TW200428039A - Method for manufacturing optical layered body, elliptically polarizing plate and circularly polarizing plate comprising the layered body, and liquid crystal display - Google Patents

Abstract

A method for manufacturing optical layered body is characterized in comprising the following processes: a first process of adhering a liquid crystal substance layer having the alignment of the liquid crystal fixed and being formed on an alignment substrate to a removable substrate via an adhesive layer, and then peeling the alignment substrate off to transfer the liquid crystal substance layer onto the removable substrate to obtain a layered body (A) consisting of the removable substrate/adhesive layer/liquid crystal substance layer; or a first process of adhering a liquid crystal substance layer having alignment of the liquid crystal fixed and being formed on an alignment substrate to a removable substrate 1 via an adhesive layer 1, stripping the alignment substrate to transfer the liquid crystal substance layer onto the removable substrate 1, adhering the liquid crystal substance layer and a removable substrate 2 via an adhesive layer 2, and stripping the removable substrate 1 to transfer the layers onto the removable substrate 2 to obtain a layered body (A) consisting of the adhesive layer 1/liquid crystal substance layer/adhesive 2/removable substrate 2; a second process of laminating a polymer stretched film and a polarizing plate via a self-adhesive (adhesive) layer to obtain a layered body (B) consisting of the polarizing plate/self-adhesive (adhesive) layer/polymer stretched film; and a third process of stripping the removable substrate of the layered body (A) before or after laminating the layered bodies (A) and (B). The above manufacturing method is provided for layering an optical element consisting of a liquid crystal substance layer having no supporting substrate film.

Description

200428039

V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a method for manufacturing an optical bulk body suitable for various optical parts. The present invention also relates to a circularly polarizing plate or an elliptically polarizing plate formed by the optical laminated body produced by the present invention 'and relates to a liquid crystal display device having the above-mentioned circularly or elliptically polarizing plate. [Prior art] The excellent thin layer used to fix the lower part by the type structure is transferred to Kaiping 4-without using the method, it is also written in the same method of 4 daggers. It is written by a non-supporting device and a liquid crystal compound. The nematic liquid crystal material ’s color compensation or viewing angle performance is conducive to the relevant manufacturing method of the film. It was written to support both the above-mentioned support substrate 5 7 0 1 7 when the above-mentioned support substrate was requested for liquid crystal display. On the one hand, the substrate substrate film is a thin film composed of a single optical alignment layer using an optical method, especially an alignment film composed of a nematic structure or a nematic hybrid structure. It is often used as a liquid crystal display element compensation element or optically active optical element, and it has high performance and light weight of various display elements. Among them, a light-transmitting substrate method (such as a special substrate) that functions as a liquid crystal substrate formed on an alignment substrate is proposed. Japanese Patent Application Laid-Open No. 4 -1 7 7 2 1 6). In addition, the durability of optical components made of thin-film liquid crystal materials is thinner and lighter. Ping 8-27849 Publication 1). An optical element composed of a material layer can be obtained by peeling and re-peeling the substrate after the liquid crystal material layer obtained by the above-mentioned phase plate alignment is passed through an adhesive. Various display films that have begun to be applied to liquid crystal display devices have more functional requirements for their optical properties. The use of films has been met, so many organic products

200428039 V. Description of the invention (2) Application of the film. For example, the parallax film for color compensation in STN liquid crystal display devices is a polymer stretched laminated film represented by polycarbonate, and the circularly polarizing plate for transflective reflective liquid crystal display devices has a quarter wave plate and a half wave. ^ ^ Wide-area 1/4 wavelength plate obtained by lamination, or wide-area, ancient artifacts obtained by laminating a cholesterol-type film (Cholesteric) film with a different selection wavelength =] / The above is composed of a 1 / 4-wave plate and 1 72 The wide area obtained by the lamination of the wavelength plate] / 4 f follows from the enlargement of the sound device of the method disclosed in Japanese Patent No. 3236304; the thin force of the "mobile phone or mobile information" on the optical film of the display device: Those who are still constrained by the optical characteristics, such as thinning of the inter-knife stretch film, can avoid the increase of A, = the limit in the process, so thick sound when laminating: it becomes a considerable problem. Yudu Wuma adopts unsupported lambda II in Shangcheng BB g, although the light is not established as described in JP-A-8-27849 1 Sai ^: The formula of the optical element composed of the liquid crystal material layer ϋ :: 汔Laminated method for industrial manufacturing. ^ Method, [Summary of the invention] The problem to be solved by the invention% The present invention aims to provide a high-performance only ..., method by using a polymer stretch film at the same time. ^ The goal is to provide a substantially thinner I: J thinner. That is :: learn optical film, deep inspection ;: ΐ; ^ can be composed of liquid crystal material layer = 甶 ..., the liquid crystal material layer supporting the substrate ---, said Ting composition light 7042-6079-PF (N2) .ptd Page 7 V. Description of the invention (3) The method of layering the components. Means to solve the problem; basin, the present invention first provides a separating beauty of the optical layered body; the connection consists of at least the following steps: (1) by re-peeling the cattle soil ΛΛ / liquid crystal Preparation of a layered body composed of a material layer = on: an alignment fixed liquid crystal material layer on the L substrate is then passed through: layer transfer is re-peeled: 2 peel) away: the alignment substrate makes the liquid crystal material layer an ancient thin film The step of preparing the laminated body ⑻, and the diamine is passed through the adhesive layer (adhesive layer) followed by the polarized light, and then the laminated body (A) and the laminated body (B) are laminated before or after The third step of peeling the peelable substrate in the f-layer spear shell (A). — Yu Zhiguang II? Λ, ... Adhesive agent 2 / re-peelability Α 柘 2 έ # Preparation step of the laminated body (Α) composed of a layer 1 / liquid crystal material layer / west ~ substrate, abdominal »directional fixed liquid crystal on the soil plate Substance connection: After re-releasing the substrate i, remove the alignment base and attach it on the re-releasable substrate, and then pass through = = then on the re-releasable substrate 2 and peel: write ^ ^ On the re-peelable substrate 2; (2) a laminate composed of s ^ by a polymer stretch film / polymer stretch film (adhesive + Μ Μ ^ 4 pancreas) The preparation steps are as follows: connected through an adhesive layer (adhesive layer) before the laminated body (A) and the laminated body (B) are laminated or 200428039

"Removing the peelable substrate in the laminate (A) x" The present invention also provides a method for manufacturing an optical laminate. The above-mentioned liquid crystal material layer is formed by having an optically correct structure. The nematlc alignment formed in the state is fixed and the substance is in the liquid crystal layer. The formed liquid crystal material is characterized in that it is formed by an optical layered body prepared as described in the present invention. The present invention also provides an elliptically polarizing plate formed by the manufacturing method described in item 1 or 2 of the patent scope. The invention of the patent provides a circular polarizing plate, the manufacturing method described in the range 1 or 2 is characterized in that the invention is provided by an optical layered body as obtained in the application. The invention also provides a liquid crystal display device, which is characterized by : At least the elliptical polarizer or the circular polarizer as described above. ^ In addition, the above "/" refers to the interface between the layers, and it is expressed in the same way below. [Embodiment] The present invention will be described in detail below. The alignment-fixed liquid crystal substance layer used in the present invention is a fixed layer obtained by immobilizing a liquid crystal substance in an aligned state. The immobilization method is, for example, rapid cooling in the aligned state of a polymer liquid crystal substance to a glassy state, or a reactive functional group. After the low-molecular or high-molecular liquid crystal substance of the base is aligned, a functional group reaction (hardening, bridging, etc.) is performed to fix it. The above-mentioned reactive functional groups such as vinyl, (meth) acrylic, and ethylene

Page 9 200428039 V. Description of the invention ⑸ =, epoxy, epoxy, fluorenyl 1 group, amine group, meridian group, isoacid-methyl group, acid condensation, etc. The functionalization reaction is performed in a corresponding manner. : The liquid crystal material used for the liquid crystal material layer can be used as a liquid crystal thin film, wall, or manufacturing method from a wide range of low-molecular liquid crystal materials or high-molecular liquid crystal materials. The molecular shape of the crystalline material is j ^ -shaped or disc-shaped. For example, a circular liquid crystal compound having a disc nematic liquid crystal property can be used. Before the immobilization of the liquid crystal material layer, the liquid crystal phase can be nematic, twisted nematic, Yuezhan Guyu type, this nematic, mixed twisted nematic, disc nematic, smectic phase (Smectic) and so on. As the fluorene molecular liquid crystal shell, various main chain polymer liquid crystal shells, side chain polymer liquid crystal substances, or a mixture thereof can be used. Main-chain polymer liquid crystal substances such as polyester, polyamide, polysterate, polyurethane, hydrazine and succinic acid, and polybenzylamine (β enziidaz). 1 e), Polybenzoxazole, benzithiazole, azomethine, polyesteramine (polyestercarbonate), polyestercarbonate, Polyesteramide or the like or a mixture of the above-mentioned polymer liquid crystal substances. Side-bond polymers such as polyacrylic, polymethacrylic, polyethylene, polysiloxane (P ο 1 ysi 1 ο X ane), polyether, polymalonate, polyester It is equal to a polymer liquid crystal substance having a side chain bonded to a straight or cyclic main chain, or a mixture of the above liquid crystal substances. Among the above-mentioned liquid crystal substances, the ease of synthesis and alignment is considered to use the main chain

7042-6079-PF (N2) .ptd Page 10 200428039 V. Description of the invention The poly (@) system in the (6) polymer liquid crystal material is preferred. Small products such as saturated benzoic acid, unsaturated benzoic acid, biphenyl carbonic acid, aromatic oxy carbonic acid, Schiff's base type (Shiffsa 11), bisazomethineimine compounds ( (bisazomethine), azo compounds, azo oxide compounds, cyclohexyl ester compounds, sterol compounds (sterols) and other liquid crystal compounds with the introduction of the above-mentioned reactive functional group at their terminals or cross-linked compounds A composition of the aforementioned compounds exhibiting liquid crystallinity. In addition, the discotic liquid crystal compound may be a triphenyl ene or a trimeral. In addition, it is preferable that the functional group or site where each compound in the liquid crystal substance is subjected to heat or light to cause a bridging reaction so as not to hinder the development of liquid crystallinity. The functional group capable of carrying out a bridging reaction is the above-mentioned various reactive functional groups. The alignment and fixing process of the liquid crystal substance layer is to first apply the above-mentioned liquid crystal substance or various compound compositions optionally added on the alignment substrate in a molten state, or apply the solution of the above composition to the alignment substrate, and then pass the coating film. Drying, heat treatment (alignment of liquid crystal), and fixing the alignment of liquid crystal by light and / or heat treatment (polymerization, bridging) and other methods as needed. The solvent required for the preparation of the solution is only required to dissolve the liquid crystal substance or composition used in the present invention, and the others are not particularly limited. Generally, ketones such as acetone, methyl ethyl ketone, and butoxyethylalcohol can be used. ), Ether alcohols such as hexyloxy ethyl alcohol, methoxy-2-propanol, alcohol ethers such as ethylene glycol dimethyl ether, diethylene glycol diethyl ether, ethyl acetate, ethyl ethoxypropyl acetate , Esters such as ethyl lactate, phenols, phenols, etc., dimethylformamide (N, N-Dimethylformamide), dimethyl

7042-6079-PF (N2) .ptd Page 11 200428039 V. Description of the invention (7) Acetylamine (1 \ 1,1 ^ -〇 Soil 11161: 1 ^ 1806 ± 81111 (16), methyl ratio N-methy lpyr idine and other halogenated hydrocarbons such as chloroform, tetrakiethane, and dichlorobenzene, or mixtures thereof. In addition, in order to form a uniform coating on the alignment substrate, it can be added to the solution. Surfactant, defoaming agent, leveling agent, etc. Add dichroic dyes or common dyes to achieve coloring without hindering liquid crystal properties. In addition, in order to form a uniform coating on the alignment substrate, it can be used in solution Add surfactant, antifoaming agent, leveling agent, etc. You can add dichroic dyes or ordinary dyes to achieve coloring without hindering liquid crystal properties. $ Regarding the coating method, any method can be used. For example, Dye coat method, dip coating method (d method. After coating, it can be heated or blow-dried). The film thickness of the coating after drying is 0 m 'more preferably 0.3_10 // πι.' Here It is easy to have poor academic performance, and the liquid crystal is later determined by heat treatment, etc. depending on the situation. The liquid crystal phase transition temperature is achieved by heating to the liquid's own alignment performance. However, usually at about 10-300 ° C, the liquid crystal cannot be aligned, which is too harmful to the alignment substrate. Time, preferably 10 seconds to 30 minutes. Ratio 3 can ensure the uniformity of the coating. Known square cloth (r 〇1 1 〇at) method, dye coating iP coat) method, spin coating and other square style The method helps to remove the solvent (dry • U 0vm, preferably 0.2-20 // outside the range, the alignment of the light quality of the obtained liquid crystal material layer is often uncertain. The temperature range of the solid phase where the liquid crystal is aligned and aligned The optimal conditions and limit values of the heat treatment of the liquid crystal material are different. It cannot be said that it is better to be between 30 and 2500 ° C. When the temperature is too low and the temperature is too high, the liquid crystal material will be degraded and it will be dangerous. Time, usually within 3 seconds to 60 minutes, the alignment of the liquid crystal may not be complete

200428039 V. Description of the invention (8) — successful, more than 60 points and unfavorable mass production, so both are not good. After the alignment of the liquid crystal material is completed by heat treatment, it is then fixed on a composite clay plate. The above-mentioned alignment substrate is, for example, polyimide, polyimide, amine extractor, polyphenylene sulfide, polyphenylene ether, monopoly, polyimide, PES, polymaple, polypair Films made of materials such as ethylene phthalate, ρΕΝ (also called maple P: lye ^ ylene Naphthalate), polyarylate, tri-frame lactate, phenolic resin, etc.黾 Fiber, if the above-mentioned film is not treated to make it heavier than the liquid crystal material used in the present invention, sometimes it can achieve sufficient output function, thermal extension, and artificial, ";; the same as :: the film is added at an appropriate temperature Rubbing treatment, or wiping in 5 directions, that is, the so-called alcohol, Shiyaki coupling agent, etc.-compounding, the upper side is made of polyurethane, polyethylene, silicon oxide, orthorhombic evaporation, ; f constitute the alignment film for rubbing to show. Or combine the above methods so that the alignment can be formed on the surface or various glass plates can also be used as the alignment 2 = Ming, iron, steel and other metal plate alignment substrate film alignment ^ = The processing method can be appropriately selected in any direction, which is not particularly limited. The above-mentioned, the liquid crystal thin film on the alignment substrate = for processing. Especially at a predetermined angle of the MD direction of the processing film, Jiajia chooses this long The continuous thin film with this predetermined angle alignment processing: the alignment processing should be carried out from the oblique direction. The optical properties of the axial direction of the 'night crystal film can play its best,' said, can be used for roll-to-roll with long film 7042 -6079-PF (N2) .ptd 苐 13 200428039 V. Description of the invention (9)

Lr; u—t0-r ° ⑴ lamination 'or can greatly improve product access: or adhesive layer! It is connected to ^^ 生 ^ ', and then connected to the substrate or the re-releasable substrate 1 through the adhesive layer, salt substrate wp. The gluing layer or the adhesive layer 1 needs to have sufficient adhesive force to the liquid crystal material acoustic substrate (or re-peelable substrate 1). The re-peelable substrate in the re-peelable step, which can be used for subsequent steps. On the premise of the characteristics, it is not known that the adhesive is limited when the liquid crystal substance delaminated substrate 2 is used. The following description will be used for re-stripping f * 望 + Layer 2 with the same adhesive. System, epoxy tree: ^:: 2 resins, methyl acrylate resins, polyethylene resins, and the like: η !, rubber, ammonia Or not. Adhesive layer 1 and the bibliographic description can be composed of: before, should be :: ,,; == change) The conditions will depend on the reaction conditions that constitute the adhesive. For example, different: the appropriate photoinitiator can be selected individually and supplied with a metal price. It is preferable to add a variety of conventional krypton lamps, argon lamps, lasers, and lasers: pressurized mercury lamps, low-pressure mercury lamps, and initiators. Absorb Θ to do! _ Is 1 0 1 0 0 0 m J. However, when there is a significant difference in the light source spectrum, or when the reactive substance itself has the absorption capacity of the prior wavelength, it is not within the above limited range. 7042-6079-PF (N2) .ptd Page 14 200428039 V. Description of the invention (ίο) At this time, an appropriate photosensitizer can be added, and a light initiator having an absorption wavelength phase or higher can be mixed for use. Electron beam hardening type is used. The two kinds of speed voltage are between 10kV and 200kV, preferably between 50kv and 100k. —Generally, the thickness of the adhesive layer is based on the aforementioned factors such as the strength of the adhesive and the use temperature. [一:; \: component, then / 10 is outside the range of m °. The adhesive strength is easy to be insufficient. ' Exudative adverse conditions. Do not know the range M of the adhesive properties mentioned above. Various microsecond and surface modifiers can be added to control its optical properties. 1. Erosiveness. j Low-relief properties of the soil, such as particles that are in contact with the composition, conductive particles that can no longer impair the transparency, or resistance that can be improved, such as silicon particles, aluminum particles, and indium oxide resin particles. The particles of the admixture have different refraction to improve the anti-charge performance. Specifically, tin particles, silver particles, or various synthetic surface modifiers need to have good compatibility with the adhesive, without affecting the 1: 1 or optical properties after hardening, #kind is special ' Limit: And :: Ionic, non-ionic water-soluble interfacial active substances, oil-soluble polymer surfactants, fluorine-containing surfactants, Shixi 4 branched genus surfactants, reactive surfactants, etc. . Π Fluoride, such as a good alkyl compound, a-polyether compound, etc. ′ Surfactant, or organometallic interface activity such as silicon and the amount of the agent added, is preferred for the adhesive

It is 0.05 to 5% by weight, preferably 0.3 to 3% by weight. Add less than this J

XL likes sucking (Η) points. Another force 2 is insufficient, but too many people will cause defects such as subsequent reduction in high yield without compromising the effect of the present invention. Absorbents and other additives ::: internal, for example, oxidants, UV-based pentyl Hdt: Π substrates such as polyethylene, polypropylene, 4-methylene chloride, arsonamine: =, f aramide, polymer Phenylamine, Polyfluorene (PES), Polysulfone, Poly # Etheramine, Polyether Maple Xylene, Polyvinyl Ethylene, Polyphenylene Sulfide, Polyoxy Vinegar, Polyarylene Fluoride :: PET ), Polybutylene terephthalate, polymethyl propylene: A \ purpose ,; ΐ ;: poly s ;, poly carbonate sl, poly fluorene resin, trisaline fiber :: Amorphous polyethers are especially thin films made of ^ %% resin. Inspection of medical defects; second film: its transparency helps light esters, poly 1 7 P < methylpentane-1 resin, polymethacrylic methyl polyphenylene terephthalate, polycarbonate carbonate, poly bond maple ( PES), polyaromatic, # material heart. Nylon, norbornene-based resin, triacetate or epoxy resin, etc .: ^ The above plastic film has a moderate re-peelability, and it can be identified on its surface in advance, or it can form an organic or inorganic film. In addition, they also focus on the surface: chemical treatment such as inspection, treatment, or surface corona 'physical treatment. ", Σ weekly re-peelable substrate peelability, it can be said that plastic film, ya W ... valence knife edge does not affect π ... or adversely affects peelability, its type, added benefits are special卩 卩 2 '... Ping said that this is called π π color and other horse premise' its type ..., special limits 具体, such as silicon particles, aluminum particles and so on. Index of added amount Two = agent or surface modifier. The addition of the lubricant is based on inspection without optical defects or miscellaneous U: soil ATU ~ '200428039 V. Description of the invention (12) The haze of the re-peelable substrate is generally 50% or less, which is It is preferably below 30%. Too little addition has no obvious effect, and too much can easily affect the inspection of optical defects. Various other conventional additives can be added as needed, such as anti-blocking additives, antioxidants, antistatic agents, heat stabilizers, impact modifiers, and the like. Regarding the peeling force of the re-peelable substrate, even if it is a re-peelable substrate of the same material, the peeling force is affected by factors such as the manufacturing method, the surface state, and the adhesiveness with the adhesive used. Generally speaking, the peeling from the adhesive layer The force (180 peeling, peeling speed 30 cm / min, measured at room temperature) is in the range of 38-12N / M, preferably 0.38-8ON / m. The peeling force is smaller than the above-mentioned range f '. When the liquid crystal material layer on the alignment substrate is bonded to the re-peelable substrate, the interface of the #peelable substrate cannot be peeled well when it is applied to the substrate. The transfer on the peelable substrate is incomplete; when the peelable substrate is peeled off, the liquid crystal material layer may be damaged or peeling may not be performed. Better for two. : Peeling: The thickness of the substrate also affects the releasability. When the thickness is around, the peeling point is preferably 25-5 "m. The thickness exceeds the mechanical strength of the above film. When it is thin, it may cause troubles such as cracking in the process used in the present invention. For example, the acid-based, polypropylene, and molecularly stretched films are, for example, fiber-based, polycarbon-based, polyether-based, polyether-based, and poly-based. Maple-based, polyvinyl alcohol-based, polyaromatic ester phase difference film. = F-polyaliphatic ester-based uniaxial or biaxial extension /, and polycarbonate-based, borneol-based diluent, etc.

7042-6079-PF (N2) .ptd Page 17 200428039 V. Description of the Invention (13) Poly-Fat 糸 —Kang i τ glazed stretched 溥 film is easier to manufacture, thin film 光学 or optical properties are better. There are no particular restrictions on the direction in which the three winners can extend. In particular, when using a 刑 molecular weight stretched film of 刑 1,000 μM squared ^ ^!, It is better if I $ 4 long continuous film MD large a ^ dry and 1 soil far to choose this :: Bede Garden A given oblique angle of the direction (diagonal extension in the TD direction (horizontal extension) is better. Using this predetermined _ $ 朝 探, your ancient Ba Gong μ from Chu Wang Ping 乂 1 soil ~ Use this orientation treatment to make the question / Knife stretched film can be used in combination with the liquid crystal film, the axis h, the center of the best optical characteristics of β, I Γ, and the polarized sheet can be exerted (ro11 "when the film is ordered in the axial direction, it can be rolled with the long film Anti-roll

Cr0ll-t0-roll) 's best practices, "marriage efficiency. “Method 5” or 'can greatly improve the use of the polarizer used in the present invention, as long as it can achieve the objective m of the present invention, you can use the common polarizers used in liquid crystal display devices, m looking for polarizers, vinyl acetate copolymerization Part of the body is made of a hydrophilic polymer film composed of a hydrophilic surname polymer, an extended polarizing plate that absorbs iodine and / or dichroic pigments, a polyvinyl alcohol alignment film such as a dehydrated product of PVA or a deacidified product of polyethylene salt Composed of polarizing plates. It is also possible to use a reflective polarizer. The aforementioned polarizing plate can be used alone as a polarizing film, or a transparent protective layer can be designed on one or both sides of the polarizing film to improve strength, moisture resistance, and heat resistance. The transparent protective layer is a laminated body obtained by directly laminating a transparent plastic film such as polyester or triacetate or laminating through an adhesive layer, or τξ: a resin coating layer, an acrylic or epoxy-based light Hardened tree moon layer. Protection of both sides of a polarizing film when a transparent protective film is provided

7042-6079-PF (N2) .ptd Page 18 200428039

5. Description of the invention (14) The films may be the same or different.体 的 制造 方法 The manufacturing method of the body. Alas, the following examples will be described in detail below. The manufacturing method of the optical laminated liquid crystal material layer of the present invention is unlimited. Method 1 First, the solvent is removed on the alignment substrate as needed, and the alignment of the liquid crystal material layer is fixed by heating. An adhesive layer is formed on the adhesive layer, and the adhesive substrate is adhered through the adhesive layer. On the adhesive layer substrate. The method is to form a coating layer of liquid crystal material, to form a liquid crystal alignment, and in a proper manner, the liquid crystal material layer is fixed and aligned to cause the liquid crystal material layer to react with (remove) repeatedly, and then the alignment horse is peeled to protect the liquid crystal material. Set a transparent protective layer: the liquid crystal material layer is selected from the aforementioned adhesives. 2. The upper surface is protected by a film. Transparent protective layer crystalline material layer (laminated on a c-type substrate via an adhesive layer. 1. Releasable base laminated structure holding the parent, for example: 2 and then peel off the palpitant layer " liquid crystal material layer, etc. I: "agent layer" means "liquid crystal material layer / adhesive layer." It is used to represent the interface between layers. The following method is used in the same way. 2 200428039 V. Description of the invention (15) # + I f on the substrate The coating of the liquid crystal substance is formed by an appropriate method: To remove the solvent, use heating to achieve the liquid crystal distribution: To fix the alignment of the liquid crystal substance layer, I 乂 Tonda method sound. Pile ^. ^, M ^ and on the alignment substrate The liquid crystal material is obtained: the connector 'passes the adhesive layer in the liquid crystal material layer fixed in alignment! Make the liquid crystal material layer and one of them ^: 1 = f layer 1 reacts (hardened) and then peel the alignment substrate 1 against the mountain, or An adhesive layer is formed on the liquid-liquid material layer, ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ The quality layer is in close contact with the -re-peelable substrate 2. Carved 2 = Carved layer 2 makes liquid crystal objects S $ W ^ Mountain Peel off the re-peelable substrate 1 to obtain, 1: on the re-peelable substrate 2 'from the adhesive layer " The laminated body 构成 composed of the substrate 2. The s layer / connector film. The laminated body 或 may be provided with a transparent protective layer or attached with a surface protective film f to explain the method for laminating the optical laminated body of the present invention. The third step system It is used to manufacture the above-mentioned laminated body (A). Next: iif passes the high stretch film through the adhesive layer (adhesive layer), and the plate, and the polarizing plate / adhesive layer (the adhesive agent * q 八 子 Extends) Laminated body (B) made of a thin film, and then ^ layer) / Nanfen Step 3 Use a tincture (adhesive) to attach the laminated body to the layer (B) & and peel off the rest. :, To obtain the optical layer of the present invention. The re-releasable substrate made of substrate 2 is peeled off, or the re-releasable substrate is laminated from the laminate (A) After peeling off, s, beans, and mouth, the following examples can be obtained. · 1 · Polarizer / Adhesive (then dense) / Thick film / U-shaped layer / Back molecular extension film / Adhesive ( Continue to 200428039 V. Description of the invention (16) Adhesive agent) layer / Liquid crystal material layer / Adhesive agent layer; 2 · Polarizer / Adhesive agent (then fasting) Ancient eight agent) layer / Adhesive layer / Liquid crystal material layer Ada stretch film / adhesive (connected to 3: two plates connected # 二 齐: adhesive) layer / polymer stretched film / adhesive (connected to f :! Λ 者 agent layer / liquid crystal) Substance layer / adhesive layer • Polarizer / adhesive (adhesive) Acoustic / speaking agent) layer / adhesive layer / η = 溥 film / adhesive (then layer night and day material layer / adhesive layer) The liquid crystal material layer on the alignment substrate and the re-peelable substrate on the alignment substrate in the present invention may be :: ;;: shell layer or rewritten on the layer, so that a plurality of liquid crystal layers are laminated into the adhesive agent) into the process of the present invention. In the report, the ancient times "A bar layer served as a guide. When it still exists, the release film of the adhesive having the release film on the substrate or the re-peelable substrate of the second- and fifth-rear substrates is re-converted; so that: =: ΐ adhesive can not only be used as the optical surface of the present invention. Arbitrary up and down ::: shell layer: adhesive for jin, which is affixed to the invention by 3 degrees of freedom in manufacturing. The layer 'makes a peelable release layer on the liquid crystal material layer in advance to form a release layer. When it becomes possible, it becomes possible to change the appearance of the thin layer of the crystalline material (expansion 3 :; I;:, and it can have a suppressing liquid type. The agent is not particularly limited. # 果. Here the isotropic ph I% acid system, petrified cellulose system, ρ ί For example, "oral body and its mixture, etc .. The release layer has a film thickness of 0 :: system compound 卞· 0 4 ϋ // m, preferably 7042-6079-PF (N2). Ptd Page 21 200428039 V. Description of the invention (1 is 0.5 / zm or more,] 〇Απ] preferably 50 t or more * A a wide temperature range of 20 ° C or more, and the optical characteristics are better. When the layer of 1% is not damaged, the thickness of the liquid crystal substance is outside the above range. Yes. Film thickness or glass transition temperature I also do not tend to use it. The double fruit is insufficient, because it does not conform to the thin layer IJ described in the present invention. The release layer can also be controlled by adding ::: plasticizer, lubricant, etc. :: It can be partially hardened, dilute, Polyacrylamide, poly-terephthalate method, etc. 'Coating and pressing on a sheet of film in advance. 4 Releasable substrate:' Then by an adhesive (adhesive) Layer or transparent release layer after peeling off the releasable substrate film. A. The protective layer is tightly adhered. The photon laminate of Ding A can have one or more anti-reflection layers in addition to the polarizing plate and the liquid crystal material. Anti-glare layer = outer layer, also layer. Adhesive for bonding or adhering to the polarizing plate, cadmium layer, light diffusion level is not required, and there are no other special restrictions. It can belong to optics and so on. Among the agents, the optical layered body prepared by the above method is selected and applied, and the total thickness is preferably 3 50 // m or less, and more preferably 3〇 (). It is not good beyond 45 °, because it does not conform to the thin type of the present invention. In the above-mentioned range, the optical layered body of the present invention can be used as compensation components of various liquid crystal display devices, optical parametric polarizing plates, etc. according to the number of liquid crystals in the above range. Mouth polarizing plates and circles constitute optical The sound of the liquid crystal material of the laminate is fixed as 7042-6079-PF (N2) .ptd Page 22 200428039 V. Description of the invention (18) Nematic liquid crystal material layer The function of a phase difference plate, and an optical laminate composed of the liquid crystal substance layer The body can be used as a compensation plate for a transmissive or reflective liquid crystal display device such as g T n type, D n type, 0CB type, and HAN type. 'The alignment is fixed to a nematic hybrid liquid crystal material layer, which is seen from the front. The retardation can be used as a retardation film or a wavelength plate. Asymmetry can be caused by the tendency of the retardation (the inclination of the molecular axis in the thickness direction of the film), and it can be used as a part for improving the viewing angle of liquid crystal display devices such as TN type. Use 0

A liquid crystal material layer having a function of a 1/4 wavelength plate can be used as an anti-reflection film for a circular polarizing plate, a reflective liquid crystal display device, an EL display device, etc. by using a combination with a polarizing plate as described herein. In particular, in order to effectively obtain the function of a wide-area 1 / 4-wavelength plate including the 〒-light region, the conventional method can make the complex refractive power of 55 ⑽ single light differ by about 1 / 4-wavelength from the 1 / 4-wavelength plate and 55. _Monochrome first T, flex 1! The half-wavelength plate with a phase difference of about 1/2 wavelength has a late phase axis g ΐ Γ Middle: ί layer: this method has been widely used in reflective LCD display 3 ' The method of preparing thin and light optical laminates by using the method of the present invention can be used to obtain the conventional single-layer eight-layer M from the + -wavelength t-band region in Japan. Two; = ㈣ not easily produced by the film

The delay value of the long board-generally ^ is more preferably ⑵-15-. 1 heart is better 22 " 8〇 ·. 1/4: ° = 2 is preferably 2 ° ". . -, When the above range is exceeded, it may cause 'Ye ::' to delay the wavelength range of the wavelength plate in the range, and delay # 伤; ^ Li / night, day, day, day, day, day, day, day, day, day, day, day, day, day, day, day, day, day, day, day, day, day, night, night, night, night, night, night, night, night, night, night, night, night, night, night, night, night, night, night, night, night, night, night, etc., and may cause unnecessary colors. The retardation value is the product of the complex inflection Δη and the film thickness d.

200428039

When the liquid cholesterol alignment or smectic phase in the optical layered body of the present invention, the film, reflective filter, and various anti-counterfeiting material crystal material layers with selective reflected light color, the fixed alignment is used to enhance the brightness The polarized reflective reflection energy can be changed depending on the viewing angle or decorative film. EXAMPLES The circular polarizing plate will be described in detail in the following examples and comparative examples, but the scope of the present invention is not limited thereto. It should be noted that this embodiment has a retardation value of 550 nm. [Example of preparation] 50 mmol of terephthalic acid, 50 mm of 2 6-fluorene dicarbonate, 40% of diacetic hydroquinone diacetate, and 1 diacetic acid book = diphenol 60_ 〇1 and N-fluorenimidazole 60 mg under nitrogen, 27 ℃ under which the polymer should be 1 f days. Next, the obtained reaction product was dissolved with tetrachloroethane, and ethanol was reprecipitated and purified to obtain 14.6 g of a liquid crystalline polyester. The logarithmic viscosity (phenol / tetrachloroethane 2 6/4 weight ratio, mixed solvent: 30 ° C) of this polyacetic acid (polymer 1) is 0.16d 1 / g, and the liquid crystal orientation is Nematic, isotropic liquid crystal phase transition temperature is 25 (above TC, DSC) and the glass transition temperature is 112 ° c. 2-Pyridine was prepared into a solution, and the solution was applied to a polyimide film (trade name: Cap ton, manufactured by DuPont) which had been rubbed with rayon by a spin coater. After removing the solvent, the mixture was heated at 210 ° C. Process for 20 minutes to form a nematic alignment structure. After heat treatment, cool to room temperature, the nematic alignment is fixed, and a solid second is obtained on the polyurethane film.

200428039 V. Description of the invention (20) Uniformly oriented film thickness measurement with a film thickness of 1. 4 // m. Liquid daily material layer. The film thickness is based on the stylus [Example 1] The liquid crystal obtained in the preparation example is temporarily rotated, (side), and the commercially available Uv-cured adhesive layer is opposite to the thickness of the polyurethane film. J = = V — 34GG, East Asia Synthetic Coated ^ 1 (310 ^ 6 0 0mJ UV light to irradiate the adhesive agent:: _ 二 土 二 After about "adhesive agent layer" liquid crystal material layer 'peel polyurethane The amine thin film is formed on the m thin film i in the layered body of the liquid composition, and the liquid crystal layered body (A) formed by the two == layer 17 is formed by the liquid crystal substance layer 1, one of which is 4; Laminates except PET film 1 △ Both JT sells uniaxially-stretched polycarbonate film (thickness 160, n :, adhesive layer formed on a PET film previously treated with silicon = 25 degree) Next, the second plant is not bonded: the second is bonded to a heart with a thickness of 25 ㈣ / 剂, which is formed in advance (SQZ_8 62 by Sumitomo Chemical Co., Ltd.), and the polarizing plate / viscosity = W s / nuobate is obtained. Film / adhesive layer / silicon-treated laminated body (B). The PET film of this structure is not peeled off and bonded to the liquid crystal shell of the laminated body (A) to obtain By polarizer / sticky Laminated layer consisting of an adhesive layer / polycarbonate film / # adhesive layer / liquid crystal material layer / adhesive layer 丨 / MT film 丨. The group of this laminated body is peeled off, and the circle of the present invention is obtained. Polarizing plate. Page 25 7042-6079-PF (N2) .ptd 200428039 V. Description of the invention (21) The total thickness of the circularly polarizing plate is about 297 am. [Example 2] The circularly polarized light obtained in Example 1 When the plate was bonded to a commercially available transflective, TFT liquid crystal display device with an adhesive, the properties were evaluated. It was found that any circularly polarizing plate exhibited good sub-characteristics in reflection mode and transmission mode. In addition, At 500 hrs at 60 or 90% RH, or at 80 ° C, there was no peeling or cracking at all in the dryness test. [Example 3] \ 周 彳 在 LCD material layer (Polyurethane film The opposite side is strict production ^ σ 6 '\ Hardening type adhesive (UV-340 0, East Asia Synthetic), coating thin two: two, stone agent layer 1, and laminated on it with a thickness of 25 // m PET 60Π' Τ ίΛΤίν ^ cat strain type) as a re-peelable substrate, and then cured by about 1 shot / adhesive layer 1. Then, ρετ film polyimide Laminated body composed of amine thin film * coating agent W-34 0 0) is applied as a strict liquid product; on the first layer, a commercially-available custom-hardened lamination layer with a thickness of 25 is a thin tincture / agent layer 2 on top of it 6__ 光 ”接 / Λ _ is used as a re-peelable substrate, and then the product is peeled off to obtain the adhesive layer, so that J ff: the PET film 1 is laminated with the PET film 2; (日Day 2 ± Material Layer / Adhesive Layer 2 / Integral (A) ° Layer 7042-6079-PF (N2) .ptd when PET film 2 is removed at this time Page 26 200428039

The body (A) has an Aw of 14 ηη. Next, 'single-sidedly stretch a commercially available uniaxially-stretched polycarbonate film (thickness 6 ## melon, Δnd2 70nm) was laminated on a 25 // m thick adhesive layer formed on a silicon-treated pET film in one side . Next, the other side of the non-adhesive adhesive layer was laminated to a pre-formed adhesive layer having a thickness of 25 # m in advance (about 180 / zm thick, SQZ — 8 6 2 manufactured by Sumitomo Chemical) to obtain A laminated body (B) composed of a polarizing plate / adhesive layer / polycarbonate film / adhesive layer / silicon-treated PE τ film. '# Peel off the laminated PET film and attach it to the liquid crystal material layer of the laminated body (A) to obtain a polarizer / adhesive layer / polycarbonate film / adhesive layer 9 / adhesive A layered body composed of layer 1 / liquid crystal material layer / adhesive layer 2 / ρET film 2. The laminated PET film 2 was peeled off, and a circular polarizing plate of the present invention was obtained. The total thickness of the circular polarizing plate is about 300 # m. [Example 4] When the circular polarizing plate obtained in Example 3 was bonded to the upper and lower liquid crystal cells of a commercially available transflective TFT liquid crystal display device with an adhesive, the performance was evaluated, and any circular polarizing plate was reflected. Both mode and transmission mode indicate good characteristics. In addition, no abnormal appearance such as peeling or cracking occurred in the long-term performance test at 60 ° C, 90% RH for 500 hours, or 80 ° C, dry 500 hours. [Comparative Example 1] A commercially available uniaxially stretched polycarbonate film 1 (thickness 6 0 # m, Δndl35nm) and polycarbonate film 2 (thickness 60 // m, △ ndZTOnm) were taken, and the thickness 2 5 // m adhesive layers are bonded to each other to obtain a poly; 5 carbonate film

200428039 V. Description of the invention (23) 1 / Adhesive layer / Polycarbonate film 2 Laminated body. There is strictness: the two sides of the polycarbonate film in the two-layer lamination Λ are laminated on one side to form SQZ-862), and the polarized light reflection (different about 18Q, the thickness of the Sumitomo chemical preparation layer / polycarbonate is about 35). ㈣ A circular polarizing plate. The total of the circular polarizing plate [Comparative Example 2] nd275nm, JSRi) U borrowed from the reverse, the ester "special film K thickness 80 _, △ surface is bonded to a single side to form a right roof; > < Thin film separately] δ〇_ fSQZ \ / ra Adhesive layer polarizer (thickness about norbornene-based thin i) :: 卞 s obtained from polarizer / adhesive layer / body. fel / adhesive layer / Shi Xi treats the laminated layer composed of pet film

-Axial body "? Peeling PET film is peeled off and sold on the market using a sticker;)), the daily tabletene series 溥 朕 2 (thickness 80, Δη (113〇ηιη), JSR uses a thinning agent to dilute the thin film series The film W adhesive layer is 39. # m 、。 、、 ## circular polarizing plate. The total thickness of the circular polarizing plate is about [the effect of the invention] 2 Ming: two I: f manufacturing liquid crystal material without supporting substrate film The first step to achieve the layer is achieved? It is not easy to separate the multilayer polymer stretch film, and it has high performance in terms of characteristics, and it can make a significant reduction in thickness.

IS Page 28 Lu 7〇42-6079-PF (N2) .ptd 200428039 V. Description of the invention (24) Realized, the optical layered body with such characteristics has a very high industrial value. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and retouching without departing from the spirit and scope of the present invention. The scope of protection shall be determined by the scope of the attached patent application.

7042-6079-PF (N2) .ptd page 29 200428039 Simple illustration of the diagram 7042-6079-PF (N2) .ptd page 30

Claims (1)

z 6. The scope of the patent application is 1 each of the following: a method for manufacturing an optical laminate, which is characterized in that it includes at least a layer of ^ = ί ^ adhesive layer / liquid crystal material layer composition on a re-peelable substrate, and then peels the The alignment layer of the object f is transferred to the re-peelable substrate; the film is formed / accumulates the 7 adhesive layer (adhesive layer) / polymer stretch thin film :: The preparation steps of the polymer stretch film The agent f, (adhesive layer) is next to the above polarizing plate '· and the laminated body kiss-releasable substrate before or after the peeling of the gamma first, and then the following: a method for manufacturing an optical laminate, characterized in that It includes (1) a preparation step of a laminate ⑷ composed of an adhesive layer i / liquid crystal material, and the liquid crystal material layer of the nano-based material is fixed and peeled off through the adhesive layer 2 σ orientation on the soil plate After the substrate has the liquid crystal substance layer on the substrate, the liquid crystal material is then acoustically connected to the peelable substrate 1 through the adhesive layer 2 through the adhesive layer 2 and then peeled and then peeled off. ^ On the re-peelable substrate 2; moreover, it is rewritten on the re-peelable substrate 2 (2) a polarizing plate / adhesive layer (then the step of preparing a laminate (B) composed of a film, and two) toward the molecule Extend the thin adhesive layer (adhesive layer) followed by the above-mentioned polarized light 1 ^ · = Stretch film through (3) on the above-mentioned laminated body ⑴ and laminated body ⑻: Combined before or after, the 31st stomach 7042- 6079-PF (N2) .ptd 200428039 6. The third step of peeling off the releasable substrate in the laminated body (A) with the scope of patent application. 3. The method for manufacturing an optical laminated body according to item 1 or 2 of the scope of patent application, wherein the liquid crystal substance layer is a nematic formed from a liquid crystal substance having optically positive axiality in a liquid crystal state. A liquid crystal material layer formed by fixed alignment. 4. An elliptically polarizing plate, characterized in that it is formed of an optical layered body made by the manufacturing method described in item 1 or 2 of the scope of patent application. 5. A circular polarizing plate, characterized in that it is formed of an optical layered body made by the manufacturing method described in item 1 or 2 of the scope of patent application. 6. A liquid crystal display device, characterized in that it comprises at least a circularly polarizing plate or a circularly polarizing plate as described in item 4 or 5 of the scope of patent application. 7042-6079-PF (N2) .ptd Page 32 200428039 7042-6079-PF (N2) .ptd Page 4