TW200907509A - Liquid crystal panel and liquid crystal display device - Google Patents

Abstract

Provided is a liquid crystal panel which can perform a colorless neutral display in all directions and has an excellent black luminance. The liquid crystal panel includes a liquid crystal cell (13), a first polarizer (14a), a second polarizer (14b), first optical compensation layers (11a, 11b), and a second optical compensation layer (12). The panel has at least two of the first optical compensation layers . The first polarizer (14a) is arranged at one side of the liquid crystal cell (13). The first optical compensation layer (11a) is arranged between the liquid crystal cell (13) and the first polarizer (14a). The second polarizer (14b) is arranged at the other side of the liquid crystal cell (13). The first optical compensation layer (11b) and the second optical compensation layer (12) are arranged between the liquid crystal cell (13) and the second polarizer (14b).; The first optical compensation layers (11a, 11b) have an Nz coefficient and a wavelength dispersion which are smaller than those of the second optical compensation layer (12).

Description

200907509 IX. Description of the Invention: TECHNICAL FIELD The present invention relates to a liquid crystal panel and a liquid crystal display device. [Background Art] A liquid crystal display device (LCD) is a device for displaying characters and images by utilizing the photoelectric characteristics of liquid crystal molecules, and is widely used in mobile phones, notebook computers, and liquid crystal televisions. In general, a liquid crystal panel in which a polarizing plate is disposed on both sides of a liquid crystal cell is used in the LCD. For example, in a normally black system, black is displayed when no voltage is applied (for example, refer to Patent Document 1). The basic structure of the conventional liquid crystal panel is not shown in FIG. 5. In the liquid crystal panel, one side of the liquid crystal cell 13 (the upper side in the same figure) is sequentially provided with the optical compensation layer 15a and the polarizer 14a. On the other side of the liquid crystal cell 13 (the lower side of 15 in the same drawing), the optical compensation layer 15b and the polarizer 14b are sequentially disposed. The aforementioned optical compensation layer is also referred to as a retardation layer or a birefringent layer, and is used to improve viewing angle characteristics, improve color shift, and improve optical compensation of liquid crystal panels such as contrast. [Patent Document 1] Patent No. 3648240 SUMMARY OF THE INVENTION [Explanation] The problem to be solved by the invention In recent years, LCDs have been continuously developed with high definition, and their uses are also involved in many aspects. Therefore, LCDs must be improved in terms of uniformity and display quality. However, in the conventional liquid crystal display device, it is difficult to perform the neutral display in the omnidirectional display, and it is also necessary to increase the black brightness. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a liquid crystal panel and a liquid crystal display device which are capable of being displayed in an all-round colorless manner and having a good black luminance. Means for Solving the Problem 5 In order to achieve the above object, a liquid crystal panel of the present invention includes a liquid crystal panel of a liquid crystal panel, a first polarizer, a second polarizer, a first optical compensation layer, and a second optical compensation layer, and the liquid crystal panel At least two of the first optical compensation layers are disposed, and the first polarizer is disposed on one side of the liquid crystal cell, and the first optical compensation layer is disposed between the first liquid crystal cell and the first polarizer. The second polarizer is disposed on the other side of the liquid crystal cell, and the first optical compensation layer and the second optical compensation layer are disposed between the liquid crystal cell and the second polarizer, and the first optical compensation layer is disposed. And the second optical compensation layer satisfies the following formula (I) and (Π):

Nz(l)<Nz(2) (I);

Wd(l)< Wd(2) (Π), Νζ(1): Νζ coefficient of the first optical compensation layer; Νζ(2): Νζ coefficient of the second optical compensation layer; 20 Wd(l): first Wavelength dispersion of the optical compensation layer [Re(380)/Re(550)]; Wd(2): wavelength dispersion of the second optical compensation layer [Re(380)/Re(550)]; Νζ system 娄i:=( Nx-nz)/(nx-ny); nx : refractive index of the layer in which the in-plane refractive index is the largest (slow axis direction); ny: direction perpendicular to the aforementioned nx direction in the plane of the layer (fast axis direction) Refraction 200907509 rate; nz: refractive index in a layer thickness direction perpendicular to each of the aforementioned nx and the aforementioned ny;

Re(A_): the in-plane phase difference of the layer represented by the following formula (dish) at the wavelength (again);

Re=(nx-ny) · d (melon); d=layer thickness. The liquid crystal display device of the present invention has a liquid crystal display device of a liquid crystal panel which is the liquid crystal panel of the present invention. Advantageous Effects of Invention The liquid crystal panel of the present invention includes the first optical compensation layer and the second optical compensation layer having the specific relationship described above, and the first optical compensation layer is disposed on both sides of the liquid crystal cell, and the second optical compensation layer It is disposed on one side of the aforementioned liquid crystal cell. Therefore, the liquid crystal panel of the present invention can be displayed in a neutral colorless manner in all directions, and the black brightness is good. Therefore, the liquid crystal display device using the liquid crystal panel of the present invention has a good picture uniformity and a display quality of rlj quality. [Embodiment 3] BEST MODE FOR CARRYING OUT THE INVENTION In the liquid crystal panel of the present invention, the Nz coefficient of the first optical compensation layer is preferably in the range of 1 to 2.5, and more preferably in the range of 1.1 to 2.3, particularly The range of 1.1 to 2 is the best. In the liquid crystal panel of the present invention, the wavelength dispersion Wd(1) of the first optical compensation layer is preferably a flat dispersion represented by the following formula (IV) and at least one wavelength of the inverse dispersion represented by the following formula (V) 7 200907509. The dispersion, and the wavelength dispersion Wd(2) of the second optical compensation reed is preferably a positive dispersion represented by the following formula (VI).

Wd(l) : Re(380)/Re(550)=l (IV);

Wd(l) : Re(380)/Re(550)< 1 (V); 5 Wd(2) : Re(380)/Re(550)> 1 (VI) The above formula (IV)~(VI) The specific range of, for example, is as follows. In the above formula (IV), Re(380)/Re(550) is preferably in the range of 0.95 to 1.05; in the above formula (V), 'Re(380)/Re(550) is preferably less than 0.95; In the above formula (VI), 'Re(38〇)/Re(55〇) is preferably a value larger than 丨〇5. 0 In the above formula (IV), Re(380)/Re(550) is preferably in the range of 0.96 to 1.04; in the above formula (V), Re(380)/Re(550) is less than 〇_96. Preferably, in the above formula (W), Re(380)/Re(550) is preferably 0 with a value greater than 1.04. In the above formula (W), Re(380)/Re(550) is 0_97~ The range of 1 _ 〇 3 is preferably 15; in the above formula (V), Re (380) / Re (550) is preferably less than 〇.97, and in the other formula (VI), Re (380) /Re(550) is preferably a value greater than 1.03. In the liquid crystal panel of the present invention, the first optical compensation layer is preferably a positive A plate having a relationship of nX > ny = nZ, and the second optical compensation layer is preferably a negative having a relationship of 20 η χ = η Υ > η ( ( Between the liquid crystal cell and the second polarizer of the liquid crystal panel of the present & month, in particular, from the liquid crystal cell side, the second optical compensation layer and the first optical compensation layer are sequentially arranged. Preferably, the second optical compensation layer and the first optical compensation layer are disposed. The order of arrangement of the first optical compensation layer 200907509 and the second optical compensation layer is not limited, and is not limited. In the liquid crystal panel, at least two of the second optical compensation layers may be provided, and the second optical compensation layer may be disposed between the liquid crystal cell and the first polarizer. Between the liquid crystal cell of the panel 5 and the first polarizer, the second optical compensation layer and the first portion are arranged in the order of the second optical compensation layer and the first optical compensation layer from the liquid crystal cell side. 1 optical supplement The arrangement of the first optical compensation layer and the second optical compensation layer is not limited. The liquid crystal panel of the present invention is preferably provided with the first polarizer side as a visual side. Preferably, the second polarizer side is disposed on the backlight side. In the liquid crystal panel of the present invention, the liquid crystal alignment core type is preferably a vertical alignment (VA) mode. In the liquid crystal panel of the present invention, the first optical compensation layer is It is preferable to include a retardation film of at least one resin selected from the group consisting of a norbornene resin, a cellulose resin, a polyester resin, and a polyvinyl acetal resin. In the panel, the second optical compensation layer is preferably a retardation film containing a non-liquid crystalline polymer. The non-liquid crystalline polymer is selected from the group consisting of polyamine, polyimine, polyester, polyaryl ether. At least one polymer of the group consisting of a ketone, a polyether ketone, a polyamidoximine, and a polyester phthalimide is preferred. Next, a liquid crystal panel and a liquid crystal display device 200907509 of the present invention will be described in detail as described above. In the present invention The refractive index "nx" layer (including a film, a liquid crystal cell, or the like, the same applies hereinafter) has a refractive index in the direction in which the in-plane refractive index is the largest (slow axis direction). The refractive index "ny" is in the plane of the layer and the aforementioned The refractive index in the direction perpendicular to the nx direction (fast axis direction). The refractive index "nz" is a refractive index in the layer thickness direction perpendicular to the respective directions of 5 nx and ny. In the present invention, the in-plane phase The difference Re ( λ ) is, for example, a value measured at 23 ° C. The foregoing is, for example, 590 nm. In the present invention, the phase difference value Rth ( λ ) in the layer thickness direction is calculated by the following formula. In the following formula, λ is a wavelength, and d (nm) is a layer thickness. Further, a phase difference Rth (also) in the thickness direction of 10 degrees is, for example, a value measured at 23 °C. The aforementioned λ is, for example, 590 nm.

Rth(λ)=(nx-nz)xd In the present invention, the Nz coefficient can be calculated by the formula: Nz coefficient = Rth(A) / Re(;l). The foregoing is again, for example, 590 nm. In the present invention, the so-called "nx = ny" or "ny = nz" does not only end in exactly the same situation, but also contains substantially the same situation. Therefore, for example, in the case of nx=ny, the case where Re(590) is less than 10 nm is included. In the present invention, "vertical" encompasses a case of being substantially vertical, and the aforementioned substantially vertical condition means, for example, a range of 90 ° ± 2 °, and preferably 90 ° ± 1 ° 20 . Further, in the present invention, "parallel" includes a substantially parallel situation, and the aforementioned substantially parallel case means, for example, a range of 0 ° ± 2 °, and preferably a range of 0 ° ± 1 °. [A. Liquid crystal panel] An example of the structure of the liquid crystal panel of the present invention is shown in the schematic drawing of Fig. 1 200907509. In the same figure, in order to make it easy to understand, the size and proportion of each component are different from the actual ones (the same applies to the following figures). As shown in the figure, the liquid crystal panel 10 has a liquid crystal cell 13 as a main member, a first polarizing plate 14a, a second polarizing plate 14b, two first optical compensation layers 11a and 11b, and a 25th optical compensation layer 12. The first polarizing plate 14a is disposed on the visual side (display surface side, upper side in the same drawing) of the liquid crystal cell 13, and the second polarizing plate 14b is disposed on the backlight side (inner surface side of the liquid crystal cell 13, in the same figure) For the lower side). The first optical compensation layer 11a is disposed between the liquid crystal cell 13 and the first polarizing plate 14a. The second optical compensation layer 12 and the first optical compensation layer lib are sequentially disposed between the liquid crystal cell 13 and the second polarizing plate 10 14b from the liquid crystal cell 13 side. The optical characteristics of the first optical compensation layers 11a and 11b and the second optical compensation layer 12 and the relationship between the two layers are as described above, and the details will be described later. The first polarizing plate 14a and the second polarizing plate 14b include a polarizing plate and include a protective layer of any member, and the protective layer may use the first optical compensation layer or the second optical compensation layer. Any of the subsequent layers (not shown) or any optical member (which is preferably an isotropic property) may be disposed between the members (optical members) of the liquid crystal panel. The material for forming the above-mentioned adhesive layer may, for example, be a conventionally used 20-component agent, an adhesive, a bonding layer or the like. The adhesive layer may be a multilayer structure in which a bonding layer layer is formed on the surface of the substrate, and an adhesive layer is formed on the upper surface thereof, or may be a thin layer (also referred to as a hair line) that cannot be recognized by the naked eye. )). A further example of the construction of the liquid crystal panel of the present invention is shown in the schematic view of Fig. 2, 200907509. As shown in the figure, between the liquid crystal cell 13 and the first polarizing plate 14a, the second optical compensation layer 12a and the first optical compensation layer 11a are arranged in this order from the liquid crystal cell 13 side. Between the liquid crystal cell 13 and the second polarizing plate 14b, the second optical compensation layer 12b and the first optical compensation layer lib are arranged in this order from the liquid crystal cell 13 side. Other than that, it is the same as the liquid crystal panel of the above-described example. [B. Liquid crystal cell] The liquid crystal cell may be, for example, an active matrix type using a thin film transistor. Further, the liquid crystal cell may be a passive matrix type used in a super twisted nematic liquid crystal display device. The liquid crystal cell is generally constructed by sandwiching a liquid crystal layer between a pair of substrates. An example of the structure of the liquid crystal cell is shown in Fig. 3. As shown in the figure, the liquid crystal cell 13 of this example is disposed between the pair of substrates 132a and 132b via the spacers 133 to form a space, and the liquid crystal layer 131 is sandwiched in the space. Although not shown in FIG. 15, one of the pair of substrates (active matrix substrate) is provided with, for example, a switching element (for example, TFT) that controls photoelectric characteristics of the liquid crystal, and a scanning line that gives a gate signal to the switching element. And the signal line that transmits the source signal. Among the pair of substrates, the other substrate is provided with, for example, a color filter. The filter and color filter may be provided on the active matrix substrate. Alternatively, for example, when the RGB three-color light source (which may also include a light source of more colors) is used as the field sequential method, the color filter may be omitted. The interval (cell gap) of the pair of substrates described above can be controlled by, for example, a spacer. The above-described cell gap is, for example, a range of 1.0 to 7.0 " m. The side of the liquid crystal layer which is in contact with each of the substrates is provided with an alignment film made of, for example, polyimide. Or, 12 200907509 When the initial alignment of the molecules = molecules is controlled by a fringe electric field formed by, for example, a patterned transparent substrate, the front alignment film may be omitted. Just referring to the liquid 曰曰 single TL, the relationship of η, 〉 can be expressed as a relationship of refractive index. According to the classification of the liquid crystal alignment mode, the liquid crystal cell of the above-mentioned refractive index is nZ> nX=ny, for example, the γ mode (va) mode, the twisted nematic (10), and the vertical alignment cracked electronically controlled birefringence. (ecb) mode, optical compensation birefringence (OCB) mode, etc. In the present invention, the liquid crystal alignment mode of the liquid crystal cell is particularly preferably the aforementioned wedge type. It is preferable that the liquid crystal cell of the liquid crystal cell in which the electric field is not present is in the range of Η) _U 〇 n_ and is preferably in the range of _ _ _ _. The above Rth (10)) can be appropriately set by, for example, the birefringence of the liquid crystal molecules and the cell gap. In the VA mode liquid crystal cell, in the state where the electric field does not exist, the electric control birefringence effect is utilized, and the liquid crystal molecules aligned in the vertical direction are reacted with the electric field in the normal direction with respect to the 15 substrate, for example, the special opening In the normal black matrix method, in the normal black matrix method, since the liquid crystal molecules are aligned in the normal direction with respect to the substrate in the state where the electric field is not present, the upper and lower polarizing plates are vertically aligned. A black display is available. The other aspect is to reverse the absorption axis of the liquid crystal molecules with respect to the polarizing plate in the state where the electric field is present. The direction of the action, the transmittance will become larger, you can get a white display. The liquid crystal cell of the VA mode described above is also disclosed in Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. For example, the product name "AS V (Advanced Super View) mode", which is manufactured by SHARP Corporation, and the product name "CPA (Continuous Pinwheel Alignment)", manufactured by Fujitsu Co., Ltd., are available from Fujitsu Co., Ltd. Product name "MVA (Multi-domain Vertical Alignment) mode", product name "pVA (Patterned 5 Vertical Alignment) mode" by Samsung Electronics Co., Ltd., product name "EVA (Enhanced Vertical Alignment) mode", Sanyo The product name "SURVIVAL (Super Ranged Viewing Vertical Alignment) mode" manufactured by Electric Co., Ltd., etc. The liquid crystal cell may be used as it is, for example, in a commercially available liquid crystal display device. The commercially available liquid crystal display device including the liquid crystal cell of the VA mode, for example, the product name "AQUOS series" of a liquid crystal TV manufactured by SHARP Co., Ltd., and the product name r bra VIA series of a liquid crystal TV manufactured by SONY Co., Ltd.", manufactured by SAMSUNG Co., Ltd. The brand name "LN32R51B" of the 32V type wide liquid crystal TV, the "EIIS SC26XD1" of the LCD TV made by EIZ0 Co., Ltd., and the "T460HW01" of the LCD TV made by AU 15 Optronics Co., Ltd., etc. [C. First optical compensation layer] The refractive index of the first optical compensation layer is also shown to have a relationship of, for example, nx > ny g nz . That is, the first optical compensation layer exhibits a relationship of nx > ny = nz (positive uniaxiality) or a relationship of nx > ny > nz (negative biaxiality), 20 and shows nx > The relationship of ny=nz is better. As described above, the Nz coefficient of the first optical compensation layer is smaller than the Nz coefficient of the second optical compensation layer. The ideal range of the Nz coefficient of the first optical compensation layer is as described above. As described above, the wavelength dispersion of the first optical compensation layer is smaller than the wavelength dispersion Wd(2) of the second optical compensation layer. As described above, the wavelength dispersion Wd(l) of the second optical compensation layer is preferably at least one of a flat dispersion represented by the above formula (IV) and an inverse dispersion represented by the above formula (V). The first optical compensation layer may be a single layer or a laminate composed of a plurality of layers. The thickness of the first optical compensation layer is, for example, a range of 〇 5 to 2 〇〇 #m 5 . The transmittance (τ [590]) at a wavelength of 590 nm of the first optical compensation layer is preferably 90% or more. Re (590) of the first optical compensation layer is, for example, 10 nm or more, and preferably 5 to 200 nm. When the optical compensation layer exhibits a relationship of η χ > ny - nz, Re (59 Å) is, for example, in the range of 90 to 190 nm, and preferably in the range of 10 11 〇 to 17 〇 nm. The aforementioned! When the optical compensation layer exhibits a relationship of nx > ny > nz, Re (59 Å) is, for example, in the range of 70 to 170 nm, and preferably in the range of 90 to 150 nm. When the first optical compensation layer exhibits a relationship of nx > ny=nz, Re(590) and Rth(590) are substantially equal. In this case, the first optical compensation layer preferably satisfies the formula: | Rth(590) - Re(590) | < l〇nm. When the first optical compensation layer exhibits a relationship of nx > ny > nz, (Rth(590) is larger than Re(590). At this time, the difference between Rth(590) and Re(590) (Rth(590)- Re (590)) is, for example, in the range of 1 〇 to 1 〇〇 nm, and preferably in the range of 2 〇 to 8 〇 nm. 20 The first optical compensation layer may contain, for example, norbornene-based resin or fiber. A retardation film of a thermoplastic resin such as a resin, a polyester resin, or a polyvinyl acetal resin. First, a retardation film containing a norbornene-based resin will be described. The norbornene-based resin has a photoelastic coefficient. The absolute value (C [ λ ], the foregoing may be 15 200907509 is a characteristic of, for example, 590_. The absolute value (C[59〇]) of the photoelastic coefficient of the wavelength of 590 nm of the aforementioned norborne thin resin is 丨xiO-iV. The range of /wx two V/N is preferable. Further, the wavelength dispersion of the norbornene rare resin is as shown in the above formula (IV) as a flat dispersion. In the present invention, "norborning thin resin 5" means (co)polymerization of a norbornene rare monomer having a norbornene ring, in part or all of the starting material (monomer) The "(co)polymer" means a homopolymer or a copolymer (copolymer). The norbornene-based resin may be used in the form of a thin ring of norbornne (a double bond in a norbornane%). The borneol thin monomer is used as the starting material 10 ϋ. The above norbornene (tetra) lipid, in the state of (co)polymer, may have or may not have a norm burnt ring in the position: (4) polymer Ρ ' and In the structure I, there is a norbornene ring with ice (4). For example, four rings [4_4.12, 5 17,1〇01 eight 1 α ..0] six_3·ene, 8-a four ring [4A12,5,丨〇15=·稀,"Oxygen is a four-ring ring such as 2,5"7,1. cis-3·thin, etc. It is (4) and there is no nordazole in the structural unit. For example, a monomer obtained by cleavage into a monomer of a 5-shell ring, and a monomer having a 5-membered ring by cleavage as described above may be, for example, norbornene, dicyclopentadiene or 5-phenylene. The above-mentioned ice-collecting series "丨(四) ^ ^I cut bio-specialization. There is no special restriction, it can be random, and its molecular arrangement state can also be a graft copolymer. Force, or block copolymerization The opening of the substance: = fat can be - _ thin _ line addition (total) makes the norm thin body into the ring 4 is described in the open ring of norbornene monomer 16 200907509 (co) polymer hydrogen added resin a resin containing hydrogen added to one or more kinds of norbornene rare monomers and at least one of α-lean fe, cycloaliphatic and non-co-diene. The above-mentioned norbornene-based The resin in which the monomer is subjected to addition (co)polymerization includes addition-copolymerization of at least one of one or more kinds of norbornene-based monomers and at least one of α-ene 5 hydrocarbons, cycloolefins, and non-conjugated dienes. Resin. The resin in which hydrogen is added to the ring-opening (co)polymer of the norbornene-based monomer can be subjected to a displacement reaction by, for example, a norbornene-based monomer to obtain a ring-opened (co)polymer, followed by the aforementioned The ring-opened (co)polymer was added with hydrogen and 10 was obtained. Specifically, for example, the method described in paragraphs [0059] to [0060] of the Japanese Patent Publication No. Hei-hmso, and the [〇〇35]~'7 of the Japanese Patent Publication No. 2〇〇35〇〇17 ] The method of recording, etc. The resin which is subjected to the addition (co)polymerization of the monomer of the norbornene (tetra) can be obtained, for example, by the method described in the first embodiment of JP-A-611-2926. 15 The average molecular weight (Mw) of the ice-fed fat is the value measured by the gel permeation chromatography (standard polystyrene) by the tetrafuran solvent, = 2_〇~500_ It is better. The above-mentioned norbornene thin resin has a transfer temperature (Tg) of 12 〇 to 17 (the range of TC is preferred. As long as the above resin is obtained, a phase having better thermal stability and better extensibility can be obtained. The glass transition temperature (Tg) is a value calculated by, for example, a method of 81^7121. C, a phase difference thin mold containing the above-mentioned norbornene thin resin, for example, a borrowing/treasure agent is washed. Casting method, j: Rongrong extrusion method to make the above-mentioned norbornene tethered tree shape into a polymer film, by longitudinal uniaxial stretching method, horizontal single-car extension 17 200907509 stretching method, vertical and horizontal simultaneous double The axial stretching method or the vertical and horizontal sequential biaxial stretching method is extended. From the viewpoint of manufacturing efficiency, the stretching method is preferably a horizontal uniaxial stretching method. The temperature of the polymer film is extended (the stretching temperature is 120 〜 20 (the range of TC is preferably. The magnification of the polymer film (elongation 5 stretch ratio) is preferably 1 time or more and 4 times or less. The extension method may be a fixed end extension method or a free end extension method. Fixed end extension method, can produce display nx > ny > n A retardation film having a relationship of z. For the retardation film containing the norbornene-based resin, for example, a commercially available film may be used as it is, or at least one of stretching and shrinking treatment may be applied to the commercially available film. For the second-order processor, such as the processing, the commercially available phase-difference film containing the norbornene-based resin, for example, the product name "ARTON series (ARTON FX, ARTON D), manufactured by JRS Corporation) The product name is "ZEONOR series (ZEONOR ZF14, ZEONOR ZF15, ZEONORZF16)", etc. 15 Next, a retardation film containing a cellulose resin is described. The cellulose resin is preferably substituted with an ethyl fluorenyl group and a propyl group. The degree of substitution of the cellulose resin "DSac (acetamethylene substitution degree) + DSpr (degree of substitution of propylene)" (the three hydroxyl groups present in the repeating unit of cellulose are replaced by an ethyl or propyl group on average. The lower limit of the number is preferably 2 or more, and preferably 2.3 is preferable to ' and 2.6 or more. The upper limit of "DSac+DSpr" is preferably 3 or less and preferably 2.9 or less. More preferably 2.8 or less. By making fibers The substitution degree of the plain resin is in the above range, and a retardation film having a refractive index distribution as desired as described above can be obtained. The lower limit of DSpr (degree of substitution of propylene) is preferably 1 or more, and 2 is 18 on 200907509. Preferably, it is more preferably 2.5 or more. The upper limit of DSpr is preferably 3 or less and preferably 2.9 or less, and more preferably 2.8 or less. By setting DSpr to the above range, the cellulose system can be improved. The solubility of the resin solvent makes it easy to control the thickness of the obtained first optical compensation layer. Further, by setting 5 "DSac + DSpr" to the above range and setting DSpr to the above range, a retardation film having the aforementioned optical characteristics and having wavelength dependence of reverse dispersion can be obtained. The Dsac (degree of substitution) and DSpr (degree of substitution) can be determined by the method described in JP-A-2003-315538 [〇〇16] to [〇〇19]. The cellulose resin may have other substituents other than an ethyl fluorenyl group and a propyl fluorenyl group. Examples of the other substituent include an ester group such as butyrate; an ether group such as an alkyl ether group or an aromatic ether group; and the like. The cellulose-based resin preferably has a number average molecular weight of from 5,000 to 100,000. By setting the above-mentioned number average molecular weight to the above range, the production is excellent and the mechanical strength is improved. The number average molecular weight is preferably in the range of 10,000 to 70,000. For the substitution method of the acetic acid group and the (tetra) group, any suitable method can be used. After the cellulose is treated with a strong caustic soda solution, it is brewed by a mixture of acetic acid and propionate needles in the pre-tank. The degree of substitution "Dsac+DSpr" was adjusted by partially hydrolyzing the 20 fluorene group. The phase difference film containing a cellulose resin can be prepared by, for example, dissolving a solution of a cellulose resin in a solvent, applying the solution onto a substrate to form a coating film, and drying the coating film to obtain a film. The way to manufacture. Although the film can be used as it is, in order to exhibit the phase difference of the above-mentioned 200907509, it is preferable to carry out the stretching process. The above stretching treatment is the same as the stretching treatment of the retardation film containing the norbornene-based resin. Further, a commercially available product can also be used as the retardation film containing the cellulose resin. Next, a retardation film containing a polyester resin will be described. The polyester 5-based resin is not particularly limited, and any suitable polyester-based resin may be used. However, a non-aromatic compound obtained by polymerizing a dicarboxylic acid component having a non-aromatic cyclic structure and a diol component may be used. A polyester resin having a cyclic structure and an ester group is preferred. The dicarboxylic acid component may, for example, be 1,4-cyclohexanedicarboxylic acid or the like. The above-mentioned dicarboxylic acid component may be used alone or in combination of two or more. The diol component of the first tenth embodiment may, for example, be 9,9-bis[4-(2-hydroxyethoxy)benzene]fluorene or 1,4-cyclohexanedhenol. The diol component may be used singly or in combination of two or more. The intrinsic viscosity of the polyester resin is preferably in the range of 0.2 to 0.6 dL/g. The glass transition temperature (Tg) of the polyester resin is preferably in the range of 110 to 150 °C. As long as it is the above-mentioned resin, a retardation film which has better thermal stability and is more excellent in elongation can be obtained. The intrinsic viscosity can be measured by, for example, the method described in the examples below. The glass transition temperature (Tg) is a value calculated by, for example, the DSC method of JIS K 7192. The retardation film containing the polyester resin is, for example, a polymer film obtained by molding the above-mentioned 20 polyester resin into a sheet shape, and appropriately extending the stretching conditions (for example, elongation temperature, stretching ratio, and stretching direction) Etc., extension method, etc. are produced by extension. Next, a retardation film containing a polyvinyl acetal resin will be described. The polyethylene acetal-based resin is not particularly limited, and a resin containing a polymer represented by the following formula (1) described in [0026] of JP-A No. 20 200907509 3984277 can be used. The polymer has a naphthyl group in its molecular structure and is excellent in transparency, heat resistance, processability and the like. [chemical 1] c

The polymer can be obtained, for example, by subjecting at least one of at least two kinds of aldehyde compounds and ketone compounds to a condensation reaction with a polyvinyl alcohol-based resin. In the polymer represented by the above formula (1), the order of the columns of the basic units of m and η is not particularly limited, and may be any of alternating, random or block. The polymer contains a polymer having a basic unit m and a total degree of polymerization of 20 or more and a weight average molecular weight (so-called high polymer), and also includes a total degree of polymerization of basic units m and η. It is a low polymer (so-called oligomeric 20) having a weight average molecular weight of about 2 or more and 20 or less. In the above formula (1), R1 and R3 each independently represent a hydrogen atom, a halogen atom, a linear or branched alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted phenyl group, and the above R1 and R3 may be the same or different. In the above formula (1), R 2 , Α and Β are each a hydrogen atom, a halogen atom, a carbon 21 200907509, a linear or branched alkyl group having 1 to 4 atomic number, and a linear chain having a carbon number of 丨 4 . a linear or branched chain i-alkyl group, a linear or branched alkoxy group having a carbon number of 4, an alkoxycarbonyl group, a decyloxy group, an azide group, a nitro group, a cyano group or Hydroxyoxy group, and the above R2, A and B may be the same or different. However, 5 of the above R2 is not a hydrogen atom. In the above formula (1), R4 is a hydrogen atom, a linear or branched alkyl group having 1 to 4 carbon atoms, a substituted or unsubstituted cycloalkyl group having 5 to 10 carbon atoms, a substitution or no Substituted phenyl, substituted or unsubstituted naphthyl, or substituted or unsubstituted heterocyclic. In the above formula (1), R is a hydrogen atom, a linear or succinated alkyl group having a carbon number of 1 to 4, a benzyl group, a fluorenyl group, a phosphoric acid group, a fluorenyl group or a benzamidine group. Or continue to brew. The retardation film containing the polyvinyl acetal resin is, for example, a compression molding method, a transfer molding method, an injection molding method, an extrusion molding method, a 15 air blowing molding method, a powder molding method, an FRP molding method, and a solvent casting method. A polymer film obtained by molding the above-mentioned polyethylene-shrinkable resin into a sheet shape by a method such as extending the stretching conditions (for example, elongation temperature, stretching ratio, extending direction, etc.), stretching method, or the like . The retardation film used as the first optical compensation layer may further contain 20 optional additives. The aforementioned additives may, for example, be a plasticizer, a heat stabilizer, a light stabilizer, a lubricant, an antioxidant, a UV absorber, a flame retardant, a colorant, an antistatic agent, a phase solvent, a crosslinking agent, a thickener or the like. The content of the above additive is preferably in the range of 〇 or more and 10 parts by weight or less based on 100 parts by weight of the resin of the main component. 22 200907509 [D. Second optical compensation layer] As described above, the second optical compensation layer has a relationship of refractive index of, for example, nx = ny > nz (negative uniaxiality). Further, as described above, the wavelength dispersion of the second optical compensation layer shows, for example, the positive dispersion represented by the above formula (IV). 5 The second optical compensation layer may be a single layer or a laminate composed of a plurality of layers. The thickness of the second optical compensation layer is preferably in the range of 0.5 to 200 / / m. The transmittance (T[590]) at a wavelength of 590 nm of the second optical compensation layer is preferably 90% or more. Re (590) of the second optical compensation layer is, for example, 10 nm or less, more preferably 10 5 nm or less, and still more preferably 3 nm or less. The Rth (590) of the second optical compensation layer can be appropriately set, for example, by a phase difference value in the thickness direction of the liquid crystal cell. The above Rth (590) is, for example, in the range of 100 to 400 nm, preferably in the range of 120 to 350 nm, and more preferably in the range of 150 to 300 nm. For the second optical compensation layer, for example, a retardation film containing a non-liquid crystalline polymer can be used. From the viewpoints of excellent heat resistance, chemical resistance, transparency, and the like, and having rigidity, the aforementioned non-liquid crystalline polymer is, for example, polyamine, polyimine, polyester, polyaryletherketone, poly Polymers such as ether ketone, polyamidoximine, and poly 20 oxime imine are preferred. These polymers may be used singly or in combination of, for example, two or more kinds of dissimilar functional groups such as a mixture of polyaryl ether ketone and polydecylamine. From the viewpoint of high transparency, high alignment, and high elongation, among such polymers, polyylimylene is particularly preferred. 23 200907509 The molecular weight of the above polymer is not particularly limited. For example, the weight average molecular weight (Mw) is preferably in the range of moo~1〇〇〇 且 and more preferably in the range of 2,000 to 500,000. (1) The retardation film used as the second optical compensation layer may further contain any appropriate additives. The aforementioned additives may, for example, be plasticizers, heat stabilizers, light stabilizers, lubricants, antioxidants, ultraviolet absorbers, ', flame retardants, colorants, antistatic agents, phase solvents, crosslinking agents, hydrazines. Agents, etc. The content of the above additive is preferably in the range of 〇 or more and 10 parts by weight or less based on 100 parts by weight of the resin of the main component. [E. Polarizing Plate] In the liquid crystal panel of the present invention, the first polarizing plate and the second polarizing plate are preferably arranged such that the absorption axes are perpendicular to each other. As described above, the needle, the +, and the second polarizing plate and the second polarizing plate contain the polarizing plate, and the protective layer is an optional member. An example of the configuration of the polarizing plate is shown in the schematic drawing of Fig. 5. The polarizing plate 14 shown in Fig. 15(A) is a structure in which the pad 142 is laminated on both sides of the polarizer 141. The polarizing plate 14 shown in Fig. 5(B) has a structure in which a protective layer 142 is laminated on one side of the polarizing plate 141. The polarizing plate shown in Fig. 5(C) has only the structure of the polarizing plate 141. In the case of the fifth (B) and fifth (C) drawings, the other optical members such as the i-th optical compensation layer and the second optical compensation layer have a protective layer of 20. The thickness of the first polarizing plate and the second polarizing plate is, for example, in the range of 20 to 300 μm. The transmittance of the first polarizing plate and the second polarizing plate is, for example, in the range of 30 to 50%, and preferably in the range of 35 to 45%, and is 38 to 44. The range of /0 is better. The first polarizing plate and the second polarizing plate have a degree of polarization of 24 200907509, for example, 99% or more, and preferably 99.5% or more, and more preferably 99.8% or more. The above-mentioned degree of polarization can be measured, for example, by using a spectrophotometer (trade name "DOT-3", manufactured by Murakami Color Research Laboratory Co., Ltd.). The specific measurement method of the degree of polarization is obtained by measuring the parallel transmittance (Ho) and the vertical transmittance (l·^) of the first polarizing plate and the second polarizing plate by the formula: degree of polarization (%) )={(Η〇-Η9())/(Η()+Η9())}ι/2χ100 to find. The parallel transmittance (H〇) is a value obtained by superimposing two identical polarizing plates on the transmittance of a parallel-type laminated polarizing plate in which the absorption axes of the two are parallel. The above-mentioned vertical transmittance (h9〇) is a value obtained by superimposing two identical polarizing plates on the transmittance of a vertical laminated polarizing plate in which the absorption axes of the two are perpendicular to each other and 10 is formed. Further, these transmittances are Y values after luminosity correction by a 2 degree field of view (C light source) of JIS Z 8701 (1982 edition). [E-1. Polarizer] The first polarizer and the second polarizer can be obtained, for example, by stretching a polymer film containing 15 polyvinyl alcohol-containing resin containing iodine. The iodine content of the first polarizer and the second polarizer is, for example, a range of j 8 to 5 wt% and a range of 2. G to 4. G wt%. The aforementioned third polarizer and the former

The polarizer is more preferably boron. Before ... 乂王至/. Tr.j is a good fit for Ma Jia and better. The first polarizer and the second. The content of the boron is preferably in the range of, for example, 5 to 3 wt% of ruthenium. The range of the amount %, and the range of !·〇~2·8 wt% is preferable, and is 5~. The polyvinyl alcohol-based resin can be obtained, for example, by deuterating the ethylene-based polymer obtained by polymerizing the vinyl vinegar monomer 25 200907509. The degree of the polyethylene glycol resin is preferably in the range of 95.0 to 99.9 mol%. By using the compound ===W' resin, the average degree of polymerization of the more excellent allyl alcohol-based resin can be selected depending on the purpose. The above average degree of polymerization is preferably in the range of 1200 to 3 mm. Pre-homogeneity: Degree: Calculated according to, for example, JIS K 6726 (1994 edition). The polymer film containing the above-mentioned polyvinyl alcohol-based resin can be obtained by any appropriate molding process. The method of the molding process can be exemplified by the method described in the Japanese Patent Publication No. 2000-315144. The polymer film of the polyvinyl alcohol-based resin preferably contains at least one of a plastic polymer and a surfactant. The aforementioned plasticizer may, for example, be a polyterpene alcohol such as ethylene alcohol or propylene glycol. The surfactant may, for example, be a nonionic surfactant or the like. The content of the plasticizer and the commercial surfactant in the range of i to j 〇 by weight is preferably 15 in terms of the Q parts by weight of the polyethylene glycol (4). The above plasticizer and the aforementioned surfactant can further improve, for example, the coloring property and the elongation of the polarizer. The polymer film containing the polyvinyl alcohol-based resin may be used as it is, for example, a commercially available film. The commercially available polymer film containing a polyvinyl alcohol resin is, for example, a product name "Kuraray Vinyl〇n 20 Film" manufactured by KURARAY Co., Ltd., and a trade name "T〇hceU〇Vinyl" manufactured by T〇HCELLO Co., Ltd. 〇n

The product name "Nikko vinyl 〇n Film" manufactured by Nippon Synthetic Chemical Industry Co., Ltd., etc. [E-2. Protective layer] The aforementioned protective layer is transparent and is preferably colorless. The in-plane retardation value Re(55〇) of the protective layer 26 200907509 is, for example, a range of 〇1 to 1 〇 nm, and U of 〇 〜 is k ′ and a range of 〇 3 3 nm is more preferable. The phase difference value Rth (550) in the thickness direction of the protective layer is, for example, in the range of 0 to 20 nm, and is preferably in the range of 〇1 〇 nm and preferably in the range of 0 to 6 nm, and 〇 〜 3 nm 5 The range is better. The thickness of the protective film is, for example, in the range of 20 to 200 //m, and preferably in the range of 3 〇 100 / zm, and more preferably in the range of 35 to 95 Å. The foregoing protective layer may use, for example, cellulose. In general, when the cellulose-based film used as the protective ruthenium film is, for example, a triacetyl cellulose (TAC) film 10, the thickness direction retardation (Rth) is about 40 ηηι in thickness 40 #m, which is very For the cellulose-based film having a large retardation phase difference (Rth), a suitable treatment for reducing the thickness direction retardation (Rth) should be applied. The foregoing treatment for reducing the thickness direction retardation (Rth) Any appropriate treatment method may be employed, and for example, a substrate coated with polyethylene terephthalate (PET) coated with a solvent such as cyclopentanone or methyl 15 ethyl group, polypropylene, or stainless steel may be bonded. A method of peeling a base film after drying and drying (for example, about 8 to 10 minutes at about 8 to 150 ° C) in a general cellulose-based film; a solvent such as cyclopentanone or methyl ethyl ketone; A solution in which a norbornene-based resin, a propylene-based resin, or the like is dissolved is applied to The cellulose-based film is heated by a heat of 20 (for example, 'about 3 to 10 minutes at about 80 to 150 ° C), and the film is peeled off. The material constituting the cellulose film is preferably diethyl hydrazine. A cellulose-based polymer such as cellulose or triacetyl cellulose (TAC) is substituted for the cellulose-based polymer. Generally, in the TAC used, the degree of substitution of acetic acid is about 2.8, but it is preferable to control the degree of substitution of acetic acid 27 200907509 to h8~2·7. And it is more preferable to control the degree of substitution of propionic acid to 0_1 to 1, whereby the thickness direction retardation value (Rth) can be reduced and controlled by using dibutyl phthalate, p-toluenesulfonyl aniline, A plasticizer such as diethyl ruthenate or a plasticizer added to the above-mentioned fatty acid-substituted cellulose-based polymer 5 can reduce and control the thickness direction retardation value (Rth), which is 10 parts by weight relative to the fatty acid-substituted cellulose-based polymer. The amount of the plasticizer to be added is preferably 4 parts by weight or less, more preferably 1 to 20 parts by weight, and more preferably 15 parts by weight. The following is for reducing and controlling the thickness direction retardation. Value (Rth) technology can be used in conjunction with 10 Other preferable examples of the optical characteristics (in-plane phase difference value φ (550), thickness direction directional difference value Rth (550)) may be satisfied, and an acrylic resin film may be used. The acrylic resin film is preferably opened. An acrylic resin film containing an acrylic resin 15 (A) having a glutaric anhydride unit represented by the following structural formula (2) as a main component, as described in JP-A-2005-314534, contains the following structural formula (2) In the following structural formula (2), R1 and R2 represent the same or different hydrogen atoms or an alkyl group having 1 to 5 carbon atoms, and are represented by a hydrogen atom or a methyl group. It is better, and the methyl group is better. [Chemical 2] 20

28 200907509 The content of the anhydride unit is preferably in the range of 20 to 40% by weight, and more preferably in the range of ~^ weight °/Q. In addition to the glutaric anhydride unit represented by the above structural formula (2), the acrylic resin (A) may contain any one or two or more kinds of appropriate monomeric monomers 5f. The monomer unit should be given a unit of ethylene. The content of the 'vinyl carboxylic acid alkyl ester unit in the acridine tree sap (A) is preferably in the range of 6 Å to 8 Å by weight, and more preferably in the range of 65 to 75 parts by weight. The above-mentioned ethylene carboxylic acid alkyl ester unit may, for example, be an early position represented by the following general formula (3). In the following general formula (3), 'R3' represents a hydrogen atom or a carbon atom number 5 of a lipid (7) aliphatic or alicyclic hydrogen perhydrogen compound, and r4 represents an aliphatic hydrocarbon having 5 carbon atoms. [化3]

15 R3

H2 I c —C-

COOR4

The weight average molecular weight of the above-mentioned propylene glycol resin (A) is preferably in the range of 20,800 to 150,000. The content ratio of the aforementioned acrylic resin (A) in the propylene-St resin film is preferably in the range of 60 to 90% by weight. In addition to the acrylic resin (4), one or two or more optional components may be used in the film of the acrylic resin. Such a component is in the range of 29 200907509 which does not impair the object of the present invention. The composition may be as described above. Pre-absorbent, antioxidant, lubricant, =m (resin other than A, ultraviolet flame retardant' crystal nucleating agent, antistatic agent, ° plasticizer, release agent, anti-coloring agent, pigment, colorant, etc.). The protective layer may also be appropriately treated with a surface surface defect 6 on the side opposite to the front side of the surface treatment visible side. The surface treatment layer may be, for example, a hard coating treatment or an antistatic treatment. Anti-reflection treatment (also known as anti-reflection treatment), treatment layer such as » a, & (also known as anti-glare treatment). These surface treatments are protected against + + 10 闵Dirty or damaged, or prevent the use of internal fluorescent lamps or sunlight to illuminate the surface of the screen. In general, ^ ± Do not use the surface treatment layer for the substrate The surface of the film is adhered to form a treatment agent for the front layer of the t-treated layer. The substrate film may also have the above-mentioned protective reed. u B Further, the surface treatment layer may be, for example, an anti-static treatment layer. The S-layer has a hard coating layer The protective layer may be a commercially available polymer film to which a surface treatment is applied, for example, or a surface treatment may be applied to the commercially available polymer film of the former block. The commercially available film of the above-mentioned anti-reflection treatment (anti-reflection treatment) is exemplified by the trade name "AG15〇, AGS1, 20 AGS2" manufactured by Nippon Denshi Co., Ltd. For example, the product name "ARS, ARC" manufactured by Nitto Denko Co., Ltd., and the like. The commercially available film which is subjected to the hard coating treatment and the antistatic treatment may be, for example, 'KONICA MINOLTA OPTO Co., Ltd. For example, the product name "Re〇L〇〇]^^, column, etc., manufactured by Sakamoto Oil & Fats Co., Ltd., etc., can be used as a commercially available film to which the above-mentioned anti-reflection treatment is applied. For example, the other optical members such as the first optical compensation layer and the second optical compensation layer may be used as a protective layer. [F. Layering of optical members] 5 First polarizing plate, first optical compensation layer, etc. The layering of the optical member is, for example, followed by Further, it is preferable that the bonding surface of the optical member of the month is preferably subjected to an easy-to-treat treatment. The above-described easy-to-treat treatment is preferably a treatment for coating a resin material, for example, a lanthanum resin or an amino phthalic acid. An ethylenic resin or an acrylic resin is preferred. 10 An easy-adhesion layer can be formed on the adhesive surface by the above-described easy-to-treat treatment. The thickness of the easy-adhesion layer is preferably in the range of 5 to 100 nm, and is 10 to 80 nm. The adhesive layer may be provided on both sides of the optical member that is adjacent to each other, or may be provided on one side. 15 When the adhesive layer is an adhesive layer formed of an adhesive, the adhesive may be any suitable adhesive. Agent. Specifically, the above-mentioned adhesive can be exemplified by a solvent-based adhesive, a non-aqueous emulsion-type adhesive, a water-based adhesive, a hot-melt adhesive, and the like. Among them, a solvent-based adhesive using an acrylic polymer as a base polymer is preferably used. The thickness of the adhesive layer is, for example, in the range of 20 1 to 100 / im, and preferably in the range of 3 to 50 / / m, and more preferably in the range of 5 to 30 # m, particularly 1 to 25 The range of //m is the best. The above-mentioned adhesive layer may be, for example, an adhesive layer formed by applying a coating liquid containing a predetermined ratio of an adhesive to a surface of an optical member and then drying it. For the coating liquid, for example, a commercially available solution or dispersion may be used, or 31 200907509 may be used after the solvent is added to a commercially available solution or dispersion, and the solid component may be dissolved or dispersed in various working conditions. The above-mentioned adhesive agent may, for example, be a water-soluble adhesive, a milk-based adhesive, a milk-adhesive, a rubber adhesive, a pressure-sensitive adhesive, a paste-like adhesive agent, a foaming type adhesive, and a loaded film joint = a thermoplastic moldable type. Receptive agent, hot refining type adhesive, heat curing adhesive, agent: thermal active adhesive, heat sealing adhesive, thermosetting adhesive, contact adhesive, pressure sensitive adhesive, polymeric adhesive Solvent activity followed by μ workability, product quality, and transparency, adhesion, and 10 15 20 are preferred. The water-soluble adhesive agent which is excellent in the application of the above-mentioned adhesive agent is, for example, spin coating* by any appropriate method. The above method, dip coating method, bar coating method, barrel coating method, flow coating, for example, 0.01 to 0.15 (4), the thickness of the above-mentioned adhesive layer is 〇. 3~. The range of _09 is: °: 02~〇·12 (four) is preferable. [G_Liquid Crystal Display Device] The liquid crystal display of the present invention is a liquid crystal panel. The present invention is characterized in that, in addition to the above-described crystal panel of the present invention, the liquid crystal display device of the liquid crystal display device of the present invention may be a transmissive type of the inner surface of the panel, or may be First, when you see the reflection type of the screen, you can also see the semi-transmissive type of the light that is illuminated by the display side of the panel. 4 Simultaneously having a transmissive type of projection The liquid crystal display of the present invention is used, for example, for personal electric contact 0 for any suitable use. Office curtains, notebook computers, photocopiers, etc. Office 32 200907509 equipment; mobile phones, clocks, digital cameras, personal digital assistants (pDA), portable game consoles, etc.; portable video recorders, television sets , electric appliances such as microwave ovens; reversing monitors, car navigation system monitors, car audio and other in-vehicle devices; display devices such as store information monitors; surveillance equipment such as surveillance monitors; surveillance monitors, medical monitors Equipment and other care - medical equipment. An ideal use of the liquid crystal display device of the present invention is a television set. The size of the face of the television is preferably 17 (373 mm x 224 mm) or more, and is preferably 23 (499 mm x 300 mm) or more, and more preferably 32 (688 mm x 10 412 mm) or more. [Embodiment] Next, an embodiment of the present invention will be described together with a comparative example. Further, the present invention is not limited or limited by the following examples and comparative examples. Further, the measurement and evaluation of various characteristics and physical properties of the respective examples and comparative examples were carried out by the following methods. (1) In-plane phase difference value Re (590) at a wavelength of 590 nm and thickness direction phase

Rth (590) The in-plane phase difference value Re (590) at a wavelength of 590 nm and the thickness direction phase difference value Rth (590) were measured using a σ 〇Cr name 20 "KOBRA21ADH" manufactured by Oji Scientific Instruments Co., Ltd. (2) Measurement of color shift Using a product name "EZ Contrastl 60D" manufactured by ELDIM Co., Ltd., the azimuth angle was changed from 0 to 360 °, and the polar angle was measured to be 60. The liquid crystal in the direction shows the hue of the image and is drawn on the xy chromaticity diagram. In addition, the azimuth and polar angle are shown in Figure 6 33 200907509. In the measurement of the aforementioned color shift, when the azimuth angle is changed, no color change occurs, and the values of X and y do not change. That is, the chart will be flat. Even if it is not a flat curve, it is relative to 45, 135, 225°, 315. The angle of 5 degrees is changed to the axial direction of the polarizing plate (45° - 0° and 45. - 90 °, 135 ° - 90, and 135 ° - 180 °, 225 - 180 ° and 225 - 270 °, When the color change is the same in the case of 315°—270° and 315°—0° (that is, the graph of x and y is symmetrical about 45°), the color shift will be generated only for the color in a certain direction. (Even if there is a color shift, it only ends with a color of 10 colors). Although the graph is ideal for a flat curve, even if there is a color shift, if there is only one color, there is no practical problem with the use of the LCD. In contrast, it is relative to 45. , 135. 225. 315. The angle of view changes to the direction of the axis of the polarizing plate (45. - 0. and 45. -> 90., 135. - 90. and 135. - 180., 225. - 180. and 225. -> 270 , 15 315 ° ~ " 270 ° and 315 ° - 〇.) in the case of color change in the same time (that is, 'X, y chart is asymmetry in the center of 45." Change to produce color cast for various colors. Such a color change causes a decrease in viewing angle in the LCD, which becomes the most undesirable color change. The magnitude of the amplitude is the degree of color shift. The more the X and y values deviate from the color of the axis of the polarizing plate (0, 90, 180, 2〇27〇0, and the target ϊJ, the color shift will be larger. (3) The average black luminance is measured by using ELDIM Corporation, trade name rEzc〇ntrastl60D", and the polar angle is 6 〇. 1. Azimuth angle 45°, polar angle 60. Azimuth angle 135., polar angle 60° azimuth 34 200907509 angle 225°, polar angle 60° azimuth angle 315. The average black brightness. In addition, the azimuth and polar angle are as shown in Fig. 6. The above average black brightness is low. If the black color is more condensed, it is judged to be good. (4) Intrinsic viscosity 5 The intrinsic viscosity of the polyester resin is calculated by the following method. [1] The polyester resin 〇.25g is dissolved in a mixed solvent to make a solution. Concentration (〇 becomes about 1.00 § / (1 [. In the above mixed solvent, phenol: 1,1,2,2-tetrachloroethane = 1 : 1 (weight ratio). [2] The solution was cooled to 3 After that, the number of seconds of the solution (1) and the number of seconds of the solution were measured using a fully automatic solution viscometer 10 (manufactured by SENTEC Corporation, trade name "2CH type DJ504"). The number of seconds of the drop (t〇) of the agent. [3] The intrinsic viscosity is calculated by the following formula (fox). The following κΗ is the Huggins constant, and 0.33 is used. Intrinsic viscosity (dL/g)={(l +4KH; / sp)05-l}/(2KHC) (VH) 15 η sp=t/t〇-lt〇: number of seconds of the drop of the solvent t: number of seconds of falling of the solution KH: Huggins constant C: solution Concentration (g/dL) 2 〇 [Optical Compensation Layer] [Reference Example 1] A norbornene-based film (manufactured by Sakamoto Co., Ltd., trade name "ZEONOR", thickness: 1 〇〇#) at 150 °C m) The optical compensation layer (A1) is formed by extending to the X-axis direction by the free end extension method, and the in-plane retardation Re of the optical compensation layer (A1) 35 200907509 is 85 nm, and the thickness direction phase difference is The value Rth is 90 nm. The birefringence wavelength dispersion N of the optical compensation layer (A1) is shown in Fig. 7. As shown, the optical compensation layer (A1) exhibits flat dispersion. The norbornene-based film described below The resulting retardation film also showed a flat color dispersion. [Reference Example 2] 2,2'-bis(3,4-dicarboxyphenyl)hexafluoropropane and 2,2'-bis(trifluoroanthracene) Synthesis of 4,4'-diamine diphenyl The quinone imine (polyimine represented by the following formula (4)) is dissolved in cyclohexanone to obtain 15% by weight of a polyimine solution. The polyimine solution is 20/m. The thickness was applied to a PET film (thickness: 50 / / m), and then dried at 100 ° C for 10 minutes to obtain an optical compensation layer (A2) having a thickness of about 3 # m. The obtained optical compensation layer (A2) was transferred to a glass plate via an acrylic adhesive. The in-plane phase difference Re of the optical compensation layer (A2) was 0.5 nm, and the thickness direction phase difference Rth was 15 121 nm. The birefringence wavelength dispersion PI of the optical compensation layer (A2) is shown in Fig. 7. As shown, the optical compensation layer (A2) exhibits positive dispersion. Further, the retardation film obtained from the following polyimine-based resin also showed positive dispersion. [化4] 20

Cf3 36 _ (4) 200907509 [Reference Example 3] Ethyl acetate propionate (EASTMAN) with a degree of substitution of alkyl group of 0.1 and a degree of substitution of propylene with a propylene group of 2.6 and a number average molecular weight of 7,500. Manufactured under the trade name "CAP482-20" by the company, the solid content of the solid body component was 15%, and then it was washed and cast onto a base material (PET) so that the thickness after drying was 80 #m, that is, a film was obtained. After the substrate was peeled off, the film was stretched by a free end extension method by a stretching machine at 14 Torr for 1 to 6 times to prepare an optical compensation layer (A3). The in-plane phase difference value of the optical compensation layer (A3) was 88 nm, and the thickness direction phase difference Rth was 95 nm. The birefringence wavelength dispersion C of the optical compensation layer 仏3) 10 is shown in Fig. 7. As shown, the optical compensation layer (A3) exhibits an inverse dispersion. Further, the phase difference film of the cellulose-based film described below also showed no reverse dispersion. [Reference Example 4] An optical compensation layer (A4) was produced in the same manner as in Reference Example 1 except that the norbornene-based film was stretched three times in the X-axis direction by the fixed end 15 extension method. The in-plane retardation rule 6 of the optical compensation layer (A4) was 79 nm' and the thickness direction phase difference Rth was l〇3 nm. [Reference Example 5] An optical compensation layer (4) having a thickness of about 26 μm was obtained in the same manner as in Reference Example 2 except that the polyimide reaction solution was applied at a thickness of 18 # m. The optical compensation layer (A5) which was taken up was transferred to the glass plate via an acrylic adhesive. The in-plane phase difference value R_〇_4· of the far optical compensation layer (Eight 5) is, and the thickness direction phase difference value Rth is l〇5 nm. [Reference Example 6] 37 200907509 An optical compensation layer was produced in the same manner as in Reference Example 1 except that the norbornene-based film was stretched to 丨·5 times in the z-axis direction at 146 ° C in the same manner as in Reference Example 1. (A6). The in-plane retardation value 5^ of the optical compensation layer (A6) was 69 nm' and the thickness direction retardation value Rth was 118 nm. 5 [Reference Example 7] An optical compensation layer (A?) was produced in the same manner as in Reference Example 3 except that the film was extended to 1.45 times by the free end extension method at 150 C. The in-plane phase difference Re of the optical compensation layer (Α7) is 70 nm, and the thickness direction phase difference Rth is l〇6 nm. [Reference Example 8] An optical compensation layer (A8) having a thickness of about 14 / / 〇 1 was obtained in the same manner as in Reference Example 2 except that the polyimine solution was applied at a thickness of 10. The obtained optical compensation layer (A8) was transferred to a glass plate via an acrylic adhesive. The in-plane retardation value Reg 〇 5 nm of the optical compensation layer (A8) and the phase difference Rth of the thickness 15 direction were 60 nm. [Reference Example 9] An optical compensation layer was produced in the same manner as the reference example except that the norbornene-based film was stretched 1.3 times in the z-axis direction and 丨 was multiplied in the γ-axis direction at 1451. (A9). The optical compensation layer (A9) has a phase difference ruler 6 of 5,211,111 and a thickness direction phase difference Rth of 160 nm. [Reference Example 10] An optical compensation layer (A10) was produced in the same manner as in Reference Example except that the norbornene-based film was stretched three times in the X-axis direction by the fixed end extension method at 13 8 c. The in-plane retardation value of the optical compensation layer (A1〇) is llOnm and the thickness direction phase difference Rth is 145 nm. [Reference Example 11] An optical compensation layer (All) was produced by stretching a polycarbonate film (thickness: 50 / / m) at a temperature of 160 ° C by a free end extension method to 丨.06 times. The in-plane retardation value R_u 〇 nm of the optical compensation layer (All) and the thickness direction phase difference Rth are 145 nm. [Reference Example 12] A TAC film manufactured by Fuji FILM Co., Ltd. was prepared. This film was used as an optical compensation layer (A12). The in-plane phase difference rule 6 of the optical compensation layer (A12) is 1 „111, and the thickness direction phase difference 1^]1 is 6〇11111. The birefringence wavelength dispersion TAC display of the optical compensation layer (A12) In Fig. 7, the optical compensation layer (A12) exhibits inverse dispersion as shown in the figure. Further, the retardation film composed of the following TAC film also exhibits inverse dispersion. [Reference 13] 15^ The acrylic adhesive was applied to the two layers of the optical compensation layer (A12) of the above-mentioned Reference Example 12. Thus, the optical compensation layer (Ai3) was produced. [Reference Example 14] ▲The following Wei component and the following two were produced. The alcohol component is synthesized into a polyester resin. The inherent viscosity of the resin is 0 426 dL/g, and the glass transition temperature (10) is 30.1 c. The thickness of the resin is formed into a sheet shape to obtain a thickness of 1 a film of the core. An optical compensation layer (ΑΜ) is formed by stretching the film at a fixed point by a fixed length at 13 holes. The optical compensation layer (4) has an in-plane phase difference of Re4l3Qnm. And the thickness direction phase difference toe is Wm. Further, the optical compensation layer (A14) shows the wavelength dependence of the inverse dispersion 39 20 0907509. Dicarboxylic acid component: 1,4-cyclohexanedicarboxylic acid (trans: cis = 95: 5) diol component: 9,9-bis[4-(2-hydroxyethoxy)benzene] 1,4-cyclohexanedimethanol (Morby) = 80 : 20 5 [Reference Example 15] 8.8 g of a polyvinyl alcohol-based resin (manufactured by Nippon Synthetic Chemical Co., Ltd., trade name "NH-18") (degree of polymerization = 18 〇〇, degree of saponification = 99 〇%) After drying for 2 hours at 1 〇 5 〇 c, it was dissolved in 167 2 dimethyl dimethyl hydrazine (E > MS 〇). Then, 2.98 g was added. 2-methoxy-naphthaldehyde and 〇8〇g of p-toluenesulfonic acid. Hydrazine hydrate, 10 was stirred at 4 ° C for 1 hour. To the reaction solution was added 3 18 g of benzaldehyde, and at 40. After stirring for 1 hour, additional 23 60 ^ 1 ^ diethoxyethane (shrinkage) was added and stirred at 40 ° C for 3 hours. Thereafter, 2.13 g of triethylamine was added to complete the reaction. The obtained crude product & 1 L of methanol was reprecipitated. The polymer obtained by filtering the precipitate was dissolved in tetrahydrofuran 15 and reprecipitated again with methanol. The precipitate was filtered and dried to obtain ll_5 g. Polymer. The poly is measured by ihnmr In the case of the object, as shown below, it has a repeating unit represented by the following formula (5), and l:m: n: 〇 (mr ratio) = 11 : 37 : 45 : 7. Further, by the difference When the glass transition temperature (Tg) of the polymer was measured by a scanning calorimeter, it was 123 〇c. Further, the absolute value (C [550]) of the photoelastic coefficient of the 20 polymer was 2.4 x 〇 - nm 2 / N. As a result of measurement of Wnmf^dmso): 0.8-2.3 (methylene group of main chain methylene group and condensed moiety) 3.4-4.4 (bonding hydroxymethyl group of methoxy group, methoxy group of methoxy group, and hydroxyl group) 40 200907509 4.5-5.1 (secondary sulfhydryl group) 5.4-5.9 (secondary sulfhydryl group) 6.4 (methine group of 2-oxophthalene) 7.1-7.5 (2-oxophthalene and Aromatic protons of benzene) 5 7.7-8.8 (aromatic protons of 2-methoxynaphthalene)

_ .  (5) The polymer was dissolved in methyl ethyl ketone (MEK) and cast onto a base material (PET) to have a thickness of 110# m after drying to obtain a polyethylene acetal film. After the base material was peeled off, the optical compensation layer (A15) was produced by stretching the film twice in the width direction by a free end extension method at 14 °C. The aforementioned optical compensation layer (A15) has nx > ny = nz (Nz coefficient 1. The relationship of 00) is 5 〇 # m, the in-plane retardation Re is 20 14 〇 nm, and the thickness direction directional difference Rth is 140 nm. Further, the optical compensation layer (A15) exhibits wavelength dependence of inverse dispersion. [Reference Example 16] The optical compensation layer was produced in the same manner as in Reference Example 15 except that the polyethylene film-cut film was stretched twice in the width axis direction with the mouth end Hi: at 14 0 C, that is, 41 200907509. (A16). The optical compensation layer (A16) has a relationship of nx > ny > nz (Nz coefficient = 1_00), the thickness of which is 5 〇 / / m, and the in-plane retardation value 1 is 14 〇 11 ° 1 ' and the thickness direction The position difference Rth is 150 nm. Further, the optical compensation layer (A16) exhibits wavelength dependence of inverse dispersion. 5 [Polarizing Plate] [Reference Example 17] Prepare a polarizing plate manufactured by Toho Electric Co., Ltd., trade name r SIG1423DU". This polarizing plate was used as a polarizing plate. [Reference Example 18] The optical compensation layer (A1) of the above-mentioned Reference Example 1 was placed on one side of the polarizing plate (m) of the above-mentioned Reference Example 17 via an acrylic pressure-sensitive adhesive (thickness: 20 #m). The absorption axis of the polarizing plate (B1) is perpendicular to the extending axis (slow axis) of the optical compensation layer (A1). In this way, a polarizing plate (B2) is produced. [Reference Example 19] The optical compensation layer (A3) of the above-mentioned Reference Example 3 was attached to one side of the polarizing plate (B1) of the above-mentioned Reference Example 17 via an acrylic pressure-sensitive adhesive (thickness: 20/zm). The absorption axis of the polarizing plate (B1) is perpendicular to the extension axis (slow axis) of the optical compensation layer (A3). In this way, a polarizing plate (B3) is produced. [Reference Example 20] The optical compensation layer (A4) of the above Reference Example 4 was attached to one side of the polarizing plate of the above-mentioned Reference Example 17 via a (iv) acid-based adhesive (thickness: 20 #m), and the polarizing plate was placed. The absorption axis of (B1) is perpendicular to the extension axis (slow axis) of the aforementioned optical compensation layer (a4). In this way, a polarizing plate (B4) is produced. [Reference Example 21] 42 200907509 The optical compensation layer (A6) of the above-mentioned Reference Example 6 was placed on one side of the polarizing plate (β1) of the above-mentioned Reference Example 17 via an acrylic pressure-sensitive adhesive (thickness: 20 #m). The absorption axis of the polarizing plate (B1) is perpendicular to the extension axis (slow axis) of the optical compensation layer (A6). In this way, a polarizing plate (B5) is produced. [Reference Example 22] The optical compensation layer (A7) of the above-mentioned Reference Example 7 was attached to one side of the polarizing plate (B1) of the above-mentioned Reference Example 17 via an acrylic adhesive (thickness: 20 " m). The absorption axis of the polarizing plate (B1) is perpendicular to the extending axis (slow axis) of the optical compensation layer (A7). In this way, a polarizing plate (B6) is produced. [Reference Example 23] A polarizing plate with a compensation plate for VA, manufactured by Nitto Denko Corporation, and a product name X-Plate (NXP). This polarizing plate was used as a polarizing plate (B7). [Reference Example 24] The optical compensation layer (A丨〇) of the above Reference Example 10 was placed on one side of the polarizing plate (B1) of the above-mentioned Reference Example 17 via an acrylic adhesive 15 (thickness: 20 #m). The absorption axis of the polarizing plate (B1) is perpendicular to the extension axis (slow axis) of the optical compensation layer (A1〇). In this way, a polarizing plate (B8) is produced. [Reference Example 25] A polarizing plate manufactured by Nitto Denko Corporation and the trade name "SEG1423" were prepared. The polarizing plate was used as a polarizing plate (B9). [Reference Example 26] The optical compensation layer (A 2) of the above Reference Example 2 was placed on one side of the polarizing plate (B9) of the above-mentioned Reference Example 25 via an acrylic adhesive (thickness: 20 / / m). In this way, a polarizing plate (Bl〇) is produced. [Reference Example 27] The optical compensation layer (A11) of the above-mentioned Reference Example 11 was placed on one side of the polarizing plate (B1) of the above-mentioned Reference Example 17 via an acrylic pressure-sensitive adhesive (thickness: 20/zm). The absorption axis of the polarizing plate (B1) is perpendicular to the 5 extension axis (slow axis) of the optical compensation layer (A11). In this way, a polarizing plate (B11) is produced. [Reference Example 28] The optical compensation layer (A5) of the above Reference Example 5 was interposed with an acrylic adhesive (thickness. 20//m) was attached to the side of the optical compensation layer (A10) of the polarizing plate (B8) of the aforementioned Reference Example 24. In this way, a polarizing plate (B12) is produced. [Reference Example 29] The optical compensation layer (a5) of the above-mentioned Reference Example 5 was placed on one side of the polarizing plate (B1) of the above-mentioned Reference Example 17 via an acrylic pressure-sensitive adhesive (thickness: 20/im). The absorption axis of the polarizing plate (B1) is perpendicular to the extension axis (slow axis) of the optical compensation layer (A5). In this way, a polarizing plate (B13) is produced. [Reference Example 30] The optical compensation layer (A14) of Reference Example 14 was placed on one side of the polarizing plate (B1) of Reference Example 17 via an acrylic adhesive back K thickness · 20 #m). The absorption axis of the polarizing plate (B1) is perpendicular to the optical compensation layer (I axis of the ai sentence). In this way, a polarizing plate (B23) is produced. [Reference Example 31] The optical compensation layer (A15) of Reference Example 15 was adhered to one side of the polarizing plate (B1) of the above-mentioned reference example via an acrylic adhesive (thickness: 20 #m). The absorption axis of the polarizing plate (B1) is perpendicular to the extending axis (slow sleeve) of the optical compensation layer (A15). In this way, a polarizing plate (b24) is produced. 44 200907509 [Reference Example 32] The optical compensation layer (ai 6) of the above-mentioned Reference Example 16 was placed on the side of the polarizing plate (3) with an acrylic acid-based adhesive (thickness: 20 (four)) to make the polarizing plate The absorption axis of (8)) is perpendicular to the 5 extension axis (slow axis) of the optical compensation layer (Al6). In this way, a polarizing plate (b25) is produced. [Polarizing plate with optical compensation layer] [Reference Example 33] The optical compensation layer (A2) of Reference Example 2 was adhered to the thickness of the acrylic acid. 20#m) is attached to the polarizing plate (the optical compensation layer (A1) side of the above reference example). Thus, a polarizing plate (B14) with an optical compensation layer is formed. [Reference Example 34] The optical compensation layer (A2) of the aforementioned Reference Example 2 is adhered by an acrylic acid layer (thickness. 20 "m) is attached to the side of the optical compensation layer (A3) of the polarizing plate (B3) of the aforementioned Reference Example 19. In this way, gp produces a polarizing plate (B15) with an optical compensation layer. [Reference Example 35] The optical compensation layer (A5) of the above Reference Example 5 was attached to the optical compensation layer (A4) of the polarizing plate (B4) of the above Reference Example 2 via an acrylic adhesive (thickness: 20/zm). )side. In this way, a polarizing plate (B16) with an optical compensation layer was produced. [Reference Example 36] The optical compensation layer (A5) of the above Reference Example 5 was attached to the optical plate of the polarizing plate (B5) of the above-mentioned Reference Example 21 via an acrylic adhesive (thickness: 20 #m). (A6) side. In this way, a polarizing plate with an optical compensation layer was prepared (Β17) 〇 [Reference Example 37] The optical compensation layer (Α5) of the above Reference Example 5 was occupied with 5 agents by an acrylic acid (thickness: 2) 〇//m) is attached to the side of the optical compensation layer (10) of the polarizing plate (4) of the aforementioned reference example π. In this way, the offset plate (B18) with the optical compensation layer is produced. [Reference Example 38] The optical compensation layer (A8) of the above Reference Example 8 was adhered to the polarizing plate (10) of the above Reference Example 2 via an acrylic-based adhesive 10 (thickness: 20/m). Layer (A4) side. In this way, a polarizing plate (B19) with an optical compensation layer was produced. [Reference Example 39] The optical compensation layer (A8) of the above-mentioned Reference Example 8 was adhered to the polarizing plate of the reference example π (the optical compensation layer (A7) of (10)) via the acrylic adhesive 5 (thickness: plus (9)). In this way, a polarizing plate (B20) with an optical compensation layer is produced. [Reference Example 40] 2 The optical compensation layer (A9) of Reference Example 9 is adhered to the acrylic resin by 20 agents (thickness·· 2〇/zm) is attached to one side of the polarizing plate (B1) of the aforementioned reference example n such that the absorption axis of the polarizing plate (B1) is perpendicular to the slow axis of the optical compensation layer (A9). A polarizing plate (B 2 i) with an optical compensation layer was produced. [Reference Example 41] The optical compensation layer (A13) of the above Reference Example 13 was adhered to the acrylic adhesive 46 200907509 (thickness: 20//m). On one side of the polarizing plate (B9) of the above-mentioned Reference Example 25. Thus, a polarizing plate (B22) with an optical compensation layer was produced. [Reference Example 42] The optical compensation layer (A2) of the aforementioned Reference Example 2 was used. Adhesively adhered to the side of one side of the polarizing plate (B23) of Reference Example 30 by means of an acrylic adhesive 5 (thickness: 20/m). Thus, an optical compensation layer was produced. The polarizing plate (B26) of the reference example 30 was attached to the optical compensation layer (A8) of the above-mentioned Reference Example 8 via an acrylic adhesive (thickness: 20/m). B10) One of the 10 sides. Thus, a polarizing plate (B27) with an optical compensation layer was produced. [Reference Example 44] The optical compensation layer (A 2) of the above Reference Example 2 was adhered via a propionic acid system. The agent (thickness: 20/m) was attached to one side of the polarizing plate (B24) of the above-mentioned Reference Example 31. Thus, a polarizing plate (B28) with an optical compensation layer was produced. 15 [Reference Example 45] The optical compensation layer (A 8) of the above-mentioned Reference Example 8 was adhered to one side of the polarizing plate (B24) of the above-mentioned Reference Example 31 via an acrylic adhesive (thickness: 20 / / m). The polarizing plate (B29) of the optical compensation layer was attached. [Reference Example 46] 20 The optical compensation layer (A2) of the above Reference Example 2 was attached to the above reference example via an acrylic adhesive (thickness: 20/m). One side of the polarizing plate (B25) of 32. Thus, a polarizing plate (B30) with an optical compensation layer was produced. [Reference Example 47] The optical compensation layer (A8) of the aforementioned Reference Example 8 was interposed by C. The olefin-based adhesive 47 200907509 (thickness: 20# m) was attached to one side of the polarizing plate (B25) of the above-mentioned Reference Example 32. Thus, a polarizing plate (B31) with an optical compensation layer was produced. Liquid crystal cell] [Reference Example 48] 5 After taking out the liquid crystal panel from a commercially available liquid crystal display device (32-inch LCD TV, brand name "BraVIAS 2500 32" manufactured by SONY Co., Ltd.) containing the VA mode liquid crystal cell, it is placed in the liquid crystal cell. The optical films such as the square polarizing plate are all removed. The liquid crystal cell (C) was obtained by washing the front and back surfaces of the glass plate of the liquid crystal cell. [Liquid Crystal Panel and Liquid Crystal Display Device] (Example 1) The polarizing plate (B 2) of the above-mentioned Reference Example 18 was attached to the liquid crystal cell of the above Reference Example 48 via an acrylic adhesive (thickness: 20 " m). c) on the visual side, with the optical compensation layer (A1) side being the liquid crystal cell (C) side, and the direction of the extension axis (absorption axis) of the polarizing plate 15 (B2) and the long side of the liquid crystal cell (C) The direction is parallel, and then the polarizing plate (B14) of the optical compensation layer of the above-mentioned Reference Example 33 is attached to the backlight side of the liquid crystal cell (C) via an acrylic adhesive (thickness: 2Q " m) and optically The compensation layer (A2M material of the liquid crystal cell 20 (C) side" is such that the direction of the extension axis (absorption axis) of the polarizing plate (B14) with the optical compensation layer is perpendicular to the longitudinal direction # of the liquid crystal cell (C), that is, The liquid crystal panel (4). At this time, the extending axis of the polarizing plate (4) is perpendicular to the extending axis of the polarizing plate (B14) with the optical compensation layer. The "light" of the former liquid (four) display device is combined, that is, Create a liquid crystal display: device (D1). The structure of the above liquid crystal panel (ρι) is shown in the following table. 00907509 In Table 1, the visual side of the liquid crystal panel is above, and the backlight side is described below, and the same applies to the following Table 2. (Example 2) The polarizing plate of the above-mentioned Reference Example 19 (B 3) The acrylic adhesive (thickness: 5: m) is attached to the visual side of the liquid crystal cell (C) of the above-mentioned Reference Example 48, and the optical compensation layer (A3) side is the liquid crystal cell (C) side. The direction of the extension axis (absorption axis) of the polarizing plate (B3) is parallel to the longitudinal direction of the liquid crystal cell (C). Then, the polarizing plate (B15) of the optical compensation layer of the above-mentioned Reference Example 34 is sandwiched by acrylic. An adhesive (thickness: 20 μm) is attached to the backlight side of the liquid crystal 10 unit (C), and the optical compensation layer (A2) side is the liquid crystal cell (C) side 'the polarizing plate with the optical compensation layer ( The direction of the extension axis (absorption axis) of B15) is perpendicular to the longitudinal direction of the liquid crystal cell (C), that is, the liquid crystal panel (P2) is obtained. At this time, the extension axis of the polarizing plate (B3) and the optical compensation layer described above are The extending axis of the polarizing plate (B15) is vertical. The backlight of the liquid crystal panel (p2) and the original liquid crystal display device of 15 The liquid crystal display device (D2) was produced by unit bonding, and the structure of the liquid crystal panel (P2) is shown in the following Table 1. (Example 3) The polarizing plate (B4) of the above Reference Example 20 was sandwiched with an acrylic adhesive. (thickness: 20 μm) is attached to the visual side of the liquid crystal cell (c) of the above-mentioned Reference Example 48, 20, and the side of the optical compensation layer (A4) is the liquid crystal cell (C) side, so that the polarizing plate (B4) The direction of the extension axis (absorption axis) is parallel to the longitudinal direction of the liquid crystal cell, and then the polarizing plate (B16) of the optical compensation layer of Reference Example 35 is pasted with an acrylic adhesive (thickness: 2 〇em). On the backlight side of the liquid crystal cell (c), and on the side of the optical compensation layer (A5), the liquid crystal cell 49 200907509 (C) side is the extension axis of the polarizing plate (gig) of the optical compensation layer (absorbed) The direction of the axis is perpendicular to the longitudinal direction of the liquid crystal cell (c), that is, the liquid crystal panel (P3) is obtained. At this time, the extending axis of the polarizing plate (B4) is perpendicular to the extending axis of the polarizing plate (B16) with the optical compensation layer. The liquid crystal display device (D3) is produced by combining the liquid crystal panel (p3) with the backlight unit of the original liquid crystal display device of 5. The structure of the liquid crystal panel (P3) described above is shown in Table 1 below. (Example 4) The polarizing plate (B5) of the above-mentioned Reference Example 21 was adhered to the visual side of the liquid crystal cell (c) of the above-mentioned Reference Example 48 via an acrylic adhesive (thickness: 20/m), 10 and The optical compensation layer (A6) side is on the liquid crystal cell (C) side, and the direction of the extension axis (absorption axis) of the polarizing plate (B5) is parallel to the longitudinal direction of the liquid crystal cell (c), and then the reference example is used. A polarizing plate (ΒΠ) with an optical compensation layer of 36 attached to the backlight side of the liquid crystal cell (c) via an acrylic adhesive (thickness: 2〇//111) and an optical compensation layer (A5) The side of the liquid crystal cell 15 (C) side is such that the direction of the extension axis (absorption axis) of the polarizing plate (B17) with the optical compensation layer is perpendicular to the longitudinal direction of the liquid crystal cell (c), that is, the liquid crystal panel is obtained (P4). ). At this time, the extending axis of the polarizing plate (B5) is perpendicular to the extending axis of the polarizing plate (B17) with the optical compensation layer. The liquid crystal panel (p4) was combined with the backlight unit of the original liquid crystal display device to produce a liquid crystal display device (D4). The structure of the liquid crystal panel (P4) is shown in Table 1 below. (Example 5) The polarizing plate (B6) of the above-mentioned Reference Example 22 was adhered to the visual side of the liquid crystal cell (6) of the above-mentioned Reference Example 48 via an acrylic adhesive (thickness: 20/m), and an optical compensation layer was used. The side of (A7) is the liquid crystal cell (c) side, and the direction of the extension axis (absorption axis) of the polarizing plate 50 200907509 (B6) is aligned with the longitudinal direction of the liquid crystal cell (c). The polarizing plate (B18) with the optical compensation layer is adhered to the backlight side of the liquid crystal cell (c) via an acrylic adhesive (thickness: 2 〇 (4), and the liquid crystal is provided on the side of the optical compensation layer (A5). On the side of the unit 5 (C), the direction of the extension axis (absorption axis) of the polarizing plate (B18) to which the optical compensation layer is attached is perpendicular to the longitudinal direction of the liquid crystal cell (C), thereby obtaining a liquid crystal panel (P5). At this time, the extending axis of the polarizing plate (7) 6) is perpendicular to the extending axis of the polarizing plate (B18) with the optical compensation layer. The liquid crystal display device (D5) is produced by combining the liquid crystal panel (p5) with the backlight unit of the original liquid crystal display device. The structure of the liquid crystal panel (P5) described above is shown in the following table. (Example 6) The polarizing plate (B19) of the optical compensation layer of the above-mentioned Reference Example 38 was attached to the liquid crystal cell (c) of the above-mentioned Reference Example 48 via an acrylic adhesive (thickness: 2 〇 #m). On the visual side, the optical compensation layer (A8) side is the liquid crystal cell 15 (C) side, and the direction of the extension axis (absorption axis) of the polarizing plate (B19) with the optical compensation layer is the same as that of the liquid crystal cell (c). The direction of the long side is parallel, and then the polarizing plate (B19) of the optical compensation layer of Reference Example 38 is attached to the backlight side of the liquid crystal cell (c) via an acrylic adhesive (thickness: 20 #m), and The side of the optical compensation layer (A8) is the liquid crystal cell (the side of the side, and the direction of the extension axis (absorption axis) of the polarizing plate (B19) of the optical compensation layer 20 is perpendicular to the longitudinal direction of the liquid crystal (C) That is, the liquid crystal panel (P6) is obtained. At this time, the extending axis of the polarizing plate (B19) with the optical compensation layer on the visual side is perpendicular to the extending axis of the polarizing plate (B19) with the optical compensation layer on the backlight side. The liquid crystal panel (P6) is combined with the backlight unit of the original liquid crystal display device, that is, 51 200907509 A liquid crystal display device (D6) was produced. The structure of the liquid crystal panel (P6) is shown in Table 1 below (Example 7). The polarizing plate (B2〇) of the optical compensation layer of Reference Example 39 was separated by 5 C. Dilute acid adhesive (thickness. 20 // m) is attached to the visual side of the liquid helium unit (C) of the above-mentioned Reference Example 48, and the optical compensation layer (A8) side is the liquid crystal cell (C) side 'the polarizing plate with the optical compensation layer The direction of the extension axis (absorption axis) of (B20) is parallel to the longitudinal direction of the liquid crystal cell (C), and then the polarizing plate (B20) of the optical compensation layer of the above-mentioned Reference Example 39 is adhered with an acrylic acid. 10 agent (thickness: 20 " m) is attached to the liquid crystal cell (the backlight side of the crucible, and the side of the optical compensation layer (A8) is the liquid crystal cell (the side of the lens, the polarizing plate with the optical compensation layer (B20) The direction of the extension axis (absorption axis) is perpendicular to the longitudinal direction of the liquid crystal cell (C), that is, the liquid crystal panel (P7) is obtained. At this time, the extension axis of the polarizing plate (B20) with the optical compensation layer on the aforementioned visual side is obtained. The liquid crystal display device (D7) is formed by combining the liquid crystal panel (P7) with the backlight unit of the original liquid crystal display device to form a liquid crystal display device (D7). The configuration of the liquid crystal panel (P7) described above is shown in Table 1 below. (Embodiment 8) 20 The polarizing plate (B23) of Example 30 was adhered to the liquid crystal cell of the above-mentioned Reference Example 48 (thickness side of the crucible) and the side of the optical compensation layer (A14) was the above liquid crystal via an acrylic adhesive (thickness: 20 " m). On the side of the unit (c), the direction of the extension axis (absorption axis) of the polarizing plate (B23) is parallel to the longitudinal direction of the liquid crystal cell (c), and then the optical compensation layer 52 200907509 of the reference example 42 is polarized. The plate (B26) is adhered to the liquid crystal cell 7'(c)m side' via an acrylic adhesive (thickness: 2 Å//: 〇1) and the liquid crystal cell is the optical compensation layer (A2) side. The side 'the direction of the extension axis (absorption axis) of the polarizing plate (B26) with the optical compensation layer is perpendicular to the longitudinal direction of the liquid crystal cell (c), that is, the liquid crystal panel (P8) is obtained. At this time, the polarizing plate is obtained. The extension axis of (B23) is perpendicular to the extension axis of the polarizing plate (B26) with the optical compensation layer. The liquid crystal panel (P8) is combined with the backlight unit of the original liquid crystal display device to fabricate a liquid crystal display device (D8). The configuration of the liquid crystal panel (P8) is shown in the following table (Example 9). The polarizing plate (B27) of the optical compensation layer of the test example 43 was attached to the visual side of the liquid crystal cell (C) of the aforementioned reference example 48 via an acrylic adhesive (thickness: 20 vm), and an optical compensation layer was used. The side of the (A8) side is the liquid crystal cell (c) side, and the direction of the extension axis (absorption axis) of the polarizing plate (B27) with the optical compensation layer is parallel to the longitudinal direction of the liquid crystal cell (C), and then the The polarizing plate (B27) with the optical compensation layer of Reference Example 43 is adhered to the backlight side of the liquid crystal cell (c) via an acrylic adhesive (thickness: 20/zm), and is optically compensated (A8) side. In the liquid crystal cell (C) side, the direction of the extension axis (absorption axis) of the polarizing plate (B27) with the optical compensation layer is perpendicular to the longitudinal direction of the liquid crystal cell (C), thereby obtaining a liquid crystal panel (P9). . At this time, the extending axis of the polarizing plate (B27) with the optical compensation layer on the 20-gauge side is perpendicular to the extending axis of the polarizing plate (B27) with the optical compensation layer on the backlight side. The liquid crystal display device (D9) was produced by combining the liquid crystal panel (P9) described above with the backlight unit of the original liquid crystal display device. The configuration of the liquid crystal panel (P9) described above is shown in Table 1 below. 53 200907509 (Example ίο) The polarizing plate (B24) of the above-mentioned Reference Example 31 was adhered to the liquid crystal cell of the above-mentioned Reference Example 48 via the acrylic adhesive (thickness: 20 / / m), and The side of the optical compensation layer (A15) is the liquid crystal cell (the side of the side, and the direction of the extension axis (absorption axis) of the fifth polarizing plate (B24) is parallel to the longitudinal direction of the liquid crystal cell (C), and then the reference example is given. The polarizing plate (B28) with an optical compensation layer attached to 44 is attached to the backlight side of the liquid crystal cell (C) via an acrylic adhesive (thickness: 2 μm), and the optical compensation layer (A2) side is the aforementioned side. On the liquid crystal cell (C) side, the direction of the extension axis 10 (absorption axis) of the polarizing plate (B28) with the optical compensation layer is perpendicular to the longitudinal direction of the liquid crystal cell (C), thereby obtaining a liquid crystal panel (P10). The extending axis of the polarizing plate (B24) on the visual side is perpendicular to the extending axis of the polarizing plate (B28) of the optical compensation layer on the backlight side. The backlight of the liquid crystal panel (P10) and the original liquid crystal display device The unit is combined to form a liquid crystal display device (D10). The aforementioned liquid crystal panel 15 The structure of (P10) is shown in the following Table 1. (Example 11) The polarizing plate (B29) with the optical compensation layer of the above-mentioned Reference Example 45 was adhered to the above via an acrylic adhesive (thickness: 20/zm). Referring to the visual side of the liquid crystal cell (C) of Example 48, and the side of the optical compensation layer (A8) is the liquid crystal cell 20 (C) side, the extension axis of the polarizing plate (B29) with the optical compensation layer (absorption axis) The direction is parallel to the longitudinal direction of the liquid crystal cell (C), and then the polarizing plate (B 2 9) of the optical compensation layer of the above Reference Example 45 is interposed with an acrylic adhesive (thickness: 20/m). Adhering to the liquid crystal cell (the backlight side of the crucible, and the side of the optical compensation layer (A8) is the liquid crystal cell (C) side, and the extension axis (absorption axis) of the polarizing plate (B29) of the compensation layer of the optical transmission 01 200907509 The direction is perpendicular to the longitudinal direction of the liquid crystal cell (C), that is, the liquid crystal panel (P11) is obtained. At this time, the extending axis of the polarizing plate (B29) with the optical compensation layer on the visual side and the optical side of the backlight side are attached. The extension axis of the polarizing plate (B29) of the compensation layer is vertical. The first five liquid crystal panels (P11) and the original liquid crystal The liquid crystal display device (D11) was produced by combining the backlight units of the display device. The structure of the liquid crystal panel (P1) is shown in Table 1 below. (Example 12) The polarizing plate of the above Reference Example 3 (B) 2 5) The liquid crystal cell of the above-mentioned Reference Example 48 is adhered to the liquid crystal cell of the above reference example 48 (thickness: 20 #m), and the optical compensation layer (A16) side is the liquid crystal cell (c) side The direction of the extension axis (absorption axis) of the polarizing plate (B 2 5) is parallel to the longitudinal direction of the liquid crystal cell (c). Next, the polarizing plate (B30) of the optical compensation layer of the aforementioned Reference Example 46 is separated. An acrylic adhesive (thickness: 2 〇 " m) is placed on the backlight side of the liquid crystal cell of the first fifteenth, and the optical compensation layer (A2) side is the side of the liquid crystal cell (c) The direction of the extension axis (absorption axis) of the polarizing plate (B3〇) of the layer is perpendicular to the longitudinal direction of the liquid crystal cell (c), that is, the liquid crystal panel (P12) is obtained. At this time, the extension axis of the aforementioned polarizing plate (7) 25 on the visual side is perpendicular to the extending axis of the polarizing plate (B 3 附) of the optical compensation layer on the backlight side. The liquid crystal display device (D12) is produced by combining the liquid crystal panel (pi2) with the backlight unit of the original liquid crystal display device. The configuration of the liquid crystal panel (P12) described above is shown in Table i below. (Example 13) The polarizing plate (B31) of the optical compensation layer of the above-mentioned Reference Example 47 was attached to the liquid crystal cell (C) of the aforementioned Reference Example 48 via a 55 200907509 acrylic adhesive (thickness: 20 #m). On the visual side, the side of the optical compensation layer (A8) is the liquid crystal cell (C) side, and the direction of the extension axis (absorption axis) of the polarizing plate (B31) with the optical compensation layer is longer than that of the liquid crystal cell (C). The side faces are parallel, and then the polarizing plate (B 31) of the optical compensation layer with reference to the above reference example 47 is attached to the backlight of the liquid crystal cell (C) via an acrylic adhesive (thickness: 20/m). On the side, the side of the optical compensation layer (A8) is the liquid crystal cell (C) side, and the direction of the extension axis (absorption axis) of the polarizing plate (B31) with the optical compensation layer is the long side of the liquid crystal cell (C). The direction is vertical, that is, the liquid crystal panel (P13) is obtained. At this time, the extending axis of the polarizing plate (B31) with the optical compensation layer on the side of the 10 mesh side is perpendicular to the extending axis of the polarizing plate (B31) with the optical compensation layer on the back side. The liquid crystal display device (D13) is produced by combining the liquid crystal panel (P13) described above with the backlight unit of the original liquid crystal display device. The structure of the liquid crystal panel (pi3) described above is shown in Table 1 below. (Comparative Example 1) The polarizing plate (B21) of the optical compensation layer of the above Reference Example 40 was attached to the liquid crystal cell (C) of the above Reference Example 48 via an acrylic adhesive (thickness: 20 " m). Side, and the side of the optical compensation layer (A9) is the liquid crystal cell (C) side 'the direction of the extension axis (absorption 20 axis) of the polarizing plate (B2i) with the optical compensation layer and the length of the liquid crystal cell (C) The polarizing plate (B21) with the optical compensation layer of the above-mentioned Reference Example 40 was attached to the backlight side of the liquid crystal cell (c) via an acrylic adhesive (thickness: 20 μm), and The side of the optical compensation layer (A9) is the liquid crystal cell (c) side, and the direction of the extension axis (absorption axis) of the polarizing plate (B21) with the optical compensation layer is the same as the longitudinal direction of the liquid crystal cell 56 200907509 (c). Vertically, the liquid crystal panel (pi4) is obtained. At this time, the & extension axis of the polarizing plate (rib) with the optical compensation layer on the visual side is perpendicular to the extending axis of the polarizing plate (B21) with the optical compensation layer on the backlight side. The liquid crystal panel (P14) is combined with the backlight unit of the original liquid crystal display device, and a liquid crystal display device is produced. The structure of the liquid crystal panel (pl4) described above is shown in Table 2 below. (Comparative Example 2) The polarizing plate (B7) of the above-mentioned Reference Example 23 was placed on the visual side of the liquid crystal cell (c) of the above-mentioned Reference Example 48 via an acrylic adhesive (thickness: 20#m), and the polarized light was applied. The direction of the extension axis (absorption axis) of the plate (B7) was parallel to the longitudinal direction of the liquid crystal cell (C), and then the polarizing plate (B7) of the above-mentioned Reference Example 23 was sandwiched with an acrylic adhesive (thickness: 20/zm). Applying a liquid crystal to the backlight side of the liquid crystal cell (c) to make the direction of the extension axis (absorption axis) of the polarizing plate (B7) with the optical compensation layer perpendicular to the longitudinal direction of the liquid crystal cell (C) 15 panel (P15). At this time, the extending axis of the polarizing plate (B7) on the visual side is perpendicular to the extending axis of the polarizing plate (B7) on the backlight side. The liquid crystal panel (P15) is combined with the backlight unit of the original liquid crystal display device to produce a liquid crystal display device (D15). The structure of the liquid crystal panel (P15) is shown in the following Table 2 ° 20 (Comparative Example 3). The polarizing plate (B8) of the above Reference Example 24 was attached to the above via an acrylic adhesive (thickness: 20 / / m). Refer to the visual side of the liquid crystal cell (C) of Example 48 and the side of the liquid crystal cell (c) with the optical compensation layer (A 10) side, and the direction of the extension axis (absorption axis) of the polarizing plate (B8) and the liquid crystal described above. The long side of the unit (C) 57 200907509 is parallel, and then the polarizing plate (m〇) of the above reference example 26 is adhered to the backlight of the liquid crystal cell (c) via an acrylic adhesive (thickness: 20 (four)). Side, and the side of the optical compensation layer (A2) is the side of the liquid crystal cell (c), and the direction of the extension axis of the light-attached/compensation layer is said to be the same as that of the above-mentioned 5 liquid crystal cell (C) The long side direction is vertical, that is, the liquid crystal panel (4) is obtained. At this time, the extending axis of the polarizing plate (10) is perpendicular to the extending axis of the polarizing plate _). The liquid crystal display device (di6) was produced by combining the liquid crystal panel (P16) with the backlight unit of the original liquid crystal display device. The structure of the liquid crystal panel (P16) described above is shown in Table 2 below. (Comparative Example 4) The polarizing plate (B11) of the above-mentioned Reference Example 27 was adhered to the visual side of the liquid crystal cell (c) of the above-mentioned Reference Example 48 via an acrylic adhesive (thickness: 20/m), and The side of the optical compensation layer (A11) is on the side of the liquid crystal cell (c), and the direction of the extension axis (absorption axis) of the polarizing plate (B11) is parallel to the longitudinal direction of the liquid crystal cell (c), and then the reference is made. The polarizing plate (B22) with the optical compensation layer of Example 41 was adhered to the backlight side of the liquid crystal cell (C) via an acrylic adhesive (thickness: 2 〇 " m), and the optical compensation layer (A13) side was used. In the liquid crystal cell (C) side, the direction of the extension axis (absorption axis) of the polarizing plate (B22) with the optical compensation layer is perpendicular to the longitudinal direction of the liquid crystal cell (C), thereby obtaining a liquid crystal panel (P17). . At this time, the extending axis of the polarizing plate (B11) is perpendicular to the extending axis of the polarizing plate (B22) to which the optical compensation layer is attached. The liquid crystal display device (D17) was produced by combining the liquid crystal panel (P17) with the backlight unit of the original liquid crystal display device. The configuration of the mooring liquid crystal panel (p 17) is shown in Table 2 below. 58 200907509 (Comparative Example 5) The polarizing plate of the above-mentioned Reference Example 28 was adhered to the liquid crystal cell of the above Reference Example 48 (thickness: 20 " m), and the optical compensation layer was used. The side of the liquid crystal cell (c) is on the side of the liquid crystal cell (c), and the direction of the extension axis (absorption axis) of the five polarizing plates (B12) is parallel to the longitudinal direction of the liquid crystal cell (c), and then the reference example 29 is used. The polarizing plate _) is adhered to the moonlight side of the liquid crystal cell (6) via a thin acid-based adhesive (thickness: 2 〇 " m), and the liquid crystal cell (c) side is on the side of the optical compensation layer (A5) The direction of the extension axis (absorption axis) of the polarizing plate (B13) of the month is perpendicular to the longitudinal direction of the liquid crystal cell (c) 1〇, that is, the liquid crystal panel (P18) is obtained. At this time, the extending axis of the polarizing plate (B12) is perpendicular to the extending axis of the polarizing plate (Bn). The liquid crystal panel (P18) is combined with the backlight unit of the original liquid crystal display device, and a liquid crystal display device (D18) is formed. The configuration of the liquid crystal panel (p(8) is shown in Table 2 below. 15 [Table 1] Liquid crystal panel embodiment 1 P1 Example 2 Example 3 Example 4 Example 5 Example 7 Example 8 Example 9 Example 10 Embodiment 11 Embodiment 12 Embodiment 13 Pre-emptive gas sr 1 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 R1 Optical compensation layer A1 --- .   A3 A4 A6 A7 A4 A7 A14 A14 A15 A15 A16 A16 Optical compensation liquid crystal cell - A8 A8 - A8 - A8 - A8 Optical compensation i ΛΟ CCCCCCCCCCCC Optical compensation; | A1 A2 A5 A5 Γ~Α5 A8 A8 A2 A8 A2 A8 A2 A8 Polarized light Banyan. 1 13 1 A3 A4 A6 Α7 A4 A7 A14 A14 A15 A15 A16 A16 〇1 B1 B1 B1 Β1 B1 B1 B1 B1 B1 B1 B1 B1 [Table 2] 59 200907509 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example ^ Liquid crystal panel u ~ρΤί P15 P16 P17 P18 Polarizer B7 Bl Bl Bl — Optical compensation layer - Λ9 A10 All A10 — Optical compensation layer ----- " - - A5 Liquid crystal cell c C c CC Optical compensation layer - A12 - Optical compensation Θ A2 A12 A5 Polarizing plate Bl B7 B9 B9 Bl The color shift measurement results of the liquid crystal display devices of Examples 1 to 7 are shown in the graphs of Figs. 8 to 14 . In addition, Embodiment 1 corresponds to FIG. 8; Embodiment 2 corresponds to FIG. 9; Embodiment 3 corresponds to FIG. 10; Embodiment 4 corresponds to FIG. 11; Embodiment 5 corresponds to FIG. 12; and Example 6 corresponds to FIG. Embodiment 7 corresponds to Figure 14. As shown in the figure, in the first to seventh embodiments, the color change when the viewing angle is moved to the left and right is small. Further, as shown in the following Table 3, in Examples 1 to 7, the black luminance was good, and the black luminance in the oblique direction was also controlled. Further, in the liquid crystal display devices of Examples 8, 10, and 12, the same color shift and average black luminance as in Example 2 were obtained, and the liquid crystal display devices of Examples 9, 11, and 13 were available and implemented. Example 7 has the same color shift and average black brightness. The color shift measurement results of the liquid crystal display devices of Comparative Examples 1 to 5 are shown in the graphs of Fig. 15 to Fig. 19. Similarly, the average black luminance of Comparative Example 丨5 was displayed (5 is shown in Table 3 below. In addition, Comparative Example 1 corresponds to Figure 15; Comparative Example 2 corresponds to Figure 16; Comparative Example 3 corresponds to Figure 17; Comparative Example 4 corresponds to Fig. 18; Comparative Example 5 corresponds to Fig. 19. As shown in the figure, in Comparative Example 1, the average black brightness of the polar angle 6 〇 azimuth angles 45, 135 ' 225, and 3 丨 5 is compared with the embodiment. Very high, and the CR in the oblique direction is very low. In Comparative Example 2, the color change when the azimuth angle is changed is large (the amplitude is large) and the waveform is relative to 45. 丨35 60 200907509 ° , 225 ° compared with the embodiment. 315° is not bilaterally symmetric. Moreover, compared with the embodiment, the average black brightness of the polar angle of 60° azimuth angles of 45°, 135°, 225°, and 315° is high, and the CR in the oblique direction is very low. In Example 3, the color change when the azimuth angle was changed was large (the amplitude was large, and the waveform was not bilaterally symmetric with respect to 45 5 ., : 135°, 225°, and 315°) as compared with the example. In Comparative Example 4 Compared with the embodiment, the color change becomes large when the azimuth angle is changed (the amplitude is large, and the waveform is relative to 45°, 135°, 225°, 315° The left-right symmetry), in addition, compared with the embodiment, the average black luminance of the polar angle of 60° azimuth angles of 45°, 135°, 225°, and 315° is high, and the CR in the oblique direction is very low. In Comparative Example 5, 10 Compared with the embodiment, the color change when the azimuth angle is changed is large (the amplitude is large, and the waveform is not bilaterally symmetric with respect to 45°, 135°, 225°, and 315°). [Table 3] Average black luminance (cd/) M2) Example 1 2. 7 Example 2 2. 0 Example 3 2. 8 Example 4 2. 8 Example 5 2. 1 Example 6 2. 2 Example 7 2. 7 Comparative Example 1 3. 1 Comparative Example 2 4. 8 Comparative Example 3 2. 7 Comparative Example 4 3. 8 Comparative Example 5 2. 9 [Possibility of Industrial Utilization] 15 As described above, the liquid crystal panel of the present invention can be displayed in a colorless and neutral manner in all directions, and has good black brightness. The liquid crystal panel of the present invention and the use of the liquid crystal display device using the liquid crystal panel include, for example, a desktop personal computer, a pen 61 200907509 type computer, a photocopying machine, and the like; a mobile phone, a clock, a digital camera, and a personal digital assistant. Portable devices such as (PDA) and portable game consoles; home appliances such as video recorders, televisions, microwave ovens; reversing monitors, car navigation system monitors, car audio and other in-vehicle devices; store information monitoring devices, etc. A maintenance device such as a display device or a monitoring monitor, a care-medical device such as a care monitor or a medical monitor, and the like are not limited to the above-described uses, and are applicable to a wide range of fields. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing an example of the structure of a liquid crystal panel of the present invention. Fig. 2 is a schematic cross-sectional view showing another example of the structure of the liquid crystal panel of the present invention. Fig. 3 is a schematic cross-sectional view showing an example of the structure of a liquid crystal cell. The 4th figure shows an unintentional cross-sectional view of the liquid crystal panel structure. 15 The fifth (A), (B), and (C) drawings show schematic cross-sectional views of examples of the structure of the polarizing plate. Figure 6 is a schematic diagram showing the relationship between polar angle and azimuth. Fig. 7 is a graph showing an example of wavelength dispersion of a phase difference film according to an embodiment of the present invention. 20 Fig. 8 is a graph showing the color shift result of Example 1 of the present invention. Fig. 9 is a graph showing the color shift result of Example 2 of the present invention. Fig. 10 is a graph showing the color shift result of Example 3 of the present invention. Fig. 11 is a graph showing the color shift result of Example 4 of the present invention. Fig. 12 is a graph showing the color shift result of Example 5 of the present invention. 62 200907509 Fig. 13 is a graph showing the color shift result of Example 6 of the present invention. Fig. 14 is a graph showing the color shift result of Example 7 of the present invention. Fig. 15 is a graph showing the color shift result of Comparative Example 1. Fig. 16 is a graph showing the color shift result of Comparative Example 2. 5 Fig. 17 is a graph showing the color shift result of Comparative Example 3. Fig. 18 is a graph showing the color shift result of Comparative Example 4. Fig. 19 is a graph showing the color shift result of Comparative Example 5. [Description of main component symbols] 10 liquid crystal panel 133 spacer 11a first optical compensation layer 141 polarizer lib first optical compensation layer 142 protective layer 12 second optical compensation layer C optical compensation layer (A1) birefringence 12a second Optical compensation layer wavelength dispersion 12b Second optical compensation layer PI Optical compensation layer (A2) Birefringence 13 Liquid crystal early element rate Wavelength dispersion 14 Polarizing plate C Optical compensation layer (A3) Birefringence 14a First polarizer wavelength dispersion 14b 2nd polarizer TAC optical compensation layer (A12) double fold 15a optical compensation layer transmittance rate wavelength dispersion 15b optical compensation layer 131 liquid crystal layer 132a anti 132b button 63

Claims (1)

200907509 X. Patent Application Range: 1. A liquid crystal panel having a liquid crystal cell, a first polarizer, a second polarizer, a first optical compensation layer, and a second optical compensation layer, and the liquid crystal panel has at least two of the foregoing In the first optical compensation layer, the first polarizer is disposed on one side of the liquid crystal cell, and the first optical compensation layer is disposed between the liquid crystal cell and the first polarizer, and the liquid crystal cell is further disposed The second polarizer is disposed on one side, and the first optical compensation layer and the second optical compensation layer are disposed between the liquid crystal cell and the second polarizer, and the first optical compensation layer and the second optical The compensation layer satisfies the following relations (I) and (Π): Nz(l)<Nz(2) (I); Wd(l)< Wd(2) (Π); Νζ(1): 1st Νζ coefficient of optical compensation layer; 15 Νζ(2): Νζ coefficient of the second optical compensation layer; Wd(l): wavelength dispersion of the first optical compensation layer [Re(380)/Re(550)]; Wd(2 ): wavelength dispersion of the second optical compensation layer [Re(380)/Re(550)]; 20 Νζ system 娄i:=(nx-nz)/(nx-ny); nx : in-plane refractive index of the layer is Refractive index of the largest direction (slow axis direction); ny: refractive index of the direction perpendicular to the aforementioned nx direction (fast axis direction) in the plane of the layer; 64 200907509 nz : relative to the aforementioned nx and the aforementioned ny directions Refractive index in the direction of the vertical layer thickness; Re(;l): the in-plane phase difference of the layer represented by the following formula (dish) at the wavelength (again); 5 Re=(nx-ny) · d (ΙΠ) Id=layer thickness. 2. The liquid crystal panel of claim 1, wherein the Nz coefficient of the first optical compensation layer is in the range of 1 to 2.5. 3. The liquid crystal panel of claim 1, wherein the wavelength dispersion W d (1) of the first optical compensation layer is a flat dispersion expressed by the following formula (IV) and expressed by the following formula (V). At least one wavelength dispersion of the inverse dispersion, and the wavelength dispersion Wd(2) of the second optical compensation layer is a positive dispersion expressed by the following formula (VI), Wd(l): Re(380)/Re(550)=1 (IV); 15 Wd(l): Re(380)/Re(550)< 1 (V); Wd(2): Re(380)/Re(550)> 1 (VI). 4. The liquid crystal panel of claim 3, wherein in the above formula (IV), Re(380)/Re(550) is in the range of 0.95 to 1.05; in the above formula (V), Re(380) ) / Re (550) is less than 0.95; in the above formula (VI), 20 Re (380) / Re (550) is a value greater than 1.05. 5. The liquid crystal panel of claim 1, wherein the first optical compensation layer is a positive A plate having a relationship of nx > ny=nz, and the second optical compensation layer has nx=ny > nz The negative C plate of the relationship. 6. The liquid crystal panel according to claim 1, wherein the second optical compensation layer and the first portion are formed from the liquid crystal cell side between the liquid crystal cell 65 200907509 and the second polarizer The second optical compensation layer and the first optical compensation layer are disposed in the order of the optical compensation layer. The liquid crystal panel of claim 1, wherein at least two of the second optical compensation layers are disposed, and the second optical compensation layer is disposed between the liquid crystal cell and the second polarizer. The liquid crystal panel of claim 7, wherein the second optical compensation layer and the second optical compensation layer are formed from the liquid crystal cell side between the liquid crystal cell and the first polarizer In the order of 10, the second optical compensation layer and the second optical compensation layer are combined. 9. The liquid crystal panel according to claim 1, wherein the first polarizer side is disposed on a visual side, and the second polarizer side is disposed on a backlight side. 10. The liquid crystal panel of claim 1, wherein the liquid crystal alignment mode 15 is a vertical alignment (VA) mode. 11. The liquid crystal panel according to claim 1, wherein the first optical compensation layer is selected from the group consisting of a norbornene resin, a cellulose resin, a polyester resin, and a polyvinyl acetal resin. A retardation film of at least one of the groups of resins. 12. The liquid crystal panel of claim 1, wherein the second optical compensation layer contains a retardation film of a non-liquid crystalline polymer. 13. The liquid crystal panel of claim 12, wherein the non-liquid crystalline polymer is selected from the group consisting of polyamine, polyimine, polyester, poly(arylene ether), polyether ketone, and polyamidoxime. The group consisting of imine and polyester quinone is up to 66 200907509 with one less polymer. A liquid crystal display device comprising a liquid crystal panel, wherein the liquid crystal panel is a liquid crystal panel of claim 1 of the patent application. 67