of the parts being exaggerated

As described above, since the displayed pattern is represented by 5,

The shape of one or more electrodes is determined by FIG. 3, the schematic representation of the process steps.

, a liquid crystal display can be used for any use to make a conductive pattern

purpose. Typical display units contain film strips,

4 shows the top view of a section of a part of a film strip used in the process according to the numbers 0 to 9, or a dot-io preferred used film strip,

arrangement, the pattern to be displayed by a diagram.

number of selectively selected points is displayed. The dot-shown subsequent process steps for producing the display device can be a liquid crystal composition of individual display units, which are shown in FIGS.

have electrodes which enclose a plurality,

of insulated conductors lying close together, FIG. 6 shows a further method according to the invention, the conductors of one electrode being perpendicular to conductors of the exemplary embodiment of a liquid-crystal-other electrode produced. A point becomes visible in the exploded graphical figure eight, with about half of the

act a control of the light by the liquid crystal Fig. 7A the side view of that shown in Fig. 6

Composition necessary voltage is applied. A 20 liquid crystal display unit, with the thicknesses exaggerated

The dot appears at the point where two conductors of the electronics are shown,

cross treads. 7B shows a section through the liquid crystal display unit according to FIG. 7A,

8, the schematic representation of the subsequent process steps shown in FIG. 8 for the plates provided with an electrode pattern are used for obtaining plates. Between two prefabricated glass plates of the liquid crystal display shown in Figs. 6 and 7, a liquid crystal material (e.g. a twisted neumatic unit,

liquid crystal material) and a seal FIGS. 9A and 9B show the schematic representation of the process

is then wrapped around the liquid crystal material in order to make other LCD displays.

to be trapped between the prefabricated glass plates. 30 units and

The prefabrication of the glass plates comprises a photolithographic FIGS. 10 and 11 the schematic representation of alternative

phical process with selective etching of a conductive ven process steps for filling and sealing the rivers

Coating of the glass plate and the application of an alignment crystal display units.

1 shows the exploded diagrammatic orientation necessary. A second glass plate, which is provided with a conductive representation of a glass layer provided by the method according to the invention, is produced in a similar manner. As described, however, it comprises a different electrode pattern from FIG. 2, several sandwich-like and par-stered ones, and the orientation of the alignment layer is arranged one above the other, namely from above, transverse to the direction of the alignment layer on the down a polarizing film strip 10, an upper most glass plate. The first and second glass plates are aligned with one another 40 electrode film 20, a spacer frame 30, a lower one so that they face each other and partially touch electrode film strips 40 and a polarized one. Thereafter, the liquid crystal material is inserted between casual and partially reflective film strips 50, hereinafter the glass plates, and a seal is also called a transreflector. A liquid crystal material is inserted in the material between the glass plates to enclose the liquid crystal space defined by the spacer frame. Finally, polarizers 45 are aligned. The upper and lower electrode film strips are aligned and fastened to the outside of the glass plates with elements that correspond to the desired display pattern. The known production of liquid crystal samples.

The disadvantage of display units is that this manufacture. FIG. 2 shows the side view of the liquid crystal display.

cannot be automated, and therefore for the lead-through unit according to FIG. 1, with the individual parts of a preferred

all critical process stages to expensive human 50th embodiment. Typical dimensions of a three-

Manual labor is required. In addition, through the photoli- half digit display unit for watches are: length 21.6 mm,

topographical etching the resolution by the large width 14 mm and thickness 0.5 mm without the polarizers. The display is limited to the glass. typical thicknesses for the polarizer 10 and the polarized

It is the object of the invention to provide a method for producing the transreflector 50, 0.2 mm, for the upper electrode film len of liquid crystal display units, with which 20 and the lower electrode film 40.18 mm, and for the chem the production costs through automation the Her distance frame 3010 (im.

Position can be lowered, and where unprocessed With reference to FIG. 3, the production of raw material is automatically supplied below and processed into display units of the embodiments shown in FIGS. 1 and 2. wrote. A film strip is taken from a supply roll 100

The method according to the invention is carried out by the 60 101 and the automated LCD film

drawing part of claim 1 supplied to the note system. The filmstrip 101 is transparent,

times marked. Optically clear film strips made of "Mylar" (polyethylene tereph

The thalate), polyethylene, triphthalate, polycarbonate, polyvinyl

Liquid crystal display units are characterized in that in the characterizing chloride, cellulose or triacetate part of claim 11 nenden for this purpose. it used. Each of these film materials has its own

The invention is below with reference to the advantages and disadvantages and it must be between the production

Drawing explained for example. It shows cost and workability found a compromise

1 a can be produced using the method according to the invention. Ideally, the filmstrip should look like this

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Cellulose acetate butyrate (CAB), isotropic. However, photoresist that corresponds to the electrode pattern is

This material is chemically unstable and is activated and hardened by most mixes (with positive photoresist), thus attacking organic solutions, acids and alkalis. It is that these areas are impermeable to an etching solution, which in the following is advisable, however, to use such CAB film strips if process step is used. They are provided with the partially hardened photoresist gene with chemically inert and electrically insulating coatings. In general, the thickness of the film strip that is then etched and the conductive coating is etched can vary from 0.025 mm to 1.27 mm. Photoresist removing station 140 fed. In the

Taking into account material processability and tion 140, the uncured part of the photoresist is removed from the

The optimum seems to cost at a thickness of 1 mm to strip composite 104 with the help of a chemical etchant

0.25 mm to lie. The transparency of typical film strips removed under control, so that the part no longer covered is larger than 90%. However, film strips with little conductive coating can be removed. Etching away the lead

transparency. The filmstrip 101 can be coated at room temperature by means of a transparent conductive coating. The stannates in 50% HCl take place within 10 to 20 seconds. In

Coating, for example made of indium oxide, cadmium stannates in most cases and depending on the type of

or preferably from indium oxide doped with tin oxide, the film strip 101 can be formed by the etching with is to control the angle of inclination of the molecules in the flux-preferred orientation. The station 140

sprayed on the film strip or sig- nal strip compound 105 sprayed the sig crystal has the desired from the vapors. It is very important that the filmstrip on the transparent pattern is formed by the conductive coating

Resists evaporation heat and not any filmstrip 101. The strip assembly 105 then passes out a material and vapor deposition or spray system 20 through a film rolling station 150. In this station is contaminated with. The coating typically has a thickness using one of several possible methods of film

40 µm and a specific surface resistance of approximately rolled onto the strip composite 105 and at the same time as

500 ohms / unit area. The thickness of the coating affects the alignment layer for aligning the molecules of the flux.

flows the transparency of the coated film strip and it sig crystal in a homogeneous or homotropic direction

an optimization must be made between the necessary transparency. Many types of materials can be used for

border and resistance. The width of this purpose can be used e.g. a polymer film, i.e. Poly

The supply roll 100 for the filmstrip 101 is 304 mm to vinyl alcohol, which is produced using the automated film application

915 mm. Driving to facilitate treatment of the filmstrip is tolerated. The resulting streak

101 and also to enable the use of norma-bundle 106 is led from the film roll-up station 150 to a standardized manufacturing and processing equipment, the 30 tion 160 is guided, in which the alignment layer is hardened, the width of the rolled-up film strip, preferably 35 mm, and fixed . The curing process is done with a heat or 70 mm. In this case, sources such as infrared or thermal heating can be obtained on the market. A cutting machine and punching device for the hardened strip assembly 107 is then guided from the station processing the film strip 101 by means of an automated 160 to the station 170, in which a rubbing brush or assembly line arrangement (for example the one shown in FIGS. 3, 4 or 35 in one single direction working friction method 5 arrangements shown) can be used. 4 shows the physical alignment of the molecules in which a part of a cut and perforated film strip hardened polymer is used. In this way, the 500th perforation holes 501 are obtained for guiding the filmstrip alignment layer of the strip assembly 108. Alfens provided through the arrangements. Alternatively, deposits of Si02 can form

3, a film strip 111 is used from a oriented alignment layer without rubbing

Supply roll 110 unwound and the automated arrangement.

voltage to be applied to the film strip 101. According to FIG. 5, the strip composite 108 of an adhesive film strip 111 is supplied with a photoresist material in strip form, bestation 175, in which one is provided with adhesive - but there are also other methods for applying a phonic arrangement of sealing rings the strip-resist material on the film strip 101 possible. The 45 bund 108 is applied. Preformed laminates, ther choice of photoresist material is dependent on the rubber sealing rings or other types of adhesive. Desired resolution of the pattern geometry of the material to be formed or epoxy resin can be used to form the adhesive conductive electrodes and the chemical indifference of the arrangements provided will. According to a turned filmstrip 101. Either a positive preferred method step, the sealing arrangement or negative photoresist can be used. The photoresist can be applied using the screen printing process from the strip composite 108 111, indium oxide, cadmium stannate or “Dupont Ri”. However, it can contain some other method. The photoresist strip 111 is brought into contact with the others for forming the sealing arrangement on the strip film strip 101 in such a way that the photoresist strip is used in a bonded manner 108 if it is suitable for laying 111 on the conductive coating of the film strip 101 of the automated sealing process. A streak comes and covers the filmstrip 101 evenly. The window assembly 109, which leaves the station 175, is then joined together with a resulting strip assembly 102, for example a second strip assembly 200, the transport rollers, not shown, being a preferred embodiment with the perforation being in the perforation assembly. NEN 501 engaging fingers (see FIG. 4), a sample. The strip assembly 200 was fed in a similar manner to the gluing station 120. The exposure station 120 strip assembly 108 provided with a conductive coating is etched to expose the strip assembly 60 passing through it and provided with an alignment layer, but with

102 periodically triggered, so that a patterned light field, which is complementary to the pattern of the strip assembly 108, provides the photos on the strip assembly 102 with the direction of the alignment resist 111 being exposed. The light pattern emitted by the exposure station transversely to the direction of the alignment layer of the stripe corresponds to the desired pattern which the composite window 108 extends if the two composite stripes have been formed 65 from the conductive coating of the film strip 101 so that the electrode pattern is to be the same . The exposed strip assembly 103 will then lie opposite each other from both strip assemblies. The streak passed through a station 130 developing the photoresist. Composites 109 and 200 are joined together in such a way that in the developer station 130 the areas on which their electrode patterns together become an electrode pattern pair

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form. After the strip composite has been joined together, the typical thickness of the upper polarizer film 10 and of the lower

109 with the strip composite 200 these are together a polarizer film 30 is 0.25 mm and the distance frame

ner station 215 supplied, in which the strip composite men 30 has a thickness of 10 | xm. At the bottom Polarisa

109 and 200 to form a combined strip composite 110 vertical film 30, a transreflector can be attached in order to be united. The combined strip composite 110 is allowed to allow 5 reflective operating modes.

7B shows that the top combined film 60 together with fibrous spacers between the top first polarizer film 1, its top and bottom sides and bottom strip assembly 109 and 200 is introduced, with a chemically inert and abrasion-resistant protective layer 2 In a preferred embodiment, an additional is covered, a transparent conductive coating 3, which covers the conductive epoxy resin between the upper and lower protective layer 2 on the underside, and an alignment -fenverbund and inside the sealing boundary introduces an orientation layer 4 with a first orientation direction in order to establish an electrical connection between a connector, the alignment layer 4 covering the conductive coating of the lower electrode pattern and a contact of the. The lower combined film 70 comprises a two-top electrode pattern. ten polarizer film 5, the upper and lower side with a

The combined strip composite 110 with the liquid crystal chemically inert and abrasion-resistant protective layer 2 covers stall material and the spacing means between the strips. The transparent conductive coating 3 covers the top fen 109 and 200 is then sealed around a protective layer 2 and an alignment layer 4 is over that

Form a plurality of liquid crystal display units 111. conductive coating 3 arranged. The distance frame 30 um

The one containing the liquid crystal display units 111 holds a sealing ring 6, which seals the seal between the

Strip assembly 112 is fed to a station 230, in which layers of the upper and lower combined filter layers 4

the strip composite 112 for preparing the mounting 60 or 70 liquid crystal material 7

against a polarizer and a transreflector. The sealing ring helps to keep the com-

becomes. The cleaned strip assembly 112 then comes to binated films 60 and 70 at a distance. The arrangement shown in FIGS. 6 and a station 235 in which a polarizer 240 on the strip 7 can be produced by a window assembly 109 of each display unit 111 in a parallel system, as shown in FIGS. 3 and 8, is used,

direction with the strip composite and a transreflector 245, the starting materials, as shown below,

on the strip composite 200 to form the liquid crystal.

display unit cells 113 are attached. The Polarisa filmstrip 101 may have similar dimensions to the directions of polarizer 240 and transreflector and should have the same properties as previously-245 may be parallel or transverse to the polarization directions 30 and should preferably be bonded to the abrasion resistant alignment layers on the strip 109 protective layer covered with siloxane. The polarized film or 200 run when they form cell 113. The polar stripe can be made from cellulose acetate butyrate (starting from sator 240 and transreflector 245 can be film stripes from the above considerations), acrylic, cellulose, polarizer material, or other forms of po triacetate or polycarbonate. The filmstrip have lariser material which should be compatible with the automated 35 101 continuous polarization manufacturing process. and is with a transparent conductive layer for control. In a preferred embodiment, the angle of inclination of the molecules of the liquid crystal units provided on the cell film 113 will go to a station 260. This strip composite 102 is guided with a photoresist in which the individual liquid crystal display unit is coated in order to form the strip composite 103. The Pho-with attached polarizer and transreflector in individual 40 resist is hardened to obtain the strip assembly 104 parallel strips can be cut, each and then etched to form the strip assembly 105. Since strips have a number of cells 113 in parallel alignment, a barrier layer is applied around the strip ratio. The cut strips are obtained at a station 270 together with 106. After hardening, a strip is obtained in which the function of each liquid crystal cell 107 is combined. After the barrier layer has hardened, it is checked individually. Defective units are treated by application 45 to obtain an alignment layer. The pure color point on the cell is marked accordingly. The result is the strip assembly 108, as described above with cut and tested strips are then described with reference to FIG. 3. The strip ver station 280 is led, in which each individual liquid crystal bundle 108 is treated further and combined with a second strip display unit cell 113 cut into separate modules 290, composite 200, which second strip composite, which module the finished liquid crystal display 200 so similar The way in which the first strip assembly 108 is shown in FIG. 1. The display may be twisted. The direction of polarization of the strip composite, smectic, from cholesteric to smectic phase of the 200 is, depending on the need, parallel or perpendicular to the changing color, dynamic scattering or other type. Direction of the alignment layer of the strip composite 200

6 shows the exploded diagrammatic direction. The two strip assemblies 108 and 200 are

Representation of a liquid crystal display film module that is combined 55 and calibrated to form the liquid crystal display according to an embodiment of the method 111 according to the invention.

rens was manufactured. As better shown in FIG. 8, the module comprises, as can be seen in FIG. 7, a sandwich-like structure 112, the liquid crystal display unit 111 and the station is provided with parallel layers, from top to bottom, one with a 232 in which the individual liquid crystal display

In the upper electrode film 60 combined optical polar units 60 are cut into parallel strips, each with

risator, a spacer 30 and one with a lower of the strips a number of cells 111 in parallel alignment

Electrode combined optical polarizer film 70. Flüs- contains. The cut strips become a station 242

Sig crystal material is supplied in the space defined by the spacer frame in which each individual liquid crystal display cell is enclosed. 111 is checked for functionality. Defective cell

FIG. 7A shows the side view of the liquid crystal elements are marked by applying a spot of color to the cell display module according to FIG. 1. Typical dimensions of a are marked. The cut and tested strips are then fed three and a half digit liquid crystal display film module for clocks to a station 252, in which the cut strips are: length 21.6 mm, width 14 mm and thickness 0.51 mm. The strips to preserve the separate modules

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290 can be cut in the transverse direction. Each module 290 thus obtained is a finished liquid crystal display unit shown in FIG. 6. This display can be twisted ne-matic, smectic, changing from cholesteric to nematic phase, color or other type.

With reference to Figure 9A, a preferred method of joining and sealing two strip bonds is described below. A manufactured strip assembly 308, described in the same way as the strip assembly 107, with reference to FIG. 3, is fed to an adhesive application station 310, in which an adhesive in the form of a ring is applied to the strip assembly 308 to form the strip assembly 309. For example, a sealing ring can be printed on the patterned side of the strip composite 308 in order to connect the printed strip composite 309 to a second strip composite 400 produced in a similar manner.

Other methods of precisely applying the adhesive to the strip assembly 308 in the station 310 can also be used. The strip assembly 309 emerging from the station 310 is then brought together with the strip assembly 400 such that the electrode patterns of the two strip assemblies 309 and 400 lie opposite one another and together form an electrical pattern pair. 9B, the pairs of corresponding conductive electrode patterns are arranged in transverse rows and longitudinal columns on each of the strip assemblies 309 and 400, so that after the two strip assemblies 309 and 400 are connected, a plurality of rows of liquid crystal display units are present.

The strip composite 400 is produced in a similar manner to the strip composite 200 described with reference to FIG. 4. The etched conductive pattern on the composite strip 400 is complementary to the etched conductive pattern on the composite strip 308. The composite strip 400 is fed to a delivery station 390 in which a liquid crystal material with spacer fibers is deposited on the conductive, patterned side of the composite strip 400 around the composite strip 408 to obtain. The strip assembly 408 is joined to the strip assembly 309 as described above and fed to a station 395. If a connection between the electrode patterns of the upper and lower composite strips 309 and 400 is necessary, a conductive epoxy resin is inserted at the relevant points between the two composite strips. The resulting composite strip is then fed to a station 340 where it is pressurized and subjected to a curing process as described above with reference to FIG. 3 and station 160 to form a plurality of liquid crystal display units by means of heat and pressure . The resulting strip composite 310 is fed to a station 410 in order to be cut into individual modules 411, which are checked and marked accordingly, as described above with reference to station 270 shown in FIG. 4, and around the finished products in the form shown in FIG. 2.

To obtain the structure shown in FIGS. 6 and 7, strip assemblies 308 and 400, which have polarized film strips, are treated in an identical manner to strip assemblies 109 and 200 according to FIG. 8. In this case, the etched conductive pattern is on the The composite strip 400 is complementary to the etched conductive pattern on the composite strip 308 and the direction of the alignment layer on the composite strip 400 is transverse to the direction of the alignment layer on the composite strip 308 when the two composite strips have been assembled so that the electrode patterns are opposite to each other.

The further treatment then takes place as described above with reference to FIG. 9.

10 schematically shows part of the manufacturing process of another exemplary embodiment for sealing and filling the LCD module with a liquid crystal material. A strip assembly 505 obtained in the same way as the strip assembly 309 according to FIG. 9A is fed from a supply roll 507 to a station 510, in which the strip assembly 505 is combined with a second strip assembly io 506, which is in the same way as the strip assembly 400 9B was produced and is unwound from a supply roll 508. The strip assembly 505 and the strip assembly 506 are joined together in such a way that the electrode patterns of the two strip assemblies lie opposite one another, so that they form a corresponding pair of electrode patterns. The stacked strip assemblies 505 and 506 are fed to the station 510, in which the strip assemblies are ultrasonically welded 20 along three sides of each pair of electrode patterns. The resulting partially welded strip assembly is fed to a station 520, in which liquid crystal material is introduced through the still open fourth side. The filled strip assembly is then fed to station 530, in which the still open side, for example, is sealed with epoxy resin. The resulting strip composite contains a large number of liquid crystal display units and arrives at station 540, in which the individual closed electrode pairs are cut into individual liquid crystal display units and the individual 30 modules are checked.

According to FIG. 11, a strip assembly 600 produced in the same way as the strip assembly according to FIG. 9A is unwound from a supply roll 602 and joined together with an identical strip assembly 601 to form the strip assembly 400 according to FIG. 9A, that of a supply roll 603 is processed. The strip assembly 600 and the strip assembly 601 are brought together in such a way that the electrode patterns on the two strip assemblies lie opposite one another 4o to form pairs of electrode patterns. The assembled strip assemblies 600 and 601 are then fed to a station 610, in which each pair of electrode patterns are completely sealed, for example by using epoxy resin, with the exception of 45 two filling openings in the strip assembly 600 or in the strip assembly 601. The strip assembly thus obtained is fed to a station 620, in which a liquid crystal material, if necessary together with spacer fibers, is filled through the said filling openings between the electrode pattern of each pair of electrode patterns. The resulting strip composite is fed to a station 630, in which the filling openings are closed, for example with epoxy resin. The strip assembly leaving the station 630 with a plurality of liquid crystal display units is fed to a station 640, in which each individual liquid crystal display unit is cut out and checked as described above.

It should be emphasized that the embodiments described above are very well suited for automatic production 6o. The base strip assemblies can be unwound from supply spools and continuously provided with conductive coatings and with photoresist layers. The process steps required for exposing and developing the photoresist, the selective removal of the photoresist and the “etching of the conductive coating, as well as the friction and curing process steps can be carried out automatically and in time with one another. The material required for the sealing connection of the strip composites,

the liquid crystal material and the filler material can be automatically supplied and dispensed in doses. The cutting of the strip strips produced into individual units and also the checking and marking of the units

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can then be carried out automatically. In this way it is possible to produce liquid crystal display units in large quantities and continuously economically cheap.

C.

7 sheets of drawings

Claims (11)

647 876 PATENT CLAIMS 1. A method for producing liquid crystal display units, characterized by forming an alignment layer on a first and a second strip (108, 200) made of flexible, transparent and insulating film, on which electrically conductive electrode patterns (41) are arranged, bringing the film strips together, so that the electrode patterns face each other and the electrode patterns on the first filmstrip are aligned with the corresponding electrode patterns on the second filmstrip to form corresponding pairs of electrode patterns, inserting liquid crystal material and spacer means (30) between the two filmstrips and forming seals between the filmstrips that the liquid crystal material is enclosed in the space between the respective pairs of electrode patterns to obtain a number of contiguous liquid crystal display units, with adjacent molecules of the liquid crystal material being those of the Alignment layers are subjected to alignment forces generated and in each enclosed space, the two film strips are kept at a predetermined distance by said spacing means. 2. The method of claim 1, characterized in that the directions of the alignment layers are chosen so that the direction of the alignment layer on the patterned side of the first filmstrip is transverse to the direction of the alignment layer on the patterned side of the second filmstrip when the first and second Film strips are arranged adjacent to one another, the electrode patterns being opposite one another. 3. The method according to claim 1 or 2, characterized in that the transparent, insulating film consists of plastic. 4. The method according to any one of claims 1 to 3, characterized by attaching a polarizing means (10) on the first film strip of each display unit in parallel alignment with the first film strip and by attaching a partially transparent mirror means (50) on the second film strip of each display unit in parallel alignment with the second filmstrip. 5. The method according to claim 1, characterized in that the directions of the alignment layers on the first and second film strips are mutually oriented transversely to one another and that the film strips are optically polarized. 6. The method according to any one of the preceding claims, characterized in that the spacing means comprise the associated electrode pattern on the first film strip surrounding sealing rings (30). 7. The method according to claim 6, characterized in that the sealing rings (30) are applied by screen printing to the first film strip (108). 8. The method according to any one of the preceding claims, characterized in that the spacing means comprise filler in the liquid crystal material. 9. The method according to any one of the preceding claims, characterized in that the first and second film strips are provided with guide means (501). 10. The method according to any one of the preceding claims, characterized in that the electrode patterns are arranged in rows across and in columns along the first and second film strips to form a plurality of rows of liquid crystal display units along the interconnected first and second film strips. 11. Liquid crystal display unit, produced by the method according to claim 4, characterized in that a first optical polarization means (10) having a first polarization direction with a transparent, conductive electrode pattern (20) arranged on one side, which represents one half of a pair of electrodes, that a second optical polarization means (50) having a second polarization direction is present with a transparent, conductive electrode pattern (40) arranged on one side, which represents the other half of said pair of electrodes, so that the second polarization means are arranged in such a way that the two electrode patterns (20, 40) lie opposite one another and are aligned with respect to one another in order to form the said pair of electrodes, that the direction of polarization of the second polarization means is transverse to the direction of polarization of the first polarization means, that a first, a first direction directional alignment means for aligning adjacent Moisleekle a liquid crystal material is applied to the electrode pattern of the first polarizing agent, that a second, second alignment directional alignment means for aligning the adjacent molecules of the liquid crystal material is applied to the electrode pattern of the twentieth polarizing agent and that the liquid crystal material is trapped between the first and second polarization means and is in contact with the first and second alignment means. 25th