TWI224687B - Apparatus and method for manufacturing polarizing film, and liquid crystal cell and method for manufacturing the same - Google Patents

Abstract

The present invention provides an apparatus for manufacturing a polarizing film of a liquid crystal display, which is not time-consuming and does not require much labor to manufacture the polarizing film and proceed the adhering operation, as required in the prior arts. The dichroism dye solution developed by Optiva Inc. is served as the ink, which is printed onto the glass or plastic substrate via the flexography device to manufacture the polarizing film. As shown in the drawing, a plate (1) having a plurality of grooves (a) is installed on the plate body (2) along the printing direction. The ink drops paralleling to the clockwise-rotating plate (1) from the distributor (3), and is applied and spread with a knife (4). The dichroism dye in the liquid crystal state is filled into the grooves (a); meanwhile, the knife (4) is not in touch with the plate (1), instead, with a gap therebetween, and an ink film is formed on the plate surface. Therefore, upon the glass substrate (6) secured on the table (5) passing through the region below the plate body (2), the ink film is transferred and printed from the plate (1) onto the glass substrate (6).

Description

1224687 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a method for manufacturing a liquid crystal display, and particularly to a technology suitable for coating a dichroic dye with ink to form a polarizing film. Manufacturing device and manufacturing method of polarizing film and manufacturing method of liquid crystal cell.

I [Prior art] The conventional polarizing plates arranged on both sides of the liquid crystal cell are adhered with an adhesive on the outside of the liquid crystal cell qualified for panel inspection. Therefore, each of the liquid crystal cells broken by a scriber must be attached to the polarizing plate, which makes the workability very poor. In bonding, it is necessary to ensure the positioning accuracy or adhesion strength, prevent air bubbles or dust from entering, and prevent static electricity. In the following steps, in order to strengthen the adhesion of the polarizing plate and the panel, or remove the remaining Bubbles are treated with autoclave, etc. The combination requires a lot of time and labor. Therefore, a first object of the present invention is to provide a device for manufacturing a polarizing film for an LCD, which is suitable for the technology of coating a color paste of a dichroic dye to form a polarizing film, which makes it conventionally take a lot of time and labor to carry out It is not necessary to make and paste polarizing plates. In addition, when applying a color paste of a dichroic dye, a supramolecular complex formed by the dichroic dye is subjected to a shear force (shear f0rce) and is aligned in a certain direction, and a dye molecular rule is generated. Polarization performance of alignment (crystallization). 1224687 Oriented supramolecular complexes are ideal if they are arranged parallel to the substrate. Generally, the arrangement of δ 'oriented supermolecular complexes is somewhat out of this ideal arrangement. The supramolecular complex originally had the property that the major axis direction of the supramolecular complex was consistent in a specific direction, and the arrangement direction of the supramolecular complex was determined by the surface state of the substrate. The magnitude of the interfacial surface tension or the effect of the elastic strain energy associated with the arrangement of the supramolecular complex varies. In the case where the surface tension of the supramolecular complex is smaller than the critical surface tension of the substrate surface, due to the larger force between the substrate surface and the supramolecular complex, the supramolecular complex wets on the surface and spreads on the substrate surface. The supramolecular complexes are aligned in parallel on the substrate. Conversely, when the surface tension of the supramolecular complex is greater than the critical surface tension of the substrate surface, it is compared with the force between the substrate surface and the supramolecular complex. The molecular complexes do not expand on the surface but become spherical, so that the supramolecular complexes are arranged vertically on the substrate. When the surface of the substrate is not smooth, the elastic strain energy of the supramolecular complex is extremely small, that is, the supramolecular complex is aligned in a direction not subject to the elastic strain. Whether the supramolecular complex is parallel to the substrate depends on the surface condition of the substrate, the influence of moisture or gas absorbed on the substrate surface, or the critical surface tension of the actual effect of the supramolecular complex upon contact with the substrate. The relationship between the magnitude of the tension and the orientation of the supramolecular complex may not be true. 4 1224687 And the substrate will be slightly different due to the difference in LCD manufacturers. Therefore, the supramolecular complexes coated on the substrate surface cannot obtain a uniform orientation, which deviates from the ideal arrangement. In order to obtain a uniform orientation, there is a need to obtain an orientation anisotropic on the substrate surface. Therefore, when the technique of applying a dichroic dye paste to form a polarizing film is applied, the second object of the present invention is to maintain the directional anisotropy on the surface of the substrate to obtain the uniform arrangement state of the supramolecular complex. The conventional polarizing plate is disposed on the outermost surface of the LCD, and therefore has a great influence on the display quality, humidity resistance, and heat resistance of the entire display. Therefore, a third object of the present invention is to provide a novel liquid crystal cell and a method thereof, which can be used to apply a color paste of a dichroic dye to form a polarizing film, which can improve the display quality or resistance of a polarizing plate. Wetness and heat resistance are reduced. SUMMARY OF THE INVENTION To achieve the above object, the present invention is constituted as follows. That is, the manufacturing apparatus of the polarizing film of the present invention uses an aqueous solution of a dichroic dye formed as a thick transfer type liquid crystal as a color paste, and applies the color paste to a plate having a plurality of fine grooves along the printing direction. A film is formed, and the thin film is applied to the substrate to form a polarizing film, thereby achieving the above-mentioned object of the present invention. The thinner shape of the different device technology that can equalize the surface is 1224687. It is also preferable that the chemical formula of the aforementioned dichroic dye is as follows:

0 It is also preferable that the chemical formula of the aforementioned dichroic dye is as follows:

6 1224687 It is also preferable that the chemical formula of the aforementioned dichroic dye is as follows:

Further, it is preferable that the dot-like convex portion is raised in the fine groove to form a concave portion and a convex portion of the groove, and the discontinuous portion of the dot-line convex portion faces the adjacent convex portion so that the adjacent convex portion faces the adjacent convex portion. The phases of the parts are staggered alternately. It is also preferable that the convex portion is formed in a raindrop shape in a plan view. Still more preferably, the convex portion is formed into a rod shape in plan view. In the method for producing a polarizing film of the present invention, a coating film for forming a dichroic dye of a concentration-transfer liquid crystal is applied to the substrate surface while applying a shear force to the substrate surface to perform a polarizing film. In the manufacturing step, a pre-processing step is set in the step of applying the aforementioned coating film liquid. Prior to the 7 1224687 processing step, an orientation treatment is performed on the surface of the aforementioned substrate. It is also preferable to use the aforementioned orientation processing as the substrate shape. To form a certain direction, it is more preferable that the orientation layer formed on the surface of the fixed plate is given rubbing to the aforementioned i, and it is more preferably the aforementioned thin aqueous solution. A thin aqueous solution of the aforementioned chemistry is also preferred. Still more preferred is the aforementioned chemistry and still more preferred is the aforementioned chemical liquid. The dichroic dye of the liquid crystal crystal of the present invention is printed on the inside of the cell in one place. The patterned step of the liquid crystal cell of the present invention has been calcinated, and the spacers are spread and adhered. The two substrates are cut into a predetermined size, and the liquid crystal injection step of the panel is adhered to the polarizer. Most of the polarizers are adhered to the micro and fine mechanical treatments. The chemical orientation is given by the directional anisotropy. The method of the opposite sex is an air knife in the case of a wet type (the medicine is a non-ionic interface, the medicine is hydrophilic, the polyethylene glycol is σσ is hydrophobic, and the linear lipid medicine is an organosilane coupling agent. The polarizing film is oriented in the direction of concentration. The method is to make it transparent, and apply the orientation film to the rubbing method. The substrate is bonded to the substrate. And the panel inspection qualified paste step, the liquid characteristics thus formed. Surface shape changes, the product is applied to the base chemical treatment. Dry case air knife) ° Dilute alcohol (PEG) fatty acid of the active agent. The thin water-soluble transfer solution directly or indirectly forms an electrode on the substrate and performs a processing step. The two sides of the unit cell of the bonded liquid crystal material are united.

In the step 1224687, a printing and stabilizing step of polarizing film printing and stabilizing the polarizing film on the substrate surface before the aforementioned orientation processing step is provided, so that the aforementioned polarizing plate sticking step is not required as a feature . In the method for manufacturing a liquid crystal cell of the present invention, in the processing step of forming the aforementioned polarizing film, the pattern of the orientation film applied on the polarizing film is made into a resist and a polarizing film outside the display field. Add a few moments for its special conscript.

In the method for producing a liquid crystal cell of the present invention, in the step of forming the aforementioned polarizing film, the applied polarizing film is dried, and the polarizing film is stabilized in a BaCl2 aqueous solution (8 to 20% by weight). [Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view showing a device for manufacturing a polarizing film according to the present invention.

The polarizing film manufacturing device uses an aqueous solution of a dichroic dye developed by Otiba Optiva Company in the United States as a color paste, so that the color paste is not printed on a glass or plastic substrate in a common flexography device to produce polarized light. membrane. In the figure, a plate 1 having a large number of fine grooves a along the printing direction is mounted on the plate body 2, and a paste 3 is dripped from a dispenser 3 in a direction parallel to the plate ί that is rotating, and the blade 4 is widely used. Coated. The dichroic dye in a liquid crystal state is inserted into the fine groove a. At this time, the blade 4 is not in contact with the plate 1 but is provided with a slight gap to maintain it, and a colored polymer film is formed on the plate surface. 9 1224687 Furthermore, when the glass substrate 6 fixed on the table 5 passes through the plate body 2, the film of this color slurry is transferred from the plate 1 and coated on the glass substrate. The dichroic dye is shown in Figure 2. Color and molecular structure example 0 There are about seven kinds of dichroic dyes used in the polarizing film of the present invention. This specification shows three representative ones.

The electron density of I dichroic dyes is very different in vertical and horizontal directions, but has a slender molecular structure like liquid crystal molecules. The molecule is known as a flat oblong molecule with a water-soluble functional group s03-. These dyes can be used to make polarizing films even if used alone, but they are generally used in combination. It can be seen from the figure that the double bond exists in many places, and this shows the properties of dyes that are related to the absorption of light. The color paste is an aqueous solution of these dyes. If the concentration of the dye becomes higher, the part, that is, the plane part is piled up and starts to grow, forming a lyotropic (concentration-shifting) liquid crystal and becoming a shape. This condensate of liquid crystal molecules piled up in a rod shape is called a "super-complex", and a schematic diagram is shown in FIG. 3. An SO〆 group is located on the outside of the rod and is in contact with water. The aspect ratio of rod to length can reach i / uo. This ratio is presented in consideration of the fact that the supramolecular complex that can maintain an equilibrium state at the lowest energy stable place under the interaction of water with hydrophilic groups and hydrophobic groups will increase the viscosity at higher concentrations and become more positive. 6 〇 In the formula, in the large difference type, it can be used to mix the complex width of the hydrophobic solvent stick. Crystallized 10 1224687 phase. If the liquid crystal is subjected to a shear force, it is oriented as well known. Therefore, when the supermolecular complex of the liquid crystal is printed by the polarizing film manufacturing apparatus of the present invention, it is aligned with the printing direction, as shown in FIG. 4 (a). At first, it was considered as a random arrangement, but as shown in Figure 4 (b), as the solvent (water at this time) evaporates after drying, it becomes a more regular arrangement and becomes a crystalline film. 'i At this time, double bonds are present every second on the surface perpendicular to the printing direction. 'Therefore, light with an electric field in this direction is absorbed by the film, and the transmitted light becomes polarized light with an electric field in the printing direction. When the dried crystallized film is treated with an aqueous solution of BaCl2, in a short period of time, one molecule of SOT and one of the other molecules, S03 ·, react with one Ba + ion to produce a cross-linking reaction. As a result, it does not dissolve in water and the mechanical strength increases. This can make the subsequent steps easier. An example of the fine groove pattern is shown in FIG. 5. The fine grooves a are coated with a photoresist on the surface of the plate 1, and the dot-shaped convex portions b are raised by pattern exposure and etching to form concave portions and convex portions of the grooves. At this time, the discontinuous portion c of the convex portion b at this point causes the adjacent convex portions b to face each other and alternately arrange the phases of the adjacent convex portions b. The depth of the micro groove a is 20 to 30 μm, the interval between the adjacent convex parts b is 120 to 500 μm, and the length of the discontinuous part c is preferably 30 to 8 00 μm. In the pattern of 5 (a), the convex part b is formed in a raindrop shape in a plan view, and the length of the short axis is 30 to 70 μm, the length of the long axis is 100 to 1 000 μm, and the angle of the thin end before the tail part is 8 to 19 ° is preferred. 1224687 The short line is placed in the base line. The pattern in the 5th (b) pattern is to form the convex portion b in a plan view with a rod shape, the shaft length is 30 to 70 μιη, and the long axis length is 100 to 100 μιη. good. Next, the manufacturing method of the polarizing film which implements this invention is demonstrated. The manufacturing method of polarizing film is a coating film containing a supramolecular complex containing dichroic dyes spontaneously stacked into a rod, and a printing device or a coating device is used to give a shearing force at the same time as the + coating step to set a pretreatment In the previous step, an orientation process was performed on the surface of the glass substrate, so that the arrangement state of the supramolecular complex formed by the dichroic dye when coated on the glass substrate was a homogeneous molecular arrangement state. Orientation treatment is divided into a machine where a directivity defect corresponding to the size of the supramolecular complex is added to the surface of the glass substrate to give directionality, and a chemical substance attached to the surface of the glass substrate is given directionality.化 处理。 Processing. A method for imparting directivity to chemicals is a wiping method in a dry method and an air knife in a wet method. Fig. 6 shows a schematic diagram of mechanical processing. The mechanical treatment system uses the wiper used in the LCD manufacturing as shown in the figure. The cloth 8 such as rayon () is wound on the roller 7 of the wiping device, so that the roller 7-while rotating-will be placed on the table 5 Glass plate: move in the direction opposite to the rotation direction of the roller 7. As a result, the surface of the glass substrate 6 is rubbed in a certain direction, and there are many fine grooves.

In the case where the interface has unevenness 12 1224687 distortion) state, the coated supramolecular complexes are arranged in a state where the elastic strain energy is extremely small. As a result, due to the interaction between the groove and the supramolecular complex, the orientation of the supramolecular complex can be aligned with the direction of the trench. Therefore, even if the coating film direction and the wiping processing direction are changed, the orientation of the supramolecular complex is independent of the coating film direction, but is consistent with the wiping processing direction. i 'When implementing the wiping treatment, compared with the case of the conventional non-wiping treatment, the polarizing performance can be improved by up to about 20%. From the results of the experiment, it can be seen that the smaller the angle Θ between the coating direction A and the wiping treatment direction B is, the higher the polarization performance is. In FIG. 8 (a), θ = 0 °, (coating direction A and wiping treatment. Orientation B—increase) increases by about 20%, and θ = 15 in Fig. 8 (b). Increased by about 10%, θ = 30 in Figure 8 (c). Increased by about 5%, θ = 45 in Figure 8 (d). It increased by about 5%. The polarizing film has various directions depending on the requirements of the user, and the supramolecular complex according to various requirements needs to be oriented in an oblique manner with respect to the glass substrate 6. The conventional coating film method without wiping treatment, as shown in FIG. 9 (a), when the supramolecular complex is oriented obliquely to the glass substrate 6, since the coating film direction A cannot be changed, it is necessary to rotate the table 5 The glass substrate 6 is inclined 0. However, when the table 5 is rotated, the table 5 is inclined. To prevent the table 5 from being inclined, an accuracy of 0.01 mm or less is required. This rotation of the table 5 would incur significant costs. In addition, as shown in FIG. 9 (b), when the table 5 is larger than the glass substrate 6, the glass substrate 6 is tilted. When the coating liquid is completely applied, the 13 1224687 coating liquid is from the glass substrate. If the glass substrate 6 is the same size as the table 5 as shown in Figure 9 (c), the table 5 needs to be tilted and When applying the coating liquid, the amount of liquid required in the width direction is different, which makes the adjustment of the outflow of the coating liquid complicated. i

In the coating method of the present invention, the orientation of the supramolecular complex is the same in the wiping treatment direction. It is relatively simple to change the wiping treatment direction, so it is not necessary to tilt the glass substrate 6, so the above problems do not occur. In the case of mechanical treatment, when the rayon cloth 8 was wiped, the supramolecular complexes showed exactly the same molecular arrangement. In addition, when the material of cloth 8 is changed to rayon, nylon, polyester, polyethylene, polypropylene, and Teflon (te fl ο η), various orientation properties are displayed due to differences in polarity and the like. Therefore, The difference in the composition of the coating liquid is expected to make flexible use of the material of cloth 8.

Figure 7 shows a conceptual diagram of chemical treatment. There are two types of chemical treatments, wet and dry. Wet method involves immersing the glass substrate 6 in the chemical solution, washing or spraying the solution with the chemical solution, washing the glass substrate 6, and drying it with an air knife. ° At this time, wipe with a sponge with a household wipe, and then remove the water with an air knife. Or wipe it with a wet sponge and detergent at home and remove it with an air knife after brushing. 14 1224687 Dry system, for example, dissolve stearic acid and dry it inside. Roll this cloth on an alcohol solution infiltration wheel rolled in alcohol to wipe and treat the slope substrate. 6 For cloth ft (felt). Gauze, or other hard materials. As a result, a thin alignment layer of a chemical is formed on the surface of the glass substrate 6 due to chemical bonding or intermolecular force, and the alignment layer is provided with directional anisotropy by air knife or wiping treatment.

As a result, the supramolecular complexes are aligned in a certain direction following the orientation of the alignment layer material formed on the surface of the broken glass substrate 6. Specifically, the non-ionic surfactant is diluted into 1,000 pieces and coated on a cloth. The surface of the glass substrate 6 is wiped with this cloth, and an aqueous solution of a surfactant is applied in a certain direction. After that, it is effective to wipe with a dry cloth in the same direction. Alternatively, after the glass substrate 6 is wet-washed and washed, the above-mentioned surfactant is applied to a wet part or position to a solution of 50 to 100 ppm, and is replaced with water, and then the water is removed with an air knife.

When a shearing force is applied to the gas direction when removing water, the polarization performance is improved. The surfactant is made of a hydrophobic part and a hydrophilic part. And the hydrophilic polyethylene glycol (molecular weight 200 ~ 20,000) has the same effect as the surfactant. Hydrophobic stearic acid is solid. When attached to cloth and applied, it has the same tendency as polypropylene and Teflon. After treating the glass substrate 6 with a solution of a silane coupling agent and removing the liquid with an air knife 15 1224687, the same effect is obtained. In addition, wiping the glass substrate 6 with wet treatment has the effect of imparting directivity. A cross-sectional view of a liquid crystal cell embodying the present invention is shown in FIG. An example of a simple matrix LCD such as STN is shown in the figure. The liquid crystal cell system is formed by successively layering a transparent electrode 9 'SiO' 10 'polarizing film n, an orientation film 12 on the inner side of two glass substrates 6, and sandwiching a thin layer of the liquid crystal material 13 to surround the sealing material 14 around the periphery. The unit cell is hermetically sealed. The polarizing film 11 uses an aqueous solution of a dichroic dye as a color paste, and applies the color paste to a plate having a plurality of fine grooves along the printing direction to form a film. membrane. The liquid crystal molecules of the liquid crystal material 13 are in direct contact with the alignment film 12, and the ceu gap of the 13-layer thickness of the Aita Yuri-ri material is controlled by the diameter of the spacer 15. When the glass substrate 6 is made of alkaline glass, its alkaline components tend to be eluted in the liquid crystal, which causes a decrease in contrast and deteriorates the image quality. Therefore, as shown in the figure, a Si02 film 10 is formed between the transparent electrode 9 and the polarizing film, or between the glass substrate 6 and the transparent electrode 9, and the glass substrate 6 is undercoated. FIG. 11 shows the flow of steps for implementing the liquid crystal cell manufacturing method of the present invention. Fig. 12 shows a plan view and a step sectional view of the liquid crystal cell manufacturing method. The liquid crystal cell is firstly exposed on the well-washed glass substrate 6 by a deposition method 16 1224687 (deposition) or a sputtering method, etc., and patterning the mask pattern, and then removing the resist After the agent material is washed, the electrode pattern corresponding to the electrode pattern is formed on the transparent electrode 9. (Step 102) A film of IT0 is formed, and a transparent electrode is formed by coating it thereon. (Step 10 1) The Si 0 2 film 10 is applied by printing 9 and then, before the polarizing film is applied, a cloth with a surfactant is attached to the surface of the lower film, a wiping treatment is performed, and the molecules of the polarizing film u are performed. Orientation is better with pre-treatment. (Step 10)

Secondly, on the entire surface of the glass substrate 6, a color paste of a polarizing film is used to print polarized light m11 'or a coating device for imparting other shearing force is applied, and then dried. (Step 104) When applying the polarizing film 11, a shearing force can be applied to the polarizing film u by a bar coater, a slot die, a plate, or the like. The molecules formed by sex dyes are oriented in a certain direction. In order to stabilize the application and drying, it is expected to be higher than the temperature of 23 and the humidity of 60.

Thereafter, the polarizing film U is stabilized, cleaned, and dried in steps q to form a color paste of the polarized film 11. The solvent is water. Therefore, after the coating step, the film P is made dry but in contact with water, the film will collapse. . Therefore, in order to make it insoluble in water after drying, a stabilization treatment is performed. The "stabilizing treatment is a treatment in which BaCl2 is made into an aqueous solution of 8 to 20 wt%, and the membrane 11 is immersed in this aqueous solution for 2 to 10 seconds. Thereafter, the glass substrate 6 coated with the light film 11 was washed with pure water, and the excess BaCh aqueous solution was removed. 17 The pure water was removed with an air knife, and the glass substrate 6 was dried from about 12 to about rc. The water is completely dry. Through this step, the glass-based 6 film with full polarizing function can be formed in a stable state in water. It is a person who performs PI printing and hardening. (Step 106) 'pi system, 胄 organic The diluted polyimide solution was coated with an aniline printing device, and the pattern of the orientation film 12 was printed on the polarizing film. Hardening is drying the solvent at a heating temperature of about 80 ° C, and then firing to polymerize the polymer. Rhenimine is completely hardened.

Etching, cleaning and drying are performed next. (Step 107) The money is engraved with an alkaline aqueous solution of more than 0. 2% (0. 2 to 0. 5%) of the glass substrate 6 and then rinsed with pure water to dissolve the polarizing film at the non-oriented film 12. Remove. Thereby, it is possible to simply leave only the display area of the polarizing film U. Even the gadolinium-stabilized polarizing film 11 is peeled off by contact with the aqueous solution. At this time, the temperature of the medicinal solution is preferably from 20 ° C to 25 ° c.

Secondly, a roller for winding cloth such as rayon is rotated and a rubbing treatment for rubbing the alignment film 2 to a certain direction is performed at the same time, so that the orientation orientation of the liquid crystal molecules is uniform in a certain direction. (Step 108) In this process, the polymer main chain of the polyimide of the alignment film is extended in the wiping treatment direction, and the liquid crystal molecules are aligned along this extension direction. Next, on one glass substrate 6, spacers 15 for controlling the cell spacing are dispersed. (Step 109) Next, the glass substrate 6 facing the glass substrate 6 is body-attached, and the sealing material 14 for sealing is applied to the other glass substrate 6. (Step 18 1224687 step 110) and the spacer 1 5 is attached. (Step 8: Laminate the broken glass substrate 6 coated with the sealing material 14 and the broken glass substrate 6 with good accuracy and press 111.)-Tie the bonded glass substrate 6 to the specified place by a heating press. Cells are separated and the sealing material " heat hardens. (Step 112). The glass substrate 6 is divided into multiple panels of various sizes, such as chamfering. (Step 113) Next, the liquid crystal material 13 is injected into the panel, and it is sealed at the injection port. The rear panel = the liquid crystal material 13 or dust, and it is cleaned after staining. (Step 114) Secondly, carry out foreign objects or defects, poor disconnection, uneven color spots or unit cell spacing between polarizing elements, and appearance inspections such as poor orientation or presence of black or white spots. The presence or absence of defects, the dots and lines show the presence of defects, etc. (Step 115) The combination of liquid crystal cells can be completed by the above steps. The industrial application can be described above and the production of the polarizing film of the present invention. The device uses an aqueous solution of a dichroic dye as a color paste, so that this color paste is printed on the substrate and forms a polarizing film. No need to know the production or sticking of polarizing plates, which can greatly improve the production efficiency of LCD. Polarized light The film is not formed on the outside of the glass substrate, but is formed on the inside, so the viewing angle can be enlarged only by the thickness of the glass substrate. Also, dyes such as iodine used in the conventional polarizing plate are juxtaposed into filaments due to molecules. Since 19 1224687 The hypotenuse is not expected to have a base, but it is low. Ba + + and various pairs are placed on the substrate. By processing about 20% of the results, the thickness of the board in another direction is defective. It is difficult to prevent the phenomenon of light leakage, and the width of the dye molecule used in the polarizing film of the present invention is about two times that of the benzene nucleus, so the light leakage from the oblique side view can make the viewing angle wider. The polarizing element is made by amplifying a thin film absorbing a dye, and the magnifying effect is easily restored by thermal vibration. It is considered to be heat resistant, but the dye molecule of the polarizing film of the present invention uses a benzene nucleus as a skeleton, so that Cross-linking, strong bonding force, so thermal vibration is difficult to damage, and thermal properties. The arrangement direction of the supramolecular complex is in place due to the surface state of the substrate, and the method of manufacturing the polarizing film of the present invention is in the pre-processing step The surface is subjected to directional treatment to have directional anisotropy, and the arrangement direction of the supramolecular complexes on the surface of the coated plate can be controlled in an ideal way, which can improve the polarizing performance of the polarizing film. As a result of the molecular complex, the polarization performance can be improved. In the direction perpendicular to this direction, the light-binding performance of the supermolecular complex is reduced by about 50%. The liquid crystal cell of the polarizing film of the present invention It is formed by printing the polarizing film with the dichroic dye oriented on the inside of the unit cell, so the viewing angle can be enlarged only by the basic degree of the glass. Because the polarizing film is protected by the glass substrate, it causes defects on the polarizing plate. Hard coating treatment for attached works or static electricity charging are not required. 20 1224687 It is also possible to improve the humidity resistance and financial heat resistance, which are important characteristics for expanding the use of LCDs or maintaining display quality. 【 Brief description of the drawings] Fig. 1 is a schematic diagram of a manufacturing device for implementing the polarizing film of the present invention. Fig. 2 is an example of the display color and molecular structure formula of a dichroic dye.

Figure 3 is a schematic diagram of a supramolecular complex. FIG. 4 is a diagram of the alignment state of liquid crystal molecules of a dichroic dye. Fig. 5 is a diagram showing an example of a pattern of fine grooves. Figure 6 is a schematic diagram of mechanical processing. Figure 7 is a conceptual diagram of chemical treatment. Fig. 8 is an explanatory diagram of a coating film direction and a wiping direction ^ Fig. 9 is an explanatory diagram of a coating film direction and a substrate setting direction. Figure 10 is a cross-sectional view of a liquid crystal cell embodying the present invention.

FIG. 11 is a flowchart of steps for implementing the liquid crystal cell manufacturing method of the present invention. Figures 12 and 12 are a step plan view and a step cross-sectional view of the method for manufacturing the liquid crystal cell of the present invention. [Simple description of component representative symbols] 1 version 2 version body 3 filler 4 blade 21 1224687 5 table 6 glass substrate a micro groove b convex part c discontinuous part 7 roller 8 cloth 9 transparent electrode 10 Si〇2 film 11 Polarizing film 12 Orientation film 13 Liquid crystal material 14 Sealing material 15 Spacer 101 Washing, 102 Washing, 103 Pre-treatment 104 Polarizing film 105 Stabilization 106 PI printing 107 Etching, 108 Wiping place 109 Interspersing room 110 Sealing printing ITO patterning Si02 Film printing printing, drying, cleaning, drying, hardening cleaning, drying separator brush

22 1224687 111 Laminating 112 Hot pressing 113 Cutting and cutting 114 Liquid crystal injection and cell washing 115 Inspection

twenty three

Claims (1)

1224687 Patent application scope: 1. A polarizing film manufacturing device, characterized in that an aqueous solution of a dichroic dye forming a concentration-transfer liquid crystal is used as a color paste, and the color paste is applied to the printing direction along the printing direction. A plate having a plurality of fine grooves to form a thin film, and the film is transferred and coated on a substrate from the plate to form a polarizing film. 2. The device for manufacturing a polarizing film as described in item 1 of the scope of patent application, wherein the chemical formula of the aforementioned dichroic dye is: 3. The manufacturing apparatus of the polarizing film according to item 1 of the scope of patent application, wherein the chemical formula of the dichroic dye is: 24 1224687 4. The manufacturing device of the polarizing film according to item 1 of the scope of the patent application, wherein the chemical formula of the aforementioned dichroic dye is: 5. The device for manufacturing a polarizing film according to item 1 of the scope of patent application, wherein in the aforementioned fine grooves, the convex portions of the dotted line are raised to form the concave portions and convex portions of the grooves, and discontinuous portions of the convex portions of the dotted lines , And the adjacent convex portions are arranged in such a way that the phases of the adjacent convex portions are alternately staggered. 6. The device for manufacturing a polarizing film according to item 5 of the scope of patent application, wherein the convex portion is formed in a raindrop shape in a plan view. 7. The device for manufacturing a polarizing film according to item 5 of the scope of the patent application, wherein the convex portion is formed into a rod shape in plan view. 8 · —A method for manufacturing a polarizing film, which is a polarizing film that Jiang Xiangzhan Zengdan will apply a coating liquid of a chromic dye that forms a concentration-shifting liquid crystal on the substrate surface and impart a shearing force to the substrate surface. In the film manufacturing step, a pre-processing step is provided in the step of applying the coating liquid, and in the pre-processing step, an orientation treatment is performed on the surface of the substrate. 9. The method of manufacturing a polarizing film as described in item 8 of the scope of patent application, wherein the orientation treatment is a mechanical treatment that deforms the shape of the surface of the substrate and forms a plurality of fine grooves in a certain direction. 10. The method for manufacturing a polarizing film according to item 8 of the scope of the patent application, wherein the aforementioned orientation treatment is a chemical treatment that imparts orientation anisotropy to an orientation layer formed by coating a substrate with a chemical. 11. The method for manufacturing a polarizing film as described in item 10 of the scope of application for a patent, wherein the method of imparting the aforementioned anisotropy is a wipe process in a dry mode and an air knife in a wet mode. 12. The method for manufacturing a polarizing film according to item 10 in the scope of the patent application, wherein the aforementioned chemical is a dilute aqueous solution of a nonionic surfactant β 13. The polarizing film according to item 10 in the scope of the patent application The manufacturing method, wherein the aforementioned chemical is a thin water 26 1224687 solution of hydrophilic polyethylene glycol (peg). 14. The method for manufacturing a polarizing film as described in item 10 of the scope of patent application, wherein the aforementioned chemical is a hydrophobic linear fatty acid. 15. The method for manufacturing a polarizing film according to item 10 of the scope of the patent application, wherein the aforementioned chemical is a dilute aqueous solution of an organic silane coupling agent. 16. A type of liquid crystal cell, which is formed by directly or indirectly printing the polarizing film of a dichroic dye forming a concentration-shifting liquid crystal in a certain direction on the inside of the cell. 17 · —A method for manufacturing a liquid crystal cell, comprising: a patterning step of forming a transparent electrode on a cleaned substrate; applying an orientation film on the substrate; performing an orientation processing step of firing and wiping treatment; The substrate bonding step of bonding two substrates, breaking the bonded substrates into a predetermined size panel panel disconnecting step, injecting liquid crystal material into this panel, and injecting liquid crystal material into the panel, and pasting the two sides of the cell that passed the panel inspection, sticking the polarizing plate The polarizing plate sticking step is performed. In the liquid crystal combination step thus formed, a polarizing film is printed on the substrate surface to stabilize it before the orientation processing step. A polarizing film printing and stabilizing step is provided. Those who do not need the aforementioned polarizing plate sticking step. 1 8 · As described in the “Paint Patent Scope”! The method for manufacturing a liquid crystal cell as described in item 7, wherein in the processing step of forming the polarizing film described above, the pattern of the facing film applied on the polarizing film becomes an anticorrosive coating Layer, which is used to engrave the polarizing film outside the display field. 1 9 · The manufacturing method of the liquid crystal cell described in item 7 of the declared patent scope, wherein 27 1224687 is applied in the processing step of forming the aforementioned polarizing film. After the polarizing film is dried, the polarizing film is stabilized with a BaCl 2 aqueous solution (8 to 20 wt%). 28